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1. 发明授权

US5024460A Output filter and method for on/off semi-active suspension control 失效
标题翻译：输出滤波器和开/关半主动悬架控制方法
公开(公告)号：US5024460A
公开(公告)日：1991-06-18
申请号：US454309
申请日：1989-12-26
申请人： Reed D. Hanson , Scott T. Radcliffe
发明人： Reed D. Hanson , Scott T. Radcliffe
IPC分类号： B60G17/015 , B60G17/018 , B60G17/08
CPC分类号： B60G17/018 , B60G2400/102 , B60G2400/106 , B60G2400/202 , B60G2400/204 , B60G2400/252 , B60G2400/40 , B60G2500/102 , B60G2600/02 , B60G2600/12 , B60G2600/14 , B60G2600/16 , B60G2600/26 , B60G2600/604 , B60G2600/70 , B60G2600/74 , B60G2600/76 , B60G2600/90 , B60G2800/22
摘要： In a suspension control comprising a damper having a valve switchable at frequencies within a desired activation frequency range between high and low damping modes, an unfiltered damper signal is repeatedly derived from vehicle suspension related variables at a range significantly greater than the desired activation frequency range. An output filter derives a filtered damper signal from each successive binary actuator force signal by (1) resetting a timer each time the unfiltered damper signal changes value, (2) causing the filtered damper signal to be the same value as the unfiltered damper signal while the timer is inactive, and (3) maintaining the filtered damper signal value unchanged while the timer is active. The damper is controlled in response to the filtered damper signal, whereby unnecessary high frequency switching of the valve is reduced but the damper responds without unnecessary delay to signals within the desired activation frequency range.

2. 发明授权

US06819103B2 Lorentz force driven mechanical filter/mixer designs for RF applications 失效
标题翻译：洛伦兹力驱动的机械滤波器/混频器设计用于射频应用
公开(公告)号：US06819103B2
公开(公告)日：2004-11-16
申请号：US10276983
申请日：2002-11-21
申请人： John L. Champion , Robert Osiander , Robert B. Givens , Dennis K. Wickenden , Daniel G. Jablonski , James H. Higbie , Scott T. Radcliffe , Margaret A. Darrin , Thomas J. Kistenmacher , Douglas A. Oursler
发明人： John L. Champion , Robert Osiander , Robert B. Givens , Dennis K. Wickenden , Daniel G. Jablonski , James H. Higbie , Scott T. Radcliffe , Margaret A. Darrin , Thomas J. Kistenmacher , Douglas A. Oursler
IPC分类号： G01R3300
CPC分类号： H03H9/2447 , H03D7/00 , H03H9/02259 , H03H2009/02511
摘要： A Lorentz force-driven mechanical resonator apparatus that utilizes a high-Q resonant structure as both a mixing device and a high-Q bandpass filter. Specifically, an external time varying, but quasistatic, magnetic field is applied to the resonating device while simultaneously running a time varying electrical current through the device. The resulting Lorentz force (I×B) is proportional to the vector product of the electrical current in the bar (I) and the external magnetic field (B). Integrating such a resonant device with a magnetic field coil produces the functionality of an ideal radio frequency (RF) mixer coupled with a high-Q intermediate frequency (IF) filter. Wide tunability provides the capability to scan, or even step, an array of filters having very narrow bandwidths via a common local oscillator to a desired frequency range.
摘要翻译：利用高Q谐振结构作为混合装置和高Q带通滤波器的洛伦兹力驱动机械谐振器装置。具体地，外部时变，但准静态的磁场被施加到谐振装置，同时同时运行时变电流通过该装置。所产生的洛伦兹力（IxB）与条（I）中的电流和外部磁场（B）的矢量积成比例。将这种谐振装置与磁场线圈集成产生与高Q中频（IF）滤波器耦合的理想射频（RF）混频器的功能。宽可调性提供了通过公共本地振荡器扫描甚至步进具有非常窄带宽的滤波器阵列至所需频率范围的能力。

3. 发明授权

US6011515A System for measuring average speed and traffic volume on a roadway 失效
标题翻译：用于测量道路上的平均速度和交通量的系统
公开(公告)号：US6011515A
公开(公告)日：2000-01-04
申请号：US944798
申请日：1997-10-06
申请人： Scott T. Radcliffe , Eric D. Holm
发明人： Scott T. Radcliffe , Eric D. Holm
IPC分类号： G01P3/64 , G08G1/042 , G01S3/02
CPC分类号： G08G1/042 , G01P3/64
摘要： A vehicular traffic sensor capable of measuring traffic speed and volume in all weather conditions and at a low installed cost. The sensor makes use of multi-path interference of ambient radio frequency (RF) signals. The ambient RF signals can be, for example, control signals constantly transmitted by cellular telephone base stations. As vehicles travel along the roadway, they reflect RF signals in all directions. An antenna mounted near the side of the road will detect signals from the transmitter and signals reflected off the vehicle. Variations in the amplitude of the combination of the two signals can be processed using a method that allows the sensor to determine traffic speed and volume. This information can then be sent directly to a traffic management center. This provides an inexpensive sensor for wide-area traffic monitoring.
摘要翻译：一种能够在所有天气条件下以低安装成本测量交通速度和体积的车辆交通传感器。传感器利用环境射频（RF）信号的多径干扰。环境RF信号可以是例如由蜂窝电话基站不断发送的控制信号。当车辆沿着道路行驶时，它们会反射所有方向的射频信号。安装在道路旁边的天线将检测到发射机的信号和从车辆反射的信号。可以使用允许传感器确定交通速度和体积的方法来处理两个信号的组合的振幅的变化。该信息可以直接发送到交通管理中心。这为广域流量监控提供了便宜的传感器。

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