公开(公告)号：WO2014163966A1

公开(公告)日：2014-10-09

申请号：PCT/US2014/019359

申请日：2014-02-28

Applicant: BOSE CORPORATION

Inventor： PAN, Davis Y. ,  GANESHKUMAR, Alaganandan

IPC: G10K11/178

CPC classification number: H04R1/00 ,  G10K11/178 ,  G10K11/1783 ,  G10K11/17854 ,  G10K11/17883 ,  G10K2210/1282 ,  G10K2210/3032 ,  G10K2210/3033 ,  G10K2210/3056 ,  H04R1/1083

Abstract: A device and method that is configured to operate an active noise reduction system for a motor vehicle, where there is an active noise reduction system input signal that is related to the vehicle engine operation, and where the active noise reduction system comprises one or more adaptive filters that output noise reduction signals that are used to drive one or more transducers with their outputs directed to reduce engine noise. The engine harmonic noise level is estimated from the input signal that is related to the vehicle engine operation, and the output of the transducers is limited based on the estimate of the engine harmonic noise level.

Abstract translation: 一种被配置为操作用于机动车辆的有源降噪系统的装置和方法，其中存在与车辆发动机操作有关的主动降噪系统输入信号，并且其中主动降噪系统包括一个或多个自适应 滤波器，其输出用于驱动一个或多个换能器的降噪信号，其输出被引导以减少发动机噪声。 根据与车辆发动机运转相关的输入信号估计发动机谐波噪声电平，并且基于发动机谐波噪声电平的估计来限制换能器的输出。

公开(公告)号：WO2017083530A1

公开(公告)日：2017-05-18

申请号：PCT/US2016/061348

申请日：2016-11-10

Applicant: BOSE CORPORATION

Inventor： PAN, Davis Y.

IPC: H04M9/08

CPC classification number: H04R29/001 ,  G10K11/178 ,  G10K2210/3028 ,  G10K2210/3055 ,  H04M9/082

Abstract: An acoustic echo canceller includes an adaptive filter and a double-talk detector. The adaptive filter includes a linear filter and a coefficient calculator. The linear filter has a transfer function that is controlled by a set of variable filter coefficients and that is configured to cancel an estimate of echo in a microphone signal to provide an output signal. The coefficient calculator is configured to update the set of variable filter coefficients based on a variable adaptation rate. The double-talk detector is configured to calculate changes in the energy of the variable filter coefficients (between updates of the coefficients). The acoustic echo canceller is configured to adjust the variable adaptation rate based on whether the energy of the variable filter coefficients is determined to be either oscillating or steadily changing (increasing or decreasing).

Abstract translation: 声学回声消除器包括自适应滤波器和双方讲话检测器。 自适应滤波器包括线性滤波器和系数计算器。 线性滤波器具有由一组可变滤波器系数控制的传递函数，并且该传递函数被配置为消除麦克风信号中的回声估计以提供输出信号。 系数计算器被配置为基于可变自适应速率来更新该组可变滤波器系数。 双通话检测器被配置为计算可变滤波器系数的能量的变化（在系数的更新之间）。 声学回声消除器被配置为基于可变滤波器系数的能量被确定为振荡还是稳定地变化（增加或减少）来调整可变自适应速率。

公开(公告)号：WO2010047907A1

公开(公告)日：2010-04-29

申请号：PCT/US2009/057787

申请日：2009-09-22

Applicant: BOSE CORPORATION ,  PAN, Davis Y. ,  SALVADOR, Eduardo T.

Inventor： PAN, Davis Y. ,  SALVADOR, Eduardo T.

IPC: G10K11/178

CPC classification number: G10K11/178 ,  G10K2210/1282 ,  G10K2210/3028 ,  G10K2210/3056

Abstract: A method for determining leakage factors or adaptation rates, or both, for adaptive filters in an active noise reduction system. The leakage factor or adaptation rate, or both, may vary depending on a parameter of an input reference signal. The parameter may include one or more of reference signal input frequency, rate of change of reference input signal frequency, if a predetermined triggering condition exits, or if a predetermined event has occurred.

Abstract translation: 一种用于确定有源降噪系统中的自适应滤波器的泄漏因子或适应速率或两者的方法。 泄漏因子或自适应速率，或两者都可以根据输入参考信号的参数而变化。 参数可以包括一个或多个参考信号输入频率，参考输入信号频率的变化率，如果预定触发条件退出，或者如果发生预定事件。

公开(公告)号：WO2013090007A1

公开(公告)日：2013-06-20

申请号：PCT/US2012/066740

申请日：2012-11-28

Applicant: BOSE CORPORATION ,  PAN, Davis Y. ,  RABINOWITZ, William M. ,  KIM, Wontak ,  GREENBERGER, Hal

Inventor： PAN, Davis Y. ,  RABINOWITZ, William M. ,  KIM, Wontak ,  GREENBERGER, Hal

IPC: H04R29/00 ,  H04S7/00 ,  G10K11/178 ,  G10K15/02

CPC classification number: H04S7/00 ,  G10K11/178 ,  G10K2210/1082 ,  G10K2210/1282 ,  G10K2210/3046 ,  G10K2210/3048 ,  G10K2210/3055 ,  H04R29/00 ,  H04R2420/01 ,  H04R2499/13

Abstract: A method of virtually tuning an audio system that incorporates an acoustic compensation system, where the audio system is adapted to play audio signals in a listening environment over one or more sound transducers. The acoustic compensation system has an audio sensor located at a sensor location in the listening environment. The transfer functions from each sound transducer to the audio sensor location are inherent. The method contemplates recording noise at the sensor location, and creating virtual transfer functions from each sound transducer to the sensor location based on the inherent transfer functions from each sound transducer to the sensor location. Audio signals are processed through the virtual sound transducer to sensor location transfer functions. A virtual sensor signal is created by combining the audio signals processed through the virtual sound transducer to sensor location transfer functions with the noise recorded at the sensor location.

Abstract translation: 一种虚拟调谐包括声学补偿系统的音频系统的方法，其中音频系统适于在听觉环境中通过一个或多个声音换能器播放音频信号。 声学补偿系统具有位于听觉环境中的传感器位置处的音频传感器。 从每个声音传感器到音频传感器位置的传递函数是固有的。 该方法考虑在传感器位置处记录噪声，并且基于从每个声音换能器到传感器位置的固有传递函数，从每个声音换能器到传感器位置创建虚拟传递函数。 音频信号通过虚拟声音传感器处理，以传感器位置传递功能。 通过将通过虚拟声音传感器处理的音频信号与传感器位置传递函数与传感器位置处记录的噪声组合来创建虚拟传感器信号。

公开(公告)号：WO2011112417A1

公开(公告)日：2011-09-15

申请号：PCT/US2011/027009

申请日：2011-03-03

Applicant: BOSE CORPORATION ,  GANESHKUMAR, Alaganandan ,  PAN, Davis Y.

Inventor： GANESHKUMAR, Alaganandan ,  PAN, Davis Y.

IPC: G10K11/178

CPC classification number: G10K11/178 ,  G10K2210/1282 ,  G10K2210/3016 ,  G10K2210/503

Abstract: A system for correcting erroneous microphone readings in a vehicle engine harmonic cancellation (EHC) system. A method for operating an engine harmonic cancelling system, includes receiving, from a first microphone at a first location in a vehicle cabin, a signal representative of noise in the vehicle cabin; receiving, from a second microphone at a second location in the vehicle cabin, a signal representative of noise in the vehicle cabin; and correlating the signal from the first microphone with the signal from the second microphone.

Abstract translation: 一种用于校正车辆发动机谐波消除（EHC）系统中的错误麦克风读数的系统。 一种用于操作发动机谐波消除系统的方法，包括从车厢中的第一位置处的第一麦克风接收代表车厢中的噪声的信号; 在车厢的第二位置从第二麦克风接收表示车厢内的噪声的信号; 并将来自第一麦克风的信号与来自第二麦克风的信号相关联。

公开(公告)号：WO2015034632A2

公开(公告)日：2015-03-12

申请号：PCT/US2014/050681

申请日：2014-08-12

Applicant: BOSE CORPORATION

Inventor： PAN, Davis Y.

IPC: G10K11/178

CPC classification number: G10K11/178 ,  G10K11/17823 ,  G10K11/17833 ,  G10K11/17854 ,  G10K11/17883 ,  G10K2210/121 ,  G10K2210/1282 ,  G10K2210/3016 ,  G10K2210/3035 ,  G10K2210/3037 ,  G10K2210/3053

Abstract: A device and method that is configured to operate an active noise reduction system for a motor vehicle, where there is an active noise reduction system input signal that is related to the vehicle engine speed, and where the active noise reduction system comprises one or more adaptive filters that use a filter coefficient to modify the amplitude and/or phase of a noise cancellation reference signal and output noise reduction signals that are used to drive one or more transducers with their outputs directed to reduce engine noise, where the value of the coefficient is related to an adaptive filter leakage factor. Changes in the engine speed, based on the input signal that is related to the vehicle engine operation, are monitored. In response to changes in the engine speed, the adaptive filter leakage factor is temporarily modified.

Abstract translation: 一种被配置为操作用于机动车辆的主动降噪系统的装置和方法，其中存在与车辆发动机转速相关的主动降噪系统输入信号，并且其中主动降噪系统包括一个或多个自适应 滤波器，其使用滤波器系数来修改噪声消除参考信号的幅度和/或相位，并且输出用于驱动一个或多个换能器的降噪信号，其输出被引导以减少发动机噪声，其中系数值为 与自适应滤波器泄漏因子有关。 监视基于与车辆发动机运转相关的输入信号的发动机转速变化。 响应于发动机速度的变化，自适应滤波器泄漏因子被暂时修改。

公开(公告)号：WO2010047909A1

公开(公告)日：2010-04-29

申请号：PCT/US2009/057945

申请日：2009-09-23

Applicant: BOSE CORPORATION ,  PAN, Davis Y. ,  CHENG, Christopher J.

Inventor： PAN, Davis Y. ,  CHENG, Christopher J.

IPC: G10L21/02 ,  G10K11/178

CPC classification number: G10K11/178 ,  G10K11/17854 ,  G10K2210/128 ,  G10K2210/3028 ,  G10L21/0208

Abstract: A method for determining leakage factors or adaptation rates, or both, for adaptive filters in an active noise reduction system. The leakage factor or adaptation rate, or both, may vary depending on a parameter of an input reference signal. The parameter may include one or more of reference signal input frequency, rate of change of reference input signal frequency, if a predetermined triggering condition exits, or if a predetermined event has occurred.

Abstract translation: 一种用于确定有源降噪系统中的自适应滤波器的泄漏因子或适应速率或两者的方法。 泄漏因子或自适应速率，或两者都可以根据输入参考信号的参数而变化。 参数可以包括一个或多个参考信号输入频率，参考输入信号频率的变化率，如果预定触发条件退出，或者如果发生预定事件。

公开(公告)号：WO2014158693A1

公开(公告)日：2014-10-02

申请号：PCT/US2014/019323

申请日：2014-02-28

Applicant: BOSE CORPORATION

Inventor： PAN, Davis Y.

IPC: G10K11/178

CPC classification number: G10K11/16 ,  G10K11/17883 ,  G10K2210/128 ,  G10K2210/3027 ,  G10K2210/3028 ,  G10K2210/511

Abstract: A system, device and method that is configured to operate an active noise reduction system for a motor vehicle, where there is an adaptive feed-forward noise reduction system input sine wave at a frequency to be cancelled, and where the adaptive feed-forward noise reduction system includes an adaptive filter that outputs noise reduction signals that are used to drive one or more transducers with their outputs directed to reduce engine noise, and further includes an input transducer with an output signal that is a source of a control signal for the adaptive filter. The output signal of the input transducer is filtered before it reaches the adaptive filter so as to reduce the level of the output signal of the input transducer at one or more frequencies that are close to the frequency of the input sine wave.

Abstract translation: 一种被配置为操作用于机动车辆的主动降噪系统的系统，装置和方法，其中存在自适应前馈噪声降低系统以待消除的频率输入正弦波，并且其中自适应前馈噪声 减小系统包括自适应滤波器，其输出用于驱动一个或多个换能器的降噪信号，其输出被引导以减少发动机噪声，并且还包括具有输出信号的输入换能器，输出信号是用于自适应 过滤。 输入传感器的输出信号在到达自适应滤波器之前被滤波，以便在接近输入正弦波频率的一个或多个频率处降低输入传感器输出信号的电平。

公开(公告)号：WO2011109156A1

公开(公告)日：2011-09-09

申请号：PCT/US2011/024673

申请日：2011-02-14

Applicant: BOSE CORPORATION ,  HERA, Cristian M. ,  PAN, Davis Y.

Inventor： HERA, Cristian M. ,  PAN, Davis Y.

IPC: G10K15/02

CPC classification number: G10K15/02 ,  B60L2270/142 ,  B60L2270/42

Abstract: A vehicle engine harmonic enhancement system. A method for operating the system includes providing a first engine harmonic enhancement audio signal and equalizing the first engine harmonic enhancement audio signal separately for each of the plurality of loudspeakers to provide individually equalized loudspeaker engine harmonic enhancement audio signals. A vehicle audio system includes a plurality of loudspeakers, an entertainment audio system, and an engine harmonic enhancement system. A method includes equalizing an entertainment audio signal to provide an equalized entertainment audio signal; providing an engine harmonic enhancement audio signal; equalizing the engine harmonic enhancement audio signal separately from the entertainment audio signal to provide an equalized engine harmonic enhancement audio signal; and combining the equalized entertainment audio signal with the equalized engine harmonic enhancement audio signal.

Abstract translation: 一种车辆发动机谐波增强系统。 一种用于操作该系统的方法包括：提供第一发动机谐波增强音频信号，并且分别对多个扬声器中的每一个均衡第一发动机谐波增强音频信号以提供单独均衡的扬声器引擎谐波增强音频信号。 车载音响系统包括多个扬声器，娱乐音响系统和发动机谐波增强系统。 一种方法包括均衡娱乐音频信号以提供均衡的娱乐音频信号; 提供发动机谐波增强音频信号; 将引擎谐波增强音频信号与娱乐音频信号分开平衡，以提供均衡的发动机谐波增强音频信号; 以及将均衡的娱乐音频信号与均衡的发动机谐波增强音频信号组合。

公开(公告)号：WO2009108396A1

公开(公告)日：2009-09-03

申请号：PCT/US2009/030268

申请日：2009-01-07

Applicant: BOSE CORPORATION ,  PAN, Davis Y. ,  CHENG, Christopher J. ,  SALVADOR, Eduardo T.

Inventor： PAN, Davis Y. ,  CHENG, Christopher J. ,  SALVADOR, Eduardo T.

IPC: G10K11/178

CPC classification number: G10K11/178 ,  G10K2210/1282 ,  G10K2210/3028

Abstract: An active noise reduction system uses adaptive filters (16). A leakage factor (75) is applied to an adaptive filter coefficient value and to a coefficient value update amount, providing an updated adaptive coefficient value. The updated adaptive coefficient value is applied to an audio signal.

Abstract translation: 有源降噪系统使用自适应滤波器（16）。 将泄漏因子（75）应用于自适应滤波器系数值和系数值更新量，提供更新的自适应系数值。 更新的自适应系数值被应用于音频信号。