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FR988897A - Microphone capsule - Google Patents

Microphone capsule

Info

Publication number
FR988897A
FR988897A FR988897DA FR988897A FR 988897 A FR988897 A FR 988897A FR 988897D A FR988897D A FR 988897DA FR 988897 A FR988897 A FR 988897A
Authority
FR
France
Prior art keywords
microphone capsule
capsule
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
French (fr)
Inventor
Charles Laurent
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 FR988897A publication Critical patent/FR988897A/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)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
FR988897D 1944-01-27 1944-01-27 Microphone capsule Expired FR988897A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR988897T 1944-01-27

Publications (1)

Publication Number Publication Date
FR988897A true FR988897A (en) 1951-09-03

Family

ID=9539823

Family Applications (1)

Application Number Title Priority Date Filing Date
FR988897D Expired FR988897A (en) 1944-01-27 1944-01-27 Microphone capsule

Country Status (3)

Country Link
US (1) US2483317A (en)
FR (1) FR988897A (en)
GB (1) GB615537A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE954967C (en) * 1952-11-01 1956-12-27 Standard Elek K Ag Carbon microphone with a movable and a fixed electrode, which is divided into several partial electrodes
US2829728A (en) * 1956-11-09 1958-04-08 Ballantyne Company Protective cone assembly for loud speakers
US3845251A (en) * 1971-12-22 1974-10-29 Nippon Telegraph & Telephone Improved acoustic-electro converting device having semiconductor granules
US4288663A (en) * 1980-03-05 1981-09-08 Roanwell Corporation Noise canceling transmitter

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US518263A (en) * 1894-04-17 Chakles milde
US678972A (en) * 1901-04-11 1901-07-23 James G Nolen Telephone-transmitter.
US718310A (en) * 1902-09-08 1903-01-13 Charles C Cadden Telephone-transmitter.
US805092A (en) * 1905-02-02 1905-11-21 Charles E Aldrich Electric transmitter.
US1134236A (en) * 1911-05-25 1915-04-06 Western Electric Co Microphone.
US1439117A (en) * 1915-08-16 1922-12-19 Joseph S Newman Telephone instrument
US2014427A (en) * 1933-04-11 1935-09-17 Kellogg Switchboard & Supply Microphone
US2042821A (en) * 1933-04-20 1936-06-02 Bell Telephone Labor Inc Telephone transmitter
US2168569A (en) * 1935-03-12 1939-08-08 Siemens Ag Microphone
GB494293A (en) * 1937-04-19 1938-10-19 Standard Telphones And Cables Improvements in or relating to telephone transmitters
GB513160A (en) * 1938-03-01 1939-10-05 Donald Mcmillan Improvements in or relating to microphones
US2404772A (en) * 1942-12-21 1946-07-30 Kellogg Switchboard & Supply Telephone transmitter

Also Published As

Publication number Publication date
GB615537A (en) 1949-01-07
US2483317A (en) 1949-09-27

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