FR661315A - Improvements made to microphone capsules - Google Patents

Improvements made to microphone capsules

Info

Publication number
FR661315A
FR661315A FR661315DA FR661315A FR 661315 A FR661315 A FR 661315A FR 661315D A FR661315D A FR 661315DA FR 661315 A FR661315 A FR 661315A
Authority
FR
France
Prior art keywords
improvements made
microphone capsules
capsules
microphone
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
French (fr)
Inventor
Michel-Jean-Marius Denard
Louis-Alexandre Viot
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 filed Critical
Application granted granted Critical
Publication of FR661315A publication Critical patent/FR661315A/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
    • H04R21/00—Variable-resistance transducers
    • H04R21/02—Microphones
    • H04R21/021—Microphones with granular resistance material

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR661315D 1928-09-29 1928-09-29 Improvements made to microphone capsules Expired FR661315A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR661315T 1928-09-29

Publications (1)

Publication Number Publication Date
FR661315A true FR661315A (en) 1929-07-24

Family

ID=9010826

Family Applications (1)

Application Number Title Priority Date Filing Date
FR661315D Expired FR661315A (en) 1928-09-29 1928-09-29 Improvements made to microphone capsules

Country Status (1)

Country Link
FR (1) FR661315A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1003263B (en) * 1953-01-05 1957-02-28 Krone Kg Electrode arrangement for speaking capsules filled with charcoal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1003263B (en) * 1953-01-05 1957-02-28 Krone Kg Electrode arrangement for speaking capsules filled with charcoal

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