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.

Date of Patent:
Jun. 24, 2003

Filed:

Sep. 30, 1999
Applicant:
Inventors:

Albert Runtze, Villingen, DE;

Fredrich Heizmann, Villingen, DE;

Günter Gleim, Villingen, DE;

John Barrett George, Carmel, IN (US);

Assignee:

Thomson Licensing SA, Boulogne Cedex, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 1/700 ; H04N 1/702 ;
U.S. Cl.
CPC ...
H04N 1/700 ; H04N 1/702 ;
Abstract

For control and correction of deflection parameters especially of convergence, a grid pattern is displayed on the picture screen of a television device. For control of the convergence parameters and the evaluation of the correction values the crossing points of the grid pattern are marked by a cursor. The cursor is formed by at least one irregularity in the grid pattern being, regular otherwise. The irregularity may consist in an omission within the grid pattern like an interruption within one horizontal or vertical grid line. An image signal generator for the grid pattern with position cursor includes a raster generator, a grid generator, a cursor generator, and means for combining a grid signal from the grid generator and a cursor signal from the cursor generator so as to inhibit the grid signal corresponding to locations on the grid pattern where the position cursor is visible by an absence of display of portions of the grid pattern.


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