The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 22, 2011
Filed:
Jun. 18, 2007
Masao Hagino, Kanagawa-ken, JP;
Hiroaki Kashima, Kanagawa-ken, JP;
Shigeki Takeuchi, Kanagawa-ken, JP;
Daisuke Tomoda, Kanagawa-ken, JP;
Masao Hagino, Kanagawa-ken, JP;
Hiroaki Kashima, Kanagawa-ken, JP;
Shigeki Takeuchi, Kanagawa-ken, JP;
Daisuke Tomoda, Kanagawa-ken, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
The present invention discourages effective illegal use of compromised biometric information in biometric authentication and allows biometric authentication to be securely continued even when some biometric information is compromised. A user authentication system compares extracted user features with a previously registered combination of features and authenticates the user on the basis of the result of the comparison. If the authentication is successful, the previously registered combination is replaced with a new combination of features that are registered for use in the subsequent authentication of the authentication object.