| 摘要 |
The invention concerns a multi-point videconference system, characterised in that it comprises in particular: a server set (10); pupil stations (12); an outgoing link transmitting from the server set (10) to each of the client stations (12), a multi-point videoconference signal based on an IP Multicast-type protocol, the outgoing link including at least a part along which the transmission is carried out by satellite, the signal being transmitted by a satellite broadcast centre (14) relayed by a satellite (16); a return link transmitting, from each of the pupil stations (12) to the server set (10), a videoconference signal based on a IP Unicast-type protocol. |
