JP2007006420A - Data communication system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a data communication system for improving operability of a device worn on a human body. <P>SOLUTION: A data communication system comprises a device 2 for wearing to be worn on the body of a user 1 and a communication device 3 that the user 1 holds with him and which performs data communication with the device 2, the communication device 3 includes a data transmitting section 11 for transmitting data and a first communication electrode 8 in contact with the body of the user 1, and the device 2 for wearing includes a data receiving section 16 for receiving data transmitted from the data transmitting section 11 and a second communication electrode 13 in contact with the body of the user. The first communication electrode 8 and the second communication electrode 13 comprise two electrodes A and B and electrodes C and D of which at least any one is in contact, respectively, the data transmitting section 11 transmits data with the human body 1 as a transmission line via the first communication electrode 8, and the data receiving section 16 receives data via the second communication electrode 13, so that data are exchanged between the device 2 for wearing and the communication device 3. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a data communication system in which a wearing device to be worn on a user's body and a communication device held by the user use a human body as a part of a transmission path to transmit and receive data.

  Conventionally, as a data communication method between data communication devices at a relatively short distance, there are a method using wired communication by cable connection and a method using wireless communication by light or radio waves. However, the method using wired communication using a cable is very inconvenient because the work of connecting the cable is troublesome and the cable needs to be carried around. On the other hand, the method using wireless communication can perform data communication without troublesome work, but there is a risk of data being intercepted and leaking to a third party at the time of communication, and there is also a possibility of interference, security. I'm worried about the face.

In order to solve the above-described problems, a data communication system that transmits and receives data using a human body as a part of a transmission path is known, for example, as in Patent Document 1. That is, in the data communication system of Patent Document 1, as shown in FIG. 11, the data transmission device 100 that transmits data includes a transmission electrode 101 that contacts the body of the user 1, and the body of the user 1 (for example, , Arm part). A data receiving apparatus 102 that receives data includes a receiving electrode 103 and is grounded to the ground. As a communication method of this data communication system, when the user 1 touches the receiving electrode 103 of the data receiving apparatus 102 with a fingertip, a weak current flows through the body of the user 1 and the data transmitted from the data transmitting apparatus 100 is transmitted. Is transmitted along the current flowing through the body of the user 1, and the data receiving apparatus 102 receives the data via the receiving electrode 103.
JP 2001-0777735 A

  For example, in order to improve the operability of devices (digital headphone speakers, hearing aids, etc.) worn on the human body, a method in which the human body is part of the transmission path can be considered. In this case, the data receiving device is incorporated into a device such as a digital headphone speaker, but the device such as the digital headphone speaker is not convenient unless it can be used even if the human body moves. It is required that the data transmission device for transmitting the message can be carried.

  However, in a data communication system that transmits and receives data using a human body as a part of a transmission path as in Patent Document 1, in order to perform stable data communication, the data transmission device 100 is attached to the human body 1 and the data receiving device. 102 is assumed to be used in a grounded state, and when the data receiving apparatus 102 is incorporated into a device that is not grounded, such as a digital headphone speaker, the connection for transmitting the reference potential of the earth ground cannot be obtained. In addition, communication may become impossible or unstable.

  The present invention has been made in view of the above-described matters, and an object thereof is to provide a data communication system that improves the operability of a device attached to a human body.

  A data communication system according to a first aspect of the present invention includes a wearing device to be worn on a user's body and a communication device that is held by the user and communicates data with the wearing device. A data transmission unit for transmitting data and a first communication electrode in contact with the user's body are provided, and the wearing device has a data reception unit for receiving data transmitted from the data transmission unit and a user's body A second communication electrode that is in contact with the body, the first communication electrode and the second communication electrode each include two electrodes that are in contact with each other, and the data transmission unit includes: The data is transmitted between the wearing device and the communication device by transmitting data using the human body as a transmission path via the communication electrode and the data receiving unit receiving the data via the second communication electrode. It is characterized by sending and receiving

  According to this configuration, the wearable device can be operated using the human body as a transmission path by the communication device, so there is no need to use a cable as in wired communication, and there is no fear of communication interference as in wireless communication. The operability of the equipment is improved.

  A data communication system according to a second aspect of the present invention is the data communication system according to the first aspect, wherein the two electrodes of the first communication electrode are both of the user's body when the user holds the communication device. The two electrodes of the second communication electrode are arranged at a position where one electrode comes into contact with the user when the user wears the wearing device, and the other electrode Is disposed at a position where it does not come into contact with the user's body.

  According to this configuration, in the data communication system according to claim 1, one electrode of the second communication electrode of the wearing device is disposed at a portion that comes into contact with the user when the wearing device is worn, and the other When the user holds the communication device, the other electrode of the second electrode is touched with the hand when the user holds the communication device. The two electrodes of the first communication electrode and the two electrodes of the second communication electrode that are in contact with the human body are electrically connected using the human body as a medium, and the human body is used as a transmission path. Since a circuit is formed, a weak current flows through the circuit, and data is transmitted to the current from the data transmission unit of the communication device, so that the operability of the mounting device is further improved.

  According to a third aspect of the data communication system of the present invention, in the data communication system according to the first aspect, the two electrodes of the first communication electrode are both used when the user holds the communication device. The two electrodes of the second communication electrode are arranged at positions that contact the user's body when the user wears the wearing device. It is characterized by that.

  According to this configuration, in the data communication system according to claim 1, the two electrodes of the second communication electrode in the wearing device are in contact with the user when the user wears the wearing device. When the user is holding a communication device, the user touches some part of the user's human body without touching the electrode. A circuit using the human body as a transmission path is formed by electrically connecting the two electrodes of the first communication electrode and the two electrodes of the second communication electrode using the human body as a medium. Since a weak current flows and data is loaded on this current and transmitted from the data transmission unit of the communication device, the operability of the mounting device is further improved.

  A data communication system according to a fourth aspect of the present invention is the data communication system according to the second aspect, wherein the wearing device is a headphone, and the other electrode of the second communication electrode is the head of the user in the headphone. It is provided in the position located in the approximate center of a part.

  According to this configuration, when the wearing device is a headphone, the other electrode of the second communication electrode is provided at a portion of the headphone located substantially at the center of the user's head. When the other electrode of the communication electrode 2 is touched, it becomes easy to touch with either the left or right hand, and the operability of the wearing device is further improved.

  A data communication system according to a fifth aspect of the present invention is the data communication system according to any one of the first to fourth aspects, wherein the communication device is provided with a data receiving unit, and the mounting device is provided with a data transmitting unit. The data transmission unit of the communication device transmits data using the human body as the transmission path via the second communication electrode, and the data reception unit of the communication device receives the data via the first communication electrode. Data transmission / reception is performed between the wearing device and the communication device.

  According to this configuration, the communication device is provided with the data receiving unit, the mounting device is provided with the data transmitting unit, and the data transmitting unit of the mounting device is connected to the human body via the second communication electrode. The data receiving unit of the communication device transmits data through the transmission path, and the data receiving unit receives the data via the first communication electrode, thereby enabling bidirectional communication between the wearing device and the communication device. The response from the wearing device can be displayed on the display device of the communication device, the amount of data that can be grasped is increased, and the range of operation of the wearing device is expanded.

  A data communication system according to a sixth aspect of the present invention is the data communication system according to the fifth aspect, wherein the mounting device receives an activation start signal for starting transmission of data from the data transmission unit of the communication device, and receives data from the communication device. It has the starting switch which transmits to a part.

  For example, when a user touches an electrode of a wearable device after operating the communication device and a weak current flows in the human body, and data from the communication device is transmitted to the wearable device, the user The data transmission unit of the communication device continues to transmit data until data is received by the data reception unit of the mounting device until the electrode of the mounting device contacts the user after the operation of Become. Therefore, the longer the time between the operation of the communication device and the contact of the electrode of the mounting device with the user, the greater the power consumed by the data transmission unit of the communication device. According to this configuration, in the data communication system according to claim 5, the mounting device transmits an activation start signal for starting transmission of data from the data transmission unit of the communication device to the data reception unit of the communication device. Since the communication device transmits data to the wearing device after receiving the activation notification signal of the activation switch, useless transmission operation for sending data to the wearing device, or wearing The useless reception operation of the data receiving unit in the communication device can be omitted, and consequently the power consumption of the communication device can be suppressed.

  A data communication system according to a seventh aspect of the present invention is the data communication system according to the fifth aspect, wherein the communication device communicates an activation start signal for starting data transmission from the data transmission unit of the communication device from the mounting device. Means is provided for performing transmission of a start request signal for requesting the wearing device to output to the device at regular intervals.

  According to this configuration, when the wearing device comes into contact with the user, the communication device transmits the activation request signal for transmitting the activation start signal from the wearing device to the communication device. As in the system, power consumption of the entire system can be suppressed without providing a start switch.

  A data communication system according to an eighth aspect of the present invention is the data communication system according to any one of the first to seventh aspects, wherein the communication device includes an interface unit that transmits and receives data to and from the control unit of the portable device. To do.

  According to this configuration, by using the operation unit and the display unit of the portable device, it is not necessary to provide the operation unit and the display unit in the communication device itself, and the cost can be reduced.

  According to the data communication system of the present invention, it is not necessary to use a cable as in wired communication, and there is no fear of communication interference as in wireless communication, because the wearing device can be operated using the human body as a transmission path by the communication device. Therefore, the operability of the wearing device is improved.

  Hereinafter, the present invention will be described based on Embodiments 1 to 6.

(Embodiment 1)
The data communication system of the present embodiment is used for a communication system including a headphone type audio digital player 2 (hereinafter abbreviated as headphone 2) with a wireless control function.

  As shown in FIG. 1, the communication system includes a headphone 2 that is a wearing device worn on the head of the user 1 and a remote controller 3 that is a communication device held in the hand of the user 1. is doing. Data is transmitted and received between the headphones 2 and the remote controller 3 to adjust the volume and sound quality of the headphones 2.

  2A is a front view of the remote controller 3 and FIG. 2B is a rear view of the remote controller 3. FIG. As shown in FIG. 2A, the operation switch 5 and the display unit 6 are provided on the disc-shaped operation table 4, and the wristband 7 is provided on the operation table 4. Is attached to the wrist of the user 1 and fixed like a wristwatch. The remote controller 3 may be of any form as long as it can be held on the arm of the user 1, but in this embodiment, the wristband type remote controller 3 is used.

  For example, when the operation switch 5 wants to listen to music with the headphones 2, the music data input to the remote controller 3 is selected, and the music playback volume, rewind, fast forward, pause, etc. can be operated. It has become. These operations are controlled by a remote controller control unit 9 provided in the remote controller 3 described later.

  As shown in FIG. 2B, a first communication electrode 8 is provided on the back surface of the remote controller 3. The first communication electrode 8 is for performing transmission / reception with the remote controller 3 using the body of the user 1 as a transmission path.

  The first communication electrode 8 has two electrodes: a signal electrode A that is an electrode for signal communication and a reference electrode B that is an electrode for a reference potential. The signal electrode A and the reference electrode B are each attached to the back surface of the remote controller 3 so that the user 1 can directly contact the skin of the user 1 when the user 1 holds (wears) the remote controller 3. It is installed.

  FIG. 3 is a configuration diagram of the remote controller 3. The remote controller 3 is provided with the two electrodes (signal electrode A and reference electrode B), the operation switch 5 and the remote controller 9 described above. In addition, a display unit 6 that displays an operation state of the operation switch 5 is disposed at a position where the user 1 can visually recognize from the outside, and a battery 10 that is a power source of the remote controller 3 is connected to the remote controller 9. In addition, a data transmission unit 11 that transmits data in the remote controller 3 to the headphones 2 and a data reception unit 12 that receives data from the headphones 2 are provided. Further, the signal electrode A and the reference electrode B are connected to the data transmission unit 11 and the data reception unit 12, respectively.

  The headphone 2 in the present embodiment will be described as having headphones 2a and 2b that come into contact with both ears of the user 1. However, it may be configured to be used by being hooked on the user's ear, or may be configured to insert a hole in the ear of the user 1 like an earphone.

  As shown in FIG. 1, the headphone 2 includes two speaker units 2 a and 2 b that are in contact with both ears of the user 1, and the two speaker units 2 a and 2 b connected to each other so that the top of the user 1 And a connecting member 2c for supporting both speaker portions 2a and 2b.

  One speaker unit 2 a is provided with a second communication electrode 13. The second communication electrode 13 is for performing transmission / reception from the headphones 2 (2a) using the body of the user 1 as a transmission path. As shown in FIG. 1, the second communication electrode 13 has two electrodes: a reference electrode C that is a reference potential electrode and a signal electrode D that is a signal communication electrode. Of these two electrodes C and D, one reference electrode C is the surface of the headphone 2 on the side that comes into contact with the ear of the user 1 of the speaker unit 2a when the user 1 wears the headphone 2. It is provided on a surface that can directly contact the skin of the user 1. The other signal electrode D is provided on the surface opposite to the reference electrode C, that is, the surface that does not come into contact with the user 1 when the headphones 2 are worn. It can be done.

  FIG. 4 is a circuit configuration diagram showing each configuration arranged in one speaker portion 2a. The speaker unit 2a includes a power supply circuit unit 14 that supplies power to the speaker unit 2a, a main body circuit unit 15 that is an operation circuit of the speaker unit 2a, a main body control unit 18 that controls the speaker 2a, and the speaker unit 2a. A data transmitter 16 that transmits data to the remote controller 3 and a data receiver 17 that receives data from the remote controller 3 are provided. The power supply circuit unit 14, the main body circuit unit 15, the data transmission unit 16, and the data reception unit 17 are controlled by the main body control unit 18. Further, the second communication electrode 13 having the two reference electrodes C and the signal electrode D described above is provided, and each is connected to the data transmission unit 16 and the data reception unit 17.

  Next, a communication method of the data communication system of this embodiment will be described. First, the communication operation of the entire data communication system of the present invention will be described with reference to FIG. When data is transmitted from the data transmitter 11 of the remote controller 3 to the headphones 2, when the operation switch 5 of the remote controller 3 is pressed, the data transmitter 11 of the remote controller 3 enters a data transmission standby state. Become. In this state, when the user touches the signal electrode D in the second communication electrode 13 of the speaker unit 2a with a finger, the signal electrode A, the finger of the user 1, the signal electrode D, the reference electrode C, the use A transmission path having the loop of the head of the user 1, the arm of the user 1, and the reference electrode B is formed. A weak current flows through the circuit using the human body as a transmission path, and the data transmitted from the data transmission unit 11 of the remote controller 3 is put on the current, and the data reception unit 17 of the speaker unit 2a receives the data. The

  When data is transmitted from the data transmission unit 16 of the speaker unit 2a to the remote controller 3, the user 1 points to the signal electrode D in the second communication electrode 13 of the speaker unit 2a. , The signal electrode D, the finger of the user 1, the signal electrode A, the reference electrode B, the arm portion of the user 1, the head of the user 1, and the transmission path having the reference electrode C as a loop are formed. A weak current flows through the circuit using the human body as a transmission path, and the data transmitted from the data transmitting unit 16 of the speaker unit 2a is put on the current, and the data is received by the data receiving unit 12 of the remote control operating unit 3. The

  Next, the communication method of the data communication system of the present invention will be specifically described. As shown in FIG. 1, a user 1 wears a headphone 2 on his head and holds a wristband type remote controller 3 on his arm.

  First, a case where data is transmitted from the remote controller 3 to the headphones 2 will be described. For example, when the user 1 wants to listen to music, music data stored in advance in the remote controller 9 in the remote controller 3 is selected by the operation switch 5, and then the user wants to play the music. explain. Of the operation switches 5 of the remote controller 3 shown in FIG. 2, the reproduction switch 5a is pressed. Then, the reproduction information is transmitted to the remote control unit 9 shown in FIG. The reproduction information of the remote control unit 9 is transmitted to the data transmission unit 11, and the data transmission unit 11 is in a data transmission standby state so that data is immediately transmitted when the transmission path is formed.

  Here, when the user 1 touches the signal electrode D of the speaker unit 2a with a finger, a circuit using the human body as a transmission path is formed, and the data transmission unit 11 of the remote controller 3 is in a data transmission standby state. Data is transmitted to the signal electrode D of the headphone 2 through the signal electrode A of the remote controller 3 using the finger as a transmission path. The data transmitted to the signal electrode D is received by the data receiving unit 17 of the speaker unit 2a in FIG. The received data is transmitted to the main body circuit unit 15 by the main body control unit 18, and music flows from the headphones 2.

  Next, a case where data is transmitted from the headphones 2 to the remote controller 3 will be described. For example, when a battery is used as the power supply circuit unit 14 of the speaker unit 2a, it is conceivable that the remaining battery level is displayed on the display unit 6 of the remote controller 3 to inform the user 1. As shown in FIG. 4, the remaining battery level data of the headphones 2 is transmitted to the data transmission unit 16 via the main body control unit 18 of the speaker unit 2a. The battery remaining amount data is in a transmission standby state so that the data is immediately transmitted when the transmission path is formed.

  Here, when the user 1 touches the signal electrode D of the speaker unit 2a with a finger, a circuit using the human body as a transmission path is formed, and data in a transmission standby state is transmitted from the data transmission unit 16 of the speaker unit 2a. The finger is transmitted to the signal electrode A of the remote controller 3 via the signal electrode D of the speaker unit 2a as a transmission path. The battery remaining amount data transmitted to the signal electrode A is received by the data receiving unit 12 of the remote controller 3 shown in FIG. The received battery level data is displayed on the display unit 6 via the remote control unit 9.

  As another example, when music of a number of songs is played continuously by the remote controller 3, there is a case where it is not known which song is currently flowing from the headphones 2. In this case, it is conceivable that the title of the currently playing song is displayed on the display unit 6 of the remote controller 3 to inform the user. Even in such a situation, as in the case of the remaining battery level data, the song title data is transmitted from the speaker unit 2a to the signal electrode A of the remote controller 3 via the signal electrode D, and the song title data is operated by the remote control. The music received from the data receiving unit 12 of the device 3 and the music currently flowing from the headphones is displayed on the display unit 6.

  In the present embodiment, the data communication system is used for a communication system of an audio digital player having the headphones 2. However, for example, the data communication system is mounted on the head of a user such as a hearing aid and used to adjust the volume. It can also be used for devices having functions.

  In this embodiment, the data transmission units 11 and 16 and the data reception units 12 and 17 are provided in both the remote controller 3 and the speaker unit 2a, and bidirectional communication is possible. Only the data transmission unit 11 may be provided, and only the data reception unit 17 may be provided in the speaker unit 2a. On the contrary, only the data transmission unit 12 may be provided in the remote controller 3 and only the data reception unit 16 may be provided in the speaker unit 2a. In these cases, one-way communication is performed.

  Therefore, according to the present embodiment, since the remote controller 3 can operate the headphone 2 using the human body as a transmission path, it is not necessary to use a cable as in wired communication, and there is no fear of communication interference as in wireless communication. Therefore, the operability of the communication system using the headphones 2 is improved.

  In addition, the reference electrode C of the second communication electrode 13 of the headphone 2 is disposed at a portion that contacts the user 1 when the headphone 2 is worn, and the signal electrode D contacts the user 1 when the headphone 2 is worn. Since the remote controller 3 is held by the user 1, the first electrode that is in contact with the body of the user 1 only by touching the signal electrode D with a hand or the like when the remote controller 3 is held by the user. The two electrodes (A, B) of the communication electrode 8 and the two electrodes (C, D) of the second communication electrode 13 are electrically connected using the human body (user 1) as a medium, so that the human body Since a circuit using (user 1) as a transmission path is formed, a weak current flows through the circuit, and data is transmitted to the current from the data transmission unit 11 of the remote controller 3 so that the headphones 2 The operability is further improved.

  Further, since the data transmission units 11 and 16 and the data reception units 12 and 17 are provided in both the speaker unit 2a and the remote control device 3, bidirectional communication between the headphones 2 and the remote control device 3 is performed. The information from the headphones 2 can be displayed on the display 6 of the remote controller 3 and the amount of data that can be grasped is increased, and the range of operations of the communication system using the headphones 2 is expanded.

(Embodiment 2)
Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 5 is a diagram showing a method of using the data communication system of this embodiment.

  The present embodiment is different from the data communication system of the first embodiment in that the signal electrode D of the second communication electrode 13 is attached to the connection member 2c of the headphone 2. Furthermore, the signal electrode D is disposed at a location corresponding to the top of the connecting member 2c located substantially at the center of the user 1 when the user wears the headphones 2. Other configurations of the remote controller 3 and the headphones 2 are the same as those in the first embodiment.

  Next, a method for using the data communication system of this embodiment will be described. FIG. 5A is a diagram when the user 1 is facing the front and the remote controller 3 is mounted on the left arm. When the operation switch 5 of the remote controller 3 is operated and the data transmission unit 11 is in a data transmission standby state, the signal electrode D provided near the top of the user 1 in the headphone 2 with the left arm of the user 1 Is touched, a transmission path is formed on the body of the user 1. That is, as shown by the dotted line in FIG. 5A, the signal electrode A, the finger of the user 1, the signal electrode D, the connection member 2c, the reference electrode C, the head of the user 1, the arm of the user 1, A circuit having the reference electrode B as a loop is formed, a weak current flows, and data from the data transmission unit 11 of the remote controller 3 is received by the data reception unit 17 in the headphones 2. In this case, the transmission path from the signal electrode D to the reference electrode C is connected by a known transmission path such as a cable provided in the connection member 2c.

  FIG. 5B is a diagram when the user 1 is facing the front and the remote controller 3 is mounted on the right arm. When the signal electrode D provided near the top of the head 1 of the headphone 2 with the right arm of the user 1 is touched, a loop from the signal electrode A to the reference electrode B is formed as in the case of FIG. Thus, the data reception unit 17 in the headphones 2 receives the data transmitted from the data transmission unit 11 of the remote controller 3.

  According to the present embodiment, the signal electrode D of the second communication electrode 13 is provided in the vicinity of the top of the user 1 in the connection member 2c of the headphone 2, so that the user 1 is on either the left or right arm. Even when the remote controller 3 is attached, the signal electrode D can be touched by natural operation. Therefore, the operability of the communication system using the headphones 2 is further improved.

(Embodiment 3)
Next, Embodiment 3 of the present invention will be described with reference to FIG. FIG. 6 is a diagram showing a method of using the data communication system of the present embodiment. In the first embodiment, the signal electrode D is provided on the outer surface of the speaker unit 2a opposite to the user 1, but in the present embodiment, the signal electrode D is provided on the surface of the user 1 side. That is, both the reference electrode C and the signal electrode D are provided on the surface on the user 1 side, so that the reference electrode C and the signal electrode D can come into direct contact with the body of the user 1 when the headphones 2 are worn.

  The communication method of the data communication system of the present embodiment is the same as that of the first embodiment. In the case of the first embodiment, the user 1 transmits and receives data by touching the signal electrode D. In the present embodiment, the user 1 touches his / her body, as shown by the dotted line in FIG. 6, the signal electrode A, the finger of the user 1, the head of the user 1, the signal electrode D, the reference electrode A transmission path having the electrode C, the user's 1 head, arm, and reference electrode B as a loop is formed to transmit and receive data. Here, the transmission path between the reference electrode C and the signal electrode D is electrically connected by a known transmission path (not shown) such as a cable provided inside the speaker unit 2a.

  According to the present embodiment, a circuit using the human body as a transmission path is formed and data is transmitted simply by touching a part of the human body of the user 1 without touching the signal electrode D. The operability of the communication system using 2 is further improved.

(Embodiment 4)
Next, a fourth embodiment of the present invention will be described with reference to FIGS. FIG. 7 is a configuration diagram of the speaker unit 2a of the present embodiment. The wireless communication system of the present embodiment is different from the first to third embodiments in that the start switch 19 is provided on the reference electrode C.

  When the activation switch 19 is pressed, the information is transmitted to the main body control unit 18 and an activation start signal for starting data transmission is transmitted from the data transmission unit 16. The activation start signal is received by the data receiver 12 of the remote controller 3 and data is transmitted from the data transmitter 11 of the remote controller 3. Therefore, in the present embodiment, the remote controller 3 is provided with the data transmission unit 11 and the data reception unit 12, and the speaker unit 2 a is provided with the data transmission unit 16 and the data reception unit 17. The configuration is such that communication is possible.

  The activation switch 19 that is a feature of the present embodiment will be described in more detail with reference to FIG. FIG. 8 is an explanatory diagram showing the data transmission status due to the operation of the activation switch 19. In the present embodiment, a case where the headphones 2 are worn after the remote controller 3 is operated will be described.

  Normally, the remote controller 3 and the headphones 2 are in a power saving standby state. When the operation switch 5 of the remote controller 3 is operated in this state, the operation information is accumulated in the data transmission unit 11 as data via the remote control unit 9. Then, the remote controller 3 enters a transmission standby state. Thereafter, when the user 1 wears the headphones 2, the electrode C is pushed toward the speaker unit 2a by the pressure at the time of wearing, and the start switch 19 is turned on.

  Here, as shown in the first and second embodiments, when the signal electrode D of the headphone 2 is provided on a surface that does not contact the user 1 (the outer surface of the speaker unit 2a), the user 1 can When the user is trying to wear it on the head, the headphone is worn while the palm of the user 1 is in contact with the signal electrode. Therefore, when the headphone 2 is attached and the start switch 19 is turned on, the palm of the user 1 is in contact with the signal electrode D. When the headphone 2 is attached, the data transmission unit of the headphone 2 is immediately An activation start signal is transmitted from 16 toward the data receiver 12 of the remote controller 3.

  Further, as shown in the third embodiment, when the signal electrode D of the headphone 2 is provided on the surface in contact with the user 1 (the inner surface of the speaker unit 2a), the finger holding the headphone 2 when worn is Simultaneously with the contact with the head of the user 1, the signal electrode D contacts the body of the user 1, the activation switch 19 is turned on, and the data transmission unit 16 of the headphone 2 to the data reception unit 12 of the remote controller 3. An activation start signal is transmitted.

  When this activation start signal is received by the data receiver 12 of the remote controller 3, the data that is in the transmission standby state by the data transmitter 11 of the remote controller 3 is instantaneously transmitted to the data receiver of the speaker unit 2 a. 17 is transmitted.

  According to the data communication system of the present embodiment, since the remote controller 3 transmits data to the headphones 2 after receiving the activation start signal of the activation switch 19, useless transmission for transmitting data to the headphones 2 is performed. The operation and useless reception operation of the data receiving unit 17 in the speaker unit 2a can be omitted, and the power consumption of the remote controller 3 can be suppressed.

(Embodiment 5)
Next, a fifth embodiment of the present invention will be described with reference to FIG. Unlike the first to fourth embodiments, the wireless communication system of the present embodiment is characterized in that the remote controller 3 issues an activation request signal for causing the headphones 2 to emit an activation start signal. Also in the present embodiment, as in the fourth embodiment, the remote controller 3 is provided with a data transmission unit 11 and a data reception unit 12, and the speaker unit 2a is provided with a data transmission unit 16 and a data reception unit 17. Thus, bidirectional communication is possible.

  Specifically, the case where the headphones 2 are worn after operating the remote controller 3 will be described. As in the fourth embodiment, the headphones 2 and the remote controller 3 are normally in a power saving standby state. Here, when the operation switch 5 of the remote controller 3 is operated, the operation information is stored as data in the data transmitter 11 of the remote controller 3.

  After operating the operation switch 5, the remote controller 3 transmits a start request signal to the data receiving unit 17 of the speaker unit 2a at regular intervals.

  Here, as shown in the first and second embodiments, when the signal electrode D of the headphone 2 is provided on a surface that does not contact the user 1 (the outer surface of the speaker unit 2a), the user 1 can When the user wants to wear it on the head, the headphone 2 is worn while the palm of the user 1 is in contact with the signal electrode D. Therefore, when the headphone 2 is worn, the palm of the user 1 is in contact with the signal electrode D, and when the headphone 2 is worn, the activation transmitted immediately from the data transmission unit 11 of the remote controller 3. The data receiving unit 17 of the speaker unit 2a receives the request signal.

  Further, as shown in the third embodiment, when the signal electrode D of the headphone 2 is provided on the surface in contact with the user 1 (the inner surface of the speaker unit 2a), the finger holding the headphone 2 when worn is At the same time that the user's 1 head is touched, the signal electrode D is brought into contact with the user's 1 body, and the activation request signal immediately transmitted from the data transmitter 11 of the remote controller 3 is sent to the data receiver of the speaker unit 2a. 17 receives.

  When the data reception unit 17 of the speaker unit 2a receives this activation request signal, the data transmission unit 16 of the speaker unit 2a transmits an activation start signal to the data reception unit 12 of the remote control operation unit 3, and the remote control operation unit When the data receiving unit 12 of 3 receives the start signal, the data transmitting unit 11 of the remote controller 3 transmits the signal to the data receiving unit 17 of the speaker unit 2a.

  According to this embodiment, the power consumption of the entire system can be suppressed without providing the start switch 19 as in the fourth embodiment.

(Embodiment 6)
Next, a sixth embodiment of the present invention will be described with reference to FIG. A feature of the wireless communication system of the present embodiment is that the remote controller 3 is provided with an interface unit 21 capable of transmitting and receiving data to and from the portable device 20 such as a cellular phone.

  Although the operation switch 5 is provided in the remote controller 3 of the first to fifth embodiments, the operation switch 5 is not provided in the remote controller 3 of the present embodiment, and an interface unit 21 is provided instead. It has been. A mobile device 20 such as a mobile phone is connected to the interface unit 21. When the operation button of the portable device 20 is operated, the operation information is transmitted to the remote controller 3 via the interface unit 21. That is, the operation switch 5 provided on the remote controller 2 itself is used as an operation button of the portable device 20.

  When an operation is performed with the operation button of the portable device 20, the operation information is transmitted as data to the remote controller 3 via the interface unit 21. The operation information is displayed on the display unit of the mobile device 20. In this state, when the user 1 touches his / her skin with a finger, data is transmitted to the data receiving unit 17 of the headphones 2.

  Conversely, when data is transmitted from the data transmission unit 16 of the headphone 2 to the data reception unit 12 of the remote controller 3, the data received by the data receiver 12 of the remote controller 3 is transmitted via the interface unit 21. To the portable device 20. Then, data information is displayed on the display unit of the mobile device 20.

  According to the present embodiment, by using the operation buttons and the display unit of the portable device 20, it is not necessary to provide the operation switch 5 and the display unit 6 on the remote controller 3 itself, and the cost can be reduced.

  In the present embodiment, the mobile device 20 is externally attached to the remote controller 3, but the remote controller 3 may be incorporated into the mobile device 20 and integrated. In this case, the user 1 operates the portable device 20 by holding it. Therefore, the signal electrode A and the reference electrode B are provided in a part that contacts the palm of the portable device 20.

It is the schematic which showed the use condition of the data communication system of this Embodiment 1. FIG. (A) is the front view which showed the surface of the remote control operator same as the above, (b) is the front view which showed the back surface of the remote control operator same as the above. It is the block diagram which showed the internal structure of the remote control operating device same as the above. It is the block diagram which showed the internal structure of the headphone same as the above. It is explanatory drawing which showed Embodiment 2 of this invention. It is explanatory drawing which showed Embodiment 3 of this invention. It is explanatory drawing which showed Embodiment 4 of this invention. It is explanatory drawing which showed Embodiment 4 of this invention. It is explanatory drawing which showed Embodiment 5 of this invention. It is explanatory drawing which showed Embodiment 6 of this invention. It is the figure which showed the conventional data communication system.

Explanation of symbols

1 Human body (user)
2 headphones (equipment for wearing)
3 Remote controller (communication equipment)
5 Operation switch 6 Display unit 8 First communication electrode 13 Second communication electrode 11, 16 Data transmission unit 12, 17 Data reception unit 19 Start switch 20 Portable device 21 Interface unit A, D Signal electrode B, C Reference electrode

Claims (8)

A wearable device to be worn on the user's body, and a communication device that is held by the user and communicates data with the wearable device,
The communication device is provided with a data transmission unit for transmitting data and a first communication electrode in contact with the user's body, and the mounting device has a data reception unit for receiving data transmitted from the data transmission unit And a second communication electrode that is in contact with the user's body, each of the first communication electrode and the second communication electrode includes two electrodes that are in contact with each other,
The data transmission unit transmits data using the human body as a transmission path via the first communication electrode, and the data reception unit receives the data via the second communication electrode, thereby A data communication system that transmits and receives data to and from a communication device. The two electrodes of the first communication electrode are disposed at positions where the user contacts the user's body when the user holds the communication device.
The two electrodes of the second communication electrode are arranged at a position where one electrode comes into contact with the user when the user wears the wearing device, and the other electrode does not come into contact with the user's body. 2. The data communication system according to claim 1, wherein the data communication system is arranged at a position. The two electrodes of the first communication electrode are disposed at positions where the user contacts the user's body when the user holds the communication device.
2. The data according to claim 1, wherein the two electrodes of the second communication electrode are arranged at positions where they come into contact with the user's body when the user wears the wearing device. Communications system.   3. The wearing device is a headphone, and the other electrode of the second communication electrode is provided at a position located substantially in the center of the user's head in the headphone. Data communication system.   The communication device is provided with a data receiving unit, the wearing device is provided with a data transmitting unit, and the data transmitting unit of the wearing device receives data using the human body as a transmission path via the second communication electrode. The data reception unit of the communication device transmits and receives data through the first communication electrode, thereby transmitting and receiving data between the mounting device and the communication device. 5. The data communication system according to any one of 4 to 4.   6. The data communication system according to claim 5, wherein the mounting device has an activation switch that transmits an activation start signal for starting transmission of data from the data transmission unit of the communication device to the data reception unit of the communication device.   The communication device constantly sends a start request signal for requesting the mounting device to output a start signal for starting data transmission from the data transmission unit of the communication device from the mounting device to the communication device. 6. The data communication system according to claim 5, further comprising means for performing at periodic intervals. 8. The data communication system according to claim 1, wherein the communication device includes an interface unit that transmits and receives data to and from the control unit of the portable device.

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