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. 12, 2012
Filed:
Dec. 22, 2008
Jun Hoshii, Shiojiri, JP;
Takashi Ito, Hata-machi, JP;
Jun Hoshii, Shiojiri, JP;
Takashi Ito, Hata-machi, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A color difference ΔE between a target color value expressed by color measurement data MD obtained by measuring colors of a target TG under plural light sources and an estimation color value obtained when a printer performs printing on the basis of an ink amount set φ is calculated for each of the light sources. When the color difference can be calculated for each of the light sources, an evaluation value E (φ) obtained by linear combination of the color differences is calculated. In addition, the ink amount set φ is calculated as an optimum solution for minimizing the evaluation value E (φ).