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:
Feb. 20, 2007
Filed:
Sep. 20, 2004
Applicants:
Jun Sato, Kawasaki, JP;
Toru Terauchi, Tokyo, JP;
Inventors:
Jun Sato, Kawasaki, JP;
Toru Terauchi, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 11/30 (2006.01); G06F 12/14 (2006.01); H04L 9/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
A management information generating section generates management information in which the correspondence between content data and rights data is described when a digital DCF container containing encrypted content data and a rights object described in association with a right which decrypt the content data are stored in an external media card. A backup section writes the DCF container, rights object and management information onto the external media card.