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BR9916144A - Acoustic devices - Google Patents

Acoustic devices

Info

Publication number
BR9916144A
BR9916144A BR9916144-3A BR9916144A BR9916144A BR 9916144 A BR9916144 A BR 9916144A BR 9916144 A BR9916144 A BR 9916144A BR 9916144 A BR9916144 A BR 9916144A
Authority
BR
Brazil
Prior art keywords
acoustic devices
exciters
panel
coincidence
wavelength
Prior art date
Application number
BR9916144-3A
Other languages
Portuguese (pt)
Inventor
Graham Bank
Mark Starnes
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 BR9916144A publication Critical patent/BR9916144A/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
    • H04R7/045—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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/227—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only  using transducers reproducing the same frequency band
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/26—Spatial arrangements of separate transducers responsive to two or more frequency ranges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
    • H04R3/14—Cross-over networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H04R9/066—Loudspeakers using the principle of inertia

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Multimedia (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

Patente de Invenção: "DISPOSITIVOS ACúSTICOS". Processo de reduzir características que ocorrem em freq³ências específicas, tal como em coincidência. Um painel (11) apresenta excitadores (13, 15) dispostos para reduzir a característica. Os excitadores podem ser acionados em fase, embora sejam espaçados entre si por uma distância substancialmente igual à metade do comprimento de onda das ondas de flexão no painel nesta freq³ência específica.Invention Patent: "ACOUSTIC DEVICES". Process of reducing characteristics that occur at specific frequencies, such as coincidence. A panel (11) has exciters (13, 15) arranged to reduce the characteristic. The exciters can be driven in phase, although they are spaced apart by a distance substantially equal to half the wavelength of the bending waves on the panel at this specific frequency.

BR9916144-3A 1998-11-30 1999-11-29 Acoustic devices BR9916144A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9826164.7A GB9826164D0 (en) 1998-11-30 1998-11-30 Acoustic devices
PCT/GB1999/003956 WO2000033612A2 (en) 1998-11-30 1999-11-29 Bending wave acoustic devices

Publications (1)

Publication Number Publication Date
BR9916144A true BR9916144A (en) 2001-11-06

Family

ID=10843276

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9916144-3A BR9916144A (en) 1998-11-30 1999-11-29 Acoustic devices

Country Status (8)

Country Link
EP (1) EP1135966A2 (en)
JP (1) JP2002532038A (en)
CN (1) CN1328762A (en)
AU (1) AU1571800A (en)
BR (1) BR9916144A (en)
GB (1) GB9826164D0 (en)
TW (1) TW469746B (en)
WO (1) WO2000033612A2 (en)

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW511391B (en) 2000-01-24 2002-11-21 New Transducers Ltd Transducer
US6865277B2 (en) 2000-01-27 2005-03-08 New Transducers Limited Passenger vehicle
US7151837B2 (en) 2000-01-27 2006-12-19 New Transducers Limited Loudspeaker
GB0018997D0 (en) * 2000-08-03 2000-09-20 New Transducers Ltd Bending wave loudspeaker
GB0019701D0 (en) * 2000-08-11 2000-09-27 New Transducers Ltd Loudspeaker
EP1209949A1 (en) * 2000-11-22 2002-05-29 Technische Universiteit Delft Wave Field Synthesys Sound reproduction system using a Distributed Mode Panel
US6839444B2 (en) 2000-11-30 2005-01-04 New Transducers Limited Loudspeakers
GB0029098D0 (en) * 2000-11-30 2001-01-10 New Transducers Ltd Vibration transducer
GB0317331D0 (en) 2003-07-24 2003-08-27 New Transducers Ltd Acoustic device
MXPA06008576A (en) * 2004-01-30 2006-08-28 Thomson Licensing First-order loudspeaker crossover network.
US8284955B2 (en) 2006-02-07 2012-10-09 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
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
FR2885760B1 (en) 2005-05-13 2007-09-28 Bernard Fradin SPEAKER WITHOUT MEMBRANE
ITMI20051106A1 (en) * 2005-06-13 2006-12-14 Enrico Ciresa S R L SOUND PANEL FOR THE DIFFUSION OF SOUNDS AND MUSIC AND ITS PROCESS OF MANUFACTURING.
JP2007116422A (en) * 2005-10-20 2007-05-10 Sony Corp Audio output apparatus and method
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
US10069471B2 (en) 2006-02-07 2018-09-04 Bongiovi Acoustics Llc System and method for digital signal processing
CN1882198B (en) * 2006-04-30 2012-06-13 南京大学 Method for designing sound pressure frequency response curve of drive location optimization bending vibration type thin plate loudspeaker
DE102006039455A1 (en) * 2006-08-23 2008-03-13 Puren Gmbh Surface loudspeaker device for installation in building wall, has passive filter unit implemented separately from surface diaphragm for positioning of surface diaphragm independently in limited area, and covering adjusting unit
JP2008160651A (en) * 2006-12-26 2008-07-10 Fujitsu Ten Ltd Method and device for generating divided vibration
JP5919273B2 (en) 2010-08-26 2016-05-18 ヘンケル アイピー アンド ホールディング ゲゼルシャフト ミット ベシュレンクテル ハフツング Amorphous poly-α-olefin adhesive with low coating temperature
CN104350766A (en) * 2012-08-10 2015-02-11 京瓷株式会社 Sound generator, sound generation device, 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
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
WO2016003962A1 (en) * 2014-07-01 2016-01-07 Corning Incorporated Cross-cancellation of audio signals in a stereo flat panel speaker
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
CN107925824B (en) 2015-08-20 2021-01-05 罗切斯特大学 System and method for controlling panel-form loudspeakers using modal crossover networks
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
US10966042B2 (en) 2015-11-25 2021-03-30 The University Of Rochester Method for rendering localized vibrations on panels
CN108293166B (en) 2015-11-25 2020-10-02 罗切斯特大学 Time and space control system and method for panel vibration and virtual source generation method
KR102376136B1 (en) * 2016-12-27 2022-03-18 소니그룹주식회사 display device
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
CN112532901B (en) * 2019-09-19 2023-01-10 海信视像科技股份有限公司 Display device and terminal
KR20240098646A (en) * 2022-12-21 2024-06-28 엘지디스플레이 주식회사 Apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
UA51671C2 (en) * 1995-09-02 2002-12-16 Нью Транзд'Юсез Лімітед Acoustic device
AU4955697A (en) * 1996-12-20 1998-07-17 Noise Cancellation Technologies, Inc. Electroacoustic transducers comprising vibrating panels
IL130678A0 (en) * 1997-01-09 2000-06-01 New Transducers Ltd Loudspeakers
GB9709959D0 (en) * 1997-05-15 1997-07-09 New Transducers Ltd Panel-form loudspeakers

Also Published As

Publication number Publication date
GB9826164D0 (en) 1999-01-20
WO2000033612A3 (en) 2000-08-17
AU1571800A (en) 2000-06-19
EP1135966A2 (en) 2001-09-26
WO2000033612A2 (en) 2000-06-08
CN1328762A (en) 2001-12-26
JP2002532038A (en) 2002-09-24
TW469746B (en) 2001-12-21

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal acc. article 33 of ipl - extension of time limit for request of examination expired