Data processing: financial – business practice – management – or co – Business processing using cryptography – Usage protection of distributed data files
Reexamination Certificate
2005-10-26
2010-06-29
Fischer, Andrew J. (Department: 3621)
Data processing: financial, business practice, management, or co
Business processing using cryptography
Usage protection of distributed data files
C705S054000, C726S026000
Reexamination Certificate
active
07747533
ABSTRACT:
A plurality of digital licenses correspond to a piece of content, including a base license and at least one add-on license. Each add-on license includes a reference to the base license, and each of the base license and each add-on license sets forth rules specifying how the content may be employed. Each add-on license is identified by way of the reference therein to the base license, and the rules in the base license and in each identified add-on license are aggregated into an aggregated set of rules that is evaluated to determine if such aggregated set of rules allows employing the content in a particular manner.
REFERENCES:
patent: 5287408 (1994-02-01), Samson
patent: 6636858 (2003-10-01), Coffey et al.
patent: 6775655 (2004-08-01), Peinado et al.
patent: 6810389 (2004-10-01), Meyer
patent: 2002/0019814 (2002-02-01), Ganesan
patent: 2002/0198846 (2002-12-01), Lao
patent: 2003/0097655 (2003-05-01), Novak
patent: 2003/0204723 (2003-10-01), Narin et al.
patent: 2004/0039916 (2004-02-01), Aldis et al.
patent: 2005/0044016 (2005-02-01), Irwin et al.
patent: 2005/0138357 (2005-06-01), Swenson et al.
Eizenhoefer Richard S.
Hsu Wen-Pin Scott
Zhang Ning
Fischer Andrew J.
Microsoft Corporation
Woodcock & Washburn LLP
Zelaskiewicz Chrystina
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