Individual identification recognition system

• US 5,144,680 A
• Filed: 12/05/1990
• Issued: 09/01/1992
• Est. Priority Date: 03/01/1985
• Status: Expired due to Fees

• Current Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Original Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Inventors: Kobayashi, Bujirou, Gamo, Hiroshi, Kimura, Masatoshi
• Primary Examiner(s): Moore, David K.
• Assistant Examiner(s): COUSO, YON JUNG
• Application Number:
  US07/622,191
• Time in Patent Office: 636 Days
• Field of Search: 382/2, 382/4, 382/5, 382/58, 382/34, 356/71
• US Class Current: 382/124
• CPC Class Codes: G06Q 20/341 Active cards, i.e. cards including their own processing means, e.g. including an IC or chip
• CPC Class Codes: G06Q 20/40145 Biometric identity checks
• CPC Class Codes: G06V 40/12 Fingerprints or palmprints
• CPC Class Codes: G06V 40/55 Performing matching on a personal external card, e.g. to avoid submitting reference information
• CPC Class Codes: G07C 9/257 electronically G07C9/26 takes precedence
• CPC Class Codes: G07F 7/0873 Details of the card reader
• CPC Class Codes: G07F 7/1008 Active credit-cards provided with means to personalise their use, e.g. with PIN-introduction/comparison system

Abstract

An individual identification recognition system for judging whether a card possessor is an authorized card user. The system includes a card storing a fingerprint of the authorized card user, a card reader into which the card is inserted, and which reads the fingerprint of the card possessor and a judging means for judging whether a card possessor is an authorized card user based upon the result of a comparison of the fingerprint of the card possessor taken in by the card reader with the fingerprint registered in the card, which judging means can be provided in the card or the card reader.

Claims

1. A method of individual recognition for identifying an authorized user, utilizing a memory card and a card reader, comprising the steps of:

storing authorized user data, in a memory of the memory card, representative of specific characteristics of depths and intervals of a stereoscopic fingerprint of a finger of the authorized user and rotational speed of the finger during reading of the stereoscopic fingerprint;

coding a user stereoscopic fingerprint signal read from a fingerprint of a card user from a fingerprint reader located on the card reader, said user stereoscopic fingerprint signal including information indicative of the rotational speed of a corresponding finger of the user during reading;

transmitting said user stereoscopic fingerprint signal from the card reader to the memory card by virtue of manual manipulation of the memory card into the card reader;

extracting, within the memory card, specific characteristics of depths and intervals of the user fingerprint and the rotational speed of the corresponding finger during reading; and

comparing, on the memory card, said authorized user data stored in the memory with said extracted specific characteristics and the rotational speed for developing a signal indicative of correspondence therebetween.

2. The method of individual recognition of claim 1, said coding comprising multi-valve gradation coding of 6-8 bits.

3. The method of individual recognition of claim 1, further comprising the step of storing, in the memory of the memory card, a characteristic extraction program and a comparison program.

4. A method of individual recognition for identifying an authorized user utilizing a memory card and a card reader, comprising the steps of:

storing authorized user data, in a memory of the memory card, representative of specific characteristics of depths and intervals of a stereoscopic fingerprint of a finger of the authorized user and rotational speed of the finger during reading of the stereoscopic fingerprint;

coding a user stereoscopic fingerprint signal read from a fingerprint of a card user from a fingerprint reader located on the card reader, said user stereoscopic fingerprint signal including information indicative of the rotational speed of a corresponding finger of the user during reading;

transmitting said user stereoscopic fingerprint signal from the card reader to the memory card by virtue of manual manipulation of the memory card into the card reader;

extracting, within the memory card, specific characteristics of depths and intervals of the user fingerprint and the rotational speed of the corresponding finger during reading; and

comparing, on the memory card, a) the specific characteristics of depths and intervals of the authorized user data and those extracted from the user fingerprint, and b) the rotational speed of the authorized user data and that extracted from the user fingerprint to generate a signal indicative of correspondence therebetween,

said comparing of the rotational speeds preventing forced manipulation of the finger of the authorized user into the fingerprint reader by an unauthorized user during a criminal act to prevent fraudulent individual recognition.

5. The method of individual recognition of claim 4, said coding comprising multi-value gradation coding of 6-8 bits.

6. The method of individual recognition of claim 4, further comprising the step of storing, in the memory of the memory card, a characteristic extraction program and a comparison program.

7. A method of individual recognition for identifying an authorized user, utilizing a memory card and a card reader, comprising the steps of:

storing authorized user data, in a memory of the memory card, representative of specific characteristics of depths and intervals of a stereoscopic fingerprint of a finger of the authorized user and rotational speed of the finger during reading of the stereoscopic fingerprint;

transmitting the authorized user data from the memory card to the card reader by virtue of manual manipulation of the memory card into the card reader;

coding a user stereoscopic fingerprint signal read from a fingerprint of a card user from a fingerprint reader located on the card reader, the user stereoscopic fingerprint signal including information indicative of the rotational speed of a corresponding finger of the user during reading;

extracting, within the card reader, specific characteristics of depths and intervals of the user fingerprint and the rotational speed of the corresponding finger during reading; and

comparing, on the card reader, the authorized user data transmitted from the memory card with the extracted specific characteristics and the rotational speed for developing a signal indicative of correspondence therebetween.

8. The method of individual recognition of claim 7, said coding comprising multi-value gradation coding of 6-8 bits.

9. A method of individual recognition for identifying an authorized user, utilizing a memory card and a card reader, comprising the steps of:

storing authorized user data, in a memory of the memory card, representative of specific characteristics of depths and intervals of a stereoscopic fingerprint of a finger of the authorized user and rotational speed of the finger during reading of the stereoscopic fingerprint;

transmitting the authorized user data from the memory card to the card reader by virtue of manual manipulation of the memory card into the card reader;

coding a user stereoscopic fingerprint signal read from a fingerprint of a card user from a fingerprint reader located on the card reader, the user stereoscopic fingerprint signal including information indicative of the rotational speed of a corresponding finger of the user during reading;

extracting, within the card reader, specific characteristics of depths and intervals of the user fingerprint and the rotational speed of the corresponding finger during reading; and

comparing, on the memory card, a) the specific characteristics of depths and intervals of the authorized user data and those extracted from the user fingerprint, and b) the rotational speed of the authorized user data and that extracted from the user fingerprint to generate a signal indicative of correspondence therebetween.

10. The method of individual recognition of claim 9, said coding comprising multi-value gradation coding of 6-8 bits.

11. An individual recognition system comprising:

card reader means including coding means for coding a user stereoscopic fingerprint signal read from a fingerprint of a card user from a fingerprint reader located on said card reader, the user stereoscopic fingerprint signal including information indicative of the rotational speed of a corresponding finger of the user during reading; and

a memory card including a memory means for storing authorized user data representative of specific characteristics of depths and intervals of a stereoscopic fingerprint of a finger of an authorized user and rotational speed of the finger during reading of the stereoscopic fingerprint, said memory card communicable with said card reader means by virtue of manual manipulation of said memory card into said card reader means, said memory card further comprising

extraction means, which receives the user stereoscopic fingerprint signal upon manual manipulation of said memory card into said card reader means, for extracting specific characteristics of depths and intervals of the user fingerprint and the rotational speed of the corresponding finger during reading, and

comparison means, coupled to said memory card and said extraction means, for comparing the authorized user data stored in said memory card with the extracted specific characteristics and the rotational speed for developing a signal indicative of correspondence therebetween.

12. The individual recognition system of claim 11, said memory means also storing a characteristic extraction program and a comparison program,

the comparing of the rotational speeds preventing forced manipulation of the finger of the authorized user into said fingerprint reader by an unauthorized user during a criminal act to prevent fraudulent individual recognition.

13. The individual recognition system of claim 12, said coding means coding the user stereoscopic fingerprint signal with a multi-value gradation code of 6-8 bits.

14. An individual recognition system comprising:

a memory card for storing authorized user data representative of specific characteristics of depths and intervals of a stereoscopic fingerprint of a finger of the authorized user and rotational speed of the finger during reading of the stereoscopic fingerprint; and

card reader means, communicable with said memory card by virtue of manual manipulation of said memory card into said card reader means, said card reader means comprising

coding means for coding a user stereoscopic fingerprint signal read from a fingerprint of a card user from a card reader located on said card reader, the user stereoscopic fingerprint signal including information indicative of the rotational speed of a corresponding finger of the user during reading,

extraction means, coupled to said coding means, for extracting specific characteristics of depths and intervals of the user fingerprint and the rotational speed of the corresponding finger during reading, and

comparison means, which receives the authorized user data from said memory card upon manual manipulation of said memory card into said card reader means, for comparing the authorized user data with the extracted specific characteristics and the rotational speed for developing a signal indicative of correspondence therebetween.

15. The individual recognition system of claim 14, said coding means coding the user stereoscopic fingerprint signal with a multi-value gradation code of 6-8 bits,

the comparing of the rotational speeds preventing forced manipulation of the finger of the authorized user into said fingerprint reader by an unauthorized user during a criminal act to prevent fraudulent individual recognition.

16. A method of individual recognition for identifying an authorized user, utilizing a memory card and a card reader, comprising the steps of:

storing authorized user data, in a memory of the memory card, representative of specific characteristics of depths and intervals of a planar fingerprint and a stereoscopic fingerprint of a finger of the authorized user and rotational speed of the finger during reading of the stereoscopic fingerprint;

coding a user planar fingerprint signal and a user stereoscopic fingerprint signal read from a fingerprint of a card user from a fingerprint reader located on the card reader, the stereoscopic fingerprint signal including information indicative of the rotational speed of a corresponding finger of the user during reading;

transmitting the user planar and stereoscopic fingerprint signals from the card reader to the memory card by virtue of manual manipulation of the memory card into the card reader;

extracting, within the memory card, specific characteristics of depths and intervals of the user fingerprint from the user planar and stereoscopic fingerprint signals and the rotational speed of the corresponding finger during reading; and

comparing, on the memory card, the authorized user data stored in the memory and the extracted specific characteristics for developing a signal indicative of correspondence therebetween,

the authorized user data pertaining to the stereoscopic fingerprints and the rotational speed being utilized as a whole or in part when comparison of the planar fingerprints is inconclusive.

17. A method of individual recognition for identifying an authorized user, utilizing a memory card and a card reader, comprising the steps of:

storing authorized user data, in a memory of the memory card, representative of specific characteristics of depths and intervals of a planar fingerprint and a stereoscopic fingerprint of a finger of the authorized user and rotational speed of the finger during reading of the stereoscopic fingerprint;

transmitting the authorized user data from the memory card to the card reader by virtue of manual manipulation of the memory card into the card reader;

coding a user planar fingerprint signal and a user stereoscopic fingerprint signal read from a fingerprint of a card user from a fingerprint reader located on the card reader, the stereoscopic fingerprint signal including data indicative of the rotational speed of a corresponding finger of the user during reading;

extracting, within the card reader, specific characteristics of depths and intervals of the user fingerprint from the user planar and stereoscopic fingerprint signals and the rotational speed of the corresponding finger during reading; and

comparing, on the card reader, the authorized user data transmitted from the memory card with the extracted specific characteristics for developing a signal indicative of correspondence therebetween,

the authorized user data pertaining to the stereoscopic fingerprints and the rotational speed being utilized as a whole or in part when comparison of the planar fingerprints is inconclusive.

18. An individual recognition system comprising:

card reader means including coding means for coding a user planar fingerprint signal and a user stereoscopic fingerprint signal read from a fingerprint of a card user from a fingerprint reader located on said card reader, the stereoscopic fingerprint signal including information indicative of the rotational speed of a corresponding finger of the user during reading; and

a memory card including a memory means for storing authorized user data representative of specific characteristics of depths and intervals of a planar fingerprint and a stereoscopic fingerprint of a finger of an authorized user and rotational speed of the finger during reading of the stereoscopic fingerprint, said memory card communicable with said card reader means by virtue of manual manipulation of said memory card into said card reader means, said memory card further comprising

extraction means, which receives the user planar and stereoscopic fingerprint signals upon manual manipulation of said memory card into said card reader means, for extracting specific characteristics of depths and intervals of the user fingerprint thereform and the rotational speed of the corresponding finger during reading, and

comparison means, coupled to said memory card and said extraction means, for comparing the authorized user data stored in said memory card with the extracted specific characteristics and for developing a signal indicative of correspondence therebetween,

the authorized user data pertaining to the stereoscopic fingerprints and the rotational speed being utilized as a whole or in part when comparison of the planar fingerprints is inconclusive.

19. An individual recognition system comprising:

a memory card for storing authorized user data representative of specific characteristics of depths and intervals of a planar fingerprint and a stereoscopic fingerprint of a finger of the authorized user and rotational speed of the finger during reading of the stereoscopic fingerprint; and

card reader means, communicable with said memory card by virtue of manual manipulation of said memory card into said card reader means, said card reader means comprising

coding means for coding a user planar fingerprint signal and a user stereoscopic fingerprint signal read from a fingerprint of a card user from a fingerprint reader located on said card reader, the user stereoscopic fingerprint signal including information indicative of the rotational speed of a corresponding finger of the user during reading,

extraction means, coupled to said coding means, for extracting specific characteristics of depths and intervals of the user fingerprint from the user planar fingerprint signal and the user stereoscopic fingerprint signal and the rotational speed of the corresponding finger during reading, and

comparison means, which receives the authorized user data from said memory card upon manual manipulation of said memory card into said card reader means, for comparing the authorized user data with the extracted specific characteristics and for developing a signal indicative of correspondence therebetween,

the authorized user data pertaining to the stereoscopic fingerprints and said rotational speed being utilized as a whole or in part when comparison of said planar fingerprints is inconclusive.