FR708232A - Method and apparatus for reproducing photographic sound recordings - Google Patents

Method and apparatus for reproducing photographic sound recordings

Info

Publication number
FR708232A
FR708232A FR708232DA FR708232A FR 708232 A FR708232 A FR 708232A FR 708232D A FR708232D A FR 708232DA FR 708232 A FR708232 A FR 708232A
Authority
FR
France
Prior art keywords
sound recordings
photographic sound
reproducing photographic
reproducing
recordings
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
Freeman Harrison Owens
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 FR708232A publication Critical patent/FR708232A/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
FR708232D 1930-12-22 1930-12-22 Method and apparatus for reproducing photographic sound recordings Expired FR708232A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR708232T 1930-12-22

Publications (1)

Publication Number Publication Date
FR708232A true FR708232A (en) 1931-07-21

Family

ID=9068803

Family Applications (1)

Application Number Title Priority Date Filing Date
FR708232D Expired FR708232A (en) 1930-12-22 1930-12-22 Method and apparatus for reproducing photographic sound recordings

Country Status (1)

Country Link
FR (1) FR708232A (en)

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