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CH495596A - Detection device - Google Patents

Detection device

Info

Publication number
CH495596A
CH495596A CH960968A CH960968A CH495596A CH 495596 A CH495596 A CH 495596A CH 960968 A CH960968 A CH 960968A CH 960968 A CH960968 A CH 960968A CH 495596 A CH495596 A CH 495596A
Authority
CH
Switzerland
Prior art keywords
detection device
detection
Prior art date
Application number
CH960968A
Other languages
French (fr)
Inventor
Diver John
Original Assignee
Diver John
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 Diver John filed Critical Diver John
Publication of CH495596A publication Critical patent/CH495596A/en

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
    • G08B13/2408—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 ferromagnetic 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
    • G08B13/2477—Antenna 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)
CH960968A 1967-06-27 1968-06-27 Detection device CH495596A (en)

Applications Claiming Priority (4)

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

Publications (1)

Publication Number Publication Date
CH495596A true CH495596A (en) 1970-08-31

Family

ID=27448766

Family Applications (1)

Application Number Title Priority Date Filing Date
CH960968A CH495596A (en) 1967-06-27 1968-06-27 Detection device

Country Status (7)

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

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
NL6809085A (en) 1968-12-30
LU56333A1 (en) 1968-09-30
DE1774444A1 (en) 1971-06-24
BE717228A (en) 1968-12-02
FR1571102A (en) 1969-06-13
GB1234762A (en) 1971-06-09

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Legal Events

Date Code Title Description
PL Patent ceased