ZA844812B - Resonant tag and deactivator for use in an electronic security system - Google Patents

Resonant tag and deactivator for use in an electronic security system

Info

Publication number
ZA844812B
ZA844812B ZA844812A ZA844812A ZA844812B ZA 844812 B ZA844812 B ZA 844812B ZA 844812 A ZA844812 A ZA 844812A ZA 844812 A ZA844812 A ZA 844812A ZA 844812 B ZA844812 B ZA 844812B
Authority
ZA
South Africa
Prior art keywords
deactivator
security system
electronic security
resonant tag
resonant
Prior art date
Application number
ZA844812A
Other languages
English (en)
Inventor
G J Lichtblau
Original Assignee
G J Lichtblau
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=ZA844812(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from PCT/US1984/000613 external-priority patent/WO1985004975A1/en
Application filed by G J Lichtblau filed Critical G J Lichtblau
Publication of ZA844812B publication Critical patent/ZA844812B/xx

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)
ZA844812A 1984-04-23 1984-06-25 Resonant tag and deactivator for use in an electronic security system ZA844812B (en)

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 (1)

Publication Number Publication Date
ZA844812B true ZA844812B (en) 1985-02-27

Family

ID=22182123

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA844812A ZA844812B (en) 1984-04-23 1984-06-25 Resonant tag and deactivator for use in an electronic security system

Country Status (8)

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

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4846922A (en) * 1986-09-29 1989-07-11 Monarch Marking Systems, Inc. Method of making deactivatable tags
AU613817B2 (en) * 1986-09-29 1991-08-08 Sensormatic Electronics Corporation Deactivatable alarm tag and methods of making and deactivating it
US5103210A (en) * 1990-06-27 1992-04-07 Checkpoint Systems, Inc. Activatable/deactivatable security tag for use with an electronic security system
CH682265A5 (xx) * 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

Family Cites Families (8)

* 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
JPS4860499A (xx) * 1971-11-29 1973-08-24
US3810147A (en) * 1971-12-30 1974-05-07 G Lichtblau Electronic security system
JPS4877695A (xx) * 1971-12-30 1973-10-18
JPS5018200A (xx) * 1973-06-18 1975-02-26
US3938044A (en) * 1973-11-14 1976-02-10 Lichtblau G J Antenna apparatus for an electronic security system
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
AU2823384A (en) 1985-11-15
DK165914B (da) 1993-02-08
JPH0340439B2 (xx) 1991-06-18
FI855116A (fi) 1985-12-20
JPS61501947A (ja) 1986-09-04
MC1736A1 (fr) 1986-12-15
FI84668B (fi) 1991-09-13
DK165914C (da) 1993-07-05
FI84668C (fi) 1991-12-27
FI855116A0 (fi) 1985-12-20
NO169411C (no) 1992-06-17
NO855242L (no) 1985-12-23
NO169411B (no) 1992-03-09
BR8407314A (pt) 1986-04-15
AU584306B2 (en) 1989-05-25
DK595785D0 (da) 1985-12-20
DK595785A (da) 1985-12-20

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