FR2415855A1 - Dispositif pour le codage/decodage d'information utilisant un milieu - Google Patents

Dispositif pour le codage/decodage d'information utilisant un milieu

Info

Publication number
FR2415855A1
FR2415855A1 FR7902121A FR7902121A FR2415855A1 FR 2415855 A1 FR2415855 A1 FR 2415855A1 FR 7902121 A FR7902121 A FR 7902121A FR 7902121 A FR7902121 A FR 7902121A FR 2415855 A1 FR2415855 A1 FR 2415855A1
Authority
FR
France
Prior art keywords
signal
transition
values
information
medium
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
Application number
FR7902121A
Other languages
English (en)
French (fr)
Other versions
FR2415855B1 (OSRAM
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2415855A1 publication Critical patent/FR2415855A1/fr
Application granted granted Critical
Publication of FR2415855B1 publication Critical patent/FR2415855B1/fr
Granted legal-status Critical Current

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)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Dc Digital Transmission (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
FR7902121A 1978-01-30 1979-01-26 Dispositif pour le codage/decodage d'information utilisant un milieu Granted FR2415855A1 (fr)

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 true FR2415855A1 (fr) 1979-08-24
FR2415855B1 FR2415855B1 (OSRAM) 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)

Country Link
US (1) US4237496A (OSRAM)
JP (1) JPS54111708A (OSRAM)
DE (1) DE2903329C2 (OSRAM)
FR (1) FR2415855A1 (OSRAM)
GB (1) GB2013943B (OSRAM)
NL (1) NL7801042A (OSRAM)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
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
KR101431251B1 (ko) * 2007-01-16 2014-08-21 코닌클리케 필립스 엔.브이. 주파수/위상 에러 추적을 향상시키기 위해 각 데이터 블록의 처음 부분에 파일럿들을 지닌 단일 반송파 변조 시스템
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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3331079A (en) * 1962-12-05 1967-07-11 Sperry Rand Corp Apparatus for inhibiting non-significant pulse signals
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

Family Cites Families (4)

* Cited by examiner, † Cited by third party
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
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3331079A (en) * 1962-12-05 1967-07-11 Sperry Rand Corp Apparatus for inhibiting non-significant pulse signals
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

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
ARCHIV DER ELEKTRISCHEN ]BERTRAGUNG, vol. 23, no. 4, avril 1969, STUTTGART (DE); P.M.W. NAVE: "Spektrum des bitern{r codierten PCM-Signals", pages 216-218 *
IBM TECHNICAL DISCLOSURE BULLETIN, vol. 17, no. 8, janvier 1975, NEW YORK (US); D.J. ERNISSE et al.: "High Density DC-Balanced Write Current", page 2215 *
IEEE TRANSACTIONS ON COMMUNICATIONS TECHNOLOGY, vol.COM-19, no. 6, décembre 1971, NEW YORK (US); H: KOBAYASHI: "A Survey of Coding Schemes for Transmission or Recording of Digital Data", pages 1087-1100 *
IEEE TRANSACTIONS ON COMMUNICATIONS, vol. COM-24, no. 4, avril 1976, NEW YORK (US); Y. TAKASAKI et al.: "Optical Pulse Formats for Fiber Optic Digital Communications", pages 404-413 *
W. ENDRES: "Codierung; Vort{ge der NTG- Fachtagung in Braunschweig de 7-9 octobre 1970, VDE- Verlag, 1971, BERLIN (DE); H. RUPP: "Codierung in der PCM-Technik", pages 72-92. *

Also Published As

Publication number Publication date
US4237496A (en) 1980-12-02
DE2903329A1 (de) 1979-08-02
GB2013943B (en) 1982-03-17
GB2013943A (en) 1979-08-15
FR2415855B1 (OSRAM) 1984-03-23
NL7801042A (nl) 1979-08-01
JPS54111708A (en) 1979-09-01
DE2903329C2 (de) 1986-11-06

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Legal Events

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