GB1423931A - Magnetic recording and reproducing systems - Google Patents

Magnetic recording and reproducing systems

Info

Publication number
GB1423931A
GB1423931A GB1070174A GB1070174A GB1423931A GB 1423931 A GB1423931 A GB 1423931A GB 1070174 A GB1070174 A GB 1070174A GB 1070174 A GB1070174 A GB 1070174A GB 1423931 A GB1423931 A GB 1423931A
Authority
GB
United Kingdom
Prior art keywords
signal
magnetic
magnitude
transducer
clockpulse
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
Application number
GB1070174A
Other languages
English (en)
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 GB1423931A publication Critical patent/GB1423931A/en
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)
GB1070174A 1973-05-04 1974-03-11 Magnetic recording and reproducing systems Expired GB1423931A (en)

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 (1)

Publication Number Publication Date
GB1423931A true GB1423931A (en) 1976-02-04

Family

ID=5880004

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1070174A Expired GB1423931A (en) 1973-05-04 1974-03-11 Magnetic recording and reproducing systems

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)

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
JPS5016511A (enrdf_load_stackoverflow) 1975-02-21
FR2228266B1 (enrdf_load_stackoverflow) 1976-12-10
FR2228266A1 (enrdf_load_stackoverflow) 1974-11-29
DE2322493A1 (de) 1974-11-21

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Legal Events

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