JP2003308492A - Terminal device and storage medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a terminal device and a storage medium capable of inexpensively and easily acquiring the specific information for a plurality of applications stored in the storage medium. <P>SOLUTION: An IC card terminal device 1 as the terminal device comprises a command control data processing part for reading and storing the command control data including the communication command corresponding to the application to be accessed, and a control part for accessing the application by using the communication command stored in the command control data processing part. The IC card 5 comprises a command control data managing application for storing the command control data included in the communication command corresponding to each application with respect to all of the applications in the IC card, and transferring the command control data corresponding to the accessed application, to the IC card terminal device 1 side in accordance with the demand from the IC card terminal device 1 side. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording medium such as an IC card in which a plurality of application programs are stored and a terminal device such as an IC card terminal device for accessing the recording medium.

[0002]

2. Description of the Related Art In a conventional IC card terminal device, a communication command for an IC card is held in the IC card terminal device, the communication command is transmitted from the IC card terminal device to an application in the IC card, and its response is sent. As a result, the information obtained from the IC card is used to perform processing such as displaying on the IC card terminal device.

In the case of an IC card corresponding to a plurality of applications, the IC card terminal device has a communication command for each application, and the communication command corresponding to the selected application is transmitted for processing.

The IC card corresponding to a plurality of applications has a large capacity operating system and software for selecting and operating the applications. For example, a system described in JP-A-11-31199 is proposed.

[0005]

However, an IC card terminal device corresponding to an IC card in which a plurality of applications operate does not always have an operating system or software of the same capacity as the IC card. For example, by inserting an IC card into the main body of the apparatus and displaying information obtained from the IC card on a liquid crystal screen attached to the main body, a portable I
Since the C card terminal device is required to have portability, it has a small program memory and it is difficult to incorporate various communication command transmission processes for a plurality of applications.

Generally, the program of the IC card is rewritable, and the content of the communication command exchanged with the IC card terminal device may be changed by rewriting the program, but in the viewer, However, since it is required to be inexpensive, a memory that cannot be rewritten is often used, and it is difficult to change a program for transmitting a communication command to an IC card.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a terminal device and a storage device which can easily and inexpensively obtain specific information for a plurality of applications stored in a storage medium. To provide the medium.

[0008]

In order to solve the above-mentioned problems, the terminal device of the present invention is connected to a storage medium storing a plurality of applications, and corresponds to each application for each application in the storage medium. And a command control data processing unit for reading and storing command control data including a communication command corresponding to an application to be accessed from the storage medium in the terminal device for accessing using the communication command. And a control unit for accessing the application by using the communication command stored in.

According to the above configuration, the communication command corresponding to each application is read for the first time when the application (A) is called.

By the time when the processing using the application (A) is completed and another application (B) is called, the communication command read previously is discarded and the communication command for the new application (B) is the same. Read to storage location.

Therefore, it is not necessary to store all the communication commands corresponding to each of the plurality of applications in the terminal device in advance. Therefore, the required memory capacity does not increase. As a result, (a) the size of the terminal device is not increased. Therefore, portability is improved. (B) The cost can be suppressed.

[0012] Therefore, the cost can be reduced without using a ROM instead of a RAM to reduce the cost. R
Since it is AM, even if the communication command is changed, it can be dealt with.

In addition to the above configuration, the terminal device of the present invention further comprises an input section for receiving an input operation from a user for the purpose of accessing each application, and the command control data is obtained by the input section. A transmission procedure that defines correspondence between an input operation and a communication command transmission process is included, and the control unit stores the communication command based on the transmission procedure in response to an input operation from the user to the input unit. It is characterized by transmitting to the medium.

According to the above configuration, even if the mechanism, rule, or the like regarding the transmission process for the input operation is changed in each application, it can be dealt with only by updating the command control data. Therefore, in addition to the effect of the above configuration, it is not necessary to change the inside of the terminal device.

In addition to the above configuration, the terminal device of the present invention includes a display unit for displaying display data read as a result of accessing each application, and the command control data causes the display operation by the display unit. It is characterized in that it includes a prescribed display procedure, and the display section displays the display data based on the display procedure.

According to the above-mentioned configuration, even if the mechanism or rule regarding the display of the display data is changed in each application, it can be dealt with only by updating the command control data. Therefore, in addition to the effect of the above configuration, it is not necessary to change the inside of the terminal device.

Further, in addition to the above configuration, the terminal device of the present invention comprises an error processing unit for performing processing when there is an error in the response from each application as a result of accessing each application, and the command control data described above is provided. But,
It is characterized by including an error processing procedure that defines processing to be performed when the error occurs, and the error processing unit performs error processing based on the error processing procedure when the error occurs. There is.

According to the above-mentioned configuration, even if the mechanism of processing or the rule of transmission processing is changed in each application when there is an error in the response obtained from each application as a result of accessing each application, the command is changed. It can be handled simply by updating the control data.
Therefore, in addition to the effect of the above configuration, it is not necessary to change the inside of the terminal device.

The storage medium of the present invention stores a plurality of applications, and for each application,
In a storage medium accessed from a terminal device using a communication command corresponding to each application, command control data including a communication command corresponding to each application is stored for all applications in the storage medium, and the access target Is provided with a command control data management application for passing command control data corresponding to the application to the terminal device side in response to a request from the terminal device side.

According to the above configuration, the communication command corresponding to each application is read for the first time when the application (A) is called.

By the time the processing using the application (A) is completed and another application (B) is called, the communication command read previously is discarded and the communication command for the new application (B) is the same. Read to storage location.

Therefore, it is not necessary to store all the communication commands corresponding to each of the plurality of applications in the terminal device in advance. Therefore, the required memory capacity does not increase. As a result, (a) the size of the terminal device is not increased. Therefore, portability is improved. (B) The cost can be suppressed.

Therefore, the cost can be reduced without using the ROM instead of the RAM in order to reduce the cost. R
Since it is AM, even if the communication command is changed, it can be dealt with.

In addition to the above configuration, the storage medium of the present invention presents the communication command to be updated by the command control data management application in response to a request from the communication command updating device that updates the communication command. The communication command updating device updates the communication command to be updated.

With the above configuration, the communication command updating device updates the communication command to be updated. Therefore, in addition to the effect of the above configuration, the communication command can be easily updated.

The present invention provides a first application program and a second application program which provides a function of returning command control data including a communication command for requesting display data to the first application program. An IC card for acquiring command control data in an IC card that includes a system program that provides functions necessary for those application programs to execute processing, and a means for transmitting and receiving information to and from the IC card terminal device. In response to the first communication command from the card terminal device, the transmitting / receiving unit receives the first communication command, and the second application program operates in response to the first communication command to generate a response including command control data. Then, the generated response is I A second communication command is sent from the IC card terminal device to the first application program based on the command control data obtained by such means, and the second communication command is sent and received by the sending and receiving means. In response to the second communication command, the first application program may operate to generate a response including display data, and the transmitting / receiving means may transmit the generated response to the IC card terminal device. it can.

Further, according to the present invention, in the IC card having the above structure, the command control data is stored in the second application program by transmitting a communication command from the second IC card terminal device. You can also do it.

Further, the present invention provides a transmitting / receiving means for transmitting / receiving information between a plurality of application programs and an IC card having a system program that provides a function necessary for each application program to execute processing. An input unit, a display unit, an input unit for controlling the input unit, a display unit for controlling the display unit, and an IC
An IC card terminal device comprising: a command control data processing unit for generating and extracting a communication command with a card; a control unit for controlling the input unit, the display unit and the command control data processing unit; The control unit
A first communication command for requesting command control data is sent to the C card, and a second communication command is taken out from the command control data acquired by the response from the IC card through the command control data processing unit and taken out. Alternatively, the second communication command may be transmitted to the IC card, and the response received from the IC card may be displayed on the display unit through the display unit.

Further, according to the present invention, in the IC card terminal device having the above structure, the command control data describes a procedure relating to a display process by the display section,
It can be configured to display on the display means based on the procedure.

Further, according to the present invention, in the IC card terminal device having the above configuration, the command control data describes a procedure relating to a transmission process of the second communication command in response to an input operation by the input means. A second communication command transmission process may be performed based on the above procedure in response to the input operation of the input unit.

Further, according to the present invention, in the IC card terminal device having the above structure, the command control data describes a procedure relating to control when the response to the transmission of the second communication command is an error, When the response received from the IC card in response to the transmission of the second communication command is an error, the control based on the procedure may be performed.

[0032]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIGS. 1 to 15.

First, the outline of the present embodiment will be described. In the present embodiment, a command control data storage type having a plurality of communication commands, display format information, control procedures for input and control procedures for errors. And
A command for selecting an application in the IC card, a command for storing command control data in the application, a command for obtaining command control data from the application, and a response to these communication commands are defined.

In the IC card, means for storing command control data in the application based on the command for storing the command control data and means for transmitting command control data as a response based on the command for acquiring the command control data are provided. Set up. More specifically, a command control data management application is provided as a means for storing and transmitting the command. The command control data management application is computer software.

In the IC card terminal device, means for retrieving the communication command, display format information, control procedure for input, and control procedure for error from the obtained command control data, and means for transmitting the retrieved communication command to the application. , A means for generating display data using the response from the application to the communication command and the extracted display format information, a means for determining an action corresponding to the user's input operation using the control procedure for the extracted input, and Means for determining an action corresponding to an input operation by the user using a control procedure for an error. All these means are computer software and a CPU that executes it.
(Central processing unit).

When it is desired to store the command control data in the IC card, the IC card terminal device transmits the command control data storage command subsequent to the application selection command. Then, in the IC card, the command control data management application selected by the selection command stores the command control data in the predetermined format.

When a command is transmitted to a desired application in the IC card and a response is desired from the application, the IC card terminal device transmits a command control data acquisition command subsequent to the application selection command. Then, on the IC card side,
The command control data management application selected by the selection command transmits the command control data in the format defined as the response to the IC card terminal device.
Further, the IC card terminal device, following the application selection command, transmits the communication command included in the command control data obtained in the response to the acquisition command. Then, on the IC card side, the application selected by the selection command transmits, as a response, for example, a response storing display data to the IC card terminal device.

The IC card terminal device displays the display data obtained from the response from the application on the screen, and performs the processing based on the data included in the command control data for the button operation.

Next, a more specific example will be described.
1 and 2 are external views showing an embodiment of an IC card terminal device according to the present embodiment, in which 1 is an IC card terminal device (terminal device), 2 is a display device, 3 is a card connector, and 4a. And 4b and 4c are operation buttons (collectively referred to as operation buttons 4), and 5 is an IC card (storage medium) according to the present invention.
Is. In FIG. 1, the IC card terminal device 1 has a display device 2, operation buttons 4 and a card connector 3, and an IC card 5 is connected via the card connector 3. The display device 2 can display text, and
The display data of the application acquired from the C card 5 is displayed. As the operation button 4, an operation button 4a for executing the function of the application to display the next data of the data currently being displayed and an operation button 4b for displaying the previous data are provided.

FIG. 1 shows a state in which a desired application is selected from a plurality of applications, and FIG. 2 shows a state after a balance application for displaying a deposit balance is selected as a desired application from the plurality of applications. Is shown.

Here, the application will be simply referred to as an application or an AP.

FIG. 3 shows the IC card terminal device 1 shown in FIG.
3 is a block diagram showing the circuit configuration of FIG. 6 is a display unit, 7 is an input unit, 8 is a command control data processing unit, and 9 is a display unit 6.
And the input unit 7 and the command control data processing unit 8 to control I
It is a control unit (control unit, error processing unit) that transmits and receives commands to and from the C card. The display unit 6 and the input unit 7 can be realized by computer software, the command control data processing unit 8 by a storage device such as RAM (random access memory), and the control unit 9 by a CPU (central processing unit). The display unit 6 displays the application data on the display device 2 (FIG. 1) based on the instruction from the control unit 9. The input unit 7 determines the type of the operation button 4 (FIG. 1) operated by the user based on the request from the control unit 9,
The determination result is passed to the control unit 9. The command control data processing unit 8 stores the command control data obtained from the IC card 5 based on the request of the control unit 9, and displays the communication command, the control procedure and the display from the stored command control data based on another request. The format data is taken out and returned to the control unit 9. The control unit 9 sends an issuance command to the IC card 5 (FIG. 1) connected via the card connector 3 (FIG. 1) and sends an issuance command from the IC card 5 based on the protocol defined by the ISO standard. Control reception.

More specifically, the control procedure is, more specifically, a transmission procedure that defines the correspondence between the input operation by the input unit and the communication command transmission process, a display procedure that defines the display operation by the display unit, and an error occurrence. There are error handling procedures that specify the processing to be performed.

FIG. 4 is a block diagram showing an embodiment of the IC card 5 in FIG. 1. 10 is an OS (operating system), 11 is a command control data management AP as an application for command control data management,
12 is a data management unit, 13 is a communication command processing unit, and AP
1 to APn are applications. As described above, in this embodiment, the IC card 5 stores therein a plurality of applications.

The command control data management AP 11 is composed of a data management unit 12 and a communication command processing unit 13. The data management unit 12 stores and manages command control data, which will be described later, for each application, and the communication command processing unit 13 exchanges commands / responses defined by the ISO standard with the IC card terminal device, and the IC card. Data is extracted from the communication command received from the terminal device, and response data is generated and returned.

Each application comprises a unique processing section 14 and a communication command processing section 15. The unique processing unit 14 realizes a unique function provided by the application APi to which it belongs (where i = 1, 2, ..., N), and the communication command processing unit 15 is similar to the communication command processing unit 13. Perform processing.

As the plurality of applications, in addition to the applications showing the balances mentioned here, for example,
There are applications such as bus cards (the fare is deducted from the charged amount), shopping mall point cards (points are added when purchasing products).

FIG. 5 is a diagram showing the structure of commands and responses between the IC card 5 and the IC card terminal device 1. Although this format complies with the ISO standard, the command and the corresponding response are uniquely determined based on the present invention. The following commands are unique to the present invention. Application selection command: This is a command for specifying an execution application from the IC card terminal device to the IC card 5. Command control data storage command: This is a command for storing command control data in the IC card 5. Command control data acquisition command: This is a command for acquiring command control data from the IC card 5 to the IC card terminal device 1.

Next, the structure of each of the above commands and the response to them will be described.

Reference numeral 410 shows a structure used for a command for application selection, which is CLA,
It is composed of information of INS, P1, P2, Lc, DATA, and Le. The CLA represents a command class that distinguishes whether this command 410 is a command defined by the ISO standard or a command other than the ISO standard.
As the commands other than the commands defined by the O standard, the above-mentioned specific commands defined by this embodiment are used. In the INS, a value indicating the command 410 is described. Further, the details of the function of the command 410 are defined in P1 and P2, but here, meaningful information is not included and, for example, 0 is set. Lc
Indicates the length of DATA that follows. DATA has
The value that identifies the application to be selected is described. Le is an identifier representing the end of this command 410.

Reference numeral 420 represents the structure of the response to the command 410, DATA, SW1, SW.
It consists of two pieces of information. The command control data of the designated number is stored in DATA. SW1 / SW2 represents the status of the response 410. This is command 4
The processing result of the IC card 5 for 10 is reflected,
Values and meanings of SW1 / SW2 are defined for each command.

Reference numeral 430 indicates a structure used for a command for storing command control data, and CL
It is composed of information of A, INS, P1, P2, Lc, DATA, and Le. CLA, INS, P1, P2, Lc, Le
Respectively have the same contents as the command 410. DA
In TA, a value that specifies the order of the command control data to be stored, the length of the subsequent command control data, and the command control data to be stored are described.

Reference numeral 440 shows the structure of the response to the command 430, and is composed of information on SW1 and SW2. SW1 and SW2 have the same information as the response 420.

Reference numeral 450 indicates a structure used for a command for acquiring command control data, and CL
It is composed of information of A, INS, P1, P2, Lc, DATA, and Le. CLA, INS, P1, P2, Lc, Le
Respectively have the same contents as the command 410. DA
The TA describes a value that identifies which command control data is to be acquired.

Reference numeral 460 indicates the structure of the response to the command 450, DATA, SW1, SW.
It consists of two pieces of information. The command control data of the designated number is stored in DATA. SW1 / SW2 includes the same information as the response 420.

Reference numeral 470 indicates a structure used for a command for acquiring an application name, and CL
It is composed of information of A, INS, P1, P2, Lc, DATA, and Le. CLA, INS, P1, P2, Lc, Le
Respectively have the same contents as the command 410. DA
In the TA, a value that identifies which number of the application name to acquire is described.

Reference numeral 480 represents the structure of the response to the command 470, DATA, SW1, SW.
It consists of two pieces of information. The data of the name of the application of the designated number is stored in DATA. SW1 /
SW2 includes the same information as the response 420.

The command and response having the structure shown in FIG. 5 are I-based based on the transmission protocol defined by the ISO standard.
It is exchanged between the C card 5 and the IC card terminal device 1. Control of the transmission protocol in the IC card 5 is O
The control unit 9 (FIG. 3) controls the transmission protocol in the IC card terminal device 1 in S10 (FIG. 4). Since such protocol control is already implemented between the conventional IC card and the IC card terminal device, its explanation is omitted here.

6 to 10 show the structure of command control data. The command control data is shown in Fig. 4.
Between the IC card terminal device and the IC card as parameters of the command control data storage command 430 of FIG. 5 and the command control data acquisition command 450 of FIG. Exchanged with.

As shown in FIG. 6, the command control data is the application APi (i = 1,
2, ..., N), and an index that summarizes the storage locations of the data for each application. FIG. 7 shows the structure of this index. The index holds, for example, the memory address where the data is stored and the relative number of bytes from the start address. By looking at the contents of the index, the storage position of the command control data for the specified application can be traced. You can

FIG. 8 shows the structure of command control data for one application. The name character string of this application and m for this application are shown.
It consists of individual command control data and an index that summarizes the storage location of each data. FIG. 9 shows the structure of this index. By looking at the contents of the index, the storage position of the command control data of the designated number can be traced.

FIG. 10 shows the structure of one command control data, which includes a communication command, a display format, a command control data number for the ▼ button, a command control data number for the ▲ button, and a command control data number for the error. Although not shown, there are command control data numbers for other buttons as well, eg, the button. The communication command is a character string of the communication command itself to be transmitted to the application.
A command for returning the data displayed on the screen of the C card terminal device 1 as a response is stored. For example, set a communication command that returns the numerical value of the deposit balance. The display format stores data such that a unit character is added or right-justified when the response of the communication command is displayed on the screen. The command control data number for the ▼ button is information about which command control data is to be executed next when the input button is the ▼ button while waiting for input after the screen is displayed. It is a value that means the number of. Similarly, the command control data numbers for the ▲ and ● buttons are information about which command control data is to be executed next when the input buttons are the ▲ and ● buttons, respectively. The command control data number for an error is information about which command control data is to be executed next when a communication command is transmitted and an error is returned. When there are a plurality of errors, it is possible to have a plurality of pairs of error numbers and corresponding command numbers, and to divide the command control data to be executed for each error.

The ▲ / ▼ buttons are buttons for issuing an instruction to display the names of other applications during the process of selecting an application. For example,
Pressing the ▲ button gives an instruction indicating the name of the previous application, and pressing the ▼ button gives an instruction indicating the name of the next application.

On the other hand, when one application is being used, the ▲ / ▼ buttons are buttons for instructing the processing unique to the individual application. For example, in the present embodiment, the past several transaction histories of deposit / payment are stored in the IC card 5, and when ▼ or ▲ is pressed, the balance for each transaction is sequentially displayed. ▼ and ▲ are the differences between forward / reverse feed. In this way, if the application shows the balance, press the ▲ button to
When the ▼ button is pressed, the instruction indicates the previous balance, and the instruction indicates the balance after one.

The button serves as a button for deciding a selected application when the application is selected with the ▲ / ▼ buttons, and when one application is being used, the "process for selecting another application" is selected. The button becomes a button for instructing the IC card terminal device 1 to "go to."

Next, the command control data is transferred to the IC card 5
The processing to be stored in will be described. This processing is performed by using an IC card terminal device such as an IC card reader / writer.
This is performed by transmitting a communication command having the structure defined in the present invention to the C card. As the IC card terminal device, a commercially available device can be used, and therefore, the description of the configuration diagram of the device will be omitted, and the processing performed by the IC card terminal device will be described with reference to FIG. 11. .

An application selection command 410 having the structure shown in FIG. 5 is issued to the IC card 5 to bring the command control data management AP 11 into the selected state (step 501).
Command control data storage command 43 having the structure shown in FIG.
0 is generated (step 504) and issued to the IC card 5 (step 505). Application selection command 410 and command control data storage command 41
If the response to 0 is an error (steps 502, 503, 506, 507), processing such as displaying an error message is performed based on the error processing procedure described above (step 508).

Next, processing of the IC card terminal device 1 and the IC card 5 will be described. When the IC card 5 is inserted into the IC card terminal device 1, the I
A reset signal is sent to the C card 5, and in response to this,
From the IC card 5 to the IC card terminal device 1, the ATR (An
swer to Reset) signal is sent. This A
The TR signal includes information such as the designation of the subsequent communication protocol and the transmission rate. 1 and 2 and FIG.
The IC card terminal device 1 shown in FIG. 13 performs the processing shown in FIG. 13 and the processing shown in FIG. 12, and the IC card 5 shown in FIG. 4 performs the processing shown in FIGS.

Here, (a) the IC card terminal device 1
When the C card 5 is inserted, the user can
It is also possible to manually select which of the plurality of applications in the card 5 is to be started first. Alternatively, (b) when the IC card 5 is inserted into the IC card terminal device 1, a predetermined application can be set to be automatically activated.

An outline of the above two methods will be described below.

In the case of the above (a), when the IC card 5 is inserted, the IC card terminal device 1 tentatively selects one application which is an option in step 601 of FIG. 12 described later (that is, the IC card). The name of the application is displayed on the display device 2 of the terminal device 1), and the actual application selection process starts. Use the ▼ and ▲ buttons to see another application. Then, when the button is pressed to select the application, the process proceeds to step 701 in FIG. 13 and the processing for starting the application is performed. After that, when it is desired to select another application in the same IC card 5, when the ● button is pressed, the process proceeds to step 602 in FIG. 12, and the application selection process is performed as described above.

In the case of (b), the OS 10 in the IC card 5 manages the initial activation application, and the application is automatically activated when the IC card 5 is inserted. That is, when the IC card 5 is inserted, step 701 in FIG.
Then, the preset application that should be started first is started. After that, if you want to select another application in the same IC card 5,
If the button is pressed, the process moves to step 602 in FIG. 12 and application selection processing is performed. Then, when the user presses the button to select the application, step 7 in FIG.
Then, the process proceeds to 01 to perform a process for starting the application. In this case, step 601 of FIG. 12 is not executed.

Next, details of each of the above processes will be described.

In both cases (a) and (b), the communication read previously is completed by the time the processing using the first application (A) ends and another application (B) is called. The command is discarded, and the communication command for the new application (B) is read into the same storage location. As a result, it is not necessary to increase the memory of the IC card terminal device 1.

Application selection processing in the IC card terminal device 1 will be described with reference to FIG.

First, the control unit 9 sets an initial value 1 to the "selected application number" which is a variable managed by itself (step 601).

In steps 602 to 607, I
A process of acquiring application name data from the command control data management AP 11 of the C card 5 is performed. An application selection command 410 having the structure shown in FIG. 5 is issued to the IC card 5 to issue a command control data management AP1.
1 is selected (step 602), and the application name acquisition command 470 having the structure shown in FIG.
It is issued to the C card 5 and the name character string data of the application with the application number 1 is acquired in the response 480 (steps 605 and 606).

When the response to the application selection command 610 or the application name acquisition command 470 is an error, an error message is displayed on the display device 2 by the display unit 6 based on the error processing procedure described above, and the IC card terminal device is displayed. 1 is turned off (steps 604, 607, 614, 615).

In step 608, based on the above-mentioned display procedure, the acquired application name character string of application number 1 is displayed on the display device 2 of the IC card terminal device 1.

In step 609, the input of the operation button is waited for, and the transition corresponding to each of the input operation buttons is performed. The input unit 7 waits for the operation button 4 to be input, and each process is performed according to the type of the input operation button based on the above-described transmission procedure (step 6).
10, 612).

When the input is the operation button 4a, the selected application number is added (step 610), and when the addition result exceeds the maximum application number, it is set to 1 (step 611) and step 602. Return to.

When the input is the operation button 4b, the selected application number is subtracted (step 612), and when the subtraction result is 0, it is set to the maximum application number (step 613), and step 602. Return to.

If the input is the operation button 4c, the selection of the application is confirmed, and the process proceeds to FIG.

Application starting processing in the IC card terminal device 1 will be described with reference to FIG.

First, the control section 9 sets an initial value = 1 to the "execution command number" which is a variable managed by itself (step 701).

The command being executed is the number of the command being executed among the numbers given to the commands. "The command number being executed is 1", that is, "the command with the command number 1 is executed" means "to start the selected application". Here, the selection may be performed by the user, or a predetermined application (for example, AP1) may be automatically selected when the IC card 5 is inserted into the IC card terminal device 1.

In steps 702 to 708, I
A process of acquiring command control data from the command control data management AP 11 of the C card 5 is performed. An application selection command 410 having the structure shown in FIG. 5 is issued to the IC card 5 to put the command control data management AP 11 in the selected state (step 702), and then a command control data acquisition command 450 having the structure shown in FIG. 5 is issued. , Command control data is acquired in the response 460 (steps 705 and 706).

When the response to the application selection command 410 or the command control data acquisition command 450 is an error, an error message is displayed on the display device 2 by the display unit 6 based on the error processing procedure described above, and the IC card is displayed. Power off the terminal device 1 (steps 703, 704, 706, 707, 712,
713).

The command control data obtained in step 706 is saved in the command control data processing unit 8 for use in the subsequent processing (step 708).

In steps 709 to 716, the communication command included in the acquired command control data is
Application APi of IC card 5 (i = 1, 2,
......, n) is issued. The application selection command 410 having the structure shown in FIG. 5 is issued to the IC card 5 to bring the application APi into the selected state (step 709), and the command control data processing unit 8 saves the command control data saved in step 708. Command data is extracted from the inside (step 71
4) Issue to application APi (step 715). As the response of the issued command,
Data to be displayed on the screen of the IC card terminal device 1 is obtained (step 716). When the response to the application selection command transmission (step 709) is an error, an error message is displayed on the display device 2 by the display unit 6 and the IC card terminal device 1 is turned off based on the error processing procedure described above. (Step 71
0, 711, 712, 713).

In steps 718 to 720, display data is created based on the response of the communication command,
Perform the process to display on the screen. The command control data processing unit 8 extracts the display format from the command control data saved in step 708 (step 71
8) Generate a character string according to the format (step 7)
19). For example, when the condition for adding unit characters is described as the format, the character string "Yen" is added to the right end of the character string obtained in the response in step 716, and the character for display generated in this way is displayed. Display column 6
Then, display is performed on the display device 2 based on the display procedure described above (step 720).

Steps 721 to 727 are the processing of waiting for the input of the operation button and making the transition corresponding to each of the input operation buttons. Wait for the operation button 4 to be input by the input unit 7 (step 721,
722), each processing is performed according to the type of the input operation button based on the above-mentioned transmission procedure (step 723). If the input is the operation button 4a, the command number for the ▼ button is extracted from the command control data saved in step 708 (step 724), and that number is set to the command being executed (step 724). 725) and the procedure returns to step 702. Similarly, when the input is the operation button 4b, the command number for the ▲ button is taken out and set to the command number being executed, and the process returns to step 702 (steps 726 and 72).
7).

As another example, the process may return from step 725 to step 715. This is because the command control data acquired in step 706 is saved in the command control data processing unit 8 in step 708.

When the input is the operation button 4c, the processing of this application is terminated, and the process proceeds to step 602 of FIG. 12, which is the application selection processing.

In steps 728 to 730, processing is performed when the response of the communication command issued in step 715 is an error. First, based on the error processing procedure described above, an error message is displayed on the display device 2 by the display unit 6 (step 728), and from the command control data saved in step 708,
The command number that transits at the time of error is taken out (step 729), the number is set to the command under execution (step 730), and the process returns to step 702.

Next, with reference to FIGS. 14 and 15, the processing for the received command of the IC card 5 in this embodiment will be described.

In FIG. 14, the OS 10 (FIG. 4) is I
When a command is received from the C card terminal device (step 801), the type of the command is determined (step 8).
02).

The received command is the structure 410 shown in FIG.
If the command is an application selection command, the specified application is selected (step 8).
03), generate a response (step 804), and send this response to the IC card terminal device (step 8).
05). In the IC card terminal device, this response is
It is received in step 502 of FIG. 11, step 603 of FIG. 12, step 703 of FIG. 13, or step 710.

When another command is received, the processing for this command is performed depending on the type of the received command.
When processing is performed in S10 (step 806), the OS10
May pass the received command to any of the applications, and control may be passed to it (step 807). In the former case, the OS 10 performs a process corresponding to this command, generates a response based on the result, and transmits it to the IC card terminal device (steps 804, 8).
05). In the latter case, the application to which the OS 10 passes the command is the application currently in the selected state, waits while this application performs processing for this command, and receives the response generated as a result of this processing (step 808). ), And transmits this to the IC card terminal device (step 805).

When the application is the command control data management AP 11 of FIG. 4, the commands to be passed include a command control data acquisition command and a command control data storage command, and the application is a general application APi (i = 1 2, ...
In the case of n), the command passed includes a command for acquiring display data to be displayed on the IC card terminal device. The latter command for acquiring the IC card terminal device display data is content that depends on the application, so description thereof will be omitted.

FIG. 15 is a flowchart showing the processing of the application for the received command when the application is the command control data management AP in step 807 of FIG. In FIG. 15, when the received command is passed from the OS 10, the command control data management AP 11 determines the type (step 811) and performs the process corresponding to each type. If the received command is a command control data acquisition command, the data number is extracted from the passed received command (step 812), and the data management unit 12 searches for the command control data of the designated number (step 813). , Pass that data as a response, and the OS
Control is returned to 10 (step 814). If the received command is a command control data storage command, the data number and stored data are extracted from the received received command (step 815) and the command control data of the designated number is stored in the data management unit 12. Then (step 816), control is returned to the OS 10 (step 814).

If the received command is an application name acquisition command, the application number is extracted from the passed received command (step 818) and the data management unit 12 searches for the application name data of the specified number (step 818). 819) and passes the data as a response, and returns the control to the OS 10 (step 814).

If the received command is another command, the corresponding process is performed (step 817),
The control is returned to the OS 10 (step 814).

As described above, in this embodiment, the processing related to the display of the specific information is performed using the data stored in the IC card, and the command control data is not changed without changing the program of the IC card terminal device. Since it is possible to change the communication command and the display format simply by updating, there is an advantage that the development of the IC card terminal device becomes easy. That is, an IC that supports multiple applications
Functions such as displaying specific information for the application program stored in the card can be realized by an inexpensive IC card terminal device.

Here, as an application in the IC card 5, an example in which balance data such as bank deposit is read and displayed on the display device 2 of the IC card terminal device 1 is shown, but the present invention is not limited to this. Is an example in which, for example, acoustic data in the IC card 5 is represented by sound or read aloud by synthetic voice, and further, with an IC card having a prepaid function such as the bus card described above, the balance is paid for each product purchase. The present invention can be applied to an example of subtraction and an example of adding points that can be used as a currency in the mall every time a product is purchased with a point card in the mall.

[0106]

As described above, the terminal device of the present invention reads the command control data including the communication command corresponding to the application to be accessed from the storage medium, and stores the command control data processing unit, and the command. A control unit for accessing the application using a communication command stored in the control data processing unit.

As a result, it is not necessary to store all communication commands corresponding to each of a plurality of applications in the terminal device in advance. Therefore, the required memory capacity does not increase. As a result, (a) the size of the terminal device is not increased. Therefore, portability is improved. (B) There is an effect that the cost can be suppressed.

Therefore, the cost can be reduced without taking the measure of using the ROM instead of the RAM for the cost reduction. R
Since it is AM, even if the communication command is changed, it is possible to cope with it.

In addition to the above configuration, the terminal device of the present invention further comprises an input section for receiving an input operation from a user for the purpose of accessing each application, and the command control data is stored in the input section. A transmission procedure that defines correspondence between an input operation and a communication command transmission process is included, and the control unit stores the communication command based on the transmission procedure in response to an input operation from the user to the input unit. It is a configuration for transmitting to a medium.

Therefore, in addition to the effects of the above configuration, even if the mechanism or rule regarding the transmission process for the input operation is changed in each application,
The command control data can be dealt with only by updating the command control data, and there is no need to change the inside of the terminal device.

In addition to the above configuration, the terminal device of the present invention further includes a display unit for displaying display data read as a result of accessing each application, and the command control data causes the display operation by the display unit. The display unit includes a specified display procedure, and the display unit displays the display data based on the display procedure.

Therefore, in addition to the effects of the above configuration, even if the mechanism or rule regarding the display of the display data is changed in each application, it can be dealt with only by updating the command control data. The effect that there is no need to change.

In addition to the above configuration, the terminal device of the present invention further comprises an error processing unit for performing processing when there is an error in the response from each application as a result of accessing each application, and the command control data But,
An error processing procedure that defines processing to be performed when the error occurs is included, and the error processing unit performs an error process based on the error processing procedure when the error occurs.

Therefore, in addition to the effects of the above configuration, in each application, the processing mechanism and the transmission processing rule, etc. when there is an error in the response obtained from each application as a result of accessing each application can be changed. Even in such a case, it is possible to deal with it by simply updating the command control data, and there is an effect that it is not necessary to change the inside of the terminal device.

Further, the storage medium of the present invention stores command control data including communication commands corresponding to each application for all applications in the storage medium, and stores command control data corresponding to the application to be accessed. This is a configuration including a command control data management application to be passed to the terminal device side in response to a request from the terminal device side.

Therefore, it is not necessary to store all the communication commands corresponding to each of the plurality of applications in the terminal device in advance. Therefore, the required memory capacity does not increase. As a result, (a) the size of the terminal device is not increased. Therefore, portability is improved. (B) There is an effect that the cost can be suppressed.

Therefore, the cost can be reduced without using the ROM instead of the RAM to reduce the cost. R
Since it is AM, even if the communication command is changed, it is possible to cope with it.

In addition to the above configuration, the storage medium of the present invention presents the communication command to be updated by the command control data management application in response to a request from the communication command updating device for updating the communication command. The communication command update device updates the communication command to be updated.

Therefore, in addition to the effect of the above configuration, there is an effect that the communication command can be easily updated.

According to the present invention, it becomes possible to realize a function of displaying specific information for a plurality of applications stored in an IC card by an inexpensive IC card terminal device, and change to an IC card application. Even if the content of the communication command with the IC card terminal device changes due to the occurrence of a problem, a function of displaying data held by a new application on the IC card terminal device without changing the IC card terminal device is realized. There is an effect that it becomes possible to do.

[Brief description of drawings]

FIG. 1 is a plan view showing a configuration example of an IC card terminal device according to the present invention.

FIG. 2 is a plan view showing a configuration example of an IC card terminal device according to the present invention.

FIG. 3 is a block diagram showing an internal configuration example of the IC card terminal device shown in FIG.

FIG. 4 is a block diagram showing an internal configuration example of an IC card.

FIG. 5 is a diagram showing an example of a format of a command and a response.

FIG. 6 is a diagram showing an example of a structure of command control data.

FIG. 7 is a diagram showing an example of a structure of command control data.

FIG. 8 is a diagram showing an example of a structure of command control data.

FIG. 9 is a diagram showing an example of a structure of command control data.

FIG. 10 is a diagram showing an example of a structure of command control data.

FIG. 11 is a flowchart showing a storage process of command control data in the IC card terminal device.

FIG. 12 is a flowchart showing a process of displaying an application name on the screen and selecting the application in the IC card terminal device.

FIG. 13 is a flowchart showing a startup process of a selected application in the IC card terminal device.

FIG. 14 is a flowchart showing processing for a received command in the IC card.

FIG. 15 is a flowchart showing a process for a received command performed by a command control data management AP in the IC card.

[Explanation of symbols]

1 IC card terminal device (terminal device) 2 display 3 card connector 4a Operation button 4b Operation button 4c operation button 5 IC card (storage medium) 6 Display 7 Input section 8 Command control data processing unit 9 Control unit (control unit, error processing unit) 10 OS 11 Command control data management AP 12 Data Management Department 13 Communication command processing unit 14 Unique processing unit 15 Communication command processing unit 410, 430, 450, 470 commands 420, 440, 460, 480 Response AP1 to APn applications

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Mutsuhiro Yamamoto             22-22 Nagaikecho, Abeno-ku, Osaka-shi, Osaka             Inside the company (72) Inventor Hideyuki Unno             2-3-1, Otemachi, Chiyoda-ku, Tokyo             Inside Telegraph and Telephone Corporation (72) Inventor Masahiro Yoshizawa             2-3-1, Otemachi, Chiyoda-ku, Tokyo             Inside Telegraph and Telephone Corporation (72) Inventor Tadao Takeda             1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo             Nutty Communications Inc.             Inside the company F-term (reference) 5B058 CA23 KA01 KA04 YA20                 5B076 AB17 BA10

Claims (6)

[Claims] 1. A terminal device, to which a storage medium storing a plurality of applications is connected, for accessing each application in the storage medium by using a communication command corresponding to each application. A command control data processing unit for reading and storing command control data including a communication command corresponding to the application, and a control unit for accessing the application by using the communication command stored in the command control data processing unit. A terminal device characterized by being provided. 2. An input unit for accepting an input operation from a user for the purpose of accessing each application, wherein the command control data is transmitted by defining the correspondence between the input operation by the input unit and the communication command transmission process. A procedure is included, The said control part transmits the said communication command to a storage medium based on the said transmission procedure with respect to the input operation to the said input part from a user, The claim 1 characterized by the above-mentioned. Terminal equipment. 3. A display unit for displaying display data read as a result of accessing each application, wherein the command control data includes a display procedure defining a display operation by the display unit, and the display unit includes: The terminal device according to claim 1, wherein the display data is displayed based on the display procedure. 4. An error processing unit that performs processing when a response from each application has an error as a result of accessing each application, and the command control data defines processing to be performed when the error occurs. 4. The error processing procedure according to claim 1, wherein said error processing section performs error processing based on said error processing procedure when said error occurs. Terminal device. 5. A storage medium that stores a plurality of applications and is accessed from a terminal device by using a communication command corresponding to each application for each of the applications. A command control data management application that stores command control data including a communication command corresponding to the application and passes the command control data corresponding to the application to be accessed to the terminal device side in response to a request from the terminal device side is provided. A storage medium characterized by. 6. An update target communication command is presented by the command control data management application in response to a request from the communication command update device for updating the communication command, and the update command is updated by the communication command update device. The storage medium according to claim 5, wherein the storage medium is stored.