CA2241743A1 - Electronic article surveillance markers for direct application to optically recorded media - Google Patents

Electronic article surveillance markers for direct application to optically recorded media

Info

Publication number
CA2241743A1
CA2241743A1 CA2241743A CA2241743A CA2241743A1 CA 2241743 A1 CA2241743 A1 CA 2241743A1 CA 2241743 A CA2241743 A CA 2241743A CA 2241743 A CA2241743 A CA 2241743A CA 2241743 A1 CA2241743 A1 CA 2241743A1
Authority
CA
Canada
Prior art keywords
marker
recorded media
optically recorded
direct application
electronic article
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.)
Granted
Application number
CA2241743A
Other languages
French (fr)
Other versions
CA2241743C (en
Inventor
Ching-Long Tsai
Chester Piotrowski
Rita M. Lunderville
Norman L. Koning
John G. Fitzgerald
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 Company
Ching-Long Tsai
Chester Piotrowski
Rita M. Lunderville
Norman L. Koning
John G. Fitzgerald
3M Company
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 Company, Ching-Long Tsai, Chester Piotrowski, Rita M. Lunderville, Norman L. Koning, John G. Fitzgerald, 3M Company filed Critical Minnesota Mining And Manufacturing Company
Priority to CA002272145A priority Critical patent/CA2272145C/en
Publication of CA2241743A1 publication Critical patent/CA2241743A1/en
Application granted granted Critical
Publication of CA2241743C publication Critical patent/CA2241743C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/28—Indicating or preventing prior or unauthorised use, e.g. cassettes with sealing or locking means, write-protect devices for discs
    • G11B23/286—Antitheft arrangements, e.g. Electronic Article Surveillance [EAS] tags
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V15/00—Tags attached to, or associated with, an object, in order to enable detection of the object
    • 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
    • G08B13/2428—Tag details
    • G08B13/2434—Tag housing and attachment 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
    • G08B13/2428—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
    • G08B13/244—Tag manufacturing, e.g. continuous manufacturing processes
    • 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
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/0014—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form
    • G11B23/0021—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture record carriers not specifically of filamentary or web form discs
    • G11B23/0028—Details
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/30—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture with provision for auxiliary signals
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material

Abstract

An Electronic Article Surveillance (EAS) marker (10) is adapted for direct application to optically recorded media such as compact disks, CD-ROM's, laser disks, digital video disks, and the like. The marker includes a support sheet (12) and one or more marker elements (16, 18) which are positioned such that the mass distribution of the marker is symmetrically disposed about the center of the marker. This ensures that when the marker is properly positioned on the optically recorded media, the marker does not adversely affect the mechanical balance of the media.
CA002241743A 1996-01-19 1997-01-14 Electronic article surveillance markers for direct application to optically recorded media Expired - Fee Related CA2241743C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002272145A CA2272145C (en) 1996-01-19 1997-01-14 Electronic article surveillance markers for direct application to optically recorded media

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/587,721 US5699047A (en) 1996-01-19 1996-01-19 Electronic article surveillance markers for direct application to optically recorded media
US08/587,721 1996-01-19
PCT/US1997/000514 WO1997026564A1 (en) 1996-01-19 1997-01-14 Electronic article surveillance markers for direct application to optically recorded media

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA002272145A Division CA2272145C (en) 1996-01-19 1997-01-14 Electronic article surveillance markers for direct application to optically recorded media

Publications (2)

Publication Number Publication Date
CA2241743A1 true CA2241743A1 (en) 1997-07-24
CA2241743C CA2241743C (en) 1999-06-15

Family

ID=24350933

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002241743A Expired - Fee Related CA2241743C (en) 1996-01-19 1997-01-14 Electronic article surveillance markers for direct application to optically recorded media

Country Status (11)

Country Link
US (4) US5699047A (en)
EP (3) EP2112531A2 (en)
JP (1) JP3422797B2 (en)
KR (1) KR100409059B1 (en)
CN (2) CN1253727C (en)
BR (1) BR9707288A (en)
CA (1) CA2241743C (en)
DE (2) DE69716032T2 (en)
ES (2) ES2335191T3 (en)
NZ (1) NZ326703A (en)
WO (1) WO1997026564A1 (en)

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Also Published As

Publication number Publication date
US6097291A (en) 2000-08-01
DE69716032T2 (en) 2003-08-14
ES2335191T3 (en) 2010-03-23
WO1997026564A1 (en) 1997-07-24
US5699047A (en) 1997-12-16
EP1186911B1 (en) 2009-10-28
JP2000505570A (en) 2000-05-09
EP1186911A1 (en) 2002-03-13
DE69739637D1 (en) 2009-12-10
CN1209879A (en) 1999-03-03
AU709228B2 (en) 1999-08-26
CN1253727C (en) 2006-04-26
US5825292A (en) 1998-10-20
KR19990077312A (en) 1999-10-25
JP3422797B2 (en) 2003-06-30
EP0875007A1 (en) 1998-11-04
BR9707288A (en) 1999-07-20
KR100409059B1 (en) 2004-03-22
CN1479115A (en) 2004-03-03
AU1534297A (en) 1997-08-11
US5939985A (en) 1999-08-17
DE69716032D1 (en) 2002-11-07
EP0875007B1 (en) 2002-10-02
CA2241743C (en) 1999-06-15
CN1160583C (en) 2004-08-04
ES2180921T3 (en) 2003-02-16
NZ326703A (en) 1999-10-28
EP2112531A2 (en) 2009-10-28

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Effective date: 20170116