AU2002238709A8 - Bending wave acoustic radiator - Google Patents

Bending wave acoustic radiator

Info

Publication number
AU2002238709A8
AU2002238709A8 AU2002238709A AU2002238709A AU2002238709A8 AU 2002238709 A8 AU2002238709 A8 AU 2002238709A8 AU 2002238709 A AU2002238709 A AU 2002238709A AU 2002238709 A AU2002238709 A AU 2002238709A AU 2002238709 A8 AU2002238709 A8 AU 2002238709A8
Authority
AU
Australia
Prior art keywords
bending wave
acoustic radiator
wave acoustic
radiator
bending
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.)
Withdrawn
Application number
AU2002238709A
Other versions
AU2002238709A1 (en
Inventor
Graham Bank
Julian Fordham
Martin Colloms
Henry Azima
Charles Bream
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.)
NVF Tech Ltd
Original Assignee
New Transducers Ltd
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
Priority claimed from GB0107314A external-priority patent/GB0107314D0/en
Priority claimed from GB0130469A external-priority patent/GB0130469D0/en
Application filed by New Transducers Ltd filed Critical New Transducers Ltd
Publication of AU2002238709A1 publication Critical patent/AU2002238709A1/en
Publication of AU2002238709A8 publication Critical patent/AU2002238709A8/en
Abandoned 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
    • 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
    • H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/029—Diaphragms comprising fibres

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Building Environments (AREA)
AU2002238709A 2001-03-23 2002-03-13 Bending wave acoustic radiator Abandoned AU2002238709A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB0107314A GB0107314D0 (en) 2001-03-23 2001-03-23 Bending wave acoustic radiator
GB0107314.7 2001-03-23
GB0130469A GB0130469D0 (en) 2001-12-20 2001-12-20 Bending wave acoustic radiator
GB0130469.0 2001-12-20
PCT/GB2002/000993 WO2002078391A2 (en) 2001-03-23 2002-03-13 Bending wave acoustic radiator

Publications (2)

Publication Number Publication Date
AU2002238709A1 AU2002238709A1 (en) 2002-10-08
AU2002238709A8 true AU2002238709A8 (en) 2008-01-03

Family

ID=26245888

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2002238709A Abandoned AU2002238709A1 (en) 2001-03-23 2002-03-13 Bending wave acoustic radiator

Country Status (6)

Country Link
CN (1) CN100551133C (en)
AU (1) AU2002238709A1 (en)
GB (1) GB2386790B (en)
HK (1) HK1055655A1 (en)
TW (1) TW527846B (en)
WO (1) WO2002078391A2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5085318B2 (en) 2004-04-16 2012-11-28 ニュー トランスデューサーズ リミテッド Acoustic device and acoustic device manufacturing method
CN1882198B (en) * 2006-04-30 2012-06-13 南京大学 Method for designing sound pressure frequency response curve of drive location optimization bending vibration type thin plate loudspeaker
EP1988740A1 (en) * 2007-05-03 2008-11-05 Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO Sound generator
DE102011015747A1 (en) * 2011-03-31 2012-10-04 Airbus Operations Gmbh Active acoustic element e.g. flat speaker, for use in cabin lining of e.g. aircraft, has plate-like element producing sound waves, partially made of foamed glass ceramic material and exhibiting three-dimensional surface structure
US9628917B2 (en) * 2014-07-23 2017-04-18 Bose Corporation Sound producing system
US9660596B2 (en) * 2015-01-23 2017-05-23 Tectonic Audio Labs Audio transducer stabilization system and method
GB2539029B (en) * 2015-06-04 2017-06-07 Amina Tech Ltd Distributed mode loudspeaker damping oscillations within exciter feet
GB2586959B (en) * 2019-08-08 2021-10-13 Amina Tech Limited Distributed mode loudspeaker
KR20220091082A (en) * 2020-12-23 2022-06-30 엘지디스플레이 주식회사 Sound generating module and vehicle comprising the same
GB202217215D0 (en) * 2022-11-17 2023-01-04 Amina Tech Limited distributed mode flat panel loudspeaker with overhanging monolithic panel and method of installation thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9704486D0 (en) * 1997-03-04 1997-04-23 New Transducers Ltd Acoustic devices etc
GB9822246D0 (en) * 1998-10-13 1998-12-09 New Transducers Ltd Loudspeakers
GB9911271D0 (en) * 1999-05-15 1999-07-14 New Transducers Ltd Acoustic device
GB9913465D0 (en) * 1999-06-10 1999-08-11 New Transducers Ltd Acoustic device

Also Published As

Publication number Publication date
TW527846B (en) 2003-04-11
GB2386790A (en) 2003-09-24
WO2002078391A3 (en) 2007-10-25
AU2002238709A1 (en) 2002-10-08
GB2386790B (en) 2004-08-18
CN100551133C (en) 2009-10-14
HK1055655A1 (en) 2004-01-16
GB0316845D0 (en) 2003-08-20
CN1625918A (en) 2005-06-08
WO2002078391A2 (en) 2002-10-03

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase