FR557406A - Method and device for recording and reproducing sounds - Google Patents

Method and device for recording and reproducing sounds

Info

Publication number
FR557406A
FR557406A FR557406DA FR557406A FR 557406 A FR557406 A FR 557406A FR 557406D A FR557406D A FR 557406DA FR 557406 A FR557406 A FR 557406A
Authority
FR
France
Prior art keywords
recording
reproducing sounds
sounds
reproducing
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
Pierre Lefebure
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 FR557406A publication Critical patent/FR557406A/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
FR557406D 1922-10-13 1922-10-13 Method and device for recording and reproducing sounds Expired FR557406A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR557406T 1922-10-13

Publications (1)

Publication Number Publication Date
FR557406A true FR557406A (en) 1923-08-08

Family

ID=8940845

Family Applications (1)

Application Number Title Priority Date Filing Date
FR557406D Expired FR557406A (en) 1922-10-13 1922-10-13 Method and device for recording and reproducing sounds

Country Status (1)

Country Link
FR (1) FR557406A (en)

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