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FR2300387A1 - Procede et dispositif d'enregistrement et de lecture de signaux de donnees - Google Patents

Procede et dispositif d'enregistrement et de lecture de signaux de donnees

Info

Publication number
FR2300387A1
FR2300387A1 FR7540378A FR7540378A FR2300387A1 FR 2300387 A1 FR2300387 A1 FR 2300387A1 FR 7540378 A FR7540378 A FR 7540378A FR 7540378 A FR7540378 A FR 7540378A FR 2300387 A1 FR2300387 A1 FR 2300387A1
Authority
FR
France
Prior art keywords
recording
reading
data signals
signals
data
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
FR7540378A
Other languages
English (en)
Other versions
FR2300387B1 (fr
Inventor
Roy F Dent Iii
Richard C Schneider
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of FR2300387A1 publication Critical patent/FR2300387A1/fr
Application granted granted Critical
Publication of FR2300387B1 publication Critical patent/FR2300387B1/fr
Granted legal-status Critical Current

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
    • H04L25/497—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 by correlative coding, e.g. partial response coding or echo modulation coding transmitters and receivers for partial response systems
    • 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
    • G11B20/1426—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code conversion to or from block codes or representations thereof

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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
FR7540378A 1975-02-06 1975-12-23 Procede et dispositif d'enregistrement et de lecture de signaux de donnees Granted FR2300387A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/547,909 US3952329A (en) 1975-02-06 1975-02-06 Pulse compression recording

Publications (2)

Publication Number Publication Date
FR2300387A1 true FR2300387A1 (fr) 1976-09-03
FR2300387B1 FR2300387B1 (fr) 1978-05-19

Family

ID=24186647

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7540378A Granted FR2300387A1 (fr) 1975-02-06 1975-12-23 Procede et dispositif d'enregistrement et de lecture de signaux de donnees

Country Status (5)

Country Link
US (1) US3952329A (fr)
JP (1) JPS51103410A (fr)
DE (1) DE2557090A1 (fr)
FR (1) FR2300387A1 (fr)
GB (1) GB1518731A (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4195318A (en) * 1978-03-20 1980-03-25 Sperry Corporation High density bias linearized magnetic recording system utilizing Nyquist bandwidth partial response transmission
FR2459529A1 (fr) * 1979-06-18 1981-01-09 Cii Honeywell Bull Procede et dispositif d'enregistrement magnetique numerique avec polarisation a haute frequence
FR2460522A1 (fr) * 1979-07-02 1981-01-23 Cii Honeywell Bull Procede et dispositif d'enregistrement magnetique numerique avec polarisation a haute frequence
US4314289A (en) * 1979-12-07 1982-02-02 International Business Machines Corporation Biased pulsed recording systems and methods
FR2527819A1 (fr) * 1982-05-25 1983-12-02 Thomson Brandt Procede d'enregistrement et de lecture par echantillonnage de signaux sonores sur un support magnetique
DE3233489A1 (de) * 1982-09-09 1984-03-15 Tandberg Data A/S, Oslo Schaltungsanordnung zum aufzeichnen von daten auf einen magnetischen aufzeichnungstraeger
FR2615998A1 (fr) * 1987-05-27 1988-12-02 Bull Sa Mode d'ecriture d'informations de synchronisation sur un support d'enregistrement magnetique
JP2818129B2 (ja) * 1995-03-27 1998-10-30 秋田県 情報記録再生方式及びその情報記録再生方式を適用したデータ記録再生装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1762957A1 (de) * 1968-09-30 1970-12-23 Siemens Ag Verfahren und Anordnung zur UEbertragung eines analogen Signals
US3569948A (en) * 1967-08-23 1971-03-09 Subscription Television Inc High bit density record and reproduce system with selected frequency band component dispersal

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2071533A5 (fr) * 1969-12-30 1971-09-17 Ibm France
US3882485A (en) * 1973-10-03 1975-05-06 Gte Laboratories Inc Universal polybinary modem

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3569948A (en) * 1967-08-23 1971-03-09 Subscription Television Inc High bit density record and reproduce system with selected frequency band component dispersal
DE1762957A1 (de) * 1968-09-30 1970-12-23 Siemens Ag Verfahren und Anordnung zur UEbertragung eines analogen Signals

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
ARTICLE: "GENERATION OF SYNCHRONOUS DATA TRANSMISSION SIGNALS BY DIGITAL ECHO MODULATION" CHOQUET ET AL. ) *
ARTICLE: "SOME NEW WAYS OF INCREASING DISCRETE DATA TRANSMISSION RATES" PELEKHATYI *
REVUE US IBM JOURNAL OF RESEARCH AND DEVELOPMENT, VOL. 15, NO. 5, SEPTEMBRE 1971, PAGES 364 A 377 *
REVUE US TELECOMMUNICATIONS AND RADIO ENGINEERING, TRADUCTION DU RUSSE , 1966, NO. 3, MARS 1966, PAGES 25 A 32 *

Also Published As

Publication number Publication date
DE2557090A1 (de) 1976-08-19
FR2300387B1 (fr) 1978-05-19
US3952329A (en) 1976-04-20
GB1518731A (en) 1978-07-26
JPS51103410A (fr) 1976-09-13

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Legal Events

Date Code Title Description
ST Notification of lapse