Virtual distributed multipoint control unit
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United States of America Patent
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Jun 4, 2013
Grant Date -
Sep 9, 2010
app pub date -
Feb 25, 2010
filing date -
Mar 4, 2009
priority date (Note) -
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Abstract
A virtual distributed multipoint control unit in a videoconference may be implemented using a master endpoint, one or more facilitator endpoints, and one or more leaf endpoints. The facilitator endpoint(s) may receive video and/or audio from the leaf endpoints (which may provide/receive videoconference audio and video to one or more local participants). The master endpoint may receive video and/or audio from one or more facilitator endpoints (which may include cumulative video stream from multiple leaf endpoints) and/or directly from one or more leaf endpoints. The master endpoint may arrange received video and/or audio and provide cumulative video and/or audio streams to the leaf endpoints (e.g., directly and/or through the facilitator endpoints). The virtual distributed multipoint control unit may support a conference with more leaf endpoints than the master endpoint has input ports and/or decoders.
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