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:
Sep. 09, 2003
Filed:
Jun. 01, 1999
Timothy L. Kohler, San Jose, CA (US);
Todd Newman, Palo Alto, CA (US);
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A system for mapping an input point to a surface of a color gamut in a color space. A two-dimensional slice of the color space is selected. The two-dimensional slice includes the input point. A projection point in the two-dimensional slice and a projection between the input point and the projection point are determined. An intersection point between the projection and a mathematical approximation in the two-dimensional slice also is determined between points at least substantially on the surface of the color gamut. A new mathematical approximation is determined between points at least substantially on the surface of the color gamut, based on the intersection point. The intersection point is redetermined at an intersection between the projection and the new mathematical approximation. The determination of the new mathematical approximation and the redetermination of the intersection are repeated until the intersection point satisfies a goodness criteria.