JPS6386091A - Portable memory medium reader/write - Google Patents

Abstract

PURPOSE:To improve the convenience of a device by constituting so that a portable memory medium reader/writer can execute the processing with an application program supplied from the portable memory medium. CONSTITUTION:An IC card reader/writer 10 is connected with an IC card 21 and the data are transferred between an IC card 21 and a host computer 30. When the IC card 21 is connected to the IC card reader/write 10, the application program is supplied from the IC card 21 to the IC card reader/writer 10 and the IC card/reader writer 10 executes the processing by the application program.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a portable storage medium reading/writing device whose processing is controlled by an application program supplied from a portable storage medium such as an IC card. This relates to the loading device.

(Conventional technology) An integrated circuit chip with integrated circuit chips such as a microprocessor and memory embedded in a thin plastic card the size of a credit card.
C cards are convenient to carry, can store a variety of information, and have a relatively large storage capacity, so they are being used for a variety of purposes. This IC card is connected to a card reading/writing device (hereinafter referred to as a card reader/writer) to read stored data and to write data from the reader/writer side.

The above-mentioned reader/writer has conventionally been equipped with a display section made up of a liquid crystal, etc., and an input section made up of a keyboard, etc.
Furthermore, devices are known that are connected to a host computer so that data can be sent and received between the IC card, the reader/writer, and the host computer.

However, in the conventional card reader/writer described above, an application program is provided individually for each card reader/writer, and various processes are executed according to this application program. For this reason, it is necessary to prepare a number of card readers/writers equivalent to the number of IC cards with different specifications, and the card readers/writers lack versatility.

(Problems to be Solved by the Invention) As described above, in the conventional portable storage medium reading/writing device, processing was controlled by an application program provided on the device side, so There was a problem in that it was impossible to connect with other storage media and lacked versatility.

The present invention has been made based on the above-mentioned problems, and its purpose is to provide a portable storage medium reading/writing device that allows data to be sent and received between a reading/writing device and various portable storage media. The goal is to provide equipment.

[Structure of the Invention] (Means for Solving the Problems) In order to solve the above problems, the present invention interposes between an external processing device and a portable storage medium, and provides a link between the processing device and the storage medium. A reading/writing device for a portable storage medium that exchanges data between devices, the reading/writing device being controlled by an application program supplied from the portable storage medium. .

(Operation) In the present invention, when the portable storage medium and the reading/writing device are electrically connected, the application program stored in the portable storage medium is supplied to the reading/writing device, so that the reading/writing device can be read. - Processing of the writing device is controlled.

(Embodiments) Hereinafter, preferred embodiments of the present invention will be described based on the drawings.

FIG. 1 shows the configuration of an embodiment of the present invention, and this embodiment includes an IC card reader/writer 10 and
It includes an IC card 21 that is connected to the writer 1o to exchange data as will be described later, and a host computer 30 that exchanges data with the IC card 21.

The reader/writer 10 is a cp that serves as the control center of the entire device.
ui, a main memory 3 in which basic system programs are stored, a character generator 5 that develops display data from the IC card 21 into a bit image,
A display memory 7 temporarily stores character data from the character generator 5, a display driver 9 that drives the liquid crystal display section 11, and each digit consists of 5 x 7 dots, making it possible to display 20 digits and 4 lines of characters. Liquid crystal display section 1
1, and a reading/writing unit 1 that is connected to the IC card 21 and reads data in the card and writes data in the card.
3, a keyboard 15 for inputting various commands and data by an operator, and a communication system t2I 117 for controlling data transmission and reception with the host computer 30.

As shown in FIG. 2, the keyboard 15 of this embodiment includes numeric keys 15a, arrow keys 15b, and control keys 15c, and each of these keys is controlled by key control data from an IC card 21, which will be described later. .

Further, as shown in FIG. 3, the IC card 21 has a CPtJ 23 made of an integrated circuit chip and a memory 25 embedded in a thin plastic card of the size of a credit card, for example, and a connection with the reader/writer 10. Eight contacts 27a to 27h are formed to be exposed on the surface.

The IC card 21 is connected to the card reader/writer 10 via these external connection contacts 27a to 27h, and further connected to the host computer 30 via the card reader/writer 10.
It is connected to the Internet to exchange information.

Among the contacts 27a to 27h for external connection, contact 2yai
, tta is a contact that is supplied with operating power supply voltage from the reader/writer 10 connected to the CPU.
A power supply voltage is supplied to power supply voltage terminals VCC of 23 and memory 25. The contact 27b is a contact that receives a reset signal for the CPU 23 from the reader/writer 10,
This reset signal is supplied to the reset terminal R3T of the CPU 23 to reset the CPU 23. Contact 27
c is the reader/clock signal that operates the CPtJ23.
This is a contact point for receiving from the writer, and the received clock signal is supplied to the clock terminal CLK of the CPU 23. Note that the frequency-divided signal of this clock signal is used to determine the data transmission speed with the reader/writer 10. The contact 27e is a contact that forms a common ground for the power supply voltage and input/output signals between the IC card 21 and the reader/writer 10, and is connected to the ground terminal GN of the CPU 23 and the memory 25.
Connected to D. The contact 27g is a contact for transmitting input/output signals between the IC card 21 and the reader/writer 10, and is connected to the input/output terminal I10 of the CPU 23.

The CPU 23 includes an ALU section, a program memory section, a working RAM, a timer, a serial input/output section, an interrupt section, etc., and processes are executed according to programs stored in the program memory section.

Memo! The J-25 is composed of an EEROM, etc. connected to the CPU 23 via an address bus and a data bus BUS, and as described later, it stores display control data, key control data of the card reader/writer 10, and the entire system. It stores application programs, etc.

Figures 4, 5 and 6 respectively show card reader/
Command data from the writer 10 to the IC card 21, I
Response data from the C card 21 to the reader/writer 21 and the reader/writer 10 and host computer 30
It shows each format of command/response data between.

In Figure 4, SRT is the start code and LNG is A.
Byte length from pH code to CHKSIJM code,
CMD is a command code. Command code CMD
As the application code App, various processing codes such as designated reservation/ticketing for Japanese National Railways, reservation transactions for department stores, etc. can be specified.

The INS code is a support code and is used when increasing the number of application codes.

The REF code is used as a command counter, etc.

The additional information stores up to 64 bytes of information that can be transmitted at one time, and this additional information is defined in the format shown in FIG. 7 and subsequent figures. The checksum CHKSUM code is provided to detect data bit loss.

Furthermore, the 5TS1 code of the response data in FIG. 5 stores data for detecting processing abnormalities. 5TS2
The code is a code for identifying whether the content of the additional information is display data or non-display data.

The additional information shown in FIG. 7 further includes a code that specifies the overall data length, an iD code that indicates the content of the data, and display data (liquid crystal guidance data) to be displayed on the liquid crystal display section 11.
and key manual control/display data from the keyboard 15.

This key manual control 11/display data is on the keyboard 15
This is a control byte for controlling key manual input from the LCD display section 11, and is used to perform key control for each input item on one screen of the liquid crystal display section 11 and display key manual input data.

The format is as shown in Figure 8.
It consists of 4 bytes: key system (m<2 bytes), and number of display digits (1 byte).

The above 2-byte key control indicates whether or not the various keys on the keyboard 15 are used, and its format is shown in FIG.

The upper 4 bits of the first byte are reserved bits, and the lower 4 bits are reserved bits.
．． The bits are for control keys. This control key is a bit that specifies whether input operations of the control keys (correct, cancel, continue, execution keys 15a to 15C) of the keyboard 15 are enabled or disabled, and the bits corresponding to each key are shown in FIG. has been done.

In FIG. 10, when each bit is "1", the control key for that bit can be pressed.

The correction key is used to correct the item white display data of each input item. This correction key press condition functions only when one or more digits are input in the corresponding input item and the input digit number condition is not satisfied. That is, when the input digit number condition for the corresponding input item is satisfied, the process automatically moves to the next input item.

Figure 11 shows a condition where the number of input digits for the relevant item is 5 digits. At this time, the cursor for the second digit blinks, and the numeric keys from the 2nd to 4th digits are corrected manually. This is the condition range in which keys can be pressed. Further, this correction key functions when the user moves to the corresponding input item using the arrow keys after setting data in the corresponding input item.

Then, by pressing the correction key, the displayed data of the corresponding input item is cleared, and after the cursor in the first digit on the left of the corresponding input item blinks, the key of the input item becomes manually operated (see FIG. 12). Furthermore, the correction key for the final input item on one screen can be pressed when the input key is displayed in the input item with one or more digits and meets the input digit number condition.

Next, the continuation key shown in Fig. 10 will be explained.
This continuation key is a function that requests display of the next screen when all the input items on the displayed screen are set, when the screen display data consists of multiple screens. That is, if all the input items on the screen are not set, pressing this key has no effect. Note that if the displayed data is only one screen or the last screen of multiple screens, this continuation key is regarded as an execution key.

Pressing the execution key means completion of the screen display process.

However, this will be invalid if the settings for the input items have not been completed.

When the cancel key is pressed, the screen display process is terminated, and the IC card 21 is thereby ejected.

As shown in FIG. 9, the upper four bits of the second byte indicate an arrow key, and the format of this arrow key is as shown in FIG.

Each of the arrow keys is used only to move between input items on the screen, and cannot be used to move digits within an input item.

The lower 4 bits of the second byte shown in FIG. 9 are numeric keys, which are displayed in input items on the display screen and define the keys that can be entered for inputting data to be sent to the host computer. As shown in the figure.

The number of display digits shown in Figure 8 is displayed in the input field on the screen,
It also specifies the number of key digits that can be entered for inputting data to be transmitted to the host computer 30, and in this embodiment, a maximum of 20 digits can be specified.

The present embodiment has the above configuration, and its operation will be explained below according to the flowchart of FIG. 15.

When the IC card 21 is inserted into the read/write unit 11 of the card reader/writer 1o and electrically connected and the reset signal is released, an answer signal is sent back in response (step 101). Next, a password input process is executed (step 103), and a password request command is output from the reader/writer 10. In response to this, the IC
The password is sent back from the card, and it is determined whether the password is normal or not (step 105). If a normal password is not returned even after requesting the password a predetermined number of times, some kind of abnormality has occurred in the IC card 21, and the IC card is removed and the process ends (steps 107 and 109).

If the password is normal, input the screen display data and key control data from the IC card 21 (step 111). Then, after this screen display data passes through the character generator 5 and display memory 7, it is displayed on the liquid crystal display section. 11. At the same time, the keyboard 15 is controlled by the key control data, allowing key operations related to the screen display data.Therefore, the key operator can:
By looking at the display data displayed on the liquid crystal display section 11, it is possible to manually input a key to a predetermined item.

When the reception of display data is completed, non-display data is output from the IC card 21.

When all data input is completed, the key manual data by the operator and the non-display data are output from the communication control section 17 to the host computer 30.

In the host computer 30, the card reader/writer 10
It inputs key manual data and non-display data from , and outputs response information in response to this data. This response information is then output from the host computer 30 and received by the card reader/writer 10. Then, necessary data from the received response signal is written into the IC card 21 (step 125), the card is removed (step 127), and the process ends.

In this way, the display data of the liquid crystal display section, the keyboard 15
Since the key control data and the application program for the entire system are all supplied from the IC card 21 side, there is no need to provide a card reader/writer 10 for each type of IC card 21, and one card reader/writer 10 can be used. It can be applied to various IC cards 21.

Next, the operation of this embodiment will be explained in more detail.

Taking a train seat reservation system as an example, the IC card 21 stores display data related to seat reservations, key control data related to this display data, and an application program that controls the overall processing of the seat reservation system. . When this IC card 21 is inserted into the card reader/writer 10 and electrically connected, the processes of steps 101 to 109 in FIG. 15 are executed.

When it is determined that the IC power is correct, display data regarding the seat reservation is displayed on the liquid crystal display section 11 consisting of 20 digits and 4 lines.

FIGS. 16 and 17 show the format of display data displayed on this liquid crystal display section.

First, as shown in FIG. 16(A), the customer wishes to board the train by entering the month, day, train number, and boarding station.

, "Getting off station °", number of tickets, etc., key human resources are prompted. The key operator presses a key on the corresponding input item from the keyboard 15.

When the key input is completed and the execution key is pressed, the key input data is output to the host computer 30 via the communication control unit 17. The host computer 30 retrieves the seat reservation status. When a seat is reserved, this reservation information is sent to the reader/writer 10 as shown in FIG.
) and (B), the seat reservation data is displayed on the liquid crystal display and written into the IC card 21.

[Effects of the Invention] As explained above, according to the present invention, the portable storage medium reading/writing device is configured to execute processing by the application program supplied from the portable storage medium. There is no need to provide a reading/writing device for each different portable storage medium, and the convenience of the device is improved.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of an embodiment of the present invention, Fig. 2 is a block diagram of a keyboard, Fig. 3 is a block diagram of an IC card, and Fig. 4 is a diagram of command data from a card reader/writer to an IC card. Format diagram, Figure 5 is a format diagram of response data from the IC card to the card reader/writer.
Figure 6 is a format diagram of command/response data between the card reader/writer and the host computer.
Figure 7 is a format diagram of additional information, Figure 8 is a format diagram of key data/display data, Figure 9 is a format diagram of key control data, Figure 10 is a format diagram of control keys, 11 and 12 are explanatory diagrams of the functions of control keys, FIG. 13 is a format diagram of arrow keys, FIG. 14 is a format diagram of numeric keys, and FIG. 15 is a flowchart showing the processing procedure of an embodiment of the present invention. , Fig. 16, 1st
FIG. 7 is a configuration diagram showing a display example of the liquid crystal display section. 1... CPU 10... Portable storage medium reading/writing device 11...
Liquid crystal display section 15...Keyboard 21...IC card 30...Host computer

Claims (1)

[Claims] (1) A read/write device for a portable storage medium that is interposed between an external processing device and a portable storage medium and exchanges data between the processing device and the storage medium; - A portable storage medium reading/writing device, characterized in that the writing device is controlled by an application program supplied from the portable storage medium.