DE345263C - - Google Patents

Info

Publication number
DE345263C
DE345263C DENDAT345263D DE345263DA DE345263C DE 345263 C DE345263 C DE 345263C DE NDAT345263 D DENDAT345263 D DE NDAT345263D DE 345263D A DE345263D A DE 345263DA DE 345263 C DE345263 C DE 345263C
Authority
DE
Germany
Prior art keywords
housing
walls
microphone
purity
achieve
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.)
Active
Application number
DENDAT345263D
Other languages
German (de)
English (en)
Publication of DE345263C publication Critical patent/DE345263C/de
Active 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)
  • Details Of Audible-Bandwidth Transducers (AREA)
DENDAT345263D Active DE345263C (online.php)

Publications (1)

Publication Number Publication Date
DE345263C true DE345263C (online.php)

Family

ID=573668

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT345263D Active DE345263C (online.php)

Country Status (1)

Country Link
DE (1) DE345263C (online.php)

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