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:
Jul. 03, 2012
Filed:
Oct. 30, 2009
Takeshi Inoue, Kawasaki, JP;
Shoko Hatanaka, Tokyo, JP;
Makoto Aikawa, Sagamihara, JP;
Hideyuki Takeda, Funabashi, JP;
Takeshi Inoue, Kawasaki, JP;
Shoko Hatanaka, Tokyo, JP;
Makoto Aikawa, Sagamihara, JP;
Hideyuki Takeda, Funabashi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A biometric authentication systemincludes an IC cardincluding a reading unitsending generation information back to a terminal and a writing unitwriting biometric information in a storage area indicated in a write instruction, and a terminalincluding a card generation acquisition unitreceiving from the IC card the generation information, a device generation acquisition unitreceiving from a biometric authentication device the generation information, a biometric information acquisition unitreceiving biometric information from the biometric authentication device, a first write instruction unitidentifying a storage area of the same generation as the generation of the biometric authentication device and transmitting a write instruction of the biometric information to the IC card, and a second write instruction unittransmitting a write instruction for a storage area of the oldest generation to the IC card.