EP0232760A3 - Broad band loudspeaker provided with a membrane surface divided into a plurality of parts corresponding to a plurality of frequency bands - Google Patents

Broad band loudspeaker provided with a membrane surface divided into a plurality of parts corresponding to a plurality of frequency bands

Info

Publication number
EP0232760A3
EP0232760A3 EP87100806A EP87100806A EP0232760A3 EP 0232760 A3 EP0232760 A3 EP 0232760A3 EP 87100806 A EP87100806 A EP 87100806A EP 87100806 A EP87100806 A EP 87100806A EP 0232760 A3 EP0232760 A3 EP 0232760A3
Authority
EP
European Patent Office
Prior art keywords
frequency bands
membrane surface
parts corresponding
broad band
surface divided
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
EP87100806A
Other languages
German (de)
Other versions
EP0232760A2 (en
EP0232760B1 (en
Inventor
Peter Dipl.-Ing. Pfleiderer
Original Assignee
PFLEID-WOHNRAUMAKUSTIK GmbH
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 PFLEID-WOHNRAUMAKUSTIK GmbH filed Critical PFLEID-WOHNRAUMAKUSTIK GmbH
Publication of EP0232760A2 publication Critical patent/EP0232760A2/en
Publication of EP0232760A3 publication Critical patent/EP0232760A3/en
Application granted granted Critical
Publication of EP0232760B1 publication Critical patent/EP0232760B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; 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
    • H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers
    • H04R7/125—Non-planar diaphragms or cones comprising a plurality of sections or layers comprising a plurality of superposed layers in contact
    • 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
    • H04R9/045—Mounting

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
EP87100806A 1986-02-05 1987-01-21 Broad band loudspeaker provided with a membrane surface divided into a plurality of parts corresponding to a plurality of frequency bands Expired - Lifetime EP0232760B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863603537 DE3603537A1 (en) 1986-02-05 1986-02-05 BROADBAND SPEAKER
DE3603537 1986-02-05

Publications (3)

Publication Number Publication Date
EP0232760A2 EP0232760A2 (en) 1987-08-19
EP0232760A3 true EP0232760A3 (en) 1988-10-12
EP0232760B1 EP0232760B1 (en) 1991-04-10

Family

ID=6293436

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87100806A Expired - Lifetime EP0232760B1 (en) 1986-02-05 1987-01-21 Broad band loudspeaker provided with a membrane surface divided into a plurality of parts corresponding to a plurality of frequency bands

Country Status (7)

Country Link
US (1) US4821330A (en)
EP (1) EP0232760B1 (en)
JP (1) JPS6310900A (en)
KR (1) KR950011498B1 (en)
CN (1) CN1012316B (en)
DE (2) DE3603537A1 (en)
ES (1) ES2022158B3 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3904943A1 (en) * 1989-02-17 1990-09-20 Pfleiderer Peter Loudspeaker arrangement for improving the acoustic sound impression in living rooms
JPH02281899A (en) * 1989-04-22 1990-11-19 Pioneer Electron Corp Cone type loudspeaker
US5123053A (en) * 1990-07-11 1992-06-16 Harman International Industries, Incorporated Loudspeaker suspension
JP3494711B2 (en) * 1994-09-05 2004-02-09 パイオニア株式会社 Speaker device for reproducing high-pitched sound and method of manufacturing the same
IT1285103B1 (en) * 1996-04-02 1998-06-03 Paolo Agostinelli ELECTROACOUSTIC DIFFUSION DEVICE, WITH DIAPHRAGM, CENTERING AND HORNS IN BALSA WOOD OR ITS MIXTURE.
GB2315185A (en) * 1996-07-09 1998-01-21 B & W Loudspeakers Diaphragm surrounds for loudspeaker drive units
US5883967A (en) * 1997-04-15 1999-03-16 Harman International Industries, Incorporated Slotted diaphragm loudspeaker
US6647122B1 (en) 1998-09-28 2003-11-11 Pioneer Electronics Technology, Inc. Loudspeaker drive unit
US6343128B1 (en) 1999-02-17 2002-01-29 C. Ronald Coffin Dual cone loudspeaker
US6466676B2 (en) 2000-02-09 2002-10-15 C. Ronald Coffin Compound driver for acoustical applications
JP2001258092A (en) * 2000-03-14 2001-09-21 Pioneer Electronic Corp Loudspeaker component and its manufacturing method
JP2002315094A (en) * 2001-04-18 2002-10-25 Minebea Co Ltd Loudspeaker
US7177440B2 (en) * 2002-12-31 2007-02-13 Step Technologies Inc. Electromagnetic transducer with asymmetric diaphragm
US9185492B2 (en) * 2009-04-10 2015-11-10 Immerz, Inc. Systems and methods for acousto-haptic speakers
GB201513555D0 (en) 2015-07-31 2015-09-16 Pss Belgium Nv Audio system
US11012788B2 (en) 2018-03-27 2021-05-18 Sony Corporation Loudspeaker system
EP3547713B1 (en) 2018-03-27 2023-11-22 Sony Group Corporation Loudspeaker with an acoustic waveguide, and method
CN110636416B (en) * 2019-10-12 2023-10-31 安克创新科技股份有限公司 Vibrating diaphragm ring

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2007747A (en) * 1933-03-17 1935-07-09 Rca Corp Acoustic apparatus
US2371951A (en) * 1943-01-07 1945-03-20 Gen Electric Double diaphragm loud-speaker
CH396099A (en) * 1959-12-03 1965-07-31 Villamossagi Televizio Es Radi Electrodynamic broadband loudspeaker with a membrane system made up of several partial membranes
US3342286A (en) * 1966-06-22 1967-09-19 Motorola Inc Compliance activated multi-diaphragm
EP0147992A2 (en) * 1983-12-27 1985-07-10 Harman International Industries, Incorporated Multi-driver loudspeaker

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2539672A (en) * 1949-04-29 1951-01-30 Rca Corp Coaxial dual-unit electrodynamic loud-speaker
US3114429A (en) * 1961-01-16 1963-12-17 Hoffman Electronics Corp Loudspeaker
DE2057905B1 (en) * 1970-11-25 1972-05-25 Romen Faser Kunststoff Loudspeaker arrangement with tweeter and woofer diaphragm driven by a drive system
NL7504714A (en) * 1974-05-01 1975-11-04 Allison Acoustics Inc DIRECT RADIATION SPEAKER.
GB1563511A (en) * 1976-03-19 1980-03-26 Harwood H Diaphragms for electroacoustic transducers
DE2751700A1 (en) * 1977-11-19 1979-05-23 Rainer C Friz Wide frequency responsive loudspeaker diaphragm - has mechanical filtering provided by elastic parts linking concentric rigid parts
JPS6050591B2 (en) * 1978-02-13 1985-11-09 松下電器産業株式会社 Articles with fluororesin coating layer
DE2927848C2 (en) * 1979-07-10 1982-05-19 Rainer Cornelius 8000 München Friz Loudspeaker with reusable membrane
DE3070816D1 (en) * 1979-11-09 1985-08-01 Matsushita Electric Ind Co Ltd Loud-speaker
NL7908896A (en) * 1979-12-11 1981-07-01 Philips Nv A MECHANICAL FILTER FOR AN ELECTRODYNAMIC CONVERTER.
US4706295A (en) * 1980-10-28 1987-11-10 United Recording Electronic Industries Coaxial loudspeaker system
DE3123098C2 (en) * 1981-06-11 1983-06-01 Martin 4600 Dortmund Stute Membrane for electroacoustic transducer systems
NL8202529A (en) * 1982-06-23 1984-01-16 Philips Nv ELECTRO-ACOUSTIC CONVERTER WITH A LONG STROKE.
DE3418047C2 (en) * 1984-05-15 1986-03-20 Pfleiderer, Peter, Dipl.-Ing., 8000 München Device for the compensation of reproduction errors of an electroacoustic transducer
US4590333A (en) * 1984-06-14 1986-05-20 John Strohbeen Multidriver loudspeaker

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2007747A (en) * 1933-03-17 1935-07-09 Rca Corp Acoustic apparatus
US2371951A (en) * 1943-01-07 1945-03-20 Gen Electric Double diaphragm loud-speaker
CH396099A (en) * 1959-12-03 1965-07-31 Villamossagi Televizio Es Radi Electrodynamic broadband loudspeaker with a membrane system made up of several partial membranes
US3342286A (en) * 1966-06-22 1967-09-19 Motorola Inc Compliance activated multi-diaphragm
EP0147992A2 (en) * 1983-12-27 1985-07-10 Harman International Industries, Incorporated Multi-driver loudspeaker

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
JOURNAL OF THE AUDIO ENGINEERING SOCIETY, Band 25, Nr. 1/2, Januar/Februar 1977, Seiten 15-23, New York, US; J.M. KATES: "Analysis of decoupled-cone loudspeakers" *
JOURNAL OF THE AUDIO ENGINEERING SOCIETY, Band 5, Nr. 1, Januar 1957, Seiten 11-17, New York, US; A.B. COHEN: "Mechanical crossover characteristics in dual diaphragm loudspeakers" *

Also Published As

Publication number Publication date
JPS6310900A (en) 1988-01-18
DE3603537C2 (en) 1992-07-23
EP0232760A2 (en) 1987-08-19
US4821330A (en) 1989-04-11
KR950011498B1 (en) 1995-10-05
DE3769162D1 (en) 1991-05-16
KR870008485A (en) 1987-09-26
CN1012316B (en) 1991-04-03
ES2022158B3 (en) 1991-12-01
EP0232760B1 (en) 1991-04-10
CN87100528A (en) 1987-10-07
DE3603537A1 (en) 1987-08-06

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