FR2406274A1 - SOUND REPRODUCTION DEVICE INCLUDING A READING HEAD MOBILE BETWEEN A REST POSITION AND A RESTITUTION POSITION - Google Patents

SOUND REPRODUCTION DEVICE INCLUDING A READING HEAD MOBILE BETWEEN A REST POSITION AND A RESTITUTION POSITION

Info

Publication number
FR2406274A1
FR2406274A1 FR7829142A FR7829142A FR2406274A1 FR 2406274 A1 FR2406274 A1 FR 2406274A1 FR 7829142 A FR7829142 A FR 7829142A FR 7829142 A FR7829142 A FR 7829142A FR 2406274 A1 FR2406274 A1 FR 2406274A1
Authority
FR
France
Prior art keywords
sound reproduction
reproduction device
device including
rest position
reading head
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.)
Withdrawn
Application number
FR7829142A
Other languages
French (fr)
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.)
Bang and Olufsen AS
Original Assignee
Bang and Olufsen AS
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 Bang and Olufsen AS filed Critical Bang and Olufsen AS
Publication of FR2406274A1 publication Critical patent/FR2406274A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/02—Arrangements of heads
    • G11B3/08—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers
    • G11B3/085—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers using automatic means
    • G11B3/08535—Driving the head
    • G11B3/08564—Driving the head the head being driven by means independent of the record carrier driving means
    • G11B3/08587—Driving the head the head being driven by means independent of the record carrier driving means for pick-up arm moving parallel to itself
    • G11B3/08593—Driving the head the head being driven by means independent of the record carrier driving means for pick-up arm moving parallel to itself driven by non-skip driving means, e.g. lead screw

Landscapes

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

Abstract

L'invention concerne un dispositif de reproduction sonore comportant une tête de lecture mobile entre une position de repos et une position de restitution. Ledit dispositif comporte un dispositif de commande comprenant deux éléments mobiles l'un par rapport à l'autre, associés respectivement à la tête de lecture et au châssis, l'un des éléments comprenant un aimant permanent et un conducteur magnétique définissant un entrefer dans lequel passe un flux magnétique et l'autre comprenant un conducteur électrique placé dans l'entrefer pour y être déplacé en réponse à la circulation d'un courant dans le conducteur électrique. Application aux platines tourne-disques et aux enregistreurs sur bandes magnétiques.The invention relates to a sound reproduction device comprising a read head movable between a rest position and a playback position. Said device comprises a control device comprising two elements movable relative to each other, associated respectively with the read head and with the frame, one of the elements comprising a permanent magnet and a magnetic conductor defining an air gap in which a magnetic flux passes and the other comprising an electrical conductor placed in the air gap to be moved therein in response to the flow of a current in the electrical conductor. Application to turntables and magnetic tape recorders.

FR7829142A 1977-10-13 1978-10-12 SOUND REPRODUCTION DEVICE INCLUDING A READING HEAD MOBILE BETWEEN A REST POSITION AND A RESTITUTION POSITION Withdrawn FR2406274A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4263477 1977-10-13

Publications (1)

Publication Number Publication Date
FR2406274A1 true FR2406274A1 (en) 1979-05-11

Family

ID=10425299

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7829142A Withdrawn FR2406274A1 (en) 1977-10-13 1978-10-12 SOUND REPRODUCTION DEVICE INCLUDING A READING HEAD MOBILE BETWEEN A REST POSITION AND A RESTITUTION POSITION

Country Status (3)

Country Link
DE (1) DE2844488A1 (en)
FR (1) FR2406274A1 (en)
GB (1) GB2010566A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58161177A (en) * 1982-03-19 1983-09-24 Hitachi Ltd Magnetic disk device
GB2197969B (en) * 1986-10-28 1990-05-16 Seiko Epson Corp Energy storing apparatus, e.g. for use in a timepiece

Also Published As

Publication number Publication date
GB2010566A (en) 1979-06-27
DE2844488A1 (en) 1979-05-10

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Legal Events

Date Code Title Description
ST Notification of lapse