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.

Date of Patent:
Jul. 14, 1992

Filed:

Apr. 25, 1990
Applicant:
Inventors:

Hidetoshi Ozaki, Tokyo, JP;

Akira Goukura, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358 28 ; 358 22 ;
Abstract

A color signal processing circuit which includes a conversion unit for converting two color difference signals, which are equivalent to color difference signals obtained by color demodulation of a color signal by using two color difference axes intersecting perpendicularly to each other. The color difference signals are converted into a color amplitude signal corresponding to the amplitude of the color signal and a color phase signal corresponding to the phase of the color signal. Also included is a signal processing unit for processing at least either of the color amplitude signal and the color phase signal. Thus, it is easy to obtain a color difference signal in which a residual phase error included in the color signal is eliminated.


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