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    • 2. 发明授权
    • Systems and methods for sensing position and movement
    • 用于感测位置和运动的系统和方法
    • US4767973A
    • 1988-08-30
    • US70349
    • 1987-07-06
    • Stephen C. JacobsenRichard P. PhillipsJohn E. Wood
    • Stephen C. JacobsenRichard P. PhillipsJohn E. Wood
    • G01B7/00G01B7/14G01D5/18G01D5/241G01R29/12G01V3/08G11B21/24H04R19/00H04R23/00
    • G01D5/18H04R19/00H04R23/006
    • Sensor systems and methods for detecting the position and/or movement of an object in multiple degrees of freedom. The sensor system of the present invention comprises at least one field-effect transistor (FET), the geometrical configuration of the FET being selected so as to provide the desired sensitivity. The FET is preferably provided with a conductive gate adjacent to but insulated from the channel region of the FET. An object whose position and/or movement is to be detected is prepared such that an electric field emanates from the object.The FET is brought into the vicinity of the object, and the electric field emanating from the object interacts with the gate and/or channel region of the FET so as to modify the magnitude of the electrical current flowing through the channel region. The current through the channel region is detected and is used to obtain information about the position and movement of the object relative to the channel region of the FET. By positioning a plurality of substantially coplanar FETs in the vicinity of the object, the position and/or movement of the object in any desired number of degrees of freedom can be detected and monitored.
    • 用于以多个自由度检测物体的位置和/或运动的传感器系统和方法。 本发明的传感器系统包括至少一个场效应晶体管(FET),选择FET的几何结构以提供期望的灵敏度。 FET优选地设置有与FET的沟道区域相邻但绝缘的导电栅极。 准备要检测其位置和/或移动的物体,使得电场从物体发出。 FET被带到物体附近,并且从物体发出的电场与FET的栅极和/或沟道区相互作用,以便改变流过沟道区的电流的大小。 检测通过通道区域的电流,并且用于获得关于物体相对于FET的沟道区域的位置和移动的信息。 通过将多个基本上共面的FET定位在物体附近,可以检测和监视物体在任何所需数量的自由度中的位置和/或移动。
    • 3. 发明授权
    • Transcutaneous energy transmission system with full wave Class E rectifier
    • 全波E级整流器经皮能量传输系统
    • US06240318B1
    • 2001-05-29
    • US09427414
    • 1999-10-27
    • Richard P. Phillips
    • Richard P. Phillips
    • A61N1378
    • A61N1/08A61N1/3787
    • A transcutaneous energy transmission system (TETS) including a Class E full wave low dv/dt rectifier in the implantable receiver circuit. The TETS provides power for any kind of implantable device requiring a source of DC power for operation. The Class E full wave low dv/dt rectifier provides efficient conversion of radio frequency power to direct current power. Another embodiment of a TETS includes a Class E full wave low dv/dt rectifier with circuitry for synchronous rectification. A receiver circuit including a Class E full wave low dv/dt rectifier configured for use with a transmitter circuit is also disclosed.
    • 在可植入接收器电路中包括E级全波低dv / dt整流器的经皮能量传输系统(TETS)。 TETS为需要直流电源的任何种类的可植入装置提供电力供操作。 E级全波低dv / dt整流器提供射频功率到直流电源的高效转换。 TETS的另一个实施例包括具有用于同步整流的电路的E类全波低dv / dt整流器。 还公开了一种包括被配置为与发射机电路一起使用的E类全波低dv / dt整流器的接收机电路。