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:
Dec. 17, 2013
Filed:
May. 27, 2009
Benedikt Rauscher, Oberursel, DE;
Thomas Caspari, Griesheim, DE;
Hendrik Steinmann, Worms, DE;
Rainer Boenick, Altgarz, DE;
Benedikt Rauscher, Oberursel, DE;
Thomas Caspari, Griesheim, DE;
Hendrik Steinmann, Worms, DE;
Rainer Boenick, Altgarz, DE;
Pepperl + Fuchs GmbH, Mannheim, DE;
Abstract
The invention relates to a method and a device for checking print products of the same kind, more particularly printed sheets of paper of the same kind, which are transported by a conveying device. For this purpose, during a teach-in phase, test images are recorded at a plurality of points on the print product by means of a digital camera. The test images recorded, or parts thereof, are analyzed with respect to their characteristic information, and the test image having the most distinct characteristic information is selected as the reference image. For the purpose of checking print products of the same kind, the subsequent print products of the same kind are checked by recording at least one image at a position corresponding to the reference image and by comparing it with the image data of the reference image. Such checking is carried out by means of a device comprising a digital camera for recording test images of the print product, an illuminating device for illuminating the print product, an input for supplying a position signal, and a control and evaluation unit for controlling the digital camera and the illuminating device and for analyzing image data produced by the digital camera. The invention further relates to a computer program and to a computer program product.