FR2389193A1 - Magnetic disc disc recording system - uses additional disc with spiral guide groove to guide groove to guide read-write head - Google Patents

Magnetic disc disc recording system - uses additional disc with spiral guide groove to guide groove to guide read-write head

Info

Publication number
FR2389193A1
FR2389193A1 FR7712885A FR7712885A FR2389193A1 FR 2389193 A1 FR2389193 A1 FR 2389193A1 FR 7712885 A FR7712885 A FR 7712885A FR 7712885 A FR7712885 A FR 7712885A FR 2389193 A1 FR2389193 A1 FR 2389193A1
Authority
FR
France
Prior art keywords
disc
guide groove
write head
read
recording system
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Withdrawn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
FR7712885A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7712885A priority Critical patent/FR2389193A1/en
Publication of FR2389193A1 publication Critical patent/FR2389193A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48Disposition 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
    • G11B5/58Disposition 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
    • G11B5/596Disposition 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

Landscapes

  • Moving Of Heads (AREA)

Abstract

The recording system is for mechanical or electrical oscillatory functions and uses two discs(A, B) rotating relative to one another at the same speed. One of the discs(A) has a spiral guide groove, while the other disc(B) has a magnetisable layer on both sides, the read/write head for the second disc(B) coupled mechanically to the needle moving along the spiral guide groove on the first disc(A). Pref. a single guide disc can be used for recording or playback of several magnetic discs.
FR7712885A 1977-04-28 1977-04-28 Magnetic disc disc recording system - uses additional disc with spiral guide groove to guide groove to guide read-write head Withdrawn FR2389193A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7712885A FR2389193A1 (en) 1977-04-28 1977-04-28 Magnetic disc disc recording system - uses additional disc with spiral guide groove to guide groove to guide read-write head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7712885A FR2389193A1 (en) 1977-04-28 1977-04-28 Magnetic disc disc recording system - uses additional disc with spiral guide groove to guide groove to guide read-write head

Publications (1)

Publication Number Publication Date
FR2389193A1 true FR2389193A1 (en) 1978-11-24

Family

ID=9190050

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7712885A Withdrawn FR2389193A1 (en) 1977-04-28 1977-04-28 Magnetic disc disc recording system - uses additional disc with spiral guide groove to guide groove to guide read-write head

Country Status (1)

Country Link
FR (1) FR2389193A1 (en)

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Legal Events

Date Code Title Description
ST Notification of lapse