发明名称 |
Digitally Controlled Analog Cancellation System |
摘要 |
A digitally controlled analog cancel- lation system containing an analog noise cancellation circuit with a residual micro- phone (39) with a digital virtual earth con- troller (40) for optimizing variable param- eters employed in the analog cancellation circuit.
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申请公布号 |
CA2170026(A1) |
申请公布日期 |
1995.03.30 |
申请号 |
CA19942170026 |
申请日期 |
1994.09.02 |
申请人 |
NOISE CANCELLATION TECHNOLOGIES, INC. |
发明人 |
DENENBERG, JEFFREY N.;SABETT, RANDY V. |
分类号 |
H04R27/00;H04R3/00;H04R25/00 |
主分类号 |
H04R27/00 |
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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