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:
May. 03, 2011
Filed:
Mar. 27, 2007
Kenta Takahashi, Kawasaki, JP;
Shinji Hirata, Machida, JP;
Hideitsu Hino, Kawasaki, JP;
Masahiro Mimura, Kawasaki, JP;
Kenta Takahashi, Kawasaki, JP;
Shinji Hirata, Machida, JP;
Hideitsu Hino, Kawasaki, JP;
Masahiro Mimura, Kawasaki, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A personal authentication method is provided for authenticating a user by cross-relation between an enrolled image and a verification image of biometric information of the user. Upon registration of the biometric information, the method generates a filter for scrambling the image and an inverse filter thereof, and applies the filter to the enrolled image generated from the biometric information to generate a registration template which is then stored to a memory. Upon authentication of the user, the method applies the inverse filter to the verification image generated from the biometric information collected from the user, and then verifies the identity of the user based on cross-relation between the verification image after application of the inverse filter and the registration template.