Procédé et dispositif de synchronisation d'un décodeur connecté à un réseau de transmission asynchrone, notamment de type ATM.

摘要

A coder (1) and a decoder (2) have respective first (110) and second (120) buffer memories at nodes in an ATM network (R). The method involves transmitting information to the decoder concerning the state of the first buffer memory to add to that of the second buffer memory. The difference in magnitude and sign between the actual memory use and a predetermined threshold value is calculated to determine whether elimination occurs. Video images are decoded and written into an image memory (280) at a rate determined by a first line base (260), driven by the buffers' condition and read out according to a second time base (270). Read and write pointers whether video samples are added to, or withdrawn from, the memory. USE/ADVANTAGE - For audio or video services, or compressed video images. Ensures line transparency.