FR609853A - Electro-dynamic device that can be used as microphone or speaker - Google Patents

Electro-dynamic device that can be used as microphone or speaker

Info

Publication number
FR609853A
FR609853A FR609853DA FR609853A FR 609853 A FR609853 A FR 609853A FR 609853D A FR609853D A FR 609853DA FR 609853 A FR609853 A FR 609853A
Authority
FR
France
Prior art keywords
microphone
electro
speaker
dynamic device
dynamic
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.)
Societe des Etablissements Gaumont
Original Assignee
Societe des Etablissements Gaumont
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 Societe des Etablissements Gaumont filed Critical Societe des Etablissements Gaumont
Application granted granted Critical
Publication of FR609853A publication Critical patent/FR609853A/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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/046—Construction
    • H04R9/047—Construction in which the windings of the moving coil lay in the same plane
    • H04R9/048—Construction in which the windings of the moving coil lay in the same plane of the ribbon type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H04R9/063—Loudspeakers using a plurality of acoustic drivers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
FR609853D 1926-04-29 1925-05-06 Electro-dynamic device that can be used as microphone or speaker Expired FR609853A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR32649T 1926-04-29

Publications (1)

Publication Number Publication Date
FR609853A true FR609853A (en) 1926-08-25

Family

ID=8670348

Family Applications (2)

Application Number Title Priority Date Filing Date
FR609853D Expired FR609853A (en) 1926-04-29 1925-05-06 Electro-dynamic device that can be used as microphone or speaker
FR32649D Expired FR32649E (en) 1926-04-29 1926-04-29 Electro-dynamic device that can be used as microphone or speaker

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR32649D Expired FR32649E (en) 1926-04-29 1926-04-29 Electro-dynamic device that can be used as microphone or speaker

Country Status (2)

Country Link
FR (2) FR609853A (en)
GB (1) GB252002A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421820A (en) * 1941-03-07 1947-06-10 Hartford Nat Bank & Trust Co Microphone
US2691148A (en) * 1950-06-24 1954-10-05 Rca Corp Ultrasonic transducer
US3564163A (en) * 1967-04-20 1971-02-16 Robert L Wathams Ribbon loudspeaker
FR2521808A1 (en) * 1982-02-12 1983-08-19 Richard Rapp Robert Ribbon loudspeaker for HF sounds - has two magnetic poles defining air gap which contains electrically conducting ribbon
US4550228A (en) * 1983-02-22 1985-10-29 Apogee Acoustics, Inc. Ribbon speaker system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3573399A (en) * 1968-08-14 1971-04-06 Bell Telephone Labor Inc Directional microphone
US4317966A (en) * 1980-02-19 1982-03-02 Lister Clive R B Vibratory ribbon speaker

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421820A (en) * 1941-03-07 1947-06-10 Hartford Nat Bank & Trust Co Microphone
US2691148A (en) * 1950-06-24 1954-10-05 Rca Corp Ultrasonic transducer
US3564163A (en) * 1967-04-20 1971-02-16 Robert L Wathams Ribbon loudspeaker
FR2521808A1 (en) * 1982-02-12 1983-08-19 Richard Rapp Robert Ribbon loudspeaker for HF sounds - has two magnetic poles defining air gap which contains electrically conducting ribbon
US4550228A (en) * 1983-02-22 1985-10-29 Apogee Acoustics, Inc. Ribbon speaker system

Also Published As

Publication number Publication date
GB252002A (en) 1926-07-29
FR32649E (en) 1928-02-14

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