发明授权
- 专利标题: Active sound reduction system and method
- 专利标题(中): 主动减音系统及方法
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申请号: US13387763申请日: 2010-07-30
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公开(公告)号: US09384727B2公开(公告)日: 2016-07-05
- 发明人: Paul Sebastian Booij , Adriaan Johan Van Leest , Ronaldus Maria Aarts
- 申请人: Paul Sebastian Booij , Adriaan Johan Van Leest , Ronaldus Maria Aarts
- 申请人地址: NL Eindhoven
- 专利权人: KONINKLIJKE PHILIPS N.V.
- 当前专利权人: KONINKLIJKE PHILIPS N.V.
- 当前专利权人地址: NL Eindhoven
- 代理商 Larry Liberchuk
- 优先权: EP09167433 20090807
- 国际申请: PCT/IB2010/053472 WO 20100730
- 国际公布: WO2011/015979 WO 20110210
- 主分类号: G10K11/16
- IPC分类号: G10K11/16 ; G10K11/178
摘要:
The present invention refers to an active sound reduction system and method for attenuation of sound emitted by a primary sound source, especially for attenuation of snoring sounds emitted by a human being. This system comprises a primary sound source, at least one speaker as a secondary sound source for producing an attenuating sound to be superposed with the sound emitted by said primary sound source, a reference microphone for receiving sound from said primary sound source, and at least one error microphone being allocated to each speaker to form a speaker/microphone pair. The at least one error microphone is provided as a directional microphone pointing at its allocated speaker to receive residual sound resulting from the superposition of the sounds from the primary sound source and the corresponding speaker. The error microphone and speaker of at least one speaker/microphone pair and the primary sound source are arranged substantially collinear. A control unit is provided to receive an output reference signal of the reference microphone representing the sound received by the reference microphone and an output error signal of the at least one error microphone representing the sound received by the at least one error microphone and to calculate a control signal for the speaker from the output reference signal and the output error signal.
公开/授权文献
- US20120163626A1 ACTIVE SOUND REDUCTION SYSTEM AND METHOD 公开/授权日:2012-06-28
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