# US 2014/0191035 A1 · Checking Arrangement for Value-Document Check > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0191035 A1 - Document ID: US20140191035A1 - Status: Published application - Kind: A1 - Application number: 14/237,383 - Filed: 2012-08-08 - Published: 2014-07-10 - Earliest claimed: 2011-08-10 - Assignees: Giesecke & Devrient GmbH - Inventors: Elisabeth Paul; Jurgen Schutzmann - Web page: https://patentgrep.com/patent/US20140191035A1 ## CPC - G06K 7/087: {flux-sensitive, e.g. magnetic, detectors (G06K7/10336 takes precedence)} - G07D 7/04: Testing magnetic properties of the materials thereof, e.g. by detection of magnetic imprint (G07D7/01 takes precedence) - H01F 13/00: Apparatus or processes for magnetising or demagnetising ({devices for holding workpieces using magnetic or electric force acting directly on the workpieces B23Q3/15} ; for degaussing ships B63G9/06; for clocks or watches G04D9/00; {recording or erasing of information on magnetic record carriers G11B5/00} ; demagnetising arrangements for colour television H04N9/29) - G06K: GRAPHICAL DATA READING (image or video recognition or understanding G06V); PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS - G07D: HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING - H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES ## Abstract A testing configuration for testing a security document includes a security element, having a high-coercivity magnetic material and a low-coercivity magnetic material, a device comprising such a test configuration and to a relevant test method. The high- and low- coercivity magnetic materials of the security element are magnetized in a first direction by the interaction of first and second magnet pair units, and subsequently the low-coercivity magnetic material is remagnetized in a second magnetization direction by means of the second magnet pair unit. The magnet pair units are arranged with respect to one another in such a closely adjacent manner along the transport path of the security document that the first magnet field strength is greater than the magnet field strength provided by the first magnet pair unit alone and is greater than the magnet field strength provided by the second magnet pair unit alone. ## Claims ### Claim at position 1 1-15. (canceled) ### Claim 16 A checking arrangement for checking a value document having a security element, wherein the checking arrangement comprises the following along a transport path of the value document: a magnetization device for magnetizing the security element, which comprises a first magnet-pair device and a second magnet-pair device along the transport path; and a detector device for the detection of magnetic signals that emanate from the security element; wherein the first and second magnet-pair devices are arranged along the transport path adjacent to each other so close that through the interaction of the first magnet-pair device and the second magnet-pair device there is provided in a first section along the transport path a first magnetic field of a first magnetic field strength which is greater than the magnetic field strength provided in the first section by the first magnet-pair device alone and which is greater than the magnetic field strength provided in the first section by the second magnet-pair device alone. ### Claim 17 (depends on 16) The checking arrangement according to claim 16, wherein the first magnetic field strength is greater by at least 5% than a magnetic field strength provided in the first section by the first magnet-pair device alone and then a magnetic field strength provided in the first section with the second magnet-pair device alone. ### Claim 18 (depends on 16) The checking arrangement according to claim 16, wherein by the first and second magnet-pair devices there is provided in a second section, which is arranged after the first section along the transport path, a second magnetic field of a second magnetic field strength that is smaller than the first magnetic field strength, wherein the second magnetic field is oriented antiparallel to the first magnetic field. ### Claim 19 (depends on 18) The checking arrangement according to claim 18, wherein the first and second magnet-pair devices are configured and arranged in such a way that the ratio between the first magnetic field strength and the second magnetic field strength lies between 3:1 and 15:1. ### Claim 20 (depends on 16) The checking arrangement according to claim 16, wherein the first magnet-pair device comprises first magnets that are arranged on opposing sides of the transport path in such a way that their magnetic poles of a first polarity are facing each other; and the second magnet-pair device comprises second magnets that are arranged on opposing sides of the transport path in such a way that their magnetic poles of a second polarity inverse to the first polarity are facing each other. ### Claim 21 (depends on 20) The checking arrangement according to claim 20, wherein the distance that the first magnets of the first magnet-pair device and the second magnets of the second magnet-pair device are respectively spaced apart in the direction perpendicular to the transport plane of the value document amounts to at least 2 mm. ### Claim 22 (depends on 16) The checking arrangement according to claim 16, wherein the distance between the first magnet-pair device and the second magnet-pair device along the transport path is smaller than or equal to 30 mm. ### Claim 23 (depends on 16) The checking arrangement according to claim 16, wherein the distance between the first magnet-pair device and the second magnet-pair device along the transport path is larger than zero. ### Claim 24 (depends on 16) The checking arrangement according to claim 16, wherein the first and second magnet-pair devices are configured and arranged in such a way that the direction of the first magnetic field extends substantially parallel to the transport plane of the value document, substantially parallel or antiparallel to the transport direction of the value document along the transport path. ### Claim 25 (depends on 16) The checking arrangement according to claim 16, wherein the first and second magnet-pair devices are configured and arranged in such a way that in the first section the component of the first magnetic field that is oriented in a direction perpendicular to the transport plane of the value document amounts to no more than 10% of that component of the first magnetic field that is oriented parallel to the transport plane of the value document. ### Claim 26 (depends on 16) The checking arrangement according to claim 16, wherein the checking arrangement is configured for checking a security element that comprises a high-coercive magnetic material of a first coercive field strength and, where applicable, a low-coercive magnetic material of a second coercive field strength; and the magnetization device is adapted to provide, through the interaction of the first magnet-pair device and the second magnet-pair device, the first magnetic field having a first magnetic field strength which is greater than the first coercive field strength, and to provide the second magnetic field having a second magnetic field strength that is smaller than the first coercive field strength and is greater than the second coercive field strength. ### Claim 27 A checking method for checking a value document having a security element that comprises a high-coercive magnetic material of a first coercive field strength and, where applicable, a low-coercive magnetic material of a second coercive field strength, having the steps: providing a first magnetic field of a first magnetic field strength which is greater than the first coercive field strength in a first section along the transport path through interaction of a first magnet-pair device and a second magnet-pair device that are arranged along the transport path adjacent to each other so close that the first magnetic field strength is greater than the magnetic field strength provided in the first section by the first magnet-pair device alone and is greater than the magnetic field strength provided in the first section by the second magnet-pair device alone; first magnetizing of the security element by the first magnetic field in such a way that the high-coercive magnetic material, and the low-coercive magnetic material that might be present, are aligned in a first magnetization direction; second magnetizing of the security element by a second magnetic field that is provided substantially by the second magnet-pair device, in order to align the low-coercive magnetic material that might be present into a second magnetization direction, wherein the second magnetic field has a second magnetic field strength that is smaller than the first coercive field strength and greater than the second coercive field strength; and detecting of magnetic signals that emanate from the security element after the first and second magnetizing. ### Claim 28 (depends on 27) The checking method according to claim 27, wherein for providing the first magnetic field the first and the second magnet-pair device interact in such a way that the first magnetic field strength is greater by at least 5% than a magnetic field strength provided in the first section with the first magnet-pair device alone. ### Claim 29 (depends on 27) The checking method according to claim 27, wherein the value document is checked by means of a checking arrangement including the following along a transport path of the value document: a magnetization device for magnetizing the security element, which comprises a first magnet-pair device and a second magnet-pair device along the transport path; and a detector device for the detection of magnetic signals that emanate from the security element; wherein the first and second magnet-pair devices are arranged along the transport path adjacent to each other so close that through the interaction of the first magnet-pair device and the second magnet-pair device there is provided in a first section along the transport path a first magnetic field of a first magnetic field strength which is greater than the magnetic field strength provided in the first section by the first magnet-pair device alone and which is greater than the magnetic field strength provided in the first section by the second magnet-pair device alone. ### Claim 30 (depends on 16) An apparatus comprising a checking arrangement according to claim 16, wherein the apparatus is configured as a value document processing apparatus for checking value documents.