Method, hub system and terminal equipment for videoconferencing

Details Method, hub system and terminal equipment for videoconferencing Method, hub system and terminal equipment for videoconferencing

2007-02-20

2007-02-20

Ramakrishnaiah, Melur (Department: 2614)

Television

Two-way video and voice communication

Conferencing

C348S014010, C348S014020

Reexamination Certificate

active

11016429

ABSTRACT:
The invention relates to method for videoconferencing, where videoconferencing signals are received as inputs of each including video- and audio streams in a plurality of downlink ports presenting participants' images and their speaking, where one participant is a speaker in turn; videoconferencing signal as an output is transmitted in an uplink port the signal including a video stream with a frame and an audio stream; participant's speaking is detected using a voice activity detection (VAD) for each communication channel; the video streams of the participants are combined into the frame according to the VAD.

REFERENCES:
patent: 5764901 (1998-06-01), Skarbo et al.
patent: 5953050 (1999-09-01), Kamata et al.
patent: 6922718 (2005-07-01), Chang
patent: 2002/0093531 (2002-07-01), Barile
patent: 1178683 (2002-02-01), None
patent: 1178683 (2002-02-01), None
patent: WO-98/23075 (1998-05-01), None
patent: WO-98/23075 (1998-05-01), None

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