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    Microphone array having a second order directional pattern
    4.
    发明授权
    Microphone array having a second order directional pattern 失效
    具有二阶方向图的麦克风阵列

    公开(公告)号：US07471798B2

    公开(公告)日：2008-12-30

    申请号：US10424552

    申请日：2003-04-28

    申请人： Daniel M. Warren

    发明人： Daniel M. Warren

    IPC分类号： H04R3/00 ,  H04R1/02 ,  H04R25/00 ,  G01S3/80

    CPC分类号： H04R29/006 ,  H04R1/406 ,  H04R3/005 ,  H04R25/405 ,  H04R25/407 ,  H04R2201/403

    摘要： A directional microphone system is disclosed, which comprises circuitry for low pass filtering a first order signal, and circuitry for high pass filtering a second order signal. The system further comprises circuitry for summing the low pass filtered first order signal and the high pass filtered second order signal. A method of determining whether a plurality of microphones have sufficiently matched frequency response characteristics to be used in a multi-order directional microphone array is also disclosed. For a microphone array having at least three microphones, wherein one of the microphones is disposed between the other of the microphones, a method of determining the arrangement of the microphones in the array is also disclosed.

    摘要翻译： 公开了一种定向麦克风系统，其包括用于对第一阶信号进行低通滤波的电路，以及用于对二阶信号进行高通滤波的电路。 该系统还包括用于对低通滤波的一阶信号和高通滤波的二阶信号求和的电路。 还公开了一种确定多个麦克风是否具有足够匹配的频率响应特性以用于多阶定向麦克风阵列的方法。 对于具有至少三个麦克风的麦克风阵列，其中麦克风之一设置在麦克风的另一个之间，还公开了一种确定阵列中的麦克风的布置的方法。

    Apparatus and method for generating acoustic energy in a receiver assembly
    5.
    发明授权
    Apparatus and method for generating acoustic energy in a receiver assembly 失效
    用于在接收器组件中产生声能的装置和方法

    公开(公告)号：US07336797B2

    公开(公告)日：2008-02-26

    申请号：US10842654

    申请日：2004-05-10

    申请人： Stephen C. Thompson ,  David E. Schafer ,  Daniel M. Warren

    发明人： Stephen C. Thompson ,  David E. Schafer ,  Daniel M. Warren

    IPC分类号： H04R11/02

    CPC分类号： H04R11/02 ,  H04R7/20 ,  H04R25/456

    摘要： A receiver assembly includes a housing having a fixed housing portion and a shiftable housing portion cooperating to define a hollow cavity. A flexible membrane secured between the fixed housing portion and the shiftable housing portion and adapted to allow relative motion between the fixed and shiftable housing portions. The receiver assembly further includes a magnetic motor assembly including a displaceable drive rod; and a link assembly having a first end fixedly attached to an inner surface of the shiftable housing and a second end coupled to the drive rod. The link assembly translates the shiftable housing portion relative to the fixed housing portion in response to the displacement of the drive rod.

    摘要翻译： 接收器组件包括具有固定壳体部分的壳体和配合以限定中空腔体的可移动壳体部分。 柔性膜固定在固定壳体部分和可移动壳体部分之间，并且适于允许固定壳体部分和可移动壳体部分之间的相对运动。 接收器组件还包括一个包括可移动的驱动杆的磁力马达组件; 以及连杆组件，其具有固定地连接到所述可移动壳体的内表面的第一端和联接到所述驱动杆的第二端。 响应于驱动杆的位移，连杆组件相对于固定壳体部分平移可移动的壳体部分。