Bank note processing machine and method for identifying forged bank notes
AssigneeGiesecke & Devrient GmbH
InventorsSteffen Schmalz, Norbert Holl
Life of this patent
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Abstract
The invention relates to a bank note processing machine and a method for recognizing forged bank notes. With the bank note processing machine according to the invention and the method for recognizing forged bank notes according to the invention the starting point is that the bank notes to be checked are compared with comparative data that are derived from authentic bank notes and known forgeries, additional comparative data of new types of forgeries being used and the bank notes to be checked being compared with both the comparative data and the additional comparative data for new types of forgeries, so as to determine whether a forged bank note is present.
Claims8
A method for recognizing forged bank notes with a bank note processing machine, the method comprising the steps of:
- processing the bank notes with the bank note processing machine;
- checking the bank notes with comparative data stored by the bank note processing machine and derived from authentic bank notes and known forgeries, wherein the comparative data is produced by capturing features selected from the group consisting of printing inks with special optical and/or magnetic properties, metallic or magnetic security threads, paper used for the bank notes being free of brighteners, information contained in an electrical circuit, bank note size, printing pattern, colors, optical appearance, and combinations thereof;
- and
- using additional comparative data for new types of forgeries, which are not recognized based on the comparative data derived from authentic bank notes and known forgeries;
- wherein the bank notes to be checked are compared with both the comparative data and the additional comparative data for new types of forgeries so as to determine whether a forged bank note is present.
A bank note processing machine comprising a control device, a non-volatile memory and a sensor device, for recognizing forged bank notes, wherein the bank notes to be checked are captured by the sensor device and data are derived, which are compared with comparative data stored in the non-volatile memory, which are derived from authentic bank notes and known forgeries, wherein the comparative data is produced by capturing features selected from the group consisting of printing inks with special optical and/or magnetic properties, metallic or magnetic security threads, paper used for the bank notes being free of brighteners, information contained in an electrical circuit, bank note size, printing pattern, colors, optical appearance, and combinations thereof,
- and further wherein in the non-volatile memory additional comparative data for new types of forgeries, which are not recognized based on the comparative data derived from authentic bank notes and known forgeries, are stored, the data of the sensor device for the bank notes to be checked being compared by the control device with both the comparative data and the additional comparative data for new types of forgeries, so as to determine whether a forged bank note is present.
A method for recognizing forged bank notes with a bank note processing machine, the method comprising the steps of:
- processing the bank notes with the bank note processing machine;
- checking the bank notes with comparative data stored by the bank note processing machine and derived from authentic bank notes and known forgeries, wherein the comparative data is produced by capturing features related to physical properties of bank notes;
- and
- using additional comparative data for new types of forgeries, which are not recognized based on the comparative data derived from authentic bank notes and known forgeries;
- wherein the bank notes to be checked are compared with both the comparative data and the additional comparative data for new types of forgeries so as to determine whether a forged bank note is present.
Dependencies are inferred from the claim text.