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:
Jun. 05, 2018
Filed:
Dec. 18, 2013
Sensor and method for checking authenticity of valuable documents with a luminscent security feature
Giesecke & Devrient Gmbh, Munich, DE;
Wolfgang Deckenbach, Schechen, DE;
Wolfgang Rauscher, Parkstetten, DE;
Peter Kersten, Feldkirchen Westerham, DE;
GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH, Munich, DE;
Abstract
The invention relates to a method and a sensor for checking a value document which is moved relative to the sensor. The sensor is arranged to detect the luminescence of the value document in two different spectral regions at the same location of detection simultaneously. The two temporal intensity patterns of the first and second luminescences detected in different spectral regions are evaluated relative to each other. This eliminates the motion effects which distort the two intensity patterns in the same or at least very similar manner.