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FR334303A - Microphone - Google Patents

Microphone

Info

Publication number
FR334303A
FR334303A FR334303DA FR334303A FR 334303 A FR334303 A FR 334303A FR 334303D A FR334303D A FR 334303DA FR 334303 A FR334303 A FR 334303A
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
Georges Barre
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR334303A publication Critical patent/FR334303A/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
    • H04R21/026—Microphones in which the sound is perpendicular to the current crossing the transducer material

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR334303D 1903-07-31 1903-07-31 Microphone Expired FR334303A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR334303T 1903-07-31

Publications (1)

Publication Number Publication Date
FR334303A true FR334303A (fr) 1903-12-18

Family

ID=1383844

Family Applications (1)

Application Number Title Priority Date Filing Date
FR334303D Expired FR334303A (fr) 1903-07-31 1903-07-31 Microphone

Country Status (1)

Country Link
FR (1) FR334303A (fr)

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