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:
Dec. 03, 1996
Filed:
Jun. 08, 1992
Hidenori Takita, Nagasaki, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A CRT display for producing picture images on a cathode ray tube comprising a bipolar electromagnet located at a neck portion of a cathode ray tube and having field coils to produce a bipolar magnetic field for imparting a corrective horizontal or vertical deflection to an electron beam being deflected by the deflection yoke, upon receiving, from a current supply circuit, a sawtooth current with positive and negative alternations in synchronism with the deflection current of the cathode ray tube. The bipolar electromagnet is adopted to produce a bipolar magnetic field on the basis of an alternating sawtooth current which is supplied to its field coils in synchronism with the deflection current.