Patent ID: 8411704
Filing Date: 2013-04-02
Classification: H04H,H04N

Abstract:
1. A method of generating a data stream, referred to as a contribution stream, comprising a multiplex of services, the method being executed by a concentrator and comprising: a step of generating by the concentrator a transport stream consisting of transport packets constructed from sections of the multiplex, said transport stream not being formed in bursts; a step of constructing by the concentrator megaframes within the transport stream, referred to as contribution megaframes, by inserting special so-called synchronisation transport packets for a contribution multiplex comprising a pointer to the first packet of the following contribution megaframe and a time stamp, called MCTS, relating to the moment of sending of the start of the following contribution megaframe; a step of generating by the concentrator a periodic signal called an IPE synchronisation signal, the period corresponding to the time of sending of an integer number of transport packets; a step of generating by the concentrator a periodic signal called the megaframe synchronisation signal; a step of inserting by the concentrator, in the synchronisation packets of the contribution multiplex, a second time stamp called ITS relating to the IPE synchronisation signal; and a step of inserting, by the concentrator in the synchronisation packets of the contribution multiplex, a third time stamp called MTS relating to the megaframe synchronisation signal.