JP2009253916A - Electronic apparatus and electronic system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic apparatus and electronic system capable of decrypting encrypted authentication data outputted from an external device. <P>SOLUTION: An in-vehicle unit 100, as the electronic apparatus, comprises: a connector 150 physically and electrically attachable to and detachable from a portable device 10 controlling operation of an external device 200 which outputs encrypted authentication data; a USB cable 185 of which one end is connected to the connector 150 and the other end is connected to the external device 200; a decryption section 141 for decrypting the encrypted authentication data; and a control section 140 which receives the encrypted authentication data from the external device 200 via the portable device 10 mounted to the connector 150 and the USB cable 185, and transmits a result of decryption, due to the decryption section 141, of the encrypted authentication data to the external device 200 via the portable device 10 mounted to the connector 150 and the USB cable 185. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an electronic device and an electronic system in which a portable device can be attached and detached.

  As a conventional navigation device, a simple but portable portable navigation device (hereinafter referred to as a portable navigation device) called a PND (personal navigation device), and a recess ( A vehicle-mounted navigation device that is housed and fixed in a (DIN opening) is widely known. A vehicle-mounted navigation device can provide highly accurate guidance based on information such as a vehicle speed from a vehicle, and a device equipped with an audio device has also been proposed.

  In recent years, a navigation device that combines the portability of a portable navigation device with the highly accurate guidance performance of an in-vehicle navigation device has been studied.

  Patent Documents 1 to 4 disclose a configuration in which a navigation unit can be detached from an in-vehicle device mounted on a vehicle. By removing the navigation unit from the in-vehicle device, the navigation unit can be used alone as a portable navigation.

  In Patent Document 5, it is possible to remove the navigation device from the vehicle and use the navigation device even during walking. Further, it is disclosed that the car navigation mode is set when the vehicle is mounted, and the man navigation mode is executed when the vehicle is detached from the vehicle.

There is also known an in-vehicle navigation device including a main body fixed in a recess (DIN opening) formed on a dashboard of a vehicle and a PND that can be attached to and detached from the main body.
JP-A-8-318792 JP 2002-328026 A JP 2005-524570 A JP 2001-239895 A JP 2003-166848 A

  Incidentally, in recent years, an external device is connected to an in-vehicle navigation device, and data registered in the external device is reproduced using a display unit and a reproduction unit provided in the in-vehicle navigation device. In particular, an external device that outputs music data and moving image data such as ipod (registered trademark) is connected to the in-vehicle navigation device.

  In this external device, there is data that is not output to the in-vehicle navigation device unless an authentication process including decryption of the pre-encrypted authentication data is executed. It could not be played back on the device.

  An object of the present invention is to provide an electronic device and an electronic system that are capable of decrypting encrypted authentication data output from an external device.

  In order to achieve such an object, an electronic device according to the present invention includes a portable device that controls the operation of an external device that outputs encrypted authentication data, a detachable means that is physically and electrically detachable, and one end. Is connected to the attaching / detaching means, and the other end is connected to the external device, a decrypting means for decrypting the encrypted authentication data, a portable device attached to the attaching / detaching means, and the connecting means And receiving the encrypted authentication data from the external device via the mobile device, and the connecting device attaching the decryption result of the encrypted authentication data by the decrypting device to the attaching / detaching device And a transmission / reception means for transmitting to the external device via the network.

  According to this configuration, it is possible to decrypt the encrypted authentication data output from the external device. Moreover, since the portable device is not provided with a decoding means, the weight and size of the portable device can be reduced. The electronic device can transmit / receive the encrypted authentication data and the decryption result to / from an external device using an existing communication line that connects the portable device and the electronic device to each other.

  According to the present invention, encrypted authentication data output from an external device can be decrypted.

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings.

(First embodiment)
FIG. 1 is a diagram showing an external shape of an electronic system including an electronic device according to the first embodiment of the present invention.

  As shown in FIG. 1, an in-vehicle system 1 as an electronic system includes an in-vehicle device 100 (electronic device) mounted on a vehicle and a portable device 10 (portable device) having a navigation function. The portable device 10 can be used by being attached to the front surface portion 120 of the in-vehicle device 100 and can be used alone in a state where it is detached from the in-vehicle device 100.

  The in-vehicle device 100 has a radio broadcast playback function and a music data and moving image data playback function written on a recording medium such as a CD (Compact Disk) and a DVD (Digital Versatile Disk). Further, the in-vehicle device 100 includes a main body 110 having a recording medium reproducing unit and a recording medium insertion / extraction port, and a front surface 120 having a display unit 131 and an operation unit 132. A USB (Universal Serial Bus) cable 185 (connecting means) is connected to the back surface of the main body 110, and a USB terminal (female) 186 is connected to one end of the USB cable 185.

  The portable device 10 has a navigation function of searching for a guide route to a destination and displaying the searched guide route on a map. A USB cable 201 having a USB terminal (male) 202 at one end can be connected to an external device 200 that outputs music data and moving image data such as ipod (registered trademark). A USB terminal (male) 202 can be connected to a USB terminal (female) 186, and the external device 200 is connected to the in-vehicle device 100 via USB cables 201 and 185. The USB terminal (female) 186 is provided on a dashboard or the like inside the vehicle (not shown).

  FIG. 2 shows the front part 120 of the in-vehicle device 100 from which the portable device 10 is removed. The front surface portion 120 of the in-vehicle device 100 is provided with an attaching / detaching portion 170 in which a recess for attaching the portable device 10 is formed. The detachable portion 170 includes a connector 150 for electrically connecting the in-vehicle device 100 and the portable device 10, a lock portion 161 and a rib 162 for fixing the portable device 10 to the front surface portion 120, and the portable device 10. A slope 163 for guiding one end of the portable device 10 to the rib 162 and an extruding part 164 for pushing the portable device 10 from the back direction to the front direction are provided. When the removal button 160 provided on the front surface portion 120 is operated, the lock mechanism 161 is released, and the portable device 10 can be detached from the front surface portion 120.

  FIG. 3 is a diagram illustrating a state in which the front surface portion 120 is inclined with respect to the main body portion 110 and the insertion / extraction port 180 is exposed.

  By driving the slider 181 shown in FIG. 3 by a drive mechanism (not shown), the front surface portion 120 can be tilted with respect to the main body portion 110. By the tilting operation, the insertion / extraction port 180 provided in the main body 110 can be exposed and the recording medium can be inserted / removed. An operation button (specifically, a tilt / eject button 132a shown in FIG. 6) is provided on the front surface portion 120 of the in-vehicle device 100, and a tilt angle corresponding to the operation of this button can be set.

  FIG. 4 is a diagram illustrating an example of mounting the in-vehicle system 1 on a vehicle.

  For example, as shown in FIG. 4, the in-vehicle system 1 is disposed in a dashboard portion at a substantially center between a driver seat 52 and a passenger seat 51. Although not shown, a GPS antenna of a GPS information receiving unit 133, which will be described later, is disposed on the dashboard or attached to the passenger compartment side of the windshield.

  FIG. 5 is a block diagram illustrating a schematic configuration of the in-vehicle system 1.

  The in-vehicle device 100 and the portable device 10 are electrically connected by a connector. A connector 150 (attachment / detachment means, first attachment / detachment means) is provided on the in-vehicle device 100 side, and a connector 30 (second attachment / detachment means) is provided on the portable device 10. By connecting these connectors 150 and 30 to each other, various signals are transmitted and received between the in-vehicle device 100 and the portable device 10 and function as the in-vehicle system 1. In addition, the connectors 150 and 30 are provided with power supply terminals for supplying power from the vehicle battery to the portable device 10, and the in-vehicle device 100 is connected to the in-vehicle device 100. When power is supplied to the portable device 10, power is also supplied to the portable device 10 via the power supply terminal.

  The in-vehicle device 100 includes a display unit 131, an operation unit 132, a GPS information reception unit 133, a radio reception unit 134, a reproduction unit 135, an audio adjustment unit 136 (output means), a memory 137, a microphone 138, and an external audio / video input unit 139. , A control unit 140 (transmission / reception means, first transmission / reception means, control means, output means), a decryption unit 141 (decryption means), and a connector 150. When the engine key is at the Acc or IG position, the in-vehicle device 100 operates by being supplied with electric power from the battery on the vehicle side.

  A USB cable 185 is connected to the connector 150, and the USB cable 185 is pulled out of the in-vehicle device 100 and connected to the USB terminal 186. The USB terminal 186 is connected to the external device 200 via the USB terminal 202 and the USB cable 201.

  The display unit 131 includes a liquid crystal panel and a backlight, and displays a received broadcast frequency, a reproduction music track number, a reproduction music name, and the like.

  The operation unit 132 inputs an operation instruction for switching the operation mode of the in-vehicle device 100 and an operation instruction in the switched various modes. As shown in FIG. 6, the operation unit 132 includes a tilt / eject button 132a for tilting the front unit 120, a band / tune button for switching the frequency band of the radio to be reproduced or the track number of the recording medium to be reproduced. 132b, a TEXT button 132c for switching the title displayed on the display unit 131, a SCREEN button 132d for switching the image displayed on the display unit 11 to either a navigation image or a DVD moving image, or adjusting the volume. SOURCE / PWR button 132e for switching the source to be played back or turning on / off the power of the in-vehicle device 100, CONTROL button 132f for controlling sound quality, and cutting the sound or lighting the display on the display unit 11 / MUTE / SCREE to turn off It has an OFF button 132g.

  Returning to FIG. 5, the GPS information receiving unit 133 includes a GPS antenna and a tuner unit, and receives a GPS signal from a satellite. The GPS signal received by the GPS information receiving unit 133 is output to the navigation unit 19 of the portable device 10 via the control unit 140, the connector 150, the connector 30, and the control unit 20, and the portable device 10 is stored based on the GPS signal. The position of the vehicle on which the in-vehicle device 100 is mounted is determined.

  The radio receiving unit 134 includes an antenna and a tuner unit, receives broadcast waves such as AM broadcast, FM broadcast, and multiplex broadcast, outputs audio data, receives and demodulates multiplexed data, and demodulates signals. Is output to the control unit 140.

  The reproduction unit 135 reproduces audio data and moving image data recorded on a recording medium such as a CD or DVD, and outputs a reproduction signal to the control unit 140.

  Note that the demodulated signal output from the radio receiving unit 134 may be output to the audio adjusting unit 136 described later without going through the control unit 140.

  The audio adjustment unit 136 adjusts the volume of the audio data received and demodulated by the radio reception unit 134, the audio data reproduced by the reproduction unit 135, and the audio data input from the external device 200 via the portable device 10. And signal processing such as sound quality adjustment and the like and output to the speaker 145 (output means).

  The memory 137 can be composed of a RAM (Random Access Memory) capable of reading and writing data, and temporarily stores information necessary for control. The microphone 138 is for making a hands-free call, and captures the voice of the user in the passenger compartment.

  The external audio / video input unit 139 includes a connection terminal with an external device such as a USB memory or a portable audio device, inputs audio data from the external device, sends the audio data to the control unit 140, and controls from the control unit 140 Outputs signals, audio data, etc. to connected external devices.

  The control unit 140 controls the radio reception unit 134, the reproduction unit 135, the audio adjustment unit 136, and the like according to the operation of the operation unit 132. Further, the control unit 140 outputs various signals to the portable device 10 via the connector 150 and controls the in-vehicle device 100 based on the various signals input from the portable device 10. For example, the control unit 140 outputs the GPS signal received by the GPS information receiving unit 133 and the audio data input by the microphone 138 to the portable device 10 via the connector 150. Note that the audio data input from the microphone 138 may be output to the portable device 10 via the connector 150 without passing through the control unit 140.

  Further, the control unit 140 outputs the audio data input from the external device 200 via the portable device 10 to the audio adjustment unit 136.

  In addition, the control unit 140 acquires operation signals for menu images in various modes displayed on the display unit 11 of the portable device 10 from the control unit 20 of the portable device 10, and controls the radio reception unit 134 and the playback unit 135. Do.

  In addition, the controller 140 receives power from a battery mounted on the vehicle. The control unit 140 outputs battery power to the portable device 10 when the portable device 10 is connected. The controller 140 receives a vehicle speed pulse and an illumination power signal from the vehicle. The control unit 140 transfers the input vehicle speed pulse to the control unit 20 of the portable device 10. Note that the vehicle speed pulse may not be input to the in-vehicle device 100.

  The decrypting unit 141 is composed of an IC that decrypts the encrypted authentication data. The decrypting unit 141 decrypts the encrypted authentication data input from the external device 200 via the portable device 10 and outputs the decrypted result to the external device 200 via the portable device 10. The power supply to the decryption unit 141 and the operation of the decryption unit 141 are controlled by the control unit 140.

  Next, the portable device 10 will be described. The portable device 10 includes a display unit 11 (display unit), an operation unit 12, a GPS information receiving unit 13, a speaker 14, a storage battery 15, a charging circuit 16, a wireless communication transmitting / receiving unit 17, a memory 18, a navigation unit 19, and a control unit 20 ( 2nd transmission / reception means) and the connector 30 are provided.

  The display unit 11 includes a liquid crystal panel and a backlight. The map information generated by the navigation unit 19 and the guide route information to the destination, the received broadcast frequency transferred from the in-vehicle device 100, the playback music track No., and The playback music name and the like can be displayed. The display unit 11 displays moving image data input from the external device 200 via the in-vehicle device 100.

  For the display units 11 and 131, a flat panel display other than the liquid crystal panel, for example, an organic EL display panel, a plasma display panel, a cold cathode flat panel display, or the like can be used.

  The operation unit 12 includes a power button 55 (see FIG. 7A) for turning on and off the touch panel and the portable device 10. For example, the touch panel is arranged on the display screen of the display unit 11. When the touch panel is touched with a finger or a dedicated pen, the touched position is detected and the presence or absence of an input operation is determined. It can be done. The power button 55 will be described later.

  The GPS information receiving unit 13 includes an antenna and a tuner unit, and receives a GPS signal from a satellite. The received GPS signal is output to the navigation unit 19, and its own position is determined based on the GPS signal. The in-vehicle device 100 is also provided with the GPS information receiving unit 133. However, when the portable device 10 is attached to the in-vehicle device 100, the GPS signal (and vehicle speed pulse) received by the GPS information receiving unit 133 is used. When the position of the vehicle on which the in-vehicle device 100 in which the portable device 10 is housed is mounted is used and the portable device 10 is used alone, the position of the own device is determined using the GPS signal received by the GPS information receiving unit 13. Identify.

  The speaker 14 is for outputting audio information from the navigation unit 19, and outputs audio information when the portable device 10 is detached from the in-vehicle device 100, that is, when used alone.

  The storage battery 15 supplies power to each part of the portable device 10 when the portable device 10 is detached from the in-vehicle device 100. When the portable device 10 is attached to the in-vehicle device 100, power is supplied from the vehicle battery via the power supply terminal of the connector 30, and the storage battery 15 is charged by the charging circuit 16. Further, the charging circuit 16 can charge the storage battery 15 by receiving power from the connected terminal via the USB slot 57 (see FIG. 7A).

  The wireless communication transmitting / receiving unit 17 transmits / receives call voice to / from a mobile phone or acquires information used for navigation via the mobile phone. For the wireless communication transmitter / receiver 17, for example, Bluetooth, which is a wireless transmission system of 2.4 GHz band, is used.

  The memory 18 is, for example, a RAM that can be read and written, and temporarily stores information read for each control.

  The navigation unit 19 includes a map information storage unit that acquires and stores the information from an SD (Secure Digital) card or a USB memory that stores map information used for navigation. The GPS information reception unit 133 or the GPS from the GPS information reception unit 13 stores the map information. The current position information is determined by the signal, and a map image for navigation is created. The created map image can be displayed on the display unit 11. Further, when the in-vehicle device 100 and the portable device 10 are connected, the vehicle speed pulse is acquired from the vehicle to improve the accuracy of position detection of the vehicle in which the in-vehicle device 100 in which the portable device 10 is housed is mounted. be able to. The map information may be held in the portable device 10.

  The control unit 20 controls each unit of the portable device 10. Further, the control unit 20 outputs various signals to the in-vehicle device 100 via the connector 30, and controls the portable device 10 based on the various signals input from the in-vehicle device 100. For example, the control unit 20 acquires the GPS signal and the vehicle speed pulse received by the GPS information receiving unit 133 of the in-vehicle device 100 from the control unit 140 of the in-vehicle device 100 and outputs them to the navigation unit 19.

  Moreover, the control part 20 acquires the audio | voice data input with the microphone 138 of the vehicle equipment 100 from the control part 140 of the vehicle equipment 100, and controls the navigation part 19 according to the acquired audio | voice data. That is, the navigation unit 19 can be operated hands-free. In addition, the call voice from the mobile phone connected by the wireless communication transmitting / receiving unit 17 is output to the in-vehicle device side via the connector 30 and is output from the speaker 145 of the in-vehicle device 100.

  In addition, an operation signal for the menu screen and the content screen displayed on the display unit 11 is output to the control unit 140 of the in-vehicle device 100 via the connector 30. The control unit 140 controls the radio reception unit 134 and the playback unit 135 according to the operation signal sent from the control unit 20 of the portable device 10. In addition, the control unit 20 causes the display unit 11 to display moving image data input from the external device 200 via the in-vehicle device 100.

  FIG. 7A shows a front view, a top view, a bottom view, a left side view, and a right side view of the portable device 10, and FIG. 7B shows a rear view of the portable device 10.

  A power button 55 for turning on / off the portable device is provided on the top surface of the portable device 10, and an SD memory card slot 56, a USB slot 57, and an earphone jack 58 are provided on the bottom surface of the portable device 10. It has been. 2 is provided on the left side surface of the portable device 10, and a connector 30 for electrical connection with the in-vehicle device 100 is provided on the back surface of the portable device 10. Is provided. Further, on the bottom surface and the back surface of the portable device 10, an engaging portion 60 that engages with the pushing portion 164 of FIG. 2 is provided.

  By inserting the SD card or USB memory storing the map information into the SD memory card slot 56 or the USB slot 57, the control unit 20 reads the map information from the SD card or the USB memory, and sends the map information to the navigation unit 19. Output.

  When the portable device 10 is mounted on the in-vehicle device 100, the power source of the portable device 10 is turned on or off under the control of the in-vehicle device 100. Further, when the portable device 10 is used alone by being detached from the in-vehicle device 100, the power source is operated based on the on / off operation of the power button 55.

  FIG. 8 is a flowchart illustrating processing executed by the in-vehicle device 100, the portable device 10, and the external device 200.

  First, the control unit 20 of the portable device 10 detects the connection of the external device 200 to the in-vehicle device 100 (step S1). Specifically, when the control unit 20 receives a connection signal from the external device 200, the connection of the external device 200 to the in-vehicle device 100 is detected.

  Next, the external device 200 transmits the encrypted authentication data to the control unit 20 via the USB cables 185 and 201 and the connectors 30 and 150 (step S2). The control unit 20 receives the encrypted authentication data from the external device 200 and transmits it to the control unit 140 of the in-vehicle device 100 (step S3).

  The control unit 140 receives the encrypted authentication data from the control unit 20 and transmits it to the decryption unit 141 (step S4). The decryption unit 141 decrypts the encrypted authentication data and transmits the decryption result to the control unit 140 (step S5). The control unit 140 receives the decoding result from the decoding unit 141 and transmits it to the control unit 20 (step S6).

  The control unit 20 receives the decoding result from the control unit 140 and transmits it to the external device 200 (step S7). The external device 200 receives the decryption result from the control unit 20, and determines whether or not the decryption result matches the pre-registered unencrypted authentication data (step S8).

  If NO in step S8, this process ends. If YES in step S8, the external device 200 transmits the audio data to be reproduced or the moving image data to be reproduced to the control unit 20 (step S9). When the audio data to be reproduced is transmitted to the control unit 20 in step S9, the control unit 20 receives the audio data to be reproduced from the external device 200 and transmits it to the control unit 140 (step S10). The control unit 140 receives the audio data to be reproduced from the control unit 20 and transmits it to the audio adjustment unit 136 (step S11). The audio adjustment unit 136 receives the audio data to be reproduced from the control unit 140, performs processing such as volume adjustment and sound quality adjustment on the audio data to be reproduced, and outputs it to the outside through the speaker 145 (step 12). ).

  When the moving image data to be reproduced is transmitted to the control unit 20 in step S9, the control unit 20 receives the moving image data to be reproduced from the external device 200 and causes the display unit 11 to display the moving image data. (Step S13).

  The reason why the encrypted authentication data and audio data are not directly transmitted from the external device 200 to the control unit 140 is that the control unit 20 of the portable device 10 can control the operation of the external device 200. This is because the operation of the external device 200 cannot be controlled.

  According to the present embodiment, the in-vehicle device 100 includes a portable device 10 that controls the operation of the external device 200 that outputs encrypted authentication data, a connector 150 that is physically and electrically detachable, and one end. Is connected to the connector 150, the other end is connected to the external device 200, the decryption unit 141 that decrypts the encrypted authentication data, the portable device 10 that is attached to the connector 150, and the USB cable 185. And receiving the encrypted authentication data from the external device 200 via the portable device 10 and the USB cable 185 attached to the connector 150, and the decryption result of the encrypted authentication data by the decryption unit 141. And a control unit 140 that transmits to the external device 200.

  Therefore, the encrypted authentication data output from the external device 200 can be decrypted. In addition, since the portable device 10 does not include the decrypting unit 141, the portable device 10 that is detached from the in-vehicle device 100 and can be used alone can be reduced in weight and size. The in-vehicle device 100 transmits / receives the encrypted authentication data and the decryption result to / from the external device 200 using an existing communication line (including the connectors 30 and 150) that connects the portable device 10 and the in-vehicle device 100 to each other. be able to. Further, since the in-vehicle device 100 decrypts the encrypted authentication data and transmits the decryption result to the external device 200, the in-vehicle device 100 can assist the authentication process executed by the external device 200.

  Further, whether or not to operate the decoding unit 141 can be controlled by the control 140.

  Furthermore, the control unit 140, the volume adjustment unit 136, and the speaker 145 are connected from the external device 200 via the portable device 10 after the decryption result matches the unencrypted authentication data registered in the external device 200 in advance. The received music data is output, and the display unit 11 displays the image data received from the external device 200 after the decryption result matches the unencrypted authentication data registered in the external device 200 in advance. To do. Therefore, after successful authentication of the authentication data by the external device 200, the in-vehicle device 100 can output music data received from the external device 200, and the portable device 10 can receive an image received from the external device 200. Data can be displayed.

(Second Embodiment)
In the first embodiment, the encrypted authentication data is received by the decryption unit 141 via the connectors 30 and 150 and the control unit 140, or the decryption result of the encrypted authentication data is the connector 30. , 150 and the control unit 140 are transmitted from the decoding unit 141. On the other hand, in the present embodiment, the encrypted authentication data and the decryption result thereof are communicated between the in-vehicle device 100 and the portable device 10 via a dedicated communication line.

  FIG. 9 is a block diagram illustrating a schematic configuration of the in-vehicle system 1 according to the second embodiment.

  In FIG. 9, a connector 151 is connected to the decoding unit 141 of the in-vehicle device 100 via a communication line. A connector 31 is connected to the control unit 20 of the portable device 10 via a communication line. When the portable device 10 is attached to the in-vehicle device 100, the connector 30 and the connector 150 are connected, and the connector 31 and the connector 151 are further connected. The encrypted authentication data and its decryption result are communicated via communication lines and connectors 31 and 151 connecting the decryption unit 141 and the control unit 20.

  The other configuration of the in-vehicle system 1 in FIG. 9 is the same as the configuration of the in-vehicle system 1 in FIG.

  FIG. 10 is a flowchart showing processing executed by the in-vehicle device 100, the portable device 10, and the external device 200.

  In the flowchart of FIG. 10, the same steps as those in FIG. 8 are denoted by the same step numbers, and the description thereof is omitted.

  When the encrypted authentication data is transmitted to the control unit 20 in step S2, the control unit 20 receives the encrypted authentication data from the external device 200 and receives the in-vehicle device via the connectors 31 and 151. The data is directly transmitted to the decoding unit 141 of 100 (step S21). The decrypting unit 141 of the in-vehicle device 100 decrypts the encrypted authentication data and transmits the decrypted result to the control unit 20 of the portable device 10 via the connectors 31 and 151 (step S22). The control unit 20 receives the decoding result from the decoding unit 141, transmits it to the external device 200 via the connectors 30 and 150 and the USB cable 185 (step S23), and proceeds to the process of step S8.

  According to the present embodiment, the decrypting unit 141 is different from the connectors 30 and 150, and via a dedicated line (that is, a communication line including the connectors 31 and 151) for communicating the encrypted authentication data and the decrypted result. Directly connected to the control unit 20. Therefore, since the encrypted authentication data and the decryption result thereof are communicated between the portable device 10 and the in-vehicle device 100 via a dedicated line, the encrypted authentication data and the decryption result thereof are communicated at high speed. can do.

  The above-described implementation can also be realized by supplying a recording medium in which a software program for realizing the function of the in-vehicle device 100 is recorded to the in-vehicle device 100 and the control unit 140 reads and executes the program stored in the storage medium. The same effect as that of the embodiment is produced. Examples of the storage medium for supplying the program include a CD-ROM, a DVD, or an SD card.

  The control unit 140 of the in-vehicle device 100 also achieves the same effect as the above embodiment by executing software programs for realizing the functions of the in-vehicle device 100, respectively.

  The present invention is not limited to the in-vehicle device as in the above-described embodiment, and can be implemented with various modifications to other electronic devices and the like without departing from the gist thereof.

It is a figure which shows the external appearance shape of the electronic system containing the electronic device which concerns on the 1st Embodiment of this invention. It is a figure which shows the front part of the vehicle equipment from which the portable apparatus was removed. It is a figure which shows the state which inclined the front-surface part with respect to the main-body part, and exposed the insertion / extraction port. It is a figure which shows the example of mounting to a vehicle of a vehicle-mounted system. It is a block diagram which shows schematic structure of a vehicle-mounted system. It is a figure which shows the structure of the front part of vehicle equipment. (A) is a front view, a top view, a bottom view, a left side view, and a right side view of the portable device, and (B) is a rear view of the portable device. 4 is a flowchart illustrating processing executed by the in-vehicle device 100, the portable device 10, and the external device 200. It is a block diagram which shows schematic structure of the vehicle-mounted system which concerns on 2nd Embodiment. 4 is a flowchart illustrating processing executed by the in-vehicle device 100, the portable device 10, and the external device 200.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 In-vehicle system 10 Portable apparatus 11,131 Display part 12,132 Operation part 13,133 GPS information receiving part 14,145 Speaker 15 Storage battery 16 Charging circuit 17 Wireless communication transmission / reception part 18,137 Memory 19 Navigation part 20,140 Control part 30 , 150 Connector 110 Main body 120 Front surface 134 Radio reception unit 135 Playback unit 136 Audio adjustment unit 139 External audio / video input unit 141 Decoding unit 185, 201 USB cable 186, 202 USB terminal 200 External device

Claims (5)

A detachable means that is physically and electrically detachable from a portable device that controls the operation of an external device that outputs encrypted authentication data;
A connection means having one end connected to the attachment / detachment means and the other end connected to the external device;
Decryption means for decrypting the encrypted authentication data;
The encrypted authentication data is received from the external device via the portable device attached to the attaching / detaching means and the connecting means, and the decryption result of the encrypted authentication data by the decrypting means is received. An electronic device comprising: a portable device attached to the attachment / detachment means; and a transmission / reception means for transmitting to the external device via the connection means.   2. The electronic apparatus according to claim 1, further comprising control means for controlling power supply to the decoding means and operation of the decoding means. A first attaching / detaching means physically and electrically attachable to and detachable from a portable device that controls the operation of an external device that outputs encrypted authentication data;
A connection means having one end connected to the attachment / detachment means and the other end connected to the external device;
Decryption means for decrypting the encrypted authentication data;
A portable device that receives the encrypted authentication data from the external device via the portable device attached to the attachment / detachment means and the connection means, and that is attached to the attachment / detachment means by the decryption result by the decryption means And an electronic device having a first transmitting / receiving means for transmitting to the external device via the connecting means, and a second attaching / detaching means physically and electrically attachable to and detachable from the first attaching means,
The encrypted authentication data is received from the external device via the connection means, the first attachment / detachment means, and the second attachment / detachment means, and the encryption data is received via the first attachment / detachment means and the second attachment / detachment means. The authentication data is transmitted to the first transmission / reception means, and the decryption result is received from the first transmission / reception means via the first attachment / detachment means and the second attachment / detachment means. An electronic system comprising: a portable device comprising: a first transmission / reception unit configured to transmit to the external device via the first attachment / detachment unit and the second attachment / detachment unit.   The decryption means is different from the first attachment / detachment means and the second attachment means, and is directly connected to the second transmission / reception means via a dedicated line for communicating the encrypted authentication data and the decryption result. The electronic system according to claim 3. The electronic device outputs the music data received from the external device via the portable device after the decryption result matches the unencrypted authentication data registered in the external device in advance. With means,
The mobile device includes display means for displaying image data received from the external device after the decryption result matches the unencrypted authentication data registered in the external device in advance. The electronic system according to claim 3 or 4.

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