发明名称 |
SIGNAL AMPLIFICATION SYSTEM WITH AUTOMATIC EQUALIZSIGNAL AMPLIFICATION SYSTEM WITH AUTOMATIC EQUALIZER ER |
摘要 |
A signal amplification system wherein a signal coming from a microphone is applied to a loudspeaker via a signal processing system. The signal processing system includes an estimator for estimating the transfer function from the loudspeaker to the microphone. The equalizer is set to a transfer function that is reciprocal to the transfer function from the loudspeaker to the microphone to equalize the transfer function from the microphone to the listeners. The estimator may include an adaptive filter which has a transfer function that approaches the transfer function from the loudspeaker to the microphone. |
申请公布号 |
WO9632776(A3) |
申请公布日期 |
1997.01.09 |
申请号 |
WO1996IB00241 |
申请日期 |
1996.03.18 |
申请人 |
PHILIPS ELECTRONICS N.V.;PHILIPS NORDEN AB |
发明人 |
JANSE, CORNELIS, PIETER;TIMMERMANS, PATRICK, ADRIANUS, ANITA |
分类号 |
H04R3/04;H03G5/16;H03G5/22;H03H21/00;H04R1/00 |
主分类号 |
H04R3/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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