NL8203849A - Inrichting voor het registreren van een door een bepaald gebied passerend voorwerp. - Google Patents

Inrichting voor het registreren van een door een bepaald gebied passerend voorwerp. Download PDF

Info

Publication number
NL8203849A
NL8203849A NL8203849A NL8203849A NL8203849A NL 8203849 A NL8203849 A NL 8203849A NL 8203849 A NL8203849 A NL 8203849A NL 8203849 A NL8203849 A NL 8203849A NL 8203849 A NL8203849 A NL 8203849A
Authority
NL
Netherlands
Prior art keywords
signals
period
reception period
transmission
frequency
Prior art date
Application number
NL8203849A
Other languages
English (en)
Dutch (nl)
Original Assignee
Security Prod Int
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 Security Prod Int filed Critical Security Prod Int
Publication of NL8203849A publication Critical patent/NL8203849A/nl

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
    • G08B13/2471—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Burglar Alarm Systems (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
  • Container Filling Or Packaging Operations (AREA)
NL8203849A 1981-10-05 1982-10-04 Inrichting voor het registreren van een door een bepaald gebied passerend voorwerp. NL8203849A (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA387303 1981-10-05
CA000387303A CA1180788A (en) 1981-10-05 1981-10-05 System for registrating a passing article

Publications (1)

Publication Number Publication Date
NL8203849A true NL8203849A (nl) 1983-05-02

Family

ID=4121088

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8203849A NL8203849A (nl) 1981-10-05 1982-10-04 Inrichting voor het registreren van een door een bepaald gebied passerend voorwerp.

Country Status (7)

Country Link
JP (1) JPS58121495A (enrdf_load_stackoverflow)
AU (1) AU535114B2 (enrdf_load_stackoverflow)
CA (1) CA1180788A (enrdf_load_stackoverflow)
ES (1) ES515888A0 (enrdf_load_stackoverflow)
NL (1) NL8203849A (enrdf_load_stackoverflow)
NO (1) NO156349C (enrdf_load_stackoverflow)
ZA (1) ZA826195B (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5036308A (en) * 1988-12-27 1991-07-30 N.V. Nederlandsche Apparatenfabriek Nedap Identification system
US5382780A (en) * 1993-10-01 1995-01-17 Duncan Industries Parking Control Systems Corp. Portable time metering device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4509039A (en) * 1983-07-05 1985-04-02 Minnesota Mining And Manufacturing Company Shielded, closely spaced transmit-receiver antennas for electronic article surveillance system
JPH07263935A (ja) * 1994-03-24 1995-10-13 Hochiki Corp アンテナ装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5645200B2 (enrdf_load_stackoverflow) * 1973-03-10 1981-10-24
US4243980A (en) * 1978-02-17 1981-01-06 Lichtblau G J Antenna system for electronic security installations

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5036308A (en) * 1988-12-27 1991-07-30 N.V. Nederlandsche Apparatenfabriek Nedap Identification system
US5382780A (en) * 1993-10-01 1995-01-17 Duncan Industries Parking Control Systems Corp. Portable time metering device

Also Published As

Publication number Publication date
JPS58121495A (ja) 1983-07-19
AU535114B2 (en) 1984-03-01
ZA826195B (en) 1983-07-27
JPH0354392B2 (enrdf_load_stackoverflow) 1991-08-20
NO823180L (no) 1983-04-06
ES8306264A1 (es) 1983-06-01
AU8867082A (en) 1983-04-14
NO156349B (no) 1987-05-25
NO156349C (no) 1987-09-02
CA1180788A (en) 1985-01-08
ES515888A0 (es) 1983-06-01

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Legal Events

Date Code Title Description
A85 Still pending on 85-01-01
CNR Transfer of rights (patent application after its laying open for public inspection)

Free format text: ANTONSON SECURITY DENMARK APS

DNT Communications of changes of names of applicants whose applications have been laid open to public inspection

Free format text: ANTONSON SECURITY DENMARK A/S

BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
DNT Communications of changes of names of applicants whose applications have been laid open to public inspection

Free format text: ACTRON DENMARK A/S

BV The patent application has lapsed