Patent ID: 8369362

Claim:
Audio and video data processing device for multimedia communication, via an asynchronous network with random transmission times, between a first pair consisting of a first audio communication terminal and a first video communication terminal, a second pair consisting of a second audio communication terminal and a second video communication terminal , the said terminals being of the LAN type, where at least the first pair consists of independent and asynchronous terminals, and the processing device includes, in association with this first pair, a first connector which sets up of: a video link between the first connector and the video terminal of the first pair, an audio link between the first connector and the audio terminal of the first pair, a video link between the first connector and the second pair, and an audio link between the first connector and the second pair, wherein the first connector synchronizes audio and video data according to a delay, wherein the video packets are transmitted without delay, and the audio packets are delayed for a predetermined time period, wherein the first connector attaches a first transmit time mark and at least one of a first stream identifier and a first virtual local area network (VLAN) identifier to audio and video data coming from the first audio communication terminal and the first video communication terminal respectively before their transmission to the second pair via a local network and attaches a receive time mark to the audio and video data coming from the second pair and containing at least one of a second stream identifier and a second VLAN identifier and a second transmit time mark, and wherein the predetermined time period is a transmission time difference between the audio data and the video data.