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    VAD DETECTION MICROPHONE AND METHOD OF OPERATING THE SAME
    3.
    发明申请
    VAD DETECTION MICROPHONE AND METHOD OF OPERATING THE SAME 有权
    VAD检测麦克风及其操作方法

    公开(公告)号：US20150043755A1

    公开(公告)日：2015-02-12

    申请号：US14522158

    申请日：2014-10-23

    Applicant: Knowles Electronics, LLC

    Inventor： Claus Erdmann Fürst ,  Henrik Thomsen ,  Michael Deruginsky ,  Dibyendu Nandy ,  Oddy Nopporn Khamharn

    IPC: H04R17/02 ,  G10L15/00

    CPC classification number: H04R17/02 ,  G06F1/324 ,  G06F1/325 ,  G10L15/00 ,  G10L25/78 ,  H04R1/08 ,  H04R3/00 ,  H04R19/005 ,  H04R19/04 ,  H04R2201/003 ,  Y02D10/126

    Abstract: A microphone includes a microelectromechanical system (MEMS) circuit and an integrated circuit. The MEMS circuit is configured to convert a voice signal into an electrical signal, and the integrated circuit is coupled to the MEMS circuit and is configured to receive the electrical signal. The integrated circuit and the MEMS circuit receive a clock signal from an external host. The clock signal is effective to cause the MEMS circuit and integrated circuit to operate in full system operation mode during a first time period and in a voice activity mode of operation during a second time period. The voice activity mode has a first power consumption and the full system operation mode has a second power consumption. The first power consumption is less than the second power consumption. The integrated circuit is configured to generate an interrupt upon the detection of voice activity, and send the interrupt to the host.

    Abstract translation: 麦克风包括微机电系统（MEMS）电路和集成电路。 MEMS电路被配置为将语音信号转换成电信号，并且集成电路耦合到MEMS电路并且被配置为接收电信号。 集成电路和MEMS电路从外部主机接收时钟信号。 时钟信号有效地使得MEMS电路和集成电路在第一时间段期间和在第二时间段内处于语音活动操作模式下以全系统操作模式操作。 语音活动模式具有第一功率消耗，并且全系统操作模式具有第二功耗。 第一功耗小于第二功耗。 集成电路配置为在检测到语音活动时产生中断，并将中断发送到主机。

    MICROPHONE APPARATUS AND METHOD WITH CATCH-UP BUFFER
    7.
    发明申请
    MICROPHONE APPARATUS AND METHOD WITH CATCH-UP BUFFER 有权
    麦克风设备和具有上拉式缓冲器的方法

    公开(公告)号：US20170061963A1

    公开(公告)日：2017-03-02

    申请号：US15259473

    申请日：2016-09-08

    Applicant: Knowles Electronics, LLC

    Inventor： Dibyendu Nandy ,  Yang Li ,  Ramanujapuram Raghuvir ,  Robert A. Popper ,  Andrzej Pawlowski ,  Kim Spetzler Berthelsen ,  Henrik Thomsen ,  Niel D. Warren ,  David P. Rossum

    IPC: G10L15/22 ,  H04R19/04 ,  G10L25/78

    CPC classification number: G10L15/22 ,  G06F1/3206 ,  G10L15/30 ,  G10L25/48 ,  G10L25/78 ,  H04R3/00 ,  H04R3/005 ,  H04R19/04 ,  H04R2201/003

    Abstract: At a microphone, voice activity is detected in a data stream while simultaneously buffering audio data from the data stream to create buffered data. A signal is sent to a host indicating the positive detection of voice activity in the data stream. When an external clock signal is received from the host, the internal operation of the microphone is synchronized with the external clock signal. Buffered data stream is selectively sent through a first path, the first path including a buffer having a buffer delay time representing the time the first data stream takes to move through the buffer. The data stream is continuously sent through a second path as a real-time data stream, the second path not including the buffer, the real-time data stream beginning with the extended buffer data at a given instant in time. The buffered data stream and the real-time data stream are multiplexed onto a single data line and transmitting the multiplexed data stream to the host.

    Abstract translation: 在麦克风上，在数据流中检测到语音活动，同时从数据流缓冲音频数据以创建缓冲数据。 信号被发送到主机，指示数据流中的语音活动的肯定检测。 当从主机接收到外部时钟信号时，麦克风的内部操作与外部时钟信号同步。 缓冲数据流被选择性地通过第一路径发送，第一路径包括缓冲器，缓冲器具有表示第一数据流在缓冲器中移动的时间的缓冲延迟时间。 数据流通过第二路径作为实时数据流连续发送，第二路径不包括缓冲器，在给定时刻从扩展缓冲器数据开始的实时数据流。 将缓冲的数据流和实时数据流复用到单个数据线上，并将多路复用的数据流发送到主机。

    ACOUSTIC APPARATUS WITH SHARED CLOCK
    8.
    发明申请
    ACOUSTIC APPARATUS WITH SHARED CLOCK 审中-公开
    具有共享时钟的声学设备

    公开(公告)号：US20170046117A1

    公开(公告)日：2017-02-16

    申请号：US15232735

    申请日：2016-08-09

    Applicant: Knowles Electronics, LLC

    Inventor： Ramanujapuram Raghuvir ,  Robert Popper ,  Dibyendu Nandy ,  Oddy Khamharn

    IPC: G06F3/16 ,  H04R3/00

    CPC classification number: H04R3/005

    Abstract: An acoustic apparatus includes a first digital microphone having a first clock pin, a second digital microphone having a second clock pin, an application processor having a third clock pin, a first interface that couples the first digital microphone and the application processor, and a second interface that couples the first digital microphone, the second digital microphone, and the application processor. The acoustic apparatus further includes a clock that connects to the first clock pin, the second clock pin, and the third clock pin, wherein first data is transmitted on a first clock edge, and wherein second, different data is transmitted on a second other clock edge.

    Abstract translation: 声学装置包括具有第一时钟引脚的第一数字麦克风，具有第二时钟引脚的第二数字麦克风，具有第三时钟引脚的应用处理器，耦合第一数字麦克风和应用处理器的第一接口，以及第二数字麦克风 接口，其耦合第一数字麦克风，第二数字麦克风和应用处理器。 所述声学装置还包括连接到所述第一时钟引脚，所述第二时钟引脚和所述第三时钟引脚的时钟，其中在第一时钟沿发送第一数据，并且其中，第二另外的时钟发送不同的数据 边缘。

    Signal processing platform in an acoustic capture device
    9.
    发明授权
    Signal processing platform in an acoustic capture device 有权
    信号处理平台在声学捕获装置中

    公开(公告)号：US09554214B2

    公开(公告)日：2017-01-24

    申请号：US14795305

    申请日：2015-07-09

    Applicant: Knowles Electronics, LLC

    Inventor： John Nielsen ,  Anders Svava Mortensen ,  Rene Rye Larsen ,  Robert A. Popper ,  Dibyendu Nandy ,  Jacob Midtgaard

    IPC: H04R1/02 ,  H04R3/00 ,  H04R25/00 ,  H04R23/00 ,  H04R1/04 ,  H04R19/00 ,  H04R1/00

    CPC classification number: H04R23/00 ,  B81B2201/0257 ,  H04R1/005 ,  H04R1/04 ,  H04R3/007 ,  H04R19/005 ,  H04R2201/003

    Abstract: A microphone includes a base, a micro electro mechanical system (MEMS) device disposed on the base, and a front end processing apparatus disposed on the base and coupled to the MEMS device, the front end processing apparatus being configured to convert analog signals received from the MEMS device into digital signals. The microphone also includes a DSP apparatus, the DSP apparatus being a digital programmed device with a computer memory, the DSP apparatus configured to process the digital signals received from the front end processing apparatus. The MEMS device, the front end processing apparatus, and DSP apparatus are enclosed within a single microphone enclosure or assembly. During operation the DSP apparatus generates DSP noise. The DSP apparatus includes a noise reduction structure that substantially prevents the DSP noise from reaching or interfering with the operation of the MEMS device or the front end processing apparatus.

    Abstract translation: 麦克风包括基座，设置在基座上的微电子机械系统（MEMS）装置，以及设置在基座上并耦合到MEMS装置的前端处理装置，前端处理装置被配置为将从 将MEMS器件转换为数字信号。 麦克风还包括DSP装置，DSP装置是具有计算机存储器的数字编程装置，DSP装置被配置为处理从前端处理装置接收的数字信号。 MEMS器件，前端处理设备和DSP设备被封装在单个麦克风外壳或组件内。 在操作过程中DSP设备产生DSP噪声。 DSP装置包括基本上防止DSP噪声到达或干扰MEMS装置或前端处理装置的操作的噪声降低结构。

    Microphone apparatus and method with catch-up buffer
    10.
    发明授权
    Microphone apparatus and method with catch-up buffer 有权
    带追赶缓冲器的麦克风设备和方法

    公开(公告)号：US09478234B1

    公开(公告)日：2016-10-25

    申请号：US14797310

    申请日：2015-07-13

    Applicant: Knowles Electronics, LLC

    Inventor： Dibyendu Nandy ,  Yang Li ,  Ramanujapuram Raghuvir ,  Robert A. Popper ,  Andrzej Pawlowski ,  Kim Spetzler Berthelsen ,  Henrik Thomsen ,  Niel D. Warren ,  David P. Rossum

    IPC: G06F17/00 ,  G10L25/78 ,  G10L15/30 ,  H04H60/04 ,  H04R3/00

    CPC classification number: G10L15/22 ,  G06F1/3206 ,  G10L15/30 ,  G10L25/48 ,  G10L25/78 ,  H04R3/00 ,  H04R3/005 ,  H04R19/04 ,  H04R2201/003

    Abstract: At a microphone, voice activity is detected in a data stream while simultaneously buffering audio data from the data stream to create buffered data. A signal is sent to a host indicating the positive detection of voice activity in the data stream. When an external clock signal is received from the host, the internal operation of the microphone is synchronized with the external clock signal. Buffered data stream is selectively sent through a first path, the first path including a buffer having a buffer delay time representing the time the first data stream takes to move through the buffer. The data stream is continuously sent through a second path as a real-time data stream, the second path not including the buffer, the real-time data stream beginning with the extended buffer data at a given instant in time. The buffered data stream and the real-time data stream are multiplexed onto a single data line and transmitting the multiplexed data stream to the host.

    Abstract translation: 在麦克风上，在数据流中检测到语音活动，同时从数据流缓冲音频数据以创建缓冲数据。 信号被发送到主机，指示数据流中的语音活动的肯定检测。 当从主机接收到外部时钟信号时，麦克风的内部操作与外部时钟信号同步。 缓冲数据流被选择性地通过第一路径发送，第一路径包括缓冲器，缓冲器具有表示第一数据流在缓冲器中移动的时间的缓冲延迟时间。 数据流通过第二路径作为实时数据流连续发送，第二路径不包括缓冲器，在给定时刻从扩展缓冲器数据开始的实时数据流。 将缓冲的数据流和实时数据流复用到单个数据线上，并将多路复用的数据流发送到主机。

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