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EP1133212A3 - Acoustic device - Google Patents

Acoustic device Download PDF

Info

Publication number
EP1133212A3
EP1133212A3 EP01202058A EP01202058A EP1133212A3 EP 1133212 A3 EP1133212 A3 EP 1133212A3 EP 01202058 A EP01202058 A EP 01202058A EP 01202058 A EP01202058 A EP 01202058A EP 1133212 A3 EP1133212 A3 EP 1133212A3
Authority
EP
European Patent Office
Prior art keywords
diaphragm
drive
coupling part
actuator
centre
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.)
Withdrawn
Application number
EP01202058A
Other languages
German (de)
French (fr)
Other versions
EP1133212A2 (en
Inventor
Henry Azima
Nell Harris
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
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 EP1133212A2 publication Critical patent/EP1133212A2/en
Publication of EP1133212A3 publication Critical patent/EP1133212A3/en
Withdrawn legal-status Critical Current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)
  • Surgical Instruments (AREA)
  • Seal Device For Vehicle (AREA)
  • Sink And Installation For Waste Water (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

A loudspeaker drive unit actuator (105) for driving a diaphragm (100) comprising
  • a compliant coupling part (107) adapted to drive the diaphragm (100) pistonically at lower frequencies at a pistonic drive point which is predominantly at the centre of the actuator and
  • a rigid coupling part (109) which is at a location offset from the compliant coupling part and which is adapted to drive the diaphragm to excite resonance in the diaphragm (100) at higher frequencies at a bending wave excitation point which is offset from the centre of the actuator.
EP01202058A 1997-03-04 1998-02-27 Acoustic device Withdrawn EP1133212A3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9704486 1997-03-04
GBGB9704486.1A GB9704486D0 (en) 1997-03-04 1997-03-04 Acoustic devices etc
EP98907080A EP0965245B1 (en) 1997-03-04 1998-02-27 Acoustic device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP98907080A Division EP0965245B1 (en) 1997-03-04 1998-02-27 Acoustic device

Publications (2)

Publication Number Publication Date
EP1133212A2 EP1133212A2 (en) 2001-09-12
EP1133212A3 true EP1133212A3 (en) 2006-01-11

Family

ID=10808687

Family Applications (2)

Application Number Title Priority Date Filing Date
EP98907080A Expired - Lifetime EP0965245B1 (en) 1997-03-04 1998-02-27 Acoustic device
EP01202058A Withdrawn EP1133212A3 (en) 1997-03-04 1998-02-27 Acoustic device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP98907080A Expired - Lifetime EP0965245B1 (en) 1997-03-04 1998-02-27 Acoustic device

Country Status (30)

Country Link
EP (2) EP0965245B1 (en)
JP (1) JP2001513967A (en)
KR (1) KR20000075889A (en)
CN (1) CN1157999C (en)
AR (1) AR011920A1 (en)
AT (1) ATE231677T1 (en)
AU (1) AU735051B2 (en)
BG (1) BG103669A (en)
BR (1) BR9808169A (en)
CA (1) CA2283381A1 (en)
CZ (1) CZ310299A3 (en)
DE (1) DE69810905T2 (en)
EA (1) EA002480B1 (en)
EE (1) EE9900386A (en)
ES (1) ES2191925T3 (en)
GB (1) GB9704486D0 (en)
GE (1) GEP20022748B (en)
HK (1) HK1022398A1 (en)
HU (1) HUP0002652A3 (en)
ID (1) ID20143A (en)
IL (1) IL131485A0 (en)
NO (1) NO994288L (en)
NZ (1) NZ336943A (en)
PL (1) PL335366A1 (en)
SK (1) SK119499A3 (en)
TR (1) TR199902177T2 (en)
TW (1) TW462199B (en)
WO (1) WO1998039947A1 (en)
YU (1) YU39599A (en)
ZA (1) ZA981662B (en)

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
IL140304A0 (en) * 1998-06-22 2002-02-10 Slab Technology Ltd Loudspeakers
GB2360665B (en) * 1998-06-22 2003-01-15 Slab Technology Ltd Loudspeakers
GB9903044D0 (en) * 1999-02-11 1999-03-31 New Transducers Ltd Loudspeakers
GB0029098D0 (en) * 2000-11-30 2001-01-10 New Transducers Ltd Vibration transducer
US6839444B2 (en) 2000-11-30 2005-01-04 New Transducers Limited Loudspeakers
US7120263B2 (en) 2001-03-23 2006-10-10 New Transducers Limited Bending wave acoustic radiator
CN100551133C (en) * 2001-03-23 2009-10-14 新型转换器有限公司 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
GB2387500B (en) * 2003-01-22 2007-03-28 Shelley Katz Apparatus and method for producing sound
EP1775988A1 (en) * 2004-07-30 2007-04-18 Matsushita Electric Industrial Co., Ltd. Speaker system, mobile terminal device, and electronic device
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
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
JP4779526B2 (en) * 2005-09-15 2011-09-28 日本電気株式会社 Panel speaker
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
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
JP4793018B2 (en) * 2006-02-20 2011-10-12 パナソニック株式会社 Diaphragm and speaker using it
KR100883241B1 (en) * 2007-01-31 2009-02-10 욘 싱 인더스트리얼 컴퍼니., 리미티드. Acoustics with full-band monolithic acoustic membranes following the physical properties of sound
DE102007041850A1 (en) * 2007-09-03 2009-03-05 Robert Bosch Gmbh Ultrasonic sensor with a carrier element and a membrane, wherein the membrane is embedded in the carrier element
GB0811015D0 (en) * 2008-06-17 2008-07-23 Deben Acoustics Improved acoustic device
KR101436271B1 (en) 2010-08-23 2014-08-29 노키아 코포레이션 Apparatus and method for providing haptic and audio feedback in a touch sensitive user interface
EP2461220B1 (en) * 2010-12-02 2019-11-06 Montres Breguet SA Acoustic membrane for a musical box or an alarm watch
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
US10639000B2 (en) 2014-04-16 2020-05-05 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
US9615813B2 (en) 2014-04-16 2017-04-11 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 (en) * 2015-09-17 2019-05-29 Robert Bosch Gmbh Acoustic sensor with a membrane and an electroacoustic transducer
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
GB2564061B (en) * 2016-06-27 2020-12-16 Amina Tech Limited Speaker panel
EP3273210B1 (en) * 2016-07-18 2022-05-18 VEGA Grieshaber KG Vibrating level switch and method for producing a vibrating level switch
GB2568282B (en) 2017-11-10 2020-11-25 Amina Tech Limited Flat panel loudspeaker
WO2019200119A1 (en) 2018-04-11 2019-10-17 Bongiovi Acoustics Llc 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
CN112584288B (en) * 2020-12-09 2023-03-14 青岛海信激光显示股份有限公司 Sound production board and projection screen
WO2022121590A1 (en) * 2020-12-09 2022-06-16 青岛海信激光显示股份有限公司 Sound generation board and projection screen
CN113642202A (en) * 2021-06-29 2021-11-12 东风汽车集团股份有限公司 Variable thickness thin plate

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2441981A1 (en) * 1978-11-20 1980-06-13 Sony Corp ELECTRO-ACOUSTIC TRANSDUCER SUCH AS SPEAKER
GB2074812A (en) * 1980-04-21 1981-11-04 Matsushita Electric Ind Co Ltd A method of manufacturing a speaker diaphragm
JPH01311795A (en) * 1988-06-10 1989-12-15 Minebea Co Ltd Diaphragm for speaker
WO1992003024A1 (en) * 1990-08-04 1992-02-20 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Panel-form loudspeaker

Family Cites Families (1)

* 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

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2441981A1 (en) * 1978-11-20 1980-06-13 Sony Corp ELECTRO-ACOUSTIC TRANSDUCER SUCH AS SPEAKER
GB2074812A (en) * 1980-04-21 1981-11-04 Matsushita Electric Ind Co Ltd A method of manufacturing a speaker diaphragm
JPH01311795A (en) * 1988-06-10 1989-12-15 Minebea Co Ltd Diaphragm for speaker
WO1992003024A1 (en) * 1990-08-04 1992-02-20 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Panel-form loudspeaker

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 14, no. 112 (E - 0897) 28 February 1990 (1990-02-28) *

Also Published As

Publication number Publication date
ATE231677T1 (en) 2003-02-15
BG103669A (en) 2000-03-31
EE9900386A (en) 2000-04-17
ZA981662B (en) 1998-09-03
ID20143A (en) 1998-10-08
EA002480B1 (en) 2002-06-27
CN1157999C (en) 2004-07-14
CZ310299A3 (en) 1999-12-15
JP2001513967A (en) 2001-09-04
CA2283381A1 (en) 1998-09-11
KR20000075889A (en) 2000-12-26
EP1133212A2 (en) 2001-09-12
DE69810905T2 (en) 2003-12-24
EP0965245A1 (en) 1999-12-22
SK119499A3 (en) 2000-08-14
GEP20022748B (en) 2002-07-25
TR199902177T2 (en) 2000-01-21
AR011920A1 (en) 2000-09-13
HUP0002652A2 (en) 2000-12-28
AU735051B2 (en) 2001-06-28
YU39599A (en) 2001-12-26
DE69810905D1 (en) 2003-02-27
CN1249892A (en) 2000-04-05
GB9704486D0 (en) 1997-04-23
NO994288D0 (en) 1999-09-03
ES2191925T3 (en) 2003-09-16
EP0965245B1 (en) 2003-01-22
HK1022398A1 (en) 2000-08-04
NO994288L (en) 1999-09-03
BR9808169A (en) 2000-05-16
WO1998039947A1 (en) 1998-09-11
HUP0002652A3 (en) 2001-11-28
TW462199B (en) 2001-11-01
EA199900793A1 (en) 2000-04-24
NZ336943A (en) 2001-02-23
AU6305398A (en) 1998-09-22
IL131485A0 (en) 2001-01-28
PL335366A1 (en) 2000-04-25

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