NO20004921L - Acoustic device - Google Patents

Acoustic device

Info

Publication number
NO20004921L
NO20004921L NO20004921A NO20004921A NO20004921L NO 20004921 L NO20004921 L NO 20004921L NO 20004921 A NO20004921 A NO 20004921A NO 20004921 A NO20004921 A NO 20004921A NO 20004921 L NO20004921 L NO 20004921L
Authority
NO
Norway
Prior art keywords
oscillations
acoustic device
clamping
active
plate
Prior art date
Application number
NO20004921A
Other languages
Norwegian (no)
Other versions
NO20004921D0 (en
Inventor
Henry Azima
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 NO20004921D0 publication Critical patent/NO20004921D0/en
Publication of NO20004921L publication Critical patent/NO20004921L/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; 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)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (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)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

Akustisk innretning som omfatter et aktivt svingeelement i form av en plate (10, 20, 40) hvis resonansmodi for bøyesvingningene er fordelt på gunstig måte over overflaten. Platen har sitt akustisk aktive område (30) i det minste delvis avgrenset i en innspenning som i større eller mindre grad begrenser svingetendensen langs kantene. Svingningene kan fore-gå under koinsidensfrekvensen eller over denne dersom dette er ønsket for en aktiv akustisk innretning som i tillegg har et gunstig sted for en akustisk omvandler for å generere svingningene. Plasseringen av omvandleren er i samsvar med hvor innspenningen er anordnet.Acoustic device comprising an active pivoting element in the form of a plate (10, 20, 40) whose resonant modes for the bending oscillations are advantageously distributed over the surface. The plate has its acoustically active area (30) at least partially delimited in a clamping which to a greater or lesser extent limits the swinging tendency along the edges. The oscillations may occur below or above the coincidence frequency if this is desired for an active acoustic device which in addition has a favorable location for an acoustic transducer to generate the oscillations. The location of the converter is in accordance with where the clamping is arranged.

NO20004921A 1998-04-02 2000-09-29 Acoustic device NO20004921L (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 (2)

Publication Number Publication Date
NO20004921D0 NO20004921D0 (en) 2000-09-29
NO20004921L true NO20004921L (en) 2000-11-28

Family

ID=10829678

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20004921A NO20004921L (en) 1998-04-02 2000-09-29 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
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 (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
WO2004088071A2 (en) 2003-03-26 2004-10-14 Autronic Plastics, Inc. Benefit denial systems 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
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
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
USD544743S1 (en) 2005-09-26 2007-06-19 Autronic Plastics, Inc. Media storage case
US10848867B2 (en) 2006-02-07 2020-11-24 Bongiovi Acoustics Llc System and method for digital signal processing
US10069471B2 (en) 2006-02-07 2018-09-04 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
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
CN103891314A (en) * 2012-08-10 2014-06-25 京瓷株式会社 Sound generator, sound generating device and electronic equipment
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
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
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
US11211043B2 (en) 2018-04-11 2021-12-28 Bongiovi Acoustics Llc Audio enhanced hearing protection system
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
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

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 (en) * 1965-04-05 1962-07-05 Bolt Beranek & Newman Acoustically effective plate, especially for coupling to an electroacoustic transducer
ATE117155T1 (en) * 1990-08-04 1995-01-15 Secr Defence Brit PANEL-SHAPED SPEAKER.
WO1997009845A2 (en) * 1995-09-02 1997-03-13 New Transducers Limited Loudspeakers comprising panel-form acoustic radiating elements
ES2131953T3 (en) * 1995-09-02 1999-08-01 New Transducers Ltd SPEAKERS WHICH ARE COMPOSED OF PANEL SHAPED ACOUSTIC RADIATION ELEMENTS.
UA51671C2 (en) * 1995-09-02 2002-12-16 Нью Транзд'Юсез Лімітед Acoustic device
GB9704486D0 (en) * 1997-03-04 1997-04-23 New Transducers Ltd Acoustic devices etc
DE19757098C2 (en) * 1997-12-20 2003-01-09 Harman Audio Electronic Sys Suspension for sound reproduction arrangements based on the bending wave principle

Also Published As

Publication number Publication date
SK14552000A3 (en) 2001-05-10
WO1999052324A1 (en) 1999-10-14
EP1068770B1 (en) 2005-04-27
AU746216B2 (en) 2002-04-18
EA003215B1 (en) 2003-02-27
TW475340B (en) 2002-02-01
ZA200004746B (en) 2001-06-27
ATE294492T1 (en) 2005-05-15
PL343115A1 (en) 2001-07-30
NZ506731A (en) 2003-02-28
CA2326161A1 (en) 1999-10-14
EP1068770A1 (en) 2001-01-17
HUP0102859A2 (en) 2001-12-28
AU2947199A (en) 1999-10-25
IL138312A0 (en) 2001-10-31
CZ20003591A3 (en) 2001-01-17
CN1296720A (en) 2001-05-23
CZ300065B6 (en) 2009-01-21
DE69924990T2 (en) 2006-02-23
NO20004921D0 (en) 2000-09-29
CO4830489A1 (en) 1999-08-30
GB0020986D0 (en) 2000-10-11
JP4258696B2 (en) 2009-04-30
KR20010042428A (en) 2001-05-25
TR200002878T2 (en) 2001-01-22
DE69924990D1 (en) 2005-06-02
GB2350008A (en) 2000-11-15
ID27055A (en) 2001-02-22
JP2002511682A (en) 2002-04-16
GB9806994D0 (en) 1998-06-03
CN1143593C (en) 2004-03-24
HUP0102859A3 (en) 2003-03-28
BG104810A (en) 2001-07-31
EA200001016A1 (en) 2001-02-26
HK1032504A1 (en) 2001-07-20
GB2350008B (en) 2001-05-02
AR018832A1 (en) 2001-12-12
BR9909901A (en) 2000-12-26

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