The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 04, 1994
Filed:
Oct. 29, 1992
Kari Vigelius, Salo, FI;
Salcomp Oy, Salo, FI;
Abstract
A method and a circuit for generating the control voltages of the dynamic convergence in a color display tube, in which the current of the convergence coils (HC, VC) is controlled. The control voltages for the convergence coils (HC, VC) are obtained from several controlling means (1-16). A voltage independent of the horizontal and vertical deflection frequencies is switched to the control means.(1-16). The voltage from each controlling means (1-16) is switched to the coils (HC, VC) by signals (f.sub.ch, f.sub.cv) synchronized to the horizontal and vertical deflection pulses (f.sub.h, f.sub.v), whereby the convergence of different parts (a1-a16) of the display is controlled by a voltage provided by a separate controlling means (1-16).