GB2368486A - Loudspeaker - Google Patents

Loudspeaker

Info

Publication number
GB2368486A
GB2368486A GB0204303A GB0204303A GB2368486A GB 2368486 A GB2368486 A GB 2368486A GB 0204303 A GB0204303 A GB 0204303A GB 0204303 A GB0204303 A GB 0204303A GB 2368486 A GB2368486 A GB 2368486A
Authority
GB
United Kingdom
Prior art keywords
panel
exciters
bending waves
loudspeaker
produce
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.)
Granted
Application number
GB0204303A
Other versions
GB0204303D0 (en
GB2368486B (en
Inventor
Graham Bank
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 GB0204303D0 publication Critical patent/GB0204303D0/en
Publication of GB2368486A publication Critical patent/GB2368486A/en
Application granted granted Critical
Publication of GB2368486B publication Critical patent/GB2368486B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04R7/045—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

Loudspeaker system comprising a panel capable of supporting bending waves and two exciters mounted on the panel for exciting bending waves in the panel to produce an acoustic output, each of said two exciters being adapted for connection to respective independent sources of drive signals.
GB0204303A 2000-08-11 2001-08-06 Loudspeaker Expired - Fee Related GB2368486B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0019701A GB0019701D0 (en) 2000-08-11 2000-08-11 Loudspeaker
PCT/GB2001/003520 WO2002015638A2 (en) 2000-08-11 2001-08-06 Loudspeaker using a plurality of exciters

Publications (3)

Publication Number Publication Date
GB0204303D0 GB0204303D0 (en) 2002-04-10
GB2368486A true GB2368486A (en) 2002-05-01
GB2368486B GB2368486B (en) 2004-03-03

Family

ID=9897380

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0019701A Ceased GB0019701D0 (en) 2000-08-11 2000-08-11 Loudspeaker
GB0204303A Expired - Fee Related GB2368486B (en) 2000-08-11 2001-08-06 Loudspeaker

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0019701A Ceased GB0019701D0 (en) 2000-08-11 2000-08-11 Loudspeaker

Country Status (3)

Country Link
AU (1) AU2001276512A1 (en)
GB (2) GB0019701D0 (en)
WO (1) WO2002015638A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2427320A (en) * 2005-06-14 2006-12-20 Amina Technologies Ltd Bending wave loudspeaker driven from multiple, different sources

Family Cites Families (4)

* 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
JP4173283B2 (en) * 1998-01-20 2008-10-29 ニュー トランスデューサーズ リミテッド Active acoustic device with panel member
GB9818719D0 (en) * 1998-08-28 1998-10-21 New Transducers Ltd Vubration exciter
GB9826164D0 (en) * 1998-11-30 1999-01-20 New Transducers Ltd Acoustic devices

Also Published As

Publication number Publication date
WO2002015638A3 (en) 2002-11-14
GB0204303D0 (en) 2002-04-10
GB2368486B (en) 2004-03-03
GB0019701D0 (en) 2000-09-27
WO2002015638A2 (en) 2002-02-21
AU2001276512A1 (en) 2002-02-25

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20050806