SYSTEM AND METHOD FOR A CONFERENCE SERVER ARCHITECTURE FOR LOW DELAY AND DISTRIBUTED CONFERENCING APPLICATIONS
First Claim
1. A multi-endpoint video signal conferencing system for communicating video signals to at least one receiving endpoint over at least one communication channel, wherein the video signals are scalably coded into layers including a base layer and one or more enhancement layers, the conferencing system comprising:
- a scalable video coding server (SVCS) adapted to be linked to the at least one receiving endpoint by the at least one communication channel,wherein the at least one communication channel offers improved quality of service; and
wherein the SVCS is configured to selectively forward a video signal layer to the at least one receiving endpoint over the at least one communication channel.
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Accused Products
Abstract
Systems and methods for conducting a multi-endpoint video signal conference are provided. Conferencing endpoints are linked by pairs of a reliable and a less reliable communication channel. Conference video signals are scaleable coded in base layer and enhancement layers format. Video signal base layers, which correspond to a minimum picture quality, are communicated over reliable channels. The video signal enhancements layers may be communicated over the less reliable channels. A conference server mediates the switching of video layer information from transmitting endpoints to receiving endpoints without any intermediate coding or re-coding operations. The video conference can be integrated with an audio conference using either scalable coded audio signals or non-scaleable coded audio signals.
12 Citations
3 Claims
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1. A multi-endpoint video signal conferencing system for communicating video signals to at least one receiving endpoint over at least one communication channel, wherein the video signals are scalably coded into layers including a base layer and one or more enhancement layers, the conferencing system comprising:
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a scalable video coding server (SVCS) adapted to be linked to the at least one receiving endpoint by the at least one communication channel, wherein the at least one communication channel offers improved quality of service; and wherein the SVCS is configured to selectively forward a video signal layer to the at least one receiving endpoint over the at least one communication channel.
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2. A method for multi-endpoint video signal conferencing over an electronic communications network, the network having communication channels linking the conferencing endpoints, the method comprising:
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obtaining a scalable video coded video signal, wherein the video signal is coded in a layered format including at least a base layer and one or more enhancement layers; selecting at least one layer of the coded video signal; and selectively multiplexing and forwarding video signal layers to the conferencing endpoints over the linking communication channels, thereby providing at least one of continuous presence, personalized layout, rate matching, error localization, and random entry features to the conferencing endpoints. - View Dependent Claims (3)
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Specification