FR637453A - Sound wave receiver - Google Patents

Sound wave receiver

Info

Publication number
FR637453A
FR637453A FR637453DA FR637453A FR 637453 A FR637453 A FR 637453A FR 637453D A FR637453D A FR 637453DA FR 637453 A FR637453 A FR 637453A
Authority
FR
France
Prior art keywords
sound wave
wave receiver
receiver
sound
wave
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
Walter Kuhnert
Max Maurer
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 FR637453A publication Critical patent/FR637453A/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
    • H04R21/028—Microphones with a fluid as resistance material

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Transducers For Ultrasonic Waves (AREA)
FR637453D 1926-07-09 1927-07-06 Sound wave receiver Expired FR637453A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT274067X 1926-07-09

Publications (1)

Publication Number Publication Date
FR637453A true FR637453A (en) 1928-05-01

Family

ID=3670585

Family Applications (1)

Application Number Title Priority Date Filing Date
FR637453D Expired FR637453A (en) 1926-07-09 1927-07-06 Sound wave receiver

Country Status (2)

Country Link
FR (1) FR637453A (en)
GB (1) GB274067A (en)

Also Published As

Publication number Publication date
GB274067A (en) 1928-08-09

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