Linearity enhancement for capacitive sensors
    1.
    发明申请
    Linearity enhancement for capacitive sensors 有权
    电容式传感器的线性增强

    公开(公告)号:US20050218911A1

    公开(公告)日:2005-10-06

    申请号:US10818863

    申请日:2004-04-06

    申请人: Timothy Denison

    发明人: Timothy Denison

    摘要: A method for enhancing the linearity of a differential capacitive sensor as a function of beam displacement. An ac-modulated feedback connection from a sensor output terminal to a movable beam electrode is provided through a fix-up capacitor. The output terminal signal is inverted in the feedback connection so that the fix-up capacitor reduces the capacitance from the fixed electrodes to the beam electrode. When the fix-up capacitor value is chosen approximately equal to the fixed capacitance of the differential capacitor, the feedback circuit compensates for the effect of this fixed capacitance. The linearity of the output as a function of the displacement of the beam is improved. Thus, the signal-to-noise ratio of devices such as accelerometers may be increased by allowing sensors to employ a large displacement range. The invention may be used in differential accelerometers and in other types of differential capacitive sensors.

    摘要翻译: 一种用于增强差分电容传感器作为光束位移的函数的线性度的方法。 通过固定电容器提供从传感器输出端子到可移动光束电极的交流调制反馈连接。 输出端子信号在反馈连接中反转,使得固定电容器将电容从固定电极减小到光束电极。 当固定电容值被选择为近似等于差分电容器的固定电容时,反馈电路补偿该固定电容的影响。 作为光束位移的函数的输出的线性度得到改善。 因此,可以通过允许传感器采用大的位移范围来增加诸如加速度计之类的装置的信噪比。 本发明可以用于差分加速度计和其他类型的差动电容式传感器。

    Implantable medical devices and systems having dual frequency inductive telemetry and recharge
    3.
    发明授权
    Implantable medical devices and systems having dual frequency inductive telemetry and recharge 有权
    具有双频感应遥测和再充电的可植入医疗设备和系统

    公开(公告)号:US08909351B2

    公开(公告)日:2014-12-09

    申请号:US13019568

    申请日:2011-02-02

    摘要: Implantable devices and related systems utilize coils or coil portions of a coil for inductive telemetry at one frequency and recharge at another frequency. The coils or coil portions are included in one or more tank circuits that share at least one node between the coils or coil portions. The recharge application may be provided with variations for aspects including power management and rectification. The telemetry application may be provided with variations for aspects including receiver connectivity for the downlink and coil driving for the uplink.

    摘要翻译: 可植入装置和相关系统利用线圈的线圈或线圈部分以一个频率进行感应遥测,并以另一个频率再充电。 线圈或线圈部分被包括在共享线圈或线圈部分之间的至少一个节点的一个或多个储罐回路中。 充电应用可以提供包括功率管理和整流的方面的变化。 可以向遥测应用提供包括下行链路的接收机连接和用于上行链路的线圈驱动的方面的变化。

    Implantable medical devices and systems having power management for recharge sessions
    4.
    发明授权
    Implantable medical devices and systems having power management for recharge sessions 有权
    可植入医疗设备和具有充电会话电源管理的系统

    公开(公告)号:US09042995B2

    公开(公告)日:2015-05-26

    申请号:US12699830

    申请日:2010-02-03

    IPC分类号: A61N1/378

    CPC分类号: A61N1/378

    摘要: Implantable devices and related systems utilize power management features in conjunction with a recharge circuit that includes a coil and capacitance. The reactance such as the capacitance and/or inductance may be variable such that in the event of an overcharge condition, the reactance may be varied to change the resonant frequency of the circuit of the coil from the recharge frequency to another frequency to reduce the power being received. Other power management features may additionally or alternatively be employed. For instance, the device may send an uplink telemetry signal to an external device to request that recharge power be decreased. The device may switch additional resistance into the circuit of the coil to reduce the Q of the circuit. As another example, the device may clamp the circuit of the coil to ground.

    摘要翻译: 可植入设备和相关系统利用电源管理功能与包括线圈和电容的再充电电路相结合。 诸如电容和/或电感的电抗可以是可变的,使得在过充电条件的情况下,可以改变电抗以将线圈的电路的谐振频率从再充电频率改变到另一个频率以减小功率 被收到 可以额外地或替代地使用其他功率管理特征。 例如,设备可以向外部设备发送上行链路遥测信号,以请求减少补充功率。 器件可以将额外的电阻切换到线圈的电路中以减少电路的Q。 作为另一示例,该装置可以将线圈的电路钳位到地。

    IMPLANTABLE MEDICAL DEVICES AND SYSTEMS HAVING POWER MANAGEMENT FOR RECHARGE SESSIONS
    5.
    发明申请
    IMPLANTABLE MEDICAL DEVICES AND SYSTEMS HAVING POWER MANAGEMENT FOR RECHARGE SESSIONS 有权
    具有电力管理的可植入医疗器械和系统用于充电会议

    公开(公告)号:US20110190853A1

    公开(公告)日:2011-08-04

    申请号:US12699830

    申请日:2010-02-03

    IPC分类号: A61N1/378

    CPC分类号: A61N1/378

    摘要: Implantable devices and related systems utilize power management features in conjunction with a recharge circuit that includes a coil and capacitance. The reactance such as the capacitance and/or inductance may be variable such that in the event of an overcharge condition, the reactance may be varied to change the resonant frequency of the circuit of the coil from the recharge frequency to another frequency to reduce the power being received. Other power management features may additionally or alternatively be employed. For instance, the device may send an uplink telemetry signal to an external device to request that recharge power be decreased. The device may switch additional resistance into the circuit of the coil to reduce the Q of the circuit. As another example, the device may clamp the circuit of the coil to ground.

    摘要翻译: 可植入设备和相关系统利用电源管理功能与包括线圈和电容的再充电电路相结合。 诸如电容和/或电感的电抗可以是可变的,使得在过充电条件的情况下,可以改变电抗以将线圈的电路的谐振频率从再充电频率改变到另一频率以减小功率 被收到 可以额外地或替代地使用其他功率管理特征。 例如,设备可以向外部设备发送上行链路遥测信号,以请求减少补充功率。 器件可以将额外的电阻切换到线圈的电路中以减少电路的Q。 作为另一示例,该装置可以将线圈的电路钳位到地。

    IMPLANTABLE MEDICAL DEVICES AND SYSTEMS HAVING DUAL FREQUENCY INDUCTIVE TELEMETRY AND RECHARGE
    6.
    发明申请
    IMPLANTABLE MEDICAL DEVICES AND SYSTEMS HAVING DUAL FREQUENCY INDUCTIVE TELEMETRY AND RECHARGE 有权
    具有双频感应电视和充电的可植入医疗器械和系统

    公开(公告)号:US20110190852A1

    公开(公告)日:2011-08-04

    申请号:US13019568

    申请日:2011-02-02

    IPC分类号: A61N1/08

    摘要: Implantable devices and related systems utilize coils or coil portions of a coil for inductive telemetry at one frequency and recharge at another frequency. The coils or coil portions are included in one or more tank circuits that share at least one node between the coils or coil portions. The recharge application may be provided with variations for aspects including power management and rectification. The telemetry application may be provided with variations for aspects including receiver connectivity for the downlink and coil driving for the uplink.

    摘要翻译: 可植入装置和相关系统利用线圈的线圈或线圈部分以一个频率进行感应遥测,并以另一个频率再充电。 线圈或线圈部分被包括在共享线圈或线圈部分之间的至少一个节点的一个或多个储罐回路中。 充电应用可以提供包括功率管理和整流的方面的变化。 可以向遥测应用提供包括下行链路的接收机连接和用于上行链路的线圈驱动的方面的变化。

    Capacitive sensor with damping
    7.
    发明申请
    Capacitive sensor with damping 审中-公开
    带阻尼的电容式传感器

    公开(公告)号:US20060266118A1

    公开(公告)日:2006-11-30

    申请号:US11394386

    申请日:2006-03-28

    IPC分类号: G01P15/125

    摘要: A capacitive accelerometer. The capacitive accelerometer includes a first fixed electrode and second fixed electrode. The first fixed electrode is separated from the second fixed electrode by a gap. A movable electrode is positioned between the first and second fixed electrodes, the movable electrode being movable between the first and second fixed electrodes. The movable electrode is dimensioned to produce a squeeze damping effect between the movable and fixed electrodes to damp movement of the movable electrode. Circuitry determines the position of the movable electrode in any position across substantially the entire gap between the first and second fixed electrodes.

    摘要翻译: 电容式加速度计 电容加速度计包括第一固定电极和第二固定电极。 第一固定电极通过间隙与第二固定电极分离。 可动电极位于第一和第二固定电极之间,可动电极可在第一和第二固定电极之间移动。 可移动电极的尺寸被设计成在可移动电极和固定电极之间产生挤压阻尼效应,以阻止可动电极的运动。 电路确定可移动电极在跨过第一和第二固定电极之间的整个间隙的任何位置的位置。