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    • 31. 发明授权
    • Stand alone water purifier
    • 独立净水器
    • US06500334B1
    • 2002-12-31
    • US09628637
    • 2000-07-31
    • Joseph A. KingJeffrey D. Johnson
    • Joseph A. KingJeffrey D. Johnson
    • C02F100
    • B01F1/0027B01F5/0413B01F5/0496C02F1/50C02F1/688C02F2103/003C02F2103/42C02F2303/04Y10T137/4891
    • A water purification device, method and system with the water purification device having a container for holding a water purification material therein with the water purification device including a shroud extending in a direction generally normal to a flow of debris laden water with the shroud inhibiting direct flow of debris into a water inlet in the water purification device by directing water and debris over the shroud and around the water purification device while a portion of the water can be directed laterally into the water purification material within the water purification device to thereby purify the water that flows over the water purification materials with the water purification device including multiple spaced and positioned water inlets so that the likelihood of the water inlet being completely obstructed is remote.
    • 一种水净化装置,方法和系统,其中所述净水装置具有用于在其中保持水净化材料的容器,所述水净化装置包括沿着大体垂直于载满碎屑的水流的方向延伸的护罩,所述护罩禁止直流 通过将水和碎屑引导到护罩上和水净化装置周围,将一部分水横向地引导到水净化装置内的净水材料中,从而净化水分,从而将水分和碎屑引导到水净化装置的入水口中 水净化装置通过多个间隔定位的进水口在水净化装置上流动,使得进水口完全阻塞的可能性是远距离的。
    • 32. 发明授权
    • R/2R' ladder switch circuit and method for digital-to-analog converter
    • R / 2R'梯形开关电路和数模转换器的方法
    • US06150971A
    • 2000-11-21
    • US337796
    • 1999-06-22
    • Jimmy R. NaylorTimothy V. KalthoffMark A. ShillJeffrey D. Johnson
    • Jimmy R. NaylorTimothy V. KalthoffMark A. ShillJeffrey D. Johnson
    • H03M1/78H03K17/00H03K17/693H03M1/08
    • H03M1/089H03M1/785
    • A digital-to-analog converter includes a resistive divider network including a plurality of series resistors of resistance R and a plurality of shunt resistors of resistance 2R' and a circuit for switching a shunt resistor of the resistive divider network in the digital-to-analog converter to either of first and second reference voltages. The switching circuit includes a first switch MOSFET coupling the low reference voltage to the shunt resistor, and a second switch MOSFET coupling the shunt resistor to the high reference voltage. First and second switch control circuits adjust the on resistances of the first and second switch MOSFETs to be proportional to the resistances of first and second reference resistors, which have the same temperature coefficient as the resistors of which the divider network is composed. The on resistance of each of the first and second switch MOSFETs is equal to R.sub.ONi, and the resistance 2R' is equal to 2R-R.sub.ONi. The on resistances do not need to be binarily scaled.
    • 数模转换器包括电阻分压网络,其包括电阻R的多个串联电阻器和多个电阻2R'的分流电阻器,以及用于在数模转换器中切换电阻分压器网络的分流电阻器的电路, 模拟转换器到第一和第二参考电压中的任一个。 开关电路包括将低参考电压耦合到分流电阻器的第一开关MOSFET和将分流电阻器耦合到高参考电压的第二开关MOSFET。 第一和第二开关控制电路将第一和第二开关MOSFET的导通电阻调节成与第一和第二参考电阻的电阻成比例,第一和第二参考电阻具有与构成分压网络的电阻相同的温度系数。 第一和第二开关MOSFET的导通电阻等于RONi,电阻2R'等于2R-RONi。 导通电阻不需要二进制缩放。
    • 39. 发明授权
    • Large scale simulation architecture for distributed networking waveforms
    • 分布式网络波形的大规模仿真架构
    • US08612197B1
    • 2013-12-17
    • US12960876
    • 2010-12-06
    • Jeffrey D. JohnsonAlan D. AmisGeorge A. Deprez
    • Jeffrey D. JohnsonAlan D. AmisGeorge A. Deprez
    • G06F17/50G06G7/62
    • G06F17/5022G06F17/5036H04L41/145H04L41/20H04L43/50
    • A system for providing a network simulation is disclosed. The system may comprise a plurality of simulation platforms, each particular simulation platform of the plurality of simulation platforms representing a simulated entity in the network simulation, each particular simulation platform may include: a simulated node configured for executing a set of networking software for representing the simulated entity; a communication handler configured for handling communications between the particular simulation platform and another simulation platform of the plurality of simulation platforms; and a proxy node configured for emulating a data transmission from an outside node to the simulated node, the outside node being a simulated node of the other simulation platform. The system may further comprise a simulation control module for controlling at least one of: a start and an end of the network simulation, mobility of each of the plurality of simulation platforms, and traffic flows in the network simulation.
    • 公开了一种用于提供网络仿真的系统。 该系统可以包括多个仿真平台,多个仿真平台中的每个特定仿真平台表示网络仿真中的模拟实体,每个特定仿真平台可以包括:被配置为执行一组网络软件的模拟节点,用于表示 模拟实体; 通信处理器,被配置为处理所述特定仿真平台与所述多个仿真平台中的另一个仿真平台之间的通信; 以及配置用于模拟从外部节点到所述模拟节点的数据传输的代理节点,所述外部节点是所述另一仿真平台的模拟节点。 该系统还可以包括模拟控制模块,用于控制网络模拟的开始和结束,多个仿真平台中的每一个的移动性以及网络仿真中的业务流中的至少一个。