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    Controlled leakage omnidirectional electret condenser microphone element
    2.
    发明申请
    Controlled leakage omnidirectional electret condenser microphone element 有权
    受控漏电全向驻极体电容式麦克风元件

    公开(公告)号：US20100027817A1

    公开(公告)日：2010-02-04

    申请号：US12221644

    申请日：2008-08-04

    申请人： Medford Alan Dyer ,  Christopher Todd Welsh ,  Jeffrey Phillip McAteer ,  Alan Dean Michel ,  John Charles Baumhauer, JR.

    发明人： Medford Alan Dyer ,  Christopher Todd Welsh ,  Jeffrey Phillip McAteer ,  Alan Dean Michel ,  John Charles Baumhauer, JR.

    IPC分类号： H04R25/00

    CPC分类号： H04R19/016

    摘要： An omnidirectional electret condenser microphone element with improved low frequency background ambient acoustical noise rejection is provided. The omnidirectional electret condenser microphone element includes a plurality of passageways in acoustic series that couple at least one acoustic aperture of the microphone element to an acoustic cavity formed within the microphone element. At least one of said plurality of passageways is of a predefined size that is determined to provide the desired response roll-off within a predefined frequency range. In at least one preferred configuration, the roll-off resulting from the plurality of passageways is greater than 2.0 dB between 300 and 100 Hz. In at least one alternate preferred configuration, the roll-off resulting from the plurality of passageways is greater than 3.0 dB between 300 and 100 Hz.

    摘要翻译： 提供了具有改进的低频背景环境声学噪声抑制的全向驻极体电容式麦克风元件。 全向驻极体电容传声器元件包括多个声学系列通道，其将麦克风元件的至少一个声孔耦合到形成在麦克风元件内的声腔。 所述多个通路中的至少一个具有预定尺寸，其被确定为在预定义的频率范围内提供期望的响应滚降。 在至少一个优选配置中，由多个通路产生的滚降在300Hz与100Hz之间大于2.0dB。 在至少一个替代的优选配置中，由多个通道产生的滚降大于300Hz与100Hz之间的3.0dB。

    Dual Cell MEMS Assembly
    4.
    发明申请
    Dual Cell MEMS Assembly 有权
    双电池MEMS组装

    公开(公告)号：US20120250897A1

    公开(公告)日：2012-10-04

    申请号：US13095620

    申请日：2011-04-27

    申请人： Alan Dean Michel ,  Jeffrey Phillip McAteer ,  John Charles Baumhauer, JR.

    发明人： Alan Dean Michel ,  Jeffrey Phillip McAteer ,  John Charles Baumhauer, JR.

    IPC分类号： H04R3/00

    CPC分类号： H04R1/406 ,  H01L2224/48137 ,  H01L2924/1461 ,  H01L2924/3011 ,  H01L2924/3025 ,  H04R1/2807 ,  H04R1/2876 ,  H04R1/30 ,  H04R3/005 ,  H04R19/005 ,  H04R19/04 ,  H01L2924/00

    摘要： A transducer assembly utilizing at least two MEMS transducers is provided, the transducer assembly preferably defining either an omnidirectional or directional microphone. In addition to at least first and second MEMS transducers, the assembly includes a signal processing circuit electrically connected to the MEMS transducers, a plurality of terminal pads electrically connected to the signal processing circuit, and a transducer enclosure housing the first and second MEMS transducers. The MEMS transducers may be electrically connected to the signal processing circuit using either wire bonds or a flip-chip design. The signal processing circuit may be comprised of either a discrete circuit or an integrated circuit. The first and second MEMS transducers may be electrically connected in series or in parallel to the signal processing circuit. The first and second MEMS transducers may be acoustically coupled in series or in parallel.

    摘要翻译： 提供了使用至少两个MEMS换能器的换能器组件，换能器组件优选地限定全向或定向麦克风。 除了至少第一和第二MEMS换能器之外，组件包括电连接到MEMS换能器的信号处理电路，电连接到信号处理电路的多个端子焊盘以及容纳第一和第二MEMS换能器的换能器外壳。 MEMS换能器可以使用引线键合或倒装芯片设计电连接到信号处理电路。 信号处理电路可以由分立电路或集成电路组成。 第一和第二MEMS换能器可以与信号处理电路串联或并联电连接。 第一和第二MEMS换能器可以串联或并联地声耦合。