Loading patent…
AssigneesSony Corporation, Sony Electronics Inc.
InventorsRobert Allan Unger, Brant L. Candelore, Leo M. Pedlow, Jr.
Estimating the term…
An encryption arrangement for multiple encryption of television programs. A system according to embodiments of the present invention multiple encrypts only a portion of the data required for full presentation of a television program to permit coexistence of multiple conditional access encryption systems associated with multiple manufacturer's set-top boxes within a single system. By only encrypting a portion of the program, dramatically less bandwidth is consumed than the alternative of multiple encryption of all program data, thus permitting a larger number of programs to be carried over the same bandwidth while permitting coexistence of multiple conditional access systems in a single cable television system.
A method of decoding partially encrypted digital video content, comprising:
A method of decoding a partially encrypted digital television signal, comprising:
A method of decrypting a partially multiple encrypted digital television program, comprising:
A digital television receiver device, comprising:
A digital audio visual content player, comprising:
A circuit that processes a stream of packetized audio visual data, comprising:
A circuit that processes an input stream of audio visual data packets, comprising:
A method of processing packets of audio visual data, comprising:
A method of processing packets of audio visual data, comprising:
A circuit that processes a stream of digital video data packets, comprising:
Dependencies are inferred from the claim text.