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    TWO WIRE AUTOBIAS VEHICULAR MICROPHONE SYSTEM HAVING USER INPUT FUNCTIONALITY AND METHOD OF FORMING SAME
    11.
    发明申请
    TWO WIRE AUTOBIAS VEHICULAR MICROPHONE SYSTEM HAVING USER INPUT FUNCTIONALITY AND METHOD OF FORMING SAME 有权
    具有用户输入功能的双线自动车身麦克风系统及其形成方法

    公开(公告)号：US20110123041A1

    公开(公告)日：2011-05-26

    申请号：US13003929

    申请日：2009-07-20

    申请人： Robert R. Turnbull ,  Alan R. Watson

    发明人： Robert R. Turnbull ,  Alan R. Watson

    IPC分类号： H04B1/00

    CPC分类号： H04R3/00 ,  H04R2410/00 ,  H04R2499/13

    摘要： An autobias vehicular microphone system (300) includes a microphone (301) which uses an amplifier (306) for amplifying an output of the microphone. A first feedback path (308) provides an amplifier output signal to the amplifier input for providing amplifier linearity, and a second feedback path (305) is used for providing bias to a voltage reference (303). The voltage reference (303) operates to provide an autobias to the amplifier (306) based upon amplifier load-ing. By holding the bias point to a constant voltage, a constant clip level can be maintained depending on varying load conditions of electronic devices (307, 309, 311) using the microphone (301). Additionally, one or more switches can be used to vary the bias point which can be interpreted to control functionality of the electronic devices (307, 309, 311).

    摘要翻译： 自动车辆话筒系统（300）包括麦克风（301），麦克风使用放大器（306）来放大麦克风的输出。 第一反馈路径（308）向放大器输入端提供放大器输出信号以提供放大器线性度，并且第二反馈路径（305）用于向参考电压（303）提供偏置。 基于放大器负载，电压参考（303）用于向放大器（306）提供自动分频。 通过将偏置点保持在恒定电压，可以根据使用麦克风（301）的电子设备（307,309,311）的变化的负载条件来维持恒定的剪辑电平。 另外，可以使用一个或多个开关来改变可被解释为控制电子设备（307,309,311）的功能的偏置点。

    Directional microphone with high frequency selective acoustic lens
    14.
    发明授权
    Directional microphone with high frequency selective acoustic lens 失效
    带高频选择性声透镜的定向麦克风

    公开(公告)号：US4401859A

    公开(公告)日：1983-08-30

    申请号：US268376

    申请日：1981-05-29

    申请人： Alan R. Watson

    发明人： Alan R. Watson

    IPC分类号： H04R1/34 ,  H04R1/38 ,  H04R1/32

    CPC分类号： H04R1/38 ,  H04R1/342

    摘要： A unidirectional dynamic microphone provided with a first sound path to the forward side of the diaphragm and a second sound path to the rear side of the diaphragm, a Helmholtz resonator disposed in the first sound path having a sound entrance, and a diffraction lens mounted ahead of the Helmholtz resonator and partially shadowing the sound entrance to the Helmholtz resonator for the purpose of increasing the high frequency response of the microphone.

    摘要翻译： 一个单向动态麦克风设置有一个到隔膜前侧的第一个声音通道和一个到隔膜后侧的第二个声道，一个设置在第一声道中的亥姆霍兹共振器，它具有一个声音入口，一个衍射透镜安装在前面 的亥姆霍兹共振器，并部分地遮蔽了亥姆霍兹共振器的声音入口，目的是增加麦克风的高频响应。

    Pressure gradient electret microphone
    15.
    发明授权
    Pressure gradient electret microphone 失效
    压力梯度驻极体麦克风

    公开(公告)号：US4258235A

    公开(公告)日：1981-03-24

    申请号：US957060

    申请日：1978-11-03

    申请人： Alan R. Watson

    发明人： Alan R. Watson

    IPC分类号： H04R1/38 ,  H04R19/04 ,  H04R1/20

    CPC分类号： H04R1/38 ,  H04R19/04

    摘要： A pressure gradient electret microphone provided with a plurality of channels extending between ports located in a ring of plastic material disposed about the periphery of a cylindrical back plate. Each of the channels expanding in horn fashion from the port at the diaphragm chamber to ports in the casing, and the ports in the casing being provided with an electrically conducting shield connected to the electrically conducting casing. In one embodiment of the invention, a line extends from the forward side of the diaphragm, and the line is provided with an aperture adjacent to the diaphragm coupling the diaphragm to the surrounding sound field at frequencies below the critical frequency of the line.

    摘要翻译： 设置有多个通道的压力梯度驻极体麦克风，所述多个通道在位于围绕圆柱形后板的周边布置的塑料材料环中的端口之间延伸。 每个通道以喇叭形的方式从隔膜室的端口延伸到壳体中的端口，并且壳体中的端口设置有连接到导电外壳的导电屏蔽。 在本发明的一个实施例中，线从隔膜的前侧延伸，并且线设置有邻近隔膜的孔，该隔膜在低于线的临界频率的频率处将隔膜连接到周围的声场。

    Vehicular microphone assembly using fractional power phase normalization
    16.
    发明授权
    Vehicular microphone assembly using fractional power phase normalization 有权
    车载麦克风组合使用分数电相位归一化

    公开(公告)号：US08081772B2

    公开(公告)日：2011-12-20

    申请号：US12274749

    申请日：2008-11-20

    申请人： Robert R. Turnbull ,  Alan R. Watson ,  Michael A. Bryson

    发明人： Robert R. Turnbull ,  Alan R. Watson ,  Michael A. Bryson

    IPC分类号： H04B1/00 ,  G10L21/02

    CPC分类号： H04R3/005 ,  H04R2410/01

    摘要： A triangular microphone assembly (101) for use in a vehicle accessory includes a mirror housing (106) adapted for attachment to the interior of the vehicle. A mirror is disposed in an opening of the mirror housing (106) and a plurality of virtual digital microphones (108a, 108b, 108c) are arranged in a substantially triangular configuration in the mirror housing (106). A digital signal processor (DSP) (537) is used for receiving signals from the plurality of digital microphones (108a, 108b, 108c) such that the digital microphones exhibit directional characteristics for reducing undesirable noise in at least one direction by normalizing the phase of the received signals as a function of signal frequency.

    摘要翻译： 用于车辆附件的三角形麦克风组件（101）包括适于附接到车辆内部的镜子壳体（106）。 反射镜设置在镜壳体（106）的开口中，并且多个虚拟数字麦克风（108a，108b，108c）以大致三角形的形式布置在镜壳体（106）中。 数字信号处理器（DSP）（537）用于从多个数字麦克风（108a，108b，108c）接收信号，使得数字麦克风表现出方向性特征，用于通过使至少一个方向上的 接收信号作为信号频率的函数。

    Variable reflectance mirrors and windows
    17.
    发明授权
    Variable reflectance mirrors and windows 有权
    可变反射镜和窗户

    公开(公告)号：US07916380B2

    公开(公告)日：2011-03-29

    申请号：US12691990

    申请日：2010-01-22

    申请人： William L. Tonar ,  Frederick T. Bauer ,  Alan R. Watson

    发明人： William L. Tonar ,  Frederick T. Bauer ,  Alan R. Watson

    IPC分类号： G02F1/15 ,  G02F1/153

    CPC分类号： B60R1/088

    摘要： Various structures for variable reflectance rearview mirrors and variable transmittance windows are disclosed. One embodiment pertains to the provision of a polarized reflector in a rearview mirror. Another embodiment pertains to the provision of a switchable cholesteric liquid crystal element in a window. Yet another embodiment pertains to the provision of a plurality of apertures in a reflector layer of a rearview mirror where the apertures are sized and positioned in alignment with light emitting areas of a display positioned behind the reflector layer. In another embodiment, a moveable display or mirror element is attached to a rearview mirror housing.

    摘要翻译： 公开了用于可变反射后视镜和可变透射窗的各种结构。 一个实施例涉及在后视镜中提供偏振反射器。 另一实施例涉及在窗口中提供可切换胆甾型液晶元件。 另一个实施例涉及在后视镜的反射器层中设置多个孔，其中孔的尺寸设置成与位于反射层后面的显示器的发光区域对齐。 在另一个实施例中，可移动显示器或镜子元件附接到后视镜外壳。

    VEHICLE ACCESSORY MICROPHONE
    18.
    发明申请
    VEHICLE ACCESSORY MICROPHONE 有权
    车载附件麦克风

    公开(公告)号：US20090097674A1

    公开(公告)日：2009-04-16

    申请号：US12250245

    申请日：2008-10-13

    申请人： Alan R. Watson ,  G. Bruce Poe

    发明人： Alan R. Watson ,  G. Bruce Poe

    IPC分类号： H04B1/00

    CPC分类号： B60R1/12 ,  B60R11/0247 ,  B60R2001/1284 ,  B60R2011/0005 ,  B60R2011/0033 ,  H04R1/083 ,  H04R2499/13

    摘要： A microphone assembly includes one or more transducers (2210) that are positioned in one or more housings. A preprocessing circuit (2215) includes a inverted comb filter (2245) for eliminating predetermined frequencies between harmonics of the human voice in a predetermined frequency range. A processing circuit (2220) coupled to the preprocessing circuit (2215) is used for outputting an electrical signal such that the transducers (2210) used in combination with the processing circuit (2220) very effectively cancels noise. The microphone assembly can be employed in a vehicle accessory such as a vehicular mirror.

    摘要翻译： 麦克风组件包括位于一个或多个壳体中的一个或多个换能器（2210）。 预处理电路（2215）包括用于在预定频率范围内消除人声的谐波之间的预定频率的反向梳状滤波器（2245）。 耦合到预处理电路（2215）的处理电路（2220）用于输出电信号，使得与处理电路（2220）结合使用的换能器（2210）非常有效地消除噪声。 麦克风组件可以用在诸如车辆反射镜的车辆附件中。