Audio and video data processing device for multimedia communication via a local network set up within an asynchronous network

摘要

A device is dedicated to the processing of audio and video data for multimedia communication, via an asynchronous network, between first LAN audio and video terminals and second LAN audio and video terminals. This device includes i) a connector which establishes communications with the first LAN audio and video terminals and with other connectors installed in another device, ii) a first dating module which attaches a transmit time mark and an identifier to the audio and video data emitted by the first LAN audio and video terminals, before their transmission to the other connector and iii) a processor which determines a time difference representing the transmission time difference between the received audio and video data and presenting the same identifier.