Patent ID: 6111400
Filing Date: 2000-08-29
Classification: G01R

Abstract:
A method of automatically selecting within the trace of a digital oscilloscope a waveform feature upon which to perform a measurement, the method comprising the steps of:storing digitized values representative of the waveform for a signal;triggering the digital oscilloscope in response to the detection of a trigger event;displaying upon a video display a trace having a selected time scale and a trigger reference point indicated therein that represents a selected distance in time away from the occurrence of the trigger event and that is also located at a selected location in the trace;selecting a type of waveform feature that is to be measured automatically;inspecting the stored digitized values to determine which, if any, of the waveform features that are of the selected type is closest in time to the trigger reference point; andperforming the selected type of measurement upon the waveform feature determined by the inspecting step.