JP2005079964A - Communication device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and quickly control a non-contact communication unit built in or attached to a communication device via an external interface by an external device such as a PC.
A changeover switch 30, 31, 32 is provided between a first communication unit 7 and an external interface 20 and between a second communication unit 4 and a non-contact IC card unit 10, and the external interface 20 It is possible to switch to a non-contact communication unit connection mode for connecting the non-contact IC card unit 10. When a serial command for accessing the non-contact IC card unit 10 is input from the external device 50 to the external interface 20, the change-over switches 30 to 32 are switched to enter the non-contact communication unit connection mode. The card unit 10 bypasses the communication processing unit 100 and is directly connected via the signal lines 120 and 130, and the non-contact IC card unit 10 can be directly controlled from the external device 50 without using the communication processing unit 100.
[Selection] Figure 1

Description

  The present invention communicates with other communication devices, and can communicate data with a non-contact IC card unit that is built-in or mounted, and can be connected to an external device such as a PC via an external interface. The present invention relates to a communication device that is applied to possible information terminal devices, mobile phone devices, and the like.

  Communication devices such as mobile phone devices using various wireless communication systems such as GSM, PDC, and CDMA, and information terminal devices (PDAs) having communication functions, such as an external PC (personal computer) by an external interface prepared in the communication device Can be connected to and exchange data. A connected PC or the like can read and write the wireless control information of the communication device and the information in the telephone directory.

  In recent years, such communication devices include a non-contact IC card that is built in or mounted so that data can be transmitted to and received from the non-contact IC card (for example, Patent Document 1). , See Patent Document 2).

  A non-contact IC card normally includes an IC chip that can write and read information from the outside, an antenna for writing and reading information by non-contact communication, and the like, and a dedicated read / write device (reader / reader). Information can be written and read out in a non-contact manner simply by being close to the writer device. Such contactless IC cards can be used for contact fare adjustment at ticket gates for transportation, etc., visitor management at events, vending machine fee settlement, fee settlement with electronic money at stores, etc. It operates to perform data communication with the reader / writer device, and can perform processing such as authentication and settlement.

  In addition, in a communication device having such a non-contact IC card built-in or attached, the user inputs a key button to check the balance of the non-contact IC card and displays the balance of the non-contact IC card. Can be displayed. Furthermore, an external device such as a PC can be connected to the communication device, and data such as initial settings can be written to and read from the non-contact IC card by the external device.

  However, with a conventional communication device, if a non-contact IC card is built in or mounted, the non-contact IC card cannot be controlled directly from an external device such as a PC. For example, when writing operation parameters, manufacturing numbers, etc., it takes time to write and read data to and from the non-contact IC card.

  That is, when an external device such as a PC connected to the communication device writes data to the non-contact IC card, the communication device once captures the data via the external interface and stores it in the memory. A process of writing this data to the non-contact IC card is performed. When data is read, the communication device once reads the data stored in the non-contact IC card and stores it in the memory, and the data is read via the external interface. As described above, since two-stage processing is required to write and read data from an external device, it takes time to read and write data used for setting for a non-contact IC card, and the efficiency is poor.

  In addition, in order to newly set or change the setting of the non-contact IC card, it is necessary to change the program ROM of the communication device in order to add the function setting of the non-contact IC card. In some cases, it took a long time to check and confirm the operation. Furthermore, for example, when all the function settings for operating a non-contact IC card are performed via an external interface, a storage capacity for storing a large amount of data in the program ROM of the communication device is necessary, and program development Since time increases, it is costly and inefficient.

JP-A-2002-247157 (FIGS. 1, 2, and 7) JP 2002-351623 A (FIGS. 1 to 6)

  The present invention has been made in view of the above circumstances, and it is possible to easily and quickly control a non-contact communication unit built in or attached to a communication device by an external device such as a PC via an external interface. An object is to provide a communication device.

  The communication device of the present invention is a communication device that communicates with other communication devices, and performs communication processing within the device including a non-contact communication unit that performs data communication by non-contact communication, and the non-contact communication unit A non-contact communication unit connection mode that bypasses the communication processing unit and connects the external interface and the non-contact communication unit. is there.

  With this configuration, in the non-contact communication unit connection mode, the external interface and the non-contact communication unit are connected by bypassing the communication processing unit. Therefore, an external device such as a PC is connected to the external interface to perform communication. The non-contact communication unit built in or attached to the device can be directly accessed from an external device without going through the communication processing unit, and can be controlled easily and quickly.

  Further, as one aspect of the present invention, the communication device includes a switching unit that switches a signal path between the external interface and the non-contact communication unit, and the switching unit includes the external interface and the A non-contact communication unit connection mode for connecting a non-contact communication unit by bypassing the communication processing unit, and a non-contact communication unit release mode for connecting the external interface and the non-contact communication unit via the communication processing unit The thing which switches between and is also included.

  With this configuration, it is possible to switch between the non-contact communication unit connection mode and the non-contact communication unit release mode by switching the signal path between the external interface and the non-contact communication unit by the switching unit. In the non-contact communication unit connection mode, the non-contact communication unit can be directly controlled from an external device such as a PC. In the non-contact communication unit release mode, the external device and the communication processing unit can be controlled. It is possible to exchange data and the like between them and to control the non-contact communication unit from the external device via the communication processing unit.

  Moreover, as one aspect of the present invention, there is also a communication device as described above, wherein the switching unit switches to the non-contact communication unit connection mode by processing of the communication processing unit based on a serial command from the external interface. included.

  In this configuration, based on the serial command from the external interface, switching control of the switching means can be performed by processing of the communication processing unit to switch to the non-contact communication unit connection mode, so the hardware configuration of the external interface should be added It is possible to switch the operation mode easily.

  In addition, as an aspect of the present invention, the above-described communication device includes the switching unit that switches to the non-contact communication unit connection mode by a switching signal from the external interface.

  In this configuration, switching control of the switching means can be performed by a switching signal from the external interface and switching to the non-contact communication unit connection mode can be performed, so that the operation mode can be switched quickly without going through the processing of the communication processing unit. Is possible.

  Advantageous Effects of Invention According to the present invention, it is possible to provide a communication device that can easily and quickly control a non-contact communication unit built in or attached to a communication device by an external device such as a PC via an external interface. .

In the present embodiment, a configuration example applied to a mobile phone device as an example of a communication device will be described.
(First embodiment)
FIG. 1 is a diagram showing a configuration of a mobile phone device according to the first embodiment of the present invention. The cellular phone device according to the present embodiment has a communication function for performing wireless communication with other communication devices such as a base station of a mobile communication system and transmitting and receiving voice and data by a wireless communication unit (not shown). ing. In addition, the cellular phone device includes a non-contact IC card unit 10 corresponding to an example of a non-contact communication unit including an IC that can write and read data by proximity or short-range non-contact communication in a housing. In preparation.

  A control processing unit (CPU) 1 composed of a processor that performs various processes, a ROM 2 that stores a program, fixed data, and the like of the control processing unit 1, and arbitrarily reads and writes data during the processing operation of the control processing unit 1. A RAM 3 is provided as a working memory. In addition, a first communication unit (UART1, UART: Universal Asynchronous Receiver Transmitter) 7 that performs parallel / serial conversion of a signal for controlling the cellular phone device from an external device 50 such as a PC (personal computer), a non-contact IC card unit A second communication unit (UART2) 4 for parallel / serial conversion of a signal or the like for controlling 10; a key / display interface (KEY / LCD IF) 5 for exchanging signals between the operation unit 22 and the display unit 21; An input / output port (PIO: Programmed I / O) 6 for exchanging signals with the interface 20 is provided.

  The control processing unit 1, ROM 2, RAM 3, second communication unit 4, key / display interface 5, input / output port 6, and first communication unit 7 are connected via an internal bus 8 and include these. A device that performs communication processing in the apparatus is referred to as a communication processing unit 100.

  Connected to the key / display interface 5 are an operation unit 22 including input operation keys and a display unit 21 including a liquid crystal display (LCD). The second communication unit 4 is connected to the transmission data terminal (SD) and the reception data terminal (RD) of the non-contact IC card unit 10 incorporated in the mobile phone device via the changeover switches 30 and 31. . The first communication unit 7 is directly connected to the serial data input terminal (SDIN) of the external interface 20 for connecting to an external device 50 such as a PC, and the serial data output terminal (SDOUT) of the external interface 20. It is connected via the changeover switch 32.

  The change-over switches 30, 31, and 32 correspond to an example of a change-over means, and a signal line 110 for a switch change-over signal for performing change-over control is connected to a control terminal S of each switch. Further, the A-side switching terminal of the changeover switch 30 and the A-side switching terminal of the changeover switch 32 are connected by a signal line 130. The switching terminal on the B side of the changeover switch 30 is connected to the second communication unit 4, and the common terminal is connected to the transmission data terminal (SD) of the non-contact IC card unit 10. Further, the A-side switching terminal of the changeover switch 31 and the serial data input terminal (SDIN) of the external interface 20 are connected by a signal line 120. The switching terminal on the B side of the changeover switch 31 is connected to the second communication unit 4, and the common terminal is connected to the reception data terminal (RD) of the non-contact IC card unit 10. A switching terminal on the B side of the changeover switch 32 is connected to the first communication unit 7, and a common terminal is connected to a serial data output terminal (SDOUT) of the external interface 20. The signal lines 110, 120, and 130 are all provided outside the communication processing unit 100.

  As the external interface 20, a wired connection interface such as a serial interface or a USB (Universal Serial Bus) interface, a wireless connection interface such as an infrared communication interface or a wireless LAN interface, a memory card slot interface, or the like can be used.

  In this cellular phone device, the communication processing unit 100 performs wireless communication with a base station via a wireless communication unit (not shown) regardless of operation modes such as a non-contact communication unit connection mode and a non-contact communication unit release mode described later. Voice communication, data communication, etc., and non-contact type data communication with an external reader (reader / writer device) (not shown) by the non-contact IC card unit 10 for settlement processing, etc. It can be performed. The non-contact IC card unit 10 can, for example, settle a fare at a transportation ticket gate or pay a fare at a store cash register.

  Next, the operation of the mobile phone device according to the first embodiment configured as described above will be described. First, the non-contact communication part cancellation mode which is a normal state is demonstrated. In this case, the switching terminals of the changeover switches 30, 31, 32 are connected to the B contact side. The serial data input terminal (SDIN) of the external interface 20 is directly connected to the first communication unit 7, and the serial data output terminal (SDOUT) is connected to the first communication unit 7 via the changeover switch 32. The For this reason, the external device 50 such as a PC connected to the external interface 20 is connected to the communication processing unit 100 having the control processing unit 1 via the first communication unit 7, and the external device 50 is connected to the external interface 50. Data communication can be performed with the communication processing unit 100 via the communication unit 20.

  On the other hand, the transmission data terminal (SD) and the reception data terminal (RD) of the non-contact IC card unit 10 are connected to the second communication unit 4 via the changeover switches 30 and 31, respectively. For this reason, the non-contact IC card unit 10 is connected to the communication processing unit 100 via the second communication unit 4, and the communication processing unit 100 exchanges data and commands with the non-contact IC card unit 10. It is possible to perform exchange and control such as setting of the non-contact IC card unit 10 and data writing.

  Therefore, in the non-contact communication unit release mode, if the external device 50 connected to the external interface 20 performs data writing, reading, setting, etc. to the non-contact IC card unit 10, the first The non-contact IC card unit 10 is accessed via the communication unit 7, the communication processing unit 100, and the second communication unit 4. In this case, processing by the communication processing unit 100 is involved, and the non-contact IC card unit 10 cannot be directly controlled from the external device 50.

  In the evaluation analysis at the design stage of the mobile phone device, the manufacturing process in the factory, the repair in the service department, etc., data may be written to, read from, set to the non-contact IC card unit by an external device. Specifically, there are the following cases, for example.

(1) When shipping processing related to a non-contact IC card unit at a factory or service center. For example, when performing processing such as writing operation parameters, serial numbers, etc. so that the non-contact IC card unit can be used.

(2) When the cellular phone device and the non-contact IC card unit are used for experiments and evaluations. For example, the mobile phone device is set in the transmission state, the non-contact IC card unit is operated, the relationship between the communication distance of the non-contact IC card unit and the mobile phone transmission output is measured, or the microcomputer on the non-contact IC card unit is connected. When used to monitor the reception status of mobile phone devices (measurement of reception sensitivity degradation).

(3) When used in factory process tests for non-contact IC card part component tests and mounting defect confirmation operation tests, non-contact IC card part assembly confirmation, and forgetting to install.

(4) When the circuit of the control processing unit including the CPU of the mobile phone device and the circuit of the non-contact IC card unit are combined into one module in the same module, or when they are built in a one-chip LSI and used as a test circuit.

  In such a case, it is convenient if data can be written by accessing the non-contact IC card unit directly from an external device, which saves labor and time.

  In the present embodiment, when the external device 50 performs data writing, reading, setting, or the like with respect to the non-contact IC card unit 10, a signal is obtained by switching the changeover switches 30, 31, and 32 by a control command from the external device 50. It is possible to switch the route and switch the mobile phone device to the non-contact communication unit connection mode.

  When an operator connects the external device 50 to the external interface 20 and performs an operation for writing or reading data on the non-contact IC card unit 10, the non-contact communication unit connection mode is set as a control command from the external device 50. A mode switching command to is output. This mode switching command is input to the external interface 20 as a serial command and transmitted from the serial data input terminal (SDIN) to the first communication unit 7. The first communication unit 7 converts the input serial data mode switching command into a parallel data command.

  At this time, the control processing unit 1 controls the first communication unit 7 and the second communication unit 4 via the internal bus 8 and reads commands and data transmitted and received by these communication units. In this case, the control processing unit 1 reads the mode switching command input to the first communication unit 7 and switches to the non-contact communication unit connection mode in which the non-contact IC card unit 10 can be directly accessed. A switch switching signal PSW is output to switch the signal line 110 from L (low level) to H (high level).

  As a result, the switch switching signal PSW supplied to the control terminals S of the changeover switches 30, 31, 32 via the signal line 110 changes from L to H, and the changeover terminals of the changeover switches 30, 31, 32 from the B contact side. Switch to the A contact side to enter the non-contact communication unit connection mode.

  Here, the operation in the non-contact communication unit connection mode will be described. In the non-contact communication unit connection mode, the serial data input terminal (SDIN) of the external interface 20 is connected to the reception data terminal (RD) of the non-contact IC card unit 10 through the changeover switch 31 together with the first communication unit 7. The serial data output terminal (SDOUT) is connected to the transmission data terminal (SD) of the non-contact IC card unit 10 via the changeover switches 32 and 30.

  In this case, data input from the external device 50 to the external interface 20 and transmitted from the serial data input terminal (SDIN) is received by the non-contact IC card unit 10 via the signal line 120 and the contact A of the changeover switch 31. The received data is input to the data terminal (RD). That is, the data received by the non-contact IC card unit 10 is transmitted to the non-contact IC card via the first communication unit 7, the communication processing unit 100, the signal line 120 that bypasses the second communication unit 4, and the changeover switch 31. Is transmitted to the unit 10.

  Further, transmission data transmitted from the transmission data terminal (SD) of the non-contact IC card unit 10 is serially connected to the external interface 20 via the contact A of the changeover switch 30, the signal line 130, and the contact A of the changeover switch 32. The data is input to the data output terminal (SDOUT) and transmitted to the external device 50. That is, transmission data from the non-contact IC card unit 10 passes through the second communication unit 4, the communication processing unit 100, the changeover switch 30 that bypasses the first communication unit 7, the signal line 130, and the changeover switch 32. It is transmitted to the external interface 20.

  Therefore, the external device 50 connected to the external interface 20 can directly access the non-contact IC card unit 10 without performing processing in the communication processing unit 100, and can control data writing, reading, setting, and the like.

  Then, when a mode switching command to the non-contact communication unit release mode is output from the external device 50 as a control command due to an operator's termination operation or the like, the mode switching command is input to the external interface 20 as a serial command, The data is transmitted from the serial data input terminal (SDIN) to the first communication unit 7. Even when the external device 50 is detached from the external interface 20 and is in a disconnected state, a mode switching command to the non-contact communication unit release mode may be output in the same manner.

  In this case, the control processing unit 1 reads the mode switching command input to the first communication unit 7 and switches to the non-contact communication unit release mode for canceling direct access to the non-contact IC card unit 10. 6 to switch the switch switching signal PSW output to the signal line 110 from H to L. As a result, the switch switching signal PSW supplied to the control terminal S of the changeover switches 30, 31, 32 via the signal line 110 changes from H to L, and the changeover terminals of the changeover switches 30, 31, 32 are moved from the A contact side. Switch to the B contact side to enter the non-contact communication part release mode.

  Note that the external device 50 may not access the non-contact IC card unit 10 such as transmitting and receiving data to and from the communication processing unit 100 via the external interface 20. In such a case, the control processing unit 1 recognizes the serial command from the external interface 20 via the first communication unit 7 and accesses the communication processing unit 100, or the non-contact IC card unit It is sufficient to determine whether the access is to 10 or the like and perform the processing appropriately. For example, when there is a serial command or the like to the control processing unit 1 in the non-contact communication unit connection mode, the mode may be switched to the non-contact communication unit release mode.

  In the first embodiment, change-over switches 30, 31, and 32 for switching the connection between the external interface 20 and the first communication unit 7, the non-contact IC card unit 10 and the second communication unit 4 are provided. By switching between 30, 31, and 32, the external interface 20 and the non-contact IC card unit 10 are connected by bypassing the communication processing unit 100, and a non-contact communication unit connection mode that enables direct access is provided. Thereby, in the non-contact communication unit connection mode, data communication can be performed directly from the external device 50 to the non-contact IC card unit 10 via the external interface 20, and data can be written to the non-contact IC card unit 10. In addition, it is possible to easily perform control such as reading data from the non-contact IC card unit 10.

  In particular, in the first embodiment, the control processing unit 1 recognizes a mode switching command input from the external device 50 to the external interface 20 and outputs a switch switching signal PSW from the input / output port 6 to output a non-contact communication unit. Since the mode is switched to the connection mode, it is possible to use the same external interface as provided conventionally. For this reason, although the software in the ROM 2 for operating the control processing unit 1 needs to be designed and changed for the switch switching signal control, the hardware of the circuit and connector of the external interface 20 can be used as they are. The non-contact IC card unit 10 can be controlled from the outside without much cost.

  Conventionally, for example, when a non-contact IC card unit is mounted on a mobile phone device, it is not assumed that functions of the non-contact IC card unit are added or changed, and the non-contact IC card unit written in the shipping process is simply incorporated. In this case, since it is not possible to directly access the non-contact IC card unit from the outside in order to rewrite the settings at the time of shipping processing later, the mobile phone device is disassembled and the non-contact IC card unit is taken out to add or change functions. It was necessary to do. In addition, even if an external device is connected and rewritten, it is necessary to perform data communication with the non-contact IC card unit through processing such as an internal control processing unit, which takes time and effort.

  On the other hand, according to the present embodiment, the external interface 20 and the non-contact IC card unit 10 are connected without the communication processing unit 100 interposed, and the non-contact IC is directly connected from the external device 50 via the external interface 20. By allowing data to be written to and read from the card unit 10, processing time in the communication processing unit 100 can be saved, and functions of the non-contact IC card unit 10 can be added and changed easily and quickly. it can.

  In the first embodiment described above, when the control processing unit 1 detects a serial command (mode switching command) for directly accessing the non-contact IC card unit 10 from the external interface 20, it immediately enters the input / output port 6. An instruction is issued and a high level is output as the switch switching signal PSW to switch the change-over switches 30, 31, and 32 to enter the non-contact communication unit connection mode. However, the present invention is not limited to this. For example, when the external device 50 is connected to the external interface 20, whether or not the control processing unit 1 detects the connection state based on a signal or the like in the external interface 20 and shifts to the non-contact communication unit connection mode on the display unit 21. It is also possible to display the confirmation screen, to allow the operator to confirm whether or not to shift to the non-contact communication unit connection mode, and to switch the operation mode by the operator's operation input. In this case, when the operator selects the transition to the non-contact communication unit connection mode using the operation unit 22 or the like, the control processing unit 1 issues an instruction to the input / output port 6 and switches to the changeover switches 30, 31, and 32. A switching signal is output to switch the connection of the switch terminals.

(Second Embodiment)
FIG. 2 is a diagram showing a configuration of a mobile phone device according to the second embodiment of the present invention. The configuration of the mobile phone device of the second embodiment is almost the same as the configuration of the mobile phone device of the first embodiment shown in FIG. 1, and only the differences will be described in detail.

  The second embodiment is an example in which the path of the signal line 140 for a switch switching signal input to each control terminal S of the changeover switches 30, 31, 32 is changed and connected to the external interface 40. In the first embodiment described above, the control processing unit 1 processes the mode switching command based on the serial command output from the external interface 20 via the first communication unit 7 and outputs the switch switching signal output from the input / output port 6. While the changeover switches 30, 31, and 32 are switched by the PSW to shift to the non-contact communication unit connection mode, in the second embodiment, each switch directly by the switch change signal HSW from the external interface 40. The changeover switches 30, 31, and 32 are switched to shift to the non-contact communication unit connection mode.

  When the external device 50 is connected to the external interface 40 and a mode switching command to the non-contact communication unit connection mode is input as a control command from the external device 50, the external interface 40 detects this mode switching command, A switch switching signal HSW is output to the signal line 140 connected to the control terminal S of the changeover switches 30, 31, 32, and the signal line 140 is switched from L to H.

  As a result, the switch switching signal HSW supplied to the control terminal S of the changeover switches 30, 31, 32 via the signal line 140 changes from L to H, and the changeover terminals of the changeover switches 30, 31, 32 from the B contact side. Switch to the A contact side to enter the non-contact communication unit connection mode.

  Also in this case, as in the first embodiment, in the non-contact communication unit connection mode, data communication is performed directly from the external device 50 to the non-contact IC card unit 10 via the external interface 40, and the communication processing unit 100. Writing, reading, and the like can be performed without going through the processing in.

  When the mode switching command to the non-contact communication unit release mode is input from the external device 50 to the external interface 40 as a control command by the operator's termination operation or the like, the external interface 40 switches to the signal line 140. The switching signal HSW is switched from H to L. As a result, the switch switching signal HSW supplied to the control terminal S of the changeover switches 30, 31, 32 via the signal line 140 changes from H to L, and the changeover terminals of the changeover switches 30, 31, 32 from the A contact side. Switch to the B contact side to enter the non-contact communication part release mode. Note that, when the external device 50 is disconnected from the external interface 40 and is not connected, the switch switching signal HSW may be set to L similarly.

  In the second embodiment, as in the first embodiment, in the non-contact communication unit connection mode, direct data communication is possible from the external device 50 to the non-contact IC card unit 10 via the external interface 40. Thus, it is possible to easily perform control such as writing data to the non-contact IC card unit 10 and reading data from the non-contact IC card unit 10.

  In particular, in the second embodiment, since the switch switching signal HSW is directly output from the terminal for mode switching signal newly provided in the external interface 40 so as to switch the switching switches 30, 31, 32. Compared to the case of the first embodiment, in the operation mode switching process, the mode switching process is performed without going through the process by the control processing unit 1, and the mode is switched to the non-contact communication unit connection mode more quickly. There is an effect that the IC card unit 10 can be controlled.

  That is, according to the second embodiment, although it is necessary to add a signal line for the switch switching signal HSW in the external interface 40, the switching between the external interface 40 and the control processing unit 1 is required when the operation mode is switched. There is no need to exchange signals, and switching control of the operation mode can be performed directly from the external interface 40, and it is possible to switch to the non-contact communication unit connection mode at high speed. In this case, switching control to the non-contact communication unit connection mode is simplified.

  In the second embodiment, when the external device 50 is connected to the external interface 40, the external interface 40 detects the connection state, outputs a switch switching signal HSW, and switches the change-over switches 30, 31, 32. It is also possible to switch to the non-contact communication unit connection mode.

  In the first and second embodiments described above, the mobile phone device has been described with the configuration in which the non-contact IC card unit 10 is built in. However, the present invention is not limited thereto, and even when the non-contact IC card unit 10 is configured to be detachable, The present invention is equally applicable. In this case, an interface for connecting a non-contact IC card may be provided between the non-contact IC card unit 10 and the changeover switches 30 and 31.

  Moreover, although the serial command and switch switching signal HSW from the external interface are used for switching between the non-contact communication unit connection mode / non-contact communication unit release mode, the operation mode can be switched using other signals. . For example, the switch switching signal PSW may be output from the input / output port 6 by a specific operation input such as a key input in the operation unit 22, or the display unit 21 when a specific operation input or the like occurs. A confirmation screen or the like as to whether or not to switch the operation mode may be displayed on the screen to allow the operator to select whether or not to switch the operation mode. That is, the connection to the non-contact IC card unit 10 may be switched by some trigger so that the external device 50 can directly access the non-contact IC card unit 10 by bypassing the communication processing unit 100.

  In the above embodiment, an example in which a non-contact IC card is mounted on a mobile phone device has been described. However, the non-contact communication unit is not limited to a card type, but a so-called electronic tag, IC tag, RF-ID, Of course, a tag-type non-contact IC called non-contact data communication called an RF tag is also included. In short, as long as it is configured by an IC or the like that performs non-contact data communication, all media including not only the card type and the tag type are included.

  In the above-described embodiment, the mobile phone device has been described as an example of the communication device. However, the present invention is not limited to this and can be applied to a personal digital assistant (PDA) having a communication function. That is, a communication having a communication processing unit capable of communicating with other communication devices, reading / writing data from / to a non-contact IC card unit, and transmitting / receiving data to / from an external device via an external interface Any device can be used as long as it is a device.

  The present invention has an effect that a non-contact communication unit such as a non-contact IC card unit incorporated in or attached to a communication device can be easily and quickly controlled by an external device such as a PC via an external interface. Information that enables communication with other communication devices, data communication with a built-in or mounted non-contact IC card unit, and connection of an external device such as a PC via an external interface This is useful for a communication device applied to a terminal device, a mobile phone device, or the like.

The figure which shows the structure of the mobile telephone apparatus which concerns on the 1st Embodiment of this invention. The figure which shows the structure of the mobile telephone apparatus which concerns on the 2nd Embodiment of this invention.

Explanation of symbols

1 Control processing unit (CPU)
2 ROM
3 RAM
4 Second communication unit (UART2)
5 Key / Display interface (KEY / LCD IF)
6 Input / output port (PIO)
7 First communication unit (UART1)
8 Internal bus 10 Non-contact IC card unit 20, 40 External interface 21 Display unit 22 Operation unit 30, 31, 32 Changeover switch 50 External device 100 Communication processing unit 110, 120, 130 Signal line

Claims (4)

A communication device that communicates with other communication devices,
A non-contact communication unit that performs data communication by non-contact communication, a communication processing unit that performs communication processing in a device including the non-contact communication unit, and an external interface that can connect an external device,
A communication apparatus comprising a non-contact communication unit connection mode for connecting the external interface and the non-contact communication unit by bypassing the communication processing unit. The communication device according to claim 1,
Comprising a switching means for switching a signal path between the external interface and the non-contact communication unit,
The switching means connects the external interface and the non-contact communication unit by bypassing the communication processing unit, and connects the external interface and the non-contact communication unit to the communication processing unit. The communication apparatus which switches the non-contact communication part cancellation | release mode connected via. The communication device according to claim 2,
The switching device is a communication device that switches to the non-contact communication unit connection mode by processing of the communication processing unit based on a serial command from the external interface. The communication device according to claim 2,
The switching unit is a communication device that switches to the non-contact communication unit connection mode in accordance with a switching signal from the external interface.

Images