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41. 发明申请

US20170154618A1 ACTIVE AIRBORNE NOISE ABATEMENT 有权
公开(公告)号：US20170154618A1
公开(公告)日：2017-06-01
申请号：US15237446
申请日：2016-08-15
申请人： Amazon Technologies, Inc.
发明人： Brian C. Beckman , Gur Kimchi
IPC分类号： G10K11/178 , G06N99/00 , B64C39/02
CPC分类号： G10K11/178 , B64C39/024 , B64C2201/024 , B64C2201/027 , B64C2201/108 , B64C2220/00 , G01S19/13 , G05D1/101 , G05D19/02 , G05D27/02 , G06N99/005 , G10K11/17823 , G10K11/17853 , G10K11/17873 , G10K2210/1281 , G10K2210/30231 , G10K2210/30351 , G10K2210/3038 , G10K2210/3045
摘要： Noises that are to be emitted by an aerial vehicle during operations may be predicted using one or more machine learning systems, algorithms or techniques. Anti-noises having equal or similar intensities and equal but out-of-phase frequencies may be identified and generated based on the predicted noises, thereby reducing or eliminating the net effect of the noises. The machine learning systems, algorithms or techniques used to predict such noises may be trained using emitted sound pressure levels observed during prior operations of aerial vehicles, as well as environmental conditions, operational characteristics of the aerial vehicles or locations of the aerial vehicles during such prior operations. Anti-noises may be identified and generated based on an overall sound profile of the aerial vehicle, or on individual sounds emitted by the aerial vehicle by discrete sources.

42. 发明授权

US09460701B2 Systems and methods for adaptive noise cancellation by biasing anti-noise level 有权
标题翻译：通过偏置抗噪声水平自适应噪声消除的系统和方法
公开(公告)号：US09460701B2
公开(公告)日：2016-10-04
申请号：US13943454
申请日：2013-07-16
申请人： Cirrus Logic, Inc.
发明人： Chin Huang Yong , Jeffrey D. Alderson
IPC分类号： A61F11/06 , G10K11/16 , G10K11/178
CPC分类号： G10K11/16 , G10K11/178 , G10K11/17817 , G10K11/17833 , G10K11/17881 , G10K11/17885 , G10K2210/1081 , G10K2210/3014 , G10K2210/3017 , G10K2210/3022 , G10K2210/3027 , G10K2210/30351
摘要： A processing circuit may comprise an adaptive filter having a response generating an anti-noise signal from a reference microphone signal, a secondary path estimate filter modeling an electro-acoustic path of a source audio signal, a biasing portion that generates a scaled anti-noise signal by applying a scaling factor and the response of the secondary path estimate filter to the anti-noise signal, and a coefficient control block that shapes the response of the adaptive filter in conformity with the reference microphone signal and a modified playback corrected error signal by adapting the response of the adaptive filter to minimize ambient audio sounds in the error microphone signal, wherein the playback corrected error is based on a difference between the error microphone signal and the source audio signal and the modified playback corrected error signal is based on a difference between the playback corrected error signal and the scaled anti-noise signal.
摘要翻译：处理电路可以包括具有从参考麦克风信号产生抗噪声信号的响应的自适应滤波器，对源音频信号的电声路径建模的次路径估计滤波器，产生缩放抗噪声的偏置部分通过对抗噪声信号应用缩放因子和次路径估计滤波器的响应的信号;以及系数控制块，其根据参考麦克风信号和经修改的重放校正误差信号对自适应滤波器的响应进行整形，适应自适应滤波器的响应以最小化误差麦克风信号中的环境音频声音，其中重放校正误差基于误差麦克风信号和源音频信号之间的差异，并且经修改的重放校正误差信号基于差在重放校正误差信号和缩放的抗噪声信号之间。

43. 发明申请

US20160196816A1 DOWNLINK TONE DETECTION AND ADAPTATION OF A SECONDARY PATH RESPONSE MODEL IN AN ADAPTIVE NOISE CANCELING SYSTEM 有权
公开(公告)号：US20160196816A1
公开(公告)日：2016-07-07
申请号：US15070564
申请日：2016-03-15
申请人： Cirrus Logic, Inc.
发明人： Dayong Zhou , Yang Lu , Jon D. Hendrix , Jeffrey Alderson , Antonio John Miller , Chin Yong , Gautham Devendra Kamath
IPC分类号： G10K11/175
CPC分类号： G10K11/175 , G10K11/16 , G10K11/178 , G10K2210/00 , G10K2210/108 , G10K2210/3011 , G10K2210/30231 , G10K2210/3028 , G10K2210/30351 , G10K2210/503
摘要： An adaptive noise canceling (ANC) circuit adaptively generates an anti-noise signal from a reference microphone signal that is injected into the speaker or other transducer output to cause cancellation of ambient audio sounds. An error microphone proximate the speaker provides an error signal. A secondary path estimating adaptive filter estimates the electro-acoustical path from the noise canceling circuit through the transducer so that source audio can be removed from the error signal. Tones in the source audio, such as remote ringtones, present in downlink audio during initiation of a telephone call, are detected by a tone detector using accumulated tone persistence and non-silence hangover counting, and adaptation of the secondary path estimating adaptive filter is halted to prevent adapting to the tones. Adaptation of the adaptive filters is then sequenced so any disruption of the secondary path adaptive filter response is removed before allowing the anti-noise generating filter to adapt.

44. 发明授权

US09318090B2 Downlink tone detection and adaptation of a secondary path response model in an adaptive noise canceling system 有权
标题翻译：自适应噪声消除系统中二次路径响应模型的下行链路音检测和自适应
公开(公告)号：US09318090B2
公开(公告)日：2016-04-19
申请号：US13729141
申请日：2012-12-28
申请人： Cirrus Logic, Inc.
发明人： Dayong Zhou , Yang Lu , Jon D. Hendrix , Jeffrey Alderson , Antonio John Miller , Chin Yong , Gautham Devendra Kamath
IPC分类号： G10K11/16 , H03B29/00 , G10K11/178
CPC分类号： G10K11/175 , G10K11/16 , G10K11/178 , G10K2210/00 , G10K2210/108 , G10K2210/3011 , G10K2210/30231 , G10K2210/3028 , G10K2210/30351 , G10K2210/503
摘要： An adaptive noise canceling (ANC) circuit adaptively generates an anti-noise signal from a reference microphone signal that is injected into the speaker or other transducer output to cause cancellation of ambient audio sounds. An error microphone proximate the speaker provides an error signal. A secondary path estimating adaptive filter estimates the electro-acoustical path from the noise canceling circuit through the transducer so that source audio can be removed from the error signal. Tones in the source audio, such as remote ringtones, present in downlink audio during initiation of a telephone call, are detected by a tone detector using accumulated tone persistence and non-silence hangover counting, and adaptation of the secondary path estimating adaptive filter is halted to prevent adapting to the tones. Adaptation of the adaptive filters is then sequenced so any disruption of the secondary path adaptive filter response is removed before allowing the anti-noise generating filter to adapt.
摘要翻译：自适应噪声消除（ANC）电路自适应地从注入扬声器或其它换能器输出的参考麦克风信号产生抗噪声信号，以引起环境声音的消除。靠近扬声器的错误麦克风提供了错误信号。二次路径估计自适应滤波器估计从噪声消除电路通过换能器的电声路径，从而可以从误差信号中去除源音频。在开始电话呼叫期间存在于下行链路音频中的源音频中的音调（例如远程铃声）由使用累积的音调持续性和非静音宿醉计数的音调检测器检测，并且停止辅助路径估计自适应滤波器的适配以防止适应色调。然后对自适应滤波器的适应进行排序，因此在允许抗噪声产生滤波器适应之前，去除二次路径自适应滤波器响应的任何中断。

45. 发明申请

US20160035341A1 SYSTEM AND METHOD OF MICROPHONE PLACEMENT FOR NOISE ATTENUATION 有权
公开(公告)号：US20160035341A1
公开(公告)日：2016-02-04
申请号：US14449325
申请日：2014-08-01
申请人： Bose Corporation
发明人： David Warkentin , Ryan Struzik , Wade Torres , Paul T. Bender , David Easterbrook
IPC分类号： G10K11/178
CPC分类号： G10K11/1786 , G10K11/178 , G10K11/17857 , G10K11/17873 , G10K2210/1282 , G10K2210/30351 , G10K2210/3055 , G10K2210/3221 , G10K2210/3226 , H04R1/1083 , H04R2227/001 , H04R2410/01 , H04R2499/13
摘要： A method and system for attenuating noise comprises identifying a location in an area at which sound emitted from one or more speakers has acoustic characteristics that are substantially similar in measure to corresponding acoustic characteristics of the emitted sound at a location approximated to be near an ear of an occupant of the area. A microphone, which may be a virtual microphone, is disposed at the identified location. The microphone detects sound at the identified location. In response to the sound detected by the microphone, the one or more speakers emit a noise-canceling audio signal adapted to attenuate one or more frequencies in the sound detected by the microphone.

46. 发明授权

US08817999B2 Networked sound masking and paging system 有权
标题翻译：网络声音屏蔽和寻呼系统
公开(公告)号：US08817999B2
公开(公告)日：2014-08-26
申请号：US10646734
申请日：2003-08-25
申请人： Klaus Moeller , Niklas Moeller , Mircea Rusu , Carl Derla
发明人： Klaus Moeller , Niklas Moeller , Mircea Rusu , Carl Derla
IPC分类号： H04R3/02 , H04R27/00
CPC分类号： G10K11/175 , G10K2210/3014 , G10K2210/30351 , G10K2210/3049 , H04K3/42 , H04K3/43 , H04K3/45 , H04K3/825 , H04K2203/12 , H04K2203/34 , H04M11/027 , H04R3/002 , H04R27/00 , H05K5/0247
摘要： A sound masking system for shaping the ambient noise level in a physical environment. The sound masking system comprises a networked and distributed system having a number of master units coupled together and to a control unit. One or more of the master units may include satellite sound masking units which function to reproduce the sound masking signal generated by the master sound masking unit. Each of the master units is addressable over the network by the control unit enabling the control unit to program the contour, spectral band, and gain characteristics of the sound masking output signal. The system may also include a remote control unit which provides the capability to tune and adjust each master sound masking unit in situ without requiring physical access through the ceiling installation. According to another aspect, there is a networked paging system with individually addressable speaker units for announcing a paging signal selected from a number of paging signals.
摘要翻译：用于在物理环境中整形环境噪声水平的声音遮蔽系统。声音掩蔽系统包括具有耦合在一起的多个主单元和控制单元的网络和分布式系统。一个或多个主单元可以包括用于再现由主声音掩蔽单元生成的声音屏蔽信号的卫星声音屏蔽单元。每个主单元可由控制单元通过网络寻址，使得控制单元能够编程声屏蔽输出信号的轮廓，频谱带和增益特性。该系统还可以包括遥控单元，该遥控单元提供能够在现场调整和调整每个主声音屏蔽单元的能力，而不需要通过天花板安装进行物理访问。根据另一方面，存在具有单独可寻址的扬声器单元的联网寻呼系统，用于通知从多个寻呼信号中选择的寻呼信号。

47. 发明申请

US20130301848A1 DOWNLINK TONE DETECTION AND ADAPTATION OF A SECONDARY PATH RESPONSE MODEL IN AN ADAPTIVE NOISE CANCELING SYSTEM 有权
标题翻译：自适应噪声消除系统中的二次路径响应模式的下行音调检测和适应
公开(公告)号：US20130301848A1
公开(公告)日：2013-11-14
申请号：US13729141
申请日：2012-12-28
申请人： CIRRUS LOGIC, INC.
发明人： Dayong Zhou , Yang Lu , Jon D. Hendrix , Jeffrey Alderson , Antonio John Miller , Chin Yong , Gautham Devendra Kamath
IPC分类号： G10K11/16
CPC分类号： G10K11/175 , G10K11/16 , G10K11/178 , G10K2210/00 , G10K2210/108 , G10K2210/3011 , G10K2210/30231 , G10K2210/3028 , G10K2210/30351 , G10K2210/503
摘要： An adaptive noise canceling (ANC) circuit adaptively generates an anti-noise signal from a reference microphone signal that is injected into the speaker or other transducer output to cause cancellation of ambient audio sounds. An error microphone proximate the speaker provides an error signal. A secondary path estimating adaptive filter estimates the electro-acoustical path from the noise canceling circuit through the transducer so that source audio can be removed from the error signal. Tones in the source audio, such as remote ringtones, present in downlink audio during initiation of a telephone call, are detected by a tone detector using accumulated tone persistence and non-silence hangover counting, and adaptation of the secondary path estimating adaptive filter is halted to prevent adapting to the tones. Adaptation of the adaptive filters is then sequenced so any disruption of the secondary path adaptive filter response is removed before allowing the anti-noise generating filter to adapt.
摘要翻译：自适应噪声消除（ANC）电路自适应地从注入扬声器或其它换能器输出的参考麦克风信号产生抗噪声信号，以引起环境声音的消除。靠近扬声器的错误麦克风提供了错误信号。二次路径估计自适应滤波器估计从噪声消除电路通过换能器的电声路径，从而可以从误差信号中去除源音频。在开始电话呼叫期间存在于下行链路音频中的源音频中的音调（例如远程铃声）由使用累积的音调持续性和非静音宿醉计数的音调检测器检测，并且停止辅助路径估计自适应滤波器的适配以防止适应色调。然后对自适应滤波器的适应进行排序，因此在允许抗噪声产生滤波器适应之前，去除二次路径自适应滤波器响应的任何中断。

48. 发明授权

US06898290B1 Adaptive personal active noise reduction system 失效
标题翻译：自适应个人主动降噪系统
公开(公告)号：US06898290B1
公开(公告)日：2005-05-24
申请号：US09534731
申请日：2000-03-27
申请人： William Richard Saunders , Michael Allen Vaudrey
发明人： William Richard Saunders , Michael Allen Vaudrey
IPC分类号： G10K11/178 , A61F11/06 , G10K11/16 , H03B29/00
CPC分类号： G10K11/178 , G10K2210/10 , G10K2210/101 , G10K2210/108 , G10K2210/1081 , G10K2210/1082 , G10K2210/128 , G10K2210/1282 , G10K2210/3016 , G10K2210/3025 , G10K2210/3026 , G10K2210/3027 , G10K2210/3031 , G10K2210/3033 , G10K2210/30351 , G10K2210/3042 , G10K2210/3046 , G10K2210/3056 , G10K2210/3214 , G10K2210/3217 , G10K2210/3219 , G10K2210/3221 , G10K2210/3222 , G10K2210/506 , G10K2210/511 , H04R1/1083
摘要： An improved personal noise attenuation system which attenuates both tonal and broadband sound and which includes a spatially adjustable acousto-electric sensor and attenuation means including both feedback and feed forward components so as to provide a heteronomous attenuation and more complete active noise attenuation and the adjustable acousto-electric sensor is moved to exploit the changing physical characteristics of spatial silent zones in different noise fields.
摘要翻译：改进的个人噪声衰减系统，其衰减音调和宽带声音，并且其包括空间可调节的声电传感器和衰减装置，包括反馈和前馈分量，以便提供异质衰减和更完整的有源噪声衰减和可调声移动电力传感器以利用不同噪声场中空间无声区的不断变化的物理特性。

49. 发明申请

US20040131199A1 Networked sound masking and paging system 有权
标题翻译：网络声音屏蔽和寻呼系统
公开(公告)号：US20040131199A1
公开(公告)日：2004-07-08
申请号：US10646734
申请日：2003-08-25
申请人： 777388 ONTARIO LIMITED
发明人： Klaus Moeller , Niklas Moeller , Mircea Rusu , Carl Derla
IPC分类号： H04R003/02
CPC分类号： G10K11/175 , G10K2210/3014 , G10K2210/30351 , G10K2210/3049 , H04K3/42 , H04K3/43 , H04K3/45 , H04K3/825 , H04K2203/12 , H04K2203/34 , H04M11/027 , H04R3/002 , H04R27/00 , H05K5/0247
摘要： A sound masking system for shaping the ambient noise level in a physical environment. The sound masking system comprises a networked and distributed system having a number of master units coupled together and to a control unit. One or more of the master units may include satellite sound masking units which function to reproduce the sound masking signal generated by the master sound masking unit. Each of the master units is addressable over the network by the control unit enabling the control unit to program the contour, spectral band, and gain characteristics of the sound masking output signal. The system may also include a remote control unit which provides the capability to tune and adjust each master sound masking unit in situ without requiring physical access through the ceiling installation. According to another aspect, there is a networked paging system with individually addressable speaker units for announcing a paging signal selected from a number of paging signals.
摘要翻译：用于在物理环境中整形环境噪声水平的声音遮蔽系统。声音掩蔽系统包括具有耦合在一起的多个主单元和控制单元的网络和分布式系统。一个或多个主单元可以包括用于再现由主声音掩蔽单元生成的声音屏蔽信号的卫星声音屏蔽单元。每个主单元可由控制单元通过网络寻址，使得控制单元能够编程声屏蔽输出信号的轮廓，频谱带和增益特性。该系统还可以包括遥控单元，该遥控单元提供能够在现场调整和调整每个主声音屏蔽单元的能力，而不需要通过天花板安装进行物理访问。根据另一方面，存在具有单独可寻址的扬声器单元的联网寻呼系统，用于通知从多个寻呼信号中选择的寻呼信号。

50. 发明申请

US20020150261A1 Networked sound masking system 有权
标题翻译：网络化声屏蔽系统
公开(公告)号：US20020150261A1
公开(公告)日：2002-10-17
申请号：US09791802
申请日：2001-02-26
发明人： Klaus R. Moeller , Niklas Moeller , Mircea Rusu , Carl Derla
IPC分类号： H04R003/02 , H04B015/00
CPC分类号： G10K11/175 , G10K2210/3014 , G10K2210/30351 , G10K2210/3049 , H04K3/42 , H04K3/43 , H04K3/45 , H04K3/825 , H04K2203/12 , H04K2203/34 , H04M11/027 , H04R3/002 , H04R27/00 , H05K5/0247
摘要： A sound masking system for shaping the ambient noise level in a physical environment. The sound masking system comprises a networked and distributed system having a number of master units coupled together and to a control unit. One or more of the master units may include satellite sound masking units which function to reproduce the sound masking signal generated by the master sound masking unit. Each of the master units is addressable over the network by the control unit enabling the control unit to program the contour, spectral band, and gain characteristics of the sound masking output signal. The system may also include a remote control unit which provides the capability to tune and adjust each master sound masking unit in situ without requiring physical access through the ceiling installation.
摘要翻译：用于在物理环境中整形环境噪声水平的声音遮蔽系统。声音掩蔽系统包括具有耦合在一起的多个主单元和控制单元的网络和分布式系统。一个或多个主单元可以包括用于再现由主声音掩蔽单元生成的声音屏蔽信号的卫星声音屏蔽单元。每个主单元可由控制单元通过网络寻址，使得控制单元能够编程声屏蔽输出信号的轮廓，频谱带和增益特性。该系统还可以包括遥控单元，该遥控单元提供能够在现场调整和调整每个主声音屏蔽单元的能力，而不需要通过天花板安装进行物理访问。

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