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. 18, 2010
Filed:
Apr. 23, 2004
Takehiro Ohkoshi, Tokyo, JP;
Keiki Yamada, Tokyo, JP;
Satoru Makita, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
An authenticating deviceincludes an authentication processing unitto perform an authentication process with a communication deviceusing an authentication key, an update key generating unitto generate a new authentication key when the communication devicedoes not hold an authentication key to be used in the authentication process by the authentication processing unit, and to generate a new authentication key for updating the authentication key when the communication deviceholds the authentication key but the authentication process with the communication deviceby the authentication processing unitfails. The authentication processing unitperforms again the authentication process with the communication deviceusing the new authentication key generated by the update key generating unit