Process and adaptive and progressive system for the secured...

Interactive video distribution systems – Video distribution system with upstream communication – Server or headend

Reexamination Certificate

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C725S104000, C382S232000

Reexamination Certificate

active

07926083

ABSTRACT:
A process for secured distribution of digital fixed pictures in the form of streams comprising sequences of data each containing a part of information of the picture comprising: modifying the original stream by modifying at least a part of the data sequences to produces a stream modified in the same nominal format as the original stream, transmitting the modified stream, and reconstruction of the modified stream with a decoder in addressee equipment, wherein the reconstruction is adaptive and progressive as a function of information coming from a digital profile of an addressee user.

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Carsten Griwodz et al., “Protecting VoD the Easier Way”, ACM Multimedia '98, Bristol, UK, Sep. 12-16, 1998, pp. 21-28.
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