Process and device for securing the transmission, recording and viewing of digital audiovisual packetized streams
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United States of America Patent
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Sep 18, 2012
Grant Date -
Jan 21, 2010
app pub date -
Sep 24, 2009
filing date -
May 2, 2003
priority date (Note) -
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Abstract
A process for secure distribution of original digital audiovisual streams including audio, video components or other data, including packetizing the original stream into packets that can be manipulated and have a flexible size, wherein each packet includes a header containing information about the packet and a useful load including part of the data of the stream, analyzing the packetized stream prior to transmission to client equipment to generate a main stream in conformity with a packetized format of the original stream, modified in that all or part of the packets were substituted by packets of the same structure, but whose content was modified, and generating complementary information with any format suitable to permit reconstruction of the original stream, and separately transmitting the modified main stream and complementary information generated from the server to addressed equipment.
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