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:
Jul. 03, 2012
Filed:
Apr. 11, 2006
Thomas Giering, Kirchseeon, DE;
Helmut Steidl, München, DE;
Dieter Stein, Holzkirchen, DE;
Klaus Thierauf, München, DE;
Thomas Giering, Kirchseeon, DE;
Helmut Steidl, München, DE;
Dieter Stein, Holzkirchen, DE;
Klaus Thierauf, München, DE;
Giesecke & Devrient GmbH, Munich, DE;
Abstract
The invention relates to an apparatus and a method for automatically checking sheet-shaped documents of value. According to the present invention a simply constructed measuring apparatus can be obtained, by the measuring apparatus evaluating measuring values e.g. at least two measuring frequencies and the position of one or a plurality of discrete measuring tracks being determined in such a way that at least the presence of two different not visible spectral properties of a predetermined type of authentic documents of value can be checked.