ATE116755T1 - Ladendiebstahlnachweissystem vom transmissionstyp. - Google Patents

Ladendiebstahlnachweissystem vom transmissionstyp.

Info

Publication number
ATE116755T1
ATE116755T1 AT90200630T AT90200630T ATE116755T1 AT E116755 T1 ATE116755 T1 AT E116755T1 AT 90200630 T AT90200630 T AT 90200630T AT 90200630 T AT90200630 T AT 90200630T AT E116755 T1 ATE116755 T1 AT E116755T1
Authority
AT
Austria
Prior art keywords
signal
phase
detection system
synchronous detector
received signal
Prior art date
Application number
AT90200630T
Other languages
English (en)
Inventor
Tallienco Wieand Harm Fockens
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
Application granted granted Critical
Publication of ATE116755T1 publication Critical patent/ATE116755T1/de

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
    • G08B13/2465—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
AT90200630T 1989-03-17 1990-03-16 Ladendiebstahlnachweissystem vom transmissionstyp. ATE116755T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8900658A NL8900658A (nl) 1989-03-17 1989-03-17 Hoogfrequent winkeldiefstaldetectiesysteem volgens het transmissieprincipe.

Publications (1)

Publication Number Publication Date
ATE116755T1 true ATE116755T1 (de) 1995-01-15

Family

ID=19854307

Family Applications (1)

Application Number Title Priority Date Filing Date
AT90200630T ATE116755T1 (de) 1989-03-17 1990-03-16 Ladendiebstahlnachweissystem vom transmissionstyp.

Country Status (6)

Country Link
US (1) US5051727A (de)
EP (1) EP0387970B1 (de)
AT (1) ATE116755T1 (de)
DD (1) DD294585A5 (de)
DE (1) DE69015668T2 (de)
NL (1) NL8900658A (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5315289A (en) * 1991-09-16 1994-05-24 Fuller Terry A Anticipatory interactive protective system
DE4200082A1 (de) * 1992-01-03 1993-07-08 Minnesota Mining & Mfg Vorrichtung und verfahren zum erkennen eines magnetisierbaren markierungselementes
US5353011A (en) * 1993-01-04 1994-10-04 Checkpoint Systems, Inc. Electronic article security system with digital signal processing and increased detection range
NL9300180A (nl) * 1993-01-28 1994-08-16 Nedap Nv Detectie van resonantie door middel van enkelzijbanddemodulatie.
US5440291A (en) * 1993-07-01 1995-08-08 Lockheed Corporation Intruder detection system for passageways and the like
NL9400076A (nl) * 1994-01-17 1995-09-01 Nedap Nv Diefstaldetectie- en identificatiesysteem.
DE4436978A1 (de) * 1994-10-15 1996-04-18 Esselte Meto Int Gmbh Anlage zur elektronischen Artikelüberwachung
DE4436977A1 (de) * 1994-10-15 1996-04-18 Esselte Meto Int Gmbh Anlage zur elektronischen Artikelüberwachung
US6320507B1 (en) * 2000-04-07 2001-11-20 Sensormatic Electronics Corporation Method for synchronization between systems
ES2348489T3 (es) * 2001-02-08 2010-12-07 Sensormatic Electronics, LLC Sincronización inalámbrica automatica de sistemas de vigilancia de árticulos electrónicos.
CA2559153C (en) 2005-09-12 2018-10-02 Acuity Brands, Inc. Light management system having networked intelligent luminaire managers
WO2007044445A2 (en) * 2005-10-05 2007-04-19 Guardian Networks, Llc A method and system for remotely monitoring and controlling field devices with a street lamp elevated mesh network
US7570220B2 (en) * 2006-06-27 2009-08-04 Sensormatic Electronics Corporation Resonant circuit tuning system with dynamic impedance matching
US8218810B1 (en) 2006-07-19 2012-07-10 Stanley Security Solutions, Inc. Signaling device
US20080107219A1 (en) * 2006-11-07 2008-05-08 Sensormatic Electronics Corporation Electronic articles surveillance system synchronization using global positioning satellite signal
US8594976B2 (en) * 2008-02-27 2013-11-26 Abl Ip Holding Llc System and method for streetlight monitoring diagnostics
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

Family Cites Families (9)

* 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
US3559201A (en) * 1967-01-03 1971-01-26 Gen Atronics Corp Security system
NL7708012A (nl) * 1977-07-19 1979-01-23 Nedap Nv Detectiestelsel.
US4243980A (en) * 1978-02-17 1981-01-06 Lichtblau G J Antenna system for electronic security installations
US4260990A (en) * 1979-11-08 1981-04-07 Lichtblau G J Asymmetrical antennas for use in electronic security systems
US4274090A (en) * 1980-02-19 1981-06-16 Knogo Corporation Detection of articles in adjacent passageways
NL8202951A (nl) * 1982-07-21 1984-02-16 Nedap Nv Absorptiedetectiestelsel.
FR2553523B1 (fr) * 1983-10-17 1986-06-13 Raibaud Guy Alarme inductive de protection contre le vol par detection de circuits resonnants
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

Also Published As

Publication number Publication date
DD294585A5 (de) 1991-10-02
EP0387970A1 (de) 1990-09-19
EP0387970B1 (de) 1995-01-04
DE69015668T2 (de) 1995-05-11
US5051727A (en) 1991-09-24
NL8900658A (nl) 1990-10-16
DE69015668D1 (de) 1995-02-16

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee