FR2478417B1 - - Google Patents

Info

Publication number
FR2478417B1
FR2478417B1 FR8005377A FR8005377A FR2478417B1 FR 2478417 B1 FR2478417 B1 FR 2478417B1 FR 8005377 A FR8005377 A FR 8005377A FR 8005377 A FR8005377 A FR 8005377A FR 2478417 B1 FR2478417 B1 FR 2478417B1
Authority
FR
France
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
FR8005377A
Other languages
French (fr)
Other versions
FR2478417A1 (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR8005377A priority Critical patent/FR2478417A1/fr
Priority to JP3595381A priority patent/JPS56165488A/ja
Publication of FR2478417A1 publication Critical patent/FR2478417A1/fr
Application granted granted Critical
Publication of FR2478417B1 publication Critical patent/FR2478417B1/fr
Granted 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Casings For Electric Apparatus (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
FR8005377A 1980-03-11 1980-03-11 Cellule emettrice et panneau electro-acoustique perfectionne constitue a l'aide de telles cellules Granted FR2478417A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR8005377A FR2478417A1 (fr) 1980-03-11 1980-03-11 Cellule emettrice et panneau electro-acoustique perfectionne constitue a l'aide de telles cellules
JP3595381A JPS56165488A (en) 1980-03-11 1981-03-11 Sound radiating cell for speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8005377A FR2478417A1 (fr) 1980-03-11 1980-03-11 Cellule emettrice et panneau electro-acoustique perfectionne constitue a l'aide de telles cellules

Publications (2)

Publication Number Publication Date
FR2478417A1 FR2478417A1 (fr) 1981-09-18
FR2478417B1 true FR2478417B1 (OSRAM) 1984-11-30

Family

ID=9239518

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8005377A Granted FR2478417A1 (fr) 1980-03-11 1980-03-11 Cellule emettrice et panneau electro-acoustique perfectionne constitue a l'aide de telles cellules

Country Status (2)

Country Link
JP (1) JPS56165488A (OSRAM)
FR (1) FR2478417A1 (OSRAM)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2611105B1 (fr) * 1987-02-12 1989-07-13 Fedoroff Michel Coffret modulaire pour les installations de sonorisation et installation de sonorisation realisee au moyen d'un tel coffret
GB0306415D0 (en) 2003-03-20 2003-04-23 Andrews Anthony J Loudspeaker array

Also Published As

Publication number Publication date
JPS56165488A (en) 1981-12-19
FR2478417A1 (fr) 1981-09-18

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Legal Events

Date Code Title Description
ST Notification of lapse