| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress deterioration in audio quality and a caused by a packet loss of video and audio data resulting from a network load, a variation in packet arrival interval, the retransmission control of packets, an arrival delay, etc., in an environment where a band is not guaranteed. <P>SOLUTION: A video and audio automatic controller 1 sends an instruction to adjust the quality of included video so that audio is not affected by the state change of a network to a video and audio multipoint distribution device 2 and a client state monitoring device 5. The video and audio multipoint distribution device 2, and a video and audio transmitting device 3 and a video and audio receiving device 4 to which the instruction is transferred adjust the quality of the video. <P>COPYRIGHT: (C)2007,JPO&INPIT |
