MOTOR BALANCED ACTIVE USER INTERFACE ASSEMBLY
    1.
    发明申请
    MOTOR BALANCED ACTIVE USER INTERFACE ASSEMBLY 失效
    电机平衡有源用户界面组件

    公开(公告)号:US20080079381A1

    公开(公告)日:2008-04-03

    申请号:US11676845

    申请日:2007-02-20

    IPC分类号: G05B13/02 G05G9/00 G05D15/00

    摘要: An active user interface assembly includes a user interface, and one or more feedback motors coupled to the user interface. The one or more feedback motors, when energized, supply a feedback force to the user interface that opposes user interface movement. One of the feedback motors is disposed such that its center of gravity is located at a position relative to the user interface to mass balance the user interface when it is in the null position. The configurations allow for the center of gravity of a feedback motor to be positioned in a manner that alleviates the need for counterbalance weights.

    摘要翻译: 活动用户界面组件包括用户界面和耦合到用户界面的一个或多个反馈电机。 一个或多个反馈电机通电时,向用户界面提供反对用户界面移动的反馈力。 反馈电动机中的一个被布置成使得其重心位于相对于用户界面的位置,以在用户界面处于零位置时大量平衡。 该配置允许反馈电动机的重心定位成减轻对平衡重量的需要。

    Apparatus and method for expanding the frequency range over which
electrical signal amplitudes can be accurately measured
    4.
    发明授权
    Apparatus and method for expanding the frequency range over which electrical signal amplitudes can be accurately measured 失效
    用于扩展频率范围的装置和方法,可以精确地测量电信号幅度

    公开(公告)号:US4978907A

    公开(公告)日:1990-12-18

    申请号:US349724

    申请日:1989-05-10

    申请人: Douglas C. Smith

    发明人: Douglas C. Smith

    IPC分类号: G01R1/067

    CPC分类号: G01R1/06772

    摘要: It has been found that the ground lead of a measurement instrument probe has an inductance which, when coupled with the capacitance of the rest of the probe, forms a resonant circuit. The net result is a peak in the frequency response of the probe which interferes with accurate amplitude measurements of test signals having a frequency above some threshold. Pursuant to the present invention, a resistor is added to the measurement instrument probe whose value substantially flattens the frequency response of the probe and permits accurate amplitude measurements over a substantially greater frequency range. This resistor, either having a fixed or adjustable value, can be added to the measurement instrument probe or can be included in an adjunct which fits over a probe end.

    摘要翻译: 已经发现,测量仪器探针的接地引线具有当与探针的其余部分的电容耦合时形成谐振电路的电感。 最终结果是探针的频率响应中的峰值,其干扰具有高于某个阈值的频率的测试信号的精确幅度测量。 根据本发明,在测量仪器探针中加入一个电阻,其值基本上平坦于探针的频率响应,并允许在更大的频率范围内进行精确的振幅测量。 该电阻器具有固定值或可调节值,可以添加到测量仪器探头中,或者可以包含在适合探头端的辅助器中。

    High energy particle arrestor for air turbine starters
    5.
    发明授权
    High energy particle arrestor for air turbine starters 有权
    用于空气涡轮起动器的高能量微粒捕集器

    公开(公告)号:US06533541B1

    公开(公告)日:2003-03-18

    申请号:US10004906

    申请日:2001-12-04

    IPC分类号: F01D2100

    摘要: One or more particle arrestor rings are mounted in a curved radial flow portion of a gas turbine annular flow passage. The arrestor rings block line of sight paths between the turbine wheel and the annular flow passage outlet. Thus, the arrestor rings substantially inhibit relatively high energy particles from exiting the gas turbine housing, thus substantially inhibiting collateral damage to surrounding equipment and structure.

    摘要翻译: 一个或多个避雷器环安装在燃气轮机环形流动通道的弯曲的径向流动部分中。 避雷器环阻挡在涡轮机叶轮和环形流动通道出口之间的视线路径。 因此,避雷器环基本上抑制相对高能量的颗粒离开燃气轮机壳体,从而基本上抑制对周围设备和结构的附带损坏。

    Scheme for determining position of surface contact of cathode ray tube
screen
    6.
    发明授权
    Scheme for determining position of surface contact of cathode ray tube screen 失效
    确定阴极射线管屏幕表面接触位置的方案

    公开(公告)号:US5119075A

    公开(公告)日:1992-06-02

    申请号:US539250

    申请日:1990-06-18

    申请人: Douglas C. Smith

    发明人: Douglas C. Smith

    IPC分类号: G06F3/038 H04N7/00 H04N7/10

    CPC分类号: G06F3/0386 H04N7/005 H04N7/10

    摘要: A touch-screen scheme is employed in an arrangement wherein an inquiry and a choice of responses thereto are displayed on a CRT screen. In accordance with this scheme, a first touch-screen device is held against a predetermined spot on the screen. A selection is made by holding a second touch-screen device against the area of the screen corresponding to the desired response. When the electron beam which scans the CRT screen sweeps across the first and second touch-screen devices at different times, the two device generate two signal outputs. The touch-position or the selection is determined based on the time difference between the two signal outputs.

    摘要翻译: 在CRT屏幕上显示询问和对其的选择的布置中采用触摸屏方案。 根据该方案,第一触摸屏设备被保持在屏幕上的预定位置。 通过将第二触摸屏设备保持在对应于期望响应的屏幕区域上来进行选择。 当扫描CRT屏幕的电子束在不同时间扫过第一和第二触摸屏设备时,两个设备产生两个信号输出。 基于两个信号输出之间的时间差确定触摸位置或选择。

    Resistive line circuit
    7.
    发明授权
    Resistive line circuit 失效
    电阻线路电路

    公开(公告)号:US4554412A

    公开(公告)日:1985-11-19

    申请号:US633478

    申请日:1984-07-23

    申请人: Douglas C. Smith

    发明人: Douglas C. Smith

    CPC分类号: H04M19/001 Y10T307/281

    摘要: Resistive battery feed circuits are normally not used because of lack of power supply noise rejection and attendant crosstalk coupling. In this circuit the opamp and surrounding circuitry insure that power supply and ground noise do not couple into the tip and ring circuits as a metallic signal and improve crosstalk attenuation. In addition, the opamp is used to split the 48 volt supply.

    摘要翻译: 由于缺少电源噪声抑制和伴随的串扰耦合,通常不使用电阻式电池馈电电路。 在该电路中,运算放大器和周围电路确保电源和接地噪声不会作为金属信号耦合到尖端和环形电路中,并改善串扰衰减。 此外,运算放大器用于分离48伏电源。

    Touch-screen arrangement
    9.
    发明授权
    Touch-screen arrangement 失效
    触摸屏布置

    公开(公告)号:US5184115A

    公开(公告)日:1993-02-02

    申请号:US532721

    申请日:1990-06-04

    IPC分类号: G06F3/033 G06F3/046

    CPC分类号: G06F3/046 G06F3/03545

    摘要: In an arrangement wherein an inquiry and a choice of respones thereto are displayed on a CRT screen, a selection is made by holding a touch-screen device against the area of the screen corresponding to the desired response. Such a touch-screen device is designed to have an inductive coil in its tip. When an electron beam which scans the CRT screen sweeps across the tip of the touch-screen device, an electrical signal is induced on the coil. The touch-position or the selection is determined based on a knowledge of the position of the electron beam on the screen at the time of the electrical signal induction.

    摘要翻译: 在CRT屏幕上显示询问和对其的选择的布置中,通过将触摸屏设备保持在对应于期望响应的屏幕区域上来进行选择。 这种触摸屏设备被设计成在其尖端中具有感应线圈。 当扫描CRT屏幕的电子束扫过触摸屏设备的尖端时,在线圈上感应出电信号。 基于在电信号感应时屏幕上的电子束的位置的知识来确定触摸位置或选择。

    Communication line transient protection
    10.
    发明授权
    Communication line transient protection 失效
    通讯线路瞬态保护

    公开(公告)号:US4751607A

    公开(公告)日:1988-06-14

    申请号:US895224

    申请日:1986-08-11

    申请人: Douglas C. Smith

    发明人: Douglas C. Smith

    CPC分类号: H04B3/28

    摘要: The severity of the problems of transmitting high speed data over a regular twisted wire pair are legendary. These problems arise from a variety of conditions, including the capacitance of the wire (which increases with length) and the propensity of unshielded wire to pickup high induced voltages. An arrangement is disclosed that is suitable for short, as well as long, wire distances and which also effectively eliminates the interference problem caused by induced voltages, including those causes by electrostatic discharge. This arrangement passes two twisted wire pairs through a series of ferrite cores. The twisted wire pairs coming out of the ferrite cores are terminated such that one of the pairs is connected to ground while the signal carrying twisted pair is connected to a small signal balun coil, pulse shaping circuit and low pass filter.

    摘要翻译: 通过普通双绞线传输高速数据的问题的严重性是传奇。 这些问题出现在各种条件下,包括导线的电容(随着长度的增加而增加)和非屏蔽导线拾取高感应电压的倾向。 公开了一种适用于短距离和长距离线路的布置,并且还有效地消除了由感应电压引起的干扰问题,包括那些由静电放电引起的电压。 这种安排通过一系列铁氧体磁芯的两条双绞线对。 从铁氧体磁芯出来的绞合线对终止,使得一对配对连接到地,而信号承载双绞线连接到小信号平衡 - 不平衡转换线圈,脉冲整形电路和低通滤波器。