FR768949A - Method and apparatus for recording sound - Google Patents

Method and apparatus for recording sound

Info

Publication number
FR768949A
FR768949A FR768949DA FR768949A FR 768949 A FR768949 A FR 768949A FR 768949D A FR768949D A FR 768949DA FR 768949 A FR768949 A FR 768949A
Authority
FR
France
Prior art keywords
recording sound
sound
recording
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Application granted granted Critical
Publication of FR768949A publication Critical patent/FR768949A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
FR768949D 1933-02-24 1934-02-22 Method and apparatus for recording sound Expired FR768949A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US658345A US1971442A (en) 1933-02-24 1933-02-24 Phonographic apparatus

Publications (1)

Publication Number Publication Date
FR768949A true FR768949A (en) 1934-08-16

Family

ID=24640866

Family Applications (1)

Application Number Title Priority Date Filing Date
FR768949D Expired FR768949A (en) 1933-02-24 1934-02-22 Method and apparatus for recording sound

Country Status (4)

Country Link
US (1) US1971442A (en)
DE (1) DE619410C (en)
FR (1) FR768949A (en)
GB (1) GB432811A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3239827A (en) * 1960-01-12 1966-03-08 Rosemount Eng Co Ltd High precision pressure standard
US4219099A (en) * 1977-10-11 1980-08-26 Bernard Sacks Acoustic reproduction transducer enclosure
DE102010043859A1 (en) * 2010-11-12 2012-05-16 BSH Bosch und Siemens Hausgeräte GmbH Beverage preparation device with different sound images

Also Published As

Publication number Publication date
DE619410C (en) 1935-09-30
GB432811A (en) 1935-08-02
US1971442A (en) 1934-08-28

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