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1. (WO2018121882) METHOD AND DEVICE FOR DETECTING A SECURITY THREAD IN A VALUE DOCUMENT

Pub. No.:    WO/2018/121882    International Application No.:    PCT/EP2017/001445
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Sat Dec 23 00:59:59 CET 2017
IPC: G07D 7/004
G07D 7/04
Applicants: GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH
Inventors: FEULNER, Johannes
SCHMALZ, Steffen
Title: METHOD AND DEVICE FOR DETECTING A SECURITY THREAD IN A VALUE DOCUMENT
Abstract:
The invention relates to a method for detecting a security thread in a value document, in which magnetic data is used for locations on the value document, said magnetic data representing a magnetic property of the value document on the location, test locations on the value document being determined using the location, and from the test locations, a straight line is determined, arranged along or on the at least one the test location and represents a position of the security thread.