FR879531A - Device for the production of an electric control voltage varying essentially according to an enveloping of an acoustic oscillation to accelerate, to record the reproduction of the sounds - Google Patents

Device for the production of an electric control voltage varying essentially according to an enveloping of an acoustic oscillation to accelerate, to record the reproduction of the sounds

Info

Publication number
FR879531A
FR879531A FR879531DA FR879531A FR 879531 A FR879531 A FR 879531A FR 879531D A FR879531D A FR 879531DA FR 879531 A FR879531 A FR 879531A
Authority
FR
France
Prior art keywords
enveloping
sounds
accelerate
reproduction
record
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)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Klangfilm GmbH
Original Assignee
Klangfilm GmbH
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 by Klangfilm GmbH filed Critical Klangfilm GmbH
Application granted granted Critical
Publication of FR879531A publication Critical patent/FR879531A/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
FR879531D 1941-03-15 1942-02-21 Device for the production of an electric control voltage varying essentially according to an enveloping of an acoustic oscillation to accelerate, to record the reproduction of the sounds Expired FR879531A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE879531X 1941-03-15

Publications (1)

Publication Number Publication Date
FR879531A true FR879531A (en) 1943-02-25

Family

ID=6819049

Family Applications (1)

Application Number Title Priority Date Filing Date
FR879531D Expired FR879531A (en) 1941-03-15 1942-02-21 Device for the production of an electric control voltage varying essentially according to an enveloping of an acoustic oscillation to accelerate, to record the reproduction of the sounds

Country Status (1)

Country Link
FR (1) FR879531A (en)

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