FR2228266B1 - - Google Patents

Info

Publication number
FR2228266B1
FR2228266B1 FR7407872A FR7407872A FR2228266B1 FR 2228266 B1 FR2228266 B1 FR 2228266B1 FR 7407872 A FR7407872 A FR 7407872A FR 7407872 A FR7407872 A FR 7407872A FR 2228266 B1 FR2228266 B1 FR 2228266B1
Authority
FR
France
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
Application number
FR7407872A
Other languages
French (fr)
Other versions
FR2228266A1 (enExample
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of FR2228266A1 publication Critical patent/FR2228266A1/fr
Application granted granted Critical
Publication of FR2228266B1 publication Critical patent/FR2228266B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/16—Digital recording or reproducing using non self-clocking codes, i.e. the clock signals are either recorded in a separate clocking track or in a combination of several information tracks
    • 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
    • G11B5/58—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 with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/596—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 with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks
    • G11B5/59605—Circuits
    • G11B5/59616—Synchronisation; Clocking

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Moving Of The Head To Find And Align With The Track (AREA)
  • Control Of Position Or Direction (AREA)
FR7407872A 1973-05-04 1974-02-28 Expired FR2228266B1 (enExample)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732322493 DE2322493A1 (de) 1973-05-04 1973-05-04 Einrichtung zur spurmittenfuehrung von ueber einem aufzeichnungstraeger angeordneten magnetkoepfen

Publications (2)

Publication Number Publication Date
FR2228266A1 FR2228266A1 (enExample) 1974-11-29
FR2228266B1 true FR2228266B1 (enExample) 1976-12-10

Family

ID=5880004

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7407872A Expired FR2228266B1 (enExample) 1973-05-04 1974-02-28

Country Status (4)

Country Link
JP (1) JPS5016511A (enExample)
DE (1) DE2322493A1 (enExample)
FR (1) FR2228266B1 (enExample)
GB (1) GB1423931A (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2593633B1 (fr) * 1986-01-27 1988-04-29 Sagem Procede d'ecriture et de lecture d'une piste magnetique, notamment pour l'asservissement positionnel de tetes magnetiques; support magnetique comportant au moins une telle piste; procede d'asservissement positionnel de tetes magnetiques mettant en oeuvre de telles pistes

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3185972A (en) * 1961-10-10 1965-05-25 Ibm Transducer positioning system utilizing record with interspersed data and positioning information
US3593333A (en) * 1969-11-26 1971-07-13 Ibm Position detection for a track following servo system

Also Published As

Publication number Publication date
DE2322493A1 (de) 1974-11-21
GB1423931A (en) 1976-02-04
FR2228266A1 (enExample) 1974-11-29
JPS5016511A (enExample) 1975-02-21

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Legal Events

Date Code Title Description
ST Notification of lapse