CA2272145C - Marqueurs de surveillance electroniques d'articles s'appliquant directement a des support d'enregistrement optiques - Google Patents

Marqueurs de surveillance electroniques d'articles s'appliquant directement a des support d'enregistrement optiques Download PDF

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Publication number
CA2272145C
CA2272145C CA002272145A CA2272145A CA2272145C CA 2272145 C CA2272145 C CA 2272145C CA 002272145 A CA002272145 A CA 002272145A CA 2272145 A CA2272145 A CA 2272145A CA 2272145 C CA2272145 C CA 2272145C
Authority
CA
Canada
Prior art keywords
marker
recorded media
optically recorded
signal
elements
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 - Fee Related
Application number
CA002272145A
Other languages
English (en)
Other versions
CA2272145A1 (fr
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 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
Priority claimed from US08/587,721 external-priority patent/US5699047A/en
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of CA2272145A1 publication Critical patent/CA2272145A1/fr
Application granted granted Critical
Publication of CA2272145C publication Critical patent/CA2272145C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Burglar Alarm Systems (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
CA002272145A 1996-01-19 1997-01-14 Marqueurs de surveillance electroniques d'articles s'appliquant directement a des support d'enregistrement optiques Expired - Fee Related CA2272145C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/587,721 1996-01-19
US08/587,721 US5699047A (en) 1996-01-19 1996-01-19 Electronic article surveillance markers for direct application to optically recorded media
CA002241743A CA2241743C (fr) 1996-01-19 1997-01-14 Marqueurs de surveillance electroniques d'articles s'appliquant directement a des supports d'enregistrement optiques

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002241743A Division CA2241743C (fr) 1996-01-19 1997-01-14 Marqueurs de surveillance electroniques d'articles s'appliquant directement a des supports d'enregistrement optiques

Publications (2)

Publication Number Publication Date
CA2272145A1 CA2272145A1 (fr) 1997-07-24
CA2272145C true CA2272145C (fr) 2006-01-10

Family

ID=29712990

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002272145A Expired - Fee Related CA2272145C (fr) 1996-01-19 1997-01-14 Marqueurs de surveillance electroniques d'articles s'appliquant directement a des support d'enregistrement optiques

Country Status (1)

Country Link
CA (1) CA2272145C (fr)

Also Published As

Publication number Publication date
CA2272145A1 (fr) 1997-07-24

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Effective date: 20170116