AU2002238709A1 - Bending wave acoustic radiator - Google Patents

Bending wave acoustic radiator

Info

Publication number: AU2002238709A1
Authority: AU; Australia
Prior art keywords: bending wave; acoustic radiator; wave acoustic; radiator; bending
Prior art date: 2001-03-23
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

Application number

AU2002238709A

Other versions

AU2002238709A8 (en

Inventor

Henry Azima

Graham Bank

Charles Bream

Martin Colloms

Julian Fordham

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

NVF Tech Ltd

Original Assignee

New Transducers Ltd

Priority date (The priority date 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 date listed.)

2001-03-23

Filing date

2002-03-13

Publication date

2002-10-08

2001-03-23 Priority claimed from GB0107314A external-priority patent/GB0107314D0/en

2001-12-20 Priority claimed from GB0130469A external-priority patent/GB0130469D0/en

2002-03-13 Application filed by New Transducers Ltd filed Critical New Transducers Ltd

2002-10-08 Publication of AU2002238709A1 publication Critical patent/AU2002238709A1/en

2008-01-03 Publication of AU2002238709A8 publication Critical patent/AU2002238709A8/en

Status Abandoned legal-status Critical Current

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
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
- H04R2307/029—Diaphragms comprising fibres

Landscapes

Engineering & Computer Science (AREA)
Multimedia (AREA)
Physics & Mathematics (AREA)
Acoustics & Sound (AREA)
Signal Processing (AREA)
Diaphragms For Electromechanical Transducers (AREA)
Building Environments (AREA)

AU2002238709A 2001-03-23 2002-03-13 Bending wave acoustic radiator Abandoned AU2002238709A1 (en)

Applications Claiming Priority (5)

Application Number	Priority Date	Filing Date	Title
GB0107314A GB0107314D0 (en)	2001-03-23	2001-03-23	Bending wave acoustic radiator
GB0107314.7		2001-03-23
GB0130469.0		2001-12-20
GB0130469A GB0130469D0 (en)	2001-12-20	2001-12-20	Bending wave acoustic radiator
PCT/GB2002/000993 WO2002078391A2 (en)	2001-03-23	2002-03-13	Bending wave acoustic radiator

Publications (2)

Publication Number	Publication Date
AU2002238709A1 true AU2002238709A1 (en)	2002-10-08
AU2002238709A8 AU2002238709A8 (en)	2008-01-03

Family

ID=26245888

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AU2002238709A Abandoned AU2002238709A1 (en)	2001-03-23	2002-03-13	Bending wave acoustic radiator

Country Status (5)

Country	Link
CN (1)	CN100551133C (en)
AU (1)	AU2002238709A1 (en)
GB (1)	GB2386790B (en)
TW (1)	TW527846B (en)
WO (1)	WO2002078391A2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2005101899A2 (en)	2004-04-16	2005-10-27	New Transducers Limited	Acoustic device & method of making acoustic device
CN1882198B (en) *	2006-04-30	2012-06-13	南京大学	Method for designing sound pressure frequency response curve of drive location optimization bending vibration type thin plate loudspeaker
EP1988740A1 (en) *	2007-05-03	2008-11-05	Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO	Sound generator
DE102011015747A1 (en) *	2011-03-31	2012-10-04	Airbus Operations Gmbh	Active acoustic element e.g. flat speaker, for use in cabin lining of e.g. aircraft, has plate-like element producing sound waves, partially made of foamed glass ceramic material and exhibiting three-dimensional surface structure
US9628917B2 (en) *	2014-07-23	2017-04-18	Bose Corporation	Sound producing system
US9660596B2 (en) *	2015-01-23	2017-05-23	Tectonic Audio Labs	Audio transducer stabilization system and method
GB2539029B (en) *	2015-06-04	2017-06-07	Amina Tech Ltd	Distributed mode loudspeaker damping oscillations within exciter feet
GB2586959B (en) *	2019-08-08	2021-10-13	Amina Tech Limited	Distributed mode loudspeaker
KR102829990B1 (en)	2020-12-23	2025-07-03	엘지디스플레이 주식회사	Sound generating module and vehicle comprising the same
GB202217215D0 (en) *	2022-11-17	2023-01-04	Amina Tech Limited	distributed mode flat panel loudspeaker with overhanging monolithic panel and method of installation thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB9822246D0 (en) *	1998-10-13	1998-12-09	New Transducers Ltd	Loudspeakers
GB9704486D0 (en) *	1997-03-04	1997-04-23	New Transducers Ltd	Acoustic devices etc
GB9911271D0 (en) *	1999-05-15	1999-07-14	New Transducers Ltd	Acoustic device
GB9913465D0 (en) *	1999-06-10	1999-08-11	New Transducers Ltd	Acoustic device

2002
- 2002-03-13 GB GB0316845A patent/GB2386790B/en not_active Expired - Fee Related
- 2002-03-13 WO PCT/GB2002/000993 patent/WO2002078391A2/en not_active Ceased
- 2002-03-13 CN CNB028068688A patent/CN100551133C/en not_active Expired - Fee Related
- 2002-03-13 AU AU2002238709A patent/AU2002238709A1/en not_active Abandoned
- 2002-03-21 TW TW91105475A patent/TW527846B/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
WO2002078391A2 (en)	2002-10-03
AU2002238709A8 (en)	2008-01-03
GB2386790B (en)	2004-08-18
GB0316845D0 (en)	2003-08-20
WO2002078391A3 (en)	2007-10-25
GB2386790A (en)	2003-09-24
CN100551133C (en)	2009-10-14
TW527846B (en)	2003-04-11
HK1055655A1 (en)	2004-01-16
CN1625918A (en)	2005-06-08

Publication	Publication Date	Title
AU2002326359A1 (en)	2003-01-29	Ultrasonic transducers
AU2002255848A1 (en)	2002-10-08	Guided acoustic wave inspection system
AU2002302072A1 (en)	2003-06-12	Surface wave radar
AU2002326474A1 (en)	2002-07-16	Acoustic wave filter
AU2002334361A1 (en)	2003-04-01	Acoustic wave device
GB0216984D0 (en)	2002-08-28	Surface acoustic wave
AU2002238709A1 (en)	2002-10-08	Bending wave acoustic radiator
AU2002334360A1 (en)	2003-03-24	Non-cylindrical acoustic wave device
AU2001275706A1 (en)	2002-02-18	Bending wave loudspeaker
AU2001251029A1 (en)	2003-03-27	Acoustic coupling device
AU2001275698A1 (en)	2002-02-18	Bending wave loudspeaker
HK1055655B (en)	2005-01-14	Bending wave acoustic radiator
AUPR511401A0 (en)	2001-06-14	Surface acoustic wave device
GB0130469D0 (en)	2002-02-06	Bending wave acoustic radiator
GB0107314D0 (en)	2001-05-16	Bending wave acoustic radiator
AU2002321477A1 (en)	2003-04-01	Acoustic device
GB0119138D0 (en)	2001-09-26	Bending wave acoustic panel
GB0118586D0 (en)	2001-09-19	Bending wave acoustic panel
GB0112543D0 (en)	2001-07-11	Bending wave panel loudspeaker
HK1051620A (en)	2003-08-08	Bending wave loudspeaker
AU2003258546A1 (en)	2004-02-23	Piezoelectric bending transducer
AU2002253359A1 (en)	2002-11-18	Electrostrictive bending transducer
AU2002235107A1 (en)	2002-10-03	Sonar transducer
AU2002241378A1 (en)	2002-11-25	Elecro-mechanical transducer
AU2002254838A1 (en)	2002-12-03	Ultrasonic shaping instrument

Legal Events

Date	Code	Title	Description
2004-02-19	MK6	Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase