CA947398A - Article surveillance method and system - Google Patents

Article surveillance method and system

Info

Publication number
CA947398A
CA947398A CA015,387A CA15387A CA947398A CA 947398 A CA947398 A CA 947398A CA 15387 A CA15387 A CA 15387A CA 947398 A CA947398 A CA 947398A
Authority
CA
Canada
Prior art keywords
article surveillance
surveillance method
article
surveillance
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
CA015,387A
Other languages
English (en)
Inventor
John Welsh
Richard Vaughan
Lloyd L. Gordon
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
Application granted granted Critical
Publication of CA947398A publication Critical patent/CA947398A/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
    • G08B13/2428—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
    • 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
    • G08B13/2471—Antenna signal processing by receiver or emitter
    • 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
    • G08B13/2477—Antenna or antenna activator circuit
    • 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
    • G08B13/2488—Timing issues, e.g. synchronising measures to avoid signal collision, with multiple emitters or a single emitter and receiver
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S206/00—Special receptacle or package
    • Y10S206/807—Tamper proof

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Burglar Alarm Systems (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Electronic Switches (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
CA015,387A 1967-03-30 1968-03-20 Article surveillance method and system Expired CA947398A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US63925067A 1967-03-30 1967-03-30

Publications (1)

Publication Number Publication Date
CA947398A true CA947398A (en) 1974-05-14

Family

ID=24563333

Family Applications (1)

Application Number Title Priority Date Filing Date
CA015,387A Expired CA947398A (en) 1967-03-30 1968-03-20 Article surveillance method and system

Country Status (18)

Country Link
US (1) US4063229A (ja)
JP (1) JPS5230836B1 (ja)
AT (1) AT311217B (ja)
BE (1) BE713027A (ja)
BR (1) BR6897870D0 (ja)
CA (1) CA947398A (ja)
CH (1) CH497009A (ja)
DE (1) DE1766065C3 (ja)
DK (1) DK126143C (ja)
ES (1) ES352178A1 (ja)
FR (1) FR1565745A (ja)
GB (1) GB1227141A (ja)
IE (1) IE32556B1 (ja)
IL (1) IL29665A (ja)
LU (1) LU55805A1 (ja)
NL (1) NL159802B (ja)
NO (1) NO126975B (ja)
SE (1) SE343418B (ja)

Families Citing this family (128)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1292380A (en) * 1969-04-02 1972-10-11 Unisearch Ltd Electronic surveillance systems
FR2161773B1 (ja) * 1971-11-29 1975-08-29 See International
AT340038B (de) * 1975-02-21 1977-11-25 Rodler Ing Hans Messanordnung zur ermittlung von biologischen messparametern
US4069472A (en) * 1975-12-25 1978-01-17 Tokyo Shibaura Electric Co., Ltd. Foreground subject-identifying apparatus
NL7708012A (nl) * 1977-07-19 1979-01-23 Nedap Nv Detectiestelsel.
GB2012524A (en) * 1977-12-09 1979-07-25 Lintech Instr Ltd Transponders
ZA7994B (en) * 1978-01-11 1980-01-30 Tag Radionics Ltd Presence sensing system
DE2820840C3 (de) * 1978-05-12 1982-01-21 Siemens AG, 1000 Berlin und 8000 München Anordnung zur Absicherung von Gefahrenbereichen in Untertagebetrieben
DE2844242C2 (de) * 1978-10-11 1983-01-05 CAS Computer-Ausrüstungen und Supplies GmbH, 4000 Düsseldorf Überwachungssystem zur Sicherung von in einem Geschäft oder Kaufhaus ausliegenden Waren gegen Diebstahl
US4254868A (en) * 1979-02-05 1981-03-10 Sensormatic Electronics Corporation Enclosure for a security tag and extraction implement
US4299870A (en) * 1980-05-27 1981-11-10 Sensormatic Electronics Corporation Reusable theft deterrent security tag
CA1190970A (en) * 1980-10-09 1985-07-23 Harold B. Williams Dual frequency anti-theft system
US4471344A (en) * 1980-10-09 1984-09-11 Ici Americas Inc. Dual frequency anti-theft system
US4318090A (en) * 1980-10-27 1982-03-02 Sensormatic Electronics Corporation Apparatus for deactivating a surveillance tag
US4481428A (en) * 1981-05-19 1984-11-06 Security Tag Systems, Inc. Batteryless, portable, frequency divider useful as a transponder of electromagnetic radiation
US4413254A (en) * 1981-09-04 1983-11-01 Sensormatic Electronics Corporation Combined radio and magnetic energy responsive surveillance marker and system
US4700179A (en) * 1982-04-12 1987-10-13 Ici Americas Inc. Crossed beam high frequency anti-theft system
EP0091581B1 (en) * 1982-04-12 1988-05-18 Ici Americas Inc. Crossed beam high frequency anti-theft system
US4574274A (en) * 1982-08-09 1986-03-04 Sensormatic Electronics Corporation Non-contact electrostatic deactivator
DE3234601A1 (de) * 1982-09-17 1984-03-22 Siemens AG, 1000 Berlin und 8000 München Anordnung zur markierung von personen und objekten
US4642640A (en) * 1983-04-25 1987-02-10 Sensormatic Electronics Corporation Signal receptor-reradiator and surveillance tag using the same
DE3472019D1 (en) * 1983-08-01 1988-07-14 Ici America Inc Electronic article surveillance system
CA1236542A (en) * 1983-08-02 1988-05-10 Harold B. Williams Electronic article surveillance system having microstrip antennas
US4567983A (en) * 1984-04-09 1986-02-04 Handleman Company Theft resistant cassette holder
US4572369A (en) * 1984-04-09 1986-02-25 Handleman Company Theft resistant cassette holder
AT405697B (de) * 1984-04-23 1999-10-25 Lichtblau G J Deaktivierbarer resonanzschaltkreis
US4583083A (en) * 1984-06-28 1986-04-15 Bogasky John J Checkout station to reduce retail theft
US4745401A (en) * 1985-09-09 1988-05-17 Minnesota Mining And Manufacturing Company RF reactivatable marker for electronic article surveillance system
DE3604307C2 (de) * 1986-02-12 1995-04-06 Baumer Electric Ag Verfahren zur Sicherung von Gegenständen gegen Entnahme durch unbefugte Personen
US4783646A (en) * 1986-03-07 1988-11-08 Kabushiki Kaisha Toshiba Stolen article detection tag sheet, and method for manufacturing the same
US4746830A (en) * 1986-03-14 1988-05-24 Holland William R Electronic surveillance and identification
US4736196A (en) * 1986-11-18 1988-04-05 Cost-Effective Monitoring Systems, Co. Electronic monitoring system
FR2609813B1 (fr) * 1987-01-19 1989-03-03 Midi Robois Procede et systeme d'identification et/ou de localisation, et balise pour la mise en oeuvre dudit procede
SE456953B (sv) * 1987-02-20 1988-11-14 Aros Avancerad Butikskontroll Foerfaringssaett foer anbringande av stoeldskydd paa varor, varvid faerg innehaallande magnetiserbara partiklar anbringas paa varorna
US4853692A (en) * 1987-12-07 1989-08-01 Wolk Barry M Infant security system
US5447779A (en) * 1990-08-06 1995-09-05 Tokai Electronics Co., Ltd. Resonant tag and method of manufacturing the same
US5695860A (en) * 1990-08-06 1997-12-09 Tokai Electronics Co., Ltd. Resonant tag and method of manufacturing the same
US5589251A (en) * 1990-08-06 1996-12-31 Tokai Electronics Co., Ltd. Resonant tag and method of manufacturing the same
US5059950A (en) * 1990-09-04 1991-10-22 Monarch Marking Systems, Inc. Deactivatable electronic article surveillance tags, tag webs and method of making tag webs
US5257009A (en) * 1991-08-26 1993-10-26 Sensormatic Electronics Corporation Reradiating EAS tag with voltage dependent capacitance to provide tag activation and deactivation
US5206626A (en) * 1991-12-24 1993-04-27 Knogo Corporation Stabilized article surveillance responder
US5218342A (en) * 1992-04-06 1993-06-08 Mccrackin Richard J Method for the production of novel secure magnetic tapes
US5280286A (en) * 1992-06-12 1994-01-18 Smart Tag Systems, Inc. Surveillance and identification system antennas
US5241923A (en) * 1992-07-23 1993-09-07 Pole/Zero Corporation Transponder control of animal whereabouts
US5349332A (en) * 1992-10-13 1994-09-20 Sensormatic Electronics Corportion EAS system with requency hopping
US5285194A (en) * 1992-11-16 1994-02-08 Sensormatic Electronics Corporation Electronic article surveillance system with transition zone tag monitoring
NL9301299A (nl) * 1993-07-23 1995-02-16 Nedap Nv Ruisvermindering in identificatiesystemen.
US5541574A (en) * 1993-12-22 1996-07-30 Palomar Technologies Corporation Transponder system for communicating with a vehicle tire
US5608379A (en) * 1994-05-20 1997-03-04 Sensormatic Electronics Corporation Deactivatable EAS tag
JPH0872898A (ja) 1994-08-31 1996-03-19 Sensormatic Electronics Corp 電子式物品監視タッグ
US5517195A (en) * 1994-09-14 1996-05-14 Sensormatic Electronics Corporation Dual frequency EAS tag with deactivation coil
US5528223A (en) * 1994-09-27 1996-06-18 Sensormatic Electronics Corporation Video game cartridge including a security device and method of deterring theft of same
US5499015A (en) * 1994-09-28 1996-03-12 Sensormatic Electronics Corp. Magnetomechanical EAS components integrated with a retail product or product packaging
US5714935A (en) * 1995-02-03 1998-02-03 Sensormatic Electronics Corporation Article of merchandise with concealed EAS marker and EAS warning logo
US5844485A (en) * 1995-02-03 1998-12-01 Sensormatic Electronics Corporation Article of merchandise with EAS and associated indicia
US5541577A (en) * 1995-05-26 1996-07-30 Consolidated Graphic Materials, Inc. Electromagnetic asset protection system
US5946404A (en) * 1995-06-01 1999-08-31 Silent Witness Enterprises Ltd. Audio/video surveillance and recording system
US5589844A (en) * 1995-06-06 1996-12-31 Flash Comm, Inc. Automatic antenna tuner for low-cost mobile radio
AU705213B2 (en) * 1995-06-06 1999-05-20 Terion, Inc. Determining propagating and clear frequency in wireless data communications network
US5765112A (en) * 1995-06-06 1998-06-09 Flash Comm. Inc. Low cost wide area network for data communication using outbound message specifying inbound message time and frequency
US5734963A (en) * 1995-06-06 1998-03-31 Flash Comm, Inc. Remote initiated messaging apparatus and method in a two way wireless data communications network
US5721783A (en) * 1995-06-07 1998-02-24 Anderson; James C. Hearing aid with wireless remote processor
US7511621B1 (en) 1995-08-31 2009-03-31 Intermec Ip Corp. High-performance mobile power antennas
US5908135A (en) * 1995-11-21 1999-06-01 Bradford Company Sleeve pack
US5593025A (en) * 1995-12-15 1997-01-14 Display Technologies, Inc. Foldable jewelry card
US6266592B1 (en) 1996-10-11 2001-07-24 Trw Inc. Apparatus and method for sensing a rearward facing child seat using beat frequency detection
US6446049B1 (en) 1996-10-25 2002-09-03 Pole/Zero Corporation Method and apparatus for transmitting a digital information signal and vending system incorporating same
US6064308A (en) * 1996-10-25 2000-05-16 Pole/Zero Corporation RF signaling system and system for controlling the whereabouts of animals using same
US6025725A (en) * 1996-12-05 2000-02-15 Massachusetts Institute Of Technology Electrically active resonant structures for wireless monitoring and control
US5844482A (en) * 1997-05-20 1998-12-01 Guthrie; Warren E. Tagging system using motion detector
US5942977A (en) * 1997-08-13 1999-08-24 Ludwig Kipp Radio transponder
US5990791A (en) * 1997-10-22 1999-11-23 William B. Spargur Anti-theft detection system
US6166643A (en) * 1997-10-23 2000-12-26 Janning; Joseph J. Method and apparatus for controlling the whereabouts of an animal
US6154137A (en) 1998-06-08 2000-11-28 3M Innovative Properties Company Identification tag with enhanced security
WO2000005674A2 (en) * 1998-07-24 2000-02-03 Intermec Ip Corp. Communicating with radio frequency identification tags within shaped electromagnetic fields
US6424262B2 (en) 1998-08-14 2002-07-23 3M Innovative Properties Company Applications for radio frequency identification systems
ES2198938T3 (es) 1998-08-14 2004-02-01 3M Innovative Properties Company Aplicacion para un sistema de identificacion de radiofrecuencia.
ATE376232T1 (de) 1998-08-14 2007-11-15 3M Innovative Properties Co Anwendungen für radiofrequenzidentifikationssysteme
CA2338522C (en) 1998-08-14 2009-04-07 3M Innovative Properties Company Radio frequency identification systems applications
US6057765A (en) * 1998-10-07 2000-05-02 Research Electronics International Non-linear junction detector
GB2345823A (en) * 1998-11-16 2000-07-19 Kevin Smith Theft detection apparatus
US6501390B1 (en) 1999-01-11 2002-12-31 International Business Machines Corporation Method and apparatus for securely determining aspects of the history of a good
EP1047011A3 (en) * 1999-04-21 2002-07-24 Supersensor (Proprietary) Limited Electronic RF identification systems
US6163259A (en) * 1999-06-04 2000-12-19 Research Electronics International Pulse transmitting non-linear junction detector
GB2381078B (en) * 1999-06-04 2003-10-01 Res Electronics Internat Pulse transmitting non-linear junction detector
WO2001017893A2 (en) 1999-09-09 2001-03-15 Shur-Flo Pump Manufacturing Company, Inc. Food containers with transponders
GB9927372D0 (en) * 1999-11-20 2000-01-19 Ncr Int Inc Self-service terminal
US6275156B1 (en) * 2000-02-07 2001-08-14 Westvaco Corporation EAS ready paperboard
JP3557990B2 (ja) * 2000-03-09 2004-08-25 ソニーケミカル株式会社 情報記録タグ
WO2001090849A2 (en) * 2000-05-22 2001-11-29 Avery Dennison Corporation Trackable files and systems for using the same
US6975834B1 (en) * 2000-10-03 2005-12-13 Mineral Lassen Llc Multi-band wireless communication device and method
KR20030011069A (ko) * 2000-12-15 2003-02-06 이스턴 리본 앤 롤 콥. 페이퍼 롤의 절취를 방지하는 방법
AUPR850501A0 (en) * 2001-10-29 2001-11-29 Tagsys Australia Pty. Ltd. Electronic label interrogation through incidental electromagnetic radiation
US7588185B2 (en) 2001-06-07 2009-09-15 3M Innovative Properties Company RFID data collection and use
US7389918B2 (en) * 2001-10-23 2008-06-24 Ncr Corporation Automatic electronic article surveillance for self-checkout
US6681989B2 (en) * 2002-01-15 2004-01-27 International Business Machines Corporation Inventory control and point-of-sale system and method
US6752837B2 (en) 2002-06-28 2004-06-22 Hewlett-Packard Development Company, L.P. Security tags with a reversible optical indicator
US6927692B1 (en) 2002-09-05 2005-08-09 American Greetings Corporation RF inventory system
US6667092B1 (en) 2002-09-26 2003-12-23 International Paper Company RFID enabled corrugated structures
US20040070504A1 (en) * 2002-10-14 2004-04-15 Brollier Brian W. Semi-covert RFID enabled containers
US7151979B2 (en) * 2002-11-26 2006-12-19 International Paper Company System and method for tracking inventory
US20060058913A1 (en) * 2002-11-26 2006-03-16 Andersen Scott P Inventory tracking
US20050012597A1 (en) * 2003-07-02 2005-01-20 Anderson Peter Traneus Wireless electromagnetic tracking system using a nonlinear passive transponder
US7152804B1 (en) 2004-03-15 2006-12-26 Kovlo, Inc. MOS electronic article surveillance, RF and/or RF identification tag/device, and methods for making and using the same
US7034687B2 (en) * 2004-04-29 2006-04-25 Comm-Engines Error-avoiding anti-theft surveillance system
DE102004030229A1 (de) * 2004-06-23 2006-01-19 Infineon Technologies Ag Funkabfragbarer Datenträger
US7286053B1 (en) 2004-07-31 2007-10-23 Kovio, Inc. Electronic article surveillance (EAS) tag/device with coplanar and/or multiple coil circuits, an EAS tag/device with two or more memory bits, and methods for tuning the resonant frequency of an RLC EAS tag/device
US7145453B2 (en) * 2004-09-02 2006-12-05 The Dow Chemical Company Harmonic wireless transponder sensor and method
JP4919645B2 (ja) * 2005-10-04 2012-04-18 株式会社ソニー・コンピュータエンタテインメント 電子回路
US7808226B1 (en) 2005-10-26 2010-10-05 Research Electronics International Line tracing method and apparatus utilizing non-linear junction detecting locator probe
US7212008B1 (en) 2005-11-03 2007-05-01 Barsumian Bruce R Surveillance device detection utilizing non linear junction detection and reflectometry
US20070187496A1 (en) * 2006-02-10 2007-08-16 Andersen Scott P Inventory tracking system and method
CA2690153A1 (en) * 2007-06-08 2008-12-18 Checkpoint Systems, Inc. Dynamic eas detection system and method
US8933790B2 (en) * 2007-06-08 2015-01-13 Checkpoint Systems, Inc. Phase coupler for rotating fields
US8400281B2 (en) * 2007-11-14 2013-03-19 Kaonetics Technologies, Inc. Wireless identification system using a directed-energy device as a tag reader
US20100097219A1 (en) * 2008-10-16 2010-04-22 Sidnei Dal Gallo Article with theft-deterring feature
WO2010068511A1 (en) * 2008-11-25 2010-06-17 Kovio, Inc. Tunable capacitors
AU2010295352B2 (en) 2009-09-21 2014-12-04 Checkpoint Systems, Inc. Retail product tracking system, method, and apparatus
US8508367B2 (en) 2009-09-21 2013-08-13 Checkpoint Systems, Inc. Configurable monitoring device
US8378826B2 (en) * 2009-10-02 2013-02-19 Checkpoint Systems, Inc. Key device for monitoring systems
FI20105330A0 (fi) * 2010-03-31 2010-03-31 Valtion Teknillinen Epälineaarinen resonoiva anturi ja menetelmä
DE102010022967A1 (de) * 2010-06-08 2011-12-08 Johannes Giesser Messerfabrik Gmbh System und Verfahren zur Überwachung von Werkzeugen
EP2423847B1 (en) * 2010-08-27 2013-03-27 Psion Inc. System and method for multiple reading interface with a simple RFID antenna
US20120126825A1 (en) * 2010-11-22 2012-05-24 Boris Leonid Sheikman Sensor assembly and methods of measuring the proximity of a component to an emitter
CN104603633B (zh) * 2012-07-12 2017-08-29 康奈尔大学 用于在室内环境中定位对象的方法和系统
KR101963260B1 (ko) * 2012-12-21 2019-03-28 삼성전기주식회사 적층형 페라이트 시트, 이를 이용한 안테나 장치 및 그 제조 방법
WO2020180847A1 (en) 2019-03-05 2020-09-10 The Procter & Gamble Company Wireless monitoring system
CN112687066A (zh) * 2020-12-21 2021-04-20 山东产研信息与人工智能融合研究院有限公司 一种用于棉花仓库的棉包防盗设备和方法

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
US2774060A (en) * 1953-06-15 1956-12-11 Richard B Thompson Detecting means for stolen goods
US3098971A (en) * 1961-09-26 1963-07-23 Robert M Richardson Remotely actuated radio frequency powered devices
US3384892A (en) * 1966-11-07 1968-05-21 Philco Ford Corp Interrogator-responder signalling system
US3518546A (en) * 1966-12-12 1970-06-30 Microlab Fxr Harmonic communication and navigation system
US3754226A (en) * 1968-03-22 1973-08-21 Stoplifter Int Inc Conductive-ring ferromagnetic marker and method and system for using same
US3493955A (en) * 1968-04-17 1970-02-03 Monere Corp Method and apparatus for detecting the unauthorized movement of articles
US3711848A (en) * 1971-02-10 1973-01-16 I D Eng Inc Method of and apparatus for the detection of stolen articles

Also Published As

Publication number Publication date
IL29665A (en) 1971-12-29
IE32556L (en) 1968-09-30
GB1227141A (ja) 1971-04-07
CH497009A (de) 1970-09-30
LU55805A1 (ja) 1968-06-17
DE1766065B2 (de) 1979-08-09
SE343418B (ja) 1972-03-06
FR1565745A (ja) 1969-05-02
JPS5230836B1 (ja) 1977-08-10
AT311217B (de) 1973-11-12
BR6897870D0 (pt) 1973-01-11
NO126975B (ja) 1973-04-16
DE1766065A1 (de) 1971-05-27
DE1766065C3 (de) 1980-04-10
IE32556B1 (en) 1973-09-19
US4063229A (en) 1977-12-13
DK126143B (ja) 1973-06-12
NL159802B (nl) 1979-03-15
ES352178A1 (es) 1970-02-01
DK126143C (da) 1973-10-22
NL6804325A (ja) 1968-10-01
BE713027A (ja) 1968-09-30

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