JPH02284294A - 電子式盗難防止装置およびその運転方法 - Google Patents

電子式盗難防止装置およびその運転方法

Info

Publication number
JPH02284294A
JPH02284294A JP6992190A JP6992190A JPH02284294A JP H02284294 A JPH02284294 A JP H02284294A JP 6992190 A JP6992190 A JP 6992190A JP 6992190 A JP6992190 A JP 6992190A JP H02284294 A JPH02284294 A JP H02284294A
Authority
JP
Japan
Prior art keywords
transmitter
receiver
signal
label
pair
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.)
Pending
Application number
JP6992190A
Other languages
English (en)
Japanese (ja)
Inventor
Markus Martinides
マルクス・マルテイニデス
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
Publication of JPH02284294A publication Critical patent/JPH02284294A/ja
Pending 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
    • G08B13/2488—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)
  • Mobile Radio Communication Systems (AREA)
JP6992190A 1989-03-22 1990-03-22 電子式盗難防止装置およびその運転方法 Pending JPH02284294A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1078/89-0 1989-03-22
CH107889A CH681051A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1989-03-22 1989-03-22

Publications (1)

Publication Number Publication Date
JPH02284294A true JPH02284294A (ja) 1990-11-21

Family

ID=4201949

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6992190A Pending JPH02284294A (ja) 1989-03-22 1990-03-22 電子式盗難防止装置およびその運転方法

Country Status (4)

Country Link
EP (1) EP0388609B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPH02284294A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH681051A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE59010785D1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3740742A (en) * 1971-05-11 1973-06-19 T Thompson Method and apparatus for actuating an electric circuit
US4215342A (en) * 1978-03-31 1980-07-29 Intex Inc. Merchandise tagging technique
US4476459A (en) * 1981-10-23 1984-10-09 Knogo Corporation Theft detection method and apparatus in which the decay of a resonant circuit is detected
NL8202951A (nl) * 1982-07-21 1984-02-16 Nedap Nv Absorptiedetectiestelsel.
US4531117A (en) * 1983-07-05 1985-07-23 Minnesota Mining And Manufacturing Company Variable frequency RF electronic surveillance system
US4667185A (en) * 1985-12-06 1987-05-19 Minnesota Mining And Manufacturing Company Wireless synchronization system for electronic article surveillance system

Also Published As

Publication number Publication date
DE59010785D1 (de) 1998-02-05
CH681051A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1992-12-31
EP0388609B1 (de) 1997-12-29
EP0388609A3 (de) 1991-03-20
EP0388609A2 (de) 1990-09-26

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