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    • 3. 发明授权
    • Method and apparatus for measuring electric characteristics of cable assembly, and computer product
    • 用于测量电缆组件和计算机产品的电气特性的方法和装置
    • US07005862B2
    • 2006-02-28
    • US11094579
    • 2005-03-31
    • Yasushi Onodera
    • Yasushi Onodera
    • G01R31/11G01R27/32
    • G01R31/11
    • A propagation delay time of a cable assembly is measured by calculating a half of a time difference between a branch point of time-dependent variations of amplitude of reflection coefficient obtained by connecting a first connector with both terminals open-circuited and a second connector with one terminal short-circuited to a conversion adaptor in turn and a branch point of the time-dependent variations of the amplitude of reflection coefficient obtained by connecting one terminal of the cable assembly with other terminal connected to the first connector and one terminal of the cable assembly with other terminal connected to the second connector to the conversion adaptor in turn.
    • 电缆组件的传播延迟时间通过计算通过连接具有两端的第一连接器断开的反射系数的时间变化幅度的分支点之间的时间差的分支点与具有一个开关的第二连接器而计算出的时间差的一半 依次将转换适配器与转换适配器短路,以及通过将电缆组件的一个端子与连接到第一连接器的另一个端子和电缆组件的一个端子连接而获得的反射系数的时间依赖性变化的分支点 其他终端依次连接到转换适配器的第二个连接器。