WO2000070909A3 - Bending wave acoustic device - Google Patents
Bending wave acoustic device Download PDFInfo
- Publication number
- WO2000070909A3 WO2000070909A3 PCT/GB2000/001751 GB0001751W WO0070909A3 WO 2000070909 A3 WO2000070909 A3 WO 2000070909A3 GB 0001751 W GB0001751 W GB 0001751W WO 0070909 A3 WO0070909 A3 WO 0070909A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- modes
- group
- acoustic device
- bending wave
- wave acoustic
- Prior art date
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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Abstract
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00927539A EP1179284A2 (en) | 1999-05-15 | 2000-05-12 | Bending wave acoustic device |
AU45933/00A AU4593300A (en) | 1999-05-15 | 2000-05-12 | Acoustic device |
NZ514593A NZ514593A (en) | 1999-05-15 | 2000-05-12 | Acoustic device with transducer coupling one of groups of modes of overlapping frequencies |
JP2000619235A JP2003500915A (en) | 1999-05-15 | 2000-05-12 | Sound equipment |
IL14598500A IL145985A0 (en) | 1999-05-15 | 2000-05-12 | Bending wave acoustic device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9911271.6 | 1999-05-15 | ||
GBGB9911271.6A GB9911271D0 (en) | 1999-05-15 | 1999-05-15 | Acoustic device |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2000070909A2 WO2000070909A2 (en) | 2000-11-23 |
WO2000070909A3 true WO2000070909A3 (en) | 2001-02-15 |
Family
ID=10853496
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2000/001751 WO2000070909A2 (en) | 1999-05-15 | 2000-05-12 | Bending wave acoustic device |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP1179284A2 (en) |
JP (1) | JP2003500915A (en) |
CN (1) | CN1350765A (en) |
AU (1) | AU4593300A (en) |
GB (1) | GB9911271D0 (en) |
IL (1) | IL145985A0 (en) |
NZ (1) | NZ514593A (en) |
TW (1) | TW479438B (en) |
WO (1) | WO2000070909A2 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002060218A1 (en) * | 2001-01-26 | 2002-08-01 | Harman Audio Electronic Systems Gmbh | Flat-panel loudspeaker |
US7120263B2 (en) | 2001-03-23 | 2006-10-10 | New Transducers Limited | Bending wave acoustic radiator |
GB2386790B (en) * | 2001-03-23 | 2004-08-18 | New Transducers Ltd | Bending wave acoustic radiator |
EP1776843A1 (en) * | 2004-08-06 | 2007-04-25 | Koninklijke Philips Electronics N.V. | Panel-acoustic transducer comprising an actuator for actuating a panel, and sound-generating and/or recording device |
GB0601076D0 (en) * | 2006-01-19 | 2006-03-01 | New Transducers Ltd | Acoustic device and method of making acoustic device |
US7983432B2 (en) | 2006-09-29 | 2011-07-19 | Shure Acquisition Holdings, Inc. | Point excitation placement in an audio transducer |
JP6047575B2 (en) * | 2012-08-10 | 2016-12-21 | 京セラ株式会社 | SOUND GENERATOR, SOUND GENERATOR, AND ELECTRONIC DEVICE |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992003024A1 (en) * | 1990-08-04 | 1992-02-20 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Panel-form loudspeaker |
WO1997009842A2 (en) * | 1995-09-02 | 1997-03-13 | New Transducers Limited | Acoustic device |
WO1998034320A2 (en) * | 1997-01-31 | 1998-08-06 | New Transducers Limited | Electro-dynamic inertial vibration exciter |
WO1999002012A1 (en) * | 1997-07-03 | 1999-01-14 | New Transducers Limited | Panel-form loudspeakers |
-
1999
- 1999-05-15 GB GBGB9911271.6A patent/GB9911271D0/en not_active Ceased
-
2000
- 2000-05-12 AU AU45933/00A patent/AU4593300A/en not_active Abandoned
- 2000-05-12 EP EP00927539A patent/EP1179284A2/en not_active Withdrawn
- 2000-05-12 WO PCT/GB2000/001751 patent/WO2000070909A2/en active Search and Examination
- 2000-05-12 JP JP2000619235A patent/JP2003500915A/en active Pending
- 2000-05-12 CN CN00807604.9A patent/CN1350765A/en active Pending
- 2000-05-12 NZ NZ514593A patent/NZ514593A/en unknown
- 2000-05-12 IL IL14598500A patent/IL145985A0/en unknown
- 2000-05-17 TW TW089109467A patent/TW479438B/en active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992003024A1 (en) * | 1990-08-04 | 1992-02-20 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Panel-form loudspeaker |
WO1997009842A2 (en) * | 1995-09-02 | 1997-03-13 | New Transducers Limited | Acoustic device |
WO1998034320A2 (en) * | 1997-01-31 | 1998-08-06 | New Transducers Limited | Electro-dynamic inertial vibration exciter |
WO1999002012A1 (en) * | 1997-07-03 | 1999-01-14 | New Transducers Limited | Panel-form loudspeakers |
Also Published As
Publication number | Publication date |
---|---|
EP1179284A2 (en) | 2002-02-13 |
WO2000070909A2 (en) | 2000-11-23 |
JP2003500915A (en) | 2003-01-07 |
NZ514593A (en) | 2002-09-27 |
IL145985A0 (en) | 2002-07-25 |
CN1350765A (en) | 2002-05-22 |
TW479438B (en) | 2002-03-11 |
GB9911271D0 (en) | 1999-07-14 |
AU4593300A (en) | 2000-12-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
TW428415B (en) | Panel-form loudspeakers | |
ATE179296T1 (en) | PANEL-SHAPED SPEAKERS | |
WO1998052381A3 (en) | Panel-form loudspeakers | |
IL141634A0 (en) | Panel form acoustic apparatus using bending waves modes | |
HK1029247A1 (en) | Active acoustic devices comprising panel members. | |
WO2000033612A3 (en) | Bending wave acoustic devices | |
HK1047675A1 (en) | Flat acoustic transducer | |
CA2440094A1 (en) | Structural reinforcement member and method of use therefor | |
AU4996496A (en) | Portable speakers with enhanced low frequency response | |
EP0996311A4 (en) | Planar acoustic transducer | |
AU6776100A (en) | Electroacoustic transducer with diaphragm securing structure and method | |
WO2001087002A3 (en) | Loudspeaker having an acoustic panel and an electrical driver | |
DE69730789D1 (en) | Piezoelectric electroacoustic transducer | |
GB2282297B (en) | Improved resonant acoustic emission transducer | |
CA2087406A1 (en) | Vibration driven motor | |
WO2000070909A3 (en) | Bending wave acoustic device | |
WO2001005189A3 (en) | Bending wave panel speaker and method of driving such a speaker | |
WO2002082855A3 (en) | Loudspeaker | |
EP1100288A3 (en) | Acoustic radiator | |
NO953129L (en) | Electroacoustic transducer with mechanical impedance converter | |
AU6917600A (en) | Acoustic transducer panel | |
WO2001003467A3 (en) | Bending wave acoustic device | |
WO2000078090A3 (en) | Bending wave acoustic device | |
WO2001018132A3 (en) | Panel-shaped loudspeaker | |
AU2101397A (en) | Sound deadening panels |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 00807604.9 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A2 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY CA CH CN CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): GH GM KE LS MW SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
AK | Designated states |
Kind code of ref document: A3 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY CA CH CN CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A3 Designated state(s): GH GM KE LS MW SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2000927539 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 514593 Country of ref document: NZ Ref document number: IN/PCT/2001/1029/KOL Country of ref document: IN |
|
ENP | Entry into the national phase |
Ref document number: 2000 619235 Country of ref document: JP Kind code of ref document: A |
|
WWP | Wipo information: published in national office |
Ref document number: 2000927539 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 2000927539 Country of ref document: EP |
|
DPE2 | Request for preliminary examination filed before expiration of 19th month from priority date (pct application filed from 20040101) |