AU5524299A - Panel form acoustic apparatus using bending waves modes - Google Patents

Panel form acoustic apparatus using bending waves modes Download PDF

Info

Publication number
AU5524299A
AU5524299A AU55242/99A AU5524299A AU5524299A AU 5524299 A AU5524299 A AU 5524299A AU 55242/99 A AU55242/99 A AU 55242/99A AU 5524299 A AU5524299 A AU 5524299A AU 5524299 A AU5524299 A AU 5524299A
Authority
AU
Australia
Prior art keywords
panel
coincidence
bending stiffness
bending
exciter
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.)
Abandoned
Application number
AU55242/99A
Other languages
English (en)
Inventor
Henry Azima
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
Application filed by New Transducers Ltd filed Critical New Transducers Ltd
Publication of AU5524299A publication Critical patent/AU5524299A/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
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • 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
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Building Environments (AREA)
AU55242/99A 1998-09-02 1999-09-01 Panel form acoustic apparatus using bending waves modes Abandoned AU5524299A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9818959 1998-09-02
GBGB9818959.0A GB9818959D0 (en) 1998-09-02 1998-09-02 Panelform loudspeaker
PCT/GB1999/002724 WO2000015000A1 (en) 1998-09-02 1999-09-01 Panel form acoustic apparatus using bending waves modes

Publications (1)

Publication Number Publication Date
AU5524299A true AU5524299A (en) 2000-03-27

Family

ID=10838108

Family Applications (1)

Application Number Title Priority Date Filing Date
AU55242/99A Abandoned AU5524299A (en) 1998-09-02 1999-09-01 Panel form acoustic apparatus using bending waves modes

Country Status (27)

Country Link
EP (1) EP1110426B1 (id)
JP (1) JP2002524994A (id)
KR (1) KR20010074943A (id)
CN (1) CN1157998C (id)
AR (1) AR020361A1 (id)
AT (1) ATE260534T1 (id)
AU (1) AU5524299A (id)
BG (1) BG105261A (id)
BR (1) BR9913391A (id)
CA (1) CA2342764A1 (id)
DE (1) DE69915083T2 (id)
EA (1) EA002629B1 (id)
GB (1) GB9818959D0 (id)
HK (1) HK1034407A1 (id)
HU (1) HUP0103191A2 (id)
ID (1) ID28655A (id)
IL (1) IL141634A0 (id)
NO (1) NO20011080L (id)
PE (1) PE20001147A1 (id)
PL (1) PL346418A1 (id)
SK (1) SK2842001A3 (id)
TR (1) TR200100682T2 (id)
TW (1) TW465252B (id)
UY (1) UY25689A1 (id)
WO (1) WO2000015000A1 (id)
YU (1) YU17201A (id)
ZA (1) ZA200100759B (id)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0007025D0 (en) * 2000-03-23 2000-05-10 New Transducers Ltd Loudspeakers
DE10025460B4 (de) * 2000-05-23 2004-03-18 Harman Audio Electronic Systems Gmbh Hochtonlautsprecher
EP1264511A1 (de) * 2001-01-26 2002-12-11 Harman Audio Electronic Systems GmbH Plattenlautsprecher
US7120263B2 (en) 2001-03-23 2006-10-10 New Transducers Limited Bending wave acoustic radiator
US7062051B2 (en) 2001-08-17 2006-06-13 New Transducers Limited Acoustic device
SE523321C2 (sv) * 2002-06-20 2004-04-13 Covial Device Ab Sätt och anordning för avkänning och indikering av akustisk emission
JP2005236352A (ja) * 2004-02-17 2005-09-02 Authentic Ltd 表示装置用パネル型スピーカ
CA2560659A1 (en) 2004-04-16 2005-10-27 New Transducers Limited Acoustic device & method of making acoustic device
DE102004028664A1 (de) * 2004-06-12 2006-01-19 Puren Gmbh Schwingungskörper eines Lautsprechersystems
GB0414082D0 (en) * 2004-06-24 2004-07-28 New Transducers Ltd Bending wave devices
DE102004061314A1 (de) 2004-12-20 2006-07-06 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Lautsprechermemebran und Verfahren zum Herstellen einer Lautsprechermembran
ITMI20051106A1 (it) * 2005-06-13 2006-12-14 Enrico Ciresa S R L Pannello sonoro per la diffusione di suoni e musica e relativo procedimento di fabbricazione.
JP4779526B2 (ja) * 2005-09-15 2011-09-28 日本電気株式会社 パネルスピーカ
EP1952667A1 (en) 2005-11-14 2008-08-06 Nxp B.V. Asymmetrical moving system for a piezoelectric speaker and asymmetrical speaker
GB0601076D0 (en) 2006-01-19 2006-03-01 New Transducers Ltd Acoustic device and method of making acoustic device
JP5541022B2 (ja) * 2010-09-10 2014-07-09 株式会社村田製作所 振動装置
JP2012119882A (ja) * 2010-11-30 2012-06-21 Murata Mfg Co Ltd 振動装置
DE102013010654A1 (de) 2013-06-26 2014-12-31 Tobias Weiss Biegewellenlautsprecher
DE102014012327B3 (de) 2014-08-20 2015-12-03 Helge Bots Resonanzplatte zur Verbesserung der Klangcharakteristik herkömmlicher Lautsprecherboxen
GB2539029B (en) * 2015-06-04 2017-06-07 Amina Tech Ltd Distributed mode loudspeaker damping oscillations within exciter feet
DE102015217778B4 (de) * 2015-09-17 2019-05-29 Robert Bosch Gmbh Akustischer Sensor mit einer Membran und einem elektroakustischen Wandler
GB2551723B (en) 2016-06-27 2018-11-28 Amina Tech Limited Speaker Panel
GB2564061B (en) * 2016-06-27 2020-12-16 Amina Tech Limited Speaker panel
US10264348B1 (en) * 2017-12-29 2019-04-16 Nvf Tech Ltd Multi-resonant coupled system for flat panel actuation
DE102018106333A1 (de) * 2018-03-19 2019-09-19 HELLA GmbH & Co. KGaA Sensorvorrichtung zur Erfassung von Schall, insbesondere zur Erfassung von Körperschall an einem Fahrzeug
GB2586959B (en) * 2019-08-08 2021-10-13 Amina Tech Limited Distributed mode loudspeaker
WO2022121590A1 (zh) * 2020-12-09 2022-06-16 青岛海信激光显示股份有限公司 发声板及投影屏幕
CN112584288B (zh) * 2020-12-09 2023-03-14 青岛海信激光显示股份有限公司 发声板及投影屏幕
KR20230004191A (ko) * 2021-06-30 2023-01-06 엘지디스플레이 주식회사 음향 장치와 이를 포함하는 음향 시스템
WO2023247017A1 (en) * 2022-06-21 2023-12-28 Huawei Technologies Co., Ltd. Vibratory system comprising a vibratory panel with an acoustic black hole structure

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3247925A (en) * 1962-03-08 1966-04-26 Lord Corp Loudspeaker
WO1992003024A1 (en) * 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 Panel-form loudspeaker
US5425107A (en) * 1992-04-09 1995-06-13 Bertagni Electronic Sound Transducers, International Corporation Planar-type loudspeaker with dual density diaphragm
UA51671C2 (uk) * 1995-09-02 2002-12-16 Нью Транзд'Юсез Лімітед Акустичний пристрій
GB9704486D0 (en) * 1997-03-04 1997-04-23 New Transducers Ltd Acoustic devices etc

Also Published As

Publication number Publication date
HK1034407A1 (en) 2001-10-19
JP2002524994A (ja) 2002-08-06
HUP0103191A2 (hu) 2001-12-28
PL346418A1 (en) 2002-02-11
IL141634A0 (en) 2002-03-10
SK2842001A3 (en) 2001-09-11
EP1110426A1 (en) 2001-06-27
PE20001147A1 (es) 2000-11-06
ID28655A (id) 2001-06-21
AR020361A1 (es) 2002-05-08
EA200100303A1 (ru) 2001-08-27
NO20011080D0 (no) 2001-03-02
ZA200100759B (en) 2001-08-27
EP1110426B1 (en) 2004-02-25
TW465252B (en) 2001-11-21
CN1157998C (zh) 2004-07-14
BR9913391A (pt) 2001-05-22
ATE260534T1 (de) 2004-03-15
TR200100682T2 (tr) 2001-10-22
DE69915083D1 (de) 2004-04-01
EA002629B1 (ru) 2002-08-29
GB9818959D0 (en) 1998-10-21
NO20011080L (no) 2001-05-02
DE69915083T2 (de) 2004-10-14
WO2000015000A1 (en) 2000-03-16
UY25689A1 (es) 1999-11-17
CN1317220A (zh) 2001-10-10
CA2342764A1 (en) 2000-03-16
YU17201A (sh) 2003-07-07
BG105261A (bg) 2001-08-31
KR20010074943A (ko) 2001-08-09

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Legal Events

Date Code Title Description
MK5 Application lapsed section 142(2)(e) - patent request and compl. specification not accepted