Side pincushion correction system

Details Side pincushion correction system Side pincushion correction system

1978-04-17

1980-05-06

Wilbur, Maynard R.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315371, 315403, H01J 2970

Patent

active

RE0302716

ABSTRACT:
A series coupled inductance and active current conducting device are coupled in parallel with a winding of an output transformer of a horizontal deflection generator. Flyback pulses integrated in sawtooth waveforms are combined with a vertical rate parabolic waveform derived from a vertical deflection generator and coupled to a control electrode of the active device for controlling its conduction during each flyback interval at a vertical rate for loading the output transformer and thereby altering the horizontal scanning current in a manner to correct for side pincushion distortion.

REFERENCES:
patent: 3648099 (1972-03-01), Otten et al.
patent: 3668463 (1972-06-01), Smith et al.

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