AU2003234023A1 - Improvements in loudspeakers - Google Patents
Improvements in loudspeakersInfo
- Publication number
- AU2003234023A1 AU2003234023A1 AU2003234023A AU2003234023A AU2003234023A1 AU 2003234023 A1 AU2003234023 A1 AU 2003234023A1 AU 2003234023 A AU2003234023 A AU 2003234023A AU 2003234023 A AU2003234023 A AU 2003234023A AU 2003234023 A1 AU2003234023 A1 AU 2003234023A1
- Authority
- AU
- Australia
- 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.)
- Abandoned
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)
- Separation Of Gases By Adsorption (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0211977.4 | 2002-05-24 | ||
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 (1)
Publication Number | Publication Date |
---|---|
AU2003234023A1 true AU2003234023A1 (en) | 2003-12-12 |
Family
ID=9937345
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2003234023A Abandoned AU2003234023A1 (en) | 2002-05-24 | 2003-05-23 | Improvements in loudspeakers |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2003234023A1 (en) |
GB (2) | GB0211977D0 (en) |
WO (1) | WO2003101147A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006098158A1 (en) | 2005-03-17 | 2006-09-21 | Matsushita Electric Industrial Co., Ltd. | Speaker device |
EP2073569B1 (en) | 2007-07-20 | 2014-05-07 | 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 |
US9430998B2 (en) | 2010-06-01 | 2016-08-30 | Nokia Technologies Oy | Radio apparatus comprising an agglomeration of acoustically adsorbing members |
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 |
CN104581499A (en) * | 2013-10-23 | 2015-04-29 | 宏碁股份有限公司 | Loudspeaker box structure |
Family Cites Families (4)
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 |
US4657108A (en) * | 1983-03-02 | 1987-04-14 | Ward Brian D | Constant pressure device |
JPH09225299A (en) * | 1996-02-28 | 1997-09-02 | Toyota Motor Corp | Activated carbon |
-
2002
- 2002-05-24 GB GB0211977A patent/GB0211977D0/en not_active Ceased
-
2003
- 2003-05-23 AU AU2003234023A patent/AU2003234023A1/en not_active Abandoned
- 2003-05-23 GB GB0423588A patent/GB2403093B/en not_active Expired - Fee Related
- 2003-05-23 WO PCT/GB2003/002243 patent/WO2003101147A1/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
GB0211977D0 (en) | 2002-07-03 |
GB2403093B (en) | 2005-06-15 |
WO2003101147A1 (en) | 2003-12-04 |
GB0423588D0 (en) | 2004-11-24 |
GB2403093A (en) | 2004-12-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MK6 | Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase |