BE806088A - Procede et appareil de recuperation de donnees binaires codees - Google Patents
Procede et appareil de recuperation de donnees binaires codeesInfo
- Publication number
- BE806088A BE806088A BE136698A BE136698A BE806088A BE 806088 A BE806088 A BE 806088A BE 136698 A BE136698 A BE 136698A BE 136698 A BE136698 A BE 136698A BE 806088 A BE806088 A BE 806088A
- Authority
- BE
- Belgium
- Prior art keywords
- binary data
- encoded binary
- recovering encoded
- recovering
- data
- Prior art date
Links
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Dc Digital Transmission (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US30291572A | 1972-11-01 | 1972-11-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE806088A true BE806088A (fr) | 1974-02-01 |
Family
ID=23169770
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE136698A BE806088A (fr) | 1972-11-01 | 1973-10-15 | Procede et appareil de recuperation de donnees binaires codees |
Country Status (10)
Country | Link |
---|---|
US (1) | US3794987A (de) |
JP (1) | JPS4978520A (de) |
BE (1) | BE806088A (de) |
BR (1) | BR7308155D0 (de) |
CA (1) | CA994473A (de) |
DE (1) | DE2349685C2 (de) |
FR (1) | FR2204925B1 (de) |
GB (1) | GB1415584A (de) |
IT (1) | IT1014512B (de) |
NL (1) | NL180051C (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1063719A (en) * | 1975-04-28 | 1979-10-02 | Control Data Corporation | Phase locked loop decoder |
US4167760A (en) * | 1978-03-28 | 1979-09-11 | Ampex Corporation | Bi-phase decoder apparatus and method |
US4218770A (en) * | 1978-09-08 | 1980-08-19 | Bell Telephone Laboratories, Incorporated | Delay modulation data transmission system |
US4222080A (en) * | 1978-12-21 | 1980-09-09 | International Business Machines Corporation | Velocity tolerant decoding technique |
GB2057226B (en) * | 1979-07-10 | 1984-02-22 | Mfe Ltd | Decoding mfm data signals |
US4635140A (en) * | 1982-05-08 | 1987-01-06 | Victor Company Of Japan, Limited | Digital recording/playback system with limited frequency range |
US4532559A (en) * | 1983-02-14 | 1985-07-30 | Prime Computer, Inc. | Apparatus for decoding phase encoded data |
US4550391A (en) * | 1983-02-22 | 1985-10-29 | Western Digital Corporation | Data capture window extension circuit |
US4633488A (en) * | 1984-11-13 | 1986-12-30 | Digital Equipment Corporation | Phase-locked loop for MFM data recording |
US5151985A (en) * | 1987-05-28 | 1992-09-29 | Apple Computer, Inc. | Disk drive controller |
GB2205467B (en) * | 1987-05-28 | 1992-02-12 | Apple Computer | Disk drive controller |
US5353175A (en) * | 1991-12-02 | 1994-10-04 | Sony Corporation | Apparatus for using window signal generators to enable detection of header information such as an address mark, sector mark, or address information recorded on each sector of a disc recording medium only where such information could be present |
JP3067349B2 (ja) * | 1991-12-02 | 2000-07-17 | ソニー株式会社 | ディスク状記録媒体のアドレス情報検出装置 |
JP3021880B2 (ja) * | 1991-12-06 | 2000-03-15 | ソニー株式会社 | 磁気ディスク記録媒体のアドレスマーク検出装置 |
US5703525A (en) * | 1996-10-09 | 1997-12-30 | Texas Instruments Incorporated | Low cost system for FSK demodulation |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3226685A (en) * | 1961-06-02 | 1965-12-28 | Potter Instrument Co Inc | Digital recording systems utilizing ternary, n bit binary and other self-clocking forms |
US3500385A (en) * | 1967-07-17 | 1970-03-10 | Ibm | Coded data storage and retrieval system |
US3636536A (en) * | 1968-03-21 | 1972-01-18 | Leach Corp | Derived clock circuit in a phase modulated digital data handling system |
US3609560A (en) * | 1970-01-09 | 1971-09-28 | Bedford Associates Inc | Data separation circuit for magnetic recorder memories |
US3689903A (en) * | 1970-10-16 | 1972-09-05 | Honeywell Inc | Voltage controlled oscillator with constrained period of frequency change |
US3656149A (en) * | 1970-11-23 | 1972-04-11 | Honeywell Inf Systems | Three frequency data separator |
US3684967A (en) * | 1971-01-08 | 1972-08-15 | Cogar Corp | Automatic control of position and width of a tracking window in a data recovery system |
US3737895A (en) * | 1971-08-02 | 1973-06-05 | Edmac Ass Inc | Bi-phase data recorder |
-
1972
- 1972-11-01 US US00302915A patent/US3794987A/en not_active Expired - Lifetime
-
1973
- 1973-08-01 GB GB3658073A patent/GB1415584A/en not_active Expired
- 1973-10-03 DE DE2349685A patent/DE2349685C2/de not_active Expired
- 1973-10-04 FR FR7335553A patent/FR2204925B1/fr not_active Expired
- 1973-10-09 CA CA182,945A patent/CA994473A/en not_active Expired
- 1973-10-10 NL NLAANVRAGE7313908,A patent/NL180051C/xx not_active IP Right Cessation
- 1973-10-12 JP JP48114021A patent/JPS4978520A/ja active Pending
- 1973-10-15 BE BE136698A patent/BE806088A/xx not_active IP Right Cessation
- 1973-10-17 IT IT30216/73A patent/IT1014512B/it active
- 1973-10-18 BR BR8155/73A patent/BR7308155D0/pt unknown
Also Published As
Publication number | Publication date |
---|---|
IT1014512B (it) | 1977-04-30 |
FR2204925A1 (de) | 1974-05-24 |
NL180051C (nl) | 1986-12-16 |
NL7313908A (de) | 1974-05-03 |
DE2349685A1 (de) | 1974-05-09 |
NL180051B (nl) | 1986-07-16 |
JPS4978520A (de) | 1974-07-29 |
US3794987A (en) | 1974-02-26 |
DE2349685C2 (de) | 1982-09-23 |
BR7308155D0 (pt) | 1974-07-11 |
FR2204925B1 (de) | 1978-02-10 |
GB1415584A (en) | 1975-11-26 |
CA994473A (en) | 1976-08-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: BURROUGHS CORP. Effective date: 19901031 |