Picture distortion correction apparatus

Details Picture distortion correction apparatus Picture distortion correction apparatus

1996-11-20

1998-09-08

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315371, H01J 2970, H01J 2976

Patent

active

058049282

ABSTRACT:
Series connected first to fourth reactor coils are wound on a core and connected in series with a horizontal deflection coil. A coil is also wound on the core and connected in series with a vertical deflection coil. The core is provided with two permanent magnets and magnetic bias is applied to the first to fourth reactor coils. A total inductance of first to fourth reactor coils is controlled by a vertical deflection current passing through the coil, and thereby, a correction amount of an amplitude of a horizontal deflection current is changed.

REFERENCES:
patent: 3681725 (1972-08-01), Ikeuchi
patent: 3806853 (1974-04-01), KiKuchi
patent: 4084115 (1978-04-01), Peer
patent: 4321511 (1982-03-01), Willis
patent: 4563618 (1986-01-01), Haferi
patent: 4642530 (1987-02-01), Rodriguez-Cavazos

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