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:
Oct. 30, 1984
Filed:
Jun. 22, 1982
Takaaki Hashimoto, Noda, JP;
Nippon Kogaku K.K., Tokyo, JP;
Abstract
In a color television camera of the type in which the red and blue color component signals modulated spatially by color filters and generated from a pick up tube are demodulated by the technique of phase separation through the utilization of correlation in successive scanning lines, a method and apparatus are disclosed which prevent the occurrence of false color signals within the camera by suppressing color errors which occur at the vertical edge portions in the reproduced image on a picture screen of a color television reproducing apparatus. The gain of a color error detecting difference signal indicative of the positions of the vertical edge portions is adjusted by either one or both of red and blue color difference signals, to selectively vary the amount of suppression of the color signals in accordance with the hues. The prevention of a decrease in the color saturation, and the prevention of a green or magenta color error, are effected at the contours of yellowish colors at the boundaries of black and white areas in an image having a high contrast.