WO2002013575A8 - Haut-parleur a ondes de flexion - Google Patents

Haut-parleur a ondes de flexion

Info

Publication number
WO2002013575A8
WO2002013575A8 PCT/GB2001/003353 GB0103353W WO0213575A8 WO 2002013575 A8 WO2002013575 A8 WO 2002013575A8 GB 0103353 W GB0103353 W GB 0103353W WO 0213575 A8 WO0213575 A8 WO 0213575A8
Authority
WO
WIPO (PCT)
Prior art keywords
panel
frequency
loudspeaker
waves
bending wave
Prior art date
Application number
PCT/GB2001/003353
Other languages
English (en)
Other versions
WO2002013575A1 (fr
Inventor
Henry Azima
Original Assignee
New Transducers Ltd
Henry Azima
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 New Transducers Ltd, Henry Azima filed Critical New Transducers Ltd
Priority to EP01953210A priority Critical patent/EP1305976A1/fr
Priority to JP2002518122A priority patent/JP2004506360A/ja
Priority to AU2001275706A priority patent/AU2001275706A1/en
Publication of WO2002013575A1 publication Critical patent/WO2002013575A1/fr
Publication of WO2002013575A8 publication Critical patent/WO2002013575A8/fr

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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/045—Plane diaphragms using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion
    • 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
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2440/00—Bending wave transducers covered by H04R, not provided for in its groups
    • H04R2440/01—Acoustic transducers using travelling bending waves to generate or detect sound
    • 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
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Building Environments (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

La présente invention concerne un haut-parleur comprenant un panneau qui est suffisamment rigide pour supporter des ondes de flexion. Ce panneau présente une bordure et un transducteur, qui est monté sur le panneau et permet d'appliquer sur ce panneau une énergie d'onde de flexion se présentant sous forme d'ondes progressives dispersives, à un premier emplacement, en réponse à un signal électrique appliqué au transducteur, permettant au panneau de vibrer et de produire une sortie acoustique. Ce haut-parleur présente une gamme de fréquences qui va d'une basse fréquence à une haute fréquence et une rigidité qui fournit une fréquence de coïncidence supérieure à la basse fréquence. Ledit haut-parleur comprend des systèmes qui sont fixés ou associés au panneau, à un second emplacement, et permettent d'atténuer les ondes de flexion progressives dans le panneau, afin d'empêcher ou de réduire au moins sensiblement la résonance du panneau.
PCT/GB2001/003353 2000-08-03 2001-07-27 Haut-parleur a ondes de flexion WO2002013575A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP01953210A EP1305976A1 (fr) 2000-08-03 2001-07-27 Recuperation de metaux par incineration de resine echangeuse d'ions basique metallifere
JP2002518122A JP2004506360A (ja) 2000-08-03 2001-07-27 撓み波ラウドスピーカ
AU2001275706A AU2001275706A1 (en) 2000-08-03 2001-07-27 Bending wave loudspeaker

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0018996.9 2000-08-03
GB0018996A GB0018996D0 (en) 2000-08-03 2000-08-03 Bending wave loudspeaker

Publications (2)

Publication Number Publication Date
WO2002013575A1 WO2002013575A1 (fr) 2002-02-14
WO2002013575A8 true WO2002013575A8 (fr) 2004-12-29

Family

ID=9896856

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2001/003353 WO2002013575A1 (fr) 2000-08-03 2001-07-27 Haut-parleur a ondes de flexion

Country Status (7)

Country Link
EP (1) EP1305976A1 (fr)
JP (1) JP2004506360A (fr)
CN (1) CN1470148A (fr)
AU (1) AU2001275706A1 (fr)
GB (1) GB0018996D0 (fr)
TW (1) TW530518B (fr)
WO (1) WO2002013575A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1643976A (zh) * 2002-04-17 2005-07-20 新型转换器有限公司 声音装置
DE102004061314A1 (de) 2004-12-20 2006-07-06 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Lautsprechermemebran und Verfahren zum Herstellen einer Lautsprechermembran
US8389120B2 (en) 2005-12-07 2013-03-05 Agc Glass Europe Sound-generating glazing
WO2007065909A1 (fr) * 2005-12-07 2007-06-14 Agc Flat Glass Europe Sa Vitrage generateur de sons
TWI384890B (zh) * 2008-11-05 2013-02-01 Univ Nat Chiao Tung 微型揚聲器性能評估方法及系統
EP2450759B1 (fr) * 2010-11-09 2020-08-12 Montres Breguet SA Antichoc magnétique
CN108337621B (zh) * 2018-02-26 2024-01-02 浙江中科电声研发中心 扬声器振动部件材料粘弹性测量方法及系统
KR20220128354A (ko) * 2020-01-17 2022-09-20 썬전 샥 컴퍼니 리미티드 마이크로폰 및 그 마이크로폰을 구비하는 전자 디바이스

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992003024A1 (fr) 1990-08-04 1992-02-20 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Haut-parleur sous forme de panneau
UA51671C2 (uk) * 1995-09-02 2002-12-16 Нью Транзд'Юсез Лімітед Акустичний пристрій
GB9806994D0 (en) * 1998-04-02 1998-06-03 New Transducers Ltd Acoustic device
DE19757098C2 (de) * 1997-12-20 2003-01-09 Harman Audio Electronic Sys Aufhängung für Schallwiedergabeanordnungen nach dem Biegewellenprinzip
DE19821855A1 (de) 1998-05-15 1999-11-18 Nokia Deutschland Gmbh Plattenlautsprecher
AU5049199A (en) * 1998-07-29 2000-02-21 New Transducers Limited Loudspeaker drive unit having a resonant panel-form member

Also Published As

Publication number Publication date
WO2002013575A1 (fr) 2002-02-14
EP1305976A1 (fr) 2003-05-02
TW530518B (en) 2003-05-01
GB0018996D0 (en) 2000-09-20
JP2004506360A (ja) 2004-02-26
CN1470148A (zh) 2004-01-21
AU2001275706A1 (en) 2002-02-18

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