JP6017172B2 - Cartilage conduction vibration source device and mobile phone - Google Patents

Description

  The present invention relates to a cartilage conduction vibration source device, a mobile phone, and the like.

  Conventionally, various mobile phones have been proposed for various purposes. For example, in order to provide a mobile phone that can be heard clearly even under high noise, a bone-conduction speaker is employed, and a mobile phone including an external ear canal closing means has been proposed. (Patent Document 1) On the other hand, as a method of using a bone conduction speaker, the vibration surface abutted against the tragus is manually adjusted to adjust the pressure with which the abutment comes into contact with the tragus so that the cartilage guide is adapted to the magnitude of external noise It has also been proposed to change the transmission ratio between voice information via the air and voice information via the air guide. (Patent Document 2) Further, it has been proposed to use a piezoelectric element as a vibration source for bone conduction. In addition, for mobile phones, a headset with a wireless communication function that is connected to a communication device capable of voice communication via a communication network and capable of performing a voice call via a communication device with a communication partner has been proposed. Yes. (Patent Document 3) Further, a glasses-type interface device provided with a display unit for displaying video information sent from a mobile phone or the like to a wireless communication unit on a lens, or an audio unit having a bone conduction earphone and a microphone is also proposed. ing. (Patent Document 4)

JP 2003-348208 A Japanese Patent No. 4541111 JP 2006-86581 A JP 2005-352024 A

  However, there are many problems to be further studied regarding the driving of the vibration source for the mobile phone and the configuration of the mobile phone.

  In view of the above, an object of the present invention is to provide a cartilage conduction vibration source for a mobile phone with a simpler configuration and a mobile phone with a simpler configuration.

  To achieve the above object, the present invention provides an audio signal input unit that inputs an audio signal, an acoustic processing unit that variably processes an audio signal input from the audio signal input unit for cartilage conduction vibration, and an acoustic processing unit A control signal input unit that inputs a control signal for variable processing in the sound signal, and an amplifier unit that outputs the processing signal processed by the acoustic processing unit to the cartilage conduction vibration source as a drive signal A cartilage conduction vibration source device is provided. As a result, it is possible to drive the cartilage conduction vibration source for appropriate cartilage conduction according to the situation change.

  According to a specific feature of the present invention, the sound processing unit performs sound processing so that a drive signal having different frequency characteristics is output to the cartilage conduction vibration source between the sound that passes through the communication unit and the sound that does not pass through the communication unit. change. As a result, it is possible to drive a cartilage conduction vibration source that enhances the contribution of direct air conduction in the cartilage conduction compared to the voice through the communication unit for the voice not through the communication unit.

  According to another specific feature of the present invention, the sound processing unit changes the sound processing so that a drive signal having different frequency characteristics is output to the cartilage conduction vibration source between the normal person and the hearing impaired person. Thereby, it is possible to drive a cartilage conduction vibration source that enhances the contribution of cartilage bone conduction in cartilage conduction compared to normal persons for a hearing impaired person.

  According to another specific feature of the present invention, the acoustic processing unit outputs a drive signal having different frequency characteristics to the cartilage conduction vibration source when the ear canal entrance is open and when the ear canal is closed. Change acoustic processing. Thus, when the ear canal entrance is closed, it is possible to drive the cartilage conduction vibration source that stops the direct air conduction contribution in the cartilage conduction.

  According to another specific feature of the present invention, the acoustic processing unit includes a plurality of acoustic processing units, and changes the contribution of the plurality of acoustic processing units to the drive signal based on the control signal. Thereby, optimum acoustic processing is prepared for each conductive element of cartilage conduction, and variable acoustic processing can be controlled as a change in their contribution.

  According to another aspect of the present invention, an audio signal input unit that inputs an audio signal, a plurality of acoustic processing units that process the audio signal input from the audio signal input unit for cartilage conduction vibration, and a plurality of acoustic signals There is provided a cartilage conduction vibration source device including an amplifier unit for outputting a processing signal processed and synthesized by the processing unit to a cartilage conduction vibration source as a drive signal. Thereby, the acoustic processing can be performed as a synthesis of the optimal acoustic processing for each conduction element of cartilage conduction.

  According to a specific feature, the plurality of acoustic processing units include a first acoustic processing unit that performs acoustic processing based on a frequency characteristic of cartilage conduction from the cartilage conduction vibration source, and direct air from the cartilage conduction vibration source. And a second acoustic processing unit that performs acoustic processing based on the frequency characteristics of the lead.

  According to another aspect of the present invention, an audio signal input unit that inputs an audio signal, an audio processing unit that processes the audio signal input from the audio signal input unit for cartilage conduction vibration, and a process performed by the audio processing unit An amplifier unit for outputting the processed signal as a drive signal to the cartilage conduction vibration source, and the amplifier unit outputs a predetermined drive signal level for the cartilage conduction vibration source according to the input signal level. A cartilage conduction vibration source device having a gain adjusting unit for adjusting the gain is provided. This makes it possible to realize appropriate cartilage conduction that makes the most of the ability of the cartilage conduction vibration source.

  According to a specific feature of the present invention, there is provided a mobile phone having the cartilage conduction vibration source device as described above. According to a more specific feature, the mobile phone is configured as a mobile device having a touch panel combined large screen display unit. According to a more specific feature, a cartilage conduction portion is provided at the tip of a telescopic support body coupled to the portable device body by a universal joint.

  According to another feature of the present invention, the touch panel combined large screen display unit provided in the main body, and an audio output unit provided at the tip of a telescopic support coupled to the main body by a universal joint, A mobile phone configured as a mobile device is provided. As a result, a call can be made with a simple operation while viewing the large screen. According to a specific feature, the audio output part is a cartilage conduction part.

  As described above, according to the present invention, a cartilage conduction unit driving device for a mobile phone or the like that is easier to configure and a mobile phone that is easier to configure are provided.

It is a perspective view which shows Example 1 of the mobile phone which concerns on embodiment of this invention. Example 1 It is a side view of Example 1 which shows the function of a right ear use state and a left ear use state. 1 is a block diagram of Example 1. FIG. It is a flowchart of operation | movement of the control part in Example 1 of FIG. It is a perspective view which shows Example 2 of the mobile telephone which concerns on embodiment of this invention. (Example 2) It is a perspective view which shows Example 3 of the mobile telephone which concerns on embodiment of this invention. (Example 3) It is a perspective view which shows Example 4 of the mobile telephone which concerns on embodiment of this invention. Example 4 FIG. 10 is a block diagram of Example 4. It is a principal part conceptual block diagram which shows the structure relevant to the ear plug bone conduction effect of Example 4. FIG. It is a flowchart of operation | movement of the control part in Example 4 of FIG. It is a perspective view which shows Example 5 of the mobile telephone which concerns on embodiment of this invention. (Example 5) It is a flowchart of operation | movement of the control part in Example 5 of FIG. It is a perspective view which shows Example 6 of the mobile telephone which concerns on embodiment of this invention, (A) is a front perspective view, (B) is a back perspective view, (C) is B- of back perspective view (B). It is sectional drawing in a B cut surface. (Example 6) It is a flowchart of operation | movement of the control part in Example 6 of FIG. It is a perspective view which shows Example 7 of the mobile phone based on embodiment of this invention, (A) is a front perspective view, (B) is a back perspective view, (C) is B- of back perspective view (B). It is principal part sectional drawing in a B cut surface. (Example 7) It is a flowchart of operation | movement of the control part in Example 7 of FIG. It is a perspective view which shows Example 8 of the mobile phone which concerns on embodiment of this invention, (A) is a front perspective view, (B) is a back perspective view, (C) is B- of back perspective view (B). It is sectional drawing in a B cut surface. (Example 8) It is a perspective view which shows Example 9 of the mobile phone based on embodiment of this invention, (A) is a front perspective view, (B) is a back perspective view, (C) is B- of back perspective view (B). It is sectional drawing in a B cut surface. Example 9 It is a perspective view which shows Example 10 of the mobile telephone which concerns on embodiment of this invention. (Example 10) It is a perspective view which shows Example 11 of the mobile telephone which concerns on embodiment of this invention. (Example 11) It is a side view of Example 11 which shows the function of a right ear use state and a left ear use state. It is a perspective view which shows Example 12 of the mobile telephone which concerns on embodiment of this invention. (Example 12) It is a flowchart of operation | movement of the control part in Example 12 of FIG. It is a perspective view which shows Example 13 of the mobile telephone which concerns on embodiment of this invention. (Example 13) It is a perspective view which shows Example 14 of the mobile telephone which concerns on embodiment of this invention. (Example 14) It is a system configuration | structure figure of Example 15 which concerns on embodiment of this invention. (Example 15) It is a system configuration | structure figure of Example 16 which concerns on embodiment of this invention. (Example 16) FIG. 20 is a block diagram of Example 16. FIG. 20 is a block diagram of Example 17. (Example 17) It is a flowchart of operation | movement of the control part of the transmission / reception unit in Example 17 of FIG. It is a flowchart of operation | movement of the control part of the transmission / reception unit in Example 18. FIG. (Example 18) It is a system configuration | structure figure of Example 19 which concerns on embodiment of this invention. (Example 19) It is a system configuration | structure figure of Example 20 which concerns on embodiment of this invention. (Example 20) It is a principal part side view of Example 21 which concerns on embodiment of this invention. (Example 21) It is a top view of Example 22 according to an embodiment of the present invention. (Example 22) It is a block diagram of Example 23 which concerns on embodiment of this invention. (Example 23) It is a system configuration | structure figure of Example 24 which concerns on embodiment of this invention. (Example 24) It is a block diagram of Example 25 which concerns on embodiment of this invention. (Example 25) FIG. 22 is a sectional view of the main parts of Example 25. It is a perspective view which shows the modification of Example 10 in FIG. It is a perspective view of Example 26 which concerns on embodiment of this invention. (Example 26) It is a block diagram of Example 26 of FIG. It is a flowchart regarding operation | movement of the control part in Example 26 of FIG. 42, and is shown as the detail of step S42 using FIG. It is the perspective view and sectional drawing of Example 28 which concern on embodiment of this invention. (Example 28) FIG. 38 is a cross-sectional view showing a first modification and a second modification of Example 28. FIG. 38 is a cross-sectional view of a third modification and a fourth modification of Example 28. It is a perspective view which shows Example 29 which concerns on embodiment of this invention, and its modification. (Example 29) It is the perspective view and sectional drawing of Example 30 which concern on embodiment of this invention. (Example 30) It is the longitudinal cross-sectional view and transverse cross section of Example 31 which concern on embodiment of this invention. (Example 31) FIG. 32 is a cross-sectional view showing a first modification and a second modification of Example 31. It is a perspective view of Example 32 which concerns on embodiment of this invention comprised as a piezoelectric bimorph element suitable for using for a mobile telephone. (Example 32) It is a perspective view of Example 33 which concerns on embodiment of this invention, and its modification. (Example 33). It is an external appearance perspective view of Example 33 and its modification. It is a see-through | perspective perspective view of Example 34 which concerns on embodiment of this invention. (Example 34) It is a see-through | perspective perspective view regarding Example 35 which concerns on embodiment of this invention. (Example 35) It is a see-through | perspective perspective view regarding Example 36 which concerns on embodiment of this invention. (Example 36) It is a see-through | perspective perspective view regarding Example 37 which concerns on embodiment of this invention. (Example 37) It is a sectional block diagram about Example 38 concerning an embodiment of the invention. (Example 38) FIG. 40 is a rear perspective view and a sectional view showing a state of cartilage conduction vibration source fixation to a mobile phone in Example 38. It is a flowchart of operation | movement of the control part 3439 in Example 38 of FIG. It is sectional drawing of Example 39 which concerns on embodiment of this invention, and its various modifications. (Example 39) It is sectional drawing and principal part see-through | perspective perspective view of Example 40 which concerns on embodiment of this invention, and its various modifications. (Example 40) It is sectional drawing of Example 41 which concerns on embodiment of this invention. (Example 41) 42 is a cross-sectional view of various modifications of Example 41. FIG. It is sectional drawing regarding Example 42 which concerns on embodiment of this invention. (Example 42) It is sectional drawing regarding Example 43 which concerns on embodiment of this invention. (Example 43) It is sectional drawing regarding Example 44 which concerns on embodiment of this invention. (Example 44) It is sectional drawing regarding Example 45 which concerns on embodiment of this invention. (Example 45) It is the perspective view and sectional drawing regarding Example 46 which concern on embodiment of this invention. (Example 46) It is the perspective view and sectional drawing regarding Example 47 which concern on embodiment of this invention. (Example 47) It is the perspective view and sectional drawing regarding the modification of Example 46 which concerns on embodiment of this invention. It is the perspective view and sectional drawing regarding Example 48 which concern on embodiment of this invention. (Example 48) FIG. 42 is an enlarged cross-sectional view of a main part of Example 48 and its modification. It is the perspective view and sectional drawing regarding Example 49 which concerns on embodiment of this invention, and its modification. (Example 49) It is the block diagram which mixed the partial cross section regarding Example 50 which concerns on embodiment of this invention. (Example 50) It is the block diagram which mixed the partial perspective view regarding Example 51 which concerns on embodiment of this invention. (Example 51) It is sectional drawing and the internal block diagram regarding Example 52 which concerns on embodiment of this invention. (Example 52) FIG. 78 is a perspective view and a cross-sectional view related to Example 52 in FIG. 77. It is a graph which shows an example of the actual measurement data of the mobile telephone comprised based on Example 46 of FIG. It is the side view and sectional drawing of an ear | edge, Comprising: The detail of an ear | edge structure and the relationship with the mobile telephone of this invention are shown. It is a block diagram of Example 53 concerning an embodiment of the invention. (Example 53) It is a block diagram of Example 54 concerning an embodiment of the invention. (Example 54) It is the perspective view and sectional drawing of Example 55 which concerns on embodiment of this invention. (Example 54) It is a block diagram of Example 55 of FIG. FIG. 84 is a side view for explaining the distribution of vibration energy in the mobile phone in Example 55 of FIG. 83. It is the perspective view and sectional drawing of Example 56 which concern on embodiment of this invention. (Example 56) It is a block diagram of Example 57 concerning an embodiment of the invention. (Example 57) It is the perspective view and sectional drawing of Example 58 which concern on embodiment of this invention. (Example 58) It is the perspective view and sectional drawing of Example 59 which concerns on embodiment of this invention. (Example 59) It is the perspective view and sectional drawing of Example 60 which concern on embodiment of this invention. (Example 60) It is the perspective view and sectional drawing of Example 61 which concern on embodiment of this invention. (Example 61) It is the perspective view and side view of Example 62 which concern on embodiment of this invention. (Example 62) FIG. 94 is a block diagram of an embodiment 62 in FIG. 93. FIG. 93 is a side cross-sectional view of the cordless handset according to the embodiment 62 of FIG. 92 and its modification. It is sectional drawing of Example 63 which concerns on embodiment of this invention. (Example 63) It is the perspective view, sectional drawing, and top view of Example 64 which concerns on embodiment of this invention. (Example 64) It is the perspective view, sectional drawing, and top view of Example 65 which concerns on embodiment of this invention. (Example 65) It is the perspective view, sectional drawing, and top view of Example 66 which concerns on embodiment of this invention. Example 66 It is the perspective view and sectional drawing of Example 67 which concern on embodiment of this invention. (Example 67) It is sectional drawing regarding Example 68 which concerns on embodiment of this invention. (Example 68) It is a system configuration | structure figure and usage explanatory drawing of Example 69 which concerns on embodiment of this invention. (Example 69) FIG. 70 is a block diagram of Example 69. It is a perspective view of Example 70 which concerns on embodiment of this invention. (Example 70) FIG. 66 is a block diagram of Example 70. It is the perspective view and sectional drawing of Example 71 which concern on embodiment of this invention. (Example 71) FIG. 66 is a block diagram of Example 71. It is a block diagram regarding Example 72 according to an embodiment of the present invention. (Example 72) 66 is a timing chart of power feeding control to a charge pump circuit in Example 72. 42 is a flowchart of operation of an application processor in Example 72. It is a perspective view regarding Example 73 which concerns on embodiment of this invention. (Example 73) FIG. 66 is a perspective view showing various videophone modes in Example 73. 42 is a flowchart showing a videophone process in Example 73. It is a flowchart which shows the detail of step S376 of FIG. It is a block diagram regarding Example 74 which concerns on embodiment of this invention. (Example 74) It is a block diagram regarding Example 75 which concerns on embodiment of this invention. (Example 75) It is a block diagram regarding Example 76 according to an embodiment of the present invention. (Example 76) It is a block diagram regarding Example 77 according to an embodiment of the present invention. (Example 77) It is sectional drawing of the front and side regarding Example 78 which concerns on embodiment of this invention. (Example 78) It is sectional drawing of the front and side regarding Example 79 which concerns on embodiment of this invention. (Example 79) It is sectional drawing of the front and side regarding Example 80 which concerns on embodiment of this invention. (Example 80) It is sectional drawing of the side surface regarding Example 81 which concerns on embodiment of this invention, and its 1st modification and 2nd modification. (Example 81) It is a block diagram regarding Example 82 according to an embodiment of the present invention. (Example 82) It is a flowchart of the application processor in Example 82 of FIG. It is a perspective view regarding Example 83 which concerns on embodiment of this invention. (Example 83) It is a perspective view which shows the modification of Example 83 of FIG.

  FIG. 1 is a perspective view showing Example 1 of the mobile phone according to the embodiment of the present invention. In FIG. 1, a cellular phone 1 includes an upper part 7 having a display unit 5 and the like, and a lower part 11 having an operation unit 9 such as a numeric keypad and a transmission unit 23 such as a microphone that plays a sound generated from the operator's mouth. The upper part 7 is configured to be foldable on the lower part 11 by the hinge part 3. The upper part 7 is provided with a receiving part 13 such as an earphone for transmitting voice to the ear of the operator, and constitutes a telephone function part together with the transmitting part 23 of the lower part 11. In addition, the upper portion 7 can capture the face of the operator who is looking at the display unit 5 when the mobile phone 1 is used as a video phone, and can also be used for self-portrait inner video camera. 17 is arranged. Further, the upper portion 7 has a pair of infrared light emitting units 19 and 20 constituting a proximity sensor for detecting that the mobile phone 1 is in contact with the ear for a call and infrared reflected light from the ear. Is provided with a common infrared proximity sensor 21 for receiving light. Although not shown in FIG. 1, a rear camera is provided on the rear surface of the upper portion 7, and a subject that is on the rear surface side of the mobile phone 1 and is monitored by the display unit 5 can be photographed.

  The upper part 7 is further provided with a right ear cartilage conduction vibration part 24 and a left ear cartilage conduction vibration part 26 made of a piezoelectric bimorph element or the like for contact with the tragus, at the upper corner on the inner side (side facing the ear). ing. The right ear cartilage conduction vibration portion 24 and the left ear cartilage conduction vibration portion 26 are configured to protrude from the outer wall of the mobile phone so as not to harm the design, but are effective by being provided at the corner of the outer wall of the mobile phone. In contact with the tragus. Accordingly, it is possible to receive the voice by the bone conduction from the tragus cartilage together with the voice reception from the receiver 13. In addition, as disclosed in the above-mentioned Patent Document 2, the tragus is the most audible sensation in the structure of the ear cartilage such as the otic mastoid process, the outer cartilage surface of the outer ear mouth, the tragus and the raised part, and is pressed. It is known that the rise of the bass when the pressure is increased is greater than other positions. Since this knowledge is described in detail in Patent Document 2, it can be referred to.

  When the cellular phone 1 is applied to the right ear, the cellular phone 1 slightly rotates clockwise in FIG. Then, by providing the right ear cartilage conduction vibration portion 24 at the inclined lower side corner of the upper end of the mobile phone ear side, the right ear cartilage conduction vibration portion 24 can be naturally formed without protruding the vibration portion from the outer wall of the mobile phone. Can contact the tragus of the right ear. This state is a posture close to a normal call state, and there is no sense of incongruity for the caller himself / herself. Since the earpiece 13 is in the vicinity of the right ear cartilage conduction vibration unit 24, both voice information via the tragus cartilage and voice information via the external auditory canal are transmitted to the ear. At this time, since the same audio information is transmitted by different sound generators and paths, phase adjustment between the two is performed so that they do not cancel each other.

  On the other hand, when the mobile phone 1 is put on the left ear, the mobile phone 1 is slightly rotated counterclockwise in FIG. Similarly to the case of the right ear, the left ear cartilage conduction vibration unit 26 is provided at the lower inclined corner of the upper end of the mobile phone ear side, and the left ear cartilage conduction vibration unit 26 is naturally left. Can contact the tragus of the ear. This state is a posture close to a normal call state, and the receiving unit 13 is in the vicinity of the left ear cartilage conduction vibration unit 26 so that both voice information via the tragus cartilage and voice information via the external auditory canal are transmitted to the ear. Therefore, the phase adjustment between the two is the same as in the case of the right ear.

  In addition, since the pair of infrared light emitting units 19 and 20 in the proximity sensor emit light alternately in a time-division manner, the common infrared light proximity sensor 21 receives reflected light by infrared light from any light emitting unit. Whether the light is received or not can be identified, so that it can be determined which of the right ear cartilage conduction vibration unit 24 and the left ear cartilage conduction vibration unit 26 is in contact with the tragus. As a result, it is possible to determine which ear the mobile phone 1 is used, and it is possible to vibrate the vibration part on which the tragus is in contact and turn off the other. However, since there are variations in how the mobile phone 1 is applied to the ear and individual differences in the shape of the ear, the acceleration sensor is incorporated in the first embodiment as will be described later, and the gravitational acceleration detected by this acceleration sensor. Thus, the mobile phone 1 is detected to be tilted to vibrate, and the vibration portion on the lower corner of the tilt is vibrated and the other is turned off. The use of the right ear and the use of the left ear will be described again with reference to the drawings corresponding to each use state.

  Further, the upper portion 7 is arranged outside (back side not hitting the ear) so as to pick up environmental noise, and is provided with a conduction preventing means for vibration of the right ear cartilage conduction vibration portion 24 and the left ear cartilage conduction vibration portion 26. The environmental noise microphone 38 is provided. The environmental noise microphone 38 further picks up sound produced from the operator's mouth. The environmental noise picked up by the environmental noise microphone 38 and the operator's own voice are inverted in waveform and mixed by the right ear cartilage conduction vibration unit 24 and the left ear cartilage conduction vibration unit 26, and voice information via the receiver unit 13. Cancels environmental noise and the operator's own voice to make it easier to hear the voice information of the other party. Details of this function will be described later.

  FIG. 2 is a side view of the mobile phone 1 showing the functions of the right-ear cartilage conduction vibration unit 24 and the left-ear cartilage conduction vibration unit 26, and FIG. 2 (A) shows the right hand with the mobile phone 1 in the right hand. The state where the ear 28 is applied is shown. On the other hand, FIG. 2B shows a state in which the mobile phone 1 is held in the left hand and is placed on the left ear 30. 2A is a view seen from the right side of the face, and FIG. 2B is a view seen from the left side of the face, so the mobile phone 1 is on the back side (the back side in FIG. 1). Is visible. In order to illustrate the relationship between the mobile phone 1 and the right ear 28 and the left ear 30, the mobile phone 1 is indicated by a one-dot chain line.

  As shown in FIG. 2A, when the mobile phone 1 is applied to the right ear 28, the mobile phone 1 is slightly inclined in the counterclockwise direction (the relationship between FIG. 1 and the front and back) in FIG. Become. Since the right ear cartilage conduction vibration part 24 is provided at the lower inclined corner of the upper end of the mobile phone ear side, it can be naturally brought into contact with the tragus 32 of the right ear 28. As already described, this state is a posture close to a normal call state, and there is no sense of incongruity for the caller himself / herself. On the other hand, as shown in FIG. 2B, when the mobile phone 1 is applied to the left ear 30, the mobile phone 1 is slightly inclined clockwise (relationship between FIG. 1 and the front and back) in FIG. It becomes. Since the left ear cartilage conduction vibration part 26 is provided at the inclined lower side corner of the upper end of the mobile phone ear side, it can be naturally brought into contact with the tragus 34 of the left ear 30. Even in this state, as in the case of the right ear 28, the posture is close to that of a normal call state, and there is no sense of incongruity between the caller and the side.

  FIG. 3 is a block diagram of the first embodiment. The same parts as those in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted unless necessary. The mobile phone 1 is controlled by a control unit 39 that operates according to a program stored in the storage unit 37. The storage unit 37 can also temporarily store data necessary for the control of the control unit 39 and also store various measurement data and images. Display on the display unit 5 is performed based on display data held by the display driver 41 under the control of the control unit 39. The display unit 5 has a display backlight 43, and the control unit 39 adjusts the brightness based on the ambient brightness.

  The telephone function unit 45 including the reception unit 13 and the transmission unit 23 can be connected to a wireless telephone line by a telephone communication unit 47 under the control of the control unit 39. The speaker 51 performs ringtones and various guidance under the control of the control unit 39 and outputs the other party's voice during a videophone call. The audio output of the speaker 51 is not output from the right ear cartilage conduction vibration unit 24 and the left ear cartilage conduction vibration unit 26. This is because there is no possibility that the cartilage conduction vibration part is applied to the ear during a videophone call. Further, the image processing unit 53 processes images captured by the videophone inner camera 17 and the rear main camera 55 under the control of the control unit 39, and inputs images of these processing results to the storage unit 37.

  As described above, the pair of infrared light emitting units 19 and 20 in the proximity sensor emit light alternately in a time-sharing manner based on the control of the control unit 39. Therefore, the reflected infrared light input to the control unit 39 by the common infrared light proximity sensor 21 can be reflected by the infrared light from any light emitting unit. When reflected light is detected from both of the infrared light emitting units 19 and 20, the control unit 39 compares these with each other, and either the right ear cartilage conduction vibration unit 24 or the left ear cartilage conduction vibration unit 26 Judge whether it hits the tragus. Furthermore, the acceleration sensor 49 detects the direction of the detected gravitational acceleration. Based on this detection signal, the control unit 39 determines whether the mobile phone 1 is tilted in FIG. 2 (A) or FIG. 2 (B), and as described with reference to FIG. One vibration part is vibrated and the other is turned off.

  The cellular phone 1 further includes a phase adjustment mixer unit 36 for performing phase adjustment on the audio information from the control unit 39 and transmitting the audio information to the right ear cartilage conduction vibration unit 24 and the left ear cartilage conduction vibration unit 26. More specifically, the phase adjusting mixer unit 36 is generated from the voice receiving unit 13 and transmitted from the ear canal via the eardrum and the right ear cartilage conduction vibration unit 24 or the left ear cartilage conduction vibration unit 26. In order to prevent the same audio information transmitted via the tragus cartilage from canceling each other, the audio information transmitted from the control unit 39 to the receiving unit 13 is used as a reference to adjust the phase of the audio information from the control unit 39, The signal is transmitted to the right ear cartilage conduction vibration unit 24 and the left ear cartilage conduction vibration unit 26. This phase adjustment is a relative adjustment between the earpiece 13 and the right-ear cartilage conduction vibration unit 24 and the left-ear cartilage conduction vibration unit 26. Therefore, the controller 39 controls the right ear cartilage conduction vibration unit 24 and the left ear. You may comprise so that the phase of the audio | voice information transmitted to the receiving part 13 from the control part 39 may be adjusted on the basis of the audio | voice information transmitted to the cartilage conduction vibration part 26 for ears. In this case, the audio information to the speaker 51 is also adjusted in the same phase as the audio information to the receiver 13.

  The phase adjustment mixer unit 36 does not cancel the audio information from the receiver 13 and the same audio information from the right ear cartilage conduction vibration unit 24 or the left ear cartilage conduction vibration unit 26 from each other. In addition to the first function, the second function is provided in cooperation with the environmental noise microphone 38. In the second function, the environmental noise picked up by the environmental noise microphone 38 and the operator's own voice are inverted in waveform by the phase adjustment mixer unit 36, and then the right ear cartilage conduction vibration unit 24 or the left ear cartilage conduction vibration unit. 26, the environmental noise and the operator's own voice included in the voice information via the receiver 13 are canceled to make it easier to hear the voice information of the other party. At this time, the environmental noise and the operator's own voice regardless of the transmission route of the voice information from the receiving unit 13 and the voice information from the right ear cartilage conduction vibration unit 24 or the left ear cartilage conduction vibration unit 26. Is effectively mixed with the phase adjustment based on the first function.

  FIG. 4 is a flowchart of the operation of the control unit 39 in the first embodiment of FIG. The flow of FIG. 4 mainly illustrates the functions of the right ear cartilage conduction vibration unit 24 and the left ear cartilage conduction vibration unit 26, and shows the extracted operations centering on related functions. There are operations of the control unit 39 that are not shown in the flow of FIG. The flow of FIG. 4 starts when the main power supply is turned on by the operation unit 9 of the mobile phone 1, and at step S <b> 2, initial startup and function check of each unit are performed and screen display on the display unit 5 is started. Next, in step S4, the functions of the right ear cartilage conduction vibration unit 24 and the left ear cartilage conduction vibration unit 26 are turned off, and the process proceeds to step S6. In step S6, it is checked whether there is an operation that does not use radio waves such as mail operation, Internet operation, other settings, and downloaded games (hereinafter collectively referred to as “non-call operation”). If there are these operations, the process proceeds to step S8 to execute non-call processing, and the process proceeds to step S10. It should be noted that the non-calling operation does not assume a function that applies the functions of the receiver 13, the right ear cartilage conduction vibration unit 24, and the left ear cartilage conduction vibration unit 26 in the upper part 7 of the mobile phone 1 to the ear. On the other hand, when a non-call operation is not detected in step S6, the process directly proceeds to step S10.

  In step S10, it is checked whether or not a call using mobile radio waves is being received. If the call is not being received, the process proceeds to step S12, and it is checked whether or not there is a response from the other party to the call from the mobile phone 1. If a response is detected, the process proceeds to step S14. On the other hand, when it is detected in step S10 that a call using mobile radio waves is being received, the process proceeds to step S16, whether the mobile phone 1 is open, that is, the upper portion 7 is folded over the lower portion 11. It is checked from the state whether it is in the open state as shown in FIG. If it is not detected that the mobile phone 1 is open, the process returns to step S10, and thereafter, steps S10 and S16 are repeated to wait for the mobile phone 1 to be opened. If the incoming call is completed without the cellular phone 1 being opened by this repetition, the flow moves from step S10 to step S12. On the other hand, when it is detected in step S16 that the mobile phone 1 is opened, the process proceeds to step S14. In step S14, the transmitter 23 and receiver 13 are turned on, and the process proceeds to step S18. In step S18, it is checked whether or not the call is a videophone. If it is not a videophone, the process proceeds to step S20, and whether or not the call is disconnected at this point is confirmed.

  In step S22, it is checked whether or not the infrared light proximity sensor 21 detects the contact of the ear. If the contact is detected, the process proceeds to step S24. On the other hand, when the infrared light proximity sensor 21 does not detect the contact of the ear in step S22, the process returns to step S14, and thereafter, steps S14 and S18 to 22 are repeated to wait for the detection of the proximity sensor in step S22. In step S24, based on the detection signal of the acceleration sensor 49, it is checked whether or not there is a right-ear talking state tilt as shown in FIG. If applicable, the process proceeds to step S26, the right ear cartilage conduction vibration unit 24 is turned on, and the process proceeds to step S28. On the other hand, if it is not detected in step S24 that the right-ear call state tilt has occurred, the detection signal of the acceleration sensor 49 has detected the left-ear call state tilt as shown in FIG. In step S30, the left ear cartilage conduction vibration unit 26 is turned on, and the process proceeds to step S28.

  In the description of the flow of FIG. 4, the process proceeds to step S24 regardless of whether the infrared reflected light detected by the infrared light proximity sensor 21 is generated by the infrared light emitting unit 19 or 20 and in step S24, the acceleration sensor is detected. It has been described that it is detected whether or not the right-ear communication state inclination is based on the 49 signal. However, since the infrared light proximity sensor 21 can also detect whether or not the right-ear call state is inclined, the infrared light at the light emission timing of the infrared light emitting unit 19 is replaced with the signal of the acceleration sensor 49 in step S24. If the output of the proximity sensor 21 is larger than that at the light emission timing of the infrared light emitting unit 20, it may be determined that the right-ear call state is inclined. In step S24, whether or not the right ear call state inclination is determined by combining the signal of the acceleration sensor 49 and the output comparison result of the infrared light proximity sensor 21 at the light emission timing of the infrared light emitting units 19 and 20. You may comprise so that judgment may be carried out.

  In step S28, it is checked whether or not the call state is cut off. If the call is not cut off, the process returns to step S24, and step S24 to step S30 are repeated until a call cut is detected in step S28. This corresponds to the change of the mobile phone 1 between the right-ear call state and the left-ear call state during a call. On the other hand, when a call disconnection is detected in step S28, the process proceeds to step S32, and the right-ear cartilage conduction vibration unit 24 or the left-ear cartilage conduction vibration unit 26, the reception unit 13 and the transmission unit 23 are turned off. Then, the process proceeds to step S34. On the other hand, if no call origination response is detected in step S12, the process immediately proceeds to step S34. If it is detected in step S18 that the videophone is used, the process proceeds to videophone processing in step S36. In the videophone processing, the video camera inner camera 17 captures the face of the user, the speaker 51 outputs the voice of the other party, the sensitivity of the transmitter 23 is switched, the display unit 5 displays the other party's face. When such a videophone process is completed, the process proceeds to step S38, the speaker 51, the receiving unit 13 and the transmitting unit 23 are turned off, and the process proceeds to step S34. When the call disconnection is detected in step S20, the process proceeds to step S38. At this time, since the speaker 51 is not originally turned on, the reception unit 13 and the transmission unit 23 are turned off, and the process proceeds to step S34.

  In step S34, it is checked whether or not the main power is turned off. If there is an off operation, the flow ends. On the other hand, when the main power-off operation is not detected in step S34, the flow returns to step S6, and thereafter steps S6 to S38 are repeated. As described above, the right ear cartilage conduction vibration unit 24 or the left ear cartilage conduction vibration unit 26 can be used even when the mobile phone 1 is not open, when the mobile phone 1 is not in a call state, or in a call state. It is not turned on when it is a videophone call and when the mobile phone 1 is not placed on the ear even in a normal call state. However, when the right ear cartilage conduction vibration unit 24 or the left ear cartilage conduction vibration unit 26 is turned on once, the on / off switching between the right ear cartilage conduction vibration unit 24 or the left ear cartilage conduction vibration unit 26 is performed. This will not be turned off unless a call disconnect is detected.

  FIG. 5 is a perspective view showing Example 2 of the mobile phone according to the embodiment of the present invention. Since there are many common points in the structure of the second embodiment, the corresponding parts are denoted by the same reference numerals as those of the first embodiment and description thereof is omitted. The mobile phone 101 according to the second embodiment is an integrated type that does not have a movable part, and is not divided into an upper part and a lower part. Therefore, the “upper part” in this case does not mean the separated upper part, but means the upper part of the integrated structure.

  In the first embodiment, when the mobile phone 1 is folded, the right ear cartilage conduction vibration portion 24 and the left ear cartilage conduction vibration portion 26 are sandwiched and stored between the upper portion 7 and the lower portion 11. On the other hand, in the second embodiment, the right ear cartilage conduction vibration unit 24 and the left ear cartilage conduction vibration unit 26 are always exposed on the outer wall of the mobile phone 101. Also in the second embodiment, the internal structure of FIG. 3 and the flowchart of FIG. 4 can be basically used. However, in connection with the difference in the structure described above, step S16 in the flowchart of FIG. 4 is omitted, and when it is confirmed in step S10 that a call is being received, the process directly proceeds to step S14.

  FIG. 6 is a perspective view showing Example 3 of the mobile phone according to the embodiment of the present invention. Since there are many common points in the structure of the third embodiment, the corresponding parts are denoted by the same reference numerals as those of the first embodiment and the description thereof is omitted. The mobile phone 201 according to the third embodiment has a structure in which an upper part 107 can slide relative to a lower part 111. In the structure of the third embodiment, when the upper portion 107 is overlapped with the lower portion 111, there is no vertical relationship, but the “upper portion” in the third embodiment means a portion that comes up when the mobile phone 201 is extended. To do.

  In the third embodiment, as shown in FIG. 6, the full function can be used with the upper portion 107 extended and the operation portion 9 exposed, and the upper portion 107 is overlapped with the lower portion 111 so that the operation portion 9 is hidden. But you can use basic functions such as incoming calls and calls. Also in the third embodiment, the right ear cartilage conduction vibration unit 24 and the left ear cartilage conduction vibration unit 26 are both in the state in which the cellular phone 201 is extended as shown in FIG. The shape is always exposed on the outer wall of the mobile phone 201. Also in the third embodiment, the internal structure of FIG. 3 and the flowchart of FIG. 4 can basically be used. However, as described above, in the third embodiment, it is possible to make a call even when the upper portion 107 is overlapped with the lower portion 111. Therefore, similarly to the second embodiment, step S16 in the flowchart of FIG. 4 is omitted, and the call is made in step S10. When it is confirmed that the incoming call is being received, the process directly proceeds to step S14.

  The implementation of the various features of the present invention is not limited to the above-described examples, but can be implemented in other embodiments. For example, in the above embodiment, the right-ear cartilage conduction vibration unit 24 and the left-ear cartilage conduction vibration unit 26 are provided in order to cope with both the right ear use and the left ear use due to change of hand and change of user. However, in the case of cartilage conduction, if it is assumed that only the right ear or only the left ear is used, one cartilage conduction vibration unit may be provided.

  The right-ear cartilage conduction vibration unit 24 and the left-ear cartilage conduction vibration unit 26 are originally provided on the premise that they come into contact with the tragus of the right ear and the left ear, respectively, but are disclosed in Patent Document 2. As described above, since cartilage conduction is possible even in an otic cartilage configuration other than the tragus, such as the otic mastoid process and the posterior cartilage surface of the outer ear mouth, both the cartilage conduction vibration part 24 for the right ear and the cartilage conduction vibration part 26 for the left ear are both. For example, when using the right ear, an appropriate portion of the right ear cartilage may be pressed at the same time. In this sense, the two cartilage conduction vibration units 24 and 26 are not necessarily limited to the right ear and the left ear. In this case, instead of turning on only one of the two cartilage conduction vibration parts 24 and 26 as in the embodiment, both are turned on simultaneously.

  Furthermore, in the above embodiment, the earpiece 13 and the right ear cartilage conduction vibration unit 24 or the left ear cartilage conduction vibration unit 26 are turned on simultaneously. When the cartilage conduction vibration unit 26 is turned on, the receiver 13 may be turned off. In this case, it is not necessary to adjust the phase of the audio information.

  FIG. 7 is a perspective view showing Example 4 of the mobile phone according to the embodiment of the present invention. Since there are many common points in the structure of the fourth embodiment, the corresponding parts are denoted by the same reference numerals as those of the first embodiment, and the description thereof is omitted. The mobile phone 301 according to the fourth embodiment is not a folding method separated into an upper part and a lower part as in the second example, but is an integrated type having no movable part. Moreover, it is comprised as what is called a smart phone which has the big screen display part 205 provided with the GUI (graphical user interface) function. Also in the fourth embodiment, the “upper part” does not mean the separated upper part, but means the upper part of the integrated structure. In the fourth embodiment, an operation unit 209 such as a numeric keypad is displayed on the large screen display unit 205, and a GUI operation is performed in response to a finger touch or slide on the large screen display unit 205.

  The cartilage conduction vibration function in the fourth embodiment is performed by a cartilage conduction vibration unit including a cartilage conduction vibration source 225 including a piezoelectric bimorph element and the vibration conductor 227. The cartilage conduction vibration source 225 is disposed in contact with the lower portion of the vibration conductor 227 and transmits the vibration to the vibration conductor 227. The cartilage conduction vibration source 225 is configured so as to protrude from the outer wall of the mobile phone (front side in FIG. 7) in the same manner as in the first to third embodiments so as not to harm the design. Is transmitted to the side, causing both ends 224 and 226 to vibrate. Since both ends 224 and 226 of the vibration conductor 227 are located at the inner corners of the upper portion 7 of the mobile phone 301 that comes into contact with the tragus, the ears can be effectively prevented from protruding from the outer wall of the mobile phone in the same manner as in the first to third embodiments. Contact the bead. As described above, the right end portion 224 and the left end portion 226 of the vibration conductor 227 respectively constitute the right ear cartilage conduction vibration portion 24 and the left ear cartilage conduction vibration portion 26 in the first embodiment. Since the vibration conductor 227 vibrates not only at the right end 224 and the left end 226 but as a whole, in the fourth embodiment, any part of the inner upper end side of the mobile phone 301 is brought into contact with the ear cartilage. Audio information can be transmitted. In such a structure of the cartilage conduction vibration unit, the vibration conductor 227 can guide the vibration of the cartilage conduction vibration source 225 to a desired position, and the cartilage conduction vibration source 225 itself does not need to be disposed on the outer wall of the mobile phone 301. This is useful for mounting a cartilage conduction vibration unit on a mobile phone having a high degree of freedom in layout and having no space.

  In the fourth embodiment, two functions are further added. However, these functions are not specific to the fourth embodiment, and can be applied to the first to third embodiments. One of the additional functions is to prevent malfunction of the cartilage conduction vibration unit. In any of the first to fourth embodiments, the infrared light emitting units 19 and 20 and the infrared light proximity sensor 21 detect that the mobile phone has been applied to the ear. For example, in the first embodiment, the mobile phone 1 Since the proximity sensor is detected when placed on a desk or the like with the inside facing down, there is a possibility that the mobile phone 1 is mistakenly recognized as being placed on the ear and the process proceeds from step S22 in FIG. 4 to step S24. And since it does not correspond to the right-ear call state inclination detected in step S24, the flow may proceed to step S30, and the left-ear cartilage conduction vibration unit 26 may be erroneously turned on. Since the vibration energy of the cartilage conduction vibration part is relatively large, if such a malfunction occurs, vibration noise may occur between the desk and the desk. In the fourth embodiment, in order to prevent this, the horizontal stationary state is detected by the acceleration sensor 49, and if applicable, the vibration of the cartilage conduction vibration source 225 is prohibited. Details of this point will be described later.

  Next, a second additional function in the fourth embodiment will be described. In each embodiment of the present invention, the right ear cartilage conduction vibration portion 24 or the left ear cartilage conduction vibration portion 26 (in the fourth embodiment, the right end portion 224 or the left end portion 226 of the vibration conductor 227) is used as the right ear or the left ear. The voice information is transmitted by contacting the tragus, but by closing the ear hole with the tragus by increasing the contact pressure, the ear plug bone conduction effect is produced, and the voice information can be transmitted with a louder sound. Furthermore, since the environmental noise is blocked by closing the ear hole with the tragus, the use in such a state realizes a reception situation that can be obtained at once, reducing unnecessary environmental noise and increasing necessary voice information, for example, station It is suitable for a telephone call under noise. When the earplug bone conduction effect is occurring, the user's own voice due to bone conduction from the vocal cords becomes louder and the sense of incongruity between the left and right auditory senses is lost. In Example 4, in order to alleviate the uncomfortable feeling of one's own voice during the generation of the ear plug bone conduction effect, the phase of the information of one's own voice picked up from the transmitter 23 is reversed to the cartilage conduction vibration source 225. It tells you to cancel your voice. Details of this point will also be described later.

  FIG. 8 is a block diagram of the fourth embodiment, and the same components as those in FIG. In addition, since there are many parts in common with the first to third embodiments, the same numbers are assigned to the corresponding parts. The description of the same or common parts is omitted unless particularly necessary. In the fourth embodiment, the telephone function unit 45 is illustrated in some detail, but the configuration is the same as in the first to third embodiments. Specifically, the reception processing unit 212 and the earphone 213 in FIG. 8 correspond to the reception unit 13 in FIG. 3, and the transmission processing unit 222 and the microphone 223 in FIG. 8 correspond to the transmission unit 23 in FIG. On the other hand, the cartilage conduction vibration source 225 and the vibration conductor 227 of FIG. 7 are collectively shown as a cartilage conduction vibration unit 228 in FIG. The transmission processing unit 222 transmits a part of the operator's voice picked up from the microphone 223 to the reception processing unit 212 as a side tone, and the reception processing unit 212 receives the caller's voice from the telephone communication unit 47 in the operator's own voice. By superimposing these side tones and outputting them to the earphone 213, the balance between the bone conduction and the air conduction in the state where the mobile phone 301 is placed on the ear is brought close to a natural state.

  The transmission processing unit 222 further outputs a part of the operator's voice picked up from the microphone 223 to the sound quality adjustment unit 238. The sound quality adjustment unit 238 outputs the sound quality of the voice to be transmitted to the cochlea from the cartilage conduction vibration unit 228 to a sound quality that approximates the operator's own voice transmitted from the vocal cords to the cochlea by internal conduction when the earplug bone conduction effect occurs. Adjust and make both cancellations effective. Then, the waveform inverting unit 240 inverts the waveform of the voice of which the sound quality has been adjusted in this way and outputs it to the phase adjustment mixer unit 236. When the pressure detected by the pressure sensor 242 is equal to or greater than the predetermined value and the earphone is covered with the tragus by the mobile phone 301, the phase adjustment mixer unit 236 corresponds to the waveform reversing unit 240 according to an instruction from the control unit 239. The cartilage conduction vibration unit 228 is driven by mixing the output from. As a result, excessive one's own voice during the occurrence of the ear plug bone conduction effect is canceled, and the uncomfortable feeling is alleviated. At this time, the degree of cancellation is adjusted so that the voice corresponding to the side tone is left without being canceled. On the other hand, if the pressure detected by the pressure sensor 242 is lower than a predetermined value, the phase adjustment mixer unit 236 is a control unit because the ear hole is not blocked by the tragus and the effect of the ear plug bone conduction is not generated. Based on the instruction of 239, mixing of the voice waveform inversion output from the waveform inversion unit 240 is not performed. In FIG. 8, the positions of the sound quality adjusting unit 238 and the waveform reversing unit 240 may be reversed. Furthermore, the sound quality adjustment unit 238 and the waveform inversion unit 240 may be integrated as functions within the phase adjustment mixer unit 236.

  FIG. 9 is a main part conceptual block diagram showing a state in which the mobile phone 301 is applied to the right tragus in Example 4, and explains the cancellation of one's own voice during the generation of the ear plug bone conduction effect. is there. FIG. 9 also shows a specific example of the pressure sensor 242, which is configured on the assumption that the cartilage conduction vibration unit 225 is a piezoelectric bimorph element. In addition, the same number is attached | subjected about FIG. 7 and FIG. 8 about the same part, and description is abbreviate | omitted unless there is particular need.

  FIG. 9A shows a state in which the mobile phone 301 is applied to the tragus 32 to such an extent that the tragus 32 does not block the ear hole 232. In this state, the phase adjustment mixer unit 236 drives the cartilage conduction vibration unit 225 based on the voice information of the communication partner from the reception processing unit 212. The pressure sensor 242 monitors a signal appearing on a signal line connecting the phase adjustment mixer section 236 and the cartilage conduction vibration section 225, and the cartilage conduction vibration section (piezoelectric bimorph element) applied in response to the pressure on the vibration conductor 227. 225 is configured to detect signal changes based on distortion to 225. As described above, when the cartilage conduction vibration part 225 that transmits voice information by contacting the tragus 32 is constituted by a piezoelectric bimorph element, the piezoelectric bimorph element itself can be used as a pressure sensor for detecting the pressure on the tragus 32. Can also be used. The press sensor 242 further monitors a signal appearing on a signal line connecting the phase adjustment mixer unit 236 and the reception processing unit 212. Since the signal that appears here is not affected by the pressure on the tragus 32, it can be used as a reference signal for pressure determination.

  As described above, in FIG. 9A, the tragus 32 does not block the ear hole 232, and the pressure determined by the pressure sensor 242 is small. Based on this determination, the control unit 239 determines whether the waveform reversing unit 240 The phase adjustment mixer unit 236 is instructed not to mix the waveform inversion self-voice to the cartilage conduction vibration unit 225. On the other hand, FIG. 9B shows a state in which the mobile phone 301 presses the tragus 32 more strongly in the direction of the arrow 302, and the tragus 32 blocks the ear hole 232. And in this state, the ear plug bone conduction effect has occurred. The pressure sensor 242 determines that the ear canal 232 is blocked based on detection of an increase in pressure equal to or greater than a predetermined value. The phase adjustment mixer unit 236 is instructed to mix with the unit 225. As described above, the sense of incongruity of the voice during the generation of the ear plug effect is alleviated. On the other hand, when the pressing sensor 242 detects a decrease in the pressing force of a predetermined value or more from the state of FIG. 9B, it is determined that the ear hole 232 is not blocked as shown in FIG. 9A. Then, the mixing of the waveform inversion voice is stopped. Note that the press sensor 242 determines the state transition between FIG. 9A and FIG. 9B based on the absolute amount of press and the change direction of the press. In a silent state where both voices are absent, the pressure sensor 242 detects a pressure by directly applying a pressure monitor signal that cannot be heard by the ear to the bone conduction vibration unit 225.

  FIG. 10 is a flowchart of the operation of the control unit 239 in the fourth embodiment of FIG. Since the flow of FIG. 10 is often in common with the flow of the first embodiment in FIG. 4, the corresponding steps are denoted by the same step numbers, and the description is omitted unless necessary. FIG. 10 also mainly illustrates the functions of the cartilage conduction vibration unit 228 in order to explain the functions of the cartilage conduction vibration unit 228. Therefore, as in the case of FIG. 4, there are operations of the control unit 239 that are not shown in the flow of FIG. In FIG. 10, portions different from those in FIG. 4 are shown in bold, and therefore, these portions will be mainly described below.

  Step S42 is a summary of Step S6 and Step S8 in FIG. 4, and includes the case where the non-call processing in Step S42 includes the case of going straight to the next step without a non-call operation. The contents are the same as those in steps S6 and S8 in FIG. Step S44 is a summary of Step S10 and Step S12 in FIG. 4, and is a step for checking the presence or absence of a call state between both parties regardless of whether the call is an incoming call from the other party or a call from the other party. Although shown, the contents are the same as those in steps S6 and S8 in FIG. In the fourth embodiment, since there is no configuration for opening and closing the mobile phone 301, a step corresponding to step S16 in FIG. 4 is not included.

  Step S46 relates to the first additional function in the fourth embodiment, and checks whether or not the mobile phone 301 is left in a horizontal state apart from the handheld state for a predetermined time (for example, 0.5 seconds). When the proximity sensor is detected in step S22, if it is confirmed in step S46 that such a horizontal stationary state is not established, the process proceeds to step S48 for the first time to turn on the cartilage conduction vibration source 225. On the other hand, when the horizontal stationary state is detected in step S46, the process proceeds to step S50, the cartilage conduction vibration source 225 is turned off, and the process returns to step S14. Note that step S50 corresponds to the step S46 in which the cartilage conduction vibration source 225 is turned on in the repetition of the flow to be described later, and corresponds to when the horizontal stationary state is detected, and the cartilage conduction vibration source 225 is turned off. When the process reaches step S50, the process returns to step S14 without doing anything.

  Step S52 relates to the second additional function in the fourth embodiment, and checks whether or not the ear plug bone conduction effect is produced by closing the ear hole 232 by strongly pressing the mobile phone 301 against the tragus 32. It is. Specifically, as shown in FIG. 9, this is checked by the presence or absence and the direction of the pressure change by the pressure sensor 242 exceeding a predetermined value. When it is detected that the ear plug bone conduction effect is generated, the process proceeds to step S54, where the waveform inversion signal of own voice is added to the cartilage conduction vibration source 225, and the process proceeds to step S58. On the other hand, when it is detected in step S52 that the effect of the ear plug bone conduction does not occur, the process proceeds to step S56, and the addition of the waveform inversion signal of own voice to the cartilage conduction vibration source 225 is eliminated, and step S58 is performed. Migrate to In step S58, it is checked whether or not the call state is cut off. If the call is not cut off, the process returns to step S22, and step S22 and step S46 to step S58 are repeated until a call cut is detected in step S58. This corresponds to the occurrence and disappearance of the effect of the ear plug bone effect during a call.

  Various features of each embodiment described above are not limited to individual embodiments, and can be appropriately replaced or combined with features of other embodiments. For example, in the flowchart of the fourth embodiment in FIG. 10, there is no configuration for switching between the right ear cartilage conduction vibration unit 24 and the left ear cartilage conduction vibration unit 26 in the flowchart of the first embodiment in FIG. As the structure of the cartilage conduction vibration unit 228, the right ear cartilage conduction vibration unit 24 and the left ear cartilage conduction vibration unit as in the first embodiment are adopted, and the loop of steps S22 and S46 to S58 is repeated. In addition to the response to the occurrence and disappearance of the ear plug bone conduction effect, the response to the change of the mobile phone between the right-ear call state and the left-ear call state by the function according to steps S24 to S26 in FIG. You may comprise so that it may carry out. In addition, the horizontal stationary state check and the off function of the cartilage conduction vibration unit 228 in the fourth embodiment of FIG. 10 can be added to the first to third embodiments. Further, in the first to third embodiments, the cartilage conduction vibration unit 228 as in the fourth embodiment can be employed.

  FIG. 11 is a perspective view showing Example 5 of the mobile phone according to the embodiment of the present invention. The fifth embodiment is based on the fourth embodiment shown in FIG. 7. Since most of the structure is common, the corresponding parts are denoted by the same reference numerals and the description thereof is omitted. In addition, in order to avoid complication of illustration, the number of description omitted is also omitted from the number itself, but the function and name of the common part in the drawing are the same as in FIG. In addition, about a detailed structure, the block diagram of Example 4 in FIG. 8 and FIG. 9 is used fundamentally. The first point in which the fifth embodiment differs from the fourth embodiment is that, in the mobile phone 401, a so-called touch panel function (touching a large screen display unit 205 on which an operation unit 209 such as a numeric keypad is displayed with a finger is detected. The setting of turning off the GUI operation function by slide detection is possible, and a push / push button 461 that is effective only when the touch panel function is set to off is provided. The touch panel function can be turned off by operating the touch panel itself, and the touch panel function can be turned back on by pressing and holding the push / push button 461 for a predetermined time or longer. The push / push button 461 has a function of starting a call by pressing the first time and disconnecting the call by pressing the second time during a call (pushing both on and off). (Alternate switch function). Note that the first push of the push / push button 461 is performed when a call is made to a specific partner or when a response to an incoming call is made. In any case, a call is started.

  The second point in which the fifth embodiment differs from the fourth embodiment is that the fifth embodiment is configured to function by a combination of the mobile phone 401 and a soft cover 463 for storing the cellular phone 401. In FIG. 11, the soft cover 463 is illustrated as transparent for convenience of description of the configuration. However, the soft cover 463 is actually opaque, and the mobile phone 401 is connected as shown in FIG. The mobile phone 401 is not visible from the outside while being housed in the soft cover 463.

  The function of the push / push button 461 can also be achieved by pressing the push / push button 461 from above the soft cover 463 while the mobile phone 401 is stored in the soft cover 463. Further, the soft cover 463 is linked with the cartilage conduction vibration unit 228 having the cartilage conduction vibration source 225 and the vibration conductor 227 of the mobile phone 401, and can make a call while the mobile phone 401 is stored in the soft cover 463. It is configured as follows. This will be described below.

  The soft cover 463 is made of an elastic material whose acoustic impedance approximates that of the ear cartilage (silicone rubber, a mixture of silicone rubber and butadiene rubber, natural rubber, or a structure in which air bubbles are sealed, or a transparent packing sheet material. Vibration layer that conveys vibration from the cartilage conduction vibration source 225 when the cellular phone 401 is accommodated. The body 227 contacts the inside. Then, when the outside of the soft cover 463 is applied to the ear while the mobile phone 401 is stored, the vibration of the vibration conductor 227 is transmitted to the ear cartilage with a wide contact area through the soft cover 463. Furthermore, the sound from the outer surface of the soft cover 463 that resonates due to the vibration of the vibration conductor 227 is transmitted from the ear canal to the eardrum. As a result, the sound source information from the cartilage conduction vibration source 225 can be heard as a loud sound. Moreover, since the soft cover 463 applied to the ear closes the ear canal, it is possible to block environmental noise. Further, when the force pressing the soft cover 463 against the ear is increased, the external auditory canal is almost completely blocked, and the sound source information from the cartilage conduction vibration source 225 can be heard as a louder sound due to the ear plug bone conduction effect. Although detection is performed via the soft cover 463, in the same manner as in the fourth embodiment, based on the detection of the pressing force by the cartilage conduction vibration source 225, in the state where the ear plug bone conduction effect is generated, the transmitter 23 ( The waveform inversion signal is added to the voice signal from the microphone 223).

  In a call state in which the mobile phone 401 is housed in the soft cover 463, the vibration of the vibration conductor 227 transmitted to the soft cover 463 may be transmitted to the transmitter 23 and cause howling. As a countermeasure, in order to block acoustic conduction between the vibration conductor 227 and the transmitter 23, the soft cover 463 is provided with an insulating ring portion 465 having an acoustic impedance different from that of the soft cover body. The insulating ring portion 465 can be formed by integrally molding or joining a material different from the material of the soft cover main body. The insulating ring portion 465 may be formed by bonding layers having different acoustic impedances to the outside or the inside of the soft cover 463 molded from the same material. Furthermore, a plurality of insulating ring portions 465 may be interposed between the vibration conductor 227 and the transmitter 23 to enhance the insulating effect.

  In addition, the soft cover 463 is configured as a microphone cover portion 467 in which the vicinity of the transmission portion 23 (the microphone 223) does not prevent air conduction in order to make a call while the mobile phone 401 is housed. The Such a microphone cover portion 467 has a sponge-like structure such as an earphone cover.

  FIG. 12 is a flowchart of the operation of the control unit 239 (FIG. 8 diversion) in the fifth embodiment of FIG. In the flow of FIG. 12, the same step numbers are assigned to portions common to the flow of FIG. 10, and description thereof is omitted. FIG. 12 also mainly illustrates the functions of the cartilage conduction vibration unit 228 in order to explain the functions. Accordingly, similarly to FIG. 10 and the like, even in the fifth embodiment, there are operations of the control unit 239 that are not shown in the flow of FIG.

  In the flow of FIG. 12, when the process reaches step S62, it is checked whether or not the touch panel is set to OFF by the operation described above. If it is not set to OFF, the process proceeds to step S64 and the function of the push / push button 461 is disabled. Then, the process proceeds to step S66 to reach step S34. The portion shown as the normal processing in step S66 is the step S14, step S18 to step S22, step S32, step S36, step S38 and step S42 to step S58 in FIG. 10 (that is, the portion between step S44 and step S34). ). In other words, when shifting from step S62 to step S64, the flow of FIG. 12 performs the same function as FIG.

  On the other hand, when it is detected in step S62 that the touch panel off setting is performed, the flow proceeds to step S68, the function of the push / push button 461 is enabled, and the process proceeds to step S70. In step S70, the function of the touch panel is disabled, and in step S72, it is detected whether or not the push / push button 461 has been pressed for the first time. If no pressing is detected here, the process directly proceeds to step S34. On the other hand, when the first pressing of the push / push button 461 is detected in step S72, the process proceeds to step S74, and it is detected whether or not the mobile phone 401 is stored in the soft cover 463. This detection is possible, for example, by the functions of the infrared light emitting units 19 and 20 and the infrared light proximity sensor 21 constituting the proximity sensor.

  When storage in the soft cover 463 is detected in step S74, the flow proceeds to step S76, where the transmitter 23 is turned on and the receiver 13 is turned off. Further, in step S78, the cartilage conduction vibration source 225 is turned on, and the process proceeds to step S80, where the mobile phone 401 is set in a call state. If it is already in a call state, this is continued. On the other hand, if the storage in the soft cover 463 is not detected in step S74, the process proceeds to step S82 where both the transmitter 23 and receiver 13 are turned on, and the cartilage conduction vibration source 225 is turned off in step S84. Proceed to In step S86 subsequent to step S80, the ear plug bone effect processing is performed, and the process proceeds to step S88. The ear canal bone conduction effect process in step S86 is a summary of steps S52 to S56 in FIG.

  In step S88, whether or not the push / push button 461 has been pressed for the second time is detected. If there is no detection, the flow returns to step S74, and steps S74 to S88 are repeated unless a second press of the push / push button 461 is detected. In this repetition during a call, whether or not the mobile phone 401 is stored in the soft cover 463 is always checked, so that the user is in the middle of a call when, for example, the environmental noise is large and it is difficult to hear the sound at the receiver 13. Thus, when the mobile phone 401 is housed in the soft cover 463, it is possible to take measures such as blocking environmental noise or making the sound easier to hear due to the effect of the ear plug bone.

  On the other hand, when the second press of the push / push button 461 is detected in step S88, the flow proceeds to step S90, the call is disconnected, and all the transmission / reception functions are turned off in step S92, and the process proceeds to step S34. Since it is checked in step S34 whether the main power supply is off or not, if there is no main power supply off detection, the flow returns to step S62, and thereafter steps S62 to S92 and step S34 are repeated. In this repetition, the response to the touch panel off setting by the operation of the touch panel already described or the cancellation of the off setting by the long push of the push / push button 461 is performed in step S64. Can do.

  FIG. 13 is a perspective view showing Example 6 of the mobile phone according to the embodiment of the present invention. FIG. 13A is a front perspective view similar to FIG. 7, but since Example 6 is configured as a digital camera having a mobile phone function as described later, it is rotated 90 degrees from FIG. It is shown in the angle of the usage state as a digital camera. FIG. 13B is a rear perspective view (front perspective view when viewed as a digital camera), and FIG. 13C is a cross-sectional view taken along the line BB in FIG. 13B.

  The sixth embodiment is also based on the fourth embodiment shown in FIG. 7, and since most of the structure is common, the corresponding parts are denoted by the same reference numerals and the description thereof is omitted. In addition, in order to avoid complication of illustration, the number of description omitted is also omitted from the number itself, but the function and name of the common part in the drawing are the same as in FIG. In addition, about a detailed structure, the block diagram of Example 4 in FIG. 8 and FIG. 9 is used fundamentally. The first difference between the sixth embodiment and the fourth embodiment is that the mobile phone 501 is configured as a digital camera having a mobile phone function. That is, as shown in FIG. 13B, a zoom lens 555 having high optical performance is employed as the imaging lens of the rear main camera. Note that the zoom lens 555 protrudes in a state indicated by a one-dot chain line in FIG. 13B when in use, but retracts to a position that is flush with the outer surface of the mobile phone 501 when not in use. It has a configuration. Further, a strobe 565 and a shutter release button 567 for projecting auxiliary light when the subject is dark are provided. Further, the cellular phone 501 has a grip portion 563 suitable for holding the camera with the right hand.

  The second point in which the sixth embodiment is different from the fourth embodiment is that the grip portion 563 is similar to the soft cover 463 in the fifth embodiment in that the material has similar acoustic impedance to the ear cartilage (silicone rubber, silicone rubber). And a butadiene rubber mixture, natural rubber, or a structure in which air bubbles are sealed in the rubber), and has elasticity suitable for improving the grip feeling. Unlike the arrangement of the fourth embodiment, a cartilage conduction vibration source 525 is arranged on the back side of the grip portion 563. As is clear from the cross section of FIG. 13C, the cartilage conduction vibration source 525 is in contact with the back surface of the grip portion 563.

  Therefore, by applying the grip portion 563 to the ear, the vibration of the cartilage conduction vibration source 525 is transmitted to the ear cartilage with a wide contact area through the grip portion 563. Further, the sound from the outer surface of the grip portion 563 that resonates due to the vibration of the cartilage conduction vibration source 525 is transmitted from the ear canal to the eardrum. As a result, the sound source information from the cartilage conduction vibration source 525 can be heard as a loud sound. Similarly to the fifth embodiment, since the grip portion 563 applied to the ear closes the ear canal, it is possible to block environmental noise. Further, in the same manner as in Example 5, when the force pressing the grip portion 563 against the ear is increased, the external auditory canal is almost completely blocked, and the sound source information from the cartilage conduction vibration source 525 is further obtained by the ear plug bone conduction effect. It can be heard as a loud sound. Although detection is performed via the grip portion 563, in the same manner as in the fifth embodiment, in the state where the ear plug bone conduction effect is generated based on the detection of the pressing force by the cartilage conduction vibration source 525, the transmission of a microphone or the like is performed. The waveform inversion signal is added to the voice signal from the unit 523.

  Further, unlike the fourth embodiment, the transmitter 523 is provided not on the front face of the mobile phone 501 but on the end face, as is apparent from FIG. Therefore, the transmitter 523 can pick up the user's voice in common when making a call with the receiver 13 placed on the ear or when making a call with the grip portion 563 on the back side placed on the ear. It should be noted that the setting can be switched with the switching button 561 as to whether the receiver 13 or the cartilage conduction vibration source 525 is enabled. Further, in the state where the zoom lens 555 protrudes in the state indicated by the alternate long and short dash line in FIG. 13B, it is unsuitable for making a call with the grip portion 563 applied to the ear. When the setting for enabling the cartilage conduction vibration source 525 is made, the zoom lens 555 is automatically retracted, and execution of switching is suspended until the retracting is completed.

  FIG. 14 is a flowchart of the operation of the control unit 239 (FIG. 8 diversion) in the sixth embodiment of FIG. In the flow of FIG. 14, the same step numbers are assigned to portions common to the flow of FIG. 10, and description thereof is omitted. FIG. 14 also shows operations extracted with a focus on related functions in order to mainly explain the functions of the cartilage conduction vibration unit 228. Therefore, similarly to FIG. 10 and the like, in the sixth embodiment, there are operations of the control unit 239 that are not shown in the flow of FIG.

  In the flow of FIG. 14, it is checked whether or not a call start operation has been performed at step S104. If there is no operation, the process immediately proceeds to step S34. On the other hand, when a call start operation is detected, the process proceeds to step S106, and it is checked whether or not the cartilage conduction setting is made by the switch button 561. If cartilage conduction is set, it is checked in step S108 whether the zoom lens 555 is protruding. As a result, if the zoom lens 555 does not protrude, the process proceeds to step S110, the transmitter 523 is turned on and the receiver 13 is turned off, the cartilage conduction vibration source 525 is turned on in step S112, and the process proceeds to step S46.

  On the other hand, when the cartilage conduction setting is not detected in step S106, the process proceeds to step S114, the transmitter 523 and the receiver 13 are turned on together, the cartilage conduction vibration source 525 is turned off in step S116, and the process proceeds to step S118. Further, even if the cartilage conduction setting is detected in step S106, if it is detected in step S108 that the zoom lens 555 is protruding, the process proceeds to step S110, and the retracting of the zoom lens 555 is instructed to step S114. Transition. If the retraction is already started, the continuation is instructed. As will be described later, steps S106 to S116 are repeated unless the call state is cut off. In this manner, in accordance with the cartilage conduction setting detection in step S106, the collapsing is instructed in step S110. After the collapsing is started, the collapsing is completed, and the projection of the zoom lens 555 is not detected in step S108. The state of step S114 and step S116 is maintained without shifting to.

  Steps S46 to S56 subsequent to step S112 are the same as those in FIG. When the process proceeds from step S54 or step S56 to step S118, it is checked whether or not the call state has been disconnected. If the call disconnection is not detected, the flow returns to step S106, and thereafter, the process returns from step S106 to step S118 and from step S46 to step S46. S56 is repeated. Thereby, for example, when the environmental noise is large and it is difficult to hear the sound at the receiving unit 13, the user operates the switching button 561 during the call to switch to the cartilage conduction setting, thereby blocking the environmental noise, It is possible to take measures such as making the sound easier to hear due to the lead effect. At this time, if the zoom lens 555 is in the protruding state, it is automatically retracted.

  FIG. 15 is a perspective view showing Example 7 of the mobile phone according to the embodiment of the present invention. The mobile phone 601 of the seventh embodiment is configured such that the upper portion 607 can be folded on the lower portion 611 by the hinge portion 603 in the same manner as the first embodiment. 15A is a front perspective view similar to FIG. 1, and FIG. 15B is a rear perspective view thereof. FIG. 15C is a cross-sectional view of a principal part taken along the line BB in FIG. Since most of the structure of the seventh embodiment is the same as that of the first embodiment, the corresponding parts are denoted by the same reference numerals and description thereof is omitted. In addition, in order to avoid complication of illustration, the number of description omitted is omitted from the number itself, but the function and name of the common part in the drawing are the same as in FIG. Although the overview is common with that of the first embodiment, the block diagram of the fourth embodiment in FIGS. 8 and 9 is basically used for the internal detailed configuration.

  The first point that the seventh embodiment is different from the first embodiment is that a cartilage conduction output portion 663 having a large area is provided near the hinge of the upper portion 607 as shown in FIG. The cartilage conduction output portion 663 is similar to the soft cover 463 in the fifth embodiment and the grip portion 563 in the sixth embodiment. A mixture of natural rubber, or a structure in which air bubbles are sealed in these, and provided with elasticity suitable for protecting foreign matter from colliding with the outer wall of the mobile phone 601. Unlike the arrangement of the first embodiment, a cartilage conduction vibration source 625 is arranged on the back side of the cartilage conduction output unit 663. As is clear from the cross section of FIG. 15C, the cartilage conduction vibration source 625 is in contact with the back surface of the cartilage conduction output portion 663.

  Therefore, by folding the cellular phone 601 and placing the cartilage conduction output unit 663 on the ear, the vibration of the cartilage conduction vibration source 625 is transmitted to the ear cartilage with a wide contact area through the cartilage conduction output unit 663. Further, the sound from the outer surface of the cartilage conduction output unit 663 that resonates due to the vibration of the cartilage conduction vibration source 625 is transmitted from the ear canal to the eardrum. As a result, the sound source information from the cartilage conduction vibration source 625 can be heard as a loud sound. Similarly to the fifth embodiment and the sixth embodiment, the cartilage conduction output portion 663 applied to the ears closes the ear canal, so that environmental noise can be blocked. Further, in the same manner as in Example 5 and Example 6, when the force for pressing the cartilage conduction output portion 663 against the ear is increased, the external auditory canal is almost completely blocked, and the cartilage conduction vibration source 625 is caused by the ear plug bone conduction effect. Sound source information from can be heard as a louder sound. Although detection is performed via the cartilage conduction output unit 663, in the same manner as in the fifth and sixth embodiments, in the state where the ear plug bone conduction effect is generated based on the detection of the pressing force by the cartilage conduction vibration source 625. The waveform inversion signal is added to the voice signal from the transmitter 623 such as a microphone.

  The second point in which the seventh embodiment is different from the first embodiment is that, as shown in FIG. 15A, the transmitter 623 is provided not on the front surface of the lower portion 611 of the mobile phone 601 but on the lower end surface of the lower portion 611. It is a point. Therefore, when the mobile phone 601 is opened and the receiver 13 is placed on the ear to make a call, and the mobile phone 601 is closed and the cartilage conduction output portion 663 is placed on the ear, the transmitter 623 is common. You can pick up the voice of the user. If the mobile phone 601 is set to support cartilage conduction switching, the reception unit 13 is activated when the mobile phone 601 is opened, and the cartilage conduction vibration source 625 is automatically activated when the mobile phone 601 is closed. Will be switched. On the other hand, if the cartilage conduction switching setting is not set, the cartilage conduction vibration source 625 is not automatically enabled, and normal transmission / reception functions regardless of whether the cellular phone 601 is opened or closed.

  As is apparent from the rear perspective view of FIG. 15B, a rear main camera 55, a speaker 51, and a rear display portion 671 are provided on the rear surface of the mobile phone 601. Further, on the back surface of the mobile phone 601, there is provided a push / push button 661 which is effective when the cartilage conduction switching setting is performed and the mobile phone 601 is closed. The push / push button 661 has a function of starting a call when pressed for the first time as in the fifth embodiment and disconnecting the call when pressed for the second time during a call. Note that the first push of the push / push button 661 is performed when a call is made to a specific partner or when a response to an incoming call is made, and in any case, a call is started.

  FIG. 16 is a flowchart of the operation of the control unit 239 (FIG. 8 diversion) in the seventh embodiment of FIG. In the flow of FIG. 16, the same step numbers are assigned to the portions common to the flow of FIG. 14, and the description is omitted. FIG. 16 also mainly illustrates the functions of the cartilage conduction vibration unit 228 in order to explain the functions. Accordingly, as in FIG. 14 and the like, in the seventh embodiment, there are operations of the control unit 239 that are not shown in the flow of FIG.

  In the flow of FIG. 16, when a call is started and the process reaches step S122, it is checked whether or not the cartilage conduction switching setting is made. When the cartilage conduction switching correspondence setting is confirmed in step S122, the process proceeds to step S124, and whether or not the cellular phone 601 is opened, that is, from the state where the upper part 607 is overlapped with the lower part 611 and opened as shown in FIG. Check if it is in the correct state. When it is confirmed that the cellular phone 601 is not opened and the upper portion 607 is folded over the lower portion 611, the process proceeds to step S110, the transmitter 623 is turned on and the receiver 13 is turned off. In step S112, the cartilage conduction vibration source 625 is turned on, and the process proceeds to step S46. In this way, the cartilage conduction output unit 663 can receive a call while the cellular phone 601 is folded.

  On the other hand, when the cartilage conduction switching correspondence setting is not detected in step S122, the process proceeds to step S114 without questioning whether or not the cellular phone 601 is folded, and the transmitter 623 and the receiver 13 are turned on together with step S116. Then, the cartilage conduction vibration source 625 is turned off and the process proceeds to step S118. Furthermore, when it is confirmed that the mobile phone 601 is opened in step S124 when the setting for cartilage conduction switching is detected in step S106, the process proceeds to step S114.

  In the flow of FIG. 16 as well, whether or not the call state has been disconnected is checked in step S118, and if the call disconnection is not detected, the flow returns to step S122. Hereinafter, step S122, step S124, step S114 to step S118 and Steps S46 to S56 are repeated. In this way, if the cartilage conduction switching setting is set in advance, the user folds the mobile phone 601 during the call and, for example, when the environmental noise is large and it is difficult to hear the sound at the receiver 13, the cartilage conduction output unit By switching to the reception by 663, it is possible to take measures such as blocking environmental noise or making the sound easier to hear due to the effect of the ear plug bone conduction.

  Summarizing the features of Examples 5 to 6 described above, the mobile phone has a cartilage conduction vibration source and a conductor for guiding the vibration of the cartilage conduction vibration source to the ear cartilage, and this conductor is configured as an elastic body. Or a size that touches the ear cartilage at several locations or a size that touches the ear cartilage to block the ear canal, or at least has an area that approximates the earlobe, or approximates the acoustic impedance of the ear cartilage Has acoustic impedance. The sound information from the cartilage conduction vibration source can be effectively heard by any one or a combination of these features. Further, utilization of these features is not limited to the above embodiment. For example, by utilizing the advantages of the material, size, area, arrangement, and structure disclosed in the above embodiments, the present invention can be configured without using the conductor as an elastic body.

  FIG. 17 is a perspective view showing Example 8 of the mobile phone according to the embodiment of the present invention. The eighth embodiment is configured as a digital camera having a mobile phone function, similar to the sixth embodiment of FIG. 13. FIG. 17A is a front perspective view and FIG. 17B is the same as FIG. FIG. 17C is a cross-sectional view taken along the line BB in FIG. 17B. Since the structure of the eighth embodiment is the same as that of the sixth embodiment of FIG. 13, the corresponding parts are denoted by the same reference numerals and description thereof is omitted.

  The eighth embodiment differs from the sixth embodiment in that a cartilage conduction vibration source 725 is embedded in the grip portion 763 as is apparent from the cross section of FIG. As in Example 6 in FIG. 13, the grip part 763 is made of a material having an acoustic impedance similar to that of the ear cartilage (silicone rubber, a mixture of silicone rubber and butadiene rubber, natural rubber, or air bubbles sealed in these. Structure) and has elasticity suitable for improving the grip feeling. The internal detailed configuration basically uses the block diagram of the fourth embodiment in FIGS. 8 and 9 as in the sixth embodiment.

  A flexible connection line 769 in FIG. 17C connects the cartilage conduction vibration source 725 embedded in the grip portion 763 and a circuit portion 771 such as the phase adjustment mixer portion 236 in FIG. 8. The embedded structure of the cartilage conduction vibration source 725 in the grip portion 763 as shown in the sectional view of FIG. 17C can be realized by integral molding in which the cartilage conduction vibration source 725 and the flexible connection line 769 are inserted into the grip portion 763. is there. It can also be realized by dividing the grip portion 763 into two bodies with the flexible connection line 769 and the cartilage conduction vibration source 725 as a boundary and bonding the grip portion 763 with the flexible connection line 769 and the cartilage conduction vibration source 725 sandwiched therebetween. .

  In the eighth embodiment, when the grip portion 763 is applied to the ear, the vibration of the cartilage conduction vibration source 725 is transmitted to the ear cartilage with a wide contact area through the grip portion 763, and resonates due to the vibration of the cartilage conduction vibration source 725. The sound from the outer surface of the grip portion 763 is transmitted from the ear canal to the eardrum, the grip portion 763 applied to the ear closes the ear canal, blocks environmental noise, and presses the grip portion 763 against the ear. When the force is increased, the external auditory canal is almost completely blocked, and the sound source information from the cartilage conduction vibration source 725 can be heard as a louder sound by the effect of the ear plug bone, as in the sixth embodiment. Further, based on the detection of the pressing force by the cartilage conduction vibration source 625, in a state where the effect of the ear plug bone is generated, the waveform inversion signal is added to the voice signal from the transmitter 523 such as a microphone. Similar to Example 6. In Example 8, since the cartilage conduction vibration source 725 is embedded in the grip portion 763, the distortion of the cartilage conduction vibration source 725 caused by the distortion of the grip portion 763 due to an increase in pressing force causes an ear plug bone conduction effect. Is detected.

  The significance of embedding the cartilage conduction vibration source 725 in the elastic body such as the grip portion 763 in the eighth embodiment is to take a countermeasure against impact on the cartilage conduction vibration source 725 in addition to obtaining good sound conduction as described above. It is in. In the eighth embodiment, the piezoelectric bimorph element used as the cartilage conduction vibration source 725 has a property of hating impact. Here, by constructing the cartilage conduction vibration source 725 so as to wrap from the periphery as in the eighth embodiment, it is possible to provide a buffer against the impact applied to the rigid structure of the mobile phone 701, and the mobile phone is always exposed to risks such as dropping. Mounting on the telephone 701 can be facilitated. The elastic body that encloses the cartilage conduction vibration source 725 functions not only as a buffer material but also as a configuration that more effectively transmits the vibration of the cartilage conduction vibration source 725 to the ear as described above.

  FIG. 18 is a perspective view showing Example 9 of the mobile phone according to the embodiment of the present invention. The mobile phone 801 according to the ninth embodiment is configured such that the upper portion 807 can be folded onto the lower portion 611 by the hinge portion 603 in the same manner as the seventh embodiment. 18, as in FIG. 15, FIG. 18 (A) is a front perspective view, FIG. 18 (B) is a rear perspective view, and FIG. 18 (C) is a cross-sectional view taken along the line BB in FIG. It is sectional drawing. Since the structure of the eighth embodiment in FIG. 18 is the same as that of the seventh embodiment in FIG. 15, the corresponding parts are denoted by the same reference numerals and the description thereof is omitted.

  The ninth embodiment differs from the seventh embodiment in that the cartilage conduction vibration source 825 is sandwiched between the cartilage conduction output portion 863 and the internal cushioning material 873, as is apparent from the cross section of FIG. This cartilage conduction output portion 863 is similar to the cartilage conduction output portion 663 in the seventh embodiment. It is made of a structure in which air bubbles are sealed, and has elasticity suitable for protecting foreign matter from colliding with the outer wall of the mobile phone 801. The internal buffer material 873 can be made of any material as long as it is an elastic body for buffering, but can be made of the same material as the cartilage conduction output portion 863. As in the seventh embodiment, the detailed internal configuration basically uses the block diagram of the fourth embodiment shown in FIGS. 8 and 9.

  As shown in the cross section of FIG. 18C, a cartilage conduction vibration source 825 and a flexible connection line 869 are sandwiched between the cartilage conduction output portion 863 and the internal cushioning material 873. As in the eighth embodiment, the flexible connection line 869 connects the cartilage conduction vibration source 825 to a circuit portion 871 such as the phase adjustment mixer 236 in FIG. The structure in which the cartilage conduction vibration source 825 and the flexible connection line 869 are sandwiched between the cartilage conduction output portion 863 and the internal cushioning material 873 are collected in the cartilage conduction output unit 875. It is fitted into the upper part 807 of the cellular phone 801.

  Also in the ninth embodiment, by applying the cartilage conduction output unit 863 to the ear, the vibration of the cartilage conduction vibration source 825 is transmitted to the ear cartilage with a wide contact area through the cartilage conduction output unit 863, and the cartilage conduction vibration source 825. The sound from the cartilage conduction output unit 863 that resonates due to vibration of the ear is transmitted from the ear canal to the tympanic membrane, the cartilage conduction output unit 863 applied to the ear closes the ear canal, blocks environmental noise, and cartilage Example 7 shows that when the force for pressing the conduction output unit 863 against the ear is increased, the external auditory canal is almost completely blocked, and the sound source information from the cartilage conduction vibration source 825 can be heard as a louder sound by the effect of the ear plug bone. It is the same. Further, based on the detection of the pressing force by the cartilage conduction vibration source 825, in the state where the effect of the ear plug bone is generated, the waveform inversion signal is added to the voice signal from the transmission unit 623 such as a microphone. The same as in Example 7. In the ninth embodiment, the cartilage conduction vibration source 825 is sandwiched between the cartilage conduction output portion 863 and the internal cushioning material 873, both of which are elastic bodies. A state in which the ear plug bone conduction effect is generated by the distortion of the cartilage conduction vibration source 825 accompanying the distortion of the conduction output unit 863 is detected.

  In Example 9, the significance of the structure in which the cartilage conduction vibration source 825 is sandwiched between the cartilage conduction output portion 863 and the internal cushioning material 873, both of which are elastic bodies, is to obtain good sound conduction as described above. In addition to this, there is a countermeasure against an impact on the cartilage conduction vibration source 825 constituted by a piezoelectric bimorph element. That is, in the same manner as in the eighth embodiment, by constructing the cartilage conduction vibration source 825 to be wrapped with an elastic body from the periphery, it is possible to provide a buffer against an impact applied to the rigid structure of the mobile phone 801, and it is always possible to risk dropping. Can be easily mounted on the mobile phone 801 exposed to the mobile phone. The elastic body sandwiching the cartilage conduction vibration source 825 not only functions as a cushioning material, but also at least the outer elastic body is molded from a material whose acoustic impedance approximates that of the ear cartilage, so that the cartilage conduction vibration is performed as described above. It functions as a configuration that more effectively transmits the vibration of the source 825 to the ear.

  FIG. 19 is a perspective view showing Example 10 of the mobile phone according to the embodiment of the present invention. Similar to the fourth embodiment, the mobile phone 901 of the tenth embodiment is an integrated type that has no movable part, and is configured as a so-called smartphone having a large screen display unit 205 having a GUI function. And since there are many common points in the structure, the same number is attached | subjected to the corresponding part, and description is abbreviate | omitted. As in the fourth embodiment, in the tenth embodiment as well, the “upper portion” does not mean the separated upper portion, but means the upper portion of the integrated structure.

  The tenth embodiment differs from the fourth embodiment in that a cartilage conduction vibration source 925 made of a piezoelectric bimorph element or the like serves as a cartilage conduction vibration source and also serves as a drive source for a receiver that generates sound waves transmitted to the eardrum by air conduction. It is a point. Specifically, as in the fourth embodiment, the vibration conductor 227 is disposed on the upper side of the mobile phone in contact with the upper part of the cartilage conduction vibration source 925. Further, in front of the cartilage conduction vibration source 925, a material (acoustic silicone, a mixture of silicone rubber and butadiene rubber, natural rubber, or natural rubber having an acoustic impedance similar to that of the ear cartilage in the same manner as in Example 7 is used. A cartilage conduction output portion 963 made by a structure in which air bubbles are sealed is disposed. Further, as described later, the cartilage conduction output unit 963 also serves as a receiver for generating a sound wave transmitted to the eardrum by air conduction, and therefore, in the tenth embodiment, there is no separate receiver 13 as in the fourth embodiment.

  With the above configuration, first, the vibration of the cartilage conduction vibration source 925 is transmitted to the side by the vibration conductor 227 and vibrates both ends 224 and 226. By contacting one of them with the tragus, the cartilage You can hear sound through conduction. As in the fourth embodiment, the vibration conductor 227 does not vibrate only at the right end 224 and the left end 226 but vibrates as a whole. Accordingly, also in the tenth embodiment, voice information can be transmitted regardless of where the inner upper edge of the mobile phone 901 is brought into contact with the ear cartilage. Then, when the mobile phone 901 is applied to the ear in such a manner that a part of the cartilage conduction output unit 963 is in front of the entrance to the ear canal, as in a normal mobile phone, the vibration conductor 227 contacts the wide range of the ear cartilage. At the same time, the cartilage conduction output portion 963 contacts the ear cartilage such as the tragus. Through such contact, sound can be heard by cartilage conduction. Further, in the same manner as in the fifth to ninth embodiments, sound from the outer surface of the cartilage conduction output unit 963 resonated by vibration of the cartilage conduction vibration source 925 is transmitted from the ear canal to the eardrum as sound waves. In this manner, the cartilage conduction output unit 963 can function as an air-conducting receiving unit in a normal mobile phone use state.

  The conduction of cartilage differs depending on the pressure applied to the cartilage, and a more effective conduction state can be obtained by increasing the pressure. This means that if the received sound is difficult to hear, the natural action of increasing the force of pressing the mobile phone against the ear can be used for volume adjustment. And even if such a function is not explained to the user by an instruction manual, for example, the user can naturally understand the function through natural actions. In the tenth embodiment, the configuration in which the vibration of the cartilage conduction vibration source 925 is configured so that both the vibration conductor 227 which is a rigid body and the cartilage conduction output unit 963 which is an elastic body can simultaneously contact the ear cartilage is mainly a rigid body. This is because the volume can be adjusted more effectively through the adjustment of the pressing force of the vibration conductor 227.

  The implementation of the present invention is not limited to the above-described embodiments, and the various advantages of the present invention described above can also be enjoyed in other embodiments. For example, in the tenth embodiment, when the combination of the cartilage conduction vibration source 925 and the cartilage conduction output unit 963 is configured to function exclusively for the air receiving part, the ear cartilage is located at the position where the cartilage conduction output unit 963 is disposed. And a resonator suitable as a speaker other than a material whose acoustic impedance approximates. Even in this case, in the tenth embodiment, the cartilage conduction vibration source 925 formed of a piezoelectric bimorph element or the like serves as a cartilage conduction vibration source, and also serves as a drive unit for the earpiece that generates sound waves transmitted to the eardrum by air conduction and its features. Benefit from the benefits.

  FIG. 20 is a perspective view showing Example 11 of the mobile phone according to the embodiment of the present invention. Similar to the fourth embodiment, the cellular phone 1001 according to the eleventh embodiment is an integrated type having no movable part, and is configured as a so-called smartphone having a large screen display unit 205 having a GUI function. And since there are many common points in the structure, the same number is attached | subjected to the corresponding part, and description is abbreviate | omitted. In the same manner as in the fourth embodiment, in the eleventh embodiment, the “upper portion” does not mean the separated upper portion but the upper portion of the integrated structure.

  Example 11 differs from Example 4 in that the right-ear vibration unit 1024 and the left-ear vibration unit 1026 are not the front surface of the mobile phone 1001, but the side surfaces 1007, respectively, and the numbers are omitted because of the illustrated relationship. It is provided on the opposite side surface. (Note that the arrangement of the right-ear vibration unit 1024 and the left-ear vibration unit 1026 is reversed to the left and right with respect to the fourth embodiment in FIG. 7). Also in the eleventh embodiment, the right-ear vibration unit 1024 and the left-ear vibration unit 1026 are configured as both ends of the vibration conductor 1027, respectively, and a cartilage including a piezoelectric bimorph element or the like below the vibration conductor 1027. A conduction vibration source 1025 is placed in contact and transmits the vibration to the vibration conductor 1027. As a result, the vibration of the cartilage conduction vibration source 1025 is transmitted to the side by the vibration conductor 1027 to vibrate both ends 1024 and 1026 thereof. Both ends 1024 and 1026 of the vibration conductor 1027 are arranged so as to come into contact with the tragus when the upper end portion of the side surface (for example, 1007) of the mobile phone 1001 is applied to the ear.

  Further, the microphone 102 or the like can pick up the sound produced by the user even when either the right-ear vibration unit 1024 or the left-ear vibration unit 1026 is placed on the tragus. The mobile phone 1001 is provided on the lower surface. Note that the mobile phone 1001 of Example 11 is provided with a speaker 1013 for a videophone while observing the large screen display unit 205, and the transmitter 1023 such as a microphone has a high sensitivity when making a videophone. Switching is performed, and it is possible to pick up a sound produced by the user who is observing the large screen display unit 205.

  FIG. 21 is a side view of the cellular phone 1001 showing the functions of the right-ear vibration unit 1024 and the left-ear vibration unit 1026, and the illustrated method is the same as FIG. However, as described with reference to FIG. 20, in the eleventh embodiment, the right-ear vibration unit 1024 and the left-ear vibration unit 1026 are provided on the side surfaces of the mobile phone 1001. Therefore, when the mobile phone 1001 is applied to the ear in the eleventh embodiment, the side surface of the mobile phone 1001 is applied to the tragus as shown in FIG. That is, since the surface of the display unit 5 of the mobile phone 1 is not applied to the tragus as shown in FIG. 2, the large screen display unit 205 does not hit the ears or cheeks and is contaminated with sebum.

  Specifically, FIG. 21A shows a state in which the mobile phone 1001 is held in the right hand and the tragus 32 of the right ear 28 is applied, and the mobile phone 1001 is applied to the right ear 28. The side of the opposite side is visible, and the surface of the large screen display unit 205 whose cross section is shown is substantially perpendicular to the cheek and faces the lower back of the face. As a result, the large screen display unit 205 does not hit the ears or cheeks and becomes dirty with sebum as described above. Similarly, FIG. 21B shows a state in which the mobile phone 1001 is held in the left hand and is placed on the tragus 34 of the left ear 30, and in this case as well, as in FIG. 205 is almost perpendicular to the cheek and faces the lower back of the face, so that the large screen display unit 205 does not hit the ear or cheek and get dirty with sebum.

  For example, in the case of FIG. 21A, the mobile phone 1001 can be used without twisting the hand from the state where the mobile phone 1001 is held with the right hand and the large screen display unit 205 is observed. This is realized by moving and applying the right ear vibrating part 1024 to the tragus 32. Therefore, the observation state of the large-screen display unit 205 and the right-ear vibration unit 1024 are moved by the natural movement of the right hand by slightly changing the angle between the elbow and the wrist without changing the mobile phone 1001 or twisting the hand. Transitions between states for 32 are possible. In the above, for simplification of explanation, the state of FIG. 21 is such that the large screen display unit 205 is substantially perpendicular to the cheek. However, the angle of the hand and the posture of placing the mobile phone 1001 on the ear are the user. Can be freely selected, the angle of the cheeks of the large screen display unit 205 does not necessarily have to be a right angle, and may be inclined moderately. However, according to the configuration of the eleventh embodiment, the right-ear vibration unit 1024 and the left-ear vibration unit 1026 are provided on the side surfaces of the mobile phone 1001, respectively. The large screen display unit 205 does not hit the ears or cheeks and get dirty with sebum.

  In the eleventh embodiment, as a result of the large screen display unit 205 not being hidden in the direction of the cheek, there is a possibility that the display contents such as the call destination may be visible to the other people around. Therefore, in Example 11, for protection of privacy, switching from the normal display to the privacy protection display (for example, no display) is automatically performed when the right-ear vibration unit 1024 or the left-ear vibration unit 1026 is applied to the ear. Done. Details thereof will be described later.

  FIG. 22 is a perspective view showing Example 12 of the mobile phone according to the embodiment of the present invention. FIG. 22A shows a state where a handle 1181 described later does not protrude, and FIG. 22B shows a state where the handle 1181 protrudes. In the mobile phone 1101 of the twelfth embodiment, the cartilage conduction vibration portion 1124 is the side surface of the mobile phone 1101 (the left side surface as viewed in FIG. (No number is assigned). In addition, the twelfth embodiment is configured as a so-called smart phone having a large screen display unit 205 having a GUI function, based on an integrated mobile phone having no movable part, similar to the eleventh embodiment. Yes. And since there are many common points in the structure, the same number is attached | subjected to the corresponding part, and description is abbreviate | omitted. In the same manner as in the eleventh embodiment, in the twelfth embodiment, the “upper portion” does not mean the separated upper portion but means the upper portion of the integrated structure.

  Example 12 differs from Example 11 in that a cartilage conduction vibration part 1124 is provided on the left side surface of the mobile phone 1101 in FIG. . Further, since it can be applied to the ear only on the left side surface, a transmitter 1123 such as a microphone is also provided on the lower surface near the left side surface of the mobile phone 1101 as shown in FIG. In the twelfth embodiment as well, during a videophone call while observing the large screen display unit 205, the transmission unit 1123 is switched, and the large screen display unit 205 is pronounced by the user who is observing. You can pick up audio.

  In Example 12, the cartilage conduction vibration unit 1124 can be applied to the tragus of the right ear from the state in which the large screen display unit 205 is visible as shown in FIG. On the other hand, in order to put the cartilage conduction vibration portion 1124 against the tragus of the left ear, the soft cartilage conduction vibration portion 1124 can be opposed to the left ear by changing the mobile phone 1101 so that it faces down. . Such use is possible even in a state where the handle 1181 does not protrude as shown in FIG.

  Next, the function of the handle will be described. As shown in FIG. 21, one natural way to hold the cartilage conduction vibration portion 1124 at an angle such that the large screen display surface 205 is substantially perpendicular to the cheek is that the large screen display portion 205 is provided. The front and back surfaces of the mobile phone 1101 are sandwiched between the thumb and other four fingers. At this time, since the finger touches the large screen display unit 205, there is a possibility of malfunction and comparison during a call There is a risk of fingerprint smearing due to prolonged and strong contact.

  Therefore, in the twelfth embodiment, in order to facilitate the holding of the mobile phone 1101 while preventing the finger from touching the large screen display unit 205, the state shown in FIG. The handle 1181 is protruded to the state, and the handle 1181 can be used for holding. 22B, the handle 1181 and the end of the main body of the mobile phone 1101 can be sandwiched between the thumb and other four fingers, and the mobile phone 1101 can be easily attached without touching the large screen display portion 205. Can be held. In the case where the protrusion is configured to be relatively large, the cellular phone 1101 can be held by holding the handle 1181. As in the case of FIG. 22A, the cartilage conduction vibrating portion 1124 can be applied to the tragus of the left ear by holding the mobile phone 1101 facing down.

  In order to project the handle 1181 from FIG. 22A, the handle lock is released by pressing the projecting operation button 1183, and the handle protrudes slightly, so that it can be pulled out to be in the state of FIG. 22B. . Since the lock is applied in the state of FIG. 22B, there is no problem even when holding the handle 1181 and pressing the vibration part 1124 for cartilage conduction against the tragus. In order to store the handle 1181, the lock is released by pressing the protruding operation button 1183 in the state shown in FIG. 22B. Therefore, the handle 1181 is locked if the handle 1181 is pushed into the state shown in FIG.

  FIG. 23 is a flowchart of the operation of the control unit 239 (FIG. 8 diversion) in the twelfth embodiment of FIG. The flow in FIG. 23 has many parts in common with the flow in FIG. FIG. 23 also shows operations extracted with a focus on related functions in order to mainly explain the functions of the cartilage conduction vibration unit 228. Accordingly, similarly to FIG. 14 and the like, in the twelfth embodiment, there are operations of the control unit 239 that are not shown in the flow of FIG. In FIG. 23, portions different from those in FIG. 14 are shown in bold, and therefore, these portions will be mainly described below.

  In the flow of FIG. 23, when the process reaches step S104, it is checked whether or not a call start operation has been performed. If there is no operation, the process immediately proceeds to step S34. On the other hand, if a call start operation is detected, the process proceeds to step S132 to check whether the handle 1181 is in the protruding state. If not in the protruding state, the process proceeds to step S134, and it is checked whether the cartilage conduction vibration portion 1124 is in contact with the ear cartilage. When the contact state is detected, the process proceeds to step S136. If it is detected in step S132 that the handle 1181 is in the protruding state, the process proceeds to step S136.

  In step S136, the transmitter 1123 is turned on, and in step S138, the cartilage conduction vibration unit 1124 is turned on. On the other hand, in step S140, the speaker 1013 is turned off. In step S142, the display on the large screen display unit 205 is set as a privacy protection display. This privacy protection display is a predetermined display that does not include privacy information or is in a non-display state. At this time, only the display content is changed without turning off the large screen display unit 205 itself. After performing such display control, the process proceeds to step S52. In step S136 to step S142, if the target state has already been reached, the result of these steps is nothing and the process proceeds to step S52.

  On the other hand, when it is not detected in step S134 that the cartilage conduction vibration unit 1124 is in contact with the ear cartilage, the process proceeds to step S144 to turn on the transmitter 1123 and in step S146, The vibration unit 1124 is turned off. On the other hand, in step S148, the speaker 1013 is turned on. Next, the process proceeds to step S150, and the display on the large screen display unit 205 is set to the normal display. After performing such display control, the process proceeds to step S118. Even in steps S144 to S150, if the target state has already been achieved, these steps result in nothing and the process reaches step S118.

  Step S52 to step S56, step S118 and step S34 following step S142, and step S118 and step S34 subsequent to step S150 are the same as those in FIG. In step S118, a check is made as to whether or not the call state has been disconnected. If no call disconnection is detected, the flow returns to step S132, and steps S132 to S150 and steps S52 to S56 are repeated. . Thus, the cartilage conduction vibration unit 1124 and the speaker 1013 are automatically switched and the display is switched by inserting / removing the handle 1181 or the contact / non-contact of the cartilage conduction vibration unit 1124. In addition, when the cartilage conduction vibration unit 1124 is turned on, the presence / absence of the voice waveform inversion signal based on the presence / absence of the ear plug conduction effect is automatically switched.

  Note that, in the repetition of the above steps, a step of determining whether a predetermined time has elapsed since the display of the large screen display unit 205 first changed to the privacy protection display in step S142 and power saving when the predetermined time has elapsed. For this purpose, a step of turning off the large screen display unit 205 itself may be inserted between step S142 and step S52. At this time, a step for turning on the large screen display unit 205 when the large screen display unit 205 is turned off is inserted between step S148 and step S150. The flow of FIG. 23 can also be adopted in the embodiment 11 of FIG. 20 by omitting step S132.

  FIG. 24 is a perspective view showing Example 13 of the mobile phone according to the embodiment of the present invention. 24A shows a state in which a transmission / reception unit 1281 described later is integrated with the mobile phone 1201, and FIG. 24B shows a state in which the transmission / reception unit 1281 is separated. In the mobile phone 1201 of the thirteenth embodiment, the cartilage conduction vibration portion 1226 is disposed on the side surface 1007 of the mobile phone 1201 in the state shown in FIG. This is the same as in the eleventh and twelfth embodiments. Note that the thirteenth embodiment is a so-called smart phone having a large screen display unit 205 having a GUI function, which is based on an integrated mobile phone having no moving parts, similar to the eleventh and twelfth embodiments. It is configured as. And since there are many common points in the structure, the same number is attached | subjected to the corresponding part as Example 12, and description is abbreviate | omitted. It should be noted that in the thirteenth embodiment as in the eleventh and twelfth embodiments, the “upper portion” does not mean the separated upper portion, but means the upper portion of the integral structure.

  In Example 13, in the state of FIG. 24A, the cartilage conduction vibration part 1226 and the transmission part 1223 are arranged on the right side as viewed in FIG. It is the same composition as. However, when the large screen display unit 205 is visible as shown in FIG. 24, the cartilage conduction vibration unit 1226 is applied to the tragus of the left ear. In order to place the cartilage conduction vibration part 1226 on the tragus of the right ear, the cartilage conduction vibration part 1226 is opposed to the left ear by holding the mobile phone 1201 facing down.

  Example 13 is different from Example 12 in that a transmission / reception unit 1281 including a cartilage conduction vibration unit 1226 and a transmission unit 1223 can be separated from the mobile phone 1201 as shown in FIG. The transmission / reception unit 1281 can be detached from the cellular phone 1201 by operating the attachment / detachment lock button 1283. The transmission / reception unit 1281 further includes a cartilage conduction vibration unit 1226 including a power supply unit, a control unit 1239 for the transmission unit 1223, and a transmission / reception operation unit 1209. The transmission / reception unit 1281 also has a short-range communication unit 1287 such as Bluetooth (registered trademark) that can wirelessly communicate with the mobile phone 1201 by radio waves 1285. Information on the contact state of the unit 1226 with the ear is transmitted to the mobile phone 1201 and the vibration unit 1226 for cartilage conduction is vibrated based on the audio information received from the mobile phone 1201.

  The transmitter / receiver unit 1281 separated as described above functions as a pencil-type transmitter / receiver unit, and can communicate by freely holding the cartilage conduction vibration part 1226 and contacting the right or left tragus. is there. In addition, the effect of the ear plug bone can be obtained by increasing the contact pressure to the tragus. In addition, the transmitter / receiver unit 1281 in a separated state can hear sound by cartilage conduction, regardless of which surface or tip of the cartilage conduction vibration part 1226 around the long axis is applied to the ear. Further, the transmission / reception unit 1281 is usually housed in the mobile phone 1201 as shown in FIG. 24A and separated as shown in FIG. 24B, as well as in FIG. 24B. In the separated state, for example, the cellular phone 1201 is stored in an inner pocket or a bag, and the transmission / reception unit 1281 is inserted in the outer pocket of the chest like a pencil, and operations and calls at the time of outgoing and incoming calls are transmitted and received. Usage such as that performed only by the unit 1281 is also possible. The cartilage conduction vibration unit 1226 can also function as an incoming vibrator.

  The pencil-type transmission / reception unit 1281 as in the thirteenth embodiment is not limited to a combination with a dedicated mobile phone 1201 having a storage unit. For example, it can be configured as an accessory of a general mobile phone having a short-range communication function such as Bluetooth (registered trademark).

  FIG. 25 is a perspective view showing Example 14 of the mobile phone according to the embodiment of the present invention. FIG. 25A shows a state in which a transmission / reception unit 1381 described later is housed in the mobile phone 1301, and FIG. 25B shows a state in which the transmission / reception unit 1381 is pulled out. In the mobile phone 1301 of the fourteenth embodiment, the cartilage conduction vibration portion 1326 is disposed on the side surface 1007 of the mobile phone 1301 in the state of FIG. This is the same as in the eleventh to thirteenth embodiments. The fourteenth embodiment is a so-called smart phone having a large screen display unit 205 having a GUI function based on an integrated mobile phone having no movable part, similar to the eleventh to thirteenth embodiments. It is configured as. And since there are many common points in the structure, the same number is attached | subjected to a corresponding part, and description is abbreviate | omitted. In the same manner as in the eleventh to thirteenth embodiments, in the fourteenth embodiment, the “upper portion” does not mean the separated upper portion, but means the upper portion of the integrated structure.

  The configuration of the fourteenth embodiment is the same as that of the thirteenth embodiment shown in FIG. 24A in the state shown in FIG. The fourteenth embodiment differs from the thirteenth embodiment in that the transmission / reception unit 1381 communicates with the mobile phone 1301 not by radio but by wire as shown in FIG. The transmission / reception unit 1381 can be detached from the cellular phone 1301 by operating the detachment lock button 1283 in the same manner as in the thirteenth embodiment. In the transmission / reception unit 1381, a cable 1339 is connected between the cartilage conduction vibration unit 1326 and the transmission unit 1323 and between the transmission unit 1323 and the mobile phone 1301. 25A, the portion of the cable 1339 between the cartilage conduction vibration portion 1326 and the transmitter portion 1323 is stored in the groove of the side surface 1007, and the transmitter portion 1323 is The part between the mobile phones 1301 is automatically wound inside the mobile phone 1301 by a spring when the transmitter 1323 is accommodated. Note that the transmitter unit 1323 is provided with a remote control operation unit for operations at the time of outgoing and incoming calls. As described above, in the fourteenth embodiment, the user's voice picked up from the transmitter 1323 and the information on the contact state of the cartilage conduction vibration unit 1326 with the ear are transmitted to the mobile phone 1301 by wire, and the mobile phone. Based on the voice information received from the telephone 1301 by wire, the cartilage conduction vibration unit 1326 is vibrated.

  The transmitter / receiver unit 1381 drawn out as shown in FIG. 25B is used by being hooked on the lower cartilage at the entrance to the ear canal so that the portion of the cartilage conduction vibrating portion 1326 touches the tragus. In this state, since the transmitter 1323 is located near the mouth, the user's voice can be picked up. In addition, it is also possible to obtain an ear plug bone conduction effect by increasing the contact pressure to the tragus with the portion 1326 for cartilage conduction. Further, the transmission / reception unit 1381 is usually housed in the mobile phone 1301 as shown in FIG. 25A and used as shown in FIG. With the receiving unit 1381 pulled out, for example, the mobile phone 1301 can be stored in an inner pocket or the like, and the cartilage conduction vibration portion 1326 of the transmitting / receiving unit 1381 can be kept hooked on the ear. It should be noted that the cartilage conduction vibrating portion 1326 can also function as an incoming vibrator in the same manner as in the thirteenth embodiment.

  The wired earphone-type transmission / reception unit 1381 as in the fourteenth embodiment is not limited to being configured in combination with the dedicated mobile phone 1301 having the storage unit. For example, it can be configured as an accessory of a general mobile phone having an external earphone / microphone connection terminal.

  The various features shown in the above embodiments are not necessarily specific to each embodiment, and the features of each embodiment are appropriately different from those of other embodiments as long as the advantages can be utilized. They can be combined or rearranged.

  The implementation of the various features shown in the above embodiments is not limited to the above embodiments, and other embodiments can be implemented as long as the advantages can be enjoyed. For example, the arrangement of the vibration part for cartilage conduction on the side surface with respect to the display surface in Example 11 to Example 14 is configured to transmit audio information from the tragus by cartilage conduction, thereby facilitating contact with the tragus, Since the conduction point of sound information can be used as a tragus, it is possible to realize a listening posture with a sense of incongruity similar to that of a conventional telephone that is heard by ear. In addition, sound transmission by cartilage conduction is suitable for placement on the side surface because it is not necessary to form a closed space in front of the ear canal opening as in the case of air conduction. Furthermore, since sound information is conducted by cartilage conduction, the rate of air conduction due to vibration of the vibrating body is small, and even if the cartilage conduction vibration part is arranged on the side surface of a narrow mobile phone, it is not substantially transmitted to the outside. Sound can be transmitted into the user's ear canal without sound leakage. This is because in cartilage conduction, sound does not enter the external auditory canal as air conduction sound, but sound energy is transmitted by contacting the cartilage, and then sound is generated inside the external auditory canal by vibration of the ear tissue. Because. Accordingly, the adoption of the vibration part for cartilage conduction in Example 11 to Example 14 is applied to the side surface with respect to the display surface without fear of annoying or leaking privacy by hearing the reception sound by the person next to the sound leaking. The effect is great in arranging the sound information output unit.

  However, from the viewpoint of enjoying the advantage of preventing contamination of the display surface due to contact of the ears and cheeks when listening to audio information, the arrangement on the side surface with respect to the display surface is the audio information output unit arranged This is not limited to the case where is a cartilage conduction vibration part. For example, the voice information output unit may be an air-conducting earphone and provided on a side surface with respect to the display surface. Further, the voice information output unit is a bone conduction vibration unit applied to a bone in front of the ear (zygomatic arch), a bone after the ear (mastoid), or a forehead, and is arranged on a side surface with respect to the display surface. Also good. Even in the case of these audio information output units, the arrangement on the side surface with respect to the display surface can prevent the display surface from coming into contact with the ears and cheeks when listening to the audio information, so that the advantage of preventing the contamination can be enjoyed. Even in these cases, when the arrangement of the earphone and the bone conduction vibration unit is limited to one side surface, the microphone can also be arranged on the side surface with respect to the display surface as in Example 12 to Example 14. Further, in the same manner as in Example 11 to Example 14, when talking with the earphone on the ear in the posture as shown in FIG. 21, or when talking with the bone conduction vibration unit on the bones around the ear In the above, by making the display surface a privacy protection display, it is possible to prevent the display including the privacy information from being seen by other persons on the front and rear or on the left and right.

  FIG. 26 is a system configuration diagram of Example 15 according to the embodiment of the present invention. The fifteenth embodiment is configured as a transmission / reception unit for a mobile phone, and forms a mobile phone system together with the mobile phone 1401. In the fifteenth embodiment, the system configuration is the same as that of the thirteenth embodiment in which the transmission / reception unit 1281 is separated from the mobile phone 1201 as shown in FIG. No description is given unless otherwise necessary. Note that the mobile phone 1401 is not limited to being specifically configured to be used in combination with a transmission / reception unit in the same manner as the mobile phone 1201 of the thirteenth embodiment. It may be configured as a general mobile phone having a distance communication function. In this case, the transmission / reception unit is configured as an accessory of such a general mobile phone 1401 in the same manner as in the thirteenth embodiment. Details of these two cases will be described later.

  The fifteenth embodiment differs from the thirteenth embodiment in that the transmission / reception unit is configured as a headset 1481 instead of the pencil type as in the thirteenth embodiment. The transmission / reception unit 1481 has a cartilage conduction vibration unit 1426 and a transmission unit 1423 having a piezoelectric bimorph element and the like, and a control unit 1439 including a power supply unit for the cartilage conduction vibration unit 1426 and the transmission unit 1423. And having the transmission / reception operation unit 1409 is the same as in the thirteenth embodiment. Furthermore, the transmission / reception unit 1481 has a short-range communication unit 1487 such as Bluetooth (registered trademark) that can wirelessly communicate with the mobile phone 1401 by the radio wave 1285, and the user's voice picked up from the transmission unit 1423 and the cartilage conduction The information on the contact state of the vibrating portion 1426 to the ear is transmitted to the mobile phone 1401 and the vibrating portion 1426 for cartilage conduction is vibrated based on the audio information received from the mobile phone 1401 in accordance with the thirteenth embodiment.

  Next, the configuration peculiar to the fifteenth embodiment will be described. The headset 1481 is attached to the right ear 28 by the ear hooking portion 1489. The headset 1481 has a movable part 1491 held by an elastic body 1473, and the cartilage conduction vibration part 1426 is held by the movable part 1491. In the state where the headset 1481 is attached to the right ear 28 by the ear hooking portion 1489, the cartilage conduction vibrating portion 1426 is configured to contact the tragus 32. The elastic body 1473 enables the movable portion 1491 to bend in the direction of the tragus 32, and also functions as a cushioning material for the cartilage conduction vibration portion 1426. From the mechanical shock applied to the headset 1481, The vibrating part 1426 for cartilage conduction is protected.

  In the state of FIG. 26, it is possible to listen to sound information by normal cartilage conduction. However, when sound information is difficult to hear due to environmental noise, it is bent by pushing the movable portion 1491 from the outside, and the vibration portion for cartilage conduction is used. By pressing 1426 more strongly against the tragus 32, the tragus 32 closes the ear hole. As a result, the ear plug bone conduction effect described in the other embodiments is produced, and voice information can be transmitted with a louder sound. Furthermore, environmental noise can be blocked by closing the ear hole with the tragus 32. Further, based on the mechanical detection of the bending state of the movable portion 1491, the phase of the information of the own voice picked up from the transmitting portion 1423 is inverted and transmitted to the vibration portion 1426 for cartilage conduction to cancel the own voice. Since the utility and the like have been described in other embodiments, the details are omitted.

  FIG. 27 is a system configuration diagram of Example 16 according to the embodiment of the present invention. Similarly to the fifteenth embodiment, the sixteenth embodiment is configured as a headset 1581 that forms a transmission / reception unit for the mobile phone 1401, and forms a mobile phone system together with the mobile phone 1401. Since the sixteenth embodiment has many points in common with the fifteenth embodiment, common portions are denoted by common numbers, and description thereof is omitted unless particularly necessary. As described in the fifteenth embodiment, the mobile phone 1401 may be either specially configured or configured as a general mobile phone. These two cases will be described later.

  Example 16 differs from Example 15 in that the movable part 1591 as a whole is elastic material (silicone rubber, a mixture of silicone rubber and butadiene rubber, natural rubber, or natural rubber having an acoustic impedance similar to that of the ear cartilage. It is made by a structure in which air bubbles are sealed. The cartilage conduction vibration portion 1526 having a piezoelectric bimorph element or the like is embedded in the movable portion 1591 in the same manner as in the eighth embodiment. With such a configuration, the movable portion 1591 can be bent to the tragus 32 side including the cartilage conduction vibration portion 1526 by its own elasticity. Although not illustrated for simplicity, circuit portions such as the cartilage conduction vibration unit 1526 and the control unit 1439 are connected by a connection line similar to the flexible connection line 769 in FIG.

  In Example 16, the movable part 1591 is in contact with the tragus 32 in the state shown in FIG. Conducted. The utility of this configuration is the same as that described in the fifth to tenth embodiments. Further, when it is difficult to hear sound information due to environmental noise, the movable part 1591 is bent from the outside by bending it, and the cartilage conduction vibration part 1526 is pressed against the tragus 32 more strongly, so that the tragus 32 blocks the ear hole. Try to close it. As a result, similar to the fifteenth embodiment, an ear plug bone conduction effect is produced, and voice information can be transmitted with a louder sound. Similarly to the fifteenth embodiment, the environmental noise can be blocked by closing the ear hole with the tragus 32. In addition, based on the mechanical detection of the bending state of the movable portion 1591, the phase of the information of one's own voice picked up from the transmitter 1423 is inverted and transmitted to the vibration portion 1526 for cartilage conduction, and the user's own voice can be canceled. Similar to Example 15.

  Furthermore, in Example 16, since the cartilage conduction vibration portion 1526 is embedded in the movable portion 1591, the elastic material constituting the movable portion 1591 is caused by the mechanical shock applied to the headset 1581 from the cartilage conduction vibration portion. It functions as a buffer material that protects 1526 and protects the cartilage conduction vibration part 1526 from mechanical impacts on the movable part 1591 itself.

  FIG. 28 is a block diagram of the sixteenth embodiment, and the same parts as those in FIG. In addition, since the configuration of the block diagram has many portions in common with the fourth embodiment, the corresponding portions are denoted by the same numbers as those portions. The description of the same or common parts is omitted unless particularly necessary. In the sixteenth embodiment, the reception processing unit 212 and the earphone 213 in FIG. 28 correspond to the reception unit 13 in FIG. 27, and the transmission processing unit 222 and the microphone 223 in FIG. 28 correspond to the transmission unit 23 in FIG. Equivalent to. In the same manner as in the fourth embodiment, the transmission processing unit 222 transmits a part of the operator's voice picked up from the microphone 223 to the reception processing unit 212 as a side tone, and the reception processing unit 212 receives from the telephone communication unit 47. By superimposing the side tone of the operator on the other party's voice and outputting it to the earphone 213, the balance between the bone conduction and the air conduction of the person's voice when the mobile phone 1401 is applied to the ear is made natural To be close.

  The block diagram of the sixteenth embodiment in FIG. 28 is different from the block diagram of the fourth embodiment in FIG. 8 in that the mobile phone 301 in the fourth embodiment in FIG. 8 is different from the mobile phone 1401 in the sixteenth embodiment in FIG. It is divided into the headset 1581 which makes | forms. That is, FIG. 28 corresponds to a block diagram when the mobile phone 1401 is specially configured to be used in combination with the headset 1581 in the sixteenth embodiment.

  More specifically, in FIG. 28, the output of the phase adjustment mixer 236 is wirelessly transmitted to the outside by a short-range communication unit 1446 such as Bluetooth (registered trademark). The short-range communication unit 1446 also inputs an audio signal received wirelessly from the external microphone to the transmission processing unit 222. Furthermore, although illustration and description are omitted in other embodiments, FIG. 28 shows a power supply unit 1448 having a storage battery that supplies power to the entire mobile phone 1401.

  On the other hand, the configuration of the headset 1581 includes a short-range communication unit 1487 that communicates with the short-range communication unit 1446 of the mobile phone 1401 using radio waves 1285 and a power supply unit 1548 that supplies power to the entire headset 1581. The power supply unit 1548 supplies power using a replaceable battery or a built-in storage battery. In addition, the control unit 1439 of the headset 1581 wirelessly transmits the voice picked up by the transmitter (microphone) 1423 from the short-range communication unit 1487 to the mobile phone 1401, and based on the voice information received by the short-range communication unit 1487. The cartilage conduction vibration unit 1526 is driven and controlled. Further, the control unit 1439 transmits the incoming call reception operation or the outgoing call operation by the operation unit 1409 from the short-range communication unit 1487 to the mobile phone 1401. The bending detection unit 1588 mechanically detects the bending state of the movable unit 1591, and the control unit 1439 transmits this bending detection information from the short-range communication unit 1487 to the mobile phone 1401. For example, the bending detection unit 1588 can be configured by a switch that is mechanically turned on when the bending angle reaches a predetermined angle or more. The control unit 239 of the mobile phone 1401 controls the phase adjustment mixer unit 236 based on the bending detection information received by the short-range communication unit 1446, and transmits its own information transmitted from the transmission unit (microphone) 1423 to the transmission processing unit 222. It is determined whether or not to add the signal of the waveform inverting unit 240 based on the voice to the voice information from the reception processing unit 212.

  FIG. 29 is a block diagram in the case where the mobile phone 1401 is configured as a general mobile phone and the headset 1581 is configured as an accessory in the embodiment 16 of FIG. 27, in order to avoid confusion with FIG. This will be described as Example 17. 29 has many configurations in common with FIG. 28, the same reference numerals are assigned to the same portions as in FIG. 28, and description thereof is omitted unless particularly necessary.

  As described above, in the seventeenth embodiment in FIG. 29, the mobile phone 1601 is configured as a general mobile phone having a short-range communication function such as Bluetooth (registered trademark). Specifically, the short-range communication unit 1446 inputs audio information from an external microphone similar to that input from the microphone 223 to the transmission processing unit 222 and audio information similar to that output to the earphone 213. Is output to the outside. The control unit 239 switches between audio information input / output from / to the outside through the short-range communication unit 1446 and the internal microphone 223 and earphone 213. As described above, in the seventeenth embodiment in FIG. 29, the functions of the sound quality adjusting unit 238, the waveform inverting unit 240, and the phase adjusting mixer unit 236 in the sixteenth embodiment in FIG. 28 are moved to the headset 1681 side.

  Corresponding to the above, the headset 1681 in the embodiment 17 of FIG. 29 differs from the embodiment 16 of FIG. 28 in the following points. The phase adjustment mixer unit 1636 is input with the received voice information received by the short-range communication unit 1487 under the control of the control unit 1639 of the headset 1681, so that the voice information from the waveform inversion unit 1640 can also be input. Composed. Then, the phase adjustment mixer unit 1636 mixes the received voice information from the waveform inversion unit 1640 with the received voice information as necessary, and drives the cartilage conduction vibration unit 1626. More specifically, a part of the operator's voice picked up from the microphone (microphone) 1423 is input to the sound quality adjustment unit 1638 and transmitted to the cochlea from the cartilage conduction vibration unit 1628 including the cartilage conduction vibration unit 1626. The sound quality of the voice is adjusted to a sound quality that approximates the operator's own voice that is transmitted from the vocal cords to the cochlea by internal conduction when the ear plug conduction effect occurs, and canceling both of them effectively. Then, the waveform reversing unit 1640 reverses the waveform of the voice whose sound quality has been adjusted in this way, and outputs the result to the phase adjustment mixer unit 1636 as necessary.

  A specific mixing control will be described. The phase adjustment mixer unit 1636 corresponds to a state in which the bending angle of the movable unit 1591 detected by the bending detection unit 1588 reaches a predetermined value or more, and the earlobe is blocked by the tragus pressed by this. When doing so, the output from the waveform reversing unit 1640 is mixed by an instruction from the control unit 1639 to drive the cartilage conduction vibration unit 1628. As a result, excessive one's own voice during the occurrence of the ear plug bone conduction effect is canceled, and the uncomfortable feeling is alleviated. At this time, the degree of cancellation is adjusted so that the voice corresponding to the side tone is left without being canceled. On the other hand, when the bend detection unit 1588 does not detect a bend greater than or equal to the predetermined value, it corresponds to a state in which the ear hole is not blocked by the tragus and the ear plug bone conduction effect does not occur. Based on the instruction from the unit 1639, the voice waveform inversion output from the waveform inversion unit 1640 is not mixed. As in the fourth embodiment, the positions of the sound quality adjusting unit 1638 and the waveform reversing unit 1640 may be reversed in the seventeenth embodiment shown in FIG. Furthermore, the sound quality adjustment unit 1638 and the waveform inversion unit 1640 may be integrated as functions within the phase adjustment mixer unit 1636. Note that the control unit 1639 transmits the incoming call reception operation or the outgoing call operation by the operation unit 1409 from the short-range communication unit 1487 to the mobile phone 1601 in the same manner as in the sixteenth embodiment.

  The block diagrams of FIGS. 28 and 29 are applicable not only to the configuration of the system diagram of FIG. 27 but also to the system diagram of Embodiment 15 of FIG. Further, if the bending detection unit 1588 is replaced with a press sensor 242 as shown in FIG. 8, the present invention can also be applied to the embodiment 13 of FIG. 24 or the embodiment 14 of FIG. However, in the case of translating to Example 13, when the transmission / reception unit 1281 is united with the cellular phone 1201 as shown in FIG. 24A, the cellular phone 1201 and the transmission / reception unit 1281 are provided with a contact portion for directly connecting them. . In the state of FIG. 24A, the wireless communication communication between the mobile phone 1201 and the transmission / reception unit 1281 by the short-range communication unit is automatically switched to communication via such a contact unit. Further, when rereading as the fourteenth embodiment, instead of the short-range communication unit, a connector contact for connecting both of them by wire is provided in the mobile phone 1301 and the transmission / reception unit 1381.

  FIG. 30 is a flowchart of the operation of the control unit 1639 of the headset 1681 in the seventeenth embodiment shown in FIG. The flow of FIG. 30 starts when the main power supply is turned on by the operation unit 1409, and initial startup and function check of each unit are performed in step S162. Next, in step S164, a short-range communication connection with the mobile phone 1601 is instructed, and the process proceeds to step S166. When short-range communication is established based on the instruction in step S164, headset 1681 is always connected to mobile phone 1601 unless the main power is turned off. In step S166, it is checked whether near field communication with the cellular phone 1601 has been established. If the establishment is confirmed, the process proceeds to step S168.

  In step S168, it is checked whether the incoming signal from the mobile phone 1601 has been transmitted through short-range communication. If there is an incoming call, the process proceeds to step S170 and the cartilage conduction vibration unit 1626 is driven to vibrate. This incoming vibration may be a frequency in the audible range, or may be a vibration in a low frequency range with a large amplitude at which vibration can be felt by the tragus 32. Next, in step S172, it is checked whether the incoming signal has been stopped by a call stop operation or the like on the side of the telephone call. If there is a reception operation, the process proceeds to step S176. On the other hand, if there is no reception operation in step S174, the flow returns to step S170. Thereafter, unless the incoming vibration of the cartilage conduction vibration unit 1626 stops or the reception operation is performed, the loop from step S170 to step S174 is repeated. .

  On the other hand, if an incoming signal is not detected in step S168, the process proceeds to step S178, and it is checked whether or not a one-touch call operation to the registered call destination has been performed by the operation unit 1409. When a call operation is detected, the process proceeds to step S180, where the call operation is transmitted to the mobile phone 1601, a call is made, and a signal to the effect that a telephone connection has been established is received from the other party. Check if it was transmitted from. If it is confirmed in step S180 that the telephone connection is established, the process proceeds to step S176.

  In step S176, the cartilage conduction vibration unit 1626 is turned on for receiving voice information, and in step S182, the microphone 1423 is turned on for transmitting, and the process proceeds to step S184. In step S184, it is checked whether or not bending of the movable portion 1591 is detected at a predetermined angle or more. When bending is detected, the process proceeds to step S186, where the waveform inversion signal of one's own voice is added to the cartilage conduction vibration unit 1626, and the process proceeds to step S188. On the other hand, when bending of a predetermined angle or more is not detected in step S184, the process proceeds to step S190, and the waveform inversion signal of the own voice is not added to the cartilage conduction vibration unit 1626, and the process proceeds to step S188. In step S188, it is checked whether or not a signal indicating that the call state has been cut off has been received from the mobile phone 1601, and if the call has not been cut off, the process returns to step S176 until the call cut is detected in step S188. Steps S176 to S188 are repeated. This corresponds to the occurrence and disappearance of the ear plug bone conduction effect based on the bending of the movable portion 1591 during a call.

  On the other hand, when it is detected in step S188 that a call disconnection signal has been received from the mobile phone 1601, the process proceeds to step S192, where reception by the cartilage conduction vibration unit 1626 is turned off and transmission by the microphone 1423 is turned off. The process proceeds to S194. In step S194, it is checked whether or not the no-call state continues for a predetermined time or more, and if applicable, the process proceeds to step S196. In step S196, a transition is made to a power saving standby state such as reducing the clock frequency to the minimum level necessary for maintaining the standby state of the short-range communication unit 1487, and an incoming signal is received from the mobile phone 1601 or the operation unit 1409 is issued. In response to the call operation, a process for enabling an interrupt for returning the short-range communication unit 1487 to the normal communication state is performed. After such processing, the process proceeds to step S198. On the other hand, if a no-call state for a predetermined time or longer is not detected in step S194, the process directly proceeds to step S198. If it is not possible to confirm the establishment of near field communication in step S166, or if no call operation is detected in step S178, or if it is not possible to confirm the establishment of the telephone connection in step S180, the process directly proceeds to step S198.

  In step S198, it is checked whether or not the main power supply is turned off by the operation unit 1409. If the main power supply off is detected, the flow ends. On the other hand, if main power off is not detected, the flow returns to step S166, and unless the main power is turned off, steps S166 to S198 are repeated to cope with various state changes of the headset 1681.

  Note that the flow of FIG. 30 is applicable not only to the configuration of the system diagram of FIG. 27 but also to the system diagram of Embodiment 15 of FIG. Further, if the “bending detection” in step S184 is replaced with the presence / absence detection of the “ear plug bone conduction effect” occurrence state in step S52 in FIG. 10, the embodiment 13 in FIG. 24 or the embodiment 14 in FIG. Applicable.

  FIG. 31 is a flowchart of the control unit of the headset configured to perform this in a software manner instead of the one in which the bending detection is performed by the mechanical switch in the embodiment 17 of FIG. In order to avoid this problem, a description will be given as Example 18. In FIG. 31, the same steps as those in FIG. 30 are denoted by the same step numbers, and the description thereof is omitted unless particularly necessary. In FIG. 31, different parts are indicated by thick frames and bold letters, and these parts will be mainly described. More specifically, in the eighteenth embodiment, on the premise that the cartilage conduction vibration unit 1626 is a piezoelectric bimorph element, a signal connecting the phase adjustment mixer unit 1636 and the cartilage conduction vibration unit 1626 according to the fourth embodiment in FIG. The signal appearing on the line is monitored, and the signal change appearing on the cartilage conduction vibration part (piezoelectric bimorph element) 1626 is detected by the distortion based on the operation impact at the moment of bending or returning from the bending of the movable part 1591. The bending state is detected by processing this signal change in software.

  Based on the above assumptions, FIG. 31 will be described with respect to differences from FIG. The same thing. If a telephone connection is established based on a reception operation for an incoming call or a response of the other party to a call, the process proceeds to step S176, and if there is no telephone connection, the process proceeds to step S198.

  Steps S <b> 202 to S <b> 210 are steps related to bending detection. When step S <b> 182 to step S <b> 202 are performed, first, an input terminal of the cartilage conduction vibration unit 1626 (a signal line connecting the phase adjustment mixer unit 1636 and the cartilage conduction vibration unit 1626) appears. Sampling the signal. In step S204, the cartilage conduction unit drive output from the control unit 1639 toward the phase adjustment mixer unit 1636 is sampled at the same timing. Next, in step S206, the difference between these sampling values is calculated. In step S208, it is detected whether the calculated difference is equal to or greater than a predetermined value. This function corresponds to the function of the pressure sensor 242 in FIG. 9, but the pressure sensor 242 in FIG. 9 continuously detects the pressed state, whereas the system in FIG. The change of the bending state is captured by the operation shock of.

  If it is detected in step S208 that a difference greater than a predetermined value has occurred between both sampling values, the process proceeds to step S210. At the stage of step S208, it is not known whether a difference of a predetermined value or more between the two sampling values is caused by bending or by returning from bending. However, in step S210, based on the difference occurrence history, after the cartilage conduction vibration unit 1626 is turned on in step S176, it is checked whether or not the difference has occurred an odd number of times. If it is an odd number, the process proceeds to step S186, and if it is an even number, the process proceeds to step S190. Since the movable portion 1591 bends or returns from the bend always occurs, whether or not the self-voice waveform inversion signal is added is switched every time there is an operation impact as described above. If the difference count is reversed due to a malfunction, the operation history 1409 can be used to reset the difference occurrence history.

  Step S212 collectively shows step S194 and step S196 in FIG. 30, and the contents are the same. As described above, in Example 18, as in Example 4 and the like, by detecting the bending of the movable part 1591 using the sensor function of the cartilage conduction vibration part 1626 itself, the effect of the ear plug bone conduction effect is achieved. The occurrence status is judged. The flow of FIG. 31 is applicable not only to the configuration of the system diagram of FIG. 27 but also to the system diagram of Embodiment 15 of FIG. Further, in the case where the cartilage conduction vibration part is held by an elastic body as in Examples 5 to 10, the ear of FIG. It is possible to adopt a method for detecting the occurrence of the plug effect.

  FIG. 32 is a system configuration diagram of Example 19 according to the embodiment of the present invention. The nineteenth embodiment is also configured as a transmission / reception unit for a mobile phone, and forms a mobile phone system together with the mobile phone 1401. In the nineteenth embodiment, the transmission / reception unit is configured as glasses 1781 as shown in FIG. Since the nineteenth embodiment has the same system configuration as that of the fifteenth embodiment, common portions are denoted by common numbers, and the configuration is the same as the fifteenth embodiment unless otherwise described. . Also in the nineteenth embodiment, the mobile phone 1401 is specially configured to be used in combination with the glasses 1781 constituting the transmission / reception unit, and is configured as a general mobile phone having a short-range communication function. Either may be sufficient. In the latter case, the glasses 1781 are configured as an accessory of the mobile phone 1401 in the same manner as in the fifteenth embodiment.

  In the nineteenth embodiment, as shown in FIG. 32, the movable portion 1791 is rotatably attached to the temple portion of the spectacles 1781. In the state shown in the figure, the cartilage conduction vibration portion 1726 is attached to the tragus 32 of the right ear 28. In contact. When the movable portion 1791 is not used, the movable portion 1791 can be rotated and retracted to a position along the vine of the glasses 1781 as indicated by a one-dot chain line 1792. Even in this retracted state, the cartilage conduction vibration portion 1726 can be vibrated at a low frequency, so that an incoming call can be detected by feeling the vibration of the vine of the glasses 1781 with the face. In addition, a transmitter 1723 is arranged in front of the vine of the glasses 1781. In addition, a control unit 1739 including a power supply unit is disposed on the vine portion of the glasses 1781 to control the cartilage conduction vibration unit 1726 and the transmission unit 1723. Further, a short-range communication unit 1787 such as Bluetooth (registered trademark) capable of wireless communication with the mobile phone 1401 and the radio wave 1285 is arranged on the vine portion of the glasses 1781, and the user's voice picked up from the transmitter unit 1723 is carried by the mobile phone. While transmitting to the telephone 1401, the cartilage conduction vibration unit 1726 can be vibrated based on the audio information received from the mobile phone 1401. Note that a transmission / reception operation unit 1709 is provided at the rear end of the temple of the glasses 1781. This position is a portion where the vine of the glasses 1781 hits the bone (mastoid portion) behind the ear 28, so that it is supported in the backed state. Operation can be performed easily. In addition, arrangement | positioning of said each element is not restricted above, For example, you may arrange | position all the elements or its part collectively to the movable part 1791 suitably.

  The movable portion 1791 has an elastic body 1773 in the middle thereof, and when sound information is difficult to hear due to environmental noise, the movable portion 1791 is bent from the outside by pushing the movable portion 1791 from the outside, and the vibration portion 1726 for cartilage conduction is more strongly heard. It is easy to allow the tragus 32 to close the ear hole by being pressed against the tragus 32. As a result, the ear plug bone conduction effect described in the other embodiments is produced, and voice information can be transmitted with a louder sound. In addition, based on the mechanical detection of the bending state of the movable unit 1791, the phase of the information of the own voice picked up from the transmission unit 1723 is inverted and transmitted to the vibration unit 1726 for cartilage conduction to cancel the own voice. These are the same as in Example 15.

  28 and 29 can be applied to the nineteenth embodiment by replacing “headset” with “glasses”. The flowcharts of FIGS. 30 and 31 are also applicable to the nineteenth embodiment.

  FIG. 33 is a system configuration diagram of Example 20 according to the embodiment of the present invention. The twentieth embodiment is also configured as a transmission / reception unit for a mobile phone, and forms a mobile phone system together with the mobile phone 1401. Since the system configuration of the twentieth embodiment is the same as that of the nineteenth embodiment of FIG. 32, common portions are denoted by the same reference numerals, and description thereof is omitted unless particularly necessary. Also in the twentieth embodiment, as in the nineteenth embodiment, the mobile phone 1401 is specially configured to be used in combination with the glasses 1881 that form the transmission / reception unit, and has a short-range communication function. Any of the cases where the mobile phone is configured may be used. In the latter case, the glasses 1881 are configured as an accessory of the mobile phone 1401 in the same manner as in the nineteenth embodiment.

  Example 20 differs from Example 19 in that the cartilage conduction vibration part 1826 is provided in an ear hooking part 1893 where the vine of the glasses 1881 hits the base of the ear 28. As a result, the vibration of the cartilage conduction vibration portion 1826 is transmitted to the outer side 1828 of the cartilage at the base of the ear 28, and air conduction sound is generated from the inner wall of the ear canal through the cartilage around the ear canal mouth and transmitted to the eardrum. A portion is transmitted directly through the cartilage to the inner ear. The outer side 1828 of the root of the ear 28 where the vine of the glasses 1881 hits is close to the inner ear canal opening, and is suitable for air conduction from the cartilage around the ear canal to the inside of the ear canal and for direct conduction to the inner ear through the cartilage.

  The ear hooking portion 1893 is further provided with an ear pressing detection portion 1888 at a portion corresponding to the back side of the earlobe. The ear press detection unit 1888 mechanically detects a state in which the earlobe is pressed by applying a palm to the ear 28 in order to shield external noise when it is loud, and the control unit 1739 detects the ear press detection information at a short distance. The data is transmitted from the communication unit 1787 to the mobile phone 1401. The ear press detection unit 1888 can be configured by a switch that is mechanically turned on when pressed by the back side of the earlobe, for example. The control unit 239 of the mobile phone 1401 (in the case of using the configuration of FIG. 28) controls the phase adjustment mixer unit 236 based on the bending detection information received by the short-range communication unit 1446, and the short-distance from the transmission unit (microphone) 1723. It is determined whether or not to add the signal of the waveform inverting unit 240 based on one's own voice transmitted to the transmission processing unit 222 via the communication unit 1446 to the voice information from the reception processing unit 212. In addition, the structure regarding the countermeasure at the time of this ear canal bone conduction effect generation can also be comprised like FIG. 29 similarly to Example 19. FIG.

  FIG. 34 is a side view of a main part of Example 21 according to the embodiment of the present invention. The twenty-first embodiment is also configured as a transmission / reception unit for a cellular phone, and forms a cellular phone system together with the cellular phone 1401 (not shown) in the same manner as the twentieth embodiment. Since the system configuration of the twenty-first embodiment is similar to that of the twenty-first embodiment of FIG. 33, common portions are denoted by common reference numerals, and description thereof is omitted unless particularly necessary. Specifically, the transmission / reception unit of the twentieth embodiment is configured as dedicated glasses, whereas the transmission / reception unit of FIG. 34 is a spectacle attachment 1981 that can be attached to the ear hooking portion 1900 of a normal spectacle vine. The difference is that it is configured as. The other configuration is the same as that of the embodiment 20 in FIG. In the twenty-first embodiment, similarly to the twentieth embodiment, the cellular phone 1401 (not shown) is specially configured to be used in combination with the eyeglass attachment 1981 that constitutes the transmission / reception unit, and the short-range communication function. Any of the cases where it is configured as a general mobile phone having In the latter case, the eyeglass attachment 1981 is configured as an accessory of the mobile phone 1401 in the same manner as in the twentieth embodiment.

  The eyeglass attachment 1981 is molded as a free-size elastic cover that can be put on the ear-hook portion 1900 of various sizes and shapes, and when the ear-hook portion 1900 is inserted from the opening of one end thereof, for cartilage conduction. The vibrating portion 1926 contacts the upper side of the ear hook 1900. This contact may be direct, or may be through an elastic film of the eyeglass attachment 1981. For this purpose, it is desirable to select an elastic body whose acoustic impedance is similar to that of ear cartilage. By the direct or indirect contact as described above, the vibration of the cartilage conduction vibration portion 1926 is transmitted to the ear hook portion 1900, and the vibration is transmitted to the outside of the cartilage at the base of the ear 28. Thus, air conduction sound is generated from the inner wall of the ear canal through the cartilage around the ear canal and transmitted to the tympanic membrane, and part of it is directly transmitted to the inner ear through the cartilage.

  The transmission unit 1723, the control unit 1739, the short-range communication unit 1787, the transmission / reception operation unit 1709, and the ear press detection unit 1888 provided in the glasses 1881 in the twentieth embodiment are respectively the glasses attachments in the embodiment 21 of FIG. Although it is arranged in 1981, its function is the same and the description is omitted. Although not shown, for example, when the eyeglass attachment 1981 is put on the right ear hook portion 1900, a dummy cover molded with an elastic body having the same outer shape, material, and weight is provided for the left ear hook portion. It is possible to keep the left and right balance when wearing glasses. Since the eyeglass attachment 1981 and the dummy cover are formed of an elastic body, the eyeglass attachment 1981 and the dummy cover can be arbitrarily attached to either of the left and right ear-hanging portions by slight deformation. For example, contrary to the above, the eyeglass attachment 1981 can be put on the left ear hook and the dummy cover can be put on the right ear hook. Therefore, it is not necessary to stock the glasses attachments 1981 for the right ear and the left ear.

  FIG. 35 is a top view of Example 22 according to the embodiment of the present invention. The twenty-second embodiment is also configured as a transmission / reception unit for a mobile phone, and forms a mobile phone system together with the mobile phone 1401 (not shown) as in the twenty-first embodiment. Since the system configuration of the twenty-second embodiment is similar to that of the twenty-first embodiment of FIG. 34, common portions are denoted by common numbers, and description thereof is omitted unless particularly necessary. Similarly to Example 21, the transmission / reception unit of Example 22 is a spectacle attachment 2081 molded as a free-size elastic cover that can be put on the ear-hook portion 1900 of various sizes and shapes in normal glasses. Composed.

  The twenty-second embodiment of FIG. 35 differs from the twenty-first embodiment of FIG. 34 in that each component of the transmission / reception unit that is centrally arranged in the eyeglass attachment 1981 that covers the one ear hook 1900 in the twenty-first embodiment. Is distributed in the left and right ear hooks 1900. Specifically, the eyeglass attachment 2081 of Example 22 includes a right elastic body cover 2082, a left elastic body cover 2084, and a glass cord / combination cable 2039 that connects these cables so that they can communicate with each other by wire. Each component is distributed. For convenience of explanation, the elastic body cover 2082 is used for the right ear and the elastic body cover 2084 is used for the left ear. is there.

  In the above basic configuration, the right elastic body cover 2082 is provided with a cartilage conduction vibration unit 1926, a transmission / reception operation unit 1709, and an ear press detection unit 1888. As a result, the vibration of the cartilage conduction vibration part 1926 is transmitted to the cartilage around the ear canal opening via the ear hooking part 1900 in the same manner as in Example 21, and air conduction sound is generated from the inner wall of the ear canal and transmitted to the eardrum. At the same time, a part is transmitted directly to the inner ear through the cartilage.

  On the other hand, the left elastic cover 2084 is provided with a transmitter 1723, a controller 1739, and a short-range communication unit 1787. The glass cord / cable 2039 is designed to be a glass cord that is worn around the neck when the glasses are removed. Functionally, the cable 2039 is distributed on the right elastic cover 2082 and the left elastic cover 2084. Wiring connecting each component of the receiver unit passes. Further, the right elastic body cover 2082 and the left elastic body cover 2084 are connected by the glass cord / cable 2039 to prevent one of them from being lost when removed from the glasses.

  FIG. 36 is a block diagram of Example 23 according to the embodiment of the present invention. In the same manner as the nineteenth or twentieth embodiment, the twenty-third embodiment includes glasses 2181 configured as a transmission / reception unit for a cellular phone, and forms a cellular phone system together with the cellular phone 1401 (not shown). Further, in the twenty-third embodiment, as in the twenty-second embodiment, each component as a transmission / reception unit is dispersedly arranged in the right temple portion 2182 and the left temple portion 2184. Each component and its function can be understood in accordance with the block diagram of the embodiment 17 in FIG. 29 and the top view of the embodiment 22 in FIG. 35. The description is omitted unless necessary. In Example 23 as well, the vibration of the cartilage conduction vibration portion 1826 disposed on the right temple portion 2182 is transmitted to the outside of the cartilage at the base of the ear 28, and this causes vibration generated from the inner wall of the ear canal by vibrating the cartilage around the mouth of the ear canal. The conduction sound is transmitted to the eardrum and a part of the cartilage conduction is transmitted directly to the inner ear through the cartilage.

  Example 23 in FIG. 36 further has a configuration for visualizing a three-dimensional (3D) image received from the mobile phone 1401 in the lens unit 2186. The lens portion 2186 of the glasses 2181 is provided with the original right lens 2110 and left lens 2114 of the glasses, and functions as normal glasses. Further, when the short-range communication unit 1787 receives 3D image information from the mobile phone 1401, the control unit 1639 instructs the 3D display driving unit 2115 to display the 3D display driving unit 2115, and the 3D display driving unit 2115 based on this displays the right display unit 2118. The left display unit 2122 displays a right eye image and a left eye image, respectively. These images are imaged on the retina of the right eye and the left eye by the right eye light guiding optical system 2129 and the left eye light guiding optical system 2141 which are formed of an imaging lens and a half mirror, respectively, so that a 3D image can be viewed. This 3D image will appear in a form that is synthesized or superimposed on the raw image entering the retina from the right lens 2110 and the left lens 2114.

  FIG. 37 is a system configuration diagram of Working Example 24 according to the embodiment of the present invention. The twenty-fourth embodiment is also configured as a transmission / reception unit for a mobile phone, and forms a mobile phone system together with the mobile phone 1401. The transmission / reception unit of the twenty-fourth embodiment is configured as an ear hook unit 2281 employed in a hearing aid or the like. However, except for this point, the system configuration is the same as that of the twenty-second embodiment of FIG. Are numbered in common and will not be described unless otherwise required. Also in the twenty-fourth embodiment, as in the twenty-fourth embodiment, the mobile phone 1401 has a short-range communication function when specifically configured to be used in combination with the ear hook unit 2281 that forms the transmission / reception unit. Any of the cases where it is configured as a general mobile phone may be used. In the latter case, the ear hook unit 2281 is configured as an accessory of the mobile phone 1401 in the same manner as in the twentieth embodiment.

  In the twenty-fourth embodiment, the cartilage conduction vibrating portion 2226 is disposed at a position corresponding to the rear portion 1828 of the cartilage at the base of the ear 28. As a result, in the same manner as in Example 20, the vibration of the cartilage conduction vibration part 2226 is transmitted to the outer side 1828 of the cartilage at the base of the ear 28 and generates air conduction sound from the inner wall of the ear canal via the cartilage around the mouth of the ear canal. In addition to being transmitted to the eardrum, a part is transmitted directly to the inner ear through the cartilage. The outer side 1828 of the cartilage at the base of the ear 28 is close to the inner ear canal, and is suitable for generating air conduction from the cartilage around the ear canal to the inside of the ear canal and for direct conduction to the inner ear through the cartilage. When the transmission / reception unit is configured as the ear hook unit 2281 as in the twenty-fourth embodiment, the degree of freedom of arrangement of the cartilage conduction vibration unit 2226 for contacting the outer side 1828 of the cartilage at the base of the ear 28 is great. The cartilage conduction vibration part 2226 can be arranged at an optimum position in consideration of the mounting layout and vibration transmission effect on the transmission / reception unit configuration. Therefore, in the twenty-fourth embodiment, as in the twenty-fourth embodiment, an arrangement in which the vibrating portion 2226 for cartilage conduction hits the upper portion of the outer side 1828 of the cartilage at the base of the ear 28 may be adopted.

  As in the case of the glasses 1881 of the twentieth embodiment, the ear hook unit 2281 is provided with a transmission unit 1723, a control unit 1739, a near field communication unit 1787, a transmission / reception operation unit 1709, and an ear press detection unit 1888. However, the function is common and the explanation is omitted. In the case of the ear hook unit 2281 of Example 24, the transmitter 1723 is disposed in front of the ear.

  FIG. 38 is a block diagram of Example 25 according to the embodiment of the present invention. Example 25 is common to Examples 20 to 23 in that the vibration parts 2324 and 2326 for cartilage conduction are arranged on the ear hooking part of the eyeglass-type device and the vibration is transmitted to the outside of the cartilage at the base of the ear 28. However, it is configured as an ornamental eyeglass 2381 for a 3D television, not a transmission / reception unit for a mobile phone, and forms a 3D television viewing system together with the 3D television 2301. In the twenty-fifth embodiment, stereo audio information can be viewed, and the vibration of the right ear cartilage conduction vibration portion 2324 arranged in the right temple 2382 is transmitted to the outside of the right ear root cartilage via the contact portion 2363. The air conduction sound generated from the inner wall of the ear canal is transmitted to the right eardrum by vibrating the cartilage around the mouth of the ear canal, and a part of the cartilage conduction is directly transmitted to the right inner ear through the cartilage. Similarly, the vibration of the left ear cartilage conduction vibration portion 2326 arranged in the left temple portion 2384 is transmitted to the outside of the cartilage at the base of the left ear via the contact portion 2364, which vibrates the cartilage around the ear canal. As a result, air conduction sound generated from the inner wall of the ear canal is transmitted to the left eardrum, and part of the cartilage conduction is directly transmitted to the left inner ear through the cartilage.

  Note that the viewing glasses 2381 are configured so that even a person wearing normal glasses can wear them from above. In this case, the vibrations of the right ear cartilage conduction vibration unit 2324 and the left ear cartilage conduction vibration unit 2326 are the same. It is transmitted to the left and right ear cartilage in direct contact with each other via the contact portions 2363 and 2364, and is also transmitted to the left and right vine ear hook portions of normal glasses, respectively, via this ear hook portion. And indirectly transmitted to the cartilage at the base of the ear. The contact portions 2363 and 2364 are configured to generate a suitable cartilage conduction to the cartilage at the base of the ear when the naked eye person wears the viewing glasses 2381 directly or when wearing from the top of normal glasses. The This will be described later.

  The 3D television 2301 generates an audio signal from the stereo audio signal unit 2331 based on the control of the control unit 2339, and the infrared communication unit 2346 transmits the audio signal to the infrared communication unit 2387 of the viewing glasses 2381 using infrared rays 2385. The control unit 2339 of the viewing glasses 2381 outputs left and right audio signals from the right audio driving unit 2335 and the left audio driving unit 2336 based on the received audio signal, and the right ear cartilage conduction vibration unit 2324 and the left ear cartilage conduction vibration. The portion 2326 is vibrated. The infrared communication unit 2387, the control unit 2339, the right audio driving unit 2335, the left audio driving unit 2336, the shutter driving unit 2357, the right shutter 2358, and the left shutter 2359, which will be described later, are arranged in the glasses main unit 2386 together with the power source unit 2348. Has been.

  On the other hand, the 3D television 2301 sends the video signal of the video signal unit 2333 to the display driver 2341 based on the control of the control unit 2339, and displays a 3D image on the 3D screen 2305 including a liquid crystal display unit. The control unit 2339 further generates a synchronization signal from the 3D shutter synchronization signal unit 2350 in synchronization with the 3D image display, and the infrared communication unit 2346 transmits this synchronization signal to the infrared communication unit 2387 of the viewing glasses 2381 using infrared rays 2385. To do. The control unit 2339 of the viewing glasses 2381 controls the shutter driving unit 2357 based on the received synchronization signal, and opens the right shutter 2358 and the left shutter 2359 alternately. As a result, the right-eye image 2360 and the left-eye image 2362 displayed alternately on the 3D screen 2305 are incident on the right eye and the left eye in synchronization. Thus, in Example 25, the stereo audio signal for driving the cartilage conduction vibration unit and the 3D shutter synchronization signal are transmitted by infrared communication between the infrared communication units 2346 and 2387. Both these signals are transmitted in parallel by time division or synthesis. Note that these communications are not limited to infrared communications, and may be short-range wireless communications as in other embodiments.

  FIG. 39 is a cross-sectional view of an essential part of the 25th embodiment, in which a cross section of the right vine portion 2382 is shown in a state in which viewing glasses 2381 are worn after wearing normal glasses. FIG. 39A is a cross section of the right temple 2382 regarding the embodiment 25, and FIG. 39B shows a cross section of the modification. First, FIG. 39A will be described. A contact portion 2363 is provided at a portion of the right temple portion 2382 that hangs on the ear 28 below. The contact portion 2363 is made of an elastic body whose acoustic impedance approximates that of the ear cartilage, and the right ear cartilage conduction vibration portion 2324 is held by the right temple portion 2382 in a form wrapped therein. Further, the cross section of the contact portion 2363 is provided with a groove for fitting the ear hook portion 2300 of a normal spectacle vine as is apparent from FIG. As a result, the right heel portion 2382 of the viewing spectacles 2381 and the ear hook portion 2300 of the normal eyeglass vine are reliably contacted, and the contact portion between the right heel portion 2382 and the ear hook portion 2300 is made elastic by the contact portion 2363. Prevent vibrations due to vibration. In the state of FIG. 39 (A), the vibration of the right ear cartilage conduction vibration portion 2324 is transmitted to the outer side 1828 of the root cartilage of the right ear 28 through the contact portion 2363 and is usually Is transmitted to the ear hooking portion 2300 of the right vine of the eyeglasses and indirectly transmitted to the outer side 1828 of the cartilage at the base of the ear 28 via the ear hooking portion 2300.

  On the other hand, when a naked eye person directly wears the viewing glasses 2381, the entire contact portion 2363 directly contacts the outer side 1828 of the cartilage at the base of the right ear 28, and the vibration of the cartilage conduction vibration portion 2324 for the right ear is vibrated. introduce. Since the outside of the contact portion 2363 is chamfered, the right heel portion 2382 is hung on the ear 28 without a sense of incongruity even in this case.

  Next, in the modification of FIG. 39B, as is clear from the cross-sectional view, the contact portion 2363 is formed on the portion of the right temple portion 2382 that hangs on the lower ear 28 in the same manner as in FIG. Is provided. Similarly to FIG. 39A, the contact portion 2363 is made of an elastic body whose acoustic impedance approximates that of the ear cartilage, and the right ear cartilage conduction vibration portion 2324 is wrapped in the right temple portion 2382. Is retained. As is clear from FIG. In the modified example, the cross-sectional shape of the contact portion 2363 is different, and a concave slope is provided instead of the groove. The contact portion of the right temple 2382 and the ear hooking portion 2300 is prevented from wobbling due to vibration due to the elasticity of the contact portion 2363. In the state of FIG. 39 (B), the vibration of the right ear cartilage conduction vibration portion 2324 is transmitted to the outer side 1828 of the root cartilage of the right ear 28 through the contact portion 2363 and is usually Is transmitted to the ear hooking portion 2300 of the right vine of the eyeglasses and indirectly transmitted to the outer side 1828 of the cartilage at the base of the ear 28 via the ear hooking portion 2300.

  On the other hand, when a naked eye person directly wears the viewing glasses 2381, the entire contact portion 2363 directly contacts the outer side 1828 of the cartilage at the base of the right ear 28, and the vibration of the cartilage conduction vibration portion 2324 for the right ear is vibrated. introduce. The outside of the contact portion 2363 is chamfered even in the modified example of FIG. 39B, and the right heel portion 2382 is hung on the ear 28 without a sense of incongruity even when the viewing glasses 2381 are directly worn. As apparent from FIG. 39 (B), in cartilage conduction, it is important to contact with the ear cartilage below or outside the eyeglass vine, not the facial bone inside the eyeglass vine, and the shape of the contact portion Is determined for this purpose.

  As described above, in the examples 20 to 25, the vibration of the cartilage conduction vibration part 2324 is transmitted to the outside of the cartilage at the base of the ear, which is generated from the inner wall of the ear canal by vibrating the cartilage around the ear canal. The conduction sound is transmitted to the eardrum and a part of the cartilage conduction is transmitted directly to the right inner ear through the cartilage. Therefore, good conduction can be obtained by contact with the outer side of the ear cartilage only by wearing the glasses in a normal state. On the other hand, in the case of the conventional bone conduction, it is necessary to pinch the bone in front of or behind the ear with the inner part of the spectacles, which is painful and cannot withstand long-time use. In the present invention, there is no such problem, and audio information can be heard comfortably with a feeling of use similar to that of normal glasses.

  Various features of each embodiment described above are not limited to individual embodiments, and can be appropriately replaced or combined with features of other embodiments. For example, in the description of Example 21 in FIG. 34, it is assumed that a dummy cover is put on the ear hooking portion of the other crane. However, a pair of the configurations shown in FIG. Then, it becomes possible to listen to the stereo audio signal as in the embodiment 25 of FIG. At this time, it is possible to connect the two by wireless communication, but it is also possible to connect them by a glass cord / cable as in Example 22 of FIG. Regarding the characteristics of the glass cord, in the twenty-first embodiment, the configuration shown in FIG. 34 and the dummy cover may be connected by a glass cord to prevent loss. In addition, regarding the feature of the stereo, the embodiment 23 of FIG. 36 does not distribute the constituent elements to the left and right cranes in the same manner as described above, but prepares two sets of necessary constituent elements and positions them on the left and right temple parts, respectively. If configured to do so, it becomes possible not only to make the video 3D but also to listen to the stereo audio signal as in the 25th embodiment of FIG. At this time, with reference to the embodiment 25, a part of the left and right components (for example, at least the control unit and the power source) can be appropriately shared.

  In the above embodiment, the utility of the present invention has been described by taking a mobile phone and its transmission / reception unit or 3D television viewing glasses as an example, but the advantages of the present invention are not limited to this, and the other embodiments Can be used. For example, the various features of the present invention described above are also effective when implemented in a hearing aid.

  The various features of each embodiment described above are not limited to individual embodiments, and can be implemented in various embodiments modified as long as the advantages of the features can be enjoyed. For example, FIG. 40 is a perspective view showing a modification of the tenth embodiment in FIG. Also in this modified example, as in FIG. 19, the cartilage conduction vibration source 925 made of a piezoelectric bimorph element or the like serves as the cartilage conduction vibration source, and also serves as a drive source for the receiver that generates sound waves transmitted to the eardrum by air conduction. . However, in the modification of FIG. 40, the cartilage conduction vibration source 925 itself extends to the side of the mobile phone 901, and vibrates the right end 224 and the left end 226 thereof. Accordingly, in the same manner as in FIG. 19, the sound can be heard by cartilage conduction by bringing one of them into contact with the tragus. In addition, the cartilage conduction vibration source 925 does not vibrate only at the right end 224 and the left end 226 but vibrates as a whole. Accordingly, as in FIG. 19, voice information can be transmitted wherever the inner upper edge of the mobile phone 901 is brought into contact with the ear cartilage. It is to be noted that a cartilage conduction output unit 963 made of a material whose acoustic impedance approximates that of the ear cartilage is arranged in front of the cartilage conduction vibration source 925 as in FIG.

  Moreover, the following modifications are possible for the embodiment 23 of FIG. That is, in Example 23, the transmission unit 1723 is configured with a normal air conduction microphone. However, instead of this, the transmission unit 1723 may be configured with a bone conduction microphone (a bone conduction contact microphone or pickup). It becomes possible to selectively pick up the voice of the sender without picking up the noise under noise. Furthermore, it is also possible to send a voice with a low voice that does not bother the surroundings. The eyeglass vine is generally in natural contact with the bone in front of the ear (the zygomatic arch or part of the temporal bone above the zygomatic arch) or the bone behind the ear (temporal mastoid process). Therefore, with the aid of FIG. 36, the transmission part 1723 constituted by the bone-conduction contact type microphone is arranged in the contact part with the bone as described above in the left temple part 2184 of the spectacles, thereby transmitting the bone transmission. It is possible to pick up the person's voice. In addition, as shown in FIG. 36, by distributing the speech transmission unit 1723 composed of the cartilage conduction vibration unit 1826 and the bone-conduction contact-type microphone to the left and right vines 2182 and 2184, the vibration from the cartilage conduction vibration unit 1826 is transmitted. Picking up a bone-conduction contact microphone can be prevented.

  In Example 23 of FIG. 36 or the above-described modification, it is possible to omit the configuration related to 3D display from the lens unit 2186 and to have a normal spectacle configuration including only the right lens 2110 and the left lens 2114. is there.

  On the other hand, the following modified example is also possible for the embodiment 25 of FIG. That is, since Example 25 is configured as viewing glasses 2381, the sound source of the stereo audio information is in the 3D television 2301, and the right ear cartilage conduction vibration unit 2324 and the left are based on the audio signal received by the infrared communication unit 2387. The ear cartilage conduction vibration portion 2326 is vibrated. However, instead of this, a stereo audio signal part that is a sound source part of stereo audio information and an audio memory that provides data to the stereo audio signal part are used as one or both of the glasses main part 2386 or the right temple part 2382 and the left temple part 2384 in FIG. If it is configured to be distributed and built in, the present invention can be configured as an independent portable music player. In order to understand the configuration of such a modification example with the aid of FIG. 38, the stereo audio signal unit and the audio memory that provides data to the stereo audio signal unit are included in the control unit 2339. In the case of this modification, since cooperation with the 3D television 2301 is unnecessary, in FIG. 38, instead of the right shutter 2358, the left shutter 2359, and the shutter drive unit 2357, the main spectacle part 2386 is the same as that in the example 23 of FIG. Such a normal eyeglass right lens and left lens are arranged.

  Further, in the case of the modified example in which the right lens and the left lens are arranged in the spectacle main part 2386 as described above to obtain normal spectacles, the control unit, the audio driving unit, the infrared communication unit, the power source unit, etc. As for each component arranged in the main portion 2386, as shown in the embodiment 23 of FIG. 36, the size of the spectacle main portion 2386 is prevented from being increased by appropriately distributing and arranging the right and left temple portions. It may be. Note that the infrared communication unit 2387 in the modified example has a function of inputting sound source data from an external sound source data holding device such as a personal computer. The infrared communication unit 2387 also performs volume control by the right ear cartilage conduction vibration unit 2324 and the left ear cartilage conduction vibration unit 2326, and adjusts the balance of the left and right vibration outputs by a remote controller at hand. It can function as a wireless communication unit. Furthermore, when the portable music player is linked with a mobile phone, the mobile phone audio information can be received. In this case, if the portable music player is provided with an air conduction microphone or a bone conduction microphone, the portable music player can also function as an external transmission / reception device of a cellular phone.

  The arrangement of the components on the spectacle main part 2386, the right temple part 2382, and the left temple part 2384 is not limited to the above modification. For example, even in the case of the viewing glasses 2381 itself in the embodiment 25 of FIG. Further, it may be appropriately arranged on the left temple 2384.

  FIG. 41 is a perspective view of Example 26 according to the embodiment of the present invention, which is configured as a mobile phone. A mobile phone 2401 according to the twenty-sixth embodiment is a so-called smart phone having a large screen display unit 205 having a GUI function, which is an integrated type having no movable parts, similarly to the modification of the tenth embodiment shown in FIG. It is configured. And since there are many common points in the structure, the same number is attached | subjected to a corresponding part, and description is abbreviate | omitted. As in the tenth embodiment and its modifications, in the twenty-sixth embodiment, the “upper portion” does not mean the separated upper portion, but means the upper portion of the integrated structure.

  The difference between the twenty-sixth embodiment and the modification of the tenth embodiment shown in FIG. 40 is that the vibration of the cartilage conduction vibration source 925 is also used as a vibration source that creates a feedback feeling of the touch operation in the touch panel function of the large screen display unit 205. Is a point. More specifically, a vibration isolation material 2465 such as vinyl or urethane is provided between the cartilage conduction vibration source 925 and the configuration below it (large screen display unit 205). Due to the difference, etc., an audio signal due to cartilage conduction is not easily transmitted to the large screen display unit 205 or the like. On the other hand, when any input by the touch panel function is accepted by touching the large screen display unit 205, the cartilage conduction vibration source 925 vibrates at a low frequency below the audible range in order to feed back the input to the touched finger. Be made. Since the vibration frequency is selected to be substantially the same as the resonance frequency of the vibration isolator 2465, the vibration isolator 2465 is resonated by the vibration of the cartilage conduction vibration source 925, and this is transmitted to the large screen display unit 205. It is done. Thus, the vibration isolator 2465 that prevents vibration in the voice region functions as a vibration transmission material for the feedback low-frequency vibration. As a result, the low-frequency vibration is transmitted to the finger touching the large screen display unit 205, and it is possible to know that the touch input has been accepted. In order to prevent the impact of the touch operation itself from being confused with the feedback vibration in response thereto, the cartilage conduction vibration source 925 is provided with a predetermined delay from the moment of the touch, and the feedback vibration is performed after the touch impact is settled.

  In the twenty-sixth embodiment, an operation button 2461 is provided and used for an operation of turning on and off the touch panel function of the large screen display unit 205. In the twenty-sixth embodiment, for simplification of illustration, the cartilage conduction output unit 963 provided in the modification of the tenth example shown in FIG. 40 is omitted, but it is optional to provide this. .

  FIG. 42 is a block diagram of the twenty-sixth embodiment. The same parts as those in FIG. Further, the configuration of the block diagram of FIG. 42 has many common points with the block diagram of the fourth embodiment in FIG. 8, and the configuration of the main part conceptual block diagram in FIG. The same number is attached | subjected about the structure of and description is abbreviate | omitted.

  The large screen display unit 205 in FIG. 42 shows a touch panel 2468 and a touch panel driver 2470 that is driven by the control unit 2439 to drive the touch panel 2468. However, this is not unique to the twenty-sixth embodiment. The large screen display unit 205 is common to other embodiments having a touch panel function, and in the other embodiments, illustration is omitted to avoid complexity. In FIG. 42, the vibration isolator 2465 is shown in the portions of the cartilage conduction vibration source 925 and the touch panel 2468, respectively, but this is merely such a depiction for the convenience of the space shown in the block diagram. The vibration isolator 2465 is the same, and does not mean that it is separated and provided at the positions of the cartilage conduction vibration source 925 and the touch panel 2468, respectively. That is, FIG. 42 shows that the vibration isolator 2465 resonates due to the low frequency vibration of the cartilage conduction vibration source 925 and is transmitted to the touch panel 2468.

  As shown in FIG. 42, in the twenty-sixth embodiment, a low frequency source 2466 that generates a drive signal having a frequency substantially matching the resonance frequency of the vibration isolator 2465 is provided. , When a finger touch is detected and an input is received, a low frequency output from the low frequency source 2466 is instructed after a predetermined delay. The phase adjustment mixer 2436 drives the cartilage conduction vibration source 925 based on a signal from the telephone function unit 45 in a call state, but outputs a signal from the telephone function unit 45 in a non-call operation state in which the touch panel 2468 is operated. Instead, the cartilage conduction vibration source 925 is driven based on the signal from the low frequency source 2466. Note that the phase adjustment mixer unit 2436 blocks the signal from the low-frequency source 2466 in the call state.

  The function of the control unit 2439 in FIG. 42 according to the twenty-sixth embodiment can use the flowchart of the fourth embodiment in FIG. The combined use of the cartilage conduction vibration source 925, which is a feature of Example 26, with the touch operation feedback touch vibration source can be understood as a detailed function of step S42 in FIG.

  FIG. 43 shows details of step S42 of FIG. 10 as described above. When the flow starts, it is first checked in step S222 whether a non-call operation has been performed. This step is the same as step S6 in the embodiment 1 of FIG. 4, and checks whether there is a non-call operation such as mail operation, Internet operation, other settings, and operations that do not use radio waves such as downloaded games. To do. If these operations are performed, the process proceeds to step S224 to check whether or not the touch panel 2468 is in the insensitive state. If not in the insensitive state, the cartilage conduction vibration unit including the cartilage conduction vibration source 925 is turned on in step S226. On the other hand, if it is detected in step S224 that the touch panel 2468 is in the insensitive state, it means that the non-call operation is performed by the operation button 2461. Therefore, the process proceeds to step S228, and the button setting corresponding to the operation is performed. Process. Next, in step S230, it is checked whether or not the touch panel 2468 has been enabled by button operation. If applicable, the process proceeds to step S226. It should be noted that if the non-call operation is not detected in step S222, or if the valid setting of the touch panel 2468 is not detected in step S230, the flow is immediately terminated.

  When the cartilage conduction vibration unit is turned on in step S226, the flow proceeds to step S232, the phase adjustment mixer unit 2436 is controlled to cut off the output from the telephone function unit 45, and the output of the low frequency source 2466 is transmitted to the cartilage conduction in step S234. It connects to the vibration source 925 and it reaches to step S236. In step 236, it is checked whether or not there is a touch panel operation. If there is an operation, the process proceeds to step S238 to perform a response process in accordance with the operation. Then, the process proceeds to step S240, a predetermined delay time (for example, 0.1 second) is set, and the process proceeds to step S242. In step S242, a low frequency is output from the low frequency source 2466 for a predetermined time (for example, 0.5 seconds), the operation feeling is fed back to the operated finger, and the process proceeds to step S244.

  In step S244, it is checked whether or not the touch panel 2468 has been in a no-operation state for a predetermined time (for example, 3 seconds) after the last touch panel operation. If not, the process returns to step S236. Hereinafter, as long as the operation of the touch panel 2468 continues within a predetermined time, the steps S236 to S244 are repeated to continue the touch input by the touch panel and the operation feeling feedback by the cartilage conduction vibration source 925.

  On the other hand, when it is detected in step S244 that the touch panel 2468 has not been operated for a predetermined time or longer, the process proceeds to step S246 to turn off the cartilage conduction vibration unit, and the phase adjustment mixer unit 2436 is controlled in step S248. Then, the output from the telephone function unit 45 is connected to the cartilage conduction vibration source 925 and the output of the low frequency source 2466 is cut off in step S250, and the flow is terminated for the time being. Thereafter, the flow is executed according to FIG. 10, and if a call is not detected in step S44 of FIG. 10, the process immediately proceeds to step S34, and if the main power is not turned off, the flow returns to step S42. Resume. Therefore, even if the predetermined time elapses during the operation of the touch panel and the flow of FIG. 43 is finished from step 244, the flow quickly reaches step 236, and the touch of touch input by the touch panel input and the cartilage conduction vibration source 925 can be continued. it can.

  The implementation of the present invention is not limited to the above-described embodiments, and various modifications can be made. For example, the vibration isolator 2465 according to the twenty-sixth embodiment is not limited to a material having a function of a bandpass filter that transmits vibration at a resonance frequency, and blocks vibrations of a predetermined frequency or more from the telephone function unit 45 in the voice signal region. In addition, a material having a function of a low-pass filter that transmits vibrations of the low frequency source 2466 for touch operation feedback in a lower frequency region may be used.

  Next, Example 27 of the present invention will be described with reference to FIGS. 41 to 43 in Example 26. FIG. In this case, “touch panel 2468” in FIG. 42 is read as “motion sensor 2468”, and “touch panel driver 2470” is read as “motion sensor driver 2470”. In the twenty-seventh embodiment, when the cartilage conduction vibration source 925 is also used for the touch operation in the GUI function of the large screen display unit 205 as in the twenty-sixth embodiment, this is used as a low-frequency output element for touch feeling feedback. In addition, it is configured to be used as an impact input element that detects a touch on the mobile phone 2401. For this purpose, in Example 27, the cartilage conduction vibration source 925 is constituted by a piezoelectric bimorph element. A specific configuration for using the piezoelectric bimorph element as an impact input element can be configured by using the block diagram of the fourth embodiment described with reference to FIG. 9 and the flowchart of the eighteenth embodiment described with reference to FIG. 31.

  More specifically, the GUI function of the large screen display unit 205 in the twenty-seventh embodiment is not a touch-type touch panel, but a motion sensor 2468 that detects the movement of the finger in the vicinity of the large screen display unit 205 as described above. It is configured using. Then, the impact detection function of the cartilage conduction vibration source 925 including a piezoelectric bimorph element is used as an impact sensor for detecting a finger touch (corresponding to “click” of a mouse or the like) for determining a function selected without contact. . More specifically, for example, scrolling and icon selection on the large screen display unit 205 are performed by detecting the movement of a non-contact finger, and touch impact on the mobile phone 2401 corresponding to the “click” operation is piezoelectric. The operation is “determined” or “entered” by detecting the combined use of the bimorph element. Note that the touch at this time is not on the large screen display unit 205 but on an arbitrary place on the outer wall of the mobile phone, so that a “click” operation can be performed without leaving a fingerprint on the large screen display unit 205.

  In addition, the vibration isolator 2465 in Example 27 using FIG. 41 cuts off the vibration from the telephone function unit 45 in the voice signal area and transmits the shock vibration component in the bandpass filter area or the lowpass filter area that can be transmitted. It is transmitted to a cartilage conduction vibration source 925 made of a piezoelectric bimorph. After the cartilage conduction vibration source 925 detects a finger touch impact, a low frequency is generated from the low frequency source 2466 with a predetermined delay time to vibrate the cartilage conduction vibration source 925 and feed back to the touched finger. Is common to the twenty-sixth embodiment. In this case, the piezoelectric bimorph element needs to be switched between a function as an input element and a function as an output element. This switching is performed by using the above delay time.

  The implementation of the present invention is not limited to the above-described embodiments, and various modifications can be made. For example, the click sensor in the non-contact type motion sensor as in the embodiment 27 may use the acceleration sensor 49 in FIG. 42 instead of the impact detection function of the piezoelectric bimorph element. Further, both the function of the acceleration sensor 49 and the impact detection function of the piezoelectric bimorph element may be used in appropriate combination.

  In addition, the feature of the cartilage conduction vibration source 925 that serves as the low-frequency vibration source in the twenty-sixth and twenty-seventh embodiments is not limited to the purpose of touch-sensitive feedback to the finger, and the incoming call to the mobile phone 2401 is silent. It is also possible to use it as a vibrator for notification in In this case, of course, the introduction of the vibration signal of the low frequency source 2466 to the cartilage conduction vibration source 925 is performed in response to the incoming signal, not the touch detection, and in that case, no delay is required, and the introduction of the vibration signal is not performed. Is repeated intermittently (for example, with a vibration stop period of 0.5 seconds) for a relatively long time (for example, 2 seconds).

  The various features shown in the above embodiments are not necessarily specific to each embodiment, and the features of each embodiment are appropriately different from those of other embodiments as long as the advantages can be utilized. They can be combined or rearranged. For example, as an external transmission / reception unit for a mobile phone having the characteristics as in the embodiment 26 or the embodiment 27, the glasses-type stereo portable music player described above as a modification of the embodiment 25 in FIG. Can be combined. In this case, it is possible to enjoy stereo reproduction from the sound source built in the music player, and to enjoy stereo reproduction by receiving an audio signal from the sound source of the mobile phone. Then, a mobile phone call can be performed freehand with an air conduction microphone or a bone conduction microphone incorporated in the glasses-type portable music player.

  FIG. 44 relates to Example 28 according to the embodiment of the present invention. FIG. 44 (A) is a perspective view showing a part of the upper end side, and FIG. 44 (B) is shown in FIG. It is sectional drawing which shows the BB cross section of A). The twenty-eighth embodiment is configured as a mobile phone 2501, and in the same manner as the fourth embodiment shown in FIG. Sound can be heard by cartilage conduction by touching the tragus. Also in the embodiment 28 of FIG. 44, the “upper part” does not mean the separated upper part, but means the upper part of the integrated structure.

  44 differs from the fourth embodiment shown in FIG. 7 in a holding structure for holding the cartilage conduction vibration source 2525 and the vibration conductor 2527 in the mobile phone 2501. Since the structure for inputting an audio signal to the cartilage conduction vibration source 2525 can be appropriately adopted according to the first to 27th embodiments, the illustration and description thereof are omitted. The cartilage conduction vibration source 2525 of Example 28 is configured as a piezoelectric bimorph element (hereinafter referred to as “piezoelectric bimorph element 2525”), but the piezoelectric bimorph element 2525 is formed of the metal plate 2597 as shown in FIG. Piezoelectric ceramic plates 2598 and 2599 are bonded to both sides, respectively, and the periphery thereof is solidified with resin. Due to its structure, it vibrates in the Y-Y ′ direction shown in FIG. Therefore, the vibration component in the Y-Y ′ direction is large and the vibration component in the X-X ′ direction is small on the resin surface of the piezoelectric bimorph element 2525.

  Assuming the structure of the piezoelectric bimorph element 2525 as described above, in the holding structure of Example 28, as can be seen from the cross-sectional view of FIG. 44B, the holding body 2516 has a small vibration component from the XX ′ direction. The piezoelectric bimorph element 2525 is sandwiched. Note that the holding body 2516 and the piezoelectric bimorph element 2525 are joined by an adhesive, and the holding body 2516 is rigidly coupled to the mobile phone 2501. On the other hand, regarding the YY ′ direction of the piezoelectric bimorph element 2525, a gap 2504 is provided between the inner surface side on the right side and the holding body 2516 in FIG. 44B, and the YY ′ direction in the piezoelectric bimorph element 2525. The free vibration is allowed and the vibration component is not easily transmitted to the holding body 2516. In addition, in FIG. 44B in the Y-Y ′ direction of the piezoelectric bimorph element 2525, the vibration conductor 2527 is rigidly bonded to the left outer surface side with an adhesive. The mobile phone 2501 has an opening 2501 a for exposing the vibration conductor 2527. The space between the vibration conductor 2527, the holding body 2516, and the opening 2501a of the mobile phone 2501 is filled with a vibration isolation material 2565 made of an elastic material such as vinyl or urethane, and YY ′ of the vibration conductor 2527. Free vibration in the direction is allowed and the vibration component of the piezoelectric bimorph element 2525 is not easily transmitted to the holding body 2516 and the mobile phone 2501. In the above description, the gap 2504 may be filled with the same elastic body as the vibration isolator 2565.

  With the holding structure as described above, the force of the hand holding the mobile phone 2501 is rigidly applied to the vibration conductor 2527, and the contact with the right tragus or the left tragus and its pressure can be easily controlled. it can. Further, since the vibration conductor 2527 has a structure that allows free vibration in the YY ′ direction, the vibration conductor 2527 vibrates efficiently and the vibration is transmitted to the ear cartilage, and the vibration of the vibration conductor 2527 is also transmitted. It is possible to effectively prevent unnecessary air conduction from being transmitted to the mobile phone 2501.

  FIG. 45 is a cross-sectional view of a modification of the embodiment 28 of FIG. FIG. 45A is a cross-sectional view of the first modified example, which is illustrated according to FIG. 44B, and common portions are denoted by common numbers. Similarly, FIG. 45B shows a cross-sectional view of the second modification. In the first modification shown in FIG. 45 (A), a gap 2504 is widened between the holding body 2516 and the piezoelectric bimorph element 2525, and the holding for sandwiching the piezoelectric bimorph element 2525 from the XX ′ direction therebetween. An auxiliary portion 2506 is provided. The holding auxiliary unit 2506 selects a rigid material having a different acoustic impedance from both or at least one of the holding body 2516 and the piezoelectric bimorph element 2525. Note that the holding auxiliary portion 2506 may be an elastic body if there is no problem in holding power. Further, since the holding auxiliary portion 2506 is configured to be disposed in the center portion avoiding the vibration surface in the YY ′ direction in the piezoelectric bimorph element 2525, even if it is integrally molded with the same material as a part of the holding body 2516, Compared with FIG. 44B, the piezoelectric bimorph element 2525 has a large effect of allowing vibration in the YY ′ direction and reducing vibration transmission to the mobile phone 2501.

  Even in the second modified example of FIG. 45B, the gap 2504 is widened between the holding body 2516 and the piezoelectric bimorph element 2525, but in order to sandwich the piezoelectric bimorph element 2525 from the XX ′ direction. A plurality of screws 2508 provided at the central part of the piezoelectric bimorph element 2525 are used. The screw 2508 is screwed so that its sharp tip slightly bites into the surface of the piezoelectric bimorph element 2525, thereby ensuring the holding of the piezoelectric bimorph element 2525.

  FIG. 46 is a cross-sectional view of still another modified example of the embodiment 28 shown in FIG. FIG. 46A is a cross-sectional view of the third modified example, and is shown in FIG. 44B in the same manner as FIG. 45, and common portions are denoted by common numbers. Similarly, FIG. 46B shows a cross-sectional view of the fourth modification. In the third modified example shown in FIG. 46A, the resin is molded so that the concave portion 2580 is formed on the surface of the piezoelectric bimorph element 2525, and the corresponding convex portion is integrally molded with the holding body 2516. . The holding of the piezoelectric bimorph element 2525 by the holding body 2516 is ensured by the engagement of these uneven portions. When assembling, the piezoelectric bimorph element 2525 may be fitted by using some elasticity of the holding body 2516, or the holding body 2516 is divided into two parts and the piezoelectric bimorph element 2525 is interposed therebetween. May be configured to be screwed together.

  In the fourth modified example shown in FIG. 46B, the resin is molded so that the convex portion 2590 is formed on the surface of the piezoelectric bimorph element 2525, and the corresponding concave portion is integrally molded with the holding body 2516. . Then, similarly to FIG. 46A, the holding of the piezoelectric bimorph element 2525 by the holding body 2516 is ensured by the engagement of these uneven portions. When assembling, similarly to FIG. 46A, the piezoelectric bimorph element 2525 is fitted by using some elasticity of the holding body 2516, or the holding body 2516 is divided into two bodies to form the piezoelectric bimorph element. After 2525 is sandwiched, these are integrally screwed.

  FIG. 47 relates to Example 29 according to the embodiment of the present invention. FIG. 47 (A) is a perspective view showing a part of the upper end side, and FIG. 47 (B) is a modified example thereof. It is a perspective view which shows a part of upper end side in. Example 29 has substantially the same holding structure as that of Example 28 in FIG. 44, except that an opening 2501b provided on the outer wall of mobile phone 2501 and a vibration conductor that contacts the right tragus or the left tragus are provided. The structure exposed on the surface of the mobile phone from 2501c is different. Therefore, the parts common to those in FIG. Only the differences from the embodiment 28 of FIG. 44 will be described below.

  In Example 28 of FIG. 44, the vibration conductor 2527 is exposed in the form of a band on the entire upper end of the mobile phone 2501, and both ends thereof are in contact with the right tragus or the left tragus, respectively, and have a large area on the ear cartilage. It is comprised so that it can also contact in. On the other hand, in Example 29 of FIG. 47A, the vibration conductor is separated into the right-ear vibration conductor 2524 and the left-ear vibration conductor 2526 and bonded to both ends of the piezoelectric bimorph element 2525, respectively. It has become. Then, only the separated parts of the right-ear vibration conductor 2524 and the left-ear vibration conductor 2526 are exposed from the openings 2501b and 2501c at the upper corners of the mobile phone 2501, respectively. For this reason, the vibration isolator 2565 for filling the space between the right ear vibration conductor 2524 and the left ear vibration conductor 2526 and the mobile phone 2501 is also provided separately.

  On the other hand, in the modified example of the embodiment 29 shown in FIG. 47B, only the left-ear vibration conductor 2526 is bonded to the piezoelectric bimorph element 2525. Only the left ear vibration conductor 2526 is exposed from the opening 2501 b at the upper corner of the mobile phone 2501. Further, the vibration isolator 2565 for filling the space between the left ear vibration conductor 2526 and the mobile phone 2501 is provided only at the left corner of the mobile phone 2501. The modified example of the embodiment 29 shown in FIG. 47 (B) simplifies the configuration of FIG. 47 (A) and is configured exclusively for the left ear, but has an opening provided with a vibration conductor at the right corner. It is also possible to configure as a mobile phone dedicated to the right ear by being exposed from the portion. As a further modification of the modification of the embodiment 29 shown in FIG. 47 (B), when the surface of the piezoelectric bimorph element can be shaped into a shape suitable for the outer surface of the mobile phone, the piezoelectric bimorph element does not go through the vibration conductor. It is also possible to expose directly from the opening. Such a modification is also possible in the embodiment 29 shown in FIG. 47A and the embodiment 28 shown in FIG.

  FIG. 48 relates to Example 30 according to the embodiment of the present invention. FIG. 48 (A) is a perspective view showing a part of the upper end side, and FIG. 48 (B) is shown in FIG. It is sectional drawing which shows the BB cross section of A). Example 30 is configured as a mobile phone 2601 and arranges the cartilage conduction vibration part on the side of the mobile phone in the same manner as Example 13 shown in FIG. 24 and Example 14 shown in FIG. Further, the embodiment 30 of FIG. 48 is characterized by a holding structure for allowing vibration for the conduction of the ear cartilage in the piezoelectric bimorph element and reducing the transmission of vibration to the mobile phone in the same manner as the embodiment 28 of FIG. Therefore, the same reference numerals are given to the portions common to the embodiment 28 and the description is omitted. Similar to the embodiment 28, the illustration and description of the configuration for inputting the audio signal to the cartilage conduction vibration source 2525 are omitted.

  In Example 30 of FIG. 48, the piezoelectric bimorph element 2525 is fitted into the side surface of the mobile phone. However, as shown in FIG. 48B, the depth of the fitting portion is curved. The ridge line portion 2525a comes into contact with the inner surface of the curved portion of the mobile phone 2601. By this contact, the piezoelectric bimorph element 2525 is positioned in the fitting depth direction, and the holding force in the pushing direction of the piezoelectric bimorph element 2525 is strengthened. Further, the contact structure as described above creates a crescent-shaped gap 2604 in the Y-Y ′ direction of the piezoelectric bimorph element 2525, thereby allowing free vibration. In Example 30 as well, the basic holding of the piezoelectric bimorph element 2525 is performed from the X-X ′ direction. In FIG. 48, for the sake of simplicity, a part of the integrated structure of the mobile phone 2601 is shown as the holding structure. You may comprise so that it may adhere to the telephone 2601. FIG. Since the other structure is understood according to FIG. 44, description thereof is omitted. The various modifications shown in FIGS. 45 and 46 are also applicable to the embodiment 30 shown in FIG.

  FIG. 49 relates to Example 31 according to the embodiment of the present invention, and FIG. 49 (A) is a longitudinal sectional view showing a part of the upper end side thereof. FIG. 49B is a cross-sectional view of the same portion, and can be understood in the same manner as FIG. Example 31 is configured as a mobile phone 2701, and in the same manner as Example 30 shown in FIG. Further, the feature is the holding structure for allowing vibration for the conduction of the ear cartilage in the piezoelectric bimorph element and reducing the transmission of vibration to the mobile phone. Therefore, the same parts as the embodiment 30 in FIG. 48 are the same. A number is attached and explanation is omitted. The point of omitting the illustration and description of the configuration for inputting an audio signal to the cartilage conduction vibration source 2525 is the same as in the thirty-third embodiment.

  The embodiment 31 of FIG. 49 differs from the embodiment 30 of FIG. 48 in the holding structure of the piezoelectric bimorph element 2525. The piezoelectric bimorph element 2525 has a structure that is fitted into the groove on the side surface of the mobile phone 2701 in the same manner as in Example 30, and is apparent from the longitudinal sectional view of FIG. 49A and the lateral sectional view of FIG. As described above, the inner surface of the groove is an uneven surface 2794. As a result, the piezoelectric bimorph element 2525 is held at a large number of top portions of the uneven surface 2794, and a large number of gaps 2704 are generated between the two. . Also in FIG. 49, for simplicity, a part of the integrated structure of the mobile phone 2701 is shown as the holding structure, but a structure like the holding body 2516 of the embodiment 28 and the embodiment 29 is adopted, and this is used. The mobile phone 2701 may be fixed. This is the same in the modification described later.

  FIG. 50 is a longitudinal sectional view showing a modification of the embodiment 31, which can be understood according to FIG. 49 (A). FIG. 50A shows a first modified example in which a vibration conductor 2727 (silicon, urethane, etc.) is provided on the side of the piezoelectric bimorph element 2525 that contacts the ear cartilage. FIG. 50B shows a second modification in which a vibration isolator 2765 is interposed between the piezoelectric bimorph element 2525 and the mobile phone 2701, and the surface where the vibration isolator 2765 contacts the piezoelectric bimorph element 2525 is an uneven surface. 2795. A modification in which the vibration conductor 2727 in the first modification of FIG. 50A and the vibration isolator 2765 in the second modification of FIG. 50B are used together is also possible.

  FIG. 51 is a perspective view of Example 32 according to the embodiment of the present invention. The thirty-second embodiment is configured as a piezoelectric bimorph element 2525 suitable for use in, for example, the mobile phone 2501 of the twenty-ninth embodiment shown in FIG. FIG. 51A is an external perspective view of the piezoelectric bimorph element 2525 of Example 32, and FIG. 51B is a perspective view thereof. In FIG. 51, for convenience of illustration, the piezoelectric bimorph element 2525 is rotated 90 degrees from the state of FIG. 47A, and the Y-Y ′ direction is drawn up and down.

  The holding body 2516 of Example 29 in FIG. 47A sandwiches the piezoelectric bimorph element 2525 from the XX ′ direction shown in FIG. 44B in the same manner as in Example 28 of FIG. Free vibration in the direction is allowed and vibration components are not easily transmitted to the holding body 2516. Furthermore, the holding body 2516 is configured so as to sandwich the central portion of the piezoelectric bimorph element 2525 to which the right-ear vibration conductor 2524 and the left-ear vibration conductor 2526 are respectively bonded at both ends.

  The piezoelectric bimorph element 2525 shown in FIG. 51 is configured to hold the central portion of the piezoelectric bimorph element 2525 from the X-X ′ direction as described above. Specifically, as shown in FIG. 51A, the piezoelectric bimorph element 2525 of Example 32 is configured such that electrodes 2597a and 2598a for inputting drive signals are located in the central portion of the piezoelectric bimorph element 2525. ing. Thus, both end portions of the piezoelectric bimorph element 2525 are released from the wiring connection, and free vibration is possible. Furthermore, the protruding directions of the electrodes 2597a and 2598a are configured to be along the Y-Y 'direction of the vibration direction. As a result, the electrodes 2597a and 2598a do not get in the way when sandwiching the central portion of the piezoelectric bimorph element 2525 from the XX ′ direction despite the electrodes 2597a and 2598a being disposed in the central portion, and the holder 2516 There is no need for a special configuration.

  In order to enable the electrode arrangement as described above, as shown in FIG. 51B, the piezoelectric bimorph element 2525 has an electrode 2597a led out from the central portion of the metal plate 2597 bent upward by 90 degrees, The electrodes 2598a led out from the ceramic plates 2598 and 2599 and connected together are also bent upward by 90 degrees and are configured to protrude from the upper surface of the resin. Accordingly, the electrode does not protrude in the X-X ′ direction, and the central portion of the piezoelectric bimorph element 2525 can be easily sandwiched and supported from the X-X ′ direction.

  As a modification of FIG. 51, the electrode 2597a led out from the central part of the metal plate 2597 and the electrode 2598a led out from the central part of the piezoelectric ceramic plates 2598 and 2599 may be configured to protrude from the side surfaces of the resin, respectively. It is. In this case, in order to sandwich and support the central portion of the piezoelectric bimorph element 2525 from the XX ′ direction, a signal line is connected or held by providing a gap that avoids a portion where the holding body 2516 interferes with the electrode. A socket structure is provided inside the body 2516 and connected to the electrode. Also in this case, the holding body 2516 needs to have a special configuration, but the electrodes 2597a and 2598a are provided at the center, so that both ends of the piezoelectric bimorph element 2525 are opened from the wiring connection. The advantage of enabling free vibration can be enjoyed.

  FIG. 52 relates to Example 33 according to the embodiment of the present invention, and is configured as a mobile phone 2801. 52A is a perspective view of a part of the upper end side as viewed from the back side, and FIG. 52B is a perspective view of a part of the upper end side in the modification as viewed from the opposite side surface. FIG. Example 33 shown in FIG. 52 (A) has substantially the same holding structure as Example 29 in FIG. 47 (A), but a pair of vibration conductors 2824 and 2826 in contact with the ear cartilage are attached to the surface of the mobile phone. The structure to be exposed is different.

  Specifically, in the embodiment 29 of FIG. 47, the vibration conductors 2524 and 2526 are directly exposed at the upper corner of the mobile phone 2501. On the other hand, in the embodiment 33 of FIG. 52, the corners 2801d and 2801e are part of the outer wall having sufficient strength of the mobile phone 2801 itself, and the vibration conductors 2824 and 2826 are guarded by these, respectively. It is exposed on the display surface side of the mobile phone 2801 in the form. Details of this exposed state and its significance will be described later. Since the other configuration is the same as that of the embodiment 29 in FIG. 47, the same reference numerals are given to the common portions in FIG. Example 33 is also a mounting example of the piezoelectric bimorph element 2525 shown in Example 32, and the positions of the electrodes 2597a and 2598a are shown together.

  A modified example of the embodiment 33 in FIG. 52 (B) has the same configuration as that of the vibration unit described in FIG. 52 (A), and is similar to the embodiment 30 of FIG. 48 and the embodiment 31 of FIG. It is attached to vibrate the side. Also in the modification of the embodiment 33 in FIG. 52 (B), the upper vibration conductor 2824 of the pair of vibration conductors is guarded by the corner 2801d of the cellular phone 2801 having sufficient strength, and the cellular phone 2810 It is exposed on the side. The lower vibration conductor 2826 is naturally guarded because it is not originally located at the corner.

  53 is an external perspective view of the embodiment 33 of FIG. 52 and a modification thereof as seen from the front. FIG. 53 (A) is that of the embodiment 33, and FIG. 53 (B) is a modification thereof. Is. Also in FIG. 53, since there are many configurations in common with Example 26 and the like in FIG.

  As is clear from FIG. 53A, the pair of vibration conductors 2824 and 2826 are exposed on the surface of the large screen display portion 205 of the mobile phone 2801 in a form guarded by the corners 2801d and 2801e of the mobile phone 2801, respectively. ing. In the same manner as in the embodiment 29 of FIG. 47, also in the embodiment 33 of FIG.

  Here, the significance of the configuration of the above-described embodiment 33 shown in FIGS. 52 and 53 will be described. The corners 2801d and 2801e of the cellular phone 2801 are portions that are suitable for being applied to an ear cartilage such as a tragus, but at the same time, are also portions that are easily subjected to direct impact when dropped. 47, for example, the vibration conductors 2524 and 2526, the piezoelectric bimorph element 2525 to which they are bonded, and the vibration unit such as the holding body 2516 are resistant to collision. Must be configured. On the other hand, according to the configuration of the embodiment 33 shown in FIGS. 52 and 53, the vibration conductors 2524 and 2526 are guarded by the corners 2801d and 2801e of the mobile phone 2801. Compared with, impact countermeasures are simplified.

  Also in the modification of FIG. 53 (B), as is clear from the figure, the upper vibration conductor 2824 of the pair of vibration conductors is guarded by the corner 2801d of the mobile phone 2801 and is placed on the side surface of the mobile phone 2801. Exposed. Also, the lower vibration conductor 2826 is located on the side where it is difficult for a direct impact to be applied. As in the case of FIG. 53A, the space between the pair of vibration conductors 2824 and 2826 and the mobile phone 2801 is filled with a vibration isolator 2865, respectively.

  When the vibration conductors 2824 and 2826 are provided at two locations on the side surface (including one in the vicinity of the upper corner 2801) as in the modification of the embodiment 33 shown in FIGS. 52 (B) and 53 (B). Both can be applied to two parts of the ear cartilage in the longitudinal direction. In this case, if the distance between the vibration conductor 2824 and the vibration conductor 2826 is set to about 2 cm to 5 cm, when the lower vibration conductor 2826 is applied to the tragus, the upper vibration conductor 2824 is also applied to the ear cartilage. Is possible. Of course, it is arbitrary to use the upper vibration conductor 2824 by placing it on the tragus. Similarly, in the case of Example 33 shown in FIGS. 52 (A) and 53 (A), it is also possible to apply both the vibration conductors 2824 and 2826 to two locations of the ear cartilage in the lateral direction. In addition, as in Example 29 in FIG. 47, it is optional to use the vibration conductor 2824 for the right tragus contact and the vibration conductor 2826 for the right tragus contact.

  In any case, the two-point contact with the ear cartilage can introduce the energy of the vibration conductors 2824 and 2826 which are simultaneously vibrating into the ear cartilage, so that transmission efficiency is good in terms of energy. On the other hand, when the mobile phone 2801 is strongly pressed against the tragus in order to obtain the effect of the trabecular bone conduction, it is easier to press the tragus to close the ear when only one vibration conductor at the corner is applied to the tragus. Can do.

  FIG. 54 is a perspective view of the working example 34 according to the embodiment of the present invention, which is configured as a mobile phone 2901. The embodiment 34 is configured to vibrate the side surface of the mobile phone 2901 as in the embodiment 30 of FIG. 48 and the embodiment 31 of FIG. 49, but when used with a right hand and when used with a left hand. Both sides can be vibrated so that either of them can be used. In other words, Example 34 of FIG. 54 is obtained by replacing the pair of vibration conductors 2824 and 2826 in Example 33 of FIG. 52A with a pair of vibration conductors 2924 and 2926 for side surface arrangement, The vibration conductors 2924 and 2926 have a vertically long shape so that contact with the ear cartilage can be achieved over a wide range of side surfaces. The holding structure of the piezoelectric bimorph element 2525 is the same as that of the embodiment 33 in FIG. 52A, but detailed illustration is omitted to avoid complication.

  In Example 34, the color of the vibration conductors 2924 and 2926 is made different from the color of the outer wall of the mobile phone 2901 so that the sound can be heard from the side and the part to which the ear is applied at that time is presented to the user. You may comprise so that it may understand. On the other hand, if the user is well-known to listen to the sound from the side and the part to which the ear is applied at that time, the color of the vibration conductors 2924 and 2926 is the same as the color of the outer wall of the mobile phone 2901. The same color may be used, or a surface treatment may be performed so that the boundary with the outer wall of the mobile phone 2901 is not known. Since the other configuration of the embodiment 34 is common to the embodiment 26 of FIG. 41, for example, the same number is assigned to the common part and the description is omitted.

  FIG. 55 is a see-through perspective view regarding Example 35 according to the embodiment of the present invention, and is configured as a mobile phone 3001. Similarly to the embodiment 34 of FIG. 54, the embodiment 35 is configured to vibrate both sides of the mobile phone 3001 over a wide range. However, unlike the embodiment 34 in FIG. 54, the pair of piezoelectric bimorph elements 3024 and 3026 are arranged in a vertically long posture so that both side surfaces can be controlled independently. Accordingly, only the one piezoelectric bimorph element to be used can be automatically vibrated in the same manner as the first to third embodiments described with reference to FIGS. Regarding the holding of the piezoelectric bimorph elements 3024 and 3026, the holding structures of the respective embodiments described with reference to FIGS. 44 to 52 and the like can be adopted as appropriate, and thus detailed illustration is omitted to avoid complication.

  Also in Example 35, when the piezoelectric bimorph elements 3024 and 3026 are arranged on the side surfaces, the piezoelectric bimorph elements 3024 and 3026 are covered with a material such as the vibration conductor 2527 in Example 30 of FIG. May be configured to be different from the color of the outer wall of the mobile phone 3001 so that the user can recognize that the sound is heard from the side and the part to which the ear is applied. On the other hand, as in the case of Example 35, when the user is well-known to listen to the sound from the side and the part to which the ear is applied at that time, the color of the vibration conductor is set to the outer wall of the mobile phone 3001. Alternatively, the color may be the same color as the above, or a surface treatment may be performed so that the boundary between the outer wall of the mobile phone 3001 and other side portions is not known. The other configuration of the embodiment 35 is common to, for example, the embodiment 26 of FIG.

  56 is a see-through perspective view of Example 36 according to the embodiment of the present invention, which is configured as a mobile phone 3101 and a mobile phone 3201. FIG. The embodiment 36 shown in FIG. 56 has substantially the same configuration as the embodiment 35 shown in FIG. 55. However, the mobile phone 3101 is a left-hand-held mobile phone 3101 shown in FIG. 56 (A) and the right-hand hold shown in FIG. 56 (B). The mobile phone 3201 is configured to be provided to the market in a selectable manner. That is, in the left handheld mobile phone 3101 in FIG. 56 (A), the piezoelectric bimorph element 3024 for applying to the left ear cartilage is applied to the left ear cartilage in the right handheld mobile phone 3201 shown in FIG. 56 (B). The piezoelectric bimorph element 3026 is provided. In addition, since it is limited to one-side use, the transmitter unit such as a microphone is also provided with a transmitter unit (microphone) 1223 below the left side of the mobile phone 3101 for left hand in FIG. 56A. The right handheld mobile phone 3201 is provided with a microphone (microphone) 1123 below the right side surface. Note that these transmitters (microphones) 1123 or 1223 are the same as in the twelfth or thirteenth example, and in the case of a videophone call while observing the large screen display unit 205, the transmitter (microphone). Switching between 1123 and 1223 is performed, and it is possible to pick up a sound produced by a user who is observing the large screen display unit 205.

  In Example 36 of FIG. 56, the audio-related configurations such as the piezoelectric bimorph element and microphone related to reception and transmission are collected on the side of the mobile phone as described above, and the visual-related configuration such as the large screen display unit 205 is portable. Since the mobile phone 3101 or 3201 is put on the front of the phone, the side is used when the mobile phone 3101 or 3201 is put on a face such as an ear, and the mobile phone 3101 that forms 90 degrees when using the mobile phone 3101 or 3201 with the eyes. Alternatively, the two screens 3201 can be used properly, and the front of the mobile phone 3101 or 3201 can be prevented from being dirty with respect to the face of the large screen display unit 205 or the like.

  In Example 36 of FIG. 56, the opposite side surface on which the piezoelectric bimorph element 3024 or 3026 is not disposed is mainly used for holding a mobile phone. The material 3101f or 3201f can be covered to facilitate holding, and the side to be applied to the ear can be clearly indicated. In Example 36 as well, as in Example 35, the color of the vibration conductor covering the piezoelectric bimorph element 3024 or 3026 may be different from the color of the outer wall of the mobile phone 3101 or 3201. Further, in Example 36, when the opposite side surface is covered with the rough feel material 3101f or 3201f as described above, the side surface on which the sound is heard can be identified, so that the color of the vibration conductor is changed to the mobile phone 3101 or 3201. The color of the outer wall of the mobile phone 3101 or 3201 may be the same color as the color of the outer wall of the mobile phone 3101 or 3201. The other configuration of the embodiment 35 is common to, for example, the embodiment 26 of FIG.

  Note that “for right-handed” and “for left-handed” in Example 36, for example, rotate the wrist as it is from the state of holding the mobile phone 3101 of FIG. It is assumed that the side surface on which the piezoelectric bimorph element 3024 is provided hits the left ear cartilage when the side surface of the mobile phone 3101 is applied to the ear without touching. However, the usage of the user is arbitrary, and when holding the mobile phone 3101 of FIG. 56A in the right hand and putting it on the ear, turning the wrist 180 degrees and turning the mobile phone 3101 upside down, the piezoelectric bimorph element 3024 The side of the provided side can be applied to the right ear cartilage. Therefore, “right hand holding” and “left hand holding” are provisional, and the user can freely select which one to purchase and how to use it. Therefore, for the user who uses the wrist while rotating as described above, the mobile phone 3101 in FIG. 56A can be recognized as “held by the right hand”.

  FIG. 57 is a see-through perspective view regarding Example 37 according to the embodiment of the present invention, and is configured as a mobile phone 3301. The embodiment 37 in FIG. 57 has many parts in common with the modification of the embodiment 10 in FIG. 40, and therefore, the common parts are denoted by the same reference numerals and the description thereof is omitted. Example 37 differs from the modification of Example 10 in that the piezoelectric bimorph element 2525 is not only the front surface, but also the cartilage formed of a material whose acoustic impedance is similar to that of the ear cartilage on the front, back, left, right, and top of the mobile phone 3301. It is covered with the conduction output part 3363. The cartilage conduction output portion 3363 is similar to the cartilage conduction output portion 963 in the tenth embodiment or its modification, for example, silicone rubber, a mixture of silicone rubber and butadiene rubber, natural rubber, or air bubbles sealed in these. It is formed by the material of the structure.

  According to the configuration of Example 37, since cartilage conduction can be obtained by applying it to the ear cartilage at any location above the mobile phone 3301, just placing the top of the mobile phone 3301 on the ear without worrying about the location. Listen to the sound at the optimal volume.

  Various features of each embodiment described above are not limited to individual embodiments, and can be appropriately replaced or combined with features of other embodiments.

  FIG. 58 is a cross-sectional block diagram relating to Example 38 in accordance with an embodiment of the present invention, and is configured as a mobile phone 3401. The embodiment 38 in FIG. 58 has many portions in common with the embodiment 26 or embodiment 27. Therefore, common portions are denoted by the same reference numerals as those in FIG. 42 and description thereof is omitted. The embodiment 38 differs from the embodiment 26 or the embodiment 27 in that the cartilage conduction vibration source 2525 constituted by a piezoelectric bimorph element is rigidly fixed to the housing structure 3426 of the mobile phone 3401 and the cartilage conduction vibration source 2525 That is, the vibration is transmitted to the entire surface of the mobile phone 3401. Note that when the piezoelectric bimorph element constituting the cartilage conduction vibration source 2525 is fixedly attached, the vibration is positively transmitted, so that the vibration is positively adhered to the housing structure 3426 without providing the gap 2504 as shown in FIG. The vibration in the main vibration direction (YY ′ direction) is easily transmitted to the housing structure 3426. As a result, the entire surface of the mobile phone 3401 acts as a vibration conductor, and cartilage conduction can be obtained wherever the surface of the mobile phone 3401 is applied to the ear cartilage.

  Since the embodiment 38 is configured as described above, when the large area of the front surface or the back surface of the mobile phone 3401 is applied to the entire ear cartilage, the cartilage conduction vibration source is obtained in the same manner as the embodiments 5 to 9. The vibration 2525 is transmitted to the ear cartilage through the housing structure 3426 with a wide contact area on the surface of the mobile phone 3401. Further, air conduction sound generated by the vibration of the surface of the mobile phone 3401 is transmitted from the ear canal to the eardrum. Thereby, the sound source information from the cartilage conduction vibration source 2525 can be heard as a loud sound. In addition, since the surface of the mobile phone 3401 applied to the ear closes the ear canal, environmental noise can be blocked. Further, when the force with which the mobile phone 3401 is pressed against the ear is increased, the external auditory canal is almost completely blocked, and the sound source information from the cartilage conduction vibration source 2525 can be heard as a louder sound due to the ear plug bone conduction effect.

  Further, when the side surface of Example 38 is applied to the ear cartilage, in the same manner as Example 11 to Example 14, Example 30, Example 31, Example 33, Modification Example 34 to Example 36, It is possible to prevent the front surface of the mobile phone provided with a display surface and the like from being soiled by contact with the face. Further, in the case where the upper side corner of Example 38 is applied to the otic cartilage, the tragus or the like in the same manner as in Examples 1 to 4, Example 10 and its modifications, Examples 26 to 29, and Example 33 Can be easily brought into contact with the ear canal, and by pushing the tragus to close the entrance to the ear canal, it is possible to easily obtain the effect of the ear plug bone. The embodiment 37 in FIG. 57 is configured so that cartilage conduction can be obtained by touching the ear cartilage at any location above the mobile phone 3301, but the embodiment 38 in FIG. 58 has this feature. It can be said that the user can listen to the sound at the optimum volume by simply touching the upper part of the mobile phone 3401 with his / her ear regardless of the location on the surface of the mobile phone 3401.

  In Example 38 of FIG. 58, the main vibration direction (YY ′ direction) of the piezoelectric bimorph element is the GUI display unit 3405 (in FIG. 58, conceptualized in the block diagram, but the perspective view of FIG. 41 related to Example 26). If the figure is used, a cartilage conduction vibration source 2525 is fixed to the housing structure 3426 so as to be orthogonal to the large screen display unit 205) having a touch panel function. (Although the fixing cross section is not shown in FIG. 58, the fixing state will be described later.) As a result, the large area portion of the front surface or the back surface of the mobile phone 3401 provided with the GUI display portion 3405 is vibrated efficiently. . The cartilage conduction vibration source 2525 is fixed, but the energy is relatively small in the non-vibration direction (XX ′ direction) of the piezoelectric bimorph element. However, even if the side of the mobile phone 3401 is applied to the ear cartilage, cartilage is generated. Sound can be heard by conduction. Incidentally, the GUI display unit 3405 of FIG. 58 collectively illustrates the large screen display unit 205, the display driver 41, and the touch panel driver 2470 of FIG.

  In the embodiment of FIG. 58, the function is selected by the motion sensor that detects the movement of the finger in the vicinity of the GUI display unit 3405 in a non-contact manner in the same manner as the embodiment 27, and the touch of the finger for determining the selected function is performed. The impact detection function of the piezoelectric bimorph element constituting the cartilage conduction vibration source 2525 is used as an impact sensor to detect. The impact sensor 3442 shown in FIG. 58 has the same function as the pressure sensor 242 shown in FIG. 9, and extracts the impact detection signal of the piezoelectric bimorph element. The arrangement in which the main vibration direction (Y-Y ′ direction) of the piezoelectric bimorph element is orthogonal to the GUI display unit 3405 is suitable for detecting a touch from the front or back of the mobile phone 3401. Further, in the embodiment of FIG. 58, the cartilage conduction vibration source 2525 is also used as a low-frequency output element for feedback of touch feeling in the same manner as the embodiment 27, but the main vibration direction (Y The arrangement in the −Y ′ direction) is suitable for efficiently transmitting feedback vibration to the finger in response to a touch from the front or the back of the mobile phone 3401. The embodiment of FIG. 58 is also used as a vibration source of a vibrator in which the cartilage conduction vibration source 2525 notifies the incoming call to the mobile phone 3401 silently in the same manner as described in the twenty-sixth embodiment.

  In the embodiment of FIG. 58, the horizontal stationary state is detected by the acceleration sensor 49 in the same manner as in the embodiment 27 in the same manner as in the embodiment 4. If applicable, the vibration of the cartilage conduction vibration source 2525 is prohibited. It is configured as follows. Thus, when the mobile phone 3401 is placed on a desk or the like during a call, the possibility of generating vibration noise with the desk due to the output of the voice from the other party is prevented. It should be noted that the above-described GUI operation and incoming call vibrator function are appropriately enabled even when the mobile phone 3401 is placed on a desk or the like. In such a case, the horizontal stationary state is detected by the acceleration sensor 49. Even so, the vibration of the cartilage conduction vibration source 2525 is not prohibited. Details of this point will be described later as a function of the control unit 3439.

  In the embodiment of FIG. 58, the casing structure 3426 of the mobile phone 3401 is configured to vibrate actively, and this vibration may be transmitted to the microphone 223 to cause howling. As a countermeasure, in order to block acoustic conduction between the housing structure 3426 of the mobile phone 3401 and the microphone 223, an insulating ring portion 3465 having an acoustic impedance different from that of the housing structure 3426 is provided therebetween. Note that howling prevention is also implemented as a circuit measure by a signal transmission path from the transmission processing unit 222 to the reception processing unit 212 in the telephone function unit 45.

  FIG. 59 is a rear perspective view and a cross-sectional view showing how the cartilage conduction vibration source 2525 is fixed to the housing structure 3426 of the mobile phone 3401 in the embodiment 38 of FIG. FIG. 59 (A) is a rear perspective view showing a part of the upper end side of the mobile phone 3401 of Example 38, and FIG. 59 (B) is a cross-sectional view showing a BB cross section of FIG. 59 (A). is there. FIG. 59C is a see-through perspective view of a part of the upper end side in the modified example of the embodiment 38 as seen from the side surface on the opposite side. Since the structure of the piezoelectric bimorph element itself is the same as that shown in FIG. 44B, common portions are denoted by common numbers.

  As apparent from FIG. 59A, in Example 38, the metal plate 2597 of the piezoelectric bimorph element constituting the cartilage conduction vibration source 2525 is arranged in parallel with the front surface of the mobile phone 3401. As a result, the main vibration The cartilage conduction vibration source 2525 is fixed to the housing structure 3426 so that the YY ′ direction that is the direction is perpendicular to the GUI display unit 3405. As is clear from FIG. 59 (B), the piezoelectric bimorph elements constituting the cartilage conduction vibration source 2525 are closely fixed to the inside of the housing structure 3426 without a gap, and are in the main vibration direction (YY ′ direction). The vibration is configured to be easily transmitted to the surface of the housing structure 3426.

  59C, the modified example 38 of FIG. 59C is arranged so that the metal plate 2597 of the piezoelectric bimorph element constituting the cartilage conduction vibration source 2525 is parallel to the side surface of the mobile phone 3401. As a result, in the main vibration direction. The cartilage conduction vibration source 2525 is fixed to the housing structure 3426 so that a certain YY ′ direction is orthogonal to the side surface of the mobile phone 3401. Thus, cartilage conduction can be efficiently obtained when the side surface of the mobile phone 3401 is put on the ear. Since the cartilage conduction vibration source 2525 is fixed and the energy is relatively small in the non-vibration direction (XX ′ direction) of the piezoelectric bimorph element, vibration is generated. You can listen to the sound through cartilage conduction. In the modified example of Example 38 in FIG. 59C, the piezoelectric bimorph element constituting the cartilage conduction vibration source 2525 is in close contact with the inside of the housing structure 3426 in the same manner as in FIG. 59B. It is configured so that vibration in the main vibration direction (YY ′ direction) is easily transmitted to the surface of the housing structure 3426.

  FIG. 60 is a flowchart of the operation of the control unit 3439 in the embodiment 38 of FIG. 60 mainly illustrates the control of the cartilage conduction vibration source 2525, so that the operations are extracted with an emphasis on related functions. The flow of FIG. There is an operation of the control unit 3439 which is not described in FIG. The flow of FIG. 60 starts when the main power supply of the mobile phone 3401 is turned on, and in step S262, the initial startup and the function check of each unit are performed, and the screen display on the GUI display unit 3405 is started. Next, in step S264, the function of the cartilage conduction vibration source 2525 is turned off, and the process proceeds to step S266.

  In step S266, it is checked whether or not the mobile phone 3401 is busy. When a new line is connected, a call is in progress, so the process proceeds to step S268, the transmission processing unit 222 and the reception processing unit 212 are turned on, and the process proceeds to step S270. Even if the line is connected and the telephone is already busy, the process proceeds from step S266 to step S268. In this case, the transmission processing unit 222 and the reception processing unit 212 are kept on, and the process proceeds to step S270.

  In step S270, it is checked whether or not the horizontal stationary state is detected by the acceleration sensor 49. If the horizontal stationary state is not detected, the process proceeds to step S272, the cartilage conduction vibration source 2525 is turned on, and the process proceeds to step S274. When the cartilage conduction vibration source 2525 is already turned on, the on state is continued. On the other hand, when the horizontal still state is detected in step S270, the process proceeds to step S276 to check whether the transmission processing unit 222 and the reception processing unit 212 are on. In this case, since it is on, the process proceeds to step S278. The cartilage conduction vibration source 2525 is turned off and the process proceeds to step S274. When the cartilage conduction vibration source 2525 is already turned off, the off state is continued. In step S274, it is checked whether the call is in progress. If the call is in progress, the process returns to step S270. Thereafter, steps S270 to S278 are repeated as long as the call is in progress. In this way, when the mobile phone 3401 is temporarily placed on a desk or the like during a call, even if the other party's voice is received, the vibration of the cartilage conduction vibration source 2525 is interrupted during that time, Preventing the generation of unpleasant vibration noise. Of course, if the horizontal stationary state is not detected in step S270, the cartilage conduction vibration source 2525 is turned on in step S272 and the call is restored.

  On the other hand, when it is detected in step S266 that the call is not being performed or is not in progress due to the end of the call, the process proceeds to step S280, and the transmission processing unit 222 and the reception processing unit 212 are turned off. The process proceeds to S282. If the transmission processing unit 222 and the reception processing unit 212 are already off, the off state is continued and the process proceeds to step S282. In step S282, it is checked whether there is an incoming call. If there is no incoming call, the process proceeds to step S284 to check whether the GUI mode is set. If it is the GUI mode, the process proceeds to step S286 to perform the impact sensor detection process, and the touch feeling feedback process is performed in step S288, and the process proceeds to step S290. Steps S286 and S288 are processing for directly moving to step S290 if there is no operation, and performing impact sensor detection and touch feeling feedback based on the operation if there is an operation.

  In step S290, the low frequency source 2436 is turned on to prepare for input of a touch feeling feedback signal or the like. In step S270, the presence / absence of horizontal stationary state detection is checked. If it is not in the horizontal stationary state, the process proceeds to step S272, where the cartilage conduction vibration source 2525 is turned on to prepare for input of a touch feeling feedback signal or the like. If the horizontal stationary state is detected in step S270, the process proceeds to step S276. In this case, since the transmission processing unit 222 and the reception processing unit 212 are not turned on, the process proceeds to step S272 and the cartilage conduction vibration source 2525 is used. Turn on. When the low frequency source 2436 is turned on in this way, the cartilage conduction vibration source 2525 is turned on even if a horizontal stationary state is detected. Further, when the cartilage conduction vibration source 2525 is turned on, the impact sensor function is also maintained.

  On the other hand, when an incoming call is detected in step S282, the process proceeds to step S292, a vibrate signal for incoming call notification is output, and the process proceeds to step S290. In this case as well, the low frequency source 2436 is turned on in step S290 and the cartilage conduction vibration source 2525 is turned on in step S272. This is the same as in the GUI mode.

  If it is detected in step S274 that the call is not in progress, the process proceeds to step S296, and it is checked whether the main power supply is turned off. Even when the low frequency source 2436 is turned on in step S290 and the process reaches step S274, it is not in a call and the process proceeds to step S296. If it is not detected in step S284 that the GUI mode is selected, the process proceeds to step S294 where the low frequency source 2436 is turned off and the process proceeds to step 296. When it is detected in step S296 that the main power supply has been turned off, the flow ends. On the other hand, when the main power supply OFF is not detected in step S296, the process returns to step S266, and thereafter, steps S266 to S296 are repeated to cope with various changes in the situation.

  The various features of each of the embodiments described above are not limited to the above embodiments, and can be implemented in other embodiments as long as the advantages can be enjoyed. Various features of each embodiment are not limited to individual embodiments, and can be appropriately replaced or combined with features of other embodiments. For example, in the above-described Example 38, it is related to the control of the cartilage conduction vibration source 2525 related to horizontal stationary, and if it is checked whether or not it is the videophone mode, the cartilage conduction vibration source 2525 in step S278 in FIG. 60 is applicable. It can be configured to turn on the videophone speaker in conjunction with turning off.

  Further, the aspect in which the cartilage conduction vibration source 2525 is supported on the casing structure 3426 of the mobile phone 3401 in the thirty-eighth embodiment is not limited to the rigid direct fixation as in the thirty-eighth embodiment. For example, indirect rigid support via another holding structure may be used as long as vibration can be transmitted. The support is not necessarily rigid, and may be held via an elastic body as long as the acoustic impedance approximates and vibration is transmitted to the surface of the housing.

  FIG. 61 is a cross-sectional view of Example 39 and its various modifications according to the embodiment of the present invention, and is configured as mobile phones 3501a to 3501d. Example 39 is the same as Example 38 shown in FIGS. 58 to 60 except for the arrangement of a cartilage conduction vibration source 2525 (hereinafter, described as an example of a piezoelectric bimorph element 2525) constituted by a piezoelectric bimorph element. Since they are common, illustrations other than those necessary for the description are omitted, and for the illustrated parts, the same reference numerals are given to the common parts, and the description is omitted unless necessary.

  FIG. 61A relates to Example 39, and is a cross-sectional view of the cellular phone 3501a cut from a side surface and a plane perpendicular to the display surface of the GUI display portion 3405 as viewed from above. As is apparent from the drawing, the piezoelectric bimorph element 2525 is disposed along one side surface of the mobile phone 3501a as in the modification of the embodiment 38 in FIG. However, in Example 39 of FIG. 61, the main vibration direction (Y-Y ′ direction) of the piezoelectric bimorph element 2525 is supported not to be perpendicular to the side surface but to be inclined with respect to the side surface. More specifically, the side surface of Example 39 is provided with an inclined side surface 3507a provided by chamfering the four side edge portions, and the piezoelectric bimorph element 2525 has a main vibration inside one of the inclined side surfaces 3507a. The surface (“the outer surface of the piezoelectric bimorph 2525 parallel to the metal plate 2597” is defined as “main vibration surface”) is supported by bonding. As a result, the main vibration direction of the piezoelectric bimorph element 2525 (the Y-Y ′ direction and the direction perpendicular to the main vibration surface) is perpendicular to the inclined side surface 3507a.

  With such a structure, the user of the mobile phone 3501a can easily apply the inclined side surface 3507a of the mobile phone 3501a to the ear cartilage while preventing the display surface of the GUI display unit 3405 from coming into contact with the cheek and getting dirty. it can. As already described in other embodiments, the audio-related configuration is grouped on the side of the mobile phone, and the configuration in which the visual-related configuration is grouped on the front of the mobile phone is the side when the mobile phone 3501a is placed on the face such as an ear. When viewing the mobile phone 3501a with the eyes, the two sides of the mobile phone 3501a can be used properly so that the front is used, and the front surface of the mobile phone 3501a is prevented from being stained with the face of the GUI display unit 3405 being stained. It is meaningful in being able to. However, when the side surface is used, it is also conceivable to use the mobile phone 3501a in contact with the ear so that the display surface of the GUI display unit 3405 faces slightly toward the face rather than completely contacting the side surface with the ear vertically. . Example 39 in FIG. 61A is configured assuming such use.

  As described above, in Example 39 of FIG. 61A, the direction of the arrow 25a is the main vibration direction on the inclined side surface 3507a to which the piezoelectric bimorph element 2525 is bonded, but the main vibration direction is inclined. Therefore, a vibration component in a direction perpendicular to the display surface of the GUI display unit 3405 indicated by an arrow 25b and a side vibration component indicated by an arrow 25c are generated. As a result, it is possible to listen to sound even when either the front surface (display surface of the GUI display unit 3405) or the back surface of the mobile phone 3501a or both sides of the mobile phone 3501a is applied to the ear cartilage. Accordingly, any position of the mobile phone 3501a can be arbitrarily used with the direction of the arrow 25a as the best position. In Example 39 in FIG. 61A, since the inclined side surface 3507a is inclined closer to the display surface of the GUI display portion 3405, the vibration component in the direction indicated by the arrow 25b is the direction indicated by the arrow 25c. It is larger than the vibration component.

  FIG. 61B shows a first modification of the embodiment 39. The mobile phone 3501b has a direction indicated by an arrow 25b by setting the inclination of the inclined side surface 3507b to approximately 45 degrees with respect to the display surface of the GUI display portion 3405. And the vibration component in the direction indicated by the arrow 25c are substantially equal. On the other hand, FIG. 61C shows a second modification of the embodiment 39, in which the mobile phone 3501c has an inclined side surface 3507c inclined closer to the side surface, so that the vibration component in the direction indicated by the arrow 25c is better. The vibration component in the direction indicated by the arrow 25b is configured to be larger than the vibration component.

  61 (A) to 61 (C) are extreme illustrations for explaining the general tendency, but there is an extreme directivity to the vibration of the piezoelectric bimorph element 2525 after being transmitted to the mobile phones 3501a to 3501c. Since it is not maintained, a slight change in the direction of the main vibration direction of the piezoelectric bimorph element 2525 provided inside the mobile phone does not cause a change in the vibration component sharply. However, in consideration of the best position for contact with the ear cartilage, it is significant to adjust the arrangement direction of the piezoelectric bimorph element 2525 as in the 39th embodiment and its modification. For example, in the case where flat inclined side surfaces are provided as shown in FIGS. 61A to 61C, the inclinations of the front surfaces of the mobile phones 3501a to 3501c (display surface of the GUI display unit 3405) and the inclined side surfaces 3507a to 3507c are 30 degrees. It is practical to be between about 60 degrees and about 60 degrees.

  FIG. 61D shows a third modification of the embodiment 39, and the side surface of the mobile phone 3501d is a semi-cylindrical surface 3507d. Further, the main vibration direction of the arrow 25a is pressed and supported inside the semi-cylindrical surface 3507d so as to be approximately 45 degrees with respect to the display surface of the GUI display unit 3405. The vibration component in the direction indicated by the arrow 25b and the arrow 25c The vibration components in the direction are configured to be substantially equal. Thus, the user can apply any location from the side semi-cylindrical surface 3507d to the front surface (display surface of the GUI display unit 3405) or the back surface of the mobile phone 3501d on the ear cartilage. In the third modification of Example 39 in FIG. 61D, the main vibration direction of the arrow 25a is not limited to about 45 degrees with respect to the display surface of the GUI display unit 3405, but from FIG. Various inclinations can be set as in (C). Furthermore, the holding inclination can be adjusted, and it is possible to provide a service for changing the inclination according to the desire of the user.

  FIG. 62 is a cross-sectional view and a perspective view of essential parts of Example 40 and its various modifications according to the embodiment of the present invention, and is configured as mobile phones 3601a to 3601c. In addition, with respect to Example 40 as well, Example 38 shown in FIGS. 58 to 60 except for the arrangement of a cartilage conduction vibration source 2525 (hereinafter, described as a piezoelectric bimorph element 2525 exemplarily) composed of a piezoelectric bimorph element. Therefore, illustrations of parts other than those necessary for the description are omitted, and for the illustrated parts, the same reference numerals are given to the common parts and the description is omitted unless necessary.

  FIG. 62A relates to Example 40 and is a cross-sectional view of the cellular phone 3601a cut from a plane perpendicular to the side surface 3607 and the display surface of the GUI display portion 3405 and viewed from above. As is apparent from the drawing, the piezoelectric bimorph element 2525 is arranged along one side surface 3607 of the mobile phone 3601a as in the modification of the embodiment 38 in FIG. However, in Example 40 of FIG. 62, the main vibration direction (YY ′ direction) of the piezoelectric bimorph element 2525 is not perpendicular to the side surface but is inclined with respect to the side surface 3607 as in Example 39. . In Example 40, the vibrations from the main vibration surfaces on both sides of the piezoelectric bimorph element 2525 are transmitted to the side surface 3607 and the display surface of the GUI display unit 3405 that are orthogonal to each other.

  Specifically, the casing of the mobile phone 3601a of the fortieth embodiment in FIG. 62A is provided with a first support structure 3600a extending inward from the side surface 3607, and one main vibration surface of the piezoelectric bimorph element 2525 is provided. And a second support structure 3600b extending inward from the housing on the display surface side of the GUI display portion 3405 is provided and is bonded to the other main vibration surface of the piezoelectric bimorph element 2525. As a result, the main vibration in the direction indicated by the arrow 25a is decomposed into a vibration component indicated by the arrow 25d and a vibration component indicated by the arrow 25e in the direction orthogonal thereto, and the housing on the display surface side of the side surface 3607 and the GUI display unit 3405, respectively. It is transmitted to the body surface. In this way, the vibrations of the two main vibration surfaces in the piezoelectric bimorph element 2525 are disassembled and transmitted in the direction orthogonal to the mobile phone 3601a, and any part of the front, back and side of the mobile phone 3601a is applied to the ear cartilage. Also, the vibration of the piezoelectric bimorph element 2525 can be heard. In Example 40 in FIG. 62A, the first support structure 3600a and the second support structure 3600b are provided so as to sandwich the same portion of the piezoelectric bimorph element 2525 from both sides.

  On the other hand, FIG. 62 (B) is a transparent perspective view of the main part of the mobile phone 3601b of the first modification of the embodiment 40 as viewed from the inside. As is apparent from FIG. 62 (B), in the first modified example of the embodiment 40, the first support structure 3600a is attached so that the opposing main vibration surfaces of the piezoelectric bimorph element 2525 are adhered to the mobile phone 3601b at a position where they are different from each other. And the 2nd support structure 3600b is provided. This facilitates the bonding work of the piezoelectric bimorph element 2525, reduces the degree of freedom of vibration of the piezoelectric bimorph element 2525, and can efficiently transmit the vibration to the housing of the mobile phone 3601b.

  FIG. 62C is a cross-sectional view of a mobile phone 3601c according to a second modification of the embodiment 40 cut from a side surface 3607a and a plane perpendicular to the upper surface and viewed from the side. In Example 40 of FIG. 62A, the main vibration direction of the piezoelectric bimorph element 2525 was decomposed into vibration components in directions perpendicular to the front surface and the side surface, respectively, but the second example of Example 40 of FIG. In the modification, the main vibration direction of the piezoelectric bimorph element 2525 is decomposed into vibration components in directions perpendicular to the front surface and the upper surface, respectively.

  Specifically, as is apparent from FIG. 62C, in the second modification of the embodiment 40, the casing of the mobile phone 3601c is provided with a first support structure 3600c extending inward from the upper surface, A second support structure 3600d that is bonded to one main vibration surface of the piezoelectric bimorph element 2525 and extends inward from the housing on the display surface side of the GUI display unit 3405 is provided, and the other main vibration surface of the piezoelectric bimorph element 2525 is provided. It is glued to. As a result, the main vibration in the direction indicated by the arrow 25a is decomposed into a vibration component indicated by the arrow 25f and a vibration component indicated by the arrow 25e in the direction orthogonal thereto, and the housing surface on the display surface side of the GUI display unit 3405, respectively. Is transmitted to. In this way, the vibrations of the two main vibration surfaces in the piezoelectric bimorph element 2525 are disassembled and transmitted in the direction perpendicular to the mobile phone 3601c, and any part of the front, back, top and bottom surfaces of the mobile phone 3601c is used as the ear cartilage. The vibration of the piezoelectric bimorph element 2525 can be heard even if applied. 62C, the second modification of the embodiment 40 is similar to FIG. 62A, in which the first support structure 3600c and the second support structure are sandwiched between the same portions of the piezoelectric bimorph element 2525 from both sides. Although the cross-sectional view of the shape provided with 3600d is shown, it may be configured such that the different parts on both sides of the piezoelectric bimorph element 2525 are bonded as shown in FIG.

  The second modification of the embodiment 40 in FIG. 62C is suitable for listening to the sound by attaching the front or back surface of the mobile phone 3601c to the ear cartilage, and in addition to slightly pushing up the upper surface of the mobile phone 3601c. In addition to preventing the display surface from touching the face and getting dirty, it is possible to close the external auditory canal with the tragus by increasing the push-up force on the top surface, facilitating the effect of the ear plug bone. It is also suitable for generating.

  FIG. 63 is a cross-sectional view related to Example 41 according to the embodiment of the present invention, which is configured as a mobile phone 3701. In addition, also in Example 41, Example 38 shown in FIGS. 58 to 60 except for the arrangement of a cartilage conduction vibration source 2525 (hereinafter, described as a piezoelectric bimorph element 2525 exemplarily) composed of a piezoelectric bimorph element. Therefore, illustrations of parts other than those necessary for the description are omitted, and for the illustrated parts, the same reference numerals are assigned to the common parts, and the description is omitted unless necessary.

  FIG. 63A is a cross-sectional view of the cellular phone 3701 according to the example 41 cut from a plane perpendicular to the side surface 3707 and the display surface of the GUI display unit 3405 and viewed from above. As is apparent from the drawing, the piezoelectric bimorph element 2525 is disposed along the upper surface of the mobile phone 3701 as in the embodiment 38 in FIG. The main vibration direction (Y-Y ′ direction) of the piezoelectric bimorph element 2525 is a direction perpendicular to the display surface of the GUI display unit 3405. Specifically, the central portion of the piezoelectric bimorph element 2525 is bonded to the support structure 3700a extending inward from the back surface of the mobile phone 3701, and both end portions of the piezoelectric bimorph element 2525 are both supported as a free end. To do. As a result, the reaction of free vibration at both ends of the piezoelectric bimorph element 2525 as indicated by the arrows 25g and 25h is transmitted from the central part of the piezoelectric bimorph element 2525 to the casing of the mobile phone 3701 through the support structure 3700a. .

  63B is a cross-sectional view of the BB cross section of FIG. 63A viewed from the side of the mobile phone 3701. The piezoelectric bimorph element 2525 is supported by a support structure 3700a extending inward from the back surface of the mobile phone 3701. FIG. It is understood that the piezoelectric bimorph element 2525 is supported and that the piezoelectric bimorph element 2525 is disposed along the top surface of the mobile phone 3701. As shown in FIG. 63, a structure in which a part of the main vibration surface of the piezoelectric bimorph element 2525 is supported inside the casing of the mobile phone 3701 and a part of the main vibration surface is floated to allow free vibration is used. This is suitable for efficiently transmitting the vibration to the mobile phone casing without making substantial changes to the acoustic characteristics unique to 2525. The support at the center of the piezoelectric bimorph element 2525 as in Example 41 is particularly suitable for a piezoelectric bimorph element in which the terminal is located at the center of the element as in Example 32 shown in FIG.

  FIG. 64 shows various modifications of the embodiment 41 of FIG. 63, and the mobile phone 3701 is perpendicular to the side surface 3707 and the display surface of the GUI display unit 3405 in the same manner as FIG. It is a cross-sectional view seen from above by cutting along a plane.

  FIG. 64A shows a first modification of the embodiment 41. In particular, the terminal 2525b of the piezoelectric bimorph element 2525 is located at the end of the element, the center of gravity is unbalanced, and an arrow is connected by electrode connection to the element. This is suitable when the free vibration on the terminal 2525b side indicated by 25g is somewhat restrained compared to the vibration at the complete free end indicated by the arrow 25h. The first modified example in FIG. 64A is obtained by shifting the position of the support structure 3701b to the left in the drawing as compared with the support structure 3700a of the example 41 in FIG. 63 in order to compensate for these imbalances.

  FIG. 64B shows a second modification of the embodiment 41, in which both ends of the piezoelectric bimorph element 2525 are bonded and supported to a pair of support structures 3700c and 3700d extending inward from the back surface of the mobile phone 3701. Is. This frees the vibration of the central portion of the piezoelectric bimorph 2525 indicated by the arrow 25i, and the reaction of this vibration is transmitted to the housing of the mobile phone 3701 through the support structures 3700c and 3700d.

  FIG. 64C shows a third modification of the embodiment 41, in which the piezoelectric bimorph element 2525 is supported by the cantilever structure by bonding the terminal 2525b side to the support structure 3700e extending inward from the back surface of the mobile phone 3701. It is a thing. Thereby, the reaction of the vibration at the free end of the piezoelectric bimorph 2525 indicated by the arrow 25h is transmitted to the housing of the mobile phone 3701 through the support structure 3700e.

  FIG. 64D is a fourth modification example of Example 41 in which the piezoelectric bimorph element 2525 is bonded to the inside of the casing on the back surface of the mobile phone 3701 through a double-sided adhesive sheet 3700f made of an elastic body. . The double-sided adhesive sheet 3700f made of this elastic body is made of an elastic body (silicone rubber, a mixture of silicone rubber and butadiene rubber, natural rubber, or air bubbles) having conductivity from the piezoelectric bimorph element 2525 to the housing. Etc., etc., etc. By such elastic bonding, each part of the piezoelectric bimorph element 2525 obtains the degree of freedom of vibration indicated by the arrows 25g, 25h, 25i and the like, and the vibration is transmitted to the casing of the mobile phone 3701 through the double-sided adhesive sheet 3700f. The

  Various features of each embodiment described above are not limited to individual embodiments, and can be appropriately replaced or combined with features of other embodiments. For example, the support structure in consideration of the free vibration of the piezoelectric bimorph element 2525 of the embodiment 41 in FIGS. 63 and 64 is also used when the piezoelectric bimorph 2525 in the embodiment 39 in FIG. 61 and the piezoelectric bimorph 2525 in the embodiment 40 in FIG. Can be adopted. Specifically, the support structure in FIG. 62B has a common point in the sense that the both ends of the piezoelectric bimorph element 2525 are supported and the central portion is free. In addition to this example, for example, in the 39th embodiment of FIG. 61 and its modification, the entire vibration surface is not bonded to the inside of the inclined side surface, but the support structure 3700a of FIG. It is also possible to provide a similar projecting portion and attach only the central portion of the piezoelectric bimorph element 2525 to the both end portions to be free ends. Alternatively, in the embodiment 39 of FIG. 61 and the modification thereof, an elastic body such as the fourth modification of the embodiment 41 of FIG. 64D can be interposed when the piezoelectric bimorph element 2525 is bonded. .

  The implementation of the features of the present invention described above is not limited to the embodiments in the above-described embodiments, and can be implemented by other embodiments as long as the advantages can be enjoyed. For example, in Embodiment 39 of FIG. 61, the piezoelectric bimorph element 2525 is described as being bonded and supported inside the inclined slope inside the mobile phone, but the specific structure of support is not limited to this. For example, a structure in which a groove is provided on the outer side of the inclined slope and the piezoelectric bimorph element 2525 is fitted into the groove from the outside may be employed in accordance with Example 31 of FIG.

  FIG. 65 is a cross-sectional view relating to Example 42 according to the embodiment of the present invention, and is configured as a mobile phone 3801. Note that Example 42 is also shown in FIGS. 58 to 60 except for the arrangement and holding structure of the cartilage conduction vibration source 2525 (hereinafter, described as the piezoelectric bimorph element 2525 exemplarily) composed of piezoelectric bimorph elements. Since this embodiment is common to Example 38, illustrations other than those necessary for the description are omitted, and for the illustrated portions, the same reference numerals are given to the common portions, and the description is omitted unless necessary.

  FIG. 65A is a cross-sectional view of the cellular phone 3801 of Example 42 cut from a side surface 3807 and a plane perpendicular to the display surface of the GUI display unit 3405 and viewed from above. FIG. 65B is a cross-sectional view of the BB cross section of FIG. 65A viewed from the side of the mobile phone 3801. As is apparent from FIG. 65A, the piezoelectric bimorph element 2525 is arranged along the upper surface of the mobile phone 3801 in the same manner as in the embodiment 38 in FIG. 59A, the embodiment 41 in FIG. The main vibration direction of the piezoelectric bimorph element 2525 is a direction perpendicular to the display surface of the GUI display unit 3405 as indicated by an arrow 25g. As described above, Example 42 in FIG. 65 is one in which one side of the piezoelectric bimorph element 2525 is supported by a cantilever structure in the same manner as the modification of Example 41 shown in FIG. 64 (C). Thus, the reaction of the vibration at the free end of the piezoelectric bimorph 2525 indicated by the arrow 25g is transmitted to the casing of the mobile phone 3801.

  65 differs from the modified example of the embodiment 41 shown in FIG. 64C in that the upper corner, which is a portion suitable for being applied to the ear cartilage of the tragus etc. in the housing of the mobile phone 3801. In addition to making the 3824 vibrate particularly efficiently, the upper corner 3824, which is also a part to which a direct impact is easily applied, is prevented from becoming a structure that is vulnerable to a collision. Specifically, as shown in FIGS. 65A and 65B, one end of the piezoelectric bimorph element 2525 is formed as a holding end 2525c in a hole in a support structure 3800a extending inward from the side surface 3807 and the upper surface 3807a of the mobile phone 3801. Plugged and held. Note that the holding end 2525c is one end where the terminal 2525b is not provided. In this way, by setting one end where the terminal 2525b is not provided as the holding end 2525c, the support position can be brought close to the upper corner 3824. On the other hand, the other end provided with the terminal 2525b is vibrated as a free end. Note that the terminal 2525b is connected to a circuit 3836 mounted on the housing and a flexible wiring 3836a, and free vibration at the other end where the terminal 2525b is provided is not substantially hindered. The circuit 3836 includes an amplifier for boosting the drive voltage of the piezoelectric bimorph element 2525.

  With the above configuration, the reaction of free vibration at the other end of the piezoelectric bimorph element 2525 indicated by the arrow 25g is transmitted from the holding end 2525c of the piezoelectric bimorph element 2525 to the housing of the mobile phone 3801 through the support structure 3800a. . At this time, as described above, the support structure 3800a is configured to extend inwardly from the side surface 3807 and the upper surface 3807a of the mobile phone 3801 at the upper corner 3824 of the housing, so that the reaction of free vibration at the other end of the piezoelectric bimorph element 2525 is prevented. Efficiently transmitted to the upper corner 3824. In addition, as described above, since the piezoelectric bimorph element 2525 is held inside the casing of the mobile phone 3801, the upper corner 3824, which is a part where a direct impact is easily applied, does not become a structure that is vulnerable to collision.

  FIG. 65C shows a first modification of the embodiment 42, in which the piezoelectric bimorph element 2525 is held so that the main vibration direction is perpendicular to the upper surface 3807a as indicated by an arrow 25j. The other configuration is the same as that of the embodiment 42 shown in FIGS. 65A and 65B, and the description thereof is omitted. The first modified example in FIG. 65C is suitable for use on the ear cartilage in such a manner that the upper surface side of the upper corner 3824 of the mobile phone 3801 is slightly pushed up because there are many vibration components in the vertical direction on the upper surface 3807a. . In addition to preventing the display surface of the GUI display unit 3405 from touching the face even by such use, the outer ear canal is blocked with the tragus by increasing the push-up force of the upper surface 3807a, and the effect of the ear plug bone is easily generated. It is suitable also in making it. Note that the first modification in FIG. 65C is similar to the embodiment 42 in FIGS. 65A and 65B, in which the display surface side of the upper corner 3824 of the mobile phone 3801 is applied to the ear cartilage. Can also be used. In this case as well, the external ear canal can be blocked with the tragus by increasing the force with which the display surface side is pressed against the ear cartilage, and the ear plug bone conduction effect can be easily generated.

  FIG. 65D is a second modification of the embodiment 42, and the main vibration direction is inclined 45 degrees with respect to the upper surface 3807a as indicated by an arrow 25k. As a result, the vibration component is decomposed in the direction perpendicular to the upper surface 3807a and the direction perpendicular to the display surface of the GUI display unit 3405 perpendicular to the upper surface 3807a. Conductivity can be obtained.

  FIG. 66 is a cross-sectional view related to Example 43 according to the embodiment of the present invention, and is configured as a mobile phone 3901. Note that Example 43 is also shown in FIGS. 58 to 60 except for the arrangement and holding structure of the cartilage conduction vibration source 2525 (hereinafter, described as the piezoelectric bimorph element 2525 exemplarily) composed of piezoelectric bimorph elements. Since this embodiment is common to Example 38, illustrations other than those necessary for the description are omitted, and for the illustrated portions, the same reference numerals are given to the common portions, and the description is omitted unless necessary.

  FIG. 66A is a cross-sectional view of the cellular phone 3901 according to the forty-third embodiment as cut from a plane perpendicular to the upper surface 3907a and the display surface of the GUI display portion 3405 and viewed from the side. FIG. 66B is a cross-sectional view of the BB cross section of FIG. 66A as viewed from above the mobile phone 3901. In Example 43 of FIG. 66, as in Example 42 of FIG. 65, one end of the piezoelectric bimorph element 2525 where the terminal 2525b is not provided is supported by the cantilever structure as a holding end 2525c. Example 43 differs from Example 42 in that the piezoelectric bimorph element 2525 is parallel to the side surface of the mobile phone 3901 as in Example 39 and its modification in FIG. 61, as is apparent from FIG. 66 (A). It is a point arranged in The main vibration direction of the piezoelectric bimorph element 2525 is a direction perpendicular to the display surface of the GUI display unit 3405 as indicated by an arrow 25m.

  Therefore, also in the embodiment 43 of FIG. 66, the upper corner 3924 which is a portion suitable for being applied to the ear cartilage such as tragus in the casing of the mobile phone 3901 vibrates particularly efficiently, and the upper corner 3924 collides. It is possible to avoid a weak structure. Specifically, in the same manner as in Example 42, as shown in FIGS. 66A and 66B, the piezoelectric bimorph element 2525 is inserted into the hole of the support structure 3900a extending inwardly from the side surface and top surface of the mobile phone 3901. One end is inserted and held as a holding end 2525c. Therefore, also in Example 43, the support position can be brought close to the upper corner 3924 by setting one end of the piezoelectric bimorph element 2525 not provided with the terminal 2525b as the holding end 2525c. The other points are the same as in Example 42, and thus the description thereof is omitted.

  FIG. 66C shows a first modification of the embodiment 43, in which the piezoelectric bimorph element 2525 is held so that the main vibration direction is perpendicular to the side surface 3907 as indicated by the arrow 25n. The other configuration is the same as that of the embodiment 43 shown in FIGS. 66C has many vibration components in a direction perpendicular to the side surface 3907. Therefore, the side surface 3907 of the mobile phone 3901 is put on the ear cartilage and the face touches the display surface of the GUI display portion 3405. Suitable for avoiding use. 66C, the display surface side of the mobile phone 3901 is used by touching the ear cartilage in the same manner as in the embodiment 43 of FIGS. 66A and 66B. You can also. Also in this case, when the upper corner 3924 is pressed against the ear cartilage, the external ear canal can be blocked with the tragus by increasing the force, and the ear plug bone conduction effect can be easily generated.

  FIG. 66D shows a second modification of the embodiment 43, and the main vibration direction is inclined 45 degrees with respect to the side surface 3907 as indicated by an arrow 25p. As a result, the vibration component is decomposed in the direction perpendicular to the side surface 3907 and the direction perpendicular to the display surface of the GUI display unit 3405 perpendicular thereto, and the same degree of cartilage is obtained regardless of which direction the upper corner 3924 is brought into contact with the ear cartilage. Conductivity can be obtained.

  FIG. 67 is a cross-sectional view related to Example 44 according to the embodiment of the present invention, and is configured as a mobile phone 4001. Note that Example 44 is also the same as Example 38 shown in FIGS. 58 to 60 except for the structure, arrangement, and holding structure of the cartilage conduction vibration source 2525 configured by the piezoelectric bimorph element, and therefore, a part necessary for the description. Illustrations other than those are omitted, and for the illustrated parts, the same reference numerals are given to common parts, and the description is omitted unless necessary.

  FIG. 67A is a cross-sectional view (including some conceptual block diagrams) of the cellular phone 4001 according to the embodiment 44 cut from a side surface and a plane perpendicular to the display surface of the GUI display unit 3405 and viewed from above. FIG. 66 is a cross-sectional view that can be understood in the same manner as in Example 42 of FIG. 67B1 and 67B2 are cross-sectional views of main parts when the B1-B1 cross section and the B2-B2 cross section of FIG. 67A are viewed from the side of the mobile phone 4001, respectively. FIG. 67C is a detailed cross-sectional view (including a partial conceptual block diagram) of an important part in FIG. 67A. 67B, 67B2, and 67C, portions corresponding to those in FIG. 67A are denoted by the same reference numerals, and description thereof is omitted unless necessary.

  In Example 44 of FIG. 67, the piezoelectric bimorph element 2525 is supported in parallel with the upper surface in the same manner as Example 42 of FIG. 65, but one end side where the terminal 2525b is provided has a cantilever structure. The difference from Example 42 is that the circuit 4036 for driving the piezoelectric bimorph element 2525 is integrated with the piezoelectric bimorph element 2525 and configured as a vibration unit. It should be noted that the upper corner, which is a portion suitable for being applied to the ear cartilage such as a tragus, in the casing of the mobile phone 4001 vibrates particularly efficiently and avoids the upper corner from becoming a structure that is vulnerable to collision. This is the same as Example 42 in that it can be performed.

  More specifically, as shown in FIGS. 67 (A) and 67 (C), the terminal 2525b of the piezoelectric bimorph element 2525 is connected to a circuit 4036 mounted on the terminal 2525b by a wire 4036a. The terminal 2525b side of the piezoelectric bimorph element 2525 and the circuit 4036 are repackaged in a resin package 4025 whose acoustic impedance approximates that of the resin packaging the piezoelectric bimorph element 2525, and integrated as a vibration unit. Note that a connection pin 4036b protrudes from the circuit 4036 through the resin package 4025 and is in contact with a control unit / power supply unit 4039 fixed to the housing side of the mobile phone 4001.

  As shown in FIG. 67C, the circuit 4036 includes an amplifier 4036c for boosting the drive voltage of the piezoelectric bimorph element 2525, and an adjustment unit 4036d for electrically compensating for variations in the piezoelectric bimorph element 2525. The adjustment unit 4036d performs adjustment so that the piezoelectric bimorph element 2525 operates without variation with respect to power supply and control from the control unit / power supply unit 4039. After adjustment, re-packaging is performed using the resin package 4025. Alternatively, the adjustment operation unit or the adjustment circuit pattern of the adjustment unit 4036d may be repackaged so as to be exposed on the surface of the resin package 4025, and adjustment may be performed after assembly.

  In the embodiment 44 of FIG. 67, the support structure 4000a extending inward from the side surface and the upper surface 4007a of the mobile phone 4001 is provided in the same manner as the embodiment 42, and the resin package 4025 of the vibration unit formed by repackage in the hole is provided. The piezoelectric bimorph element 2525 is held by inserting the portion. As described above, in Example 44, one end side where the terminal 2525b is provided is supported, and one end 2525c where the terminal 2525b is not provided is a free vibration end. The reaction of free vibration at one end 2525c is transmitted from the resin package 4025 to the housing of the mobile phone 4001 through the support structure 4000a.

  Various features shown in the embodiments of the present invention can be freely replaced or combined as long as the advantages can be utilized. For example, Example 44 in FIG. 67 supports the piezoelectric bimorph element 2525 parallel to the top surface, and the main vibration direction is a direction perpendicular to the display surface of the GUI display unit 3405 as indicated by an arrow 25h. Yes. However, the integrated package structure of the piezoelectric bimorph element 2525 and the circuit 4036 shown in the embodiment 44 is not limited to the arrangement shown in FIG. 67, and the embodiment 42 shown in FIGS. 65 (C) and 65 (D). This modification can also be adopted in support arrangements such as the embodiment 43 shown in FIGS. 66 (A) to 66 (D) and the modification thereof. The adoption may be performed in accordance with the relationship between FIG. 65A and FIG. 67A. In any case, the terminal 2525b in the piezoelectric bimorph element 2525 is provided in the same manner as in FIG. One end on the side that is present becomes the support side.

  Also, the support structures 3800a, 3900a, and 4000a in the example 42 to the example 44 in FIG. 67 are not limited to those extending inward from the side surface and the upper surface of the mobile phone 4001, and various support structures are possible. For example, the support structure may be configured to extend from only one of the side surface or the top surface. Furthermore, those extending from either the front or the back, those extending from the front and the top, those extending from the back and the top, those extending from the side and the front, those extending from the side and the back, three surfaces of the top, the side and the front Various structures such as those extending from the back side of the corners are possible as an extension from. In any case, by providing the support portion of the piezoelectric bimorph element 2525 or the resin package 4025 integrated with the piezoelectric bimorph element 2525 inside the casing in the vicinity of the corner portion, avoiding the corner portion from becoming a structure that is vulnerable to collision, The corners can be vibrated efficiently by the reaction of free vibration.

  Further, the various features shown in each embodiment of the present invention are not necessarily unique to each embodiment, and the features of each embodiment are appropriately modified and utilized as long as the advantages can be utilized. Or can be used in combination. For example, in Example 1 of FIG. 1, Example 2 of FIG. 5, Example 3 of FIG. 6, and Example 35 of FIG. 55, two piezoelectric bimorph elements for the right ear and the left ear are provided in the mobile phone, respectively. Provided. However, an example in which a plurality of piezoelectric bimorph elements are respectively provided at a plurality of locations of a mobile phone in order to obtain desired cartilage conduction from a plurality of directions is not limited thereto. On the other hand, in the 39th embodiment of FIG. 61, the 40th embodiment of FIG. 62, the second modification of the embodiment 42 in FIG. 65 (D) and the second modification of the embodiment 43 in FIG. When generating cartilage conduction in a plurality of directions such as the upper surface and the front surface, the vibration component is divided by making the main vibration direction of one piezoelectric bimorph element oblique, but this is the configuration that generates cartilage conduction in a plurality of directions. It is not limited to.

  FIG. 68 is a cross-sectional view of Example 45 according to the embodiment of the present invention, showing another example of a configuration that generates cartilage conduction in a plurality of directions such as the above-described side surface and front surface, and top surface and front surface. It is. Specifically, in the mobile phone 4101a of the embodiment 45 shown in FIG. 68 (A) and the mobile phone 4101b of the modification shown in FIG. 68 (B), one piezoelectric bimorph element as shown in the embodiment 40 of FIG. Instead of dividing the vibration component, two piezoelectric bimorph elements are employed in accordance with the embodiment 35 of FIG. The piezoelectric bimorph elements 4124 and 4126 are supported on the inner side of the mobile phone casing so as to be different from each other by 90 degrees so that the main vibration directions are parallel to the front and side surfaces, or the front and top surfaces, respectively. Accordingly, cartilage conduction is generated in a plurality of directions such as the side surface and the front surface and the upper surface and the front surface in the same manner as in the embodiment 40 of FIG. Example 45 in FIG. 68 has the same configuration as Example 40 in FIG. 62 except that two piezoelectric bimorph elements are used, so the same parts are denoted by the same reference numerals and the remaining description is omitted. Incidentally, FIGS. 68 (A) and 68 (B) correspond to FIGS. 62 (A) and 62 (C), respectively.

  68 illustrates an arrangement in which the longitudinal directions of the two piezoelectric bimorph elements are parallel to each other, the arrangement of the plurality of piezoelectric bimorph elements is not limited to this. For example, an arrangement in which the longitudinal directions of two piezoelectric bimorph elements are orthogonal to each other, such as one along the upper surface and the other along the side surface, is also possible. Furthermore, the support of the plurality of piezoelectric bimorph elements having different main vibration directions is not limited to the inside of the cellular phone case as shown in FIG. 68. For example, Embodiments 30 and 31 shown in FIGS. As in the modification, it may be supported outside the housing.

  FIG. 69 is a perspective view and a cross-sectional view related to Example 46 according to the embodiment of the present invention, and is configured as a mobile phone 4201. The embodiment 46 is also common to the embodiment 38 shown in FIGS. 58 to 60 except for the arrangement of the cartilage conduction vibration source 2525 constituted by the piezoelectric bimorph element and the holding structure thereof, and therefore, the portions other than those necessary for the description are provided. While illustration is omitted, the same reference numerals are assigned to common parts, and the description is omitted unless necessary.

  FIG. 69A is a perspective view of the mobile phone 4201 according to the embodiment 44 as viewed from the front, and the four corners that are likely to be exposed to collision when the mobile phone 4201 is accidentally dropped or the like are elastic as a protector. Body parts 4263a, 4263b, 4263c and 4263d are provided. The inner side of the elastic body parts 4263a and 4263b at the upper two corners also serves as a holding part for the piezoelectric bimorph element, and the outer side of the elastic body parts 4263a and 4263b also serves as a cartilage conduction part that contacts the ear cartilage. For this reason, at least the elastic body portions 4263a and 4263b have an elastic material (silicone rubber, a mixture of silicone rubber and butadiene rubber, natural rubber, or air bubbles sealed in the acoustic impedance similar to that of the ear cartilage. A structure, or a structure in which a single air bubble group such as that found in a transparent packing sheet material is separated and sealed with a synthetic resin thin film is employed.

  FIG. 69B is a cross-sectional view of the cellular phone 4201 cut along a plane perpendicular to the front surface and side surfaces along the B1-B1 cut surface in FIG. 69A. As is clear from FIG. 69 (B), both ends of the piezoelectric bimorph element 2525 are supported by the inside of the elastic body portions 4263a and 4263b. Note that the elastic body portion 4263a supports the terminal 2525b side of the piezoelectric bimorph element 2525, and a flexible wiring 3836a that connects the terminal 2525b and the circuit 3836 passes therethrough.

  The elastic body portions 4263a and 4263b are fixedly supported on the casing of the mobile phone 4201, but due to the elasticity of the elastic body portions 4263a and 4263b, a certain degree of freedom of movement due to vibration is secured at both ends of the piezoelectric bimorph element 2525. In addition, the vibration inhibition of the piezoelectric bimorph element 2525 is reduced. Further, the central portion of the piezoelectric bimorph element 2525 is not in contact with anywhere, and free vibration is possible. The outer sides of the elastic body portions 4263a and 4263b form a corner outer wall of the mobile phone 4201, which serves as a protector for collision with the outside and also serves as a cartilage conduction portion that contacts the ear cartilage. As a result, for example, as described in the first embodiment in FIGS. 2A and 2B, the mobile phone 4201 can be brought into contact with either the right ear or the left ear for cartilage conduction. It becomes possible. Furthermore, since the acoustic impedance of the housing of the mobile phone 4201 and the elastic body portions 4263a and 4263b are different, the conduction component from the elastic body portions 4263a and 4263b to the housing of the mobile phone 4201 can be reduced, and the elastic body portions 4263a and 4263b Efficient cartilage conduction to the ear cartilage can be realized.

  FIG. 69C is a cross-sectional view of the mobile phone 4201 cut along a plane perpendicular to the front surface and the top surface along a B2-B2 cut surface illustrated in FIG. 69A or 69B. Also from FIG. 69C, the elastic body portions 4263a and 4263b hold the piezoelectric bimorph element 2525 and are fixedly supported by the casing of the mobile phone 4201, and the outside forms the corner outer wall of the mobile phone 4201. It can be seen that it also serves as a protector for collision with the outside and also serves as a cartilage conduction portion that contacts the ear cartilage. As is clear from FIG. 69C, in Example 46, the elastic body portions 4263c and 4263d at the two lower corners function exclusively as protectors and are covered with the casing of the mobile phone 4201. It has become.

  FIG. 70 relates to Example 47 according to the embodiment of the present invention, and FIG. 70 (A) is a perspective view showing a part on the upper end side, and FIG. It is sectional drawing which shows the BB cross section of A). The embodiment 70 is also configured as a mobile phone 4301 and has a structure in which the piezoelectric bimorph element 2525 is fitted to the side surface of the mobile phone. Since this structure has many parts in common with the embodiment 30 shown in FIG. 70, illustration and description of a configuration for inputting an audio signal to the cartilage conduction vibration source 2525 are omitted as in FIG.

  The embodiment 47 of FIG. 70 differs from the embodiment 30 of FIG. 48 in the structure of the portion that transmits the vibration of the piezoelectric bimorph element 2525 to the ear cartilage. That is, in the embodiment 47 of FIG. 70, the concave portion 4301a having a slight step (for example, 0.5 mm) is provided on the side surface of the mobile phone 4301, and the vibration surface of the piezoelectric bimorph element 2525 comes to the bottom of the concave portion 4301a. It is arranged as follows. Although the vibration surface of the piezoelectric bimorph element 2525 may be exposed at the bottom of the recess 4301a, in Example 47, the piezoelectric bimorph element 2525 is covered with a thin protective layer 4227. The protective layer 4227 is affixed or coated with an elastic material so as not to hinder expansion and contraction of the vibration surface due to vibration of the piezoelectric bimorph element 2525.

  With the above structure, the vibration surface of the piezoelectric bimorph element 2525 can be brought into direct contact with the ear cartilage as much as possible, and the piezoelectric bimorph element 2525 can be protected from being damaged by collision with the outside. In other words, the piezoelectric bimorph element 2525 is disposed at the bottom of the recess 4301a and is at a position that is lower than the outer surface of the mobile phone 4301 housing by a level difference. In addition, the piezoelectric bimorph element 2525 does not directly collide with the outside. As shown in FIG. 70A, in Example 47, the concave portion 4301a is slightly lowered from the corner on the side surface of the mobile phone 4301 so that the piezoelectric bimorph element 2525 is not damaged by the collision of the corner. Is provided. Since the ear cartilage is soft, even if the vibration surface of the piezoelectric bimorph element 2525 is arranged at the bottom of the recess 4301a, it is easily deformed at a slight step and touches the vibration surface of the piezoelectric bimorph element 2525 or its covering surface. Can do.

  Various features shown in each embodiment of the present invention can be freely modified, replaced, or combined as long as the advantages can be utilized. For example, in the embodiment 46 of FIG. 69, the elastic body portions 4263a and 4263b are arranged so as to be symmetric with respect to the center of the piezoelectric bimorph element 2525, but the support of the piezoelectric bimorph element 2525 is limited to such an arrangement. Instead, the piezoelectric bimorph element 2525 may be eccentric so that the center of the piezoelectric bimorph element 2525 is close to one of the opposing corners. For example, the piezoelectric bimorph element 2525 is not completely symmetric with respect to the center thereof, and there is a slight difference in the weight and the degree of freedom of vibration between the side with the terminal 2525b and the side without the terminal 2525b. In addition, a wiring 3836a passes through the elastic body portion 4263a that supports the terminal 2525b side, and leads to the circuit 3836. The configuration in which the piezoelectric bimorph element 2525 is supported by being eccentric between both corners is effective in compensating for the asymmetry as described above. The lengths of the elastic body portions 4263a and 4263b need to be determined by the length of the piezoelectric bimorph element 2525 and the width of the casing of the mobile phone 4201. In other words, the elastic body portions 4263a and 4263b each need a length that reaches the both ends of the piezoelectric bimorph element 2525 from the outer surfaces of both corners of the casing of the mobile phone 4201. The configuration in which the piezoelectric bimorph element 2525 is eccentrically supported between the two corners is also effective in adjusting the length as described above in consideration of the layout of the mounted parts in the mobile phone. When the elastic body portion 4263a or 4263b becomes long, the elastic body portion 4263a or 4263b is extended inward so as not to contact the inner surface of the housing and reaches the end of the piezoelectric bimorph element 2525, so that the piezoelectric bimorph element is reached. It is also possible to increase the degree of freedom of vibration at the end of the element 2525.

  FIG. 71 is a perspective view and a cross-sectional view of a modified example of Example 46 according to the embodiment of the present invention, and shows an example of the configuration when the elastic body portion becomes long as described above. That is, as shown in FIG. 71, when the elastic body portions 4263a and 4263b are long, the extension portions 4263e and 4263f are provided by extending the elastic body portions 4263a and 4263b inward so as not to contact the inner surface of the casing of the mobile phone 4201. A configuration is adopted in which both ends of the piezoelectric bimorph element 2525 are held by the extended portions 4263e and 4263f. According to this configuration, the extension portions 4263e and 4263f are not in contact with the inner surface of the casing of the mobile phone 4201, and thus elastic deformation is easy. The extension portions 4263e and 4263f allow the both ends of the piezoelectric bimorph element 2525 to be connected. By holding, the degree of freedom of vibration of the piezoelectric bimorph element 2525 can be increased. 71 is the same as that in FIG. 69, the same reference numerals are given to the common parts, and description thereof is omitted.

  Various features shown in each embodiment of the present invention can be freely modified, replaced, or combined as long as the advantages can be utilized. For example, in each of the above-described embodiments, the cartilage conduction vibration source has been described as including a piezoelectric bimorph element. However, unless specifically described as relating to the configuration unique to the piezoelectric bimorph element, the various features of the present invention are not limited to the case where the piezoelectric bimorph element is adopted as the cartilage conduction vibration source, and the electromagnetic vibrator Even when various other elements such as a giant magnetostrictive element are adopted as the cartilage conduction vibration source, the advantages can be enjoyed.

  72 is a perspective view and a cross-sectional view regarding Example 48 according to the embodiment of the present invention, and is configured as a mobile phone 4301. FIG. Example 48 is an example in which an electromagnetic vibrator is employed as the cartilage conduction vibration source in the configuration of Example 46 in FIG. 69. FIG. 72A is a perspective view of the mobile phone 4301 according to the embodiment 48 as viewed from the front, and the appearance is the same as the perspective view of the embodiment 46 in FIG. That is, also in Example 48, elastic body portions 4363a, 4363b, 4363c and 4363d serving as protectors are provided at four corners which are easily exposed to a collision when the mobile phone 4301 is accidentally dropped. The elastic body parts 4363a and 4363b at the two upper corners also serve as a holding part for the cartilage conduction vibration source, and the outside of the elastic body parts 4363a and 4363b also serves as a cartilage conduction part in contact with the ear cartilage. The elastic body portions 4363a and 4363b are elastic materials (silicone rubber, a mixture of silicone rubber and butadiene rubber, natural rubber, or air bubbles similar to those of the ear cartilage, as in the case of Example 46. Or a structure in which a single air bubble group such as that found in a transparent packing sheet material is separated and sealed with a thin film of synthetic resin is employed.

  72B is a cross-sectional view of the cellular phone 4301 (indicated as 4301a in FIG. 72B) cut along a plane perpendicular to the front and side surfaces along the BB cut plane in FIG. 72A. As is apparent from FIG. 72B, electromagnetic vibrators 4326a and 4324a are embedded in the elastic body portions 4363a and 4363b, respectively. The main vibration direction is a direction perpendicular to the front surface of the mobile phone 4301 provided with the GUI display unit as indicated by an arrow 25m. The structure in which the cartilage conduction vibration source such as the electromagnetic vibrators 4326a and 4324a is embedded in the elastic body parts 4363a and 4363b has the elastic body parts 4363a and 4363b having the protector function and the cartilage conduction part function as described above. As described in the embodiment, it also serves as a buffer function for protecting the cartilage conduction vibration source from impact.

  As in the embodiment 48 in FIG. 72 (B), the electromagnetic vibrators 4326a and 4324a can be controlled independently in the configuration in which the elastic body portions 4363a and 4363b are provided with separate electromagnetic vibrators 4326a and 4324a, respectively. Accordingly, as in the first embodiment shown in FIGS. 1 to 4, the inclination direction of the mobile phone 4301 is detected by the gravitational acceleration detected by the acceleration sensor, and either of the elastic body portions 4363a and 4363b is applied to the ear. Depending on whether the right or left ear is touched by the corner of the mobile phone as shown in FIG. Can be configured to be turned off. This is the same in the modification described later.

  FIG. 72C is a cross-sectional view of the first modified example of the embodiment 48. Similarly to the case of FIG. 72B, the cellular phone 4301 (FIG. 72) is taken along the line BB of FIG. FIG. 4C is a cross-sectional view taken along a plane perpendicular to the front and side surfaces. Similarly to the embodiment 48, in the first modification example, electromagnetic vibrators 4326b and 4324b are embedded in the elastic body portions 4363a and 4363b, respectively. However, the main vibration direction is a direction perpendicular to the side surface of the mobile phone 4301 as indicated by an arrow 25n. The other points are the same as in the embodiment 48 of FIG.

  FIG. 72D is a cross-sectional view of the second modified example of the embodiment 48. Similar to FIG. 72B, the cellular phone 4301 (FIG. 72) is taken along the line BB in FIG. FIG. 4D is a cross-sectional view taken along a plane perpendicular to the back surface and the side surface. Similarly to the embodiment 48, in the second modification example, electromagnetic vibrators 4326c and 4324c are embedded in the elastic body portions 4363a and 4363b, respectively. However, the main vibration direction is inclined 45 degrees from the side surface of the mobile phone 4301 as indicated by an arrow 25p. Therefore, similarly to the second modification of the embodiment 43 in FIG. 66 (D), the vibration component is decomposed in the direction perpendicular to the side surface and the direction perpendicular to the front surface perpendicular thereto, and the elastic body portion 4363a or 4363b. The same degree of cartilage conduction can be obtained by contacting the ear cartilage from any direction. The other points are the same as in the embodiment 48 of FIG.

  FIG. 72E is a cross-sectional view of the third modification of the embodiment 48. Similarly to the case of FIG. 72B, the cellular phone 4301 (FIG. 72) is taken along the line BB of FIG. (E) is a cross-sectional view taken along a plane perpendicular to the front and side surfaces. In the third modification, electromagnetic vibrators 4326d and 4326e and 4324d and 4324e are embedded in the elastic body portions 4363a and 4363b, respectively. The direction of vibration of the electromagnetic transducers 4326d and 4324d is a direction perpendicular to the side surface indicated by the arrow 25d, and the direction of the electromagnetic transducers 4326e and 4324e is a direction perpendicular to the front surface indicated by the arrow 25e. . As a result, in the same manner as in Example 45 shown in FIG. 68, cartilage conduction is generated on the side surface and the front surface from a plurality of different cartilage conduction vibration sources.

  As in the third modification of the embodiment 48 in FIG. 72E, the vibration in the direction perpendicular to the side surface is generated from the electromagnetic vibrator 4324d and the vibration in the direction perpendicular to the front from the electromagnetic vibrator 4324e and the like. In the configuration in which the electromagnetic vibrators 4324d and 4324e having different vibration directions can be controlled independently. Specifically, the inclination direction of the mobile phone 4301 is detected by the gravitational acceleration detected by the acceleration sensor such as the acceleration sensor 49 of the first embodiment shown in FIG. 3, and the elastic body portion 4363b is detected from either the side or the front. Depending on whether it is applied to the ear, the electromagnetic vibrator that is applied to the ear can be vibrated and the other vibration can be turned off. Such independent control of a plurality of cartilage conduction vibration sources having different vibration directions is not limited to the electromagnetic type vibrator shown in FIG. 72 (D). For example, the piezoelectric bimorph of Example 45 shown in FIG. This is possible even in the case of a configuration employing the elements 4124 and 4126.

  FIG. 73 is an enlarged cross-sectional view of a main part of the embodiment 48 and its modification. 73A is an enlarged view of the elastic body portion 4363b and the electromagnetic vibrator 4324a of FIG. 72B, and particularly shows details of the electromagnetic vibrator 4324a. In the electromagnetic vibrator 4324a, a yoke 4324h holding a magnet 4324f and a central magnetic pole 4324g is suspended in a housing by a corrugation damper 4324i. A top plate 4324j having a gap is fixed to the magnet 4324f and the center magnetic pole 4324g. Thereby, the magnet 4324f, the central magnetic pole 4324g, the yoke 4324h, and the top plate 4324j are integrally movable in the vertical direction as viewed in FIG. 73 relative to the housing of the electromagnetic transducer 4324a. On the other hand, a voice coil bobbin 4324k is fixed inside the housing of the electromagnetic vibrator 4324a, and a voice coil 4323m wound around the housing is inserted into the gap of the top plate 4324j. In this configuration, when an audio signal is input to the voice coil 4323m, a relative movement occurs between the yoke 4324h and the like and the housing of the electromagnetic vibrator 4324a, and the vibration comes into contact with this via the elastic body portion 4363b. Conducts to the ear cartilage.

  FIG. 73B shows a fourth modification of the embodiment 48, and shows an enlarged view corresponding to FIG. 73A. Since the internal configuration of the electromagnetic vibrator 4324a is the same as that in FIG. 73A, the number of each part is not shown and the description thereof is omitted to avoid complexity. In the fourth modification example in FIG. 73B, a step portion 4401g is provided at a corner portion of the mobile phone 4401, and an elastic body portion 4463b is covered on the outside thereof. A window portion 4401f is provided on the front side of the step portion 4401g, and an electromagnetic vibrator 4324a is bonded to the back side of the elastic body portion 4463b facing the portion of the window portion 4401f. In addition, a buffer portion 4363f made of an elastic body is bonded to the opposite side of the electromagnetic vibrator 4324a. In the normal vibration state, the buffer portion 4363f is provided with a gap so as not to come into contact with the back side of the step portion 4401g. It acts as a cushioning material that prevents further elastic body portion 4463b from being pushed in freely upon contact with. This prevents inconveniences such as the electromagnetic vibrator 4324a peeling off due to the deformation of the elastic body portion 4463b. The buffer portion 4363f also functions as a balancer in a normal vibration state, and can be designed by adjusting its shape and weight so that the acoustic characteristics of the electromagnetic vibrator 4324a are optimized. Further, when the buffer portion 4363f functions only as a balancer, it may be a rigid body instead of an elastic body. Although not shown in FIG. 73 (B), the opposite corner portion (corresponding to the position of the elastic body portion 4363a in FIG. 72 (B)) in the fourth modification of the embodiment 48 is also shown in FIG. B) and the left-right symmetric structure.

  The fourth modification of FIG. 73 (B) is based on the arrangement of electromagnetic vibrators in the direction of FIG. 72 (B). However, the configuration as in the fourth modification is not limited to this, and can be applied to the arrangement of electromagnetic vibrators in various orientations in FIGS. 72C to 72E.

  In Example 48 shown in FIGS. 72 and 73A, the elastic body portion 4363b and the electromagnetic vibrator 4324a are configured as replaceable unit parts. When the appearance of the elastic body portion 4363b is damaged due to a collision with the outside, the elastic body portion 4363b and the electromagnetic vibrator 4324a can be exchanged as a unit. This point is the same in the fourth modification of the embodiment 48 shown in FIG. 73B, and the elastic body portion 4463b, the electromagnetic vibrator 4324a, and the buffer portion 4363f are configured as replaceable unit parts. When the appearance of the elastic body portion 4463b is aesthetically damaged, the whole can be replaced as a unit. Such a unit component configuration is a useful feature that coincides with the fact that the elastic body portion 4463b or the like is configured as a protector and is positioned at a corner portion where collision with the outside is expected. In addition, the corner exposed to the collision is also a useful feature that can be labeled as a suitable location for contact for cartilage conduction. Furthermore, the cartilage conduction vibration part is configured as a replaceable unit part. The cartilage conduction vibration part has optimal acoustic characteristics according to the user's age, etc. This is also useful for providing a product with attached (for example, the shape and weight of the buffer portion 4363f shown in FIG. 73 (B) adjusted). In addition to the acoustic characteristics, the configuration of other parts of the mobile phone is basically the same, and for example, any of the cartilage conduction vibration parts shown in FIGS. 72 (B) to 72 (E) is adopted according to the user's preference. This is also useful for providing products by changing the order according to the order.

  The specific configuration in which the cartilage conduction vibration source is provided at the corner elastic body is not limited to that illustrated in FIG. 73, and the design can be changed as appropriate. For example, the buffer portion 4363f illustrated in FIG. 73B may be bonded to the back side of the stepped portion 4401g instead of being bonded to the opposite side of the electromagnetic vibrator 4324a. In this case, the buffer portion 4363f is provided with a gap so as not to contact the opposite side of the electromagnetic transducer 4324a in a normal vibration state. In the case where the elastic body portion 4463b can withstand pushing due to a collision with the outside, the buffer portion 4363f may be omitted.

  The various features of each of the embodiments described above are not limited to the above embodiments, and can be implemented in other embodiments as long as the advantages can be enjoyed. Various features of each embodiment are not limited to individual embodiments, and can be appropriately replaced or combined with features of other embodiments. For example, in the above-described embodiment 48 and its modification, an electromagnetic vibrator is adopted as the cartilage conduction vibration portion, and another electromagnetic vibrator that can be independently controlled is provided in the elastic body portion of a different angle. showed that. However, the implementation of the present invention is not limited to this. For example, as described above, even when a piezoelectric bimorph element is used as the cartilage conduction vibration part, the cartilage conduction vibration parts separately provided at different corners can be controlled independently of each other as in the first embodiment of FIG. Can do. In this case, the piezoelectric bimorph element can be provided on the elastic body portion having a different angle according to the 48th embodiment. Conversely, even when an electromagnetic vibrator is employed as the cartilage conduction vibration section, the fourth embodiment in FIG. 7, the fifth embodiment in FIG. 11, the tenth embodiment in FIG. 19, the eleventh embodiment in FIG. As described above, it is also possible to transmit the vibration of one electromagnetic vibrator to the left and right corners. In this case, whether the cartilage conduction vibration part is a piezoelectric bimorph element or an electromagnetic vibrator, the vibration conductor to the left and right corners can be formed of an elastic body according to the embodiment 48. . Further, depending on the shape of the electromagnetic vibrator, it may be configured to support both sides of the electromagnetic vibrator with elastic bodies provided at the left and right corners in accordance with the embodiment 46 and its modifications.

  74 is a perspective view and a cross-sectional view of Example 49 and its modification according to the embodiment of the present invention, and is configured as a mobile phone 4501. FIG. In addition, since Example 49 is common with Example 46 of FIG. 69 except the structure for air conduction generation | occurrence | production switching mentioned later, the same number is attached and description is used. Specifically, Example 49 is illustrated in FIGS. 74 (A) to 74 (D), of which FIGS. 74 (A) to 74 (C) are FIGS. 69 (A) relating to Example 46. To FIG. 69C. FIG. 74 (D) is an enlarged view of a main part of FIG. 74 (C). FIG. 74 (E) is an enlarged view of a main part relating to a modified example of the embodiment 49.

  As is apparent from the B2-B2 cross-sectional view of FIG. 74C, in Example 49, a transparent resonance box 4563 for generating air conduction is provided so as to cover the display portion 3405. The transparent resonance box 4563 is hollow, and a part of the mobile phone 4501 is provided with an air vent hole inside. Further, since the transparent resonance box 4563 is extremely thin, the user can observe the display unit 3405 through the transparent resonance box 4563. As is clear from FIGS. 74B and 74C, a vibration conductor 4527 slidable in the vertical direction is provided at the central portion of the piezoelectric bimorph element 2525. When the vibration conductor 4527 is at the position shown by the solid line in FIG. 74C, vibration transmission from the central portion of the piezoelectric bimorph element 2525 to the transparent resonance box 4563 is interrupted, and the vibration conductor 4527 is 74C, the vibration of the central portion of the piezoelectric bimorph element 2525 is transmitted to the transparent resonance box 4563 through the vibration conductor 4527 when it is in contact with the upper part of the transparent resonance box 4563. Thus, air conduction sound is generated from the entire transparent resonance box 4563 and the entire transparent resonance box 4563 becomes a surface speaker. This situation is clearly shown in the enlarged view of the main part of FIG. Note that the vibration conductor 4527 is moved up and down by sliding a manual operation knob 4527a outside the mobile phone 4501 up and down. The manual operation knob 4527a has a click mechanism for determining the upper and lower two positions. Further, the vibration conductor 4527 has a spring property so as to be effectively pressed against the transparent resonance box 4563 when being slid to the position of the broken line.

  As described above, in the state where the vibration conductor 4527 is located at the position indicated by the broken line in FIGS. 74C to 74D, air conduction sound is generated from the entire transparent resonance box 4563 and the elastic body portions 4263a and 4263b receive cartilage. Conduction occurs. Therefore, the user can listen to the sound by cartilage conduction by placing the elastic body portion 4263a or 4263b on the ear, and can make an arbitrary portion of the display portion 3405 provided with the transparent resonance box 4563 close to the ear. You can listen to the sound by air guidance. In this way, various uses are possible according to the user's preference and situation. On the other hand, in the state where the vibration conductor 4527 is at the position shown by the solid line in FIGS. 74C to 74D, vibration transmission to the transparent resonance box 4563 is cut off and generation of air conduction sound from the transparent resonance box 4563 is stopped. Therefore, sound can be heard by cartilage conduction while preventing surroundings from being disturbed or leaking privacy due to sound leakage caused by air conduction, particularly in a quiet environment.

  In a modification of the embodiment 49 in FIG. 74E, vibration transmission from the central portion of the piezoelectric bimorph element 2525 to the transparent resonance box 4563 is interrupted by rotating the vibration conductor 4527b. . Specifically, when the vibration conductor 4527b is at the position shown by the solid line in FIG. 74E, the vibration conductor 4527b is separated from both the central portion of the piezoelectric bimorph element 2525 and the transparent resonance box 4563, and the vibration Transmission is cut off. On the other hand, when the vibration conductor 4527b is rotated in the clockwise direction and is at the position indicated by the broken line in FIG. 74E, the vibration conductor 4527b is either the central portion of the piezoelectric bimorph element 2525 or the upper portion of the transparent resonance box 4563. Also, the vibration of the central portion of the piezoelectric bimorph element 2525 is transmitted to the transparent resonance box 4563 through the vibration conductor 4527b. The other points are the same as in the embodiment 49 of FIGS. 74 (A) to 74 (D). Note that the vibration conductor 4527b is rotated by rotating a manual operation dial 4527c outside the mobile phone 4501. The manual operation dial 4527c has a click mechanism for determining two rotational positions. The vibration conductor 4527b also has a spring property, and effectively presses the central portion of the piezoelectric bimorph element 2525 and the upper portion of the transparent resonance box 4563 when rotated to the position of the broken line.

  Switching between cartilage conduction and air conduction as described above is not limited to the embodiment 49 shown in FIG. 74 and its modifications, and various configurations are possible. For example, in FIG. 74, the piezoelectric bimorph element 2525 and the transparent resonance box 4563 are fixed, and vibration is interrupted by moving the vibration conductor 4527 or 4527b therebetween. However, instead of this, it is also possible to intermittently vibrate vibration between at least one of the piezoelectric bimorph element 2525 and the transparent resonance box 4563 itself. At this time, at least a part of the piezoelectric bimorph element 2525 or the transparent resonance box 4563 may be moved. Further, in FIG. 74, the case of cartilage conduction plus air conduction and the case of cartilage conduction only (strictly, there are some air conduction components, but for the sake of simplicity, they are referred to as “cartilage conduction only”, the same applies hereinafter). However, instead of this, switching between cartilage conduction only and air conduction only, or switching between cartilage conduction plus air conduction and air conduction only, is performed. It is also possible to configure. In FIG. 74, an example of manual switching is shown. However, a noise sensor for determining whether or not the environment is quiet is provided, and the vibration conductor 4527 or 4527b is automatically driven based on the output of the noise sensor. When the noise detected by the sensor is less than or equal to a predetermined value, it is possible to automatically switch between cartilage conduction plus air conduction and cartilage conduction alone.

  FIG. 75 is a block diagram relating to Example 50 according to the embodiment of the present invention, and is configured as a mobile phone 4601. In Example 50, the electromagnetic vibrators 4326d, 4326e, 4324d, and 4324e are based on the configuration of the third modification of Example 48 whose cross section is shown in FIG. The configuration is almost the same as that of the block diagram of FIG. 2 and the electromagnetic vibrator portion is illustrated with a mixture of cross-sectional views. Since the embodiment 50 is configured as described above, in FIG. 75, the same reference numerals are given to the same portions as those in FIG. 72 (E) and FIG. In Example 50, since no receiver is provided in addition to the electromagnetic transducers 4326d, 4326e, 4324d and 4324e, the phase adjustment mixer unit 36, the right ear drive unit 4624, the left ear shown in FIG. The driving unit 4626, the air conduction reduction automatic switching unit 4636, and the electromagnetic vibrators 4326d, 4326e, 4324d, and 4324e constitute a receiving unit (the receiving unit 13 in FIG. 3) in the telephone function unit 45. The embodiment 50 configured as described above is another embodiment relating to the switching between cartilage conduction and air conduction shown in the embodiment 49, and the switching is performed electrically and automatically. Hereinafter, this point will be mainly described.

  As described in FIG. 72 (E), the embodiment 50 of FIG. 75 has a configuration in which cartilage conduction is generated from a plurality of different electromagnetic transducers 4326e, 4326d, 4324e, and 4324d on the side surface and the front surface, respectively. The set of the electromagnetic vibrators 4326d and 4326e embedded in the elastic body portion 4363a is controlled by the left ear driving unit 4626 and the electromagnetic vibrators 4324d and 4324e embedded in the elastic body portion 4363b. The set is controlled by a right ear drive 4624. In such a configuration, as in the first embodiment, the acceleration sensor 49 detects which of the elastic body portion 4363a and the elastic body portion 4363b is in contact with the ear, and the right ear driving portion 4624 and One of the left ear driving units 4626 is turned on and the other is turned off. Accordingly, either one of the set of electromagnetic vibrators 4326d and 4326e and the set of electromagnetic vibrators 4324d and 4324e can vibrate, and the other cannot vibrate.

  75, an environmental noise microphone 4638 for determining whether or not the environment is quiet is further provided. When the noise detected by the environmental noise microphone 4638 is equal to or higher than a predetermined level, the air conduction reduction automatic switching unit 4636 functions in response to a command from the control unit 39 to operate both the electromagnetic vibrators 4326d and 4326e, or the electromagnetic vibration. Both the children 4324d and 4324e are vibrated. On the other hand, in a quiet situation where the control unit 39 determines that the noise detected by the environmental noise microphone 4638 is less than or equal to a predetermined value, only the electromagnetic vibrator 4326d or only the electromagnetic vibrator 4324d is used by the function of the air conduction reduction automatic switching unit 4636. Is vibrated, and the vibrations of the electromagnetic vibrators 4326e and 4324e are stopped. For the purpose of detecting the level of environmental noise, instead of providing a dedicated environmental noise microphone 4638 as shown in FIG. 75, the microphone output in the transmitter 23 of the telephone function unit 45 is diverted. A noise component may be extracted. This extraction can be performed by analyzing the frequency spectrum of the microphone output, using the microphone output when the sound is interrupted, or the like.

  Next, the significance of the above configuration will be described. As described in FIG. 72E, the vibration directions of the electromagnetic vibrators 4326d and 4324d in the embodiment 50 of FIG. 75 are perpendicular to the side surfaces, and the vibration directions of the electromagnetic vibrators 4326e and 4324e are The direction is perpendicular to the front. Since the electromagnetic vibrators 4326e and 4324e vibrate in a direction perpendicular to the front surface on which the display unit 5 and the like are arranged, the entire front surface having a large area resonates in the mobile phone 4601, and the side surfaces of the electromagnetic vibrators 4326d and 4324d The air conduction component becomes larger than the vibration of. Therefore, in correspondence with Example 49, when both of the electromagnetic vibrators 4326e and 4326d vibrate or when both of the electromagnetic vibrators 4324e and 4324d vibrate, “cartilage conduction plus air conduction” Corresponds to “case”. On the other hand, the case where only the electromagnetic vibrator 4326d vibrates or the case where only the electromagnetic vibrator 4324d vibrates corresponds to the “case of cartilage conduction only”. As described in Example 49, there are some air-conducting components even in the case of “cartilage conduction only”, so this case classification is based solely on the relative comparison of the sizes of the air-conducting components.

  As described above, when both of the electromagnetic vibrators 4326e and 4326d vibrate, or when both of the electromagnetic vibrators 4324e and 4324d vibrate, the user places the elastic body portion 4263a or 4263b on the ear. Sound can be heard by cartilage conduction, and sound can also be heard by air conduction by placing an arbitrary portion of the front of the mobile phone 4601 close to or against the ear. In this way, various uses are possible according to the user's preference and situation. On the other hand, when only the electromagnetic vibrator 4326d vibrates, or when only the electromagnetic vibrator 4324d vibrates, the occurrence of air conduction becomes relatively small, and sound leakage due to air conduction particularly in a state where the environment is quiet. Therefore, it is possible to hear sound through cartilage conduction while preventing inconvenience and leakage of privacy. Further, in the embodiment 50, air conduction reduction in a state where the environment is quiet is automatically performed by the functions of the environmental noise microphone 4638 and the air conduction reduction automatic switching unit 4636.

  The embodiment 50 in FIG. 75 is configured using an electromagnetic transducer, but the configuration that electrically and automatically switches between cartilage conduction and air conduction is an electromagnetic transducer as a cartilage conduction vibration source. When, for example, a plurality of independently controllable piezoelectric bimorph elements are provided in different directions as in Example 45 of FIG. 68, these controls are performed in Example 50. It is possible to carry out automatically according to the above. 75, a transparent resonance box 4563 for generating air conduction as in the embodiment 49 of FIG. 74 is provided, and one or both of the electromagnetic vibrator 4326e and the electromagnetic vibrator 4324e are provided as described above. It is also possible to construct such that air conduction is positively generated from the front of the mobile phone 4601 by always contacting the transparent resonance box 4563.

  The various features of each of the embodiments described above are not limited to the above embodiments, and can be implemented in other embodiments as long as the advantages can be enjoyed. Various features of each embodiment are not limited to individual embodiments, and can be appropriately replaced or combined with features of other embodiments. For example, in the present invention, the contact portion with the ear for cartilage conduction is provided at the corner of the mobile phone. Consider this feature, for example, for a mobile phone 301 configured as a smartphone as in the fourth embodiment of FIG. 7 (hereinafter referred to as the smartphone 301 for simplicity). As shown in FIG. 7, the smartphone 301 has a large screen display unit 205 having a GUI function on the front surface, and the normal receiver 13 is arranged to be driven to the upper corner of the smartphone 301. Moreover, since the normal receiving unit 13 is provided in the central part of the smartphone 301, when the smartphone 301 is put on the ear, the large screen display unit 205 hits the cheekbone and is difficult to bring the receiving unit 13 close to the ear. In addition, if the normal receiving unit 13 is pressed strongly against the ear in order to listen well to the other party's voice, the large screen display unit 205 may come into contact with the ear or cheek and become soiled with sebum. On the other hand, when the right-ear vibration unit 224 and the left-ear vibration unit 226 are disposed at the corners of the smartphone 301 in FIG. 7, the corners of the smartphone 301 become the tragus 32 as illustrated in FIG. It fits in a dent near the ear canal entrance. This makes it possible to easily press the sound output unit of the smartphone 301 around the ear canal opening, and even when pressed strongly, it is possible to naturally avoid the large screen display unit 205 from touching the ears or cheeks. Such an arrangement of the audio output unit at the corner of the mobile phone is not limited to the case of cartilage conduction but is useful even in the case of a receiving unit using a normal air conduction speaker. In this case, it is desirable to provide air conduction speakers for the right ear and the left ear at the two corners at the top of the smartphone.

  Moreover, as already described, the conduction of cartilage conduction varies depending on the pressing force applied to the cartilage, and a more effective conduction state can be obtained by increasing the pressing force. This means that if the received sound is difficult to hear, the natural action of increasing the force of pressing the mobile phone against the ear can be used for volume adjustment. If the pressing force is further increased to a state where the ear hole is blocked, the sound volume is further increased by the effect of the ear plug bone. Even if such a function is not explained to the user by an instruction manual, for example, the user can naturally understand the function through natural behavior. Such a merit in use does not employ a cartilage conduction vibration part as an audio output part, and can be realized in a pseudo manner even in the case of a reception part using a normal air conduction speaker. Can be a feature.

  FIG. 76 is a block diagram relating to Example 51 according to the embodiment of the present invention, and is configured as a mobile phone 4701. In addition, Example 51 does not employ the cartilage conduction vibration unit as the audio output unit as described above, but employs a normal air conduction speaker so that automatic volume control by natural behavior can be realized in a pseudo manner. It is composed. In addition, in order to explain the external arrangement, an overview diagram of the mobile phone is mixed in the block diagram. Most of the block diagram of FIG. 76 is common to the first embodiment of FIG. 3 and most of the overview is common to the fourth embodiment of FIG. I will omit the explanation unless it is. Note that the volume / sound quality automatic adjustment unit 4736, right ear drive unit 4724, left ear drive unit 4726, right ear air conduction speaker 4724a, and left ear air conduction speaker 4726a illustrated in FIG. 45 constitutes the receiver (in FIG. 3, receiver 13).

  76, the right ear air conduction speaker 4724a of Example 51 is controlled by the right ear driving unit 4524, and the left ear air conduction speaker 4726a is controlled by the right ear driving unit 4526. In the same manner as in Example 50, the acceleration sensor 49 detects which one of the right ear air conduction speaker 4724a and the left ear air conduction speaker 4726a is in contact with the ear, and the right ear drive. One of the unit 4524 and the left ear driving unit 4526 is turned on and the other is turned off. Accordingly, one of the right ear air conduction speaker 4724a and the left ear air conduction speaker 4726a is turned on and the other is turned off.

  Right ear pressure sensor 4742a and left ear pressure sensor 4742b are provided in the vicinity of right ear air conduction speaker 4724a and left ear air conduction speaker 4726a, respectively. The pressing of the air conduction speaker 4726a that is turned on is detected. Then, the left / right press sensor processing unit 4742 analyzes the detected pressure level and sends volume / sound quality control data to the control unit 39. Based on the volume / sound quality control data, the control unit 39 instructs the volume / sound quality automatic adjustment unit 4736 to automatically adjust the volume of the right-ear drive unit 4524 or the left-ear drive unit 4526 that is turned on. . The volume is basically adjusted so that the volume increases as the pressure increases, and if the received sound is difficult to hear, it is set to be suitable as a response to a natural action of increasing the force of pressing the mobile phone 4701 against the ear. .

  To supplement the details of the function of the volume / sound quality automatic adjustment unit 4736, in order to avoid an unstable volume change due to a change in pressure, first, the volume change responds only to an increase in pressure and the volume changes stepwise only in the increasing direction. Composed. Furthermore, in order to avoid unintentional volume changes, the volume / sound quality automatic adjustment unit 4736 increases the volume in steps in response only when a predetermined increase in pressure continues on average over a predetermined time (for example, 0.5 seconds). Configured to let In addition, the volume / sound quality automatic adjustment unit 4736 reduces the pressure to a predetermined level or lower (corresponding to a state in which either the right ear air conduction speaker 4724a or the left ear air conduction speaker 4726a is turned on is separated from the ear). When it is detected that the state has continued for a predetermined time (for example, 1 second) or more, the sound volume is reduced to the standard state all at once. As a result, the user intentionally moves the mobile phone 4701 slightly away from the ear when the volume is increased too much (this also matches the natural operation of moving the sound source away from the ear if the sound is too loud). After resetting to the standard state, the pressing force can be increased again to achieve the desired volume.

  The volume / sound quality automatic adjustment unit 4736 can also automatically adjust the sound quality. This function is related to the environmental noise microphone 38 described with reference to FIG. That is, in the first embodiment, the environmental noise picked up by the environmental noise microphone 38 is inverted in waveform and then mixed with the right-ear cartilage conduction vibration unit 24 and the left-ear cartilage conduction vibration unit 26, and the voice via the receiver unit 13. Cancel the environmental noise contained in the information to make it easier to hear the voice information of the other party. The volume / sound quality automatic adjustment unit 4736 in the embodiment 51 uses this function, turns off the noise canceling function when the pressure is below a predetermined value, and turns on the noise canceling function when the pressure is above a predetermined value. Note that the noise canceling function can be increased or decreased stepwise or continuously by adjusting the mixing amount of the environmental noise reversal signal stepwise as well as simply turning on and off. In this manner, the volume / sound quality automatic adjustment unit 4736 can automatically adjust not only the volume but also the sound quality based on the output of the left and right press sensor processing unit 4742. Note that Example 51 in FIG. 76 is not limited to the case where the right ear audio output unit and the left ear audio output unit are arranged at the corners of the smartphone. It is an Example which shows that it can enjoy, even when employ | adopting the receiving part by a conducting speaker.

  The various features of each of the embodiments described above are not limited to the above embodiments, and can be implemented in other embodiments as long as the advantages can be enjoyed. Various features of each embodiment are not limited to individual embodiments, and can be appropriately replaced or combined with features of other embodiments. For example, in Example 51 of FIG. 76, it is determined which of the right ear air conduction speaker 4724a and the left ear air conduction speaker 4726a is to be turned on based on the output of the acceleration sensor 49, but the right ear pressure sensor 4742a and The output of the left ear pressure sensor 4742b may be used to turn on one of the right ear air conduction speaker 4724a and the left ear air conduction speaker 4726a that corresponds to the one with the greater pressure and turn off the other. Good.

  Further, in Example 51 of FIG. 76, the right ear air conduction speaker 4724a and the left ear air conduction speaker 4726a and the right ear pressure sensor 4742a and the left ear pressure sensor 4742b corresponding thereto are provided. If it is only for the purpose of automatic volume / sound quality adjustment by, one conventional air-conducting speaker may be provided at the center of the upper part of the mobile phone, and one press sensor may be provided correspondingly. Further, in Example 51 of FIG. 76, cancellation of environmental noise due to waveform inversion is shown as a specific configuration of automatic sound quality adjustment by the sound volume / sound quality automatic adjustment unit 4736, but the configuration is not limited to this. For example, the volume / sound quality automatic adjustment unit 4736 is provided with a filter (for example, a low-frequency band cut filter) for cutting environmental noise. When the pressure is below a predetermined value, the filter is turned off. May be configured to turn on. Further, instead of cutting the low frequency region by a filter, the amplification factor in the low frequency region may be reduced (or the amplification factor in the high frequency region is increased). Such filter function or frequency range selective amplification function is not only simply turned on / off, but also by adjusting the filter function or frequency range selective amplification function step by step, environmental noise in stages or continuously according to the pressure. It is also possible to change the reduction capability.

  FIG. 77 is a cross-sectional view related to Example 52 according to the embodiment of the present invention, and is configured as a mobile phone 4801. In FIG. 77, a cross section of the mobile phone 4801 is shown to explain the support structure and arrangement of the piezoelectric bimorph elements 2525a and 2525b as the cartilage conduction vibration source, and the inside of the cross section relating to the control is not an actual arrangement. Illustrated in block diagram. In addition, this block diagram portion is based on the block diagram of the first embodiment shown in FIG. 3, and the common portions are basically omitted except for those necessary for understanding the mutual relationship. Also in the case shown in the figure, the same parts are denoted by the same reference numerals, and the description is omitted unless necessary.

  77 can be switched between “in the case of cartilage conduction plus air conduction” and “in the case of only cartilage conduction” in the same manner as in Example 49 in FIG. 74 and Example 50 in FIG. It is constructed as a simple example. In addition, the embodiment 52 of FIG. 77 is similar to the embodiment 46 of FIG. 69. The elastic body portion 4863a serving as a protector is provided at four corners that are likely to be exposed to a collision when the mobile phone 4801 is accidentally dropped. , 4863b, 4863c and 4863d. However, the support of the piezoelectric bimorph elements 2525a and 2525b by the elastic body portions 4863a and 4863b is not a double-end support structure, but is supported by a cantilever structure in the same manner as the embodiment 42 of FIG. 65 and the embodiment 43 of FIG. It is a thing. As described above, the embodiment 52 of FIG. 77 is related to the features of the various embodiments described so far, so that the description of the individual features can be understood by the description of the corresponding embodiments. Avoid duplicate explanations unless otherwise noted.

  First, the structure and arrangement of the embodiment 52 shown in FIG. 77 will be described. As described above, the elastic body portions 4863a, 4863b, 4863c and 4863d serving as protectors are provided at the four corners of the cellular phone 4801. . The outer surfaces of the corners of these elastic members are chamfered in a smooth convex shape so as not to cause substantial pain when applied to the ear cartilage. As will be described later in detail, the shape of the corner portion fits suitably to the cartilage around the ear canal and enables comfortable listening by cartilage conduction.

  In the embodiment 52 of FIG. 77, the piezoelectric bimorph element 2525b for the right ear and the piezoelectric bimorph element 2525a for the left ear are employed as described above, and are individually controlled in the same manner as the embodiment 1 shown in FIGS. Is possible. The piezoelectric bimorph elements 2525b and 2525a have an appropriate length to obtain a suitable frequency output characteristic. However, in order to arrange these two in a cellular phone 4801 in a compact manner, as shown in FIG. With respect to the element 2525b, the elastic body portion 4863b supports one end of the element 2525b on which the terminal is not provided. On the other hand, regarding the piezoelectric bimorph element 2525a for the left ear, the elastic body portion 4863a supports one end of the piezoelectric bimorph element 2525a which is not provided with a terminal. (Note that the vertical and horizontal arrangements of the piezoelectric bimorph elements for the right and left ears may be reversed.) The piezoelectric bimorph elements 2525b and 2525a are each provided with terminals, but flexible leads. Since it is connected to the control unit 39 by a line, it is a free end on the support structure. In this way, the free ends of the piezoelectric bimorph elements 2525b and 2525a vibrate, and the reaction appears on the elastic body portion 4863b and the elastic body portion 4863a, and cartilage conduction can be obtained by bringing the ear cartilage into contact therewith. The main vibration directions of the piezoelectric bimorph elements 2525b and 2525a are directions perpendicular to the paper surface in FIG.

  Next, control of the piezoelectric bimorph elements 2525b and 2525a will be described. The right ear piezoelectric bimorph element 2525b supported by the elastic body portion 4863b is driven by the right ear amplifier 4824 via the switch 4824a. On the other hand, the left ear piezoelectric bimorph element 2525a supported by the elastic body portion 4863a is driven by the left ear amplifier 4826 via the switch 4826a. The audio signals from the phase adjustment mixer unit 36 are respectively input to the right ear amplifier 4824 and the left ear amplifier 4826. The audio signal to the left ear amplifier 4826 is inverted in waveform by the waveform inversion unit 4836b via the switch 4836a. It is input after being done. As a result, in the state shown in FIG. 77, vibrations whose phases are reversed are conducted from the elastic body portion 4863a and the elastic body portion 4863b to the case of the mobile phone 4801 and cancel each other. The generation of air conduction sound from is substantially eliminated.

  On the other hand, for example, when the right ear cartilage is brought into contact with the elastic body portion 4863b, direct cartilage conduction from the elastic body portion 4863b to the ear cartilage occurs, whereas the vibration of the elastic body portion 4863a is once caused by the cellular phone 4801. After reaching the housing, it reaches the elastic body portion 4863b and is transmitted to the ear cartilage as cartilage conduction. Therefore, a difference is generated in the intensity of vibration whose phase is reversed, and this difference is transmitted to the ear cartilage without being canceled as the cartilage conduction from the elastic body portion 4863b. The same applies to the case where the left ear cartilage is brought into contact with the elastic body portion 4863a. Therefore, the state shown in FIG. 77 in the embodiment 52 corresponds to the “case of cartilage conduction only” in the embodiment 49 of FIG. 74 and the embodiment 50 of FIG. The air conduction elimination gain adjustment unit 4836c is for the left ear so that the generation of air conduction sound is minimized by canceling vibration from the elastic body part 4863a and the elastic body part 4863b to the casing of the mobile phone 4801 as described above. The gain of the amplifier 4826 is adjusted. Note that the switch 4836a, the waveform inversion unit 4836b, and the air conduction elimination gain adjustment unit 4836c as described above may be provided on the right ear amplifier 4824 side instead of being provided on the left ear amplifier 4826 side. Alternatively, only the airflow elimination gain adjustment unit 4836c may be provided on the right ear amplifier 4824 side.

  In Example 52 of FIG. 77, an environmental noise microphone 4638 for determining whether or not the environment is quiet is further provided. When the noise detected by the environmental noise microphone 4638 is equal to or higher than a predetermined level, the switch 4836a is switched to the lower signal path in the figure in response to a command from the control unit 39. As a result, the audio signal from the phase adjustment mixer unit 36 is transmitted to the left ear amplifier 4826 without waveform inversion. At this time, the vibration conducted from the elastic body portion 4863a and the elastic body portion 4863b to the housing of the mobile phone 4801 is not canceled, and conversely, doubles to generate air conduction sound from the entire housing surface of the mobile phone 4801. . This state corresponds to the “case of cartilage conduction plus air conduction” in Example 49 of FIG. 74 and Example 50 of FIG. 75. Note that this state is suitable for listening to the voice with the mobile phone 4801 away from the ear, such as when making a videophone call, since the air conduction sound from the entire surface of the housing is doubled. In the videophone mode, the switch 4836a is switched to the lower signal path in the figure in accordance with a command from the control unit 39 regardless of the detection of the environmental noise microphone 4638.

  On the other hand, in a quiet situation where the control unit 39 determines that the noise detected by the environmental noise microphone 4638 is less than or equal to a predetermined value, the switch 4836a is switched to the illustrated state in accordance with a command from the control unit 39. As a result, as described above, vibrations conducted from the elastic body portion 4863a and the elastic body portion 4863b to the casing of the mobile phone 4801 cancel each other, and the generation of the air conduction sound substantially disappears. The case corresponds to “in the case of”.

  In the embodiment 52 of FIG. 77, as in the first embodiment, the acceleration sensor 49 detects which of the elastic body portion 4863a and the elastic body portion 4863b is in contact with the ear, and the control unit 39 It is possible to control the switch 4824a and the switch 4826a by the above control. Then, the operation unit 9 always turns both the switch 4824a and the switch 4826a on regardless of the detection state of the acceleration sensor 49, and switches one of the switch 4824a and the switch 4826a based on the detection state of the acceleration sensor 49. A one-side on mode in which the other is turned on and the other is turned off can be switched. In the one-side on mode, for example, the switch 4824a is turned on and the switch 4826a is turned off if the elastic body portion 4863b has a right ear. The opposite is true if the left ear is applied to the elastic body portion 4863a.

  The one-side on mode is further combined with the function of the environmental noise microphone 4638. When the noise detected by the environmental noise microphone 4638 is equal to or higher than a predetermined level, one of the switch 4824a and the switch 4826a is switched based on the detection state of the acceleration sensor 49. Turn on and turn off the other. On the other hand, in a quiet situation where the control unit 39 determines that the noise detected by the environmental noise microphone 4638 is below a predetermined level, both the switch 4824a and the switch 4826a are turned on by a command from the control unit 39 regardless of the detection state of the acceleration sensor 49. At the same time, the switch 4836a is switched to the state shown in the figure so that vibrations conducted from the elastic body portion 4863a and the elastic body portion 4863b to the casing of the mobile phone 4801 cancel each other.

  78 is a perspective view and a sectional view of the embodiment 52 shown in FIG. 77. FIG. 78A is a perspective view of the mobile phone 4801 of Example 52 as viewed from the front, and the outer surfaces of the corners of the elastic body portions 4863a, 4863b, 4863c and 4863d provided as protectors at the four corners of the mobile phone 4801 are shown. The state where it is chamfered so as to have a smooth convex shape is shown. As described above, the outer shape of the corner portion of the mobile phone 4801 prevents substantial pain when the elastic member 4863a or 4863b is applied to the ear cartilage, and the corner portion of the mobile phone 4801. Is suitable for cartilage around the ear canal entrance inside the auricle and enables comfortable listening by cartilage conduction. Further, the chamfered corner portion closes the ear canal entrance portion to produce an ear plug bone conduction effect, and the audio signal from the mobile phone 4801 is strengthened in the ear canal, and the ear canal entrance portion is closed to the outside world. This makes it easier to hear voice signals under noise.

  78B is a cross-sectional view of the cellular phone 4801 cut along a plane perpendicular to the front surface and the side surface along a B1-B1 cut surface in FIG. 78A. FIG. ) Or FIG. 78B is a cross-sectional view of the cellular phone 4801 cut along a plane perpendicular to the front surface and the top surface along a B2-B2 cut surface shown in FIG. 78 (B). 78B or 78C also shows that the corners of the elastic body portions 4863a, 4863b, 4863c, and 4863d are chamfered so as to have a smooth convex surface. In addition, as indicated by an arrow 25g in FIG. 78B or 78C, the main vibration direction of the piezoelectric bimorph element 2525b is a direction perpendicular to the display surface of the GUI display portion 3405. Further, as shown by an arrow 25m in FIG. 78B, the main vibration direction of the piezoelectric bimorph element 2525a is a direction perpendicular to the display surface of the GUI display portion 3405.

  In the embodiment 52, the switches 4824a, 4826a and 4836a in FIG. 77 are shown as mechanical switch symbols. However, in practice, it is preferable that the switches are constituted by electronic switches. Also, in the example 52, these switches are automatically switched based on the detection results of the acceleration sensor 49 and the environmental noise microphone 4638 except in the case of switching between the both-side on mode and the one-side on mode. However, it may be configured to be manually switched arbitrarily by the operation unit 9. Also, these switches can be omitted as appropriate. For example, if the embodiment 52 is always simplified so as to be in the connection state shown in FIG. 77, the generation of air conduction sound from the entire housing surface has substantially disappeared, and the elastic body portion 4863a or the elastic body When the portion 4863b is brought into contact with the ear cartilage, a mobile phone in which cartilage conduction occurs is obtained.

  Various features of each embodiment described above are not limited to individual embodiments, and can be appropriately replaced or combined with features of other embodiments. For example, in Example 52 of FIGS. 77 and 78, a piezoelectric bimorph element is employed as the cartilage conduction vibration source. However, the cartilage conduction vibration source is the Example 48 of FIGS. 72 and 73, or the Example 50 of FIG. Alternatively, another vibrator such as an electromagnetic vibrator as in the embodiment 51 of FIG. 76 may be replaced.

  FIG. 79 is a graph showing an example of actual measurement data of a mobile phone configured based on the embodiment 46 of FIG. 79 is the graph of FIG. 2A or FIG. 2 in which the mobile phone 4201 of Example 46 (configuration in which vibration from the vibration source inside the outer wall is transmitted to the outer wall surface) is used for the description of Example 1. According to (B), without contact with the ear ring, the outer wall surface at the corner of the mobile phone 4201 is brought into contact with at least a part of the ear cartilage around the ear canal entrance. It shows the sound pressure in relation to the frequency. The vertical axis of the graph is the sound pressure (dBSPL), and the horizontal axis is the logarithmic scale frequency (Hz). In addition, the graph shows the contact pressure between the outer wall surface of the corner of the mobile phone 4201 and the cartilage around the ear canal entrance, and the sound pressure in a non-contact state is slightly touched by a solid line (contact pressure 10 weight grams). The sound pressure in the state in which the mobile phone 4201 is normally used (contact pressure 250 weight grams) is the dashed line, and the ear canal is closed by increasing the contact pressure (contact pressure 500 weight grams). The pressure is illustrated by a two-dot chain line. As shown in the figure, the sound pressure is increased by contact at a contact pressure of 10 weight grams from the non-contact state, further increased by increasing the contact pressure to 250 weight grams, and the contact pressure is further increased from this state to 500 weight grams. As a result, the sound pressure further increases.

  As is apparent from the graph of FIG. 79, the outer wall surface of the mobile phone 4201 having an outer wall surface and a vibration source arranged on the inner side of the outer wall surface and transmitting the vibration of the vibration source to the outer wall surface is the ring. When contacted with at least a part of the ear cartilage around the ear canal entrance without contact with the sound, the sound pressure in the ear canal 1 cm behind the ear canal entrance is higher than the non-contact state in the main frequency band of sound (500 Hz to It can be seen that there is an increase of at least 10 dB at 2300 Hz). (Refer to the comparison between the non-contact state indicated by the solid line and the state in which the mobile phone 4201 indicated by the alternate long and short dash line is normally used.)

  As is apparent from the graph of FIG. 79, when the outer wall surface of the mobile phone 4201 is brought into contact with at least a part of the ear cartilage around the ear canal entrance without contacting the ear ring, the change in contact pressure causes the ear canal entrance. It can be seen that the sound pressure in the ear canal 1 cm deep changes at least 5 dB in the main frequency band (500 Hz to 2500 Hz) of speech. (Compare and refer to the slight contact state indicated by the broken line and the contact state in the normal use state of the cellular phone 4201 indicated by the dashed line.)

  Further, as is apparent from the graph of FIG. 79, the outer wall surface of the mobile phone 4201 is brought into contact with at least a part of the ear cartilage around the ear canal entrance without contacting the ear ring (for example, the ear canal entrance is closed). When the tragus is folded back by strongly pressing the outer wall surface of the mobile phone 4201 to the outside, the ear canal is closed and the ear canal is closed). Compared to the non-contact state, the sound pressure in the ear canal 1 cm behind the ear canal It can be seen that there is an increase of at least 20 dB in a wide frequency band (300 Hz to 1800 Hz). (Refer to the comparison between the non-contact state indicated by the solid line and the state where the ear canal indicated by the two-dot chain line is closed.)

  Note that all the measurements in FIG. 79 are in a state where the output of the vibration source is not changed. In addition, the measurement in FIG. 79 is performed in a state where the outer wall surface is in contact with the outer side of the tragus as a state in which the outer wall surface is brought into contact with at least a part of the ear cartilage around the ear canal entrance without contact with the ear ring. In addition, the measurement in the state where the external auditory canal is closed in FIG. 79 is performed by creating a state in which the external auditory canal is folded back by pressing the tragus more strongly from the outside as described above. .

  As described above, the measurement in FIG. 79 is performed with the surface of the outer wall corner portion of the mobile phone 4201 in the embodiment 46 shown in FIG. 69 in contact with the outer side of the tragus. The elastic body portions 4263a and 4263b serving as protectors are made of a material different from other portions of the outer wall. And a vibration source is hold | maintained at the inner surface side of the outer wall corner | angular part comprised by the elastic-body parts 4263a and 4263b. Note that the outer wall corner portion of the mobile phone 4201 is a portion exposed to an external collision, and even when the elastic body portions 4263a and 4263b are configured, relative displacement with other portions of the outer wall does not occur. Are firmly joined.

  Note that the measurement graph of FIG. 79 is merely an example, and there are individual differences when viewed in detail. Further, the measurement graph of FIG. 79 is measured in a state where the outer wall surface is in contact with a small area only on the outer side of the tragus in order to simplify and standardize the phenomenon. However, the increase in sound pressure due to contact also depends on the contact area with the cartilage. If contacted, the increase in sound pressure is further increased. Considering the above, the numerical values shown in the measurement graph of FIG. 79 have generality indicating the configuration of the mobile phone 4201, and are reproducible by an unspecified number of subjects. Furthermore, the measurement graph of FIG. 79 is obtained by folding the tragus by increasing the contact pressure by pressing the tragus from outside when closing the ear canal entrance. Similar results are obtained when the inlet is pushed in and closed. 79 is a measurement by holding the vibration source inside the corner of the outer wall like the mobile phone 4201 of the embodiment 46 of FIG. 69, but is not limited to this, and other embodiments Is also reproducible. For example, as shown in FIG. 72, there is reproducibility even in a configuration in which the vibration source is held inside the elastic body portions 4363a and 4363b serving as protectors (for example, an embedded configuration).

  In other words, the measurement graph of FIG. 79 has a vibration source disposed on the inner side of the outer wall surface, and the outer wall surface of the mobile phone configured to transmit the vibration of the vibration source to the outer wall surface without contacting the ear ring. When contacted with at least a part of the ear cartilage around the ear canal entrance, the sound pressure in the ear canal 1 cm behind the ear canal is at least within the main frequency band (500 Hz to 2300 Hz) of speech compared to the non-contact state. This is sufficient to understand the feature of the mobile phone itself of the present invention that increases at least 10 dB in a part (for example, 1000 Hz).

  Further, the graph of FIG. 79 shows that when the outer wall surface of the mobile phone is brought into contact with at least a part of the ear cartilage around the ear canal entrance without contact with the ear ring, the ear canal 1 cm deep from the ear canal entrance due to the increase in contact pressure. It is sufficient for the understanding of the characteristics of the mobile phone itself of the present invention that the sound pressure increases within at least a part (for example, 1000 Hz) of the main frequency band (500 Hz to 2500 Hz) of voice.

  Furthermore, the graph of FIG. 79 shows that when the ear canal entrance is closed by bringing the outer wall surface of the mobile phone into contact with at least a part of the ear cartilage around the ear canal entrance without contacting the ear ring, compared to the non-contact state, It is sufficient for the understanding of the characteristics of the mobile phone itself of the present invention that the sound pressure in the ear canal 1 cm behind the ear canal increases by at least 20 dB in at least a part (for example, 1000 Hz) of the main frequency band (300 Hz to 1800 Hz) of speech. It is a thing.

  Further, the mobile phone of the present invention confirmed by the measurement in the graph of FIG. 79 has the following significance. That is, the present invention has a vibration source disposed on the inner side of the outer wall surface and volume adjusting means, transmits the vibration of the vibration source to the outer wall surface, and transmits the outer wall surface to the ear canal entrance without contact with the ear ring. The present invention provides a mobile phone that listens to sound by contacting at least a part of the ear cartilage around the head, the characteristics of which are defined by the following. That is, in a quiet room with a noise level (A-weighted sound pressure level) of 45 dB or less, the outer wall surface is installed in a non-contact manner near the entrance to the ear canal, and a pure sound of 1000 Hz is generated from the vibration source with a minimum volume. A 1000 Hz narrow band noise (1/3 octave band noise) is generated at a limit level where a 1000 Hz pure tone is masked from a loudspeaker located 1 m away from the ear canal entrance. This is determined by increasing the 1000-Hz narrow-band noise in sequence and determining the magnitude at which the 1000-Hz pure tone is masked and cannot be heard. The 1000 Hz narrow band noise is then raised by 10 dB from the limit level, but according to the mobile phone of the present invention, the volume of the outer wall is brought into contact with at least part of the ear cartilage around the ear canal entrance without contacting the ear ring. A pure tone of 1000 Hz can be heard without changing the adjustment of the adjusting means.

  Furthermore, when the 1000 Hz narrow-band noise is increased by 20 dB from the limit level obtained as described above, according to the mobile phone of the present invention, the outer wall surface is at least one of the ear cartilage around the ear canal entrance without contact with the ear ring. By closing the external ear canal entrance portion in contact with the portion, it is possible to hear a 1000 Hz pure sound without changing the adjustment of the volume adjusting means.

  FIG. 80 is a side view and a cross-sectional view of the ear, showing details of the structure of the ear and the relationship with the mobile phone of the present invention. FIG. 80A is a side view of the left ear 30, and a position 4201a indicated by a one-dot chain line illustrates a state in which a corner of the mobile phone 4201 is in contact with the outside of the tragus. The position 4201a corresponds to the state where the measurement of FIG. 79 is performed. On the other hand, a position 4201b indicated by a two-dot chain line is a state in which the corner of the mobile phone 4201 is in contact with a wider cartilage portion around the entrance portion of the ear canal. At the position 4201b, an increase in sound pressure larger than that shown in FIG. 79 can be realized by contact with the ear cartilage.

  FIG. 80B is a cross-sectional view of the right ear 28 and illustrates a state in which the vibration of the vibration source generated from the corner of the mobile phone 4201 is transmitted to the eardrum 28a. Note that the mobile phone 4201 in the state of FIG. 80B is brought into contact with a wider cartilage portion around the entrance portion of the ear canal according to the position 4201b of FIG. (Although it is not clear only in the cross-sectional view, in this state, it is assumed that the ear canal entrance is not closed.) The vibration 28b generated from the corner of the mobile phone 4201 is cartilage around the ear canal entrance from the contact portion. Then, air conduction sound is generated from the surface of the cartilage outer ear canal to the ear canal 28c. The air conduction sound travels through the ear canal 28c and reaches the eardrum 28a. In addition, air conduction 28d is also generated directly from the corner of the mobile phone 4201, and also proceeds in the ear canal 28c to reach the eardrum 28a. It is only this direct air conduction 28d that the mobile phone 4201 reaches the tympanic membrane 28a without contacting the cartilage.

  Here, it supplements about the frequency characteristic of the piezoelectric bimorph element 2525 used in Example 46 etc. of FIG. The frequency characteristic of the direct air conduction generation of the piezoelectric bimorph element 2525 used in the embodiment of the present invention is not flat, and the air conduction generation on the low frequency side is about that on the high frequency side about 1 kHz. The smaller one is adopted. The frequency characteristic of the piezoelectric bimorph element 2525 regarding the occurrence of direct air conduction closely matches the frequency characteristic in the case where air conduction sound is generated from the piezoelectric bimorph element 2525 via the cartilage directly. That is, the sound pressure in the ear canal according to the frequency characteristics of the air conduction sound via cartilage conduction is higher on the low frequency side than on the high frequency side at about 1 kHz. When the piezoelectric bimorph element 2525 having the generated frequency characteristics is used, the frequency characteristics of the sound that reaches the eardrum as a result of both complementing each other approaches flat. As described above, in the present invention, the cartilage conduction vibration source employs an air conduction sound generation frequency characteristic that is opposite to the frequency characteristic in cartilage conduction.

  This will be specifically described with reference to FIG. 79 which is actually measured data of the embodiment 46 of FIG. The graph of FIG. 79 shows the sound pressure level by applying a sine wave at the same voltage while changing the frequency to the piezoelectric bimorph element 2525 having the structure shown in FIG. The non-contact sound pressure shown indicates substantially the frequency characteristics of air conduction sound generated from the piezoelectric bimorph element 2525. That is, as is clear from the solid line in the graph of FIG. 79, the frequency characteristics of air conduction sound generation by the piezoelectric bimorph element 2525 are not flat. For example, when focusing on a band of about 100 Hz to 4 kHz, the low frequency region is mainly used. The sound pressure is relatively low (for example, 200 Hz to 1.5 kHz), and the sound pressure is large mainly in a high frequency region (for example, 1.5 kHz to 4 kHz). (Note that since the sound pressure measured in FIG. 79 is the sound pressure in the ear canal 1 cm behind the ear canal entrance, it is considered that the effect of the sound pressure enhancement effect by the bare ear gain is seen at 2.5 kHz to 3.5 kHz. Even if this is subtracted and interpreted, it is clear that the sound pressure is relatively higher in the high frequency region than in the low frequency region.) Thus, even when viewed from FIG. 79, the implementation of FIG. It can be seen that the frequency characteristics of the piezoelectric bimorph element 2525 used in Example 46 and the like are not flat, and the generation of air conduction sound on the low frequency side is relatively smaller than that on the high frequency side at about 1 kHz.

  Next, in the graph of 250 g in the normal contact state shown by the one-dot chain line in FIG. 79, a significant increase in sound pressure is recognized from around several hundred Hz on the low frequency region side than 1 kHz, compared with the non-contact state. It continues to at least about 2.5 kHz. Therefore, regarding the piezoelectric bimorph element 2525 which is the same vibration source, a clear difference in the frequency characteristics of the sound measured in the ear canal is observed between air conduction via cartilage conduction and direct air conduction. (That is, the air pressure via cartilage conduction has a large increase in sound pressure especially from several hundred Hz to 2.5 kHz compared with direct air conduction.) As a result, a graph of 250 g in a normal contact state indicated by a one-dot chain line in FIG. As described above, in the case of air conduction via cartilage conduction, the sound pressure in the ear canal results in the frequency characteristics of the sound reaching the tympanic membrane being relatively flat compared to the case of direct air conduction indicated by a solid line.

  Further, in 500 g of the external ear canal closed state indicated by a two-dot chain line in FIG. 79, a significant increase in sound pressure is recognized from several hundred Hz to 1 kHz due to the ear plug bone conduction effect, and for the piezoelectric bimorph element 2525 which is the same vibration source, The difference in frequency characteristics is clearly different from that in the normal contact state of 250 g and the non-contact state. In addition, since the bare ear gain disappears in 500 g of the closed ear canal state indicated by the two-dot chain line, the result of disappearance of the influence of the sound pressure peak from 2.5 kHz to 3.5 kHz recognized in the open ear canal appears. It is considered a thing.

  FIG. 81 is a block diagram of Example 53 according to the embodiment of the present invention. Example 53 is configured as 3D television viewing glasses 2381 capable of listening to stereo audio information in the same manner as Example 25 in FIG. 38, and forms a 3D television viewing system together with 3D television 2301. In the same manner as in Example 25, the vibration of the right ear cartilage conduction vibration portion 2324 disposed on the right temple portion 2382 is transmitted to the outside of the right ear root cartilage via the contact portion 2363 and the left ear The vibration of the left ear cartilage conduction vibration portion 2326 arranged in the vine portion 2384 is transmitted to the outside of the left ear root cartilage via the contact portion 2364. Since the embodiment 53 has a lot in common with the embodiment 25, common portions are denoted by common numbers, and further description is omitted unless necessary. Note that although not shown in FIG. 81, the internal configuration of the 3D television 2301 is the same as that shown in FIG.

  In addition, Example 53 of FIG. 81 is the same structure as Example 46 of FIG. 69 as cartilage conduction vibration part 2324 for right ears and cartilage conduction vibration part 2326 for left ears similarly to Example 25 of FIG. The piezoelectric bimorph element 2525 is used. That is, the right ear cartilage conduction vibration unit 2324 and the left ear cartilage conduction vibration unit 2326 exhibit direct air conduction frequency characteristics that are opposite to the frequency characteristics in cartilage conduction, and have a low frequency around 1 kHz. The air conduction on the side is relatively smaller than that on the high frequency side. Specifically, the right-ear cartilage conduction vibration unit 2324 and the left-ear cartilage conduction vibration unit 2326 employed in the embodiment 53 of FIG. The difference in average air conduction output is 5 dB or more different from an average normal speaker designed assuming air conduction, and exhibits an undesirable frequency characteristic as a normal speaker.

  The embodiment 53 shown in FIG. 81 differs from the embodiment 25 shown in FIG. 38 in that the frequency characteristic correction section 4936 is used when the right ear cartilage conduction vibration section 2324 and the left ear cartilage conduction vibration section 2326 are driven. It is a point to do through. The frequency characteristic correction unit 4936 is provided with a cartilage conduction equalizer 4938 that corrects the frequency characteristic of the sound pressure that becomes an air conduction sound in the ear canal in consideration of the frequency characteristic peculiar to cartilage conduction so as to approach a flat. The cartilage conduction equalizer 4938 basically corrects the frequency characteristics of the drive signals to the right ear cartilage conduction vibration unit 2324 and the left ear cartilage conduction vibration unit 2326, but the right ear cartilage conduction vibration unit 2324 and the left ear It can also be used to individually correct the variation in the cartilage conduction vibration portion 2326 for use. The frequency characteristic correcting unit 4936 is further provided with a cartilage conduction low-pass filter 4940 (for example, cutting 10 kHz or more) for cutting high frequencies. This is because the right-ear cartilage conduction vibration portion 2324 and the left-ear cartilage conduction vibration portion 2326 in Example 53 have shapes that do not cover the ears, and thus prevent unpleasant air conduction divergence to the outside. The characteristics of the low-pass filter are determined in consideration of not cutting a frequency band advantageous for cartilage conduction (for example, 10 kHz or less). As an audio device, it is disadvantageous in terms of sound quality to cut an audible range (for example, 10 kHz to 20 kHz) and higher frequency range. Therefore, in an environment where it is not necessary to consider unpleasant air divergence to the outside. The function of the cartilage conduction low-pass filter 4940 can be manually turned off.

  FIG. 82 is a block diagram of Example 54 according to the embodiment of the present invention. The embodiment 54 is configured as a mobile phone 5001 in the same manner as the embodiment 4 of FIG. Since the embodiment 54 has a lot in common with the embodiment 4, common portions are denoted by the same reference numerals, and description thereof is omitted unless necessary. 82 uses the piezoelectric bimorph element 2525 having the same structure as that of the embodiment 46 of FIG. 69 as the vibration source of the cartilage conduction vibration unit 228 in the same manner as the embodiment 53 of FIG. That is, the vibration source of the cartilage conduction vibration unit 228 exhibits a direct air conduction frequency characteristic that is opposite to the frequency characteristic in cartilage conduction, and the air conduction on the low frequency side is relatively relative to about 1 kHz. The smaller one is used on the high frequency side. Specifically, in the piezoelectric bimorph element employed in Example 54 of FIG. 82, the difference between the average air conduction output from 500 Hz to 1 kHz and the average air conduction output from 1 kHz to 2.5 kHz is the same as in Example 52. However, it is 5 dB or more different from an average cellular phone speaker designed for air conduction, and exhibits frequency characteristics that are undesirable for a normal speaker.

  The embodiment 54 of FIG. 82 differs from the embodiment 4 of FIG. 8 in that the cartilage conduction low-pass filter 5040 for cutting high frequencies when driving the piezoelectric bimorph element of the vibration source of the cartilage conduction vibration unit 228 as described above. (For example, cut at 2.5 kHz or higher) and a cartilage conduction equalizer 5038. Similarly to the embodiment 53, the cartilage conduction equalizer 5038 corrects the frequency characteristic of the sound pressure that becomes an air conduction sound in the ear canal in consideration of the frequency characteristic peculiar to the cartilage conduction so as to approach a flat. Since the sound signal sent through the cartilage conduction equalizer 5038 has been corrected for the frequency characteristic in consideration of the frequency characteristic peculiar to cartilage conduction, the sound signal to the speaker 51 for the video phone on the premise of occurrence of direct air conduction. And have different frequency characteristics.

  In the cartilage conduction equalizer 5038 of the embodiment 54, when the state where the ear hole is blocked and the effect of the ear plug bone conduction is detected by the pressure sensor 242, the correction frequency characteristic is changed from that for the frequency characteristic in the normal contact state. Automatic switching for the frequency characteristics of the state where the ear plug effect is generated. The difference in frequency characteristic correction that is switched at this time corresponds to, for example, the difference between the one-dot chain line (normal contact 250 g) and the two-dot difference line (the ear canal closure 500 g) in FIG. Specifically, the low frequency range is not over-emphasized when the ear plug bone conduction effect occurs, and the frequency characteristic is corrected to compensate for the disappearance of the naked ear gain due to the closure of the ear canal, Relieves the change in sound quality with or without the ear plug bone conduction effect.

  The cartilage conduction low-pass filter 5040 in the embodiment 54 is intended to protect the privacy by preventing the sound in the band that can be heard by the ear from leaking to the outside, and is particularly useful when quiet. Such characteristics of the cartilage conduction low-pass filter 5040 are determined in consideration of not cutting a frequency band (for example, 2.5 kHz or less) in which the sound pressure enhancement effect due to contact with the ear cartilage is significant. Cell phone audio is originally cut at 3kHz or more, but it uses a band of several hundreds of Hz to 2.5kHz, which has a high sound pressure enhancement effect due to cartilage conduction, even without a bare ear gain, and is unique to cartilage conduction. The above-mentioned privacy protection can be rationally achieved by cutting the frequency of 2.5 kHz or more outside the band where the noise occurs. As described above, the effect of the cartilage conduction low-pass filter 5040 is particularly important at the time of silence. Therefore, it can be turned on and off manually, or an environment noise microphone 4638 in the embodiment 50 of FIG. It is desirable to configure to turn on automatically. In addition, in the configuration that can be manually turned on / off, when the cartilage conduction equalizer 5038 is used for the frequency characteristics in the state where the ear plug bone conduction effect is generated, it is assumed that the noise is large, so the cartilage conduction low-pass filter 5040 It is configured to forcibly turn off if it is manually turned on.

  The implementation of various features of the present invention shown in the above embodiments is not limited to the above embodiments. For example, in Example 53 and Example 54 described above, when the frequency characteristic of the final air conduction sound that has passed through cartilage conduction is close to flat, the air conduction sound having a frequency characteristic different from the normal air conduction generation frequency characteristic. However, one of them can be omitted. For example, when a cartilage conduction vibration source that matches well with the frequency characteristics of cartilage conduction is used, the cartilage conduction equalizer can be omitted. On the other hand, as the cartilage conduction vibration source, the one with the frequency characteristic that generates air conduction sound according to the normal air conduction speaker is adopted, and the frequency characteristic of the final air conduction after cartilage conduction is adopted. It is also possible to have a configuration in which functions for achieving a flat shape are concentrated on the cartilage conduction equalizer.

  FIG. 83 is a perspective view and a cross-sectional view related to Example 55 according to the embodiment of the present invention, and is configured as a mobile phone 5101. Since Example 55 is common to Example 46 shown in FIG. 69 except for the holding structure of the cartilage conduction vibration source 2525 constituted by a piezoelectric bimorph element and the addition of a T coil described later, the same reference numerals are given to the common parts. The description is omitted unless it is necessary.

  First, the holding structure of the cartilage conduction vibration source 2525 in Embodiment 55 will be described. As is apparent from the perspective view of FIG. 83A, cartilage conduction portions 5124 and 5126 made of a hard material are provided at the left and right corners of the mobile phone 5101. As the cartilage conduction portions 5124 and 5126, for example, ABS resin, fiber reinforced plastic, fine ceramic with high toughness, and the like are suitable. Between the cartilage conduction parts 5124 and 5126 and the housing of the mobile phone 5101, vinyl-based and urethane-based elastic bodies 5165b and 5165a are interposed, and function as vibration isolating materials and buffer materials.

  Further, as is apparent from FIGS. 83B and 83C, the cartilage conduction portions 5124 and 5126 have a structure that holds the piezoelectric bimorph element 2525 inside thereof. The piezoelectric bimorph element 2525 has a holding structure that does not directly contact the casing of the mobile phone 5101 due to the intervention of the elastic bodies 5165b and 5165a. Thus, the vibration energy of the piezoelectric bimorph element 2525 is concentrated on the cartilage conduction parts 5124 and 5126 so as not to be dispersed in the casing of the mobile phone 5101.

  Further, as indicated by a broken line in FIG. 83A, a T-coil 5121 is disposed inside the upper center of the mobile phone 5101 in the embodiment 55. The T coil 5121 is used to transmit sound information by electromagnetic induction to a hearing aid provided with a corresponding T coil. The relationship between the transmission of sound information by the T coil and the transmission of sound information by cartilage conduction will be described later.

  FIG. 84 is a block diagram of the embodiment 55 shown in FIG. 83. The same parts as those in FIG. Also, the configuration of the block diagram of FIG. 84 has many common points with the block diagram of the embodiment 54 in FIG. .

  As described above, the embodiment 55 has the T coil 5121, and when the user of the mobile phone 5101 wears the hearing aid equipped with the T coil, the sound information is transmitted to the hearing aid by electromagnetic induction by the T coil 5121. can do. Some hearing aids equipped with a T-coil can turn on and off the T-coil function, and when the T-coil is turned on, some hearing aids can be turned on and off. Corresponding to this, in the mobile phone 5101 of the 55th embodiment, it is possible to select whether or not the T-coil 5121 is caused to function by turning on and off the switch 5121a in response to the operation of the operation unit 9. A switch 5121b for forcibly turning off the cartilage conduction vibration unit 228 including the piezoelectric bimorph element 2525 is provided in conjunction with selection of ON of the T coil 5121.

  As already explained, even when the cartilage conduction is plugged in the ear, an air conduction sound is generated inside the external auditory canal with the effect of the ear plug bone conduction. As a result, even when the ear canal is blocked by the hearing aid, sound can be heard by cartilage conduction using the piezoelectric bimorph element 2525 as a vibration source without the T coil 5121 being turned on. Cartilage conduction is basically caused by bringing the cartilage conduction part 5124 or 5126 into contact with the ear cartilage, but by bringing the cartilage conduction part 5124 or 5126 into contact with the hearing aid, the vibration is conducted to the ear cartilage around the hearing aid. It is also possible to generate air conduction sound in the ear canal. Further, depending on how the cartilage conduction portion 5124 or 5126 is applied, contact with both the ear cartilage and the hearing aid occurs, and air conduction sound can be generated in the external auditory canal in the above-described coexistence state. As described above, the mobile phone 5101 of the present invention can be used by the user of the hearing aid even when the T-coil 5121 is turned off.

  The switch 5121b prevents the above-described cartilage conduction from occurring simultaneously when the T-coil 5121 is caused to function when the switch 5121a is turned on, and prevents a sense of incongruity compared to the normal listening of the sound by the T-coil. This is to prevent power consumption due to unnecessary cartilage conduction during the operation of the T coil 5121. It should be noted that the T-coil 5121 is usually displayed in the operation menu of the operation unit 9 displayed on the large screen display unit 205 in order to prevent the interlocking off of cartilage conduction when the T-coil 5121 is turned on by an erroneous operation from being confused with a failure. It is desirable to configure so that the menu for turning on does not appear, and the T coil 5121 is not turned on unless the operation unit 9 is intentionally operated by following a predetermined procedure.

  FIG. 85 is a side view for explaining the distribution of vibration energy in the mobile phone 5101 in the above-mentioned embodiment 55, and since there are many places in common with FIG. Omitted. As shown in FIG. 83, the cartilage conduction portions 5124 and 5126 directly holding the piezoelectric bimorph element 2525 are held in the casing of the mobile phone 5101 through the elastic bodies 5165b and 5165a. Accordingly, the vibration of the piezoelectric bimorph element 2525 is effectively conducted to the ear cartilage from the cartilage conduction portions 5124 and 5126, and the vibration of the piezoelectric bimorph element 2525 is not directly in contact with the casing of the mobile phone 5101. It is difficult to communicate. That is, the vibration energy of the piezoelectric bimorph element 2525 is concentrated on the cartilage conduction parts 5124 and 5126 and is not dispersed in the casing of the mobile phone 5101.

  Specifically, in FIG. 85, since vibration energy is concentrated on the cartilage conduction portions 5124 and 5126, the positions (1) and (2) on the surface of the casing of the mobile phone 5101 (circled numbers 1, 2) is the largest, and at a position (3) between the cartilage conduction portions 5124 and 5126 in the casing of the mobile phone 5101 (see the circled number 3 in the figure), the vibration acceleration and amplitude are Slightly smaller. Then, in the order of position (4), position (5) (see circled numbers 4 and 5 in the figure), the vibration acceleration and amplitude on the housing surface of the mobile phone 5101 the further away from the positions (1) and (2). Is getting smaller. For example, the vibration acceleration and amplitude on the surface of the casing of the mobile phone 5101 at a position (5) that is 5 cm or more away from each of the positions (1) and (2) are ¼ of the vibration acceleration and amplitude on the surfaces of the cartilage conduction portions 5124 and 5126. Or less (25% or less). FIG. 85A shows a state in which the mobile phone 5101 having such vibration distribution is placed on the right ear 28 to obtain a suitable cartilage conduction, and FIG. 85B shows the state where the mobile phone 5101 is placed on the left ear 30. Similarly, a state where a suitable cartilage conduction is obtained is shown.

  The characteristic that the vibration energy for cartilage conduction as described above concentrates on the contact assumed portion of the ear canal with the ear cartilage is not limited to the embodiment 55 shown in FIG. 83 to FIG. It also appears in some of the examples. For example, in Examples 1-3, 11-14, 29-33, 35, 36, 42-44, 46-50, 52, 55, the vibration acceleration or vibration amplitude in the contact assumption portion is far from the contact assumption portion. This is an example that is larger than the vibration acceleration or vibration amplitude in the portion, and particularly in the configurations of Examples 29, 30 to 33, 42 to 43, 46 to 50, 52, and 55 as described later. For the reason described later, the vibration acceleration or the amplitude of vibration monotonously decreases as the distance from the contact assumption portion increases with the contact assumption portion as a center.

  In the present invention, the contact assumed portion for concentrating vibration energy for cartilage conduction does not protrude from the housing and does not take a shape that hinders the use of the mobile phone. Furthermore, the contact assumption portion is located at a position deviating from the vertical central axis and the horizontal central axis of the housing, and is suitably arranged for contact with the ear cartilage at the entrance to the ear canal. Specifically, the contact assumption portion is in a corner portion of the mobile phone or an upper side portion or a side portion near the corner portion. In other words, the arrangement described above provides a suitable configuration in which the outer wall surface is brought into contact with at least a part of the ear cartilage around the ear canal entrance without contact with the ear ring.

  As described above, according to the present invention, vibration energy can be concentrated not only in the embodiment 55 shown in FIGS. 83 to 85 but also in other embodiments in the contact assumed portion of the ear canal with the ear cartilage. When this feature is classified, first of all, in Example 29, Example 30, Modification Example 2 of Example 31, Example 32, Example 33, and Example 55, the contact assumption part and the mobile phone casing are This is an example in which this is realized by isolating with an elastic body. Secondly, in Example 29, Example 30, Example 32, and Example 33, vibration energy is concentrated on the contact assumed portion by avoiding the main vibration direction of the piezoelectric bimorph element and supporting it on the mobile phone casing. It is an example. Third, Example 30, Example 31, and Example 47 are examples in which vibration energy is concentrated on the contact assumed part by reducing the contact area between the contact assumed part and the mobile phone casing that supports the contact assumed part. . Fourthly, in Examples 42 to 44, Example 46 and their modifications, Examples 48 to 50, Example 52, and Example 55, the holding position of the vibrator is limited to the vicinity of the contact portion. This is an example in which vibration energy is concentrated on the contact assumed portion. Fifth, Example 46 and its modified examples, Examples 48 to 50, Example 52, and Example 55 can be made into a contact assumption part by making the material of the contact assumption part different from the cellular phone housing. This is an example of concentrating vibration energy. It should be noted that, as is clear from the overlapping examples in the above classification, it is possible to actually employ a combination of a plurality of features classified above.

  The various features of the present invention are not limited to the above embodiments. For example, as a modified example of the embodiment 55, a hole larger than the cross section of the piezoelectric bimorph element 2525 is formed in each of the elastic bodies 5165b and 5165a whose cross section is shown in FIG. 83 (B), and the piezoelectric bimorph element 2525 is inserted into the cartilage conduction portion through this hole. It can also be configured to be held in 5124 and 5126. In this case, the piezoelectric bimorph element 2525 is not in direct contact with the elastic bodies 5165b and 5165a, and vibration energy of the piezoelectric bimorph element 2525 is prevented from being distributed to the casing of the mobile phone 5101 via the elastic bodies 5165b and 5165a. It becomes possible to do.

  In addition, the embodiment 55 has a structure for transmitting vibrations at both ends of one piezoelectric bimorph element 2525 to the left and right cartilage conduction portions 5124 and 5126 in the same manner as the embodiment 46 shown in FIG. Implementation of features such as Example 55 is not limited to this. For example, the holding structure of the embodiment 55 of FIG. 83 may be applied to a structure in which one side of the piezoelectric bimorph element 2525 is supported by a cantilever structure as in the embodiment 42 of FIG. Further, in the configuration employing the right-ear piezoelectric bimorph element 2525b and the left-ear piezoelectric bimorph element 2525a as in the embodiment 52 of FIG. 77, when these are supported by the cantilever structure, the implementation of FIG. The holding structure of Example 55 may be applied.

  As already described, the right ear and left ear cartilage conduction vibrators can be independently controlled as in the first to third embodiments in FIGS. 1 to 7 and the fifth embodiment in FIG. 77. The vibration of the vibrating part that is not in contact with the ear cartilage can be stopped. In this case, in FIG. 85A showing a state where the cartilage conduction portion 5124 is applied to the right ear 28, the vibration energy distribution when the vibration of the cartilage conduction portion 5126 is stopped is the vibration acceleration and amplitude at the position (1). The vibration acceleration and amplitude decrease in the order of position (3), position (2), position (4), and position (5). On the other hand, in FIG. 85B showing the state where the cartilage conduction portion 5126 is applied to the left ear 30, the distribution of vibration energy when the vibration of the cartilage conduction portion 5124 is stopped is the vibration acceleration at the position (2) and The amplitude is the largest, and then the vibration acceleration and amplitude become smaller in the order of position (3), position (1), position (4) and position (5).

  FIG. 86 is a perspective view and a cross-sectional view regarding Example 56 according to the embodiment of the present invention, which is configured as a mobile phone 5201. In addition, since Example 56 is common with Example 55 shown in FIG. 83 except the holding direction of the cartilage conduction vibration source 2525 configured by the piezoelectric bimorph element, the same number is assigned to the common part unless it is necessary. Description is omitted.

  83, the metal plate 2597 of the cartilage conduction vibration source 2525 is arranged so as to be parallel to the front surface of the mobile phone 5101, and the main vibration direction is perpendicular to the GUI display unit 3405. On the other hand, in the embodiment 56 of FIG. 86, the metal plate 2599 of the cartilage conduction vibration portion 5225 is disposed so as to be perpendicular to the front surface of the mobile phone 5201. As a result, the embodiment 42 shown in FIG. In the same manner as the first modification example, the main vibration direction of the cartilage conduction vibration unit 5225 is parallel to the GUI display unit 3405. As in the case shown in FIG. 85, the configuration of the embodiment 56 is the first modification of the embodiment 42 after the front side of the corner portion (cartilage conduction portion 5124 or 5126) of the mobile phone 5201 is applied to the ear cartilage. It is suitable for the use which touches the ear cartilage in the form which pushes up the upper surface side of a corner | angular part lightly like. Since the vibration is concentrated on the cartilage conduction portion 5124 or 5126, sufficient cartilage conduction can be obtained by simply placing the front side of the corner (cartilage conduction portion 5124 or 5126) on the ear cartilage.

  86, since the main vibration direction of the cartilage conduction vibration unit 5225 is parallel to the front surface of the mobile phone 5201 (including the GUI display unit 3405), a large area of the outer surface of the mobile phone 5201 is obtained. The vibration component transmitted to the front and back surfaces occupying is small. As a result, sound leakage due to the air conduction sound generated in these large areas can be further reduced.

  Note that the cartilage conduction vibration portion 5225 in the direction as in the embodiment 56 of FIG. 86 is not limited to the embodiment 56, and the embodiment 46 of FIG. 69, the embodiment 46 of FIG. 71, and the embodiment of FIG. It can also be employed in other embodiments such as 49.

  FIG. 87 is a block diagram related to Example 57 according to the embodiment of the present invention, and is configured as a mobile phone 5301. In Example 57, a drive circuit of a piezoelectric bimorph element 5325 serving as a cartilage conduction vibration source is configured as a one-chip integrated power management IC 5303 together with a power management circuit that supplies power to each part of the mobile phone 5301.

  The integrated power management IC 5303 includes a power management unit 5353, and is connected to a digital baseband unit 5312, an analog baseband unit 5313, and an antenna 5345 that constitute a telephone communication unit based on power supply from the battery 5348. A predetermined different power supply voltage is supplied to each of the units 5322 and the like. The power management unit 5353 further includes an application processor 5339 corresponding to the control unit 39 and the like shown in the other embodiments, a camera unit 5317 (the rear main camera and the video phone inner camera shown in the other embodiments are collectively illustrated. ), A predetermined different power supply voltage is supplied to the liquid crystal display device 5343 and the touch panel 5368 in the display portion 5305, respectively. The application processor 5339 controls the entire mobile phone 5301 in cooperation with the memory 5337 (the program holding function and the data writing holding function are collectively shown), and the memory card 5319 (the slot and the card are shown together) and the USB ( Signals can be exchanged with an external device via a registered trademark connection terminal 5320.

  The power management unit 5353 also has predetermined control units 5321 in the integrated power management IC 5303, an analog front end unit 5336, an amplifier 5341 for a videophone speaker 5351, a cartilage conduction acoustic processing unit 5338, a charge pump circuit 5354, and the like. Supply different power supply voltages. The charge pump circuit 5354 is for boosting the voltage for the piezoelectric bimorph element 5325 requiring a high voltage.

  The analog front end unit 5336 receives an analog audio signal from the application processor 5339 outside the integrated power management IC 5303 and supplies the analog audio signal to the videophone speaker 5351 via the amplifier 5341. Supply audio signals. The analog front end unit 5336 transmits the user's analog audio signal picked up by the microphone 5323 to an external application processor 5339.

  The charge pump circuit 5354 performs a step-up operation in cooperation with the external capacitor 5355 connected through the external terminals 5355a and 5355b, and supplies a voltage necessary for driving the piezoelectric bimorph element 5325 to the amplifier 5340. Thus, the audio signal from the analog front end unit 5336 drives the piezoelectric bimorph element 5325 via the cartilage conduction acoustic processing unit 5338 and the amplifier 5340. As examples of functions of the cartilage conduction acoustic processing unit 5338, the sound quality adjustment unit 238 and the waveform inversion unit 240 shown in Example 4 of FIG. 8, the cartilage conduction low-pass filter 5040 shown in Example 54 of FIG. A conductive equalizer 5038 or the like is applicable, but is not limited to this.

  The control unit 5321 exchanges digital control signals with the application processor 5339 outside the integrated power management IC 5303 to control the power management unit 5353. In addition, the control unit 5321 controls the analog front end unit 5336 based on an instruction from the application processor 5339, and sends the analog audio signal received from the application processor 5339 to the amplifier 5341 for driving the videophone speaker 5351 or the cartilage conduction. Switching between transmission to the acoustic processing unit 5338 and the like are performed. In addition, the analog front end unit 5336 performs a process in which the click sound accompanying the switching is not output to the earphone jack 5313 or the like.

  Further, the control unit 5321 exchanges digital control signals with the application processor 5339 outside the integrated power management IC 5303, and performs the cartilage conduction acoustic processing unit related to the sound quality adjustment, waveform inversion, cartilage conduction low pass filter, cartilage conduction equalizer, and the like exemplified above. Control.

  As described above, in Example 57 of FIG. 87, the drive circuit of the cartilage conduction vibration unit is configured as a one-chip integrated IC together with the power management circuit, so that the cartilage conduction vibration unit can be directly driven and Power supply voltage supply to the cartilage conduction vibration unit can be performed in an integrated manner with supply of power supply voltage to various components, and control thereof can also be performed in an integrated manner. In addition, since the cartilage conduction acoustic processing unit for the cartilage conduction vibration unit is a one-chip integrated IC together with the power management unit, control for acoustic processing and control of the power management unit can be performed in an integrated manner. When a piezoelectric bimorph element is used as the cartilage conduction vibration unit, a high voltage is required for driving, but the drive circuit of the cartilage conduction vibration unit is integrated with the power management unit as a one-chip integrated IC as in Example 57 of FIG. By configuring, the piezoelectric bimorph element can be driven without adding another chip for the booster circuit. Furthermore, the cartilage conduction acoustic processing unit unique to the driving of the cartilage conduction vibration unit can be integrated with the power management unit as well as the audio signal control of the piezoelectric bimorph element by using a one-chip integrated IC. Therefore, a suitable cartilage conduction function can be imparted to the mobile phone simply by inputting a normal audio signal to the integrated IC and connecting the cartilage conduction vibration unit to the integrated IC.

  Furthermore, the analog front end unit and the power management unit are integrated into a one-chip integrated circuit, so that switching adjustment of audio signal output can be performed collectively. Specifically, the exchange of digital control signals between the integrated IC and the application processor related to the functions of the entire mobile phone including the function of the cartilage conduction vibration unit and the exchange of analog audio signals between the integrated IC and the application processor Can be integrated.

  As in the embodiment 57 of FIG. 87, the circuit configuration in which the drive circuit of the cartilage conduction vibration unit is configured as a one-chip integrated IC together with the power management unit can be applied to the various embodiments described so far.

  FIG. 88 is a perspective view and a cross-sectional view related to Example 58 according to the embodiment of the present invention, and is configured as a mobile phone 5401. Since Example 58 is the same as Example 55 shown in FIG. 83 except for the configuration for countermeasures against sound leakage caused by air-conducted sound, which will be described later, the same reference numerals are given to the common parts and the description will be made unless necessary. Omitted.

  In the embodiment 58 of FIG. 88, in the same manner as the embodiment 55 shown in FIG. 83, the cartilage conduction portions 5124 and 5126 of the hard material holding the cartilage conduction vibration source 2525 are carried through the elastic bodies 5165b and 5165a. Some vibration is transmitted to the housing of the telephone 5401. As a result, the front and back surfaces occupying a large area of the outer surface of the mobile phone 5401 vibrate, and some sound leakage due to air conduction sound occurs. In Example 58 of FIG. 88, as a countermeasure against such sound leakage, the outer surface of the casing of the mobile phone 5401 is covered with an elastic body 5463 except for the GUI display portion 3405 and the microphone 23. At this time, the elastic body 5463 is bonded so as to be integrated with the housing of the mobile phone 5401. Note that a portion of the GUI display unit 3405 is an opening so as not to hinder the GUI operation. Further, the microphone 23 is configured as a microphone cover portion 467 having a sponge-like structure or the like that does not hinder air conduction as in the fifth embodiment of FIG.

  The elastic body 5463 that covers the outer surface of the casing of the cellular phone 5401 is preferably a vibration isolation material and a buffer material such as vinyl and urethane similar to or similar to the elastic bodies 5165b and 5165a. Thus, in the embodiment 58 of FIG. 88, the cartilage conduction portions 5124 and 5126 made of a hard material holding the cartilage conduction vibration source 2525 are wrapped around the elastic bodies 5165b and 5165a and the elastic body 5463 and then carried. The phone 5401 is in contact with the housing. Accordingly, the cartilage conduction vibration source 2525 itself does not directly contact the casing of the mobile phone 5401.

  Further, since the elastic body 5463 is bonded to be integrated with a large area portion of the housing surface of the mobile phone 5401 instead of a removable cover as in the fifth embodiment of FIG. Vibration of a large area on the surface of the casing of the cellular phone 5401 is suppressed in both the inside and outside directions with respect to the amplitude and vibration energy is absorbed. Further, elasticity is generated on the surface of the mobile phone 5401 that is in contact with air. Accordingly, the generation of air conduction sound from the casing surface of the mobile phone 5401 due to the vibration of the cartilage conduction vibration source 2525 transmitted to the casing of the mobile phone 5401 is reduced. On the other hand, since the elastic body 5463 has an acoustic impedance similar to that of the ear cartilage, the cartilage conduction from the cartilage conduction parts 5124 and 5126 to the ear cartilage is good. Note that the cover of the housing surface of the mobile phone 5401 with the elastic body 5463 also functions as a protector when the mobile phone 5401 collides with the outside.

  FIG. 89 is a perspective view and a cross-sectional view regarding Example 59 according to the embodiment of the present invention, which is configured as a mobile phone 5501. Since Example 59 is common to Example 42 shown in FIG. 65 except for the configuration for measures against sound leakage due to air conduction sound, the sectional views of FIGS. 89 (B) and 89 (C) are shown in FIG. Portions common to those in the cross-sectional views of FIGS. 65A and 65B are denoted by the same reference numerals, and description thereof is omitted unless necessary. Also, the perspective view of FIG. 89 (A) is the same as that of the embodiment 58 of FIG. 88 (A), so the same reference numerals are given to the common parts and the description is omitted unless necessary.

  In Example 59 of FIG. 89, one end of the piezoelectric bimorph element 2525 is held in the hole of the support structure 3800a that extends inward from the side surface 3807 and the upper surface 3807a of the mobile phone 5501 and holds the cartilage conduction vibration source 2525. Therefore, the vibration of the cartilage conduction vibration source 2525 is transmitted from the support structure 3800a to the casing of the mobile phone 5501 through the side surface 3807 and the upper surface 3807a of the mobile phone 5501, and the front surface occupying a large area of the outer surface of the mobile phone 5501 The back side vibrates. And the sound leakage due to the generation of the air conduction sound is larger than that in the embodiment 56 of FIG. However, in the embodiment 59 of FIG. 89, as in the case of the embodiment 58 of FIG. 88, as a countermeasure against such sound leakage, the outer surface of the casing of the mobile phone 5501 is an elastic body except for the GUI display portion 3405 and the microphone 23. Cover with 5563. At this time, the elastic body 5563 is bonded so as to be integrated with the housing of the mobile phone 5501. Note that a portion of the GUI display unit 3405 is an opening so as not to hinder the GUI operation. Further, the microphone 23 is configured as a microphone cover portion 467 having a sponge-like structure or the like that does not hinder air conduction as in the fifth embodiment of FIG. These are the same as in the embodiment 58 of FIG.

  The elastic body 5563 that covers the outer surface of the casing of the cellular phone 5501 is desirably a vibration isolating material such as vinyl or urethane, and a cushioning material in the same manner as in the embodiment 58 of FIG. With the configuration as described above, also in the embodiment 59 of FIG. 89, the vibration of the large area portion of the housing surface of the mobile phone 5501 is suppressed in both the inner and outer directions in the amplitude by the weight and elasticity of the elastic body 5563 to be coated. At the same time, vibration energy is absorbed. Further, elasticity is also generated on the surface of the mobile phone 5501 in contact with air. As a result, the generation of air conduction sound from the housing surface of the mobile phone 5501 due to the vibration of the cartilage conduction vibration source 2525 is alleviated. On the other hand, since the acoustic impedance of the elastic body 5563 is similar to that of the ear cartilage, the cartilage conduction from the upper corner 3824, which is a portion suitable for applying to the ear cartilage such as the tragus, is good. In addition, the covering of the casing surface of the mobile phone 5501 with the elastic body 5563 also functions as a protector when the mobile phone 5501 collides with the outside, as in the embodiment 58 in FIG.

  90 is a perspective view and a cross-sectional view related to Example 60 according to the embodiment of the present invention, and is configured as a mobile phone 5601. FIG. In addition, since Example 60 is common with Example 46 shown in FIG. 69 except the structure for the sound leakage countermeasure by air conduction sound, the same number is attached | subjected to a common part and description is abbreviate | omitted unless it is required. .

  In the embodiment 60 of FIG. 90, similarly to the embodiment 46 of FIG. 69, elastic body portions 5663a and 5663b serving as protectors are provided at the upper two corners of the mobile phone 5601. The inner side also serves as holding parts at both ends of the cartilage conduction vibration source 2525, and the outer side also serves as a cartilage conduction part that contacts the ear cartilage. These elastic body parts 5663a and 5663b are elastic materials (silicone rubber, a mixture of silicone rubber and butadiene rubber, natural rubber, or a structure in which air bubbles are sealed, or In addition, a structure in which a single air bubble group such as that seen in a transparent packing sheet material is separated and sealed with a synthetic resin thin film is employed.

  Also in the embodiment 60 of FIG. 90, some components of the vibrations of the elastic body portions 5663a and 5663b holding the cartilage conduction vibration source 2525 are transmitted to the casing of the mobile phone 5601, and on the outer surface of the mobile phone 5601 The front and back surfaces occupying a large area vibrate and generate air conduction sound. However, also in Example 60 of FIG. 90, as a countermeasure against sound leakage caused by the above air conduction sound, the elastic body 5663 of the same material is extended from the elastic body portions 5663a and 5663b into a sheet shape, and this elastic body Reference numeral 5663 covers the outer surface of the casing of the cellular phone 5601 excluding the GUI display portion (the same portion as 3405 in FIGS. 88 and 99) and the microphone 23 portion. Also in the embodiment 60 of FIG. 90, the elastic body 5663 is bonded to be integrated with the housing of the mobile phone 5601 in the same manner as the embodiment 58 of FIG. 88 and the embodiment 59 of FIG. Note that a portion of the GUI display unit 3405 is an opening so as not to hinder the GUI operation. Further, the microphone 23 is configured as a microphone cover portion 467 having a sponge-like structure or the like that does not hinder air conduction as in the fifth embodiment of FIG. These are the same as Example 58 in FIG. 88 and Example 59 in FIG.

  With the above configuration, also in the embodiment 60 of FIG. 90, the vibration of the large area of the housing surface of the mobile phone 5601 is suppressed in both the inner and outer directions in the amplitude due to the weight and elasticity of the elastic body 5663 to be coated. At the same time, vibration energy is absorbed. Further, elasticity is also generated on the surface of the mobile phone 5601 which is in contact with air. As a result, the generation of air conduction sound from the housing surface of the mobile phone 5601 due to the vibration of the cartilage conduction vibration source 2525 is alleviated. Note that the cover of the housing surface of the mobile phone 5601 with the elastic body 5663 also functions as a protector for portions other than the elastic body portions 5663a and 5663b.

  FIG. 91 is a perspective view and a cross-sectional view related to Example 61 according to the embodiment of the present invention, and is configured as a mobile phone 5701. Since Example 61 is common to Example 55 shown in FIG. 83 except for the configuration for countermeasures against sound leakage due to air conduction sound, common portions are denoted by the same reference numerals and description thereof is omitted unless necessary. .

  In Example 61 of FIG. 91, both ends of the cartilage conduction vibration source 2525 are held by the hard material cartilage conduction parts 5124 and 5126 in the same manner as Example 55 shown in FIG. 83, and elastic bodies 5165b and 5165a are interposed. The mobile phone 5701 is supported by the housing. In this structure, as described in the embodiment 58 of FIG. 88, some vibration is transmitted to the casing of the mobile phone 5701, and sound leakage due to air conduction sound generated from the front and back surfaces thereof occurs. In Example 61 of FIG. 91, as a countermeasure against such sound leakage, pressing and fixing such as a screw metal plate for pressing and fixing the internal component 5748 of the mobile phone 5701 including the battery or the like to the inner surface of the casing of the mobile phone 5701 is performed. Structure 5701h. As a result, the weight of the internal structure 5748 including the battery and the like is integrated with the housing of the mobile phone 5701, and the vibration of a large area of the housing is suppressed in both the inside and outside directions with respect to the amplitude, thereby reducing the occurrence of air conduction sound.

  In Example 61 of FIG. 91, the surplus space in the casing of the mobile phone 5701 is further filled with a sound absorbing filler 5701i made of a nonwoven fabric or the like. As a result, the excess space in the casing of the mobile phone 5701 is subdivided to prevent the resonance of air in the casing and to reduce the generation of air conduction sound. In FIG. 91 (C), the internal structure 5748, the pressing and fixing structure 5701h, and the filling of the sound absorbing filler material 5701i are simplified for convenience of understanding, but these actually have a complicated structure. Further, the press fixing structure 5701h is not limited to the structure in which the internal configuration 5748 is pressed and fixed only on the back surface side of the mobile phone 5701 as shown in the figure. In order to subdivide the excess space in the housing of the mobile phone 5701, a partition wall may be provided inside the housing instead of filling the sound absorbing filler 5701i.

  The implementation of various features of the present invention shown in the above embodiments is not limited to the above embodiments. For example, in FIG. 88 to FIG. 90 described above, the thickness of the covering elastic body cross section and the casing cross section are approximately the same in the portions such as the back surface that occupy a large area of the outer surface of the mobile phone. . However, as long as the strength of the housing is maintained, the thickness of the cross section of the housing is made as thin as possible and the thickness of the cross section of the elastic body covering it is made as thick as possible, as if the housing is made of an elastic body. The sound leakage prevention effect may be further enhanced. At this time, a configuration in which a partition for surplus space subdivision is provided inside the housing is advantageous for maintaining strength and contributes to making the housing thinner.

  90, the elastic bodies 5663a and 5663b serving as the protectors, the holding parts at both ends of the cartilage conduction vibration source 2525 and the cartilage conduction part and the elastic body 5663 are continuous with the same material. The configuration is not limited to this. For example, the elastic body portions 5663a and 5663b and the elastic body 5663 may be separated parts and do not necessarily have to be in contact with each other. Further, the elastic body portions 5663a and 5663b and the elastic body 5663 may be made of different materials.

  Further, for simplification, in the embodiment 58 to the embodiment 60 shown in FIGS. 88 to 90, the structure of suppressing the vibration of the mobile phone casing with an external elastic body is shown. In the embodiment 61 of FIG. The structure which suppressed the vibration of a mobile telephone housing | casing by the press fixation of the weight of the internal structure of a mobile telephone was shown. However, these are not limited to the case of adopting them separately as in the embodiment, and both may be used together to suppress the vibration from inside and outside the mobile phone casing.

  FIG. 92 is a perspective view and a side view regarding Example 62 according to the embodiment of the present invention, and is configured as a fixed telephone 5800. As shown in the perspective view of FIG. 92A, the fixed telephone 5800 includes a telephone body 5801 and a cordless receiver 5881. A telephone body 5801 is provided with a display portion 5805, a videophone camera 5817, a videophone microphone 5823, a videophone speaker 5851, and the like.

  FIG. 92B shows a state where the handset 5881 of the fixed telephone 5800 is set up on the charger 5848. The cordless handset 5881 is the same as the cordless handset 5881 in FIG. As shown in FIG. 92B, the cordless handset or handset 5881 (hereinafter, represented by the cordless handset 5881) has a cartilage conduction portion 5824 having a gentle convex surface, and the cartilage conduction portion 5824 is cordless. When the handset 5881 is put on the ear, it naturally fits in the ear cavity with the ear canal at the bottom, and comes into contact with the ear cartilage over a wide area. The cordless handset or handset 5881 also has a transmitter 1423 similar to that shown in the mobile phone embodiment.

FIG. 92C illustrates the side surface of the cordless handset or handset 5881. When the cordless handset (or handset) 5881 is put on the ear 30, the cartilage conduction portion 5824 having a gently convex surface is formed in the ear canal mouth. It shows that it is in the dent of the ear with the bottom in contact with the ear cartilage in a wide area. As is apparent from the side view of FIG. 92C, in Example 62, the cartilage conduction portion 5824 has a shape that forms part of a spherical surface. The ear-corresponding part in a normal handset has a concave surface to form a closed space in front of the ear. However, the earphone with the cartilage conduction according to the present invention has a convex surface, and the ear has the ear canal at the bottom. It can be made into a natural shape that fits well into the depression.

FIG. 93 is a block diagram of the embodiment 62. The same parts as those in FIG. Also, since the configuration of the block diagram has many parts in common with the seventeenth embodiment of FIG. 29, the same numbers are assigned to the corresponding parts. The description of the same or common parts is omitted unless particularly necessary. Furthermore, for the parts that are not given the same numbers, for example, the videophone camera 5817 corresponds to the videophone inner camera 17 in the mobile phone 1601 of FIG. 29, and its function is basically the same. is there. Further, since the system of the embodiment 62 is a fixed telephone and is different from the system of the mobile phone, the basics as a telephone function are the same. The same applies to the power supply unit, and the same number is assigned since the basic functions are the same although the power supplies are different. In FIG. 93, charging contacts 1448a and 1548a for charging by placing a cordless handset (or handset) 5881 on the telephone body 5801 or the charger 5848 are shown.

FIG. 94 is a side sectional view of the cordless handset in Example 62 and its modification, and shows the relationship between the piezoelectric bimorph element that forms the cartilage conduction vibration source and the cartilage conduction portion that is a convex surface. FIG. 94 (A) shows a side sectional view of the cordless receiver 5881 of Example 62. A vibration conductor 5827 is fixed inside the cartilage conduction portion 5824, and the central portion of the piezoelectric bimorph element 2525d is attached to the vibration conductor 5827. I support it. Both ends of the piezoelectric bimorph element 2525d can vibrate freely, and the reaction is transmitted to the cartilage conduction portion 5824 through the vibration conductor 5827.

FIG. 94B is a side cross-sectional view of the cordless receiver 5881a according to the first modification of the embodiment 62. The cartilage conduction portion 5824 in the cordless handset 5881a of Example 62 is a part of a spherical surface, but the shape of the cartilage conduction portion 5824 in the first modification is an obtuse cone. The configuration in which the vibration conductor 5827a is fixed inside the cartilage conduction portion 5824a to support the central portion of the piezoelectric bimorph element 2525e is the same as that in the embodiment 62.

FIG. 94C is a side sectional view of a cordless receiver 5881b according to a second modification of the embodiment 62. The shape of the cartilage conduction portion 5824b in the cordless handset 5881b of the second modified example is an obtuse cone (cone) as in the first modified example. In the second modification in FIG. 94C, a vibration conductor 5827b is fixed inside the cartilage conduction portion 5824b to support one end of the piezoelectric bimorph element 2525f. The other end of the piezoelectric bimorph element 2525f can vibrate freely, and its reaction is transmitted to the cartilage conduction portion 5824b via the vibration conductor 5827b.

FIG. 94D is a side cross-sectional view of the cordless receiver 5881c in the third modification example of the embodiment 62. FIG. The shape of the cartilage conduction portion 5824c in the cordless handset 5881c of the third modified example is an obtuse cone (cone) like the first modified example and the second modified example. In the second modified example in FIG. 94D, the piezoelectric bimorph element 2525g in charge of the bass side and the piezoelectric bimorph element 2525f in charge of the treble side are directly attached to the inside of the cartilage conduction portion 5824c so that the vibration surface side is in contact therewith. . Thereby, the vibrations of the piezoelectric bimorph element 2525g and the piezoelectric bimorph element 2525f are directly transmitted to the cartilage conduction portion 5824c. Thus, the frequency characteristics of cartilage conduction can be improved by using a plurality of cartilage conduction vibration sources having different frequency characteristics in a complementary manner.

In each modified example of FIGS. 94 (B) to 94 (D), the convex cartilage conduction portion has a conical shape, but this configuration makes it possible regardless of individual differences in the size of the ear canal mouth. The side of the cone fits to the ear canal mouth, and cartilage conduction from the entire circumference of the ear canal mouth can be realized.

  FIG. 95 is a cross-sectional view regarding Example 63 according to the embodiment of the present invention, and is configured as a stereo headphone 5981. FIG. 93A is a cross-sectional view of the entire stereo headphone 5981, which includes a right ear cartilage conduction portion 5924 and a left ear cartilage conduction portion 5926. Each of the right ear cartilage conduction portion 5924 and the left ear cartilage conduction portion 5926 has a conical convex shape. The piezoelectric bimorph element 2525i and the piezoelectric bimorph element 2525j are attached to the inner side of the right ear cartilage conduction portion 5924 so that the vibration surfaces thereof are in contact with each other. This structure is basically the same as that of the third modification of the embodiment 62 in FIG. Similarly, the piezoelectric bimorph element 2525k and the piezoelectric bimorph element 2525m are attached to the inside of the left ear cartilage conduction portion 5926 so that the vibration surface side thereof is in contact therewith.

  95 (B) and 95 (C) show that the cartilage conduction portions 5924 and 5926 are conical convex surfaces, so that the cartilage conduction portion is connected to the ear canal mouth regardless of individual differences in the size of the ear canal mouth. It is for demonstrating that it can be made to fit, and has each expanded and shown the part of the cartilage conduction part 5924 for right ears in Example 63. FIG. 95 (B) shows a case where an individual with a relatively small ear canal opening 30a uses the stereo headphones 5981. The relatively distal end portion of the cone of the cartilage conduction portion 5924 is in contact with the entire circumference of the ear canal opening 30a. On the other hand, FIG. 95 (C) shows a case where an individual with a relatively large ear canal opening 30a uses the stereo headphone 5891, and the cone of the cartilage conduction portion 5924 penetrates deeper into the ear canal and a relatively basic portion of the cone. Is in contact with the entire circumference of the ear canal opening 30a. However, as is apparent from considering FIG. 95 (B) and FIG. 95 (C), the depth at which the cone of the cartilage conduction portion 5924 enters the ear canal mouth does not significantly affect the cartilage conduction. It can be seen that the conical shape ensures that the cartilage conduction portion always contacts the entire circumference of the ear canal mouth, regardless of individual differences in the size of the ear canal mouth.

  If the stereo audio output device is configured by using a pair of audio output devices having a cartilage conduction portion having a conical convex surface and a cartilage conduction vibration source for transmitting vibration to the cartilage conduction portion as in the embodiment 63, Since the cartilage conduction portion can be sandwiched from the left and right sides and pressed against the ear canal mouths of both ears, suitable contact between the conical cartilage conduction portion and the entire circumference of the ear canal mouth can be achieved.

  In Example 63, the cone of the cartilage conduction portion 5924 is configured with an obtuse angle as in the third modification of Example 62 in FIG. 94 (D), but this is configured with an acute angle if necessary. Is fine. In this case, the tip is rounded so that there is no danger. Further, in Example 63, two identical piezoelectric bimorph elements are attached to the cartilage conduction portions 5924 and 5926, respectively, but this is the frequency characteristic as in the third modification of Example 62 in FIG. 94 (D). It may be different. Further, one piezoelectric bimorph element may be provided for each of the cartilage conduction portions 5924 and 5926. In that case, in addition to direct pasting, it may be configured to instruct through the vibration conductor as in the embodiment 62 and its modification in FIGS. 94 (A) to 94 (C).

  The various features of the present invention described above are not limited to the above-described embodiments, and can be implemented by other embodiments. For example, in Example 62 and Example 63, as the cartilage conduction vibration source, it is also possible to adopt another vibration source such as an electromagnetic vibrator as shown in the other examples instead of the piezoelectric bimorph element. is there. In addition, although the embodiment 62 is configured as a landline telephone receiver and the embodiment 63 is configured as a headphone, the above-described features are not limited thereto. In other words, the various features relating to the convexity of the cartilage conduction vibration portion shown in the above embodiment can be configured as, for example, an earphone or a headset as shown in the other embodiments. The implementation of the present invention to the fixed telephone is not limited to the characteristics shown in the above-mentioned embodiment 62. Various characteristics of the mobile telephones and the like shown in the other embodiments as the embodiments are appropriately fixed. It can be implemented as a handset.

  FIG. 96 is a perspective view, a cross-sectional view, and a top view related to Example 64 according to the embodiment of the present invention, and is configured as a mobile phone 6001. The embodiment 64 is the same as the embodiment 55 shown in FIG. 83 except for the holding structure of the cartilage conduction vibration source 2525 (hereinafter referred to as the piezoelectric bimorph element 2525) constituted by a piezoelectric bimorph element, and is therefore the same as the common portion. Descriptions will be omitted unless necessary with numbers.

  In the embodiment 64 of FIG. 96, as in the embodiment 55 of FIG. 83, the main vibration direction of the piezoelectric bimorph element 2525 is perpendicular to the GUI display section 3405, but the holding structure is characterized. FIG. 96 (A) is a perspective view of the mobile phone of Example 64 as viewed from the front. The structure for holding the piezoelectric bimorph element 2525 includes a right ear cartilage conduction portion 6024, a left ear cartilage conduction portion 6026, and FIG. A connecting portion 6027 that connects them is integrally formed of a hard material. The piezoelectric bimorph element 2525 is supported inside the right ear cartilage conduction portion 6024, and the vibration can be transmitted directly to the right ear cartilage contacting the right ear cartilage conduction portion 6024. Further, the vibration of the piezoelectric bimorph element 2525 supported by the right ear cartilage conduction portion 6024 is also transmitted to the left ear cartilage conduction portion 6026 through the connecting portion 6027 serving as a vibration conductor, and thus the left ear cartilage conduction portion 6026. It is also possible to obtain cartilage conduction by contacting the left ear cartilage.

  Further, the above-described rigid integral molding structure is attached to the casing of the mobile phone 6001 via an elastic body 6065 such as ethylene resin or urethane resin, and the rigid integral molding structure is attached to the casing of the cellular phone 6001. There is no direct contact. Therefore, the elastic body 6065 functions as a vibration isolating material and a buffer material, and the vibration of the piezoelectric bimorph element 2525 is alleviated from being transmitted to the casing of the mobile phone 6001. As a result, it is possible to prevent an adjacent person from hearing the incoming call sound due to the air conduction sound generated by the vibration of the casing of the mobile phone 6001, thereby causing inconvenience and leakage of privacy. Since the elastic body 6065 transmits vibration for cartilage conduction, good cartilage conduction can be obtained even when the front side of the corner of the elastic body is applied to the ear cartilage.

  FIG. 96B is an upper cross-sectional view of the mobile phone 6001 in a B1-B1 cross section (a cross section in a state where the mobile phone 6001 is cut from the center) in FIG. FIG. 96 (B) shows the state of the upper central section, and cantilever support is performed with the side where the terminal 2525b of the piezoelectric bimorph element 2525 is provided inside the right ear cartilage conduction portion 6024 in the integrally molded structure. You can see what is being done. Although illustration of the detailed structure is omitted, the inner side of the right ear cartilage conduction portion 6024 retains the piezoelectric bimorph element 2525 by securing the terminal 2525b, its connection space, and the connection line extraction groove.

  On the other hand, as is apparent from FIG. 96B, the other end 2525c of the piezoelectric bimorph element 2525 is a free vibration end, and an inertia weight (inertial weight) 6025 is attached. The inertia weight 6025 is for increasing the weight of the other end 2525c, thereby suppressing the movement of the other end 2525c by inertia and increasing the vibration energy taken out from the holding end side by the vibration of the piezoelectric bimorph element 2525 as the reaction. is there. In other words, with the inertia weight 6025 side as a fulcrum, the holding end side of the piezoelectric bimorph element 2525 increases the component that vibrates together with the hard integrally formed structure.

  As is clear from FIG. 96B, the thickness of the connecting portion 6027 is thinner than the right ear cartilage conduction portion 6024 and the left ear cartilage conduction portion 6026, and bypasses the internal components of the mobile phone 6001. Then, the right ear cartilage conduction portion 6024 and the left ear cartilage conduction portion 6026 are connected in the form of a balance rod. As a result, it is possible to lay out the inner camera 6017 and the like that are preferably arranged on the top of the mobile phone 6001. Thus, the thickness of the connecting portion 6027 may be sufficient to rigidly fix the positional relationship between the right ear cartilage conduction portion 6024 and the left ear cartilage conduction portion 6026, and the connection structure other than that shown in FIG. Is also possible. Further, since the cross-sectional area of the connecting portion 6027 viewed from the functional aspect as a vibration conductor is relatively small and sufficient, the connecting portion 6027 also has a large degree of freedom in relation to the component arrangement inside the mobile phone 6001 from this point. .

  FIG. 96C is an external view of the mobile phone 6001 as viewed from above, and an integrally molded structure including a right ear cartilage conduction portion 6024, a left ear cartilage conduction portion 6026, and a connecting portion 6027 connecting them is exposed. ing. Further, both sides of the elastic body 6065 are exposed so as to be sandwiched between them. In FIG. 96C, the interrelationship between the internal piezoelectric bimorph element 2525, the inertia weight 6025, the inner camera 6017, the right ear cartilage conduction portion 6024, the connection portion 6027, and the left ear cartilage conduction portion 6026 is indicated by a broken line. Is shown.

  FIG. 96D is a cross-sectional side view of the mobile phone 6001 along the B2-B2 cross section in FIGS. Also in the sectional side view, the right ear cartilage conduction portion 6024 is attached to the case of the mobile phone 6001 via the elastic body 6065 as a vibration isolator and a cushioning material so that the right ear cartilage conduction portion 6024 does not directly contact the case of the mobile phone 6001. You can see that it is installed.

  FIG. 97 is a perspective view, a cross-sectional view, and a top view related to Example 65 according to the embodiment of the present invention, and is configured as a mobile phone 6101. Example 65 is the same as Example 64 of FIG. 96 except that the shape of the right ear cartilage conduction portion 6124, the left ear cartilage conduction portion 6126, and the connecting portion 6127 and the shape of the elastic body 6165 are different. Different parts will be described, and common parts will be denoted by the same reference numerals, and description thereof will be omitted unless necessary.

  As is apparent from the perspective view of FIG. 97A, in Example 65, the right ear cartilage conduction portion 6124, the left ear cartilage conduction portion 6126, and the connecting portion 6127 connecting them cover the upper portion of the mobile phone 6101. It is integrally molded with a hard material. Along with this, the elastic body 6165 is interposed at a position sandwiched from above and below by this integrally molded structure and the casing of the mobile phone 6101 so that they are not in direct contact with each other.

  FIG. 97B is an upper cross-sectional view of the mobile phone 6001 along the B1-B1 cross section in FIG. Since the B1-B1 cross section is a cross section of the mobile phone 6001 cut from the center, there is no fundamental difference from the embodiment 64 of FIG. 96B. Alternatively, the cross section when translated so as to approach the back side is different from that of the embodiment 64 of FIG. 96, as is apparent from FIG. 97 (A). 97B, in Example 65, the piezoelectric bimorph element 2525 is cantilevered inside the right ear cartilage conduction portion 6124 with the end portion 2525c on the side where no terminal is provided as the holding end. Has been. On the other hand, the end of the piezoelectric bimorph element 2525 where the terminal 2525b is provided is a free vibration end, and an inertia weight 6125 is attached thereto. Although illustration of the detailed structure is omitted, the inside of the inertia weight 6125 is attached to the piezoelectric bimorph element 2525 while securing the terminal 2525b, its connection space, and the connection line takeout groove. The selection of the holding end and the inertia weight attachment end is not unique to the embodiment 65, and the attachment method of the embodiment 65 may be adopted in the embodiment 64, and vice versa.

  As is clear from FIG. 97 (B), also in Example 65, the thickness of the connecting portion 6127 is thinner than the cartilage conduction portion 6124 for the right ear and the cartilage conduction portion 6126 for the left ear. The right ear cartilage conduction portion 6124 and the left ear cartilage conduction portion 6126 are connected to each other in the form of a balance rod, bypassing the parts. In Example 65, the width of the connecting portion 6127 is wide so as to cover the entire upper surface, and the thickness of the connecting portion 6127 can be further reduced in terms of strength. Furthermore, depending on the design, it is possible to increase the strength by configuring the connecting portion 6127 to wrap around not only the upper surface but also the front side and the back side, and the thickness of the connecting portion 6127 can be further reduced.

  FIG. 97 (C) is an external view of the cellular phone 6101 as viewed from the top, and only the integrally molded structure including the right ear cartilage conduction portion 6024, the left ear cartilage conduction portion 6026, and the connecting portion 6027 connecting them can be seen. ing. 97C, the interrelationship between the internal piezoelectric bimorph element 2525, the inertia weight 6125 and the inner camera 6117, the right ear cartilage conduction portion 6124, the connection portion 6127, and the left ear cartilage conduction portion 6126 is also shown. Is indicated by a broken line.

  FIG. 97D is a cross-sectional side view of the mobile phone 6101 along the B2-B2 cross section in FIGS. 97A to 97C. Also in the side sectional view of Example 97, the mobile phone 6101 is interposed via the elastic body 6165 as a vibration isolator and a buffer so that the right ear cartilage conduction portion 6124 does not directly contact the housing of the mobile phone 6101. It can be seen that it is attached to the housing.

  FIG. 98 is a perspective view, a cross-sectional view, and a top view related to Example 66 according to the embodiment of the present invention, and is configured as a mobile phone 6201. Example 66 is similar to Example 64 of FIG. 96 or FIG. 97 except that the shape of the right ear cartilage conduction part 6224, the left ear cartilage conduction part 6226, and the connection part 6227 and the shape of the elastic body 6265 associated therewith are different. Since it is common to Example 65, different parts will be mainly described, and the common parts are denoted by the same reference numerals, and description thereof will be omitted unless necessary.

  As is apparent from the perspective view of FIG. 98 (A), in Example 66, the right ear cartilage conduction portion 6224 and the left ear cartilage conduction portion 6226 are exposed to the outside. It is connected and cannot be seen from the outside. Along with this, the elastic body 6265 is also only visible from the outside only in the part that isolates the right ear cartilage conduction portion 6224 and the left ear cartilage conduction portion 6226 from the housing of the mobile phone 6201. The cartilage conduction part and the housing are not in direct contact. Therefore, as far as the appearance is concerned, the embodiment 66 can be said to be common to the embodiment 55 of FIG. However, its internal structure is different as described below.

  FIG. 98B is an upper cross-sectional view of the cellular phone 6201 in the B1-B1 cross section in FIG. 98A. As is clear from FIG. 98 (B), in Example 66, the right ear cartilage conduction portion 6224 and the left ear cartilage conduction portion 6226 are connected to each other inside the casing by a connecting portion 6227. Note that the connecting portion 6227 does not touch the inside of the housing. As in Example 98, the function of transmitting the vibration of the right ear cartilage conduction portion 6224 that supports the piezoelectric bimorph element 2525 to the left ear cartilage conduction portion 6226, and the right ear cartilage conduction portion 6224 and the left ear cartilage conduction portion 6224 The function of rigidly integrating the conductive portion 6226 can also be achieved by the connecting portion 6227 inside the housing.

  FIG. 98 (C) is an external view of the mobile phone 6201 as viewed from above, and a right ear cartilage conduction portion 6224 and a left ear cartilage conduction portion 6226 and vibrations thereof are provided at both corners of the upper portion of the mobile phone. The elastic body 6265 which cuts off from is visible. In FIG. 98C as well, the interrelationship between the internal piezoelectric bimorph element 2525, the inertia weight 6225, the inner camera 6217, and the connecting portion 6227 is indicated by a broken line.

  FIG. 98D is an upper side cross-sectional view of the cellular phone 6201 in the B2-B2 cross section in FIGS. 98A to 98C. The side sectional view of the example 98 is not fundamentally different from the example 65 of FIG. 97B, but is a cross section when the B2-B2 cross section is translated from the side surface of the mobile phone 6201 to the center side. As is clear from FIG. 98A, this is different from the embodiment 64 of FIG.

  In Examples 64 to 66 in FIGS. 96 to 98 described above, the main vibration direction of the piezoelectric bimorph element 2525 has been described as the direction orthogonal to the GUI display unit 3405. However, the direction in which the piezoelectric bimorph element is held in these embodiments is not limited to this, and the main vibration direction of the piezoelectric bimorph element 2525 is set to be parallel to the GUI display unit 3405 (up and down direction of the mobile phone). May be. The setting of the main vibration direction of these piezoelectric bimorph elements is as already described in detail in Example 56 of FIG. 86 in relation to Example 55 of FIG.

  99 is a perspective view and a cross-sectional view related to Example 67 according to the embodiment of the present invention, and is configured as a mobile phone 6301. FIG. Example 67 applies the structure of Example 66 of FIG. 98 in which the right ear cartilage conduction part and the left ear cartilage conduction part are rigidly connected to each other at the connection part to Example 55 of FIG. Since the other points are common, common portions are denoted by the same reference numerals as those in the embodiment 55 of FIG. 83, and the description thereof is omitted unless necessary.

  As shown in FIG. 99 (B), in Example 67, the right-ear cartilage conduction portion 6324 and the left-ear cartilage conduction portion 6326 are rigidly and integrally connected to the inside of the housing by the connecting portion 6327. ing. Further, the connecting portion 6327 does not touch the inside of the housing. In this respect, it can be said that the embodiment 67 is common to the embodiment 66 of FIG. However, from a functional point of view, in Example 67 of FIG. 99, the vibration of the piezoelectric bimorph 2525 is directly transmitted to the right ear cartilage conduction portion 6324 and the left ear cartilage conduction portion 6326, and only in that sense is the connection. The vibration transmission path by the part 6327 is redundant.

  However, even when it is not necessary to transmit vibration between the right-ear cartilage conduction portion 6324 and the left-ear cartilage conduction portion 6326 as in the embodiment 67, the integration of the two by the connecting portion 6327 is not necessary. There is great significance in stabilizing the attachment to the body. More specifically, generally, in order to suppress vibration transmission from the right ear cartilage conduction portion 6324 and the left ear cartilage conduction portion 6326 to the housing, the elastic body 6365 between them is softened or thickened. On the other hand, the holding of the right ear cartilage conduction portion 6324 and the left ear cartilage conduction portion 6326 to the housing becomes unstable. On the other hand, when the right ear cartilage conduction portion 6324 and the left ear cartilage conduction portion 6326 are rigidly connected by the connection portion 6327 as in the embodiment 67, the mutual position of both is maintained, and the elastic body 6365 is softened. Even if the thickness is increased, both can be attached to the housing more stably.

  FIG. 100 is a cross-sectional view regarding Example 68 according to the embodiment of the present invention, which is configured as a mobile phone 6401. In Example 68, the structure of Example 65 in FIG. 97 in which the right-ear cartilage conduction portion and the left-ear cartilage conduction portion are rigidly connected to each other at the connection portion is applied to Example 52 in FIG. 77. Since the points are common, the common parts are denoted by the same reference numerals as those in the embodiment 52 of FIG.

  100, the right ear cartilage conduction portion 6424, the left ear cartilage conduction portion 6426, and the connecting portion 6427 connecting them cover the upper portion of the mobile phone 6401 in the same manner as the embodiment 65 of FIG. It is integrally molded with a hard material. Further, the elastic body 6465 is interposed at a position sandwiched from above and below by this integrally molded structure and the casing of the mobile phone 6401 so that they are not in direct contact with each other. The right ear piezoelectric bimorph element 2525q is attached to the right ear cartilage conduction portion 6424, and the left ear piezoelectric bimorph element 2525p is attached to the left ear cartilage conduction portion 6426 so that one side of the element is supported by a cantilever structure. ing. In the same manner as in Example 77, the right ear piezoelectric bimorph element 2525q and the left ear piezoelectric bimorph element 2525p can be controlled independently of each other.

  Also in the embodiment 68 of FIG. 100, as in the embodiment 67 of FIG. 99, the first significance of the connecting portion 6427 is that the right ear cartilage conduction portion 6424 and the left ear cartilage conduction portion 6326 are rigidly connected to each other. The mutual position is maintained, and even if the elastic body 6465 is softened or thickened, both can be attached to the housing more stably.

  In Example 68 of FIG. 100, the vibration of the piezoelectric bimorph element 2525p for the left ear is further transmitted in the direction of the cartilage conduction part 6424 for the right ear via the connecting portion 6427, and the vibration of the piezoelectric bimorph element 2525q for the right ear is transmitted. Is transmitted in the direction of the left ear cartilage conduction portion 6426. Thus, in Example 68, in the integrally molded structure of the right ear cartilage conduction portion 6424, the left ear cartilage conduction portion 6426 and the connecting portion 6427 connecting them, the vibration of the left ear piezoelectric bimorph element 2525p The vibrations of the right ear piezoelectric bimorph element 2525q are mixed. As a result, when vibrations having mutually inverted waveforms are generated in the left-ear piezoelectric bimorph element 2525p and the right-ear piezoelectric bimorph element 2525q, the mutual vibrations cancel each other out in the integrally molded structure, and the cellular phone 6401 is removed from the entire integrally molded structure. Generation of air conduction sound based on vibrations transmitted to the casing of the housing is suppressed. Even in such a state, when one of the right ear cartilage conduction portion 6424 and the left ear cartilage conduction portion 6426 is brought into contact with the ear cartilage, the right ear piezoelectric bimorph element 2525q or the left ear Since the vibration of the ear piezoelectric bimorph element 2525p is larger than the vibration passing through the connecting portion 6427, the difference is favorably conducted to the ear cartilage.

  The various features shown in the above embodiments are not limited to the implementations according to the respective embodiments, and can be implemented in other various embodiments. For example, if the embodiment 68 shown in FIG. 100 is modified to omit the right-ear piezoelectric bimorph element 2525q, the embodiment according to the embodiment 65 shown in FIG. 97 can be implemented. In other words, the vibration of the piezoelectric bimorph element 2525p supported by the left ear cartilage conduction portion 6426 is also transmitted to the right ear cartilage conduction portion 6424 through the connection portion 6427, and thus the right ear cartilage conduction portion that does not hold the piezoelectric bimorph element. Even when 6424 is brought into contact with the right ear cartilage, good cartilage conduction can be obtained. As seen in this modification, the holding of the cartilage conduction vibration source that transmits the vibration through the connecting portion is not limited to the holding of the piezoelectric bimorph element 2525 in the horizontal direction as in the embodiment 65 of FIG. It is also possible to hold the piezoelectric bimorph element 2525p in the longitudinal direction as in the modification of 100th embodiment 68. These are only examples, and the cartilage conduction vibration source can be arranged and held in various other shapes and orientations according to various component layouts inside the mobile phone.

FIG. 101 is a system configuration diagram and a usage explanatory diagram of Example 69 according to the embodiment of the present invention. As shown in FIG. 101 (A), the embodiment 69 is configured as a mobile phone system including a normal mobile phone 1601 and an ultra-small mobile phone 6501 having a cartilage conduction portion 6524, and the Bluetooth (registered trademark) between the two. ) Etc., short-range communication is possible by radio waves 6585 of the communication system. The cellular phone system according to the 69th embodiment is often in common with the 16th embodiment shown in FIGS. 27 and 28 and the 17th embodiment shown in the block diagram of FIG. Therefore, the description of the embodiment 69 will be made based on the block diagram of FIG. 27 for the external appearance and the block diagram of FIG. 29 for the internal configuration, and the same reference numerals will be given to the common parts and the description will be omitted unless necessary.

  The embodiment 69 of FIG. 101 differs from the embodiments 16 and 17 in that the cartilage conduction output portion capable of short-range communication with a normal mobile phone 1601 can function independently as described above. The small mobile phone 6501 is configured. The ultra-small mobile phone 6501 can perform a normal mobile phone call operation using the operation unit 6509 and the display unit 6505, but has a feature in its transmitter and receiver. First, as for the receiving part, a cartilage conduction part 6524 is provided at the upper corner of the mobile phone, and the piezoelectric bimorph element 2525 is cantilevered in the vertical direction inside. In this sense, the configuration of the ultra-small mobile phone 6501 of the embodiment 69 is common to the embodiment 43 of FIG. On the other hand, for the transmitter, a contact-type bone-conduction microphone 6523 is provided in the vicinity of the corner at the lower part of the mobile phone. The ultra-small mobile phone 6501 uses the cartilage conduction portion 6524 in contact with the ear cartilage such as the tragus and the bone conduction microphone 6523 is applied to the cheekbone or the mandible.

  FIG. 101 (B) shows a state in which the display unit 6505 faces the cheek in the manner shown in FIG. The state that is applied to is shown. In FIG. 101 (B), the cartilage conduction portion 6524 and the bone conduction microphone 6523 are shown in order to show the vertical positional relationship. However, when used as shown in FIG. So it is actually not visible from the front.

  On the other hand, FIG. 101 (C) shows a state in which the display unit 6505 faces the front in the manner shown in FIG. A state where the microphone 6523 is applied to the cheekbone is shown. Since the micro cellular phone 6501 of Example 69 is small, as described above, the micro cellular phone 6501 can be used in the direction in which it can be easily held in either form of FIG. 101 (B) or FIG. 101 (C). Note that when used in the manner illustrated in FIG. 101C, the cheeks can be prevented from coming into contact with the display surface and being stained by taking care not to grip the display surface 6505 with a finger. Note that the bone conduction microphone 6523 can be applied to the upper part of the mandible while the cartilage conduction portion 6524 is in contact with the ear cartilage such as the tragus when the angle at which the ultra-small mobile phone 6501 is applied to the face is changed.

  Since the normal mobile phone 1601 and the micro cellular phone 6501 have different telephone numbers, they can be used independently of each other. The cooperation of will be described. The normal mobile phone 1601 is often stored in a bag in the standby state due to its size, but the ultra-small mobile phone 6501 can be easily put in a shirt pocket or the like and always held in the bag. be able to.

  The first of the cooperation between the two is to use the ultra-small mobile phone 6501 as the incoming vibrator of the normal mobile phone 1601 in the possessed state as described above. That is, when an incoming call is received by the normal mobile phone 1601, it is transmitted to the micro mobile phone 6501 by the radio wave 6585 of the short-range wireless system, and the incoming vibrator of the micro mobile phone 6501 is activated, so that the normal mobile phone Even if the phone 1601 is in a bag or the like, it can be surely noticed of an incoming call. As described later, in Example 69, a dedicated incoming vibrator using an eccentric motor or the like is adopted as the incoming vibrator of the micro cellular phone 6501. However, as shown in Example 13, the cartilage conduction vibration unit is also used. It is also possible to vibrate as an incoming vibrator.

  The second of the cooperation between the two is to use the ultra-small mobile phone 6501 as the handset of the normal mobile phone 1601 in the possessed state as described above. That is, when an incoming call is received by the normal cellular phone 1601, the radio wave 6585 of the short-distance wireless system is transmitted to the micro cellular phone 6501, and after receiving operation in the micro cellular phone 6501, the cartilage conduction portion 6524 is received. The telephone call is made by the bone conduction microphone 6523. As a result, a call using the advantage of cartilage conduction can be made on a normal mobile phone 1601. Needless to say, the normal cellular phone 1601 may be kept in a bag or the like at this time.

  The third of the cooperation between the two is to use the ultra-small mobile phone 6501 as a receiver during a videophone call using the normal mobile phone 1601. When making a videophone call, the normal mobile phone 1601 is called away from the face, so the microphone is far from the mouth and the other party's voice is also output from the speaker. There are many obstacles. On the other hand, if an ultra-small mobile phone 6501 is used as a handset, it is possible to make a call using the advantages of cartilage conduction in a video phone call using a normal mobile phone 1601. Details of the above cooperation will be described later.

  FIG. 102 is a block diagram of the embodiment 69, and the same portions as those in FIG. As described above, the block diagram of FIG. 102 has many parts in common with the block diagram of FIG. In particular, the normal cellular phone 1601 has the same configuration in FIGS. However, a part of the configuration is omitted in FIG. For convenience of explanation, a normal mobile phone 1601 that is arranged and shown in the information in FIG. 29 is shown below in FIG.

  When an incoming call is received by the normal mobile phone 1601, the fact is transmitted to the short-range communication unit 6546 by the radio wave 6585 from the short-range communication unit 1446, and the control unit 6539 displays a preset normal mobile phone incoming call notification pattern. The incoming vibrator 6525 is vibrated. In addition, the control unit 6539 displays an incoming call to the normal mobile phone 1601 on the display unit 6505.

  When receiving operation is performed by the operation unit 6509, the fact is transmitted to the short-range communication unit 1446 by the radio wave 6585 from the short-range communication unit 6546, and the control unit 239 of the normal mobile phone 1601 starts a call by the telephone function unit 45. To do. As a result, the reception sound signal is transmitted from the reception processing unit 212 of the normal mobile phone 1601 to the short-range communication unit 6546 of the ultra-small mobile phone 6501 through the short-range communication unit 1446. In response to this, the reception processing unit 6501 of the micro cellular phone 6501 vibrates the cartilage conduction unit 6524. On the other hand, the transmission sound picked up by the bone-conduction microphone 6523 is transmitted from the transmission processing unit 6522 of the ultra-small mobile phone 6501 to the short-range communication unit 1446 of the normal mobile phone 1601 through the short-range communication unit 6546. In response to this, the normal mobile phone 1601 transmits a transmission sound signal via the telephone communication unit 47.

On the other hand, when an incoming call of micro cellular phone 6501 is received, control unit 6539 vibrates incoming vibrator 6525 with a preset micro cellular phone call notification pattern. In addition, the control unit 6539 displays an incoming call to the micro cellular phone 6501 on the display unit 6505.

When receiving operation is performed by the operation unit 6509, the control unit 6539 starts a call by the telephone function unit 6545. Thus, the reception processing unit 6512 vibrates the cartilage conduction unit 6524 according to the reception signal received by the telephone communication unit. On the other hand, the transmission processing unit 6522 transmits a transmission sound signal via the telephone communication unit 6547 on the basis of the transmission sound picked up by the bone-conduction microphone 6523.

As described above, any incoming call can be identified by changing and setting the vibration pattern of incoming vibrator 6525. In addition, as described above, display unit 6505 displays which incoming call. For any incoming call, reception can be started by the same operation of the operation unit 6509 as described above. Note that the control unit 6539 operates according to a program stored in the storage unit 6537 in the same manner as in other embodiments. The storage unit 6537 can also temporarily store data necessary for control by the control unit 6539 and can also store various measurement data and images. The power supply unit 6548 supplies necessary power to each unit of the micro cellular phone 6501.

  FIG. 103 is a perspective view of Example 70 according to the embodiment of the present invention, which is configured as a mobile phone 6601. Since the mobile phone 6601 of the embodiment 70 is common in common with the mobile phone system of the embodiment 69 in FIGS. 101 and 102, the same reference numerals are given to the common parts and the description is omitted unless necessary.

  103 is different from the embodiment 69 in that the cartilage conduction output portion capable of short-range communication is not configured as a mobile phone capable of functioning independently, but is separated as a part of the mobile phone 6601. It is a point configured as a possible transmission / reception unit. In this sense, the configuration of the embodiment 70 is the same as that of the embodiment 13 in FIG. This will be specifically described below with reference to FIG.

  As shown in FIG. 103A, the mobile phone 6601 includes a mobile phone lower portion 6601a and a mobile phone upper portion 6601b, which are separable. Note that the mobile phone lower portion 6601a and the mobile phone upper portion 6601b are coupled and separated using appropriate known means such as a hook-and-loop fastener or a fitting structure. In the mobile phone upper portion 6601b, a cartilage conduction portion 6626 is provided at the corner of the upper portion of the mobile phone as in the other embodiments, and the piezoelectric bimorph element 2525 is cantilevered in the horizontal and vertical directions. This structure is the same as that of the embodiment 42 in FIG. On the other hand, for the transmitter, a contact-type bone-conduction microphone 6523 is provided near the other corner of the upper part of the mobile phone. The upper operation unit 6609 is for performing a reception operation when the mobile phone upper part 6601b is separated. When the mobile phone upper part 6609b is coupled to the mobile phone lower part 6601a as shown in FIG. It has been disabled.

  The mobile phone 6601 is normally used in a state where the mobile phone lower portion 6601a and the mobile phone upper portion 6601b are coupled as shown in FIG. At this time, the vibration of the piezoelectric bimorph element 2525 and the normal microphone 223 are enabled, and the bone-conduction microphone 6523 and the normal earphone 213 are disabled. The use in this state is common to the other mobile phone embodiments.

  The cellular phone 6601 of the embodiment 70 can be used by further separating the cellular phone upper part 6601b from the cellular phone lower part 6601a as shown in FIG. 103 (B). At this time, in the cellular phone upper portion 6601b, the operation of the bone conduction microphone 6523 and the upper operation portion 6609 is validated together with the vibration of the piezoelectric bimorph element 2525. In addition, the normal earphone 213 is also activated together with the normal microphone 223 in the mobile phone lower portion 6601a. It should be noted that switching between enabling and disabling in the bone conduction microphone 6523, the normal earphone 213, and the upper operation unit 6609 is performed by separating or connecting the mobile phone lower portion 6601a and the mobile phone upper portion 6601b as described later. It is done automatically by judging whether or not. Thus, in the state of FIG. 103B, the mobile phone lower portion 6601a functions as an independent normal mobile phone, and the mobile phone upper portion 6601b functions as a wireless transmission / reception unit for the mobile phone lower portion 6601a. .

  The use in the state of FIG. 103B as described above can be understood in accordance with the embodiment 69 of FIG. That is, the separated mobile phone upper portion 6601b functions as an incoming vibrator for the mobile phone lower portion 6601a in the same manner as the ultra-small mobile phone of the embodiment 69, and secondly, the mobile phone lower portion 6601a functions as a bag or the like. It enables a cartilage conduction call with the phone put on, and thirdly enables a cartilage conduction call on a videophone in which the mobile phone lower part 6601a is separated from the face. In the case of a cartilage conduction call, the cartilage conduction portion 6626 is brought into contact with an ear cartilage such as a tragus, and the bone conduction microphone 6523 is used against the cheekbone or the mandible in the same manner as the ultra-small mobile phone of Example 69. To do.

  As shown in FIG. 103 (B), the mobile phone upper portion 6601b is provided with a clip 6601c for being sandwiched between mouths of clothes pockets and the like. When the clip 6601c is coupled to the mobile phone lower portion 6601a, the clip 6601c is housed in the housing recess 6601 and cannot be seen from the outside as shown in FIG. The mobile phone upper part 6601b is further provided with a pair of charging contacts 6648a, which are in contact with the sub-charging contact 1448b of the mobile phone lower part 6601a in the coupled state. This is because when the mobile phone lower portion 6601a is charged in the coupled state in FIG. 103A, the mobile phone upper portion 6601b is charged together through the contact between the sub charge contact 1448b and the charge contact 6648a. Further, the contact and non-contact of the sub charging contact 1448b and the charging contact 6648a are used for the determination of the connection and separation between the mobile phone lower part 6601a and the mobile phone upper part 6601b, and the bone conduction microphone 6523, the normal earphone 213 and the upper part are used. The operation unit 6609 automatically switches between validation and invalidation.

  FIG. 104 is a block diagram of the embodiment 70. The same parts as those in FIG. In FIG. 104, since there are many parts in common with the block diagram of the embodiment 69 in FIG. 102, the corresponding parts are denoted by the same reference numerals and description thereof is omitted.

  104 is different from the ultra-small mobile phone 6501 in FIG. 102 in that the power source 6648 is charged from the charging contact 6648a. The second point is that an upper operation unit 6609 is provided, and the reception operation at the time of separation is transmitted to the control unit 6639 as described above. Note that the control unit 6639 determines whether it is in a contact state or a non-contact state based on the state of the charging contact 6648a. Not accepted as invalid. The third point is that the mobile phone upper part 6601b does not have a telephone function part that functions independently, and is replaced with a transmission / reception part 6645 for the mobile phone upper part 6601b. The fourth point is that the control unit 6639 invalidates the bone conduction microphone 6523 of the transmission / reception unit 6645 when the charging contact 6648a is determined to be in the contact state as described above.

  104 is different from the normal mobile phone 1601 in FIG. 102 in that when the power supply unit 1448 is charged from an external charger via the main charging contact 1448a, a part of the power supply unit 1448 is sub charging contact. It is configured so that it can be supplied to the charging contact 6648a of the mobile phone upper part 6601b via 1448b. The second point is that the control unit 239 invalidates the normal earphone 213 of the telephone function unit 45 in a state where it is determined that the sub charging contact 1448b is in a contact state.

  105 is a perspective view and a cross-sectional view of Example 71 according to the embodiment of the present invention, and is configured as a mobile phone 6701. FIG. Since the cellular phone 6701 of the embodiment 71 is common in common with the cellular phone 6601 of the embodiment 70 in FIG. 103 and FIG.

  The main difference between the embodiment 71 and the embodiment 70 in FIG. 105 is that the mobile phone can be separated into the upper part and the lower part, and the cartilage conduction part provided in the upper part in a state where both are connected. The structure makes it difficult for vibration to be transmitted to the lower part. This will be specifically described with reference to FIG.

  As shown in FIG. 105 (A), the cellular phone 6701 of Example 71 is composed of a cellular phone lower part 6701a and a cellular phone upper part 6701b as in Example 70, and both can be separated. In the mobile phone upper portion 6701b, a hard left ear cartilage conduction portion 6726 is provided at the left corner of the mobile phone upper portion, and the piezoelectric bimorph element 2525 is cantilevered in the horizontal and vertical directions therein. Further, the mobile phone upper portion 6701b is provided with a hard right ear cartilage conduction portion 6724 at the right corner of the mobile phone upper portion. The left ear cartilage conduction portion 6726 and the right ear cartilage conduction portion 6724 are integrally connected by a hard joint portion of the same material, and the vibration of the piezoelectric bimorph element 2525 received by the left ear cartilage conduction portion 6726 is received by the right ear. It is also transmitted to the cartilage conduction portion 6724 for use. In this sense, the embodiment 71 is common to the embodiments 64 to 67 in FIGS. 96 to 99. Although not shown in FIG. 105 in order to avoid complications, the connecting portions 6027, 6127, 6227 and FIGS. 96 to 99 shown in FIGS. The structure in 6327 or a similar structure can be employed as appropriate. Note that the cellular phone upper portion 6701b of Example 71 is not provided with a bone-conduction microphone.

  In Example 71, the elastic body 6765 is fixed to the upper end of the mobile phone lower portion 6701a as shown in FIG. I have to. The meaning of the elastic body 6765 is the same as that of the elastic body connecting portions 6065, 6165, 6265, and 6365 in the embodiment 64 to the embodiment 67 of FIGS. In the case of Example 71, it is possible to configure a hook-and-loop fastener by taking advantage of the elasticity of one side of the coupling portion and utilizing the elasticity. For example, as shown in the partial cross-sectional view of FIG. 105 (B), a plurality of hook-shaped protrusions 6701c are provided on the coupling surface on the mobile phone upper portion 6701b side, and small holes 6765a are formed at corresponding positions on the opposing elastic body 6765 side. A plurality of are provided. The diameter of the hole 6765a is set to be smaller than the head portion of the hook-shaped protrusion 6701c and larger than the root portion. With such a configuration, the mobile phone upper portion 6701b and the elastic body 6765 can be coupled by fitting the hook-shaped protrusion 6701c into the holes 6765a against the elasticity of the elastic body 6765, respectively. Note that the hook-and-loop fastener structure shown in FIG. 105B can also be used in principle for fixing the elastic body 6765 and the mobile phone lower portion 6701a. However, in this case, the head of the hook-like projection to be provided on the upper surface of the lower part 6701a of the mobile phone is not a smooth spherical shape like 105 (B), for example, it is a sharp triangular pyramid, and once it bites into the hole of the elastic body, it cannot be removed. The so-called “fitting kill” structure.

  FIG. 105C illustrates a state where the mobile phone upper portion 6701b is separated from the mobile phone lower portion 6701a. As is apparent from the figure, the sub charging contact 1448 b is provided on the surface of the elastic body 6765. Note that in FIG. 105C, illustration of the hook-shaped protrusion 6701c and the hole 6765a illustrated in FIG. 105B is omitted to avoid complication. In Example 71, when the mobile phone upper part 6701b is separated, the reception is performed by bringing either the right ear cartilage conduction part 6724 or the left ear cartilage conduction part 6726 into contact with the ear cartilage. As in the combined state of (A), the normal microphone 223 of the mobile phone lower part 6701a is used. When making a videophone call, the normal microphone 223 is used in the videophone mode. Note that the ear cartilage conduction portion 6724 and the left ear cartilage conduction portion 6726 are neither for the right ear nor for the left ear, and can be arbitrarily brought into contact with the ear cartilage. Further, instead of either one of the cartilage conduction parts, both may be utilized and used in contact with two parts of the ear cartilage.

  FIG. 106 is a block diagram of the embodiment 71, and the same parts as those in FIG. The block diagram of FIG. 106 has many parts in common with the block diagram of the embodiment 70 in FIG. 104, so corresponding parts are denoted by the same reference numerals and description thereof is omitted. FIG. 106 differs from FIG. 104 in that the transmission processing unit and the bone conduction microphone are omitted.

  Various features shown in each embodiment of the present invention are not necessarily unique to each embodiment, and the features of each embodiment can be appropriately modified and utilized as long as the advantages can be utilized. Can be used in combination. For example, the bone-conduction microphone shown in Example 69 to Example 71 may be a normal microphone that picks up air conduction sound. In Example 70, the bone-conduction microphone may be omitted as in Example 71. Conversely, it is possible to employ a bone-conduction microphone in Example 71. At this time, it is preferable to arrange a bone-conduction microphone in the center of the mobile phone upper portion 6701 sandwiched between the right cartilage conduction portion 6724 and the left cartilage conduction portion 6726. In this case, since the cartilage conduction part and the bone conduction microphone are close to each other, the bone conduction microphone is applied to the bone behind the ear, and the cartilage conduction part is as shown in Example 20 of FIG. 33 and Example 24 of FIG. It is also possible to use it on the back side.

  In addition, the cartilage conduction part in Example 69 to Example 71 is configured by using a piezoelectric bimorph element as a cartilage conduction vibration source. However, the present invention is not limited to this, and an electromagnetic transducer as shown in other examples is used for cartilage conduction. You may employ | adopt as a vibration source. In Example 70, the cartilage conduction vibration source is supported on one of the corners on the upper part of the mobile phone and the bone conduction microphone is disposed on the other side. When the cartilage conduction vibration source is provided, it is preferable that the bone conduction microphone is disposed at the center of the upper part of the mobile phone sandwiched between the pair of cartilage conduction vibration sources.

  Further, the charging means from the lower part of the mobile phone to the upper part of the mobile phone in the embodiment 70 or the embodiment 71 is not limited to the electric contact as shown in the embodiment, but for example, by the electromagnetic induction type non-contact charging. It may be configured.

  In Example 71, the elastic body 6765 is fixed to the lower side of the mobile phone and the upper part of the mobile phone is detachable from the elastic body 6765. However, the embodiment is not limited to such an implementation. For example, contrary to the embodiment 71, the elastic body 6765 can be fixed to the upper part of the mobile phone, and the lower part of the mobile phone can be attached to and detached from the elastic body 6765.

  FIG. 107 is a block diagram relating to Example 72 according to the embodiment of the present invention, and is configured as a mobile phone 6801. In Example 72, in the same manner as Example 57 in FIG. 87, the drive circuit of the piezoelectric bimorph element 5325 serving as the cartilage conduction vibration source is combined with a power management circuit for supplying power to each part of the cellular phone 6801, and integrated power of one chip. The management IC 5303 is configured. The block diagram of FIG. 107 has much in common with the block diagram of FIG. 87, so the same parts are denoted by the same reference numerals and description thereof is omitted. The cell phone 6801 of Example 72 is not separable from the cartilage conduction part as in Example 70 and Example 71. For example, as in Example 65 of FIG. 97, the cartilage conduction parts 6124 and 6126 are provided. It is fixed to the mobile phone body, and holds a cartilage conduction vibration source 2525 such as a piezoelectric bimorph. Therefore, the cartilage conduction portion is separated from the ear during a videophone call, and air conduction sound is emitted from the videophone speaker 5351 instead.

  The embodiment 72 shown in FIG. 107 differs from the embodiment 57 shown in FIG. Specifically, the charge pump circuit 5354 is connected to the power management unit 5353 via the switch circuit 5354a, and power supply is controlled by turning on and off the switch circuit 5354a by the control unit 5321. That is, power supply to the charge pump circuit 5354 is started by turning on the switch circuit 5354a in response to an incoming signal or a call signal, and by turning off the switch circuit 5354a in response to a call disconnecting operation. Stopped. In conjunction with the switching circuit 5354a being turned off, the pair of phase inversion clocks (3) supplied from the control unit 5321 to the charge pump is also stopped.

  Note that when the charge pump circuit 5354 is turned on and off, the voltage is not transiently stabilized, and a pop sound is generated from the piezoelectric bimorph element 5325 due to this. In order to prevent this, a mute circuit 5340a is inserted between the amplifier 5340 and the piezoelectric bimorph element 5325. Under the control of the control unit 5321, the mute circuit 5340a is turned on for a predetermined time before the charge pump circuit 5354 is turned on / off, so that the voltage fluctuation of the amplifier 5340 is not transmitted to the piezoelectric bimorph element 5325. The mute circuit 5340a is kept on for a time slightly longer than the time required for the charge pump circuit 5354 to be stable, and is turned off and the mute is removed at the timing when the voltage is sufficiently stable. By such on / off of the mute circuit 5340a, generation of a pop sound when the charge pump circuit 5354 is turned off is prevented, and the charge pump circuit 5354 enters a power supply state without a pop sound, and the piezoelectric bimorph element 5325 can be driven. Become.

  FIG. 108 is a timing chart illustrating power supply control to the charge pump circuit 5354 according to the 72nd embodiment. FIG. 108A is a timing chart when an incoming call is received. First, the mute circuit 5340a is turned on at a timing t1 when an incoming call is received from the standby state. In this way, at the timing t2 when the piezoelectric bimorph 5325 is not affected by the voltage fluctuation of the amplifier 5340, the switch circuit 5354a is turned on, and power supply from the power management circuit 5353 to the charge pump circuit 5354 is started. The supply of the clock (3) from the control unit is also started. As conceptually shown by the hatched portion in FIG. 108A, the output voltage of the charge pump circuit 5354 is not stable in the transition period from the rising to the predetermined voltage. The mute circuit 5340a is turned on in a time zone that sufficiently covers this transition period, and the mute state is continued. The mute circuit 5340a is turned off at a timing t3 at which sufficient voltage stability is expected. As a result, the piezoelectric bimorph element 5325 is in a ready state in which a cartilage conduction call can be made whenever a receiving operation is performed. The reason why such an operation is performed when an incoming signal is received is to ensure that the piezoelectric bimorph element 5325 is in a driving state at the start of a call, assuming that the receiving operation is performed very quickly.

  Next, when a reception operation is performed at an arbitrary timing t4, a call is started. When a call blocking operation is performed at timing t5, the mute circuit 5340a is first turned on in response thereto. At a timing t6 when the piezoelectric bimorph 5325 is not affected by the voltage fluctuation of the amplifier 5340, the switch circuit 5354a is turned off, power supply from the power management circuit 5353 to the charge pump circuit 5354 is cut off, and the control unit The supply of the clock (3) from is also stopped. As conceptually indicated by the hatched portion in FIG. 108A, the output voltage of the charge pump circuit is not stable even in the transition period when the function is stopped. The mute circuit 5340a is kept on in a time zone that sufficiently covers this transition period, and is turned off at a timing t7 at which stable stop is expected. As a result, even when the charge pump circuit 5354 is turned off, generation of pop sound or the like from the piezoelectric bimorph element 5325 is prevented.

  FIG. 108 (A) is a timing chart for making a phone call. At t1, a destination entry operation is started by selecting phone book data or by manual input. At this point, the power supply to the charge pump is suspended because it is not known whether a call will be made to the implementation. When the destination input operation is completed and a call operation is performed at an arbitrary time point t2, the mute circuit 5340a is first turned on in response thereto. Similarly to FIG. 108A, the switch circuit 5354a is turned on at the timing t3 when the piezoelectric bimorph 5325 is not affected by the voltage fluctuation of the amplifier 5340, and the power management circuit 5353 to the charge pump circuit 5354. Power supply to the power supply is started, and supply of the clock (3) from the control unit is also started. The mute circuit 5340a is turned off at the timing t4 at which sufficient voltage stability is expected, as in FIG. Then, when the other party performs a receiving operation in response to the outgoing call, the call is started at timing t5. Since the time from the call origination to the receiving operation by the other party is sufficiently long, if the start-up process of the charge pump circuit 5354 is entered in response to the call origination operation, as shown in FIG. In addition, it is expected that the piezoelectric bimorph element 5325 is in a driving state. Even if the other party does not perform the receiving operation even if the piezoelectric bimorph 5325 is driven by the calling operation, the call is not started. However, if the other party starts the receiving operation after starting the receiving operation, it may not be in time. The piezoelectric bimorph 5325 is set in the driving state without waiting for the establishment of the call.

  Next, when a call blocking operation is performed at timing t6, the mute circuit 5340a is first turned on in response to this, as in FIG. At a timing t7 when the piezoelectric bimorph 5325 is not affected by the voltage fluctuation of the amplifier 5340, the switch circuit 5354a is turned off, power supply from the power management circuit 5353 to the charge pump circuit 5354 is cut off, and the control unit The supply of the clock (3) from is also stopped. Mute circuit 5340a continues to be turned on in a time zone that sufficiently covers the transition period when the function of the charge pump circuit is stopped, and is turned off at timing t8 at which a stable stop request is expected, as in FIG. As a result, as in the case of FIG. 108 (A), even when the charge pump circuit 5354 is turned off, the occurrence of pop noises from the piezoelectric bimorph element 5325 is prevented. Even if the call operation is performed as described above, the other party may not perform the reception operation. In this case, the blocking operation is performed without establishing the call. In this case, it is understood that there is no call state from t5 to t6 illustrated between the call operation t2 and the blocking operation t6 as shown in FIG.

  FIG. 109 is a flowchart of the operation of the application processor 5339 in the embodiment 72 shown in FIG. 107 and FIG. Note that the flow in FIG. 109 mainly illustrates related functions in order to explain the function of power supply control to the charge pump circuit 5354. Therefore, in the embodiment 72, there are operations of the application processor 5339 that are not shown in the flow of FIG. 109, such as functions of a general mobile phone. The flow in FIG. 109 starts when the main power source of the cellular phone 72 is turned on, and in step S302, the initial startup and the function check of each unit are performed, and the screen display on the display unit is started. Next, in step S304, the power supply to the charge pump circuit 5354 is turned off and the process proceeds to step S306. As described above, the mobile phone according to the embodiment 72 first starts up with the power supply to the charge pump circuit 5354 turned off.

  In step S306, it is checked whether there is an incoming call. If it is not a videophone, the process proceeds to step S310 to instruct the mute circuit 5340a to start mute for a predetermined time. Next, the process proceeds to step S312 to instruct the charge pump circuit 5354 to be turned on, and the process proceeds to step S314. Note that steps S310 and S312 have been described as functions of the application processor 5339 for the sake of understanding, but in actuality, the sequence control of the mute and power supply on to the charge pump circuit for the predetermined time is controlled by the integrated power management IC 5303. The configuration is made up to the unit 5321. In this case, in step S310, the application processor 5339 simply instructs the control unit 5321 to turn on the charge pump circuit, and the process proceeds to step S314.

  In step S314, it is checked whether or not a reception operation has been performed. If no operation is detected, the process returns to step S306, and steps S306 to S312 are repeated as long as an incoming call continues. In this case, if the mute for a predetermined time and the power-on to the charge pump circuit have been instructed, steps S310 and S312 are omitted. On the other hand, when a reception operation is detected in step S314, the process proceeds to call processing in step S328.

  On the other hand, if no incoming call is detected in step S304, the process proceeds to step S316. If an incoming videophone call is detected in step S308, the flow advances to step S318 to perform videophone processing, and the flow advances to step S316. The videophone process in step S318 corresponds to the process from the start of the videophone call to the call and its disconnection. Therefore, the process moves from step S318 to step S316 when the videophone is disconnected. The videophone process includes a process of generating the voice of the other party during the call from the air conduction speaker. As described above, when a videophone is detected, the piezoelectric bimorph element is used away from the ear cartilage, so that power is not supplied to the charge pump circuit from the beginning.

  In step S316, it is checked whether or not a destination input operation has been performed. If there is an input operation, the flow proceeds to step S320 to check whether or not a call operation has been performed. If there is a calling operation, the process proceeds to step S322, and it is checked whether or not a videophone call is made. If it is not a videophone, the process proceeds to step S324 to instruct the mute circuit 5340a to start mute for a predetermined time. Next, the process proceeds to step S326, where the charge pump circuit 5354 is instructed to be turned on, and the process proceeds to step S328. In the same manner as steps S310 and S312, the sequence control related to steps S324 and S326 is configured to be left to the control unit 5321 of the integrated power management IC 5303.

  On the other hand, when destination input is not detected in step S316, or when call operation is not detected in step S320, the process proceeds to step S336. If an incoming videophone call is detected in step S322, the flow advances to step S338 to perform videophone processing, and the flow advances to step S336. In the case of the videophone process in step S338, the process corresponds to a process of waiting for the other party's reception operation and a process from the start of a videophone call based on the reception operation to a call and blocking thereof. Therefore, the process proceeds from step S338 to step S336 when the videophone call is blocked or when the call is blocked without the other party's receiving operation. In the videophone process in step S338, as in step S318, the voice of the other party during the call is generated from the air conduction speaker, and power supply to the charge pump circuit is not performed from the beginning.

  In step S328, call processing based on the reception operation in step S314 or the call operation in step S320 is performed. More specifically, the call processing in step S328 means a function during a call if it goes through step S314, and includes management for shifting to step S330 every predetermined time and checking for a blocking operation. In this way, steps S328 and S330 are repeated unless there is a shut-off operation in step S330. On the other hand, when the call operation is made in step S320, it means a function of waiting for the other party's reception operation and a function during a call after the reception operation. Also in this case, the process proceeds to step S330 every predetermined time to check whether or not there is a blocking operation. At this time, when the blocking operation is detected in step S330 without the reception process being performed by the other party, as a result, only the function of waiting for the other party's reception operation is performed in step S328.

  When a shut-off operation is detected in step S330, the process proceeds to step S334, and the mute circuit 5340a instructs to start mute for a predetermined time. Next, the process proceeds to step S334, instructing the charge pump circuit 5354 to be turned off, and the process proceeds to step S336. It should be noted that, similarly to step S310 and step S312, etc., the sequence control related to step S332 and step S334 is configured to be left to the control unit 5321 of the integrated power management IC 5303.

  In step S336, it is checked whether or not the main power source is turned off. If no off state is detected, the process returns to step S306, and step S338 is repeated until the main power source is detected. If the main power supply is detected to be off, the flow ends.

  Various features shown in each embodiment of the present invention are not necessarily unique to each embodiment, and the features of each embodiment can be appropriately modified and utilized as long as the advantages can be utilized. Can be used in combination. For example, Example 72 employs a charge pump circuit as a booster circuit for driving a piezoelectric bimorph element, and this is a preferred choice, but the present invention is not limited to this, and other booster circuits are appropriately employed. It does not prevent it.

  110 is a perspective view regarding Example 73 according to the embodiment of the present invention, and is configured as a mobile phone 6901. FIG. The embodiment 73 is similar in appearance to the embodiment 55 shown in FIG. 83, and has the same internal configuration and function as the embodiment 4 shown in FIGS. The same reference numerals as those in the embodiments are attached to the portions to be described, and the description thereof is omitted.

  110 differs from Example 55 or Example 4 as shown in FIG. 110A, which is a perspective view seen from the front, and the video camera inner camera 6917 is near the lower right corner of the mobile phone. It is arranged in. In Example 73, the upper part of the mobile phone 6901 has no room for space because of the arrangement of the cartilage conduction parts 5124 and 5126 and the internal cartilage conduction vibration source for transmitting vibrations thereto. For this reason, in Example 73, the videophone inner camera 6917 is arranged near the lower right corner of the mobile phone 6901 opposite to the cartilage conduction parts 5124 and 5126 with the display screen 6905 interposed therebetween.

  Further, in the embodiment 73, a display lamp 6965 made up of an LED or the like for notifying the arrival of an incoming call or e-mail by light is provided. Then, the display lamp 6965 blinks irregularly during the videophone so that the line of sight faces the videophone inner camera 6917. As a result, the line of sight of the face displayed on the display unit of the other party's videophone comes to face the front. This point will be further described later. 110B is a rear perspective view of the mobile phone 6901 and shows the arrangement of the rear main camera 6955. FIG.

Example 73 A mobile phone 6901 is used by holding it horizontally so that the long side of the display screen 6905 is horizontal as shown in FIG. The video camera inner camera 6917 is arranged in the vicinity of the lower right corner of the mobile phone 6901 as seen in FIG. 110 (A), so when it is held sideways as shown in FIG. 110 (C), it comes to the upper right corner. As a result, the video camera inner camera 6917 images the face of the user during the video call from the upper right at a natural angle. In addition, the video phone inner camera 6917 is arranged such that the direction perpendicular to the long side of the display screen 6905 is the vertical direction of the captured image, as shown in FIG. The display screen 6905 displays the other party's face when the other party also has a horizontal videophone specification. The user's face is also displayed in the same manner as FIG. 110C on the display screen of the other party's mobile phone in a sideways state. With respect to the images held vertically and horizontally, the holding posture is detected by detecting the gravitational acceleration by the normal acceleration sensor 49, and the orientation of the image is automatically rotated by 90 degrees. Therefore, the image rotation function by the acceleration sensor 49 as described above is stopped in the videophone mode. When the other party's mobile phone is not in landscape orientation, his / her face is displayed on the display unit of the other party's mobile phone as a vertically long image with the left and right sides of the screen cut off. In addition, when the other party's mobile phone is not in the horizontal specification, the long side direction of the display screen is the vertical direction of the image, so that the other party's face is displayed sideways as it is. Accordingly, as will be described later, an image from a mobile phone that is not in a landscape orientation is automatically displayed on the display screen 6905 in a state of being rotated 90 degrees. At this time, the face of the other party is displayed in the center as a vertically long image, so the left and right sides of the display screen 6905 are empty spaces where nothing is displayed. This free space can be used for data display. The user's voice in the videophone is picked up by the microphone 6923, and the other party's voice is output from the speaker 6951.

At this time, as described above, the display lamp 6965 blinks irregularly (for example, a set of several blinks in about 0.5 seconds per time is turned on irregularly several sets per minute). . Normally, a videophone call is made by looking at the face of the other party on the display screen 6905, which means that the line of sight is not facing the videophone inner camera 6917. Accordingly, the line of sight does not look at the other party's screen. On the other hand, when the line of sight moves toward the display lamp 6965 due to the irregular blinking, the line of sight is directed to the nearby videophone inner camera 6917, and the line of sight looks toward the other party on the other party's screen. An effect can be obtained.

FIG. 110D shows a state in which the display screen 6905 is divided, the face of the other party is displayed on the right screen 6905a, and the image captured by the rear main camera 6955 is displayed on the left screen 6905b. The image displayed on the monitor is transmitted to the other party together with his / her face captured by the videophone inner camera 6917. In this way, you can have a videophone conversation by sending your face and the scenery you are viewing to the other party.

FIG. 111 is a perspective view showing various videophone modes in the embodiment 73 as described above. FIG. 111 (A) is the same as FIG. 110 (D), and the other party's face is displayed on the right screen 6905a. In this mode, the rear main camera 6955 displayed on the monitor on the left screen 6905b is transmitted to the other party.

In contrast, FIG. 111B shows a mode in which the other party's face is displayed on the right screen 6905a and an image transmitted from the other party is displayed on the left screen 6905b. The modes of FIG. 111 (A) and FIG. 111 (B) are switched by operating the mobile phone to each other by agreement with the other party during the call. In addition, the image transmitted / received can be a still image as well as a moving image. Also, when the amount of image data to be transmitted / received is large, image transmission is performed in a time-sharing manner so that the image data of each other's face is stopped while transmitting / receiving images from the rear main camera.

As will be described later, the image quality deteriorates when transmitting his / her face and the scenery he / she sees, but the image of the rear main camera 6955 and the image of the videophone inner camera 6917 may be combined and transmitted. Is possible. In this case, it is possible to transmit the user's face and the scenery he / she sees to a mobile phone that does not support transmission / reception of images on two screens.

FIG. 111C shows a state in which an image of a landscape or the like transmitted by the other party is displayed on the right screen 6905a and an image of the rear main camera 6955 to be sent to the other party is displayed on the left screen 6905b. In this case, it is possible to make a videophone call while exchanging the scenery that each other is looking at.

FIG. 112 is a flowchart showing the videophone process in the embodiment 73, which can be understood as the details of the videophone process in step S36 of the embodiment 4 shown in FIG. When the videophone process starts, an advice display indicating that the mobile phone 6901 is used sideways is displayed on the display screen 6905 in step S342. Although this display is continued for a while, the flow immediately proceeds to step S346 in parallel with this, and the speaker 6901 is turned on. In step S348, an advice announcement that the mobile phone 6901 is held sideways is used. In parallel with the start of the announcement, the flow immediately proceeds to step S349, and the automatic image rotation function based on the attitude of the mobile phone 6901 detected by the acceleration sensor is stopped. In step S350, it is checked whether the other party's mobile phone is compatible with the horizontal position. If it is not horizontally supported, the process proceeds to step S352, where the display of the received image is rotated 90 degrees so that the face of the opponent can be seen upright, and the process proceeds to step S354. If it is a horizontally supported model, the process immediately proceeds to step S354.

In step S354, the video camera inner camera 6917 is turned on, and in step S356, the microphone 6923 is turned on. In step S358, it is checked whether or not the “two-camera mode” in which both the videophone inner camera 6917 and the rear main camera 6955 are used. The mode can be set manually in advance, and can be changed during a videophone call. If it is not “2 camera mode”, the rear main camera 6955 is turned off in step S360. If it is originally off, do nothing in this step. Next, the display screen 6905 is set to full screen display, and image transmission / reception processing is performed in step S364. This processing is the same as that of a normal videophone, but processing for a unit time of treatment is performed.

When the process of step S364 ends, the process proceeds to step S368, and it is checked whether it is time to turn on the display lamp 6965 randomly based on a simple random number process or the like. If the lighting time has come, in step S370, the user is instructed to turn on one set of LEDs for instructing the user's attention and guiding the line of sight to the videophone inner camera, and the process proceeds to step S372. If the lighting time has come, the process immediately proceeds to step S372. On the other hand, if it is detected in step S358 that the “two camera mode” is selected, the process proceeds to step S374, the rear main camera 6599 is turned on, and the process proceeds to the “two camera mode” process in step S376. Migrate to Details of the “2-camera mode” processing in step S376 will be described later. In step S372, it is checked whether a videophone call blocking operation has been performed. If there is no operation, the process returns to step S358. Thereafter, step S358 to step S376 are repeated until a blocking operation is performed. It is possible to cope with the mode change in this repetition. On the other hand, when the shut-off operation is detected in step S372, the flow is ended, and the process proceeds to step S38 in FIG.

FIG. 113 shows details of the “2-camera mode” processing in step S376 of FIG. When the flow starts, in step S382, it is checked whether or not the composite moving image mode is selected. If applicable, the process proceeds to step S382, and the images of the videophone inner camera 6917 and the rear main camera 6955 are combined. To do. Further, in step S388, full screen display is instructed, and in step S390, the composite image received is instructed, and the process proceeds to step S404. On the other hand, if the composite moving image mode is not detected in step S382, the process proceeds to step S392.

In step S392, a two-screen display is instructed, and in step S394, an image transmission of the videophone inner camera 6917 is instructed. In step S396, an instruction to display the received partner's face image on the right display screen 6905a is given, and the process proceeds to step S398. In step S398, it is checked whether or not the mode is the mode for transmitting the image of the rear main camera 6955. Instruct. Then, control goes to a step S404.

On the other hand, if it is confirmed in step S398 that the mode is not the mode for transmitting the image of the rear main camera 6955, it means that the mode is the mode for receiving the other party's image. An instruction to display the image on the left display screen 6905b is given, and the process proceeds to step S404. In step S404, it is checked whether it is time to turn on the display lamp 6965 randomly. If the lighting time has arrived, the process immediately proceeds to step S408. The gist is the same as in steps S368 and S370 in FIG.

In step S408, it is checked whether or not the videophone telephone end change has been performed in the “2-camera mode”. If there is no operation, the process returns to step S382. Thereafter, steps S382 to S408 are repeated until a hunting operation is performed. It is possible to cope with the mode change in this repetition. On the other hand, when the end operation is detected in step S408, the flow ends, and the process proceeds to step S372 in FIG.

  The implementation of the present invention is not limited to the above-described embodiments, and various advantages of the present invention can be enjoyed in other embodiments. Furthermore, these features can be utilized by being replaced or combined in various embodiments. For example, the flowcharts shown in FIG. 112 and FIG. 113 can also be adopted for the videophone processing in step S318 and step S338 of the embodiment 72 shown in FIG.

  Note that the conventional videophone inner camera is arranged such that the direction parallel to the long side of the rectangular display screen 6905 is the vertical direction of the captured image, whereas the videophone inner camera in Example 73 above. As shown in FIG. 110C, 6917 is arranged so that the direction perpendicular to the long side of the display screen 6905 is the vertical direction of the captured image. In order to avoid the confusion of display image rotation based on this situation, in Example 73, when a videophone is set, the automatic rotation function of the display image based on the acceleration sensor 49 is stopped in step S349 of FIG. In step S350 and step S352, when the normal mobile phone is the other party's videophone, the display image is rotated 90 degrees. However, the confusion prevention measure based on the arrangement in which the direction perpendicular to the long side of the display screen 6905 is the vertical direction of the captured image in the videophone inner camera 6917 is not limited to this. For example, the automatic rotation function of the display image based on the acceleration sensor 49 is utilized, and the orientation of the display image by the automatic rotation function is set to 90 based on the presence / absence of information indicating that the vertical direction of the inner camera for videophone is shifted by 90 degrees from the normal direction. It may be configured to correct the degree. Further, the video camera inner camera 6917 is arranged so that the direction parallel to the long side of the rectangular display screen 6905 is the vertical direction of the picked-up image in the same manner as in the past. You may comprise so that it may always rotate 90 degree | times with a rotation function.

  Further, when the vibration source of the cartilage conduction portion 5124 is configured with a piezoelectric bimorph element in the embodiment 73, it can function as an impact sensor as described in the embodiment 4, so that the main camera image transmission mode during the videophone can be used. The reception mode can be switched by detecting the impact of tapping the cartilage conduction portion 5124 with an index finger or the like holding the mobile phone 6901 sideways. Furthermore, in Example 13 and Example 17, the cartilage conduction part functions as an incoming vibrator. Similarly, the cartilage conduction part 5124 or 5126 of Example 73 can also be used as a vibrating part for notification. It is. For example, a predetermined vibration can be transmitted to the cartilage conduction portion 5124 or 5126 every minute so that the time elapse of the videophone can be transmitted to the hand holding the mobile phone 6901 sideways.

  FIG. 114 is a block diagram relating to Example 74 according to the embodiment of the present invention, and is configured as a cartilage conduction vibration source device for a mobile phone. Example 74 is based on the actual measurement data of the mobile phone examined in FIGS. 79 and 80 and the structure of the ear, and the frequency characteristic correction unit (cartilage conduction equalizer 5038 and This is based on the study of the cartilage conduction low-pass filter 5040). In terms of configuration, functions corresponding to the analog front end unit 5336, the cartilage conduction acoustic processing unit 5338, the charge pump circuit 5354, and the amplifier 5340 of the integrated power management IC 5303 in the example 57 of FIG. 87 or the example 72 of FIG. About. Therefore, since the details of the significance of the configuration can be understood with reference to these descriptions, a duplicate description is omitted.

  Example 74 in FIG. 114 provides a cartilage conduction vibration source device that can be controlled by an application processor 7039 and a power management circuit 7053 in a normal mobile phone. Specifically, a piezoelectric bimorph as a cartilage conduction vibration source is provided. An element 7013 (shown together with a capacitor as an equivalent circuit) and its driver circuit 7003 are configured. The driver circuit 7003 is basically a drive amplifier for the piezoelectric bimorph element 7013, but has a built-in acoustic processing circuit serving as a frequency characteristic correction unit, and connects an audio output from a normal application processor. It is possible to drive the piezoelectric bimorph element 7013 with a suitable frequency characteristic as a cartilage conduction vibration source.

  More specifically, an analog audio signal output differentially from the speaker analog output unit of the application processor 7039 is input to the analog input amplifier 7036 and output from the analog output amplifiers 7040a and 7040b via the analog acoustic processing circuit 7038. The piezoelectric bimorph element 7013 is driven differentially. Since the driver circuit 7003 includes a booster circuit 7054 (specifically, a charge pump circuit) for the analog output amplifiers 7040a and 7040b, the output voltage of the normal power management circuit 7053 (2.7 to 5.5V) can be driven by inputting a power supply voltage from the power supply input portion 7054a.

  The analog sound processing circuit 7038 has functions similar to those of the cartilage conduction equalizer 5038 and the cartilage conduction low-pass filter 5040 in the embodiment 54 of FIG. 82, and also functions as an activation sequence circuit that automatically reduces click sounds and pop sounds. Further, the correction of frequency characteristics by the cartilage conduction equalizer 5038 and the cartilage conduction low-pass filter 5040 can be set in a uniform manner, or can be custom set or adjusted according to the ear age or the like.

  FIG. 115 is a block diagram relating to Example 75 according to the embodiment of the present invention. The embodiment 75 is configured as a cartilage conduction vibration source device for a mobile phone in the same manner as the embodiment 74, and since there are many common parts, the same components are denoted by the same reference numerals and description thereof is omitted. 114 differs from the embodiment 74 in FIG. 114 in that the digital acoustic processing circuit 7138 is employed in the driver circuit 7103.

  However, the input and output of the driver circuit 7103 are analog as in the embodiment 74, and the input analog signal is converted into a digital signal by the DA conversion circuit 7138a and input to the digital acoustic processing circuit 7138, and the digital acoustic processing circuit. The digital output of 7138 is converted into an analog signal by the DA conversion circuit 7138b and transmitted to the analog output amplifiers 7040a and 7040b. Note that the input to the driver circuit 7103 is not differential, and an analog audio signal from the analog output 7039b of the application processor 7039 is input. Whether or not the input is performed by operation is not a matter specific to each of Embodiments 74 and 75, and may be appropriately configured depending on the circumstances of connection with the application processor 7039.

  FIG. 116 is a block diagram relating to Example 76 according to the embodiment of the present invention. The embodiment 76 is configured as a cartilage conduction vibration source device for a mobile phone in the same manner as the embodiments 74 and 75, and since there are many common parts, the same components are denoted by the same reference numerals and description thereof is omitted. . 116 differs from the embodiment 74 or 75 in that the digital audio signal from the digital output unit (I2S) 7039c of the application processor 7039 is input to the driver circuit 7203. FIG. Then, the digital audio signal from the application processor 7039 is directly input to the digital sound processing circuit 7138 similar to that of the embodiment 75 through the input unit 7236.

  The digital output from the digital acoustic processing circuit 7138 is converted into an analog signal by the DA conversion circuit 7138c and transmitted to the analog output amplifier 7240a, and is inverted by the analog output amplifier 7240b to drive the piezoelectric bimorph element 7013 differentially. To do. Whether the analog output of the DA converter circuit 7138c is inverted by the analog output amplifier 7240b as in the embodiment 76, or two analog signals inverted by the DA converter circuit 7138b itself are output as in the embodiment 75. Appropriate configurations can be selected instead of items specific to 75 and 76, respectively.

  FIG. 117 is a block diagram relating to Example 77 according to the embodiment of the present invention. The embodiment 77 is configured as a cartilage conduction vibration source device for a mobile phone in the same manner as the embodiments 74 to 76, and since there are many common parts, the same components are denoted by the same reference numerals and description thereof is omitted. . 117 differs from the embodiments 74 to 76 in that the driver circuit 7303 is configured as all-digital. Therefore, the digital audio signal from the digital output unit (I2S) 7039c of the application processor 7039 is directly input to the digital sound processing circuit 7138 at the input unit 7236, and the digital output from the digital sound processing circuit 7138 is a class D output amplifier 7340a. And 7340b.

  The vibration source module 7313 is provided in combination with a driver circuit 7303 that outputs a digital drive signal as in the embodiment 77, and is a low-pass for the differential PWM signal output from the class D output amplifiers 7340a and 7340b. A piezoelectric bimorph element module including a filter (specifically, a coil for smoothing a PWM signal) 7313a is configured. As a result, even when the all-digital driver circuit 7303 is adopted, it is provided in combination with the vibration source module 7313, so that a normal mobile phone can be used without burdening externally with a smoothing coil or the like having suitable characteristics. A cartilage conduction vibration source device that can be controlled by an application processor 7039 and a power management circuit 7053 in a telephone can be provided.

  In Example 44 in FIG. 67, the piezoelectric bimorph element and the circuit are resin packaged and integrated as a vibration unit and then held, but the coil 7313a in Example 77 in FIG. In Example 44, it can be considered as the simplest example of a circuit integrated with a piezoelectric bimorph element by resin packaging. Therefore, for the vibration source module 7313 of Example 77, the shape and holding structure studied in Example 44 of FIG. 67 can be employed.

  As described above, in Examples 74 to 77, even without knowledge and information on cartilage conduction, the application processor 7039 and power in a normal mobile phone can be used without the burden of adjustment and examination for realizing good cartilage conduction. A cartilage conduction vibration source device that can be controlled by the management circuit 7053 can be provided. Note that the specific configuration for this is not limited to the embodiments 74 to 77, and the combination of circuit components can be appropriately changed as long as the advantages can be enjoyed. Further, the present invention is not only configured as a single driver circuit as in the embodiments 74 to 77, but also on a large scale like the integrated power management IC 5303 in the embodiment 57 of FIG. 87 or the embodiment 72 of FIG. You may comprise as a part of a circuit.

  118 is a cross-sectional view relating to Example 78 according to the embodiment of the present invention, and is configured as a mobile phone 7401. FIG. 118A is a front cross-sectional view of the mobile phone 7401, and FIG. 118B is a side cross-sectional view of the mobile phone 7401 in the BB cross section of FIG. 118A. As shown in FIG. 118 (A), the structure of the cartilage conduction parts 7424 and 7426 and the connection part 7427 in Example 78 and the piezoelectric bimorph element 2525 that transmits vibration to the cartilage conduction part 7424 as a cartilage conduction vibration source is provided. The cantilever holding structure is the same as that of the embodiment 65 shown in FIG. 97 (B). Therefore, explanation of the significance of these structures is omitted to avoid duplication. 118 is similar to the embodiment 61 of FIG. 91 in that the cellular phone can suppress a slight sound leak due to the vibration of the cartilage vibration conduction source 2525 being transmitted to the casing of the cellular phone 7401. 7401 is that the weight inside 7401 is used. Details of other internal configurations of the cellular phone 7401 are the same as those of the embodiments described so far (for example, the embodiment 54 of FIG. 82, the embodiment 72 of FIG. 107, etc.). Omitted.

  Hereinafter, the sound leakage suppression structure in the embodiment 78 of FIG. 118 will be described. 97, the cartilage conduction parts 7424 and 7426 and the connection part 7427 are integrally formed of a hard material. This hard material is a material having an acoustic impedance different from that of the casing of the mobile phone 7401. In addition, an elastic body 7465 serving as a vibration isolator is interposed between the integrally molded structure of the cartilage conduction parts 7424 and 7426 and the connection part 7427 and the casing of the mobile phone 7401 so that they are not in direct contact with each other. Has been. With these structures, acoustic isolation between the integrally formed structure of the cartilage conduction portions 7424 and 7426 and the connection portion 7427 and the housing of the mobile phone 7401 is achieved. Although the above structure is common to the embodiments described so far, it is the basis of the sound leakage suppressing structure of the embodiment 78, and the significance thereof is summarized again.

  The battery 7448 is held by hard battery holders 7406 and 7416 at the top and bottom. Note that the central portion of the battery 7448 avoids suppression by a hard holder in order to allow swelling with the passage of time of use. The upper holder 7406 is provided with a plurality of pins 7408 for connecting the upper holder 7406 to the front surface and the back surface of the mobile phone 7401 with small cross-sectional areas. On the other hand, a plurality of elastic bodies 7467 for holding the lower holder 7416 at a position separated from the plurality of pins 7408 on the front surface and the back surface of the mobile phone 7401 in a vibration isolation state are provided.

  Accordingly, as shown in FIG. 118B, when the battery 7448 is attached to the battery holders 7406 and 7416 and stored in the front housing 7401a (GUI display portion 7405 side), and the back housing 7401b is closed, a plurality of Pins 7408 are sandwiched between and pressed against the front case 7401a and the back case 7401b, respectively, and the weight of the battery 7448 is connected to the vicinity of the cartilage conduction portion 7424 in the case of the mobile phone 7401 via the upper holder 7406. The small cross-sectional area connection by the pin 7408 has a significance of specifying and concentrating the weight connection position in the vicinity of the cartilage conduction portion 7424 in the casing of the mobile phone 7401. By this weight connection, vibration of the casing of the mobile phone 7401 in the vicinity of the cartilage conduction portion 7424 corresponding to the entrance portion of vibration transmission is suppressed. This is, for example, the same effect as a sound attenuator attached to a stringed instrument piece corresponding to the entrance portion of the string vibration, and suppresses the entire casing of the mobile phone 7401 from resonating.

  The cartilage conduction portion 7424 is made of a material having a different acoustic impedance from that of the cellular phone 7401 and is isolated from the casing of the cellular phone 7401 by an elastic body 7465, so that the degree of freedom of vibration is ensured. In addition, the influence of vibration suppression by the weight connection of the battery 7448 is small, and good cartilage conduction can be obtained.

  On the other hand, the plurality of elastic bodies 7467 provided in the lower holder 7416 are also sandwiched between the front housing 7401a and the back housing 7401b and pressed against them. The lower holder 7416 has a high degree of freedom and the weight connection is weak. Therefore, even if the lower holder 7416 is held by the plurality of elastic bodies 7467 in a portion separated from the plurality of pins 7408, the specific concentration of the weight connection positions by the plurality of pins 7408 is not impaired.

  FIG. 119 is a cross-sectional view relating to Example 79 according to the embodiment of the present invention, which is configured as a mobile phone 7501. The embodiment 79 has many parts in common with the embodiment 78 in FIG. 118, so the common parts are denoted by the same reference numerals and description thereof is omitted.

  Example 79 differs from Example 78 in that a lower holder 7416 is also provided with a plurality of pins 7408 instead of a plurality of elastic bodies 7467. As a result, when the lower holder 7416 is also sandwiched between the front housing 7401a and the back housing 7401b, a small cross-sectional area connection by the pin 7408 occurs. In the case of Example 79, although the weight connection position of the battery is dispersed, the vibration suppression effect depends on the distance between the weight connection position and the cartilage conduction portion 7424, and thus the weight connection by the plurality of pins 7408 of the upper holder 7406 is still effective. It is. Therefore, even if some vibration suppression effects are sacrificed, the structure of the embodiment 79 can be adopted when priority is given to reducing the number of parts by making the structure of the upper holder 7406 and the lower holder 7416 common.

  120 is a cross-sectional view related to Example 80 according to the embodiment of the present invention, and is configured as a mobile phone 7601. FIG. The embodiment 80 has many parts in common with the embodiment 78 in FIG. 118, so the common parts are denoted by the same reference numerals and description thereof is omitted.

  Example 80 differs from Example 78 in that the elastic body 7465 between the integrally formed structure of the cartilage conduction parts 7424 and 7426 and the connection part 7427 and the housing of the mobile phone 7401 is omitted. When a sufficient vibration isolation effect can be obtained only by the difference in acoustic impedance between the integrally molded structure and the casing, the vibration suppression of the casing due to the weight connection of the battery 7448 is less likely to reach the integrated structure, and good cartilage Conduction can be ensured. Therefore, in the case where priority is given to reducing the number of parts and simplifying the connection structure between the integrally molded structure and the housing even at the expense of some cartilage conduction efficiency, the configuration of the embodiment 80 can be adopted. .

  FIG. 121A is a side cross-sectional view regarding Example 81 according to the embodiment of the present invention, which is configured as a mobile phone 7701a. In Example 81, since there are many parts common to Example 78 in FIG. 118, common parts are denoted by the same reference numerals and description thereof is omitted. Moreover, illustration is abbreviate | omitted about front sectional drawing.

  Example 81 differs from Example 78 in that the weight used for suppressing sound leakage is the internal frame structure 7748a of the mobile phone 7701a. The internal frame structure 7748a holds the battery 7448 and other internal structures such as a circuit and occupies most of the weight of the mobile phone. Further, the internal frame structure 7748a is connected to an integrally molded structure of the cartilage conduction parts 7424 and 7426 and the connection part 7427 through an elastic body 7465, and forms the main skeleton structure of the mobile phone 7701b. Therefore, the housing 4401a is an exterior part that covers the periphery of the housing 4401a.

  FIG. 121A is a side cross-sectional view regarding Example 81 according to the embodiment of the present invention, which is configured as a mobile phone 7701a. In Example 81, since there are many parts common to Example 78 in FIG. 118, common parts are denoted by the same reference numerals and description thereof is omitted. Moreover, illustration is abbreviate | omitted about front sectional drawing.

  Example 81 differs from Example 78 in that the weight used for suppressing sound leakage is the internal frame structure 7748a of the mobile phone 7701a. The internal frame structure 7748a holds the battery 7448 and other internal structures such as a circuit and occupies most of the weight of the mobile phone. Further, the internal frame structure 7748a is connected to an integrally molded structure of the cartilage conduction parts 7424 and 7426 and the connection part 7427 through an elastic body 7465, and forms the main skeleton structure of the mobile phone 7701b. Therefore, the housing 4401a functions as an exterior part that covers the periphery of the housing 4401a. 118, the internal frame structure 7748a suppresses the vibration of the casing forming the surface of the mobile phone 7701a in the vicinity of the cartilage conduction portion 7424 by its weight.

  FIG. 121B is a side cross-sectional view relating to a first modification example of Example 81 according to the embodiment of the present invention, which is configured as a mobile phone 7701b. Since the first modified example in FIG. 121 (B) has many parts in common with the example 81 in FIG. 121 (A), common parts are denoted by the same reference numerals and description thereof is omitted.

  In the first modification of FIG. 121 (B) as well as in the embodiment 81 of FIG. 121 (A), the cartilage conduction portions 7424 and 7426 and the connecting portion are connected via the elastic body 7465 whose internal frame structure 7748b is a vibration isolator. 7427 is connected to an integrally molded structure. However, the housing 7701b in the first modification only functions as an exterior part covering the periphery thereof, and is not directly connected to the integrally molded structure of the cartilage conduction parts 7424 and 7426 and the connection part 7427, and the vibration isolator and The inner frame structure 7748b is held by an elastic body 7765. Therefore, the vicinity of the cartilage conduction portion 7424 in the internal frame structure 7748b is interposed between the integrally molded structure and the casing as an exterior integrated with the internal frame structure. In this way, in the first modified example of FIG. 121 (B), the internal frame structure that occupies most of the weight is connected to the integrally molded structure of the cartilage conduction portions 7424 and 7426 and the connecting portion 7427, and the housing is vibrated. By holding the inner frame structure 7748b through the separating member 7765, the housing forming the outer surface of the mobile phone 7701b is suppressed from vibrating.

  FIG. 121C is a side cross-sectional view regarding the second modification example of Example 81 according to the embodiment of the present invention, which is configured as a mobile phone 7701c. Since the second modified example in FIG. 121C has many parts in common with the first modified example in FIG. 121B, the same reference numerals are given to the common parts and description thereof is omitted.

  121C is different from the first modification of FIG. 121B in that the elasticity between the integrally molded structure of the cartilage conduction parts 7424 and 7426 and the connection part 7427 and the internal frame structure 7748c is different. It is the point that the intervention of the body is omitted. In the case where vibration suppression is less likely to reach the integral structure due to the difference in acoustic impedance between the integral molded structure and the internal frame structure 7748c, and thus it is possible to ensure good cartilage conduction, such direct connection is simplified. It is possible to take a configured configuration. In other words, when priority is given to reducing the number of parts and simplifying the connection structure between the integrally molded structure and the internal frame structure 7748c even at the expense of some cartilage conduction efficiency, the configuration of the second modification can be adopted. it can.

  As described above, the first modified example in FIG. 121B or the second modified example in FIG. 121C first occupies most of the weight in the integrally molded structure of the cartilage conduction portions 7424 and 7426 and the connecting portion 7427. The internal frame structure 7748b or 7748c is connected to suppress vibration transmission. Then, a casing with a small weight ratio is connected to the internal frame structure via a vibration isolator, and the casing forming the outer surface of the mobile phone 7701b is suppressed from vibrating.

  Each of the above embodiments can be variously modified as long as the advantages can be enjoyed. For example, in the embodiment 78 of FIG. 118, when the vibration isolating effect of the elastic body 7465 is high, the integrally molded structure of the cartilage conduction parts 7424 and 7426 and the connection part 7427 is made of a material having an acoustic impedance equivalent to the casing of the mobile phone 7401. (For example, both materials may be used). When the vibration isolating effect of the elastic body 7465 is high, the acoustic impedance between the integrally molded structure of the cartilage conduction portions 7424 and 7426 and the connecting portion 7427 and the housing of the mobile phone 7401 is different due to the elastic body 7465 interposed. This is because a state equivalent to the above can be realized, and good cartilage conduction can be obtained even if the vibration of the casing is suppressed by the weight connection of the battery 7448.

  Further, the implementation of the features of the present invention described above is not limited to the embodiments in the above-described embodiments, and can be implemented by other embodiments as long as the advantages can be enjoyed. For example, the structure of the second modification of the embodiment 80 shown in FIG. 120 and the embodiment 81 shown in FIG. 121 (C) is not limited to the case where the cartilage conduction portion is made of a hard material. It is also suitable when the cartilage conduction portion is an elastic body as in the modification in FIG. 46 and FIG. The elastic cartilage conduction part differs greatly in acoustic impedance from the case, and even if the weight of the internal structure of the mobile phone is connected to the case in the vicinity of the cartilage conduction part, the cartilage conduction by the cartilage conduction part is not impaired. is there. 120 in FIG. 120 with a structure in which the cartilage conduction vibration source (piezoelectric bimorph element) 2525 is supported at both ends by left and right cartilage conduction parts (elastic body parts 4263a and 4263b) as in Example 46 and its modifications. Is applied, the upper holder 7406 is also extended to the left ear cartilage conduction part (elastic body part 4263a) side, and the pin 7408 is arranged not only near the elastic body part 4263b but also near the elastic body part 4263a. To.

  FIG. 122 is a block diagram relating to Example 82 according to the embodiment of the present invention, and is configured as a cartilage conduction vibration source device for a mobile phone. The embodiment 82 has many portions in common with the embodiment 76 of FIG. 116, so the same portions are denoted by the same reference numerals and the description thereof is omitted unless necessary. The embodiment 82 provides a cartilage conduction vibration source device that can be controlled by an application processor 7039 and a power management circuit 7053 in a normal mobile phone in the same manner as the embodiment 76 of FIG. A piezoelectric bimorph element 7013 as a cartilage conduction vibration source and its driver circuit 7503 are configured. The embodiment 82 of FIG. 122 differs from the embodiment 76 of FIG. 116 in the configuration of the digital sound processing circuit 7538 and the gain control in the analog output amplifier 7540.

  First, the configuration of the digital sound processing circuit 7538 will be described. Cartilage conduction can be defined as a broad sense of cartilage conduction and a narrow sense of cartilage conduction. In a broad sense, cartilage conduction is defined as the sound output from the cartilage conduction part, and the cartilage air conduction (the route that the vibration transmitted from the cartilage conduction part to the ear cartilage turns into air conduction in the ear canal and this is transmitted to the inner ear through the tympanic membrane. ), Cartilage bone conduction (route in which vibration transmitted from the cartilage conduction part to the ear cartilage is transmitted directly to the inner ear through the bone) and direct air conduction (air conduction sound generated from the cartilage conduction part directly through the cartilage directly To reach the inner ear). On the other hand, cartilage conduction in a narrow sense is defined as a sound transmitted to the inner ear through cartilage, and includes the above-described cartilage air conduction and cartilage bone conduction.

  The ratio of cartilage air conduction and cartilage bone conduction in the narrowly defined cartilage conduction is less than 1/10 of the former in normal persons, and the contribution of cartilage air conduction is extremely important. This is due to the very poor impedance matching from cartilage to bone. On the other hand, in the hearing impaired person with abnormalities in the external auditory canal and the middle ear, the ratio of chondral bone conduction increases compared to the normal person. This is because cartilage air conduction (and of course direct air conduction) is impaired.

  Next, regarding the contribution rate in the broad sense of cartilage air conduction, since the contribution of cartilage bone conduction is small in a normal person as described above, it is sufficient to pay attention to the ratio of cartilage air conduction and direct air conduction. Roughly speaking, the low sound range has cartilage air conduction, and the high sound area has direct air conduction. At 500 Hz, the cartilage air conduction is almost at 4000 Hz. It should be noted that frequency components necessary for discrimination of some consonants such as “shi” are present in a high frequency band around 4000 Hz where direct air conduction is dominant. However, in the cellular phone, since there is no problem in language identification during conversation and the frequency component of about 3000 Hz or more is cut because of the amount of information, cartilage air conduction is also very important.

  Regarding cartilage bone conduction, as described above, contribution to cartilage conduction in a broad sense is small in a normal person, but its frequency characteristic is considered to be almost flat from a low frequency region to a high frequency region. Incidentally, when the external ear canal is closed to the open condition, the sound pressure in the ear canal decreases in a low frequency band (such as 500 Hz), but the loudness (sense of loudness) does not decrease as much as the sound pressure decreases. Further, when the external ear canal is opened to the closed condition, the sound pressure in the ear canal decreases in the high frequency band, but the loudness does not decrease as much as the sound pressure in the ear canal. This suggests that there is cartilage bone conduction, although it is very small in both the low frequency band and the high frequency band.

  In the digital acoustic processing circuit 7538 of FIG. 122, the digital characteristics output from the application processor 7039 are added with the frequency characteristics and contributions of cartilage air conduction, cartilage bone conduction, and direct air conduction in the broad sense of cartilage conduction as described above. The audio signal is input to the cartilage bone conduction equalizer 7538a, the cartilage air conduction equalizer 7538b, and the direct air conduction equalizer 7538c, respectively, in the case of cartilage bone conduction only, in the case of cartilage air conduction only, and in the case of direct air conduction only, respectively. Perform optimal equalization. The equalization here is not equalization for obtaining a sound close to natural sound, but transmission of the frequency characteristics of the piezoelectric bimorph element 7013 which is a cartilage conduction vibration source and each of cartilage bone conduction, cartilage air conduction and direct air conduction. In consideration of the frequency characteristics in the route, it means acoustic processing for transmitting speech most efficiently from the viewpoint of language discrimination. Accordingly, priority is given to language discrimination, and the case where the voice quality is slightly changed from the natural one within a range that does not impair the identity verification is included.

  The synthesizing unit 7538d in the digital sound processing circuit determines a mixing ratio of outputs from the cartilage bone conduction equalizer 7538a, the cartilage air conduction equalizer 7538b, and the direct air conduction equalizer 7538c in accordance with an instruction from the application processor 7039 and changes the situation. Change this accordingly. The mixing ratio is determined based on the conversation when the cartilage conduction part is in contact with the ear cartilage without closing the ear canal entrance for normal subjects. The Specifically, for voice that does not involve communication such as voice memo playback, 3000 Hz or higher is not cut, so the contribution degree of the air conduction equalizer 7538c is directly increased. In addition, when setting for a hearing-impaired deaf person, since the elements that depend on bone conduction become large, the contribution of the cartilage bone conduction equalizer 7538a is enhanced. Further, when the occurrence of the ear canal bone conduction effect is detected, the external ear canal entrance is closed and direct air conduction is lost, so the contribution of the direct air conduction equalizer 7538c is stopped. Details of these processes will be described later.

  Next, automatic gain adjustment of the analog output amplifier 7540 will be described. The piezoelectric bimorph element 7013 has a maximum input rating that can be vibrated, but if a signal exceeding this is output from the analog output amplifier 7540, the sound is distorted and cartilage conduction at a desired frequency characteristic cannot be realized. On the other hand, when the maximum output from the analog output amplifier 7540 is lower than the maximum input rating of the piezoelectric bimorph element 7013, cartilage conduction that fully utilizes the ability of the piezoelectric bimorph element 7013 cannot be realized. The gain control unit 7540a sequentially monitors the average output of the DA converter 7138c for a predetermined time width, and the gain adjustment unit 7540b of the analog output amplifier 7540b so that the output level of the analog output amplifier 7540 becomes the maximum input rated level of the piezoelectric bimorph element 7013. To control. As a result, the ability of the piezoelectric bimorph element 7013 can be fully utilized to realize cartilage conduction at a desired frequency characteristic.

  FIG. 123 is a flowchart showing the functions of the application processor 7039 in the embodiment 82 shown in FIG. Note that the flow in FIG. 123 illustrates the operation of the driver circuit 7503 in order to explain the functions of the driver circuit 7503, and the operations are extracted with the focus on related functions. There are also operations of the application processor 7039 that are not. The flow in FIG. 123 starts when the main power supply of the mobile phone is turned on. In step S412, the initial startup and the function check of each unit are performed, and the screen display on the display unit of the mobile phone is started. Next, in step S414, the functions of the cartilage conduction unit and the transmitting unit of the mobile phone are turned off, and the process proceeds to step S416. With regard to turning off the cartilage conduction portion, power supply from the power management circuit 7053 to the driver circuit 7503 in FIG. 122 is turned off.

  In step S416, it is checked whether or not a voice memo recorded in advance has been played back. If a voice memo reproduction operation is not detected, the process proceeds to step S418, and it is checked whether or not a call is being made using a portable radio wave based on a response from the other party or an incoming call from the other party. If it is in a talking state, the process proceeds to step S420, the cartilage conduction part and the transmission part are turned on, and the process proceeds to step S422.

  In step S422, it is checked whether or not a setting for a hearing-impaired person is performed. If this setting is not performed, the process proceeds to step S424. In step S424, it is checked whether or not the ear canal bone conduction effect is caused by closing the ear canal entrance. If not, the process proceeds to step S426, and the signal without inverting the waveform of one's own voice is added. The process proceeds to S428. The presence / absence of the voice waveform inversion signal has been described in steps S52 to S56 in the flow of FIG. In step S428, the contribution ratio of the outputs of the equalizers 7538a, 7538b and 7538c is set to the optimum value of the call state by the normal person, and the process proceeds to step S430.

  On the other hand, when the state of the occurrence of the ear canal bone conduction effect due to closing of the ear canal entrance is detected in step S424, the process proceeds to step S430, and the contribution of the direct air conduction equalizer 7538c is stopped in step S432 while adding the self-voice waveform inversion signal. The process proceeds to step S430. This is because, as described above, direct air conduction is lost by closing the ear canal entrance. If it is detected in step S422 that the setting for the hearing-impaired deaf person has been made, the process proceeds to step S434, and the contribution of the cartilage bone conduction equalizer 7538a is increased, and the process proceeds to step S430.

  In step S430, it is checked whether or not the call has been disconnected. If not, the process returns to step S422, and thereafter steps S422 to S434 are repeated unless the call is disconnected. This makes it possible to change the contribution of the outputs of the equalizers 7538a, 7538b, and 7538c in response to changes in settings and situations during a call. On the other hand, when it is detected in step S430 that the call has been disconnected, the process proceeds to step S436, where the functions of the cartilage conduction unit and the transmitting unit of the mobile phone are turned off, and the process proceeds to step S438.

  On the other hand, when a voice memo reproduction operation is detected in step S416, the process proceeds to step S440, and the contribution degree of the direct air conduction equalizer 7538c is increased. This is because it is appropriate in terms of sound quality to directly increase the contribution of air conduction for voices that do not go through communication such as voice memo playback as described above, since the frequency of 3000 Hz or higher is not cut. Next, in step S442, the cartilage conduction part is turned on, and the process proceeds to step S444 to perform voice memo reproduction processing. When the voice memo reproduction process is completed, the process proceeds to step S446 to turn off the cartilage conduction portion, and the process proceeds to step S438. If no call state is detected in step S418, the process immediately proceeds to step S438.

  In step S438, it is checked whether or not the main power source of the mobile phone is turned off. If the main power source is not turned off, the process returns to step S416. Repeat as needed. On the other hand, when the main power-off is detected in step S438, the flow ends.

  FIG. 124 is a perspective view of Example 83 according to the embodiment of the present invention, and is configured as a notebook-type large-screen mobile device 7601 having a mobile phone function. FIG. 124A is a front view of a mobile device 7601. The mobile device 7601 includes a large screen display portion 7605 that also serves as a touch panel. The portable device 7601 is further provided with a cartilage transmission / reception unit 7681 connected to the right side thereof by a universal joint 7603. The cartilage transmission / reception unit 7681 has a cartilage conduction part 7624 at the upper end and a microphone 7623 at the middle part. The cartilage conduction transmitter / receiver unit 7681 has a structure in which the cartilage conductor portion 7624 can be pulled upward as will be described later, but FIG. Indicates the state.

  FIG. 124B shows a state in which the mobile phone function of the portable device 7601 is used. The cartilage conduction portion 7624 is drawn upward as indicated by an arrow 7681a and the cartilage conduction portion is indicated as indicated by an arrow 7681b. It can be seen that 7624 can be tilted forward. As described above, since the cartilage transmission / reception unit 7681 is connected to the portable device 7601 by the universal joint 7603, the direction to be tilted is not limited to the front but can be tilted in any direction.

  With the above-described configuration, for example, the portable device 7601 is placed on a desk, and the cartilage conduction unit 7624 that has been pulled out is placed on the ear cartilage by hand while viewing the content (newspaper, book, graphic, etc.) displayed on the large screen display unit 7605. You can make a phone call. At this time, one's own voice can be picked up by the microphone 7623 coming near the mouth in such a call state. In addition to this posture, it is possible to apply the cartilage conduction portion 7624 to the ear cartilage by appropriately adjusting the pulling length and direction of the cartilage conduction transmitter / receiver portion 7681 while holding the portable device 7601 by hand. is there. The same applies to the case where the portable device 7601 is placed on the knee, and the cartilage conduction portion 7624 is designed to have a sufficient pull-out length with a structure similar to an antenna so as to be able to cope with such a case.

  Further, even when a mobile phone is received while using the portable device 7601 in the state of FIG. 124A, it can be dealt with instantly by pulling out the cartilage conduction transmitter / receiver 7681. Furthermore, if the operation of pulling out the cartilage transmission / reception unit 7681 is linked with the response operation for incoming calls, the operation becomes one-touch, and the usability is further improved. Similarly, when the user wants to make a mobile phone while using the portable device 7601 in the state shown in FIG. Just pull it out and put it in your ear. Also at this time, if the operation of pulling out the cartilage conduction transmitter / receiver 7681 is linked with the calling operation, the user can drive the phone with one touch.

  Note that the state shown in FIG. 124 (B) is used in a posture in which a horizontally long screen is viewed, but it is optional to use this in a vertically long state. For example, when the cartilage conduction transmitter / receiver unit 7681 is used in a vertically long state, for example, the cartilage conductor transmitter / receiver unit 7681 is used in a state of extending from the upper right corner of the vertically long screen so as to reach the ear cartilage. The above is the use in which the cartilage conduction part 7624 is applied to the right ear cartilage in both the landscape screen and the portrait screen, but if the portable device 7601 is rotated, the posture of listening with the left ear can be easily achieved. For example, when the cartilage conduction transmitter / receiver unit 7681 is used in a vertically long state, the cartilage conductor transmitter / receiver unit 7681 is used in a state of extending from the lower left corner of the vertically long screen so as to reach the left ear cartilage. . Further, in the horizontally long state in which the top and bottom are reversed in FIG. 124 (B), the cartilage conduction transmitting / receiving unit 7681 is used in a state of extending from the upper left corner of the horizontally long screen so as to reach the left ear cartilage. In any case, since the cartilage conduction portion 7624 is not separated from the portable device 7601 and is connected to the portable device 7601 by the telescopic cartilage conduction transmitter / receiver portion 7681 and the universal joint 7603, it can be used during carrying and use. It is easy to configure.

  FIG. 125 is a perspective view showing a modification of the embodiment 83 in FIG. 124, and is configured as a notebook type large-screen mobile device 7701 having a mobile phone function in the same manner as the embodiment 83. The modified example in FIG. 125 is different from the example 83 in FIG. 124 in that the large screen display unit 7705 that also functions as a touch panel is used in a vertically long state and is connected to the upper right corner on the right side by a universal joint 7703. This is the point that a receiver section 7781 is provided. As a result, the cartilage conduction part 7624 is the lower end of the cartilage conduction transmitting / receiving part 7781. Note that a microphone 7723 is provided on the main body side of the portable device 7701 in the modified example.

  With the above structure, the cartilage conduction portion 7724 can be pulled downward as indicated by an arrow 7781a and pulled forward as indicated by an arrow 7781b. 124, the cartilage transmission / reception unit 7781 is connected to the portable device 7701 by a universal joint 7703. Therefore, the direction to be lifted is not limited to the front, but can be pulled in any direction. In the modification of FIG. 125, when used in the illustrated vertically long state, the cartilage conduction transmitter / receiver 7781 is used in a state where it extends from the upper right corner of the vertically long screen so as to reach the right ear cartilage. On the other hand, for example, when the cartilage conduction transmitter / receiver 7781 side is used in a horizontally long screen, the cartilage conductor transmitter / receiver 7781 extends from the lower right corner of the horizontally long screen to reach the right ear cartilage. Will be used. The modified example of FIG. 125 can also be used by touching the left ear cartilage on both the portrait and landscape screens by rotating the screen as appropriate in the same manner as in Example 83 of FIG.

  In any of Example 83 in FIG. 124 and its modification in FIG. 125, the cartilage conduction portion may be configured by a piezoelectric bimorph element or an electromagnetic vibrator. In addition, the structure in the embodiment 83 in FIG. 124 and the modification in FIG. 125 is not limited to the cartilage conduction system, and an earphone made of a normal air conduction speaker may be attached to the position of the cartilage conduction portion.

  The implementation of the present invention is not limited to the above-described embodiments, and various advantages of the present invention can be enjoyed in other embodiments. Furthermore, these features can be utilized by being replaced or combined in various embodiments. For example, in the example 82 shown in FIGS. 122 and 123, the cartilage bone conduction equalizer 7538a, the cartilage air conduction equalizer 7538b, and the direct air conduction equalizer 7538c are shown as hardware blocks, respectively. It can be realized by processing circuit software. Further, in the example 82, the equalization change according to the conditions is configured by changing the mixing ratio of the outputs of the three equalizers, but if the same output is obtained as the final output of the digital sound processing circuit 7538, Since it is good, the equalization may be changed all at once.

  The present invention can be applied to a cartilage conduction vibration source device for a mobile phone and a mobile phone.

7236 Audio signal input unit 7538 Acoustic processing unit 7538d Control signal input unit 7540 Amplifier unit 7540b Gain adjustment unit 7013 Piezoelectric bimorph element 7438b First acoustic processing unit 7438c Second acoustic processing unit 7601, 7701 Portable device 7605, 7705 Screen portable device 7681, 7781 Support body 7603, 7703 Universal joint 7624, 7724 Audio output unit

Claims (7)

  An audio signal input unit for inputting an audio signal, a plurality of acoustic processing units for processing the audio signal input from the audio signal input unit for cartilage conduction vibration, and processed and synthesized by the plurality of acoustic processing units An amplifier for outputting a processing signal as a drive signal to the cartilage conduction vibration source, and the plurality of acoustic processing units perform acoustic processing based on frequency characteristics of cartilage air conduction from the cartilage conduction vibration source A cartilage conduction vibration source device comprising: a first acoustic processing unit; and a second acoustic processing unit that performs acoustic processing based on frequency characteristics of direct air conduction from the cartilage conduction vibration source.   2. The cartilage conduction vibration source device according to claim 1, wherein the contribution of the second acoustic processing unit to the drive signal is enhanced by a voice that does not pass through the communication unit rather than a voice that passes through the communication unit.   3. The cartilage conduction vibration source device according to claim 1, wherein the contribution of the second acoustic processing unit to the drive signal is stopped when the ear canal entrance is in a closed state. 4. The cartilage conduction vibration source device according to claim 1, wherein the contribution of the first acoustic processing unit and the second acoustic processing unit to the drive signal is changed based on a control signal.   2. The cartilage conduction according to claim 1, wherein the amplifier unit includes a gain adjustment unit that adjusts a gain so that an output level becomes a predetermined drive signal level for the cartilage conduction vibration source according to an input signal level. Vibration source device.   A mobile phone comprising the cartilage conduction vibration source device according to any one of claims 1 to 5.   7. The mobile phone according to claim 6, wherein the mobile phone is configured as a mobile device having a touch panel combined large screen display unit.