FR823056A - Method for optically copying vibration recordings made in relief - Google Patents

Method for optically copying vibration recordings made in relief

Info

Publication number
FR823056A
FR823056A FR823056DA FR823056A FR 823056 A FR823056 A FR 823056A FR 823056D A FR823056D A FR 823056DA FR 823056 A FR823056 A FR 823056A
Authority
FR
France
Prior art keywords
relief
recordings made
vibration recordings
optically copying
copying
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR823056A publication Critical patent/FR823056A/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
    • G11B7/28—Re-recording, i.e. transcribing information from one optical record carrier on to one or more similar or dissimilar record carriers
FR823056D 1936-06-15 1937-06-15 Method for optically copying vibration recordings made in relief Expired FR823056A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE823056X 1936-06-15

Publications (1)

Publication Number Publication Date
FR823056A true FR823056A (en) 1938-01-13

Family

ID=6745138

Family Applications (1)

Application Number Title Priority Date Filing Date
FR823056D Expired FR823056A (en) 1936-06-15 1937-06-15 Method for optically copying vibration recordings made in relief

Country Status (1)

Country Link
FR (1) FR823056A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2602364A1 (en) * 1986-07-31 1988-02-05 Michel Maksymowicz Method of recording and reading information on a medium, and information medium for implementing this method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2602364A1 (en) * 1986-07-31 1988-02-05 Michel Maksymowicz Method of recording and reading information on a medium, and information medium for implementing this method

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