发明名称 Subband echo location and double-talk detection in communciation systems
摘要 A method of controlling an echo canceller in a communications channel, is disclosed wherein input signals from the communications channel are first subbanded into a subband. Echo locations are then identified within the subband and are used to control the echo canceller. Typically, the echo canceller will be a fullband echo canceller with an adaptive filter, in which case the echo locations are used to control the filter coefficients.
申请公布号 US2004037417(A1) 申请公布日期 2004.02.26
申请号 US20020226048 申请日期 2002.08.23
申请人 SEIBERT MICHAEL 发明人 SEIBERT MICHAEL
分类号 H04B3/23;(IPC1-7):H04M9/08;H04M1/76;H04M7/00 主分类号 H04B3/23
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