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132 条记录 (耗时 0.026 秒)

    Piezo-effect transistor device and applications
    5.
    发明授权
    Piezo-effect transistor device and applications 有权
    压电效应晶体管器件及应用

    公开(公告)号：US08159854B2

    公开(公告)日：2012-04-17

    申请号：US12495027

    申请日：2009-06-30

    申请人： Bruce G. Elmegreen ,  Lia Krusin-Elbaum ,  Glenn J. Martyna ,  Xiao Hu Liu ,  Dennis M. Newns

    发明人： Bruce G. Elmegreen ,  Lia Krusin-Elbaum ,  Glenn J. Martyna ,  Xiao Hu Liu ,  Dennis M. Newns

    IPC分类号： G11C5/06

    CPC分类号： H03K19/02 ,  G11C11/412 ,  G11C13/0002 ,  H01L49/00 ,  Y10T29/42

    摘要： A piezo-effect transistor (PET) device includes a piezoelectric (PE) material disposed between first and second electrodes; and a piezoresistive (PR) material disposed between the second electrode and a third electrode, wherein the first electrode comprises a gate terminal, the second electrode comprises a common terminal, and the third electrode comprises an output terminal such that an electrical resistance of the PR material is dependent upon an applied voltage across the PE material by way of an applied pressure to the PR material by the PE material.

    摘要翻译： 压电效应晶体管（PET）器件包括设置在第一和第二电极之间的压电（PE）材料; 以及设置在第二电极和第三电极之间的压阻（PR）材料，其中第一电极包括栅极端子，第二电极包括公共端子，并且第三电极包括输出端子，使得PR的电阻 材料取决于PE材料上施加的电压，通过PE材料对PR材料的施加压力。

    Method, apparatus and computer program product for predicting a fault utilizing multi-resolution classifier fusion
    8.
    发明授权
    Method, apparatus and computer program product for predicting a fault utilizing multi-resolution classifier fusion 有权
    使用多分辨率分类器融合预测故障的方法，装置和计算机程序产品

    公开(公告)号：US08112368B2

    公开(公告)日：2012-02-07

    申请号：US12045408

    申请日：2008-03-10

    申请人： Neil H. Eklund ,  Xiao Hu

    发明人： Neil H. Eklund ,  Xiao Hu

    IPC分类号： G06F15/18 ,  G06N3/00

    CPC分类号： G06F11/008 ,  G06K9/6293

    摘要： A method, apparatus and computer program product are provided to predict faults. Initially, a plurality of features are provided to a plurality of models. A subset of features is selected for each model. The plurality of features selected by a respective model is dependent upon a time scale associated with a respective model. As a result of their dependence upon different time scales, the plurality of selected features provided to a first model will differ from those provided to a second model. The plurality of models process the respective plurality of selected features. The outputs from the plurality of models are fused to generate a measure indicative of an impending fault. By providing different selected features to the models that are dependent upon the associated time scales and by then combining the outputs of the plurality of models, the resulting measure of an impending fault may accurately predict a fault well in advance of its occurrence.

    摘要翻译： 提供了一种方法，装置和计算机程序产品来预测故障。 最初，多个特征被提供给多个模型。 为每个模型选择一个功能的子集。 由相应模型选择的多个特征取决于与相应模型相关联的时间尺度。 作为其对不同时间尺度的依赖性的结果，提供给第一模型的多个所选特征将不同于提供给第二模型的特征。 多个模型处理相应的多个所选特征。 来自多个模型的输出被融合以产生指示即将发生的故障的测量。 通过向依赖于相关时间尺度的模型提供不同的选定特征，并且通过组合多个模型的输出，即将发生的故障的结果测量可以在其出现之前很好地准确地预测故障。

    Series arc fault interrupters and methods
    10.
    发明授权
    Series arc fault interrupters and methods 有权
    串联电弧故障断路器及方法

    公开(公告)号：US07826184B2

    公开(公告)日：2010-11-02

    申请号：US12290246

    申请日：2008-10-29

    申请人： Cecil Rivers ,  Weizhong Yan ,  Yingneng Zhou ,  Xiao Hu ,  Sean Dwyer ,  Pradeep Vijayan ,  Vijaysai Prasad ,  Karim Younsi

    发明人： Cecil Rivers ,  Weizhong Yan ,  Yingneng Zhou ,  Xiao Hu ,  Sean Dwyer ,  Pradeep Vijayan ,  Vijaysai Prasad ,  Karim Younsi

    IPC分类号： H02H3/16

    CPC分类号： H02H1/0015

    摘要： A circuit interrupter for interrupting current on a line conductor is provided. The circuit interrupter includes separable contacts, a trip mechanism, a bimetal, a microprocessor, a series arc detection sequence, a low-pass filter circuit, and a high-pass filter circuit. The trip mechanism selectively opens the separable contacts when activated. The series arc detection sequence is resident on the microprocessor and includes a plurality of series fault detection algorithms. The low-pass filter circuit provides a low-pass signal to the series arc detection sequence. The high-pass filter circuit provides a high-pass signal to the series arc detection sequence. The sequence selects a particular algorithm from the plurality of algorithms based on the low-pass signal. The sequence calculates a plurality of statistical features from the high-pass signal and sends an output signal to activate the trip mechanism based on a comparison of the plurality of statistical features to the particular algorithm.

    摘要翻译： 提供了用于中断线路导体上的电流的断路器。 电路断路器包括可分离触点，跳闸机构，双金属，微处理器，串联电弧检测序列，低通滤波器电路和高通滤波器电路。 跳闸机构在激活时选择性地打开可分离触点。 串联电弧检测序列驻留在微处理器上，包括多个串联故障检测算法。 低通滤波器电路为串联电弧检测序列提供低通信号。 高通滤波电路为串联电弧检测序列提供高通信号。 该序列基于低通信号从多个算法中选择特定算法。 该序列从高通信号计算多个统计特征，并且基于多个统计特征与特定算法的比较来发送输出信号以激活跳闸机制。