Invention Grant
- Patent Title: Virtual distributed multipoint control unit
- Patent Title (中): 虚拟分布式多点控制单元
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Application No.: US12712947Application Date: 2010-02-25
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Publication No.: US08456510B2Publication Date: 2013-06-04
- Inventor: Keith C. King , Ashish Goyal , Hrishikesh Gopal Kulkarni
- Applicant: Keith C. King , Ashish Goyal , Hrishikesh Gopal Kulkarni
- Applicant Address: US TX Austin
- Assignee: LifeSize Communications, Inc.
- Current Assignee: LifeSize Communications, Inc.
- Current Assignee Address: US TX Austin
- Agency: Meyertons Hood Kivlin Kowert & Goetzel, P.C.
- Agent Jeffrey C. Hood; Joel L. Stevens
- Main IPC: H04N7/14
- IPC: H04N7/14

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.
Public/Granted literature
- US20100225736A1 Virtual Distributed Multipoint Control Unit Public/Granted day:2010-09-09
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