公开(公告)号：EP3304541A1

公开(公告)日：2018-04-11

申请号：EP16807011.8

申请日：2016-06-01

申请人： Oppenheimer, Yehuda ,  Salomonski, Yaron

发明人： Oppenheimer, Yehuda ,  Salomonski, Yaron

IPC分类号： G10K11/178

CPC分类号： G10K11/17823 ,  G10K11/17815 ,  G10K11/17837 ,  G10K11/17881 ,  G10K11/17885 ,  G10K2210/108 ,  G10K2210/3044 ,  G10K2210/3055 ,  G10K2210/3216 ,  H04R3/04 ,  H04R29/001

摘要： Method and system for active reduction of a predefined audio acoustic signal (AAAS), also referred to as “noise”, in a quiet zone, without interfering undefined acoustic noise signals within as well as outside the quiet zone, by generating accurate antiphase AAAS signal. The accuracy of the generated antiphase AAAS is obtained by employing a unique synchronization signal(s) (SYNC) which is generated and combined with the predefined AAAS. The combined signal is electrically transmitted (referred to as the “electric channel”) to a processing “quieting component”. Simultaneously, the generated SYNC signal is acoustically broadcasted near the predefined AAAS and merges with it. A microphone in the quiet zone receives the merged acoustic signals that arrive via the air (referred to as the “acoustical channel”) to the quiet zone and a receiver in the quieting component receives the combined electrical AAAS and SYNC signal that arrive wire or wireless to the quiet zone. In the quiet component the SYNC is detected from both electrical and acoustical channels, the detected SYNC signals with the electrically received AAAS signal are used to calculate the timing and momentary amplitude for generating an accurate acoustic antiphase AAAS signal to cancel the acoustic predefined AAAS. By continuously and periodically updating the SYNC signal enables to dynamically evaluate acoustical environmental distortions that might appear due to echo, reverberations, frequency non-linear response, or due to other distortions mechanisms.

公开(公告)号：EP2425423B1

公开(公告)日：2013-04-17

申请号：EP10715645.7

申请日：2010-04-26

申请人： Bose Corporation

发明人： CARRERAS, Ricardo F. ,  JOHO, Marcel ,  GAUGER, Daniel M. ,  ISABELLE, Steven H.

IPC分类号： G10K11/178

CPC分类号： G10K11/178 ,  G10K2210/3028 ,  G10K2210/3044 ,  G10K2210/3051

摘要： Method of supporting ANR analysis performed by a processing device coupled to an ANR circuit performing at least one of feedback-based and feedforward-based ANR in at least one earpiece of a personal ANR device, comprising: downsampling digital data representing reference sounds detected by at least one of a feedback microphone disposed within the at least one earpiece and a feedforward microphone disposed on a portion of the personal ANR device to derive a downsampled form of the digital data; operating an interface of the ANR circuit that couples the ANR circuit to a bus to which the processing device is also coupled to transmit said downsampled form to the processing device as side-chain data; operating the processing device to employ the side-chain data as an input to the ANR analysis, routing said downsampled form through a filter to provide weighting to frequencies of reference sounds represented by said downsampled form prior to operating said interface to transmit said downsampled form as the side-chain data to the processing device.

公开(公告)号：EP2533240A1

公开(公告)日：2012-12-12

申请号：EP12178333.6

申请日：2010-04-26

申请人： Bose Corporation

发明人： Carreras, Ricardo F. ,  Joho, Marcel ,  Gauger, Daniel M. ,  Isabelle, Steven H.

IPC分类号： G10K11/178

CPC分类号： G10K11/178 ,  G10K2210/3028 ,  G10K2210/3044 ,  G10K2210/3051

摘要： Method of supporting ANR analysis performed by a processing device coupled to an ANR circuit performing at least one of feedback-based and feedforward-based ANR in at least one earpiece of a personal ANR device, comprising: downsampling digital data representing reference sounds detected by at least one of a feedback microphone disposed within the at least one earpiece and a feedforward microphone disposed on a portion of the personal ANR device to derive a downsampled form of the digital data; operating an interface of the ANR circuit that couples the ANR circuit to a bus to which the processing device is also coupled to transmit said downsampled form to the processing device as side-chain data; operating the processing device to employ the side-chain data as an input to the ANR analysis, routing said downsampled form through a filter to provide weighting to frequencies of reference sounds represented by said downsampled form prior to operating said interface to transmit said downsampled form as the side-chain data to the processing device.

摘要翻译： 一种支持ANR分析的方法，所述ANR分析由耦合到ANR电路的处理设备执行，所述ANR电路在个人ANR设备的至少一个耳机中执行基于反馈和前馈的ANR中的至少一个ANR，包括：对代表由at 设置在所述至少一个耳机内的反馈麦克风中的至少一个和设置在所述个人ANR设备的一部分上的前馈麦克风以导出所述数字数据的下采样形式; 操作ANR电路的接口，其将ANR电路耦合到处理设备也被耦合到的总线，以将所述下采样形式传送到处理设备作为侧链数据; 操作处理装置以使用侧链数据作为ANR分析的输入，通过滤波器路由所述下采样形式，以在操作所述接口之前对由所述下采样形式表示的参考声音的频率进行加权，以将所述下采样形式发送为 侧链数据到处理设备。

公开(公告)号：EP0396666B1

公开(公告)日：1996-03-20

申请号：EP89910510.0

申请日：1989-08-30

申请人： NOISE CANCELLATION TECHNOLOGIES, INC.

发明人： ZIEGLER, Eldon, W., Jr.

IPC分类号： G06F17/10

CPC分类号： H03H21/0012 ,  G10K11/178 ,  G10K2210/3044 ,  G10K2210/3051 ,  G10K2210/3053 ,  G10K2210/3222 ,  G10K2210/503 ,  G10K2210/511

摘要： A cancellation system including a processor having single adaptive filters adapting its filtering characteristic as a function of a phenomena signal and phenomena timing signal and a phase circuit to maintain the adapting of the filtering characteristics within 90 degrees phase of the phenomena signal. The phase circuit has the capability to measure the delays of the processor and the environment.

公开(公告)号：EP3392875A1

公开(公告)日：2018-10-24

申请号：EP17461525.2

申请日：2017-04-18

申请人： General Electric Company

发明人： NGUYEN, Quoc Hoal ,  NAGORSKI, Arkadiusz Bartlomiej

IPC分类号： G10K11/178 ,  F01N1/06 ,  F02C7/045

CPC分类号： G10K11/17823 ,  F01N1/065 ,  F02C7/00 ,  F02C7/045 ,  F05D2220/72 ,  F05D2260/96 ,  F05D2270/061 ,  F24F13/24 ,  F24F2013/247 ,  G10K11/178 ,  G10K11/17825 ,  G10K11/17881 ,  G10K11/17883 ,  G10K2210/105 ,  G10K2210/112 ,  G10K2210/121 ,  G10K2210/3011 ,  G10K2210/3032 ,  G10K2210/3044

摘要： A method to suppress noise emanating from an electrical power generator (10) including the steps of: receiving sound emanating from the electrical power generator, wherein the sound is received in a duct for cooling air having passed through the generator; analyzing the received sound (104) and, based on the analysis, generating a sound signal which represents a destructive sound to the received sound, and broadcasting a destructive sound into the duct (108), wherein the destructive sound corresponds to the sound signal.

公开(公告)号：EP3346726A1

公开(公告)日：2018-07-11

申请号：EP17209914.5

申请日：2017-12-22

申请人： Harman Becker Automotive Systems GmbH

发明人： WOELFL, Genaro ,  Kronlachner, Matthias

IPC分类号： H04R1/10 ,  G10K11/178

CPC分类号： G10K11/17815 ,  G10K1/38 ,  G10K11/178 ,  G10K11/17827 ,  G10K11/17881 ,  G10K2210/1081 ,  G10K2210/128 ,  G10K2210/3026 ,  G10K2210/3044 ,  G10K2210/3046 ,  H04R1/028 ,  H04R1/1008 ,  H04R1/1083 ,  H04R3/02 ,  H04R5/02 ,  H04R5/033 ,  H04R5/04 ,  H04R2205/022 ,  H04R2460/01 ,  H04R2499/13 ,  H04S3/008 ,  H04S5/02 ,  H04S7/304 ,  H04S7/306 ,  H04S2400/01 ,  H04S2400/11 ,  H04S2420/01

摘要： A loudspeaker arrangement comprises a first loudspeaker configured to radiate an acoustical signal, and a first microphone that is acoustically coupled to the first loudspeaker via a secondary path and that is electrically coupled to the first loudspeaker via an active noise control processing unit. During the use of the loudspeaker arrangement, the first loudspeaker is arranged at a first distance from a first active noise control target position, wherein the first active noise control target position is a position at which noise is to be suppressed, and wherein the first distance is a length of the shortest path between the first loudspeaker and the first active noise control target position through free air. The first microphone is arranged at a second distance from the first loudspeaker, wherein the second distance is a length of the shortest path between the first loudspeaker and the first microphone through free air. The first distance equals the second distance, and the position of the first microphone differs from the first active noise target position.

公开(公告)号：EP3229230A1

公开(公告)日：2017-10-11

申请号：EP17164748.0

申请日：2017-04-04

申请人： Harman International Industries, Incorporated

发明人： BUTTS, Donald Joseph ,  SUKO, Todd

IPC分类号： G10K11/178

CPC分类号： H04R17/02 ,  G10K11/178 ,  G10K11/1786 ,  G10K2210/12 ,  G10K2210/1281 ,  G10K2210/1282 ,  G10K2210/1283 ,  G10K2210/3028 ,  G10K2210/3044 ,  G10K2210/3046 ,  H04R1/403 ,  H04R1/406 ,  H04R3/005 ,  H04R3/12 ,  H04R2499/13

摘要： A technique for reducing noise in a listening environment. The technique includes dividing the listening environment into a plurality of zones, where each zone is associated with a different active noise cancellation (ANC) system. A boundary between a first zone included in the plurality of zones and a second zone included in the plurality of zones comprises open space. The technique further includes assigning a plurality of acoustic sensors and a plurality of speakers to the ANC system associated with each zone included in the plurality of zones. The technique further includes, for each zone included in the plurality of zones, acquiring acoustic data via the plurality of acoustic sensors, processing the acoustic data, via a processor, to generate noise cancellation signals, and outputting the noise cancellation signals via the plurality of speakers.

摘要翻译： 一种在聆听环境中减少噪音的技术。 该技术包括将收听环境分成多个区域，其中每个区域与不同的主动噪声消除（ANC）系统相关联。 包括在多个区域中的第一区域和包括在多个区域中的第二区域之间的边界包括开放空间。 该技术还包括将多个声学传感器和多个扬声器分配给与包括在多个区域中的每个区域相关联的ANC系统。 该技术还包括对于包括在多个区域中的每个区域，经由多个声学传感器获取声学数据，经由处理器处理声学数据以生成噪声消除信号，并且经由多个区域输出噪声消除信号 扬声器。

公开(公告)号：EP3166335A1

公开(公告)日：2017-05-10

申请号：EP15815567.1

申请日：2015-07-01

申请人： Clarion Co., Ltd.

发明人： SAKANE, Keita

IPC分类号： H04R9/00 ,  G10K11/178 ,  H04R7/04 ,  H04R9/04

CPC分类号： H04R9/063 ,  G10K11/178 ,  G10K2210/3044 ,  H04R1/005 ,  H04R1/1083 ,  H04R7/04 ,  H04R7/06 ,  H04R9/025 ,  H04R9/046 ,  H04R9/047 ,  H04R2207/00 ,  H04R2460/01

摘要： Provided is a speaker device configured so that a time lag between a sound signal and a noise cancellation signal can be prevented, worsening of high-frequency characteristics can be avoided, and acoustic characteristics can be improved. A plane diaphragm 11 includes a flexible circuit board 20. A sound voice coil pattern 21 to which drive current corresponding to a sound signal is supplied and a noise cancellation voice coil pattern 22 to which drive current corresponding to a noise cancellation signal is supplied are formed on the flexible circuit board 20 and are formed corresponding to a formed magnetic field of a magnet 13.

摘要翻译： 提供了一种扬声器装置，其被配置为使得可以防止声音信号与噪声消除信号之间的时间滞后，可以避免高频特性的恶化，并且可以改善声学特性。 平面振动膜11包括柔性电路板20.形成与声音信号相对应的驱动电流被提供到的声音音圈图案21以及被供应有与噪声消除信号相对应的驱动电流的噪声消除音圈图案22 在柔性电路板20上并且形成为对应于磁体13的形成的磁场。

公开(公告)号：EP3125237A1

公开(公告)日：2017-02-01

申请号：EP16181423.1

申请日：2016-07-27

申请人： Harman International Industries, Incorporated

发明人： KONJETI, Srikanth ,  HAMPIHOLI, Vallabha Vasant

IPC分类号： G10L15/20 ,  G10L21/02 ,  G10K11/178 ,  G10L21/0216

CPC分类号： G10L25/84 ,  G10K11/17813 ,  G10K11/17883 ,  G10K2210/1082 ,  G10K2210/1282 ,  G10K2210/3028 ,  G10K2210/3044 ,  G10K2210/3225 ,  G10L15/20 ,  G10L21/02 ,  G10L21/0208 ,  G10L2021/02165 ,  H04R3/005 ,  H04R2410/05

摘要： In at least one embodiment, a vehicle active noise cancellation (ANC) apparatus including an ANC controller is disclosed. The ANC controller is operably coupled to at least one error microphone (EM1, EM2, EMn). The ANC controller is configured to receive (50) a first signal indicative of environmental noise that propagates through a vehicle cabin and that is received at a voice recognition microphone (VRM) and to generate (20) a noise cancellation wave to remove the environmental noise, the noise cancellation wave being received at the VR microphone (VRM). The ANC controller is configured to receive an audio output from the at least one error microphone that is at least indicative of the environmental noise and the noise cancellation wave received at the VR microphone and to apply at least one correction filter (CF1, CF2, CFn) to the audio output to remove the environmental noise and the noise cancellation wave that is received at the VR microphone.

摘要翻译： 在至少一个实施例，车辆有源噪声消除（ANC）装置，其包括在ANC控制器被游离缺失盘。 所述ANC控制器可操作地耦合到至少一个误差麦克风（EM1，EM2，EMN）。 所述ANC控制器被配置为接收（50）指示环境噪声的第一信号确实通过车厢传播并且没有在语音识别的麦克风（VRM）并产生（20）一个噪声消除波去除环境噪声接收 ，在VR麦克风（VRM）正在接收的噪声消除波。 （该ANC控制器被配置为接收音频输出从所述至少一个误差麦克风并至少指示所述环境噪声和噪声消除波的接收在VR麦克风，并应用至少一个校正滤波器CF1，CF2，CFÑ ）到音频输出以除去没有被在VR麦克风接收所述环境噪声与噪声消除波。

公开(公告)号：EP0674305A2

公开(公告)日：1995-09-27

申请号：EP95104383.5

申请日：1995-03-24

申请人： HONDA GIKEN KOGYO KABUSHIKI KAISHA

发明人： Kobayashi, Toshiaki, c/o Honda R & D Co., Ltd. ,  Ozawa, Hidetaka, c/o Honda R & D Co., Ltd.

IPC分类号： G10K11/178

CPC分类号： G10K11/178 ,  G10K2210/101 ,  G10K2210/121 ,  G10K2210/1282 ,  G10K2210/129 ,  G10K2210/30232 ,  G10K2210/3028 ,  G10K2210/3033 ,  G10K2210/3044 ,  G10K2210/3045 ,  G10K2210/3048 ,  G10K2210/3049 ,  G10K2210/3055 ,  G10K2210/3211 ,  G10K2210/511

摘要： A vibration/noise control system controls vibrations and noises generated with a periodicity or a quasi-periodicity from a vibration/noise source having at least a rotating member. A self-expanding engine mount (2) is arranged in at least one of vibration/noise transmission paths (15) and is driven by a driving signal generated by the system. A vibration error sensor (G) detects an error signal (E) exhibiting a difference between the driving signal (Z) and the vibrations and noises. A reference sine wave is generated, which is superposed on a control signal for controlling the vibration/noise source, to thereby drive the self-expanding engine mount (2). A transfer characteristic of a portion of at least one of the vibration/noise transmission paths (15) is identified based on the reference sine wave, a delayed sine wave delayed by a predetermined delay period M relative to the reference sine wave, and the error signal (E). The transfer characteristic stored is updated based on an identification signal output from an identifying filter formed by an adaptive digital filter having two taps. The predetermined delay period M is set relative to the repetition period of the reference sine wave in a range of 1/3 ≧ M ≧ 1/7, wherein M is a real number.

摘要翻译： 振动/噪音控制系统控制从具有至少一个旋转构件的振动/噪音源以周期性或准周期性产生的振动和噪音。 自振式发动机支架（2）布置在振动/噪声传输路径（15）中的至少一个中并且由系统产生的驱动信号驱动。 振动误差传感器（G）检测表现出驱动信号（Z）与振动和噪声之间的差异的误差信号（E）。 产生参考正弦波，该参考正弦波叠加在用于控制振动/噪声源的控制信号上，从而驱动自扩式发动机支架（2）。 基于参考正弦波，相对于参考正弦波延迟了预定延迟周期M的延迟正弦波，识别至少一个振动/噪声传输路径（15）的一部分的传输特性，并且误差 信号（E）。 存储的传输特性基于从具有两个抽头的自适应数字滤波器形成的识别滤波器输出的识别信号进行更新。 预定延迟周期M相对于基准正弦波的重复周期在1/3≧M≧1/7的范围内设定，其中M是实数。