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31. 发明申请

WO2017050515A1 NOISE AND VIBRATION SENSING 审中-公开
标题翻译：噪声和振动感测
公开(公告)号：WO2017050515A1
公开(公告)日：2017-03-30
申请号：PCT/EP2016/070030
申请日：2016-08-25
申请人： HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH
发明人： PFAFFINGER, Gerhard
IPC分类号： G10K11/178
CPC分类号： G10K11/178 , G10K11/17823 , G10K11/17835 , G10K11/17879 , G10K11/17883 , G10K2210/12821 , G10K2210/129 , G10K2210/30391 , G10K2210/3045 , G10K2210/3046
摘要： An example active road noise control includes generating with a sensor arrangement a primary sense signal representative of at least one of accelerations, motions and vibrations that occur at a first position, and providing a noise reducing signal by processing the primary sense signal according to an adaptive mode of operation or a non-adaptive mode of operation. It further includes generating within the vehicle body noise reducing sound at the second position from the noise reducing signal, evaluating the primary sense signal and controlling the processing of the primary sense signal so that the primary sense signal is processed in the adaptive mode of operation when the magnitude of the primary sense signal undercuts a first threshold and in the non-adaptive mode of operation when the magnitude of the primary sense signal exceeds a second threshold, the first threshold being equal to or smaller than the second threshold.
摘要翻译：示例性主动道路噪声控制包括利用传感器装置生成代表在第一位置发生的加速度，运动和振动中的至少一个的主感测信号，以及通过根据自适应的方式处理主感测信号来提供降噪信号操作模式或非自适应操作模式。它还包括在噪声降低信号的第二位置产生车身噪声降低声音，评估主感测信号并控制主感测信号的处理，使得在自适应操作模式下处理主感测信号，当主感测信号的幅度超过第二阈值时，主感测信号的幅度下降第一阈值，并且在非自适应操作模式中，第一阈值等于或小于第二阈值。

32. 发明申请

WO2016069201A1 VARIABLE RATE ADAPTIVE ACTIVE NOISE CANCELLATION 审中-公开
标题翻译：可变速率自适应主动噪声消除
公开(公告)号：WO2016069201A1
公开(公告)日：2016-05-06
申请号：PCT/US2015/053679
申请日：2015-10-02
申请人： QUALCOMM INCORPORATED
发明人： PARK, Hyun Jin , CHALLA, Deepak Kumar , LACATUS, Catalin
IPC分类号： G10K11/178
CPC分类号： G10K11/175 , G10K11/178 , G10K11/17835 , G10K11/17855 , G10K2210/1081 , G10K2210/30391 , G10K2210/3051 , G10K2210/3053
摘要： A method of audio signal processing includes determining a difference between a first set of filter parameters of a first input frame of an active noise cancellation (ANC) filter and a second set of filter parameters of a second input frame of the ANC filter. The method further includes selectively modifying a duty cycle of adaptive ANC processing associated with the ANC filter based on the difference between the first set of filter parameters and the second set of filter parameters.
摘要翻译：音频信号处理的方法包括确定有源噪声消除（ANC）滤波器的第一输入帧的第一组滤波器参数与ANC滤波器的第二输入帧的第二组滤波器参数之间的差。该方法还包括基于第一组滤波器参数和第二组滤波器参数之间的差异选择性地修改与ANC滤波器相关联的自适应ANC处理的占空比。

33. 发明申请

WO2016048489A1 ACTIVE REDUCTION OF HARMONIC NOISE FROM MULTIPLE NOISE SOURCES 审中-公开
标题翻译：从多个噪声源主动减少谐波噪声
公开(公告)号：WO2016048489A1
公开(公告)日：2016-03-31
申请号：PCT/US2015/045823
申请日：2015-08-19
申请人： BOSE CORPORATION
发明人： GANESHKUMAR, Alaganandan , KLUG, Dennis D.
IPC分类号： G10K11/178
CPC分类号： G10K11/178 , G10K11/17835 , G10K11/17883 , G10K2210/1282 , G10K2210/3026 , G10K2210/3027 , G10K2210/3028 , G10K2210/3033 , G10K2210/3054
摘要： A system and method for reducing harmonic noise caused by two or more noise sources by causing one or more loudspeakers to produce sounds that are at about the same frequencies as the noise and of substantially opposite phase. There is a noise canceller associated with each noise source. Each noise canceller includes a harmonic sine wave generator that generates an output sine wave. Each noise canceller also has an adaptive filter that uses a sine wave to create a noise reduction signal that is used to drive one or more transducers with their outputs directed to reduce noise caused by the noise sources. There is an overlap detector that compares the harmonic frequencies and, based on their proximity, alters the operation of one or more adaptive filters.
摘要翻译：一种用于通过使一个或多个扬声器产生与噪声大致相同的频率和基本上相反的相位的声音来减少由两个或更多个噪声源引起的谐波噪声的系统和方法。每个噪声源都有一个噪声消除器。每个噪声消除器包括产生输出正弦波的谐波正弦波发生器。每个噪声消除器还具有自适应滤波器，其使用正弦波来产生噪声降低信号，该信号用于驱动一个或多个换能器，其输出被引导以减少由噪声源引起的噪声。存在重叠检测器，其比较谐波频率，并且基于它们的接近度改变一个或多个自适应滤波器的操作。

34. 发明申请

WO2014115533A1 能動騒音低減装置と、これを用いた機器、ならびに能動型騒音低減方法审中-公开
标题翻译：主动噪声减少装置，使用其的仪器和主动噪声减少方法
公开(公告)号：WO2014115533A1
公开(公告)日：2014-07-31
申请号：PCT/JP2014/000269
申请日：2014-01-21
申请人：パナソニック株式会社
发明人：谷　充博 , 開藤　充 , 舟山　敏之
IPC分类号： G10K11/178 , B60R11/02
CPC分类号： G10K11/175 , G10K11/178 , G10K11/17823 , G10K11/17835 , G10K2210/1282 , G10K2210/3016 , G10K2210/3039
摘要：　能動騒音低減装置では、この課題を解決するために、制御ブロックは、レベル検出部で検知した参照信号のレベルの大きさを判定する。そして、制御ブロックにおいて、参照信号のレベルが小さいと判定された場合に、キャンセル信号のレベルを小さくする。これにより、騒音のレベルが小さい場合でも、異音の発生を抑制することができる。
摘要翻译：为了在有源噪声降低装置中解决这个问题，控制块确定由电平检测器感测到的参考信号的电平的大小。在控制块中，当参考信号的电平被确定为小时，消除信号的电平被减小。即使噪音水平较小，也能抑制异常噪音的发生。

35. 发明授权

US12119016B2 Compressive hear-through in personal acoustic devices 有权
公开(公告)号：US12119016B2
公开(公告)日：2024-10-15
申请号：US17381794
申请日：2021-07-21
申请人： Bose Corporation
发明人： John Allen Rule , Daniel M. Gauger, Jr. , Dale McElhone , Katie Janine Moenkhaus
IPC分类号： G10K11/178 , G10L21/0232 , G10L25/84 , H04R1/10 , H04R3/00 , H04R5/033 , H04R5/04 , G10L25/78
CPC分类号： G10L21/0232 , G10K11/17823 , G10K11/17833 , G10K11/17835 , G10K11/17837 , G10K11/17885 , G10L25/84 , H04R1/1083 , H04R3/00 , H04R5/033 , H04R5/04 , G10K11/17827 , G10K2210/1081 , G10K2210/3014 , G10K2210/3016 , G10K2210/3039 , G10K2210/3056 , G10L25/78 , H04R2430/01 , H04R2460/01
摘要： The technology described in this document can be embodied in a method that includes receiving an input signal representing audio captured by a microphone of an active noise reduction (ANR) headphone, processing, by one or more processing devices, a portion of the input signal to determine a noise level in the input signal, and determining that the noise level satisfies a threshold condition. The method also includes, in response to determining that the noise level satisfies the threshold condition, generating an output signal in which ANR processing on the input signal is controlled in accordance with a target loudness level of the output signal, and driving an acoustic transducer of the ANR headphone using the output signal.

36. 发明公开

US20240339102A1 BROAD SPECTRUM INSTABILITY DETECTION AND MITIGATION 审中-公开
公开(公告)号：US20240339102A1
公开(公告)日：2024-10-10
申请号：US18744448
申请日：2024-06-14
申请人： BOSE CORPORATION
发明人： Douglas George MORTON , Emery M. KU
IPC分类号： G10K11/178
CPC分类号： G10K11/17835 , G10K11/17825 , G10K11/17881 , G10K2210/1081 , G10K2210/3023 , G10K2210/3026 , G10K2210/3027 , G10K2210/3044
摘要： A method performed by an audio output device is provided for detecting instabilities and taking mitigating actions. Specifically, an A-weighted dBA level of a raw feedback signal exceeding a threshold level trigger, at least, muting the driver. The described methods apply to detecting instabilities across a broad frequency spectrum.

37. 发明申请

US20190130890A1 ACTIVE NOISE REDUCTION DEVICE, CAR, AND ACTIVE NOISE REDUCTION METHOD 审中-公开
公开(公告)号：US20190130890A1
公开(公告)日：2019-05-02
申请号：US16166402
申请日：2018-10-22
申请人： PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
发明人： Mitsuhiro TANI
IPC分类号： G10K11/178
CPC分类号： G10K11/17835 , G10K11/17823 , G10K11/17825 , G10K11/17833 , G10K2210/1282 , G10K2210/503
摘要： An active noise control device reduces noise inside a cabin of a car. The active noise control device includes: a controller that decreases a signal level of a canceling signal when a signal level of a received reference signal is lower than a threshold; and a threshold controller that changes the threshold based on at least one of a signal level of an error signal and information on the car.

38. 发明申请

US20180268803A1 NOISE AND VIBRATION SENSING 审中-公开
公开(公告)号：US20180268803A1
公开(公告)日：2018-09-20
申请号：US15762007
申请日：2016-08-25
申请人： Harman Becker Automotive Systems GmbH
发明人： Gerhard PFAFFINGER
IPC分类号： G10K11/178
CPC分类号： G10K11/17883 , G10K11/178 , G10K11/17823 , G10K11/17835 , G10K11/17879 , G10K2210/12821 , G10K2210/129 , G10K2210/30391 , G10K2210/3045 , G10K2210/3046
摘要： An example active road noise control includes generating with a sensor arrangement a primary sense signal representative of at least one of accelerations, motions and vibrations that occur at a first position, and providing a noise reducing signal by processing the primary sense signal according to an adaptive mode of operation or a non-adaptive mode of operation. It further includes generating within the vehicle body noise reducing sound at the second position from the noise reducing signal, evaluating the primary sense signal and controlling the processing of the primary sense signal so that the primary sense signal is processed in the adaptive mode of operation when the magnitude of the primary sense signal undercuts a first threshold and in the non-adaptive mode of operation when the magnitude of the primary sense signal exceeds a second threshold, the first threshold being equal to or smaller than the second threshold.

39. 发明申请

US20170332163A1 ACOUSTIC NOISE REDUCTION AUDIO SYSTEM HAVING TAP CONTROL 有权
公开(公告)号：US20170332163A1
公开(公告)日：2017-11-16
申请号：US15668386
申请日：2017-08-03
申请人： Bose Corporation
发明人： Paul Yamkovoy
IPC分类号： H04R1/10 , G10K11/178 , H04R29/00
CPC分类号： H04R1/1041 , G10K11/178 , G10K11/17835 , G10K11/17875 , G10K11/17879 , G10K2210/1081 , G10K2210/30231 , H04R1/1083 , H04R3/007 , H04R29/001 , H04R2460/01
摘要： Acoustic noise reduction (ANR) headphones described herein have current detection circuitry that is used to detect current consumed by ANR circuitry as a result of pressure changes due to a tapping of a headphone, ear or head of a user. Tapping may be performed to change an audio feature or operating mode. The current detection circuitry senses a characteristic of the current that can be used to determine an occurrence of a tap event. Examples of a characteristic include an amplitude, waveform or duration of the sensed current. Advantageously, the ANR headphones avoid the need for control buttons to initiate the desired changes to the audio feature or operating mode. Error detection circuitry included in the ANR headphones can distinguish between a valid tap events and an occurrence of a different type of event that may otherwise be improperly be interpreted as a tap event.

40. 发明申请

US20170263236A1 EXPLOSIVE SOUND PRESSURE LEVEL ACTIVE NOISE CANCELLATION UTILIZING COMPLETELY WIRELESS EARPIECES SYSTEM AND METHOD 审中-公开
公开(公告)号：US20170263236A1
公开(公告)日：2017-09-14
申请号：US15458905
申请日：2017-03-14
申请人： BRAGI GmbH
发明人： Peter Vincent Boesen , Darko Dragicevic
IPC分类号： G10K11/178 , H04R1/10
CPC分类号： H04R1/1083 , A61F11/08 , A61F2011/145 , G10K11/17835 , G10K2210/1081 , H04R1/1016 , H04R1/1041 , H04R2420/07 , H04R2460/01
摘要： A system includes a first earpiece having an earpiece housing configured to isolate an ambient environment from a tympanic membrane by physically blocking ambient sound, a microphone disposed within the housing and configured to receive a first ambient audio signal from the ambient environment, a processor operatively connected to the microphone wherein the processor is configured to receive the first ambient audio signal from the microphone and determine if the first ambient signal exceeds a threshold sound level, and a speaker operatively connected to the processor. In a first mode of operation the processor determines that the first ambient audio signal exceeds the threshold sound level and processes the first ambient audio signal to modify the first ambient audio signal. In a second mode of operation the processor determines that the first ambient audio signal does not exceed the threshold sound level and reproduces the first ambient audio signal at the speaker.

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