JP2007028028A - Portable information terminal device and external device for it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily connect an external device for a portable information terminal device such as a display device, a loudspeaker device or the like, and the portable information terminal device; and to improve a usability under the state in which the external device and the portable information terminal device are connected. <P>SOLUTION: The portable information terminal device 1 has a first connecting terminal 171, and the display device 2 has second connecting terminals 271 and 272 and a third connecting terminal 273 outputting an input signal as it is. The portable terminal 1 and the display device 2 can be connected easily by connecting the first connecting terminal 171 and the second connecting terminal 271, while the external device for another portable information terminal device can be connected to the third connecting terminal 273. A power supply for the display device 2 is turned on by a power-on signal input from the portable terminal 1 through the first connecting terminal 171, and an image by a television broadcasting received at the portable terminal 1 can be displayed on the display device 2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a portable information terminal device having at least a telephone function and a television broadcast receiving function, and an external device for a portable information terminal device used by being connected to the portable information terminal device.

  Mobile information terminal devices (hereinafter also referred to as “mobile terminals”) represented by mobile phones that have rapidly spread in recent years have become highly functional and multifunctional with the progress of integration technology of electronic circuits such as LSI, A variety of information can be handled by a single mobile terminal. For this reason, the information handled by the user with the mobile terminal is becoming more complex and larger, and there is an increasing demand for displaying more information at a time. In addition, mobile terminals equipped with a television broadcast receiving function have been put into practical use, and it has become possible to view television on mobile terminals. Requests are also born. In order to meet such demands, display screens provided in portable terminals have been increased in screen size and definition.

  In addition, digital television broadcasting such as terrestrial digital broadcasting has been started, and it has become possible to view clear television broadcasting with less noise than conventional analog television broadcasting. In terrestrial digital broadcasting, the frequency band of 6 MHz, which is one channel of conventional analog broadcasting, is 13 bands, that is, 13 OFDM segments (OFDM: Orthogonal Frequency Division Multiplex), which is one of the systems for transmitting digitized information. Television transmission is performed by setting transmission parameters and information to be transmitted for each segment. For this reason, in digital terrestrial broadcasting, it is possible to broadcast a high-definition broadcast or a combination of a plurality of standard television broadcasts and data broadcasts on one channel. One of the 13 segments is allocated to a television broadcast intended for reception during movement. In a television broadcast using this one segment, so-called “one segment broadcast”, movement is performed. Even with reception in the middle, it is possible to view a clear image with little noise such as flicker.

  Therefore, a mobile terminal capable of receiving digital broadcasting such as one-segment broadcasting can view clear images even while moving. Since a clear image with less noise can be displayed more powerfully by enlarging the screen, there is an increasing demand for a larger screen.

  However, in order not to impair the portability of the mobile terminal, it is necessary to limit the size of the mobile terminal itself. Therefore, the size of the display unit is naturally limited, and the demand for viewing on a larger screen is met. That was difficult.

Therefore, a technology relating to a mobile phone in which an enlarged display unit composed of a liquid crystal panel having a display area at least twice as large as the display unit provided in the main body can be detachably attached to the upper or lower part of the main body is disclosed (for example, (See Patent Document 1).
JP 2001-298517 A

  According to the above-described conventional technology, the mobile phone and the enlarged display unit can be detachably mounted, so that the display area is larger than the display unit provided in the mobile phone body without impairing the portability of the mobile phone. An image can be displayed on a large enlarged display portion.

  However, in the above-described prior art, since the enlarged display unit is mounted on the upper or lower part of the mobile phone, the user can easily view the image displayed on the enlarged display unit of the mobile phone on which the enlarged display unit is mounted. There was a problem that it was difficult to put it on a desk or the like in a state. For this reason, in order for the user to view the image displayed on the enlarged display unit, for example, the user must hold the mobile phone in his / her hand, which is inconvenient.

  In addition, in the above-described conventional technology, since sound can be emitted only from a speaker provided in the mobile phone body, if you want to view with higher sound, audio is output to an audio output terminal such as an earphone jack provided in the mobile phone. The speaker had to be connected via a signal transmission cord, which was inconvenient.

  The present invention has been made in view of such problems, and can be easily connected to an external device for a portable information terminal device such as a display device or a speaker device, and improves usability in a state in which they are connected. It is an object to provide a portable information terminal device that can be used and an external device for a portable information terminal device that is used by being connected to the portable information terminal device.

  A portable information terminal device according to the present invention is a portable information terminal device having at least a telephone function and a television broadcast receiving function, and is used for a key unit for input operation composed of a plurality of keys and a telephone. An antenna that transmits and receives radio waves used in television broadcasting, a communication unit that transmits and receives call signals via the antenna, a tuner that receives television broadcasting via the antenna, And at least a first connection terminal for outputting a video signal by television broadcasting received by a tuner.

  With this configuration, it becomes possible to easily connect an external device for a portable information terminal device having a connection terminal connectable to the first connection terminal, for example, a display device for viewing a television broadcast, Usability can be improved.

  In addition, the first connection terminal may be configured to output together an audio signal by television broadcasting received by the tuner. According to this configuration, it is possible to easily connect an external device for a portable information terminal device having a connection terminal connectable to the first connection terminal, for example, a speaker device for viewing a television broadcast. It becomes possible to improve usability.

  Further, the first connection terminal may be configured to output a power-on signal for starting the operation of the external device connected to the first connection terminal. According to this configuration, the connection terminal is connectable to the first connection terminal, and the power is turned on by a power-on signal input from the portable information terminal device via the first connection terminal. By simply connecting an external device for a portable information terminal device, such as a display device or a speaker device, to the portable information terminal device, the external device for the portable information terminal device can be turned on. It becomes possible to improve.

  Further, the first connection terminal is a male connection terminal, and is provided so as to be storable in a casing constituting the portable information terminal device, and further includes a switch for storing the first connection terminal in the casing. It is good. According to this configuration, the first connection terminal, which is a male connection terminal, can be accommodated in the housing by operating the switch, and the usability can be further improved.

  The external device for a portable information terminal device of the present invention is an external device for a portable information terminal device that is used by being connected to the portable information terminal device, and is provided on one side surface of a housing forming the device. , A second connection terminal connectable to the first connection terminal provided in the portable information terminal device, and the portable terminal via the first connection terminal and the second connection terminal connected to the first connection terminal. And an operation unit that operates in response to a signal input from the type information terminal device. With this configuration, an external device for a portable information terminal device that operates according to a signal output from the portable information terminal device can be detachably attached to the portable information terminal device, thereby improving usability. Is possible.

  The second connection terminal has a shape substantially equivalent to that of the first connection terminal, and is provided on a surface of the casing that forms the device on the side opposite to the side surface on which the second connection terminal is provided. It is good also as a structure further provided with the 3rd connection terminal which outputs the signal input from. According to this configuration, a plurality of portable information terminal device external devices can be connected to the portable information terminal device, and the usability can be further improved.

  Further, the operation unit may be configured to start operation upon receiving a power-on signal input from the second connection terminal. According to this configuration, simply by connecting the external device for the portable information terminal device to the portable information terminal device, the power source of the external device for the portable information terminal device can be powered by the power-on signal output from the portable information terminal device. The operation can be started and the usability can be further improved.

  Moreover, it is good also as a structure further provided with the support part provided in the back surface of the housing | casing which comprises an apparatus so that accommodation was possible. According to this configuration, the external device for the portable information terminal device can be placed on the desk or the like by the support portion in a self-standing manner. For example, the user can place the display device on the desk so that the image can be easily viewed. Actions and the like can be facilitated, and usability can be further improved.

  Further, the third connection terminal may be a male connection terminal, and may be provided so as to be housed in a housing constituting the apparatus, and further provided with a switch for housing the third connection terminal in the housing. According to this configuration, the third connection terminal, which is a male connection terminal, can be stored in the housing by operating the switch, and the usability can be further improved.

  Further, a configuration may be adopted in which a display panel for displaying an image is provided, and the operation unit is a panel drive unit that controls the display panel based on a video signal input from the second connection terminal to display an image. According to this configuration, it becomes possible to display, for example, an image by television broadcasting received by the portable information terminal device on the display device which is an external device for the portable information terminal device, and further ease of use. It becomes possible to improve.

  Alternatively, a speaker may be provided, and the operation unit may be configured as a speaker driving unit that generates sound by controlling the speaker based on an audio signal input from the second connection terminal. According to this configuration, the speaker device, which is an external device for the portable information terminal device, can be made to generate, for example, audio from a television broadcast received by the portable information terminal device, and the usability is further improved. It becomes possible to improve.

  ADVANTAGE OF THE INVENTION According to this invention, the external apparatus for portable information terminal devices, such as a display apparatus and a speaker apparatus, and a portable information terminal device can be connected easily, and the usability in the state which connected them can be improved. It is possible to provide a portable information terminal device that can be used and an external device for a portable information terminal device that is used by being connected to the portable information terminal device.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(Embodiment 1)
FIG. 1 is a front view and a side view of a mobile terminal 1 according to Embodiment 1 of the present invention, FIG. 1 (a) is a front view of the mobile terminal 1, and FIG. 1 (b) is a mobile terminal 1. FIG. 1C is a side view of the portable terminal 1 viewed from the direction B in FIG. 1A. 2A and 2B are perspective views of the mobile terminal 1 according to Embodiment 1 of the present invention as viewed from the right and left.

  As shown in FIG. 1 and FIG. 2, the portable terminal 1 according to the first embodiment of the present invention is a key unit for input operation comprising a plurality of keys including a numeric keypad that can input numbers from 0 to 9 at least. 111, a microphone (hereinafter abbreviated as “microphone”) 121 that is arranged at the bottom of the main body of the mobile terminal 1 and used during a call, a display panel 131 that displays images, characters, and the like, and a speaker for calls 141, the antenna 151, and the 1st connection terminal 171 which consists of a male connection terminal provided in the left side upper part toward the front of the portable terminal 1. FIG.

  The portable terminal 1 can switch and use a plurality of functions including at least a telephone function and a television broadcast receiving function. For example, when the portable terminal 1 is used as a telephone, the key unit 111 is used. When the function of the portable terminal 1 is switched to the telephone function by the operation of and the portable terminal 1 is used as a television receiver, the function of the portable terminal 1 can be switched to the television reception function by the operation of the key unit 111. . When the function of the portable terminal 1 is switched to the telephone function, it can be used as a portable telephone such as operating the key unit 111 to input a telephone number and talking with the other party. In addition, when the function of the mobile terminal 1 is switched to the television reception function, the desired channel number is input by operating the key unit 111, and the TV of the channel is received by the antenna 151 and the tuner built in the mobile terminal 1. It can be used as a television receiver that receives John broadcasting.

  Further, by providing the first connection terminal 171, an external device for a portable information terminal device such as a display device or a speaker device provided with a connection terminal connectable to the first connection terminal 171 is connected to the mobile terminal 1. Details thereof will be described later.

  FIG. 3 is a block diagram showing the configuration of the mobile terminal 1 according to Embodiment 1 of the present invention.

  As shown in FIG. 3, the mobile terminal 1 controls the entire mobile terminal 1 and performs signal processing for realizing various functions provided in the mobile terminal 1, and an input operation Key section 111, input operation receiving section 110 that receives an input operation performed on the key section 111, a microphone 121 for sound collection, and an audio signal processing section 120 that performs signal processing on an audio signal output from the microphone 121. , A display panel 131 for displaying images, characters, and the like, and a signal for displaying characters, images, and the like output from the main control unit 100 (hereinafter, signals for displaying on the display panel are collectively referred to as a “video signal”. Based on the audio signal output from the panel drive unit 130 for driving the display panel 131, the speaker 141, and the main control unit 100. A speaker drive unit 140 for driving the car 141, an antenna 151, a communication unit 150 for transmitting and receiving a signal for a call via the antenna 151, and a television signal from a television broadcast signal received by the antenna 151. A tuner 160 to be taken out, a first connection terminal 171 for outputting various signals such as video signals output from the main control unit 100 to the outside of the portable terminal 1, and temporary data used for processing of the main control unit 100 A storage unit 180 that stores memory and a telephone number registered by a user, and a battery 190 that supplies power to each block of the mobile terminal 1 are provided.

  As shown in FIGS. 1 and 2, the key unit 111 for input operation includes a plurality of keys including a numeric keypad that can input numbers of at least 0 to 9, and the user selects the key unit 111. Operation is performed to input numbers, characters, etc., or to switch functions of the mobile terminal 1. The input operation accepting unit 110 accepts an input operation performed on the key unit 111 and outputs an electric signal indicating which key is pressed to the main control unit 100.

  As shown in FIGS. 1 and 2, the microphone 121 is arranged at the lower part of the main body of the mobile terminal 1, and collects voices and the like emitted from the user when the telephone function of the mobile terminal 1 is used, for example. And converted into an audio signal and output. The audio signal processing unit 120 converts the audio signal output from the microphone 121 into a signal in a format that can be handled by the main control unit 100, for example, a signal that converts the audio signal into a digital signal when the main control unit 100 performs digital signal processing. Processing is performed and output to the main control unit 100.

  The display panel 131 includes a commonly used liquid crystal display panel, EL (Electro Luminescent Display), or the like, and displays images, characters, and the like. The panel driving unit 130 drives the display panel 131 based on the video signal output from the main control unit 100 to display images, characters, and the like.

  As shown in FIGS. 1 and 2, the speaker 141 is arranged on the upper part of the main body of the mobile terminal 1 and emits sound based on an audio signal output from the main control unit 100. The speaker drive unit 140 notifies a signal output from the main control unit 100 for voice, for example, a voice signal sent from the other party when the telephone function of the mobile terminal 1 is used or a call is made. The speaker 141 is driven to generate sound based on a signal for a ringing tone or the like (hereinafter, signals for generating sound from the speaker are collectively referred to as “audio signal”).

  The antenna 151 has a function of receiving radio waves used for television broadcasting and a function of transmitting / receiving radio waves used for portable telephones. And the communication part 150 transmits / receives the signal for the telephone call with the other party via the antenna 151, when the telephone function of the portable terminal 1 is used. In addition, when the television broadcast reception function of the mobile terminal 1 is used, the tuner 160 extracts and outputs the television signal of the channel set by the user from the television broadcast signal received by the antenna 151. To do. In the first embodiment of the present invention, the broadcasting method of the television signal that can be received by the tuner 160 is not limited to any one of the methods, but for example, digital broadcasting such as terrestrial digital broadcasting or one-segment broadcasting described above. It may also be analog television broadcasting that has been used so far.

  The main control unit 100 controls the entire mobile terminal 1 and performs signal processing for realizing various functions provided in the mobile terminal 1, for example, a function as a telephone or a function as a television receiver. . Switching between these functions is performed by an input operation to the key unit 111.

  For example, when an input operation for selecting a telephone function is performed by the key unit 111, the input operation reception unit 110 receives the input operation performed by the key unit 111, and the main control unit 100 outputs from the input operation reception unit 110. The telephone function is switched immediately upon receiving the signal. Then, the main control unit 100 makes a call to the telephone number input from the key unit 111 via the communication unit 150 and the antenna 151, and when the other party having the telephone number responds to the call, A voice signal based on a voice from a user input through the microphone 121 and the voice signal processing unit 120 is transmitted from the antenna 151 to the call partner via the communication unit 150, transmitted from the call partner, and received by the communication unit 150 and the antenna 151. The mobile terminal 1 is caused to function as a telephone, for example, by generating a voice signal from the speaker 141 via the speaker driving unit 140.

  Alternatively, when an input operation for selecting the television reception function is performed by the key unit 111, the input operation reception unit 110 receives the input operation performed by the key unit 111, and the main control unit 100 performs the input operation reception unit 110. Immediately upon receiving the signal output from, it switches to the television reception function. The main control unit 100 changes the reception frequency of the tuner 160 based on the channel number input from the key unit 111, decodes the television signal received by the tuner 160 via the antenna 151, and outputs a video signal and an audio signal. The portable terminal 1 is caused to function as a television receiver by converting it into a signal and outputting it.

  The various functions provided in the mobile terminal 1 may be realized by hardware, or each function is described so as to be realized by software and executed by an arithmetic device or the like. Also good. When each function is realized by software, the main control unit 100 can be configured using a computer loaded with a program for realizing each functional block described above in an arithmetic unit.

  The storage unit 180 is a generally known recording device such as a recording device such as an HDD (Hard Disk Drive) that records information using magnetism or a recording device that records information using a semiconductor memory. A user who consists of a device and uses preset information such as a signal pattern for generating a ring tone and channel information for television broadcasting, information temporarily used during operation of the main control unit 100, or a telephone number. The information etc. registered at any time is stored.

  The battery 190 is a rechargeable secondary battery such as a commonly used lithium ion battery or nickel metal hydride battery, and supplies power to each block of the mobile terminal 1. In the first embodiment of the present invention, the battery 190 is not limited to a secondary battery, and may be, for example, a dry battery or a fuel cell. Alternatively, a configuration using electric power supplied from a commercial power supply via an AC adapter or the like may be used.

  As shown in FIGS. 1 and 2, the first connection terminal 171 is a male connection terminal, is provided on the left side upper portion toward the front of the mobile terminal 1, and is output from the main control unit 100. A video signal, an audio signal, and a power-on signal for turning on a display device or a speaker device connected to the mobile terminal 1 are output to the outside of the mobile terminal 1. Note that this power-on signal is merely a signal for turning on the power of the display device or speaker device connected to the portable terminal 1, so that the ground potential and a predetermined constant voltage value (for example, 1.5 (V The binary signal represented by the switching to) degree) may be used.

  FIG. 4 is an enlarged perspective view of the first connection terminal 171 provided in the mobile terminal 1 according to Embodiment 1 of the present invention.

  The first connection terminal 171 is a male connection terminal, and as shown in FIG. 4, a metal plate made of a metal having high conductivity such as copper or aluminum is formed into a cylindrical shape, and is formed into a plurality of concentric circles having different radii. It is formed by providing in the shape. A plurality of concentric metal plates that are cylindrical and have different radii have a ground potential (hereinafter abbreviated as “GND”), an audio signal, a GND, a video signal, a power, in order from the outside. An on signal is assigned. Thus, by providing GND between the audio signal and the video signal, crosstalk between the audio signal and the video signal can be suppressed. In addition, since an output circuit (not shown) for outputting an audio signal or a video signal outputs a signal with a low output impedance, if the output part accidentally touches a conductor having a low impedance, the output circuit Overcurrent may cause problems. Therefore, by using GND as the outermost metal piece that is most likely to come into contact with something, the possibility of such a problem occurring is reduced.

  In the first embodiment of the present invention, the first connection terminal 171 is not limited to the connection terminal having the configuration shown in FIG. For example, a male connection terminal may be formed by thinly extending and superposing insulators such as vinyl chloride on a metal plate and providing them in a cylindrical shape with a plurality of concentric circles having different radii. Thereby, the insulation between each signal can be improved. Or, instead of concentric circles, a male terminal is formed by providing a metal terminal in the shape of a pin like the S terminal used in video equipment such as S-VHS that outputs color signals and luminance signals separately. May be. Alternatively, a female connection terminal may be used instead of a male connection terminal. However, in the case where the first connection terminal 171 is constituted by a female connection terminal, the connection terminal connected to the first connection terminal 171 needs to be a male type.

  As described above, the mobile terminal 1 according to Embodiment 1 of the present invention has a plurality of functions including at least a telephone function and a television reception function, and can be used by switching them. In addition, various signals such as video signals and audio signals output from the main control unit 100 are output from the first connection terminal 171, and a display device or speaker having a connection terminal connectable to the first connection terminal 171. An external device for a portable information terminal device such as a device can be connected to the mobile terminal 1, and various signals can be input to the external device via the first connection terminal 171.

  FIG. 5 is a front view, a side view, and a perspective view of display device 2 that is the external device for the portable information terminal device according to Embodiment 1 of the present invention. 5 (a) is a front view of the display device 2, and FIG. 5 (b) is a side view of the display device 2 viewed from the direction A in FIG. 5 (a). ) Is a side view of the display device 2 viewed from the direction B in FIG. 5A, and FIGS. 5D and 5E are perspective views of the display device 2 viewed from the right and left. .

  As shown in FIG. 5, the display device 2 that is the external device for the portable information terminal device according to the first embodiment of the present invention includes a display panel 200 and upper and lower portions on the right side face toward the front of the display device 2. The second connection terminals 271 and 272, each of which is provided with a female connection terminal, and the side opposite to the side surface on which the second connection terminals 271 and 272 are provided, that is, toward the front surface of the display device 2. And a third connection terminal 273 made of a male connection terminal provided at the upper part of the left side surface.

  In the first embodiment of the present invention, the display device 2 is formed so that the height of the display device 2 and the height of the mobile terminal 1 are substantially equal, and the second connection terminal 271 is provided in the mobile terminal 1. The first connection terminal 171 is attached at a position that is substantially the same height. As a result, when the first connection terminal 171 provided in the mobile terminal 1 and the second connection terminal 271 provided in the display device 2 are connected, the connection occurs between the mobile terminal 1 and the display device 2. The step in the height direction can be reduced, and the appearance when the display device 2 is connected to the portable terminal 1 can be improved. In addition, the third connection terminal 273 is attached at a position that is substantially the same height as the first connection terminal 171 provided in the mobile terminal 1. As a result, when an external device for portable information terminal device is further connected to the third connection terminal 273 provided in the display device 2, the connection portion between the display device 2 and the external device for portable information terminal device is connected. The generated height difference can be reduced, and the appearance when an external device for a portable information terminal device is further connected to the display device 2 can be improved. Here, the “height” is the length in the longitudinal direction of the mobile terminal 1 shown in FIG. 1, and in the side view of the display device 2 shown in FIGS. 5 (b) and 5 (c). It is the length in the longitudinal direction.

  FIG. 6 is a block diagram showing a configuration of display device 2 that is an external device for the portable information terminal device according to Embodiment 1 of the present invention.

  As shown in FIG. 6, the display device 2 drives the display panel 200 based on a display panel 200 that displays an image, characters, and the like and a video signal input from the second connection terminal 271 or 272 to display an image. The panel drive unit 230 to be displayed and the second connection terminals 271 and 272 that can be connected to the first connection terminal 171 included in the mobile terminal 1, and signals input from the second connection terminals 271 and 272 A third connection terminal 273 for outputting to the outside of the display device 2 and a battery 290 for supplying power to each block of the display device 2 are provided.

  The display panel 200 includes a commonly used liquid crystal display panel, EL, or the like, and displays images, characters, and the like. Further, the display panel 200 is formed by a display panel having a display area larger than that of the display panel 131 provided in the mobile terminal 1, and can display an image larger than that displayed on the display panel 131. it can. The panel driving unit 230, which is an operation unit, starts its operation after receiving the power-on signal input from the second connection terminal 271 or 272, and is input from the second connection terminal 271 or 272. The display panel 200 is driven based on the incoming video signal to display images, characters, and the like.

  The battery 290 is a rechargeable secondary battery such as a commonly used lithium ion battery or nickel hydride battery, and supplies power to each block of the display device 2. In Embodiment 1 of the present invention, the battery 290 is not limited to a secondary battery, and may be, for example, a dry battery or a fuel cell. Alternatively, a configuration using electric power supplied from a commercial power supply via an AC adapter or the like may be used.

  As shown in FIG. 5, the second connection terminals 271 and 272 include female connection terminals provided at the upper and lower portions of the right side surface toward the front of the display device 2, and are provided in the mobile terminal 1. The first connection terminal 171 can be connected. In addition, since the same signal lines of the second connection terminals 271 and 272 are electrically connected to each other, the first connection terminal 171 can be connected to either the second connection terminal 271 or 272. Various signals output from the mobile terminal 1 can be similarly input to the display device 2.

  As shown in FIG. 5, the third connection terminal 273 is a male connection terminal provided at the upper part of the left side surface toward the front of the display device 2, and the second connection terminals 271, 272 and The signal is electrically connected and the signal input from the second connection terminal 271 or 272 is output to the outside of the display device 2 as it is.

  In addition, by providing an output circuit that receives a signal with high impedance and outputs the signal with low impedance between the second connection terminals 271, 272 and the third connection terminal 273, the second connection terminal 271, The signal input from the terminal 272 may be output from the third connection terminal 273 via the output circuit.

  FIG. 7 is an enlarged perspective view of the second connection terminal 271 provided in the display device 2 that is the external device for the portable information terminal device according to Embodiment 1 of the present invention.

  The second connection terminal 271 is a female connection terminal, and as shown in FIG. 7, an insulator such as vinyl chloride is thinly extended on a metal plate made of a metal having high conductivity such as copper or aluminum and overlapped. These are formed in a cylindrical shape by providing a plurality of concentric grooves having a plurality of concentric circles each having a different radius. Then, GND, an audio signal, GND, a video signal, and a power-on signal are assigned to the plurality of grooves provided concentrically in order from the outside so as to be in the same order as the first connection terminal 171. Yes. Further, the respective radii and depths of the concentric grooves provided in the second connection terminal 271 are provided in a plurality of concentric circles having different radii in the first connection terminal 171 shown in FIG. The size is set such that each cylindrical metal plate can be inserted properly. Then, the first connection terminal 171 is inserted into the second connection terminal 271 so that the mobile terminal 1 and the display device 2 are electrically connected to each other.

  Note that the second connection terminal 272 has substantially the same shape as the second connection terminal 271, and thus description thereof is omitted. In addition, the third connection terminal 273 has substantially the same shape as the first connection terminal 171 provided in the mobile terminal 1, and thus the description thereof is omitted.

  In the first embodiment of the present invention, the second connection terminal 271 is not limited to the configuration shown in FIG. For example, two metal plates made of a metal having high conductivity such as copper and aluminum are stacked, and an insulator such as vinyl chloride is thinly sandwiched between the metal plates to form a cylindrical shape. It is good also as a structure which provides a several concentric groove | channel by making it concentric. In this case, electrical connectivity between the first connection terminal 171 and the second connection terminal 271 can be improved while ensuring insulation between different signals. Further, when the first connection terminal 171 is a connection terminal provided with a metal terminal in a pin shape such as an S terminal, the second connection terminal 271 is shaped so that the connection terminal can be inserted. When the connection terminal 171 is a female connection terminal, the second connection terminal 271 can be connected to the first connection terminal 171, for example, the second connection terminal 271 is a male connection terminal. If it is.

  As described above, the display device 2 that is the external device for the portable information terminal device according to the first embodiment of the present invention can be connected to the first connection terminal 171 provided in the mobile terminal 1. The display device 2 is electrically connected to the mobile terminal 1 by connecting the second connection terminal 271 or 272 and the first connection terminal 171. Then, the power of the display device 2 is turned on by a power-on signal output from the mobile terminal 1 via the first connection terminal 171, and the second connection terminal is output from the mobile terminal 1 via the first connection terminal 171. Based on the video signal input from 271 or 272, the panel driving unit 230 as an operation unit drives the display panel 200 to display an image.

  FIG. 8 is a front view, a side view, and a perspective view of speaker device 3 that is an external device for a portable information terminal device according to Embodiment 1 of the present invention. 8 (a) is a front view of the speaker device 3, and FIG. 8 (b) is a side view of the speaker device 3 viewed from the direction A in FIG. 8 (a). ) Is a side view of the speaker device 3 viewed from the direction B in FIG. 8A, and FIGS. 8D and 8E are perspective views of the speaker device 3 viewed from the right and left. .

  As shown in FIG. 8, speaker device 3 that is an external device for a portable information terminal device according to Embodiment 1 of the present invention is provided on speaker 300 and on the upper side on the right side toward the front of speaker device 3. A second connection terminal 371 composed of a female connection terminal and a surface opposite to the side surface on which the second connection terminal 371 is provided, that is, provided on the upper portion of the left side surface facing the front of the speaker device 3. And a third connection terminal 372 made of a male connection terminal.

  In Embodiment 1 of the present invention, the speaker device 3 is formed so that the height of the speaker device 3 and the height of the mobile terminal 1 are substantially equal, and the second connection terminal 371 is provided in the mobile terminal 1. The first connection terminal 171 is attached at a position that is substantially the same height. As a result, when the first connection terminal 171 provided in the mobile terminal 1 and the second connection terminal 371 provided in the speaker device 3 are connected, the connection occurs between the mobile terminal 1 and the speaker device 3. The step in the height direction can be reduced, and the appearance when the speaker device 3 is connected to the portable terminal 1 can be improved. Further, the height of the speaker device 3 and the height of the display device 2 are substantially equal, and the third connection terminal 273 provided in the display device 2 is substantially equal to the first connection terminal 171 provided in the mobile terminal 1. When the third connection terminal 273 provided in the display device 2 and the second connection terminal 371 provided in the speaker device 3 are connected to each other, the display device 2 and the speaker device are connected. 3 can be reduced in height and the appearance when the speaker device 3 is connected to the display device 2 can be improved. In addition, the third connection terminal 372 is attached at a position that is substantially the same height as the first connection terminal 171 provided in the mobile terminal 1. Accordingly, when the second connection terminal 271 provided in the display device 2 is connected to the third connection terminal 372 provided in the speaker device 3, the height generated at the connection portion between the speaker device 3 and the display device 2. The step in the vertical direction can be reduced, and the appearance when the display device 2 is connected to the speaker device 3 can be improved. Here, the “height” is the length in the longitudinal direction of the mobile terminal 1 shown in FIG. 1, and is the length in the longitudinal direction of the speaker device 3 shown in FIG.

  FIG. 9 is a block diagram showing a configuration of speaker device 3 that is an external device for the portable information terminal device according to Embodiment 1 of the present invention.

  As illustrated in FIG. 9, the speaker device 3 includes a speaker 300, a speaker driving unit 330 that generates sound by driving the speaker 300 based on an audio signal input from the second connection terminal 371, and the mobile terminal 1. The second connection terminal 371 that can be connected to the first connection terminal 171 included in the first connection terminal 171 and the third connection terminal for outputting a signal input from the second connection terminal 371 to the outside of the speaker device 3. 372 and a battery 390 that supplies power to each block of the speaker device 3.

  The speaker 300 is formed of a so-called flat speaker that is generally used. The speaker device 3 can be formed with a small thickness and can generate louder sound than the speaker 141 provided in the mobile terminal 1. Then, the speaker driving unit 330 as an operation unit starts its operation after receiving the power-on signal input from the second connection terminal 371, and converts the sound signal input from the second connection terminal 371 into an audio signal. First, the speaker 300 is driven to generate sound.

  The battery 390 includes a rechargeable secondary battery such as a lithium ion battery or a nickel hydride battery that is generally used, and supplies power to each block of the speaker device 3. In Embodiment 1 of the present invention, the battery 390 is not limited to a secondary battery, and may be, for example, a dry battery or a fuel cell. Alternatively, a configuration using electric power supplied from a commercial power supply via an AC adapter or the like may be used.

  As shown in FIG. 8, the second connection terminal 371 includes a female connection terminal provided at the upper part of the right side surface toward the front of the speaker device 3, and the first connection terminal 371 is provided in the mobile terminal 1. Connection to the connection terminal 171 is possible.

  As shown in FIG. 8, the third connection terminal 372 includes a male connection terminal provided at the upper part of the left side surface toward the front of the speaker device 3, and is electrically connected to the second connection terminal 371. The signal that is connected and input from the second connection terminal 371 is output to the outside of the speaker device 3 as it is.

  In addition, an input circuit that receives a signal with high impedance and outputs the signal with low impedance is provided between the second connection terminal 371 and the third connection terminal 372, and the like, and is input from the second connection terminal 371. The signal may be output from the third connection terminal 372 once through the output circuit.

  Note that the second connection terminal 371 has substantially the same shape as the second connection terminal 271 provided in the display device 2, and thus description thereof is omitted. In addition, the third connection terminal 372 has substantially the same shape as the first connection terminal 171 provided in the mobile terminal 1, and thus description thereof is omitted.

  Next, connection between the mobile terminal 1 and the external device for the portable information terminal device will be described.

  FIG. 10 is an explanatory diagram showing a state of connection between the mobile terminal 1 and the display device 2 that is an external device for the portable information terminal device according to Embodiment 1 of the present invention.

  As shown in FIG. 10, in the first embodiment of the present invention, the first connection terminal 171 provided in the mobile terminal 1 and the second connection terminal 271 provided in the display device 2 are connected. The portable terminal 1 and the display device 2 can be electrically connected. Then, the power of the display device 2 can be turned on by a power-on signal from the mobile terminal 1, and for example, an image by television broadcasting received by the mobile terminal 1 can be displayed on the display device 2.

  Further, in the first embodiment of the present invention, the height of the display device 2 and the height of the mobile terminal 1 are substantially equal, and the first connection terminal 171 provided in the mobile terminal 1 and the display device 2 are provided. Since the second connection terminal 271 is mounted at substantially the same height, the first connection terminal 171 provided in the portable terminal 1 and the second connection terminal 271 provided in the display device 2 are connected. In this case, as shown in FIG. 10B, the step in the height direction generated at the connection portion between the mobile terminal 1 and the display device 2 can be reduced to connect the mobile terminal 1 and the display device 2. It is possible to improve the appearance when the display device 2 is connected to the portable terminal 1.

  FIG. 11 is an explanatory diagram showing a state of connection between the mobile terminal 1 and the display device 2 that is an external device for the portable information terminal device according to Embodiment 1 of the present invention.

  As shown in FIG. 11, similarly to the configuration shown in FIG. 10, by connecting the first connection terminal 171 provided in the mobile terminal 1 and the second connection terminal 272 provided in the display device 2, The mobile terminal 1 and the display device 2 can be electrically connected. Then, the power of the display device 2 can be turned on by a power-on signal from the mobile terminal 1, and for example, an image by television broadcasting received by the mobile terminal 1 can be displayed on the display device 2.

  Further, in the first embodiment of the present invention, the connection portions of the first connection terminal 171 and the second connection terminals 271 and 272 are formed concentrically, so that, for example, the first connection terminal 171 and the first connection terminal 171 The mobile terminal 1 and the display device 2 can be relatively rotated while the two connection terminals 272 are connected. Since the second connection terminal 272 is attached to the lower part of the side surface of the display device 2, the first connection terminal 171 provided in the mobile terminal 1 and the second connection terminal 272 provided in the display device 2 11, for example, as shown in FIG. 11 (b), an angle that makes it easy to operate the key unit 111 of the mobile terminal 1 and to easily view an image displayed on the display device 2 when placed on a desk. Thus, the portable terminal 1 and the display device 2 can be connected.

  FIG. 12 is an explanatory diagram showing a state of connection between the mobile terminal 1 and the display device 2 and the speaker device 3 which are external devices for the portable information terminal device according to Embodiment 1 of the present invention.

  In the first embodiment of the present invention, the height of the display device 2 and the height of the speaker device 3 are substantially equal, and the third connection terminal 273 provided in the display device 2 and the second device provided in the speaker device 3. The connection terminal 371 is attached at substantially the same height. Therefore, when the third connection terminal 273 provided in the display device 2 and the second connection terminal 371 provided in the speaker device 3 are connected, as shown in FIG. The display device 2 and the speaker device 3 can be connected to each other by reducing the step in the height direction generated at the connection portion between the speaker device 3 and the speaker device 3, and the appearance when the speaker device 3 is connected to the display device 2 is improved. can do.

  Further, since the signal input to the second connection terminal 271 provided in the display device 2 is output as it is from the third connection terminal 273 provided in the display device 2, if the mobile terminal 1 is connected to the display device 2. By connecting the third connection terminal 273 provided in the display device 2 and the second connection terminal 371 provided in the speaker device 3, the mobile terminal 1 and the speaker device 3 are connected via the display device 2. Can be electrically connected. Thereby, the power of the display device 2 and the speaker device 3 can be turned on by the power-on signal from the mobile terminal 1, and for example, the display device 2 can display an image by the television broadcast received by the mobile terminal 1. Similarly, the received audio from the television broadcast can be output from the speaker device 3.

  FIG. 13 is an explanatory diagram showing a state of connection between the mobile terminal 1 and the display device 2 and the speaker device 3 which are external devices for the portable information terminal device according to Embodiment 1 of the present invention.

  In the first embodiment of the present invention, the height of the portable terminal 1 and the height of the speaker device 3 are substantially equal, and the first connection terminal 171 provided in the portable terminal 1 and the second provided in the speaker device 3. When the first connection terminal 171 provided in the portable terminal 1 and the second connection terminal 371 provided in the speaker device 3 are connected to each other, the connection terminal 371 is connected to the same height. As shown in FIGS. 13B and 13C, the step in the height direction generated at the connection portion between the portable terminal 1 and the speaker device 3 is reduced, and the portable terminal 1 and the speaker device 3 are connected. It is possible to improve the appearance when the speaker device 3 is connected to the portable terminal 1.

  Further, the height of the display device 2 and the height of the speaker device 3 are substantially equal, and the second connection terminal 271 provided in the display device 2 and the third connection terminal 372 provided in the speaker device 3 are substantially the same. Since the second connection terminal 271 provided in the display device 2 and the third connection terminal 372 provided in the speaker device 3 are connected to each other because the height is attached, FIG. As shown, the height difference generated in the connecting portion between the display device 2 and the speaker device 3 can be reduced to connect the display device 2 and the speaker device 3, and the speaker device 3 is connected to the display device 2. Appearance when connected can be improved.

  In addition, since the signal input to the second connection terminal 371 included in the speaker device 3 is output as it is from the third connection terminal 372 included in the speaker device 3, if the mobile terminal 1 is connected to the speaker device 3. By connecting the second connection terminal 271 provided in the display device 2 and the third connection terminal 372 provided in the speaker device 3, the portable terminal 1 and the display device 2 are connected via the speaker device 3. Can be electrically connected. Thereby, the power of the display device 2 and the speaker device 3 can be turned on by a power-on signal from the mobile terminal 1, and for example, an image by television broadcasting received by the mobile terminal 1 is displayed on the display device 2 and the same. The received audio from the television broadcast can be output from the speaker device 3.

  As described above, according to the first embodiment of the present invention, the mobile terminal 1 and the external device for the portable information terminal device such as the display device 2 and the speaker device 3 can be easily connected via the connection terminal. In addition, the external device for the portable information terminal device is turned on by the power-on signal from the portable terminal 1 together with the connection, and for example, an image by television broadcasting received by the portable terminal 1 is displayed on the display device 2 The sound of the television broadcast that has been received can also be output from the speaker device 3. Further, the external device for portable information terminal device such as the display device 2 and the speaker device 3 is configured such that the signal input from the second connection terminal is output as it is from the third connection terminal. It is also possible to continuously connect a plurality of external devices for portable information terminal devices.

  In the first embodiment of the present invention, an example has been described in which an image of a television broadcast received by the mobile terminal 1 is displayed on the display device 2 and an audio of the television broadcast also received by the speaker device 3 is generated. For example, if the mobile terminal 1 has a function for connecting to a network such as the Internet, the display of images, characters, etc. generated by connection to the network and the generation of sound are performed. If the mobile terminal 1 has a function of playing back video and audio stored in a storage medium such as a memory card, the mobile terminal 1 can display the played video and generate audio. It can be configured to display or generate information such as images and sounds to be handled on an external device for a portable information terminal device. That.

  In the first embodiment of the present invention, the display device 2 and the speaker device 3 have been described as external devices for a portable information terminal device. For example, a pointing device such as a mouse or an input device such as a keyboard is used as a portable device. An external device for an information terminal device may be used, or a storage device such as an HDD or a DVD may be used as an external device for a portable information terminal device. In the first embodiment of the present invention, the first connection terminal 171, the second connection terminals 271, 272, 371, and the third connection terminals 273, 372 receive video signals, audio signals, and power-on signals, respectively. Although the structure formed so that it can output was demonstrated, it is not limited to the structure at all, It is desirable to change the structure of those connection terminals based on the signal which the external apparatus for portable information terminal devices handles.

  In the first embodiment of the present invention, the first connection terminal 171 provided in the portable terminal 1 and the like, and the third connection terminals 273 and 372 provided in the display device 2 and the speaker device 3 are used. It is good also as a structure which can be accommodated in the housing | casing which forms an apparatus. FIG. 14 is an enlarged perspective view of another example of the first connection terminal 171 provided in the mobile terminal 1 according to Embodiment 1 of the present invention. For example, as shown in FIG. 14, a slide switch 172 is provided on the upper surface of the mobile terminal 1, and the first connection terminal 171 is accommodated in a housing forming the mobile terminal 1 in conjunction with the movement of the slide switch 172. You may comprise as follows. With such a configuration, for example, when an external device for a portable information terminal device such as the display device 2 and the portable terminal 1 are connected, the slide switch 172 is slid as shown in FIG. Thus, when the first connection terminal 171 protrudes from the mobile terminal 1 as a male connection terminal and the mobile terminal 1 is used alone, as shown in FIG. By sliding, the first connection terminal 171 can be accommodated in the housing forming the mobile terminal 1.

  In the first embodiment of the present invention, the configuration in which the first connection terminal 171 provided in the mobile terminal 1 is a male connection has been described. For example, the first connection terminal 171 is a female connection terminal. It may be configured to. In that case, the second connection terminals 271, 272, and 371 provided on the display device 2 and the speaker device 3 are male connection terminals, and the third connection terminals 273 and 372 provided on the display device 2 and the speaker device 3 are female. Connection terminal.

  Further, in the first embodiment of the present invention, as a configuration provided with a support portion that can be accommodated on the back surface of a casing forming an external device for a portable information terminal device such as the display device 2 and the speaker device 3. Also good. FIG. 15 is a perspective view of the display device 2 that is the external device for the portable information terminal device according to the first embodiment of the present invention, as viewed from the back. For example, as shown in FIG. 15, a configuration may be adopted in which a support portion 280 provided on the back surface of the display device 2 so as to be housed in the back surface of a housing forming the display device 2 may be provided. If it is such a configuration, when carrying it, as shown in FIG. 15 (a), the support portion 280 is housed on the back of the display device 2 and placed on the desk for use. As shown in FIG. 15B, by spreading the support portion 280, the display surface of the display device 2 can be placed independently on the desk in a state where the display surface is easy to see.

  Moreover, in Embodiment 1 of this invention, although the structure which provides the 1st connection terminal 171 in one side surface upper part of the portable terminal 1 was demonstrated, it is not limited to the structure at all, For example, a portable terminal The configuration may be such that the first connection terminal is provided in the middle or lower part of one side surface, or the first connection terminal may be provided on both side surfaces of the mobile terminal 1.

  According to the portable information terminal device and the portable information terminal device external device used by connecting to the portable information terminal device according to the present invention, the portable information terminal device external device such as a display device and a speaker device and the portable device. A portable information terminal device and a portable information terminal device used by connecting to the portable information terminal device can be easily connected to the information terminal device, and the usability in a state where they are connected can be improved. This is useful as an external device.

(A) is the front view of the portable terminal in Embodiment 1 of this invention, (b) is the same immediate view, (c) is the same side view Perspective view of the mobile terminal Block diagram showing the configuration of the mobile terminal An enlarged perspective view of a first connection terminal provided in the portable terminal (A) is the front view of the display apparatus which is the external apparatus for portable information terminal devices in Embodiment 1 of this invention, (b) is the side view, (c) is the side view, (d) is the perspective view Figure, (e) is the perspective view Block diagram showing the configuration of the display device An enlarged perspective view of a second connection terminal provided in the display device (A) is the front view of the speaker apparatus which is the external apparatus for portable information terminal devices in Embodiment 1 of this invention, (b) is the side view, (c) is the side view, (d) is the perspective view Figure, (e) is the perspective view Block diagram showing the configuration of the speaker device Explanatory drawing which shows the mode of a connection with the display apparatus which is the external device for portable information terminal devices in Embodiment 1 of this invention Explanatory drawing showing a state of connection between the portable terminal and the display device Explanatory drawing which shows the mode of a connection with the display apparatus and speaker apparatus which are the external devices for the portable terminal and portable information terminal devices Explanatory drawing which shows the mode of a connection with the portable terminal, the display apparatus, and the speaker apparatus An enlarged perspective view of another example of the first connection terminal provided in the portable terminal The perspective view which looked at the display apparatus which is the external apparatus for portable information terminal devices in Embodiment 1 of this invention from the back

Explanation of symbols

1 Portable information terminal device (mobile terminal)
2 Display device 3 Speaker device 100 Main control unit 110 Input operation receiving unit 111 Key unit 120 Audio signal processing unit 121 Microphone 130, 230 Panel drive unit 131, 200 Display panel 140, 330 Speaker drive unit 141, 300 Speaker 150 Communication unit 151 Antenna 160 Tuner 171 First connection terminal 172 Slide switch 180 Storage unit 190, 290, 390 Battery 271, 272, 371 Second connection terminal 273, 372 Third connection terminal 280 Support unit

Claims (11)

A portable information terminal device having at least a telephone function and a television broadcast receiving function,
A key part for input operation composed of a plurality of keys;
An antenna for transmitting and receiving radio waves used for telephones and receiving radio waves used for television broadcasting;
A communication unit that transmits and receives a signal for a call via the antenna;
A tuner for receiving a television broadcast via the antenna;
A portable information terminal device comprising: a first connection terminal that is provided on a side surface of a housing containing these components and outputs at least a video signal by television broadcasting received by the tuner. 2. The portable information terminal device according to claim 1, wherein the first connection terminal outputs an audio signal by television broadcasting received by the tuner together. The portable information according to claim 1 or 2, wherein the first connection terminal outputs a power-on signal for starting an operation of an external device connected to the first connection terminal. Terminal device. The first connection terminal is a male connection terminal, and is provided so as to be storable in a casing constituting the portable information terminal device, and further includes a switch for storing the first connection terminal in the casing. The portable information terminal device according to any one of claims 1 to 3, wherein the portable information terminal device is a portable information terminal device. An external device for a portable information terminal device used by being connected to the portable information terminal device according to any one of claims 1 to 4,
A second connection terminal provided on one side surface of a housing forming the device and connectable to the first connection terminal provided in the portable information terminal device;
And an operation unit that operates according to a signal input from the portable information terminal device via the first connection terminal and the second connection terminal connected to the first connection terminal. An external device for a portable information terminal device. The second connection terminal has a shape substantially equivalent to that of the first connection terminal, and is provided on a surface opposite to a side surface of the housing forming the device where the second connection terminal is provided. The external device for a portable information terminal device according to claim 5, further comprising a third connection terminal for outputting a signal input from the terminal. 7. The external device for a portable information terminal device according to claim 5, wherein the operation unit starts an operation in response to a power-on signal input from the second connection terminal. The external device for a portable information terminal device according to any one of claims 5 to 7, further comprising a support portion provided so as to be housed on a back surface of a casing constituting the device. The third connection terminal is a male connection terminal, and is provided so as to be housed in a housing constituting the apparatus, and further includes a switch for housing the third connection terminal in the housing. The external device for a portable information terminal device according to any one of claims 5 to 8. It has a display panel that displays images,
10. The panel drive unit according to claim 5, wherein the operation unit is a panel drive unit that drives the display panel based on a video signal input from the second connection terminal to display an image. 2. An external device for a portable information terminal device according to item 1. With speakers,
The said operation part is a speaker drive part which drives the said speaker based on the audio | voice signal input from the said 2nd connection terminal, and produces | generates an audio | voice, The any one of Claims 5-9 characterized by the above-mentioned. An external device for a portable information terminal device according to item.

Images