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:
Nov. 28, 1978
Filed:
Jan. 24, 1977
Applicant:
Inventors:
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358 29 ;
Abstract
A picture quality improving apparatus for a color television receiver in which red, green and blue system nonlinearities n.sub.R, n.sub.G and n.sub.B are similar to each other. The picture quality is improved by so adjusting the values of the three cathode resistances connected to the three cathodes of the picture tube to satisfy the relation n.sub.B >n.sub.G .gtoreq.n.sub.R.