Circuit and method of linearity correction for CRT deflection ci

Details Circuit and method of linearity correction for CRT deflection ci Circuit and method of linearity correction for CRT deflection ci

1980-12-05

1983-07-26

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315387, H01J 2970, H01J 2976

Patent

active

043956637

ABSTRACT:
Electronic apparatus and method is disclosed for generating a linearity correction signal for use in or with a CRT electron beam deflection circuit. In a preferred embodiment, transistor is used to vary the parameters of a multiple feedback infinite gain bandpass filter such that the filter is essentially on the point of oscillation during trace, but is highly damped during retrace.

REFERENCES:
patent: 2954501 (1960-09-01), Pfeiffer
patent: 3501671 (1970-03-01), Buechel
patent: 3562557 (1971-02-01), Gates
patent: 3662286 (1972-05-01), Krupa
patent: 3821652 (1974-06-01), Wiebe et al.
patent: 3983452 (1976-09-01), Bazin
patent: 3991345 (1976-11-01), Jaspers

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