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GB2346037B - Shielded magnetic reading devices - Google Patents

Shielded magnetic reading devices

Info

Publication number
GB2346037B
GB2346037B GB9900725A GB9900725A GB2346037B GB 2346037 B GB2346037 B GB 2346037B GB 9900725 A GB9900725 A GB 9900725A GB 9900725 A GB9900725 A GB 9900725A GB 2346037 B GB2346037 B GB 2346037B
Authority
GB
United Kingdom
Prior art keywords
reading devices
magnetic reading
shielded magnetic
shielded
devices
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
GB9900725A
Other versions
GB2346037A (en
Inventor
Richard Alan Doyle
Michael David Crossfield
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
Application filed by Flying Null Ltd filed Critical Flying Null Ltd
Priority to GB9900725A priority Critical patent/GB2346037B/en
Priority to DE69909842T priority patent/DE69909842T2/en
Priority to US09/869,092 priority patent/US6595419B1/en
Priority to PCT/GB1999/004405 priority patent/WO2000039611A1/en
Priority to EP99962441A priority patent/EP1145048B1/en
Publication of GB2346037A publication Critical patent/GB2346037A/en
Application granted granted Critical
Publication of GB2346037B publication Critical patent/GB2346037B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/08—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes
    • G06K7/082—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors
    • G06K7/083—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors inductive
    • G06K7/084—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors inductive sensing magnetic material by relative movement detecting flux changes without altering its magnetised state
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V15/00—Tags attached to, or associated with, an object, in order to enable detection of the object

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Theoretical Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Burglar Alarm Systems (AREA)
GB9900725A 1998-12-23 1999-01-13 Shielded magnetic reading devices Expired - Fee Related GB2346037B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB9900725A GB2346037B (en) 1999-01-13 1999-01-13 Shielded magnetic reading devices
DE69909842T DE69909842T2 (en) 1998-12-23 1999-12-23 READING DEVICES FOR MAGNETIC LABELS
US09/869,092 US6595419B1 (en) 1998-12-23 1999-12-23 Shielded magnetic reading devices
PCT/GB1999/004405 WO2000039611A1 (en) 1998-12-23 1999-12-23 Reading devices for magnetic tags
EP99962441A EP1145048B1 (en) 1998-12-23 1999-12-23 Reading devices for magnetic tags

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9900725A GB2346037B (en) 1999-01-13 1999-01-13 Shielded magnetic reading devices

Publications (2)

Publication Number Publication Date
GB2346037A GB2346037A (en) 2000-07-26
GB2346037B true GB2346037B (en) 2001-06-20

Family

ID=10845918

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9900725A Expired - Fee Related GB2346037B (en) 1998-12-23 1999-01-13 Shielded magnetic reading devices

Country Status (1)

Country Link
GB (1) GB2346037B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997048990A1 (en) * 1996-06-19 1997-12-24 Flying Null Limited Magnetic reading devices

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997048990A1 (en) * 1996-06-19 1997-12-24 Flying Null Limited Magnetic reading devices

Also Published As

Publication number Publication date
GB2346037A (en) 2000-07-26

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20060113