GB498146A - Improvements in or relating to the recording of sounds and other oscillations upon a moving light-sensitive surface - Google Patents

Improvements in or relating to the recording of sounds and other oscillations upon a moving light-sensitive surface

Info

Publication number
GB498146A
GB498146A GB2005737A GB2005737A GB498146A GB 498146 A GB498146 A GB 498146A GB 2005737 A GB2005737 A GB 2005737A GB 2005737 A GB2005737 A GB 2005737A GB 498146 A GB498146 A GB 498146A
Authority
GB
United Kingdom
Prior art keywords
sound
recording
oscillations
sounds
relating
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
GB2005737A
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.)
Scophony Ltd
Original Assignee
Scophony Ltd
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 Scophony Ltd filed Critical Scophony Ltd
Priority to GB2005737A priority Critical patent/GB498146A/en
Publication of GB498146A publication Critical patent/GB498146A/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 Head (AREA)

Abstract

498,146. Optical sound - recording. SCOPHONY, Ltd., and WIKKENHAUSER, G. July 20, 1937, No. 20057. [Class 40 (ii)] [Also in Group XL] In an arrangement in which a double sided sound record is produced on a film F by light from a source S modulated by being passed through an optical system including a cell A through which sound-modulated high-frequency waves are passed, the crests of the recorded waves are brought always near the outer edges of the record strip to reduce noise-level at low sound amplitudes by increasing the mean highfrequency output of the oscillator when the sound amplitude decreases, this control being obtained by rectified current derived from rectification of the sound oscillations.
GB2005737A 1937-07-20 1937-07-20 Improvements in or relating to the recording of sounds and other oscillations upon a moving light-sensitive surface Expired GB498146A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2005737A GB498146A (en) 1937-07-20 1937-07-20 Improvements in or relating to the recording of sounds and other oscillations upon a moving light-sensitive surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2005737A GB498146A (en) 1937-07-20 1937-07-20 Improvements in or relating to the recording of sounds and other oscillations upon a moving light-sensitive surface

Publications (1)

Publication Number Publication Date
GB498146A true GB498146A (en) 1939-01-04

Family

ID=10139648

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2005737A Expired GB498146A (en) 1937-07-20 1937-07-20 Improvements in or relating to the recording of sounds and other oscillations upon a moving light-sensitive surface

Country Status (1)

Country Link
GB (1) GB498146A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2423254A (en) * 1944-08-25 1947-07-01 Rca Corp Frequency modulation light beam transmission

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2423254A (en) * 1944-08-25 1947-07-01 Rca Corp Frequency modulation light beam transmission

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