JPH025195A - Ic card - Google Patents

Abstract

PURPOSE:To prevent an IC card from being simply and illegally used by a third person by storing finger print data relating to a specific person, reading out the finger print of a finger set up on a finger setting part, and at the time of deciding coincidence between both the finger print data by a CPU, permitting the opening of a file. CONSTITUTION:When a person carrying an IC card 2 sets up his(her) finger on the finger setting part 10, the finger print is read by a finger print reading part 34 and the data (read finger print data) of the read finger are collated with registered finger print data previously stored in a memory 32, and the coincidence/discrepance of both the finger print data is decided based on the basis of the collated result. At the time of coincidence of both the data, the CPU 36 permits the opening of a file corresponding to a file number corresponding to the registered finger print data stored in the memory 32. Since the ID number of the IC card is not known by a third person, the security of the card can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of the Invention) The present invention provides a finger rest on an appropriate location on the front or back surface, on which a finger is placed for reading a fingerprint, and a fingerprint of the finger placed on the finger rest. The data (read fingerprint data) is
The present invention relates to an IC card that is capable of performing a predetermined operation when a fingerprint matches data registered in advance in a memory (registered fingerprint data).

(Prior art and its problems) As a conventional IC card of this type, by operating any key on the keyboard section equipped with it,
A method in which the person carrying the IC card is required to enter a PIN number unique to the person carrying the IC card, and when the input PIN number matches a pre-registered PIN number, the use of the IC card is permitted. The fingerprint data of the person carrying the IC card is registered in advance as registered fingerprint data in the memory, and when the fingerprint of the person carrying the IC card is read, the read fingerprint data related to the reading matches the registered fingerprint data. A device that displays a personal identification number unique to the person carrying the device on the display when
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In both of the above methods, the I
Although attempts are made to prevent unauthorized use of the C-card, the former method has the problem that if the person carrying the card forgets his or her personal identification number, it becomes impossible to use the card, and the latter method This system has a problem in that if a third party sees the password displayed on the display, it is impossible to prevent unauthorized use by the third party.

(Purpose of the Invention) The present invention has been made in view of the above circumstances, and does not require a PIN number, thus preventing the user from forgetting the PIN number or letting a third party know the PIN number. The purpose of the present invention is to provide an IC card that is free from such problems.

(Structure and Effects of the Invention) In order to achieve such an object, the IC card of the present invention includes a finger rest on which a finger is placed for reading a fingerprint, and a fingerprint of the finger placed on the finger rest. an internal circuit that performs a predetermined operation based on the data; the internal circuit reads the fingerprint of a finger placed on the finger placement section; and a memory in which fingerprint data regarding a specific individual is stored in advance as registered fingerprint data. In addition, a fingerprint reading unit outputs the read fingerprint as read fingerprint data, and a fingerprint reading unit that compares both the fingerprint data, determines whether the two fingerprint data match or disagree based on the result of the comparison, and responds to the determination. and a CPU that performs predetermined operation control.The memory stores a file number corresponding to the registered fingerprint data of a specific individual, and when the CPU determines that the two fingerprint data match, It is characterized by file management that allows opening of the file corresponding to the specified file number.

In the above configuration, the person carrying the IC card places his or her finger on the finger rest provided on the front or back surface. Then, the fingerprint of the finger placed on the finger rest is read by the fingerprint reader. The read fingerprint data (read fingerprint data) is compared by the CPU with the registered fingerprint data pre-stored in the memory, and based on the result of the comparison, it is determined whether the two fingerprint data match or do not match. It will be judged. If the CPU determines that both fingerprint data match, the CPU performs file management to permit opening of the file corresponding to the file number corresponding to the registered fingerprint data stored in the memory.

Therefore, according to the present invention, since a password is not used, there is no possibility of forgetting the password or the password being known to a third party, thereby improving security.

(Description of Embodiments) Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a plan view of an IC card according to an embodiment of the present invention, FIG. 2 is a side sectional view of the IC card, and FIG. 3 is an internal circuit diagram of the IC card.

The IC card 2 of this embodiment shown in these figures is first composed of an input/output contact 4 for inputting/outputting data with an external device, a liquid crystal, etc., as shown in FIG. a display section 6 for displaying required data; a keyboard section 8 consisting of numeric keys "0" to "9" and funxidine keys r YESJ and r NOJ; A finger rest 10 is provided.

As shown in FIG. 2, this IC card 2 also has a thin bottom wall 12 whose outer shape is made of resin such as plastic.
and a thick side wall 14 erected around the bottom wall 12.
The bottom wall 12 has a central wall portion 16 that is raised toward the front surface.

A light guide plate 18 capable of guiding light is housed in a space between the opposing sides of the side walls 14 and the center wall portion 16. A light emitting diode 20 is provided between the left side wall I4 and the center wall I6, and a CCD image input unit 22 is provided between the right side wall 14 and the center wall 16. It is being Light guide plate 18 and CCD image input section 2
A hologram 24 is provided between the two.

When the finger 26 is placed on the finger rest 10 as shown in the figure, the light 28 from the light emitting diode 20 passes through the light guide plate 18 and reaches the finger 2.
6, the reflected light 30 is reflected by the finger 26, and the reflected light 30 is guided through the light guide plate 18 and then manually inputted to the CCD image input unit 22 via the hologram 24.

The reflected light 30 corresponding to the optical image of the fingerprint of the finger 26 input to the CCD image input unit 22 is reflected by the COD.
The image input unit 22 converts the optical image into an electrical signal corresponding to the optical image.

The light emitting diode 20, the light guide plate 18, the hologram 24
, and the CCD image input section 22 constitute a fingerprint reading section that reads the fingerprint placed on the finger placement section 1O and outputs fingerprint data corresponding to the reading as read fingerprint data.

The IC card 2 of this embodiment having the above configuration is provided with an internal circuit as shown in FIG. 3. This internal circuit includes a memory 32 in which fingerprint data related to a specific individual is stored in advance as registered fingerprint data, the fingerprint reading unit 34 that outputs the read fingerprint data as read fingerprint data, and reads the registered fingerprint data from the memory 32. , the read registered fingerprint data and the fingerprint reading unit 34
It compares the read fingerprint data given by a display signal output section 38 that outputs a display signal to the display section 6 in response to a command signal from the CPU 36; a power supply section 40;
It consists of an operation signal output section 42 that outputs operation signals corresponding to operations on the keyboard section 8 to the CPU 36.

In the above basic configuration, the memory 32 stores processed data 1, 2, . . . corresponding to registered fingerprint data of a specific individual as shown in FIG. ...n and file number (No.)1
,2. ... and other data are stored. An example of the contents of each processing data is shown in FIG.

For example, as processing data I, as shown in FIG. , and the registered fingerprint data ■ corresponding to the file No. 6 are stored, respectively. The registration number of rll12J, the corresponding file number of "3",
The same applies to the registered fingerprint data (2) corresponding to this.

Also, for example, if the file number is "1", the file name is "Saved Amount", if the file number is "2", the file name is "Door Control", and if the file number is "3", the file name is "Saved Amount". If there is, the file name will be “Credit Usage Limit”
If the file number is "4", the file name is "Car plate number."

”.

Next, the operation of the IC card 2 according to this embodiment will be explained with reference to FIG. Part 1 of FIG. 6 is a flowchart for registrants, and Part 2 is a flowchart for system administrators. First, when registering the fingerprint data of the first system administrator as registered fingerprint data, the process starts from step A "enter registration mode" and moves to each step of the flowchart shown in step A. First, the system administrator places his or her finger on the finger placement portion lO on the surface of the IC card 2. As a result, if the finger detection is OK, the fingerprint is read by the fingerprint reading unit 14, and the registration number corresponding to the read fingerprint data is input by operating the keyboard unit 8, and further processing data is created. Then, the processed data is stored in the memory 32.

Next, when registering the user's fingerprint, start from the flowchart 1 to read the fingerprint of the system administrator. That is, if the system administrator's finger detection is OK, the fingerprint data of the system administrator is read, the registered fingerprint data of the system administrator is read out, and the read fingerprint data is compared with the registered fingerprint data. At the same time, if the verification is OK, it is then determined whether the fingerprint is at the registrant level, and if it is at the registrant level, the system moves to registration mode A and registers the user's fingerprint. do.

In this way, the user's processing data is stored in the memory 32.

Next, the operation of file oven management will be described with reference to FIG. First, if the detection of the finger placed on the finger placement part 10 is OK after starting, the fingerprint is read and then the registered processing data is read out. The registered fingerprint data related to the read processing data is compared with the read fingerprint data, and if the comparison is OK, an input operation for file No. 1 to be opened is performed. After this input operation, if it is a permitted file number, then the file N
Output the file contents related to o. In addition, if you want to output the contents of all files, after verifying OK,
It is also possible to output the entire contents of the file.

[Brief explanation of the drawing]

The figure relates to an embodiment of the present invention, and FIG.
2 is a side sectional view of the IC card shown in FIG. 1, FIG. 3 is an internal circuit diagram of the IC card, and FIG. 4 is a diagram showing an example of the structure of data stored in the memory. FIG. 5 is a diagram showing an example of the structure of the processing data shown in FIG. 4, FIG. 6 is a flowchart for explaining the operation of registration processing, and FIG. 7 is a flowchart for explaining the operation of file oven management.

Claims (1)

[Claims] (1) A finger rest on which a finger is placed for reading a fingerprint, and an internal circuit that performs a predetermined operation based on the fingerprint data of the finger placed on the finger rest; a memory in which fingerprint data related to is stored in advance as registered fingerprint data; a fingerprint reading unit that reads the fingerprint of a finger placed on the finger rest and outputs the read fingerprint as read fingerprint data; and determine whether the two fingerprint data match or mismatch based on the results of the comparison.
and a CPU that performs predetermined operation control in response to the determination, and the memory stores a file number corresponding to the registered fingerprint data of a specific individual, and the CPU determines that the two fingerprint data match. An IC card, wherein the IC card performs file management that permits opening of a file corresponding to the file number.