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, 2004
Filed:
Aug. 10, 1999
Yoshiaki Uchida, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A storage device is provided for gaining access to a storage medium and for reading data from or writing data to the storage medium. The storage medium has a plurality of access control areas for storing access control areas for storing access control information. The storage device also has an update process unit for performing a current update process and includes new access control information written in to a selected first access control area of the plurality access control areas. The first access control area differs from a second access control area of the plurality of the access control areas. In addition, the storage device also has an access control unit for controlling access to the storage medium depending on correspondence between entered access control information and the new access control information written in the access control area.