Patent ID: 7866545

Claim:
A method for verifying the origin of bank notes, from an automatic teller, comprising: detecting data characterizing bank notes to be paid out or already paid out using a sensor device for checking the bank notes to be paid out or already paid out for authenticity and/or type and/or state; storing the data of the bank notes to be paid out or already paid out; generating check data for each bank note whose origin is to be verified, by means of the sensor device; comparing the check data of the bank note to be verified with the stored data of the paid out bank notes and ascertaining which data of a paid out bank note has the greatest match with the check data of the bank note to be verified; and verifying the bank note to be previously paid out from the automatic teller if the match between the data of the paid out bank note and the check data of the received bank note exceeds a given measure.