FR2470512B1 - - Google Patents

Info

Publication number
FR2470512B1
FR2470512B1 FR8024592A FR8024592A FR2470512B1 FR 2470512 B1 FR2470512 B1 FR 2470512B1 FR 8024592 A FR8024592 A FR 8024592A FR 8024592 A FR8024592 A FR 8024592A FR 2470512 B1 FR2470512 B1 FR 2470512B1
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
FR8024592A
Other languages
French (fr)
Other versions
FR2470512A1 (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.)
BM ELEKTRONIK MELETZKY KG
Original Assignee
BM ELEKTRONIK MELETZKY KG
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 BM ELEKTRONIK MELETZKY KG filed Critical BM ELEKTRONIK MELETZKY KG
Publication of FR2470512A1 publication Critical patent/FR2470512A1/fr
Application granted granted Critical
Publication of FR2470512B1 publication Critical patent/FR2470512B1/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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
FR8024592A 1979-11-21 1980-11-19 Transducteur electroacoustique Granted FR2470512A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2946981A DE2946981C2 (de) 1979-11-21 1979-11-21 Elektroakustischer Wandler

Publications (2)

Publication Number Publication Date
FR2470512A1 FR2470512A1 (fr) 1981-05-29
FR2470512B1 true FR2470512B1 (https=) 1984-05-18

Family

ID=6086571

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8024592A Granted FR2470512A1 (fr) 1979-11-21 1980-11-19 Transducteur electroacoustique

Country Status (4)

Country Link
US (1) US4379213A (https=)
JP (1) JPS5920237B2 (https=)
DE (1) DE2946981C2 (https=)
FR (1) FR2470512A1 (https=)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4616731A (en) * 1984-03-02 1986-10-14 Robinson James R Speaker system
DE4241212A1 (de) * 1992-12-08 1994-06-09 Nokia Deutschland Gmbh Schwingspulenkontaktierung für Lautsprecher
US5875255A (en) * 1997-08-28 1999-02-23 Campbell; Paul G. High power electroacoustic speaker system having wide band frequency response
AUPR317901A0 (en) 2001-02-16 2001-03-15 Arnstein, Barry Electro-acoustic converter

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1690726A (en) * 1927-04-23 1928-11-06 holinger
DE679439C (de) * 1935-04-10 1939-08-05 Pertrix Chem Fab Akt Ges Konuslautsprecher mit elektrodynamischem Antriebssystem
BE437610A (https=) * 1939-01-13 1940-07-09
DE905378C (de) 1940-10-02 1954-03-01 Hermann Papst Membran fuer Lautsprecher und andere akustische Geraete
US3424873A (en) * 1964-07-15 1969-01-28 Lincoln Walsh Coherent-sound loudspeaker
US3826333A (en) * 1973-03-21 1974-07-30 J Buckwalter Baffle for a sound producing device
US4064966A (en) * 1976-03-11 1977-12-27 Burton William D Loudspeaker apparatus
DE2709374C3 (de) * 1977-03-01 1979-11-08 Bm-Elektronik Meldtky Kg, 1000 Berlin Elektroakustischer Wandler

Also Published As

Publication number Publication date
US4379213A (en) 1983-04-05
DE2946981B1 (de) 1980-10-02
JPS5920237B2 (ja) 1984-05-11
FR2470512A1 (fr) 1981-05-29
DE2946981C2 (de) 1981-05-14
JPS574692A (en) 1982-01-11

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Legal Events

Date Code Title Description
ST Notification of lapse