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:
Feb. 05, 2002
Filed:
Dec. 21, 2000
Anatoly Moskalev, Irvine, CA (US);
Conexant Systems, Inc., Newport Beach, CA (US);
Abstract
K replacement for color digital image printing reduces the computational complexity and processing resource requirements of an image printing system. The invention is implemented using a variety of devices capable of reproducing image data including color photo-copy machines, color facsimiles, color printers, black and white printers, and digital printers. The image printing system is employed in a multi-functional peripheral capable of performing several functions. The image printing system detects whether or not ink is to be printed using all of the available print channels in the system. If ink is to be printed using a predetermined number of the print channels, the image printing system performs K replacement and applies error diffusion to a predetermined number of the print channels. In certain embodiments, K replacement is performed only when the spectral content of a given pixel falls within a predetermined range of a spectrum. This spectrum may be a color spectrum wherein the spectrum varies across the entire visible spectrum. Alternatively, the spectrum can be an intensity spectrum wherein the spectrum varies from a highest intensity to a lowest intensity.