FR535475A - Microphone pouvant être mis en action directement à l'endroit de la production du son - Google Patents

Microphone pouvant être mis en action directement à l'endroit de la production du son

Info

Publication number
FR535475A
FR535475A FR535475DA FR535475A FR 535475 A FR535475 A FR 535475A FR 535475D A FR535475D A FR 535475DA FR 535475 A FR535475 A FR 535475A
Authority
FR
France
Prior art keywords
microphone
point
sound production
activated directly
activated
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
Other languages
English (en)
French (fr)
Inventor
Sigmund Loewe
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.)
Dr Erich F Huth GmbH
Original Assignee
Dr Erich F Huth 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 Dr Erich F Huth GmbH filed Critical Dr Erich F Huth GmbH
Application granted granted Critical
Publication of FR535475A publication Critical patent/FR535475A/fr
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
    • H04R21/00—Variable-resistance transducers
    • H04R21/02—Microphones
    • H04R21/021—Microphones with granular resistance material
    • 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
    • H04R1/14—Throat mountings for microphones
    • 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
    • H04R1/46—Special adaptations for use as contact microphones, e.g. on musical instrument, on stethoscope

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Prostheses (AREA)
FR535475D 1915-12-31 1920-07-08 Microphone pouvant être mis en action directement à l'endroit de la production du son Expired FR535475A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1664220X 1915-12-31

Publications (1)

Publication Number Publication Date
FR535475A true FR535475A (fr) 1922-04-15

Family

ID=7738668

Family Applications (1)

Application Number Title Priority Date Filing Date
FR535475D Expired FR535475A (fr) 1915-12-31 1920-07-08 Microphone pouvant être mis en action directement à l'endroit de la production du son

Country Status (4)

Country Link
US (1) US1664220A (enrdf_load_stackoverflow)
DE (2) DE301724C (enrdf_load_stackoverflow)
FR (1) FR535475A (enrdf_load_stackoverflow)
GB (1) GB148312A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
DE301724C (enrdf_load_stackoverflow)
DE309261C (enrdf_load_stackoverflow)
US1664220A (en) 1928-03-27
GB148312A (en) 1921-10-10

Similar Documents

Publication Publication Date Title
FR535475A (fr) Microphone pouvant être mis en action directement à l'endroit de la production du son
FR492508A (fr) Construction d'édifices au moyen de sections
FR452222A (fr) Perfectionnement de la transmission téléphonique de la parole
FR453187A (fr) Perfectionnements à la fabrication de l'hydrogène
FR444047A (fr) Releveur d'épis
FR484349A (fr) Perfectionnements à l'affinage du zinc
FR455104A (fr) Corset-brassière de fillette
FR457661A (fr) Procédé d'investigation du sous-sol
FR439230A (fr) Beche de sapeur
FR427056A (fr) Foudre permettant l'évacuation de la lie
FR17406E (fr) Perfectionnement de la transmission téléphonique de la parole
FR473976A (fr) "matériau" de construction dit : céramo-sgraffite
CH72565A (de) Mikrotelephon
ES64608A3 (es) La fabricación de arandelas llamadas vulgarmente "Growoer".
FR443236A (fr) Microphone
FR433236A (fr) Microphone
CH54931A (de) Mikrophon
FI4397A (fi) Torvsträrivare benämnd "Murtaja"
FI4423A (fi) Ströpåse benämnd "Axolus"
FR436978A (fr) Bandage de fortune d'un montage facile
CH60402A (de) Mikrophon
CH60214A (it) Microfono
FR431030A (fr) Foudre permettant l'évacuation de la lie
FI4574A (fi) Yhteenlaskukoneen rakenne
FI5326A (fi) Sädtorkningsapparat "Såka"