AU6003700A - Loudspeaker - Google Patents
LoudspeakerInfo
- Publication number
- AU6003700A AU6003700A AU60037/00A AU6003700A AU6003700A AU 6003700 A AU6003700 A AU 6003700A AU 60037/00 A AU60037/00 A AU 60037/00A AU 6003700 A AU6003700 A AU 6003700A AU 6003700 A AU6003700 A AU 6003700A
- Authority
- AU
- Australia
- Prior art keywords
- panel
- cavity
- duct
- loudspeaker
- resonance frequency
- 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
- 238000005452 bending Methods 0.000 abstract 1
- 238000013016 damping Methods 0.000 abstract 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
- H04R1/2853—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line
- H04R1/2857—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line for loudspeaker transducers
-
- 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
- H04R1/283—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm
- H04R1/2834—Enclosures comprising vibrating or resonating arrangements using a passive diaphragm for loudspeaker transducers
-
- 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
-
- 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
- H04R7/06—Plane diaphragms comprising a plurality of sections or layers
Abstract
A loudspeaker has a bending wave panel (11) and an exciter (13) mounted on the panel to excite bendingg wave modes in the panel. A rear box (15) defines a cavity (17) in cooperation with the panel (11). A resonance of cavity and panel at a coupled mode resonance frequency may be controlled by providing a duct (19) coupled to the cavity to selectively reduce sound pressure at the coupled mode resonance frequency. Damping (21) may be provided in the duct (19).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9917908 | 1999-07-30 | ||
GBGB9917908.7A GB9917908D0 (en) | 1999-07-30 | 1999-07-30 | Loudspeakers |
PCT/GB2000/002784 WO2001010168A2 (en) | 1999-07-30 | 2000-07-24 | Loudspeaker |
Publications (1)
Publication Number | Publication Date |
---|---|
AU6003700A true AU6003700A (en) | 2001-02-19 |
Family
ID=10858223
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU60037/00A Abandoned AU6003700A (en) | 1999-07-30 | 2000-07-24 | Loudspeaker |
Country Status (11)
Country | Link |
---|---|
EP (1) | EP1201102B1 (en) |
JP (1) | JP2003526968A (en) |
CN (1) | CN1250042C (en) |
AT (1) | ATE244494T1 (en) |
AU (1) | AU6003700A (en) |
DE (1) | DE60003692D1 (en) |
GB (1) | GB9917908D0 (en) |
HK (1) | HK1042012B (en) |
NZ (1) | NZ516351A (en) |
TW (1) | TW490988B (en) |
WO (1) | WO2001010168A2 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6988339B2 (en) | 2002-02-06 | 2006-01-24 | Andersen Corporation | Specialty media window |
US7426804B2 (en) | 2002-02-06 | 2008-09-23 | Andersen Corporation | Specialty display window |
US7207413B2 (en) * | 2003-06-02 | 2007-04-24 | Tbi Audio Systems Llc | Closed loop embedded audio transmission line technology for loudspeaker enclosures and systems |
GB0400323D0 (en) * | 2004-01-08 | 2004-02-11 | New Transducers Ltd | Loudspeakers |
GB0410962D0 (en) * | 2004-05-17 | 2004-06-16 | Mordaunt Short Ltd | Loudspeaker |
US20060061504A1 (en) * | 2004-09-23 | 2006-03-23 | The Regents Of The University Of California | Through wall detection and tracking system |
AU2007231525A1 (en) * | 2006-03-28 | 2007-10-04 | Immersion Technology Property Limited | Loudspeaker system with acoustic equalisation |
CN104038855A (en) * | 2014-06-04 | 2014-09-10 | 瑞声光电科技(常州)有限公司 | Electric acoustic device and assembly method for same |
US10674271B2 (en) | 2016-10-13 | 2020-06-02 | Panasonic Intellectual Property Management Co., Ltd. | Flat speaker and display device |
CN107205194B (en) * | 2017-06-07 | 2020-03-06 | 鞠波 | Sound box and sound box system |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3848090A (en) * | 1971-11-18 | 1974-11-12 | J Walker | Wall hanging speaker system |
US3938617A (en) * | 1974-01-17 | 1976-02-17 | Fort Enterprises, Limited | Speaker enclosure |
US4899390A (en) * | 1986-09-19 | 1990-02-06 | Matsushita Electric Industrial Co., Ltd. | Thin speaker having an enclosure within an open portion and a closed portion |
EP0453230B1 (en) * | 1990-04-20 | 1995-06-21 | Matsushita Electric Industrial Co., Ltd. | Speaker system |
UA51671C2 (en) * | 1995-09-02 | 2002-12-16 | Нью Транзд'Юсез Лімітед | Acoustic device |
-
1999
- 1999-07-30 GB GBGB9917908.7A patent/GB9917908D0/en not_active Ceased
-
2000
- 2000-07-24 NZ NZ516351A patent/NZ516351A/en unknown
- 2000-07-24 CN CNB00810297XA patent/CN1250042C/en not_active Expired - Fee Related
- 2000-07-24 AU AU60037/00A patent/AU6003700A/en not_active Abandoned
- 2000-07-24 DE DE60003692T patent/DE60003692D1/en not_active Expired - Lifetime
- 2000-07-24 EP EP00946162A patent/EP1201102B1/en not_active Expired - Lifetime
- 2000-07-24 WO PCT/GB2000/002784 patent/WO2001010168A2/en active IP Right Grant
- 2000-07-24 AT AT00946162T patent/ATE244494T1/en not_active IP Right Cessation
- 2000-07-24 JP JP2001513935A patent/JP2003526968A/en active Pending
- 2000-07-27 TW TW089115038A patent/TW490988B/en not_active IP Right Cessation
-
2002
- 2002-05-13 HK HK02103615.7A patent/HK1042012B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
WO2001010168A3 (en) | 2001-08-16 |
CN1250042C (en) | 2006-04-05 |
EP1201102A2 (en) | 2002-05-02 |
HK1042012B (en) | 2003-10-03 |
DE60003692D1 (en) | 2003-08-07 |
NZ516351A (en) | 2002-09-27 |
CN1360809A (en) | 2002-07-24 |
WO2001010168A2 (en) | 2001-02-08 |
ATE244494T1 (en) | 2003-07-15 |
HK1042012A1 (en) | 2002-07-26 |
EP1201102B1 (en) | 2003-07-02 |
GB9917908D0 (en) | 1999-09-29 |
JP2003526968A (en) | 2003-09-09 |
TW490988B (en) | 2002-06-11 |
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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 |