JPH0340439B2 - - Google Patents

Info

Publication number
JPH0340439B2
JPH0340439B2 JP59502086A JP50208684A JPH0340439B2 JP H0340439 B2 JPH0340439 B2 JP H0340439B2 JP 59502086 A JP59502086 A JP 59502086A JP 50208684 A JP50208684 A JP 50208684A JP H0340439 B2 JPH0340439 B2 JP H0340439B2
Authority
JP
Japan
Prior art keywords
circuit
resonant
deactivation
frequency
conductive
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 - Lifetime
Application number
JP59502086A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61501947A (ja
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22182123&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=JPH0340439(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed filed Critical
Priority claimed from PCT/US1984/000613 external-priority patent/WO1985004975A1/en
Publication of JPS61501947A publication Critical patent/JPS61501947A/ja
Publication of JPH0340439B2 publication Critical patent/JPH0340439B2/ja
Granted 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
JP59502086A 1984-04-23 1984-04-23 電子的に検知可能で不作動化可能な標識及びその標識を用いた電子安全装置 Granted JPS61501947A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1984/000613 WO1985004975A1 (en) 1982-05-10 1984-04-23 Resonant tag and deactivator for use in an electronic security system

Publications (2)

Publication Number Publication Date
JPS61501947A JPS61501947A (ja) 1986-09-04
JPH0340439B2 true JPH0340439B2 (sv) 1991-06-18

Family

ID=22182123

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59502086A Granted JPS61501947A (ja) 1984-04-23 1984-04-23 電子的に検知可能で不作動化可能な標識及びその標識を用いた電子安全装置

Country Status (8)

Country Link
JP (1) JPS61501947A (sv)
AU (1) AU584306B2 (sv)
BR (1) BR8407314A (sv)
DK (1) DK165914C (sv)
FI (1) FI84668C (sv)
MC (1) MC1736A1 (sv)
NO (1) NO169411C (sv)
ZA (1) ZA844812B (sv)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU613817B2 (en) * 1986-09-29 1991-08-08 Sensormatic Electronics Corporation Deactivatable alarm tag and methods of making and deactivating it
US4846922A (en) * 1986-09-29 1989-07-11 Monarch Marking Systems, Inc. Method of making deactivatable tags
US5103210A (en) * 1990-06-27 1992-04-07 Checkpoint Systems, Inc. Activatable/deactivatable security tag for use with an electronic security system
CH682265A5 (sv) * 1991-02-12 1993-08-13 Actron Entwicklungs Ag
US5341125A (en) * 1992-01-15 1994-08-23 Sensormatic Electronics Corporation Deactivating device for deactivating EAS dual status magnetic tags

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4860499A (sv) * 1971-11-29 1973-08-24
JPS4877695A (sv) * 1971-12-30 1973-10-18
JPS5018200A (sv) * 1973-06-18 1975-02-26
JPS5230836A (en) * 1975-09-03 1977-03-08 Tokai Pulp Kk Process for producing adhesives based on modified ureas
JPS5242393A (en) * 1975-09-30 1977-04-01 Dainippon Printing Co Ltd Electronic type detector

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3624631A (en) * 1970-04-27 1971-11-30 Sanders Associates Inc Pilferage control system
US3810147A (en) * 1971-12-30 1974-05-07 G Lichtblau Electronic security system
US3938044A (en) * 1973-11-14 1976-02-10 Lichtblau G J Antenna apparatus for an electronic security system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4860499A (sv) * 1971-11-29 1973-08-24
JPS4877695A (sv) * 1971-12-30 1973-10-18
JPS5018200A (sv) * 1973-06-18 1975-02-26
JPS5230836A (en) * 1975-09-03 1977-03-08 Tokai Pulp Kk Process for producing adhesives based on modified ureas
JPS5242393A (en) * 1975-09-30 1977-04-01 Dainippon Printing Co Ltd Electronic type detector

Also Published As

Publication number Publication date
ZA844812B (en) 1985-02-27
NO169411B (no) 1992-03-09
DK165914C (da) 1993-07-05
AU584306B2 (en) 1989-05-25
FI855116A (fi) 1985-12-20
BR8407314A (pt) 1986-04-15
MC1736A1 (fr) 1986-12-15
JPS61501947A (ja) 1986-09-04
NO169411C (no) 1992-06-17
FI855116A0 (fi) 1985-12-20
DK595785D0 (da) 1985-12-20
AU2823384A (en) 1985-11-15
DK165914B (da) 1993-02-08
DK595785A (da) 1985-12-20
NO855242L (no) 1985-12-23
FI84668B (fi) 1991-09-13
FI84668C (sv) 1991-12-27

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term