发明名称 Loudspeaker noise cancellation system for head sets removes echos in long delay links
摘要 A loudspeaker noise cancellation system has a stereo sampling unit and computer to calculate the speaker to microphone transfer function (H(f,T)) by a transform and folding operation and a filter (12) to generate an interference free microphone signal y(t) from the noisy signal (x(t)).
申请公布号 DE10043064(A1) 申请公布日期 2002.03.21
申请号 DE20001043064 申请日期 2000.09.01
申请人 CORTOLOGIC AG 发明人 RUWISCH, DIETMAR DR.
分类号 H04R3/00;H04M9/08;(IPC1-7):H04M1/58;H03H21/00;G10L21/02 主分类号 H04R3/00
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