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:
Jan. 15, 2008
Filed:
Jul. 21, 2003
Stephen F. Linder, Fairport, NY (US);
Zhenhuan Wen, Rochester, NY (US);
Peter D. Mccandlish, Pittsford, NY (US);
Yingjun Bai, Webster, NY (US);
Clara Cuciurean-zapan, Fairport, NY (US);
Stephen F. Linder, Fairport, NY (US);
Zhenhuan Wen, Rochester, NY (US);
Peter D. McCandlish, Pittsford, NY (US);
Yingjun Bai, Webster, NY (US);
Clara Cuciurean-Zapan, Fairport, NY (US);
Xerox Corporation, Norwalk, CT (US);
Abstract
A method permitting an end user to recalibrate a color reproduction device. The color reproduction device includes a device for converting the native color values of the scanner into a device independent color space, a test target, and the desired values of each patch of the test target. The method includes printing the test target and scanning it with a scanner that forms a part of the color reproduction device. The device compares the desired values with the values obtained from scanning the printed test target to obtain a set of adjustment values to compensate for drift in the output of the color reproduction device. The compensation emphasizes restoration of the overall gray balance of the color reproduction device and can be implemented by modifying the tone reproduction curves or the halftone process used in the color reproduction device.