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11. 发明申请

WO2015160477A1 FREQUENCY-SHAPED NOISE-BASED ADAPTATION OF SECONDARY PATH ADAPTIVE RESPONSE IN NOISE-CANCELING PERSONAL AUDIO DEVICES 审中-公开
标题翻译：噪声消除个人音频设备中基于噪声的基于噪声的二次路自适应响应的适应
公开(公告)号：WO2015160477A1
公开(公告)日：2015-10-22
申请号：PCT/US2015/022113
申请日：2015-03-24
申请人： CIRRUS LOGIC, INC.
发明人： LU, Yang , ZHOU, Dayong , LI, Ning
IPC分类号： G10K11/178 , H04R1/10 , H04R3/00
CPC分类号： H04R3/002 , G10K11/178 , G10K11/17817 , G10K11/17854 , G10K11/17881 , G10K11/17885 , G10K2210/108 , G10K2210/1081 , G10K2210/3028 , G10K2210/3049 , G10K2210/3056 , H04R1/08 , H04R1/1083 , H04R3/005 , H04R2410/05 , H04R2460/01
摘要： A personal audio device includes an adaptive noise canceling (ANC) circuit that adaptively generates an anti-noise signal from a reference microphone signal and injects the anti-noise signal into the speaker or other transducer output to cause cancellation of ambient audio sounds. An error microphone is also provided proximate the speaker to provide an error signal indicative of the effectiveness of the noise cancellation. A secondary path estimating adaptive filter is used to estimate the electro-acoustical path from the noise canceling circuit through the transducer so that source audio can be removed from the error signal. Noise is injected so that the adaptation of the secondary path estimating adaptive filter can be maintained, irrespective of the presence and amplitude of the source audio. The noise is shaped by a noise shaping filter that has a response controlled in conformity with at least one parameter of the secondary path response.
摘要翻译：个人音频设备包括自适应噪声消除（ANC）电路，其自适应地从参考麦克风信号产生抗噪声信号，并将抗噪声信号注入扬声器或其他换能器输出以引起环境音频声音的消除。在扬声器附近还提供误差麦克风以提供指示噪声消除的有效性的误差信号。二次路径估计自适应滤波器用于估计通过换能器的噪声消除电路的电声路径，从而可以从误差信号中去除源音频。噪声被注入，使得可以维持二次路径估计自适应滤波器的适应，而不管源音频的存在和幅度如何。噪声通过噪声整形滤波器成形，该滤波器的响应受到与次要路径响应的至少一个参数相一致的控制。

12. 发明申请

WO2015038257A3 SYSTEMS AND METHODS FOR DETECTION OF LOAD IMPEDANCE OF A TRANSDUCER DEVICE COUPLED TO AN AUDIO DEVICE 审中-公开
公开(公告)号：WO2015038257A3
公开(公告)日：2015-05-28
申请号：PCT/US2014049760
申请日：2014-08-05
申请人： CIRRUS LOGIC INC
发明人： ILANGO ANAND , ALLEN DANIEL JOHN , SATOSKAR ANIRUDDHA
IPC分类号： H03F1/02 , H03F3/181 , H03F3/52
CPC分类号： H04R3/007 , G10K11/17854 , G10K11/17881 , G10K11/17885 , G10K2210/1081 , G10K2210/30232 , G10K2210/3045 , G10K2210/3049 , H03F1/0211 , H03F1/0227 , H03F1/52 , H03F3/181 , H03F3/183 , H03F3/185 , H03F3/52 , H03F2200/03 , H03F2200/462 , H03F2200/471 , H04R5/04 , H04R29/001 , H04R2420/05
摘要： In accordance with systems and methods of the present disclosure, an audio device may include an electrical terminal, an audio circuit, and a transducer load detection circuit. The electrical terminal may couple a transducer device to the audio device. The audio circuit may generate an analog audio signal, wherein the analog audio signal is coupled to the electrical terminal. The transducer load detection circuit may detect a load impedance of the transducer device when the transducer device is coupled to the audio device from characteristics measured at the electrical terminal.

13. 发明申请

WO2013169436A9 NOISE BURST ADAPTATION OF SECONDARY PATH ADAPTIVE RESPONSE IN NOISE-CANCELING PERSONAL AUDIO DEVICES 审中-公开
标题翻译：噪声消除个人音频设备中二次路径自适应响应的噪声突变修正
公开(公告)号：WO2013169436A9
公开(公告)日：2014-07-03
申请号：PCT/US2013036531
申请日：2013-04-15
申请人： CIRRUS LOGIC INC
发明人： HENDRIX JON D , ALDERSON JEFFREY , MILLER ANTONIO JOHN , LU YANG
IPC分类号： G10K11/178
CPC分类号： G10K11/002 , G10K11/17817 , G10K11/1788 , G10K2210/108 , G10K2210/3049
摘要： A personal audio device, such as a wireless telephone, generates an anti-noise signal from an error microphone signal and injects the anti-noise signal into the speaker or other transducer output to cause cancellation of ambient audio sounds. The error microphone is also provided proximate the speaker to provide an error signal indicative of the effectiveness of the noise cancellation. A secondary path estimating adaptive filter is used to estimate the electro-acoustical path from the noise canceling circuit through the transducer so that source audio can be removed from the error signal. Noise bursts are injected intermittently and the adaptation of the secondary path estimating adaptive filter controlled, so that the secondary path estimate can be maintained irrespective of the presence and amplitude of the source audio.
摘要翻译：诸如无线电话之类的个人音频设备从误差麦克风信号生成抗噪声信号，并将抗噪声信号注入到扬声器或其他换能器输出中以导致环境音频声音的消除。误差麦克风还靠近扬声器提供，以提供指示噪声消除的有效性的误差信号。使用次级路径估计自适应滤波器来估计来自噪声消除电路通过换能器的电声路径，使得可以从误差信号中去除源音频。噪声突发间歇性地被注入，并且二级路径估计自适应滤波器的自适应被控制，从而无论源音频的存在和幅度如何都可以保持次级路径估计。

14. 发明申请

WO2013169436A3 NOISE BURST ADAPTATION OF SECONDARY PATH ADAPTIVE RESPONSE IN NOISE-CANCELING PERSONAL AUDIO DEVICES 审中-公开
标题翻译：噪音消除个人音乐设备中二次路自适应响应的噪声调整
公开(公告)号：WO2013169436A3
公开(公告)日：2014-05-22
申请号：PCT/US2013036531
申请日：2013-04-15
申请人： CIRRUS LOGIC INC
发明人： HENDRIX JON D , ALDERSON JEFFREY , MILLER ANTONIO JOHN , LU YANG
IPC分类号： G10K11/178
CPC分类号： G10K11/002 , G10K11/17817 , G10K11/1788 , G10K2210/108 , G10K2210/3049
摘要： A personal audio device, such as a wireless telephone, generates an anti-noise signal from an error microphone signal and injects the anti-noise signal into the speaker or other transducer output to cause cancellation of ambient audio sounds. The error microphone is also provided proximate the speaker to provide an error signal indicative of the effectiveness of the noise cancellation. A secondary path estimating adaptive filter is used to estimate the electro-acoustical path from the noise canceling circuit through the transducer so that source audio can be removed from the error signal. Noise bursts are injected intermittently and the adaptation of the secondary path estimating adaptive filter controlled, so that the secondary path estimate can be maintained irrespective of the presence and amplitude of the source audio.
摘要翻译：诸如无线电话的个人音频设备从误差麦克风信号产生抗噪声信号，并将抗噪声信号注入到扬声器或其它换能器输出中以引起环境声音的消除。误差麦克风也靠近扬声器提供，以提供指示噪声消除的有效性的误差信号。二次路径估计自适应滤波器用于估计通过换能器的噪声消除电路的电声路径，从而可以从误差信号中去除源音频。噪声突发被间歇地注入，并且二次路径估计自适应滤波器的适配被控制，使得可以维持辅助路径估计，而不管源音频的存在和幅度如何。

15. 发明申请

WO9409480A2 ADAPTIVE CONTROL SYSTEM 审中-公开
标题翻译：自适应控制系统
公开(公告)号：WO9409480A2
公开(公告)日：1994-04-28
申请号：PCT/GB9302169
申请日：1993-10-21
申请人： LOTUS CAR , STOTHERS IAN , MCDONALD ANTHONY MALCOLM , HUTCHINS STEPHEN MARK , BOWLES COLIN LEONARD
发明人： STOTHERS IAN , MCDONALD ANTHONY MALCOLM , HUTCHINS STEPHEN MARK , BOWLES COLIN LEONARD
IPC分类号： G10K11/178 , G10K11/16
CPC分类号： G10K11/178 , G10K2210/30232 , G10K2210/3025 , G10K2210/3037 , G10K2210/30391 , G10K2210/3046 , G10K2210/3049 , G10K2210/3057 , G10K2210/503 , G10K2210/511
摘要： An adaptive control system for reducing undesired signals comprises a processor (36) to generate secondary signals which are provided to secondary sources (37). Sensors (42) provide at least one residual signal to said processor (36) which is indicative of the interference between the undesired and secondary signals. The processor (36) is operative to adjust the secondary signals using the residual signals to reduce the residual signals. If the adaptive control system operates erroneously or there is a fault this is indicated. Such faults can be detected by increasing and decreasing the secondary signals and detecting whether there is a corresponding increase and decrease in the residual signals. Also, the rate of change of the amplitude of the secondary signals and the rate of change of the frequency of the reference signal can be monitored to determine whether a fault condition exists. Also the impulse response or transfer function of the system can be monitored to determine a fault condition.
摘要翻译：用于减少不需要的信号的自适应控制系统包括产生提供给次级源（37）的次级信号的处理器（36）。传感器（42）向所述处理器（36）提供至少一个残留信号，其指示不期望信号和辅助信号之间的干扰。处理器（36）可操作以使用残余信号来调整辅助信号以减少残余信号。如果自适应控制系统错误地运行，或者指出故障。可以通过增加和减少二次信号并检测残留信号是否有相应的增减来检测这种故障。此外，可以监视次级信号的幅度的变化率和参考信号的频率的变化率，以确定是否存在故障状况。此外，可以监视系统的脉冲响应或传递函数以确定故障状况。

16. 发明申请

WO2016116330A1 SPEECH REPRODUCTION DEVICE CONFIGURED FOR MASKING REPRODUCED SPEECH IN A MASKED SPEECH ZONE 审中-公开
标题翻译：用于在被屏蔽的语音区域中显示复制语音的语音再现设备
公开(公告)号：WO2016116330A1
公开(公告)日：2016-07-28
申请号：PCT/EP2016/050515
申请日：2016-01-13
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN-NUERNBERG
发明人： WALTHER, Andreas , SCHNEIDER, Martin , HABETS, Emanuel , HELLMUTH, Oliver
IPC分类号： G10K11/175
CPC分类号： G10K11/178 , G10K11/175 , G10K2210/103 , G10K2210/111 , G10K2210/3049 , G10K2210/509 , G10L2021/02166
摘要： The invention relates to a speech reproduction device for reproducing speech based on a received speech signal so that the reproduced speech is intelligible in a clear speech zone and unintelligible in a masked speech zone, the speech reproduction system comprising: an audio processing module configured for receiving the speech signal; a set of speech loudspeakers configured for reproducing the speech based on one or more speech loudspeaker signals; and a set of masking sound loudspeakers configured for producing a masking sound based on one or more masking sound loudspeaker signals, wherein the masking sound masks the speech in the masked speech zone; wherein the audio processing module comprises a speech signal analysis module configured for producing one or more analysis signals based on spectral and/or temporal characteristics of the speech signal; wherein the audio processing module comprises a masking sound generator configured for producing one or more masking sound signals based on the one or more analysis signals.
摘要翻译：本发明涉及一种用于基于接收到的语音信号再现语音的语音再现装置，使得再现的语音在清晰的语音区域中是可理解的，并且在掩蔽的语音区域中是不可理解的，所述语音再现系统包括：音频处理模块，语音信号; 配置用于基于一个或多个语音扬声器信号再现语音的一组语音扬声器; 以及一组屏蔽声音扬声器，其被配置用于基于一个或多个掩蔽声音扬声器信号产生掩蔽声音，其中所述掩蔽声掩蔽所述蒙版语音区域中的所述语音; 其中所述音频处理模块包括被配置用于基于所述语音信号的频谱和/或时间特征产生一个或多个分析信号的语音信号分析模块; 其中所述音频处理模块包括被配置为基于所述一个或多个分析信号产生一个或多个掩蔽声音信号的掩蔽声音发生器。

17. 发明申请

WO2015038257A2 SYSTEMS AND METHODS FOR DETECTION OF LOAD IMPEDANCE OF A TRANSDUCER DEVICE COUPLED TO AN AUDIO DEVICE 审中-公开
公开(公告)号：WO2015038257A2
公开(公告)日：2015-03-19
申请号：PCT/US2014/049760
申请日：2014-08-05
申请人： CIRRUS LOGIC, INC.
发明人： ILANGO, Anand , ALLEN, Daniel John , SATOSKAR, Aniruddha
IPC分类号： H03F1/02
CPC分类号： H04R3/007 , G10K11/17854 , G10K11/17881 , G10K11/17885 , G10K2210/1081 , G10K2210/30232 , G10K2210/3045 , G10K2210/3049 , H03F1/0211 , H03F1/0227 , H03F1/52 , H03F3/181 , H03F3/183 , H03F3/185 , H03F3/52 , H03F2200/03 , H03F2200/462 , H03F2200/471 , H04R5/04 , H04R29/001 , H04R2420/05
摘要： In accordance with systems and methods of the present disclosure, an audio device may include an electrical terminal, an audio circuit, and a transducer load detection circuit. The electrical terminal may couple a transducer device to the audio device. The audio circuit may generate an analog audio signal, wherein the analog audio signal is coupled to the electrical terminal. The transducer load detection circuit may detect a load impedance of the transducer device when the transducer device is coupled to the audio device from characteristics measured at the electrical terminal.

18. 发明申请

WO2015038255A1 SYSTEMS AND METHODS FOR ADAPTIVE NOISE CANCELLATION BY ADAPTIVELY SHAPING INTERNAL WHITE NOISE TO TRAIN A SECONDARY PATH 审中-公开
标题翻译：适应性噪声消除的系统和方法通过适应性形成内部白噪声来训练次级路径
公开(公告)号：WO2015038255A1
公开(公告)日：2015-03-19
申请号：PCT/US2014/049600
申请日：2014-08-04
申请人： CIRRUS LOGIC, INC.
发明人： MILANI, Ali Abdollahzadeh
IPC分类号： G10K11/178
CPC分类号： G10K11/1788 , G10K11/17854 , G10K11/17881 , G10K11/17885 , G10K2210/1081 , G10K2210/30232 , G10K2210/3045 , G10K2210/3049 , H03F1/0211 , H03F3/181 , H03F3/52
摘要： A processing circuit may include: (i) an adaptive filter having a response that generates an anti-noise signal from a reference microphone signal, wherein the response is shaped in conformity with the reference microphone signal and a playback corrected error; (ii) a secondary path estimate filter configured to model an electro-acoustic path of a source audio signal and having a response that generates a secondary path estimate from the source audio signal; (iii) a secondary coefficient control block that shapes the response of the secondary path estimate filter in conformity with the source audio signal and the playback corrected error by adapting the response of the secondary path estimate filter to minimize the playback corrected error; and (iv) a noise injection portion for injecting a noise signal into the source audio signal, wherein the noise signal is shaped based on the playback corrected error.
摘要翻译：处理电路可以包括：（i）自适应滤波器，其具有从参考麦克风信号产生抗噪声信号的响应，其中所述响应根据所述参考麦克风信号和回放校正误差成形; （ii）二次路径估计滤波器，被配置为对源音频信号的电声路径建模并具有从源音频信号产生次路径估计的响应; （iii）次要系数控制块，其通过适应次要路径估计滤波器的响应来最小化重放校正误差来对根据源音频信号和回放校正误差的二次路径估计滤波器的响应进行调整; 以及（iv）用于将噪声信号注入到源音频信号中的噪声注入部分，其中基于重放校正误差对噪声信号进行成形。

19. 发明申请

WO2014172005A1 SYSTEMS AND METHODS FOR ADAPTIVE NOISE CANCELLATION INCLUDING DYNAMIC BIAS OF COEFFICIENTS OF AN ADAPTIVE NOISE CANCELLATION SYSTEM 审中-公开
标题翻译：自适应噪声消除系统和方法，包括自适应噪声消除系统系统的动态偏差
公开(公告)号：WO2014172005A1
公开(公告)日：2014-10-23
申请号：PCT/US2014/017343
申请日：2014-02-20
申请人： CIRRUS LOGIC, INC.
发明人： HENDRIX, Jon, D. , LI, Ning , ALDERSON, Jeffrey, D.
IPC分类号： H04R1/10 , G10K11/178
CPC分类号： H04R5/033 , G10K11/178 , G10K2210/108 , G10K2210/1081 , G10K2210/3026 , G10K2210/3028 , G10K2210/3048 , G10K2210/3049 , H04R1/1083 , H04R2410/05
摘要： In accordance with method and systems of the present disclosure, a processing circuit may implement an adaptive filter having a response that generates the anti-noise signal from the reference microphone signal to reduce the presence of the ambient audio sounds heard by the listener, a coefficient control block that shapes the response of the adaptive filter in conformity with the error microphone signal and the reference microphone signal by adapting the response of the adaptive filter to minimize the ambient audio sounds in the error microphone signal, and a coefficient bias control block which biases coefficients of the coefficient control block towards zero in a range of frequencies outside of a frequency response of the source audio signal.
摘要翻译：根据本公开的方法和系统，处理电路可以实现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，以减少听众听到的环境音频声音的存在，系数控制块，其通过调整自适应滤波器的响应来最小化误差麦克风信号中的环境音频声音，使自适应滤波器的响应与误差麦克风信号和参考麦克风信号一致，以及偏差的系数偏置控制块系数控制块的系数在源音频信号的频率响应之外的频率范围内朝向零。

20. 发明申请

WO2011036742A1 騒音制御装置及び騒音制御方法审中-公开
标题翻译：噪声控制装置和噪声控制方法
公开(公告)号：WO2011036742A1
公开(公告)日：2011-03-31
申请号：PCT/JP2009/066506
申请日：2009-09-24
申请人：三菱電機株式会社 , 藤原奨
发明人：藤原　奨
IPC分类号： G10K11/178 , G10K11/16
CPC分类号： G10K11/178 , G10K2210/112 , G10K2210/3027 , G10K2210/3045 , G10K2210/3046 , G10K2210/3048 , G10K2210/3049
摘要：　消音領域の音響特性の変化に対応した消音制御を行うことのできる消音制御装置を提供する。　騒音源から発生される騒音信号を検出する一つ以上のリファレンスセンサーと、消音信号と同定信号を放射する一つ以上の放射音源と、騒音信号、消音信号、及び同定信号を検出するエラーセンサーと、エラーセンサーが検出した同定信号に基づいて、消音領域の音響特性を同定する同定手段と、リファレンスセンサーとエラーセンサーの検出結果に基づいて適応信号処理により消音信号を生成する消音生成手段と、を備え、同定手段は、放射音源が消音信号を放射中に、同定作業を行う。
摘要翻译：本发明提供一种消音控制装置，其能够响应于要被静音的区域的声学特性的变化而进行消音控制。噪声控制装置设置有一个或多个参考传感器，用于检测由噪声源产生的噪声信号，用于辐射消声信号的一个或多个声源和识别信号，用于检测噪声信号的误差传感器，消音信号以及识别信号，用于根据由误差传感器检测到的识别信号来识别要被静音的区域的声学特性的识别装置，以及用于通过自适应信号处理产生消音信号的消音信号产生装置，由参考传感器和误差传感器检测结果的基础，其中识别装置在声源辐射消声信号的同时进行识别操作。

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