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. 09, 1998
Filed:
May. 22, 1996
Yasumasa Yamada, Chiba, JP;
Abstract
A color correction device which minimizes color differences throughout an area to be subjected to color reproduction includes a dynamic range conversion circuit for the colors cyan, magenta, and yellow, a separation circuit for separating the colors into high order bits and low order bits, and a CMY table reference for obtaining CMY table values corresponding to the high order bits. An interpolation circuit performs an interpolation process based on the low order bits and the CMY table values. A K-table reference obtains four K-table values corresponding to black, and a CMY correction circuit corrects for the values of cyan, magenta, and yellow based on three interpolated data from the interpolation circuit and three data obtained by the K-table reference.