Horizontal deviation correction circuit and method for a televis

Details Horizontal deviation correction circuit and method for a televis Horizontal deviation correction circuit and method for a televis

1998-02-26

2000-10-24

Westin, Edward P.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315370, H01J 2956, H01J 2970, G09G 104

Patent

active

061372447

ABSTRACT:
The present invention relates to a method for correction of the horizontal scanning current of a cathode-ray tube based on a modulation of this scanning current by a substantially parabolic signal at the image frame frequency, obtained by a squaring of a current ramp, including inflecting the ends of this current ramp before its squaring.

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patent: 4893065 (1990-01-01), Yamanaka
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patent: 4972127 (1990-11-01), Rodriguez-Cavazos et al.
patent: 5449982 (1995-09-01), Ando
patent: 5497055 (1996-03-01), George
patent: 5550441 (1996-08-01), George
patent: 5633566 (1997-05-01), Boettner et al.
patent: 5814952 (1998-09-01), Maige et al.
French Search Report from French Patent Application 97 02636, filed Feb. 28, 1997.

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