Personal authentication system using biometrics information

• US 7,974,448 B2
• Filed: 01/23/2006
• Issued: 07/05/2011
• Est. Priority Date: 09/14/1999
• Status: Expired due to Fees

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Shinzaki, Takashi, Fujii, Yusaku
• Primary Examiner(s): Bella; Matthew C
• Assistant Examiner(s): MACKOWEY, ANTHONY M
• Application Number:
  US11/336,927
• Publication Number:
  US 20060120577A1
• Time in Patent Office: 1,989 Days
• Field of Search: 382115-127, 382/277, 382/278, 382/286, 382/294, 382/298, 382/99, 382/300, 382/305, 382168-172, 382217-223, 382/237, 382270-274, 283/68, 283/69, 348/77, 348/231.3, 348/231.6, 348/254, 396/15, 356/71
• US Class Current: 382/124
• CPC Class Codes: G06F 21/32 using biometric data, e.g. fingerprints, iris scans or voiceprints
• CPC Class Codes: G06V 40/12 Fingerprints or palmprints
• CPC Class Codes: G06V 40/28 Recognition of hand or arm movements, e.g. recognition of deaf sign language static hand signs G06V40/113
• CPC Class Codes: G07C 9/37 using biometric data, e.g. fingerprints, iris scans or voice recognition

Abstract

A personal authentication system using biometrics information, which identifies or authenticates an individual by verifying to-be-verified biometrics characteristic data against previously registered biometrics characteristic data. The system includes a biometrics information inputting section having a function to acquire the to-be-verified biometrics information; a biometrics information converting section converting said to-be-verified biometrics information, acquired through said biometrics information inputting section, into a state to be acquired on a predetermined acquisition condition, said predetermined acquisition condition being a same condition under which the registered biometric information was acquired; and a biometrics characteristic data extracting section extracting to-be-verified biometrics characteristics data from the to-be-verified biometrics information obtained by the conversion in said biometrics information converting section.

Claims

1. A personal authentication system using biometrics information, which identifies or authenticates an individual using biometrics information by verifying to-be-verified biometrics characteristic data obtained from to-be-verified biometrics information acquired at the time of the identification or authentication against previously registered biometrics characteristic data previously extracted from to-be-registered biometrics information acquired at a time of user registration, comprising:

a biometrics information inputting section having a function to acquire the to-be-verified biometrics information;

a biometrics characteristic data extracting section for extracting to-be-verified biometrics characteristic data from the to-be-verified biometrics information acquired through said biometrics information inputting section;

an acquisition condition attaching section for attaching, to said to-be-verified biometrics information to be inputted from said biometrics information inputting section to said biometrics characteristic data extracting section, an acquisition condition related to a specification of said biometrics data inputting section, which has acquired said to-be-verified biometrics information; and

a biometrics information converting section for converting, before the extraction of said to-be-verified biometrics characteristic data from said to-be-verified biometrics information in said biometrics characteristic data extracting section when a specification of the biometrics information inputting section is changed due to version-up of the personal authentication system after registering of the registered biometrics characteristics data, said to-be-verified biometrics information into a state to be acquired on a predetermined acquisition condition related to a specification of another biometrics data inputting section, which previously acquired the registered biometrics information, in accordance with said acquisition condition attached to said to-be-verified biometrics information,

wherein before the converting by the converting section, the biometrics information inputting section acquires the to-be-verified biometrics information in a state according to another predetermined acquisition condition that is different than the predetermined acquisition condition under which the registered biometrics information was previously acquired, and where after being converted the state of the acquired to-be-verified biometrics information is a same state as the previously registered biometrics characteristics data,

wherein said biometrics information inputting section is of a type acquiring fingerprint information as said to-be-verified biometrics information in the form of image data, and said acquisition condition attaching section attaches, to said fingerprint information as said acquisition condition, a relationship in brightness between ridge lines and trough lines in said fingerprint information, and said biometrics information converting section converts said fingerprint information into image data with a predetermined brightness relationship, on the basis of said brightness relationship attached to said fingerprint information.