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:
Mar. 25, 2003
Filed:
Nov. 02, 2001
Ernst-Rudolf Gottfried Weidlich, Kiel, DE;
Heidelberger Druckmaschinen AG, Heidelberg, DE;
Abstract
A method for determining dimensions of an engraved cell formed by an electronic engraving machine, is described. During a test engraving period, test cells are engraved with desired dimensions defining predefined desired tonal values. An engraving element controlled by an engraving control signal is used for engraving a sequence of cells into a rotating printing cylinder resulting in engraved cells. Actual dimensions of the engraved cells represent actual tonal values. A measuring apparatus constructed as a mobile cell measuring instrument is placed on the printing cylinder to be measured. The actual dimensions of the engraved cells are measured and the actual dimensions are compared with the desired dimensions to obtain setting values for calibrating the engraving control signal such that the actual tonal values correspond to the desired tonal values. The actual dimensions of the engraved cells are transmitted wirelessly to a measured value receiver for further processing.