Patent ID: 7613298

Claim:
A process for distributing digital video sequences in accordance with a nominal stream format comprising a succession of frames, each frame comprising at least one digital block regrouping a plurality of coefficients corresponding to simple, digitally coded visual elements comprising: a step of providing a video stream analysis system, a video scrambling system and first memory each in communication with a server; a step of providing a second memory, a synthesis system and video player each in communication with an addressable client having a digital rights profile; a step of providing a network in communication with the server and addressable client; a step of providing an original digital video stream to the video analysis system to identify the characteristics representative of the data structure, contents and parameters of the original digital video stream; a step of communicating the digital rights of the addressable client and a profile of external events to the server; a step of modifying at least one digital block of the original digital video stream with the video scrambling system, wherein the modifications of the original digital video stream are a function of at least a part of the characteristics representative of the data structure, contents and parameters of the original digital video stream and the digital rights of the addressable client and the profile of external events, by replacing a part of the coefficients of a data block to produce a visually deteriorated modified main video stream in the nominal stream format; a step of producing complementary modification information with the video scrambling system that allows reconstruction of the original video stream with the synthesis system; a step of transmitting the visually deteriorated modified main video stream in the nominal stream format through a first connection, via the network and addressable client, to the second memory; and a step of transmitting the complementary modification information of said at least one modified digital block through a separate second connection, via the network and addressable client, to the synthesis system based upon the digital rights profile; whereby digital video sequences in accordance with a nominal stream format comprising a succession of frames, each frame comprising at least one digital block regrouping a plurality of coefficients corresponding to simple, digitally coded visual elements are distributed.