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US 2009/0154698 A1Published application
Video processing system for scrambling video streams with dependent portions and methods for use therewith
AssigneeBroadcom Corporation
InventorsSherman (Xuemin) Chen, Jeyhan Karaoguz, Michael Dove, David Rosmann, Thomas J. Quigley, Stephen E. Gordon
Life of this patent
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Abstract
A video processing system includes a video encoder that encodes a video signal into a contiguous video stream having an independent portion and a dependent portion that requires the independent portion for decoding. A scrambling module scrambles the contiguous video stream to produce a scrambled video stream by scrambling the independent video portion and leaving the dependent portion unscrambled.
Claims18
A video processing system comprising:
- a video encoder that encodes a video signal into a contiguous video stream having an independent portion and a dependent portion that requires the independent portion for decoding;
- and
- a scrambling module, coupled to the video encoder, that scrambles the contiguous video stream to produce a scrambled video stream by scrambling the independent video portion and leaving the dependent portion unscrambled.
A method comprising:
- encoding a video signal into a contiguous video stream having an independent portion and a dependent portion that requires the independent portion for decoding;
- and
- scrambling the contiguous video stream to produce a scrambled video stream by scrambling the independent video portion and leaving the dependent portion unscrambled.
Dependencies are inferred from the claim text.