GB496928A - Improvements in or relating to the recording of sound and like oscillations - Google Patents

Improvements in or relating to the recording of sound and like oscillations

Info

Publication number
GB496928A
GB496928A GB15912/38A GB1591238A GB496928A GB 496928 A GB496928 A GB 496928A GB 15912/38 A GB15912/38 A GB 15912/38A GB 1591238 A GB1591238 A GB 1591238A GB 496928 A GB496928 A GB 496928A
Authority
GB
United Kingdom
Prior art keywords
recording
oscillations
relating
sound
june
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
GB15912/38A
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
Publication of GB496928A publication Critical patent/GB496928A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Seasonings (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

496,928. Gramophone recording circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. June 22, 1937, No. 15912/38. Convention date, June 25, 1936. Divided out of 495,124. Drawings to Specification. [Class 40 (iv)] An electromechanical recording instrument having a high natural frequency, e.g. 3000, is shunted by a resistance or a condenser or a resistance and condenser in series to enable it to produce constant-velocity records. Specification 495,124 is referred to.
GB15912/38A 1936-06-25 1937-06-22 Improvements in or relating to the recording of sound and like oscillations Expired GB496928A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE495124X 1936-06-25

Publications (1)

Publication Number Publication Date
GB496928A true GB496928A (en) 1938-12-08

Family

ID=6544836

Family Applications (2)

Application Number Title Priority Date Filing Date
GB17378/37A Expired GB495124A (en) 1936-06-25 1937-06-22 Improvements in or relating to the recording of sound and like oscillations
GB15912/38A Expired GB496928A (en) 1936-06-25 1937-06-22 Improvements in or relating to the recording of sound and like oscillations

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB17378/37A Expired GB495124A (en) 1936-06-25 1937-06-22 Improvements in or relating to the recording of sound and like oscillations

Country Status (2)

Country Link
FR (1) FR823530A (en)
GB (2) GB495124A (en)

Also Published As

Publication number Publication date
GB495124A (en) 1938-11-08
FR823530A (en) 1938-01-21

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