FR992956A - Microphone - Google Patents

Microphone

Info

Publication number
FR992956A
FR992956A FR992956DA FR992956A FR 992956 A FR992956 A FR 992956A FR 992956D A FR992956D A FR 992956DA FR 992956 A FR992956 A FR 992956A
Authority
FR
France
Prior art keywords
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
English (en)
Inventor
Louis-Christian-Euge Thevenot
Max-Simon Fischer
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 FR992956A publication Critical patent/FR992956A/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; ELECTRIC HEARING AIDS; 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)
FR992956D 1944-10-10 1944-10-10 Microphone Expired FR992956A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR992956T 1944-10-10

Publications (1)

Publication Number Publication Date
FR992956A true FR992956A (fr) 1951-10-25

Family

ID=9555247

Family Applications (1)

Application Number Title Priority Date Filing Date
FR992956D Expired FR992956A (fr) 1944-10-10 1944-10-10 Microphone

Country Status (1)

Country Link
FR (1) FR992956A (fr)

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