FR2375782A1 - METHOD AND DEVICE FOR ERROR REDUCTION IN AUDIO-FREQUENCY SIGNAL RECORDING - Google Patents

METHOD AND DEVICE FOR ERROR REDUCTION IN AUDIO-FREQUENCY SIGNAL RECORDING

Info

Publication number
FR2375782A1
FR2375782A1 FR7739366A FR7739366A FR2375782A1 FR 2375782 A1 FR2375782 A1 FR 2375782A1 FR 7739366 A FR7739366 A FR 7739366A FR 7739366 A FR7739366 A FR 7739366A FR 2375782 A1 FR2375782 A1 FR 2375782A1
Authority
FR
France
Prior art keywords
audio
frequency signal
signal recording
recording
error reduction
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
FR7739366A
Other languages
French (fr)
Other versions
FR2375782B1 (en
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Publication of FR2375782A1 publication Critical patent/FR2375782A1/en
Application granted granted Critical
Publication of FR2375782B1 publication Critical patent/FR2375782B1/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
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1803—Error detection or correction; Testing, e.g. of drop-outs by redundancy in data representation
    • 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
    • G11B20/10527—Audio or video recording; Data buffering arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Detection And Correction Of Errors (AREA)
  • Error Detection And Correction (AREA)

Abstract

L'invention concerne l'enregistrement magnétique de signaux audiofréquences. Des signaux stéréophoniques appliqués sur les bornes 2L et 2R sont convertis sous forme numérique par les convertisseurs 5L et 5R, puis codés sous un format vidéo pour être enregistrés à l'aide d'un magnétoscope classique 1. Pour améliorer la qualité du signal reproduit, on compare deux versions décalées dans le temps du même signal d'entrée, afin de détecter des erreurs éventuelles. Application à l'enregistrement de signaux stéréophoniques sur un magnétoscopeThe invention relates to the magnetic recording of audio-frequency signals. Stereophonic signals applied to terminals 2L and 2R are converted into digital form by converters 5L and 5R, then encoded into video format for recording using a conventional VCR 1. To improve the quality of the reproduced signal, two time-shifted versions of the same input signal are compared in order to detect any errors. Application to the recording of stereophonic signals on a video tape recorder

FR7739366A 1976-12-27 1977-12-27 METHOD AND DEVICE FOR ERROR REDUCTION IN AUDIO-FREQUENCY SIGNAL RECORDING Granted FR2375782A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15827276A JPS5381222A (en) 1976-12-27 1976-12-27 Digital signal transmitting system

Publications (2)

Publication Number Publication Date
FR2375782A1 true FR2375782A1 (en) 1978-07-21
FR2375782B1 FR2375782B1 (en) 1983-02-11

Family

ID=15667972

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7739366A Granted FR2375782A1 (en) 1976-12-27 1977-12-27 METHOD AND DEVICE FOR ERROR REDUCTION IN AUDIO-FREQUENCY SIGNAL RECORDING

Country Status (9)

Country Link
JP (1) JPS5381222A (en)
AT (1) AT380608B (en)
AU (1) AU521114B2 (en)
CA (1) CA1097819A (en)
DE (1) DE2758276A1 (en)
FR (1) FR2375782A1 (en)
GB (1) GB1591059A (en)
IT (1) IT1193270B (en)
NL (1) NL7714443A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2416591A1 (en) * 1978-02-01 1979-08-31 Matsushita Electric Ind Co Ltd DIGITAL ACOUSTIC SIGNAL RECORDER
EP0010506A1 (en) * 1978-10-25 1980-04-30 Thomson-Brandt Digital coding and decoding methods and devices for the recording of audio signals with a television signal, particularly on a video disk
EP0205200A1 (en) * 1985-05-21 1986-12-17 POLYGRAM GmbH Method for transmitting audio and additional information in digital form

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5556744A (en) * 1978-10-23 1980-04-25 Sony Corp Pcm signal transmission device
CA1133639A (en) * 1979-01-30 1982-10-12 Masato Tanaka Method and apparatus for editing digital signals recorded on a record medium
US4423441A (en) * 1979-08-30 1983-12-27 Mitsubishi Denki Kabushiki Kaisha PCM Record reproducer
JPS58181394A (en) * 1982-04-16 1983-10-24 Meidensha Electric Mfg Co Ltd Code transmitting method
JPS6124063A (en) * 1984-07-11 1986-02-01 Matsushita Electric Ind Co Ltd Digital recording and reproducing device of stereophonic sound
JP2539171Y2 (en) * 1990-09-26 1997-06-25 株式会社リコー Reader

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1574639A (en) * 1967-08-08 1969-07-11
US3721773A (en) * 1970-10-09 1973-03-20 Ampex Magnetic head transducer assembly for redundantly recording data on and reproducing data from dual-tracks of a magnetic recording medium
US3761903A (en) * 1971-11-15 1973-09-25 Kybe Corp Redundant offset recording
US3883891A (en) * 1974-08-22 1975-05-13 Rca Corp Redundant signal processing error reduction technique
FR2248574A1 (en) * 1973-10-19 1975-05-16 France Etat System for recording numerical programme on magnetic tape - has counter determining period double that of introduction sign, with detection and verification

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1574639A (en) * 1967-08-08 1969-07-11
US3721773A (en) * 1970-10-09 1973-03-20 Ampex Magnetic head transducer assembly for redundantly recording data on and reproducing data from dual-tracks of a magnetic recording medium
US3761903A (en) * 1971-11-15 1973-09-25 Kybe Corp Redundant offset recording
FR2248574A1 (en) * 1973-10-19 1975-05-16 France Etat System for recording numerical programme on magnetic tape - has counter determining period double that of introduction sign, with detection and verification
US3883891A (en) * 1974-08-22 1975-05-13 Rca Corp Redundant signal processing error reduction technique

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2416591A1 (en) * 1978-02-01 1979-08-31 Matsushita Electric Ind Co Ltd DIGITAL ACOUSTIC SIGNAL RECORDER
EP0010506A1 (en) * 1978-10-25 1980-04-30 Thomson-Brandt Digital coding and decoding methods and devices for the recording of audio signals with a television signal, particularly on a video disk
US4314369A (en) 1978-10-25 1982-02-02 Thomson-Brandt Digital coding process for recording sound channels with a television signal and apparatus realizing this process
EP0205200A1 (en) * 1985-05-21 1986-12-17 POLYGRAM GmbH Method for transmitting audio and additional information in digital form

Also Published As

Publication number Publication date
AU3188377A (en) 1979-06-28
JPS5381222A (en) 1978-07-18
JPS6136311B2 (en) 1986-08-18
DE2758276C2 (en) 1990-01-11
CA1097819A (en) 1981-03-17
ATA933377A (en) 1985-10-15
IT1193270B (en) 1988-06-15
NL7714443A (en) 1978-06-29
DE2758276A1 (en) 1978-07-06
AT380608B (en) 1986-06-25
FR2375782B1 (en) 1983-02-11
GB1591059A (en) 1981-06-10
AU521114B2 (en) 1982-03-18

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Legal Events

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