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GB2350008A - Acoustic device relying on bending wave action - Google Patents

Acoustic device relying on bending wave action

Info

Publication number
GB2350008A
GB2350008A GB0020986A GB0020986A GB2350008A GB 2350008 A GB2350008 A GB 2350008A GB 0020986 A GB0020986 A GB 0020986A GB 0020986 A GB0020986 A GB 0020986A GB 2350008 A GB2350008 A GB 2350008A
Authority
GB
United Kingdom
Prior art keywords
bending wave
acoustic device
wave action
device relying
relying
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.)
Granted
Application number
GB0020986A
Other versions
GB2350008B (en
GB0020986D0 (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
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 GB0020986D0 publication Critical patent/GB0020986D0/en
Publication of GB2350008A publication Critical patent/GB2350008A/en
Application granted granted Critical
Publication of GB2350008B publication Critical patent/GB2350008B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Toys (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

Acoustic device comprising a member relying on bending wave action with beneficial distribution of resonant modes thereof, wherein the member has its acoustically active area at least partly bounded by means having a substantially restraining nature in relation to bending wave vibration. Operation can be below coincidence, or above if desired for active acoustic device further having beneficial location of bending wave transducer means determined with reference to and taking account of such bounding means.
GB0020986A 1998-04-02 1999-03-30 Acoustic device Expired - Lifetime GB2350008B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9806994.1A GB9806994D0 (en) 1998-04-02 1998-04-02 Acoustic device
PCT/GB1999/000848 WO1999052324A1 (en) 1998-04-02 1999-03-30 Acoustic device relying on bending wave action

Publications (3)

Publication Number Publication Date
GB0020986D0 GB0020986D0 (en) 2000-10-11
GB2350008A true GB2350008A (en) 2000-11-15
GB2350008B GB2350008B (en) 2001-05-02

Family

ID=10829678

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9806994.1A Ceased GB9806994D0 (en) 1996-09-03 1998-04-02 Acoustic device
GB0020986A Expired - Lifetime GB2350008B (en) 1998-04-02 1999-03-30 Acoustic device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9806994.1A Ceased GB9806994D0 (en) 1996-09-03 1998-04-02 Acoustic device

Country Status (26)

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

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DE19922395C1 (en) * 1999-05-14 2001-01-11 Harman Audio Electronic Sys Ceiling element
US7257971B2 (en) 2000-07-31 2007-08-21 Autronics Plastics Inc. Case with internal lock
DE19955867A1 (en) * 1999-11-22 2001-06-21 Harman Audio Electronic Sys Flat speaker arrangement for bass reproduction
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
US6826285B2 (en) 2000-08-03 2004-11-30 New Transducers Limited Bending wave loudspeaker
GB0018996D0 (en) * 2000-08-03 2000-09-20 New Transducers Ltd Bending wave loudspeaker
DE10058102C2 (en) * 2000-11-23 2003-07-03 Harman Audio Electronic Sys Electrodynamic bending moment driver
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 (en) * 2002-06-20 2004-04-13 Covial Device Ab Method and apparatus for sensing and indicating acoustic emission
US8054194B2 (en) 2003-02-10 2011-11-08 Autronic Plastics, Inc. System and method for verifying a security status of a lockable container
US7140489B2 (en) 2003-03-26 2006-11-28 Autronic Plastics, Inc. Denial system for securing an asset within a container and methods of use
GB0405475D0 (en) * 2004-03-11 2004-04-21 New Transducers Ltd Loudspeakers
DE102004028664A1 (en) * 2004-06-12 2006-01-19 Puren Gmbh Vibration body of a speaker system
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
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
USD544743S1 (en) 2005-09-26 2007-06-19 Autronic Plastics, Inc. Media storage case
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
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
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
JP5726375B2 (en) * 2012-08-10 2015-05-27 京セラ株式会社 SOUND GENERATOR, SOUND GENERATOR, AND ELECTRONIC DEVICE
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
US10820883B2 (en) 2014-04-16 2020-11-03 Bongiovi Acoustics Llc Noise reduction assembly for auscultation of a body
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
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
US9621994B1 (en) 2015-11-16 2017-04-11 Bongiovi Acoustics Llc Surface acoustic transducer
US9906867B2 (en) 2015-11-16 2018-02-27 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
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
CN117761165B (en) * 2024-02-22 2024-05-03 中国石油大学(华东) Pipeline crack positioning method based on electromagnetic ultrasonic array torsion guided wave

Citations (7)

* 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
US3347335A (en) * 1965-04-05 1967-10-17 Bolt Beranek & Newman Acoustic-wave apparatus
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
WO1997009845A2 (en) * 1995-09-02 1997-03-13 New Transducers Limited Loudspeakers comprising panel-form acoustic radiating elements
WO1997009840A2 (en) * 1995-09-02 1997-03-13 New Transducers Limited Loudspeakers comprising panel-form acoustic radiating elements
WO1997009842A2 (en) * 1995-09-02 1997-03-13 New Transducers Limited Acoustic device
EP0924960A2 (en) * 1997-12-20 1999-06-23 NOKIA TECHNOLOGY GmbH Suspension for sound reproduction arrangements based on the bending wave principle

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9704486D0 (en) * 1997-03-04 1997-04-23 New Transducers Ltd Acoustic devices etc

Patent Citations (7)

* 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
US3347335A (en) * 1965-04-05 1967-10-17 Bolt Beranek & Newman Acoustic-wave apparatus
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
WO1997009845A2 (en) * 1995-09-02 1997-03-13 New Transducers Limited Loudspeakers comprising panel-form acoustic radiating elements
WO1997009840A2 (en) * 1995-09-02 1997-03-13 New Transducers Limited Loudspeakers comprising panel-form acoustic radiating elements
WO1997009842A2 (en) * 1995-09-02 1997-03-13 New Transducers Limited Acoustic device
EP0924960A2 (en) * 1997-12-20 1999-06-23 NOKIA TECHNOLOGY GmbH Suspension for sound reproduction arrangements based on the bending wave principle

Also Published As

Publication number Publication date
PL343115A1 (en) 2001-07-30
NZ506731A (en) 2003-02-28
GB2350008B (en) 2001-05-02
TR200002878T2 (en) 2001-01-22
TW475340B (en) 2002-02-01
EA003215B1 (en) 2003-02-27
JP2002511682A (en) 2002-04-16
ZA200004746B (en) 2001-06-27
BG104810A (en) 2001-07-31
EA200001016A1 (en) 2001-02-26
KR20010042428A (en) 2001-05-25
CZ20003591A3 (en) 2001-01-17
EP1068770B1 (en) 2005-04-27
ATE294492T1 (en) 2005-05-15
AU2947199A (en) 1999-10-25
CN1296720A (en) 2001-05-23
AU746216B2 (en) 2002-04-18
HUP0102859A2 (en) 2001-12-28
HUP0102859A3 (en) 2003-03-28
IL138312A0 (en) 2001-10-31
GB9806994D0 (en) 1998-06-03
JP4258696B2 (en) 2009-04-30
NO20004921D0 (en) 2000-09-29
CO4830489A1 (en) 1999-08-30
DE69924990D1 (en) 2005-06-02
CN1143593C (en) 2004-03-24
GB0020986D0 (en) 2000-10-11
BR9909901A (en) 2000-12-26
ID27055A (en) 2001-02-22
WO1999052324A1 (en) 1999-10-14
HK1032504A1 (en) 2001-07-20
SK14552000A3 (en) 2001-05-10
DE69924990T2 (en) 2006-02-23
NO20004921L (en) 2000-11-28
CZ300065B6 (en) 2009-01-21
AR018832A1 (en) 2001-12-12
CA2326161A1 (en) 1999-10-14
EP1068770A1 (en) 2001-01-17

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)
PE20 Patent expired after termination of 20 years

Expiry date: 20190329