DE59206809D1 - Detektionsvorrichtung für Warendiebstahlsicherungsetiketten - Google Patents

Detektionsvorrichtung für Warendiebstahlsicherungsetiketten

Info

Publication number
DE59206809D1
DE59206809D1 DE59206809T DE59206809T DE59206809D1 DE 59206809 D1 DE59206809 D1 DE 59206809D1 DE 59206809 T DE59206809 T DE 59206809T DE 59206809 T DE59206809 T DE 59206809T DE 59206809 D1 DE59206809 D1 DE 59206809D1
Authority
DE
Germany
Prior art keywords
pairs
frequency
transmitting antennas
case
sweep cycles
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
DE59206809T
Other languages
English (en)
Inventor
Burckart Kind
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 DE59206809D1 publication Critical patent/DE59206809D1/de
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
    • 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
    • G08B13/2477—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
    • G08B13/2488—Timing issues, e.g. synchronising measures to avoid signal collision, with multiple emitters or a single emitter and receiver

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Burglar Alarm Systems (AREA)
DE59206809T 1991-10-31 1992-10-15 Detektionsvorrichtung für Warendiebstahlsicherungsetiketten Expired - Fee Related DE59206809D1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH318591 1991-10-31
CH109892 1992-04-03
CH244692 1992-08-04

Publications (1)

Publication Number Publication Date
DE59206809D1 true DE59206809D1 (de) 1996-08-29

Family

ID=27172693

Family Applications (1)

Application Number Title Priority Date Filing Date
DE59206809T Expired - Fee Related DE59206809D1 (de) 1991-10-31 1992-10-15 Detektionsvorrichtung für Warendiebstahlsicherungsetiketten

Country Status (5)

Country Link
US (1) US5337040A (de)
EP (1) EP0541480B1 (de)
JP (1) JP2821068B2 (de)
AT (1) ATE140813T1 (de)
DE (1) DE59206809D1 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0589046B1 (de) * 1992-02-18 1998-09-23 Citizen Watch Co. Ltd. Datenträgersystem
US5610584A (en) * 1995-05-02 1997-03-11 Schrade; Chester R. Detection of goods on the bottom rack of a cart
US5874902A (en) * 1996-07-29 1999-02-23 International Business Machines Corporation Radio frequency identification transponder with electronic circuit enabling/disabling capability
DE19722078A1 (de) * 1997-05-27 1998-12-03 Meto International Gmbh System zur Überwachung von elektromagnetisch gesicherten Artikeln in mehreren Überwachungszonen
US5990791A (en) * 1997-10-22 1999-11-23 William B. Spargur Anti-theft detection system
EP1393445B1 (de) * 2001-02-08 2010-05-05 Sensormatic Electronics, LLC Automatische drahtlose synchronisation von elektronischen artikelüberwachungssystemen
US9201556B2 (en) 2006-11-08 2015-12-01 3M Innovative Properties Company Touch location sensing system and method employing sensor data fitting to a predefined curve
US8207944B2 (en) * 2006-12-19 2012-06-26 3M Innovative Properties Company Capacitance measuring circuit and method
US20080149401A1 (en) * 2006-12-20 2008-06-26 3M Innovative Properties Company Untethered stylus employing separate communication channels
US7956851B2 (en) * 2006-12-20 2011-06-07 3M Innovative Properties Company Self-tuning drive source employing input impedance phase detection
US8243049B2 (en) 2006-12-20 2012-08-14 3M Innovative Properties Company Untethered stylus employing low current power converter
US8040329B2 (en) 2006-12-20 2011-10-18 3M Innovative Properties Company Frequency control circuit for tuning a resonant circuit of an untethered device
US8134542B2 (en) 2006-12-20 2012-03-13 3M Innovative Properties Company Untethered stylus employing separate communication and power channels
US7787259B2 (en) * 2006-12-28 2010-08-31 3M Innovative Properties Company Magnetic shield for use in a location sensing system
US8040330B2 (en) * 2006-12-28 2011-10-18 3M Innovative Properties Company Untethered stylus empolying multiple reference frequency communication
US8089474B2 (en) * 2006-12-28 2012-01-03 3M Innovative Properties Company Location sensing system and method employing adaptive drive signal adjustment

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4356477A (en) * 1980-09-30 1982-10-26 Jan Vandebult FM/AM Electronic security system
US4309697A (en) * 1980-10-02 1982-01-05 Sensormatic Electronics Corporation Magnetic surveillance system with odd-even harmonic and phase discrimination
US4623877A (en) * 1983-06-30 1986-11-18 Knogo Corporation Method and apparatus for detection of targets in an interrogation zone
DK161227C (da) * 1986-01-27 1991-11-25 Antonson Security Denmark Aps Apparat til synkronisering af tyveridetektorer
US4870391A (en) * 1988-04-05 1989-09-26 Knogo Corporation Multiple frequency theft detection system
NL9000186A (nl) * 1990-01-25 1991-08-16 Nedap Nv Deactiveerinrichting.

Also Published As

Publication number Publication date
JP2821068B2 (ja) 1998-11-05
US5337040A (en) 1994-08-09
EP0541480A1 (de) 1993-05-12
ATE140813T1 (de) 1996-08-15
JPH0620165A (ja) 1994-01-28
EP0541480B1 (de) 1996-07-24

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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