FR2393391A1 - REPRODUCTIVE DEVICE WITH AUTOMATIC HEAD ALIGNMENT - Google Patents

REPRODUCTIVE DEVICE WITH AUTOMATIC HEAD ALIGNMENT

Info

Publication number
FR2393391A1
FR2393391A1 FR7816614A FR7816614A FR2393391A1 FR 2393391 A1 FR2393391 A1 FR 2393391A1 FR 7816614 A FR7816614 A FR 7816614A FR 7816614 A FR7816614 A FR 7816614A FR 2393391 A1 FR2393391 A1 FR 2393391A1
Authority
FR
France
Prior art keywords
track
head alignment
automatic head
alignment
signal
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.)
Granted
Application number
FR7816614A
Other languages
French (fr)
Other versions
FR2393391B1 (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.)
Sony Corp
Original Assignee
Sony 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
Priority claimed from JP1977072050U external-priority patent/JPS54307U/ja
Priority claimed from JP15818877A external-priority patent/JPS5492308A/en
Application filed by Sony Corp filed Critical Sony Corp
Publication of FR2393391A1 publication Critical patent/FR2393391A1/en
Application granted granted Critical
Publication of FR2393391B1 publication Critical patent/FR2393391B1/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
    • 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
    • G11B5/584—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 tapes
    • G11B5/588—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 tapes by controlling the position of the rotating heads

Landscapes

  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)

Abstract

L'invention concerne un appareil de reproduction de signaux d'informations avec alignement automatique de la tête de lecture. La tête de lecture qui suit une piste d'enregistrement oscille dans une direction perpendiculaire à la piste. L'enveloppe du signal est détectée de manière à produire un signai d'alignement sur la piste, par référence avec un signal d'oscillation produit par un capteur associé avec le support de la tête L'invention s'applique notamment à la restitution des images de télévision enregistrées sur bande magnétique.An apparatus for reproducing information signals with automatic alignment of the read head. The read head that follows a recording track oscillates in a direction perpendicular to the track. The envelope of the signal is detected so as to produce an alignment signal on the track, by reference to an oscillation signal produced by a sensor associated with the support of the head The invention applies in particular to the reproduction of television images recorded on magnetic tape.

FR7816614A 1977-06-04 1978-06-02 REPRODUCING APPARATUS WITH AUTOMATIC HEAD ALIGNMENT Expired FR2393391B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1977072050U JPS54307U (en) 1977-06-04 1977-06-04
JP15818877A JPS5492308A (en) 1977-12-29 1977-12-29 Head tracking device in recorder-reproducer

Publications (2)

Publication Number Publication Date
FR2393391A1 true FR2393391A1 (en) 1978-12-29
FR2393391B1 FR2393391B1 (en) 1985-10-31

Family

ID=26413179

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7816614A Expired FR2393391B1 (en) 1977-06-04 1978-06-02 REPRODUCING APPARATUS WITH AUTOMATIC HEAD ALIGNMENT

Country Status (12)

Country Link
AT (1) AT376535B (en)
AU (1) AU515299B2 (en)
BR (1) BR7803529A (en)
CH (1) CH634433A5 (en)
DE (1) DE2824277C2 (en)
DK (1) DK147867C (en)
ES (1) ES470451A1 (en)
FR (1) FR2393391B1 (en)
GB (1) GB1580008A (en)
IT (1) IT7824177A0 (en)
NL (1) NL193155C (en)
SE (1) SE438216B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2420816A1 (en) * 1978-03-23 1979-10-19 Ampex MOBILE TRANSDUCER HEAD SLAVE WITH AUTOMATIC COMPENSATION
EP0014311A1 (en) * 1979-02-05 1980-08-20 International Business Machines Corporation Method of correcting head-to-track alignment, rotating head magnetic tape unit and magnetic tape
FR2458125A1 (en) * 1979-05-31 1980-12-26 Sony Corp AUTOMATIC MAGNETIC HEAD ALIGNMENT DEVICE, PARTICULARLY FOR A MAGNETOSCOPE
EP0039915A1 (en) * 1980-05-08 1981-11-18 Sony Corporation Head tracking control system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57203228A (en) * 1981-06-09 1982-12-13 Sony Corp Tracking adjuster
FR2608825B1 (en) * 1986-12-19 1994-12-30 Enertec DEVICE FOR DETECTING THE POSITION OF A MAGNETIC HEAD
DE68923767T2 (en) * 1988-12-06 1996-02-22 Mitsubishi Electric Corp Magnetic recording / playback device.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2089078A5 (en) * 1970-04-06 1972-01-07 Ampex
FR2344913A1 (en) * 1976-03-19 1977-10-14 Ampex DEVIABLE TRANSDUCER VIBRATION DAMPING SYSTEM
FR2364524A1 (en) * 1976-09-13 1978-04-07 Ampex POSITIONABLE MOUNTING STRUCTURE FOR MAGNETIC TRANSDUCER AND ASSOCIATED EXCITATION SYSTEM

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2089078A5 (en) * 1970-04-06 1972-01-07 Ampex
FR2344913A1 (en) * 1976-03-19 1977-10-14 Ampex DEVIABLE TRANSDUCER VIBRATION DAMPING SYSTEM
FR2364524A1 (en) * 1976-09-13 1978-04-07 Ampex POSITIONABLE MOUNTING STRUCTURE FOR MAGNETIC TRANSDUCER AND ASSOCIATED EXCITATION SYSTEM

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/69 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2420816A1 (en) * 1978-03-23 1979-10-19 Ampex MOBILE TRANSDUCER HEAD SLAVE WITH AUTOMATIC COMPENSATION
EP0014311A1 (en) * 1979-02-05 1980-08-20 International Business Machines Corporation Method of correcting head-to-track alignment, rotating head magnetic tape unit and magnetic tape
FR2458125A1 (en) * 1979-05-31 1980-12-26 Sony Corp AUTOMATIC MAGNETIC HEAD ALIGNMENT DEVICE, PARTICULARLY FOR A MAGNETOSCOPE
EP0039915A1 (en) * 1980-05-08 1981-11-18 Sony Corporation Head tracking control system

Also Published As

Publication number Publication date
NL193155B (en) 1998-08-03
DK147867C (en) 1985-09-23
IT7824177A0 (en) 1978-06-02
NL7806112A (en) 1978-12-06
FR2393391B1 (en) 1985-10-31
AU515299B2 (en) 1981-03-26
ES470451A1 (en) 1979-01-16
SE7806528L (en) 1978-12-05
CH634433A5 (en) 1983-01-31
NL193155C (en) 1998-12-04
AT376535B (en) 1984-11-26
SE438216B (en) 1985-04-01
DE2824277A1 (en) 1978-12-21
BR7803529A (en) 1979-02-20
DE2824277C2 (en) 1986-11-06
DK247678A (en) 1978-12-05
GB1580008A (en) 1980-11-26
ATA404178A (en) 1984-04-15
AU3670078A (en) 1979-12-06
DK147867B (en) 1984-12-24

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