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DE60004874D1 - Verfahren zum unterscheiden zwischen halbweichem und weichem magnetischem material - Google Patents

Verfahren zum unterscheiden zwischen halbweichem und weichem magnetischem material

Info

Publication number
DE60004874D1
DE60004874D1 DE60004874T DE60004874T DE60004874D1 DE 60004874 D1 DE60004874 D1 DE 60004874D1 DE 60004874 T DE60004874 T DE 60004874T DE 60004874 T DE60004874 T DE 60004874T DE 60004874 D1 DE60004874 D1 DE 60004874D1
Authority
DE
Germany
Prior art keywords
soft magnetic
semi
magnetic material
soft
article
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE60004874T
Other languages
English (en)
Other versions
DE60004874T2 (de
Inventor
Lintelo Johannes Te
John Fisher
Paul Robertson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bekaert NV SA
Original Assignee
Bekaert NV SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from EP99203618A external-priority patent/EP1096451A1/de
Application filed by Bekaert NV SA filed Critical Bekaert NV SA
Publication of DE60004874D1 publication Critical patent/DE60004874D1/de
Application granted granted Critical
Publication of DE60004874T2 publication Critical patent/DE60004874T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2465—Aspects related to the EAS system, e.g. system components other than tags
    • G08B13/2482—EAS methods, e.g. description of flow chart of the detection procedure
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2405—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used
    • G08B13/2408—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used using ferromagnetic tags
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2428—Tag details
    • G08B13/2437—Tag layered structure, processes for making layered tags
    • G08B13/2442—Tag materials and material properties thereof, e.g. magnetic material details

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Soft Magnetic Materials (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Magnetic Heads (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
DE60004874T 1999-11-01 2000-10-23 Verfahren zum unterscheiden zwischen halbweichem und weichem magnetischem material Expired - Lifetime DE60004874T2 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP99203618A EP1096451A1 (de) 1999-11-01 1999-11-01 Verfahren zur halbweichen Sicherheitseinrichtungsdetektion
EP99203618 1999-11-01
EP00201820 2000-05-25
EP00201820 2000-05-25
PCT/EP2000/010722 WO2001033525A1 (en) 1999-11-01 2000-10-23 Method for distinguishing between semi-soft and soft magnetic material

Publications (2)

Publication Number Publication Date
DE60004874D1 true DE60004874D1 (de) 2003-10-02
DE60004874T2 DE60004874T2 (de) 2004-07-08

Family

ID=26072273

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60004874T Expired - Lifetime DE60004874T2 (de) 1999-11-01 2000-10-23 Verfahren zum unterscheiden zwischen halbweichem und weichem magnetischem material

Country Status (7)

Country Link
US (1) US6707295B1 (de)
EP (1) EP1226566B1 (de)
AT (1) ATE248416T1 (de)
AU (1) AU1516401A (de)
DE (1) DE60004874T2 (de)
ES (1) ES2206323T3 (de)
WO (1) WO2001033525A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1290428B1 (it) * 1997-03-21 1998-12-03 Ausimont Spa Grassi fluorurati
GB0519971D0 (en) 2005-09-30 2005-11-09 Rue De Int Ltd Method and apparatus for detecting a magnetic feature on an article
WO2007049168A2 (en) 2005-10-28 2007-05-03 Koninklijke Philips Electronics, N.V. Method and apparatus for spectral computed tomography
DE102005062016A1 (de) * 2005-12-22 2007-07-05 Vacuumschmelze Gmbh & Co. Kg Pfandmarkierung, Pfandgut und Rücknahmegerät für Pfandgut sowie Verfahren zur automatischen Pfandkontrolle

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0295085B1 (de) 1987-06-08 1996-11-06 Esselte Meto International GmbH Magnetische Vorrichtungen verwendende Artikelermittlung und/oder -identifizierung
US4791412A (en) 1988-01-28 1988-12-13 Controlled Information Corporation Magnetic article surveillance system and method
US5204526A (en) 1988-02-08 1993-04-20 Fuji Electric Co., Ltd. Magnetic marker and reading and identifying apparatus therefor
GB8824965D0 (en) 1988-10-25 1988-11-30 Emi Plc Thorn Magnetic identifier
DE4200082A1 (de) * 1992-01-03 1993-07-08 Minnesota Mining & Mfg Vorrichtung und verfahren zum erkennen eines magnetisierbaren markierungselementes
US5189397A (en) * 1992-01-09 1993-02-23 Sensormatic Electronics Corporation Method and apparatus for determining the magnitude of a field in the presence of an interfering field in an EAS system
EP0798681A1 (de) * 1996-03-29 1997-10-01 Sensormatic Electronics Corporation Impuls- Abfragesignal in einem harmonische Frequenzen empfangendes Warenüberwachungssytem
EP0951702B1 (de) 1996-12-12 2008-06-11 N.V. Bekaert S.A. Erkennung und überprüfung von gegenständen

Also Published As

Publication number Publication date
WO2001033525A1 (en) 2001-05-10
ATE248416T1 (de) 2003-09-15
EP1226566B1 (de) 2003-08-27
DE60004874T2 (de) 2004-07-08
EP1226566A1 (de) 2002-07-31
US6707295B1 (en) 2004-03-16
AU1516401A (en) 2001-05-14
ES2206323T3 (es) 2004-05-16

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