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1. 发明申请

WO2009042749A3 DETECTING OVERLOADING OF AN ANALOG-TO-DIGITAL CONVERTER OF AN IMPLANTABLE MEDICAL DEVICE 审中-公开
标题翻译：检测可移植医疗设备的模拟数字转换器的过载
公开(公告)号：WO2009042749A3
公开(公告)日：2009-09-17
申请号：PCT/US2008077631
申请日：2008-09-25
申请人： MEDTRONIC INC , TAN WENXIAO , ANDERSON JOEL A , HEINKS MICHAEL W
发明人： TAN WENXIAO , ANDERSON JOEL A , HEINKS MICHAEL W
IPC分类号： A61N1/37 , H03M1/12
CPC分类号： H03M3/366 , A61N1/3706 , A61N1/3718 , H03M3/434
摘要： In general, this disclosure is related to detecting overload within an analog-to-digital converter (ADC) of an implantable medical device (IMD). The IMD may include an overload detection module that determines whether the ADC is operating in an overload condition. When the overload detection module determines the ADC is operating in the overload condition for a particular period of time, the ADC may send an overload signal to a processor that processes the output of the ADC. The overload signal notifies the processor that the ADC is operating in or is close to operating in the overload condition. In response to the indication from the ADC, the processor of the IMD may disregard the output of the ADC. The processor may continue to disregard the output of the ADC until the overload signal is deactivated, thereby indicating that the ADC is no longer in an overloaded condition.
摘要翻译：通常，本公开涉及检测可植入医疗装置（IMD）的模数转换器（ADC）中的过载。 IMD可以包括一个过载检测模块，用于确定ADC是否工作在过载状态。当过载检测模块确定ADC在特定时间段内处于过载状态时，ADC可能会向处理ADC输出的处理器发送过载信号。过载信号通知处理器ADC正在运行或接近工作在过载状态。响应于ADC的指示，IMD的处理器可能会忽略ADC的输出。处理器可以继续忽略ADC的输出，直到过载信号被去激活，从而指示ADC不再处于过载状态。

2. 发明申请

WO2008112828A3 SWITCHED CAPACITOR NOTCH FILTER CIRCUITS 审中-公开
标题翻译：开关电容器滤波电路
公开(公告)号：WO2008112828A3
公开(公告)日：2008-11-20
申请号：PCT/US2008056748
申请日：2008-03-12
申请人： TEXAS INSTRUMENTS INC , TAN WENXIAO
发明人： TAN WENXIAO
IPC分类号： H03B1/00 , G01N27/04 , H03K3/45 , H03K3/59 , H03K5/00 , H03K17/80 , H03K17/90 , H04B1/10
CPC分类号： H03H19/004
摘要： Switched capacitor notch filter circuits are disclosed. An example switched capacitor notch filter circuit (200) described herein includes a switched capacitor amplifier (202) to receive an input signal and a first feedback signal, to amplify the input signal and the first feedback signal, and to output an output signal, a first integrator (206) to receive the output signal and a second feedback signal, to integrate the output signal and the second feedback signal, and to output the first feedback signal, a second integrator (208) to receive the first feedback signal, to integrate the first feedback signal, and to output the second feedback signal, a sample and hold (204) to receive the output signal, to periodically store a value of the output signal, and to output the value of the output signal, and a first switch (PH2B6) to couple the sample and hold to the output signal when the sample and hold is to store the value of the output signal and to isolate the sample and hold from the output signal when the sample and hold is to output the value of the output signal.
摘要翻译：公开了开关电容器陷波滤波器电路。本文所述的示例性开关电容器陷波滤波器电路（200）包括接收输入信号和第一反馈信号的开关电容放大器（202），以放大输入信号和第一反馈信号，并输出输出信号，第一积分器（206），用于接收输出信号和第二反馈信号，以对输出信号和第二反馈信号进行积分，并输出第一反馈信号;第二积分器（208），用于接收第一反馈信号，第一反馈信号，并输出第二反馈信号，采样和保持（204）以接收输出信号，周期性地存储输出信号的值，并输出输出信号的值，以及第一开关（PH2B6）将采样和保持连接到输出信号，当采样和保持将存储输出信号的值，并在采样和保持输出v时将采样和保持与输出信号隔离输出信号。

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