CA2262585A1 - Resonant circuit for electronic anti-theft element - Google Patents

Resonant circuit for electronic anti-theft element

Info

Publication number
CA2262585A1
CA2262585A1 CA002262585A CA2262585A CA2262585A1 CA 2262585 A1 CA2262585 A1 CA 2262585A1 CA 002262585 A CA002262585 A CA 002262585A CA 2262585 A CA2262585 A CA 2262585A CA 2262585 A1 CA2262585 A1 CA 2262585A1
Authority
CA
Canada
Prior art keywords
resonant circuit
printed circuits
electronic anti
task
dielectric layer
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.)
Granted
Application number
CA002262585A
Other languages
French (fr)
Other versions
CA2262585C (en
Inventor
Richard Altwasser
Peter Lendering
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.)
Meto International GmbH
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
Priority claimed from DE19705722A external-priority patent/DE19705722A1/en
Application filed by Individual filed Critical Individual
Publication of CA2262585A1 publication Critical patent/CA2262585A1/en
Application granted granted Critical
Publication of CA2262585C publication Critical patent/CA2262585C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G08B13/2414—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
    • G08B13/242—Tag deactivation
    • 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
    • G08B13/2428—Tag details
    • G08B13/2437—Tag layered structure, processes for making layered 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
    • G08B13/2428—Tag details
    • G08B13/2448—Tag with at least dual detection means, e.g. combined inductive and ferromagnetic tags, dual frequencies within a single technology, tampering detection or signalling means on the tag

Abstract

This invention concerns a resonant circuit (6) for the electronic element. The task of the invention is to propose a resonant circuit (6) which can be reliably deactivated. This task is achieved by using a resonant circuit (6) consisting of two spiral printed circuits (2, 3) and one dielectric layer (4), wherein both spiral printed circuits (2, 3) are wrapped in opposing directions and arranged on both sides of the dielectric layer (4) so that they at least partly overlap. At least one selected area (8) is provided in which a conductive path arises between the two spiral printed circuits (2, 3) whenever a sufficiently high energy is applied by means of an external alternating field.
CA002262585A 1996-08-06 1997-07-29 Resonant circuit for electronic anti-theft element Expired - Lifetime CA2262585C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19631775.4 1996-08-06
DE19631775 1996-08-06
DE19705722.5 1997-02-14
DE19705722A DE19705722A1 (en) 1996-08-06 1997-02-14 Resonant circuit for electronic article surveillance
PCT/EP1997/004113 WO1998006074A1 (en) 1996-08-06 1997-07-29 Resonant circuit for electronic anti-theft element

Publications (2)

Publication Number Publication Date
CA2262585A1 true CA2262585A1 (en) 1998-02-12
CA2262585C CA2262585C (en) 2002-02-26

Family

ID=26028182

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002262585A Expired - Lifetime CA2262585C (en) 1996-08-06 1997-07-29 Resonant circuit for electronic anti-theft element

Country Status (11)

Country Link
US (1) US6169482B1 (en)
EP (1) EP0919049B1 (en)
JP (1) JP3974659B2 (en)
AT (1) ATE191288T1 (en)
AU (1) AU3941897A (en)
CA (1) CA2262585C (en)
DK (1) DK0919049T3 (en)
ES (1) ES2147017T3 (en)
NO (1) NO313065B1 (en)
PT (1) PT919049E (en)
WO (1) WO1998006074A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19905886A1 (en) * 1999-02-11 2000-08-17 Meto International Gmbh Identification element and method for producing an identification element
JP3390389B2 (en) * 1999-12-08 2003-03-24 チェックポイント・マニュファクチュアリング・ジャパン株式会社 Resonance tag
US6400271B1 (en) * 2000-03-20 2002-06-04 Checkpoint Systems, Inc. Activate/deactiveable security tag with enhanced electronic protection for use with an electronic security system
FR2832530B1 (en) * 2001-11-22 2004-08-20 Nojim METHOD FOR MANUFACTURING A LABEL WITH RESONANCE CIRCUITS
JP2005280287A (en) * 2004-03-31 2005-10-13 Tokai Aluminum Foil Co Ltd Manufacturing method for laminated material for resonant label
JP2006301827A (en) * 2005-04-19 2006-11-02 Aruze Corp Non-contact ic card system and mounting object for non-contact ic card
WO2007130147A2 (en) * 2005-11-04 2007-11-15 Gerald Giasson Security sensor system
US20080191883A1 (en) * 2007-02-12 2008-08-14 Checkpoint Systems, Inc. Resonant tag
US7812734B2 (en) * 2007-12-20 2010-10-12 Ken Hardin Alarm system employing existing conductive aspect of copper lines as well as optional pressure switch sensor for triggering a copper theft event

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5285191A (en) * 1981-10-30 1994-02-08 Reeb Max E LC marker construction useful as an electromagnetically interrogatable transponder means
US4498076A (en) * 1982-05-10 1985-02-05 Lichtblau G J Resonant tag and deactivator for use in an electronic security system
DE3221500A1 (en) 1982-06-07 1983-12-08 Max-E. Dipl.-Ing. 7320 Göppingen Reeb IDENTIFICATION ARRANGEMENT IN THE FORM OF AN OBJECT TO BE ATTACHED TO AN OBJECT, AND METHOD FOR THE PRODUCTION THEREOF
NL8700388A (en) 1987-02-17 1988-09-16 Nedap Nv FLEXIBLE IDENTIFICATION LABEL.
US4876555B1 (en) * 1987-03-17 1995-07-25 Actron Entwicklungs Ag Resonance label and method for its fabrication
CH680823A5 (en) 1990-08-17 1992-11-13 Kobe Properties Ltd
CH682957A5 (en) * 1991-04-16 1993-12-15 Kobe Properties Ltd Method for deactivating a resonant tag.
US5241299A (en) 1991-05-22 1993-08-31 Checkpoint Systems, Inc. Stabilized resonant tag circuit
EP0755035B1 (en) 1995-07-17 2001-08-16 Checkpoint Manufacturing Japan Co., Ltd. Resonant tag and method of manufacturing the same

Also Published As

Publication number Publication date
CA2262585C (en) 2002-02-26
AU3941897A (en) 1998-02-25
JP3974659B2 (en) 2007-09-12
DK0919049T3 (en) 2000-08-28
ATE191288T1 (en) 2000-04-15
NO990516L (en) 1999-02-04
US6169482B1 (en) 2001-01-02
EP0919049A1 (en) 1999-06-02
EP0919049B1 (en) 2000-03-29
WO1998006074A1 (en) 1998-02-12
JP2001507141A (en) 2001-05-29
ES2147017T3 (en) 2000-08-16
NO313065B1 (en) 2002-08-05
PT919049E (en) 2000-09-29
NO990516D0 (en) 1999-02-04

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20170731