公开(公告)号：US07366623B2

公开(公告)日：2008-04-29

申请号：US11138121

申请日：2005-05-26

申请人： Ian Llyod Bower ,  Dale Dietrick Wellborn ,  Barry Jon Male

发明人： Ian Llyod Bower ,  Dale Dietrick Wellborn ,  Barry Jon Male

IPC分类号： G01R19/00

CPC分类号： G01R27/16

摘要： A method for characterizing a load on a data line includes the steps of: (A) Applying at least three successive voltages to the data line. Each respective odd-numbered successive voltage of the at least three successive voltages has substantially a first voltage value displaced a first voltage interval from a reference voltage value. Each respective even-numbered successive voltage of the at least three successive voltages has substantially a second voltage value displaced a second voltage interval from the reference voltage value. (B) Measuring a respective current value on the data line while each of the at least three successive voltages is applied to the data line. (C) Comparing the respective current values for selected successive voltages of the at least three successive voltages to determine whether a hysteric impedance change occurs when voltage on the data line is varied.

摘要翻译： 用于表征数据线上的负载的方法包括以下步骤：（A）向数据线施加至少三个连续的电压。 所述至少三个连续电压中的每个相应的奇数连续电压基本上具有从参考电压值偏移第一电压间隔的第一电压值。 所述至少三个连续电压的每个相应的偶数连续电压基本上具有从参考电压值偏移第二电压间隔的第二电压值。 （B）测量数据线上的相应电流值，同时将至少三个连续电压中的每一个施加到数据线。 （C）比较所选择的至少三个连续电压的连续电压的各个电流值，以确定当数据线上的电压发生变化时是否发生歇斯底里的阻抗变化。