JP2000222533A - Ic card processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize communication between an IC card processor and another device without providing a port for communication separately from an IC card attachment port. SOLUTION: At the time of communication with an IC card, a clock switching part 2 outputs the clock, which is generated by a clock generation part 3, to a clock terminal as the clock to be used for data transmission/ reception and selects it as the clock to be used for data transmission/reception in a data latch part 4. At the time of communication with another device which is so set that a clock to be used for data transmission/reception may be outputted, it is so set that the clock inputted from the clock terminal may be used for data transmission/reception in the data latch part 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an IC card processing device for reading and writing an IC card, and more particularly to communication between the IC card processing device and another device.

[0002]

2. Description of the Related Art In recent years, the fields of use of IC cards such as electronic money and credit cards have been expanding. Along with this, not as a peripheral device of a computer, but as a single unit
An IC card processing device capable of reading and writing an IC card is being put into practical use. For example, in the field of electronic money, an IC card reader that reads and displays the balance of electronic money stored in an IC card mounted on an IC card mounting port provided in an IC card processing device, or an IC card mounted on an IC card mounting port. Electronic money stored on the IC card
Payment terminals that move to another IC card mounted on another IC card mounting port are being put into practical use.

[0003] These IC card processing devices realize reading and writing of IC cards and other processes by executing programs stored in an internal memory by a microcomputer.

The processing to be performed by such an IC card processing device, that is, the program to be stored in the internal memory differs depending on the type of the IC card. Therefore, for example, existing IC card processing equipment
In order to be able to handle IC cards, it is necessary to update the program in the memory inside the IC card processing device.

Conventionally, such program updating has been performed by exchanging memories.

[0006] Alternatively, such a program update is performed by:
Communication between the other device and the IC card processing device via a communication port provided separately from the IC card mounting port on the IC card processing device, and the memory inside the IC card processing device is updated from the other device. It was realized by that. Also IC
Depending on the card processing device, if you want to read the data inside the IC card processing device to the outside or set the data from the outside to the inside of the IC card processing device, such reading and setting of the data can also be done by installing the IC card. This has been realized by performing communication between another device and the IC card processing device via a communication port provided separately from the port.

Here, unlike a PC card port for mounting a PC card conforming to PCMCIA, an IC card mounting port cannot be used for communication between an IC card processing device and another device. The reason that a separate communication port must be provided for communication between the card processing device and other devices is that the interface between the IC card and the IC card processing device uses both RS232C and other devices used for communication between computers. This is because, unlike a standard interface that is on an equal footing with respect to communication, it is defined as a specific interface that realizes communication between the two according to a signal supplied to the IC card by the IC card processing device.

[0008]

As described above, according to the technology of exchanging a memory in order to update a program in a memory in an IC card processing device, an IC for exchanging a memory is updated every time a program is updated. The disassembling and assembling work of the card processing device must be performed, which is complicated. On the other hand, according to the technology of updating the program in the memory inside the IC card processing device and reading and setting the data inside the IC card processing device by communication via a communication port provided separately from the IC card mounting port, In addition, it is necessary to provide a communication port separately from the IC card mounting port, which is an obstacle to miniaturization, weight reduction, and cost reduction of the IC card processing device.

On the other hand, if the information can be shared by the IC card processing apparatuses, the IC card processing apparatuses can be used in more various forms. For this reason, the IC card mounting for communication between the IC card processing apparatuses is required. Providing a communication port separate from the port is also an obstacle to reducing the size, weight, and cost of the IC card processing device.

Therefore, an object of the present invention is to enable communication between an IC card processing device and another device without providing a communication port separately from an IC card mounting port. Another object is to enable communication between IC card processing devices without providing a communication port separately from an IC card mounting port.

[0011]

In order to achieve the above object,
The present invention provides a data transmission / reception clock from a clock terminal to an IC card mounted on an IC card mounting port having at least a data terminal and a clock terminal,
An IC card processing device that communicates with an IC card, a clock generation unit that generates an internal clock, and a data transmission / reception unit that transmits / receives data synchronized with a data transmission / reception clock between an IC card mounting port, A first operation of outputting a clock generated by a clock generation unit to the clock terminal and the data transmission / reception unit as a data transmission / reception clock, and inputting from the clock terminal without outputting a data transmission / reception clock to the clock terminal And a clock switching means for selectively performing a second operation of outputting a clock to the data transmission / reception unit as a data transmission / reception clock.

According to such an IC card processing apparatus, communication with the IC card can be performed by causing the clock switching means to perform the first operation, and the clock switching means performs the second operation. By doing so, it is possible to communicate with another device that outputs a data transmission / reception clock and that is connected via a cable that can be attached to the IC card attachment port. Here, the IC card processing device according to the present invention, in which the conventional IC card processing device and the clock switching means perform the first operation, is a device that outputs a data transmission / reception clock.
Thereby, the IC card processing device according to the present invention
Communication with an IC card processing device or another IC card processing device according to the present invention can be performed.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of an IC card processing device according to the present invention will be described.

FIG. 1 shows the configuration of an IC card processing apparatus according to this embodiment.

As shown in the figure, an IC card processing device includes a microcomputer (hereinafter, referred to as a "microcomputer") 1,
Clock switching unit 2, clock generation unit 3, data latch unit 4, power supply switching unit 5, power supply 6, flash memory 7,
The system includes an IC card control terminal 8, an input device 12, a display device 13, and a mounting detection unit 14 that constitute an IC card mounting port. The microcomputer 1 has a built-in ROM 11.

The IC card control terminal 8 constituting the IC card mounting port has an arrangement of a power supply terminal, a data terminal, a clock terminal, and a reset terminal that match the IC card according to ISO7816.

The clock switching unit 2 selects a signal from the clock generation circuit 3 or a signal from the clock terminal of the IC card control terminal 8 as a signal used to generate a clock for data transmission / reception. Further, it switches on / off the supply of the clock of the IC card control terminal 8.

The data latch unit 4 is placed between the data bus of the microcomputer 1 and the data terminal of the IC card control terminal 8, and performs serial / parallel conversion of data transmitted to and received from the IC card. Further, the data latch unit 4 has a frequency dividing circuit, and divides a signal from the clock switching unit 2 to generate a clock for data transmission / reception.

The power supply switching unit 5 switches on / off the power supply to the power supply terminal of the IC card control terminal 8. In addition, as the power source used as the internal power source, the power source supplied from the power terminal or the power source supplied from the power source 6 is selected.

The microcomputer 1 executes a program stored in the flash memory 7 or the ROM 11.

The mounting detector 14 is connected to an IC card mounting port.
Detects that an IC card has been inserted.

FIG. 2 shows the configuration of the clock switching unit 2.

As shown in the figure, the clock switching unit 2
It comprises three-state buffers 21, 22, and 23 for switching the clock signal path, an inverter 24 for inverting the polarity, and an OR gate 25 for controlling the output.

In the figure, a clock input is a clock signal supplied from the clock generation unit 3, and a clock output is a clock signal output to the data latch unit 4. The clock terminal is a clock terminal included in the IC card control terminal 8.

In such a configuration, the three-state buffers 21, 22, and 23 are switched according to the level of the clock switching signal supplied from the microcomputer 1, and the clock signal output from the clock input is either One of the clock signals from the clock terminal is selected. The clock on / off signal supplied from the microcomputer 1 is connected to the output control terminal of the three-state buffer 22 via the OR gate 25, whereby the output to the clock output terminal can be turned off. The output to the clock output terminal is
It is also turned off when the clock signal from the clock terminal is selected as the clock signal to be output to the clock output by the clock switching signal.

Next, FIG. 3 shows the configuration of the data latch unit 4.

As shown in the figure, the data latch unit 4 includes a frequency dividing circuit 41 for dividing a clock to create a communication speed.
A parallel / serial conversion circuit 42 for converting the parallel data supplied from the microcomputer 1 via the data bus into serial data and outputting the data to the data terminal. The serial data from the data terminal is converted into parallel data 1 and the data is transferred to the data bus of the microcomputer 1. A serial / parallel conversion circuit 43 for output, a three-state buffer 44 for preventing collision of each bit of the bus data, an inverter 45 for inverting the polarity of the output data control signal, and an output for turning off the output to the data terminal. It comprises a three-state buffer 46. The parallel / serial conversion circuit 42 uses a writable flag indicating that the double buffer used for the parallel / serial conversion is in a writable state, and the serial / parallel conversion circuit 43 uses an internal signal used for the serial / parallel conversion. To the microcomputer 1 indicating that there is data in the buffer.

Here, the clock input in the figure is a clock signal supplied from the clock switching unit 2, and
Clock signal output from the middle clock output,
The data terminal is a data terminal included in the IC card control terminal 8.

In such a configuration, output of data from the microcomputer 1 to the data terminal 1 is performed as follows.

When the microcomputer 1 confirms that writing is possible from the writable flag, sets the direction switching signal to a value indicating transmission, outputs data to the data bus, and outputs a write signal, the serial / parallel conversion circuit 43 is suppressed from being output to the data bus, and
Data on the data bus is written to a buffer inside the serial conversion circuit 42. The data written in the buffer is converted into serial data and output to the data terminal in synchronization with the clock signal output from the frequency divider 41.

On the other hand, input of data from the data terminal to the microcomputer 1 is performed as follows.

When the microcomputer 1 sets the direction switching signal to a value indicating reception, the data input from the data terminal becomes
The data is written into a buffer in the serial / parallel conversion circuit 43 in synchronization with the clock signal output from the frequency dividing circuit 41. After that, the microcomputer 1 that has confirmed that there is data to be read from the read enable flag outputs a read signal, and thereby takes in the data converted and output from the serial / parallel conversion circuit 43 into the data bus.

As described above, the transmission and reception of data to and from the data terminal are performed in synchronization with the clock signal output from the frequency dividing circuit 41. The frequency division ratio switching signal supplied from the microcomputer 1 switches the frequency division ratio of the frequency division circuit 41.

Next, FIG. 4 shows the configuration of the power supply switching unit 5.

As shown in the figure, the power supply switching unit 5 includes backflow prevention diodes 51 and 52 and an IC card control terminal 8 when receiving power supply for each circuit in the apparatus from two systems.
A voltage stabilizing circuit 53 for supplying a stable voltage to the power supply terminal of the power supply terminal, an input power supply switch circuit 54 for internally connecting a signal from the power supply terminal, and an output power switch for turning on and off a voltage output to the power supply terminal It comprises a circuit 55.

In such a configuration, the output of the voltage stabilization circuit 53 to the power supply terminal can be turned on by turning on the output power switch circuit 55 in response to the output power on / off signal supplied from the microcomputer 1. . However,
In this case, when turning on the output of the voltage stabilizing circuit 53 to the power supply terminal, the input power switch circuit 54 is turned off by the input power on / off signal supplied from the microcomputer 1, and the output of the voltage stabilizing circuit 53 is output. Of the sneaking into the device.

On the other hand, when the input power switch circuit 54 is turned on by the input power on / off signal supplied from the microcomputer 1, the power input from the power terminal can be supplied to each circuit in the apparatus. At this time, since the current can be prevented from flowing to the power supply 6 by the diode 51, the power supply 6 is not adversely affected. Therefore, power can be forcibly supplied from the outside regardless of the presence or absence of the power supply 6.

Here, how and when such setting of the clock switching unit 2, the data latch unit 4, and the power supply switching unit 5 is performed will be described.

In the following, however, the present IC card processing device is an IC that performs start-stop synchronous communication in accordance with ISO7816.
Card (hereinafter referred to as "Type 1 IC card") and IS
It is assumed that the device is an IC card processing device having a terminal arrangement according to O7816 and capable of processing an IC card that performs clock synchronous communication (hereinafter, referred to as a “second type IC card”). Further, the present IC card processing device also performs communication between the IC card processing devices.

Here, the first-type IC card and the second-type IC card are both IC cards that operate by receiving power, a clock, and a reset signal from an IC card processing device. Transmits and receives data in synchronization with a clock obtained by dividing the clock supplied from the IC card processing device by 1/372, whereas the second type IC card synchronizes with the clock itself supplied from the IC card processing device. That the first type IC card sends and receives data when the reset signal is released.
The difference is that the second type IC card transmits predetermined response data when it is supplied with power and a clock, while it transmits nswer to Reset (hereinafter referred to as “ATR”) as data.

First, when processing the first type IC card, when processing the second type IC card, and when performing communication between the IC card processing devices, the clock switching unit 2 and the data latch unit 4 described above are used. The setting of the power supply switching unit 5 will be described.

When processing the first type IC card, the microcomputer 1 causes the clock switching unit 2 of FIG. 2 to select a clock signal from a clock input as a clock signal to be output to a clock output by a clock switching signal.
The output to the clock output terminal is turned on by the clock on / off signal. Further, regarding the data latch circuit of FIG. 3, the microcomputer 1 sets the frequency division ratio of the frequency division circuit 41 to 1/372 which is the start-stop synchronization rate according to ISO7816. Further, regarding the power supply circuit of FIG. 4, the microcomputer 1 turns on the output to the power supply terminal by the output power on / off signal, and turns off the input power switch circuit 54 by the input power on / off signal.

Next, when processing the second type IC card, the microcomputer 1 selects the clock signal from the clock input as the clock signal to be output to the clock output by the clock switching signal in the clock switching unit 2 of FIG. Then, the output to the clock output terminal is turned on by the clock on / off signal. Also, the microcomputer 1 is shown in FIG.
, The frequency division ratio switching signal sets the frequency division ratio of the frequency division circuit 41 to 1. Also, microcomputer 1
4 turns on the output to the power supply terminal in response to the output power on / off signal and turns off the input power switch circuit 54 in response to the input power on / off signal.

Next, when communication is performed between IC card processing apparatuses, the setting differs for each IC card processing apparatus.

Now, one IC card processing device will be described as a first IC card processing device, and the other IC card processing device will be described as a second IC card processing device.

In this case, the first IC card processing device and the second IC card
The card processing device is used by being connected with a cable 505 shown in FIG.

In the figure, 500 is the first IC card processing device, 5
Reference numeral 10 denotes a second IC card processing device.

Both ends of the cable 505 are shaped so that they can be mounted on an IC card mounting port, and have terminals arranged in the same manner as an IC card according to ISO7816. The connection detection unit 14 is configured to be connected to the control terminal 8 and recognizes that the IC card is mounted on the IC card mounting port even when the cable 505 is mounted on the IC card mounting port. .

Here, the first cable 505 causes the first
The power supply terminals, the clock terminals, the data terminals, and the clock terminals of the IC card control terminals 8 of the IC card processing device and the second IC card processing device are connected. It is not necessary to connect the reset terminal by the cable 505.

The setting of each unit in this case is as follows.

That is, regarding the clock switching unit 2 of FIG. 2, in the first IC card processing device, the microcomputer 1 causes the clock signal from the clock input to be selected as the clock signal to be output to the clock output by the clock switching signal, and turns on the clock. The output to the clock output terminal is turned on by the / off signal. On the other hand, in the second IC card processing device, the microcomputer 1 causes the clock signal from the clock terminal to be selected as the clock signal to be output to the clock output by the clock switching signal. At this time, the second IC
The output to the clock output terminal in the card processing device is turned off.

Regarding the data latch circuit of FIG. 3, the microcomputers 1 of the first IC card processing device and the second IC card processing device
The frequency division ratio switching signal sets the frequency division ratio of the frequency dividing circuit 41 to be the same in the first IC card processing device and the second IC card processing device.

Regarding the power supply circuit shown in FIG. 4, any of the following settings can be made.

The first setting is that the microcomputer 1 sets the output power ON / OFF for both the first IC card processing device and the second IC card processing device.
The output to the power supply terminal is turned off by the off signal,
The setting is such that the input power switch circuit 54 is turned off by the input power on / off signal, and the power input from the power terminal is not supplied to each circuit in the apparatus by the input power on / off signal. As a result, both the first IC card processing device and the second IC card processing device operate on the power from the power source 6 inside the own device. When only the first setting is used, the first setting is performed by the cable shown in FIG.
It is not necessary to connect the power supply terminals of the IC card processing device and the second IC card processing device.

In the second setting, the microcomputer 1 of the first IC card processing device turns on the output to the power supply terminal by the output power on / off signal, and turns off the input power switch circuit 54 by the input power on / off signal. Then, the microcomputer 1 of the second IC card processing device turns off the output to the power supply terminal by the output power supply on / off signal, and supplies the power input from the power supply terminal to each circuit in the device by the input power supply on / off signal. It is a setting to be performed. Thus, the first IC card processing device operates with the power supply of the power supply 6 inside the first IC card processing device, and the second IC card processing device operates with the power supply from the power supply 6 inside the first IC card processing device and the second IC card.
It operates on the power supply 6 inside the card processing device. When the second IC card processing device does not include the power supply 6, the operation is performed only by the power supply from the power supply 6 inside the first IC card processing device. Here, such a setting is
If the second IC card processing device has a low remaining power supply 6,
This is effective when the user wants to use the second IC card processing device with the power supply 6 removed.

The operation of the present IC card processing device will be described below.

FIG. 6 shows a microcomputer 1 of the IC card processing apparatus.
Shows the procedure of processing performed according to the program stored in the internal ROM 11.

As shown in this figure, in this processing, when the microcomputer 1 detects that the IC card or the cable is mounted on the IC card mounting port (step 601), the microcomputer 1 firstly sets the clock switching unit 2 and the data The settings of the latch unit 4 and the power supply switching unit 5 are set for processing the first type IC card (step 602), and a reset signal is output from the reset terminal of the IC card control terminal 8 (step 603).

If the ATR is received from the data terminal of the IC card control terminal 8 via the data latch unit 4 (step 604), it is determined that the first type IC card is mounted, and the ATR is determined. Is acquired (step 619), and the flow proceeds to step 616.

On the other hand, when the ATR cannot be received from the data terminal of the IC card control terminal 8 (step 60).
4) In response to the clock on / off signal and the output power on / off signal, the output of the clock to the clock output terminal and the output of the power to the power supply terminal are temporarily stopped (step 60).
5) Then, the settings of the clock switching unit 2, the data latch unit 4, and the power supply switching unit 5 are set to the settings for processing the second type IC card (step 606).

On the other hand, the data latch unit 4
If response data can be received from the data terminal of the IC card control terminal 8 via the interface (step 607), the second type IC
It is determined that the card is mounted, and the card information of the second type IC card is obtained (step 615), and step 6
Proceed to 16.

At step 616, based on the card information obtained at step 619 or 615, whether the attached IC card can be processed, that is, the application software for providing the service required by the attached IC card is flash memory. 7 is determined. If the application software is stored, the application software is started (step 616). Thereafter, in response to a request from the application software, communication with the first type IC card is performed, and reading / writing of the first type IC card is performed. (618), and when this is completed, the processing is terminated. On the other hand, if it is not stored, a message indicating that it cannot be handled is displayed on the display device 13 (step 620), and the process ends.

On the other hand, if the response data cannot be received in step 607, the clock on / off signal and the output power on / off signal are used to temporarily output the clock to the clock output terminal and turn off the power to the power supply terminal. The output is stopped (step 608), and a display requesting confirmation of the card is displayed on the display device 13 (step 609). And then
It is determined whether or not a predetermined password has been input from the input device 12 within a predetermined period (step 610). If not, the process is terminated.

On the other hand, if the password is input, it is determined that the cable is attached, the communication mode setting screen is displayed on the display device 13, and the setting of the communication mode is received from the input device 12 (step 611). ). Here, the communication mode for accepting the setting includes the clock switching unit 2,
This is the setting of the data latch unit 4 and the power supply switching unit 5,
Setting the communication mode of the IC card processing device and other ICs connected by the cable attached to this IC card processing device
Any one of the settings of the communication mode of the card processing device is
The first case of communication between the IC card processing devices described above
The input user sets the communication mode so that the setting is for the IC card processing device, and the other is the setting for the second IC card processing device when the other IC card processing devices communicate with each other. Regarding the power supply circuit, whether to use the first setting or the second setting described above is selected and set by the input user according to the status of the power supply 6 of the 2IC card processing device.

Next, the microcomputer 1 sets the clock switching unit 2, the data latch unit 4, and the power supply switching unit 5 in accordance with the set communication mode (step 612), and mounts them via the data latch unit 4. It communicates with other IC card processing devices connected by the connected cable and performs processing according to the communication contents, for example, updating of the program in the flash memory 7, updating of other data, and other ICs of other data. Transmission to the card processing device is performed (step 61).
3). Then, when this is completed, the processing ends.

As described above, the first type IC card and the second type IC card are automatically discriminated and processed, and the communication with the other IC card processing devices is performed by the first type IC card and the second type IC card. The first type of IC card and the second type of IC card that are routinely attached to the IC card processing device by performing the determination only when the card cannot be identified and the password that is implicitly requested is input. In addition to being able to process IC cards quickly,
It is possible to provide a certain level of security for changing the IC card processing device through communication with another IC card processing device and reading information inside the IC card processing process.

As above, one embodiment of the present invention has been described.

According to the IC card processing device according to the present embodiment, it is possible to communicate with another IC card processing device using the IC card mounting port. Furthermore, the IC card processing device according to the present embodiment performs communication with not only the other IC card processing device according to the present embodiment but also the conventional IC card processing device by appropriately setting the communication mode described above. be able to. For example, communication is performed between the host computer 700 and the IC card processing device 720 according to the present embodiment via a cable 705 and a conventional IC card processing device 710 operating as a peripheral device of the host computer 700 shown in FIG. It is also possible.

As described above, by enabling communication between the IC card processing devices, it is possible to eliminate the need for a dedicated device for updating the above-described program and setting and reading data, as well as a certain IC. The information held by the card processing device can be used by other IC card processing devices. For example, from the IC card mounting port of the payment terminal mounted on the vending machine, it is possible to collect the sales result of the vending, the number of remaining sales, and the like in another IC card processing device.

Further, the IC card processing device according to the present embodiment can be operated by a power supply supplied from outside. For this reason, when the present IC card processing device is operated only in a state where the IC card processing device is connected to another IC card processing device via a cable, it is always set to operate by an externally supplied power supply. It can be used in various usage modes, such as being able to be used without providing the power supply 6. Further, for example, when communication is performed between an IC card processing device using a commercial power supply as a power supply and an IC card processing device using a battery as a power supply, it is possible to reduce battery consumption of the IC card processing device using a battery as a power supply. .

In the above, the case where communication is performed between the IC card processing apparatuses has been described.
According to the card processing device, the IC other than the IC card processing device
It can communicate with various devices having the same signal interface as the card and devices having the same signal interface as the conventional IC card processing device. That is, the IC card processing device according to the present embodiment is not limited to any device as long as it is a device that performs serial communication at a data transfer rate that can be supported by the clock synchronous or start-stop synchronous type IC card processing device according to the present embodiment. Regardless of whether the device requires external power supply, communication can be performed by preparing an appropriate cable. Therefore, according to the IC card processing device according to the present embodiment, communication with various devices can be performed widely.

In the above description, an example is described in which an IC card that performs start-stop synchronous communication according to ISO 7816 and an IC card that has a terminal arrangement according to ISO 7816 and performs clock synchronous communication are used. According to the IC card processing device of the present embodiment, by appropriately setting the frequency division ratio of the frequency dividing circuit, other types of IC cards can be handled in the same manner. Further, in the above embodiment, when it is not determined that the IC card is mounted, it is determined that the cable is mounted.
This may be achieved by directly detecting that the cable is attached by giving a characteristic to the shape of the cable end and detecting the characteristic. Further, the configuration of the power supply and the clock switching of the present embodiment can be similarly applied to, for example, a case where a non-contact close contact type IC card (ISO10536) is handled.

[0073]

As described above, according to the present invention, a communication port is not provided separately from an IC card mounting port.
Communication between the IC card processing device and another device can be enabled. Further, communication between the IC card processing apparatuses can be performed without providing a communication port separately from the IC card mounting port.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of an IC card processing device according to an embodiment of the present invention.

FIG. 2 is a block diagram illustrating a configuration of a clock switching unit according to the embodiment of the present invention.

FIG. 3 is a block diagram illustrating a configuration of a data latch unit according to the embodiment of the present invention.

FIG. 4 is a block diagram illustrating a configuration of a power supply switching unit according to the embodiment of the present invention.

FIG. 5 is a view showing a cable according to the embodiment of the present invention.

FIG. 6 is a flowchart showing an operation of the IC card processing device according to the embodiment of the present invention.

FIG. 7 is a diagram showing a connection mode during communication between the IC card processing device according to the embodiment of the present invention and a conventional IC card processing device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... microcomputer, 2 ... clock switching part, 3 ... clock generation circuit, 4 ... data latch part, 5 ... power supply switching part, 6 ... power supply, 7
..Flash memory, 8 ... IC card control terminal, 1
1 ROM, 12 input device, 13 display device, 14 mounting detector

Continuing on the front page (72) Inventor Koichi Yoneda 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Prefecture Inside Hitachi Image Information System (72) Inventor Tetsuji Inami 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Hitachi, Ltd. Inside the image information system (72) Inventor Shigeyuki Ito 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Prefecture Inside Multimedia System Development Division, Hitachi, Ltd. (72) Inventor Jo Minoru 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Hitachi, Ltd. Multimedia System Development Division (72) Inventor Kenji Matsumoto 292, Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Prefecture Hitachi, Ltd. Multimedia System Development Division (72) Inventor Katsutoshi Sato Yokohama, Kanagawa Prefecture 292 Yoshida-cho, Totsuka-ku, Hitachi Image Information System Co., Ltd. Arm and Development Division in the F-term (reference) 5B058 CA22 KA13 KA21 KA40

Claims (8)

[Claims] 1. An IC card processing apparatus for communicating with an IC card by supplying a clock for data transmission / reception from a clock terminal to an IC card mounted on an IC card mounting port having at least a data terminal and a clock terminal. A data generation unit for transmitting and receiving data synchronized with a data transmission / reception clock between a clock generation unit for generating an internal clock, an IC card mounting port, and a clock terminal for transmitting the clock generated by the clock generation unit to the clock terminal. A first operation for outputting a data transmission / reception clock to a data transmission / reception unit, and outputting a clock input from the clock terminal to the data transmission / reception unit as a data transmission / reception clock without outputting the data transmission / reception clock to the clock terminal And a clock switching means for selectively performing the second operation of De processing apparatus. 2. It has at least a data terminal and a power supply terminal.
An IC that communicates with the IC card by supplying power from the power supply terminal to the IC card mounted on the IC card mounting port
A power supply generating unit for generating an internal power supply; and a power supply generated by the power supply unit is supplied from the power supply terminal and used as a power supply used inside the IC card processing device. Power supply switching means for selectively performing an operation and a fourth operation in which the power supplied from the power terminal is at least a part of the power used in the IC card processing device. IC card processing equipment. 3. The IC card processing device according to claim 1, wherein said data transmission / reception unit transmits / receives data using a data transmission / reception clock rate as a data transfer rate; An IC card processing device for selectively performing a sixth operation of transmitting and receiving data using a clock rate obtained by dividing the clock as a data transfer rate. 4. The IC card processing device according to claim 1, wherein the IC card mounting port has a reset terminal, and the IC card processing device executes the first operation by the clock switching unit. And outputting a reset signal from a reset terminal. When the data transmission / reception unit receives predetermined data, the clock switching means causes the clock switching unit to continue the first operation, and the data transmission / reception unit An IC card processing device having a control unit for causing the clock switching means to execute one of the first operation and the second operation in accordance with a predetermined condition when the data of the second type cannot be received. . 5. The IC card processing device according to claim 1, wherein the data switching unit receives the predetermined data by causing the clock switching unit to execute the first operation. The clock switching means continues the first operation, and when the data transmitting / receiving unit fails to receive predetermined data, the clock switching means causes the clock switching means to perform the first operation and the second operation in accordance with a predetermined condition. 2. An IC card processing device comprising a control unit for executing any one of the operations (2) and (3). 6. The IC card processing device according to claim 1, wherein the data transmission / reception unit transmits / receives data using a data transmission / reception clock rate as a data transfer rate, and performs a data transmission / reception clock. And selectively performing a sixth operation of transmitting and receiving data using the frequency of the divided clock as a data transfer rate, wherein the IC card mounting port has a reset terminal, and the IC card processing device includes a clock switching unit, The first operation is performed, and the data transmission / reception unit performs the sixth operation and outputs a reset signal from a reset terminal. When the data transmission / reception unit receives predetermined data, an IC card is mounted. It is determined that the first type of IC card is inserted in the port, the first operation is performed by the clock switching means, and the sixth operation is performed by the data transmission / reception unit. Causing the data transmitting / receiving unit to transmit / receive data to / from the first type of IC card, causing the clock switching unit to execute the first operation, and causing the data transmitting / receiving unit to execute the fifth operation. Accordingly, when the data transmission / reception unit receives predetermined data, the data transmission / reception unit determines that a second type of IC card is mounted on the IC card mounting port, and performs the first operation on the clock switching unit, and By causing the data transmitting / receiving unit to perform the fifth operation, the data transmitting / receiving unit performs data transmission / reception with the second type IC card, and the first type IC card or the second type When it is not determined that the IC card is mounted, the clock switching unit performs one of the first operation and the second operation and the data transmission / reception unit according to a predetermined condition. Serial fifth operation and the IC card processing apparatus characterized by comprising a control unit for executing any of the operation of the sixth. 7. An IC card processing device for communicating with an IC card, comprising: an IC card mounting port capable of mounting an IC card and a communication cable having a terminal arrangement similar to that of the IC card; A means for sending and receiving data to / from other devices connected to the IC card mounted on the IC card mounting port or the communication cable mounted on the IC card mounting port via the port, and the IC card mounted on the IC card mounting port And IC
When a communication cable is connected to the card mounting port,
Means for changing a signal interface of the IC card mounting port. 8. A method for performing communication between an IC card processing device that communicates with an IC card mounted on an IC card mounting port and another device, wherein a signal interface of the IC card mounting port can be changed.
Configured an IC card processing device, one end connected to other devices,
The other end of the cable whose other end can be attached to the IC card attachment port is attached to the IC card attachment port, and the IC card processing device
The signal interface of the IC card mounting port is changed to be compatible with the signal interface used by another device for communication, and communication is performed between the IC card processing device and the other device via the cable. how to.