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FR676562A - Improvements made to condenser microphones - Google Patents

Improvements made to condenser microphones

Info

Publication number
FR676562A
FR676562A FR676562DA FR676562A FR 676562 A FR676562 A FR 676562A FR 676562D A FR676562D A FR 676562DA FR 676562 A FR676562 A FR 676562A
Authority
FR
France
Prior art keywords
improvements made
condenser microphones
microphones
condenser
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)
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.)
COMPACNIE FRANCAISE POUR L EXP
Compagnie Francaise Thomson Houston SA
Original Assignee
COMPACNIE FRANCAISE POUR L EXP
Compagnie Francaise Thomson Houston SA
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 COMPACNIE FRANCAISE POUR L EXP, Compagnie Francaise Thomson Houston SA filed Critical COMPACNIE FRANCAISE POUR L EXP
Application granted granted Critical
Publication of FR676562A publication Critical patent/FR676562A/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
    • H04R19/00—Electrostatic transducers
    • H04R19/04—Microphones

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
FR676562D 1928-06-13 1929-06-12 Improvements made to condenser microphones Expired FR676562A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US285085A US1780671A (en) 1928-06-13 1928-06-13 Condenser microphone

Publications (1)

Publication Number Publication Date
FR676562A true FR676562A (en) 1930-02-25

Family

ID=23092673

Family Applications (1)

Application Number Title Priority Date Filing Date
FR676562D Expired FR676562A (en) 1928-06-13 1929-06-12 Improvements made to condenser microphones

Country Status (2)

Country Link
US (1) US1780671A (en)
FR (1) FR676562A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2579162A (en) * 1950-02-24 1951-12-18 Altec Lansing Corp Shielded condenser microphone

Also Published As

Publication number Publication date
US1780671A (en) 1930-11-04

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