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    Binaural signal processing using multiple acoustic sensors and digital filtering
    2.
    发明授权
    Binaural signal processing using multiple acoustic sensors and digital filtering 有权
    双声道信号处理采用多声道传感器和数字滤波

    公开(公告)号：US06978159B2

    公开(公告)日：2005-12-20

    申请号：US09805233

    申请日：2001-03-13

    申请人： Albert S. Feng ,  Chen Liu ,  Douglas L. Jones ,  Robert C. Bilger ,  Charissa R. Lansing ,  William D. O'Brien ,  Bruce C. Wheeler

    发明人： Albert S. Feng ,  Chen Liu ,  Douglas L. Jones ,  Robert C. Bilger ,  Charissa R. Lansing ,  William D. O'Brien ,  Bruce C. Wheeler

    IPC分类号： H04R25/00 ,  H04S1/00 ,  H04B1/00

    CPC分类号： H04S1/007 ,  H04R25/407 ,  H04R25/552

    摘要： A desired acoustic signal is extracted from a noisy environment by generating a signal representative of the desired signal with processor (30). Processor (30) receives aural signals from two sensors (22, 24) each at a different location. The two inputs to processor (30) are converted from analog to digital format and then submitted to a discrete Fourier transform process to generate discrete spectral signal representations. The spectral signals are delayed to provide a number of intermediate signals, each corresponding to a different spatial location relative to the two sensors. Locations of the noise source and the desired source, and the spectral content of the desired signal are determined from the intermediate signal corresponding to the noise source locations. Inverse transformation of the selected intermediate signal followed by digital to analog conversion provides an output signal representative of the desired signal with output device (90). Techniques to localize multiple acoustic sources are also disclosed. Further, a technique to enhance noise reduction from multiple sources based on two-sensor reception is described.

    摘要翻译： 通过用处理器（30）产生表示期望信号的信号，从有噪声的环境中提取期望的声信号。 处理器（30）从不同位置的两个传感器（22,24）接收听觉信号。 处理器（30）的两个输入从模拟转换成数字格式，然后提交到离散傅立叶变换处理以产生离散的频谱信号表示。 频谱信号被延迟以提供多个中间信号，每个中间信号对应于相对于两个传感器的不同的空间位置。 从对应于噪声源位置的中间信号确定噪声源和期望源的位置以及期望信号的频谱含量。 所选择的中间信号的逆变换随后进行数模转换，由输出装置（90）提供代表期望信号的输出信号。 还公开了定位多个声源的技术。 此外，描述了一种基于双传感器接收来增强来自多个源的噪声降低的技术。

    Intrabody communication for a hearing aid
    3.
    发明授权
    Intrabody communication for a hearing aid 有权
    助听器的内部通信

    公开(公告)号：US07206423B1

    公开(公告)日：2007-04-17

    申请号：US09568435

    申请日：2000-05-10

    申请人： Albert S. Feng ,  Douglas Jones ,  Bruce C. Wheeler ,  Robert C. Bilger ,  Charissa R. Lansing ,  William D. O'Brien

    发明人： Albert S. Feng ,  Douglas Jones ,  Bruce C. Wheeler ,  Robert C. Bilger ,  Charissa R. Lansing ,  William D. O'Brien

    IPC分类号： H04R25/00

    CPC分类号： H04B13/005 ,  H04R25/502

    摘要： Disclosed is a hearing aid that includes a first component operable to receive an input and a second component operable to provide an output to at least one ear of a user of the hearing aid. The first component and the second component are electrically coupled together by a closed electrical circuit including at least one electrical conduction pathway formed by skin of the user between the first component and the second component. An electrical signal is transmitted from the first component to the second component with the closed electrical circuit. Communication between the first and second components can be one-way or two-way.

    摘要翻译： 公开了一种助听器，其包括可操作以接收输入的第一部件和可操作以向助听器的使用者的至少一个耳朵提供输出的第二部件。 第一部件和第二部件通过包括在第一部件和第二部件之间由使用者的皮肤形成的至少一个导电通路的闭合电路电耦合在一起。 电信号由闭合电路从第一部件传输到第二部件。 第一和第二组件之间的通信可以是单向或双向。

    Binaural signal processing techniques
    5.
    发明授权
    Binaural signal processing techniques 失效
    双耳信号处理技术

    公开(公告)号：US06987856B1

    公开(公告)日：2006-01-17

    申请号：US09193058

    申请日：1998-11-16

    申请人： Albert S. Feng ,  Chen Liu ,  Robert C. Bilger ,  Douglas L. Jones ,  Charissa R. Lansing ,  William D. O'Brien ,  Bruce C. Wheeler

    发明人： Albert S. Feng ,  Chen Liu ,  Robert C. Bilger ,  Douglas L. Jones ,  Charissa R. Lansing ,  William D. O'Brien ,  Bruce C. Wheeler

    IPC分类号： H04R3/00 ,  H04R25/00 ,  H04B15/00 ,  G01S3/80

    CPC分类号： H04R25/552 ,  G01S3/8083 ,  G01S7/52001 ,  H04R25/407 ,  H04R25/505

    摘要： A desired acoustic signal is extracted from a noisy environment by generating a signal representative of the desired signal with a processor. The processor receives aural signals from two sensors each at a different location. The two inputs to the processor are converted from analog to digital format and then submitted to a discrete Fourier transform process to generate discrete spectral signal representations. The spectral signals are delayed by a number of time intervals in a dual delay line to provide a number of intermediate signals, each corresponding to a different spatial location relative to the two sensors. Locations of the noise source and the desired source are determined and the spectral content of the desired signal is determined from the intermediate signal corresponding to the noise source locations. Inverse transformation of the selected intermediate signal followed by digital to analog conversion provides an output signal representative of the desired signal. Techniques to localize multiple acoustic sources are also disclosed. Further, a technique to enhance noise reduction from multiple sources based on two-sensor reception is described.

    摘要翻译： 通过用处理器产生表示期望信号的信号，从噪声环境中提取期望的声信号。 处理器从不同位置接收来自两个传感器的听觉信号。 处理器的两个输入从模拟转换为数字格式，然后提交到离散傅立叶变换处理以产生离散的频谱信号表示。 频谱信号在双延迟线中延迟多个时间间隔以提供多个中间信号，每个中间信号对应于相对于两个传感器的不同的空间位置。 确定噪声源和所需源的位置，并根据对应于噪声源位置的中间信号确定期望信号的频谱含量。 所选择的中间信号的逆变换随后进行数模转换，提供代表期望信号的输出信号。 还公开了定位多个声源的技术。 此外，描述了一种基于双传感器接收来增强来自多个源的噪声降低的技术。

    Binaural signal processing system and method
    6.
    发明授权
    Binaural signal processing system and method 失效
    双耳信号处理系统及方法

    公开(公告)号：US06222927B1

    公开(公告)日：2001-04-24

    申请号：US08666757

    申请日：1996-06-19

    申请人： Albert S. Feng ,  Charissa R. Lansing ,  Chen Liu ,  William O'Brien ,  Bruce C. Wheeler

    发明人： Albert S. Feng ,  Charissa R. Lansing ,  Chen Liu ,  William O'Brien ,  Bruce C. Wheeler

    IPC分类号： H04B1500

    CPC分类号： H04R25/552 ,  H04R25/407 ,  H04S1/007

    摘要： A desired acoustic signal is extracted from a noisy environment by generating a signal representative of the desired signal with a processor for a hearing aid device. The processor receives binaural signals from two microphones at different locations. The binaural inputs to the processor are converted from analog to digital format and then submitted to a discrete Fourier transform process to generate discrete spectral signal representations. The spectral signals are delayed by a number of time intervals in a dual delay line to provide a number of intermediate signals, each corresponding to a different position relative to a desired signal source. Location of the noise source is determined and the spectral content of the desired signal is determined from the intermediate signal corresponding to the noise source location. Inverse transformation of the selected intermediate signal followed by digital to analog conversion provides an output signal representative of the desired signal.

    摘要翻译： 通过用助听器装置的处理器生成表示期望信号的信号，从有噪声的环境中提取期望的声信号。 处理器从不同位置的两个麦克风接收双耳信号。 处理器的双耳输入从模拟转换为数字格式，然后提交到离散傅立叶变换处理以产生离散的频谱信号表示。 频谱信号在双延迟线中延迟多个时间间隔以提供多个中间信号，每个中间信号对应于相对于期望信号源的不同位置。 确定噪声源的位置，并根据对应于噪声源位置的中间信号确定期望信号的频谱含量。 所选择的中间信号的逆变换随后进行数模转换，提供代表期望信号的输出信号。