DE69018534T2 - Mehrspur-Magnetkopf mit grossem Feldkontrast. - Google Patents

Mehrspur-Magnetkopf mit grossem Feldkontrast.

Info

Publication number
DE69018534T2
DE69018534T2 DE69018534T DE69018534T DE69018534T2 DE 69018534 T2 DE69018534 T2 DE 69018534T2 DE 69018534 T DE69018534 T DE 69018534T DE 69018534 T DE69018534 T DE 69018534T DE 69018534 T2 DE69018534 T2 DE 69018534T2
Authority
DE
Germany
Prior art keywords
magnetic head
large field
track magnetic
field contrast
contrast
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
DE69018534T
Other languages
English (en)
Other versions
DE69018534D1 (de
Inventor
Francois Maurice
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Publication of DE69018534D1 publication Critical patent/DE69018534D1/de
Application granted granted Critical
Publication of DE69018534T2 publication Critical patent/DE69018534T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • G11B5/29—Structure or manufacture of unitary devices formed of plural heads for more than one track
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B15/12—Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams
    • 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
    • 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
    • G11B5/23—Gap features
    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/488—Disposition of heads
    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/49—Fixed mounting or arrangements, e.g. one head per track

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
DE69018534T 1989-07-21 1990-06-19 Mehrspur-Magnetkopf mit grossem Feldkontrast. Expired - Lifetime DE69018534T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8909887A FR2650106B1 (fr) 1989-07-21 1989-07-21 Tete magnetique d'enregistrement multipiste a grand contraste de champ

Publications (2)

Publication Number Publication Date
DE69018534D1 DE69018534D1 (de) 1995-05-18
DE69018534T2 true DE69018534T2 (de) 1995-08-17

Family

ID=9384038

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69018534T Expired - Lifetime DE69018534T2 (de) 1989-07-21 1990-06-19 Mehrspur-Magnetkopf mit grossem Feldkontrast.

Country Status (6)

Country Link
US (1) US5086362A (de)
EP (1) EP0409675B1 (de)
JP (1) JP2711014B2 (de)
KR (1) KR100189479B1 (de)
DE (1) DE69018534T2 (de)
FR (1) FR2650106B1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2712419B1 (fr) * 1993-11-09 1995-12-22 Thomson Csf Tête magnétique d'enregistrement/lecture.
FR2723242B1 (fr) * 1994-07-26 1996-08-30 Thomson Csf Tete magnetique a element saturable et dispositif matriciel comportant un ensemble de tetes magnetiques
US5572392A (en) * 1994-11-17 1996-11-05 International Business Machines Corporation Arbitrary pattern write head assembly for writing timing-based servo patterns on magnetic storage media
FR2735269B1 (fr) * 1995-06-06 1997-07-25 Thomson Csf Tete d'enregistrement/lecture matricielle a structure zigzag
DE19852037A1 (de) 1998-11-11 2000-05-18 Thomson Brandt Gmbh Magnetbandgerät mit Treiberschaltung für Matrixkopf
US6249824B1 (en) * 1998-12-12 2001-06-19 Joseph Reid Henrichs Magnetic data storage fixed hard disk drive using stationary microhead array chips in place of flying-heads and rotary voice-coil actuators
US6266712B1 (en) * 1999-03-27 2001-07-24 Joseph Reid Henrichs Optical data storage fixed hard disk drive using stationary magneto-optical microhead array chips in place of flying-heads and rotary voice-coil actuators
US7130152B1 (en) 1999-04-01 2006-10-31 Storage Technology Corporation High track density magnetic recording head
US6650496B2 (en) 2001-05-15 2003-11-18 Phs Mems Fully integrated matrix magnetic recording head with independent control
JP4766415B2 (ja) * 2001-09-26 2011-09-07 虎男 井上 吸泥開口部が移動する揚泥装置。
JP2005149416A (ja) * 2003-11-19 2005-06-09 Fuji Xerox Co Ltd 画像形成装置及びその交換部品

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1077653A (en) * 1964-01-27 1967-08-02 Telefunken Patent Magnetic information storage element
NL6602101A (de) * 1966-02-18 1967-08-21
GB1136152A (en) * 1966-10-11 1968-12-11 Standard Telephones Cables Ltd Magnetic storage devices
GB1183587A (en) * 1966-11-11 1970-03-11 Standard Telephones Cables Ltd Electrographic Apparatus
US3662361A (en) * 1968-02-13 1972-05-09 Ibm Magnetic head with deposited core and signal conductor
US4972336A (en) * 1983-10-14 1990-11-20 Applied Magnetics Corporation Read while write magnetic head assembly
US4967300A (en) * 1983-10-14 1990-10-30 Applied Magnetics Corporation Magnetic head assembly having a transverse guiding surface formed of a mixture of aluminum oxide and titanium carbide
FR2582862B1 (fr) * 1985-05-30 1987-07-17 Thomson Csf Capteur a effet magneto-resistif lineaire, son procede de realisation et son application dans un detecteur de domaines magnetiques
FR2588406B1 (fr) * 1985-10-04 1994-03-25 Thomson Csf Tete d'enregistrement thermomagnetique et procede de realisation

Also Published As

Publication number Publication date
DE69018534D1 (de) 1995-05-18
JPH0354708A (ja) 1991-03-08
JP2711014B2 (ja) 1998-02-10
FR2650106B1 (fr) 1991-09-20
KR910003577A (ko) 1991-02-27
KR100189479B1 (ko) 1999-06-01
EP0409675B1 (de) 1995-04-12
US5086362A (en) 1992-02-04
EP0409675A1 (de) 1991-01-23
FR2650106A1 (fr) 1991-01-25

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition