CA2200075A1 - Identification method and identification apparatus - Google Patents

Identification method and identification apparatus

Info

Publication number
CA2200075A1
CA2200075A1 CA 2200075 CA2200075A CA2200075A1 CA 2200075 A1 CA2200075 A1 CA 2200075A1 CA 2200075 CA2200075 CA 2200075 CA 2200075 A CA2200075 A CA 2200075A CA 2200075 A1 CA2200075 A1 CA 2200075A1
Authority
CA
Canada
Prior art keywords
zone
field
frequency
ant
electromagnetic field
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.)
Abandoned
Application number
CA 2200075
Other languages
English (en)
French (fr)
Inventor
Olli Jaakkola
Heikki Seppa
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.)
TUOTESUOJA SIRPA JARVENSIVU KY
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2200075A1 publication Critical patent/CA2200075A1/en
Abandoned 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
    • G08B13/2451—Specific applications combined with EAS
    • G08B13/2454—Checking of authorisation of a person accessing tagged items in an EAS system
    • 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

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Automation & Control Theory (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Burglar Alarm Systems (AREA)
  • Discharge Of Articles From Conveyors (AREA)
CA 2200075 1994-09-26 1995-09-19 Identification method and identification apparatus Abandoned CA2200075A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI944449A FI95514C (fi) 1994-09-26 1994-09-26 Identifiointimenetelmä sekä identifiointilaitteisto
FI944449 1994-09-26

Publications (1)

Publication Number Publication Date
CA2200075A1 true CA2200075A1 (en) 1996-04-04

Family

ID=8541441

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2200075 Abandoned CA2200075A1 (en) 1994-09-26 1995-09-19 Identification method and identification apparatus

Country Status (7)

Country Link
EP (1) EP0783744A1 (no)
JP (1) JPH10506210A (no)
AU (1) AU3389795A (no)
CA (1) CA2200075A1 (no)
FI (1) FI95514C (no)
NO (1) NO971414L (no)
WO (1) WO1996010241A1 (no)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004003591A1 (en) * 2002-06-26 2004-01-08 It-Højskolen A method of and a system for surveillance of an environment utilising electromagnetic waves
AU2003245121B2 (en) * 2002-07-24 2008-07-10 McCarron Pty Ltd An electronic bait station
AU2002950326A0 (en) * 2002-07-24 2002-09-12 J I Peston Pty Ltd An electronic bait station
US7961096B2 (en) * 2009-01-13 2011-06-14 Sensormatic Electronics Corporation System and method for detection of EAS marker shielding
US8659428B2 (en) * 2010-03-03 2014-02-25 Tyco Fire & Security Gmbh Method and system for reducing effect of interference in integrated metal detection/electronic article surveillance systems

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7708012A (nl) * 1977-07-19 1979-01-23 Nedap Nv Detectiestelsel.
EP0020062B1 (en) * 1979-05-18 1984-03-07 Parmeko Limited Method and surveillance system for detecting the presence of an e.m. wave receptor reradiator
US4249167A (en) * 1979-06-05 1981-02-03 Magnavox Government And Industrial Electronics Company Apparatus and method for theft detection system having different frequencies
US4321586A (en) * 1980-08-21 1982-03-23 Knogo Corporation Article theft detection
US4682154A (en) * 1986-02-12 1987-07-21 E.A.S. Technologies, Inc. Label for use in anti-theft surveillance system
EP0670562A1 (en) * 1994-03-01 1995-09-06 Flexcon Company Inc. Resonant tag label detection system and method utilizing multiple frequency response

Also Published As

Publication number Publication date
NO971414L (no) 1997-05-16
FI95514B (fi) 1995-10-31
WO1996010241A1 (en) 1996-04-04
NO971414D0 (no) 1997-03-25
EP0783744A1 (en) 1997-07-16
FI95514C (fi) 1996-02-12
FI944449A0 (fi) 1994-09-26
AU3389795A (en) 1996-04-19
JPH10506210A (ja) 1998-06-16

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Legal Events

Date Code Title Description
FZDE Dead