BR9807387A - Elemento magnetoestritivo que tem uma caracterìstica de frequência ressonante dependente do campo de polarização otimizada - Google Patents

Elemento magnetoestritivo que tem uma caracterìstica de frequência ressonante dependente do campo de polarização otimizada

Info

Publication number
BR9807387A
BR9807387A BR9807387-7A BR9807387A BR9807387A BR 9807387 A BR9807387 A BR 9807387A BR 9807387 A BR9807387 A BR 9807387A BR 9807387 A BR9807387 A BR 9807387A
Authority
BR
Brazil
Prior art keywords
magnetostrictive element
resonant frequency
frequency characteristic
polarization field
field
Prior art date
Application number
BR9807387-7A
Other languages
English (en)
Other versions
BR9807387B1 (pt
Inventor
Ming-Ren Lian
Nen-Chin Liu
Kevin R Coffey
Richard Copeland
Wing Ho
Robert C O'handley
Original Assignee
Sensormatic Electronics 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25179310&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR9807387(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Sensormatic Electronics Corp filed Critical Sensormatic Electronics Corp
Publication of BR9807387A publication Critical patent/BR9807387A/pt
Publication of BR9807387B1 publication Critical patent/BR9807387B1/pt

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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S148/00—Metal treatment
    • Y10S148/003—Anneal

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Burglar Alarm Systems (AREA)
  • Soft Magnetic Materials (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

Patente de Invenção: <B>"ELEMENTO MAGNETOESTRITIVO QUE TEM UMA CARACTERìSTICA DE FREQuêNCIA RESSONANTE DEPENDENTE DO CAMPO DE POLARIZAçãO OTIMIZADA"<D>. Um elemento magnetoestritivo para utilização em um marcador magnetomecânico tem uma característica de freq³ência ressonante que está em um mínimo a um nível de campo de poralização que corresponde ao ponto de operação do marcador magnetomecânico. O elemento magnetoestritivo tem um fator de acoplamento magnetomecânico k na faixa de 0,28 a 0,4 no ponto de operação (26). O elemento magnetoestritivo é formado pela aplicação de recozimento por corrente a uma fita metálica amorfa baseada em ferro - níquel - cobalto, ou por recozimento em campo transversal de uma liga de ferro - níquel - cobalto que inclui um pouco de percentual de cromo e/ou nióbio.
BRPI9807387-7A 1997-02-14 1998-02-04 marcador magnetomecánico de vigiláncia eletrÈnica de artigo, método de formação de um elemento magnetoestritivo e marcador eas magnetomecánico. BR9807387B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/800,771 US5949334A (en) 1995-10-02 1997-02-14 Magnetostrictive element having optimized bias-field-dependent resonant frequency characteristic
US08/800,771 1997-02-14
PCT/US1998/000072 WO1998036392A1 (en) 1997-02-14 1998-02-04 Magnetostrictive element having optimized bias-field-dependent resonant frequency characteristic

Publications (2)

Publication Number Publication Date
BR9807387A true BR9807387A (pt) 2000-03-14
BR9807387B1 BR9807387B1 (pt) 2011-08-23

Family

ID=25179310

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9807387-7A BR9807387B1 (pt) 1997-02-14 1998-02-04 marcador magnetomecánico de vigiláncia eletrÈnica de artigo, método de formação de um elemento magnetoestritivo e marcador eas magnetomecánico.

Country Status (9)

Country Link
US (1) US5949334A (pt)
EP (1) EP0960408B1 (pt)
JP (1) JP4091664B2 (pt)
AR (1) AR011130A1 (pt)
AU (1) AU736092B2 (pt)
BR (1) BR9807387B1 (pt)
CA (1) CA2280148C (pt)
DE (1) DE69830477T2 (pt)
WO (1) WO1998036392A1 (pt)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6057766A (en) * 1997-02-14 2000-05-02 Sensormatic Electronics Corporation Iron-rich magnetostrictive element having optimized bias-field-dependent resonant frequency characteristic
US7779533B2 (en) * 2006-02-15 2010-08-24 Phenix Label Company, Inc. Electronic article surveillance marker
US20090195386A1 (en) * 2006-02-15 2009-08-06 Johannes Maxmillian Peter Electronic article surveillance marker
US20070194927A1 (en) * 2006-02-15 2007-08-23 Johannes Maximilian Peter Electronic article surveillance marker
US20080030339A1 (en) * 2006-08-07 2008-02-07 Tci, Ltd. Electronic article surveillance marker
WO2008032274A2 (en) * 2006-09-13 2008-03-20 Megasec Ltd. Magneto-mechanical markers for use in article surveilance system
US9275529B1 (en) 2014-06-09 2016-03-01 Tyco Fire And Security Gmbh Enhanced signal amplitude in acoustic-magnetomechanical EAS marker
US9418524B2 (en) 2014-06-09 2016-08-16 Tyco Fire & Security Gmbh Enhanced signal amplitude in acoustic-magnetomechanical EAS marker

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4236946A (en) * 1978-03-13 1980-12-02 International Business Machines Corporation Amorphous magnetic thin films with highly stable easy axis
US4510490A (en) * 1982-04-29 1985-04-09 Allied Corporation Coded surveillance system having magnetomechanical marker
US4510489A (en) * 1982-04-29 1985-04-09 Allied Corporation Surveillance system having magnetomechanical marker
US4637843A (en) * 1982-05-06 1987-01-20 Tdk Corporation Core of a noise filter comprised of an amorphous alloy
JPS599157A (ja) * 1982-07-08 1984-01-18 Sony Corp 非晶質磁性合金の熱処理方法
US4622543A (en) * 1984-03-22 1986-11-11 Anderson Iii Philip M Surveillance system having acoustic magnetomechanical marker
US4797658A (en) * 1984-11-26 1989-01-10 Sensormatic Electronics Corporation Article surveillance marker capable of being deactivated by relieving the retained stress therein and method and system for deactivating the marker
US4686516A (en) * 1984-11-26 1987-08-11 Sensormatic Electronics Corporation Method, system and apparatus for use in article surveillance
US5225951A (en) * 1985-12-27 1993-07-06 Sharp Kabushiki Kaisha Thin film magnetic head with reduced internal stresses
EP0435885B1 (en) * 1988-09-26 1993-08-04 AlliedSignal Inc. Metallic glass alloys for mechanically resonant target surveillance systems
US5154983A (en) * 1989-10-18 1992-10-13 Victor Company Of Japan, Ltd. Magnetic alloy
US5252144A (en) * 1991-11-04 1993-10-12 Allied Signal Inc. Heat treatment process and soft magnetic alloys produced thereby
US5456718A (en) * 1992-11-17 1995-10-10 Szymaitis; Dennis W. Apparatus for detecting surgical objects within the human body
US5310975A (en) * 1992-12-23 1994-05-10 General Electric Company Method and apparatus for the continuous field annealing of amorphous metal transformer cores
US5514229A (en) * 1993-11-24 1996-05-07 Ramot-University Authority For Applied Research And Industrial Development Ltd., Tel Aviv University Method of producing transparent and other electrically conductive materials
US5565849A (en) * 1995-02-22 1996-10-15 Sensormatic Electronics Corporation Self-biased magnetostrictive element for magnetomechanical electronic article surveillance systems
US5469140A (en) * 1994-06-30 1995-11-21 Sensormatic Electronics Corporation Transverse magnetic field annealed amorphous magnetomechanical elements for use in electronic article surveillance system and method of making same
US5568125A (en) * 1994-06-30 1996-10-22 Sensormatic Electronics Corporation Two-stage annealing process for amorphous ribbon used in an EAS marker
US5676767A (en) * 1994-06-30 1997-10-14 Sensormatic Electronics Corporation Continuous process and reel-to-reel transport apparatus for transverse magnetic field annealing of amorphous material used in an EAS marker
US5494534A (en) * 1995-03-17 1996-02-27 Industrial Technology Research Institute Method of heat treating an amorphous soft magnetic article
US5495231A (en) * 1995-04-13 1996-02-27 Alliedsignal Inc. Metallic glass alloys for mechanically resonant marker surveillance systems
US5628840A (en) * 1995-04-13 1997-05-13 Alliedsignal Inc. Metallic glass alloys for mechanically resonant marker surveillance systems
US5539380A (en) * 1995-04-13 1996-07-23 Alliedsignal Inc. Metallic glass alloys for mechanically resonant marker surveillance systems
US5684459A (en) * 1995-10-02 1997-11-04 Sensormatic Electronics Corporation Curvature-reduction annealing of amorphous metal alloy ribbon

Also Published As

Publication number Publication date
WO1998036392A1 (en) 1998-08-20
EP0960408A1 (en) 1999-12-01
US5949334A (en) 1999-09-07
JP2001511928A (ja) 2001-08-14
CA2280148C (en) 2007-05-08
JP4091664B2 (ja) 2008-05-28
AU736092B2 (en) 2001-07-26
CA2280148A1 (en) 1998-08-20
AR011130A1 (es) 2000-08-02
DE69830477T2 (de) 2006-03-16
EP0960408B1 (en) 2005-06-08
BR9807387B1 (pt) 2011-08-23
EP0960408A4 (en) 2002-05-22
DE69830477D1 (de) 2005-07-14
AU6238398A (en) 1998-09-08

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Legal Events

Date Code Title Description
TE Change of address
B06A Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette]
B06A Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 23/08/2011, OBSERVADAS AS CONDICOES LEGAIS.

B25A Requested transfer of rights approved

Owner name: SENSORMATIC ELECTRONICS, LLC (US)

Free format text: TRANSFERIDO POR INCORPORACAO DE: SENSORMATIC ELECTRONICS CORPORATION

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 23A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2616 DE 23-02-2021 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.