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19 条记录 (耗时 0.022 秒)

    Dual-element microstrip patch antenna for mitigating radio frequency interference
    1.
    发明授权
    Dual-element microstrip patch antenna for mitigating radio frequency interference 失效
    双元件微带贴片天线，用于减轻射频干扰

    公开(公告)号：US06930639B2

    公开(公告)日：2005-08-16

    申请号：US10390331

    申请日：2003-03-14

    申请人： Frank N. Bauregger ,  Per Enge ,  Todd Walter ,  Dennis Akos

    发明人： Frank N. Bauregger ,  Per Enge ,  Todd Walter ,  Dennis Akos

    IPC分类号： H01Q1/38 ,  H01Q3/24 ,  H01Q9/04 ,  H01Q21/28 ,  H01Q1/50 ,  H01Q21/00

    CPC分类号： H01Q9/0442 ,  H01Q1/38 ,  H01Q3/247 ,  H01Q9/0414 ,  H01Q9/0428 ,  H01Q21/28

    摘要： Method and apparatus for reducing radio frequency interference (RFI) using a dual-element patch antenna [10]. The antenna possesses two antenna elements [13, 14] having distinct radiation patterns. Either element may be independently selected using a DC bias voltage. Diodes [20] connected to the elements serve to disable one element when the other is selected. In one selected mode, a nominal radiation pattern provides a broad, hemispherical shaped sensitivity that is designed for acquiring and tracking all navigation satellites above the horizon. This nominal radiation pattern, however, is susceptible to interference that is present near or below the horizon. The second selectable radiation pattern of the dual-element antenna has comparatively higher gain toward zenith, and lower gain at and below the horizon to mitigate interference. This combination of features is packaged in a single antenna unit that can be a direct replacement for existing antennas. The dual-element antenna unit has a low vertical profile and is suitable for mounting on high-speed moving vehicles.

    摘要翻译： 使用双元件贴片天线降低射频干扰（RFI）的方法和装置[10]。 天线具有两个具有不同辐射图案的天线元件[13,14]。 可以使用DC偏置电压独立地选择任一元件。 连接到元件的二极管[20]用于在选择另一个元件时禁用一个元件。 在一种选择的模式中，标称辐射图形提供广泛的半球形灵敏度，其设计用于获取和跟踪地平线以上的所有导航卫星。 然而，这种标称辐射模式易于存在于地平线附近或之下的干扰。 双元件天线的第二种可选择的辐射图形具有相对较高的天顶增益，并且在水平线上和下方的增益较低以减轻干涉。 这种特征的组合被封装在单个天线单元中，其可以是现有天线的直接替代。 双元件天线单元具有低垂直轮廓，适合安装在高速移动车辆上。

    SYSTEM. METHOD, AND COMPUTER-READABLE MEDIUM FOR CLASSIFYING PROBLEM QUERIES TO REDUCE EXCEPTION PROCESSING
    2.
    发明申请
    SYSTEM. METHOD, AND COMPUTER-READABLE MEDIUM FOR CLASSIFYING PROBLEM QUERIES TO REDUCE EXCEPTION PROCESSING 审中-公开
    系统。 方法和用于分类问题的计算机可读介质以减少异常处理

    公开(公告)号：US20140089311A1

    公开(公告)日：2014-03-27

    申请号：US13627203

    申请日：2012-09-26

    申请人： Anita Richards ,  Douglas Brown ,  Bruce Britton ,  Todd Walter

    发明人： Anita Richards ,  Douglas Brown ,  Bruce Britton ,  Todd Walter

    IPC分类号： G06F17/30

    CPC分类号： G06F11/0754 ,  G06F11/0727 ,  G06F16/217 ,  G06F16/2453 ,  G06F16/24549 ,  G06F16/24557

    摘要： A system, method, and computer-readable medium that facilitate classification of database requests as problematic based on estimated processing characteristics of the request are provided. Estimated processing characteristics may include estimated skew including central processing unit skew and input/output operation skew, central processing unit duration per input/output operation, and estimated memory usage. The estimated processing characteristics are made on a request step basis. The request is classified as problematic responsive to determining one or more of the estimated characteristics of a request step exceed a corresponding threshold. In this manner, mechanisms for predicting bad query behavior are provided. Workload management of those requests may then be more successfully provided through workload throttles, filters, or even a more confident exception detection that correlates with the estimated bad behavior.

    摘要翻译： 提供了一种系统，方法和计算机可读介质，其基于所请求的估计处理特性，有助于将数据库请求分类为有问题的。 估计的处理特性可以包括估计的偏差，包括中央处理单元偏移和输入/输出操作偏移，每个输入/输出操作的中央处理单元持续时间和估计的存储器使用。 估计的处理特性是在请求步骤的基础上进行的。 响应于确定请求步骤的估计特性中的一个或多个超过相应的阈值，将该请求分类为有问题的。 以这种方式，提供了用于预测不良查询行为的机制。 那么这些请求的工作负载管理可以通过工作负载节流，过滤器或甚至与估计的不良行为相关的更自信的异常检测来更成功地提供。

    Virtual data maintenance
    3.
    发明申请
    Virtual data maintenance 有权
    虚拟数据维护

    公开(公告)号：US20090132602A1

    公开(公告)日：2009-05-21

    申请号：US11985909

    申请日：2007-11-19

    申请人： Douglas Brown ,  John Mark Morris ,  Todd Walter

    发明人： Douglas Brown ,  John Mark Morris ,  Todd Walter

    IPC分类号： G06F17/30

    CPC分类号： G06F17/30306

    摘要： A computer-implemented apparatus, method, and article of manufacture manage a plurality of database systems and perform data maintenance tasks in a data warehouse system. A domain includes a plurality of database systems. A virtual regulator manages the domain, detects a request to invoke a data maintenance task on a first system in the domain, routes the data maintenance task, for execution, to a second system in the domain, and applies results from the data maintenance task (executed by the second system) to the first system.

    摘要翻译： 计算机实现的装置，方法和制品在数据仓库系统中管理多个数据库系统并执行数据维护任务。 域包括多个数据库系统。 虚拟调节器管理域，检测在域中的第一系统上调用数据维护任务的请求，将用于执行的数据维护任务路由到域中的第二系统，并且从数据维护任务（ 由第二系统执行）到第一系统。

    Virtual data maintenance
    5.
    发明授权
    Virtual data maintenance 有权

    公开(公告)号：US08392461B2

    公开(公告)日：2013-03-05

    申请号：US11985909

    申请日：2007-11-19

    申请人： Douglas Brown ,  John Mark Morris ,  Todd Walter

    发明人： Douglas Brown ,  John Mark Morris ,  Todd Walter

    IPC分类号： G06F17/30 ,  G06F17/00

    CPC分类号： G06F17/30306

    摘要： A computer-implemented apparatus, method, and article of manufacture manage a plurality of database systems and perform data maintenance tasks in a data warehouse system. A domain includes a plurality of database systems. A virtual regulator manages the domain, detects a request to invoke a data maintenance task on a first system in the domain, routes the data maintenance task, for execution, to a second system in the domain, and applies results from the data maintenance task (executed by the second system) to the first system.

    Database system having a service level goal responsive regulator
    6.
    发明授权
    Database system having a service level goal responsive regulator 有权
    数据库系统具有服务级目标响应调节器

    公开(公告)号：US08151269B1

    公开(公告)日：2012-04-03

    申请号：US12317836

    申请日：2008-12-30

    申请人： Douglas Brown ,  Stephen Brobst ,  Anita Richards ,  Todd Walter

    发明人： Douglas Brown ,  Stephen Brobst ,  Anita Richards ,  Todd Walter

    IPC分类号： G06F9/46 ,  G06F7/00

    CPC分类号： G06F17/30306

    摘要： A database system includes a regulator subsystem that is configured to attempt to satisfy service level goals of multiple workloads that are executing in the database system. The regulator subsystem is configured to monitor execution of a particular request belonging to a particular workload and to assign, at plural event intervals, corresponding priority levels to the particular request based on the monitored execution.

    摘要翻译： 数据库系统包括调整器子系统，其被配置为尝试满足在数据库系统中执行的多个工作负载的服务级目标。 调节器子系统被配置为监视属于特定工作负载的特定请求的执行，并且基于所监视的执行，以多个事件间隔向特定请求分配相应的优先级。

    Control system for photovoltaic power plant
    10.
    发明授权
    Control system for photovoltaic power plant 有权
    光伏电站控制系统

    公开(公告)号：US08452461B2

    公开(公告)日：2013-05-28

    申请号：US13104471

    申请日：2011-05-10

    申请人： Harry Sawyer ,  Simon Chee ,  Todd Walter ,  Todd Kline ,  John Bellacicco

    发明人： Harry Sawyer ,  Simon Chee ,  Todd Walter ,  Todd Kline ,  John Bellacicco

    IPC分类号： G06F1/26 ,  H02J3/14

    CPC分类号： G06F1/26 ,  H01L31/02021 ,  H02J3/383 ,  H02J13/0006 ,  Y02E10/563 ,  Y02E40/72 ,  Y04S10/123 ,  Y10T307/406

    摘要： A control system for a photovoltaic (“PV”) power plant that includes a plant-level control system for implementing plant-level control functions at power generation sites of the plant, a supervisory system for supervisory control and data acquisition of the plant, and a communications network connecting the plant-level control system, the supervisory system, and plant devices is described. Methods of controlling a PV plant using the plant-level control system and the supervisory system and methods of regulating power characteristics in power generation sites are also described.

    摘要翻译： 一种用于光伏（“PV”）发电厂的控制系统，包括用于在工厂的发电站点实施工厂级控制功能的工厂级控制系统，用于工厂的监控和数据采集的监控系统，以及 描述了连接工厂级控制系统，监控系统和工厂设备的通信网络。 还描述了使用工厂级控制系统和监控系统控制光伏电站的方法和调节发电站点功率特性的方法。