Importance

Loading Importance Indicators...

Abstract

In a multi-point video conference control apparatus, a chairman demultiplexer separates video and speech signals from a multiplexed signal from a chairman CODEC. A talker demultiplexer separates video and speech signals from a selected multiplexed signal. A detecting section detects a talk request signal. A first selection instructing section instructs a first selector to select one multiplexed signal on the basis of a detected talk request signal. A second selection instructing section instructs an image selector to select the video signal from the talker demultiplexer upon detection of no talk request signal, and instructs the image selector to select the video signal from the chairman demultiplexer upon detection of no talk request signal. A multi-address calling multiplexer multiplexes the video signal from the image selector and the speech signal from a speech adder. A distribution unit transmits a signal based on the signal from the chairman CODEC to the entrant CODEC as the talk request source and transmits the multiplexed signal from the multi-address calling multiplexer to the remaining entrant CODECs upon detection of a talk request signal, and transmits the multiplexed signal from the multi-address calling multiplexer to all the entrant CODECs upon detection of no talk request signal.

Loading the Abstract Image...

First Claim