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 headInfo
- 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- Withdrawn
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
- G11B5/596—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
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.
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) |
-
1977
- 1977-04-28 FR FR7712885A patent/FR2389193A1/en not_active Withdrawn
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |