公开(公告)号：US09066176B2

公开(公告)日：2015-06-23

申请号：US13950854

申请日：2013-07-25

申请人： Cirrus Logic, Inc.

发明人： Jon D. Hendrix ,  Ning Li ,  Jeffrey D. Alderson

IPC分类号： H04R5/033 ,  G10K11/178 ,  H04R1/10

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。

公开(公告)号：US20140307899A1

公开(公告)日：2014-10-16

申请号：US13950854

申请日：2013-07-25

申请人： Cirrus Logic, Inc.

发明人： Jon D. Hendrix ,  Ning Li ,  Jeffrey D. Alderson

IPC分类号： G10K11/16 ,  H04R5/033

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。

公开(公告)号：US5805714A

公开(公告)日：1998-09-08

申请号：US731753

申请日：1996-10-18

申请人： Minoru Kasama ,  Koji Udagawa ,  Masahiro Mori

发明人： Minoru Kasama ,  Koji Udagawa ,  Masahiro Mori

IPC分类号： B41J29/10 ,  G03G21/00 ,  G10K11/16 ,  G10K11/178 ,  A61F11/06 ,  H03B29/00

CPC分类号： G10K11/178 ,  G10K2210/1052 ,  G10K2210/30232 ,  G10K2210/3025 ,  G10K2210/3033 ,  G10K2210/3048 ,  G10K2210/3049

摘要： A noise suppressor in an image forming apparatus suppresses noise from a drive mechanism during operation. An operation start signal of the drive mechanism is detected. A previously stored secondary sound having a reversed waveform to the waveform of the noise is generated at a noise suppressing position based on the drive operation start signal.

摘要翻译： 图像形成装置中的噪声抑制器在操作期间抑制来自驱动机构的噪声。 检测驱动机构的操作开始信号。 基于驱动操作开始信号，在噪声抑制位置产生预先存储的具有与噪声波形相反的波形的二次声音。

公开(公告)号：US20170323630A1

公开(公告)日：2017-11-09

申请号：US15469231

申请日：2017-03-24

申请人： SNOREHAMMER, INC.

发明人： Kathleen Marie O'Leary Stickney ,  Mark A. Haun ,  Mark Samuel Freeman

IPC分类号： G10K11/178

CPC分类号： G10K11/178 ,  G10K11/17857 ,  G10K11/17881 ,  G10K2210/1081 ,  G10K2210/12 ,  G10K2210/3026 ,  G10K2210/3027 ,  G10K2210/3028 ,  G10K2210/3031 ,  G10K2210/3048 ,  G10K2210/3219 ,  G10K2210/3221

摘要： A kit for attenuation of noise includes a noise source audio transducer, two ear pieces, and a control unit. The two ear pieces have respective resilient bodies that engage outer portions of ear canals of respective ears of a user while respective in-ear transducers of the two ear pieces are respectively positioned in inner portions of the ear canals. The respective in-ear transducers detect discrepancies (e.g., incomplete superpositioning) between the noise and the anti-noise. The respective in-ear transducers optionally detect respective secondary path effects in the ear canals. The noise source audio transducer detects noise generated by a noise source (e.g., snoring noise). The control unit configures an adaptive filter based at least in part on an error signal, and optionally based in part on secondary path effects. The control unit generates signals representative of anti-noise. The two ear pieces produce the anti-noise responsive to the signals. The two ear pieces produce masking noise with sound level that varies in direct correlation with sound level of the noise generated by the noise source.

公开(公告)号：US20150348529A1

公开(公告)日：2015-12-03

申请号：US14720955

申请日：2015-05-25

申请人： AVerMedia TECHNOLOGIES, INC.

发明人： Yan-Min KUO ,  Li-Yen LIN

IPC分类号： G10K11/16

CPC分类号： G10K11/178 ,  G10K11/17823 ,  G10K11/17885 ,  G10K2210/3016 ,  G10K2210/3028 ,  G10K2210/3033 ,  G10K2210/3047 ,  G10K2210/3048

摘要： An anti-noise headset device and a sound processing method thereof are provided. The anti-noise headset device includes an audio receiving module and a control module. The audio receiving module is configured to receive several audio signals in several periods. The control module is electrically coupled to the audio receiving module. The control module is configured to store the audio signals received from a first period to an Nth period as sound data. The control module compares the audio signal received in an (N+1)th period with the sound data so as to generate a relevance value, N is an integer larger than zero. When the relevance value is smaller than a threshold value, the control module filters out a portion of the audio signal received in the (N+1)th period, in which the portion of the audio signal received in the (N+1)th period is relevant to the sound data.

摘要翻译： 提供了一种抗噪声耳机装置及其声音处理方法。 防噪音耳机设备包括音频接收模块和控制模块。 音频接收模块被配置为在若干周期内接收多个音频信号。 控制模块电耦合到音频接收模块。 控制模块被配置为将从第一周期接收的音频信号存储到第N周期作为声音数据。 控制模块将在第（N + 1）个周期中接收的音频信号与声音数据进行比较，以产生相关值，N是大于零的整数。 当相关值小于阈值时，控制模块滤除在第（N + 1）个周期中接收到的音频信号的一部分，其中在第（N + 1） 期间与声音数据相关。

公开(公告)号：US09179237B2

公开(公告)日：2015-11-03

申请号：US13328296

申请日：2011-12-16

申请人： Davis Y. Pan ,  William M. Rabinowitz ,  Wontak Kim ,  Hal Greenberger

发明人： Davis Y. Pan ,  William M. Rabinowitz ,  Wontak Kim ,  Hal Greenberger

IPC分类号： G10K11/16 ,  H03B29/00 ,  A61F11/06 ,  H04S7/00 ,  G10K11/178 ,  H04R29/00

CPC分类号： H04S7/00 ,  G10K11/178 ,  G10K2210/1082 ,  G10K2210/1282 ,  G10K2210/3046 ,  G10K2210/3048 ,  G10K2210/3055 ,  H04R29/00 ,  H04R2420/01 ,  H04R2499/13

摘要： A method of virtually tuning an audio system that incorporates an acoustic compensation system, where the audio system is adapted to play audio signals in a listening environment over one or more sound transducers. The acoustic compensation system has an audio sensor located at a sensor location in the listening environment. The transfer functions from each sound transducer to the audio sensor location are inherent. The method contemplates recording noise at the sensor location, and creating virtual transfer functions from each sound transducer to the sensor location based on the inherent transfer functions from each sound transducer to the sensor location. Audio signals are processed through the virtual sound transducer to sensor location transfer functions. A virtual sensor signal is created by combining the audio signals processed through the virtual sound transducer to sensor location transfer functions with the noise recorded at the sensor location.

摘要翻译： 一种虚拟调谐包括声学补偿系统的音频系统的方法，其中音频系统适于在听觉环境中通过一个或多个声音换能器播放音频信号。 声学补偿系统具有位于听觉环境中的传感器位置处的音频传感器。 从每个声音传感器到音频传感器位置的传递功能是固有的。 该方法考虑在传感器位置处记录噪声，并且基于从每个声音换能器到传感器位置的固有传递函数，从每个声音换能器到传感器位置创建虚拟传递函数。 音频信号通过虚拟声音传感器处理，以传感器位置传递功能。 通过将通过虚拟声音传感器处理的音频信号与传感器位置传递函数与传感器位置处记录的噪声组合来创建虚拟传感器信号。

公开(公告)号：US5359663A

公开(公告)日：1994-10-25

申请号：US117513

申请日：1993-09-02

申请人： Richard A. Katz

发明人： Richard A. Katz

IPC分类号： G10K11/178 ,  G10K11/16

CPC分类号： G10K11/178 ,  G10K2210/127 ,  G10K2210/3048 ,  G10K2210/3229

摘要： A method of detecting the onset of turbulence in connection with a body mng through a fluid medium and reducing turbulence noise in acoustic sensor systems carried thereby. First, the body is supplied with sensors each for generating a signal suitable for measuring amplitude of pressure fluctuations of the medium proximate a region of said sidewall of the body in at least a region of the body in which turbulence is expected to occur. During a reference stage during which the body moves through the fluid medium when it is known that turbulence is occurring around at least a portion of said body, the sensors each generate reference temporal pressure data representing fluctuations in pressure of the fluid medium around said body. In response to reference temporal pressure data generated by sensors in a turbulence zone at which turbulence is occurring and sensors in a transition zone between the turbulence zone and a laminar flow zone, method-of-delay phase portraits are generated for a progression of selected delay intervals. During an operational stage, the signals from the sensors are filtered to generate a portion representing the turbulence due to motion of the body through the medium and a portion representing signals from external acoustic signal sources, and the turbulence signal portion is used to generate signals of appropriate phase which are injected into the medium to reduce the turbulence noise signals.

摘要翻译： 检测与通过流体介质移动的物体相关的湍流的发生并降低由此携带的声学传感器系统中的湍流噪声的方法。 首先，向身体提供传感器，每个传感器用于产生适合于在预期发生湍流的身体的至少一个区域中测量靠近身体的所述侧壁的区域的介质的压力波动的幅度的信号。 在已知在所述主体的至少一部分周围发生湍流的参考阶段期间，身体移动通过流体介质，传感器每个生成表示围绕所述主体的流体介质的压力波动的参考时间压力数据。 响应于在湍流发生的湍流区域中的传感器产生的参考时间压力数据和在湍流区域和层流区域之间的过渡区域中的传感器，产生延迟相位画像以用于所选延迟的进展 间隔 在操作阶段期间，来自传感器的信号被过滤以产生表示由身体通过介质的运动引起的湍流的部分和表示来自外部声信号源的信号的部分，并且湍流信号部分用于产生 适当的相位注入到介质中以减少湍流噪声信号。

公开(公告)号：US20150172572A1

公开(公告)日：2015-06-18

申请号：US14298617

申请日：2014-06-06

申请人： SAMSUNG ELECTRO-MECHANICS CO., LTD.

发明人： Joo Hyun KIM

IPC分类号： H04N5/357 ,  G10K11/175 ,  H04N5/232

CPC分类号： H04N5/357 ,  G02B27/646 ,  G10K11/175 ,  G10K11/17823 ,  G10K2210/1291 ,  G10K2210/3033 ,  G10K2210/3048 ,  H04N5/217 ,  H04N5/23258 ,  H04N5/2328

摘要： Embodiments of the invention provide an apparatus for noise cancellation of an optical image stabilizer, which includes a motion sensor configured to sense a motion, a microphone configured to acquire a sound, a speaker configured to output a sound, and a controller. The controller is configured to determine whether at least one predetermined condition is satisfied based on at least one signal input from the motion sensor and the microphone, when it is determined that the at least one predetermined condition is satisfied, to periodically operate the optical image stabilizer to store one or more noises generated from an actuator within the optical image stabilizer and driving information of the actuator in a memory, and then, when the optical image stabilizer is normally operated, to acquire the one or more noises corresponding to the driving information of the actuator from the memory, and to generate a canceling noise and to output the generated canceling noise through the speaker.

摘要翻译： 本发明的实施例提供了一种用于光学图像稳定器的噪声消除的装置，其包括被配置为感测运动的运动传感器，被配置为获取声音的麦克风，被配置为输出声音的扬声器和控制器。 控制器被配置为基于从运动传感器和麦克风输入的至少一个信号来确定是否满足至少一个预定条件，当确定满足至少一个预定条件时，周期性地操作光学图像稳定器 将来自光学图像稳定器中的致动器的一个或多个噪声存储在存储器中，然后，当光学图像稳定器正常操作时，获取与驱动信息对应的一个或多个噪声 来自存储器的致动器，并且产生消除噪声并通过扬声器输出产生的消除噪声。

公开(公告)号：US20120288112A1

公开(公告)日：2012-11-15

申请号：US13465502

申请日：2012-05-07

申请人： Chengpeng YANG ,  Baosheng Li

发明人： Chengpeng YANG ,  Baosheng Li

IPC分类号： G10K11/16

CPC分类号： G10K11/178 ,  G10K2210/109 ,  G10K2210/121 ,  G10K2210/3033 ,  G10K2210/3048 ,  G10K2210/3055

摘要： A method for controlling noise of a rotating device includes: obtaining a sound wave signal of noise generated by the rotating device, where the sound wave signal is fed back by a reference sensor; obtaining rotational speed information of the rotating device; and searching a predefined function mapping table according to the rotational speed information to obtain transfer functions; generating a sound emitting command according to the transfer functions and the sound wave signal; and sending the sound emitting command to a secondary source emitting device, so that the secondary source emitting device emits a secondary sound wave, where the secondary sound wave is used to suppress the noise generated by the rotating device.

摘要翻译： 一种用于控制旋转装置的噪声的方法包括：获得由旋转装置产生的噪声的声波信号，其中声波信号由参考传感器反馈; 获得旋转装置的转速信息; 并根据转速信息搜索预定义的功能映射表以获得传递函数; 根据传递函数和声波信号产生发声指令; 并将声音发射命令发送到次级源发射装置，使得次级源发射装置发射次声波，其中次声波用于抑制由旋转装置产生的噪声。

公开(公告)号：US20020136415A1

公开(公告)日：2002-09-26

申请号：US10061589

申请日：2002-02-01

申请人： Siemens VDO Automotive, Inc.

发明人： Paul D. Daly

IPC分类号： A61F011/06 ,  G10K011/16 ,  H03B029/00

CPC分类号： G10K11/178 ,  G10K2210/1282 ,  G10K2210/12822 ,  G10K2210/3033 ,  G10K2210/30351 ,  G10K2210/3048

摘要： An active noise cancellation system is operative to reduce noise transmission through a vehicle air induction system. The active noise cancellation system includes a controller that utilizes computer modelling to ensure adequate noise cancellation. The controller generates a modelling sound to make determinations regarding the noise cancellation system, such as timing constraints associated with a speaker or microphone of the system. The modelling sound is selected to be consistent with a sound typically heard by an individual, given the current engine operating status. In another example, the selected sound masks another modeling sound such as random noise.

摘要翻译： 有源噪声消除系统可操作以减少通过车辆空气感应系统的噪声传播。 主动噪声消除系统包括利用计算机建模来确保足够的噪声消除的控制器。 控制器产生建模声音，以便对噪声消除系统进行确定，例如与系统的扬声器或麦克风相关联的时序约束。 鉴于当前的发动机运行状态，建模声音被选择为与个人通常听到的声音一致。 在另一示例中，所选择的声音掩盖另外的建模声音，例如随机噪声。