ATE203612T1 - SYSTEM FOR MONITORING ELECTROMAGNETICALLY SECURED ITEMS IN MULTIPLE MONITORING ZONES - Google Patents

SYSTEM FOR MONITORING ELECTROMAGNETICALLY SECURED ITEMS IN MULTIPLE MONITORING ZONES

Info

Publication number
ATE203612T1
ATE203612T1 AT98924245T AT98924245T ATE203612T1 AT E203612 T1 ATE203612 T1 AT E203612T1 AT 98924245 T AT98924245 T AT 98924245T AT 98924245 T AT98924245 T AT 98924245T AT E203612 T1 ATE203612 T1 AT E203612T1
Authority
AT
Austria
Prior art keywords
monitoring
zones
electromagnetically
secured items
transmitting
Prior art date
Application number
AT98924245T
Other languages
German (de)
Inventor
Peter Bremer
Terry Clancy
David Stocks
Original Assignee
Meto International Gmbh
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 Meto International Gmbh filed Critical Meto International Gmbh
Application granted granted Critical
Publication of ATE203612T1 publication Critical patent/ATE203612T1/en

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
    • G08B13/2465—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

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Alarm Systems (AREA)

Abstract

The invention relates to a system for supervising electromagnetically protected items in n supervision zones (n>/=2). Each of the n supervision zones is defined by two transmitting/receiving devices which are arranged on both sides of the zone. Each transmitting device has at least one transmitting reel and each receiving device has m receiving reels (m>/=1). The invention seeks to provide an inexpensive system for supervising electromagnetically protected items. To this end, a switching device (10) is fitted which reduces the outputs of the (2.n) receiving devices (4) to n outputs.
AT98924245T 1997-05-27 1998-04-30 SYSTEM FOR MONITORING ELECTROMAGNETICALLY SECURED ITEMS IN MULTIPLE MONITORING ZONES ATE203612T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19722078A DE19722078A1 (en) 1997-05-27 1997-05-27 System for the surveillance of electromagnetically secured articles in several surveillance zones
PCT/EP1998/002543 WO1998054680A1 (en) 1997-05-27 1998-04-30 Supervision system for electromagnetically protected items in several supervision zones

Publications (1)

Publication Number Publication Date
ATE203612T1 true ATE203612T1 (en) 2001-08-15

Family

ID=7830590

Family Applications (1)

Application Number Title Priority Date Filing Date
AT98924245T ATE203612T1 (en) 1997-05-27 1998-04-30 SYSTEM FOR MONITORING ELECTROMAGNETICALLY SECURED ITEMS IN MULTIPLE MONITORING ZONES

Country Status (7)

Country Link
EP (1) EP0985205B1 (en)
AT (1) ATE203612T1 (en)
AU (1) AU734882B2 (en)
DE (2) DE19722078A1 (en)
DK (1) DK0985205T3 (en)
ES (1) ES2161535T3 (en)
WO (1) WO1998054680A1 (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4751516A (en) * 1985-01-10 1988-06-14 Lichtblau G J Antenna system for magnetic and resonant circuit detection
US5371490A (en) * 1989-03-22 1994-12-06 Actron Entwicklungs Ag System for electronic safeguarding against burglary using multiple transmitters and receivers
US5126749A (en) * 1989-08-25 1992-06-30 Kaltner George W Individually fed multiloop antennas for electronic security systems
US5337040A (en) * 1991-10-31 1994-08-09 Actron Entwicklungs Ag Detection apparatus for shoplifting-preventing labels
BR9307899A (en) * 1993-12-30 1996-09-10 Sensomatic Electronics Corp Apparatus and method for generating detection signals in response to the presence of magnetically saturating sensor elements within the limits of an interrogation zone
NL9400076A (en) * 1994-01-17 1995-09-01 Nedap Nv Theft detection and identification system.
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
DE19503896A1 (en) * 1995-02-07 1996-08-08 Esselte Meto Int Gmbh Device for detecting an article provided with an electronic security element
US5600304A (en) * 1995-11-02 1997-02-04 Sensormatic Electronics Corporation EAS system with common control station for different personality local stations

Also Published As

Publication number Publication date
DE59801089D1 (en) 2001-08-30
WO1998054680A1 (en) 1998-12-03
AU734882B2 (en) 2001-06-21
AU7650898A (en) 1998-12-30
DK0985205T3 (en) 2001-10-22
EP0985205B1 (en) 2001-07-25
EP0985205A1 (en) 2000-03-15
DE19722078A1 (en) 1998-12-03
ES2161535T3 (en) 2001-12-01

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Legal Events

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