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。

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。

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。

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。

公开(公告)号：US4463674A

公开(公告)日：1984-08-07

申请号：US384104

申请日：1982-06-01

申请人： Michael T. Becker ,  William D. O'Brien

发明人： Michael T. Becker ,  William D. O'Brien

IPC分类号： B41F7/26 ,  B41F7/32 ,  B41F7/40 ,  B41L25/02

CPC分类号： B41F7/26

摘要： The mounting hardware for the attachment of a water unit to a printing press includes two mounting members attached on opposite sides of the revolving plate cylinder of the printing press. The water unit is mounted on the top surfaces of the front ends of the mounting members and is positioned over the plate cylinder. The top surfaces of the back ends of the mounting members are raised in comparison to the front ends and can support a transparent shield which extends rearwardly of the back ends. A rod interconnects the two mounting members at their back ends and serves to hingeably support the water unit. Two inking unit brackets attach to opposite sides of the printing press slightly back of and below the back ends of the mounting members and extend rearwardly in an inverted L-shape to support the inking unit of the printing press.

摘要翻译： 用于将水单元附接到印刷机的安装硬件包括附接在印刷机的旋转印版滚筒的相对侧上的两个安装构件。 水单元安装在安装构件的前端的顶表面上，并且定位在印版滚筒上。 安装构件的后端的顶表面与前端相比升高，并且可以支撑从后端向后延伸的透明护罩。 杆在其后端将两个安装构件互连，并用于可铰接地支撑水单元。 两个上墨单元支架在安装构件的后端稍微靠后并附接到印刷机的相对侧，并且以倒L形向后延伸以支撑印刷机的着墨单元。