NL8200138A - Detectiestelsel. - Google Patents

Detectiestelsel. Download PDF

Info

Publication number
NL8200138A
NL8200138A NL8200138A NL8200138A NL8200138A NL 8200138 A NL8200138 A NL 8200138A NL 8200138 A NL8200138 A NL 8200138A NL 8200138 A NL8200138 A NL 8200138A NL 8200138 A NL8200138 A NL 8200138A
Authority
NL
Netherlands
Prior art keywords
responder
frequency
signal
coil
detection system
Prior art date
Application number
NL8200138A
Other languages
English (en)
Dutch (nl)
Original Assignee
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 Nedap Nv filed Critical Nedap Nv
Priority to NL8200138A priority Critical patent/NL8200138A/nl
Priority to US06/378,244 priority patent/US4551712A/en
Priority to EP83200066A priority patent/EP0084400B1/de
Priority to AT83200066T priority patent/ATE29182T1/de
Priority to DE8383200066T priority patent/DE3373232D1/de
Publication of NL8200138A publication Critical patent/NL8200138A/nl

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
    • G08B13/2414—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
    • 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
    • G08B13/2431—Tag circuit details

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Eye Examination Apparatus (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Burglar Alarm Systems (AREA)
NL8200138A 1982-01-14 1982-01-14 Detectiestelsel. NL8200138A (nl)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL8200138A NL8200138A (nl) 1982-01-14 1982-01-14 Detectiestelsel.
US06/378,244 US4551712A (en) 1982-01-14 1982-05-14 Electronic detection system for detecting a responder including a frequency divider
EP83200066A EP0084400B1 (de) 1982-01-14 1983-01-14 Detektionssystem
AT83200066T ATE29182T1 (de) 1982-01-14 1983-01-14 Detektionssystem.
DE8383200066T DE3373232D1 (en) 1982-01-14 1983-01-14 Detection system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8200138 1982-01-14
NL8200138A NL8200138A (nl) 1982-01-14 1982-01-14 Detectiestelsel.

Publications (1)

Publication Number Publication Date
NL8200138A true NL8200138A (nl) 1983-08-01

Family

ID=19839081

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8200138A NL8200138A (nl) 1982-01-14 1982-01-14 Detectiestelsel.

Country Status (5)

Country Link
US (1) US4551712A (de)
EP (1) EP0084400B1 (de)
AT (1) ATE29182T1 (de)
DE (1) DE3373232D1 (de)
NL (1) NL8200138A (de)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4644286A (en) * 1985-09-17 1987-02-17 Allied Corporation Article surveillance system receiver using synchronous demodulation and signal integration
JPS6337279A (ja) * 1986-08-01 1988-02-17 Wako Sangyo:Kk 物品の移動検知システム
NL8602033A (nl) * 1986-08-08 1988-03-01 Nedap Nv Precisie richtfunctie bij herkensysteem.
US5302954A (en) * 1987-12-04 1994-04-12 Magellan Corporation (Australia) Pty. Ltd. Identification apparatus and methods
US5485154A (en) * 1987-12-04 1996-01-16 Magellan Corporation (Australia) Pty. Ltd. Communication device and method(s)
US5701121A (en) * 1988-04-11 1997-12-23 Uniscan Ltd. Transducer and interrogator device
US5084699A (en) * 1989-05-26 1992-01-28 Trovan Limited Impedance matching coil assembly for an inductively coupled transponder
US5241298A (en) * 1992-03-18 1993-08-31 Security Tag Systems, Inc. Electrically-and-magnetically-coupled, batteryless, portable, frequency divider
US5317330A (en) * 1992-10-07 1994-05-31 Westinghouse Electric Corp. Dual resonant antenna circuit for RF tags
NL9300991A (nl) * 1993-06-09 1995-01-02 Nedap Nv Diefstaldetectiesysteem.
DE69422682T2 (de) * 1993-10-26 2000-08-10 Texas Instruments Deutschland Antennenschaltung
WO1998058347A1 (fr) * 1997-06-18 1998-12-23 Mitsubishi Denki Kabushiki Kaisha Syteme de cartes a circuit integre sans contact et carte a circuit integre sans contact
US5955950A (en) * 1998-07-24 1999-09-21 Checkpoint Systems, Inc. Low noise signal generator for use with an RFID system
US5959531A (en) * 1998-07-24 1999-09-28 Checkpoint Systems, Inc. Optical interface between receiver and tag response signal analyzer in RFID system for detecting low power resonant tags
US6812839B1 (en) * 2000-03-27 2004-11-02 Wherenet Corp Use of rotating magnetic field to enhance communication with RF burst-transmitting tags of object location system
US20060279406A1 (en) * 2005-06-07 2006-12-14 Robert Stewart Synchronization and adaptive timing method for multiple RFID reader system
US7528725B2 (en) * 2005-07-15 2009-05-05 Allflex U.S.A., Inc. Passive dynamic antenna tuning circuit for a radio frequency identification reader
US7936272B2 (en) * 2006-06-29 2011-05-03 Allflex Usa, Inc. Dynamic antenna tuning circuit for a radio frequency identification reader
US8508367B2 (en) 2009-09-21 2013-08-13 Checkpoint Systems, Inc. Configurable monitoring device
US8452868B2 (en) 2009-09-21 2013-05-28 Checkpoint Systems, Inc. Retail product tracking system, method, and apparatus
AU2010303188B2 (en) * 2009-10-09 2014-12-04 Allflex Australia Pty Limited HDX demodulator
DK2486552T3 (da) * 2009-10-09 2017-11-20 Aleis Pty Ltd Radiofrekvensidentifikation-læserantenne med en dynamisk indstillelig Q-faktor
EP2497152B1 (de) * 2009-11-04 2020-01-01 Allflex Usa, Inc. Multi-loop-antenne für sendung/empfang mit signalunterdrückung für ein lesegerät zur funkfrequenzidentifikation
RU2584496C1 (ru) * 2014-12-15 2016-05-20 Федеральное государственное унитарное предприятие федеральный научно-производственный центр "Производственное объединение "Старт" им. М.В. Проценко" (ФГУП ФНПЦ ПО "Старт" им. М.В. Проценко") Радиоволновое устройство для тревожной сигнализации с непрерывным излучением частотно-модулированных колебаний

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE321883B (de) * 1965-03-05 1970-03-16 A Minasy
GB1545045A (en) * 1967-12-09 1979-05-02 Plessey Co Ltd Animal identification systems
GB1187130A (en) * 1967-12-09 1970-04-08 Plessey Co Ltd Improvements in or relating to Vehicle Identification Systems.
US3859652A (en) * 1972-06-26 1975-01-07 North American Systems Corp Method and apparatus for detecting the theft of articles
US3895368A (en) * 1972-08-09 1975-07-15 Sensormatic Electronics Corp Surveillance system and method utilizing both electrostatic and electromagnetic fields
US3838409A (en) * 1973-04-13 1974-09-24 Knogo Corp Field strength uniformity control system for article theft detection system
US3964024A (en) * 1974-11-15 1976-06-15 Westinghouse Air Brake Company Transponder for an automatic vehicle identification system
ZA7994B (en) * 1978-01-11 1980-01-30 Tag Radionics Ltd Presence sensing system
GB1599120A (en) * 1978-05-19 1981-09-30 Philips Electronic Associated Detection system

Also Published As

Publication number Publication date
EP0084400A2 (de) 1983-07-27
ATE29182T1 (de) 1987-09-15
EP0084400B1 (de) 1987-08-26
DE3373232D1 (en) 1987-10-01
EP0084400A3 (en) 1983-08-03
US4551712A (en) 1985-11-05

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Date Code Title Description
A1B A search report has been drawn up
BI The patent application has been withdrawn