Statistically qualified neuro-analytic failure detection method and system
    1.
    发明授权
    Statistically qualified neuro-analytic failure detection method and system 失效
    统计资格的神经分析故障检测方法和系统

    公开(公告)号:US06353815B1

    公开(公告)日:2002-03-05

    申请号:US09186306

    申请日:1998-11-04

    IPC分类号: G06F9445

    CPC分类号: G05B17/02 G05B23/0254

    摘要: An apparatus and method for monitoring a process involve development and application of a statistically qualified neuro-analytic (SQNA) model to accurately and reliably identify process change. The development of the SQNA model is accomplished in two stages: deterministic model adaption and stochastic model modification of the deterministic model adaptation. Deterministic model adaption involves formulating an analytic model of the process representing known process characteristics, augmenting the analytic model with a neural network that captures unknown process characteristics, and training the resulting neuro-analytic model by adjusting the neural network weights according to a unique scaled equation error minimization technique. Stochastic model modification involves qualifying any remaining uncertainty in the trained neuro-analytic model by formulating a likelihood function, given an error propagation equation, for computing the probability that the neuro-analytic model generates measured process output. Preferably, the developed SQNA model is validated using known sequential probability ratio tests and applied to the process as an on-line monitoring system. Illustrative of the method and apparatus, the method is applied to a peristaltic pump system.

    摘要翻译: 用于监测过程的装置和方法涉及开发和应用统计上合格的神经分析(SQNA)模型,以准确和可靠地识别过程变化。 SQNA模型的发展分为两个阶段:确定性模型适应和确定性模型适应的随机模型修正。 确定性模型适应涉及制定表示已知过程特征的过程的分析模型,用捕获未知过程特征的神经网络增强分析模型,并通过根据独特的缩放方程调整神经网络权重来训练所得到的神经分析模型 误差最小化技术。 随机模型修正涉及通过给出误差传播方程,通过拟定似然函数来计算神经分析模型产生测量过程输出的概率,来限定训练有素的神经分析模型中的任何剩余不确定性。 优选地,开发的SQNA模型使用已知的顺序概率比测试来验证,并作为在线监测系统应用于该过程。 说明该方法和装置,该方法应用于蠕动泵系统。

    Dynamic pre-selector for a GPS receiver
    2.
    发明授权
    Dynamic pre-selector for a GPS receiver 有权
    GPS接收机的动态预选器

    公开(公告)号:US07593706B2

    公开(公告)日:2009-09-22

    申请号:US11313571

    申请日:2005-12-21

    IPC分类号: H04B1/06 H04B7/00

    摘要: A GPS receiver circuit (300) for reducing insertion loss. The receiver circuit (300) includes a switch (304) for diverting input signals between a filtered pathway (312) and a short circuit pathway (310) to an amplifier (314). The amplifier (314) output feeds an automatic gain controller (316) that senses a noise level in the output of the amplifier (314) and adjusts a gain of the amplifier (314) in response to the noise level. The receiver circuit (300) also includes a threshold detector (306) with an input coupled to the output of the automatic gain controller (316) and an output coupled to the switch (304) for selecting between the filtered pathway (312) and the short circuit pathway (310), thereby removing the filter (312) from the signal path if not needed.

    摘要翻译: 一种用于减少插入损耗的GPS接收器电路(300)。 接收器电路(300)包括用于将滤波通路(312)和短路路径(310)之间的输入信号转换到放大器(314)的开关(304)。 放大器(314)输出馈送感测放大器(314)的输出中的噪声电平的自动增益控制器(316),并响应于噪声电平调节放大器(314)的增益。 接收器电路(300)还包括具有耦合到自动增益控制器(316)的输出的输入的阈值检测器(306),以及耦合到开关(304)的输出,用于在滤波后的通路(312)和 短路路径(310),从而如果不需要则从信号路径移除滤波器(312)。

    APPARATUSES AND METHODS FOR SETTING AN ADAPTIVE FREQUENCY BAND FOR POWER LINE COMMUNCIATION
    3.
    发明申请
    APPARATUSES AND METHODS FOR SETTING AN ADAPTIVE FREQUENCY BAND FOR POWER LINE COMMUNCIATION 审中-公开
    用于设置用于电力线通信的自适应频带的装置和方法

    公开(公告)号:US20120027062A1

    公开(公告)日:2012-02-02

    申请号:US12845467

    申请日:2010-07-28

    IPC分类号: H04B3/54 H04B17/00

    摘要: Apparatuses and methods relating to power line communication are disclosed, and in particular, to an adaptive frequency band for power line communication. A power line communication device is disclosed. The power line communication device comprises a cutoff frequency estimator configured for estimating a cutoff frequency for communication in a power line communication network, and a processor operably coupled with the cutoff frequency estimator. The processor is configured to adaptively select boundaries of a frequency band in response to the estimated cutoff frequency. Other apparatuses and methods are disclosed.

    摘要翻译: 公开了与电力线通信相关的装置和方法,特别是涉及用于电力线通信的自适应频带。 公开了电力线通信装置。 电力线通信装置包括被配置为估计用于电力线通信网络中的通信的截止频率的截止频率估计器,以及可操作地与截止频率估计器耦合的处理器。 处理器被配置为响应于估计的截止频率自适应地选择频带的边界。 公开了其他装置和方法。

    Wireless device lighting system
    4.
    发明授权
    Wireless device lighting system 有权
    无线设备照明系统

    公开(公告)号:US07193620B2

    公开(公告)日:2007-03-20

    申请号:US10623890

    申请日:2003-07-21

    IPC分类号: H04M1/00

    摘要: A wireless device lighting system provides backlighting of a display (104) and/or a user interface (1526) of a wireless device (100). A user interface (1526) includes a plurality of buttons (112) for entering information and at least one multicolor LED for emitting light. The at least one multicolor LED is located behind the plurality of buttons (112). The user interface (1526) further includes a connector for connecting the user interface (1526) to the wireless device (100) and a circuit board for mounting the at least one multicolor LED and the connector. The user interface (1526) further includes a light pipe for allowing light emitted from the at least one multicolor LED to be emitted from the buttons (112), the light pipe located between the at least one multicolor LED and the buttons (112). The user interface (1526) further includes a selector for allowing a user to define a color of light for emission by the at least one multicolor LED.

    摘要翻译: 无线设备照明系统提供无线设备(100)的显示器(104)和/或用户接口(1526)的背光。 用户界面(1526)包括用于输入信息的多个按钮(112)和用于发光的至少一个多色LED。 所述至少一个多色LED位于所述多个按钮(112)的后面。 用户界面(1526)还包括用于将用户界面(1526)连接到无线设备(100)的连接器和用于安装至少一个多色LED和连接器的电路板。 用户界面(1526)还包括一个光管,用于允许从所述至少一个多色LED发射的光从所述按钮(112)发射,所述光管位于所述至少一个多色LED和所述按钮(112)之间。 用户界面(1526)还包括选择器,用于允许用户定义由至少一个多色LED发射的光的颜色。