Digital wave observation apparatus

Details Digital wave observation apparatus Digital wave observation apparatus

1985-10-09

1987-02-10

Dixon, Harold

Electric lamp and discharge devices: systems

Cathode ray tube circuits

315367, 324 77A, 324121R, 340734, 364487, G01R 2316, H01J 2334

Patent

active

046425195

ABSTRACT:
In a digital wave observation apparatus having an A/D converter for A/D converting an input signal, a trigger level setting device for setting a trigger level, a trigger signal generator for comparing the input signal with a set trigger level and generating a trigger signal, a wave memory for storing an A/D converted input signal in response to the trigger signal, and a display for displaying the input signal stored in the wave memory, the apparatus has a trigger level display device for displaying a horizontal line corresponding to a trigger level on the display irrespective of generation of the trigger signal.

REFERENCES:
patent: 2962625 (1960-11-01), Berwin et al.
patent: 3474438 (1969-10-01), Lauher
patent: 4302755 (1981-11-01), Pisani et al.
patent: 4346333 (1982-08-01), Dagostino
patent: 4555765 (1985-11-01), Crooke et al.

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