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:
Oct. 18, 1995
Kiwame Tokai, Ebina, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
A color masking parameter determining apparatus comprising a virtual spectral reflectance generating means for generating virtual spectral reflectance according to spectral reflectance of actually printed color patch, a sensor output calculating means for performing calculation on virtual spectral reflectance and spectral response of the constituent elements of a sensor thereby obtaining primary color luminance as the ideal output of the sensor, a coordinate-in-uniform-color-space calculating means for calculating coordinates in the uniform color space corresponding to the virtual spectral reflectance, and a masking parameter calculating means for transforming coordinates in the uniform color space in conformity with actual phenomena to primary color luminance values by calculating arbitrary coordinates in the uniform color space using the calculated primary color luminance values and coordinates in the uniform color space thereby obtaining color masking parameters.