FR2228266A1 - - Google Patents

Info

Publication number
FR2228266A1
FR2228266A1 FR7407872A FR7407872A FR2228266A1 FR 2228266 A1 FR2228266 A1 FR 2228266A1 FR 7407872 A FR7407872 A FR 7407872A FR 7407872 A FR7407872 A FR 7407872A FR 2228266 A1 FR2228266 A1 FR 2228266A1
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.)
Granted
Application number
FR7407872A
Other languages
French (fr)
Other versions
FR2228266B1 (enrdf_load_stackoverflow
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 (enrdf_load_stackoverflow)

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 true FR2228266A1 (enrdf_load_stackoverflow) 1974-11-29
FR2228266B1 FR2228266B1 (enrdf_load_stackoverflow) 1976-12-10

Family

ID=5880004

Family Applications (1)

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

Country Status (4)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2593633A1 (fr) * 1986-01-27 1987-07-31 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

Citations (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
FR2071751A5 (enrdf_load_stackoverflow) * 1969-11-26 1971-09-17 Ibm

Patent Citations (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
FR2071751A5 (enrdf_load_stackoverflow) * 1969-11-26 1971-09-17 Ibm

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
FOLLOWING PATTERN AND DETECTION" PAGES 3386-3387 GIBEAU E.A. ) *
REVUE US "IBM TECHNICAL DISCLOSURE BULLETIN", VOLUME 13, NO.11, AVRIL 1971. ARTICLE "TRACK *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2593633A1 (fr) * 1986-01-27 1987-07-31 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
EP0233815A1 (fr) * 1986-01-27 1987-08-26 Societe D'applications Generales D'electricite Et De Mecanique Sagem Procédé d'écriture et de lecture d'une piste magnétique, notamment pour l'asservissement positionnel de têtes magnétiques; support magnétique comportant au moins une telle piste; procédé d'asservissement positionnel de têtes magnétiques mettant en oeuvre de telles pistes

Also Published As

Publication number Publication date
JPS5016511A (enrdf_load_stackoverflow) 1975-02-21
GB1423931A (en) 1976-02-04
FR2228266B1 (enrdf_load_stackoverflow) 1976-12-10
DE2322493A1 (de) 1974-11-21

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Legal Events

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