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    VAD DETECTION MICROPHONE AND METHOD OF OPERATING THE SAME
    1.
    发明公开
    VAD DETECTION MICROPHONE AND METHOD OF OPERATING THE SAME 审中-公开
    VAD-ERKENNUNGSMIKROFON UND VERFAHREN ZUM BETRIEB DAVON

    公开(公告)号：EP3000241A1

    公开(公告)日：2016-03-30

    申请号：EP14801065.5

    申请日：2014-05-20

    申请人： Knowles Electronics, LLC

    发明人： FURST, Claus E. ,  THOMSEN, Henrik ,  DERUGINSKY, Michael ,  NANDY, Dibyendu ,  KHAMHARN, Oddy N.

    IPC分类号： H04R3/06 ,  H04R19/04

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

    摘要： 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.

    摘要翻译： 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完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，并将中断发送给主机。