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. 15, 1995
Filed:
Mar. 01, 1994
Applicant:
Inventor:
Antonius H Van Tiel, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G / ; H01J / ;
U.S. Cl.
CPC ...
315371 ; 315395 ;
Abstract
When, for example, horizontal lines are displayed on a display screen of a display device, they may exhibit a field distortion, predominantly in the form of gullwing distortion which becomes manifest as a sinewave-shaped line instead of the horizontal line to be displayed. To correct this field distortion, a correction is generated by a field distortion correction circuit and a resonant circuit, dependent on the location on the display screen, which correction is added to the field deflection current so that the picture to be displayed is corrected for this error.