EP1414266A3 - Active acoustic devices - Google Patents

Active acoustic devices Download PDF

Info

Publication number
EP1414266A3
EP1414266A3 EP04075008A EP04075008A EP1414266A3 EP 1414266 A3 EP1414266 A3 EP 1414266A3 EP 04075008 A EP04075008 A EP 04075008A EP 04075008 A EP04075008 A EP 04075008A EP 1414266 A3 EP1414266 A3 EP 1414266A3
Authority
EP
European Patent Office
Prior art keywords
acoustic
transducer means
active
distribution
location
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
EP04075008A
Other languages
German (de)
French (fr)
Other versions
EP1414266A2 (en
EP1414266B1 (en
Inventor
Farad Azima
Henry Azima
Martin Colloms
Graham Bank
Nicholas Patrick Roland Hill
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
Priority claimed from GBGB9801054.9A external-priority patent/GB9801054D0/en
Priority claimed from GBGB9801057.2A external-priority patent/GB9801057D0/en
Priority claimed from GBGB9811100.8A external-priority patent/GB9811100D0/en
Priority claimed from GBGB9813293.9A external-priority patent/GB9813293D0/en
Application filed by New Transducers Ltd filed Critical New Transducers Ltd
Publication of EP1414266A2 publication Critical patent/EP1414266A2/en
Publication of EP1414266A3 publication Critical patent/EP1414266A3/en
Application granted granted Critical
Publication of EP1414266B1 publication Critical patent/EP1414266B1/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
    • H04R7/26—Damping by means acting directly on free portion of diaphragm or cone
    • 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
    • H04R2440/05—Aspects relating to the positioning and way or means of mounting of exciters to resonant bending wave panels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/15—Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops

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)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

Active acoustic device comprises a panel member (11) having distribution of resonant modes of bending wave action determining acoustic performance in conjunction with transducer means (31-34). The transducer means (31-34) is coupled to the panel member (11) at a marginal position. The arrangement is such as to result in acoustically acceptable action dependent on said distribution of active said resonant modes. Methods of selecting the transducer location, or improvement by location of localised marginal clamping, rely on assessing best or better operative interaction of said transducer means (31-34) and the panel members (11) according to parameters of acoustic output for the device as an acoustic radiator.
EP04075008A 1998-01-20 1999-01-15 Active acoustic devices Expired - Lifetime EP1414266B1 (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
GBGB9801054.9A GB9801054D0 (en) 1998-01-20 1998-01-20 Acoustic panels
GB9801054 1998-01-20
GB9801057 1998-01-20
GBGB9801057.2A GB9801057D0 (en) 1998-01-20 1998-01-20 Acoustic panels
GBGB9811100.8A GB9811100D0 (en) 1998-05-23 1998-05-23 Acoustic panels
GBGB9813293.9A GB9813293D0 (en) 1998-06-20 1998-06-20 Acoustic panels
EP99901055A EP1050190B1 (en) 1998-01-20 1999-01-15 Active acoustic devices comprising panel members

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP99901055.6 Division 1999-01-15
EP99901055A Division EP1050190B1 (en) 1998-01-20 1999-01-15 Active acoustic devices comprising panel members

Publications (3)

Publication Number Publication Date
EP1414266A2 EP1414266A2 (en) 2004-04-28
EP1414266A3 true EP1414266A3 (en) 2006-08-16
EP1414266B1 EP1414266B1 (en) 2008-02-13

Family

ID=27451742

Family Applications (2)

Application Number Title Priority Date Filing Date
EP04075008A Expired - Lifetime EP1414266B1 (en) 1998-01-20 1999-01-15 Active acoustic devices
EP99901055A Expired - Lifetime EP1050190B1 (en) 1998-01-20 1999-01-15 Active acoustic devices comprising panel members

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP99901055A Expired - Lifetime EP1050190B1 (en) 1998-01-20 1999-01-15 Active acoustic devices comprising panel members

Country Status (23)

Country Link
EP (2) EP1414266B1 (en)
JP (1) JP4173283B2 (en)
KR (1) KR100646191B1 (en)
CN (1) CN1287766B (en)
AR (1) AR014430A1 (en)
AT (1) ATE280482T1 (en)
AU (1) AU747693B2 (en)
BG (1) BG104543A (en)
BR (1) BR9907145A (en)
CA (1) CA2318292A1 (en)
DE (2) DE69839134T2 (en)
EA (1) EA200000781A1 (en)
HK (1) HK1029247A1 (en)
HU (1) HUP0102858A3 (en)
IL (1) IL136820A0 (en)
NO (1) NO20003705L (en)
NZ (1) NZ504133A (en)
PL (1) PL341377A1 (en)
SK (1) SK10822000A3 (en)
TR (1) TR200002108T2 (en)
TW (1) TW432889B (en)
WO (1) WO1999037121A1 (en)
YU (1) YU36800A (en)

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US7151837B2 (en) 2000-01-27 2006-12-19 New Transducers Limited Loudspeaker
US6721436B1 (en) 2000-03-29 2004-04-13 Sound Advance Systems, Inc. Remote edge-driven panel speaker
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GB0019701D0 (en) * 2000-08-11 2000-09-27 New Transducers Ltd Loudspeaker
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JP3886391B2 (en) 2002-02-15 2007-02-28 シャープ株式会社 CARD-TYPE DEVICE AND ELECTRONIC DEVICE HAVING THE SAME
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JP4196097B2 (en) * 2003-10-06 2008-12-17 パナソニック株式会社 Speaker, speaker module and electronic device using the same
GB0400323D0 (en) * 2004-01-08 2004-02-11 New Transducers Ltd Loudspeakers
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DE102004032223A1 (en) * 2004-07-02 2006-01-19 Siemens Ag Audiovisual arrangement
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
JP4700323B2 (en) * 2004-10-28 2011-06-15 ホシデン株式会社 Flat panel speaker
JP4072542B2 (en) * 2005-03-14 2008-04-09 Ｎｅｃアクセステクニカ株式会社 Speaker integrated display
EP1938660A4 (en) 2005-10-13 2014-03-26 Donnelly Corp Acoustical window assembly for vehicle
CN101360693B (en) * 2005-12-07 2012-06-20 旭硝子欧洲玻璃公司 Sound-generating glazing
US8389120B2 (en) 2005-12-07 2013-03-05 Agc Glass Europe Sound-generating glazing
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
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
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
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GB2471474B (en) * 2009-06-30 2014-11-19 New Transducers Ltd Actuator
JP5527878B2 (en) * 2009-07-30 2014-06-25 トムソン ライセンシング Display device and audio output device
FR2955226B1 (en) * 2010-01-08 2011-12-30 Commissariat Energie Atomique ACOUSTIC WAVE DETECTION DEVICE AND SYSTEM FOR LOCATING ACOUSTIC WAVE SOURCE
WO2011129116A1 (en) 2010-04-15 2011-10-20 パナソニック株式会社 Piezoelectric speaker
JP2012105021A (en) * 2010-11-09 2012-05-31 Sony Corp Speaker device
US8983098B2 (en) * 2012-08-14 2015-03-17 Turtle Beach Corporation Substantially planate parametric emitter and associated methods
WO2014153252A2 (en) * 2013-03-14 2014-09-25 Lewis Athanas Acoustic transducer and method for driving same
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
US10820883B2 (en) 2014-04-16 2020-11-03 Bongiovi Acoustics Llc Noise reduction assembly for auscultation of a body
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US9564146B2 (en) 2014-08-01 2017-02-07 Bongiovi Acoustics Llc System and method for digital signal processing in deep diving environment
US9660596B2 (en) * 2015-01-23 2017-05-23 Tectonic Audio Labs Audio transducer stabilization system and method
US9638672B2 (en) 2015-03-06 2017-05-02 Bongiovi Acoustics Llc System and method for acquiring acoustic information from a resonating body
CN104789473B (en) * 2015-05-18 2018-02-09 宁波大学 A kind of impermeable protective agent frozen for microalgae
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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
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Also Published As

Publication number Publication date
DE69921295D1 (en) 2004-11-25
HK1029247A1 (en) 2001-03-23
DE69921295T2 (en) 2006-02-09
EP1050190B1 (en) 2004-10-20
NO20003705D0 (en) 2000-07-19
EP1050190A1 (en) 2000-11-08
EP1414266A2 (en) 2004-04-28
HUP0102858A2 (en) 2001-12-28
AR014430A1 (en) 2001-02-28
CN1287766B (en) 2010-06-23
AU2068199A (en) 1999-08-02
KR20010024874A (en) 2001-03-26
TR200002108T2 (en) 2000-11-21
SK10822000A3 (en) 2000-12-11
EA200000781A1 (en) 2000-12-25
BR9907145A (en) 2000-10-24
CA2318292A1 (en) 1999-07-22
HUP0102858A3 (en) 2003-03-28
KR100646191B1 (en) 2006-11-17
WO1999037121A1 (en) 1999-07-22
DE69839134D1 (en) 2008-03-27
NZ504133A (en) 2002-03-28
DE69839134T2 (en) 2009-02-12
PL341377A1 (en) 2001-04-09
AU747693B2 (en) 2002-05-16
YU36800A (en) 2002-03-18
NO20003705L (en) 2000-09-20
JP4173283B2 (en) 2008-10-29
DE69921295T8 (en) 2006-07-06
TW432889B (en) 2001-05-01
EP1414266B1 (en) 2008-02-13
ATE280482T1 (en) 2004-11-15
CN1287766A (en) 2001-03-14
BG104543A (en) 2001-01-31
JP2002510182A (en) 2002-04-02
IL136820A0 (en) 2001-06-14

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