BE717228A - - Google Patents

Info

Publication number
BE717228A
BE717228A BE717228DA BE717228A BE 717228 A BE717228 A BE 717228A BE 717228D A BE717228D A BE 717228DA BE 717228 A BE717228 A BE 717228A
Authority
BE
Belgium
Application number
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 filed Critical
Publication of BE717228A publication Critical patent/BE717228A/xx

Links

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00Burglar, theft or intruder alarms
    • G08B13/22Electrical actuation
    • G08B13/24Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402Electronic 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
    • G08B13/2405Electronic 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
    • G08B13/2408Electronic 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
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00Burglar, theft or intruder alarms
    • G08B13/22Electrical actuation
    • G08B13/24Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402Electronic 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
    • G08B13/2465Aspects related to the EAS system, e.g. system components other than tags
    • G08B13/2468Antenna in system and the related signal processing
    • G08B13/2477Antenna or antenna activator circuit

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)
  • Geophysics And Detection Of Objects (AREA)
  • Burglar Alarm Systems (AREA)
BE717228D 1967-06-27 1968-06-27 BE717228A (en:Method)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB2953367 1967-06-27
GB5021867A GB1234762A (en) 1967-06-27 1967-06-27 Detection apparatus
GB3714667 1967-08-12
GB4322067 1967-09-22

Publications (1)

Publication Number Publication Date
BE717228A true BE717228A (en:Method) 1968-12-02

Family

ID=27448766

Family Applications (1)

Application Number Title Priority Date Filing Date
BE717228D BE717228A (en:Method) 1967-06-27 1968-06-27

Country Status (7)

Country Link
BE (1) BE717228A (en:Method)
CH (1) CH495596A (en:Method)
DE (1) DE1774444A1 (en:Method)
FR (1) FR1571102A (en:Method)
GB (1) GB1234762A (en:Method)
LU (1) LU56333A1 (en:Method)
NL (1) NL6809085A (en:Method)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2154350A (en) * 1984-02-17 1985-09-04 Standard Telephones Cables Ltd Preventing misuse of information stored on computer tapes and the like

Also Published As

Publication number Publication date
FR1571102A (en:Method) 1969-06-13
GB1234762A (en) 1971-06-09
DE1774444A1 (de) 1971-06-24
CH495596A (fr) 1970-08-31
NL6809085A (en:Method) 1968-12-30
LU56333A1 (en:Method) 1968-09-30

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