DK490887A - Magnetisk paavirkelig afmaerkningsbrik til genstandsovervaagning med to magnetiske tilstande - Google Patents

Magnetisk paavirkelig afmaerkningsbrik til genstandsovervaagning med to magnetiske tilstande

Info

Publication number
DK490887A
DK490887A DK490887A DK490887A DK490887A DK 490887 A DK490887 A DK 490887A DK 490887 A DK490887 A DK 490887A DK 490887 A DK490887 A DK 490887A DK 490887 A DK490887 A DK 490887A
Authority
DK
Denmark
Prior art keywords
magnetic
object monitoring
conditions
significant marking
signature
Prior art date
Application number
DK490887A
Other languages
Danish (da)
English (en)
Other versions
DK490887D0 (da
Inventor
Samuel Montean
Original Assignee
Minnesota Mining & Mfg
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
Application filed by Minnesota Mining & Mfg filed Critical Minnesota Mining & Mfg
Publication of DK490887D0 publication Critical patent/DK490887D0/da
Publication of DK490887A publication Critical patent/DK490887A/da

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
    • 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
    • G08B13/2411—Tag deactivation
    • 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
    • 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)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Burglar Alarm Systems (AREA)
DK490887A 1986-09-19 1987-09-18 Magnetisk paavirkelig afmaerkningsbrik til genstandsovervaagning med to magnetiske tilstande DK490887A (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/909,467 US4746908A (en) 1986-09-19 1986-09-19 Dual-status, magnetically imagable article surveillance marker

Publications (2)

Publication Number Publication Date
DK490887D0 DK490887D0 (da) 1987-09-18
DK490887A true DK490887A (da) 1988-03-20

Family

ID=25427269

Family Applications (1)

Application Number Title Priority Date Filing Date
DK490887A DK490887A (da) 1986-09-19 1987-09-18 Magnetisk paavirkelig afmaerkningsbrik til genstandsovervaagning med to magnetiske tilstande

Country Status (12)

Country Link
US (1) US4746908A (xx)
EP (1) EP0260831B1 (xx)
JP (1) JP2869065B2 (xx)
KR (1) KR960002143B1 (xx)
AU (1) AU589796B2 (xx)
CA (1) CA1277384C (xx)
DE (1) DE3784822T2 (xx)
DK (1) DK490887A (xx)
ES (1) ES2038991T3 (xx)
HK (1) HK149094A (xx)
MX (1) MX161738A (xx)
ZA (1) ZA877050B (xx)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4829288A (en) * 1987-11-30 1989-05-09 Minnesota Mining And Manufacturing Company Economic, multi-directionally responsive marker for use in electronic article surveillance systems
US4884063A (en) * 1988-02-01 1989-11-28 Minnesota Mining And Manufacturing Company Dual status magnetic marker having magnetically biasable flux collectors for use in electronic article surveillance systems
US4825197A (en) * 1988-02-01 1989-04-25 Minnesota Mining And Manufacturing Company Dual status magnetic marker having magnetically biasable flux collectors for us in electronic article surveillance systems
GB8810178D0 (en) * 1988-04-29 1988-06-02 Scient Generics Ltd Antipilferage systems
AU624379B2 (en) * 1988-05-06 1992-06-11 Roger Frederick Bailey Optical sorting apparatus
GB8818849D0 (en) * 1988-08-09 1988-09-14 Emi Plc Thorn Electromagnetic identification system
US4967185A (en) * 1989-08-08 1990-10-30 Minnesota Mining And Manufacturing Company Multi-directionally responsive, dual-status, magnetic article surveillance marker having continuous keeper
US5151843A (en) * 1989-12-08 1992-09-29 Minnesota Mining And Manufacturing Company Sensitizer for ferromagnetic markers used with electromagnetic article surveillance systems
WO1992012401A2 (en) * 1991-01-04 1992-07-23 Scientific Generics Limited Indicating devices and apparatus
US5285182A (en) * 1992-09-03 1994-02-08 Minnesota Mining And Manufacturing Company Desensitizing apparatus for electromagnetic article surveillance system
US5580664A (en) * 1992-12-23 1996-12-03 Minnesota Mining And Manufacturing Company Dual status thin-film eas marker having multiple magnetic layers
US5432499A (en) * 1993-05-27 1995-07-11 Minnesota Mining And Manufacturing Company Collector type article surveillance marker with continuous keeper
AU667431B2 (en) * 1993-06-11 1996-03-21 Sensormatic Electronics Corporation Multidirectional surveillance marker
NL9302171A (nl) * 1993-12-13 1995-07-03 Dutch A & A Trading Bv Transponder voor een detectiesysteem.
US5405702A (en) * 1993-12-30 1995-04-11 Minnesota Mining And Manufacturing Company Method for manufacturing a thin-film EAS and marker
US5949318A (en) * 1994-08-10 1999-09-07 Sensormatic Electronics Corporation Apparatus for activating/deactivating sensors used with EAS tags
EP0713195B1 (en) * 1994-11-17 2000-10-04 Minnesota Mining And Manufacturing Company Remote identification system
US5699047A (en) 1996-01-19 1997-12-16 Minnesota Mining And Manufacturing Co. Electronic article surveillance markers for direct application to optically recorded media
DE19642225A1 (de) * 1996-10-12 1998-04-16 Esselte Meto Int Gmbh Sicherungselement für die elektronische Artikelsicherung und Verfahren zur Herstellung eines Sicherungselementes
GB9800064D0 (en) * 1998-01-05 1998-03-04 Sentec Ltd Uni-directional magnetic tag
US6154137A (en) 1998-06-08 2000-11-28 3M Innovative Properties Company Identification tag with enhanced security
JP2002522849A (ja) * 1998-08-14 2002-07-23 スリーエム イノベイティブ プロパティズ カンパニー 無線周波数識別システムのアプリケーション
EP1110163B1 (en) 1998-08-14 2003-07-02 3M Innovative Properties Company Application for a radio frequency identification system
EP1901251B1 (en) * 1998-08-14 2010-09-29 3M Innovative Properties Company Applications for radio frequency identification systems
US6424262B2 (en) 1998-08-14 2002-07-23 3M Innovative Properties Company Applications for radio frequency identification systems
US6525661B2 (en) * 1999-02-26 2003-02-25 3M Innovative Properties Company Electronic article surveillance markers for optically recorded media
US6447294B1 (en) 1999-12-13 2002-09-10 William Raymond Price Locator for lost dentures
US20040069851A1 (en) * 2001-03-13 2004-04-15 Grunes Mitchell B. Radio frequency identification reader with removable media
US20050032151A1 (en) * 2001-06-05 2005-02-10 Eisenberg Peter M. Methods of managing the transfer and use of data
US7588185B2 (en) * 2001-06-07 2009-09-15 3M Innovative Properties Company RFID data collection and use
US6943689B2 (en) * 2003-11-24 2005-09-13 B&G Plastics, Inc. Electronic article surveillance marker assembly
US7230537B2 (en) * 2004-04-15 2007-06-12 Matsushita Electric Industrial Co., Ltd. Product identification system using IC tag units, and a digital content management system
US7068172B2 (en) * 2004-05-21 2006-06-27 Xiao Hui Yang Method and apparatus for deactivating an EAS device
ES2268964B1 (es) 2005-04-21 2008-04-16 Micromag 2000, S.L. "etiqueta magnetica activable/desactivable basada en microhilo magnetico y metodo de obtencion de la misma".
US20090212952A1 (en) * 2008-02-22 2009-08-27 Xiao Hui Yang Method and apparatus for de-activating eas markers

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR763681A (fr) * 1933-11-10 1934-05-04 Procédé de repérage des objets par modification d'un champ magnétique
US3747086A (en) * 1968-03-22 1973-07-17 Shoplifter International Inc Deactivatable ferromagnetic marker for detection of objects having marker secured thereto and method and system of using same
US3665449A (en) * 1969-07-11 1972-05-23 Minnesota Mining & Mfg Method and apparatus for detecting at a distance the status and identity of objects
US3983552A (en) * 1975-01-14 1976-09-28 American District Telegraph Company Pilferage detection systems
DE2931932A1 (de) * 1979-08-07 1981-02-26 Maecker Elan Schaltelemente Markierungselement zur feststellung von gegenstaenden in einem ueberwachungsbereich, insbesondere zur verhinderung von ladendiebstaehlen
DE3244430A1 (de) * 1982-12-01 1984-11-15 Knogo S.A., Baudour Verfahren und vorrichtung zur herstellung eines sicherungsstreifens
CA1234891A (en) * 1983-10-20 1988-04-05 746278 Ontario Limited D/B/A I.D. Systems Canada Security system label
US4710754A (en) * 1986-09-19 1987-12-01 Minnesota Mining And Manufacturing Company Magnetic marker having switching section for use in electronic article surveillance systems

Also Published As

Publication number Publication date
KR880004330A (ko) 1988-06-07
JPS6383899A (ja) 1988-04-14
ZA877050B (en) 1989-04-26
DE3784822D1 (de) 1993-04-22
AU589796B2 (en) 1989-10-19
DK490887D0 (da) 1987-09-18
HK149094A (en) 1995-01-06
US4746908A (en) 1988-05-24
EP0260831B1 (en) 1993-03-17
ES2038991T3 (es) 1993-08-16
MX161738A (es) 1990-12-20
DE3784822T2 (de) 1993-08-12
EP0260831A3 (en) 1989-07-19
JP2869065B2 (ja) 1999-03-10
EP0260831A2 (en) 1988-03-23
CA1277384C (en) 1990-12-04
KR960002143B1 (ko) 1996-02-13
AU7654087A (en) 1988-03-24

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Legal Events

Date Code Title Description
AHB Application shelved due to non-payment