Complementary code keying demodulation system
    21.
    发明授权
    Complementary code keying demodulation system 失效
    互补码密钥解调系统

    公开(公告)号:US07079592B2

    公开(公告)日:2006-07-18

    申请号:US10170451

    申请日:2002-06-14

    CPC classification number: H04L23/02

    Abstract: The present invention relates to both of a bi-stage correlation calculation demodulation system, and a fast walsh block demodulation device at a receiver, wherein the bi-stage correlation calculation demodulation system has a characteristic of bi-stage correlation calculation in which the subsequent second-stage correlation calculations are dependent on the first-stage correlation calculation results by utilizing an incomplete orthogonal property within CCK codewords to arrange the CCK codewords operated in the first-stage correlation calculations and second-stage correlation calculations properly and respectively. The fast walsh block demodulation device comprises: a plurality of adders (operators) constructed to be a first-level correlation calculation circuit and a second-level correlation calculation circuit, and a plurality of process modules constructed to be a third-level correlation calculation circuit, the process modules having the functions of picking one maximum value from four values and performing third-level correlation calculation of conventional basic fast walsh block demodulation device.

    Abstract translation: 本发明涉及一种在接收机处的双级相关计算解调系统和快速沃尔什块解调装置,其中双级相关计算解调系统具有双级相关计算的特征,其中随后的第二 阶段相关计算依赖于第一阶段相关计算结果,通过利用CCK码字中的不完全正交特性来分别排列在第一阶段相关计算中运行的CCK码字和二阶相关计算。 快速沃尔什块解调装置包括:构成为第一级相关计算电路和第二级相关计算电路的多个加法器(运算符),以及构成为第三级相关计算电路的多个处理模块 该处理模块具有从四个值中选出一个最大值并执行常规基本快速沃尔什块解调装置的第三级相关计算的功能。

    FOUR-PHASE DUAL PUMPING CIRCUIT
    22.
    发明申请
    FOUR-PHASE DUAL PUMPING CIRCUIT 失效
    四相双泵电路

    公开(公告)号:US20050151580A1

    公开(公告)日:2005-07-14

    申请号:US10707786

    申请日:2004-01-12

    CPC classification number: H02M3/073 H02M2003/075 H02M2003/077

    Abstract: A four-phase dual pumping circuit has a number of stages according to the required output voltage based on an input voltage. Each stage has a first pumping unit and a second pumping unit that are mirror and identical to each other and electrically coupled to each other. The dual pumping circuit is controlled by four-phase clocks which are made from one pair of out of phase clocks. The transistors of the dual pumping circuit have special substrate connection to minimize body effects. The four-phase dual pumping circuit uses NMOSFETS for negative pumping and PMOSFETS for positive pumping.

    Abstract translation: 四相双泵浦电路根据输入电压根据所需的输出电压具有多个级。 每个级具有彼此镜像并相同并且彼此电耦合的第一泵送单元和第二泵送单元。 双泵电路由四相时钟控制,这四个时钟由一对异相时钟产生。 双泵浦电路的晶体管具有特殊的基板连接以最小化身体效应。 四相双泵浦电路使用NMOSFETS进行负泵浦和PMOSFETS进行正泵浦。

    Charge pump circuit without body effects

    公开(公告)号:US06642773B2

    公开(公告)日:2003-11-04

    申请号:US10064714

    申请日:2002-08-09

    CPC classification number: H02M3/073 H02M2003/075 H02M2003/078

    Abstract: A charge pump circuit has input and output nodes, a first transistor, a second transistor, a third transistor, a first capacitor, and a second capacitor. A drain of the first transistor and a drain of the second transistor are connected to the input node. A source of the second transistor and a drain of the third transistor are connected to the output node. The first capacitor is connected to a gate of the second transistor. The third transistor is connected to a substrate and a source of the second transistor. When the first transistor is turned on, a voltage at the input node will charge the first capacitor. When the second transistor is turned on, the third transistor is turned on simultaneously so that the substrate and the source of the second transistor will reach the same voltage level. Then, voltage at the input node will charge the second capacitor.

    Printed circuit board
    25.
    发明授权
    Printed circuit board 有权
    印刷电路板

    公开(公告)号:US09445492B2

    公开(公告)日:2016-09-13

    申请号:US13351108

    申请日:2012-01-16

    Abstract: A printed circuit board is disclosed. The printed circuit board comprises a substrate having a top surface and a bottom surface. A ground plane is on the bottom surface. A signal trace is on the top surface along a first direction. At least two isolated power planes are on the top surface adjacent to opposite sides of the signal trace, respectively. A conductive connection along a second direction couples to the two power planes, across the signal trace without electrically connecting to the signal trace, wherein the signal trace doesn't pass over any split of the ground plane.

    Abstract translation: 公开了印刷电路板。 印刷电路板包括具有顶表面和底表面的基底。 地平面位于底面。 信号迹线沿着第一方向在顶表面上。 至少两个隔离的电源平面分别位于与信号迹线的相对侧相邻的顶表面上。 沿着第二方向的导电连接跨过信号迹线耦合到两个电源层,而不与电信号迹线电连接,其中信号迹线不经过接地平面的任何分裂。

    Dual mode hydraulic circuit control and method
    27.
    发明授权
    Dual mode hydraulic circuit control and method 有权
    双模液压回路控制及方法

    公开(公告)号:US07874151B2

    公开(公告)日:2011-01-25

    申请号:US12049969

    申请日:2008-03-17

    Abstract: A dual mode control system for a hydraulic circuit (200) having a variable displacement pump (216) includes at least two actuators, each controlled by a respective valve. The valves are connected in series with a pressure sensor (250) measuring a pressure of fluid between the first valve (224) and the second valve (234) and relaying a signal to the electronic controller (202). The electronic controller (202) operates in a first mode, varying the displacement of the pump (216) based on a command signal operating at least one of the valves, and operates in a standby mode, varying the displacement of the pump (216) based on the signal from the sensor, when both valves are in their respective neutral positions.

    Abstract translation: 一种用于具有可变排量泵(216)的液压回路(200)的双模式控制系统,包括至少两个致动器,每个致动器由相应的阀控制。 这些阀与测量第一阀(224)和第二阀(234)之间的流体压力的压力传感器(250)串联连接并将信号中继到电子控制器(202)。 电子控制器(202)以第一模式操作,基于操作至少一个阀的命令信号改变泵216的位移,并且在备用模式下操作,改变泵216的位移, 基于来自传感器的信号,当两个阀处于它们各自的中立位置时。

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