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. 09, 2012
Filed:
Aug. 24, 2009
Kartheek Chandu, Longmont, CO (US);
Larry M. Ernst, Longmont, CO (US);
Nenad Rijavec, Longmont, CO (US);
Mikel J. Stanich, Longmont, CO (US);
Sreenath R. Vantaram, Rochester, NY (US);
Chai W. Wu, Poughquag, NY (US);
Kartheek Chandu, Longmont, CO (US);
Larry M. Ernst, Longmont, CO (US);
Nenad Rijavec, Longmont, CO (US);
Mikel J. Stanich, Longmont, CO (US);
Sreenath R. Vantaram, Rochester, NY (US);
Chai W. Wu, Poughquag, NY (US);
Ricoh Production Print Solutions LLC, Boulder, CO (US);
Abstract
Methods and systems herein provide for reducing artifacts during printing. One printing system is operable to prepare a continuous tone image (CTI) for printing onto a print medium by generating an initial half tone image (HTI) based on the CTI. The printing system includes a printer and a print controller. The print controller filters the initial HTI and the CTI with a perceptual filter and determines an error between the filtered CTI and the filtered HTI. The print controller prints the HTI via the printer to determine printer artifacts and processes a scanned version of the printed HTI to determine an error between the filtered CTI and the scanned and filtered HTI. This processing updates the initial HTI and reduces the error between the filtered CTI and the filtered HTI.