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. 17, 2009
Filed:
May. 21, 2004
Bernd Wunderer, München, DE;
Klaus Thierauf, München, DE;
Norbert Holl, Germering, DE;
Dieter Stein, Holzkirchen, DE;
Bernd Wunderer, München, DE;
Klaus Thierauf, München, DE;
Norbert Holl, Germering, DE;
Dieter Stein, Holzkirchen, DE;
Giesecke & Devrient GmbH, Munich, DE;
Abstract
An apparatus for checking bank notes which scans the bank notes to be checked by means of a semiconductor array, including two linear semiconductor arrays formed of at least three layers which are sensitive to light of different wave-lengths, a first linear semiconductor array scanning the bank notes in a defined range of spectral sensitivity of the semiconductor (e.g. in the visible range), and a second linear semiconductor array scanning the bank notes in a range different therefrom (e.g. of invisible infrared light). From the signals of the two arrays a color image of the bank note and at least one image in the range of invisible light are obtained by suitable combination.