AU448021B2 - Electronic surveillance system - Google Patents

Electronic surveillance system

Info

Publication number
AU448021B2
AU448021B2 AU12502/70A AU1250270A AU448021B2 AU 448021 B2 AU448021 B2 AU 448021B2 AU 12502/70 A AU12502/70 A AU 12502/70A AU 1250270 A AU1250270 A AU 1250270A AU 448021 B2 AU448021 B2 AU 448021B2
Authority
AU
Australia
Prior art keywords
surveillance system
electronic surveillance
electronic
surveillance
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
Application number
AU12502/70A
Other versions
AU1250270A (en
Inventor
HAROLD COLE and RICHARD VAUGHAN PETER
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.)
Unisearch Ltd
Original Assignee
Unisearch Ltd
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 Unisearch Ltd filed Critical Unisearch Ltd
Priority to AU12502/70A priority Critical patent/AU448021B2/en
Publication of AU1250270A publication Critical patent/AU1250270A/en
Application granted granted Critical
Publication of AU448021B2 publication Critical patent/AU448021B2/en
Expired 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
    • G08B13/2422—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 acoustic or microwave 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
    • G08B13/2428—Tag details
    • G08B13/2437—Tag layered structure, processes for making layered tags

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
AU12502/70A 1970-03-12 1970-03-12 Electronic surveillance system Expired AU448021B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU12502/70A AU448021B2 (en) 1970-03-12 1970-03-12 Electronic surveillance system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU12502/70A AU448021B2 (en) 1970-03-12 1970-03-12 Electronic surveillance system

Publications (2)

Publication Number Publication Date
AU1250270A AU1250270A (en) 1971-09-16
AU448021B2 true AU448021B2 (en) 1974-04-18

Family

ID=3703006

Family Applications (1)

Application Number Title Priority Date Filing Date
AU12502/70A Expired AU448021B2 (en) 1970-03-12 1970-03-12 Electronic surveillance system

Country Status (1)

Country Link
AU (1) AU448021B2 (en)

Also Published As

Publication number Publication date
AU1250270A (en) 1971-09-16

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