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:
Sep. 17, 2002
Filed:
Apr. 10, 2000
Bernd Kistler, Eppingen, DE;
Nikolaus Pfeiffer, Heidelberg, DE;
Heidelberger Druckmaschinen AG, Heidelberg, DE;
Abstract
A method of regulating inking when printing with a printing machine, including determining an actual color value with a color measuring device directed towards a printed material, and feeding the determined actual color value to a color control device, comparing the actual color value with a desired color value, forming an adjusted variable from the comparison value by using a mathematical model of the ink control loop, and feeding the adjusted variable to an ink setting element so that the setting element correctingly changes the inking, which comprises calculating a steady state value (s ) from an additive superimposition of the time changes in preceding adjusted variable changes (&Dgr;y ), and calculating a new adjusted variable (y) from the desired color locus (x ), the actual color value (x ) and the steady state value (s ).