DE3715387C2 - - Google Patents

Info

Publication number
DE3715387C2
DE3715387C2 DE3715387A DE3715387A DE3715387C2 DE 3715387 C2 DE3715387 C2 DE 3715387C2 DE 3715387 A DE3715387 A DE 3715387A DE 3715387 A DE3715387 A DE 3715387A DE 3715387 C2 DE3715387 C2 DE 3715387C2
Authority
DE
Germany
Prior art keywords
magnetic
shielding
field
shield
elements
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
DE3715387A
Other languages
German (de)
English (en)
Other versions
DE3715387A1 (de
Inventor
Richard L. Boca Raton Fla. Us Copeland
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.)
Sensormatic Electronics Corp
Original Assignee
Sensormatic Electronics 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 Sensormatic Electronics Corp filed Critical Sensormatic Electronics Corp
Publication of DE3715387A1 publication Critical patent/DE3715387A1/de
Application granted granted Critical
Publication of DE3715387C2 publication Critical patent/DE3715387C2/de
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
    • G01V3/104—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils using several coupled or uncoupled coils
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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
    • G08B13/2468—Antenna in system and the related signal processing
    • G08B13/2474—Antenna or antenna activator geometry, arrangement or layout

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Signal Processing (AREA)
  • Burglar Alarm Systems (AREA)
  • Geophysics And Detection Of Objects (AREA)
DE19873715387 1986-06-30 1987-05-08 Anlage zur magnetischen artikelueberwachung, insbesondere fuer die diebstahlsicherung Granted DE3715387A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/880,138 US4769631A (en) 1986-06-30 1986-06-30 Method, system and apparatus for magnetic surveillance of articles

Publications (2)

Publication Number Publication Date
DE3715387A1 DE3715387A1 (de) 1988-01-14
DE3715387C2 true DE3715387C2 (enFirst) 1992-04-23

Family

ID=25375585

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873715387 Granted DE3715387A1 (de) 1986-06-30 1987-05-08 Anlage zur magnetischen artikelueberwachung, insbesondere fuer die diebstahlsicherung

Country Status (9)

Country Link
US (1) US4769631A (enFirst)
JP (1) JPH0782592B2 (enFirst)
AR (1) AR241468A1 (enFirst)
BR (1) BR8703291A (enFirst)
CA (1) CA1266311A (enFirst)
DE (1) DE3715387A1 (enFirst)
FR (1) FR2613083B1 (enFirst)
GB (1) GB2194414B (enFirst)
SE (1) SE502490C2 (enFirst)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011115761A1 (de) 2011-10-12 2013-04-18 Volkswagen Ag Verfahren für einen Funkschlüssel eines Fahrzeuges sowie entsprechenden Funkschlüssel und System für ein Fahrzeug

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4859991A (en) * 1987-08-28 1989-08-22 Sensormatic Electronics Corporation Electronic article surveillance system employing time domain and/or frequency domain analysis and computerized operation
DE3828691B4 (de) * 1987-08-28 2004-11-25 Sensormatic Electronics Corp., Boca Raton Elektronische Artikelüberwachungsanlage
DE3844848C2 (de) * 1987-08-28 1995-11-23 Sensormatic Electronics Corp Antenne für eine Anlage zur Artikelüberwachung
US5103234A (en) * 1987-08-28 1992-04-07 Sensormatic Electronics Corporation Electronic article surveillance system
GB8808933D0 (en) * 1988-04-15 1988-05-18 Scient Generics Ltd Antipilferage system
US5121103A (en) * 1988-07-29 1992-06-09 Knogo Corporation Load isolated article surveillance system and antenna assembly
US5003291A (en) * 1988-12-27 1991-03-26 Strom Olsen John O Ferromagnetic fibers having use in electronical article surveillance and method of making same
GB9004431D0 (en) * 1990-02-28 1990-04-25 Scient Generics Ltd Detection system for security systems
US5170045A (en) * 1990-03-20 1992-12-08 Esselte Meto Eas Int. Ab Price tag deactivator
US5051726A (en) * 1990-08-14 1991-09-24 Sensormatic Electronics Corporation Electronic article surveillance system with antenna array for enhanced field falloff
US5218371A (en) * 1990-08-14 1993-06-08 Sensormatic Electronics Corporation Antenna array for enhanced field falloff
US5130697A (en) * 1990-10-30 1992-07-14 Sensormatic Electronics Corporation Method and apparatus for shaping a magnetic field
US5083111A (en) * 1990-11-26 1992-01-21 Sensormatic Electronics Corporation Jamming apparatus for electronic article surveillance systems
WO1992017866A1 (en) * 1991-04-03 1992-10-15 Integrated Silicon Design Pty. Ltd. Article sorting system
US5341125A (en) * 1992-01-15 1994-08-23 Sensormatic Electronics Corporation Deactivating device for deactivating EAS dual status magnetic tags
IT1265721B1 (it) * 1992-11-11 1996-12-02 Alessandro Manneschi Metal detector ad avvolgimenti multipolari con l'eliminazione di effetti neutralizzanti
US5664582A (en) * 1992-11-17 1997-09-09 Szymaitis; Dennis W. Method for detecting, distinguishing and counting objects
US5456718A (en) * 1992-11-17 1995-10-10 Szymaitis; Dennis W. Apparatus for detecting surgical objects within the human body
US5373301A (en) * 1993-01-04 1994-12-13 Checkpoint Systems, Inc. Transmit and receive antenna having angled crossover elements
USD348189S (en) 1993-03-16 1994-06-28 Sensormatic Electronics Corporation Electronic removal device for a security tag
GB9321633D0 (en) * 1993-10-20 1993-12-08 Transfer Technology Ltd Improvements in and relating to metal detectors and methods for making same
USD362605S (en) 1994-07-28 1995-09-26 Sensormatic Electronics Corporation Electronic instrument for removing security tags
CA2148749A1 (en) * 1994-08-30 1996-03-01 Joerg W. Zschirnt Apparatus for deactivation of electronic article surveillance tags
USD361704S (en) 1994-09-07 1995-08-29 Sensormatic Electronics Corporation Electronic instrument for removing security tags
US5627516A (en) * 1994-09-28 1997-05-06 Sensormatic Electronics Corporation Electronic article surveillance input configuration control system employing expert system techniques for dynamic optimization
US5602556A (en) * 1995-06-07 1997-02-11 Check Point Systems, Inc. Transmit and receive loop antenna
US5871100A (en) * 1995-12-22 1999-02-16 Rayovac Corporation Security battery package
US5586657A (en) * 1995-12-22 1996-12-24 Rayovac Corporation Security blister package
US5914692A (en) * 1997-01-14 1999-06-22 Checkpoint Systems, Inc. Multiple loop antenna with crossover element having a pair of spaced, parallel conductors for electrically connecting the multiple loops
US5867101A (en) * 1997-02-03 1999-02-02 Sensormatic Electronics Corporation Multi-phase mode multiple coil distance deactivator for magnetomechanical EAS markers
DE19726986A1 (de) * 1997-06-25 1999-01-07 Meto International Gmbh Vorrichtung zur Überwachung von elektronischen gesicherten Artikeln in einer Überwachungszone
US5990791A (en) * 1997-10-22 1999-11-23 William B. Spargur Anti-theft detection system
US6397661B1 (en) 1998-12-30 2002-06-04 University Of Kentucky Research Foundation Remote magneto-elastic analyte, viscosity and temperature sensing apparatus and associated methods of sensing
US6393921B1 (en) 1999-05-13 2002-05-28 University Of Kentucky Research Foundation Magnetoelastic sensing apparatus and method for remote pressure query of an environment
US6359444B1 (en) 1999-05-28 2002-03-19 University Of Kentucky Research Foundation Remote resonant-circuit analyte sensing apparatus with sensing structure and associated method of sensing
EP1221151B1 (en) * 1999-10-08 2004-07-14 Activerf Limited Improvements relating to security
US6688162B2 (en) 2000-10-20 2004-02-10 University Of Kentucky Research Foundation Magnetoelastic sensor for characterizing properties of thin-film/coatings
US6639402B2 (en) 2001-01-31 2003-10-28 University Of Kentucky Research Foundation Temperature, stress, and corrosive sensing apparatus utilizing harmonic response of magnetically soft sensor element (s)
US20130181701A1 (en) * 2011-07-27 2013-07-18 Stephen L. L. Galbraith Nondestructive inspection apparatus and method for evaluating cold working effectiveness at fastener holes
CA2936044C (en) * 2016-07-11 2019-10-22 Greg Watkin Combination media display and electronic article surveillance pedestal

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1436900A (en) * 1972-05-26 1976-05-26 Heytow S Metal detector
US3938044A (en) * 1973-11-14 1976-02-10 Lichtblau G J Antenna apparatus for an electronic security system
NL7708012A (nl) * 1977-07-19 1979-01-23 Nedap Nv Detectiestelsel.
US4251808A (en) * 1979-11-15 1981-02-17 Lichtblau G J Shielded balanced loop antennas for electronic security systems
US4660025A (en) * 1984-11-26 1987-04-21 Sensormatic Electronics Corporation Article surveillance magnetic marker having an hysteresis loop with large Barkhausen discontinuities
US4686516A (en) * 1984-11-26 1987-08-11 Sensormatic Electronics Corporation Method, system and apparatus for use in article surveillance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011115761A1 (de) 2011-10-12 2013-04-18 Volkswagen Ag Verfahren für einen Funkschlüssel eines Fahrzeuges sowie entsprechenden Funkschlüssel und System für ein Fahrzeug

Also Published As

Publication number Publication date
GB2194414B (en) 1990-05-02
GB2194414A (en) 1988-03-02
AR241468A1 (es) 1992-07-31
SE8700957L (sv) 1987-12-31
DE3715387A1 (de) 1988-01-14
CA1266311A (en) 1990-02-27
SE8700957D0 (sv) 1987-03-09
BR8703291A (pt) 1988-03-15
FR2613083A1 (fr) 1988-09-30
JPH0782592B2 (ja) 1995-09-06
US4769631A (en) 1988-09-06
FR2613083B1 (fr) 1989-12-22
GB8713568D0 (en) 1987-07-15
SE502490C2 (sv) 1995-10-30
JPS63118900A (ja) 1988-05-23

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8125 Change of the main classification

Ipc: G08B 13/22

D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: SENSORMATIC ELECTRONICS CORP., BOCA RATON, FLA., U