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    • 12. 发明授权
    • Power converters
    • 电源转换器
    • US08513911B2
    • 2013-08-20
    • US13214636
    • 2011-08-22
    • Rodney JonesChristopher Newton
    • Rodney JonesChristopher Newton
    • H02P27/04
    • B63H21/17B63H23/24H02M5/4585H02P23/06
    • A power converter that interfaces a motor requiring variable voltage/frequency to a supply network providing a nominally fixed voltage/frequency includes a first rectifier/inverter connected to a stator and a second rectifier/inverter. Both rectifier/inverters are interconnected by a dc link and include switching devices. A filter is connected between the second rectifier/inverter and the network. A first controller for the first rectifier/inverter uses a dc link voltage demand signal indicative of a desired dc link voltage to control the switching devices of the first rectifier/inverter. A second controller for the second rectifier/inverter uses a power demand signal indicative of the level of power to be transferred to the dc link from the network through the second rectifier/inverter, and a voltage demand signal indicative of the voltage to be achieved at network terminals of the filter to control the switching devices of the second rectifier/inverter.
    • 将需要可变电压/频率的电动机与提供标称固定电压/频率的电源网络接合的电力转换器包括连接到定子和第二整流器/逆变器的第一整流器/逆变器。 整流器/逆变器均由直流链路互连,并包括开关装置。 滤波器连接在第二整流器/逆变器和网络之间。 第一整流器/逆变器的第一控制器使用指示期望的直流链路电压的直流链路电压需求信号来控制第一整流器/逆变器的开关装置。 用于第二整流器/逆变器的第二控制器使用指示通过第二整流器/逆变器从网络传送到直流链路的功率电平的功率需求信号,以及指示将要实现的电压的电压需求信号 滤波器的网络端子来控制第二整流器/逆变器的开关器件。
    • 13. 发明申请
    • LOAD-AWARE LOAD-BALANCING CLUSTER
    • 负载 - 负载平衡组
    • US20130174177A1
    • 2013-07-04
    • US13495114
    • 2012-06-13
    • Christopher NewtonMaksim YevmenkinDavid FullagarJeffrey G. Koller
    • Christopher NewtonMaksim YevmenkinDavid FullagarJeffrey G. Koller
    • G06F9/46
    • H04L67/1008H04L67/1014H04L67/1025H04L67/148
    • A load-aware load-balancing cluster includes a switch having a plurality of ports; and a plurality of servers connected to at least some of the plurality of ports of the switch. Each server is addressable by the same virtual Internet Protocol (VIP) address. Each server in the cluster has a mechanism constructed and adapted to respond to determine the particular server's own measured load; convert the particular server's own measured load to a corresponding own particular load category of a plurality of load categories; provide the particular server's own particular load category to other servers of the plurality of servers; obtain load category information from other servers of the plurality of servers; and maintain, as an indication of server load of each of the plurality of servers, the particular server's own particular load category and the load category information from the other servers.
    • 负载感知负载平衡集群包括具有多个端口的交换机; 以及连接到交换机的多个端口中的至少一些端口的多个服务器。 每个服务器可由相同的虚拟互联网协议(VIP)地址寻址。 集群中的每个服务器都有一个构造并适应响应的机制,以确定特定服务器自己的测量负载; 将特定服务器自己的测量负载转换为多个负载类别的相应的自己的特定负载类别; 将特定服务器自己的特定负载类别提供给多个服务器中的其他服务器; 从多个服务器的其他服务器获取负载类别信息; 并且维护作为所述多个服务器中的每一个的服务器负载的指示,特定服务器自己的特定负载类别和来自其他服务器的负载类别信息。
    • 16. 发明申请
    • MONITORING SYSTEM
    • 监视系统
    • US20100100003A1
    • 2010-04-22
    • US12523159
    • 2008-01-14
    • Scott ChethamChristopher Newton DalyIan John Bruinsma
    • Scott ChethamChristopher Newton DalyIan John Bruinsma
    • A61B5/053
    • A61B5/0537A61B5/4869A61B5/4878A61B5/6824A61B5/6829
    • A method for performing impedance measurements on a subject. The method includes, in a processing system, causing at least one electrical signal to be applied to the subject via first leads operatively connected to first electrodes provided on the subject, determining a first indication indicative of at least one first electrical signal measured via second leads operatively disconnected from second electrodes positioned on the subject, determining a second indication indicative of at least one second electrical signal measured via second leads operatively connected to second electrodes positioned on the subject, and determining from the indications and the at least one applied signal, at least one instantaneous impedance value.
    • 一种用于对被摄体进行阻抗测量的方法。 该方法包括在处理系统中,通过可操作地连接到设在主体上的第一电极的第一引线使得至少一个电信号被施加到对象,确定指示通过第二引线测量的至少一个第一电信号的第一指示 与位于对象上的第二电极可操作地断开连接,确定指示通过可操作地连接到位于对象上的第二电极的第二引线测量的至少一个第二电信号的第二指示,以及根据指示和至少一个施加的信号, 至少一个瞬时阻抗值。