Multi-point videoconference system having a fixed control statio

Details Multi-point videoconference system having a fixed control statio Multi-point videoconference system having a fixed control statio

1997-10-10

1998-10-13

Chan, Wing F.

Television

Two-way video and voice communication

User positioning

348 16, 370260, 370265, 379 9321, H04M 1100, H04N 715

Patent

active

058219854

ABSTRACT:
A plurality of local stations each respectively have terminal equipment for coding in a compressing manner and multiplexing audio data, video data and cnotrol data of the local station to obtain a first multiplex data, and demultiplexing and decoding in a decompressing manner a second multiplex data input thereto from a control station connected by a communication line to the local station. The control station has a multi-point videoconference controller for responding to the control data in the first multiplex data from any local station to process the first multiplex data from a selected station, to generate the second multiplex data to be transmitted to each of other local stations than the selected station. The second multiplex data to the other local stations includes the audio data and the video data in the first multiplex data from the selected station.

REFERENCES:
patent: 5003532 (1991-03-01), Ashida et al.
patent: 5446491 (1995-08-01), Shibata et al.
patent: 5473363 (1995-12-01), Ng et al.

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