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    Conferencing device with microphone beamforming and echo cancellation
    1.
    发明授权
    Conferencing device with microphone beamforming and echo cancellation 有权

    公开(公告)号：US11539846B1

    公开(公告)日：2022-12-27

    申请号：US17187830

    申请日：2021-02-28

    Applicant: ClearOne, Inc.

    Inventor： Ashutosh Pandey ,  Darrin T. Thurston ,  David K. Lambert ,  Tracy A. Bathurst

    IPC: H04M9/08 ,  G10L21/0208 ,  G10L21/0232 ,  G10L21/0264 ,  H04M3/56 ,  H04R1/40 ,  H04R3/00 ,  H04R29/00 ,  G10L21/0216

    Abstract: This disclosure describes an apparatus and method of an embodiment of an invention that is a conferencing device that includes a microphone array that further comprises a plurality of microphones; a processor configured to execute the following steps: performing a beamforming operation to combine the plurality of microphones into a plurality of combined signals that is greater in number than one and less in number than the plurality of microphone signals, each of the plurality of combined signals corresponding to a different fixed beam; wherein performing the beamforming operation includes applying beamforming weights to the signals from each microphone to achieve a desired pickup pattern that includes a main lobe and sidelobes together with nulls for each fixed beam; performing an acoustic echo cancellation operation generate a plurality of combined echo cancelled signals; and selecting one or more of the combined echo cancelled signals for transmission to the far end.

    Conferencing Apparatus that combines a Beamforming Microphone Array with an Acoustic Echo Canceller
    3.
    发明申请
    Conferencing Apparatus that combines a Beamforming Microphone Array with an Acoustic Echo Canceller 有权
    会议设备将波束形成麦克风阵列与声学回声消除器相结合

    公开(公告)号：US20160300584A1

    公开(公告)日：2016-10-13

    申请号：US15190424

    申请日：2016-06-23

    Applicant: ClearOne, Inc.

    Inventor： Ashutosh Pandey ,  Darrin T. Thurston ,  David K. Lambert ,  Tracy A. Bathurst

    IPC: G10L21/0264 ,  H04R3/00

    CPC classification number: H04R1/406 ,  G10K11/178 ,  G10L21/0208 ,  G10L21/0232 ,  G10L21/0264 ,  G10L2021/02082 ,  G10L2021/02166 ,  H04M3/568 ,  H04M9/082 ,  H04R3/005 ,  H04R29/007 ,  H04R2201/401 ,  H04R2201/403 ,  H04R2203/12 ,  H04R2430/20 ,  H04R2430/23 ,  H04R2499/11

    Abstract: The present disclosure discloses a conferencing apparatus that combines a beamforming microphone array (BMA) with an acoustic echo canceller where the BMA further comprises a plurality of microphones that are oriented to develop a corresponding plurality of microphone signals. The apparatus further includes a processor, memory, and storage where the processor is configured to execute program instructions. The processor performs a beamforming operation to create a plurality of combined signals. In addition, the processor performs an acoustic echo cancellation operation to generate a plurality of combined echo cancelled signals. Further, the processor selects one of the combined echo cancelled signals for transmission to the far end where the signal selection module uses the far end signal as information to inhibit the signal selection module from changing the selection of the combined echo cancelled signals while only the far end signal is active.

    Abstract translation: 本公开公开了一种会议装置，其将波束成形麦克风阵列（BMA）与声学回声消除器组合在一起，其中BMA还包括多个麦克风，其被定向成开发相应的多个麦克风信号。 该装置还包括处理器，存储器和存储器，其中处理器被配置为执行程序指令。 处理器执行波束形成操作以产生多个组合信号。 此外，处理器执行声回波消除操作以产生多个组合的回声消除信号。 此外，处理器选择组合回波消除信号中的一个以发送到远端，其中信号选择模块使用远端信号作为信息，以阻止信号选择模块改变组合回波消除信号的选择，而只有远端 结束信号有效。

    CONFERENCING APPARATUS WITH AN AUTOMATICALLY ADAPTING BEAMFORMING MICROPHONE ARRAY
    6.
    发明申请
    CONFERENCING APPARATUS WITH AN AUTOMATICALLY ADAPTING BEAMFORMING MICROPHONE ARRAY 有权
    配有自动适配麦克风阵列的配套设备

    公开(公告)号：US20160142548A1

    公开(公告)日：2016-05-19

    申请号：US14979822

    申请日：2015-12-28

    Applicant: ClearOne Inc.

    Inventor： Ashutosh Pandey ,  Darrin T. Thurston ,  David K. Lambert ,  Tracy A. Bathurst

    IPC: H04M3/56 ,  H04M9/08 ,  G10L21/0208 ,  H04R3/00 ,  H04R1/40

    CPC classification number: H04R1/406 ,  G10K11/178 ,  G10L21/0208 ,  G10L21/0232 ,  G10L21/0264 ,  G10L2021/02082 ,  G10L2021/02166 ,  H04M3/568 ,  H04M9/082 ,  H04R3/005 ,  H04R29/007 ,  H04R2201/401 ,  H04R2201/403 ,  H04R2203/12 ,  H04R2430/20 ,  H04R2430/23 ,  H04R2499/11

    Abstract: This disclosure describes a conferencing apparatus with an automatically adapting beamforming microphone array for teleconferencing applications. The conferencing apparatus includes a processor coupled to memory, storage, and a housing. The apparatus further includes a communication element, a plurality of microphones arranged in the housing and configured as a beamforming microphone array, and an orientation sensor. Additionally, the apparatus includes executing a series of steps including: (a) adapting a signal-processing characteristic of the beamforming microphone array responsive to the orientation signal, (b) beamforming to combine the plurality of microphone signals to a plurality of combined signals, (c) performing an acoustic echo cancelation operation on the plurality of combined signals to generate a plurality of combined echo-canceled signals, and (d) selecting one or more of the plurality of combined echo-canceled signals for transmission.

    Abstract translation: 本公开描述了具有用于电话会议应用的自动适应波束成形麦克风阵列的会议装置。 会议装置包括耦合到存储器，存储器和外壳的处理器。 该装置还包括通信元件，布置在壳体中并被配置为波束成形麦克风阵列的多个麦克风和定向传感器。 此外，该装置包括执行一系列步骤，包括：（a）响应于取向信号调整波束成形麦克风阵列的信号处理特性，（b）波束形成以将多个麦克风信号组合成多个组合信号， （c）对所述多个组合信号执行声学回声消除操作以产生多个组合的回声消除信号，以及（d）选择所述多个组合的回声消除信号中的一个或多个用于传输。

    Conferencing Apparatus that combines a Beamforming Microphone Array with an Acoustic Echo Canceller
    9.
    发明申请
    Conferencing Apparatus that combines a Beamforming Microphone Array with an Acoustic Echo Canceller 审中-公开
    会议设备将波束形成麦克风阵列与声学回声消除器相结合

    公开(公告)号：US20160302006A1

    公开(公告)日：2016-10-13

    申请号：US15190414

    申请日：2016-06-23

    Applicant: ClearOne, Inc.

    Inventor： Ashutosh Pandey ,  Darrin T. Thurston ,  David K. Lambert ,  Tracy A. Bathurst

    IPC: H04R3/00 ,  G10L21/0208 ,  H04R1/40 ,  H04M9/08 ,  G10K11/178

    CPC classification number: H04R1/406 ,  G10K11/178 ,  G10L21/0208 ,  G10L21/0232 ,  G10L21/0264 ,  G10L2021/02082 ,  G10L2021/02166 ,  H04M3/568 ,  H04M9/082 ,  H04R3/005 ,  H04R29/007 ,  H04R2201/401 ,  H04R2201/403 ,  H04R2203/12 ,  H04R2430/20 ,  H04R2430/23 ,  H04R2499/11

    Abstract: The present disclosure discloses a conferencing apparatus that combines a beamforming microphone array with an acoustic echo canceller. The apparatus includes a beamforming microphone array that further comprises a plurality of microphones wherein each microphone is configured to sense acoustic waves and the plurality of microphones are oriented to develop a corresponding plurality of microphone signals. The apparatus further includes a processor, memory, and storage where the processor is configured to execute program instructions. The processor performs a beamforming operation to create a plurality of combined signals. In addition, the processor performs an acoustic echo cancellation operation to generate a plurality of combined echo cancelled signals. Further, the processor performs a direction of arrival determination to select one of the plurality of combined echo cancelled signals. And, the processor selects one of the combined echo cancelled signals for transmission to the far end.

    Abstract translation: 本公开公开了一种将波束成形麦克风阵列与声学回声消除器组合的会议装置。 该装置包括进一步包括多个麦克风的波束成形麦克风阵列，其中每个麦克风被配置成感测声波，并且多个麦克风被定向以形成相应的多个麦克风信号。 该装置还包括处理器，存储器和存储器，其中处理器被配置为执行程序指令。 处理器执行波束形成操作以产生多个组合信号。 此外，处理器执行声回波消除操作以产生多个组合的回声消除信号。 此外，处理器执行到达方向确定以选择多个组合回波消除信号中的一个。 并且，处理器选择组合回波消除信号中的一个以传输到远端。

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