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:
Jan. 19, 2010
Filed:
Jul. 24, 2003
Yoshihiro Hori, Gifu, JP;
Kenichiro Tada, Tokorozawa, JP;
Tatsuya Hirai, Kawasaki, JP;
Masafumi Tsuru, Tokyo, JP;
Takayuki Hasebe, Kawasaki, JP;
Yoshihiro Hori, Gifu, JP;
Kenichiro Tada, Tokorozawa, JP;
Tatsuya Hirai, Kawasaki, JP;
Masafumi Tsuru, Tokyo, JP;
Takayuki Hasebe, Kawasaki, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Pioneer Corporation, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Phoenix Technologies K.K., Tokyo, JP;
Fujitsu Limited, Kanagawa, JP;
Abstract
A data storage device includes a secure data storage portion including a log memory. The log memory is formed of a plurality of banks, and stores history information in the plurality of banks in a ring-like fashion. The plurality of banks are designated by addresses (0−(N−1)), respectively. Each of the items of the history information respectively stored in the banks includes a management number region, a license ID (LID) region, a Ksregion, an STregion, an STregion, a KPcmy region and a LBA region.