Quasi feedback horizontal scan linearization for cathode ray tub

Details Quasi feedback horizontal scan linearization for cathode ray tub Quasi feedback horizontal scan linearization for cathode ray tub

1980-03-10

1981-10-27

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

01J 2970, H01J 2972

Patent

active

042976200

ABSTRACT:
A horizontal scan linearization circuit generates a linear ramp voltage during the active picture scan interval, which is compared to the non-linear ramp current of a cathode ray tube yoke circuit. The difference signal is fed back to the yoke circuit via a damper diode and is selectively added to the non-linear yoke current to correct the non-linearity.

REFERENCES:
patent: 3725726 (1973-04-01), West
patent: 3991345 (1976-11-01), Jaspers

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