GB1597012A - Detection systems - Google Patents

Detection systems Download PDF

Info

Publication number
GB1597012A
GB1597012A GB19000/78A GB1900078A GB1597012A GB 1597012 A GB1597012 A GB 1597012A GB 19000/78 A GB19000/78 A GB 19000/78A GB 1900078 A GB1900078 A GB 1900078A GB 1597012 A GB1597012 A GB 1597012A
Authority
GB
United Kingdom
Prior art keywords
coils
transmitter
frequency
transceiver
detection
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
Application number
GB19000/78A
Other languages
English (en)
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.)
Nederlandsche Apparatenfabriek NEDAP NV
Original Assignee
Nederlandsche Apparatenfabriek NEDAP NV
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 Nederlandsche Apparatenfabriek NEDAP NV filed Critical Nederlandsche Apparatenfabriek NEDAP NV
Publication of GB1597012A publication Critical patent/GB1597012A/en
Expired 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
    • G08B13/2405—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
    • G08B13/2422—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 acoustic or microwave 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
    • G08B13/2465—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)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Burglar Alarm Systems (AREA)
  • Geophysics And Detection Of Objects (AREA)
GB19000/78A 1977-07-19 1978-05-11 Detection systems Expired GB1597012A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7708012A NL7708012A (nl) 1977-07-19 1977-07-19 Detectiestelsel.

Publications (1)

Publication Number Publication Date
GB1597012A true GB1597012A (en) 1981-09-03

Family

ID=19828910

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19000/78A Expired GB1597012A (en) 1977-07-19 1978-05-11 Detection systems

Country Status (7)

Country Link
US (1) US4308530A (enExample)
BE (1) BE866875A (enExample)
DE (1) DE2819952A1 (enExample)
FR (1) FR2398357A1 (enExample)
GB (1) GB1597012A (enExample)
IT (1) IT1103418B (enExample)
NL (1) NL7708012A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4434240C1 (de) * 1994-09-24 1995-11-30 Norbert H L Dr Ing Koster Dynamische Modulationsvorrichtung

Families Citing this family (63)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4274090A (en) * 1980-02-19 1981-06-16 Knogo Corporation Detection of articles in adjacent passageways
DE3041148A1 (de) * 1980-10-31 1982-09-09 alfasystem GmbH Vertrieb von elektronischen Sicherheitssystemen, 8034 Germering Oeffnungsmelder
GB2110825B (en) * 1981-11-06 1986-04-30 Outokumpu Oy Apparatus for detecting metal objects
DE3244891C2 (de) * 1982-12-04 1985-07-11 Angewandte Digital Elektronik Gmbh, 2051 Brunstorf Einrichtung zur berührungslosen Positionsmessung
NL8204802A (nl) * 1982-12-10 1984-07-02 Nedap Nv Detectieplaatje met niet-lineair circuit voor een detectiestelsel.
FR2553523B1 (fr) * 1983-10-17 1986-06-13 Raibaud Guy Alarme inductive de protection contre le vol par detection de circuits resonnants
US4862160A (en) * 1983-12-29 1989-08-29 Revlon, Inc. Item identification tag for rapid inventory data acquisition system
US4673932A (en) * 1983-12-29 1987-06-16 Revlon, Inc. Rapid inventory data acquistion system
BR8505670A (pt) * 1984-02-15 1986-02-18 Intermodulation & Safety Syst Metodo e sistema para detectar presenca de dispositivo indicados numa zona limitada de investigacao
US4634975A (en) * 1984-09-17 1987-01-06 Progressive Dynamics, Inc. Method and apparatus for producing electromagnetic surveillance fields
US4818855A (en) * 1985-01-11 1989-04-04 Indala Corporation Identification system
SE447428B (sv) * 1985-03-08 1986-11-10 Luxor Ab Anordning for att minska interferensstorningar mellan nerliggande detekteringssystem serskilt i samband med sa kallade butikslarmanleggningar
US4677799A (en) * 1985-12-03 1987-07-07 Minnesota Mining And Manufacturing Company Multi-sectional raceway
US4682154A (en) * 1986-02-12 1987-07-21 E.A.S. Technologies, Inc. Label for use in anti-theft surveillance system
US4799045A (en) * 1986-02-12 1989-01-17 E.A.S. Technologies, Inc. Method of detecting a label used in an anti-theft surveillance system
US4769631A (en) * 1986-06-30 1988-09-06 Sensormatic Electronics Corporation Method, system and apparatus for magnetic surveillance of articles
US4782342A (en) * 1986-08-04 1988-11-01 Walton Charles A Proximity identification system with lateral flux paths
GB8810872D0 (en) * 1988-05-07 1988-06-08 Transalarm Ltd Security system
US5121103A (en) * 1988-07-29 1992-06-09 Knogo Corporation Load isolated article surveillance system and antenna assembly
US5103235A (en) * 1988-12-30 1992-04-07 Checkpoint Systems, Inc. Antenna structure for an electronic article surveillance system
NL8900658A (nl) * 1989-03-17 1990-10-16 Nedap Nv Hoogfrequent winkeldiefstaldetectiesysteem volgens het transmissieprincipe.
JP3100716B2 (ja) * 1991-01-04 2000-10-23 シーエスアイアール 識別装置
US5257009A (en) * 1991-08-26 1993-10-26 Sensormatic Electronics Corporation Reradiating EAS tag with voltage dependent capacitance to provide tag activation and deactivation
WO1993005489A1 (en) * 1991-09-10 1993-03-18 Integrated Silicon Design Pty. Ltd. Identification and telemetry system
AU674498B2 (en) * 1991-09-10 1997-01-02 Integrated Silicon Design Pty Ltd Identification and telemetry system
US5221831A (en) * 1991-11-29 1993-06-22 Indala Corporation Flap-type portal reader
GB9202831D0 (en) * 1992-02-11 1992-03-25 Shanning Laser Systems Ltd Security tag
US5404147A (en) * 1992-10-28 1995-04-04 Sensormatic Electronics Corporation EAS system loop antenna having three loops of different area
NZ314270A (en) * 1992-11-18 1998-06-26 British Tech Group Transponder identification system: interrogator transmits inhibiting signal to disable transponders
FI95514C (fi) * 1994-09-26 1996-02-12 Tuotesuoja Sirpa Jaervensivu K Identifiointimenetelmä sekä identifiointilaitteisto
US5602556A (en) * 1995-06-07 1997-02-11 Check Point Systems, Inc. Transmit and receive loop antenna
DE19631425A1 (de) * 1996-08-06 1998-02-12 Wolf & Beck Gmbh Dr Verfahren zur Identifikation von an Meß- oder Werkzeugmaschinen austauschbar angeordneten Zubehörteilen sowie Identifikator zur Verfahrensdurchführung
WO1998036236A1 (en) 1997-02-13 1998-08-20 Super Dimension Ltd. Six-degree tracking system
US6097183A (en) * 1998-04-14 2000-08-01 Honeywell International Inc. Position detection apparatus with correction for non-linear sensor regions
US6271756B1 (en) 1999-12-27 2001-08-07 Checkpoint Systems, Inc. Security tag detection and localization system
FR2815489B1 (fr) * 2000-10-13 2003-10-10 Sidep Dispositif de controle et/ou d'enregistrement des achats
DE10052689A1 (de) * 2000-10-24 2002-05-02 Metronom Indvermessung Gmbh Kodierelement
DE60232652D1 (de) * 2001-05-04 2009-07-30 Nxp Bv Kommunikationsgerät mit spulenkonfiguration zur kommunikation mit stationären datenträgern
US6970086B2 (en) * 2001-10-25 2005-11-29 The Johns Hopkins University Wide area metal detection (WAMD) system and method for security screening crowds
US20030197653A1 (en) * 2002-04-22 2003-10-23 Russell Barber RFID antenna apparatus and system
US7091858B2 (en) * 2003-01-14 2006-08-15 Sensormatic Electronics Corporation Wide exit electronic article surveillance antenna system
US7420463B2 (en) * 2003-01-14 2008-09-02 Sensormatic Electronics Corporation Wide exit electronic article surveillance antenna system
EP1489572B1 (en) * 2003-06-16 2015-03-25 Tyco Fire & Security GmbH Wide exit electronic article surveillance antenna system
US20050012597A1 (en) * 2003-07-02 2005-01-20 Anderson Peter Traneus Wireless electromagnetic tracking system using a nonlinear passive transponder
US20060132312A1 (en) * 2004-12-02 2006-06-22 Tavormina Joseph J Portal antenna for radio frequency identification
JP2008530844A (ja) * 2005-02-07 2008-08-07 エヌエックスピー ビー ヴィ Ｒｆｉｄシステム、ｒｆｉｄシステムを有するゲート配置およびトランスポンダの検出方法
US20060279406A1 (en) * 2005-06-07 2006-12-14 Robert Stewart Synchronization and adaptive timing method for multiple RFID reader system
EP1808713A3 (de) * 2006-01-11 2007-11-21 Maier & Fabris GmbH Verfahren und Vorrichtung zur Detektion von metallischen Gegenständen im Bereich von bei Personenkontrollen zu untersuchenden Personen
US7859407B2 (en) * 2006-02-21 2010-12-28 Sensormatic Electronics, LLC Wide exit/entrance electronic article surveillance antenna system
WO2009122273A2 (en) 2008-04-03 2009-10-08 Superdimension, Ltd. Magnetic interference detection system and method
WO2009147671A1 (en) 2008-06-03 2009-12-10 Superdimension Ltd. Feature-based registration method
US8218847B2 (en) 2008-06-06 2012-07-10 Superdimension, Ltd. Hybrid registration method
US8508367B2 (en) 2009-09-21 2013-08-13 Checkpoint Systems, Inc. Configurable monitoring device
EP2481035A1 (en) 2009-09-21 2012-08-01 Checkpoint Systems, Inc. Retail product tracking system, method, and apparatus
US10792106B2 (en) 2016-10-28 2020-10-06 Covidien Lp System for calibrating an electromagnetic navigation system
US10446931B2 (en) 2016-10-28 2019-10-15 Covidien Lp Electromagnetic navigation antenna assembly and electromagnetic navigation system including the same
US10751126B2 (en) 2016-10-28 2020-08-25 Covidien Lp System and method for generating a map for electromagnetic navigation
US10517505B2 (en) 2016-10-28 2019-12-31 Covidien Lp Systems, methods, and computer-readable media for optimizing an electromagnetic navigation system
US10638952B2 (en) 2016-10-28 2020-05-05 Covidien Lp Methods, systems, and computer-readable media for calibrating an electromagnetic navigation system
US10615500B2 (en) 2016-10-28 2020-04-07 Covidien Lp System and method for designing electromagnetic navigation antenna assemblies
US10418705B2 (en) 2016-10-28 2019-09-17 Covidien Lp Electromagnetic navigation antenna assembly and electromagnetic navigation system including the same
US10722311B2 (en) 2016-10-28 2020-07-28 Covidien Lp System and method for identifying a location and/or an orientation of an electromagnetic sensor based on a map
US12089902B2 (en) 2019-07-30 2024-09-17 Coviden Lp Cone beam and 3D fluoroscope lung navigation

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO126975B (enExample) 1967-03-30 1973-04-16 John Welsh
US3631442A (en) * 1968-03-22 1971-12-28 Robert E Fearon Anti-shoplifting system
GB1254571A (en) 1968-11-27 1971-11-24 Theodore Hafner Improvements in or relating to the detection of objects in an electro-magnetic field
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
GB1330481A (en) * 1969-07-11 1973-09-19 Minnesota Mining & Mfg Method and apparatus for detecting 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
DE2101879A1 (de) 1969-09-03 1972-07-20 Woerl A Schaltungsanordnung zum Orten vorbestimmter Körper
US3707711A (en) * 1970-04-02 1972-12-26 Peter Harold Cole Electronic surveillance system
US3686564A (en) * 1970-10-08 1972-08-22 Westinghouse Electric Corp Multiple frequency magnetic field technique for differentiating between classes of metal objects
US3696379A (en) * 1970-12-02 1972-10-03 Knogo Corp Apparatus for article theft detection
DE2160041A1 (de) * 1971-12-03 1973-06-07 See International Inc Verfahren und anordnung zur verhinderung von ladendiebstaehlen
US3895368A (en) * 1972-08-09 1975-07-15 Sensormatic Electronics Corp Surveillance system and method utilizing both electrostatic and electromagnetic fields
US3798642A (en) * 1972-09-27 1974-03-19 Microlab Fxr Recognition system
NL161904C (nl) * 1973-04-13 Knogo Corp Diefstal-detectiestelsel.
NL7513348A (nl) * 1975-11-14 1977-05-17 Nedap Nv Identificatiestelsel.
US4135184A (en) * 1977-08-31 1979-01-16 Knogo Corporation Electronic theft detection system for monitoring wide passageways

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4434240C1 (de) * 1994-09-24 1995-11-30 Norbert H L Dr Ing Koster Dynamische Modulationsvorrichtung

Also Published As

Publication number Publication date
IT7809455A0 (it) 1978-05-12
FR2398357B1 (enExample) 1984-08-17
DE2819952A1 (de) 1979-02-08
US4308530A (en) 1981-12-29
NL7708012A (nl) 1979-01-23
IT1103418B (it) 1985-10-14
DE2819952C2 (enExample) 1988-05-05
BE866875A (nl) 1978-11-10
FR2398357A1 (fr) 1979-02-16

Similar Documents

Publication Publication Date Title
GB1597012A (en) Detection systems
US3986182A (en) Multi-zone intrusion detection system
US6400307B2 (en) System and method for intrusion detection using a time domain radar array
US3707711A (en) Electronic surveillance system
CA1110726A (en) Detection system
EP1242985B1 (en) Security tag detection and localization system
US4847595A (en) Alarm system
GB1599120A (en) Detection system
GB2173967A (en) Radio ranging, navigation, and location system with correction for systematic errors
JPH0327959B2 (enExample)
US3846778A (en) Combined ultrasonic and electromagnetic intrusion alarm system
GB2078469A (en) Improvements in surveillance systems for preventing pilferage
US3314066A (en) Method and apparatus for detecting the entrance of an object into a region being monitored
US4887069A (en) Perimeter intrusion detection system with block ranging capabilities
EP0058721A1 (en) Ultrasonic communication and security system
KR20040005562A (ko) 둘러싸인 영역내의 트랜시버 배열에 의해 둘러싸인 영역의개선된 무선 주파수 커버리지
US6535744B1 (en) System for the spatial allocation of at least one transponder to the cells of a detection area, base station, and transponder
EP0242983A2 (en) Transponder based positioning system
GB1145194A (en) A directional radio link
JPH07311887A (ja) 接近検知装置
EP0274889B1 (en) Security sensors
JP4249089B2 (ja) 中継方式障害物検出システムおよび方法
CA1050652A (en) Multi-zone intrusion detection system
JPH10143773A (ja) 万引防止装置
US5101207A (en) Mls-type landing system with centralized means of surveillance

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920511