发明名称 |
Background noise reduction system |
摘要 |
A noise reduction system includes a microphone configured to detect an acoustic signal. A first digitizer converts an output of the microphone into a discrete output signal. An acoustic sensor detects structure-borne noise, and a second digitizer converts an output of the acoustic sensor into a discrete acoustic noise reference signal. A noise compensation circuit processes the discrete output signal based on the discrete acoustic noise reference signal.
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申请公布号 |
US7930175(B2) |
申请公布日期 |
2011.04.19 |
申请号 |
US20070767803 |
申请日期 |
2007.06.25 |
申请人 |
NUANCE COMMUNICATIONS, INC. |
发明人 |
HAULICK TIM;ROESSLER MARTIN;HAINDL KLAUS ALOIS |
分类号 |
G10L21/02;G10L21/0208 |
主分类号 |
G10L21/02 |
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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