GB182790A - Improvements in or relating to amplification and transmission of sound waves by microphones - Google Patents

Improvements in or relating to amplification and transmission of sound waves by microphones

Info

Publication number
GB182790A
GB182790A GB18245/22A GB1824522A GB182790A GB 182790 A GB182790 A GB 182790A GB 18245/22 A GB18245/22 A GB 18245/22A GB 1824522 A GB1824522 A GB 1824522A GB 182790 A GB182790 A GB 182790A
Authority
GB
United Kingdom
Prior art keywords
microphones
amplification
relating
transmission
sound waves
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
GB18245/22A
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.)
COUPLEUX FRERES SOC
Original Assignee
COUPLEUX FRERES SOC
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 COUPLEUX FRERES SOC filed Critical COUPLEUX FRERES SOC
Publication of GB182790A publication Critical patent/GB182790A/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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/222—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only  for microphones

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

182,790. Soc. Coupleux FrÞres. July 7, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Organs, pianofortes, and stringed instruments, with sound intensifiers and transmitters.-A loudspeaking or other microphone 4 is mounted on the sound-board 3 of a pianoforte, or the soundboard, bridge or other part of a stringed, percussion, reed, or piston instrument, or one having vibrating plates of metal or wood. The microphone currents are conveyed to a distance and amplified if necessary.
GB18245/22A 1921-07-07 1922-07-03 Improvements in or relating to amplification and transmission of sound waves by microphones Expired GB182790A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR182790X 1921-07-07

Publications (1)

Publication Number Publication Date
GB182790A true GB182790A (en) 1923-10-03

Family

ID=8878345

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18245/22A Expired GB182790A (en) 1921-07-07 1922-07-03 Improvements in or relating to amplification and transmission of sound waves by microphones

Country Status (1)

Country Link
GB (1) GB182790A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3525809A (en) * 1967-09-11 1970-08-25 Pavia Farny Associates Electronic organ sound reproduction apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3525809A (en) * 1967-09-11 1970-08-25 Pavia Farny Associates Electronic organ sound reproduction apparatus

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