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:
Aug. 14, 2012
Filed:
Jun. 04, 2008
Kedarnath A. Dubhashi, Redmond, WA (US);
Kenneth S. Reneris, Bellevue, WA (US);
Kedarnath A. Dubhashi, Redmond, WA (US);
Kenneth S. Reneris, Bellevue, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Various embodiments utilize a third party, such as a trusted third-party, to perform DRM operations such as 'move' operations. In at least some embodiments, the trusted third-party is utilized for both 'move' operations as well as local content access such as playback and the like. In at least some embodiments, a third-party maintains a database that includes an association of clients, content, and move version numbers. A client—termed a “source client” maintains at least a move version number locally in a secure fashion. The version number is incremented each time the source client performs a move operation. Both the source client and the third-party increment the version number each time a piece of content is moved. When the client attempts to perform a move operation, it contacts the third-party to ascertain the third-party's move version number. If the move version numbers match and the source client owns the license/content, then, in at least some embodiments, a move operation is permitted.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile