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GB1330483A - Apparatus and marker for detecting the status and identity of objects - Google Patents

Apparatus and marker for detecting the status and identity of objects

Info

Publication number
GB1330483A
GB1330483A GB1599770A GB1599770A GB1330483A GB 1330483 A GB1330483 A GB 1330483A GB 1599770 A GB1599770 A GB 1599770A GB 1599770 A GB1599770 A GB 1599770A GB 1330483 A GB1330483 A GB 1330483A
Authority
GB
United Kingdom
Prior art keywords
marker
identity
status
objects
detecting
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
GB1599770A
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
Priority claimed from GB3368870A external-priority patent/GB1330481A/en
Publication of GB1330483A publication Critical patent/GB1330483A/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
    • G08B13/2465—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)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • Signal Processing (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

1330483 Theft alarms MINNESOTA MINING & MFG CO 10 July 1970 [11 July 1969 17 Dec 1969 20 June 1970] 15997/73 Divided out of 1330481 Heading G4N The subject-matter of this Specification is identical with that described in Specification 1,330,481 but the claims relate to a ferromagnetic marker having specified characteristics or dimensions.
GB1599770A 1969-07-11 1970-07-10 Apparatus and marker for detecting the status and identity of objects Expired GB1330483A (en)

Applications Claiming Priority (4)

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
GB3368870A GB1330481A (en) 1969-07-11 1970-07-10 Method and apparatus for detecting the status and identity of objects

Publications (1)

Publication Number Publication Date
GB1330483A true GB1330483A (en) 1973-09-19

Family

ID=27448833

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1599673A Expired GB1330482A (en) 1969-07-11 1970-07-10 Apparatus for detecting the status and identity of objects
GB1599770A Expired GB1330483A (en) 1969-07-11 1970-07-10 Apparatus and marker for detecting the status and identity of objects

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1599673A Expired GB1330482A (en) 1969-07-11 1970-07-10 Apparatus for detecting the status and identity of objects

Country Status (1)

Country Link
GB (2) GB1330482A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2167627A (en) * 1984-11-26 1986-05-29 Sensormatic Electronics Corp Method system and apparatus for use in article surveillance

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2167627A (en) * 1984-11-26 1986-05-29 Sensormatic Electronics Corp Method system and apparatus for use in article surveillance
GB2167627B (en) * 1984-11-26 1989-06-14 Sensormatic Electronics Corp Method system and apparatus for use in article surveillance

Also Published As

Publication number Publication date
GB1330482A (en) 1973-09-19

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Legal Events

Date Code Title Description
414F Notice of opposition given (sect. 14/1949)
414B Case decided by the comptroller ** grants allowed (sect. 14/1949)
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years