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:
Feb. 01, 1994
Filed:
Aug. 01, 1991
Shigeki Ishizuka, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A video signal processing method for use in magnifying and reducing an image by interpolating a scanning line within a field when an interlaced original video signal is magnified or reduced by a factor of m/n (m, n are natural numbers), wherein origins of an odd field and an even field for magnifying or reducing processing are offset so as to be equally distanced from adjacent scanning lines within the odd field and the even field, whereby the origins of the odd and even fields for magnifying and reducing processing are set at a common position, and the local filter characteristic is made equal in the odd and even fields, thereby removing a line flicker in an image after the magnifying and reducing processing has been performed and a flicker caused by the vertical resolution differing from one field to another.