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1. 发明授权

US07613309B2 Interference suppression techniques 失效
标题翻译：干扰抑制技术
公开(公告)号：US07613309B2
公开(公告)日：2009-11-03
申请号：US10290137
申请日：2002-11-07
申请人： Douglas L. Jones , Michael E. Lockwood , Robert C. Bilger , Carolyn T. Bilger, legal representative , Albert S. Feng , Charissa R. Lansing , William D. O'Brien , Bruce C. Wheeler , Mark Elledge , Chen Liu
发明人： Douglas L. Jones , Michael E. Lockwood , Robert C. Bilger , Albert S. Feng , Charissa R. Lansing , William D. O'Brien , Bruce C. Wheeler , Mark Elledge , Chen Liu
IPC分类号： H04B15/00
CPC分类号： H04R25/407 , G10L2021/02165 , H04R3/005 , H04R2201/403 , H04R2225/43 , H04R2430/20
摘要： System (10) is disclosed including an acoustic sensor array (20) coupled to processor (42). System (10) processes inputs from array (20) to extract a desired acoustic signal through the suppression of interfering signals. The extraction/suppression is performed by modifying the array (20) inputs in the frequency domain with weights selected to minimize variance of the resulting output signal while maintaining unity gain of signals received in the direction of the desired acoustic signal. System (10) may be utilized in hearing aids, voice input devices, surveillance devices, and other applications.
摘要翻译：公开了包括耦合到处理器（42）的声学传感器阵列（20）的系统（10）。系统（10）处理来自阵列（20）的输入，以通过抑制干扰信号来提取期望的声信号。通过修改频域中的阵列（20）输入来执行提取/抑制，该权重被选择以最小化所得到的输出信号的方差，同时保持在所需声信号的方向上接收的信号的单位增益。系统（10）可以用于助听器，语音输入设备，监视设备和其他应用中。

2. 发明授权

US06978159B2 Binaural signal processing using multiple acoustic sensors and digital filtering 有权
标题翻译：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。

3. 发明授权

US06987856B1 Binaural signal processing techniques 失效
标题翻译：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。

4. 发明授权

US07206423B1 Intrabody communication for a hearing aid 有权
标题翻译：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。

5. 发明授权

US07945064B2 Intrabody communication with ultrasound 有权
标题翻译：用超声波进行体内通讯
公开(公告)号：US07945064B2
公开(公告)日：2011-05-17
申请号：US10409970
申请日：2003-04-09
申请人： William D. O'Brien, Jr. , Albert S. Feng , Bruce C. Wheeler , Charissa R. Lansing , Herbert Bachler , Robert C. Bilger , Carolyn J. Bilger, legal representative
发明人： William D. O'Brien, Jr. , Albert S. Feng , Bruce C. Wheeler , Charissa R. Lansing , Herbert Bachler , Robert C. Bilger
IPC分类号： H04R25/00
CPC分类号： H04M1/6066 , H04B11/00 , H04B13/005 , H04M1/05 , H04M2250/02 , H04R25/558 , H04R25/606
摘要： A hearing system has a first device and a second device. The first device acoustically couples to skin of a user of the hearing system and includes a sensor to detect acoustic signals. The second device includes a hearing stimulator arrangement to stimulate hearing of the user in response to the acoustic signals detected with the first device. The first device and second device are each operable to bidirectionally communicate through an ultrasonic communication link comprising at least a portion of the body of the user.
摘要翻译：听力系统具有第一装置和第二装置。第一设备声学地耦合到听觉系统的用户的皮肤，并且包括用于检测声信号的传感器。第二装置包括听力刺激器装置，以响应于用第一装置检测到的声信号来刺激用户的听力。第一设备和第二设备各自可操作以通过包括用户身体的至少一部分的超声波通信链路进行双向通信。

6. 发明授权

US06222927B1 Binaural signal processing system and method 失效
标题翻译：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。

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