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AssigneeDigital Video Express, L.P.
InventorsRobert Wilhelm Schumann, Richard Whittemore, David Mosche Goldschlag, David William Kravitz, Siu-Leong Iu, Guillaume Mercier, Michael Bergeron, Jack Ehrhardt, Richard Vitkus
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A content distribution system and method which prevents unauthorized access to secured content such as movies and music. The apparatus includes a source, a receiver, an authorized security device such as a conditional access module (CAM) for decrypting authorized content, an output device for outputting content and a backend for managing accounts and system operations. One aspect of this invention provides a mechanism for providing secured content on a medium such as a DVD optical disc. These devices may verify that there is authorization to play the secured content, add watermarks to the secured content, convert the secured content to a displayable form and provide a means for preventing output of the secured content.
An apparatus for secure distribution of content comprising:
An apparatus for secure distribution of content comprising:
A method of preventing unauthorized access to content data in a system comprising a source, a conditional access module, a receiver and an output device, the method comprising:
A method of preventing unauthorized access to content data in a system comprising a source, a conditional access module, a receiver and an output device, the method comprising:
Dependencies are inferred from the claim text.