JP2005353049A - Mobile terminal and usb device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To miniaturize a mobile terminal without decreasing the number of functions that users can use. <P>SOLUTION: In the mobile terminal 100, a switch in a screw hole of the terminal 100 is pressed down by contacting a screw 222A and a screw 222B of a USB device when these screws are coupled in the screw hole of the mobile terminal 100. Attachment of a USB device 200 to the mobile terminal 100 is detected by an output signal of the switch, starting the mobile terminal 100 to feed power from a power feeding terminal of the mobile terminal 100 to a terminal for power sources. The USB devise 200 is driven with the power, and establishes a connection between the mobile terminal 100 via an USB connector 221. Power supply to the USB device 200 is started based on an application library for the USB device 200 when an application to use the USB device 200 on the mobile terminal 100 is started if no switch is installed in the mobile terminal 100. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a structure of a portable terminal and a USB device used therefor.

  As a portable terminal for games, a portable game machine described in Patent Document 1 is known. A camera is rotatably fixed to the housing of the portable game machine.

JP 11-144040 A

  However, the camera of the conventional portable game machine is not always used. On the other hand, such a camera increases the size of the portable game machine.

  Therefore, an object of the present invention is to reduce the size of a mobile terminal without reducing the functions available to the user.

According to one aspect of the invention,
A USB port into which the USB connector of the USB device is inserted;
A housing formed with a screw hole to which a screw provided in the USB device is fixed;
A power supply terminal for supplying power to the power supply terminal that contacts the power supply terminal of the USB device in a state where the USB connector is inserted into the USB port;
A switch that is provided inside the screw hole and is turned on by contact with the screw inserted into the screw hole;
A portable terminal characterized by comprising:

Also,
A USB connector inserted into the USB port of the mobile terminal;
In a state where the USB connector is inserted into the USB port, a power supply terminal that contacts a power supply terminal of the mobile terminal;
A screw for fixing to the screw hole, which is attached to a position corresponding to the screw hole of the mobile terminal in a state where the USB connector is inserted into the USB port;
There is provided a USB device characterized by comprising:

Furthermore, according to another aspect of the invention,
A USB port into which the USB connector of the USB device is inserted;
A power supply terminal that contacts a power supply terminal of the USB device in a state where the USB connector is inserted into the USB port, and a power supply terminal for supplying power to start the USB device to the power supply terminal When,
A control unit that starts supplying the power from the power supply terminal when an application program that uses the USB device is activated;
There is provided a portable terminal characterized by comprising:

Also,
A USB connector inserted into the USB port of the mobile terminal;
In a state where the USB connector is inserted into the USB port, a power supply terminal that contacts a power supply terminal of the mobile terminal;
When power supply from the power supply terminal to the power supply terminal starts, a control unit that outputs a connection establishment request from the USB connector;
There is provided a USB device characterized by comprising:

  ADVANTAGE OF THE INVENTION According to this invention, size reduction of a portable terminal can be achieved, without reducing the function which a user can utilize.

  Hereinafter, an embodiment according to the present invention will be described with reference to the accompanying drawings.

  First, the configuration of the mobile terminal according to the present embodiment will be described.

  As shown in FIG. 1 and FIG. 2, the mobile terminal 100 according to the present embodiment is made of a metal in which various electronic components (arithmetic unit, left and right speakers, drive, etc.) are housed as members constituting the housing. A frame-shaped chassis 120 and a pair of resin cases (hereinafter referred to as a front case and a back case) 110 and 130 attached to both sides of the chassis 120 so as to close the space inside the chassis 120 are provided.

  A drive lid 131 for mounting a disc is attached to the back case 130 so as to be openable and closable.

  Further, an open button 124 for opening and closing the drive lid 131, a power button 125 for switching the power ON / OFF, an R button 125A, and an L button 125B are provided on the outer peripheral surface of the chassis 120. Since the chassis 120 has higher rigidity than the front and rear cases 110 and 130, a strap hole 127 to which a strap carabiner is attached is formed at a corner portion of the chassis 120. Similarly, for reasons of strength, for example, a jack 126 to which a headphone plug is connected, a charging terminal 128 to be connected to a terminal of a charger (hereinafter referred to as “Credor”), and a USB port 121 to which a connector of a USB device is connected. Connection parts such as power supply terminals 122A and 122B for supplying power to the USB device are also provided in the chassis 120. Then, screw holes 123A and 123B to which screws for fixing the USB device are fastened are formed at positions on both sides of the USB port 121.

  In the present embodiment, the portable terminal 100 functions as a USB slave, and the USB device functions as a USB master. For this reason, the connection with the USB device cannot be established from the portable terminal 100 side. Therefore, in the present embodiment, the screw hole 123A of the chassis 120 can be detected so that the mobile terminal 100 can detect the fastening between the fixing screw of the USB device and the screw holes 123A and 123B (that is, the mounting of the USB device). , 123B is provided with a switch (not shown) that is pushed down by the tip of a screw that has penetrated beyond a predetermined depth. Thereby, when the portable terminal 100 detects the mounting of the USB device by the output signal of the switch, the USB device is activated. Details thereof will be described later.

  Here, a switch for detecting the attachment of the USB device is provided at the bottom of the screw holes 123A and 123B of the chassis 120, but this is not necessarily required. For example, a switch that is pushed down by the tip of a USB connector that has penetrated beyond a predetermined depth may be provided inside the USB port, and the power supply terminals 122A and 122B are pushed down by the power supply terminal 223. You may make it also serve as a switch.

  In addition, the front case 110 includes a liquid crystal display 111, various buttons for receiving instructions from the user (for example, a volume button 112A for receiving volume operations, a select button 112B for receiving selection instructions, a start button 112C for receiving start instructions, and a home button. A button 112D for receiving a return instruction, a display button 112E for receiving a backlight ON / OFF switching instruction for the display 111, a sound button 112F for receiving a sound ON / OFF switching instruction, and various inputs for giving to an application program, etc. Operation buttons 112G and 112H), an analog pad 114 that receives a direction instruction from the user, and an LED that is turned on / off according to the state of the mobile terminal 100 (for example, a An LED 113A indicating the ON / OFF state of the source, an LED 113B indicating whether or not the portable terminal 100 is in the HOLD state, and a DC terminal 116 to which a DC connector from an AC adapter or an extended battery described later is connected are provided. Further, a duct hole 115 and the like are formed in the front case 110.

  Next, various accessories attached to the portable terminal 100 will be described.

1. USB Device As described above, the mobile terminal 100 according to the present embodiment functions as a USB slave so that it can be connected to, for example, a personal computer. A USB device that functions as a USB master can be attached to the USB port of the mobile terminal 100. The user can use the USB device by appropriately attaching the necessary USB device among various USB devices functioning as a master. In this manner, even if an optional device is not always provided in the mobile terminal 100, the device can be attached to the mobile terminal 100 only when the function is required. For this reason, it is possible to reduce the size of the mobile terminal 100 without reducing the functions available to the user.

  Specific examples of such USB devices include a character input keyboard module, a mobile phone module, a GPS receiver, a camera module, and the like. Hereinafter, these USB devices will be described.

(1) Character Input Keyboard Module FIG. 3 shows a portable terminal 100 equipped with a character input keyboard module.

  The character input keyboard module 200 includes a touch panel 210 that outputs a signal representing a contact position of the stylus pen 400 or a user's finger, and a communication device 220 that transmits a signal corresponding to the output of the touch panel 210 to the mobile terminal 100. Yes.

  The touch panel 210 describes characters (or character strings) or illustrations corresponding to keys according to the purpose of use. When the stylus pen 400 or the like touches the description position of these characters or character strings, the position is indicated. A signal (that is, a signal that can identify a character or the like described at a contact position of the stylus pen 400 or the like) is input from the touch panel 210 to the communication device 220. For example, the touch panel of a keyboard device for character input describes characters (not shown) representing keys (alphabet, shift key, control key, etc.) necessary for character input. By bringing the stylus pen 400 or the like into contact with the description position, a signal that can identify a character or the like intended for input can be input to the communication device 220.

  The communication device 220 includes a USB connector 221 inserted into the USB port 121 of the mobile terminal 100 with appropriate play, and a power supply terminal 122A of the mobile terminal 100 in a state where the USB connector 221 is inserted into the USB port 121 of the mobile terminal 100. , 122B and screws 222A, 222B fastened to the screw holes 122A, 122B of the mobile terminal 100, respectively.

(2) Mobile phone module The mobile phone module has a touch panel that outputs a signal representing the contact position of the stylus pen 400 or the user's finger, and a USB wireless communication device that performs bidirectional wireless communication with the base station. . The appearance of the mobile phone module is almost the same as that of the keyboard module 200 for character input, but the touch panel of the mobile phone module describes characters or the like representing keys (tenkey, hold key, etc.) necessary for using the mobile phone function. Has been.

(3) GPS Receiver FIG. 4 shows an overview of the GPS receiver 500 attached to the mobile terminal 100.

  The GPS receiver 500 measures the latitude and longitude of the current position based on the radio wave received by the GPS antenna 510 and the GPS antenna 510 for receiving position measurement radio waves from the satellite, and transmits the measurement results to the mobile terminal 100. The communication device 520 includes an antenna attitude adjustment rotating shaft (not shown) that holds the GPS antenna 510 so as to be rotatable in the direction in which the communication device 520 is attached to the back case 130 of the mounted mobile terminal 100 and in the return direction.

  The GPS antenna 510 has good sensitivity when the receiving surface is horizontal. For this reason, the GPS antenna 510 has a receiving surface in the thickness direction C of the mobile terminal 100 being worn so that the orientation of the receiving surface of the GPS antenna 510 can be adjusted according to the attitude of the mobile terminal 100 being used. Can be rotated from an angle at which the receiving surface faces in a predetermined direction D as an upward direction of the mobile terminal 100 (an angle at which the receiving surface is substantially horizontal when the mobile terminal 100 is placed on a cradle described below). It is desirable to be.

  As with the keyboard module, the communication device 520 includes a USB connector 521 that is inserted into the USB port 121 of the portable terminal 100 with appropriate play, a power supply terminal 523 that is connected to the power supply terminals 122A and 122B of the portable terminal 100, Screws 522A and 522B that are fastened to the screw holes 122A and 122B of the mobile terminal 100 are provided.

(4) Camera Module FIG. 5 shows an overview of the camera module 600 attached to the mobile terminal 100.

  The camera module 600 includes a camera 610, a communication device 620 that transmits the output of the camera 610 to the mobile terminal 100, and a rotation axis that rotatably holds the camera 610 so that a shooting area can be changed. As with the keyboard module, the communication device 620 includes a USB connector 621 inserted into the USB port 121 of the mobile terminal 100 with appropriate play, and a power supply terminal 623 connected to the power supply terminals 122A and 122B of the mobile terminal 100, respectively. , Screws 622A and 622B are fastened to the screw holes 122A and 122B of the mobile terminal 100, respectively.

  The USB device and the portable terminal 100 as described above have the following functional configurations, respectively.

  As shown in FIG. 13, in the portable terminal 100, the switch 1201 inside the screw holes 123A and 123B and the USB connectors (221, 521, 621, etc .; hereinafter, these are collectively referred to as the USB connector 1400) have appropriate play. Control the power supply module 1202 based on the state of the switch 1201, the control of the power supply module 1202 based on the state of the switch 1201, the control of communication via the USB port 121, etc. A control unit 1200 (implemented by an OS and a computing device).

  On the other hand, as shown in FIG. 14, the USB device includes a USB connector 1400 inserted into the USB port 121 of the mobile terminal 100, a power supply terminal (223, 523, 623, etc .: hereinafter, these receiving power supply from the mobile terminal 100. And a control unit 1402 that executes connection establishment processing with the portable terminal 100 when activated by the power supplied from the portable terminal 100 via the power terminal 1401.

  With the functional configuration described above, the following processing is executed between the USB device and the mobile terminal 100.

i) Connection establishment processing When the USB connector 1400 of the USB device is inserted into the USB port 121 of the mobile terminal 100 and the screws 622A and 622B are fastened to the screw holes 123A and 123B of the mobile terminal 100, the control unit of the mobile terminal 100 1200 recognizes the mounting of the USB device by the output of the switches in the screw holes 123A and 123B. Here, the condition for determining that the USB device is attached is that at least one of the switches in the two screw holes 123A and 123B is ON, and that both of the switches in the two screw holes 123A and 123B are ON. It may be any of the following.

  When the portable terminal 100 recognizes the installation of the USB device, the portable terminal 100 controls the power supply module 1202 and starts supplying power from the power supply terminals 122A and 122B to the power supply terminal of the USB device. The USB device is activated by this power supply. The activated USB device control unit 1402 recognizes the portable terminal 100 and transmits a connection establishment request to the portable terminal 100 via the USB connector 1400. Thereby, the connection establishment process between the USB device and the portable terminal 100 is executed.

  When the connection between the USB device and the mobile terminal 100 is established, the control unit 1402 of the mobile terminal 100 authenticates the USB device. If the authentication is successful, the driver of the USB device is downloaded from the USB device. . Thereafter, the control unit 1402 of the mobile terminal 100 controls the USB device by using the received driver or the like.

  Note that some USB devices have an internal power supply. For such a USB device, even if the switch is pushed down by inserting the USB connector 1400 into the USB port 121, the portable terminal 100 does not need to supply power. Therefore, when a USB device having an internal power supply is attached to the mobile terminal, power supply from the mobile terminal to the USB device may not be performed even if the switch inside the screw hole is turned on. . Specifically, after the USB connector 1400 is inserted into the USB port 121, the switch is turned on, and after this, the control unit 1200 of the mobile terminal 100 recognizes the mounting of the USB device, the control unit 1402 of the USB device If identification information indicating the model of the USB device is transmitted to the portable terminal 100 via the USB connector 1400, the control unit 1200 of the portable terminal 100 indicates whether the identification information represents a model having an internal power supply. If it is determined that the identification information represents a model having an internal power supply, power is not supplied to the USB device, and power is supplied to the USB device otherwise. Can be.

ii) Connection termination processing When a connection termination request is transmitted from the portable terminal 100 to the USB device via the USB port 121, the control unit 1402 of the USB device executes a procedure for terminating the connection with the portable terminal 100. Thereby, the connection between the USB device and the portable terminal 100 is completed.

  When detecting the disconnection with the USB device, the control unit 1200 of the mobile terminal 100 controls the power supply module 1202 to stop the power supply from the power supply terminals 122A and 122B to the power supply terminal 1401 of the USB device, Delete the USB device driver.

  In addition, when the USB device is suddenly pulled out, the switches inside both screw holes may be turned off without undergoing the above connection end processing. In such a case, the control unit 1200 of the mobile terminal 100 detects the disconnection with the USB device, and stops the power supply from the power supply terminals 122A and 122B to the power supply terminal 1401 of the USB device.

iii) Control of USB device from application program When the connection between the USB device and the portable terminal 100 is established, the OS of the portable terminal 100 indicates that the connection with the USB device has been established in response to a request from the application program. To the application program. Alternatively, the OS may notify the application program that the USB device has been attached, regardless of a request from the application program. The following notification from the OS to the application program includes both notifications according to requests from the application programs and notifications not according to requests from the application programs.

  When the USB device is attached to the portable terminal 100, the OS of the portable terminal 100 indicates that the USB device is attached, that is, the above condition (the condition that at least one of the switches is ON, or both To the application program that the switch is in the ON state). In this case, since the application program can recognize whether or not the USB device is mounted, the OS can request the OS to start and stop the power supply to the USB device as necessary. For example, the application program can start supplying power to the USB device (or once after stopping it) for reconnection, reset, and the like. That is, the connection with the USB device as the master can be established and terminated from the mobile terminal 100 side as the slave in effect.

iv) Power management of USB device After the startup, the USB device enters the power management mode when it is not operated for a predetermined time. Specifically, the control unit 1402 of the USB device performs a connection end notification to the mobile terminal 100, and if the mobile terminal 100 is notified of approval for this notification (unless the mobile terminal 100 denies), the mobile terminal 100 Execute the procedure for ending the connection with 100. Thereby, when the connection between the USB device and the portable terminal 100 is completed, the control unit 1200 of the portable terminal 100 controls the power supply module 1202 so that the power supply terminals 122A and 122B are connected to the power supply terminal 1401 of the USB device. The power supply is stopped or the USB device automatically turns off the power.

  Thereafter, when it becomes necessary to restart the USB device, the control unit 1200 of the mobile terminal 100 controls the power supply module 1202 to supply power from the power supply terminals 122A and 122B to the power supply terminal 1401 of the USB device. To resume. At this time, if the USB device driver or the like remains in the portable terminal 100, the transfer of the driver or the like from the USB device to the portable terminal 100 is not executed. If the setting parameter of the USB device is set in the mobile terminal 100, the parameter is transferred from the mobile terminal 100 to the USB device. As a result, the USB device returns to the state before entering the power management.

v) Power management of the mobile terminal 100 When the mobile terminal 100 is not operated for a predetermined time, the control unit 1200 of the mobile terminal 100 controls the power supply module 1202, stops the power supply to the USB device, and further enters the sleep mode. to go into. Thereby, both the portable terminal 100 and the USB device enter the power management mode. However, depending on the type of the USB device, even when the mobile terminal 100 is in the sleep mode, the mobile terminal 100 continues to supply power to the USB device, and when there is a notification from the USB device, the mobile device 100 returns from the sleep mode accordingly. It can also be done. In this way, for example, even when the mobile terminal 100 is in sleep mode, if power is supplied to the mobile phone module, the mobile phone module can be kept in a standby state. Then, when an incoming call is received in the mobile phone module while the mobile terminal 100 is sleeping, the sleep mode of the mobile terminal 100 may be canceled in response to a notification from the mobile phone module.

  In this embodiment, the USB device is provided with two fixing screws, and the portable terminal is provided with two screw holes 123A and 123B for fastening the fixing screws. There is no need to do so. For example, a positioning pin may be used instead of one of the two fixing screws of the USB device. In this case, the portable terminal 100 only needs to be formed with a screw hole for fastening a fixing screw of the USB device and a positioning hole for inserting a positioning pin of the USB device.

  By the way, in the above, the switch for detecting the mounting of the USB device is provided in the portable terminal, but it is not always necessary to do so. Without providing such a switch in the portable terminal 100, for example, when an application using a USB device is activated on the portable terminal, a library that supplies power to the USB device may be called. The case where this is done will be described below.

  Normally, the user starts an application using the USB device on the mobile terminal 100 by operating an operation switch or the like after the USB device is mounted on the mobile terminal 100. Therefore, at the time of activation, such an application calls a library that requests the OS to start power supply from the power supply terminals 122A and 122B. By calling this library, the functional configuration of FIG. 6 is realized. However, the processing executed by the control unit 1200 in this case is different from the above-described case in the following points.

  As soon as the library is activated, the control unit 1200 controls the power supply module 1202 and starts supplying power from the power supply terminals 122A and 122B. That is, unlike the above-described case, the control unit 1200 starts power supply without determining whether or not a USB device is attached.

  If the USB device is attached to the portable terminal 100 at this time, the USB device is activated by this power supply. As a result, the USB device realizes the functional configuration of FIG. 7 and executes the same processing as described above. Specifically, the control unit 1402 of the USB device outputs a connection establishment request from the USB connector 1400. In response to the connection establishment request, the control unit 1200 of the mobile terminal 100 executes a connection establishment process with the control unit 1402 of the USB device.

  As a result, when the connection between the USB device and the portable terminal 100 is established, the control unit 1402 of the portable terminal 100 authenticates the USB device. As a result, if the authentication is successful, the control unit 1402 of the mobile terminal 100 downloads the USB device driver and the like from the USB device. Thereafter, in the portable terminal 100, the process returns from the library to the application, and the USB device can be used from the application.

  On the other hand, if the USB device is not attached to the portable terminal 100, a connection establishment request from the USB device is not transmitted to the portable terminal 100. For this reason, when the USB port non-communication state continues for a predetermined time, the control unit 1402 of the mobile terminal 100 determines that the USB device is not attached and returns an error to the application. The application outputs a message that prompts the user to attach the USB device and restart the application from the liquid crystal display 111 or the like.

  In the above, as a specific example of a USB device, a keyboard module for character input, a mobile phone module, a GPS receiver, and a camera module have been described. However, any device that realizes any function is related to the present embodiment. It can be used as a USB master.

2. Strap FIG. 6 is an external view of the mobile terminal 100 in which the carabiner 741 of the strap 700 is attached to the strap hole 127.

  The strap 700 includes headphones 710A and 710B, a tape-like belt 730 to be hung on the user's neck and the like, a fastener 731 in which both ends of the belt are bundled so that the belt 730 has a ring shape, and a fastener with a narabiner 741 to which the fastener 731 is fixed. 740. As long as the material of the belt 730 is an insulating material having an appropriate strength capable of holding the mobile terminal 100 and an appropriate flexibility that does not hinder the use of the mobile terminal 100 when worn on the neck, any material can be used. It may be a thing. A plurality of buttons 750 for operating the mobile terminal 100 are attached to the belt 730, and wires from these buttons 750 are embedded in the belt. For this reason, it is not necessary to attach a remote controller for operating the mobile terminal 100, and the burden on the user's neck can be reduced accordingly.

  Further, the wires 712A and 712B from the left and right receivers 711A and 711B of the headphone 710 are embedded in the belt from a position of an appropriate length from the fastener 740 and bundled with the wire of the button 740. Via the hole of the fastener 740. The plug connected to the jack 126 of the portable terminal 100 is attached to the tip of the wire bundle drawn out from the fastener 740.

  Further, the strap 700 is attached to a circular noise canceller 720 that reduces noise by outputting a sound having a phase opposite to that of the ambient environment. As shown in FIG. 7, the noise canceller 720 is provided with a switch 721 for switching ON / OFF of the noise canceller on the outer peripheral surface, and forms a belt through hole for inserting a ring-shaped belt 730 on one side surface. A U-shaped belt adjuster part 723 is attached. The noise canceller 720 is fixed to the belt 730 by friction between the belt 730 and the belt adjuster part 723, and is positioned at the back of the user's neck when the belt 730 is put on the user's neck. The belt length around the user's neck can be adjusted by withdrawing the belt 730 from the belt opening in the fastener side direction A or the opposite direction B and changing the distance from the fastener 740 to the adjuster part 723. . Note that, for example, a part 724 such as a decorative part or an operation button can be attached to the central region of the other side surface of the noise canceller 720 as necessary.

  Here, the tape-like belt 730 is used as a belt to be worn around the user's neck, but this is not necessarily required. For example, as shown in FIG. 8, a string-like belt 730 ′ on which the operation buttons of the mobile terminal 100 are not formed may be used instead of such a tape-like belt 730. As in the case of the tape-like belt 730, the headphones wires 712A and 712B are embedded inside the string-like belt 730 ′ and pulled out from a fastener with a carabiner (not shown) in a bundled state. Note that the plug connected to the jack 126 of the portable terminal 100 is also attached to the tip of the wire bundle drawn from the fastener, as in the case of using the tape-shaped belt 730.

  When it is desired to form the operation button of the mobile terminal 100 on the strap using the strap belt 730 ′, for example, the operation button of the mobile terminal 100 is interposed between the strap belt 730 ′ and the clip with the carabiner. What is necessary is just to connect with the tape-shaped belt of the appropriate length affixed.

  Further, a noise canceller 720 ′ having the same function as the noise canceller 720 is attached to the string belt 730 ′. However, a groove is inserted on one side of the noise canceller 720 ′, and the both ends of the string-like belt 730 ′ are bundled into one inside the groove and inserted into the groove. Yes. On one side surface of the noise canceller 720 ′, a grip 725 for attaching the string belt 730 ′ to the groove bottom of the noise canceller 720 ′ is attached instead of the adjuster part 723. By adjusting the noise canceller 720 ′, the noise canceller 720 ′ can be fixed to the string belt 730 ′.

3. FIG. 9 shows a cradle 800 for charging the internal battery of the mobile terminal 100.

  The cradle 800 includes a holding member 802 in which two grooves 802A and 802A ′ are formed at positions corresponding to the chassis 120 of the mobile terminal 100, and the chassis 120 inserted in one groove 802A of the holding member 802. A power supply terminal 809 provided so as to contact the charging terminal 128 of the terminal 100, a support plate 805 contacting a region other than the drive lid 131 of the back case 130 of the mobile terminal 100, a holding member 802, and a support plate material 805 are fixed. Pedestal 801, a rotating shaft 804 for holding the pedestal 801, a base 803 with a leg 803A for holding the rotating shaft 804 so that the display 111 can be rotated in a horizontal plane, and a cord for connecting the power supply and the power supply terminal 809 And a plug (not shown). According to such a credor, the inclination angle of the base 801 with respect to the base 803 can be adjusted so that the user's line of sight faces the display 111 of the mobile terminal 100 being charged.

4). Extended Battery FIG. 10 shows an extended battery connected to the mobile terminal 100.

  The outer peripheral surface of the extended battery 900 is provided with a terminal 904 to which a cord connector from the AC adapter is connected and a terminal (not shown) to which a cord connector from the DC terminal 116 of the mobile terminal 100 is connected. In addition, on one surface of the extended battery 900, an indicator 901 indicating either the charge amount or the remaining charge amount, and a button 902 for switching the amount indicated by the indicator 901 are provided. By interposing the extended battery 900 between the AC adapter and the portable terminal 100, the user can operate the portable terminal 100 while charging both the extended battery 900 and the internal battery of the portable terminal 100. it can. At this time, if the indicator 901 indicates the charge amount, the user can check the charging completion timing from the indicator 901. When the AC adapter is removed from the extended battery 900, the user can confirm the recharge timing from the indicator 901 by setting the indicator 901 to indicate the remaining charge amount.

  Furthermore, one end of a plate member 903 on which a plurality of guides 903A are formed is fixed to the other surface of the extended battery. If, for example, a U-shaped clip with parts for fixing the extended battery attached to the user's clothing or the like is inserted into the plate member 903 along the guide 903A, the extended battery connected to the portable terminal 100 can be held. Carrying on the convenience of carrying. Specifically, a U-shaped clip 910 having one end of a clip 910 to be inserted into clothing or the like as shown in FIG. 11 and a belt 921 attached to the user's arm as shown in FIG. The fixed U-shaped clip 910 can be attached to the plate member 903.

  Here, the U-shaped clip in which parts for fixing the extended battery to the user's clothing or the like are given as an example, but the U-shaped clip attached to the plate member 903 has other purposes. Parts can also be attached.

It is a figure for demonstrating the external appearance of the portable terminal which concerns on embodiment of this invention. It is a rear view of the portable terminal of FIG. It is a figure for demonstrating the external appearance of the keyboard module for character input which concerns on embodiment of this invention. It is a figure for demonstrating the external appearance of the GPS module which concerns on embodiment of this invention. It is a figure for demonstrating the external appearance of the camera module which concerns on embodiment of this invention. It is an external view of the portable terminal with a strap concerning an embodiment of the invention. It is a figure for demonstrating the external appearance of the noise canceller which concerns on embodiment of this invention. It is the front view and side view of the strap which concern on embodiment of this invention. It is a figure for demonstrating the external appearance of the cradle which concerns on embodiment of this invention. It is a figure for demonstrating the external appearance of the extended battery which concerns on embodiment of this invention. It is a rear view of the extended battery with which the clip with a clip was attached according to an embodiment of the invention. It is a rear view of the extended battery with which the clip with a belt was attached based on embodiment of this invention. It is a functional block diagram of the portable terminal which concerns on embodiment of this invention. It is a functional block diagram of the USB apparatus which concerns on embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... Portable terminal, 110 ... Front case, 111 ... Liquid crystal display, 112A-112H ... Button, 114 ... Microphone, 113A, 113B ... LED, 116 ... DC terminal, 130 ... Rear case, 121 ... USB port, 122A, 122B ... Power supply terminal, 123A, 123B ... Screw hole, 124 ... Open button, 125 ... Power button, 126 ... Headphone jack, 128 ... Charging terminal, 127 ... Strap hole, 200 ... Keyboard module for character input, 400 ... Stylus pen, 500 ... GPS receiver, 600 ... Camera module, 700 ... Strap, 720 ... Noise canceller, 800 ... Credor, 900 ... Extended battery

Claims (12)

A USB port into which the USB connector of the USB device is inserted;
A housing formed with a screw hole to which a screw provided in the USB device is fixed;
A power supply terminal for supplying power to the power supply terminal that contacts the power supply terminal of the USB device in a state where the USB connector is inserted into the USB port;
A switch that is provided inside the screw hole and is turned on by contact with the screw inserted into the screw hole;
A portable terminal characterized by comprising: A USB connector inserted into the USB port of the mobile terminal;
In a state where the USB connector is inserted into the USB port, a power supply terminal that contacts a power supply terminal of the mobile terminal;
The USB connector is attached to a position corresponding to the screw hole of the mobile terminal in a state of being inserted into the USB port, and when inserted into the screw hole, a screw that contacts a switch inside the screw hole;
A USB device characterized by comprising: The mobile terminal according to claim 1,
The portable terminal, wherein the power supply terminal starts power supply to the power supply terminal when the switch is turned on. The USB device according to claim 2,
A USB device, which is activated by starting power supply from the power supply terminal to the power supply terminal and establishes a connection with the portable terminal. A USB port into which the USB connector of the USB device is inserted;
A power supply terminal that contacts a power supply terminal of the USB device in a state where the USB connector is inserted into the USB port, and a power supply terminal for supplying power to start the USB device to the power supply terminal When,
A control unit that starts supplying the power from the power supply terminal when an application program using the USB device is activated;
A portable terminal characterized by comprising: A USB connector inserted into the USB port of the mobile terminal;
In a state where the USB connector is inserted into the USB port, a power supply terminal that contacts a power supply terminal of the mobile terminal;
When power supply from the power supply terminal to the power supply terminal starts, a control unit that outputs a connection establishment request from the USB connector;
A USB device characterized by comprising: The mobile terminal according to claim 5,
When the USB port receives a connection establishment request within a predetermined time after the start of power supply, the control unit establishes a connection with the USB device, and the USB port within the predetermined time. When the mobile terminal does not accept the connection establishment request, it outputs a message prompting the user to attach the USB device. The USB device according to claim 6,
When the USB device is activated by starting the power supply from the power supply terminal to the power supply terminal, the control unit transmits the connection establishment request to establish a connection with the portable terminal. USB device. A mobile device,
A USB device attached to the portable terminal;
With
The portable terminal is
USB port,
A housing formed with screw holes;
A power supply terminal for supplying power to the USB device;
A switch provided inside the screw hole;
Have
The USB device is
A USB connector inserted into the USB port;
A power supply terminal for receiving power supply from the power supply terminal, the power supply terminal contacting the power supply terminal in a state where the USB connector is inserted into the USB port;
The USB connector is attached at a position corresponding to the screw hole of the portable terminal inserted into the USB port. When the USB connector is inserted into the screw hole, it contacts the switch inside the screw hole and turns on the switch. The screw to be in a state,
The system characterized by having. The system of claim 9, comprising:
When the switch is turned on, the power supply terminal starts supplying power to the power terminal,
The USB device is activated by the start of power supply from the power supply terminal to the power supply terminal, and establishes a connection with the portable terminal. A mobile device,
A USB device attached to the portable terminal;
With
The portable terminal is
USB port,
A power supply terminal for supplying power to activate the USB device;
A first control unit that starts supplying the power from the power supply terminal when an application program that uses the USB device is activated;
Have
The USB device is
A USB connector inserted into the USB port;
A power supply terminal for receiving the power supply from the power supply terminal, the power supply terminal contacting the power supply terminal in a state where the USB connector is inserted into the USB port;
A second control unit that outputs a connection establishment request from the USB connector when the supply of the power from the power supply terminal to the power supply terminal is started;
The system characterized by having. 12. The system according to claim 11, wherein
When the USB device is activated by starting the supply of power from the power supply terminal to the power supply terminal, the second control unit outputs a connection establishment request from the USB connector,
When the USB port receives the connection establishment request within a predetermined time after the supply of power is started, the first control unit establishes a connection with the USB device, and performs the predetermined time. If the USB port does not accept the connection establishment request, a system for outputting a message prompting the user to attach the USB device.

Images