DE59108459D1 - Method for deactivating a resonance tag and circuit arrangement for carrying out the method - Google Patents

Method for deactivating a resonance tag and circuit arrangement for carrying out the method

Info

Publication number
DE59108459D1
DE59108459D1 DE59108459T DE59108459T DE59108459D1 DE 59108459 D1 DE59108459 D1 DE 59108459D1 DE 59108459 T DE59108459 T DE 59108459T DE 59108459 T DE59108459 T DE 59108459T DE 59108459 D1 DE59108459 D1 DE 59108459D1
Authority
DE
Germany
Prior art keywords
deactivating
carrying
circuit arrangement
resonance tag
deactivated
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.)
Expired - Fee Related
Application number
DE59108459T
Other languages
German (de)
Inventor
Juergen Dipl Phys Rehder
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.)
Actron Entwicklungs AG
Original Assignee
Actron Entwicklungs AG
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 Actron Entwicklungs AG filed Critical Actron Entwicklungs AG
Application granted granted Critical
Publication of DE59108459D1 publication Critical patent/DE59108459D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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

Abstract

In order to deactivate a resonant tag, a pulse generator circuit (1-4) is provided which is designed to transmit a pulse group comprising a specific number of pulses. In addition or as an alternative, an attenuator (R1), which can be deactivated via a switching device (S1), is provided in the transmission antenna circuit to facilitate the subsequent identification of any post-oscillating, i.e. not yet deactivated tags. <IMAGE>
DE59108459T 1990-04-25 1991-04-22 Method for deactivating a resonance tag and circuit arrangement for carrying out the method Expired - Fee Related DE59108459D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH139690 1990-04-25

Publications (1)

Publication Number Publication Date
DE59108459D1 true DE59108459D1 (en) 1997-02-20

Family

ID=4209450

Family Applications (1)

Application Number Title Priority Date Filing Date
DE59108459T Expired - Fee Related DE59108459D1 (en) 1990-04-25 1991-04-22 Method for deactivating a resonance tag and circuit arrangement for carrying out the method

Country Status (6)

Country Link
EP (1) EP0454021B1 (en)
JP (1) JP2910873B2 (en)
AT (1) ATE147527T1 (en)
DE (1) DE59108459D1 (en)
DK (1) DK0454021T3 (en)
ES (1) ES2095267T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK167829B1 (en) * 1991-11-14 1993-12-20 Poul Richter Joergensen PROCEDURE AND APPARATUS FOR ACTIVATING AND DISABLING LABELS
NL1002150C2 (en) * 1996-01-23 1997-07-25 Nedap Nv Deactivation system with improved reliability.
WO2000026880A2 (en) * 1998-10-30 2000-05-11 Sensormatic Electronics Corporation Security systems for inhibiting theft of goods from retail stores
US6486782B1 (en) 2000-07-07 2002-11-26 3M Innovative Properties Device for changing the status of dual status magnetic electronic article surveillance markers
US6778087B2 (en) 2001-06-15 2004-08-17 3M Innovative Properties Company Dual axis magnetic field EAS device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1599120A (en) * 1978-05-19 1981-09-30 Philips Electronic Associated Detection system
US4498076A (en) * 1982-05-10 1985-02-05 Lichtblau G J Resonant tag and deactivator for use in an electronic security system
US4728938A (en) * 1986-01-10 1988-03-01 Checkpoint Systems, Inc. Security tag deactivation system
ATE86403T1 (en) * 1987-04-23 1993-03-15 Actron Entwicklungs Ag METHOD OF DEACTIVATING A RESONANCE TAG AND CIRCUIT ARRANGEMENT FOR CARRYING OUT THE METHOD.

Also Published As

Publication number Publication date
EP0454021A1 (en) 1991-10-30
JP2910873B2 (en) 1999-06-23
EP0454021B1 (en) 1997-01-08
ES2095267T3 (en) 1997-02-16
ATE147527T1 (en) 1997-01-15
JPH04229394A (en) 1992-08-18
DK0454021T3 (en) 1997-06-16

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee