GB474276A - Improvements in or relating to sound and picture recording apparatus - Google Patents

Improvements in or relating to sound and picture recording apparatus

Info

Publication number
GB474276A
GB474276A GB33348/36A GB3334836A GB474276A GB 474276 A GB474276 A GB 474276A GB 33348/36 A GB33348/36 A GB 33348/36A GB 3334836 A GB3334836 A GB 3334836A GB 474276 A GB474276 A GB 474276A
Authority
GB
United Kingdom
Prior art keywords
sound
recording
circuit
film
massolle
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
GB33348/36A
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.)
JOSEPH MASSOLLE GmbH
Original Assignee
JOSEPH MASSOLLE 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 JOSEPH MASSOLLE GmbH filed Critical JOSEPH MASSOLLE GmbH
Publication of GB474276A publication Critical patent/GB474276A/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

Landscapes

  • Optical Recording Or Reproduction (AREA)

Abstract

474,276. Optical sound-recording processes; valve amplifying circuits. MASSOLLE GES., J., and MASSOLLE, J. Dec. 4, 1936, No. 33348. Convention date, Dec. 4, 1935. [Class 40 (ii)] [Also in Group XL] In the direct recording of sound and pictures on a single film, adjustable means are provided in the sound-recording circuit whereby the frequency response of the particular film being employed at any time may be compensated. The compensating means may comprise a number of resistance units 4, 5, 6, which are inserted in the anode circuit of an amplifying valve 3 in the microphone circuit, either separately or in combination, in accordance with tests previously carried out with the various kinds of film employed. The lightcontrolling apparatus 9 or the transformer 8 may be connected in parallel with the compensating resistances. Suitable decompensating devices may be provided for insertion in the recording circuit when it is desired to examine the sounds translated by the microphone.
GB33348/36A 1935-12-04 1936-12-04 Improvements in or relating to sound and picture recording apparatus Expired GB474276A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE474276X 1935-12-04

Publications (1)

Publication Number Publication Date
GB474276A true GB474276A (en) 1937-10-28

Family

ID=6541693

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33348/36A Expired GB474276A (en) 1935-12-04 1936-12-04 Improvements in or relating to sound and picture recording apparatus

Country Status (1)

Country Link
GB (1) GB474276A (en)

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