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    SOUND-DEPENDENT ANR SIGNAL PROCESSING ADJUSTMENT
    3.
    发明申请
    SOUND-DEPENDENT ANR SIGNAL PROCESSING ADJUSTMENT 审中-公开
    声音依赖ANR信号处理调整

    公开(公告)号：WO2010129272A1

    公开(公告)日：2010-11-11

    申请号：PCT/US2010/032557

    申请日：2010-04-27

    Applicant: BOSE CORPORATION ,  CARRERAS, Ricardo, F. ,  BAKALOS, Pericles, Nicholas ,  GAUGER, Daniel, M. ,  HARLOW, Jason

    Inventor： CARRERAS, Ricardo, F. ,  BAKALOS, Pericles, Nicholas ,  GAUGER, Daniel, M. ,  HARLOW, Jason

    IPC: G10K11/178

    CPC classification number: H04B1/202 ,  G10K11/178 ,  G10K2210/1081 ,  G10K2210/30391 ,  G10K2210/3056 ,  G10K2210/3214 ,  G10K2210/503 ,  H04R1/1016 ,  H04R1/2803 ,  H04R2460/11

    Abstract: An ANR circuit employs first, second and third buffers to buffer ANR settings in preparation for configuring one or more components of the ANR circuit during operation and in synchronization with the transfer of at least one piece of digital data within the ANR circuit. The first and second buffers are alternately used to carry out such configuring, while the third buffer stores a "failsafe" ANR settings to be automatically used in configuring the one or more components of the ANR circuit in response to an indication of instability in the provision feedback-based ANR, feedforward-based ANR and/or pass-through audio being detected. Apparatus and method of an ANR circuit of compressing both feedforward and feedback reference sounds detected by feedforward and feedback microphones, respectively, in response to the acoustic energy of the feedforward reference noise sound reaching a predetermined level. Apparatus and method of controlling provision of ANR, possibly of a personal ANR device, in which amplitudes of a piece of audio employed in the provision of ANR are monitored, and the compression of one or both of feedback and feedforward ANR reference sounds is made dependent on frequency such that a first sound of one frequency need only reach a lower amplitude to trigger compression, while a second sound of another frequency must reach a higher amplitude to trigger compression. Apparatus and method of reducing the provision of ANR at an one end of a range of frequencies at which the ANR is provided without reducing the provision of the ANR at the other end of the range of frequencies by repeatedly reconfiguring coefficients of one or more digital filters to reduce the provision of ANR at the one end in increments at a first recurring interval, and then later reversing the reduction in the provision of the ANR at the one end by repeatedly reconfiguring coefficients of the one or more digital filters in increments at a second recurring interval. Apparatus and method of an ANR circuit detecting instances of instability in at least the provision of feedback-based ANR, monitoring audio that includes feedback anti-noise sounds for acoustic output by an acoustic driver for a sound having characteristics indicative of instability including at least a frequency within a range of frequencies and an amplitude reaching at least a predetermined minimum amplitude, and perhaps also a sinusoidal waveform.

    Abstract translation: ANR电路采用第一，第二和第三缓冲器来缓冲ANR设置，以准备在运行期间配置ANR电路的一个或多个组件，并与ANR电路内的至少一个数字数据的传送同步。 交替使用第一和第二缓冲器来执行这种配置，而第三缓冲器存储“故障安全”ANR设置，以响应于该条款中的不稳定性的指示而自动用于配置ANR电路的一个或多个组件 正在检测的基于反馈的ANR，基于前馈的ANR和/或直通音频。 ANR电路的装置和方法，分别响应于前馈参考噪声声音达到预定水平的声能，分别压缩由前馈和反馈麦克风检测的前馈和反馈参考声音。 控制提供ANR（可能是个人ANR设备）的设备和方法，其中监视在提供ANR中使用的一段音频的幅度，并且使反馈和前馈ANR参考声音中的一个或两个的压缩被依赖 频率使得一个频率的第一声音仅需要达到较低的幅度来触发压缩，而另一频率的第二声音必须达到更高的振幅才能触发压缩。 减少在提供ANR的频率范围的一端提供ANR的装置和方法，而不通过重复地重新配置一个或多个数字滤波器的系数来减少频率范围的另一端的ANR的提供 以减少以第一重复间隔的增量在一端的ANR的提供，然后通过在第二周期以增量反复重新配置一个或多个数字滤波器的系数来反转在一端提供ANR的减少 重复间隔。 ANR电路的装置和方法至少检测提供基于反馈的ANR中的不稳定性，监测音频，其包括反馈噪声声音，用于声学驱动器的声输出，用于具有指示不稳定性的声音，所述特性包括至少一个 在频率范围内的频率和达到至少预定的最小幅度的振幅，以及也许是正弦波形。

    PRESSURE-RELATED FEEDBACK INSTABILITY MITIGATION
    4.
    发明申请
    PRESSURE-RELATED FEEDBACK INSTABILITY MITIGATION 审中-公开
    压力相关反馈不稳定性减轻

    公开(公告)号：WO2013184357A3

    公开(公告)日：2014-02-27

    申请号：PCT/US2013042232

    申请日：2013-05-22

    Applicant: BOSE CORP ,  BAKALOS PERICLES N

    Inventor： BAKALOS PERICLES N

    IPC: G10K11/178 ,  H04R1/10

    CPC classification number: G10K11/178 ,  G10K2210/1081 ,  H04R1/1083

    Abstract: An apparatus includes a member configured to form an acoustic seal around a portion of an acoustic environment, and active noise reduction circuitry. The active noise reduction circuitry includes: detection circuitry configured to detect a change in pressure within the acoustic environment caused by movement of the member, and gain compensation circuitry configured to change a loop gain of a feedback loop in response to the detected change in pressure.

    Abstract translation: 一种装置包括构造成围绕声环境的一部分形成声学密封的构件以及主动降噪电路。 有源噪声降低电路包括：检测电路，被配置为检测由该构件的移动引起的在声环境内的压力变化;以及增益补偿电路，其配置成响应于检测到的压力变化而改变反馈回路​​的环路增益。

    PRESSURE-RELATED FEEDBACK INSTABILITY MITIGATION
    5.
    发明申请
    PRESSURE-RELATED FEEDBACK INSTABILITY MITIGATION 审中-公开
    压力相关反馈不稳定性减轻

    公开(公告)号：WO2013184357A2

    公开(公告)日：2013-12-12

    申请号：PCT/US2013/042232

    申请日：2013-05-22

    Applicant: BOSE CORPORATION ,  BAKALOS, Pericles N.

    Inventor： BAKALOS, Pericles N.

    IPC: G10K11/178

    CPC classification number: G10K11/178 ,  G10K2210/1081 ,  H04R1/1083

    Abstract: An apparatus includes a member configured to form an acoustic seal around a portion of an acoustic environment, and active noise reduction circuitry. The active noise reduction circuitry includes: detection circuitry configured to detect a change in pressure within the acoustic environment caused by movement of the member, and gain compensation circuitry configured to change a loop gain of a feedback loop in response to the detected change in pressure.

    Abstract translation: 一种装置包括构造成围绕声环境的一部分形成声学密封的构件以及主动降噪电路。 有源噪声降低电路包括：检测电路，被配置为检测由该构件的移动引起的在声环境内的压力变化;以及增益补偿电路，其配置成响应于检测到的压力变化而改变反馈回路​​的环路增益。

    ADAPTIVE FEED-FORWARD NOISE REDUCTION
    7.
    发明申请
    ADAPTIVE FEED-FORWARD NOISE REDUCTION 审中-公开
    自适应进给噪声减少

    公开(公告)号：WO2012134874A1

    公开(公告)日：2012-10-04

    申请号：PCT/US2012/029747

    申请日：2012-03-20

    Applicant: BOSE CORPORATION ,  BAKALOS, Pericles ,  PARTHASARATHI, Anand

    Inventor： BAKALOS, Pericles ,  PARTHASARATHI, Anand

    IPC: H04R1/10 ,  G10K11/178

    CPC classification number: H04R1/1083 ,  G10K11/178 ,  G10K2210/1081 ,  G10K2210/30391

    Abstract: The invention features an active noise reduction device (300) including an electronic signal processing circuit. The electronic signal processing circuit includes a first input (216) for accepting a first signal (104), a second input (106) for accepting a second signal, an output (112) for providing a third signal, a feed- forward path (220) from the first input to the output, and a feed- forward controller (326) for determining the control parameter (324) by calculating a control signal using the first signal and the second signal and then using the control signal to determine the control parameter. The feed- forward path includes a fixed compensation linear filter (218) and a variable compensation filter (322) having an input for receiving a control parameter that applies a selected linear filter from a family of linear filters that vary in both gain and spectral shape and are selectable by the control parameter.

    Abstract translation: 本发明的特征在于包括电子信号处理电路的主动降噪装置（300）。 电子信号处理电路包括用于接受第一信号的第一输入端（216），用于接收第二信号的第二输入端（106），用于提供第三信号的输出端（112），前馈路径 220），以及前馈控制器（326），用于通过使用所述第一信号和所述第二信号计算控制信号来确定所述控制参数（324），然后使用所述控制信号来确定所述控制参数 参数。 前馈路径包括固定补偿线性滤波器（218）和可变补偿滤波器（322），该可变补偿滤波器（322）具有用于接收控制参数的输入，所述控制参数从增益和频谱形状两者变化的线性滤波器系列中应用所选择的线性滤波器 并可由控制参数选择。

    PASSIVE HEADPHONE EQUALIZING
    8.
    发明申请
    PASSIVE HEADPHONE EQUALIZING 审中-公开
    无源耳机均衡

    公开(公告)号：WO2008083148A3

    公开(公告)日：2008-08-28

    申请号：PCT/US2007088805

    申请日：2007-12-26

    Applicant: BOSE CORP ,  BAKALOS PERICLES NICHOLAS ,  SAPIEJEWSKI ROMAN ,  HARLOW JASON M

    Inventor： BAKALOS PERICLES NICHOLAS ,  SAPIEJEWSKI ROMAN ,  HARLOW JASON M

    IPC: H03F1/22

    CPC classification number: H04R3/04 ,  H04R5/033

    Abstract: An electrical equalization module that is second order or higher. The equalization module is used to achieve a desired frequency response for audio headphones. The equalization module includes capacitors or inductors. The equalization module is a bridged-T circuit, parallel RLC circuit, or series RLC circuit.

    Abstract translation: 一个二阶以上的电气均衡模块。 均衡模块用于实现音频耳机所需的频率响应。 均衡模块包括电容器或电感器。 均衡模块是桥接T电路，并联RLC电路或串联RLC电路。

    INSTABILITY DETECTION AND AVOIDANCE IN A FEEDBACK SYSTEM
    10.
    发明申请
    INSTABILITY DETECTION AND AVOIDANCE IN A FEEDBACK SYSTEM 审中-公开
    反馈系统中的不稳定性检测和避免

    公开(公告)号：WO2013052327A2

    公开(公告)日：2013-04-11

    申请号：PCT/US2012/057250

    申请日：2012-09-26

    Applicant: BOSE CORPORATION ,  BAKALOS, Pericles ,  PARTHASARATHI, Anand

    Inventor： BAKALOS, Pericles ,  PARTHASARATHI, Anand

    IPC: G10K11/178

    CPC classification number: G10K11/1788 ,  G10K11/178 ,  G10K2210/1081 ,  G10K2210/3026 ,  G10K2210/3028 ,  G10K2210/503 ,  H04R1/1083 ,  H04R3/02 ,  H04R2460/01 ,  H04R2460/15

    Abstract: In one aspect, in general, an active noise reduction system detects actual or potential instability by detecting characteristics of the system related to potential or actual unstable behavior (e.g., oscillation) and adapts system characteristics to mitigate such instability. In some examples, the system adapts to variation in characteristics of an acoustic component of a feedback path that has or may induce unstable behavior to improve a users acoustic experience.

    Abstract translation: 在一个方面，通常，主动降噪系统通过检测与潜在或实际不稳定行为（例如，振荡）相关的系统的特性来检测实际或潜在的不稳定性，并且调整系统特性以减轻这样的影响 不稳定。 在一些示例中，系统适应于反馈路径的声学组件的特性的变化，所述反馈路径的声学组件具有或可能导致不稳定的行为以改善用户听觉体验。

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