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:
Sep. 19, 2017
Filed:
Nov. 29, 2012
Sony Corporation, Minato-ku, JP;
SONY CORPORATION, Tokyo, JP;
Abstract
There is provided a device and a method for preventing using of illegitimate content or manufacturing of the illegitimate media that uses illegitimate media. In a system that has an information storage device, a license management apparatus that generates a media key set (MKS) that is stored in the information storage device, and a content provision apparatus, at the time of manufacturing of the information storage device, the license management apparatus compares an MKS version that is set in the MKS that is stored in the information storage device, and an allowance minimum MKS version that is recorded in a controller of the information storage device, and thus records key information stored in the MKS, in a storage unit under the condition that it is confirmed that the MKS version is equal to or greater in value than the allowance minimum MKS version.