Patent · US Expired

Device for image inspection

US6449385B1 · kind B1 · utility

10Cited by

4References

8Claims

0Family size

Assignee

Heidelberger Druckmaschinen AG · DE

Inventors

Werner Huber · Witzenhausen, DE
Harald Bucher · Eschelbronn, DE
Wolfgang Geissler · Bad Schönborn, DE
Bernd Kistler · Eppingen, DE
Guenther Uhlig · Dresden, DE
Hans-Peter Grossmann · Dresden, DE

Key dates

Filing date	May 6, 1996
Grant date	Sep 10, 2002
Priority date	—
Expiry date	Feb 14, 2019

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41F33/0036
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A device for inspecting a printed image of a product of a printing press, comprising an image detecting device that furnishes actual image data of the product, and a comparison circuit comparing the actual image data with master image data from a defect-free master image, dividing means for performing a preselectable division of the printed image into inspection areas, and wherein if a defect is detected by the comparison circuit the associated inspection area is designated as being defective.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.