公开(公告)号：US09923550B2

公开(公告)日：2018-03-20

申请号：US14855961

申请日：2015-09-16

申请人： Bose Corporation

发明人： Paraskevas Argyropoulos ,  Emery M. Ku

IPC分类号： G06F17/10 ,  H03H21/00 ,  G10K11/178

CPC分类号： H03H21/0012 ,  G10K11/178 ,  G10K2210/1282 ,  G10K2210/30232 ,  G10K2210/3044 ,  G10K2210/3056

摘要： The technology described in this document can be embodied in a computer-implemented method that includes receiving, by one or more processing devices, a first plurality of values representing a set of coefficients of an adaptive filter disposed in an active noise cancellation system. The method also includes accessing one or more estimates of instantaneous phase values associated with a transfer function representing an effect of a secondary path of the active noise cancellation system, and updating the first plurality of values based on the one or more estimates of the instantaneous phase values to generate a set of updated coefficients for the adaptive filter. The method further includes programming the adaptive filter with the set of updated coefficients to affect operation of the adaptive filter.

公开(公告)号：US20170077906A1

公开(公告)日：2017-03-16

申请号：US14855961

申请日：2015-09-16

申请人： Bose Corporation

发明人： Paraskevas Argyropoulos ,  Emery M. Ku

IPC分类号： H03H21/00

CPC分类号： H03H21/0012 ,  G10K11/178 ,  G10K2210/1282 ,  G10K2210/30232 ,  G10K2210/3044 ,  G10K2210/3056

摘要： The technology described in this document can be embodied in a computer-implemented method that includes receiving, by one or more processing devices, a first plurality of values representing a set of coefficients of an adaptive filter disposed in an active noise cancellation system. The method also includes accessing one or more estimates of instantaneous phase values associated with a transfer function representing an effect of a secondary path of the active noise cancellation system, and updating the first plurality of values based on the one or more estimates of the instantaneous phase values to generate a set of updated coefficients for the adaptive filter. The method further includes programming the adaptive filter with the set of updated coefficients to affect 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，该方法包括由一个或多个处理设备接收表示设置在主动噪声消除系统中的自适应滤波器的一组系数的第一多个值。 该方法还包括访问与表示有源噪声消除系统的辅助路径的影响的传递函数相关联的瞬时相位值的一个或多个估计，以及基于瞬时相位的一个或多个估计来更新第一多个值 值以产生用于自适应滤波器的一组更新的系数。 所述方法还包括用所述一组更新的系数编程所述自适应滤波器以影响所述自适应滤波器的操作。

公开(公告)号：US20190141195A1

公开(公告)日：2019-05-09

申请号：US16242616

申请日：2019-01-08

申请人： Bose Corporation

发明人： Cristian Marius Hera ,  Vigneish Kathavarayan ,  Jeffery R. Vautin ,  Elie Bou Daher ,  Paraskevas Argyropoulos

IPC分类号： H04M9/08 ,  H04B3/23 ,  H04B1/3822

CPC分类号： H04M9/082 ,  H04B1/3822 ,  H04B3/23

摘要： Audio systems and methods are provided to reduce echo content in an audio signal. The systems and methods receive an audio signal and sound stage rendering parameter(s), and select a set of filter coefficients to filter the audio signal to provide an estimated echo signal. The estimated echo signal is subtracted from a microphone signal to provide an output signal with reduced echo content. The set of filter coefficients are selected based upon the sound stage rendering parameter(s) from among a plurality of stored sets of filter coefficients.

公开(公告)号：US10200540B1

公开(公告)日：2019-02-05

申请号：US15667988

申请日：2017-08-03

申请人： BOSE CORPORATION

发明人： Cristian M. Hera ,  Vigneish Kathavarayan ,  Jeffery R. Vautin ,  Elie Bou Daher ,  Paraskevas Argyropoulos

IPC分类号： H04M9/08 ,  H04B3/23 ,  H04B1/3822

摘要： Audio systems and methods are provided to reduce echo content in an audio signal. The systems and methods receive an audio signal and sound stage rendering parameter(s), and select a set of filter coefficients to filter the audio signal to provide an estimated echo signal. The estimated echo signal is subtracted from a microphone signal to provide an output signal with reduced echo content. The set of filter coefficients are selected based upon the sound stage rendering parameter(s) from among a plurality of stored sets of filter coefficients.

公开(公告)号：US20180233159A1

公开(公告)日：2018-08-16

申请号：US15431029

申请日：2017-02-13

申请人： BOSE CORPORATION

发明人： Cristian M. Hera ,  Jeffery R. Vautin ,  Elie Bou Daher ,  Paraskevas Argyropoulos ,  Vigneish Kathavarayan

IPC分类号： G10L21/0232 ,  H03G5/16 ,  H04R1/40 ,  G10L21/0364 ,  G10L25/78 ,  H04R1/02 ,  H04R3/04

CPC分类号： G10L21/0232 ,  G10L21/0208 ,  G10L21/0364 ,  G10L25/78 ,  G10L2021/02082 ,  G10L2021/02087 ,  G10L2021/02166 ,  H03G5/165 ,  H04R1/025 ,  H04R1/406 ,  H04R3/005 ,  H04R3/04 ,  H04R2499/13

摘要： Audio systems and methods for providing intelligible audio content within a vehicle cabin. In one example, the audio system includes a first speaker to provide first audio content to a first seating position based on an audio signal received from an audio signal source, a second speaker to provide second audio content to a second seating position, a first microphone assembly positioned to detect speech content originating at the second seating position, leaked second audio content from the second speaker, and road noise, and audio signal processing circuitry configured to determine a perturbing signal based at least in part on a combination of the first speech content, the leaked second audio content, and the road noise, and adjust the audio signal to the first speaker to compensate for an effect of the perturbing signal on the first audio content at the first seating position.

公开(公告)号：US20170076709A1

公开(公告)日：2017-03-16

申请号：US14856062

申请日：2015-09-16

申请人： Bose Corporation

发明人： Emery Ku ,  Paraskevas Argyropoulos

IPC分类号： G10K11/178

CPC分类号： G10K11/178 ,  G10K2210/1282 ,  G10K2210/30232 ,  G10K2210/3028 ,  G10K2210/3055

摘要： The technology described in this document can be embodied in a computer-implemented method that includes receiving a first plurality of values representing a set of current coefficients of an adaptive filter disposed in an active noise cancellation system. The method also includes computing a second plurality of values each of which represents an instantaneous difference between a current coefficient and a corresponding preceding coefficient of the adaptive filter, and estimating, based on the second plurality of values, one or more instantaneous magnitudes of a transfer function that represents an effect of a secondary path of the active noise cancellation system. The method further includes updating the first plurality of values based on estimates of the one or more instantaneous magnitudes to generate a set of updated coefficients for the adaptive filter, and programming the adaptive filter with the set of updated coefficients

摘要翻译： 本文中描述的技术可以体现在计算机实现的方法中，该方法包括接收表示设置在主动噪声消除系统中的自适应滤波器的一组当前系数的第一多个值。 该方法还包括计算第二多个值，每个值表示当前系数和自适应滤波器的对应的先前系数之间的瞬时差，并且基于第二多个值，估计传输的一个或多个瞬时幅度 表示主动噪声消除系统的辅助路径的影响的功能。 该方法还包括基于一个或多个瞬时幅度的估计来更新第一多个值，以生成用于自适应滤波器的更新系数集合，以及用更新后的系数集合对自适应滤波器进行编程

公开(公告)号：US10601998B2

公开(公告)日：2020-03-24

申请号：US16242616

申请日：2019-01-08

申请人： Bose Corporation

发明人： Cristian Marius Hera ,  Vigneish Kathavarayan ,  Jeffery R. Vautin ,  Elie Bou Daher ,  Paraskevas Argyropoulos

IPC分类号： H04M9/08 ,  H04B3/23 ,  H04B1/3822

摘要： Audio systems and methods are provided to reduce echo content in an audio signal. The systems and methods receive an audio signal and sound stage rendering parameter(s), and select a set of filter coefficients to filter the audio signal to provide an estimated echo signal. The estimated echo signal is subtracted from a microphone signal to provide an output signal with reduced echo content. The set of filter coefficients are selected based upon the sound stage rendering parameter(s) from among a plurality of stored sets of filter coefficients.

公开(公告)号：US10388300B2

公开(公告)日：2019-08-20

申请号：US16016976

申请日：2018-06-25

申请人： BOSE CORPORATION

发明人： Cristian M. Hera ,  Jeffery R. Vautin ,  Elie Bou Daher ,  Paraskevas Argyropoulos ,  Vigneish Kathavarayan

IPC分类号： G10L21/0232 ,  H03G5/16 ,  G10L21/0364 ,  G10L25/78 ,  H04R3/00 ,  G10L21/0208 ,  G10L21/0216 ,  H04S7/00

摘要： Audio systems and methods for providing intelligible audio content within a vehicle cabin. In one example, the audio system includes a first speaker to provide first audio content to a first seating position based on an audio signal received from an audio signal source, a second speaker to provide second audio content to a second seating position, a first microphone assembly positioned to detect speech content originating at the second seating position, leaked second audio content from the second speaker, and road noise, and audio signal processing circuitry configured to determine a perturbing signal based at least in part on a combination of the first speech content, the leaked second audio content, and the road noise, and adjust the audio signal to the first speaker to compensate for an effect of the perturbing signal on the first audio content at the first seating position.

公开(公告)号：US10283105B2

公开(公告)日：2019-05-07

申请号：US15714227

申请日：2017-09-25

申请人： Bose Corporation

发明人： Emery M. Ku ,  Paraskevas Argyropoulos

IPC分类号： G10K11/178

摘要： The technology described in this document can be embodied in a computer-implemented method that includes receiving a first plurality of values representing a set of current coefficients of an adaptive filter disposed in an active noise cancellation system. The method also includes computing a second plurality of values each of which represents an instantaneous difference between a current coefficient and a corresponding preceding coefficient of the adaptive filter, and estimating, based on the second plurality of values, one or more instantaneous magnitudes of a transfer function that represents an effect of a secondary path of the active noise cancellation system. The method further includes updating the first plurality of values based on estimates of the one or more instantaneous magnitudes to generate a set of updated coefficients for the adaptive filter, and programming the adaptive filter with the set of updated coefficients.

公开(公告)号：US20180025717A1

公开(公告)日：2018-01-25

申请号：US15714227

申请日：2017-09-25

申请人： Bose Corporation

发明人： Emery M. Ku ,  Paraskevas Argyropoulos

IPC分类号： G10K11/178

CPC分类号： G10K11/178 ,  G10K2210/1282 ,  G10K2210/30232 ,  G10K2210/3028 ,  G10K2210/3055

摘要： The technology described in this document can be embodied in a computer-implemented method that includes receiving a first plurality of values representing a set of current coefficients of an adaptive filter disposed in an active noise cancellation system. The method also includes computing a second plurality of values each of which represents an instantaneous difference between a current coefficient and a corresponding preceding coefficient of the adaptive filter, and estimating, based on the second plurality of values, one or more instantaneous magnitudes of a transfer function that represents an effect of a secondary path of the active noise cancellation system. The method further includes updating the first plurality of values based on estimates of the one or more instantaneous magnitudes to generate a set of updated coefficients for the adaptive filter, and programming the adaptive filter with the set of updated coefficients