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    • 29. 发明授权
    • Data logging
    • 数据记录
    • US06405155B2
    • 2002-06-11
    • US09883261
    • 2001-06-19
    • Graham Russell ChealeAndrew Kassell
    • Graham Russell ChealeAndrew Kassell
    • G06F1500
    • G01V1/247
    • A logging system 2 is described in which an input signal value is compared by a signal processor 12 to a trigger-band 34 and an inner-band 36 centered about a previously logged value 34 and changing at a previously determined rate of change. When the trigger-band is exceeded at point 40, intermediate points are logged representing the maximum and minimum points since the last logged point and the point at which the inner-band was left. The intermediate points enable a more accurate subsequent reconstruction of the actual signal to be made from the logged values.
    • 描述记录系统2,其中输入信号值被信号处理器12与触发带34和以先前记录的值34为中心并以先前确定的变化率变化的内带36进行比较。 当在点40处超过触发带时,记录中间点,表示自上次记录点以及内带留下的点以来的最大和最小点。 中间点使得能够从记录值进行更精确的后续重建实际信号。