Circuit and method for correcting side pincushion distortion and

Details Circuit and method for correcting side pincushion distortion and Circuit and method for correcting side pincushion distortion and

1980-01-25

1982-01-05

Hubler, Malcolm F.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315389, H01J 2970

Patent

active

043096409

ABSTRACT:
A circuit within a cathode-ray tube electromagnetic deflection system for correcting side pincushion distortion and regulating picture width independent of changes in the video line rate. The circuit employs a predistorted AC reference signal and a second DC reference signal in a closed-loop manner to cause a deflection current to describe precisely an ideal waveform defining simultaneously both pincushion correction and picture width regulation.

REFERENCES:
patent: 3432719 (1969-03-01), Strachanow
patent: 3649870 (1972-03-01), Maulsby
patent: 4039899 (1977-08-01), Battjes et al.
patent: 4129807 (1978-12-01), Infante
patent: 4184104 (1980-01-01), Shouse, Jr.
patent: 4243918 (1981-01-01), Meise

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