Time base and delay control

Details Time base and delay control Time base and delay control

1975-07-17

1976-12-28

Farley, Richard A.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

324 77R, H01J 2970, H01J 2972

Patent

active

040004392

ABSTRACT:
A display control circuit for automatically displaying a sampled test signal on a CRT display, or the like, where the test signal is received at an unknown period following a trigger. The circuit first establishes a base line referenced level, then the sampling of the test signal is controlled by a varied pedestal voltage or counter potential until the magnitude of the sampled test signal exceeds the base line reference level by a predetermined potential. The pedestal voltage or counter potential required to establish this predetermined potential is used for delaying the start of the display sweep following the trigger.

REFERENCES:
patent: 3557354 (1971-01-01), Trimble
patent: 3626168 (1971-12-01), Norsworthy

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