FR2344091A1 - Procede de lecture d'informations logiques enregistrees sur un disque souple, et dispositif pour la mise en oeuvre du procede - Google Patents
Procede de lecture d'informations logiques enregistrees sur un disque souple, et dispositif pour la mise en oeuvre du procedeInfo
- Publication number
- FR2344091A1 FR2344091A1 FR7606830A FR7606830A FR2344091A1 FR 2344091 A1 FR2344091 A1 FR 2344091A1 FR 7606830 A FR7606830 A FR 7606830A FR 7606830 A FR7606830 A FR 7606830A FR 2344091 A1 FR2344091 A1 FR 2344091A1
- Authority
- FR
- France
- Prior art keywords
- series
- flexible data
- operates
- register
- input
- 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
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
- G11B20/14—Digital recording or reproducing using self-clocking codes
- G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
- G11B20/1407—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol
- G11B20/1419—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol to or from biphase level coding, i.e. to or from codes where a one is coded as a transition from a high to a low level during the middle of a bit cell and a zero is encoded as a transition from a low to a high level during the middle of a bit cell or vice versa, e.g. split phase code, Manchester code conversion to or from biphase space or mark coding, i.e. to or from codes where there is a transition at the beginning of every bit cell and a one has no second transition and a zero has a second transition one half of a bit period later or vice versa, e.g. double frequency code, FM code
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7606830A FR2344091A1 (fr) | 1976-03-10 | 1976-03-10 | Procede de lecture d'informations logiques enregistrees sur un disque souple, et dispositif pour la mise en oeuvre du procede |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7606830A FR2344091A1 (fr) | 1976-03-10 | 1976-03-10 | Procede de lecture d'informations logiques enregistrees sur un disque souple, et dispositif pour la mise en oeuvre du procede |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2344091A1 true FR2344091A1 (fr) | 1977-10-07 |
| FR2344091B1 FR2344091B1 (enrdf_load_stackoverflow) | 1981-11-27 |
Family
ID=9170218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7606830A Granted FR2344091A1 (fr) | 1976-03-10 | 1976-03-10 | Procede de lecture d'informations logiques enregistrees sur un disque souple, et dispositif pour la mise en oeuvre du procede |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2344091A1 (enrdf_load_stackoverflow) |
-
1976
- 1976-03-10 FR FR7606830A patent/FR2344091A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2344091B1 (enrdf_load_stackoverflow) | 1981-11-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |