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. 03, 2025
Filed:
Dec. 13, 2021
Giesecke+devrient Currency Technology Gmbh, Munich, DE;
Stephan Huber, Munich, DE;
Christian Schuller, Erharting, DE;
GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH, Munich, DE;
Abstract
A sensor element for checking the authenticity of a flat data carrier, in particular a banknote, with a spin resonance feature, includes a magnetic core with an air gap into which the flat data carrier is insertable for authenticity checking, an element for generating a static magnetic flux in the air gap, a modulation coil for generating a time-varying magnetic field in the air gap, and a resonator for exciting the spin resonance feature of the data carrier to be checked and for capturing the signal response of the spin resonance feature. The magnetic core of the sensor element is at least partially formed of an eddy current damping magnetic material.