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1. 发明申请

WO2012074403A2 ACTIVE NOISE REDUCING FILTER APPARATUS, AND A METHOD OF MANUFACTURING SUCH AN APPARATUS 审中-公开
标题翻译：主动噪声减少滤波器装置以及制造这种装置的方法
公开(公告)号：WO2012074403A2
公开(公告)日：2012-06-07
申请号：PCT/NL2011/050828
申请日：2011-12-01
申请人： NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNO , BERKHOFF, Arthur Perry , WESSELINK, Johan
发明人： BERKHOFF, Arthur Perry , WESSELINK, Johan
IPC分类号： G10K11/178
CPC分类号： G10K11/178 , G10K2210/12 , G10K2210/3055
摘要： The invention provides an active noise reducing filter apparatus for actively reducing noise d from at least one primary noise source reference signal x. The apparatus comprises a secondary source signal connector connected to a secondary source generating secondary noise y based on a secondary signal u for reducing said primary noise d. A sensor connector is connected to a sensor for measuring said primary and secondary noise as an error signal e. A reference signal connector receives the reference signal x, and a control filter W receives the reference signal x and calculates a control signal for providing the signal u. An adaptation circuit receives said error signal e and reference signal x and adapts the control filter W. The adaptation circuit adapts the filter W using a representation of said secondary source including a secondary source transfer function G of said secondary source and an additional damping for providing improved stability.
摘要翻译：本发明提供一种主动降噪滤波器装置，用于从至少一个主要噪声源参考信号x主动降低噪声d。该装置包括连接到次级源的次级源信号连接器，其基于用于减小所述初级噪声d的次级信号u产生次级噪声y。传感器连接器连接到用于测量所述初级和次级噪声的传感器作为误差信号e。参考信号连接器接收参考信号x，并且控制滤波器W接收参考信号x并且计算用于提供信号u的控制信号。适应电路接收所述误差信号e和参考信号x并使控制滤波器W适配。适配电路使用包括所述次级源的次级源传递函数G的所述次级源的表示来适配滤波器W，以及用于提供改善稳定性。

2. 发明申请

WO2012074403A3 ACTIVE NOISE REDUCING FILTER APPARATUS, AND A METHOD OF MANUFACTURING SUCH AN APPARATUS 审中-公开
标题翻译：有源降噪滤波器装置，以及制造这种装置的方法
公开(公告)号：WO2012074403A3
公开(公告)日：2012-11-15
申请号：PCT/NL2011050828
申请日：2011-12-01
申请人： TNO , BERKHOFF ARTHUR PERRY , WESSELINK JOHAN
发明人： BERKHOFF ARTHUR PERRY , WESSELINK JOHAN
IPC分类号： G10K11/178
CPC分类号： G10K11/178 , G10K2210/12 , G10K2210/3055
摘要： The invention provides an active noise reducing filter apparatus for actively reducing noise d from at least one primary noise source reference signal x. The apparatus comprises a secondary source signal connector connected to a secondary source generating secondary noise y based on a secondary signal u for reducing said primary noise d. A sensor connector is connected to a sensor for measuring said primary and secondary noise as an error signal e. A reference signal connector receives the reference signal x, and a control filter W receives the reference signal x and calculates a control signal for providing the signal u. An adaptation circuit receives said error signal e and reference signal x and adapts the control filter W. The adaptation circuit adapts the filter W using a representation of said secondary source including a secondary source transfer function G of said secondary source and an additional damping for providing improved stability.
摘要翻译：本发明提供了一种有源降噪滤波器装置，用于主动降低来自至少一个主噪声源参考信号x的噪声d。该设备包括连接到次级源的次级源信号连接器，次级源基于用于减小所述初级噪声d的次级信号u产生次级噪声y。传感器连接器连接到传感器，用于测量所述初级和次级噪声作为误差信号e。参考信号连接器接收参考信号x，并且控制滤波器W接收参考信号x并计算用于提供信号u的控制信号。自适应电路接收所述误差信号e和参考信号x并调整控制滤波器W.自适应电路使用包括所述次级源的次级源传递函数G和附加阻尼的所述次级源的表示来调整滤波器W，改善稳定性。

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