Patent ID: 8539320

Claim:
Device for synchronising different versions of the same packet digital data stream intended to be broadcast in a broadcasting network on a single frequency, characterised in that it comprises: a plurality of channels, one channel per version of the stream received; each channel comprising: means of detecting errors in the stream which is composed of mega-frames; synchronisation means intended to extract synchronisation information from the stream and to store the data of the stream in a data storage means, the synchronisation information indicating a time difference between the last clock of a reference clock that precedes the start of a current mega-frame; the device also comprising means of generating, from the different versions of the received data stream, a single output stream corresponding to the data stream the different versions of which are received as an input by a single data reading means of at least one memory of one of the channels, the time of reading being synchronised by means of the synchronisation data extracted from which a configurable parameter is subtracted, the single output stream being intended to be broadcasted on the network in the single frequency by a transmitter in a synchronised manner with other transmitters broadcasting the same data stream.