Patent ID: 8363651

Claim:
Transmission device able to transmit packets in a packet-switching network connecting at least two devices, said network introducing jitter to the transmitted packets resulting in fluctuations in the length of transmission time for the packets, said device comprising: means for initializing an image counter from said image ticks, means for initializing a counter at every “m” passage through zero of the image counter, m being a positive integer different from zero, the counter being timed by a clock produced by the image counter and producing counting ramps having a range of m, means for sampling the counting ramps at every Tech period, where Tech is from a time base synchronized on the at least two devices connected over said network, and means for transmitting packets over the network, said packet comprising a sample of the counting ramp, wherein it also comprises means for inserting in the transmitted packet comprising the sample: an index identifying the counting ramp from which the sample is realized, and—a time label indicating a timestamp for a passage of counting ramp through a reference value, where the reference value is comprised between 0 and m-1, said index and time label being used in synchronizing devices connected by the network.