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:
Oct. 30, 2012
Filed:
Sep. 28, 2007
Wei Ming, Cupertino, CA (US);
Hiroshi Tomita, Irvine, CA (US);
Wei Ming, Cupertino, CA (US);
Hiroshi Tomita, Irvine, CA (US);
Konica Minolta Laboratory U.S.A., Inc., San Mateo, CA (US);
Abstract
A method for compensating for color variations introduced by printer hardware limitations and other factors is described. First, for each printer model or each individual printer, the extent of color variation throughout a printed page is determined. Based on this determination, each page is partitioned into a plurality of image areas. Then, in an actual printing process, the page of image is printed in a multi-pass process where each image area is printed in a separate pass. The digital image data is shifted and/or rotated for each pass, and the paper is shifted and/or rotated correspondingly, so that the different image areas printed in different passes form a complete image on the final printed page. From the standpoint of the pointer hardware, all passes involve printing the same area of a physical page, resulting in reduced color variation across the page.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile