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 (enExample) | 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 (enExample) |
-
1976
- 1976-03-10 FR FR7606830A patent/FR2344091A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2344091B1 (enExample) | 1981-11-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DK1152423T3 (da) | Pladereproduktionsapparatur | |
| EP0174807A3 (en) | Data storage and decoding apparatus | |
| ES8405184A1 (es) | Un metodo de registrar una senal de informacion binaria sobre un portador de registro. | |
| FR2344091A1 (fr) | Procede de lecture d'informations logiques enregistrees sur un disque souple, et dispositif pour la mise en oeuvre du procede | |
| JPS6417554A (en) | Facsimile equipment | |
| JPS57181429A (en) | Optical disc device | |
| JPS55108915A (en) | Disc pack device | |
| JPS5737711A (en) | Moving head type disk device | |
| JPS55138950A (en) | Digital signal modulation and demodulation system | |
| JPS5492717A (en) | Magnetic storage-reproducer | |
| SU444241A1 (ru) | Запоминающее устройство | |
| JPS556957A (en) | Multiplex parallel-serial conversion system using memory | |
| SU699552A1 (ru) | Устройство воспроизведени цифровой информации с магнитного носител | |
| JPS57200916A (en) | Recording and reproducing device for digital signal | |
| SU805408A1 (ru) | Устройство дл записи и воспроиз-ВЕдЕНи цифРОВОй иНфОРМАции | |
| SU1300514A1 (ru) | Устройство дл считывани информации с перфоленты | |
| JPS6442070A (en) | Digital recording and reproducing device | |
| JPS56165934A (en) | Information processor | |
| SU586496A1 (ru) | Магнитный запоминающий элемент | |
| JPS52120808A (en) | Writing and reading system for digital signals | |
| FR2420250A1 (fr) | Circuit et procede de codage de donnees a modulation de phase modifiee, avec precompensation a l'ecriture | |
| GB908547A (en) | Improvements in and relating to magnetic recording and reproduction | |
| SU591915A1 (ru) | Устройство дл магнитной записи с высокой плотностью | |
| JPS5740707A (en) | Magnetic tape device | |
| SU576587A1 (ru) | Устройство дл цифровой магнитной записи |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |