Oscilloscope having a displayed trigger indicator

Details Oscilloscope having a displayed trigger indicator Oscilloscope having a displayed trigger indicator

1987-10-08

1988-08-09

Karlsen, Ernest F.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Cathode ray

324 96, 324115, 340754, G01R 1320, G01R 1508, G09G 300

Patent

active

047630671

ABSTRACT:
An oscilloscope having a displayed trigger indicator is provided in which triggering level, slope, and source information on displayed directly on the viewing screen adjacent corresponding waveforms. In a preferred embodiment, a vertical bar represents the triggering level range, and a marker or dot is superimposed thereon to indicate the trigger level. Slope polarity is also indicated, as is triggering source. These indicators permit the triggering point to be quickly selected and set while viewing them in relationship to corresponding waveforms, and are always on screen for convenient reference and waveform photography.

REFERENCES:
patent: 4072851 (1978-02-01), Rose
patent: 4593242 (1986-06-01), Bristol et al.

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