Circuit and methodology for supplying pulsed current to a load, such as a light emitting diode
    131.
    发明授权
    Circuit and methodology for supplying pulsed current to a load, such as a light emitting diode 有权
    向负载(例如发光二极管)提供脉冲电流的电路和方法

    公开(公告)号:US07746300B2

    公开(公告)日:2010-06-29

    申请号:US11418131

    申请日:2006-05-05

    CPC classification number: H05B33/0818

    Abstract: A circuit for controlling pulsed current to a load, one application of which is in LED dimmer circuitry, comprises first and second reference nodes for receiving a supply voltage, an input node for receiving a timing signal such as a PWM signal, and a controlled switch coupled between the first and second reference voltage nodes for supplying current to the load. Pull-up circuitry may be coupled between a control electrode of the controlled switch and first reference voltage node, and a pull-down switch coupled between the control electrode and second reference voltage node. A control circuit coupled between the input node and control electrode of the controlled switch is configured to control the controlled switch in response to the timing signal. The circuit may further include a reference voltage source configured for producing a voltage of magnitude independent of supply voltage magnitude. The control circuit is coupled to the reference voltage source and operative to control the controlled switch in response to the timing signal and reference voltage.

    Abstract translation: 用于控制到负载的脉冲电流的电路,其一个应用在LED调光器电路中,包括用于接收电源电压的第一和第二参考节点,用于接收诸如PWM信号的定时信号的输入节点和受控开关 耦合在用于向负载提供电流的第一和第二参考电压节点之间。 上拉电路可以耦合在受控开关的控制电极和第一参考电压节点之间,以及耦合在控制电极和第二参考电压节点之间的下拉开关。 耦合在受控开关的输入节点和控制电极之间的控制电路被配置为响应于定时信号来控制受控开关。 电路还可以包括被配置为产生与电源电压幅度无关的幅度电压的参考电压源。 控制电路耦合到参考电压源并且可操作以响应于定时信号和参考电压来控制受控开关。

    Balancing collections of vertices in a network
    132.
    发明授权
    Balancing collections of vertices in a network 有权
    平衡网络中顶点的集合

    公开(公告)号:US07742906B2

    公开(公告)日:2010-06-22

    申请号:US11714509

    申请日:2007-03-06

    CPC classification number: G06F17/11 H04L45/48

    Abstract: A representation of a network having vertices connected by arcs is provided. Different collections of vertices in the network are iteratively selected. Balancing moves are performed in corresponding collections of the network, where the collections are represented by corresponding graphs according to a predefined structure.

    Abstract translation: 提供了具有通过弧连接的顶点的网络的表示。 迭代地选择网络中不同的顶点集合。 平衡移动在网络的相应集合中执行,其中集合由根据预定义结构的对应图表示。

    Methods And Apparatus Using Range Queries For Multi-dimensional Data In A Database
    133.
    发明申请
    Methods And Apparatus Using Range Queries For Multi-dimensional Data In A Database 有权
    使用数据库中多维数据的范围查询的方法和设备

    公开(公告)号:US20100082654A1

    公开(公告)日:2010-04-01

    申请号:US12241305

    申请日:2008-09-30

    CPC classification number: G06F17/30424 G06F17/30592

    Abstract: Embodiments include methods, apparatus, and systems for using range queries in multidimensional data in a database. One embodiment is a method that defines a query box from a search for multidimensional data in a database. The method examines an intersection between a Z-interval and the query box by decomposing the Z-interval into hyper-boxes that are also Z-intervals in Z space. Items in the query box that match the search are discovered.

    Abstract translation: 实施例包括在数据库中的多维数据中使用范围查询的方法,装置和系统。 一个实施例是一种从数据库中的多维数据搜索定义查询框的方法。 该方法通过将Z间隔分解为Z空间中也是Z间隔的超盒子来检查Z间隔和查询框之间的交集。 发现与查询匹配的查询框中的项目。

    USB CONNECTOR AND USB DEVICE
    134.
    发明申请
    USB CONNECTOR AND USB DEVICE 有权
    USB连接器和USB设备

    公开(公告)号:US20090215284A1

    公开(公告)日:2009-08-27

    申请号:US12391612

    申请日:2009-02-24

    Abstract: A USB connector for connecting with a USB female comprises metal legs, a connecting line, a substrate and a rotating shaft assembly. One end of the metal legs connects with one end of the connecting line. The metal legs are formed on a surface of the substrate. The connecting line is fixed to the surface of the substrate. The rotating shaft assembly is fixed to the surface of the substrate. The present invention also provides a USB device. According to the USB connector and the USB device of the present invention, the metal legs are formed on the surface of the substrate so as to ensure the connecting strength of the metal legs. Since the size of the USB connector depends mainly on the substrate and as long as the thickness meets a requirement of inserting the USB connector into the USB female, the thickness of the USB connector and further the thickness of the USB device are reduced without compromising the function of the USB connector. Compared with the conventional USB products, the thickness of the USB device according to the present invention is greatly reduced so that the USB device takes less space and easy to carry. It not only meets the people's requirement for exquisite and compact electronic products, but also improves the practicality and aesthetics of the USB device.

    Abstract translation: 用于与USB母头连接的USB连接器包括金属支腿,连接线,基板和旋转轴组件。 金属腿的一端与连接线的一端连接。 金属腿形成在基板的表面上。 连接线固定到基板的表面。 旋转轴组件固定到基板的表面。 本发明还提供一种USB装置。 根据本发明的USB连接器和USB装置,金属支柱形成在基板的表面上,以确保金属支柱的连接强度。 由于USB连接器的尺寸主要取决于基板,只要厚度满足将USB连接器插入USB母头的要求,USB连接器的厚度以及USB设备的厚度进一步减小,而不会影响 USB连接器的功能。 与传统的USB产品相比,根据本发明的USB设备的厚度大大降低,使得USB设备占用较少的空间并且易于携带。 它不仅满足了人们对精巧紧凑的电子产品的要求,而且提高了USB设备的实用性和美观性。

    Integrated Battery Voltage Sensor with High Voltage Isolation, a Battery Voltage Sensing System and Methods Therefor
    135.
    发明申请
    Integrated Battery Voltage Sensor with High Voltage Isolation, a Battery Voltage Sensing System and Methods Therefor 有权
    具有高压隔离的集成电池电压传感器,电池电压检测系统及其方法

    公开(公告)号:US20080309317A1

    公开(公告)日:2008-12-18

    申请号:US11763522

    申请日:2007-06-15

    CPC classification number: H01M10/48 G01R19/0084 H01M10/425

    Abstract: An integrated circuit battery sensor and system thereof are provided. The battery sensor includes a voltage sensor configured to sample a voyage of a battery and a buffer in electrical communication with the voltage sensor and configured for scaling the sampled battery voltage and outputting a voltage signal proportional to the sampled battery voltage; wherein the voltage sensor is further configured for isolating the buffer from the battery. The voltage sensor includes a first capacitor coupled to a positive potential terminal of the battery and a second capacitor coupled to a negative potential terminal of the battery. The battery sensor includes a first die including a first and second input terminal configured for coupling to the positive and negative potential terminals of the battery; and a second die including the voltage sensor, wherein the first and second die are electrically isolated from each other.

    Abstract translation: 提供集成电路电池传感器及其系统。 电池传感器包括电压传感器,其被配置为对电池的航行进行采样,并且缓冲器与电压传感器电连通并且被配置为缩放所采样的电池电压并输出与采样的电池电压成比例的电压信号; 其中所述电压传感器还被配置为将所述缓冲器与所述电池隔离。 电压传感器包括耦合到电池的正电位端子的第一电容器和耦合到电池的负电位端子的第二电容器。 电池传感器包括:第一管芯,其包括被配置为耦合到电池的正极和负极端子的第一和第二输入端子; 以及包括所述电压传感器的第二管芯,其中所述第一管芯和所述第二管芯彼此电隔离。

    Desensitizing database information
    136.
    发明申请
    Desensitizing database information 有权
    脱敏数据库信息

    公开(公告)号:US20080270370A1

    公开(公告)日:2008-10-30

    申请号:US11799212

    申请日:2007-04-30

    CPC classification number: G06F21/6227 G06F17/30289 G06F21/6245

    Abstract: In a method of preserving characteristics of desensitized database information for use in database management system benchmarking, at least one column of sensitive data from a database is accessed. The at least one column of sensitive data is sorted into a sorted data representation. Desensitized data is generated by sequentially mapping ascending different values of the sorted data representation to ascending desensitized values generated according to a strictly monotone increasing randomly generated function. The mapping results in a plurality of mapped desensitized values which are associated with the sorted data representation. The mapped desensitized values are unsorted into a desensitized database according to sorting information related to the sorted data representation. As a result of the unsorting, cardinalities of the at least one column of sensitive data are maintained within the desensitized database.

    Abstract translation: 在保存用于数据库管理系统基准测试的脱敏数据库信息的特征的方法中,访问至少一列来自数据库的敏感数据。 敏感数据的至少一列被排序成排序的数据表示。 通过将排序数据表示的上升不同值顺序地映射到根据严格单调增加的随机生成函数生成的上升脱敏值来产生脱敏数据。 映射产生与排序的数据表示相关联的多个映射的脱敏值。 映射的脱敏值根据与排序的数据表示相关的排序信息被未排序到脱敏数据库中。 由于不合格的结果,至少一列敏感数据的基数保持在脱敏数据库中。

    Current Transfer Ratio Temperature Coefficient Compensation Method And Apparatus
    138.
    发明申请
    Current Transfer Ratio Temperature Coefficient Compensation Method And Apparatus 有权
    电流传递比温度系数补偿方法和装置

    公开(公告)号:US20080087851A1

    公开(公告)日:2008-04-17

    申请号:US11950477

    申请日:2007-12-05

    Applicant: Kah Lee Bin Zhang

    Inventor: Kah Lee Bin Zhang

    CPC classification number: H04B10/802

    Abstract: An optocoupler system includes a buffer, isolation, and a detector. The system includes a current transfer ratio (CTR) with a temperature coefficient. The buffer includes a light source that generates light that passes through the isolation. A detector receives light that passes through the isolation and generates an output signal based on the received light. A current transfer ratio (CTR) temperature coefficient compensation mechanism is provided that generates a base signal with a temperature coefficient that compensates the temperature coefficient of the CTR.

    Abstract translation: 光耦系统包括缓冲器,隔离和检测器。 该系统包括具有温度系数的电流传输比(CTR)。 缓冲器包括产生穿过隔离物的光的光源。 检测器接收通过隔离的光,并基于接收到的光产生输出信号。 提供了电流传递比(CTR)温度系数补偿机制,其产生具有补偿CTR的温度系数的温度系数的基本信号。

    Systems, devices, and methods for arc fault management
    139.
    发明申请
    Systems, devices, and methods for arc fault management 审中-公开
    用于电弧故障管理的系统,设备和方法

    公开(公告)号:US20070208520A1

    公开(公告)日:2007-09-06

    申请号:US11365714

    申请日:2006-03-01

    CPC classification number: H02H1/0015 H02H3/335

    Abstract: Certain exemplary embodiments can comprise a fault detection system, which can comprise a microprocessor. The microprocessor can be configured to automatically generate an output signal to an output pin responsive to an input signal indicative of an arc fault. The output signal can be configured to trip a circuit breaker.

    Abstract translation: 某些示例性实施例可以包括可以包括微处理器的故障检测系统。 微处理器可以被配置为响应于指示电弧故障的输入信号自动地向输出引脚产生输出信号。 输出信号可以配置为跳闸断路器。

    Amplifier circuit, and system incorporating same

    公开(公告)号:US07265632B2

    公开(公告)日:2007-09-04

    申请号:US11282455

    申请日:2005-11-17

    CPC classification number: H03F1/486 H03F1/0205 H03F1/301 H03F3/087 H03F3/345

    Abstract: In one embodiment, a current source circuit having a reference resistor produces first, second and third bias currents that vary with manufacturing variances of the current compensation resistor. An input amplification stage includes a transconductance stage biased by the first bias current, a first transimpedance amplifier (TIA) biased by the second bias current, and a first feedback resistor coupled between the first TIA's input and output. The input of the first TIA is coupled to an output of the transconductance stage. An output amplification stage is biased by the third bias current and has an input coupled to an output of the first TIA. A second feedback resistor is coupled between the output of the output amplification stage and the input of the transconductance stage. The reference resistor and first and second feedback resistors are formed using a common manufacturing process.

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