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:
Nov. 03, 1992
Filed:
Dec. 13, 1991
Enrique Rodriguez-Cavazos, Indianapolis, IN (US);
Gunter Gleim, Villingen, DE;
Jacques Chauvin, Monchweiler, DE;
Thomson Consumer Electronics, Inc., Indianapolis, IN (US);
Abstract
Convergence correction waveforms are generated for multiple vertical formats. One of a number of vertical formats is selected for displaying a video signal. The vertical formats differ by respective vertical scanning rates, respective vertical scanning heights, or both. A set of convergence correction values corresponding to a plurality of raster locations is stored for each of the different vertical scanning heights. An interpolation control value is stored for each of the vertical scanning frequencies. An interpolator is responsive to different ones of the control values for generating a different set of intermediate convergence correction values for each of the vertical scanning frequencies, from each of the sets of stored convergence correction values. The interpolator generates the intermediate convergence correction values between horizontally and vertically spaced ones of the raster locations.