WO2001003467A3 - Dispositif acoustique - Google Patents

Dispositif acoustique Download PDF

Info

Publication number
WO2001003467A3
WO2001003467A3 PCT/GB2000/002353 GB0002353W WO0103467A3 WO 2001003467 A3 WO2001003467 A3 WO 2001003467A3 GB 0002353 W GB0002353 W GB 0002353W WO 0103467 A3 WO0103467 A3 WO 0103467A3
Authority
WO
WIPO (PCT)
Prior art keywords
panel
acoustic device
bending wave
wave acoustic
transducers
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.)
Ceased
Application number
PCT/GB2000/002353
Other languages
English (en)
Other versions
WO2001003467A2 (fr
Inventor
Christien Ellis
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
Priority to JP2001508196A priority Critical patent/JP2003503990A/ja
Priority to AU55475/00A priority patent/AU5547500A/en
Priority to EP00940555A priority patent/EP1192839A2/fr
Priority to NZ515327A priority patent/NZ515327A/en
Priority to HK02102795.1A priority patent/HK1041400A1/zh
Publication of WO2001003467A2 publication Critical patent/WO2001003467A2/fr
Publication of WO2001003467A3 publication Critical patent/WO2001003467A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • H04R7/26—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; 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

Un dispositif acoustique comprend un panneau (11) qui est capable de supporter des modes d'ondes de flexion à résonance et des transducteurs (19) montés sur ledit panneau. Parfois la réponse acoustique du panneau et des transducteurs peut comporter un pic de résonance du corps tout entier à une fréquence particulière. Pour réguler ce phénomène, une masse (21) peut être ajoutée au panneau telle que par exemple un couplage souple (23).
PCT/GB2000/002353 1999-07-02 2000-06-30 Dispositif acoustique Ceased WO2001003467A2 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2001508196A JP2003503990A (ja) 1999-07-02 2000-06-30 音響装置
AU55475/00A AU5547500A (en) 1999-07-02 2000-06-30 Acoustic device
EP00940555A EP1192839A2 (fr) 1999-07-02 2000-06-30 Dispositif acoustique
NZ515327A NZ515327A (en) 1999-07-02 2000-06-30 Acoustic device with a panel having a mass fixed thereto to control whole-body resonance
HK02102795.1A HK1041400A1 (zh) 1999-07-02 2000-06-30 彎曲波聲學裝置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9915361.1A GB9915361D0 (en) 1999-07-02 1999-07-02 Acoustic device
GB9915361.1 1999-07-02

Publications (2)

Publication Number Publication Date
WO2001003467A2 WO2001003467A2 (fr) 2001-01-11
WO2001003467A3 true WO2001003467A3 (fr) 2001-03-22

Family

ID=10856397

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2000/002353 Ceased WO2001003467A2 (fr) 1999-07-02 2000-06-30 Dispositif acoustique

Country Status (9)

Country Link
EP (1) EP1192839A2 (fr)
JP (1) JP2003503990A (fr)
CN (1) CN1351813A (fr)
AU (1) AU5547500A (fr)
GB (1) GB9915361D0 (fr)
HK (1) HK1041400A1 (fr)
NZ (1) NZ515327A (fr)
TW (1) TW488183B (fr)
WO (1) WO2001003467A2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7426804B2 (en) 2002-02-06 2008-09-23 Andersen Corporation Specialty display window
US6988339B2 (en) 2002-02-06 2006-01-24 Andersen Corporation Specialty media window
WO2005101899A2 (fr) * 2004-04-16 2005-10-27 New Transducers Limited Dispositif acoustique et procede de fabrication de celui-ci
RU2361371C2 (ru) * 2004-04-16 2009-07-10 Нью Трэнсдьюсерз Лимитед Акустическое устройство и способ создания акустического устройства
GB2489700B (en) * 2011-04-04 2013-09-18 Canon Kk Method and device for controlling the vibration modes of a vibrating support
GB2551723B (en) * 2016-06-27 2018-11-28 Amina Tech Limited Speaker Panel
GB2564061B (en) * 2016-06-27 2020-12-16 Amina Tech Limited Speaker panel
GB2568282B (en) * 2017-11-10 2020-11-25 Amina Tech Limited Flat panel loudspeaker

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4654554A (en) * 1984-09-05 1987-03-31 Sawafuji Dynameca Co., Ltd. Piezoelectric vibrating elements and piezoelectric electroacoustic transducers
US5376853A (en) * 1991-09-28 1994-12-27 Star Micronics Co., Ltd. Electroacoustic transducer
WO1997009842A2 (fr) * 1995-09-02 1997-03-13 New Transducers Limited Dispositif acoustique
WO1998052381A2 (fr) * 1997-05-15 1998-11-19 New Transducers Limited Haut-parleur a panneaux
EP0881856A1 (fr) * 1996-10-24 1998-12-02 Shinsei Corporation Vibrateur acoustique piezo-electrique et haut-parleur utilisant ledit vibrateur acoustique piezo-electrique correspondant

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4654554A (en) * 1984-09-05 1987-03-31 Sawafuji Dynameca Co., Ltd. Piezoelectric vibrating elements and piezoelectric electroacoustic transducers
US5376853A (en) * 1991-09-28 1994-12-27 Star Micronics Co., Ltd. Electroacoustic transducer
WO1997009842A2 (fr) * 1995-09-02 1997-03-13 New Transducers Limited Dispositif acoustique
EP0881856A1 (fr) * 1996-10-24 1998-12-02 Shinsei Corporation Vibrateur acoustique piezo-electrique et haut-parleur utilisant ledit vibrateur acoustique piezo-electrique correspondant
WO1998052381A2 (fr) * 1997-05-15 1998-11-19 New Transducers Limited Haut-parleur a panneaux

Also Published As

Publication number Publication date
CN1351813A (zh) 2002-05-29
NZ515327A (en) 2002-05-31
JP2003503990A (ja) 2003-01-28
GB9915361D0 (en) 1999-09-01
WO2001003467A2 (fr) 2001-01-11
TW488183B (en) 2002-05-21
AU5547500A (en) 2001-01-22
HK1041400A1 (zh) 2002-07-05
EP1192839A2 (fr) 2002-04-03

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