WO2000022877A8 - Resonant panel loudspeakers - Google Patents

Resonant panel loudspeakers

Info

Publication number
WO2000022877A8
WO2000022877A8 PCT/GB1999/003209 GB9903209W WO0022877A8 WO 2000022877 A8 WO2000022877 A8 WO 2000022877A8 GB 9903209 W GB9903209 W GB 9903209W WO 0022877 A8 WO0022877 A8 WO 0022877A8
Authority
WO
WIPO (PCT)
Prior art keywords
form member
panel form
housing
annular gap
voice coil
Prior art date
Application number
PCT/GB1999/003209
Other languages
French (fr)
Other versions
WO2000022877A1 (en
Inventor
Henry Azima
Original Assignee
New Transducers Ltd
Henry Azima
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
Priority to KR1020017003992A priority Critical patent/KR20010075442A/en
Application filed by New Transducers Ltd, Henry Azima filed Critical New Transducers Ltd
Priority to JP2000576669A priority patent/JP2002528019A/en
Priority to AU62139/99A priority patent/AU6213999A/en
Priority to EP99949152A priority patent/EP1121833A1/en
Priority to BR9914147-7A priority patent/BR9914147A/en
Priority to IL14196699A priority patent/IL141966A0/en
Priority to GB0105807A priority patent/GB2357215A/en
Priority to CA002345749A priority patent/CA2345749A1/en
Publication of WO2000022877A1 publication Critical patent/WO2000022877A1/en
Publication of WO2000022877A8 publication Critical patent/WO2000022877A8/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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • 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
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands
    • 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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil

Abstract

A mid/high frequency loudspeaker drive unit comprising a stiff lightweight resonant panel form member, a housing in which the panel form member is mounted, a resilient suspension connected between the edges of the panel form member and the housing, the arrangement being such that the housing and the panel form member together define a sealed enclosure, and an electrodynamic exciter for applying bending wave energy to the panel form member to cause it to resonate to produce an acoustic output, the exciter comprising a magnet assembly rigidly fixed to the housing and defining an annular gap and a voice coil disposed in the annular gap and rigidly fixed to the panel form member near to the geometric centre thereof, the location of the voice coil in the annular gap being provided by the said resilient suspension.
PCT/GB1999/003209 1998-10-13 1999-10-12 Resonant panel loudspeakers WO2000022877A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
KR1020017003992A KR20010075442A (en) 1998-10-13 1999-09-12 Loudspeakers
JP2000576669A JP2002528019A (en) 1998-10-13 1999-10-12 Loudspeaker
AU62139/99A AU6213999A (en) 1998-10-13 1999-10-12 Loudspeakers
EP99949152A EP1121833A1 (en) 1998-10-13 1999-10-12 Resonant panel loudspeakers
BR9914147-7A BR9914147A (en) 1998-10-13 1999-10-12 Loudspeakers
IL14196699A IL141966A0 (en) 1998-10-13 1999-10-12 Loudspeakers
GB0105807A GB2357215A (en) 1998-10-13 1999-10-12 Resonant panel loudspeakers
CA002345749A CA2345749A1 (en) 1998-10-13 1999-10-12 Loudspeakers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9822246.6A GB9822246D0 (en) 1998-10-13 1998-10-13 Loudspeakers
GB9822246.6 1998-10-13

Publications (2)

Publication Number Publication Date
WO2000022877A1 WO2000022877A1 (en) 2000-04-20
WO2000022877A8 true WO2000022877A8 (en) 2000-05-25

Family

ID=10840427

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1999/003209 WO2000022877A1 (en) 1998-10-13 1999-10-12 Resonant panel loudspeakers

Country Status (12)

Country Link
EP (1) EP1121833A1 (en)
JP (1) JP2002528019A (en)
KR (1) KR20010075442A (en)
CN (1) CN1319320A (en)
AU (1) AU6213999A (en)
BR (1) BR9914147A (en)
CA (1) CA2345749A1 (en)
GB (2) GB9822246D0 (en)
IL (1) IL141966A0 (en)
TW (1) TW462206B (en)
WO (1) WO2000022877A1 (en)
ZA (1) ZA200101978B (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001008447A2 (en) 1999-07-23 2001-02-01 Digital Sonics, Llc Flat panel speaker
US6751329B2 (en) 2000-09-21 2004-06-15 New Transducers Limited Loudspeaker driver
GB0023134D0 (en) * 2000-09-21 2000-11-01 New Transducers Ltd Loudspeaker driver
GB2386790B (en) * 2001-03-23 2004-08-18 New Transducers Ltd 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
US7062051B2 (en) 2001-08-17 2006-06-13 New Transducers Limited Acoustic device
AU2003202084A1 (en) * 2003-01-22 2004-08-13 Shelley Katz Apparatus and method for producing sound
DE10326761A1 (en) * 2003-06-13 2005-01-27 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. speaker
JP2006279284A (en) * 2005-03-28 2006-10-12 Kenwood Corp Screen speaker
JP2007322606A (en) * 2006-05-31 2007-12-13 Kawai Musical Instr Mfg Co Ltd Musical sound device and production method for musical sound device
JP2009260763A (en) * 2008-04-18 2009-11-05 Panasonic Corp Flat speaker
GB0811015D0 (en) 2008-06-17 2008-07-23 Deben Acoustics Improved acoustic device
US8494208B2 (en) 2008-07-17 2013-07-23 New Transducers Limited Inertial vibration exciter
CN101674517B (en) * 2009-09-25 2012-08-29 广东长虹电子有限公司 Acoustic generating device
JP5909169B2 (en) * 2012-09-25 2016-04-26 京セラ株式会社 SOUND GENERATOR, SOUND GENERATOR, AND ELECTRONIC DEVICE
GB2568282B (en) * 2017-11-10 2020-11-25 Amina Tech Limited Flat panel loudspeaker
KR102625724B1 (en) 2018-10-05 2024-01-15 엘지디스플레이 주식회사 Display apparatus
FR3110162B1 (en) * 2020-05-13 2022-05-27 Saint Gobain Glazing with audio exciter

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
US4284167A (en) * 1979-06-04 1981-08-18 Electronic Research Assoc., Inc. Sound reproducing device
US4928312A (en) * 1988-10-17 1990-05-22 Amel Hill Acoustic transducer
FI94203C (en) * 1991-11-25 1995-07-25 Anturilaakso Oy Speaker
UA51671C2 (en) * 1995-09-02 2002-12-16 Нью Транзд'Юсез Лімітед Acoustic device
GB9701983D0 (en) * 1997-01-31 1997-03-19 New Transducers Ltd Electro-dynamic exciter
PL334440A1 (en) * 1997-01-09 2000-02-28 New Transducers Ltd Loudspeaker
WO1999037118A1 (en) * 1998-01-16 1999-07-22 Sony Corporation Speaker and electronic apparatus using speaker

Also Published As

Publication number Publication date
CA2345749A1 (en) 2000-04-20
CN1319320A (en) 2001-10-24
AU6213999A (en) 2000-05-01
EP1121833A1 (en) 2001-08-08
ZA200101978B (en) 2001-09-11
WO2000022877A1 (en) 2000-04-20
GB2357215A (en) 2001-06-13
GB0105807D0 (en) 2001-04-25
KR20010075442A (en) 2001-08-09
BR9914147A (en) 2001-06-26
JP2002528019A (en) 2002-08-27
IL141966A0 (en) 2002-03-10
GB9822246D0 (en) 1998-12-09
TW462206B (en) 2001-11-01

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