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NO994288L - Acoustic device - Google Patents

Acoustic device

Info

Publication number
NO994288L
NO994288L NO994288A NO994288A NO994288L NO 994288 L NO994288 L NO 994288L NO 994288 A NO994288 A NO 994288A NO 994288 A NO994288 A NO 994288A NO 994288 L NO994288 L NO 994288L
Authority
NO
Norway
Prior art keywords
acoustic
parts
effect
bending
surface distribution
Prior art date
Application number
NO994288A
Other languages
Norwegian (no)
Other versions
NO994288D0 (en
Inventor
Henry Azima
Martin Colloms
Neil Harris
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 NO994288L publication Critical patent/NO994288L/en
Publication of NO994288D0 publication Critical patent/NO994288D0/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
    • H04R7/06—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

Akustiske innretninger har deler som strekker seg på tvers av tykkelsen og er i stand til å tåle bøyningsbølger som forårsaker derav følgende akustisk virk- ning som følge av flatefordeling av resonansmodi av naturlig bøyningsbølge- vibrasjon i harmoni med forlangt, opp- nåelig akustisk virkning av den nevnte del over et ønsket operativt, akustisk frekvensområde. Flatefordeling av stiv- het omfattende variasjon eller varia- sjoner av denne benyttes til å oppnå ønskede beliggenheter for bøyningsbøl- getransdusere og/eller god akustisk resonansmodusvirkning ut fra iboende ugunstige former på delene. Det demonst- reres også deler med kombinert stempel- virkningsdrift og bøyningsbølgeeksita- sjon ved sentra for masse og geometri.Acoustic devices have parts which extend across the thickness and are able to withstand bending waves which cause the resulting acoustic effect as a result of surface distribution of resonant modes of natural bending wave vibration in harmony with the desired, attainable acoustic effect of it. said portion over a desired operative acoustic frequency range. Surface distribution of stiffness, including variation or variations thereof, is used to obtain desired locations for bending waveguide transducers and / or good acoustic resonance mode effect from inherent adverse shapes of the parts. Parts with combined piston action operation and flexural wave excitation at mass and geometry centers are also demonstrated.

NO994288A 1997-03-04 1999-09-03 Acoustic device NO994288D0 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
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 (2)

Publication Number Publication Date
NO994288L true NO994288L (en) 1999-09-03
NO994288D0 NO994288D0 (en) 1999-09-03

Family

ID=10808687

Family Applications (1)

Application Number Title Priority Date Filing Date
NO994288A NO994288D0 (en) 1997-03-04 1999-09-03 Acoustic device

Country Status (29)

Country Link
EP (2) EP1133212A3 (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)
HU (1) HUP0002652A3 (en)
ID (1) ID20143A (en)
IL (1) IL131485A0 (en)
NO (1) NO994288D0 (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 (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9818959D0 (en) * 1998-09-02 1998-10-21 New Transducers Ltd Panelform loudspeaker
GB9806994D0 (en) * 1998-04-02 1998-06-03 New Transducers Ltd Acoustic device
GB2360665B (en) * 1998-06-22 2003-01-15 Slab Technology Ltd Loudspeakers
GB2351868B (en) * 1998-06-22 2001-08-29 Slab Technology Ltd Loudspeakers
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
US7120263B2 (en) 2001-03-23 2006-10-10 New Transducers Limited Bending wave acoustic radiator
WO2002078391A2 (en) * 2001-03-23 2002-10-03 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
JP2006513656A (en) * 2003-01-22 2006-04-20 カッツ，シェレィ Apparatus and method for generating sound
WO2006011604A1 (en) * 2004-07-30 2006-02-02 Matsushita Electric Industrial Co., Ltd. Loudspeaker system, mobile terminal device, an electronic device
US8284955B2 (en) 2006-02-07 2012-10-09 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
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
JP4779526B2 (en) * 2005-09-15 2011-09-28 日本電気株式会社 Panel speaker
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
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
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
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
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
CN103154857B (en) 2010-08-23 2019-03-15 诺基亚技术有限公司 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
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
US10639000B2 (en) 2014-04-16 2020-05-05 Bongiovi Acoustics Llc Device for wide-band auscultation
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
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
GB2564061B (en) * 2016-06-27 2020-12-16 Amina Tech Limited Speaker panel
GB2551723B (en) 2016-06-27 2018-11-28 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
US11211043B2 (en) 2018-04-11 2021-12-28 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
CN112102717B (en) * 2019-06-17 2023-10-20 海信视像科技股份有限公司 Display device and soundable 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
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
CN113642202A (en) * 2021-06-29 2021-11-12 东风汽车集团股份有限公司 Variable thickness thin plate

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 Industrial Co Ltd Method of manufacturing a speaker diaphragm
JPH01311795A (en) * 1988-06-10 1989-12-15 Minebea Co Ltd Diaphragm for speaker
JP3034952B2 (en) * 1990-08-04 2000-04-17 イギリス国 Panel type speaker
UA51671C2 (en) * 1995-09-02 2002-12-16 Нью Транзд'Юсез Лімітед Acoustic device

Also Published As

Publication number Publication date
AU6305398A (en) 1998-09-22
EP0965245B1 (en) 2003-01-22
EA002480B1 (en) 2002-06-27
ZA981662B (en) 1998-09-03
HUP0002652A2 (en) 2000-12-28
GEP20022748B (en) 2002-07-25
ATE231677T1 (en) 2003-02-15
EE9900386A (en) 2000-04-17
ES2191925T3 (en) 2003-09-16
PL335366A1 (en) 2000-04-25
EP0965245A1 (en) 1999-12-22
CZ310299A3 (en) 1999-12-15
ID20143A (en) 1998-10-08
BR9808169A (en) 2000-05-16
HUP0002652A3 (en) 2001-11-28
TR199902177T2 (en) 2000-01-21
BG103669A (en) 2000-03-31
NZ336943A (en) 2001-02-23
CN1157999C (en) 2004-07-14
NO994288D0 (en) 1999-09-03
EP1133212A3 (en) 2006-01-11
AU735051B2 (en) 2001-06-28
DE69810905T2 (en) 2003-12-24
SK119499A3 (en) 2000-08-14
KR20000075889A (en) 2000-12-26
WO1998039947A1 (en) 1998-09-11
DE69810905D1 (en) 2003-02-27
AR011920A1 (en) 2000-09-13
IL131485A0 (en) 2001-01-28
CA2283381A1 (en) 1998-09-11
EP1133212A2 (en) 2001-09-12
JP2001513967A (en) 2001-09-04
TW462199B (en) 2001-11-01
HK1022398A1 (en) 2000-08-04
CN1249892A (en) 2000-04-05
EA199900793A1 (en) 2000-04-24
GB9704486D0 (en) 1997-04-23
YU39599A (en) 2001-12-26

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