Patent ID: 8068420

Claim:
A device for temporal slaving in a packet data transmission network, the device receiving data packets, wherein each incoming data packet comprises a time label, the device comprising: a local reception clock; a means of temporary storage for receiving said packets from said network, said storage having a storage capacity for recording data received for a predetermined time, said storage capacity dependent on characteristics of the network, a means for regenerating the local reception clock as a function of the time labels of the incoming packets, a means for reading the data in the means of temporary storage at an instant dependent on said predetermined time and on the regenerated local reception clock; wherein the means for regenerating the local reception clock comprises a differentiator for calculating a difference between the time labels and the regenerated local reception clock, a means for accumulating said differences between the time labels of the incoming data packets and the local reception clock during a period of time and a decision means for comparing said accumulated differences and the local clock and modifying the regenerated local reception clock according to said comparison.