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BR9808169A - Dispositivo acústico - Google Patents

Dispositivo acústico

Info

Publication number
BR9808169A
BR9808169A BR9808169-1A BR9808169A BR9808169A BR 9808169 A BR9808169 A BR 9808169A BR 9808169 A BR9808169 A BR 9808169A BR 9808169 A BR9808169 A BR 9808169A
Authority
BR
Brazil
Prior art keywords
acoustic
action
elements
bending wave
spatial distribution
Prior art date
Application number
BR9808169-1A
Other languages
English (en)
Inventor
Henry Azima
Martin Colloms
Neil Harris
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 BR9808169A publication Critical patent/BR9808169A/pt

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
    • H04R7/10—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact
    • 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
    • H04R2440/00—Bending wave transducers covered by H04R, not provided for in its groups
    • H04R2440/07—Loudspeakers using bending wave resonance and pistonic motion to generate sound

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)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Surgical Instruments (AREA)
  • Seal Device For Vehicle (AREA)
  • Sink And Installation For Waste Water (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

Patente de Invenção: <B>"DISPOSITIVO ACúSTICO"<D>. Dispositivos acústicos têm elementos que se estendem transversalmente à espessura e capazes de sustentar ondas de flexão que causam uma ação acústica conseq³ente em razão da distribuição espacial de modos ressonantes de uma vibração de onda de flexão natural conforme a ação acústica requerida passível de ser obtida do referido elemento por uma faixa de freq³ência acústica operacional desejada. A distribuição espacial de rigidez incluindo uma variação(ões) é usada para que sejam obtidos locais desejados para transdutores de onda de flexão e/ou uma boa ação acústica de modem de resposta a partir de elementos inerentemente desfavoráveis. Elementos com um acionamento de ação de pistão e de excitação de onda de flexão combinados em centros de massa e de geometria são possíveis.
BR9808169-1A 1997-03-04 1998-02-27 Dispositivo acústico BR9808169A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9704486.1A GB9704486D0 (en) 1997-03-04 1997-03-04 Acoustic devices etc
PCT/GB1998/000621 WO1998039947A1 (en) 1997-03-04 1998-02-27 Acoustic device

Publications (1)

Publication Number Publication Date
BR9808169A true BR9808169A (pt) 2000-05-16

Family

ID=10808687

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9808169-1A BR9808169A (pt) 1997-03-04 1998-02-27 Dispositivo acústico

Country Status (29)

Country Link
EP (2) EP1133212A3 (pt)
JP (1) JP2001513967A (pt)
KR (1) KR20000075889A (pt)
CN (1) CN1157999C (pt)
AR (1) AR011920A1 (pt)
AT (1) ATE231677T1 (pt)
AU (1) AU735051B2 (pt)
BG (1) BG103669A (pt)
BR (1) BR9808169A (pt)
CA (1) CA2283381A1 (pt)
CZ (1) CZ310299A3 (pt)
DE (1) DE69810905T2 (pt)
EA (1) EA002480B1 (pt)
EE (1) EE9900386A (pt)
ES (1) ES2191925T3 (pt)
GB (1) GB9704486D0 (pt)
GE (1) GEP20022748B (pt)
HU (1) HUP0002652A3 (pt)
ID (1) ID20143A (pt)
IL (1) IL131485A0 (pt)
NO (1) NO994288D0 (pt)
NZ (1) NZ336943A (pt)
PL (1) PL335366A1 (pt)
SK (1) SK119499A3 (pt)
TR (1) TR199902177T2 (pt)
TW (1) TW462199B (pt)
WO (1) WO1998039947A1 (pt)
YU (1) YU39599A (pt)
ZA (1) ZA981662B (pt)

Families Citing this family (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9818959D0 (en) * 1998-09-02 1998-10-21 New Transducers Ltd Panelform loudspeaker
GB9806994D0 (en) * 1998-04-02 1998-06-03 New Transducers Ltd Acoustic device
GB2360665B (en) * 1998-06-22 2003-01-15 Slab Technology Ltd Loudspeakers
ES2251198T3 (es) * 1998-06-22 2006-04-16 Slab Technology Limited Altavoces.
GB9903044D0 (en) * 1999-02-11 1999-03-31 New Transducers Ltd Loudspeakers
GB0029098D0 (en) * 2000-11-30 2001-01-10 New Transducers Ltd Vibration transducer
US6839444B2 (en) 2000-11-30 2005-01-04 New Transducers Limited Loudspeakers
AU2002238709A1 (en) * 2001-03-23 2002-10-08 New Transducers Limited Bending wave acoustic radiator
US7120263B2 (en) 2001-03-23 2006-10-10 New Transducers Limited Bending wave acoustic radiator
US7002070B2 (en) 2001-06-22 2006-02-21 Shelley Katz Electronic piano
US7548854B2 (en) 2002-01-31 2009-06-16 Awi Licensing Company Architectural sound enhancement with pre-filtered masking sound
US7010143B2 (en) * 2002-08-22 2006-03-07 Tai-Yan Kam Rectangular panel-form loudspeaker and its radiating panel
AU2003202084A1 (en) * 2003-01-22 2004-08-13 Shelley Katz Apparatus and method for producing sound
WO2006011604A1 (ja) * 2004-07-30 2006-02-02 Matsushita Electric Industrial Co., Ltd. スピーカシステム、携帯端末装置および電子機器
US10848118B2 (en) 2004-08-10 2020-11-24 Bongiovi Acoustics Llc System and method for digital signal processing
US10158337B2 (en) 2004-08-10 2018-12-18 Bongiovi Acoustics Llc System and method for digital signal processing
US11431312B2 (en) 2004-08-10 2022-08-30 Bongiovi Acoustics Llc System and method for digital signal processing
US8284955B2 (en) 2006-02-07 2012-10-09 Bongiovi Acoustics Llc System and method for digital signal processing
JP4779526B2 (ja) * 2005-09-15 2011-09-28 日本電気株式会社 パネルスピーカ
US10701505B2 (en) 2006-02-07 2020-06-30 Bongiovi Acoustics Llc. System, method, and apparatus for generating and digitally processing a head related audio transfer function
US10069471B2 (en) 2006-02-07 2018-09-04 Bongiovi Acoustics Llc System and method for digital signal processing
US9615189B2 (en) 2014-08-08 2017-04-04 Bongiovi Acoustics Llc Artificial ear apparatus and associated methods for generating a head related audio transfer function
US10848867B2 (en) 2006-02-07 2020-11-24 Bongiovi Acoustics Llc System and method for digital signal processing
US11202161B2 (en) 2006-02-07 2021-12-14 Bongiovi Acoustics Llc System, method, and apparatus for generating and digitally processing a head related audio transfer function
JP4793018B2 (ja) * 2006-02-20 2011-10-12 パナソニック株式会社 振動板とそれを用いたスピーカ
KR100883241B1 (ko) * 2007-01-31 2009-02-10 욘 싱 인더스트리얼 컴퍼니., 리미티드. 음향의 물리적 특성을 따르는 전대역 단일체 음향막을 갖는 음향장치
DE102007041850A1 (de) * 2007-09-03 2009-03-05 Robert Bosch Gmbh Ultraschallsensor mit einem Trägerelement und einer Membran, wobei die Membran in das Trägerelement eingebettet ist
GB0811015D0 (en) * 2008-06-17 2008-07-23 Deben Acoustics Improved acoustic device
CN103154857B (zh) 2010-08-23 2019-03-15 诺基亚技术有限公司 用于在触摸感应的用户接口中提供触觉和音频反馈的装置和方法
CH704183A2 (fr) * 2010-12-02 2012-06-15 Montres Breguet Sa Membrane de rayonnement acoustique pour une boite a musique ou une montre a sonnerie.
US9883318B2 (en) 2013-06-12 2018-01-30 Bongiovi Acoustics Llc System and method for stereo field enhancement in two-channel audio systems
US9264004B2 (en) 2013-06-12 2016-02-16 Bongiovi Acoustics Llc System and method for narrow bandwidth digital signal processing
US9906858B2 (en) 2013-10-22 2018-02-27 Bongiovi Acoustics Llc System and method for digital signal processing
US9615813B2 (en) 2014-04-16 2017-04-11 Bongiovi Acoustics Llc. Device for wide-band auscultation
US10639000B2 (en) 2014-04-16 2020-05-05 Bongiovi Acoustics Llc Device for wide-band auscultation
US10820883B2 (en) 2014-04-16 2020-11-03 Bongiovi Acoustics Llc Noise reduction assembly for auscultation of a body
US9628917B2 (en) * 2014-07-23 2017-04-18 Bose Corporation Sound producing system
US9564146B2 (en) 2014-08-01 2017-02-07 Bongiovi Acoustics Llc System and method for digital signal processing in deep diving environment
US9638672B2 (en) 2015-03-06 2017-05-02 Bongiovi Acoustics Llc System and method for acquiring acoustic information from a resonating body
DE102015217778B4 (de) * 2015-09-17 2019-05-29 Robert Bosch Gmbh Akustischer Sensor mit einer Membran und einem elektroakustischen Wandler
US9621994B1 (en) 2015-11-16 2017-04-11 Bongiovi Acoustics Llc Surface acoustic transducer
WO2017087495A1 (en) 2015-11-16 2017-05-26 Bongiovi Acoustics Llc Surface acoustic 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
EP3273210B1 (de) * 2016-07-18 2022-05-18 VEGA Grieshaber KG Vibrationsgrenzstandsschalter und verfahren zur herstellung eines vibrationsgrenzstandsschalter
GB2568282B (en) 2017-11-10 2020-11-25 Amina Tech Limited Flat panel loudspeaker
US11211043B2 (en) 2018-04-11 2021-12-28 Bongiovi Acoustics Llc Audio enhanced hearing protection system
WO2020028833A1 (en) 2018-08-02 2020-02-06 Bongiovi Acoustics Llc System, method, and apparatus for generating and digitally processing a head related audio transfer function
CN117292611A (zh) * 2019-06-17 2023-12-26 海信视像科技股份有限公司 显示装置及可发声屏幕
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
CN113642202A (zh) * 2021-06-29 2021-11-12 东风汽车集团股份有限公司 一种变厚度薄板

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5568795A (en) * 1978-11-20 1980-05-23 Sony Corp Speaker
GB2074812B (en) * 1980-04-21 1984-01-04 Matsushita Electric Industrial Co Ltd Method of manufacturing a speaker diaphragm
JPH01311795A (ja) * 1988-06-10 1989-12-15 Minebea Co Ltd スピーカ用振動板
ATE117155T1 (de) * 1990-08-04 1995-01-15 Secr Defence Brit Paneelförmiger lautsprecher.
UA51671C2 (uk) * 1995-09-02 2002-12-16 Нью Транзд'Юсез Лімітед Акустичний пристрій

Also Published As

Publication number Publication date
ID20143A (id) 1998-10-08
NO994288L (no) 1999-09-03
EP1133212A3 (en) 2006-01-11
BG103669A (en) 2000-03-31
CZ310299A3 (cs) 1999-12-15
CN1157999C (zh) 2004-07-14
JP2001513967A (ja) 2001-09-04
DE69810905D1 (de) 2003-02-27
HK1022398A1 (en) 2000-08-04
EP0965245A1 (en) 1999-12-22
EP1133212A2 (en) 2001-09-12
ZA981662B (en) 1998-09-03
TR199902177T2 (xx) 2000-01-21
CN1249892A (zh) 2000-04-05
YU39599A (sh) 2001-12-26
CA2283381A1 (en) 1998-09-11
WO1998039947A1 (en) 1998-09-11
EA199900793A1 (ru) 2000-04-24
EE9900386A (et) 2000-04-17
HUP0002652A3 (en) 2001-11-28
DE69810905T2 (de) 2003-12-24
EA002480B1 (ru) 2002-06-27
NO994288D0 (no) 1999-09-03
GB9704486D0 (en) 1997-04-23
AU735051B2 (en) 2001-06-28
AR011920A1 (es) 2000-09-13
TW462199B (en) 2001-11-01
KR20000075889A (ko) 2000-12-26
PL335366A1 (en) 2000-04-25
GEP20022748B (en) 2002-07-25
ES2191925T3 (es) 2003-09-16
NZ336943A (en) 2001-02-23
IL131485A0 (en) 2001-01-28
EP0965245B1 (en) 2003-01-22
SK119499A3 (en) 2000-08-14
AU6305398A (en) 1998-09-22
HUP0002652A2 (hu) 2000-12-28
ATE231677T1 (de) 2003-02-15

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Legal Events

Date Code Title Description
B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1891 DE 03/04/2007.