CA2007310A1 - Electronic article surveillance system with improved differentiation - Google Patents

Electronic article surveillance system with improved differentiation

Info

Publication number
CA2007310A1
CA2007310A1 CA 2007310 CA2007310A CA2007310A1 CA 2007310 A1 CA2007310 A1 CA 2007310A1 CA 2007310 CA2007310 CA 2007310 CA 2007310 A CA2007310 A CA 2007310A CA 2007310 A1 CA2007310 A1 CA 2007310A1
Authority
CA
Canada
Prior art keywords
tag
signals
signal
pulse
receiver
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 2007310
Other languages
English (en)
French (fr)
Inventor
Phillip J. Lizzi
Richard A. Shandelman
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.)
Checkpoint Systems Inc
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 CA2007310A1 publication Critical patent/CA2007310A1/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
    • G08B13/2465—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
    • G08B13/2468—Antenna in system and the related signal processing
    • G08B13/2471—Antenna signal processing by receiver or emitter
    • 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
    • G08B13/2474—Antenna or antenna activator geometry, arrangement or layout
    • 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
    • G08B13/2482—EAS methods, e.g. description of flow chart of the detection procedure

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)
  • Radar Systems Or Details Thereof (AREA)
  • Medicinal Preparation (AREA)
  • Geophysics And Detection Of Objects (AREA)
CA 2007310 1989-01-09 1990-01-08 Electronic article surveillance system with improved differentiation Abandoned CA2007310A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US29506489A 1989-01-09 1989-01-09
US07/295,064 1989-01-09

Publications (1)

Publication Number Publication Date
CA2007310A1 true CA2007310A1 (en) 1990-07-09

Family

ID=23136063

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2007310 Abandoned CA2007310A1 (en) 1989-01-09 1990-01-08 Electronic article surveillance system with improved differentiation

Country Status (11)

Country Link
EP (1) EP0403632A4 (no)
JP (1) JPH03503219A (no)
AU (2) AU631170B2 (no)
CA (1) CA2007310A1 (no)
DD (1) DD291654A5 (no)
DK (1) DK215790D0 (no)
ES (1) ES2020841A6 (no)
FI (1) FI904415A0 (no)
MX (1) MX173773B (no)
NO (1) NO180699C (no)
WO (1) WO1990007760A1 (no)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5300922A (en) * 1990-05-29 1994-04-05 Sensormatic Electronics Corporation Swept frequency electronic article surveillance system having enhanced facility for tag signal detection
US5537094A (en) * 1995-01-27 1996-07-16 Sensormatic Electronics Corporation Method and apparatus for detecting an EAS marker using a neural network processing device
EP1288841A1 (en) 2001-08-30 2003-03-05 Motorola, Inc. Passive response communication system
GB2389418B (en) * 2002-04-10 2006-07-26 Giles Stanley A detection device
ES2253104B1 (es) * 2004-10-20 2007-07-16 Alberto Murgui Faubell Sistema de deteccion de etiquetas resonantes para equipos antihurto y procedimiento asociado.

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3810172A (en) * 1972-07-18 1974-05-07 L Burpee Detection system
US4013965A (en) * 1974-08-05 1977-03-22 Scharfe Jr James A Circuit for preventing errors in decoding information from distorted pulses
NL8202951A (nl) * 1982-07-21 1984-02-16 Nedap Nv Absorptiedetectiestelsel.
US4673932A (en) * 1983-12-29 1987-06-16 Revlon, Inc. Rapid inventory data acquistion system
US4821282A (en) * 1985-12-27 1989-04-11 Honeywell Inc. Mirror assembly for lasers
SE8603415D0 (sv) * 1986-08-14 1986-08-14 Leif Arnold Persson Remote sensing of metglas identifiers
US4779077A (en) * 1987-04-13 1988-10-18 Lichtblau G J Continuously armed high reliability pulse train processor

Also Published As

Publication number Publication date
DK215790A (da) 1990-09-07
NO180699C (no) 1997-05-28
ES2020841A6 (es) 1991-10-01
AU631170B2 (en) 1992-11-19
DK215790D0 (da) 1990-09-07
NO903912D0 (no) 1990-09-07
WO1990007760A1 (en) 1990-07-12
AU4828790A (en) 1990-08-01
AU2455192A (en) 1992-11-19
JPH03503219A (ja) 1991-07-18
DD291654A5 (de) 1991-07-04
FI904415A0 (fi) 1990-09-07
NO180699B (no) 1997-02-17
EP0403632A1 (en) 1990-12-27
NO903912L (no) 1990-09-07
AU660708B2 (en) 1995-07-06
MX173773B (es) 1994-03-28
EP0403632A4 (en) 1993-05-05

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Dead