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公开(公告)号：US09633647B2
公开(公告)日：2017-04-25
申请号：US15284738
申请日：2016-10-04
申请人： Bose Corporation
发明人： Emery M. Ku
IPC分类号： H04B1/00 , H04B15/00 , G10K11/178 , H04B1/04 , H04B1/62
CPC分类号： G10K11/1788 , G10K11/178 , G10K2210/1282 , G10K2210/30232 , G10K2210/3027 , G10K2210/3028 , G10K2210/3032 , G10K2210/3053 , G10K2210/3055 , G10K2210/502 , H03H21/0012 , H03H21/0067 , H04B1/0475 , H04B1/62 , H04B15/00
摘要： The technology described in this document can be embodied in a computer-implemented method that includes receiving, at one or more processing devices, a plurality of values representing a set of coefficients of an adaptive filter over a period of time, and identifying, by the one or more processing devices based on the plurality of values, a phase error associated with a transfer function of the adaptive filter. The method also includes adjusting, based on the identified phase error, a phase associated with the transfer function of the adaptive filter such that coefficients calculated using the adjusted transfer function reduce the phase error. The method further includes determining a set of coefficients for the adaptive filter based on the adjusted transfer function, and programming the adaptive filter with the determined set of coefficients to enable operation of the adaptive filter.
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公开(公告)号：US5337365A
公开(公告)日：1994-08-09
申请号：US935100
申请日：1992-08-27
IPC分类号： B64C1/40 , G10K11/178 , A61F11/06
CPC分类号： G10K11/1786 , G10K2210/121 , G10K2210/1282 , G10K2210/3046 , G10K2210/3221 , G10K2210/502 , G10K2210/503
摘要： An apparatus for reducing noise for an interior of enclosed space, e.g., a vehicular compartment using an FIR adaptive digital filter is disclosed in which a control circuit is provided which outputs drive signals to a plurality of loud speakers which generate control sounds to interfer with a noise sound propagated in the interior so that a performance function including terms of residual noise signals output from residual noise signal detecting microphones and drive signals to the loud speakers is minimized and contributivity of the drive signals to the performance function is changed according to an occurrence of divergence in the noise reducing apparatus.
摘要翻译： 公开了一种用于减少封闭空间内部的噪声的设备，例如使用FIR自适应数字滤波器的车厢，其中提供了一种控制电路，其向多个扬声器输出驱动信号，该扬声器产生控制声音以干扰 噪声在内部传播，使得包括从剩余噪声信号检测麦克风输出的残留噪声信号的项目和对扬声器的驱动信号的性能函数最小化，并且驱动信号对性能函数的贡献度根据 降噪装置发散。
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公开(公告)号：US20170025114A1
公开(公告)日：2017-01-26
申请号：US15284738
申请日：2016-10-04
申请人： Bose Corporation
发明人： Emery M. Ku
IPC分类号： G10K11/178 , H04B1/04 , H04B1/62 , H04B15/00
CPC分类号： G10K11/1788 , G10K11/178 , G10K2210/1282 , G10K2210/30232 , G10K2210/3027 , G10K2210/3028 , G10K2210/3032 , G10K2210/3053 , G10K2210/3055 , G10K2210/502 , H03H21/0012 , H03H21/0067 , H04B1/0475 , H04B1/62 , H04B15/00
摘要： The technology described in this document can be embodied in a computer-implemented method that includes receiving, at one or more processing devices, a plurality of values representing a set of coefficients of an adaptive filter over a period of time, and identifying, by the one or more processing devices based on the plurality of values, a phase error associated with a transfer function of the adaptive filter. The method also includes adjusting, based on the identified phase error, a phase associated with the transfer function of the adaptive filter such that coefficients calculated using the adjusted transfer function reduce the phase error. The method further includes determining a set of coefficients for the adaptive filter based on the adjusted transfer function, and programming the adaptive filter with the determined set of coefficients to enable operation of the adaptive filter.
摘要翻译： 本文档中描述的技术可以体现在计算机实现的方法中，该方法包括在一个或多个处理设备处在一段时间内接收表示自适应滤波器的一组系数的多个值，并且通过 基于所述多个值的一个或多个处理装置，与所述自适应滤波器的传递函数相关联的相位误差。 该方法还包括基于所识别的相位误差来调整与自适应滤波器的传递函数相关联的相位，使得使用调整的传递函数计算的系数降低相位误差。 该方法还包括基于经调整的传递函数确定用于自适应滤波器的一系列系数，以及使用所确定的一系列系数对自适应滤波器进行编程以使能自适应滤波器的操作。
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公开(公告)号：US09485035B2
公开(公告)日：2016-11-01
申请号：US14963589
申请日：2015-12-09
申请人： Bose Corporation
发明人： Emery M. Ku
CPC分类号： G10K11/1788 , G10K11/178 , G10K2210/1282 , G10K2210/30232 , G10K2210/3027 , G10K2210/3028 , G10K2210/3032 , G10K2210/3053 , G10K2210/3055 , G10K2210/502 , H03H21/0012 , H03H21/0067 , H04B1/0475 , H04B1/62 , H04B15/00
摘要： The technology described in this document can be embodied in a computer-implemented method that includes receiving, at one or more processing devices, a plurality of values representing a set of coefficients of an adaptive filter over a period of time, and identifying, by the one or more processing devices based on the plurality of values, a phase error associated with a transfer function of the adaptive filter. The method also includes adjusting, based on the identified phase error, a phase associated with the transfer function of the adaptive filter such that coefficients calculated using the adjusted transfer o function reduce the phase error. The method further includes determining a set of coefficients for the adaptive filter based on the adjusted transfer function, and programming the adaptive filter with the determined set of coefficients to enable operation of the adaptive filter.
摘要翻译： 本文档中描述的技术可以体现在计算机实现的方法中，该方法包括在一个或多个处理设备处在一段时间内接收表示自适应滤波器的一组系数的多个值，并且通过 基于所述多个值的一个或多个处理装置，与所述自适应滤波器的传递函数相关联的相位误差。 该方法还包括基于所识别的相位误差来调整与自适应滤波器的传递函数相关联的相位，使得使用经调整的传递函数计算的系数减少相位误差。 该方法还包括基于经调整的传递函数确定用于自适应滤波器的一系列系数，以及使用所确定的一系列系数对自适应滤波器进行编程以使能自适应滤波器的操作。
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公开(公告)号：US4480333A
公开(公告)日：1984-10-30
申请号：US368095
申请日：1982-04-13
申请人： Colin F. Ross
发明人： Colin F. Ross
IPC分类号： G10K11/178 , H04B15/00
CPC分类号： G10K11/1784 , G10K2210/30351 , G10K2210/3045 , G10K2210/3229 , G10K2210/502
摘要： Sound control systems which employ sound cancellation may deteriorate due to ageing or change of conditions. The system described is contructed to change according to the sound level at a point where cancellation is to be achieved by sound from a loudspeaker driven by modified signals from a microphone which picks up sounds from a noise source. The signals from the microphone pass through a filter circuit having a transfer function which is controlled by a controller. Signals from the point where cancellation is required, and after modification, from the microphone and the filter circuit are employed by the controller to derive a control signal for the filter circuit.
摘要翻译： 使用声音消除的声音控制系统可能由于老化或条件的改变而恶化。 所描述的系统被构造为根据通过来自麦克风的来自噪声源的麦克风的修改信号驱动的扬声器的声音来实现抵消的点处的声级的变化。 来自麦克风的信号通过具有由控制器控制的传递函数的滤波器电路。 控制器采用从麦克风和滤波器电路要求取消，修改后的信号，得出滤波电路的控制信号。
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公开(公告)号：US09240819B1
公开(公告)日：2016-01-19
申请号：US14504975
申请日：2014-10-02
申请人： Bose Corporation
发明人： Emery M. Ku
CPC分类号： G10K11/1788 , G10K11/178 , G10K2210/1282 , G10K2210/30232 , G10K2210/3027 , G10K2210/3028 , G10K2210/3032 , G10K2210/3053 , G10K2210/3055 , G10K2210/502 , H03H21/0012 , H03H21/0067 , H04B1/0475 , H04B1/62 , H04B15/00
摘要： The technology described in this document can be embodied in a computer-implemented method that includes receiving, at one or more processing devices, a plurality of values representing a set of coefficients of an adaptive filter over a period of time, and identifying, by the one or more processing devices based on the plurality of values, a phase error associated with a transfer function of the adaptive filter. The method also includes adjusting, based on the identified phase error, a phase associated with the transfer function of the adaptive filter such that coefficients calculated using the adjusted transfer function reduce the phase error. The method further includes determining a set of coefficients for the adaptive filter based on the adjusted transfer function, and programming the adaptive filter with the determined set of coefficients to enable operation of the adaptive filter.
摘要翻译： 本文档中描述的技术可以体现在计算机实现的方法中，该方法包括在一个或多个处理设备处在一段时间内接收表示自适应滤波器的一组系数的多个值，并且通过 基于所述多个值的一个或多个处理装置，与所述自适应滤波器的传递函数相关联的相位误差。 该方法还包括基于所识别的相位误差来调整与自适应滤波器的传递函数相关联的相位，使得使用调整的传递函数计算的系数降低相位误差。 该方法还包括基于经调整的传递函数确定用于自适应滤波器的一系列系数，以及使用所确定的一系列系数对自适应滤波器进行编程以使能自适应滤波器的操作。
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公开(公告)号：US20030198354A1
公开(公告)日：2003-10-23
申请号：US10406964
申请日：2003-04-04
IPC分类号： A61F011/06 , G10K011/16 , H03B029/00
CPC分类号： G10K11/178 , G01H3/005 , G10K2210/1282 , G10K2210/30232 , G10K2210/3031 , G10K2210/3033 , G10K2210/3226 , G10K2210/502 , G10K2210/504
摘要： An active noise control system (100) and method compensates for changes in a microphone output to maintain accurate noise control. A calibration signal reflecting a desired microphone output is generated and stored in an active noise control module (106). During operation, the active noise control module (106) compares an actual microphone output signal with the calibration signal and compensates for any changes in the actual output signal before any noise compensation or cancellation function occurs.
摘要翻译： 主动噪声控制系统（100）和方法补偿麦克风输出的变化，以保持精确的噪声控制。 生成反映所需麦克风输出的校准信号并将其存储在有源噪声控制模块（106）中。 在操作期间，主动噪声控制模块（106）将实际的麦克风输出信号与校准信号进行比较，并在发生任何噪声补偿或消除功能之前补偿实际输出信号中的任何变化。
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8.发明授权Vibration/noise control system including adaptive digital filters for simulating dynamic characteristics of a vibration/noise source having a rotating member 失效振动/噪声控制系统包括用于模拟具有旋转构件的振动/噪声源的动态特性的自适应数字滤波器
公开(公告)号：US5912821A
公开(公告)日：1999-06-15
申请号：US819215
申请日：1997-03-17
申请人： Toshiaki Kobayashi
发明人： Toshiaki Kobayashi
CPC分类号： F16F15/02 , G10K11/1786 , G10K2210/121 , G10K2210/1282 , G10K2210/1291 , G10K2210/30232 , G10K2210/3211 , G10K2210/502 , G10K2210/511
摘要： A control system for controlling vibrations and noises generated by a vibration/noise source having at least a rotating member includes a first filter which generates a control signal for controlling the vibrations and noises. A self-expanding engine mount is arranged in a noise transmission path and converts the control signal into a driving signal for driving the noise source. An error sensor detects an error signal indicative of a difference between the driving signal and the vibrations and noises. A second filter stores a transfer characteristic of a portion of the noise transmission path extending between the first filter and the error sensor, and generates a reference signal based on the transfer characteristic. The control signal is updated in a manner such that the error signal is minimized. In addition, adaptive digital filters are provided for simulating both a dynamic characteristic of a physical system extending between the first filter and a predetermined control area and a dynamic characteristic of the portion of the transmission path extending between the first filter and the error sensor. The filter coefficients of the adaptive digital filters are updated in accordance with a genetic algorithm.
摘要翻译： 用于控制由至少具有旋转构件的振动/噪声源产生的振动和噪声的控制系统包括产生用于控制振动和噪声的控制信号的第一滤波器。 自扩张发动机支架设置在噪声传输路径中，并将控制信号转换成用于驱动噪声源的驱动信号。 误差传感器检测表示驱动信号与振动和噪声之间的差异的误差信号。 第二滤波器存储在第一滤波器和误差传感器之间延伸的噪声传输路径的一部分的传输特性，并且基于传送特性生成参考信号。 以使得误差信号最小化的方式更新控制信号。 此外，提供自适应数字滤波器用于模拟在第一滤波器和预定控制区域之间延伸的物理系统的动态特性以及在第一滤波器和误差传感器之间延伸的传输路径的部分的动态特性。 根据遗传算法更新自适应数字滤波器的滤波器系数。
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公开(公告)号：US4596033A
公开(公告)日：1986-06-17
申请号：US704028
申请日：1985-02-21
申请人： Malcolm A. Swinbanks
发明人： Malcolm A. Swinbanks
IPC分类号： G10K11/178 , G10K11/16 , H04R1/28
CPC分类号： G10K11/1784 , G10K2210/112 , G10K2210/30232 , G10K2210/3045 , G10K2210/3048 , G10K2210/502
摘要： When sound waves are intentionally attenuated by systems using destructive interference temporal changes sometimes cause less than optimum performance. In the present invention the transfer function of a signal processing system connected between a sound detector and a sound generator destructively interfering with an unwanted sound is modified at intervals as a result of sequential measurements of the transfer function between the sound detector and a further sound detector downstream from the generator. For this purpose a data processor calculates the required transfer function and causes a data processor to vary the coefficients of a digital filter comprising the signal processing system.
摘要翻译： 当使用破坏性干扰的系统有意地衰减声波时，时间变化有时会导致不到最佳性能。 在本发明中，作为连续测量声音检测器和另外的声音检测器之间的传递函数的结果，间隔地修改了连接在声音检测器和声音发生器之间的信号处理系统的传递函数，该声音检测器和声音发生器相互干扰不需要的声音 下游发电机。 为此，数据处理器计算所需的传递函数，并使数据处理器改变包括信号处理系统的数字滤波器的系数。
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公开(公告)号：US20160099783A1
公开(公告)日：2016-04-07
申请号：US14963589
申请日：2015-12-09
申请人： Bose Corporation
发明人： Emery M. Ku
IPC分类号： H04B15/00
CPC分类号： G10K11/1788 , G10K11/178 , G10K2210/1282 , G10K2210/30232 , G10K2210/3027 , G10K2210/3028 , G10K2210/3032 , G10K2210/3053 , G10K2210/3055 , G10K2210/502 , H03H21/0012 , H03H21/0067 , H04B1/0475 , H04B1/62 , H04B15/00
摘要： The technology described in this document can be embodied in a computer-implemented method that includes receiving, at one or more processing devices, a plurality of values representing a set of coefficients of an adaptive filter over a period of time, and identifying, by the one or more processing devices based on the plurality of values, a phase error associated with a transfer function of the adaptive filter. The method also includes adjusting, based on the identified phase error, a phase associated with the transfer function of the adaptive filter such that coefficients calculated using the adjusted transfer o function reduce the phase error. The method further includes determining a set of coefficients for the adaptive filter based on the adjusted transfer function, and programming the adaptive filter with the determined set of coefficients to enable operation of the adaptive filter.
摘要翻译： 本文档中描述的技术可以体现在计算机实现的方法中，该方法包括在一个或多个处理设备处在一段时间内接收表示自适应滤波器的一组系数的多个值，并且通过 基于所述多个值的一个或多个处理装置，与所述自适应滤波器的传递函数相关联的相位误差。 该方法还包括基于所识别的相位误差来调整与自适应滤波器的传递函数相关联的相位，使得使用经调整的传递函数计算的系数减少相位误差。 该方法还包括基于经调整的传递函数确定用于自适应滤波器的一系列系数，以及使用所确定的一系列系数对自适应滤波器进行编程以使能自适应滤波器的操作。
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