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:
Apr. 08, 1997
Filed:
Dec. 19, 1994
Applicant:
Inventors:
Masashi Ueda, Nagoya, JP;
Ryohei Komiya, Nagoya, JP;
Assignee:
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358521 ; 358515 ;
Abstract
In a CRT calibration device, gradation signals of plural colors displayed on a CRT are determined in a gradation signal calculator based on a .gamma. value input from a keyboard and data from a luminance value storage unit storing a plurality of relative luminance values on the CRT. If a user wants to correct the .gamma. value while seeing the plural colors displayed on the CRT, he inputs a correct .gamma. value through the keyboard.