FR937420A - Uni-directional electromagnetic microphone - Google Patents

Uni-directional electromagnetic microphone

Info

Publication number
FR937420A
FR937420A FR937420DA FR937420A FR 937420 A FR937420 A FR 937420A FR 937420D A FR937420D A FR 937420DA FR 937420 A FR937420 A FR 937420A
Authority
FR
France
Prior art keywords
uni
directional electromagnetic
electromagnetic microphone
microphone
directional
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.)
RADIOELECTRIQUE SOC IND
Original Assignee
RADIOELECTRIQUE SOC IND
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 RADIOELECTRIQUE SOC IND filed Critical RADIOELECTRIQUE SOC IND
Application granted granted Critical
Publication of FR937420A publication Critical patent/FR937420A/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
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/04—Microphones

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR937420D 1946-12-20 1946-12-20 Uni-directional electromagnetic microphone Expired FR937420A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR937420T 1946-12-20

Publications (1)

Publication Number Publication Date
FR937420A true FR937420A (en) 1948-08-17

Family

ID=9457978

Family Applications (1)

Application Number Title Priority Date Filing Date
FR937420D Expired FR937420A (en) 1946-12-20 1946-12-20 Uni-directional electromagnetic microphone

Country Status (1)

Country Link
FR (1) FR937420A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4010334A (en) * 1975-01-27 1977-03-01 Demeter James K Moving magnet contact acoustic transducer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4010334A (en) * 1975-01-27 1977-03-01 Demeter James K Moving magnet contact acoustic transducer

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