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:
Jun. 06, 2000
Filed:
Apr. 29, 1997
Toru Ozeki, Aichi-ken, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
The present invention provides color reproduction method to reproduce arbitrary colors at high precision simply without requiring a number of preparatory steps. As a means for conversion between CMYK signal value and arbitrary chromaticity, a color material transfer amount which is a physical amount is handled as intermediate amount. A single color characteristic indicating a relation between the signal value and the color material transfer amount and a color mixing characteristic indicating a relation between each color material transfer amount (ink amount) of a plurality of inks and the chromaticity are obtained. By synthesizing the obtained single color characteristic and color mixing characteristic, the signal value/chromaticity characteristic is obtained in the form of a color conversion table.