Picture display device including a line synchronizing circuit an

Details Picture display device including a line synchronizing circuit an Picture display device including a line synchronizing circuit an

1988-10-05

1989-10-03

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315371, 358158, H01J 2970, H01J 2976

Patent

active

048719510

ABSTRACT:
A picture display device, having a line synchronizing circuit and a line deflection circuit, suitable for several line frequencies. Use is made of a modulator for modulating the line deflection current, a control stage being coupled to this modulator for applying a correction signal for correcting, in dependence on the frequency of a line oscillator in the line synchronizing circuit, the S-distortion or the linearity error, respectively, or to keep the amplitude of the line deflection current constant upon a change in the line frequency.

REFERENCES:
patent: 4187451 (1980-02-01), Boekhorst
patent: 4510527 (1985-04-01), den Hollander
patent: 4533855 (1985-08-01), Willis et al.
patent: 4565949 (1986-01-01), Haferl

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