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BR9808169A - Acoustic device - Google Patents

Acoustic device

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
Portuguese (pt)
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/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
    • 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)
  • Transducers For Ultrasonic Waves (AREA)
  • Sink And Installation For Waste Water (AREA)
  • Surgical Instruments (AREA)
  • Seal Device For Vehicle (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (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.Invention Patent: <B> "ACOUSTIC DEVICE" <D>. Acoustic devices have elements that extend transversely to the thickness and capable of sustaining bending waves that cause an acoustic action as a result of the spatial distribution of resonant modes of a natural bending wave vibration according to the required acoustic action that can be obtained from said element by a desired operating acoustic frequency range. The spatial distribution of stiffness including a variation (s) is used to obtain desired locations for bending wave transducers and / or a good acoustic response modem action from inherently unfavorable elements. Elements with a piston action drive and bending wave excitation combined in centers of mass and geometry are possible.

BR9808169-1A 1997-03-04 1998-02-27 Acoustic device BR9808169A (en)

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 (en) 2000-05-16

Family

ID=10808687

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9808169-1A BR9808169A (en) 1997-03-04 1998-02-27 Acoustic device

Country Status (29)

Country Link
EP (2) EP0965245B1 (en)
JP (1) JP2001513967A (en)
KR (1) KR20000075889A (en)
CN (1) CN1157999C (en)
AR (1) AR011920A1 (en)
AT (1) ATE231677T1 (en)
AU (1) AU735051B2 (en)
BG (1) BG103669A (en)
BR (1) BR9808169A (en)
CA (1) CA2283381A1 (en)
CZ (1) CZ310299A3 (en)
DE (1) DE69810905T2 (en)
EA (1) EA002480B1 (en)
EE (1) EE9900386A (en)
ES (1) ES2191925T3 (en)
GB (1) GB9704486D0 (en)
GE (1) GEP20022748B (en)
HU (1) HUP0002652A3 (en)
ID (1) ID20143A (en)
IL (1) IL131485A0 (en)
NO (1) NO994288D0 (en)
NZ (1) NZ336943A (en)
PL (1) PL335366A1 (en)
SK (1) SK119499A3 (en)
TR (1) TR199902177T2 (en)
TW (1) TW462199B (en)
WO (1) WO1998039947A1 (en)
YU (1) YU39599A (en)
ZA (1) ZA981662B (en)

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GB9806994D0 (en) * 1998-04-02 1998-06-03 New Transducers Ltd Acoustic device
GB9818959D0 (en) * 1998-09-02 1998-10-21 New Transducers Ltd Panelform loudspeaker
AU756783B2 (en) * 1998-06-22 2003-01-23 Slab Technology Limited Loudspeakers
GB2360665B (en) * 1998-06-22 2003-01-15 Slab Technology Ltd Loudspeakers
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
US7120263B2 (en) 2001-03-23 2006-10-10 New Transducers Limited Bending wave acoustic radiator
GB2386790B (en) * 2001-03-23 2004-08-18 New Transducers Ltd 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
CA2553744A1 (en) * 2003-01-22 2004-08-05 Shelley Katz Apparatus and method for producing sound
WO2006011604A1 (en) * 2004-07-30 2006-02-02 Matsushita Electric Industrial Co., Ltd. Loudspeaker system, mobile terminal device, an electronic device
US10158337B2 (en) 2004-08-10 2018-12-18 Bongiovi Acoustics Llc System and method for digital signal processing
US10848118B2 (en) 2004-08-10 2020-11-24 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 (en) * 2005-09-15 2011-09-28 日本電気株式会社 Panel speaker
US10069471B2 (en) 2006-02-07 2018-09-04 Bongiovi Acoustics Llc System and method for digital signal processing
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
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
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
JP4793018B2 (en) * 2006-02-20 2011-10-12 パナソニック株式会社 Diaphragm and speaker using it
KR100883241B1 (en) * 2007-01-31 2009-02-10 욘 싱 인더스트리얼 컴퍼니., 리미티드. Acoustics with full-band monolithic acoustic membranes following the physical properties of sound
DE102007041850A1 (en) * 2007-09-03 2009-03-05 Robert Bosch Gmbh Ultrasonic sensor with a carrier element and a membrane, wherein the membrane is embedded in the carrier element
GB0811015D0 (en) * 2008-06-17 2008-07-23 Deben Acoustics Improved acoustic device
WO2012025783A1 (en) 2010-08-23 2012-03-01 Nokia Corporation Apparatus and method for providing haptic and audio feedback in a touch sensitive user interface.
EP2461220B1 (en) * 2010-12-02 2019-11-06 Montres Breguet SA Acoustic membrane for a musical box or an alarm watch
US9264004B2 (en) 2013-06-12 2016-02-16 Bongiovi Acoustics Llc System and method for narrow bandwidth digital signal processing
US9883318B2 (en) 2013-06-12 2018-01-30 Bongiovi Acoustics Llc System and method for stereo field enhancement in two-channel audio systems
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 (en) * 2015-09-17 2019-05-29 Robert Bosch Gmbh Acoustic sensor with a membrane and an electroacoustic transducer
US9906867B2 (en) 2015-11-16 2018-02-27 Bongiovi Acoustics Llc Surface acoustic transducer
US9621994B1 (en) 2015-11-16 2017-04-11 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 (en) * 2016-07-18 2022-05-18 VEGA Grieshaber KG Vibrating level switch and method for producing a vibrating level switch
GB2568282B (en) 2017-11-10 2020-11-25 Amina Tech Limited Flat panel loudspeaker
CN112236812A (en) 2018-04-11 2021-01-15 邦吉欧维声学有限公司 Audio Enhanced Hearing Protection System
US10959035B2 (en) 2018-08-02 2021-03-23 Bongiovi Acoustics Llc System, method, and apparatus for generating and digitally processing a head related audio transfer function
CN117292611A (en) * 2019-06-17 2023-12-26 海信视像科技股份有限公司 Display device and soundable 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
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
CN113642202A (en) * 2021-06-29 2021-11-12 东风汽车集团股份有限公司 Variable thickness thin plate

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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 (en) * 1988-06-10 1989-12-15 Minebea Co Ltd Diaphragm for speaker
ATE117155T1 (en) * 1990-08-04 1995-01-15 Secr Defence Brit PANEL-SHAPED SPEAKER.
UA51671C2 (en) * 1995-09-02 2002-12-16 Нью Транзд'Юсез Лімітед Acoustic device

Also Published As

Publication number Publication date
ATE231677T1 (en) 2003-02-15
ID20143A (en) 1998-10-08
ES2191925T3 (en) 2003-09-16
BG103669A (en) 2000-03-31
NZ336943A (en) 2001-02-23
EP1133212A3 (en) 2006-01-11
AR011920A1 (en) 2000-09-13
YU39599A (en) 2001-12-26
EE9900386A (en) 2000-04-17
EA199900793A1 (en) 2000-04-24
EP0965245B1 (en) 2003-01-22
EP1133212A2 (en) 2001-09-12
DE69810905D1 (en) 2003-02-27
PL335366A1 (en) 2000-04-25
HK1022398A1 (en) 2000-08-04
EA002480B1 (en) 2002-06-27
SK119499A3 (en) 2000-08-14
JP2001513967A (en) 2001-09-04
KR20000075889A (en) 2000-12-26
CZ310299A3 (en) 1999-12-15
HUP0002652A3 (en) 2001-11-28
AU6305398A (en) 1998-09-22
CA2283381A1 (en) 1998-09-11
TR199902177T2 (en) 2000-01-21
GEP20022748B (en) 2002-07-25
CN1249892A (en) 2000-04-05
DE69810905T2 (en) 2003-12-24
NO994288L (en) 1999-09-03
AU735051B2 (en) 2001-06-28
GB9704486D0 (en) 1997-04-23
ZA981662B (en) 1998-09-03
CN1157999C (en) 2004-07-14
HUP0002652A2 (en) 2000-12-28
TW462199B (en) 2001-11-01
NO994288D0 (en) 1999-09-03
WO1998039947A1 (en) 1998-09-11
EP0965245A1 (en) 1999-12-22
IL131485A0 (en) 2001-01-28

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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.