BR9913391A - Panel-shaped acoustic device using strip wave modes - Google Patents

Panel-shaped acoustic device using strip wave modes

Info

Publication number
BR9913391A
BR9913391A BR9913391-1A BR9913391A BR9913391A BR 9913391 A BR9913391 A BR 9913391A BR 9913391 A BR9913391 A BR 9913391A BR 9913391 A BR9913391 A BR 9913391A
Authority
BR
Brazil
Prior art keywords
panel
acoustic
waves
bandwidth
acoustic device
Prior art date
Application number
BR9913391-1A
Other languages
Portuguese (pt)
Inventor
Henry Azima
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 BR9913391A publication Critical patent/BR9913391A/en

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)

Abstract

Patente de Invenção: <B>''APARELHO ACúSTICO EM FORMA DE PAINEL QUE UTILIZA MODOS DE ONDAS DE FAIXA''<D>. Trata-se de um membro acústico em forma de painel capaz de suportar vibração de onda de faixa dotado de uma velocidade de onda de faixa variada na região de coincidência para proporcionar uma faixa de freq³ências de coincidência, para fazer com que a conjugação acústica das ondas de faixa no painel ocorra sobre uma faixa ampla de ângulos ou para tornar a conjugação mais uniforme. O membro pode ser incorporado em um alto-falante dotado de um membro de painel (1) e um excitador (3) fixado ao membro de painel para excitar as ondas de faixa no alto-falante para promover uma saída acústica.Invention Patent: <B> '' ACOUSTIC APPLIANCE IN PANEL FORM THAT USES TRACK WAVES MODES '' <D>. It is a panel-shaped acoustic member capable of withstanding bandwidth vibration with varying bandwidth velocity in the coincidence region to provide a coincidence frequency range, to make the acoustic conjugation of the waves range of the panel occurs over a wide range of angles or to make the conjugation more uniform. The member can be incorporated in a loudspeaker provided with a panel member (1) and an exciter (3) attached to the panel member to excite the bandwidth waves in the speaker to promote an acoustic output.

BR9913391-1A 1998-09-02 1999-09-01 Panel-shaped acoustic device using strip wave modes BR9913391A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
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
BR9913391A true BR9913391A (en) 2001-05-22

Family

ID=10838108

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9913391-1A BR9913391A (en) 1998-09-02 1999-09-01 Panel-shaped acoustic device using strip wave modes

Country Status (27)

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

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002060218A1 (en) * 2001-01-26 2002-08-01 Harman Audio Electronic Systems Gmbh Flat-panel loudspeaker
GB0007025D0 (en) * 2000-03-23 2000-05-10 New Transducers Ltd Loudspeakers
DE10025460B4 (en) * 2000-05-23 2004-03-18 Harman Audio Electronic Systems Gmbh tweeter
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 (en) * 2002-06-20 2004-04-13 Covial Device Ab Method and apparatus for sensing and indicating acoustic emission
JP2005236352A (en) * 2004-02-17 2005-09-02 Authentic Ltd Panel type speaker for display device
US7916878B2 (en) 2004-04-16 2011-03-29 New Transducers Limited Acoustic device and method of making acoustic device
DE102004028664A1 (en) * 2004-06-12 2006-01-19 Puren Gmbh Vibration body of a speaker system
GB0414082D0 (en) * 2004-06-24 2004-07-28 New Transducers Ltd Bending wave devices
DE102004061314A1 (en) * 2004-12-20 2006-07-06 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Loudspeaker transmitter and method of making a loudspeaker diaphragm
ITMI20051106A1 (en) * 2005-06-13 2006-12-14 Enrico Ciresa S R L SOUND PANEL FOR THE DIFFUSION OF SOUNDS AND MUSIC AND ITS PROCESS OF MANUFACTURING.
JP4779526B2 (en) * 2005-09-15 2011-09-28 日本電気株式会社 Panel speaker
CN101310561B (en) 2005-11-14 2012-04-11 Nxp股份有限公司 Asymmetrical moving systems 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 (en) * 2010-09-10 2014-07-09 株式会社村田製作所 Vibration device
JP2012119882A (en) * 2010-11-30 2012-06-21 Murata Mfg Co Ltd Vibration device
DE102013010654A1 (en) 2013-06-26 2014-12-31 Tobias Weiss Bending wave loudspeaker
DE102014012327B3 (en) 2014-08-20 2015-12-03 Helge Bots Soundboard for improving the sound characteristics of conventional loudspeakers
GB2539029B (en) * 2015-06-04 2017-06-07 Amina Tech Ltd Distributed mode loudspeaker damping oscillations within exciter feet
DE102015217778B4 (en) * 2015-09-17 2019-05-29 Robert Bosch Gmbh Acoustic sensor with a membrane and an electroacoustic transducer
GB2564061B (en) * 2016-06-27 2020-12-16 Amina Tech Limited Speaker panel
GB2551723B (en) * 2016-06-27 2018-11-28 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 (en) * 2018-03-19 2019-09-19 HELLA GmbH & Co. KGaA Sensor device for detecting sound, in particular for detecting structure-borne noise on a vehicle
GB2586959B (en) * 2019-08-08 2021-10-13 Amina Tech Limited Distributed mode loudspeaker
CN112584288B (en) * 2020-12-09 2023-03-14 青岛海信激光显示股份有限公司 Sound production board and projection screen
WO2022121590A1 (en) * 2020-12-09 2022-06-16 青岛海信激光显示股份有限公司 Sound generation board and projection screen
KR20230004191A (en) * 2021-06-30 2023-01-06 엘지디스플레이 주식회사 Sound apparatus and sound system comprising the same
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 (en) * 1995-09-02 2002-12-16 Нью Транзд'Юсез Лімітед Acoustic device
GB9704486D0 (en) * 1997-03-04 1997-04-23 New Transducers Ltd Acoustic devices etc

Also Published As

Publication number Publication date
PL346418A1 (en) 2002-02-11
PE20001147A1 (en) 2000-11-06
TW465252B (en) 2001-11-21
HK1034407A1 (en) 2001-10-19
EA200100303A1 (en) 2001-08-27
YU17201A (en) 2003-07-07
AU5524299A (en) 2000-03-27
AR020361A1 (en) 2002-05-08
SK2842001A3 (en) 2001-09-11
ID28655A (en) 2001-06-21
GB9818959D0 (en) 1998-10-21
HUP0103191A2 (en) 2001-12-28
UY25689A1 (en) 1999-11-17
CA2342764A1 (en) 2000-03-16
ZA200100759B (en) 2001-08-27
WO2000015000A1 (en) 2000-03-16
BG105261A (en) 2001-08-31
ATE260534T1 (en) 2004-03-15
JP2002524994A (en) 2002-08-06
TR200100682T2 (en) 2001-10-22
KR20010074943A (en) 2001-08-09
EP1110426B1 (en) 2004-02-25
DE69915083T2 (en) 2004-10-14
EP1110426A1 (en) 2001-06-27
NO20011080L (en) 2001-05-02
IL141634A0 (en) 2002-03-10
CN1317220A (en) 2001-10-10
DE69915083D1 (en) 2004-04-01
CN1157998C (en) 2004-07-14
EA002629B1 (en) 2002-08-29
NO20011080D0 (en) 2001-03-02

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]