07698570 is referenced by 26 patents and cites 3 patents.

A content distribution system and method which prevents unauthorized access to secured content such as movies and music. The system includes a source, a receiver, an authorized security device such as a conditional access module (CAM) for decrypting authorized content and an output device for outputting content. The system can also include a backend for managing accounts and system operations. One aspect of this invention is that the content data is derived from the Internet. The system allows for the verification of authorization to play secured content, the addition of watermarks to the secured content, the conversion of the secured content to a displayable form and the means for preventing output of the secured content.

Title
Digital content distribution system and method
Application Number
11/548592
Publication Number
7698570 (B2)
Application Date
October 11, 2006
Publication Date
April 13, 2010
Inventor
Richard Vitkus
Richmond
VA, US
Jack Ehrhardt
Richmond
VA, US
Michael Bergeron
Poway
CA, US
Guillaume Mercier
McLean
VA, US
Siu Leong Iu
San Jose
CA, US
David William Kravitz
Fairfax
VA, US
David Moshe Goldschlag
Silver Spring
MD, US
Richard Whittemore
Herndon
VA, US
Robert Wilhelm Schumann
Oakton
VA, US
Assignee
Dolby Laboratories Licensing Corporation
CA, US
IPC
H04L 9/00
H04L 9/32
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