FR87555E - Improvements to loudspeakers, microphones and similar electrodynamic devices - Google Patents

Improvements to loudspeakers, microphones and similar electrodynamic devices

Info

Publication number
FR87555E
FR87555E FR9506A FR87555DA FR87555E FR 87555 E FR87555 E FR 87555E FR 9506 A FR9506 A FR 9506A FR 87555D A FR87555D A FR 87555DA FR 87555 E FR87555 E FR 87555E
Authority
FR
France
Prior art keywords
loudspeakers
microphones
similar
electrodynamic devices
electrodynamic
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
FR9506A
Other languages
French (fr)
Inventor
Georges Gogny
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 FR87555E publication Critical patent/FR87555E/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
    • H04R9/06—Loudspeakers
    • H04R9/063—Loudspeakers using a plurality of acoustic drivers
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
FR9506A 1960-06-23 1965-03-17 Improvements to loudspeakers, microphones and similar electrodynamic devices Expired FR87555E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR830847A FR1269138A (en) 1960-06-23 1960-06-23 Improvements to loudspeakers, microphones, and similar electrodynamic devices

Publications (1)

Publication Number Publication Date
FR87555E true FR87555E (en) 1966-01-07

Family

ID=8734012

Family Applications (2)

Application Number Title Priority Date Filing Date
FR830847A Expired FR1269138A (en) 1960-06-23 1960-06-23 Improvements to loudspeakers, microphones, and similar electrodynamic devices
FR9506A Expired FR87555E (en) 1960-06-23 1965-03-17 Improvements to loudspeakers, microphones and similar electrodynamic devices

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR830847A Expired FR1269138A (en) 1960-06-23 1960-06-23 Improvements to loudspeakers, microphones, and similar electrodynamic devices

Country Status (4)

Country Link
US (1) US3171904A (en)
DE (2) DE1195356B (en)
FR (2) FR1269138A (en)
GB (1) GB986390A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1269138A (en) * 1960-06-23 1961-08-11 Improvements to loudspeakers, microphones, and similar electrodynamic devices
SU581598A1 (en) * 1974-12-17 1977-11-25 Kasatkin Aleksej F Band loudspeaker
US4210786A (en) * 1979-01-24 1980-07-01 Magnepan, Incorporated Magnetic field structure for planar speaker
FR2450020A1 (en) * 1979-02-20 1980-09-19 Soria Jean Yves Loudspeaker with several electrodynamic driving units - which fit over membrane to apply uniform force to latter
FR2477821A1 (en) * 1980-03-06 1981-09-11 3A Art Acoustique Appliquee Sa ELECTRODYNAMIC SPEAKER
FR2477824A1 (en) * 1980-03-07 1981-09-11 Spiteri Ernest IMPROVEMENTS IN ELECTRODYNAMIC LOUDSPEAKERS WITH EXPANDED POLYSTYRENE FLAT MEMBRANE
US4468530A (en) * 1982-01-25 1984-08-28 Torgeson W Lee Loudspeaker system
US4491698A (en) * 1982-06-17 1985-01-01 David A. Larson Electro-acoustic transducer with diaphragm and blank therefor
US4703510A (en) * 1982-06-17 1987-10-27 Larson David A Electro-acoustic transducer with diaphragm and blank therefor
US4536623A (en) * 1983-06-16 1985-08-20 Larson David A Electro-acoustic transducer with diaphragm and blank therefor
US4604792A (en) * 1984-12-20 1986-08-12 Lff & Associates Method for making electro-acoustic transducer apparatus
GB2347818A (en) * 1999-03-10 2000-09-13 Steff Lin Flat type loud speaker
ES2376731B1 (en) * 2010-06-07 2013-02-01 Acústica Beyma, S.L. FOLDED DIAPHRAGM SPEAKER.

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE447620C (en) * 1927-08-06 Siemens & Halske Akt Ges Electrodynamic telephone
DE484339C (en) * 1929-10-15 Lorenz Akt Ges C Electrodynamic telephone, especially for loudspeakers
GB160223A (en) * 1919-11-18 1921-03-18 Adrian Francis Sykes Improvements in telephonic and like apparatus
NL15444C (en) * 1923-06-08
DE456570C (en) * 1926-04-02 1928-02-21 Siemens & Halske Akt Ges Electrodynamic telephone
CH133508A (en) * 1927-03-12 1929-06-15 Siemens Ag Membrane.
DE500723C (en) * 1928-11-13 1930-06-24 Siemens & Halske Akt Ges Electrodynamic telephone with a rust-shaped magnet system
US1987412A (en) * 1931-05-12 1935-01-08 Siemens Ag Acoustic apparatus
US2297218A (en) * 1937-04-24 1942-09-29 Hans E Henrich Loud-speaker
US2978671A (en) * 1951-08-11 1961-04-04 Harris Transducer Corp Electrodynamic transducer
US2978669A (en) * 1954-03-08 1961-04-04 Harris Transducer Corp Underwater electrodynamic acoustic transducer with air-filled composite diaphragm
FR1169701A (en) * 1957-03-15 1959-01-05 Ct D Etudes Et De Dev De L Ele Electromagnetic device, especially for microphones and headphones
NL236904A (en) * 1958-03-07
US3111187A (en) * 1959-11-23 1963-11-19 H J Leak & Company Ltd Diaphragm for electro acoustic transducer
FR1269138A (en) * 1960-06-23 1961-08-11 Improvements to loudspeakers, microphones, and similar electrodynamic devices

Also Published As

Publication number Publication date
US3171904A (en) 1965-03-02
DE1259948B (en) 1968-02-01
GB986390A (en) 1965-03-17
FR1269138A (en) 1961-08-11
DE1195356B (en) 1965-06-24

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