Deflection yoke for use in color cathode ray tubes

Details Deflection yoke for use in color cathode ray tubes Deflection yoke for use in color cathode ray tubes

1990-07-27

1992-05-19

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

335213, H01J 2956

Patent

active

051151707

ABSTRACT:
A deflection yoke for color cathode ray tubes, the deflection yoke including a vertical deflection coil for generating a vertical deflecting magnetic field having a barrel-shaped distortion, and a horizontal deflection coil for generating a horizontal deflection magnetic field having a pin-cushion shaped distortion, a differential coil connected to the horizontal deflection coil, a pair of cores located in opposite positions at a smaller rim portion of the yoke, the cores being provided with coils for generating a quadripolar magnetic field, a pick-up coil magnetically coupled to the differential coil or the horizontal deflection coil, and a current waveform shaping circuit for supplying a current to the quadripolar magnetic field generating coils.

REFERENCES:
patent: 3714500 (1973-01-01), Kaashoek
patent: 3792305 (1974-02-01), Lister
patent: 4554488 (1985-11-01), Kobayashi et al.
patent: 4728915 (1988-03-01), Konosu et al.
patent: 4737692 (1988-04-01), Okuyama et al.
patent: 4818919 (1989-04-01), Kobayashi et al.

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