发明名称 NOISE CONTROL DEVICE
摘要 <p>An apparatus for noisy cancellation of ambient noise impinging upon the front surface of a pressure differential microphone. The apparatus utilizes curved reflectors (24, 25) to cause ambient noise which impinges on the front surface of the microphone to also impinge on the back surface of the microphone. In addition, the curved reflectors deflect (68) a speaker's voice which is directed toward the front surface of the microphone to be deflected away from the back surface of the microphone.</p>
申请公布号 CA2266465(C) 申请公布日期 2004.12.07
申请号 CA19982266465 申请日期 1998.01.12
申请人 UMEVOICE, INC. 发明人 WOLFF, STEVEN B.;TATE, JOSEPH B.
分类号 H04R1/38;H04M1/03;H04M1/19;H04R1/04;H04R1/08;H04R1/34;(IPC1-7):H04R1/08 主分类号 H04R1/38
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