secured device for diffusion, the recording and displaying at the request of the audiovisual works in the format of the mpeg type - 2ts

摘要

The method involves modifying a part or all of succession of packets that have been substituted by packets of same structure but whose contents have been modified. A nominal flow having digital information apt to allow the reconstruction of the nominal flow is separately transmitted. A synthesis of flow is calculated at the nominal format according to two flows generated from a server towards a recipient equipment. Independent claims are also included for the following: (a) An equipment for the production of a video bit stream for the implementation of audiovisual sequence distribution method (b) an equipment for the operation of a video bit stream (c) a system for the transmission of a video bit stream.