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HK1024771A1 - Shoplifting detection label deactivator with combined excitation-deactivation coil - Google Patents

Shoplifting detection label deactivator with combined excitation-deactivation coil Download PDF

Info

Publication number
HK1024771A1
HK1024771A1 HK00101577A HK00101577A HK1024771A1 HK 1024771 A1 HK1024771 A1 HK 1024771A1 HK 00101577 A HK00101577 A HK 00101577A HK 00101577 A HK00101577 A HK 00101577A HK 1024771 A1 HK1024771 A1 HK 1024771A1
Authority
HK
Hong Kong
Prior art keywords
detection
deactivating
deactivation
amplifier
coil
Prior art date
Application number
HK00101577A
Other languages
German (de)
English (en)
French (fr)
Chinese (zh)
Other versions
HK1024771B (en
Inventor
A. Drew Douglas
W. Zschirnt Joerg
Original Assignee
传感电子有限责任公司
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 传感电子有限责任公司 filed Critical 传感电子有限责任公司
Publication of HK1024771A1 publication Critical patent/HK1024771A1/en
Publication of HK1024771B publication Critical patent/HK1024771B/en

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
    • G08B13/2408—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 ferromagnetic tags
    • G08B13/2411—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
    • G08B13/2465—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
    • G08B13/2468—Antenna in system and the related signal processing
    • G08B13/2477—Antenna or antenna activator circuit

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)
  • Arrangements For Transmission Of Measured Signals (AREA)
HK00101577.9A 1996-12-02 1997-10-29 Shoplifting detection label deactivator with combined excitation-deactivation coil HK1024771B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US758957 1996-12-02
US08/758,957 US5796339A (en) 1996-12-02 1996-12-02 Shoplifting detection label deactivator with combined excitation-deactivation coil
PCT/US1997/020437 WO1998025244A1 (en) 1996-12-02 1997-10-29 Shoplifting detection label deactivator with combined excitation-deactivation coil

Publications (2)

Publication Number Publication Date
HK1024771A1 true HK1024771A1 (en) 2000-10-20
HK1024771B HK1024771B (en) 2003-11-21

Family

ID=

Also Published As

Publication number Publication date
EP0941528A4 (en) 2002-04-17
EP0941528A1 (en) 1999-09-15
EP0941528B1 (en) 2003-06-18
CA2273359A1 (en) 1998-06-11
AU723370B2 (en) 2000-08-24
JP2001505336A (ja) 2001-04-17
AR010326A1 (es) 2000-06-07
AU5174898A (en) 1998-06-29
BR9714367A (pt) 2000-03-21
CA2273359C (en) 2006-12-19
DE69722955T2 (de) 2004-05-13
WO1998025244A1 (en) 1998-06-11
JP3877781B2 (ja) 2007-02-07
BR9714367B1 (pt) 2011-08-23
US5796339A (en) 1998-08-18
DE69722955D1 (de) 2003-07-24

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Legal Events

Date Code Title Description
AS Change of ownership

Owner name: SENSORMATIC ELECTRONICS CORPORATION

Free format text: FORMER OWNER(S): SENSORMATIC ELECTRONICS CORPORATION

PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20111029