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:
Nov. 08, 1995
Applicant:
Inventor:
Hiroshi Sahara, Kanagawa, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G / ; H01J / ;
U.S. Cl.
CPC ...
315371 ; 315387 ;
Abstract
A flat type CRT includes a horizontal deflection circuit and/or a vertical deflection circuit, in which order to prevent undesired zooming without using a high voltage regulator, reduce an amount of overscanning, and stabilize the picture, the deflection circuit is separated from a high voltage generating circuit, and a capacitor is provided between the high voltage generating circuit and the deflection circuit. The capacitor is arranged to provide a low voltage .DELTA.HV proportional to an anode voltage HV. This low voltage is added to the output of a transistor so that the level of the deflection voltage is varied.