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FI870734A0 - Magnetiskt oevervakningssystem foer foeremaol, foerfarande och kodad markoer. - Google Patents

Magnetiskt oevervakningssystem foer foeremaol, foerfarande och kodad markoer.

Info

Publication number
FI870734A0
FI870734A0 FI870734A FI870734A FI870734A0 FI 870734 A0 FI870734 A0 FI 870734A0 FI 870734 A FI870734 A FI 870734A FI 870734 A FI870734 A FI 870734A FI 870734 A0 FI870734 A0 FI 870734A0
Authority
FI
Finland
Prior art keywords
oevervakningssystem
markoer
magnetiskt
kodad
foeremaol
Prior art date
Application number
FI870734A
Other languages
English (en)
Other versions
FI870734A (fi
Inventor
Jon N Weaver
Original Assignee
Controlled Information Corp
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 Controlled Information Corp filed Critical Controlled Information Corp
Publication of FI870734A0 publication Critical patent/FI870734A0/fi
Publication of FI870734A publication Critical patent/FI870734A/fi

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
    • G08B13/2405—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
    • G08B13/2405—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
    • G08B13/2414—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 inductive tags
    • G08B13/2417—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 inductive tags having a radio frequency identification chip
    • 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)
FI870734A 1985-06-26 1987-02-20 Magnetiskt oevervakningssystem foer foeremaol, foerfarande och kodad markoer. FI870734A (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/748,997 US4622542A (en) 1985-06-26 1985-06-26 Magnetic article surveillance system, method and coded marker
PCT/US1986/001359 WO1987000324A1 (en) 1985-06-26 1986-06-24 Magnetic article surveillance system, method and coded marker

Publications (2)

Publication Number Publication Date
FI870734A0 true FI870734A0 (fi) 1987-02-20
FI870734A FI870734A (fi) 1987-02-20

Family

ID=25011795

Family Applications (1)

Application Number Title Priority Date Filing Date
FI870734A FI870734A (fi) 1985-06-26 1987-02-20 Magnetiskt oevervakningssystem foer foeremaol, foerfarande och kodad markoer.

Country Status (8)

Country Link
US (1) US4622542A (fi)
EP (1) EP0228467A4 (fi)
AU (1) AU584433B2 (fi)
CA (1) CA1232647A (fi)
DK (1) DK95787A (fi)
ES (3) ES8802098A1 (fi)
FI (1) FI870734A (fi)
WO (1) WO1987000324A1 (fi)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4779076A (en) * 1987-05-20 1988-10-18 Controlled Information Corp. Deactivatable coded marker and magnetic article surveillance system
DE3741780A1 (de) * 1987-12-10 1989-06-29 Karl Harms Handels Gmbh & Co K Magnetisches diebstahl- bzw. einbruch-sicherungssystem sowie hierfuer geeignetes sensor-metallelement
US4791412A (en) * 1988-01-28 1988-12-13 Controlled Information Corporation Magnetic article surveillance system and method
US5159347A (en) * 1989-11-14 1992-10-27 E-Systems, Inc. Micromagnetic circuit
DE4200082A1 (de) * 1992-01-03 1993-07-08 Minnesota Mining & Mfg Vorrichtung und verfahren zum erkennen eines magnetisierbaren markierungselementes
JPH06282229A (ja) * 1993-01-27 1994-10-07 Unitika Ltd 盗難防止ラベル
GB9302757D0 (en) * 1993-02-11 1993-03-24 Esselte Meto Int Gmbh Method and system for detecting a marker
ES2078852B1 (es) * 1993-08-02 1996-07-16 Azkoyen Ind Sa "procedimiento y dispositivo para la medicion y caracterizacion, a alta velocidad, de materiales magneticos"
EP1039412A1 (en) * 1994-11-17 2000-09-27 Minnesota Mining And Manufacturing Company Remote identification system
CA2183697A1 (en) * 1995-08-23 1997-02-24 David P. Klaehn Electronic article-surveillance apparatus and method of operating same
US6084513A (en) * 1997-09-26 2000-07-04 Innovative Control Systems Method and apparatus for tracking a patient
KR20010075197A (ko) * 1998-09-18 2001-08-09 스프레이그 로버트 월터 내장 가능하고 원격 확인 가능한 확인 시스템
US7974680B2 (en) * 2003-05-29 2011-07-05 Biosense, Inc. Hysteresis assessment for metal immunity
US7433728B2 (en) * 2003-05-29 2008-10-07 Biosense, Inc. Dynamic metal immunity by hysteresis
US7321228B2 (en) * 2003-07-31 2008-01-22 Biosense Webster, Inc. Detection of metal disturbance in a magnetic tracking system
JP2005181173A (ja) 2003-12-22 2005-07-07 Toshiba Corp 磁性体量検出装置

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3292080A (en) * 1964-11-23 1966-12-13 Emmanuel M Trikilis System and method for preventing pilferage by detection of magnetic fields
US3559201A (en) * 1967-01-03 1971-01-26 Gen Atronics Corp Security system
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
US3790945A (en) * 1968-03-22 1974-02-05 Stoplifter Int Inc Open-strip ferromagnetic marker and method and system for 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
US3765007A (en) * 1969-07-11 1973-10-09 Minnesota Mining & Mfg Method and apparatus for detecting at a distance the status and identity of objects
US3820090A (en) * 1970-01-26 1974-06-25 Vlinsky M Bistable magnetic device
DE2152406C3 (de) * 1971-10-21 1974-09-26 Institut Dr. Friedrich Foerster Pruefgeraetebau, 7410 Reutlingen Anordnung zum Bestimmender Aktivität von Versuchstieren
BE791039A (fr) * 1971-11-08 1973-05-07 Lewis Security Syst Ltd Systemes de securite
US3820104A (en) * 1972-12-15 1974-06-25 Stop Loss Inc Method and system for detecting an object within a magnetic field interrogation zone
US3820103A (en) * 1972-12-15 1974-06-25 Stop Loss Inc System for detecting an object within a magnetic field
US3938125A (en) * 1974-02-20 1976-02-10 Minnesota Mining And Manufacturing Company Antipilferage system and marker therefor
US3983552A (en) * 1975-01-14 1976-09-28 American District Telegraph Company Pilferage detection systems
US4134538A (en) * 1976-03-18 1979-01-16 La Societe Metalimphy Process and apparatus for identification of objects
US4298862A (en) * 1979-04-23 1981-11-03 Allied Chemical Corporation Amorphous antipilferage marker
US4309697A (en) * 1980-10-02 1982-01-05 Sensormatic Electronics Corporation Magnetic surveillance system with odd-even harmonic and phase discrimination
US4384281A (en) * 1980-10-31 1983-05-17 Knogo Corporation Theft detection apparatus using saturable magnetic targets
US4413254A (en) * 1981-09-04 1983-11-01 Sensormatic Electronics Corporation Combined radio and magnetic energy responsive surveillance marker and system
US4489313A (en) * 1982-09-01 1984-12-18 Sensormatic Electronics Corporation Signal direction determining system and directional loop antenna array therefor

Also Published As

Publication number Publication date
ES556942A0 (es) 1988-04-01
ES8802098A1 (es) 1988-04-01
DK95787D0 (da) 1987-02-25
DK95787A (da) 1987-02-25
AU5927386A (en) 1987-01-08
EP0228467A4 (en) 1987-11-09
CA1232647A (en) 1988-02-09
EP0228467A1 (en) 1987-07-15
ES8801745A1 (es) 1988-03-01
ES557787A0 (es) 1988-03-01
FI870734A (fi) 1987-02-20
ES8801743A1 (es) 1988-03-01
WO1987000324A1 (en) 1987-01-15
ES557786A0 (es) 1988-03-01
US4622542A (en) 1986-11-11
AU584433B2 (en) 1989-05-25

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Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: CONTROLLED INFORMATION CORPORATION