Biometric sequence codes

• US 6,229,906 B1
• Filed: 06/01/1999
• Issued: 05/08/2001
• Est. Priority Date: 07/25/1996
• Status: Expired due to Term

• Current Assignee: California Institute of Technology
• Original Assignee: California Institute of Technology
• Inventors: Psaltis, Demetri, Pu, Allen
• Primary Examiner(s): MEHTA, BHAVESH M
• Application Number:
  US09/323,558
• Time in Patent Office: 707 Days
• Field of Search: 382/115, 382/116, 382/117, 382/124, 382/125, 382/127, 256/71, 340/825.31, 340/825.34, 235/379, 235/380, 235/382, 235/382.5, 902/3, 902/5
• US Class Current: 382/116
• CPC Class Codes: G06V 40/12 Fingerprints or palmprints
• CPC Class Codes: G07C 2209/14 With a sequence of inputs of different identification information
• CPC Class Codes: G07C 9/26 using a biometric sensor integrated in the pass
• CPC Class Codes: G07C 9/37 using biometric data, e.g. fingerprints, iris scans or voice recognition

Abstract

An identification system using biometric information of human body parts and a secret sequence code. In particular, biometric information of human body parts is used to form the secret sequence code. Specifically, a combination entry device recognizes user'"'"'s fingerprints which are entered as a sequence. The fingerprints must be entered in the proper sequence in order to be recognized by the system. The fingerprints are preferably recognized using a fast technique with a low-probability level of rejection. While the sensor can be fooled for any one fingerprint. The use of a plurality of different fingerprints improves the identification capability. In particular, the combination of fingerprints in the proper order is necessary to undo the lock.

Claims

1. A biometric sequence code for identification, comprising:

a first part which is a first body feature that is obtained from a first body part from a user in a first way at a first time; and

a second part which is a second body feature that is obtained from a second body part from said user in a second way at a second time to have a predetermined relationship with said first part so that a match is made only when said first and said second body features are present and when said predetermined relationship is satisfied.

2. A biometric sequence code as in claim 1, wherein said first way includes a first time duration and said second way includes a second time duration, respectively.

3. A biometric sequence code as in claim 2, wherein said first body part is identical to said second body part and said first body feature is identical to said second body feature, respectively;

thereby said biometric sequence code resembling a Morse code.

4. A biometric sequence code as in claim 1, wherein said first way includes a first orientation of said first body part and said second way includes a second orientation of said second body part relative to said first orientation thereof.

5. A biometric sequence code as in claim 4, wherein said first body part is identical to said second body part and said first body feature is identical to said second body feature, respectively.

6. A biometric sequence code as in claim 1, wherein said first way includes a first spatial position of said first body part and said second way includes a second spatial position of said second body part relative to said first spatial position, respectively.

7. A biometric sequence code as in claim 6, wherein said first body part is identical to said second body part and said first body feature is identical to said second body feature, respectively.

8. A biometric sequence code as in claim 6, wherein said first way further includes a first orientation of said first body part and said second way further includes a second orientation of said second body part relative to said first orientation thereof, respectively.

9. A biometric sequence code as in claim 1, further including a third body feature that is obtained from a third body part of another user in a third way.

10. A biometric sequence code as in claim 9, wherein said first way includes a first time duration, said second way includes a second time duration, and said third way includes a third time duration, respectively.

11. A biometric sequence code as in claim 9, wherein said first way includes a first orientation of said first body part, said second way includes a second orientation of said second body part relative to said first orientation, and said third way includes a third orientation of said third body part relative to said first orientation, respectively.

12. A biometric sequence code as in claim 9, wherein said first way includes a first spatial position of said first body part, said second way includes a second spatial position of said second body part relative to said first spatial position, and said third way includes a third spatial position of said third body part relative to said first spatial position, respectively.

13. A biometric sequence code as in claim 1, further including a third body feature from said user that is entered at a third time;

said third body feature being substantially similar to said first body feature from said first body part.

14. A biometric sequence code as in claim 1, wherein said first body feature and said second body feature are obtained simultaneously.

15. A biometric sequence code as in claim 14, wherein said first way includes a first spatial position of said first body part and said second way includes a second spatial position of said second body part, relative to said first spatial position thereof, respectively.

16. A biometric sequence code as in claim 15, wherein said first way further includes a first orientation of said first body part and said second way further includes a second orientation of said second body part relative to said first orientation thereof, respectively.

17. A biometric sequence code as in claim 1, wherein said first body part is a finger.

18. A biometric sequence code as in claim 17, wherein said first body feature is a fingerprint.

19. A biometric sequence code as in claim 1, wherein said first body part is an eye.

20. A biometric sequence code as in claim 19, wherein said first body feature is a retinal scan.

21. A biometric sequence code as in claim 18, wherein said second body feature is a retinal scan of an eye.