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. 24, 2004
Filed:
Jan. 15, 2003
Mark A. Scheuer, Williamson, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
An actual tone reproduction curve of an electrophotographic system is controlled at several points to coincide with a target tone reproduction curve. The several points are referred to as level 2 control points. The level 2 control points are dynamically selected to, for example, minimize an aspect of error between the actual tone reproduction curve and the target tone reproduction curve. Test patches are generated in association with target test patch densities. Actual test patch densities are measured. An approximation of the actual tone reproduction curve is fit to the measured data. New level 2 control points are selected to minimize an aspect of deviation or error between the actual tone reproduction curve and the target tone reproduction curve. A system operative to dynamically select the level 2 control points includes means for selecting optimum level 2 control points.