FR372107A - Système de microphone - Google Patents

Système de microphone

Info

Publication number
FR372107A
FR372107A FR372107DA FR372107A FR 372107 A FR372107 A FR 372107A FR 372107D A FR372107D A FR 372107DA FR 372107 A FR372107 A FR 372107A
Authority
FR
France
Prior art keywords
microphone system
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
Henri-Georges Brisse
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.)
HENRI GEORGES BRISSE
Original Assignee
HENRI GEORGES BRISSE
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 HENRI GEORGES BRISSE filed Critical HENRI GEORGES BRISSE
Application granted granted Critical
Publication of FR372107A publication Critical patent/FR372107A/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)
FR372107D 1906-12-05 1906-12-05 Système de microphone Expired FR372107A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR372107T 1906-12-05

Publications (1)

Publication Number Publication Date
FR372107A true FR372107A (fr) 1907-03-26

Family

ID=1418906

Family Applications (1)

Application Number Title Priority Date Filing Date
FR372107D Expired FR372107A (fr) 1906-12-05 1906-12-05 Système de microphone

Country Status (1)

Country Link
FR (1) FR372107A (fr)

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