GB2252663B - Data transfer head - Google Patents

Data transfer head

Info

Publication number
GB2252663B
GB2252663B GB9202997A GB9202997A GB2252663B GB 2252663 B GB2252663 B GB 2252663B GB 9202997 A GB9202997 A GB 9202997A GB 9202997 A GB9202997 A GB 9202997A GB 2252663 B GB2252663 B GB 2252663B
Authority
GB
United Kingdom
Prior art keywords
data transfer
transfer head
head
data
transfer
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
GB9202997A
Other versions
GB9202997D0 (en
GB2252663A (en
Inventor
Alan Oliver
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.)
RUE CARD TECHNOLOGY Ltd DE
Original Assignee
RUE CARD TECHNOLOGY Ltd DE
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 GB898919529A external-priority patent/GB8919529D0/en
Application filed by RUE CARD TECHNOLOGY Ltd DE filed Critical RUE CARD TECHNOLOGY Ltd DE
Priority to GB9202997A priority Critical patent/GB2252663B/en
Publication of GB9202997D0 publication Critical patent/GB9202997D0/en
Publication of GB2252663A publication Critical patent/GB2252663A/en
Application granted granted Critical
Publication of GB2252663B publication Critical patent/GB2252663B/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
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features

Landscapes

  • Engineering & Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
GB9202997A 1989-08-29 1992-02-13 Data transfer head Expired - Fee Related GB2252663B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9202997A GB2252663B (en) 1989-08-29 1992-02-13 Data transfer head

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB898919529A GB8919529D0 (en) 1989-08-29 1989-08-29 Improved magnetic recording head
PCT/GB1990/001302 WO1991003800A1 (en) 1989-08-29 1990-08-17 Data transfer head
GB9202997A GB2252663B (en) 1989-08-29 1992-02-13 Data transfer head

Publications (3)

Publication Number Publication Date
GB9202997D0 GB9202997D0 (en) 1992-04-01
GB2252663A GB2252663A (en) 1992-08-12
GB2252663B true GB2252663B (en) 1993-07-07

Family

ID=26295826

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9202997A Expired - Fee Related GB2252663B (en) 1989-08-29 1992-02-13 Data transfer head

Country Status (1)

Country Link
GB (1) GB2252663B (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1153067B (en) * 1959-12-29 1963-08-22 Wolfgang Assmann G M B H Flux-sensitive magnetic head for writing and reading measured values
US3333275A (en) * 1958-10-14 1967-07-25 Fritz A Guerth Magnetic recording head
US3651311A (en) * 1969-11-26 1972-03-21 Digitronics Corp Information signal generation apparatus
US3653012A (en) * 1967-05-31 1972-03-28 Sony Corp Magnetic head with gaps spaced as a function of the distance between recorded lines of information
FR2503907A1 (en) * 1981-04-13 1982-10-15 Widmer Michel Floating reading head for magnetic data cards - uses cylindrical head carried by sprung balls to permit convex surface to fit against passing card
FR2622336A1 (en) * 1987-10-27 1989-04-28 Europ Composants Electron Magnetic reading and recording head
FR2633428A1 (en) * 1988-06-28 1989-12-29 Europ Composants Electron Magnetic recording/reading head with superconducting pad.

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3333275A (en) * 1958-10-14 1967-07-25 Fritz A Guerth Magnetic recording head
DE1153067B (en) * 1959-12-29 1963-08-22 Wolfgang Assmann G M B H Flux-sensitive magnetic head for writing and reading measured values
US3653012A (en) * 1967-05-31 1972-03-28 Sony Corp Magnetic head with gaps spaced as a function of the distance between recorded lines of information
US3651311A (en) * 1969-11-26 1972-03-21 Digitronics Corp Information signal generation apparatus
FR2503907A1 (en) * 1981-04-13 1982-10-15 Widmer Michel Floating reading head for magnetic data cards - uses cylindrical head carried by sprung balls to permit convex surface to fit against passing card
FR2622336A1 (en) * 1987-10-27 1989-04-28 Europ Composants Electron Magnetic reading and recording head
FR2633428A1 (en) * 1988-06-28 1989-12-29 Europ Composants Electron Magnetic recording/reading head with superconducting pad.

Also Published As

Publication number Publication date
GB9202997D0 (en) 1992-04-01
GB2252663A (en) 1992-08-12

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Legal Events

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

Effective date: 19940817