KR100239170B1 - Control method of smart card apparatus - Google Patents

Abstract

1. Technical field to which the invention described in the claims belongs

Smart card device

2. Technical Challenges to be Solved by the Invention

And a smart card device control method capable of a self-user interface.

3. The point of the solution of the invention

The smart card device includes a power supply unit, a key input unit, and a display unit, and is capable of a user interface without connection with a card reader.

4. Important Uses of the Invention

A smart card device that performs its own interface with the user

Description

Smart card device control method capable of its own user interface

Figure 1 is a block diagram of a smart card device capable of its own user interface according to an embodiment of the present invention;

FIG. 2 is a flow chart illustrating a process of controlling a smart card device capable of its own user interface according to an embodiment of the present invention; FIG.

Figure 3 is a block diagram of a typical smart card device;

FIG. 4 is a configuration diagram of input / output section contact terminals of a typical smart card device; FIG.

Description of the Related Art

11: key input unit 12: display unit

13: power supply unit 14: central processing unit

15: input / output unit 16: memory unit

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an IC (Integrated Circuit) card device, and more particularly, to a smart card device control method capable of its own user interface.

An IC card, which is a data storage device in the form of a card, is mainly used in card terminals such as cash dispensers and identification devices. In addition, in the case of a cellular phone adopting a GSM (Global System for Mobile) communication method, personal information and system information are stored in the IC card so as to be portable. The above-mentioned card terminals are equipped with a card reader.

Typically, an IC card is a memory card and a smart card. Since the memory card has only a memory for storing service information, it can not perform data communication with the card terminal. As a result, the service information stored in the memory card by the card terminal can not be easily read.

However, since the smart card device has a central processing unit in addition to the memory, the service information can be registered, changed and deleted. Of course, the access of the central processing unit to the memory at this time is possible because an external card terminal supplies various control signals. In addition, the central processing unit is provided with a serial input / output unit, and according to a recommendation protocol specified in ISO.7816 / Because it can communicate with the terminal. An example of the configuration of such a smart card device and its operation are described in detail in Patent Application Nos. 94-25042, 94-25043 and 94-25044 filed by the present applicant.

For example, FIG. 3 is a block diagram of a typical smart card device.

The memory unit 36 may be a single-chip EEPROM in addition to a RAM for temporary information storage. Alternatively, the memory unit 36 may be a mask ROM, a flash memory, EEPROM and RAM for temporary information storage are also used. At this time, the program memory stores a program for controlling the overall operation of the smart card device, and the data memory stores various service information. The reason for using the EEPROM is that the smart card device is kept separated from the card reader at normal times. In other words, since the EEPROM is a non-volatile memory, the information of the previous state can be maintained intact even when no power is supplied, and the EEPROM can be electrically erased to read and write service information .

The central processing unit 34 can communicate serial data with the card reader through the input / output unit 35 asynchronously. Therefore, the central processing unit 34 can read the service information of the memory unit 36 via the input / output unit 35 and transmit the read service information to the card reader, and transmits the service information received from the card reader to the memory unit 36 ). ≪ / RTI >

The memory unit 36 is also provided with a control unit 34 for controlling the central processing unit 34 to transmit and receive data through the input and output unit 35 or to access a specific address related to data processing (read, write) It also stores program information. And stores all service information for the card user, the issuer, and the sub-issuer.

FIG. 4 is a view of the contact terminal of the input / output section of a typical smart card device, which refers to the GSM 11.11 standard and the ISO 7816/1 standard. The use of each contact terminal is shown in the following table.

The smart card thus has a plurality of terminals connected to the card reader. One of them is the power supply terminal. It also has a system initialization signal input terminal and a serial data input / output (asynchronous) terminal. By having such a terminal, the instant the smart card device is connected to the card reader, the smart card device receives the operation power and performs the initialization operation by the reset signal received from the card reader, And performs data communication with the reader. Where the power supply (Vpp) is used to write information to a flash or EEPROM memory capable of storing long term information on the smart card.

As a result, a typical smart card device can only perform a predetermined function when it is connected to the card terminal. Therefore, in an environment in which connection with a card terminal is impossible during carrying, there is no way for the user to check what contents of the card are stored in the card. For example, in the case of a cash card, it is impossible to investigate the balance of the deposit, but in places where there is no cash dispenser. This can not be very inconvenient for the user.

It is therefore an object of the present invention to provide a smart card device control method capable of a user interface.

According to an aspect of the present invention, there is provided a smart card including a power supply unit for supplying power to a smart card itself, a key input unit for receiving a key corresponding to a command of a user, and a display unit for displaying predetermined data, A method of controlling a smart card device capable of communicating and using the power of the card reader, comprising the steps of: confirming a source of the supplied power source upon initialization by power supply; and if the source of the supplied power source is a card reader Setting a mode of the smart card device to a card reader connection mode; and setting the mode of the smart card device to the portable mode if the source of the supplied power source is the power supply portion.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the following description, numerous specific details are set forth, such as specific circuit components, etc., which are provided for a better understanding of the present invention. It is to be understood that the present invention may be practiced without these specific details, To those of ordinary skill in the art. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 is a block diagram of a self-user interfaceable smart card device according to an embodiment of the present invention. In the configuration of the above-described second embodiment, the power supply unit 13, the key input unit 11, do.

The power supply unit 13 supplies power necessary for the smart card device under predetermined control. This is for the purpose of supplying power to the card reader even if the card reader is not connected to the card reader. The power supply unit 13 uses a thin solar cell or the like to ensure the mobility of the card.

The key input unit 11 includes a power supply key for operating the power supply unit 13 and one or more keys for inputting various data and commands. The key input unit 11 decodes an input of a certain key, .

The display unit 14 may be an LCD and outputs information read from the memory unit 16 under the control of the central processing unit.

Therefore, the user can visually check the content of the data stored in the memory unit 16 using the key of the key input unit 11. [

FIG. 2 is a flowchart illustrating a process of controlling a smart card device capable of a self-user interface according to an embodiment of the present invention. When power is supplied in step (2a), the central processing unit 14 detects this and starts the initialization operation. In step (2b), it is checked whether or not the currently supplied power is from the card reader. If it is determined that the card reader is the card reader, the flow advances to step (2c) to set the card reader connection mode.

On the other hand, if it is determined in step (2b) that the power source currently supplied from the card reader is not the power supplied from the power supply unit 13 by inputting the power key, In step (2d), it is checked whether key input from the key input unit 11 has occurred. If it is determined that the key is input, the process proceeds to step (2e), and the key processing routine is performed. Then, in step (2f), the display unit (12) is controlled for visual display according to the result. Examples of such operations may be operations such as registering arbitrary information in the memory unit 16 or checking, changing, and deleting information already registered in the memory unit 16. [

On the other hand, if the key input from the key input unit 11 is not generated in step (2d), the process proceeds to step (2g), waits for a predetermined time, and then returns to step (2d) Goes. At this time, in order to restrict the time for repeating the key input check, it is checked whether or not a timeout is checked in step (2f), and if the timeout is ended, the process is terminated without returning to step (2d).

As described above, the present invention has an advantage of being able to perform an interface with a user and register, check, change and delete information stored in a memory in the card device at any time without connecting to a card reader.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments, but is capable of various modifications within the scope of the invention. Therefore, the scope of the present invention should not be limited by the illustrated embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

Claims (2)

A power supply unit for supplying power to the smart card itself, a key input unit for receiving a key corresponding to a command of the user, and a display unit for displaying predetermined data, A method of controlling a card device, the method comprising: checking a source of the power source when initializing by power supply; and if the source of the supplied power source is a card reader, And setting a mode of the smart card device to a portable mode if the source of the supplied power source is the power supply source. The method according to claim 1, wherein the portable mode is a mode for performing a corresponding key process corresponding to a key input from the key input unit and displaying the result on the display unit.