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Machine translation
1. (WO1980000518) CONVERGENCE DEVICE FOR COLOR CATHODE RAY TUBE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/000518    International Application No.:    PCT/JP1979/000006
Publication Date: 20.03.1980 International Filing Date: 11.01.1979
IPC:
H04N 9/28 (2006.01)
Applicants:
Inventors:
Priority Data:
78/107119 31.08.1978 JP
Title (EN) CONVERGENCE DEVICE FOR COLOR CATHODE RAY TUBE
(FR) DISPOSITIF DE CONVERGENCE POUR UN TUBE COULEUR A RAYONS CATHODIQUES
Abstract: front page image
(EN)It is now required to correct the convergence of a color cathode ray tube with high accuracy. Regarding this requirement, there exists a problem of chromatic aberration in the color cathode ray tube. This invention provides a highly accurate convergence circuit which has active elements such as transistors or the like, instead of the conventional convergence circuit which has passive elements such as coil L, capacitor C, resistor R, etc. That is, this convergence circuit has the feature that the cathode ray tube surface is divided into the center and peripheral portions (upper and lower, and right and left side portions) by comparison the square signal voltage generated from X and Y deflection signal voltages with a reference voltage, to thereby independently adjust the respective portions of the cathode ray tube.
(FR)Il est maintenant necessaire de corriger la convergence d"un tube couleur a rayons cathodiques avec une haute precision. Dans ce contexte, il existe un probleme d"aberration chromatique pour ce tube couleur a rayons cathodiques. Cette invention propose d"etablir un circuit de convergence de haute precision ayant des elements actifs tels que des transistors ou similaires, au lieu du circuit conventionnel de convergence qui possede des elements passifs tels qu"une bobine L, un condensateur C, une resistance R, etc. C"est a dire que ce circuit de convergence a comme trait caracteristique que la surface du tube a rayons cathodiques est divisee en parties centrales et peripheriques (parties superieure et inferieure, cote droit et cote gauche) par comparaison du signal carre de tension, engendre par les signaux de deflection X et Y des tensions, avec une tension de reference, pour ainsi ajuster les portions respectives du tube a rayons cathodiques.
Designated States:
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)