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:
Jul. 06, 1976
Filed:
Jun. 17, 1974
Yoshiaki Ogawara, Inagi, JA;
Sony Corporation, Tokyo, JA;
Abstract
A circuit for correcting vertical deflection distortion of an image displayed by a cathode ray tube is composed of first, second, third, fourth, fifth and sixth transistors, a common load connected to output electrodes or collectors of the first and fourth transistors and a variable DC source connected to a control electrode or base of the sixth transistor. A saw-tooth signal having the vertical deflection frequency is applied to a control electrode or base of the third transistor, and the first and firth transistors and the second and fourth transistors are differentially switched at a rate corresponding to the horizontal deflection frequency so as to obtain from the load a signal for correcting vertical pincushion distortion.