FR2338613A1 - Dispositif de traitement de signal et lecteur optique de videodisque comportant un tel dispositif - Google Patents

Dispositif de traitement de signal et lecteur optique de videodisque comportant un tel dispositif

Info

Publication number
FR2338613A1
FR2338613A1 FR7601126A FR7601126A FR2338613A1 FR 2338613 A1 FR2338613 A1 FR 2338613A1 FR 7601126 A FR7601126 A FR 7601126A FR 7601126 A FR7601126 A FR 7601126A FR 2338613 A1 FR2338613 A1 FR 2338613A1
Authority
FR
France
Prior art keywords
transcription
faults
video disc
correction
detection system
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
FR7601126A
Other languages
English (en)
Other versions
FR2338613B1 (fr
Inventor
Jean-Pierre Lacotte
Francois Le Carvennec
Jean-Claude Lehureau
Pierre Oprandi
Jean-Paul Peltier
Claude Puech
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.)
Thomson-Brandt SA
Original Assignee
Thomson-Brandt SA
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 Thomson-Brandt SA filed Critical Thomson-Brandt SA
Priority to FR7601126A priority Critical patent/FR2338613A1/fr
Priority to SU772441299A priority patent/SU670253A3/ru
Publication of FR2338613A1 publication Critical patent/FR2338613A1/fr
Application granted granted Critical
Publication of FR2338613B1 publication Critical patent/FR2338613B1/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
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/005—Reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/13—Optical detectors therefor
FR7601126A 1976-01-16 1976-01-16 Dispositif de traitement de signal et lecteur optique de videodisque comportant un tel dispositif Granted FR2338613A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7601126A FR2338613A1 (fr) 1976-01-16 1976-01-16 Dispositif de traitement de signal et lecteur optique de videodisque comportant un tel dispositif
SU772441299A SU670253A3 (ru) 1976-01-16 1977-01-14 Устройство дл воспроизведени с видеогрампластинки

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7601126A FR2338613A1 (fr) 1976-01-16 1976-01-16 Dispositif de traitement de signal et lecteur optique de videodisque comportant un tel dispositif

Publications (2)

Publication Number Publication Date
FR2338613A1 true FR2338613A1 (fr) 1977-08-12
FR2338613B1 FR2338613B1 (fr) 1980-04-30

Family

ID=9168031

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7601126A Granted FR2338613A1 (fr) 1976-01-16 1976-01-16 Dispositif de traitement de signal et lecteur optique de videodisque comportant un tel dispositif

Country Status (2)

Country Link
FR (1) FR2338613A1 (fr)
SU (1) SU670253A3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0073921A2 (fr) * 1981-09-04 1983-03-16 Hitachi, Ltd. Méthode pour détecter un signal de commande d'un spot lumineux
WO1988003309A1 (fr) * 1986-10-22 1988-05-05 Deutsche Thomson-Brandt Gmbh Systeme d'exploration par rayons

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0073921A2 (fr) * 1981-09-04 1983-03-16 Hitachi, Ltd. Méthode pour détecter un signal de commande d'un spot lumineux
EP0073921A3 (en) * 1981-09-04 1984-11-14 Hitachi, Ltd. Method of detecting light spot control signal
WO1988003309A1 (fr) * 1986-10-22 1988-05-05 Deutsche Thomson-Brandt Gmbh Systeme d'exploration par rayons

Also Published As

Publication number Publication date
FR2338613B1 (fr) 1980-04-30
SU670253A3 (ru) 1979-06-25

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Legal Events

Date Code Title Description
ST Notification of lapse