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:
Mar. 27, 2012
Filed:
Jul. 28, 2006
Hidehiro Inooka, Tokyo, JP;
Tsutomu Inui, Chiba, JP;
Mariko Kitajima, Tokyo, JP;
Kazuhiro Kanee, Chiba, JP;
Hidehiro Inooka, Tokyo, JP;
Tsutomu Inui, Chiba, JP;
Mariko Kitajima, Tokyo, JP;
Kazuhiro Kanee, Chiba, JP;
Sony Computer Entertainment Inc., Tokyo, JP;
Abstract
Managing the use of an optical disc drive by a program at high security. An OS of a host apparatussends one user certificate incorporating the policy information defining the use contents permissible for the optical disc driveand a user key to the optical disc driveunder a secure environment (S). On the other hand, the program running on the OS is authorized, and the user key is passed to the authorized program (S). The optical disc driveauthorizes the program using the user key within the user certificate and the user key for the program and specifies the policy information corresponding to the user key (S). Thereafter, the optical disc drivepermits the application program to gain access to the self-resource within the limits of the contents defined in the policy information (S).