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:
Apr. 16, 2002
Filed:
Dec. 15, 1999
Applicant:
Inventors:
Nacerdine Azzi, Fontaine-les-Dijon, FR;
Olivier Masson, Cuisery, FR;
Assignee:
Thomson Licensing S.A., Boulogne, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 2/976 ;
U.S. Cl.
CPC ...
H01J 2/976 ;
Abstract
A deflection yoke mounted on a neck of a cathode ray tube includes a pair of horizontal deflection coils, a pair of vertical deflection coils and a core of a ferromagnetic material. The core has magnetic reluctance, in a front region, close to a screen end of the tube, that is greater along the vertical direction than along the horizontal direction. In one embodiment of the invention this feature is achieved by making recesses at the intersection of a flared front part of the core with the horizontal plane of symmetry XZ. In another embodiment of the invention, the thickness of the core varies.