GB191003179A - Improvements in Microphones. - Google Patents

Improvements in Microphones.

Info

Publication number
GB191003179A
GB191003179A GB191003179DA GB191003179A GB 191003179 A GB191003179 A GB 191003179A GB 191003179D A GB191003179D A GB 191003179DA GB 191003179 A GB191003179 A GB 191003179A
Authority
GB
United Kingdom
Prior art keywords
diaphragms
carbon
microphones
microphone
washers
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
Inventor
Guillaume Arnaud Nussbaum
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 GB191003179A publication Critical patent/GB191003179A/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
    • H04R21/021—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)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)

Abstract

3179. Nussbaum, G. A. Feb. 9. Microphones.-The granules F of a microphone rest in the recess formed by the outer carbon diaphragms A and the perforated intermediate diaphragms B. The diaphragms B are separated by a thin air gap and the peripheral washers C. The diaphragms may be of carbon, metal, cardboard, mica, or fibre. Central washers may be used to separate the outer diaphragm from the intermediate ones. The microphone may be mounted so that both outer diaphragms are acted on simultaneously.
GB191003179D 1910-02-09 1910-02-09 Improvements in Microphones. Expired GB191003179A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191003179T 1910-02-09

Publications (1)

Publication Number Publication Date
GB191003179A true GB191003179A (en) 1910-11-03

Family

ID=32560560

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191003179D Expired GB191003179A (en) 1910-02-09 1910-02-09 Improvements in Microphones.

Country Status (3)

Country Link
DE (1) DE243505C (en)
FR (1) FR425338A (en)
GB (1) GB191003179A (en)

Also Published As

Publication number Publication date
DE243505C (en)
FR425338A (en) 1911-06-08

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