EP0746830A4 - Artikelermittlung im einer begrenzten überwachungszone - Google Patents

Artikelermittlung im einer begrenzten überwachungszone

Info

Publication number
EP0746830A4
EP0746830A4 EP94906478A EP94906478A EP0746830A4 EP 0746830 A4 EP0746830 A4 EP 0746830A4 EP 94906478 A EP94906478 A EP 94906478A EP 94906478 A EP94906478 A EP 94906478A EP 0746830 A4 EP0746830 A4 EP 0746830A4
Authority
EP
European Patent Office
Prior art keywords
zone
antennas
interrogation zone
transmitting
detection signals
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.)
Withdrawn
Application number
EP94906478A
Other languages
English (en)
French (fr)
Other versions
EP0746830A1 (de
Inventor
Christopher Reinard Paul
David Tietjen Lundquist
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
Publication of EP0746830A1 publication Critical patent/EP0746830A1/de
Publication of EP0746830A4 publication Critical patent/EP0746830A4/de
Withdrawn legal-status Critical Current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
    • G08B13/2465—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Geophysics And Detection Of Objects (AREA)
EP94906478A 1993-12-30 1993-12-30 Artikelermittlung im einer begrenzten überwachungszone Withdrawn EP0746830A4 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1993/012691 WO1995018430A1 (en) 1993-12-30 1993-12-30 Article detection in a limited interrogation zone

Publications (2)

Publication Number Publication Date
EP0746830A1 EP0746830A1 (de) 1996-12-11
EP0746830A4 true EP0746830A4 (de) 1997-02-05

Family

ID=22237341

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94906478A Withdrawn EP0746830A4 (de) 1993-12-30 1993-12-30 Artikelermittlung im einer begrenzten überwachungszone

Country Status (4)

Country Link
EP (1) EP0746830A4 (de)
AU (1) AU6016994A (de)
BR (1) BR9307899A (de)
WO (1) WO1995018430A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19722078A1 (de) * 1997-05-27 1998-12-03 Meto International Gmbh System zur Überwachung von elektromagnetisch gesicherten Artikeln in mehreren Überwachungszonen
US6937011B2 (en) 2001-12-10 2005-08-30 Rockwell Automation Technologies, Inc. Detector for magnetizable material using amplitude and phase discrimination
US6788049B2 (en) 2001-12-31 2004-09-07 Rockwell Automation Technologies, Inc. Detector for magnetizable material using amplitude and phase discrimination
FI20095944A0 (fi) 2009-09-14 2009-09-14 Valtion Teknillinen Langaton MEMS-sensori ja menetelmä tämän lukemiseksi

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4623877A (en) * 1983-06-30 1986-11-18 Knogo Corporation Method and apparatus for detection of targets in an interrogation zone
AU567604B2 (en) * 1984-02-15 1987-11-26 Esselte Meto International Gmbh Method and system for detecting an indicating device
US4568921A (en) * 1984-07-13 1986-02-04 Knogo Corporation Theft detection apparatus and target and method of making same
US5121103A (en) * 1988-07-29 1992-06-09 Knogo Corporation Load isolated article surveillance system and antenna assembly
US5029291A (en) * 1990-04-10 1991-07-02 Knogo Corporation Electromagnetic sensor element and methods and apparatus for making and using same

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
No further relevant documents disclosed *
See also references of WO9518430A1 *

Also Published As

Publication number Publication date
EP0746830A1 (de) 1996-12-11
WO1995018430A1 (en) 1995-07-06
BR9307899A (pt) 1996-09-10
AU6016994A (en) 1995-07-17

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Legal Events

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