System and method for multipoint conferencing with scalable video coding servers and multicast
US8502858B2 · kind B2 · utility
2Cited by
9References
25Claims
0Family size
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Key dates
| Filing date | Oct 1, 2007 |
| Grant date | Aug 6, 2013 |
| Priority date | — |
| Expiry date | Mar 18, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/6408
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A multicast scalable video communication server (MSVCS) is disposed in a multi-endpoint video conferencing system having multicast capabilities and in which audiovisual signals are scalably coded. The MVCVS additionally has unicast links to endpoints. The MSVCS caches audiovisual signal data received from endpoints over multicast communication channels, and retransmits the data over either unicast or multicast communication channels to an endpoint that requests the cached data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.