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:
Mar. 31, 1998

Filed:

Jul. 19, 1996
Applicant:
Inventors:

Junji Masumoto, Ibaraki, JP;

Hideyuki Go, Takatsuki, JP;

Yasuaki Sakanishi, Takatsuki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
31536812 ; 348807 ;
Abstract

The invention presents a digital convergence apparatus of high precision, relating to a digital convergence apparatus applicable to a color display device for displaying various image information in various signal formats, and capable of correcting convergence at high precision to correct color deviation of color image, comprising frequency detecting means for detecting frequency of synchronizing signal included in input signal in every input signal entered from outside, digital convergence correction data operating means for operating digital convergence correction data for display means for displaying the input signal as image, corresponding to the frequency detected by the frequency detecting means, using horizontal synchronizing signal or vertical synchronizing signal of the synchronizing signal as timing signal, and pattern signal generating means for generating a convergence adjusting pattern corresponding to the digital convergence correction data from the correction data operating means, wherein the digital convergence of the image displayed by the display means is corrected by using the digital convergence correction data and convergence correcting pattern corresponding to the output of the frequency detecting means.


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