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. 14, 2006
Filed:
Apr. 13, 2001
Shuichi Kagawa, Tokyo, JP;
Hiroaki Sugiura, Tokyo, JP;
Junichi Nose, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A conventional color conversion apparatus was associated with a problem of generation of an achromatic component and reduction in the luminance. A color conversion apparatus according to the present invention generates new color data corresponding to color red of red, green and blue by means of matrix calculation using a first calculation term which is effective for just one of the hues of red, yellow, blue, green, cyan, magenta and yellow, and a second calculation term which is calculated from the first calculation term and which is effective for a predetermined inter-hue region included in at least one of inter-hue zones of red-yellow, yellow-green, green-cyan, cyan-magenta, and magenta-red, so that color conversion can be achieved without generation of an unnecessary achromatic component or reduction in the luminance.