JPS6368991A - Method for discriminating ic card - Google Patents

Abstract

PURPOSE:To inhibit the use by persons other than a user without depending on the memory of the user by converting a voiceprint pattern which is the specific feature of the user, into image and storing it to an IC card as ID information. CONSTITUTION:Voiceprint of a user of an IC card 8 is inputted from microphone 2 to a voice identifying circuit 3. Voiceprint information is selected by the circuit 3, and voiceprint information is supplied by analog electric signals to an image synthesizing device 4. The feature part of the voiceprint information is extracted by the synthesizing device 4 and digitalized voiceprint pattern information signals are supplied to a write control circuit 5. The voiceprint information is recorded in the rewritable ROM8b of the IC card 8. When a user uses the IC card 8, voiceprint pattern information from the synthesizing device 4 and ID information from the IC card 8 are compared in a pattern comparator 7, and the use by persons other than the user of the IC card is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an IC card that integrates storage means such as a random access memory, and more particularly to a method for identifying an IC card.

(Prior Art) Generally speaking, an IC card is considered that is held by each user and has a built-in memory integrated circuit (IC) that stores the user's personal information, such as bank deposit information instead of a bank passbook. .

Conventionally, with this type of IC card, when using this IC card, in order to confirm that the IC card user is the user himself/herself, when the IC card is set in the IC card recognition machine, the user Identification (ID) information such as numerical values and character symbols known only to the person himself/herself is entered into the identification machine, and if the ID information registered on the IC card matches the input ID information, the IC card is recognized. The identifier is I
I/O processing to the C card is permitted.

However, there is a problem in that if the user forgets his/her ID information, the user cannot use the IC card.

Another problem is that when a user loses an IC card, if the person who finds the IC card analyzes the personal identification information (ID information) on the IC card, the person who finds the IC card can misuse the found IC card. There was also.

[Problems to be solved by the invention] Therefore, the purpose of the present invention is to solve such problems,
To provide an IC card identification method that allows a user to use a monthly C card reliably and prevents a person who finds the IC card from using the IC card if the IC card is lost.

[Means for solving problems]

In order to achieve such an object, the present invention listens to the voice of the IC card owner in advance, stores voiceprint pattern information obtained by extracting the characteristic parts in advance in the IC card, and identifies the IC card. At that time, we listen to the voice of the user of the IC card and extract voiceprint information from the voice,
Compare it with the voiceprint pattern information read from the IC card,
Voiceprint pattern information heard from the user's voice and the above I
The IC card is accepted when the voiceprint pattern information read from the C card matches.

[Effect]

The present invention visualizes the voiceprint pattern, which is a unique characteristic of the user, and stores it in the IC card as ID information.As a result, the IC card can be used without depending on the user's memory ability. It is possible to make it impossible for anyone other than the user to use it.

〔Example〕

FIG. 1 shows an example of ID information registration and identification procedures in an embodiment of the present invention.

Reference numeral 2 is a microphone for listening to the voiceprint of the IC card user according to the present invention, and reference numeral 3 is a voice recognition circuit for selecting voiceprint information from the heard voice signal. Reference numeral 13 denotes a signal line for transmitting voiceprint information, which is an analog electrical signal outputted from the voice recognition circuit 3, to the image synthesis device 4.

Here, when registering the ID information of the owner in the IC card, that is, when issuing the IC card as a valid card, the image synthesis device 4 extracts the characteristic part of the voiceprint information, and extracts the voiceprint pattern of the digital signal. Convert it into an information signal.

The voiceprint pattern information signal is sent to the card writing control device 5 via a signal line 4, and the writing control device 5 sends this image signal along with a write command signal to the IC card 8.
sent to. Card controller 8 inside IC card 8
a is R, which cannot rewrite manually created voiceprint pattern information.
Write it to OM8b and register the voiceprint as ID information in the IC card. Next, a case will be described in which an ID-registered IC card is used by a user.

Voice information manually input by the user is converted into an analog electrical signal by the microphone 2, and voice print information is selected by the voice recognition circuit 3 and input manually to the image synthesis device 4 through the signal line L3. At the same time, the card controller 8a of the IC card 8 is activated and outputs the ID information stored in the ROM 8b to the pattern comparison device 7 via the signal line 6.

A comparison device 7 compares the voiceprint pattern information output from the image synthesis device 4 and the ID information output from the IC card, and if the image pattern information (voiceprint information) and ID information match, the IC card information is centrally controlled. A signal for permission to use the IC card is transmitted to the main controller (host computer) 6 through the signal line ρ8. Therefore, when the main controller 6 inputs a usage permission signal manually, it exchanges IC card information with the user via an input/output device (not shown), and also uses the non-volatile random access memory (RAM) in the IC card 8. 8G and the above IC cart information can be read and written.

〔Effect of the invention〕

As explained above, according to the present invention, voiceprint information is patterned and registered in the IC card as ID information, so users and cart issuers do not have to worry about the loss or misuse of the card. It is useful for improving trust in the IC card itself, and the card issuer does not have to own each user's ID information; it can simply check the user's ID based on the pattern information in the IC card, so it can be used for searching. This has the effect of saving time and cost.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing an IC card registration and identification procedure in an embodiment of the present invention. 2... Microphone, 3... Voice identification circuit, 4... Image synthesis device, 5... Writing control device, 6... Main control device, 7... Pattern comparison device, 8... IC card, 8a...Card controller, 8b...ROM. 8c...4AM 0 Figure 1

Claims (1)

[Claims] Voice print pattern information obtained by listening to the voice of the owner of an IC card in advance and extracting its characteristic parts is stored in the IC card in advance, and when identifying the IC card, the voice print pattern information is stored in advance in the IC card. listening to the voice of the user, comparing the voiceprint information obtained by extracting the characteristic parts with the voiceprint pattern information read from the IC card, and comparing the voiceprint pattern information listened to from the voice of the user with the voiceprint information read from the IC card. A method for identifying an IC card, characterized in that the IC card is accepted when the voice print pattern information matches the voice print pattern information.