GB2357215A - Resonant panel loudspeakers - Google Patents

Resonant panel loudspeakers

Info

Publication number
GB2357215A
GB2357215A GB0105807A GB0105807A GB2357215A GB 2357215 A GB2357215 A GB 2357215A GB 0105807 A GB0105807 A GB 0105807A GB 0105807 A GB0105807 A GB 0105807A GB 2357215 A GB2357215 A GB 2357215A
Authority
GB
United Kingdom
Prior art keywords
form member
panel form
housing
annular gap
voice coil
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Withdrawn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
GB0105807A
Other versions
GB0105807D0 (en
Inventor
Henry Azima
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 GB0105807D0 publication Critical patent/GB0105807D0/en
Publication of GB2357215A publication Critical patent/GB2357215A/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Withdrawn legal-status Critical Current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
    • 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.
GB0105807A 1998-10-13 1999-10-12 Resonant panel loudspeakers Withdrawn GB2357215A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9822246.6A GB9822246D0 (en) 1998-10-13 1998-10-13 Loudspeakers
PCT/GB1999/003209 WO2000022877A1 (en) 1998-10-13 1999-10-12 Resonant panel loudspeakers

Publications (2)

Publication Number Publication Date
GB0105807D0 GB0105807D0 (en) 2001-04-25
GB2357215A true GB2357215A (en) 2001-06-13

Family

ID=10840427

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9822246.6A Ceased GB9822246D0 (en) 1996-09-03 1998-10-13 Loudspeakers
GB0105807A Withdrawn GB2357215A (en) 1998-10-13 1999-10-12 Resonant panel loudspeakers

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9822246.6A Ceased GB9822246D0 (en) 1996-09-03 1998-10-13 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
CN1390431A (en) 1999-07-23 2003-01-08 数字声能公司 Flat panel speaker
GB0023134D0 (en) * 2000-09-21 2000-11-01 New Transducers Ltd Loudspeaker driver
US6751329B2 (en) 2000-09-21 2004-06-15 New Transducers Limited Loudspeaker driver
US7120263B2 (en) 2001-03-23 2006-10-10 New Transducers Limited Bending wave acoustic radiator
GB2386790B (en) * 2001-03-23 2004-08-18 New Transducers Ltd 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
WO2004066672A1 (en) * 2003-01-22 2004-08-05 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
EP2301259B1 (en) * 2008-07-17 2020-05-13 Tectonic Audio Labs Inc. 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

Citations (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
WO1993011649A1 (en) * 1991-11-25 1993-06-10 Transducer Valley, Inc. Loudspeaker
WO1997009842A2 (en) * 1995-09-02 1997-03-13 New Transducers Limited Acoustic device
WO1998031188A1 (en) * 1997-01-09 1998-07-16 New Transducers Limited Loudspeakers
WO1998034320A2 (en) * 1997-01-31 1998-08-06 New Transducers Limited Electro-dynamic inertial vibration exciter
EP0969691A1 (en) * 1998-01-16 2000-01-05 Sony Corporation Speaker and electronic apparatus using speaker

Patent Citations (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
WO1993011649A1 (en) * 1991-11-25 1993-06-10 Transducer Valley, Inc. Loudspeaker
WO1997009842A2 (en) * 1995-09-02 1997-03-13 New Transducers Limited Acoustic device
WO1998031188A1 (en) * 1997-01-09 1998-07-16 New Transducers Limited Loudspeakers
WO1998034320A2 (en) * 1997-01-31 1998-08-06 New Transducers Limited Electro-dynamic inertial vibration exciter
EP0969691A1 (en) * 1998-01-16 2000-01-05 Sony Corporation Speaker and electronic apparatus using speaker

Also Published As

Publication number Publication date
JP2002528019A (en) 2002-08-27
BR9914147A (en) 2001-06-26
GB9822246D0 (en) 1998-12-09
TW462206B (en) 2001-11-01
CA2345749A1 (en) 2000-04-20
WO2000022877A1 (en) 2000-04-20
ZA200101978B (en) 2001-09-11
KR20010075442A (en) 2001-08-09
WO2000022877A8 (en) 2000-05-25
AU6213999A (en) 2000-05-01
CN1319320A (en) 2001-10-24
GB0105807D0 (en) 2001-04-25
EP1121833A1 (en) 2001-08-08
IL141966A0 (en) 2002-03-10

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