GB784955A - A new or improved method of making circular sound tracks - Google Patents

A new or improved method of making circular sound tracks

Info

Publication number
GB784955A
GB784955A GB22010/55A GB2201055A GB784955A GB 784955 A GB784955 A GB 784955A GB 22010/55 A GB22010/55 A GB 22010/55A GB 2201055 A GB2201055 A GB 2201055A GB 784955 A GB784955 A GB 784955A
Authority
GB
United Kingdom
Prior art keywords
plate
new
improved method
tracks
sound
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
GB22010/55A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB784955A publication Critical patent/GB784955A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H3/00—Instruments in which the tones are generated by electromechanical means
    • G10H3/03—Instruments in which the tones are generated by electromechanical means using pick-up means for reading recorded waves, e.g. on rotating discs drums, tapes or wires
    • G10H3/06—Instruments in which the tones are generated by electromechanical means using pick-up means for reading recorded waves, e.g. on rotating discs drums, tapes or wires using photoelectric pick-up means

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

784,955. Optical sound recording. LEMOINE, Y. July 29, 1955 [Sept. 10, 1954], No. 22010/55. Class 40 (2). A method of recording circular sound tracks for photo-electric musical instruments comprises the rotation of a sound-modulated light source 4 about the axis of a circular photographic plate 2. The source 4 is modulated by an oscillator 10 and supported with its aperture 6 and lens system 5 on a rotatable plate 3. The source is connected to the oscillator by slip rings (not shown in the Figure) and is adjustable radially on the plate 3 so that a number of tracks may be recorded on the plate 2. An exact number of wave-forms per revolution is obtained by stroboscopic means.
GB22010/55A 1954-09-10 1955-07-29 A new or improved method of making circular sound tracks Expired GB784955A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR784955X 1954-09-10

Publications (1)

Publication Number Publication Date
GB784955A true GB784955A (en) 1957-10-23

Family

ID=9217569

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22010/55A Expired GB784955A (en) 1954-09-10 1955-07-29 A new or improved method of making circular sound tracks

Country Status (1)

Country Link
GB (1) GB784955A (en)

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