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. 09, 2010
Filed:
May. 08, 2003
Motoji Ohmori, Hirakata, JP;
Toshihisa Nakano, Neyagawa, JP;
Takahiro Nagai, Osaka, JP;
Hideshi Ishihara, Katano, JP;
Makoto Tatebayashi, Takarazuka, JP;
Motoji Ohmori, Hirakata, JP;
Toshihisa Nakano, Neyagawa, JP;
Takahiro Nagai, Osaka, JP;
Hideshi Ishihara, Katano, JP;
Makoto Tatebayashi, Takarazuka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An authentication communication system is capable of storing information relating to revoked devices in less area than is conventionally required. A computer unit stores in advance revocation information that indicates at least one revoked apparatus, and when authenticating a driver unit judges, based on the revocation information, whether or not the driver unit is revoked. The computer unit prohibits communication with the driver unit when the driver unit is judged to be revoked, and communicates with the driver unit when the driver unit is judged not to be revoked.