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31. 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。

32. 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。

33. 发明授权

EP3159891B1 NOISE AND VIBRATION SENSING 有权
公开(公告)号：EP3159891B1
公开(公告)日：2018-08-08
申请号：EP15190987.6
申请日：2015-10-22
申请人： Harman Becker Automotive Systems GmbH
发明人： PFAFFINGER, Gerhard
IPC分类号： G10K11/178
CPC分类号： G10K11/17835 , G10K11/17833 , G10K11/17853 , G10K2210/1282 , G10K2210/12821 , G10K2210/3028 , G10K2210/3226 , G10K2210/501 , G10K2210/503
摘要： An active road-noise control system and method include using a sensor arrangement generating a signal representative of at least one acceleration, motion and/or vibration that occurs at a first position on a vehicle body and a signal representative of sound that occurs at a second position within the vehicle body. The system and method further include the generation of noise-reducing sound within the vehicle body at the second position from the noise reducing signal and the evaluation of the operational state of the sensor arrangement; they also control the processing of the first sense signal and the second sense signal so that the first sense signal and the second sense signal are processed in the first mode of operation when the sensor arrangement is in a proper operational state and in the second mode of operation when a malfunction of the sensor arrangement has been detected.

34. 发明公开

EP2950305A4 ACTIVE NOISE REDUCTION DEVICE, INSTRUMENT USING SAME, AND ACTIVE NOISE REDUCTION METHOD 有权转让
标题翻译： AKORRAUSCHUNTERDRÜCKUNGSVORRICHTUNG，仪器仪表展览会RAUSCHUNTERDRÜCKUNGSVERFAHREN
公开(公告)号：EP2950305A4
公开(公告)日：2016-06-22
申请号：EP14743643
申请日：2014-01-21
申请人： PANASONIC IP MAN CO LTD
发明人： TANI MITSUHIRO , KAITOU MITSURU , FUNAYAMA TOSHIYUKI
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： In an active noise control device, in order to solve this problem, a control block determines a level of a reference signal detected by a level detection unit. If determining that the level of the reference signal is small, the control block decreases a level of a cancel signal. This operation suppresses generation of an abnormal sound even if a level of a noise is small.
摘要翻译：在有源噪声控制装置中，为了解决这个问题，控制块确定由电平检测单元检测到的参考信号的电平。如果确定参考信号的电平小，则控制块降低取消信号的电平。该操作即使噪声水平小也抑制异常声音的产生。

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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