CA2326161A1 - Dispositif acoustique ayant recours a l'action d'une onde de flexion - Google Patents

Dispositif acoustique ayant recours a l'action d'une onde de flexion Download PDF

Info

Publication number
CA2326161A1
CA2326161A1 CA002326161A CA2326161A CA2326161A1 CA 2326161 A1 CA2326161 A1 CA 2326161A1 CA 002326161 A CA002326161 A CA 002326161A CA 2326161 A CA2326161 A CA 2326161A CA 2326161 A1 CA2326161 A1 CA 2326161A1
Authority
CA
Canada
Prior art keywords
acoustic device
acoustic
area
bending
panel
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
CA002326161A
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
Individual
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 Individual filed Critical Individual
Publication of CA2326161A1 publication Critical patent/CA2326161A1/fr
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
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H04R7/22—Clamping rim of diaphragm or cone against seating

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Toys (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

Ce dispositif acoustique comporte un élément reposant sur l'action d'une onde de flexion avec répartition avantageuse des modes résonnants de celle-ci. La région active du point de vue acoustique de cet élément est, au moins en partie, encadrée par des moyens de nature sensiblement restrictive relativement à la vibration de l'onde de flexion. Le dispositif est susceptible de fonctionner, le cas échéant, en dessous ou au-dessus de la fréquence de coïncidence et ce, pour un dispositif acoustique actif dont les structures de transduction d'onde de flexion sont avantageusement situées, cet emplacement étant déterminé en tenant compte de l'encadrement.
CA002326161A 1998-04-02 1999-03-30 Dispositif acoustique ayant recours a l'action d'une onde de flexion Abandoned CA2326161A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB9806994.1A GB9806994D0 (en) 1998-04-02 1998-04-02 Acoustic device
GB9806994.1 1998-04-02
PCT/GB1999/000848 WO1999052324A1 (fr) 1998-04-02 1999-03-30 Dispositif acoustique ayant recours a l'action d'une onde de flexion

Publications (1)

Publication Number Publication Date
CA2326161A1 true CA2326161A1 (fr) 1999-10-14

Family

ID=10829678

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002326161A Abandoned CA2326161A1 (fr) 1998-04-02 1999-03-30 Dispositif acoustique ayant recours a l'action d'une onde de flexion

Country Status (27)

Country Link
EP (1) EP1068770B1 (fr)
JP (1) JP4258696B2 (fr)
KR (1) KR20010042428A (fr)
CN (1) CN1143593C (fr)
AR (1) AR018832A1 (fr)
AT (1) ATE294492T1 (fr)
AU (1) AU746216B2 (fr)
BG (1) BG104810A (fr)
BR (1) BR9909901A (fr)
CA (1) CA2326161A1 (fr)
CO (1) CO4830489A1 (fr)
CZ (1) CZ300065B6 (fr)
DE (1) DE69924990T2 (fr)
EA (1) EA003215B1 (fr)
GB (2) GB9806994D0 (fr)
HK (1) HK1032504A1 (fr)
HU (1) HUP0102859A3 (fr)
ID (1) ID27055A (fr)
IL (1) IL138312A0 (fr)
NO (1) NO20004921L (fr)
NZ (1) NZ506731A (fr)
PL (1) PL343115A1 (fr)
SK (1) SK14552000A3 (fr)
TR (1) TR200002878T2 (fr)
TW (1) TW475340B (fr)
WO (1) WO1999052324A1 (fr)
ZA (1) ZA200004746B (fr)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19922395C1 (de) * 1999-05-14 2001-01-11 Harman Audio Electronic Sys Deckenelement
DE19955867A1 (de) * 1999-11-22 2001-06-21 Harman Audio Electronic Sys Flachlautsprecheranordnung für Tieftonwiedergabe
GB0010998D0 (en) * 2000-05-08 2000-06-28 New Transducers Ltd Acoustic device
US7155021B2 (en) * 2000-05-08 2006-12-26 Koninklijke Philips Electronics N.V. Loudspeaker having an acoustic panel and an electrical driver
GB0018996D0 (en) * 2000-08-03 2000-09-20 New Transducers Ltd Bending wave loudspeaker
US6826285B2 (en) 2000-08-03 2004-11-30 New Transducers Limited Bending wave loudspeaker
DE10058102C2 (de) * 2000-11-23 2003-07-03 Harman Audio Electronic Sys Elektrodynamischer Biegemomententreiber
US7548854B2 (en) 2002-01-31 2009-06-16 Awi Licensing Company Architectural sound enhancement with pre-filtered masking sound
US6983819B2 (en) 2002-04-02 2006-01-10 Awi Licensing Company Entertainment sound panels
SE523321C2 (sv) * 2002-06-20 2004-04-13 Covial Device Ab Sätt och anordning för avkänning och indikering av akustisk emission
US8054194B2 (en) 2003-02-10 2011-11-08 Autronic Plastics, Inc. System and method for verifying a security status of a lockable container
GB0405475D0 (en) * 2004-03-11 2004-04-21 New Transducers Ltd Loudspeakers
DE102004028664A1 (de) * 2004-06-12 2006-01-19 Puren Gmbh Schwingungskörper eines Lautsprechersystems
US10158337B2 (en) 2004-08-10 2018-12-18 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
US11431312B2 (en) 2004-08-10 2022-08-30 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
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
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
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
JP5726375B2 (ja) * 2012-08-10 2015-05-27 京セラ株式会社 音響発生器、音響発生装置および電子機器
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
US10820883B2 (en) 2014-04-16 2020-11-03 Bongiovi Acoustics Llc Noise reduction assembly for auscultation of a body
US10639000B2 (en) 2014-04-16 2020-05-05 Bongiovi Acoustics Llc Device for wide-band auscultation
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
JP2018537910A (ja) 2015-11-16 2018-12-20 ボンジョビ アコースティックス リミテッド ライアビリティー カンパニー 表面音響変換器
US9621994B1 (en) 2015-11-16 2017-04-11 Bongiovi Acoustics Llc Surface acoustic transducer
GB2551723B (en) 2016-06-27 2018-11-28 Amina Tech Limited Speaker Panel
GB2560878B (en) 2017-02-24 2021-10-27 Google Llc A panel loudspeaker controller and a panel loudspeaker
JP2021521700A (ja) 2018-04-11 2021-08-26 ボンジョビ アコースティックス リミテッド ライアビリティー カンパニー オーディオ強化聴力保護システム
WO2020028833A1 (fr) 2018-08-02 2020-02-06 Bongiovi Acoustics Llc Système, procédé et appareil pour générer et traiter numériquement une fonction de transfert audio liée à la tête
CN117761165B (zh) * 2024-02-22 2024-05-03 中国石油大学(华东) 一种基于电磁超声阵列扭转导波的管道裂纹定位方法

Family Cites Families (8)

* 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
DE1132593B (de) * 1965-04-05 1962-07-05 Bolt Beranek & Newman Akustisch wirksame Platte, insbesondere zur Ankopplung an einen elektroakustischen Wandler
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
EA002108B1 (ru) * 1995-09-02 2001-12-24 Нью Трэнсдьюсерз Лимитед Громкоговоритель, содержащий панелеобразный звукоизлучающий элемент
SK26398A3 (en) * 1995-09-02 1998-09-09 New Transducers Ltd Loudspeakers comprising panel-form acoustic radiating elements
GB9704486D0 (en) * 1997-03-04 1997-04-23 New Transducers Ltd Acoustic devices etc
DE19757098C2 (de) * 1997-12-20 2003-01-09 Harman Audio Electronic Sys Aufhängung für Schallwiedergabeanordnungen nach dem Biegewellenprinzip

Also Published As

Publication number Publication date
CO4830489A1 (es) 1999-08-30
TW475340B (en) 2002-02-01
NZ506731A (en) 2003-02-28
CN1143593C (zh) 2004-03-24
ID27055A (id) 2001-02-22
BG104810A (bg) 2001-07-31
TR200002878T2 (tr) 2001-01-22
NO20004921L (no) 2000-11-28
KR20010042428A (ko) 2001-05-25
AR018832A1 (es) 2001-12-12
BR9909901A (pt) 2000-12-26
ZA200004746B (en) 2001-06-27
EA200001016A1 (ru) 2001-02-26
CZ20003591A3 (cs) 2001-01-17
HUP0102859A2 (hu) 2001-12-28
EP1068770A1 (fr) 2001-01-17
PL343115A1 (en) 2001-07-30
DE69924990T2 (de) 2006-02-23
AU746216B2 (en) 2002-04-18
EA003215B1 (ru) 2003-02-27
HK1032504A1 (en) 2001-07-20
ATE294492T1 (de) 2005-05-15
GB2350008A (en) 2000-11-15
SK14552000A3 (sk) 2001-05-10
IL138312A0 (en) 2001-10-31
EP1068770B1 (fr) 2005-04-27
GB2350008B (en) 2001-05-02
CZ300065B6 (cs) 2009-01-21
AU2947199A (en) 1999-10-25
WO1999052324A1 (fr) 1999-10-14
HUP0102859A3 (en) 2003-03-28
NO20004921D0 (no) 2000-09-29
GB0020986D0 (en) 2000-10-11
DE69924990D1 (de) 2005-06-02
JP4258696B2 (ja) 2009-04-30
JP2002511682A (ja) 2002-04-16
CN1296720A (zh) 2001-05-23
GB9806994D0 (en) 1998-06-03

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued