Patent ID: 9118805
Filing Date: 2015-08-25
Classification: G10L,H04M,H04N

Abstract:
1. A multipoint control unit for controlling signal exchange between a plurality of terminal, comprising: a first signal receiving unit configured to receive a first signal including sound and noise, said sound and said noise are not separated, and first analysis information indicative of a relation between said sound and said noise included in said first signal, from a first terminal, said first analysis information is generated based on said first signal by said first terminal; a second signal receiving unit configured to receive a second signal including sound and noise, said sound and said noise are not separated, and second analysis information indicative of a relation between said sound and said noise being included in said second signal, from second terminal, said second analysis information is generated based on said second signal by said second terminal; a signal mixing unit configured to mix said first signal and said second signal according to weights of said first signal and said second signal, said weights are generated by comparing a sound level of said first signal and a sound level of said second signal, such that the sound level is increased for the signal, among the first and the second signals, with a higher sound level; an analysis information mixing unit configured to mix said first analysis information and said second analysis information according to said weights of said first signal and said second signal; and transmitter configured to transmit said mixed signal and said analysis information to a third terminal, said third terminal generates an output signal by controlling said mixed signal based upon said analysis information.