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:
Apr. 27, 2010
Filed:
Sep. 30, 2005
R. Enrique Viturro, Rochester, NY (US);
Lalit Keshav Mestha, Fairport, NY (US);
Joseph Hancock, Rochester, NY (US);
Tonya Love, Rochester, NY (US);
R. Enrique Viturro, Rochester, NY (US);
Lalit Keshav Mestha, Fairport, NY (US);
Joseph Hancock, Rochester, NY (US);
Tonya Love, Rochester, NY (US);
Xerox Corporation, Norwalk, CT (US);
Abstract
An automatic gray balance control system to produce TRCs for all primary colors in a reproduction device and for each pitch of a photoreceptor system by printing target patches for each pitch, measuring the output colors, and automatically readjusting the tone reproduction curves until a satisfactory level of accuracy is obtained as compared to the theoretical desired output. The system produces pitch-based gray balanced TRCs that are updated frequently for each pitch, with different TRCs for different pitches, to ensure consistency in output from pitch to pitch as well as from page to page on a given pitch.