DE69911545T2 - Bass-reflex-lautsprechersystem - Google Patents
Bass-reflex-lautsprechersystem Download PDFInfo
- Publication number
- DE69911545T2 DE69911545T2 DE69911545T DE69911545T DE69911545T2 DE 69911545 T2 DE69911545 T2 DE 69911545T2 DE 69911545 T DE69911545 T DE 69911545T DE 69911545 T DE69911545 T DE 69911545T DE 69911545 T2 DE69911545 T2 DE 69911545T2
- Authority
- DE
- Germany
- Prior art keywords
- channel
- holes
- bass reflex
- speaker system
- present
- 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
Links
- 230000011514 reflex Effects 0.000 claims description 25
- 239000006261 foam material Substances 0.000 claims description 12
- 239000011343 solid material Substances 0.000 claims description 2
- 239000006260 foam Substances 0.000 description 9
- 238000005259 measurement Methods 0.000 description 6
- 230000009467 reduction Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- -1 for example Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 230000001007 puffing effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
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
- H04R1/2807—Enclosures comprising vibrating or resonating arrangements
- H04R1/2815—Enclosures comprising vibrating or resonating arrangements of the bass reflex type
- H04R1/2823—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material
- H04R1/2826—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material 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)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP98201777 | 1998-05-27 | ||
| EP98201777 | 1998-05-27 | ||
| PCT/IB1999/000940 WO1999062292A1 (en) | 1998-05-27 | 1999-05-25 | Loudspeaker system having a bass-reflex port |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69911545D1 DE69911545D1 (de) | 2003-10-30 |
| DE69911545T2 true DE69911545T2 (de) | 2004-06-03 |
Family
ID=8233770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69911545T Expired - Fee Related DE69911545T2 (de) | 1998-05-27 | 1999-05-25 | Bass-reflex-lautsprechersystem |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6275597B1 (enExample) |
| EP (1) | EP1000525B1 (enExample) |
| JP (1) | JP2002517148A (enExample) |
| DE (1) | DE69911545T2 (enExample) |
| WO (1) | WO1999062292A1 (enExample) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60045547D1 (de) * | 1999-03-03 | 2011-03-03 | Onkyo Kk | Lautsprechersystem |
| FR2824990B1 (fr) * | 2001-05-15 | 2003-09-26 | Jean Pierre Morkerken | Emetteur de son et haut-parleur |
| US7269270B2 (en) * | 2002-10-17 | 2007-09-11 | Bose Corporation | Standing wave reducing |
| US6973994B2 (en) * | 2002-11-04 | 2005-12-13 | Mackin Ian J | Apparatus for increasing the quality of sound from an acoustic source |
| US20050072624A1 (en) * | 2003-10-06 | 2005-04-07 | Lg Electronics Inc. | Speaker |
| US7463744B2 (en) * | 2003-10-31 | 2008-12-09 | Bose Corporation | Porting |
| GB0328639D0 (en) * | 2003-12-10 | 2004-01-14 | Mitel Networks Corp | Loudspeaker enclosure incorporating a leak to compensate for the effect of acoustic modes on loudspeaker frequency response |
| US8098867B2 (en) * | 2006-11-30 | 2012-01-17 | Motorola Mobility, Inc. | Attachable external acoustic chamber for a mobile device |
| US8180075B2 (en) * | 2007-04-26 | 2012-05-15 | Motorola Mobility, Inc. | Arrangement for variable bass reflex cavities |
| US20080285762A1 (en) * | 2007-05-15 | 2008-11-20 | Keiichi Iwamoto | Point source speaker systems |
| US7928303B2 (en) * | 2008-02-28 | 2011-04-19 | Riley Investments LLC | Insert for cajon drum |
| DE102009046889A1 (de) | 2009-11-19 | 2011-07-21 | K+H Vertriebs- und Entwicklungsgesellschaft mbH, 30900 | Lautsprechereinheit |
| US20110176701A1 (en) * | 2010-01-16 | 2011-07-21 | Collins William E | Autoaugmented Speaker Port |
| US8333261B2 (en) * | 2010-08-25 | 2012-12-18 | Barnes Ryan L | Compact subwoofer cabinet |
| GB2488758A (en) * | 2011-03-02 | 2012-09-12 | Gp Acoustics Uk Ltd | Bass reflex loudspeaker has acoustic leakage in walls of port duct |
| US20120247866A1 (en) * | 2011-03-31 | 2012-10-04 | Lage Antonio M | Acoustic Noise Reducing |
| US8816178B2 (en) * | 2012-05-16 | 2014-08-26 | Philip S. GELB | System of removing overtones and rings in a drum set |
| US9173018B2 (en) | 2012-06-27 | 2015-10-27 | Bose Corporation | Acoustic filter |
| FR2994519B1 (fr) * | 2012-08-07 | 2015-09-25 | Nexo | Enceinte bass-reflex a event echancre |
| US10341750B2 (en) * | 2015-06-15 | 2019-07-02 | Logitech Europe S.A. | Pressure equalization audio speaker design |
| JP6888625B2 (ja) * | 2016-07-07 | 2021-06-16 | ヤマハ株式会社 | バスレフポートおよび音響装置 |
| WO2020208342A1 (en) | 2019-04-09 | 2020-10-15 | Flare Audio Technologies Limited | Acoustic devices |
| WO2020219441A1 (en) * | 2019-04-23 | 2020-10-29 | Polk Audio Llc | Loudspeaker system, method and apparatus for absorbing loudspeaker acoustic resonances |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4756382A (en) * | 1987-03-02 | 1988-07-12 | Hudson Iii Joseph L | Loudspeaker having enhanced response at bass frequencies |
| US5012890A (en) * | 1988-03-23 | 1991-05-07 | Yamaha Corporation | Acoustic apparatus |
| US5109422A (en) | 1988-09-28 | 1992-04-28 | Yamaha Corporation | Acoustic apparatus |
| JP2769738B2 (ja) * | 1990-04-27 | 1998-06-25 | パイオニア株式会社 | スピーカ装置 |
| JPH04114598A (ja) * | 1990-09-04 | 1992-04-15 | Sharp Corp | バスレフ型スピーカー装置 |
| US5892183A (en) | 1997-07-26 | 1999-04-06 | U.S. Philips Corporation | Loudspeaker system having a bass-reflex port |
-
1999
- 1999-05-24 US US09/316,982 patent/US6275597B1/en not_active Expired - Fee Related
- 1999-05-25 DE DE69911545T patent/DE69911545T2/de not_active Expired - Fee Related
- 1999-05-25 JP JP2000551574A patent/JP2002517148A/ja not_active Abandoned
- 1999-05-25 EP EP99919482A patent/EP1000525B1/en not_active Expired - Lifetime
- 1999-05-25 WO PCT/IB1999/000940 patent/WO1999062292A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE69911545D1 (de) | 2003-10-30 |
| EP1000525B1 (en) | 2003-09-24 |
| WO1999062292A1 (en) | 1999-12-02 |
| JP2002517148A (ja) | 2002-06-11 |
| US6275597B1 (en) | 2001-08-14 |
| EP1000525A1 (en) | 2000-05-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8320 | Willingness to grant licences declared (paragraph 23) | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |