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.:

US 6684790 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 03, 2004

Filed:

Jan. 21, 2003
Applicant:
Inventors:

Günter Bestmann, Altenholz, DE;

Dietrich Blum, Raisdorf, DE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41F 1/54 ;
U.S. Cl.
CPC ...
B41F 1/54 ;
Abstract

A method of determining the area coverages of a printing plate for controlling the quantities of ink in inking zones of a printing press, includes, to produce the plate from existing printed-sheet data, producing color-value printing data based upon a standard raster system, converting the printing data by a raster generator into rastered printing data, exposing the rastered printing data onto film material or a printing plate by an exposer, using various raster systems with different dot gains on the plate, in the raster generator, depending on the raster system used, applying an associated dot gain correction curve and a linearization correction curve to the color-value printing data, and supplying an area coverage calculation unit with coarse color-value image data derived from the color-value printing data, a dot gain correction curve for each raster system used, and correction location data describing in which areas of the plate which raster system is used.


Find Patent Forward Citations

Bestmann, Günter. (2004). Method of determining the area coverage of printing plates (U.S. Patent No. 6684790). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6684790

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