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:
May. 14, 2002
Filed:
Sep. 01, 2000
Antonius Henricus Van Tiel, Eindhoven, NL;
Albertus Aemilius Seyno Sluijterman, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
The invention relates to a color display device comprising an in-line electron gun ( ) for generating three electron beams ( ), a deflection unit ( ) for deflecting the electron beams ( ) and a convergence unit ( ′) for dynamically influencing the convergence of the electron beams. A variable transformer ( ) is connected between the convergence unit ( ′) and the deflection unit ( ) for compensating undesired voltages induced by the deflection unit ( ). The variable transformer ( ) comprises three coils ( ) wound around a hollow coil holder ( ) and an adjustable core ( ), which moves within the coil holder.