NZ516351A - Loudspeaker - Google Patents
LoudspeakerInfo
- Publication number
- NZ516351A NZ516351A NZ516351A NZ51635100A NZ516351A NZ 516351 A NZ516351 A NZ 516351A NZ 516351 A NZ516351 A NZ 516351A NZ 51635100 A NZ51635100 A NZ 51635100A NZ 516351 A NZ516351 A NZ 516351A
- Authority
- NZ
- New Zealand
- Prior art keywords
- panel
- cavity
- duct
- loudspeaker
- resonance frequency
- Prior art date
Links
- 238000005452 bending Methods 0.000 abstract 2
- 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
Landscapes
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Surgical Instruments (AREA)
- Liquid Crystal (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
A loudspeaker having a bending wave panel (11) and an exciter (13) mounted on the panel to excite bending wave modes in the panel. A rear box (15) defines a cavity (17) in cooperation with the panel (11). A resonance cavity and panel in 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 (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
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 |
---|---|
NZ516351A true NZ516351A (en) | 2002-09-27 |
Family
ID=10858223
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NZ516351A NZ516351A (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 |
---|---|---|---|---|
US7426804B2 (en) | 2002-02-06 | 2008-09-23 | Andersen Corporation | Specialty display window |
US6988339B2 (en) | 2002-02-06 | 2006-01-24 | Andersen Corporation | Specialty media 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 |
WO2007109828A1 (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 |
JP6931779B2 (en) * | 2016-10-13 | 2021-09-08 | パナソニックIpマネジメント株式会社 | Flat speakers and display devices |
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 CN CNB00810297XA patent/CN1250042C/en not_active Expired - Fee Related
- 2000-07-24 AT AT00946162T patent/ATE244494T1/en not_active IP Right Cessation
- 2000-07-24 NZ NZ516351A patent/NZ516351A/en unknown
- 2000-07-24 WO PCT/GB2000/002784 patent/WO2001010168A2/en active IP Right Grant
- 2000-07-24 AU AU60037/00A patent/AU6003700A/en not_active Abandoned
- 2000-07-24 JP JP2001513935A patent/JP2003526968A/en active Pending
- 2000-07-24 EP EP00946162A patent/EP1201102B1/en not_active Expired - Lifetime
- 2000-07-24 DE DE60003692T patent/DE60003692D1/en not_active Expired - Lifetime
- 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 |
---|---|
JP2003526968A (en) | 2003-09-09 |
TW490988B (en) | 2002-06-11 |
HK1042012B (en) | 2003-10-03 |
EP1201102B1 (en) | 2003-07-02 |
GB9917908D0 (en) | 1999-09-29 |
HK1042012A1 (en) | 2002-07-26 |
CN1360809A (en) | 2002-07-24 |
AU6003700A (en) | 2001-02-19 |
DE60003692D1 (en) | 2003-08-07 |
WO2001010168A2 (en) | 2001-02-08 |
ATE244494T1 (en) | 2003-07-15 |
CN1250042C (en) | 2006-04-05 |
EP1201102A2 (en) | 2002-05-02 |
WO2001010168A3 (en) | 2001-08-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PSEA | Patent sealed |