Secure device for the broadcasting, recording and viewing on demand of audiovisual works in a format of the MPEG-2 TS type
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United States of America Patent
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Sep 21, 2010
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N/A
app pub date -
Feb 5, 2004
filing date -
Feb 7, 2003
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Abstract
A process for distributing audiovisual sequences in accordance with a nominal stream format respecting a MPEG-2 TS norm including a succession of TS packets, including analyzing the stream made prior to transmitting to client equipment to generate a first stream in conformity with the MPEG-2 TS format, modifying all or part of the TS packets by substituting packets of the same structure, but whose content was modified, and generating a second stream of a format including digital information suitable for permitting reconstruction of the nominal stream, separately transmitting the two streams from a servers to the equipment, and a calculation is made on the equipment of a synthesis of a stream in nominal format as a function of the first stream and the second stream.
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