Data processing: financial – business practice – management – or co – Business processing using cryptography – Usage protection of distributed data files
Reexamination Certificate
2007-08-17
2010-06-08
Fischer, Andrew J. (Department: 3621)
Data processing: financial, business practice, management, or co
Business processing using cryptography
Usage protection of distributed data files
Reexamination Certificate
active
07734551
ABSTRACT:
Use of rights-managed content is enabled by a digital license that includes the identity of the licensee. The licensee redistributes the content by sending a package containing the content and the license to another party. That other party obtains a license to use the content by contacting a license server, and preferably pays a fee for this license. During the contact with the license server, the licensee's identifying information is uploaded to the license server, which allows the license server to determine who distributed the content to the other party. The license server can use this information to reward the original licensee for having redistributed the content.
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Beezer John
Hanan Scott M.
Lindeman Thomas K.
Coppola Jacob C.
Fischer Andrew J.
Microsoft Corporation
Woodcock & Washburn LLP
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