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1. 发明申请

US20170142532A1 Double-Talk Detection for Acoustic Echo Cancellation 审中-公开
公开(公告)号：US20170142532A1
公开(公告)日：2017-05-18
申请号：US14940495
申请日：2015-11-13
申请人： Bose Corporation
发明人： Davis Y. Pan
IPC分类号： H04R29/00 , G10K11/178
CPC分类号： H04R29/001 , G10K11/178 , G10K2210/3028 , G10K2210/3055 , H04M9/082
摘要： 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).

2. 发明申请

US20150165983A1 Mounting a Microphone on a Vehicle Headliner 有权
标题翻译：将麦克风安装在车顶车顶上
公开(公告)号：US20150165983A1
公开(公告)日：2015-06-18
申请号：US14105653
申请日：2013-12-13
申请人： Bose Corporation
发明人： Davis Y. Pan , Bradford Kyle Subat
IPC分类号： B60R11/02 , H04R1/02
CPC分类号： B60R11/0247 , B60R2011/0028 , B60R2011/0059 , H04R1/08 , H04R2410/05 , H04R2499/13
摘要： A headliner assembly for a vehicle includes a headliner and a microphone. The headliner is configured for attachment to the vehicle such that the headliner separates a passenger cabin of the vehicle from a roof panel of the vehicle and such that a first surface of the headliner faces the roof panel, and an opposite, second surface of the headliner faces the passenger cabin. The microphone is mounted along the second surface of the headliner such that, when installed in the vehicle, the headliner is disposed between the microphone and the roof panel.
摘要翻译：一种用于车辆的顶篷组件包括头架和麦克风。顶篷被构造成用于附接到车辆，使得车顶篷将车辆的客舱与车辆的车顶板分开，并使车顶板的第一表面面向车顶板，并且车顶衬板的相对的第二表面面对客舱。麦克风沿着顶篷的第二表面安装，使得当安装在车辆中时，顶篷被布置在麦克风和屋顶面板之间。

3. 发明申请

US20200298865A1 Vehicle Environmental Controlling 审中-公开
公开(公告)号：US20200298865A1
公开(公告)日：2020-09-24
申请号：US16823700
申请日：2020-03-19
申请人： Bose Corporation
发明人： Davis Y. Pan , David S. Andreasen
IPC分类号： B60W40/09 , B60W50/00 , G06K9/00 , B60H1/00 , B60R11/04
摘要： Systems and methods for controlling an environment of a vehicle receive information about a characteristic of at least one of the vehicle's operation, the vehicle's location, and an operator of the vehicle. The information is analyzed to assess a driving condition. An environmental setting of the vehicle is adjusted based upon the assessed driving condition.

4. 发明授权

US09729966B2 Active noise reduction engine speed determining 有权
公开(公告)号：US09729966B2
公开(公告)日：2017-08-08
申请号：US14812560
申请日：2015-07-29
申请人： Bose Corporation
发明人： Davis Y. Pan
IPC分类号： G10K11/16 , A61F11/00 , H03B29/00 , H04R3/00 , G10K11/178
CPC分类号： H04R3/002 , G10K11/178 , G10K11/17854 , G10K11/17883 , G10K11/17885 , G10K2210/1282
摘要： An active noise reduction system using adaptive filters. A method of operation the active noise reduction system includes smoothing a stream of leakage factors. The frequency of a noise reduction signal may be related to the engine speed of an engine associated with the system within which the active noise reduction system is operated. The engine speed signal may be a high latency signal and may be obtained by the active noise reduction system over audio entertainment circuitry.

5. 发明申请

US20150334490A1 ACTIVE NOISE REDUCTION ENGINE SPEED DETERMINING 有权
标题翻译：主动减噪发动机速度测定
公开(公告)号：US20150334490A1
公开(公告)日：2015-11-19
申请号：US14812560
申请日：2015-07-29
申请人： Bose Corporation
发明人： Davis Y. Pan
IPC分类号： H04R3/00
CPC分类号： H04R3/002 , G10K11/178 , G10K11/17854 , G10K11/17883 , G10K11/17885 , G10K2210/1282
摘要： An active noise reduction system using adaptive filters. A method of operation the active noise reduction system includes smoothing a stream of leakage factors. The frequency of a noise reduction signal may be related to the engine speed of an engine associated with the system within which the active noise reduction system is operated. The engine speed signal may be a high latency signal and may be obtained by the active noise reduction system over audio entertainment circuitry.
摘要翻译：使用自适应滤波器的有源降噪系统。一种主动降噪系统的操作方法包括平滑泄漏因子流。噪声降低信号的频率可以与与主动降噪系统所在的系统相关联的发动机的发动机转速相关。发动机速度信号可以是高延迟信号，并且可以通过音频娱乐电路上的主动降噪系统获得。

6. 发明授权

US09177542B2 Motor vehicle adaptive feed-forward noise reduction 有权
标题翻译：机动车适应性前馈降噪
公开(公告)号：US09177542B2
公开(公告)日：2015-11-03
申请号：US13853265
申请日：2013-03-29
申请人： Bose Corporation
发明人： Davis Y. Pan
IPC分类号： G10K11/16 , G10K11/178
CPC分类号： G10K11/16 , G10K11/17883 , G10K2210/128 , G10K2210/3027 , G10K2210/3028 , G10K2210/511
摘要： 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.
摘要翻译：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。

7. 发明授权

US10123141B2 Double-talk detection for acoustic echo cancellation 有权
公开(公告)号：US10123141B2
公开(公告)日：2018-11-06
申请号：US14940495
申请日：2015-11-13
申请人： Bose Corporation
发明人： Davis Y. Pan
IPC分类号： H04R29/00 , H04M9/08 , G10K11/178
摘要： 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).

8. 发明申请

US20150063582A1 Engine Harmonic Cancellation System Afterglow Mitigation 有权
标题翻译：发动机谐波消除系统余辉减轻
公开(公告)号：US20150063582A1
公开(公告)日：2015-03-05
申请号：US14016561
申请日：2013-09-03
申请人： Bose Corporation
发明人： Davis Y. Pan
IPC分类号： G10K11/178
CPC分类号： G10K11/178 , G10K11/17823 , G10K11/17833 , G10K11/17854 , G10K11/17883 , G10K2210/121 , G10K2210/1282 , G10K2210/3016 , G10K2210/3035 , G10K2210/3037 , G10K2210/3053
摘要： 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.
摘要翻译：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速度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噪声降低信号，其输出被引导以减少发动机噪声，其中系数值为涉及自适应滤波器泄漏因子。监视与车辆发动机运转有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。

9. 发明申请

US20140294189A1 Motor Vehicle Adaptive Feed-Forward Noise Reduction 有权
标题翻译：汽车自适应前馈降噪
公开(公告)号：US20140294189A1
公开(公告)日：2014-10-02
申请号：US13853265
申请日：2013-03-29
申请人： Bose Corporation
发明人： Davis Y. Pan
IPC分类号： G10K11/16
CPC分类号： G10K11/16 , G10K11/17883 , G10K2210/128 , G10K2210/3027 , G10K2210/3028 , G10K2210/511
摘要： 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.
摘要翻译：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。

10. 发明授权

US12033657B2 Signal component estimation using coherence 有权
公开(公告)号：US12033657B2
公开(公告)日：2024-07-09
申请号：US17607649
申请日：2020-04-30
申请人： Bose Corporation
发明人： Shiufun Cheung , Zukui Song , Cristian Marius Hera , Davis Y. Pan
IPC分类号： G10L25/21 , G10L21/0232 , H04R3/04 , G10L21/0208 , G10L21/0216
CPC分类号： G10L25/21 , G10L21/0232 , H04R3/04 , G10L2021/02082 , G10L2021/02163
摘要： Systems, methods, and machine-readable storage devices that receive an input signal representing audio captured using a microphone. The input signal includes portions that represent acoustic output from one or more audio sources, and a portion that represents other acoustic energy in the environment. A frequency domain representation of the input signal is iteratively modified to substantially reduce effects due to all but a selected one of the portions, from which an estimate of the power spectral density, PSD, of the selected portion is determined. Based upon the estimated PSD a noise or echo component is reduced, or a replacement noise is provided. The iterative modification involves a diagonalization of the cross-spectral density matrix to remove content coherent with a first audio input from the auto and cross-spectra of other signals.

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