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:
Jan. 04, 1983
Filed:
Nov. 26, 1980
Applicant:
Inventors:
Tomomitsu Kuroyanagi, Yokohama, JP;
Hitoshi Miyagawa, Shiga, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ;
U.S. Cl.
CPC ...
358 22 ; 358 29 ;
Abstract
A picture-in-picture color television receiver for simultaneously displaying on a screen a first and a second picture read out from a memory in a state that the second picture is inserted in the first picture, is disclosed. A DC restoration circuit for DC-restoring a color difference signal of the second picture DC-restores a color difference signal of the second picture at the reference level coincident with the reference level of the color difference signal of the first picture, thereby to make the white balance of the first picture coincident with that of the second picture.