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    Implantable medical device with sensor self-test feature
    51.
    发明申请
    Implantable medical device with sensor self-test feature 审中-公开
    具有传感器自检功能的植入式医疗设备

    公开(公告)号：US20080081958A1

    公开(公告)日：2008-04-03

    申请号：US11789438

    申请日：2007-04-24

    申请人： Timothy J. Denison ,  Brian B. Lee ,  Keith A. Miesel ,  Eric J. Panken

    发明人： Timothy J. Denison ,  Brian B. Lee ,  Keith A. Miesel ,  Eric J. Panken

    IPC分类号： A61B5/00

    CPC分类号： A61N1/3706 ,  A61B2560/0276 ,  A61N1/36535 ,  A61N1/36542 ,  A61N1/3702

    摘要： An implantable medical device (IMD) applies a sensor self-test when a sensing device generates a sensor signal indicating an event, or when the sensor is used to validate an event detected by another device. The event may be based on a sensed condition that triggers an operational adjustment, such as a therapy or diagnostic adjustment within the IMD. A sensor self-test verifies that an implantable sensing device is functional, and can be performed with or without activating the sensor. Activating the sensor may involve, application of an electrical input signal that causes the sensor to generate an output signal. Alternatively, the sensor self-test may be performed without activating the sensor by analyzing the continuity of a signal path between the sensor and sensor interface circuitry. In either case, a sensor self-test verifies proper operation so that operational adjustments can be made with greater confidence.

    摘要翻译： 当感测装置产生指示事件的传感器信号时，或者当传感器用于验证另一个设备检测到的事件时，可植入医疗设备（IMD）应用传感器自检。 事件可以基于触发操作调整的感测条件，例如IMD内的治疗或诊断调整。 传感器自检可以验证可植入的感测装置是否起作用，并且可以在启动或不启动传感器的情况下执行。 激活传感器可能涉及施加导致传感器产生输出信号的电输入信号。 或者，可以通过分析传感器和传感器接口电路之间的信号路径的连续性而不激活传感器来执行传感器自检。 在任一种情况下，传感器自检将验证正确的操作，以便可以更有信心地进行操作调整。

    Linearity enhancement for capacitive sensors
    52.
    发明授权
    Linearity enhancement for capacitive sensors 有权
    电容式传感器的线性增强

    公开(公告)号：US07078916B2

    公开(公告)日：2006-07-18

    申请号：US10818863

    申请日：2004-04-06

    申请人： Timothy J. Denison

    发明人： Timothy J. Denison

    IPC分类号： G01R27/26

    CPC分类号： G01P15/131 ,  G01D5/2417 ,  G01L1/144 ,  G01L9/12 ,  G01P15/125

    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。

    Integrator topology for continuous integration
    54.
    发明授权
    Integrator topology for continuous integration 失效

    公开(公告)号：US06570432B2

    公开(公告)日：2003-05-27

    申请号：US10133682

    申请日：2002-04-26

    申请人： Timothy J. Denison

    发明人： Timothy J. Denison

    IPC分类号： G06G719

    CPC分类号： G06G7/1865

    摘要： Provided are integrator circuit topologies that enable continuous integration without reset of the integrator circuit. One such integrator circuit includes a first integrator and a second integrator, each of the two integrators having a non-inverting terminal. Each of the non-inverting terminals is connected to an input node to alternately receive an input current for continuous integrator circuit integration without integrator circuit reset. The inverting terminal of the second integrator can be connected to an inverting terminal of the first integrator. The non-inverting terminal of the second integrator can be connected to an output of the first integrator through a first capacitor, and an output of the second integrator can be connected to a non-inverting terminal of the first integrator through a second capacitor. With such a capacitor connection, the capacitors alternately charge and discharge, based on integrator input current that is alternately directed between the non-inverting terminals of the integrators.

    Integrator topplogy for continuous integration
    55.
    发明授权
    Integrator topplogy for continuous integration 失效
    用于连续集成的积分器地形学

    公开(公告)号：US06380790B1

    公开(公告)日：2002-04-30

    申请号：US09502134

    申请日：2000-02-11

    申请人： Timothy J. Denison

    发明人： Timothy J. Denison

    IPC分类号： G06G718

    CPC分类号： G06G7/1865

    摘要： An apparatus includes a switching circuit, an integrator circuit having an input for receiving a first signal from the switching circuit, a sensing circuit having an input for receiving a second signal from the integrator circuit, and a control circuit having an input for receiving a third signal from the sensing circuit and an output for sending a fourth signal to the switching circuit. In certain applications, the integrator circuit includes a first integrator and a second integrator having an inverting terminal connected to an inverting terminal of the first integrator. The second integrator also includes a non-inverting terminal connected to an output of the first integrator through a first capacitor, and an output connected to a non-inverting terminal of the first integrator through a second capacitor.

    摘要翻译： 一种装置包括开关电路，具有用于接收来自开关电路的第一信号的输入端的积分器电路，具有用于从积分电路接收第二信号的输入端的感测电路，以及具有用于接收第三信号的输入端的控制电路 来自感测电路的信号和用于向切换电路发送第四信号的输出。 在某些应用中，积分器电路包括第一积分器和第二积分器，其具有连接到第一积分器的反相端子的反相端子。 第二积分器还包括通过第一电容器连接到第一积分器的输出的非反相端子，以及通过第二电容器连接到第一积分器的非反相端的输出端。