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. 05, 1985
Filed:
Jul. 22, 1983
Applicant:
Inventor:
Takato Narita, Atsugi, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ;
U.S. Cl.
CPC ...
358 28 ; 358 19 ;
Abstract
One color difference signal, for example, (B-Y) is modulated by a signal from a constant frequency wave generator which is phase-shifted by 90 degrees and other color difference signal (R-Y) is modulated by a signal generated from the constant frequency wave generator after the color difference signal (R-Y) is added with a predetermined DC level during a predetermined duration. This predetermined DC level is controlled by a variable resistor, and the predetermined duration is determined by a burst flag pulse. The modulated signals of the both color difference signals (R-Y), (B-Y) are mixed by a mixer.