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. 14, 2006
Filed:
Jun. 15, 2000
Tooru Kamibayashi, Chigasaki, JP;
Hisashi Yamada, Yokohama, JP;
Hiroshi Iwasaki, Yokohama, JP;
Masafumi Tamura, Chofu, JP;
Yasuhiro Ishibashi, Ome, JP;
Taku Kato, Kamakura, JP;
Makoto Tatebayashi, Takarazuka, JP;
Shunji Harada, Osaka, JP;
Noboru Katsuta, Itami, JP;
Tooru Kamibayashi, Chigasaki, JP;
Hisashi Yamada, Yokohama, JP;
Hiroshi Iwasaki, Yokohama, JP;
Masafumi Tamura, Chofu, JP;
Yasuhiro Ishibashi, Ome, JP;
Taku Kato, Kamakura, JP;
Makoto Tatebayashi, Takarazuka, JP;
Shunji Harada, Osaka, JP;
Noboru Katsuta, Itami, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A revocation list is registered a public ROM area. The revocation list designates at least one electronic device in which use of the storage medium by the designated electronic device is to be revoked. A controller receives from the electronic device which attempts to access, identification information indicative of the electronic device, and checks whether identification information corresponding to the received identification information is contained in the revocation list, thereby determining whether or not use of the storage medium by the electronic device which attempts to access should be revoked.