ZA871587B - Method and apparatus for deactivating targets used in electromagnetic type article surveillance systems - Google Patents

Method and apparatus for deactivating targets used in electromagnetic type article surveillance systems

Info

Publication number
ZA871587B
ZA871587B ZA871587A ZA871587A ZA871587B ZA 871587 B ZA871587 B ZA 871587B ZA 871587 A ZA871587 A ZA 871587A ZA 871587 A ZA871587 A ZA 871587A ZA 871587 B ZA871587 B ZA 871587B
Authority
ZA
South Africa
Prior art keywords
deactivating
electromagnetic type
article surveillance
surveillance systems
type article
Prior art date
Application number
ZA871587A
Other languages
English (en)
Inventor
Arthur J Minasy
Peter A Pokalsky
Original Assignee
Knogo 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 Knogo Corp filed Critical Knogo Corp
Publication of ZA871587B publication Critical patent/ZA871587B/xx

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
    • G08B13/2411—Tag deactivation

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)
ZA871587A 1986-03-18 1987-03-05 Method and apparatus for deactivating targets used in electromagnetic type article surveillance systems ZA871587B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/840,904 US4684930A (en) 1986-03-18 1986-03-18 Method and apparatus for deactivating targets used in electromagnetic type article surveillance systems

Publications (1)

Publication Number Publication Date
ZA871587B true ZA871587B (en) 1987-10-28

Family

ID=25283531

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA871587A ZA871587B (en) 1986-03-18 1987-03-05 Method and apparatus for deactivating targets used in electromagnetic type article surveillance systems

Country Status (9)

Country Link
US (1) US4684930A (de)
EP (1) EP0237950B1 (de)
JP (1) JPS62242319A (de)
AU (1) AU574602B2 (de)
BR (1) BR8701215A (de)
CA (1) CA1272264A (de)
DE (1) DE3771750D1 (de)
DK (1) DK129087A (de)
ZA (1) ZA871587B (de)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5448046A (en) * 1987-12-28 1995-09-05 Symbol Technologies, Inc. Arrangement for and method of expediting commercial product transactions at a point-of-sale site
US4968972A (en) * 1989-06-30 1990-11-06 Security Tag Systems, Inc. Conversion of bias strip in a frequency-dividing-transponder tag into a tripole bar magnet to deactivate the tag
US5151843A (en) * 1989-12-08 1992-09-29 Minnesota Mining And Manufacturing Company Sensitizer for ferromagnetic markers used with electromagnetic article surveillance systems
US5187462A (en) * 1990-02-15 1993-02-16 Minnesota Mining And Manufacturing Company Multiple magnet assembly for use with electromagnetic article surveillance markers
SE500627C2 (sv) * 1990-03-20 1994-08-01 Esselte Meto Int Gmbh Handscanner anordnad att optiskt avläsa en streckkod på en vara
US5170045A (en) * 1990-03-20 1992-12-08 Esselte Meto Eas Int. Ab Price tag deactivator
US5063367A (en) * 1990-09-04 1991-11-05 Eastman Kodak Company Method and apparatus for producing complex magnetization patterns in hard magnetic materials
US5808285A (en) 1990-09-17 1998-09-15 Metrologic Instruments, Inc. Portable code symbol reading device with one-way wireless data packet transmission link to base unit employing condition-dependent acoustical signalling for data packet reception acknowledgement
US5126720A (en) * 1991-01-17 1992-06-30 Knogo Corporation Method and apparatus for deactivating magnetic targets
US5225807A (en) * 1991-09-16 1993-07-06 Knogo Corporation Method and apparatus for sensitizing and desensitizing targets for electronic article surveillance systems
CA2056060A1 (en) * 1991-11-22 1993-05-23 Manfred A. A. Lupke Method of modifying corrugated or ribbed pipe to have a smooth outer wall
US5341125A (en) * 1992-01-15 1994-08-23 Sensormatic Electronics Corporation Deactivating device for deactivating EAS dual status magnetic tags
US5285182A (en) * 1992-09-03 1994-02-08 Minnesota Mining And Manufacturing Company Desensitizing apparatus for electromagnetic article surveillance system
US5410296A (en) * 1992-10-06 1995-04-25 Minnesota Mining And Manufacturing Company Magnetic tag deactivator for pre-existing check-out counters
US5376923A (en) * 1992-12-14 1994-12-27 Minnesota Mining And Manufacturing Company On the counter deactivator
CA2184172A1 (en) * 1994-03-10 1995-09-14 Peter J. Zarembo Deactivating device for magnetic markers in an electronic article surveillance system
US5594420A (en) * 1995-02-02 1997-01-14 Sensormatic Electronics Corporation Rotating magnet array for deactivating EAS markers
US5625339A (en) * 1996-01-08 1997-04-29 Minnesota Mining And Manufacturing Company Apparatus for changing the status of magnetic markers in an electronic article surveillance system
US5990791A (en) * 1997-10-22 1999-11-23 William B. Spargur Anti-theft detection system
US6057763A (en) * 1998-04-10 2000-05-02 3M Innovative Properties Company Method and apparatus for activating and deactivating electromagnetic article surveillance markers
US5920262A (en) * 1998-06-19 1999-07-06 Sensormatic Electronics Corporation Omnidirectional deactivator for magnetic labels or tags of EAS systems
JP4090600B2 (ja) * 1998-12-08 2008-05-28 富士通株式会社 商品情報管理システム
DE60123756T2 (de) 2000-07-17 2007-08-23 NHK Spring Co., Ltd., Yokohama Magnetischer markierer und seine herstellung
JP3520871B2 (ja) * 2002-01-31 2004-04-19 ソニー株式会社 着磁方法及び着磁装置
DE10307515A1 (de) * 2003-02-21 2004-09-02 Checkpoint Systems International Gmbh Vorrichtung und Verfahren zum Aktivieren und Deaktivieren magnetischer Sicherungsetiketten
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
JP2006227984A (ja) * 2005-02-18 2006-08-31 Lintec Corp 磁性検知タグ失効装置及び磁性検知タグ失効システム
US7728706B2 (en) * 2007-03-16 2010-06-01 Ogden Jr Orval D Material magnetizer systems
ITUB20160988A1 (it) * 2016-02-23 2017-08-23 Bassi Group Int S R L Attrezzo per la magnetizzazione di plastoferrite flessibile in fogli o nastro

Family Cites Families (17)

* 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
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
GB1436711A (en) * 1973-02-09 1976-05-26 London Transport Executive Magnetic encoding devices
US4075618A (en) * 1976-07-15 1978-02-21 Minnesota Mining And Manufacturing Company Magnetic asymmetric antipilferage marker
US4326198A (en) * 1976-08-18 1982-04-20 Knogo Corporation Method and apparatus for the promotion of selected harmonic response signals in an article detection system
US4118693A (en) * 1977-05-09 1978-10-03 Knogo Corporation Method and apparatus for producing uniform electromagnetic fields in an article detection system
US4260881A (en) * 1979-05-04 1981-04-07 Glen Peterson Electronic status determining label
DE3014667A1 (de) * 1980-04-16 1981-10-29 Werner A. 4300 Essen Reiter Verfahren zum deaktivieren eines sicherungsstreifen s sowie deaktivator und sicherungsstreifen
US4384281A (en) * 1980-10-31 1983-05-17 Knogo Corporation Theft detection apparatus using saturable magnetic targets
JPS59119461U (ja) * 1983-01-31 1984-08-11 ティーディーケイ株式会社 磁性体ロ−ル
US4499444A (en) * 1983-05-20 1985-02-12 Minnesota Mining And Manufacturing Company Desensitizer for ferromagnetic markers used with electromagnetic article surveillance systems
US4665387A (en) * 1983-07-13 1987-05-12 Knogo Corporation Method and apparatus for target deactivation and reactivation in article surveillance systems
SE440002C (sv) * 1983-11-11 1987-07-13 Antonson Avery Ab Larmanordning for avkennande av inforandet av en med speciell markering forsedd detalj i ett for detta avkennande speciellt alstrat magnetfelt
US4568921A (en) * 1984-07-13 1986-02-04 Knogo Corporation Theft detection apparatus and target and method of making same

Also Published As

Publication number Publication date
BR8701215A (pt) 1987-12-29
CA1272264A (en) 1990-07-31
EP0237950A1 (de) 1987-09-23
DK129087A (da) 1987-09-19
AU574602B2 (en) 1988-07-07
AU7008987A (en) 1987-09-24
JPS62242319A (ja) 1987-10-22
DE3771750D1 (de) 1991-09-05
DK129087D0 (da) 1987-03-13
JPH0442807B2 (de) 1992-07-14
EP0237950B1 (de) 1991-07-31
US4684930A (en) 1987-08-04

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