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. 03, 1999
Filed:
Oct. 28, 1997
Applicant:
Inventors:
Assignee:
Matsushita Electronics Corporation, Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ; H01J / ; H01H / ;
U.S. Cl.
CPC ...
313440 ; 313413 ; 313437 ; 313442 ; 335210 ; 335213 ; 335297 ; 335299 ;
Abstract
A deflection yoke for a cathode ray tube can correct both the pincushion distortion at the upper and lower edges of the screen and the misconvergence of the screen at the same time by the deflection yoke itself without the need for a correction magnet. The deflection yoke comprises a saddle shaped horizontal deflection coil, a saddle shaped vertical deflection coil located outside the horizontal deflection coil, and a high permeability core located outside the vertical deflection coil. The core has notch portions at the center parts of the upper and lower portions of the screen side end.