EP0152926A3 - Electrodynamic loudspeaker with omni-directional sound radiations - Google Patents

Electrodynamic loudspeaker with omni-directional sound radiations Download PDF

Info

Publication number
EP0152926A3
EP0152926A3 EP85101658A EP85101658A EP0152926A3 EP 0152926 A3 EP0152926 A3 EP 0152926A3 EP 85101658 A EP85101658 A EP 85101658A EP 85101658 A EP85101658 A EP 85101658A EP 0152926 A3 EP0152926 A3 EP 0152926A3
Authority
EP
European Patent Office
Prior art keywords
loudspeaker
membrane
carrier part
moving coil
coil means
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.)
Granted
Application number
EP85101658A
Other languages
German (de)
Other versions
EP0152926B1 (en
EP0152926A2 (en
Inventor
Rainer J. Haas
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 AT85101658T priority Critical patent/ATE35361T1/en
Publication of EP0152926A2 publication Critical patent/EP0152926A2/en
Publication of EP0152926A3 publication Critical patent/EP0152926A3/en
Application granted granted Critical
Publication of EP0152926B1 publication Critical patent/EP0152926B1/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
    • 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

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

An electrodynamic loudspeaker for the high or mid-range sound region emits sound omnidirectionally. The loudspeaker comprises two identical individual loudspeakers arranged on opposite sides of a plane of mirror symmetry. Each loudspeaker has a drive unit with a permanent magnet fixed at a carrier part common to both sides and a moving coil means, including a winding and a bobbin, elastically held by a spider at carrier part. Each moving coil means is rigidly connected with a hemispherical membrane. The carrier part is formed as a ring and is limited by a spherical ring surface having a diameter which is somewhat smaller than twice the diameter of the outer rim of the membrane. The moving coil means has a diameter substantially the same as the outer edge of the membrane.
EP85101658A 1984-02-17 1985-02-15 Electrodynamic loudspeaker with omni-directional sound radiations Expired EP0152926B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85101658T ATE35361T1 (en) 1984-02-17 1985-02-15 OMNIDIRECTIONAL ELECTRODYNAMIC LOUDSPEAKER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3405635 1984-02-17
DE19843405635 DE3405635A1 (en) 1984-02-17 1984-02-17 ELECTRODYNAMIC SPEAKER WITH ALL-ROUND SOUND EMISSION

Publications (3)

Publication Number Publication Date
EP0152926A2 EP0152926A2 (en) 1985-08-28
EP0152926A3 true EP0152926A3 (en) 1985-09-25
EP0152926B1 EP0152926B1 (en) 1988-06-22

Family

ID=6227950

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85101658A Expired EP0152926B1 (en) 1984-02-17 1985-02-15 Electrodynamic loudspeaker with omni-directional sound radiations

Country Status (5)

Country Link
US (1) US4665550A (en)
EP (1) EP0152926B1 (en)
JP (1) JPH0732517B2 (en)
AT (1) ATE35361T1 (en)
DE (2) DE3405635A1 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5127060A (en) * 1987-10-02 1992-06-30 Linaeum Corporation Centering device for speaker diaphragm
DE3915205A1 (en) * 1989-05-10 1990-11-15 Magnat Electronik Gmbh & Co Kg Loudspeaker housing - has individual auxiliary loudspeakers supported within auxiliary housing units attached to sides of main loudspeaker unit
FR2648664A1 (en) * 1989-06-15 1990-12-21 Commissariat Energie Atomique OMNIDIRECTIONAL SPHERICAL MEMBRANE SPEAKER USING A MAGNETOSTRICTIVE RIBBON
US4989254A (en) * 1989-06-30 1991-01-29 Amalaha Leonard D Electro-acoustic transducer and manufacturing process
US5319165A (en) * 1990-04-25 1994-06-07 Ford Motor Company Dual bandpass secondary source
US5323466A (en) * 1990-04-25 1994-06-21 Ford Motor Company Tandem transducer magnet structure
US5526441A (en) * 1991-11-15 1996-06-11 Codnia; Basilio Full range convex electrodynamic loudspeaker
JP3177758B2 (en) * 1993-04-07 2001-06-18 ミネベア株式会社 Speaker and method of manufacturing the same
US5701358A (en) * 1994-07-05 1997-12-23 Larsen; John T. Isobaric loudspeaker
US6618487B1 (en) 1996-09-03 2003-09-09 New Transducers Limited Electro-dynamic exciter
DE19821862A1 (en) * 1998-05-15 1999-11-18 Nokia Deutschland Gmbh Flat panel loudspeaker
US6047077A (en) * 1998-09-29 2000-04-04 Larsen; John T. Bipolar speaker
JP3778793B2 (en) * 2000-01-28 2006-05-24 富士通テン株式会社 Speaker system
US6856692B2 (en) * 2003-02-27 2005-02-15 Steff Lin Combination speaker enclosure mounting structure
DK1757161T3 (en) * 2004-05-14 2017-02-27 Sonion Nederland Bv Double membrane electroacoustic transducer
US20080008346A1 (en) * 2006-07-06 2008-01-10 Pt. Hartono Istana Teknologi Dynamic reflection 4pi steradian omni directional tweeter
US9731211B2 (en) 2014-07-16 2017-08-15 Traxxas, L.P. On-board audio system for a model vehicle
USD834111S1 (en) 2014-10-01 2018-11-20 Traxxas Lp Transducer mount
USD880453S1 (en) * 2018-07-25 2020-04-07 Dolby Laboratories Licensing Corporation Speaker

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3393764A (en) * 1966-12-27 1968-07-23 Curtiss R. Schafer Loudspeaker systems
US3979566A (en) * 1973-12-12 1976-09-07 Erazm Alfred Willy Electromagnetic transducer
FR2393500A1 (en) * 1977-06-04 1978-12-29 Manger J W LOUD SPEAKER
US4167985A (en) * 1976-05-13 1979-09-18 Dunlavy John H Speaker system
EP0017886A1 (en) * 1979-04-13 1980-10-29 Klein, Siegfried, Dr. Corona-loudspeaker
US4306121A (en) * 1979-04-12 1981-12-15 Instrument Systems Corporation Electro-acoustic transducer assembly

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3456755A (en) * 1963-07-29 1969-07-22 John Walker Hydraulic loudspeakers
DE1815694C2 (en) * 1968-12-19 1971-02-18 Manger J W Electrodynamic converter system
US3720787A (en) * 1970-03-28 1973-03-13 Victor Company Of Japan Omni-directional globular speaker system
GB1350051A (en) * 1972-02-15 1974-04-18 Teire J M Enclosure for loudspeakers
JPS5325554Y2 (en) * 1973-12-28 1978-06-30
FR2503516B1 (en) * 1981-04-01 1986-02-07 Klein Siegfried OMNIDIRECTIONAL ELECTRODYNAMIC SPEAKER FOR LOW AND MEDIUM SOUND SPECTRUM FREQUENCIES

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3393764A (en) * 1966-12-27 1968-07-23 Curtiss R. Schafer Loudspeaker systems
US3979566A (en) * 1973-12-12 1976-09-07 Erazm Alfred Willy Electromagnetic transducer
US4167985A (en) * 1976-05-13 1979-09-18 Dunlavy John H Speaker system
FR2393500A1 (en) * 1977-06-04 1978-12-29 Manger J W LOUD SPEAKER
US4306121A (en) * 1979-04-12 1981-12-15 Instrument Systems Corporation Electro-acoustic transducer assembly
EP0017886A1 (en) * 1979-04-13 1980-10-29 Klein, Siegfried, Dr. Corona-loudspeaker

Also Published As

Publication number Publication date
EP0152926B1 (en) 1988-06-22
DE3405635A1 (en) 1985-08-22
DE3563504D1 (en) 1988-07-28
JPS60242798A (en) 1985-12-02
ATE35361T1 (en) 1988-07-15
EP0152926A2 (en) 1985-08-28
US4665550A (en) 1987-05-12
JPH0732517B2 (en) 1995-04-10

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