BE903139A - Circuit de production de signal d'horloge pour dispositif d'enregistrement de signaux numeriques - Google Patents

Circuit de production de signal d'horloge pour dispositif d'enregistrement de signaux numeriques

Info

Publication number
BE903139A
BE903139A BE0/215514A BE215514A BE903139A BE 903139 A BE903139 A BE 903139A BE 0/215514 A BE0/215514 A BE 0/215514A BE 215514 A BE215514 A BE 215514A BE 903139 A BE903139 A BE 903139A
Authority
BE
Belgium
Prior art keywords
recording device
clock signal
production circuit
digital signal
signal recording
Prior art date
Application number
BE0/215514A
Other languages
English (en)
Inventor
H Ishii
Original Assignee
Pioneer Electronic 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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Publication of BE903139A publication Critical patent/BE903139A/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/802—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving processing of the sound signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/93—Regeneration of the television signal or of selected parts thereof
    • H04N5/932—Regeneration of analogue synchronisation signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/93—Regeneration of the television signal or of selected parts thereof
    • H04N5/94—Signal drop-out compensation

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

Le circuit de production de signal d'horloge conforme à la présente invention est conçu de manière à ce que, en réponse à des signaux de détection d'affaiblissement, la fréquence d'oscillation d'un oscillateur d'un circuit PLL soit maintenue stable, de façon à fournir des signaux d'horloge stables, pour la démodulation, meme si le support d'enregistrement présente des griffes, salissures, et analogues.
BE0/215514A 1984-08-29 1985-08-28 Circuit de production de signal d'horloge pour dispositif d'enregistrement de signaux numeriques BE903139A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59181153A JPH0634309B2 (ja) 1984-08-29 1984-08-29 クロツク生成回路

Publications (1)

Publication Number Publication Date
BE903139A true BE903139A (fr) 1985-12-16

Family

ID=16095811

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/215514A BE903139A (fr) 1984-08-29 1985-08-28 Circuit de production de signal d'horloge pour dispositif d'enregistrement de signaux numeriques

Country Status (5)

Country Link
US (1) US4729042A (fr)
JP (1) JPH0634309B2 (fr)
BE (1) BE903139A (fr)
DE (1) DE3530203C2 (fr)
GB (1) GB2167596B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4864427A (en) * 1986-12-22 1989-09-05 Pioneer Electronic Corporation Disk reproducing method and apparatus for disks with different video bandwidths
DE277000T1 (de) * 1987-01-27 1988-11-24 Victor Company Of Japan, Ltd., Yokohama, Kanagawa Geraet zur magnetischen aufzeichnung und/oder wiedergabe.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5746306A (en) * 1980-09-03 1982-03-16 Hitachi Ltd Aural signal muting circuit of magnetic recorder and reproducer
JPS5835703A (ja) * 1981-08-24 1983-03-02 Asahi Optical Co Ltd 記録情報の再生装置
US4535366A (en) * 1982-02-22 1985-08-13 Discovision Associates Universal video data playback
EP0107295B1 (fr) * 1982-08-30 1990-08-16 Pioneer Electronic Corporation Système d'enregistrement et de reproduction du type vidéodisque
JPS59104314U (ja) * 1982-12-25 1984-07-13 パイオニア株式会社 ドロップアウト補償装置
JPS6087469A (ja) * 1983-10-19 1985-05-17 Hitachi Ltd ドロップアウト補償装置

Also Published As

Publication number Publication date
DE3530203A1 (de) 1986-03-20
GB8520575D0 (en) 1985-09-25
JPH0634309B2 (ja) 1994-05-02
DE3530203C2 (de) 1987-03-12
US4729042A (en) 1988-03-01
GB2167596B (en) 1988-06-15
GB2167596A (en) 1986-05-29
JPS6159667A (ja) 1986-03-27

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: PIONEER ELECTRIC CORP.

Effective date: 19880831