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:
Aug. 11, 1992
Filed:
May. 17, 1991
Walter Truskalo, Indianapolis, IN (US);
Thomson Consumer Electronics, Inc., Indianapolis, IN (US);
Abstract
A winding of a transformer is wound around a core bead that surrounds a wire conducting a horizontal deflection current. Close to a time when zero crossing occurs in the horizontal deflection current, at the center of horizontal trace, the core of the transformer changes from being saturated to being nonsaturated and a pulse is produced in the transformer. The pulse triggers a one-shot multivibrator arrangement that produces a reset pulse. A horizontal rate parabolic voltage generator is responsive to the reset pulse for generating a horizontal rate parabolic voltage that is coupled to an auxiliary coil mounted on a cathode ray tube to produce, for example, a vertical convergence error correction current.