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. 14, 2001
Filed:
Dec. 13, 1999
Minoru Hojo, Tokyo, JP;
Takeo Kawaguchi, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A device for correcting a landing position of an electron beam in a color cathode ray tube has a funnel temperature sensor, an ambient temperature sensor, a landing correction coil disposed on or around a corner of the outer surface of the color cathode ray tube, and a processor and controller for calculating a first temperature difference between the temperature of the funnel and the ambient temperature and a second temperature difference between a predetermined design temperature and the ambient temperature, and calculating a current value for the landing correction coil according to the first and second temperature differences to supply a current of the obtained current value to the landing correction coil.