Active noise control system
    1.
    发明授权
    Active noise control system 失效
    主动噪声控制系统

    公开(公告)号:US5359662A

    公开(公告)日:1994-10-25

    申请号:US875775

    申请日:1992-04-29

    IPC分类号: G10K11/178 G10K11/16

    摘要: A active noise control system is described for attenuating an undesirable noise that containing multiple noise components having different frequencies. The system includes a configuration of signal generators and corresponding paired adaptive filters. Each signal generator produces a generator output signal containing one or more sinusoidal signal components, with each signal component having a frequency corresponding to a respective one of the noise frequency components. Separate signal generators are used to produce those sinusoidal components having frequencies corresponding to noise component that are adjacent with respect to their frequencies. Each adaptive filter operates on the generator output signal produced by its corresponding paired signal generator in accordance with its filtering characteristics to provide a respective filtered output signal. The filtered output signals from each adaptive filter are summed to obtain an output canceling signal, which drives an actuator to produce output canceling waves that are superpositioned with the undesirable noise. An error sensor measures the level of residual noise resulting from the superposition of the canceling waves and the undesirable noise, and provides an error signal for adapting the characteristics of the adaptive filters so as to minimize the level of residual noise.

    摘要翻译: 描述了一种主动噪声控制系统,用于衰减包含具有不同频率的多个噪声分量的不期望的噪声。 该系统包括信号发生器和相应的配对自适应滤波器的配置。 每个信号发生器产生包含一个或多个正弦信号分量的发生器输出信号,每个信号分量具有对应于噪声频率分量中的相应一个的频率。 单独的信号发生器用于产生具有对应于相对于其频率相邻的噪声分量的频率的那些正弦分量。 每个自适应滤波器根据其对应的配对信号发生器根据其滤波特性产生的发生器输出信号进行操作,以提供相应的滤波输出信号。 将来自每个自适应滤波器的经滤波的输出信号相加以获得输出抵消信号,其驱动致动器以产生与不期望的噪声叠加的输出消除波。 误差传感器测量由消除波的叠加和不期望的噪声引起的残余噪声的水平,并且提供用于适应自适应滤波器的特性的误差信号,以便使残余噪声的水平最小化。

    Electronic pillow for abating snoring/environmental noises, hands-free communications, and non-invasive monitoring and recording
    2.
    发明授权
    Electronic pillow for abating snoring/environmental noises, hands-free communications, and non-invasive monitoring and recording 有权
    用于减轻打鼾/环境噪音的电子枕头,免提通讯和非侵入性监测和记录

    公开(公告)号:US08325934B2

    公开(公告)日:2012-12-04

    申请号:US11952250

    申请日:2007-12-07

    申请人: Sen M. Kuo

    发明人: Sen M. Kuo

    IPC分类号: A47C20/00

    摘要: An electronic pillow including a pillow unit encasing at least one error microphone and at least one loudspeaker in electrical connection with a controller unit, the pillow unit also including a power source, and a reference sensing unit including at least one reference microphone in electrical connection with the controller unit, the controller unit including an algorithm for controlling interactions between the error microphone, loudspeaker, and reference microphone. A method of abating unwanted noise, by detecting an unwanted noise with a reference microphone, analyzing the unwanted noise, producing an anti-noise corresponding to the unwanted noise in a pillow, and abating the unwanted noise. Methods of hands-free communication, recording and monitoring sleep disorders, providing real-time response to emergencies, and playing audio sounds.

    摘要翻译: 一种电子枕头,包括包围至少一个误差麦克风的枕头单元和与控制器单元电连接的至少一个扬声器,所述枕头单元还包括电源,以及参考感测单元,其包括至少一个参考麦克风,其与 控制器单元,控制器单元包括用于控制误差麦克风,扬声器和参考麦克风之间的相互作用的算法。 通过用参考麦克风检测不想要的噪声,分析不需要的噪声,产生对应于枕头中不需要的噪声的抗噪声,以及消除不想要的噪声的方法来减轻不需要的噪声。 免提通信方法,记录和监测睡眠障碍,提供对紧急情况的实时响应,以及播放音频声音。

    Active noise control system and method for on-line feedback path modeling
    3.
    发明授权
    Active noise control system and method for on-line feedback path modeling 失效
    主动噪声控制系统及在线反馈路径建模方法

    公开(公告)号:US06418227B1

    公开(公告)日:2002-07-09

    申请号:US08991726

    申请日:1997-12-16

    申请人: Sen M. Kuo

    发明人: Sen M. Kuo

    IPC分类号: A61F1106

    摘要: A feedforward active noise control system (50) is provided for generating an anti-noise signal to attenuate a noise signal provided through a media. The feedforward active noise control system (50) performs on-line feedback path modeling and feedback path neutralization and includes a reference sensor (16), a secondary source (18), an error sensor (20), and an active noise control system controller (10). The reference sensor (16) receives the noise signal and a feedback signal (22) and generates a primary signal x(n). The secondary source (18) receives a secondary signal s(n) and generates a corresponding anti-noise signal. The error sensor (20) receives a residual signal and generates an error signal e(n) in response. The active noise control system controller (10) receives the primary signal x(n) and the error signal e(n) and generates the secondary signal y(n) while performing on-line feedback path modeling.

    摘要翻译: 提供了一种用于产生抗噪声信号以衰减通过介质提供的噪声信号的前馈有源噪声控制系统(50)。 前馈有源噪声控制系统(50)执行在线反馈路径建模和反馈路径中和,并且包括参考传感器(16),次级源(18),误差传感器(20)和主动噪声控制系统控制器 (10)。 参考传感器(16)接收噪声信号和反馈信号(22)并产生主信号x(n)。 次级源(18)接收辅助信号s(n)并产生相应的抗噪声信号。 误差传感器(20)接收残留信号并产生响应中的误差信号e(n)。 主动噪声控制系统控制器(10)在执行在线反馈路径建模的同时接收主信号x(n)和误差信号e(n)并产生辅助信号y(n)。

    ELECTRONIC PILLOW FOR ABATING SNORING/ENVIRONMENTAL NOISES, HANDS-FREE COMMUNICATIONS, AND NON-INVASIVE MONITORING AND RECORDING
    4.
    发明申请
    ELECTRONIC PILLOW FOR ABATING SNORING/ENVIRONMENTAL NOISES, HANDS-FREE COMMUNICATIONS, AND NON-INVASIVE MONITORING AND RECORDING 有权
    电子枕头,用于刺激或环境噪声,无通信通信和非入网监控和记录

    公开(公告)号:US20090147965A1

    公开(公告)日:2009-06-11

    申请号:US11952250

    申请日:2007-12-07

    申请人: Sen M. Kuo

    发明人: Sen M. Kuo

    IPC分类号: G10K11/16 H04M1/00 G08B21/00

    摘要: An electronic pillow including a pillow unit encasing at least one error microphone and at least one loudspeaker in electrical connection with a controller unit, the pillow unit also including a power source, and a reference sensing unit including at least one reference microphone in electrical connection with the controller unit, the controller unit including an algorithm for controlling interactions between the error microphone, loudspeaker, and reference microphone. A method of abating unwanted noise, by detecting an unwanted noise with a reference microphone, analyzing the unwanted noise, producing an anti-noise corresponding to the unwanted noise in a pillow, and abating the unwanted noise. Methods of hands-free communication, recording and monitoring sleep disorders, providing real-time response to emergencies, and playing audio sounds.

    摘要翻译: 一种电子枕头,包括包围至少一个误差麦克风的枕头单元和与控制器单元电连接的至少一个扬声器,所述枕头单元还包括电源,以及参考感测单元,其包括至少一个参考麦克风,其与 控制器单元,控制器单元包括用于控制误差麦克风,扬声器和参考麦克风之间的相互作用的算法。 通过用参考麦克风检测不想要的噪声,分析不需要的噪声,产生对应于枕头中不需要的噪声的抗噪声,以及消除不想要的噪声的方法来减轻不需要的噪声。 免提通信方法,记录和监测睡眠障碍,提供对紧急情况的实时响应,以及播放音频声音。

    Indirectly sensed signal processing in active periodic acoustic noise
cancellation
    5.
    发明授权
    Indirectly sensed signal processing in active periodic acoustic noise cancellation 失效
    主动周期声学噪声消除中的间接感测信号处理

    公开(公告)号:US5502770A

    公开(公告)日:1996-03-26

    申请号:US158328

    申请日:1993-11-29

    IPC分类号: G10K11/178 G10K11/16

    摘要: The system employing and the processing of, an indirectly sensed signal representative of a periodic noise acoustic wave into an input signal for a noise cancelling system where the indirectly sensed signal is converted into a pulse signal per period that carries fundamental and harmonic frequency information of the periodic noise. A tachometer type RPM signal is processed in a counter circuit controlled by a logic circuit to produce a signal of one pulse per revolution with a controlled duration, the pulse amplitude is adjusted, the pulses are low pass filtered and any D.C. is blocked from the noise cancelling system input.

    摘要翻译: 该系统采用和表示代表周期性噪声声波的间接感测信号转换成噪声消除系统的输入信号,其中间接感测的信号在每个周期被转换为脉冲信号,每个周期承载基波和谐波频率信息 周期性噪音。 在由逻辑电路控制的计数器电路中处理转速计型RPM信号,以在受控的持续时间内产生每转一脉冲的信号,调节脉冲幅度,脉冲被低通滤波,并且任何DC被阻塞 取消系统输入。

    Digital hearing aid and method for feedback path modeling
    6.
    发明授权
    Digital hearing aid and method for feedback path modeling 失效
    数字助听器和反馈路径建模方法

    公开(公告)号:US6097823A

    公开(公告)日:2000-08-01

    申请号:US992777

    申请日:1997-12-17

    申请人: Sen M. Kuo

    发明人: Sen M. Kuo

    IPC分类号: H04R25/00 G10K11/178

    摘要: A digital hearing aid (10) is provided that includes a microphone (12), a control and modeling circuitry (18), and a receiver (20). The microphone (12) receives an input sound signal x(t) and generates a digital input signal x(n) in response. The control and modeling circuitry (18) filters and amplifies the digital input signal x(n) and performs feedback neutralization and feedback path modeling to generate a digital output signal y(n). The receiver (20) receives the digital output signal y(n) and generates an output sound signal y(t) in response.

    摘要翻译: 提供了包括麦克风(12),控制和建模电路(18)和接收器(20)的数字助听器(10)。 麦克风(12)接收输入声音信号x(t)并且响应地产生数字输入信号x(n)。 控制和建模电路(18)对数字输入信号x(n)进行滤波和放大,并执行反馈中和和反馈路径建模以产生数字输出信号y(n)。 接收器(20)接收数字输出信号y(n),并响应地产生输出声音信号y(t)。

    Active noise control system and method for on-line feedback path
modeling and on-line secondary path modeling
    7.
    发明授权
    Active noise control system and method for on-line feedback path modeling and on-line secondary path modeling 失效
    在线反馈路径建模和在线二次路径建模的主动噪声控制系统和方法

    公开(公告)号:US5940519A

    公开(公告)日:1999-08-17

    申请号:US992823

    申请日:1997-12-17

    申请人: Sen M. Kuo

    发明人: Sen M. Kuo

    摘要: A feedforward active noise control system (50) is provided that includes a reference sensor (16), a secondary source (18), an error sensor (20), and an active noise control system controller (10) for generating an anti-noise signal to attenuate a noise signal provided through a media. The feedforward active noise control system (50) performs on-line feedback path modeling and on-line secondary path modeling.

    摘要翻译: 提供了一种前馈有源噪声控制系统(50),其包括参考传感器(16),次级源(18),误差传感器(20)和用于产生抗噪声的主动噪声控制系统控制器(10) 信号以衰减通过介质提供的噪声信号。 前馈有源噪声控制系统(50)执行在线反馈路径建模和在线二次路径建模。

    Off-line feedback path modeling circuitry and method for off-line feedback path modeling
    8.
    发明授权
    Off-line feedback path modeling circuitry and method for off-line feedback path modeling 失效
    离线反馈路径建模电路和离线反馈路径建模方法

    公开(公告)号:US06198828B1

    公开(公告)日:2001-03-06

    申请号:US08992699

    申请日:1997-12-17

    申请人: Sen M. Kuo

    发明人: Sen M. Kuo

    IPC分类号: A61F1106

    摘要: An off-line modeling system (50) is provided for modeling a feedback path by calculating filter taps. The off-line modeling system (50) includes a reference sensor (16), a secondary source (18), and an off-line modeling circuitry (10). The reference sensor (16) receives a noise signal and a feedback signal (22) and generates a primary signal x(n) in response. The secondary source (18) receives a modeling signal v(n) and provides the modeling signal v(n) to the feedback path. The off-line modeling circuitry (10) includes a signal discrimination circuitry (54), a modeling signal generator (64), a feedback path modeling adaptive filter (60), and associated adaptive algorithm (62) and a summing junction (58). The signal discrimination circuitry (54) receives the primary signal x(n) and generates a modified modeling signal v′(n). The modeling signal generator (64) generates the modeling signal v(n). The feedback path modeling adaptive filter (60) receives the modeling signal v(n) and uses adaptive algorithm (62) to process the modeling signal v(n). In doing this, adaptive algorithm (62) calculates the filter taps. The summing junction (58) subtracts the output signal from the modified modeling signal v′(n) to generate the modeling error signal which is used by the adaptive algorithm (62).

    摘要翻译: 提供离线建模系统(50),用于通过计算滤波器抽头对反馈路径进行建模。 离线建模系统(50)包括参考传感器(16),次级源(18)和离线建模电路(10)。 参考传感器(16)接收噪声信号和反馈信号(22)并且响应地产生主信号x(n)。 二次源(18)接收建模信号v(n),并将建模信号v(n)提供给反馈路径。 离线建模电路(10)包括信号鉴别电路(54),建模信号发生器(64),反馈路径建模自适应滤波器(60)和相关联的自适应算法(62)和求和结点(58) 。 信号鉴别电路(54)接收主信号x(n)并产生修改的建模信号v'(n)。 建模信号发生器(64)产生建模信号v(n)。 反馈路径建模自适应滤波器(60)接收建模信号v(n),并使用自适应算法(62)来处理建模信号v(n)。 在这样做时,自适应算法(62)计算滤波器抽头。 求和点(58)从修改的建模信号v'(n)中减去输出信号,以产生由自适应算法(62)使用的建模误差信号。

    Off-line path modeling circuitry and method for off-line feedback path
modeling and off-line secondary path modeling
    9.
    发明授权
    Off-line path modeling circuitry and method for off-line feedback path modeling and off-line secondary path modeling 失效
    离线路径建模电路和离线反馈路径建模和离线二次路径建模的方法

    公开(公告)号:US5991418A

    公开(公告)日:1999-11-23

    申请号:US992933

    申请日:1997-12-17

    申请人: Sen M. Kuo

    发明人: Sen M. Kuo

    摘要: An off-line modeling system (50) is provided for modeling a feedback path and a secondary path by calculating feedback neutralization filter taps and secondary path compensation filter taps. The off-line modeling system (50) includes a reference sensor (16), a secondary source (18), an error sensor (20), and an off-line modeling circuitry (10). The reference sensor (16) receives a noise signal and a feedback signal (22) and generates a primary signal x(n) in response. The secondary source (18) receives a modeling signal v(n) and provides the modeling signal v(n) to the feedback path and the secondary path. The error sensor (20) receives a residual signal generates an error signal e(n). The off-line modeling circuitry (10) receives the primary signal x(n) and the error signal e(n) and generates the modeling signal v(n) while modeling the feedback path and the secondary path.

    摘要翻译: 提供离线建模系统(50),用于通过计算反馈中和滤波器抽头和次路径补偿滤波器抽头对反馈路径和次路径进行建模。 离线建模系统(50)包括参考传感器(16),次级源(18),误差传感器(20)和离线建模电路(10)。 参考传感器(16)接收噪声信号和反馈信号(22)并且响应地产生主信号x(n)。 次级源(18)接收建模信号v(n),并将建模信号v(n)提供给反馈路径和辅助路径。 误差传感器(20)接收残差信号产生误差信号e(n)。 离线建模电路(10)接收主信号x(n)和误差信号e(n),并在对反馈路径和次路径建模的同时产生建模信号v(n)。