System and process for adaptive and progressive scrambling...

Details System and process for adaptive and progressive scrambling... System and process for adaptive and progressive scrambling...

2005-03-28

2009-11-03

Chai, Longbit (Department: 2431)

Cryptography

Video cryptography

Copy protection or prevention

C380S033000, C380S034000, C380S035000, C380S036000, C380S037000, C713S151000, C713S152000, C382S100000

Reexamination Certificate

active

07613298

ABSTRACT:
A process for distributing digital video sequences in accordance with a nominal stream format including a succession of frames, each frame including at least one digital block regrouping a plurality of coefficients corresponding to simple, digitally coded visual elements is disclosed.

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