ES2178490T3 - Dispositivo de marcacion. - Google Patents

Dispositivo de marcacion.

Info

Publication number
ES2178490T3
ES2178490T3 ES99957991T ES99957991T ES2178490T3 ES 2178490 T3 ES2178490 T3 ES 2178490T3 ES 99957991 T ES99957991 T ES 99957991T ES 99957991 T ES99957991 T ES 99957991T ES 2178490 T3 ES2178490 T3 ES 2178490T3
Authority
ES
Spain
Prior art keywords
coding
magnetic
marking device
layer
areas
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 - Lifetime
Application number
ES99957991T
Other languages
English (en)
Inventor
Wolfgang Eberhardt
Jan Morenzin
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.)
Forschungszentrum Juelich GmbH
Original Assignee
Forschungszentrum Juelich GmbH
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 Forschungszentrum Juelich GmbH filed Critical Forschungszentrum Juelich GmbH
Application granted granted Critical
Publication of ES2178490T3 publication Critical patent/ES2178490T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G08B13/2405—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
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K1/00—Methods or arrangements for marking the record carrier in digital fashion
    • G06K1/12—Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching
    • G06K1/125—Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching by magnetic means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/06187—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with magnetically detectable marking
    • G06K19/06196—Constructional 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • Theoretical Computer Science (AREA)
  • Credit Cards Or The Like (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Magnetic Record Carriers (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Surgical Instruments (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Paper (AREA)
  • Catching Or Destruction (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Thin Magnetic Films (AREA)

Abstract

Dispositivo de marcación (1) para su aplicación a objetos, con una codificación magnética que presenta zonas de magnetización diferente, caracterizado porque la codificación presenta al menos una capa base magnética (3) y al menos una capa de codificación magnética (5), así como una capa intermedia no magnética (4) dispuesta entre la capa base (3) y la capa de codificación (5), en donde la capa intermedia (4), en zonas parciales de la codificación, distancia la capa base (3) y la capa de codificación (5) una de otra por medio de su espesor de tal manera que se obtenga allí un acoplo no paralelo o antiparalelo.
ES99957991T 1998-11-13 1999-11-03 Dispositivo de marcacion. Expired - Lifetime ES2178490T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19852368A DE19852368A1 (de) 1998-11-13 1998-11-13 Markierungseinrichtung

Publications (1)

Publication Number Publication Date
ES2178490T3 true ES2178490T3 (es) 2002-12-16

Family

ID=7887683

Family Applications (1)

Application Number Title Priority Date Filing Date
ES99957991T Expired - Lifetime ES2178490T3 (es) 1998-11-13 1999-11-03 Dispositivo de marcacion.

Country Status (9)

Country Link
US (1) US6609663B1 (es)
EP (1) EP1138016B1 (es)
JP (1) JP2002530849A (es)
AT (1) ATE221684T1 (es)
DE (2) DE19852368A1 (es)
DK (1) DK1138016T3 (es)
ES (1) ES2178490T3 (es)
PT (1) PT1138016E (es)
WO (1) WO2000030029A1 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10008097A1 (de) 2000-02-22 2001-09-20 Forschungszentrum Juelich Gmbh Markierungseinrichtung sowie Verfahren zum Auslesen einer solchen Markierungseinrichtung
CN106778989B (zh) * 2016-11-22 2020-04-21 中钞特种防伪科技有限公司 防伪元件及防伪产品

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4103315A (en) * 1977-06-24 1978-07-25 International Business Machines Corporation Antiferromagnetic-ferromagnetic exchange bias films
ATE216528T1 (de) 1986-07-08 2002-05-15 Canon Kk Gerät und system zur aufzeichnung auf einem magnetooptischen aufzeichnungsmedium
EP0330394B1 (en) 1988-02-22 1996-07-17 Canon Kabushiki Kaisha Two-layered type opto-magnetic recording medium having low-coercive force layer containing Gd and at least one of Tb and Dy
DE3820475C1 (es) 1988-06-16 1989-12-21 Kernforschungsanlage Juelich Gmbh, 5170 Juelich, De
JP2556563B2 (ja) 1988-10-11 1996-11-20 キヤノン株式会社 光磁気記録媒体
US5163031A (en) 1988-12-07 1992-11-10 Canon Kabushiki Kaisha Method of recording tetra-value signal on magneto-optical recording medium with plural magnetic layers
JP2910250B2 (ja) 1990-12-27 1999-06-23 ソニー株式会社 光磁気記録媒体
US5159513A (en) 1991-02-08 1992-10-27 International Business Machines Corporation Magnetoresistive sensor based on the spin valve effect
JPH06243522A (ja) * 1993-02-16 1994-09-02 Nikon Corp 光磁気ディスク及びその再生方法
US5480685A (en) * 1993-10-22 1996-01-02 Tomoegawa Paper Co., Ltd. Method of making a magnetic recording medium comprising two magnetic layers
US5538803A (en) * 1994-11-23 1996-07-23 International Business Machines Corporation Multibit tag using Barkhausen effect
JP2933841B2 (ja) * 1994-12-22 1999-08-16 沖電気工業株式会社 情報記録媒体、情報記録・再生方法および情報記録・再生装置

Also Published As

Publication number Publication date
EP1138016A1 (de) 2001-10-04
US6609663B1 (en) 2003-08-26
WO2000030029A1 (de) 2000-05-25
DE19852368A1 (de) 2000-05-25
ATE221684T1 (de) 2002-08-15
EP1138016B1 (de) 2002-07-31
DK1138016T3 (da) 2002-11-11
DE59902235D1 (de) 2002-09-05
PT1138016E (pt) 2002-11-29
JP2002530849A (ja) 2002-09-17

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