FR800192A - Dispositif et procédé destinés à la reproduction des enregistrements sonores sur des supports de phonogrammes en forme de films
- Google Patents
Dispositif et procédé destinés à la reproduction des enregistrements sonores sur des supports de phonogrammes en forme de films
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.)
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 filedfiledCritical
Application grantedgrantedCritical
Publication of FR800192ApublicationCriticalpatent/FR800192A/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
FR800192D1935-03-181935-12-31Dispositif et procédé destinés à la reproduction des enregistrements sonores sur des supports de phonogrammes en forme de films
ExpiredFR800192A
(fr)
Verfahren zur Aufnahme von Schallfolgen für auf Film aufgenommene Bildfolgen und zur Wiedergabe der Schallfolgen während der Wiedergabe der gefilmten Bildfolgen, sowie Vorrichtung zur Durchführung des Verfahrens