GB2392579B - Acoustic device - Google Patents

Acoustic device

Info

Publication number
GB2392579B
GB2392579B GB0329569A GB0329569A GB2392579B GB 2392579 B GB2392579 B GB 2392579B GB 0329569 A GB0329569 A GB 0329569A GB 0329569 A GB0329569 A GB 0329569A GB 2392579 B GB2392579 B GB 2392579B
Authority
GB
United Kingdom
Prior art keywords
acoustic device
acoustic
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.)
Expired - Fee Related
Application number
GB0329569A
Other versions
GB0329569D0 (en
GB2392579A (en
Inventor
Neil Harris
Bijan Djahansouzi
Mark Richard Eccles
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 GB0329569D0 publication Critical patent/GB0329569D0/en
Publication of GB2392579A publication Critical patent/GB2392579A/en
Application granted granted Critical
Publication of GB2392579B publication Critical patent/GB2392579B/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)
  • Stringed Musical Instruments (AREA)
  • Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
  • Road Signs Or Road Markings (AREA)
  • Building Environments (AREA)
GB0329569A 2001-07-26 2002-07-24 Acoustic device Expired - Fee Related GB2392579B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0118206A GB0118206D0 (en) 2001-07-26 2001-07-26 Acoustic panels
PCT/GB2002/003389 WO2003013180A2 (en) 2001-07-26 2002-07-24 Acoustic device

Publications (3)

Publication Number Publication Date
GB0329569D0 GB0329569D0 (en) 2004-01-28
GB2392579A GB2392579A (en) 2004-03-03
GB2392579B true GB2392579B (en) 2004-11-03

Family

ID=9919215

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0118206A Ceased GB0118206D0 (en) 2001-07-26 2001-07-26 Acoustic panels
GB0329569A Expired - Fee Related GB2392579B (en) 2001-07-26 2002-07-24 Acoustic device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0118206A Ceased GB0118206D0 (en) 2001-07-26 2001-07-26 Acoustic panels

Country Status (6)

Country Link
CN (1) CN1526258A (en)
AU (1) AU2002317391A1 (en)
GB (2) GB0118206D0 (en)
HK (1) HK1062253A1 (en)
TW (1) TW561788B (en)
WO (1) WO2003013180A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009516460A (en) * 2005-11-14 2009-04-16 エヌエックスピー ビー ヴィ Asymmetric movable system of piezoelectric speaker and asymmetric speaker

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999041939A1 (en) * 1998-02-10 1999-08-19 New Transducers Limited Acoustic device comprising a panel member relying on bending wave action
WO2001054450A2 (en) * 2000-01-24 2001-07-26 New Transducers Limited Transducer in particularly for use in acoustic devices

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999041939A1 (en) * 1998-02-10 1999-08-19 New Transducers Limited Acoustic device comprising a panel member relying on bending wave action
WO2001054450A2 (en) * 2000-01-24 2001-07-26 New Transducers Limited Transducer in particularly for use in acoustic devices

Also Published As

Publication number Publication date
GB0118206D0 (en) 2001-09-19
GB0329569D0 (en) 2004-01-28
CN1526258A (en) 2004-09-01
WO2003013180A2 (en) 2003-02-13
TW561788B (en) 2003-11-11
GB2392579A (en) 2004-03-03
AU2002317391A1 (en) 2003-02-17
HK1062253A1 (en) 2004-10-21
WO2003013180A3 (en) 2003-10-30

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