The detection and cancellation of echo in a communications system is enhanced by taking advantage of the accumulated knowledge relating to the echo path delay that an adaptive filter acquires as a result of its adaptation process. Such knowledge improves significantly the ability of an associated Near-End-Speech (NES) detector to detect for the presence of near end speech.
申请公布号
CA2204059(A1)
申请公布日期
1997.12.28
申请号
CA19972204059
申请日期
1997.04.30
申请人
MIKI, TOSHIO;KAWAHARA, TOSHIRO;LUCENT TECHNOLOGIES INC.
发明人
KIM, CHENG;MIKI, TOSHIO;KAWAHARA, TOSHIRO;DUTTWEILER, DONALD LARS