07103574 is referenced by 256 patents and cites 79 patents.

An enforcement architecture and method for implementing digital rights management are disclosed. Digital content is distributed from a content server to a computing device of a user and received, and an attempt is made to render the digital content by way of a rendering application. The rendering application invokes a Digital Rights Management (DRM) system, and such DRM system determines whether a right to render the digital content in the manner sought exists based on any digital license stored in the computing device and corresponding to the digital content. If the right does not exist, a digital license that provides such right and that corresponds to the digital content is requested from a license server, and the license server issues the digital license to the DRM system. The computing device receives the issued digital license and stores the received digital license thereon.

Title
Enforcement architecture and method for digital rights management
Application Number
9/290363
Publication Number
7103574 (B1)
Application Date
April 12, 1999
Publication Date
September 5, 2006
Inventor
Hai Ying
Bellevue
WA, US
Mariusz H Jakubowski
Bellevue
WA, US
Paul England
Bellevue
WA, US
Ramaranthnam Venkatesan
Redmond
WA, US
Jeffrey R C Bell
Seattle
WA, US
John L Manferdelli
Redmond
WA, US
Thomas C Jones
Redmond
WA, US
Arnold N Blinn
Bellevue
WA, US
Rajasekhar Abburi
Medina
WA, US
Marcus Peinado
Bellevue
WA, US
Agent
Woodcock Washburn
Assignee
Microsoft Corporation
WA, US
IPC
H04L 9/00
G06F 17/60
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