Systems and methods for echo management in conferencing over a network using multiplexed multicast

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United States of America

PATENT NO 11201968
APP PUB NO 20200336598A1
SERIAL NO

16390927

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Abstract

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A system includes participant nodes that unicast a voice stream to a master node and receive a multicast voice stream from the master node. The multicast voice stream may be a mixed voice stream mixing the voice streams of the participants. In this case, each participant performs echo cancellation on the multicast voice stream. Alternatively, the multicast voice stream may be a multiplexed voice stream multiplexing the voice streams of all participants. In this case, each participant de-multiplexes the multicast voice stream and generates a mixed voice stream that does not include that participant. Alternatively, the multicast voice stream received by each participant may be a multiplexed digital voice stream multiplexing multiple mixed streams including one mixed stream that does not include the voice stream of that participant. In this case, each participant de-multiplexes the multicast voice stream to obtain the mixed stream that does not include that participant.

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Patent Owner(s)

Patent OwnerAddress
TYCO FIRE & SECURITY GMBHSCHAFFHAUSEN SWITZERLAND KANTON SCHAFFHAUSEN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lévesque-Landry, Kevin Montreal, CA 3 3
Newin, Douglas Pointe Claire, CA 3 3
Vermette, Simon Sainte-Julie, CA 3 3

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