Self-adjusting oscilloscope

Details Self-adjusting oscilloscope Self-adjusting oscilloscope

1986-12-19

1988-05-10

Karlsen, Ernest F.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Cathode ray

324115, 364487, G01R 1300, G01R 1508

Patent

active

047438444

ABSTRACT:
A digital oscilloscope includes an amplifier having adjustable gain and offset for producing an output signal in response to an input signal, a triggering system for producing a trigger status signal when the amplifier output signal reaches an adjustable trigger level, and a digitizer for generating a waveform data sequence representing magnitudes of samples of the amplifier output signal acquired at various times with respect to assertion of the trigger status signal. The oscilloscope produces a waveform display on a screen according to the waveform data sequence produced by the digitizer and automatically adjusts the amplifier gain and offset, the trigger level, and the sampling rate of the digitizer so that the waveform data produced by the digitizer provides for a waveform display suitably representative of the time dependent behavior of the input signal.

REFERENCES:
patent: 3204144 (1965-08-01), Deavenport
patent: 3873918 (1975-03-01), Talbert
patent: 4271391 (1981-06-01), Kmetz

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