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1. 发明授权

US09747885B2 Noise reduction system 有权
公开(公告)号：US09747885B2
公开(公告)日：2017-08-29
申请号：US15066112
申请日：2016-03-10
申请人： Kabushiki Kaisha Toshiba
发明人： Tatsuhiko Goto , Osamu Nishimura , Akihiko Enamito
IPC分类号： G10K11/178
CPC分类号： G10K11/178 , G10K11/17813 , G10K11/17853 , G10K2210/1161 , G10K2210/3016 , G10K2210/3028
摘要： According to one embodiment, a noise reduction system for reducing noise including impact noise repetitively generated at a time interval includes the following elements. The error signal generator generates an error signal based on the noise being detected. The delay signal generator has a time delay characteristic and delays a signal, which is generated based on the error signal, to generate a delay signal, the time delay characteristic being determined based on an imaging sequence or pre-scanning by the MRI device and corresponding to the time interval. The control filter generates the first control signal from the delay signal. The loudspeaker unit includes at least one pair of a first filter and a control loudspeaker and a transmission unit.

2. 发明授权

US09728179B2 Calibration and stabilization of an active noise cancelation system 有权
公开(公告)号：US09728179B2
公开(公告)日：2017-08-08
申请号：US14885876
申请日：2015-10-16
申请人： AVNERA CORPORATION
发明人： Amit Kumar , Thomas Irrgang , Shankar Rathoud , Eric Sorensen
IPC分类号： G10K11/178
CPC分类号： G10K11/178 , G10K11/17813 , G10K11/1788 , G10K11/17881 , G10K2210/1081 , G10K2210/3025 , G10K2210/3026 , G10K2210/3027 , G10K2210/3045 , G10K2210/3055 , G10K2210/3056 , G10K2210/3214 , G10K2210/504 , H04R1/1083 , H04R29/00 , H04R2460/01
摘要： A method of calibrating an earphone may include: securing an ANC earphone to a calibration fixture, the calibration fixture including an ear model configured to support the ANC earphone, the ear model having an ear canal configured to anatomically resemble a human ear canal and a concha configured to anatomically resemble a human ear concha, the ear canal extending from the concha to an inner end of the ear canal; generating, with the ANC earphone, an audio signal based on a reference tone; determining a characteristic of the audio signal; comparing the characteristic of the audio signal to a previously determined reference characteristic; and adjusting a gain value of the ANC earphone based on the comparing. Additional methods and apparatus are also disclosed.

3. 发明申请

US20170110106A1 CALIBRATION AND STABILIZATION OF AN ACTIVE NOTICE CANCELATION SYSTEM 有权
公开(公告)号：US20170110106A1
公开(公告)日：2017-04-20
申请号：US14885876
申请日：2015-10-16
申请人： AVNERA CORPORATION
发明人： AMIT KUMAR , THOMAS IRRGANG , SHANKAR RATHOUD , ERIC SORENSEN
IPC分类号： G10K11/178
CPC分类号： G10K11/178 , G10K11/17813 , G10K11/1788 , G10K11/17881 , G10K2210/1081 , G10K2210/3025 , G10K2210/3026 , G10K2210/3027 , G10K2210/3045 , G10K2210/3055 , G10K2210/3056 , G10K2210/3214 , G10K2210/504 , H04R1/1083 , H04R29/00 , H04R2460/01
摘要： A method of calibrating an earphone may include: securing an ANC earphone to a calibration fixture, the calibration fixture including an ear model configured to support the ANC earphone, the ear model having an ear canal configured to anatomically resemble a human ear canal and a concha configured to anatomically resemble a human ear concha, the ear canal extending from the concha to an inner end of the ear canal; generating, with the ANC earphone, an audio signal based on a reference tone; determining a characteristic of the audio signal; comparing the characteristic of the audio signal to a previously determined reference characteristic; and adjusting a gain value of the ANC earphone based on the comparing. Additional methods and apparatus are also disclosed.

4. 发明授权

US09495952B2 Electronic devices for controlling noise 有权
标题翻译：用于控制噪音的电子设备
公开(公告)号：US09495952B2
公开(公告)日：2016-11-15
申请号：US13569031
申请日：2012-08-07
申请人： Hyun Jin Park , Brian Lee Momeyer , Jeremy Patrick Toman , Kwokleung Chan , Hui-ya Liao Nelson , Louis Dominic Oliveira
发明人： Hyun Jin Park , Brian Lee Momeyer , Jeremy Patrick Toman , Kwokleung Chan , Hui-ya Liao Nelson , Louis Dominic Oliveira
IPC分类号： A61F11/06 , G10K11/16 , H03B29/00 , G10K11/178
CPC分类号： G10K11/1788 , G10K11/178 , G10K11/17813 , G10K11/17854 , G10K2210/1053 , G10K2210/1081 , G10K2210/129 , G10K2210/3055 , G10K2210/321 , G10K2210/501 , G10K2210/504
摘要： An electronic device for controlling noise is described. The electronic device includes a force sensor for detecting a force on the electronic device. The electronic device also includes noise control circuitry for generating a noise control signal based on a noise signal and the force. Another electronic device for controlling noise is also described. The electronic device includes a speaker that outputs a runtime ultrasound signal, an error microphone that receives a runtime ultrasound channel signal and noise control circuitry coupled to the speaker and to the error microphone. The noise control circuitry determines at least one calibration parameter and determines a runtime channel response based on the runtime ultrasound channel signal. The noise control circuitry also determines a runtime placement based on the runtime channel response and the at least one calibration parameter and determines at least one runtime active noise control parameter based on the runtime placement.
摘要翻译：描述了一种用于控制噪声的电子设备。电子设备包括用于检测电子设备上的力的力传感器。电子设备还包括用于基于噪声信号和力产生噪声控制信号的噪声控制电路。还描述了另一种用于控制噪声的电子设备。电子设备包括输出运行时超声信号的扬声器，接收运行时超声波信号的误差麦克风和耦合到扬声器和误差麦克风的噪声控制电路。噪声控制电路确定至少一个校准参数并且基于运行时超声波信号确定运行时间段信道响应。噪声控制电路还基于运行时间通道响应和至少一个校准参数来确定运行时间位置，并且基于运行时位置来确定至少一个运行时主动噪声控制参数。

5. 发明申请

US20160133244A1 SYSTEMS AND METHODS FOR CONTROLLING NOISE IN A VEHICLE 有权
标题翻译：用于控制车辆噪声的系统和方法
公开(公告)号：US20160133244A1
公开(公告)日：2016-05-12
申请号：US14538152
申请日：2014-11-11
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： ELI TZIRKEL-HANCOCK , SCOTT M. REILLY
IPC分类号： G10K11/175 , G10L21/0208
CPC分类号： G10K11/175 , G10K11/178 , G10K11/17813 , G10K11/17881 , G10K2210/128 , G10K2210/1281 , G10K2210/1282 , G10K2210/3055 , G10L21/0208
摘要： Methods and apparatus are provided for controlling noise in a compartment. The audio system includes an error microphone configured to receive sounds and generate an error signal corresponding to the received sounds. A processor in communication with the error microphone is configured receive the error signal from the error microphone and generate a noise-canceling signal based at least in part on the error signal and an acoustic transfer function. The audio system also includes a loudspeaker in communication with the processor to receive the noise-canceling signal and produce a noise-canceling sound wave based on the noise-canceling signal. The processor is also configured to receive at least one audio signal different from the error signal and to modify the acoustic transfer function utilizing the at least one audio signal.
摘要翻译：提供了用于控制隔室中的噪声的方法和装置。音频系统包括被配置为接收声音并产生对应于接收的声音的错误信号的误差麦克风。与误差麦克风通信的处理器被配置为从误差麦克风接收误差信号，并且至少部分地基于误差信号和声音传递函数产生噪声消除信号。音频系统还包括与处理器通信的扬声器，以接收噪声消除信号，并且基于噪声消除信号产生噪声消除声波。处理器还被配置为接收不同于误差信号的至少一个音频信号，并且利用至少一个音频信号来修改声学传递函数。

6. 发明授权

US08280069B2 Noise reduction apparatus 有权
标题翻译：降噪装置
公开(公告)号：US08280069B2
公开(公告)日：2012-10-02
申请号：US12705743
申请日：2010-02-15
申请人： Tsuyoshi Maeda , Yoshifumi Asao , Hiroyuki Kano
发明人： Tsuyoshi Maeda , Yoshifumi Asao , Hiroyuki Kano
IPC分类号： H04R3/02
CPC分类号： G10K11/17813 , G10K11/1785 , G10K11/17857 , G10K2210/1281 , G10K2210/3027 , G10K2210/3028 , G10K2210/3051 , G10K2210/3219
摘要： In a noise reduction apparatus for controlling noise up to a predetermined upper limited frequency, a distance from a noise source to control point X is made larger than a distance obtained by subtracting a one-half wavelength from a distance, obtained by adding up a distance from the noise source to a noise detecting microphone, a distance corresponding to time as a sum of respective delay time of the noise detecting microphone, a noise controller, and a control speaker, and a distance from the control speaker to control point X, where one wavelength is a period corresponding to the upper limited frequency.
摘要翻译：在用于控制高达预定的上限频率的噪声的降噪装置中，从噪声源到控制点X的距离大于通过从距离中减去一半波长而获得的距离，该距离是通过将距离从噪声源到噪声检测麦克风，与噪声检测麦克风，噪声控制器和控制扬声器的各个延迟时间之和以及从控制扬声器到控制点X的距离的时间对应的距离，其中一个波长是对应于上限频率的周期。

7. 发明申请

US20180319491A1 Systems and Methods for Acoustic Radiation Control 审中-公开
公开(公告)号：US20180319491A1
公开(公告)日：2018-11-08
申请号：US15588977
申请日：2017-05-08
申请人： Aurora Flight Sciences Corporation
发明人： Martin Kearney-Fischer
IPC分类号： B64C27/57 , B64C11/30 , B64C39/02 , G10K11/175
CPC分类号： B64C27/57 , B64C11/305 , B64C11/46 , B64C39/024 , B64C2027/7205 , B64C2201/024 , B64C2220/00 , G10K11/175 , G10K11/1781 , G10K11/17813 , G10K2200/10 , G10K2210/1281
摘要： Disclosed is a system for controlling acoustic radiation from an aircraft. The system comprising a plurality of rotor systems (one or more) and a noise controller configured to regulate acoustic radiation from the plurality of rotor systems. The noise controller can be configured to regulate a commanded flight setting from the flight control system and to output a regulated flight setting to the plurality of rotor systems. Based on the regulated flight setting, the plurality of rotor systems are configured to generate, individually and in aggregate, acoustic radiation having a target acoustic behavior. The target acoustic behavior may be achieved using beamforming techniques to, for example, change the directionality of acoustic radiation from the plurality of rotor systems, or otherwise tune the acoustic radiation to reduce detectability and/or annoyance.

8. 发明申请

US20160284338A1 NOISE REDUCTION SYSTEM 有权
标题翻译：噪声减少系统
公开(公告)号：US20160284338A1
公开(公告)日：2016-09-29
申请号：US15066112
申请日：2016-03-10
申请人： Kabushiki Kaisha Toshiba
发明人： Tatsuhiko GOTO , Osamu Nishimura , Akihiko Enamito
IPC分类号： G10K11/178
CPC分类号： G10K11/178 , G10K11/17813 , G10K11/17853 , G10K2210/1161 , G10K2210/3016 , G10K2210/3028
摘要： According to one embodiment, a noise reduction system for reducing noise including impact noise repetitively generated at a time interval includes the following elements. The error signal generator generates an error signal based on the noise being detected. The delay signal generator has a time delay characteristic and delays a signal, which is generated based on the error signal, to generate a delay signal, the time delay characteristic being determined based on an imaging sequence or pre-scanning by the MRI device and corresponding to the time interval. The control filter generates the first control signal from the delay signal. The loudspeaker unit includes at least one pair of a first filter and a control loudspeaker and a transmission unit.
摘要翻译：根据一个实施例，用于降低包括在时间间隔反复产生的冲击噪声的噪声的降噪系统包括以下元件。误差信号发生器根据检测到的噪声产生误差信号。延迟信号发生器具有时间延迟特性，并且延迟基于误差信号产生的信号以产生延迟信号，该延时特性是基于成像序列确定的，或者由MRI装置进行预扫描和对应的到时间间隔。控制滤波器从延迟信号产生第一控制信号。扬声器单元包括至少一对第一滤波器和控制扬声器以及传输单元。

9. 发明授权

US09454952B2 Systems and methods for controlling noise in a vehicle 有权
标题翻译：用于控制车辆噪声的系统和方法
公开(公告)号：US09454952B2
公开(公告)日：2016-09-27
申请号：US14538152
申请日：2014-11-11
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Eli Tzirkel-Hancock , Scott M. Reilly
IPC分类号： G10K11/16 , G10K11/175 , G10L21/0208
CPC分类号： G10K11/175 , G10K11/178 , G10K11/17813 , G10K11/17881 , G10K2210/128 , G10K2210/1281 , G10K2210/1282 , G10K2210/3055 , G10L21/0208
摘要： Methods and apparatus are provided for controlling noise in a compartment. The audio system includes an error microphone configured to receive sounds and generate an error signal corresponding to the received sounds. A processor in communication with the error microphone is configured receive the error signal from the error microphone and generate a noise-canceling signal based at least in part on the error signal and an acoustic transfer function. The audio system also includes a loudspeaker in communication with the processor to receive the noise-canceling signal and produce a noise-canceling sound wave based on the noise-canceling signal. The processor is also configured to receive at least one audio signal different from the error signal and to modify the acoustic transfer function utilizing the at least one audio signal.
摘要翻译：提供了用于控制隔室中的噪声的方法和装置。音频系统包括被配置为接收声音并产生对应于接收的声音的错误信号的误差麦克风。与误差麦克风通信的处理器被配置为从误差麦克风接收误差信号，并且至少部分地基于误差信号和声音传递函数产生噪声消除信号。音频系统还包括与处理器通信的扬声器，以接收噪声消除信号，并且基于噪声消除信号产生噪声消除声波。处理器还被配置为接收不同于误差信号的至少一个音频信号，并且利用至少一个音频信号来修改声学传递函数。

10. 发明申请

US20140270220A1 AIRCRAFT PREDICTIVE ACTIVE NOISE CANCELLATION 有权
标题翻译：飞机预测主动噪声消除
公开(公告)号：US20140270220A1
公开(公告)日：2014-09-18
申请号：US14212003
申请日：2014-03-14
申请人： Virgin America Inc.
发明人： Kenneth Hal Bieler
IPC分类号： G10K11/16
CPC分类号： G10K11/178 , G10K11/17813 , G10K11/17873 , G10K11/17885 , G10K2210/1081 , G10K2210/1281 , G10K2210/3055
摘要： An improved user experience is provided for passengers of a transportation vessel, such as an airplane. A passenger's experience is enhanced by allowing the passenger to enjoy media provided by an entertainment device without ambient noise. When the passenger requests accesses to a media item through the entertainment device, a microphone in the entertainment system generates an ambient noise signal based on captured ambient noise. A noise cancellation device generates a predictive noise cancelling signal based on the ambient noise signal. To generate the predictive noise cancelling signal, the noise cancellation device inverts the ambient noise signal and applies a predictive phase shift to the signal based on an estimated distance between the microphone and the passenger's ears. The noise cancelling signal is mixed with audio of the media item.
摘要翻译：为诸如飞机的运输船的乘客提供改进的用户体验。通过允许乘客享受娱乐设备提供的媒体，无环境噪声，可增强乘客的体验。当乘客通过娱乐设备请求访问媒体项目时，娱乐系统中的麦克风基于所捕获的环境噪声产生环境噪声信号。噪声消除装置基于环境噪声信号产生预测噪声消除信号。为了产生预测噪声消除信号，噪声消除装置反转环境噪声信号，并且基于麦克风和乘客耳朵之间的估计距离向信号施加预测相移。噪声消除信号与媒体项目的音频混合。

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