DE69724426D1 - Magnetische lesevorrichtungen - Google Patents

Magnetische lesevorrichtungen

Info

Publication number
DE69724426D1
DE69724426D1 DE69724426T DE69724426T DE69724426D1 DE 69724426 D1 DE69724426 D1 DE 69724426D1 DE 69724426 T DE69724426 T DE 69724426T DE 69724426 T DE69724426 T DE 69724426T DE 69724426 D1 DE69724426 D1 DE 69724426D1
Authority
DE
Germany
Prior art keywords
magnetic
magnet
magnets
tag
magnetization
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
DE69724426T
Other languages
English (en)
Other versions
DE69724426T2 (de
Inventor
Nicholas Dames
David Crossfield
Wilson Mckinnon
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.)
Flying Null Ltd
Original Assignee
Flying Null Ltd
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 GBGB9612831.9A external-priority patent/GB9612831D0/en
Priority claimed from GBGB9620591.9A external-priority patent/GB9620591D0/en
Application filed by Flying Null Ltd filed Critical Flying Null Ltd
Application granted granted Critical
Publication of DE69724426D1 publication Critical patent/DE69724426D1/de
Publication of DE69724426T2 publication Critical patent/DE69724426T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Electromagnetism (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Burglar Alarm Systems (AREA)
  • Measuring Magnetic Variables (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Magnetic Record Carriers (AREA)
  • Holo Graphy (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
DE69724426T 1996-06-19 1997-06-19 Magnetische lesevorrichtungen Expired - Fee Related DE69724426T2 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GBGB9612831.9A GB9612831D0 (en) 1996-06-19 1996-06-19 Spatial magnetic-interrogation
GB9612831 1996-06-19
GB9620591 1996-10-03
GBGB9620591.9A GB9620591D0 (en) 1996-10-03 1996-10-03 Magnetic interrogation techniques
PCT/GB1997/001662 WO1997048990A1 (en) 1996-06-19 1997-06-19 Magnetic reading devices

Publications (2)

Publication Number Publication Date
DE69724426D1 true DE69724426D1 (de) 2003-10-02
DE69724426T2 DE69724426T2 (de) 2004-03-18

Family

ID=26309540

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69724426T Expired - Fee Related DE69724426T2 (de) 1996-06-19 1997-06-19 Magnetische lesevorrichtungen

Country Status (11)

Country Link
US (1) US6230972B1 (de)
EP (1) EP0906583B1 (de)
JP (1) JP2000512784A (de)
CN (1) CN1137392C (de)
AT (1) ATE248377T1 (de)
AU (1) AU717499B2 (de)
BR (1) BR9709864A (de)
CA (1) CA2258772C (de)
DE (1) DE69724426T2 (de)
RU (1) RU2180129C2 (de)
WO (1) WO1997048990A1 (de)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6075441A (en) 1996-09-05 2000-06-13 Key-Trak, Inc. Inventoriable-object control and tracking system
GB9806923D0 (en) * 1998-03-31 1998-05-27 Flying Null Ltd Position sensing
US6204764B1 (en) 1998-09-11 2001-03-20 Key-Trak, Inc. Object tracking system with non-contact object detection and identification
US6427913B1 (en) 1998-09-11 2002-08-06 Key-Trak, Inc. Object control and tracking system with zonal transition detection
US6262664B1 (en) 1998-09-11 2001-07-17 Key-Trak, Inc. Tamper detection prevention for an object control and tracking system
US6195005B1 (en) 1998-09-11 2001-02-27 Key-Trak, Inc. Object carriers for an object control and tracking system
US6232876B1 (en) 1998-09-11 2001-05-15 Key-Trak, Inc. Mobile object tracking system
GB2346037B (en) * 1999-01-13 2001-06-20 Flying Null Ltd Shielded magnetic reading devices
WO2000039611A1 (en) * 1998-12-23 2000-07-06 Flying Null Limited Reading devices for magnetic tags
IL132499A0 (en) * 1999-10-21 2001-03-19 Advanced Coding Systems Ltd A security system for protecting various items and a method for reading a code pattern
US6452380B1 (en) * 2000-03-23 2002-09-17 Lexmark International, Inc. Rod and apparatus for calibrating magnetic roll testing apparatus
US7352771B2 (en) * 2002-10-08 2008-04-01 Colder Products Company Data collision detection device and method
GB0519971D0 (en) * 2005-09-30 2005-11-09 Rue De Int Ltd Method and apparatus for detecting a magnetic feature on an article
US20070260345A1 (en) * 2006-04-14 2007-11-08 Mifsud Vincent D Component manufacturing system for a prefabricated building panel
WO2010008846A2 (en) 2008-06-23 2010-01-21 John Richard Dein Intra-operative system for identifying and tracking surgical sharp objects, instruments, and sponges
DE102009003815A1 (de) * 2009-04-22 2010-10-28 Wincor Nixdorf International Gmbh Selbstbedienungsgerät
US9203546B1 (en) * 2014-06-04 2015-12-01 Square, Inc. Magnetic stripe reader tamper protection
US11204398B2 (en) 2016-07-12 2021-12-21 Magnetic Insight, Inc. Magnetic particle imaging
US10596394B2 (en) 2016-07-28 2020-03-24 Sun Nuclear Corporation Beam angle direction determination
US10251260B1 (en) 2016-08-29 2019-04-02 Square, Inc. Circuit board to hold connector pieces for tamper detection circuit
US10192076B1 (en) 2016-08-29 2019-01-29 Square, Inc. Security housing with recesses for tamper localization
US10595400B1 (en) 2016-09-30 2020-03-17 Square, Inc. Tamper detection system
US10504096B1 (en) 2017-04-28 2019-12-10 Square, Inc. Tamper detection using ITO touch screen traces
EP3669201B1 (de) 2017-08-16 2023-10-25 The Regents of the University of California Systeme und verfahren zur gepulsten magnetpartikelabbildung
WO2019105874A1 (en) * 2017-11-30 2019-06-06 Sub Service Srl Non-magnetic hollow pole with magnetic probe for under water detection of unexploded ordnance
US11890488B2 (en) 2019-03-13 2024-02-06 Magnetic Insight, Inc. Magnetic particle actuation

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3919704A (en) 1972-12-04 1975-11-11 Check Mate Systems Inc System and method for detecting unauthorized removal of goods from protected premises, and magnet detecting apparatus suitable for use therein
US3964042A (en) * 1973-06-25 1976-06-15 Sperry Rand Corporation Static magnetic field metal detector
FI62910C (fi) 1979-12-05 1983-03-10 Outokumpu Oy Anordning foer detektering av magnetiskt ledande metaller i enoerlig materialstroem
JPS6029683A (ja) * 1983-07-27 1985-02-15 Sigma Gijutsu Kogyo Kk 磁気センサ
EP0295085B1 (de) * 1987-06-08 1996-11-06 Esselte Meto International GmbH Magnetische Vorrichtungen verwendende Artikelermittlung und/oder -identifizierung
JPH0352425A (ja) 1989-07-20 1991-03-06 Fujitsu General Ltd リモコン光信号受信方法
US5397985A (en) * 1993-02-09 1995-03-14 Mobil Oil Corporation Method for the imaging of casing morphology by twice integrating magnetic flux density signals
US5594229A (en) * 1993-07-12 1997-01-14 Nhk Spring Co., Ltd. Method and apparatus for checking the authenticity of a checking object by detecting magnetic flux reversals
JPH08135866A (ja) 1994-11-15 1996-05-31 Osaka Gas Co Ltd 柔軟管接続継手
DE69426080T2 (de) 1994-11-17 2001-06-07 Minnesota Mining And Mfg. Co., Saint Paul Fernidentifizierungssystem
JP3631540B2 (ja) * 1995-11-28 2005-03-23 スター精密株式会社 磁気表示消去装置

Also Published As

Publication number Publication date
EP0906583A1 (de) 1999-04-07
DE69724426T2 (de) 2004-03-18
CA2258772A1 (en) 1997-12-24
ATE248377T1 (de) 2003-09-15
CN1137392C (zh) 2004-02-04
BR9709864A (pt) 2000-01-11
AU3182797A (en) 1998-01-07
EP0906583B1 (de) 2003-08-27
JP2000512784A (ja) 2000-09-26
RU2180129C2 (ru) 2002-02-27
WO1997048990A1 (en) 1997-12-24
CA2258772C (en) 2004-05-04
AU717499B2 (en) 2000-03-30
US6230972B1 (en) 2001-05-15
CN1225176A (zh) 1999-08-04

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee