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. 12, 2013
Filed:
Apr. 27, 2007
Seiichi Adachi, Kanagawa, JP;
Yoji Kawamoto, Tokyo, JP;
Motomasa Futagami, Kanagawa, JP;
Atsushi Nakamura, Tokyo, JP;
Mitsuhiro Nakamura, Tokyo, JP;
Seiichi Adachi, Kanagawa, JP;
Yoji Kawamoto, Tokyo, JP;
Motomasa Futagami, Kanagawa, JP;
Atsushi Nakamura, Tokyo, JP;
Mitsuhiro Nakamura, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A management apparatus includes a registering unit configured to issue a first key corresponding to a first service in response to a request for registration with the first service from a first information processing apparatus; a storage unit configured to store an apparatus ID of the first information processing apparatus, the first key, and a second key corresponding to a second service while associating the apparatus ID, the first key, and the second key with each other; and a composite license issuing unit configured to issue a composite license including a first license and a second license, the first license including first encrypted data, which is a content key that is used to decrypt the encrypted content and that is encrypted with the first key, and the second license including second encrypted data, which is the content key that is encrypted with the second key.