CA2283381A1 - Acoustic device - Google Patents

Acoustic device Download PDF

Info

Publication number
CA2283381A1
CA2283381A1 CA002283381A CA2283381A CA2283381A1 CA 2283381 A1 CA2283381 A1 CA 2283381A1 CA 002283381 A CA002283381 A CA 002283381A CA 2283381 A CA2283381 A CA 2283381A CA 2283381 A1 CA2283381 A1 CA 2283381A1
Authority
CA
Canada
Prior art keywords
diaphragm
acoustic
bending
drive unit
acoustic device
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.)
Abandoned
Application number
CA002283381A
Other languages
English (en)
French (fr)
Inventor
Neil Harris
Henry Azima
Martin Colloms
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
Individual
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 Individual filed Critical Individual
Publication of CA2283381A1 publication Critical patent/CA2283381A1/en
Abandoned 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
    • H04R7/10—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact
    • 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
    • H04R2440/07—Loudspeakers using bending wave resonance and pistonic motion to generate sound

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)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Sink And Installation For Waste Water (AREA)
  • Seal Device For Vehicle (AREA)
  • Surgical Instruments (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
CA002283381A 1997-03-04 1998-02-27 Acoustic device Abandoned CA2283381A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9704486.1 1997-03-04
GBGB9704486.1A GB9704486D0 (en) 1997-03-04 1997-03-04 Acoustic devices etc
PCT/GB1998/000621 WO1998039947A1 (en) 1997-03-04 1998-02-27 Acoustic device

Publications (1)

Publication Number Publication Date
CA2283381A1 true CA2283381A1 (en) 1998-09-11

Family

ID=10808687

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002283381A Abandoned CA2283381A1 (en) 1997-03-04 1998-02-27 Acoustic device

Country Status (30)

Country Link
EP (2) EP1133212A3 (no)
JP (1) JP2001513967A (no)
KR (1) KR20000075889A (no)
CN (1) CN1157999C (no)
AR (1) AR011920A1 (no)
AT (1) ATE231677T1 (no)
AU (1) AU735051B2 (no)
BG (1) BG103669A (no)
BR (1) BR9808169A (no)
CA (1) CA2283381A1 (no)
CZ (1) CZ310299A3 (no)
DE (1) DE69810905T2 (no)
EA (1) EA002480B1 (no)
EE (1) EE9900386A (no)
ES (1) ES2191925T3 (no)
GB (1) GB9704486D0 (no)
GE (1) GEP20022748B (no)
HK (1) HK1022398A1 (no)
HU (1) HUP0002652A3 (no)
ID (1) ID20143A (no)
IL (1) IL131485A0 (no)
NO (1) NO994288D0 (no)
NZ (1) NZ336943A (no)
PL (1) PL335366A1 (no)
SK (1) SK119499A3 (no)
TR (1) TR199902177T2 (no)
TW (1) TW462199B (no)
WO (1) WO1998039947A1 (no)
YU (1) YU39599A (no)
ZA (1) ZA981662B (no)

Families Citing this family (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9806994D0 (en) * 1998-04-02 1998-06-03 New Transducers Ltd Acoustic device
GB9818959D0 (en) * 1998-09-02 1998-10-21 New Transducers Ltd Panelform loudspeaker
GB2360665B (en) * 1998-06-22 2003-01-15 Slab Technology Ltd Loudspeakers
RO121307B1 (ro) 1998-06-22 2007-02-28 Slab Technology Limited Difuzor audio
GB9903044D0 (en) * 1999-02-11 1999-03-31 New Transducers Ltd Loudspeakers
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
WO2002078391A2 (en) * 2001-03-23 2002-10-03 New Transducers Limited Bending wave acoustic radiator
US7120263B2 (en) 2001-03-23 2006-10-10 New Transducers Limited Bending wave acoustic radiator
US7002070B2 (en) 2001-06-22 2006-02-21 Shelley Katz Electronic piano
US7548854B2 (en) 2002-01-31 2009-06-16 Awi Licensing Company Architectural sound enhancement with pre-filtered masking sound
US7010143B2 (en) * 2002-08-22 2006-03-07 Tai-Yan Kam Rectangular panel-form loudspeaker and its radiating panel
CA2553744A1 (en) * 2003-01-22 2004-08-05 Shelley Katz Apparatus and method for producing sound
WO2006011604A1 (ja) * 2004-07-30 2006-02-02 Matsushita Electric Industrial Co., Ltd. スピーカシステム、携帯端末装置および電子機器
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
US11431312B2 (en) 2004-08-10 2022-08-30 Bongiovi Acoustics Llc System and method for digital signal processing
JP4779526B2 (ja) * 2005-09-15 2011-09-28 日本電気株式会社 パネルスピーカ
US10069471B2 (en) 2006-02-07 2018-09-04 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
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
US10848867B2 (en) 2006-02-07 2020-11-24 Bongiovi Acoustics Llc System and method for digital signal processing
JP4793018B2 (ja) * 2006-02-20 2011-10-12 パナソニック株式会社 振動板とそれを用いたスピーカ
KR100883241B1 (ko) * 2007-01-31 2009-02-10 욘 싱 인더스트리얼 컴퍼니., 리미티드. 음향의 물리적 특성을 따르는 전대역 단일체 음향막을 갖는 음향장치
DE102007041850A1 (de) * 2007-09-03 2009-03-05 Robert Bosch Gmbh Ultraschallsensor mit einem Trägerelement und einer Membran, wobei die Membran in das Trägerelement eingebettet ist
GB0811015D0 (en) * 2008-06-17 2008-07-23 Deben Acoustics Improved acoustic device
KR101436271B1 (ko) 2010-08-23 2014-08-29 노키아 코포레이션 터치 감지형 사용자 인터페이스에서 햅틱 및 오디오 피드백을 제공하는 장치 및 방법
CH704183A2 (fr) * 2010-12-02 2012-06-15 Montres Breguet Sa Membrane de rayonnement acoustique pour une boite a musique ou une montre a sonnerie.
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
US9628917B2 (en) * 2014-07-23 2017-04-18 Bose Corporation Sound producing system
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
DE102015217778B4 (de) * 2015-09-17 2019-05-29 Robert Bosch Gmbh Akustischer Sensor mit einer Membran und einem elektroakustischen Wandler
US9621994B1 (en) 2015-11-16 2017-04-11 Bongiovi Acoustics Llc Surface acoustic transducer
WO2017087495A1 (en) 2015-11-16 2017-05-26 Bongiovi Acoustics Llc Surface acoustic transducer
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
EP3273210B1 (de) * 2016-07-18 2022-05-18 VEGA Grieshaber KG Vibrationsgrenzstandsschalter und verfahren zur herstellung eines vibrationsgrenzstandsschalter
GB2568282B (en) 2017-11-10 2020-11-25 Amina Tech Limited Flat panel loudspeaker
AU2019252524A1 (en) 2018-04-11 2020-11-05 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
WO2022121590A1 (zh) * 2020-12-09 2022-06-16 青岛海信激光显示股份有限公司 发声板及投影屏幕
CN112584288B (zh) * 2020-12-09 2023-03-14 青岛海信激光显示股份有限公司 发声板及投影屏幕
CN113642202A (zh) * 2021-06-29 2021-11-12 东风汽车集团股份有限公司 一种变厚度薄板

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5568795A (en) * 1978-11-20 1980-05-23 Sony Corp Speaker
GB2074812B (en) * 1980-04-21 1984-01-04 Matsushita Electric Ind Co Ltd Method of manufacturing a speaker diaphragm
JPH01311795A (ja) * 1988-06-10 1989-12-15 Minebea Co Ltd スピーカ用振動板
EP0541646B1 (en) * 1990-08-04 1995-01-11 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Panel-form loudspeaker
UA51671C2 (uk) * 1995-09-02 2002-12-16 Нью Транзд'Юсез Лімітед Акустичний пристрій

Also Published As

Publication number Publication date
NO994288L (no) 1999-09-03
CZ310299A3 (cs) 1999-12-15
TR199902177T2 (xx) 2000-01-21
ZA981662B (en) 1998-09-03
EP1133212A3 (en) 2006-01-11
EP0965245B1 (en) 2003-01-22
KR20000075889A (ko) 2000-12-26
BG103669A (en) 2000-03-31
WO1998039947A1 (en) 1998-09-11
BR9808169A (pt) 2000-05-16
HUP0002652A3 (en) 2001-11-28
HK1022398A1 (en) 2000-08-04
PL335366A1 (en) 2000-04-25
EP1133212A2 (en) 2001-09-12
CN1249892A (zh) 2000-04-05
EA002480B1 (ru) 2002-06-27
AU6305398A (en) 1998-09-22
DE69810905T2 (de) 2003-12-24
ES2191925T3 (es) 2003-09-16
EP0965245A1 (en) 1999-12-22
AR011920A1 (es) 2000-09-13
SK119499A3 (en) 2000-08-14
DE69810905D1 (de) 2003-02-27
TW462199B (en) 2001-11-01
ATE231677T1 (de) 2003-02-15
ID20143A (id) 1998-10-08
GEP20022748B (en) 2002-07-25
EA199900793A1 (ru) 2000-04-24
EE9900386A (et) 2000-04-17
HUP0002652A2 (hu) 2000-12-28
NZ336943A (en) 2001-02-23
JP2001513967A (ja) 2001-09-04
YU39599A (sh) 2001-12-26
NO994288D0 (no) 1999-09-03
IL131485A0 (en) 2001-01-28
GB9704486D0 (en) 1997-04-23
AU735051B2 (en) 2001-06-28
CN1157999C (zh) 2004-07-14

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Legal Events

Date Code Title Description
FZDE Discontinued