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    • 1. 发明授权
    • Cantilevered deflection sensing system
    • 悬臂偏转传感系统
    • US06236301B1
    • 2001-05-22
    • US08707406
    • 1996-09-04
    • Gordon B. LangfordCesar A. MontanoGreg A. Putnam
    • Gordon B. LangfordCesar A. MontanoGreg A. Putnam
    • G01B716
    • G01B7/18B60Q5/003B60R21/21658H01C10/10
    • A deflection sensing system for detecting deflection includes one or more deflection sensors between opposing sets of extensions. When one set of extensions is moved toward an opposing set of extensions, the deflection sensors are deflected. A preferred deflection sensor is a flexible potentiometer, which has a resistance that changes as the flexible potentiometer is deflected A flexible potentiometer includes a variable resistance material on a substrate. In a preferred system, the flexible potentiometer includes a cantilevered section, which is deflected about an extension with respect to the remainder of the flexible potentiometer, or with respect to a portion of the substrate not including the variable resistance material. A flexible potentiometer experiences less stress when in cantilevered form than when stretched between two extensions. In either case, the extensions may be joined to first and second corrugated plates. A particular application for the system is in a horn activator used in connection with an automobile air bag system. A corrugated plate may be adhered to the inside of a hub cover. Alternatively, the extensions may be adhered directly to the hub cover. Analyzing circuitry senses the resistance of a resistive grid including flexible potentiometers. The analyzing circuitry interprets a change in resistance to mean there has been a deflection. The analyzing circuitry may consider merely that there has been a change in resistance, or it may consider the amount of change in resistance. The analyzing circuitry may essentially simultaneously analyze the resistance of more than one resistive grid or deflection sensor.
    • 用于检测偏转的偏转感测系统包括在相对的延伸组之间的一个或多个偏转传感器。 当一组延伸件朝向相对的一组延伸部移动时,偏转传感器被偏转。 优选的偏转传感器是柔性电位器,其具有随柔性电位器偏转而改变的电阻。柔性电位器包括在基板上的可变电阻材料。 在优选的系统中,柔性电位器包括悬臂部分,其相对于柔性电位器的其余部分绕延伸部偏转,或相对于不包括可变电阻材料的基板的一部分而偏转。 柔性电位器在悬臂形式时的拉伸应力比两个延伸部分之间的应力要小。 在任一情况下,延伸部可以连接到第一和第二波纹板。 用于系统的特定应用是与汽车安全气囊系统相关联使用的喇叭起动器。 波纹板可以粘附到轮毂盖的内部。 或者,延伸部可以直接粘附到轮毂盖上。 分析电路检测包括灵活电位计的电阻网格的电阻。 分析电路解释了电阻的变化,意味着有偏差。 分析电路可以仅考虑电阻的变化,或者可以考虑电阻的变化量。 分析电路可以基本上同时分析多于一个电阻网格或偏转传感器的电阻。
    • 2. 发明授权
    • Two-wire interface to automobile horn relay circuit
    • 汽车喇叭继电器二线接口
    • US5789827A
    • 1998-08-04
    • US728807
    • 1996-10-09
    • David R. RowleyCesar A. MontanoGordon B. Langford
    • David R. RowleyCesar A. MontanoGordon B. Langford
    • B60Q5/00H01C10/10B60R21/20
    • H01C10/106B60Q5/00Y10T307/766
    • A system selectively completes a horn circuit through which electrical power is provided to a horn in an automobile. A relay is connected to a power supply and completes the horn circuit when a current signal passing through the relay has at least a threshold magnitude. A relay driver is selectively activated by processing circuitry. When it is activated, the relay driver is in a conductive state, and when it is not activated, the relay driver is in a high impendance state. When the relay driver is in the conductive state, it places the relay in series with a low potential conductor thereby establishing the current signal at at least the threshold magnitude. The processing circuitry is electrically connected to a manually actuated sensor, which may be a flexible potentiometer. The processing circuitry activates the relay driver when the manually actuated sensor is actuated. The processing circuitry receives electrical power from the relay when the relay driver is in the high impendance state, but receives essentially no electrical power from the relay when the relay driver is in the conductive state. While the processing circuitry receives essentially no electrical power from the relay, the processing circuitry momentarily places the relay driver in the high impendance state so that the processing circuitry may receive electrical power from the relay and determine whether the manually actuated sensor is still actuated. An auxiliary power supply provides electrical power to the processing circuitry while electrical power is not received from the relay.
    • 一种系统选择性地完成一个喇叭电路,通过该喇叭电路向汽车中的喇叭提供电力。 当通过继电器的电流信号至少具有阈值幅度时,继电器连接到电源并完成喇叭电路。 继电器驱动器由处理电路选择性地激活。 继电器驱动器激活时,处于导通状态,当未激活时,继电器驱动器处于高阻塞状态。 当继电器驱动器处于导通状态时,它将继电器与低电位导体串联,从而以至少阈值大小建立电流信号。 处理电路电连接到手动致动的传感器,传感器可以是柔性电位计。 当手动致动的传感器被致动时,处理电路激活继电器驱动器。 当继电器驱动器处于高阻塞状态时,处理电路从继电器接收电力,但当继电器驱动器处于导通状态时,基本上不从继电器接收电力。 虽然处理电路基本上不从继电器接收电力,但是处理电路将瞬时地将继电器驱动器置于高阻止状态,使得处理电路可以从继电器接收电力并且确定手动致动的传感器是否仍然被致动。 辅助电源向处理电路提供电力,而不从继电器接收电力。
    • 7. 发明授权
    • Magnetic visual display
    • 磁性视觉显示
    • US5295837A
    • 1994-03-22
    • US879815
    • 1992-05-07
    • Michael GilanoMichael A. GilanoGordon B. Langford
    • Michael GilanoMichael A. GilanoGordon B. Langford
    • B43L1/00G09F9/37
    • B43L1/008G09F9/375
    • An apparatus for providing a magnetic visual display in which a magnetic field is exposed to a dispersion medium sealed between two surfaces and having distributed therein randomly-oriented magnetically-active flakes, thereby causing alignment of a portion of the flakes and allowing transmission of light through the dispersion medium in the region of the aligned flakes to form an image by the contrast between the areas of aligned and randomly-oriented flakes. The contrast may be enhanced by a light source on the opposite side of the device from the viewer. The image may be colored by coloring either of the surfaces, the dispersion medium, the flakes or the light from the light source.
    • 一种用于提供磁性视觉显示的装置,其中磁场暴露于密封在两个表面之间的分散介质,并且分布在其中的随机取向的磁性活性薄片,从而使薄片的一部分对准,并允许光透过 在对准的薄片区域中的分散介质通过对准和随机取向的薄片的区域之间的对比来形成图像。 可以通过来自观察者的装置的相对侧上的光源来增强对比度。 可以通过使来自光源的表面,分散介质,薄片或光的着色来使图像着色。