Patent ID: 8170012

Claim:
A device operative to send packets in a packet communication network comprising at least two stations, said device comprising: means for extracting image pips on the basis of a synchronization signal; means for initializing a first counter on the basis of the said image pips; means for initializing a second counter on the basis of the first counter, the second counter being regulated by a clock produced by the first counter; means for sampling the second counter every period T smp , where T smp emanates from a time base synchronized on all the stations connected over said network; means for sending packets containing the samples of the second counter in the network; means for receiving a local sample value from one of the stations in the network in response to at least one of the samples of the second counter sent in the network; means for determining a phase deviation value Δφ in response to the received local sample value; and means for inserting the determined phase deviation value Δφ into one or more packets and sending said one or more packets in the network.