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GB2403093B - Improvements in loudspeakers - Google Patents

Improvements in loudspeakers

Info

Publication number
GB2403093B
GB2403093B GB0423588A GB0423588A GB2403093B GB 2403093 B GB2403093 B GB 2403093B GB 0423588 A GB0423588 A GB 0423588A GB 0423588 A GB0423588 A GB 0423588A GB 2403093 B GB2403093 B GB 2403093B
Authority
GB
United Kingdom
Prior art keywords
loudspeakers
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
GB0423588A
Other versions
GB2403093A (en
GB0423588D0 (en
Inventor
Mark Alexander Dodd
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.)
KH Technology Corp
Original Assignee
KH Technology Corp
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 KH Technology Corp filed Critical KH Technology Corp
Publication of GB0423588D0 publication Critical patent/GB0423588D0/en
Publication of GB2403093A publication Critical patent/GB2403093A/en
Application granted granted Critical
Publication of GB2403093B publication Critical patent/GB2403093B/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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2869—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself
    • H04R1/2876—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding
    • H04R1/288—Reduction of undesired resonances, i.e. standing waves within enclosure, or of undesired vibrations, i.e. of the enclosure itself by means of damping material, e.g. as cladding for loudspeaker transducers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Separation Of Gases By Adsorption (AREA)
GB0423588A 2002-05-24 2003-05-23 Improvements in loudspeakers Expired - Fee Related GB2403093B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0211977A GB0211977D0 (en) 2002-05-24 2002-05-24 Improvements in loudspeakers
PCT/GB2003/002243 WO2003101147A1 (en) 2002-05-24 2003-05-23 Improvements in loudspeakers

Publications (3)

Publication Number Publication Date
GB0423588D0 GB0423588D0 (en) 2004-11-24
GB2403093A GB2403093A (en) 2004-12-22
GB2403093B true GB2403093B (en) 2005-06-15

Family

ID=9937345

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0211977A Ceased GB0211977D0 (en) 2002-05-24 2002-05-24 Improvements in loudspeakers
GB0423588A Expired - Fee Related GB2403093B (en) 2002-05-24 2003-05-23 Improvements in loudspeakers

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0211977A Ceased GB0211977D0 (en) 2002-05-24 2002-05-24 Improvements in loudspeakers

Country Status (3)

Country Link
AU (1) AU2003234023A1 (en)
GB (2) GB0211977D0 (en)
WO (1) WO2003101147A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140064540A1 (en) 2012-08-31 2014-03-06 Bose Corporation Loudspeaker System
US8794373B1 (en) 2013-03-15 2014-08-05 Bose Corporation Three-dimensional air-adsorbing structure

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4054367B2 (en) * 2005-03-17 2008-02-27 松下電器産業株式会社 Speaker device
WO2009014015A1 (en) 2007-07-20 2009-01-29 Kuraray Chemical Co., Ltd. Material for speaker device and speaker device using it
JP4989342B2 (en) * 2007-07-20 2012-08-01 クラレケミカル株式会社 Speaker device material and speaker device using the same
US8630435B2 (en) 2008-08-08 2014-01-14 Nokia Corporation Apparatus incorporating an adsorbent material, and methods of making same
US8292023B2 (en) 2009-02-13 2012-10-23 Nokia Corporation Enclosing adsorbent material
EP2577985B1 (en) 2010-06-01 2019-05-15 Nokia Technologies Oy Radio apparatus comprising an agglomeration of adsorbing members and corresponding method
CN104581499A (en) * 2013-10-23 2015-04-29 宏碁股份有限公司 Speaker structure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2797766A (en) * 1953-10-20 1957-07-02 David Bogen & Company Inc Louid speaker
US3302748A (en) * 1963-04-11 1967-02-07 Prentiss B Reed Loudspeaker system
WO1984003600A1 (en) * 1983-03-02 1984-09-13 Brian Douglas Ward Constant pressure device
US5853690A (en) * 1996-02-28 1998-12-29 Toyota Jidosha Kabushiki Kaisha Method for decomposing water using an activated carbon catalyst

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2797766A (en) * 1953-10-20 1957-07-02 David Bogen & Company Inc Louid speaker
US3302748A (en) * 1963-04-11 1967-02-07 Prentiss B Reed Loudspeaker system
WO1984003600A1 (en) * 1983-03-02 1984-09-13 Brian Douglas Ward Constant pressure device
US5853690A (en) * 1996-02-28 1998-12-29 Toyota Jidosha Kabushiki Kaisha Method for decomposing water using an activated carbon catalyst

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140064540A1 (en) 2012-08-31 2014-03-06 Bose Corporation Loudspeaker System
US8687836B2 (en) 2012-08-31 2014-04-01 Bose Corporation Loudspeaker system
US8794373B1 (en) 2013-03-15 2014-08-05 Bose Corporation Three-dimensional air-adsorbing structure
US9232299B2 (en) 2013-03-15 2016-01-05 Bose Corporation Three-dimensional air-adsorbing structure

Also Published As

Publication number Publication date
WO2003101147A1 (en) 2003-12-04
AU2003234023A1 (en) 2003-12-12
GB2403093A (en) 2004-12-22
GB0423588D0 (en) 2004-11-24
GB0211977D0 (en) 2002-07-03

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Legal Events

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

Effective date: 20090523