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    Head wearable acoustic system with noise canceling microphone geometry apparatuses and methods
    1.
    发明授权
    Head wearable acoustic system with noise canceling microphone geometry apparatuses and methods 有权

    公开(公告)号：US10306389B2

    公开(公告)日：2019-05-28

    申请号：US14886077

    申请日：2015-10-18

    申请人： KOPIN CORPORATION

    发明人： Dashen Fan ,  Xi Chen ,  Hua Bao ,  Eric Frederic Davis

    IPC分类号： H04R29/00 ,  H04R1/32 ,  G10L19/008 ,  H04R3/00 ,  H04R1/02 ,  G10L21/0208 ,  G10L25/78 ,  G10L21/0216

    摘要： Systems and methods are described to extract desired audio from an apparatus that is worn on a user's head. The apparatus includes a head wearable device. A first microphone is positioned on the head wearable device to receive a voice signal from the user A first signal from the first microphone is input as a main channel to a noise cancellation unit. A second microphone is coupled to the head wearable device. A first acoustic distance between the first microphone and the user's mouth is less than a second acoustic distance between the second microphone and the user's mouth when the head wearable device is on the user's head. A second signal from the second microphone is input as a reference channel to the noise cancellation unit. A first signal-to-noise ratio of the first signal is larger than a second signal-to-noise ratio of the second signal.

    Apparatuses and methods for enhanced speech recognition in variable environments
    2.
    发明授权
    Apparatuses and methods for enhanced speech recognition in variable environments 有权

    公开(公告)号：US11631421B2

    公开(公告)日：2023-04-18

    申请号：US14886080

    申请日：2015-10-18

    申请人： KOPIN CORPORATION

    发明人： Dashen Fan ,  Xi Chen ,  Hua Bao

    IPC分类号： G10L21/0216 ,  G10L25/84 ,  G10L25/78

    摘要： Systems, apparatuses, and methods are described to increase a signal-to-noise ratio difference between a main channel and reference channel. The increased signal-to-noise ratio difference is accomplished with an adaptive threshold for a desired voice activity detector (DVAD) and shaping filters. The DVAD includes averaging an output signal of a reference microphone channel to provide an estimated average background noise level. A threshold value is selected from a plurality of threshold values based on the estimated average background noise level. The threshold value is used to detect desired voice activity on a main microphone channel.

    WRIST WEARABLE APPARATUSES AND METHODS WITH DESIRED SIGNAL EXTRACTION
    4.
    发明申请
    WRIST WEARABLE APPARATUSES AND METHODS WITH DESIRED SIGNAL EXTRACTION 审中-公开
    具有希望的信号提取的手表易损设备和方法

    公开(公告)号：US20160140949A1

    公开(公告)日：2016-05-19

    申请号：US14886054

    申请日：2015-10-18

    申请人： KOPIN CORPORATION

    发明人： Dashen Fan ,  Xi Chen ,  Hua Bao ,  Eric Frederic Davis

    IPC分类号： G10K11/178 ,  H04R29/00

    CPC分类号： H04R29/004 ,  G10K11/178 ,  G10K2210/108 ,  G10K2210/117 ,  G10K2210/3023 ,  G10L21/0208 ,  G10L25/78 ,  G10L2021/02165 ,  G10L2021/02166 ,  H04R2203/12

    摘要： Systems and methods are described to extract desired audio from an apparatus to be worn on a user's wrist. The apparatus includes a wrist wearable device, configured to be worn on the user's wrist. The wrist wearable device includes a first microphone. The first microphone has a first response pattern. The first microphone is coupled to the wrist wearable device. The first microphone is positioned on the wrist wearable device to receive a voice signal from a user when the wrist wearable device is on the user's wrist.

    摘要翻译： 描述了系统和方法来从要佩戴在用户的手腕上的装置中提取所需的音频。 该装置包括被配置为佩戴在使用者手腕上的腕部佩戴装置。 手腕可佩戴装置包括第一麦克风。 第一麦克风具有第一响应模式。 第一麦克风耦合到腕部可佩戴装置。 第一个麦克风位于手腕穿戴式装置上，以便当手腕穿戴装置在用户手腕上时从用户接收语音信号。

    MICROPHONE CONFIGURATIONS FOR EYEWEAR DEVICES, SYSTEMS, APPARATUSES, AND METHODS
    5.
    发明申请
    MICROPHONE CONFIGURATIONS FOR EYEWEAR DEVICES, SYSTEMS, APPARATUSES, AND METHODS 审中-公开

    公开(公告)号：US20200294521A1

    公开(公告)日：2020-09-17

    申请号：US16420082

    申请日：2019-05-22

    申请人： KOPIN CORPORATION

    发明人： Xi Chen ,  Dashen Fan

    IPC分类号： G10L21/0208 ,  G02C11/00 ,  H04R3/00 ,  G02C11/06 ,  H04R29/00 ,  G10L19/008 ,  H04R1/32

    摘要： Systems and methods are described to extract desired audio from an apparatus to be worn on a user's head. An apparatus includes a head wearable device and an array of at least three microphones. The at least three microphones are arranged along a plurality of at least two non-parallel axes. Selection logic is configured to identify a selected axis from the plurality and two microphones from the array that form the selected axis. A beamformer is configured to accept as inputs, signals from the two microphones and to output a main microphone channel and a reference microphone channel.

    HEAD WEARABLE ACOUSTIC SYSTEM WITH NOISE CANCELING MICROPHONE GEOMETRY APPARATUSES AND METHODS
    6.
    发明申请
    HEAD WEARABLE ACOUSTIC SYSTEM WITH NOISE CANCELING MICROPHONE GEOMETRY APPARATUSES AND METHODS 审中-公开
    具有噪声消除麦克风几何设备和方法的头戴式耳塞系统

    公开(公告)号：US20160112817A1

    公开(公告)日：2016-04-21

    申请号：US14886077

    申请日：2015-10-18

    申请人： KOPIN CORPORATION

    发明人： Dashen Fan ,  Xi Chen ,  Hua Bao ,  Eric Frederic Davis

    IPC分类号： H04R29/00 ,  H04R1/32 ,  G10L19/008 ,  H04R3/00 ,  H04R1/02

    CPC分类号： H04R29/004 ,  G10L19/008 ,  G10L21/0208 ,  G10L25/78 ,  G10L2021/02165 ,  G10L2021/02166 ,  H04R1/028 ,  H04R1/326 ,  H04R3/005 ,  H04R2203/12 ,  H04R2410/01

    摘要： Systems and methods are described to extract desired audio from an apparatus to be worn on a user's head. The apparatus includes a head wearable device. A first microphone is coupled to the head wearable device, and is positioned on the head wearable device to receive a voice signal from the user when the head wearable device is on the user's head. A first signal from the first microphone is to be input as a main channel to a noise cancellation unit. A second microphone is coupled to the head wearable device. A first acoustic distance between the first microphone and the user's mouth is less than a second acoustic distance between the second microphone and the user's mouth when the head wearable device is on the user's head. A second signal from the second microphone is to be input as a reference channel to the noise cancellation unit. A first signal-to-noise ratio of the first signal from the first microphone is larger than a second signal-to-noise ratio of the second signal from the second microphone.

    摘要翻译： 描述了系统和方法以从要佩戴在用户头部上的装置中提取所需的音频。 该装置包括头戴式装置。 第一麦克风耦合到头部可穿戴设备，并且当头部可穿戴设备在用户的头部上时，它位于头部可穿戴设备上以接收来自用户的语音信号。 将来自第一麦克风的第一信号作为主信道输入到噪声消除单元。 第二麦克风耦合到头戴式装置。 当头戴式装置在用户的头部上时，第一麦克风和用户嘴部之间的第一声距离小于第二麦克风和用户嘴部之间的第二声距。 将来自第二麦克风的第二信号作为参考信道输入到噪声消除单元。 来自第一麦克风的第一信号的第一信噪比大于来自第二麦克风的第二信号的第二信噪比。