SE9603484L - Label for marking and remote detection of objects - Google Patents

Label for marking and remote detection of objects

Info

Publication number
SE9603484L
SE9603484L SE9603484A SE9603484A SE9603484L SE 9603484 L SE9603484 L SE 9603484L SE 9603484 A SE9603484 A SE 9603484A SE 9603484 A SE9603484 A SE 9603484A SE 9603484 L SE9603484 L SE 9603484L
Authority
SE
Sweden
Prior art keywords
magnetic
label
marking
objects
permeability
Prior art date
Application number
SE9603484A
Other languages
Swedish (sv)
Other versions
SE9603484D0 (en
Inventor
Carl Tyren
Original Assignee
Rso Corp
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 Rso Corp filed Critical Rso Corp
Priority to SE9603484A priority Critical patent/SE9603484L/en
Publication of SE9603484D0 publication Critical patent/SE9603484D0/en
Priority to PCT/SE1997/001572 priority patent/WO1998013946A2/en
Publication of SE9603484L publication Critical patent/SE9603484L/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
    • G08B13/2414—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 inductive 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

A label for marking and remote detection of objects has at least one resonant circuit (10) with an inductive means (12), at least one capacitive means (14) and at least one magnetic means (16), which is inductively coupled to the inductive means. The resonant circuit may be excited to resonate at a given resonant frequency. The permeability of the magnetic means is controllable through a heterogeneous magnetic bias field, wherein also the resonant frequency of the resonant circuit is controllable. The label has a plurality of magnetic elements (20) of a first type (A), which constitute the magnetic means (16) and the permeability of which, within certain limits, decreases with increasing magnetic bias field, and a plurality of magnetic elements (24; 26) of a second type (B), the permeability of which decreases more slowly with increasing magnetic bias field, as compared to the elements (20) of the first type.
SE9603484A 1996-09-23 1996-09-23 Label for marking and remote detection of objects SE9603484L (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE9603484A SE9603484L (en) 1996-09-23 1996-09-23 Label for marking and remote detection of objects
PCT/SE1997/001572 WO1998013946A2 (en) 1996-09-23 1997-09-18 Label for marking and remote detection of objects

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9603484A SE9603484L (en) 1996-09-23 1996-09-23 Label for marking and remote detection of objects

Publications (2)

Publication Number Publication Date
SE9603484D0 SE9603484D0 (en) 1996-09-23
SE9603484L true SE9603484L (en) 1998-03-24

Family

ID=20404006

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9603484A SE9603484L (en) 1996-09-23 1996-09-23 Label for marking and remote detection of objects

Country Status (2)

Country Link
SE (1) SE9603484L (en)
WO (1) WO1998013946A2 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE469673B (en) * 1992-01-20 1993-08-16 Rso Corp SETTING AND DEVICE ON CONTACT-FREE SALE OF OBJECTS
NL9300628A (en) * 1993-04-14 1994-11-01 Nedap Nv Magneto-restrictive resonant labels for a detection or identification system.

Also Published As

Publication number Publication date
SE9603484D0 (en) 1996-09-23
WO1998013946A2 (en) 1998-04-02
WO1998013946A3 (en) 1998-06-18

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