DE69915083D1 - Plattenförmige akustistische vorrichtung unter verwendung von biegewellenmoden - Google Patents

Plattenförmige akustistische vorrichtung unter verwendung von biegewellenmoden

Info

Publication number
DE69915083D1
DE69915083D1 DE69915083T DE69915083T DE69915083D1 DE 69915083 D1 DE69915083 D1 DE 69915083D1 DE 69915083 T DE69915083 T DE 69915083T DE 69915083 T DE69915083 T DE 69915083T DE 69915083 D1 DE69915083 D1 DE 69915083D1
Authority
DE
Germany
Prior art keywords
acoustic device
wave modes
bending wave
plate acoustic
plate
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.)
Expired - Fee Related
Application number
DE69915083T
Other languages
English (en)
Other versions
DE69915083T2 (de
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 DE69915083D1 publication Critical patent/DE69915083D1/de
Application granted granted Critical
Publication of DE69915083T2 publication Critical patent/DE69915083T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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)
DE69915083T 1998-09-02 1999-09-01 Plattenförmige akustistische vorrichtung unter verwendung von biegewellenmoden Expired - Fee Related DE69915083T2 (de)

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 (2)

Publication Number Publication Date
DE69915083D1 true DE69915083D1 (de) 2004-04-01
DE69915083T2 DE69915083T2 (de) 2004-10-14

Family

ID=10838108

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69915083T Expired - Fee Related DE69915083T2 (de) 1998-09-02 1999-09-01 Plattenförmige akustistische vorrichtung unter verwendung von biegewellenmoden

Country Status (27)

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

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 (de) 2005-11-14 2008-08-06 Nxp B.V. Asymmetrisches bewegungssystem für einen piezoelektrischen sprecher und asymmetrischer sprecher
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
AU5524299A (en) 2000-03-27
HUP0103191A2 (hu) 2001-12-28
PL346418A1 (en) 2002-02-11
IL141634A0 (en) 2002-03-10
SK2842001A3 (en) 2001-09-11
EP1110426A1 (de) 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 (de) 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
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

Similar Documents

Publication Publication Date Title
DE69915083D1 (de) Plattenförmige akustistische vorrichtung unter verwendung von biegewellenmoden
DE69926484D1 (de) Akustische vorrichtung mit plattenelement nach dem biegewellenprinzip
DE19882575T1 (de) Ultraschallbilderzeugung unter Verwendung der Fundamentalfrequenz
DE69839134D1 (de) Aktive akustische Vorrichtung
DE69942909D1 (de) Laserkammer zur zerstreuung von druckwellen
ATE294492T1 (de) Akustische vorrichtung nach dem biegewellenprinzip
DE69832782D1 (de) Vorrichtung zur pulswellenuntersuchung
DE19880830T1 (de) Ultraschallwellengerät
EP0996311A4 (de) Flacher elektroakustischer wandler
AU3568099A (en) Surface acoustic wave harmonic analysis
ATE231677T1 (de) Akustisches gerät
DE69814205D1 (de) Akustische Oberflächenwellenanordnung
DE69516106D1 (de) Akustische Oberflächenwellenanordnung
DE69924225D1 (de) Akustische Oberflächenwellenanordnung
DE69926672D1 (de) Akustische Oberflächenwellenanordnung
FR2770899B1 (fr) Microgyrometre vibrant
DE69730789D1 (de) Piezoelektrischer elektroakustischer Wandler
DE69841878D1 (de) Akustische Oberflächenwellenanordnung
NL1009560A1 (nl) Oppervlaktegeluidsgolfinrichting.
DE69614463D1 (de) Akustische Oberflächenwellenanordnung
DE69734753D1 (de) Akustische Oberflächenwellenvorrichtung
DE69611771D1 (de) Akustische Oberflächenwellenanordnung
DE59907127D1 (de) Oberflächenwellensensor
DE69842149D1 (de) Akustische Oberflächenwellenanordnung
FI982156A0 (fi) Akustisen muuntimen alustan kiinnitysmenetelmä

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee