FR2415855B1 - - Google Patents
Info
- Publication number
- FR2415855B1 FR2415855B1 FR7902121A FR7902121A FR2415855B1 FR 2415855 B1 FR2415855 B1 FR 2415855B1 FR 7902121 A FR7902121 A FR 7902121A FR 7902121 A FR7902121 A FR 7902121A FR 2415855 B1 FR2415855 B1 FR 2415855B1
- Authority
- FR
- France
- 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.)
- Expired
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
- G11B20/1423—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code
-
- 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
- G11B20/1411—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 conversion to or from pulse width coding
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
- H04L25/40—Transmitting circuits; Receiving circuits
- H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
- H04L25/4904—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using self-synchronising codes, e.g. split-phase codes
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Dc Digital Transmission (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7801042A NL7801042A (nl) | 1978-01-30 | 1978-01-30 | Inrichting voor het koderen/dekoderen van informatie bij gebruik van een medium. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2415855A1 FR2415855A1 (fr) | 1979-08-24 |
| FR2415855B1 true FR2415855B1 (US06818201-20041116-C00086.png) | 1984-03-23 |
Family
ID=19830247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7902121A Granted FR2415855A1 (fr) | 1978-01-30 | 1979-01-26 | Dispositif pour le codage/decodage d'information utilisant un milieu |
Country Status (6)
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2079566B (en) | 1980-05-16 | 1985-01-09 | Racal Recorders Ltd | Data encoding and/or decoding |
| NL8006165A (nl) * | 1980-11-12 | 1982-06-01 | Philips Nv | Systeem voor het overdragen van digitale informatie, codeerinrichting voor toepassing in dat systeem, decodeerinrichting voor toepassing in dat systeem en registratiedrager voor toepassing in dat systeem. |
| KR100712550B1 (ko) * | 2006-02-03 | 2007-05-02 | 삼성전자주식회사 | 하드디스크 드라이브의 고밀도 기록 방법 |
| EP2104999B1 (en) * | 2007-01-16 | 2019-11-27 | Koninklijke Philips N.V. | Single carrier modulation system with pilots at the beginning of each data block to improve frequency/phase error tracking |
| US8926028B2 (en) * | 2011-08-03 | 2015-01-06 | Norwell Sourcing Solutions, LLC | Display case for automobile tire rims and related methods |
| JP6221375B2 (ja) * | 2013-06-12 | 2017-11-01 | 富士通株式会社 | Ａｓｋ識別判定回路、受信デバイスおよびプロセッサ |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3067422A (en) * | 1958-12-24 | 1962-12-04 | Ibm | Phase distortion correction for high density magnetic recording |
| NL301351A (US06818201-20041116-C00086.png) * | 1962-12-05 | |||
| US4032979A (en) * | 1972-12-26 | 1977-06-28 | Digital Development Corporation | Method and system for encoding and decoding digital data |
| US3815122A (en) * | 1973-01-02 | 1974-06-04 | Gte Information Syst Inc | Data converting apparatus |
| US3879342A (en) * | 1973-12-28 | 1975-04-22 | Honeywell Inf Systems | Pre-recorded digital data compensation system |
| US3959816A (en) * | 1975-02-24 | 1976-05-25 | Spiecens Camil P | Method and apparatus for interpreting binary data |
| US4000512A (en) * | 1975-12-17 | 1976-12-28 | Redactron Corporation | Width modulated magnetic recording |
-
1978
- 1978-01-30 NL NL7801042A patent/NL7801042A/xx not_active Application Discontinuation
-
1979
- 1979-01-23 US US06/005,883 patent/US4237496A/en not_active Expired - Lifetime
- 1979-01-26 GB GB7902845A patent/GB2013943B/en not_active Expired
- 1979-01-26 FR FR7902121A patent/FR2415855A1/fr active Granted
- 1979-01-29 DE DE2903329A patent/DE2903329C2/de not_active Expired
- 1979-01-30 JP JP885079A patent/JPS54111708A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54111708A (en) | 1979-09-01 |
| DE2903329C2 (de) | 1986-11-06 |
| GB2013943B (en) | 1982-03-17 |
| DE2903329A1 (de) | 1979-08-02 |
| US4237496A (en) | 1980-12-02 |
| GB2013943A (en) | 1979-08-15 |
| NL7801042A (nl) | 1979-08-01 |
| FR2415855A1 (fr) | 1979-08-24 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |