Half-cycle summation V/Hz relay for generator and transformer
over-excitation protection
    31.
    发明授权
    Half-cycle summation V/Hz relay for generator and transformer over-excitation protection 失效
    用于发电机和变压器过励磁保护的半周期求和V / Hz继电器

    公开(公告)号:US5805395A

    公开(公告)日:1998-09-08

    申请号:US766715

    申请日:1996-12-13

    CPC classification number: H02H7/04 H02H7/06

    Abstract: A system for implementing accurate V/Hz value measurement and trip time determination for generator/transformer overexcitation protection independent of the conventional frequency tracking and phasor estimation based on Discrete Fourier Transformation (DFT) techniques. The half-cycle summation technique of the invention is a non-recursive digital technique which measures the per unit V/Hz value by summing the sampled data points in every half cycle of a sinusoidal input signal and dividing the sum with the ideal base sum value. When the input voltage signal is sampled at a reasonable frequency, the technique of the invention approximates the accurate per unit V/Hz value of the input voltage signal and thus obtains an accurate V/Hz characteristic directly without computing voltage and frequency separately.

    Abstract translation: 一种用于实现发电机/变压器过励磁保护的精确V / Hz值测量和跳闸时间确定的系统,与传统的基于离散傅里叶变换(DFT)技术的频率跟踪和相量估计无关。 本发明的半周期求和技术是一种非递归数字技术,其通过将正弦输入信号的每半个周期中的采样数据点相加并且将和除以理想基本和值来测量每单位V / Hz值 。 当以合理的频率对输入电压信号进行采样时,本发明的技术近似于输入电压信号的每单位V / Hz值的准确度,从而直接获得精确的V / Hz特性,而不分别计算电压和频率。

    Ozone generator
    32.
    发明授权

    公开(公告)号:US10059587B2

    公开(公告)日:2018-08-28

    申请号:US15177566

    申请日:2016-06-09

    Applicant: David Hart

    Inventor: David Hart

    CPC classification number: C01B13/11 C01B2201/12

    Abstract: An ozone generator is contained in a housing having a fan for inducing air flow through the housing and over an ozone generating plate where atmospheric oxygen is electrochemically converted to ozone, which flows out of the housing through a grid opening. The ozone generating plate is defined by a glass plate having electrically conductive grids on both sides thereof and each grid is electrically powered to create corona discharge from the conductor; as air and oxygen in the air flows over the plate it is converted to ozone.

    User interface for electronic backup
    33.
    发明授权
    User interface for electronic backup 有权
    用于电子备份的用户界面

    公开(公告)号:US09360995B2

    公开(公告)日:2016-06-07

    申请号:US13211273

    申请日:2011-08-16

    Abstract: Systems and methods are provided for storing and restoring digital data. A method includes receiving, a first user input requesting that a backup interface be displayed, displaying the backup interface, the backup interface including a display area for presenting at least a first visual representation of an earlier version of a current view and a visual representation of the current view, the earlier version including a first element, receiving, while the backup interface is displayed, a second user input requesting that the current view be modified according to the earlier version, at least with regard to the first element, animating the modification of the first element as moving from the visual representation of the earlier version to the visual representation of the current view, and modifying, in response to the second user input, the current view according to the earlier version, at least with regard to the first element.

    Abstract translation: 提供了用于存储和恢复数字数据的系统和方法。 一种方法包括:接收请求显示备份接口的第一用户输入,显示所述备份接口,所述备份接口包括用于呈现当前视图的较早版本的至少第一视觉表示的显示区域以及当前视图的视觉表示 所述当前视图,所述早期版本包括第一元素,在显示所述备份接口的同时接收根据所述早期版本修改所述当前视图的第二用户输入,至少关于所述第一元素,动画化所述修改 的第一元素从早期版本的视觉表示移动到当前视图的可视表示,并且响应于第二用户输入,至少关于第一元素的第一个元素修改当前视图 元件。

    Apparatus and Method for Sanitizing
    34.
    发明申请
    Apparatus and Method for Sanitizing 审中-公开
    消毒的设备和方法

    公开(公告)号:US20150328350A1

    公开(公告)日:2015-11-19

    申请号:US14706018

    申请日:2015-05-07

    Applicant: David Hart

    Inventor: David Hart

    Abstract: An apparatus and system that efficiently and effectively delivers a sanitizing fluid to ducts in the form of a fog or mist is described. A canister that contains a liquid sanitizing solution is attached to a compressor and includes a straw that has an internal passageway that extends into the liquid and a venturi tube above the level of the liquid that connects with the internal passageway in the straw. The headspace above the liquid in the canister is pressurized, causing fluid to flow upwardly in the straw when a trigger is depressed, drawing fluid upwardly in part by the venturi. As the liquid passes the venturi the pressurized air that is flowing into the venturi causes the fluid to form a fine mist. The mist, under pressure from the compressor, is routed into a flexible delivery tube that has been previously positioned in a duct system. The terminal end of the tube has an atomizing ball attached thereto and the atomizing ball has a series of orifices through which the misted, atomized fluid is delivered. As fogged sanitizing solution flows through the orifices it is deposited on the interior surfaces of the duct. The delivery tube and the attached atomizing ball are withdrawn from the duct as the sanitizing fog is emitted from the ball. The fan in the HVAC system is not activated so there is no deliver of the sanitizer through registers and into the living space. The apparatus and method may be used to apply other fluids to other surfaces.

    Abstract translation: 描述了以雾或雾形式有效且有效地将消毒液输送到管道的装置和系统。 包含液体消毒溶液的罐连接到压缩机,并且包括具有延伸到液体中的内部通道的吸管和在与吸管中的内部通道连接的液体水平面上方的文氏管。 在罐中的液体上方的顶部空间被加压,当触发器被压下时,流体在秸秆中向上流动,部分地由文丘里管向上抽吸流体。 当液体通过文氏管时,流入文丘里管的加压空气导致流体形成细雾。 来自压缩机的压力下的雾被引导到先前位于管道系统中的柔性输送管中。 管的末端具有附着在其上的雾化球,并且雾化球具有一系列孔口,雾化的雾化流体通过该孔口被输送。 当雾化的消毒溶液流过孔口时,其沉积在管道的内表面上。 当从球发出消毒雾时,输送管和附着的雾化球从管道中排出。 HVAC系统中的风扇没有被激活,所以没有通过寄存器和生活空间来提供消毒剂。 该装置和方法可用于将其它流体施加到其它表面。

    Navigation of electronic backups
    35.
    发明授权
    Navigation of electronic backups 有权
    导航电子备份

    公开(公告)号:US08495024B2

    公开(公告)日:2013-07-23

    申请号:US12964705

    申请日:2010-12-09

    CPC classification number: G06F9/451

    Abstract: Systems and methods for navigating within snapshots are provided. In one implementation a method is provided. The method includes receiving, while a current view is displayed in a user interface, a first user input requesting that a history view associated with the current view be displayed. The history view is displayed in response to the first user input, the history view including at least a first visual representation of an earlier version of the current view, the earlier version including a hierarchical structure wherein a first element of the earlier version includes a second element. There is received, while the history view is displayed, a second user input requesting that the current view be modified according to the second element. The method includes modifying, in response to the second user input, the current view according to the second element.

    Abstract translation: 提供了在快照内导航的系统和方法。 在一个实现中,提供了一种方法。 该方法包括在用户界面中显示当前视图的同时,显示请求与当前视图相关联的历史视图的第一用户输入。 响应于第一用户输入显示历史视图,历史视图包括当前视图的较早版本的至少第一视觉表示,早期版本包括分层结构,其中早期版本的第一元素包括第二个 元件。 在显示历史视图的同时,接收到根据第二元素修改当前视图的第二用户输入。 该方法包括响应于第二用户输入修改根据第二元素的当前视图。

    User interface for electronic backup
    36.
    发明授权
    User interface for electronic backup 有权
    用于电子备份的用户界面

    公开(公告)号:US08010900B2

    公开(公告)日:2011-08-30

    申请号:US11760708

    申请日:2007-06-08

    Abstract: Systems and methods are provided for storing and restoring digital data. A method includes receiving, a first user input requesting that a backup interface be displayed, displaying the backup interface, the backup interface including a display area for presenting at least a first visual representation of an earlier version of a current view and a visual representation of the current view, the earlier version including a first element, receiving, while the backup interface is displayed, a second user input requesting that the current view be modified according to the earlier version, at least with regard to the first element, animating the modification of the first element as moving from the visual representation of the earlier version to the visual representation of the current view, and modifying, in response to the second user input, the current view according to the earlier version, at least with regard to the first element.

    Abstract translation: 提供了用于存储和恢复数字数据的系统和方法。 一种方法包括:接收请求显示备份接口的第一用户输入,显示所述备份接口,所述备份接口包括用于呈现当前视图的较早版本的至少第一视觉表示的显示区域以及当前视图的视觉表示 所述当前视图,所述早期版本包括第一元素,在显示所述备份接口的同时接收根据所述早期版本修改所述当前视图的第二用户输入,至少关于所述第一元素,动画化所述修改 的第一元素从早期版本的视觉表示移动到当前视图的可视表示,并且响应于第二用户输入,至少关于第一元素的第一个元素修改当前视图 元件。

    Deletion in Electronic Backups
    37.
    发明申请
    Deletion in Electronic Backups 有权
    删除电子备份

    公开(公告)号:US20080307333A1

    公开(公告)日:2008-12-11

    申请号:US11760662

    申请日:2007-06-08

    CPC classification number: G06F11/1448 G06F11/1451 G06F2201/84

    Abstract: Systems and methods are provided for storing and restoring digital data. In some implementations, a method is provided. The method includes displaying a current view, initiating a history view, the history view including two or more visual representations of corresponding earlier versions of the current view, identifying a selection of an item in a visual representation, receiving an input to delete the selected item, and deleting each instance of the selected item in the history view. Other embodiments of this aspect include corresponding systems, apparatus, computer program products, and computer readable media.

    Abstract translation: 提供了用于存储和恢复数字数据的系统和方法。 在一些实现中,提供了一种方法。 该方法包括显示当前视图,启动历史视图,历史视图包括当前视图的对应早期版本的两个或多个可视表示,识别视觉表示中的项目的选择,接收用于删除所选项目的输入 ,并删除历史记录视图中所选项目的每个实例。 该方面的其他实施例包括对应的系统,装置,计算机程序产品和计算机可读介质。

    AMORPHOUS RAID
    38.
    发明申请

    公开(公告)号:US20070233949A1

    公开(公告)日:2007-10-04

    申请号:US11277819

    申请日:2006-03-29

    Applicant: David Hart

    Inventor: David Hart

    CPC classification number: G06F3/064 G06F3/0619 G06F3/0689 G06F2211/1004

    Abstract: A computer implemented method, data processing system, and computer program product for maximizing the amount of data protected in a Redundant Array of Independent Disks (RAID) storage system. When a request to configure a plurality of physical disk drives into a Redundant Array of Independent Disks is received, each of the plurality of physical disk drives is divided into blocks of data based on a least common denominator. The blocks of data are then arranged to form valid Redundant Array of Independent Disks parity sets, thereby maximizing the amount of data protected in the Redundant Array of Independent Disks.

    Abstract translation: 一种计算机实现的方法,数据处理系统和用于最大化独立磁盘冗余阵列(RAID)存储系统中保护的数据量的计算机程序产品。 当接收到将多个物理磁盘驱动器配置成独立磁盘的冗余阵列的请求时,多个物理磁盘驱动器中的每一个基于最小公分母被划分为数据块。 然后将数据块安排成形成有效的独立磁盘冗余阵列奇偶校验集,从而最大化独立磁盘冗余阵列中保护的数据量。

    Method and system for distributing multiband wireless communications signals
    39.
    发明授权
    Method and system for distributing multiband wireless communications signals 有权
    分配多频无线通信信号的方法和系统

    公开(公告)号:US06801767B1

    公开(公告)日:2004-10-05

    申请号:US09771320

    申请日:2001-01-26

    CPC classification number: H04B10/25755 H04B1/40

    Abstract: This invention provides a method and system for distributing multiband wireless communications signals. Downlink RF signals in a plurality of downlink frequency bands are received and then combined into a combined downlink RF signal at the main unit. The combined downlink RF signal is subsequently split into multiple downlink RF-parts, which are converted to multiple downlink optical signals and optically transmitted to the remote units. At each remote unit, a delivered downlink optical signal is first converted back to a downlink RF-part which is subsequently separated into a plurality of downlink RF-groups by frequency band. Each downlink RF-group is individually conditioned (e.g., filtered and amplified). The individual-conditioned downlink RF-groups are then combined and transmitted to a dedicated downlink antenna.

    Abstract translation: 本发明提供一种用于分配多频带无线通信信号的方法和系统。 接收多个下行链路频带中的下行链路RF信号,然后将其组合成主单元的组合下行链路RF信号。 组合的下行链路RF信号随后被分割成多个下行链路RF部分,其被转换为多个下行链路光信号并被光传输到远程单元。 在每个远程单元处,首先将传送的下行链路光信号转换回下行链路RF部分,随后通过频带分离成多个下行链路RF组。 每个下行链路RF组被单独调节(例如,滤波和放大)。 然后将各个条件的下行链路RF组合并发送到专用下行链路天线。

    Systems and methods for locating faults on a transmission line with multiple tapped loads
    40.
    发明授权
    Systems and methods for locating faults on a transmission line with multiple tapped loads 有权
    用于定位具有多个轻敲负载的传输线上的故障的系统和方法

    公开(公告)号:US06466031B1

    公开(公告)日:2002-10-15

    申请号:US09752892

    申请日:2000-12-29

    CPC classification number: G01R31/085

    Abstract: A fault is located in a transmission line with a sending end, a receiving end, and a plurality of tapped nodes, and multiple tapped loads connected to the transmission line at tap nodes. The sending end and the receiving end each include a measuring device. The fault location is determined by obtaining measured circuit parameters including measured pre-fault and faulted current and voltage values at the sending end and at the receiving end of the transmission line. An equivalent tap node location is calculated using measured pre-fault and faulted current and voltage values at the sending end and at the receiving end of the transmission line. The equivalent tap node divides the transmission line into a sending side and a receiving side. The phase angle difference due to unsynchronized measurement using the measured pre-fault current and the measured pre-fault voltage values may be calculated. The equivalent load impedance of the tapped loads is calculated. A first fault location is calculated assuming that the fault is located on the sending side of the equivalent tap node. A second fault location is calculated assuming that the fault is located on the receiving side of the equivalent tap node. The fault location is selected from one of the first fault location and the second fault location, by selecting the fault location having a value within a predetermined range representing a full distance between two nodes.

    Abstract translation: 故障位于具有发送端,接收端和多个抽头节点的传输线中,并且在分接节点处连接到传输线的多个抽头负载。 发送端和接收端各自包括测量装置。 通过获得测量的电路参数来确定故障位置,该电路参数包括传输线的发送端和接收端的测量故障前和故障电流和电压值。 使用发送端和传输线接收端的测量故障前和故障电流和电压值计算等效抽头节点位置。 等效抽头节点将传输线划分为发送侧和接收端。 可以计算使用测量的故障前电流和测量的故障前电压值的不同步测量的相位角差。 计算抽头负载的等效负载阻抗。 假设故障位于等效抽头节点的发送侧,则计算第一个故障位置。 假定故障位于等效抽头节点的接收侧,则计算第二个故障位置。 通过选择具有表示两个节点之间的全距离的预定范围内的值的故障位置,从第一故障位置和第二故障位置中选择故障位置。

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