FR2055019A5 - - Google Patents

Info

Publication number
FR2055019A5
FR2055019A5 FR7025727A FR7025727A FR2055019A5 FR 2055019 A5 FR2055019 A5 FR 2055019A5 FR 7025727 A FR7025727 A FR 7025727A FR 7025727 A FR7025727 A FR 7025727A FR 2055019 A5 FR2055019 A5 FR 2055019A5
Authority
FR
France
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
FR7025727A
Other languages
French (fr)
Inventor
J T Elder
D A Whrigt
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Application granted granted Critical
Publication of FR2055019A5 publication Critical patent/FR2055019A5/fr
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
    • G08B13/2465—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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • 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
    • 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
    • G08B13/2442—Tag materials and material properties thereof, e.g. magnetic material details
    • 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
    • G08B13/2474—Antenna or antenna activator geometry, arrangement or layout

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Security & Cryptography (AREA)
  • Automation & Control Theory (AREA)
  • Signal Processing (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Biochemistry (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Burglar Alarm Systems (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Radar Systems Or Details Thereof (AREA)
FR7025727A 1969-07-11 1970-07-10 Expired FR2055019A5 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US84097369A 1969-07-11 1969-07-11
US88587469A 1969-12-17 1969-12-17
US5084070A 1970-06-29 1970-06-29

Publications (1)

Publication Number Publication Date
FR2055019A5 true FR2055019A5 (de) 1971-05-07

Family

ID=27367841

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7025727A Expired FR2055019A5 (de) 1969-07-11 1970-07-10

Country Status (7)

Country Link
JP (1) JPS511400B1 (de)
DE (1) DE2035356C3 (de)
FR (1) FR2055019A5 (de)
GB (1) GB1330481A (de)
HK (1) HK36077A (de)
NL (2) NL177945C (de)
SE (1) SE377387B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2161773A1 (de) * 1971-11-29 1973-07-13 See International
FR2398357A1 (fr) * 1977-07-19 1979-02-16 Nedap Nv Dispositif de detection electromagnetique

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4134538A (en) * 1976-03-18 1979-01-16 La Societe Metalimphy Process and apparatus for identification of objects
GB2247381B (en) * 1987-08-28 1992-08-05 Sensormatic Electronics Corp An electronic article surveillance system
US5541577A (en) * 1995-05-26 1996-07-30 Consolidated Graphic Materials, Inc. Electromagnetic asset protection system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR763681A (fr) * 1933-11-10 1934-05-04 Procédé de repérage des objets par modification d'un champ magnétique
US3292080A (en) * 1964-11-23 1966-12-13 Emmanuel M Trikilis System and method for preventing pilferage by detection of magnetic fields
US3500373A (en) 1966-05-06 1970-03-10 Nat Bank Of North America The Method and apparatus for article theft detection

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2161773A1 (de) * 1971-11-29 1973-07-13 See International
FR2398357A1 (fr) * 1977-07-19 1979-02-16 Nedap Nv Dispositif de detection electromagnetique

Also Published As

Publication number Publication date
NL180359C (nl) 1987-02-02
GB1330481A (en) 1973-09-19
DE2035356B2 (de) 1977-06-08
NL177945C (nl) 1985-12-16
HK36077A (en) 1977-07-15
DE2035356C3 (de) 1984-06-28
DE2035356A1 (de) 1971-02-04
SE377387B (de) 1975-06-30
NL177945B (nl) 1985-07-16
NL8401703A (nl) 1984-09-03
JPS511400B1 (de) 1976-01-16
NL7010224A (de) 1971-01-13

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