Patent ID: 7864759

Claim:
A process for distributing video sequences in accordance with a nominal stream in a format including a succession of images or pictures comprising: analyzing the nominal stream, prior to transmission to client equipment and generating a modified main stream, having a format of the nominal stream and images or pictures modified by substitution of selected data by similar data, but random or calculated, and having complementary information of any format including substituted data and digital information suitable to permit reconstruction of a modified nominal stream; transmitting the modified main stream in real or deferred time and the complementary information in real time at substantially a moment of display from a server to the client equipment; synthesizing an available stream in a nominal format on the client equipment which is reconstituted as a function of the modified main stream, the complementary information and a reading of the stream on the client equipment; during reading of the stream, generating a position identifier as a function of characteristics of the stream and; transmitting the position identifier to the server that activates in response sending the complementary information as a function of the position identifier, the position identifier allowing the synchronization of the modified stream with the received complementary information; wherein the format of the nominal stream is in an MPEG-2 TS format and the position identifier includes four variables identifying the program, program clock reference, continuity counter and occurrence index of the continuity counter, which occurrence index of the continuity counter results from a calculation applied to TS packets.