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.)
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LE FILM OZAPHANE
Original Assignee
LE FILM OZAPHANE
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Filing date
Publication date
Application filed by LE FILM OZAPHANEfiledCriticalLE FILM OZAPHANE
Application grantedgrantedCritical
Publication of FR783778ApublicationCriticalpatent/FR783778A/fr
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
G11B7/28—Re-recording, i.e. transcribing information from one optical record carrier on to one or more similar or dissimilar record carriers
FR783778D1934-03-271934-03-27Procédé et dispositif pour la reproduction d'enregistrements sonores sur films
ExpiredFR783778A
(fr)