FR997864A - Improvements in methods and systems for reproducing sounds by recording them on films - Google Patents

Improvements in methods and systems for reproducing sounds by recording them on films

Info

Publication number
FR997864A
FR997864A FR997864DA FR997864A FR 997864 A FR997864 A FR 997864A FR 997864D A FR997864D A FR 997864DA FR 997864 A FR997864 A FR 997864A
Authority
FR
France
Prior art keywords
films
recording
systems
methods
reproducing sounds
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.)
Expired
Application number
Other languages
French (fr)
Inventor
Jacques Paillet
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 filed Critical
Application granted granted Critical
Publication of FR997864A publication Critical patent/FR997864A/en
Expired 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
FR997864D 1945-08-11 1945-08-11 Improvements in methods and systems for reproducing sounds by recording them on films Expired FR997864A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR997864T 1945-08-11

Publications (1)

Publication Number Publication Date
FR997864A true FR997864A (en) 1952-01-11

Family

ID=9558962

Family Applications (1)

Application Number Title Priority Date Filing Date
FR997864D Expired FR997864A (en) 1945-08-11 1945-08-11 Improvements in methods and systems for reproducing sounds by recording them on films

Country Status (1)

Country Link
FR (1) FR997864A (en)

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