HK1040875B - Bending wave acoustic device - Google Patents

Bending wave acoustic device

Info

Publication number
HK1040875B
HK1040875B HK02102096.7A HK02102096A HK1040875B HK 1040875 B HK1040875 B HK 1040875B HK 02102096 A HK02102096 A HK 02102096A HK 1040875 B HK1040875 B HK 1040875B
Authority
HK
Hong Kong
Prior art keywords
acoustic device
bending wave
wave acoustic
bending
wave
Prior art date
Application number
HK02102096.7A
Other languages
Chinese (zh)
Other versions
HK1040875A1 (en
Inventor
Bank Graham
Harris Neil
Original Assignee
Nvf Tech 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.)
Filing date
Publication date
Application filed by Nvf Tech Ltd filed Critical Nvf Tech Ltd
Publication of HK1040875A1 publication Critical patent/HK1040875A1/en
Publication of HK1040875B publication Critical patent/HK1040875B/en

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
    • 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
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
    • 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

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
HK02102096.7A 1999-06-10 2002-03-19 Bending wave acoustic device HK1040875B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9913465.2A GB9913465D0 (en) 1999-06-10 1999-06-10 Acoustic device
PCT/GB2000/002054 WO2000078090A2 (en) 1999-06-10 2000-06-07 Bending wave acoustic device

Publications (2)

Publication Number Publication Date
HK1040875A1 HK1040875A1 (en) 2002-06-21
HK1040875B true HK1040875B (en) 2003-10-17

Family

ID=10855054

Family Applications (1)

Application Number Title Priority Date Filing Date
HK02102096.7A HK1040875B (en) 1999-06-10 2002-03-19 Bending wave acoustic device

Country Status (10)

Country Link
EP (1) EP1186203B1 (en)
JP (1) JP2003501982A (en)
CN (1) CN1261002C (en)
AU (1) AU5089600A (en)
DE (1) DE60004045T2 (en)
GB (1) GB9913465D0 (en)
HK (1) HK1040875B (en)
NZ (1) NZ515328A (en)
TW (1) TW479434B (en)
WO (1) WO2000078090A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002078391A2 (en) * 2001-03-23 2002-10-03 New Transducers Limited Bending wave acoustic radiator
US7120263B2 (en) 2001-03-23 2006-10-10 New Transducers Limited Bending wave acoustic radiator
GB0123932D0 (en) * 2001-10-05 2001-11-28 New Transducers Ltd Loudspeakers
GB0317331D0 (en) * 2003-07-24 2003-08-27 New Transducers Ltd Acoustic device
JP5545083B2 (en) * 2010-07-07 2014-07-09 ソニー株式会社 Speaker device
EP3195617A1 (en) * 2014-09-19 2017-07-26 Corning Incorporated Thin panel loudspeakers

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1132593B (en) * 1965-04-05 1962-07-05 Bolt Beranek & Newman Acoustically effective plate, especially for coupling to an electroacoustic transducer
UA51671C2 (en) * 1995-09-02 2002-12-16 Нью Транзд'Юсез Лімітед Acoustic device
TW450011B (en) * 1998-02-10 2001-08-11 New Transducers Ltd Acoustic devices

Also Published As

Publication number Publication date
EP1186203A2 (en) 2002-03-13
EP1186203B1 (en) 2003-07-23
DE60004045D1 (en) 2003-08-28
HK1040875A1 (en) 2002-06-21
JP2003501982A (en) 2003-01-14
DE60004045T2 (en) 2004-05-06
GB9913465D0 (en) 1999-08-11
CN1356015A (en) 2002-06-26
TW479434B (en) 2002-03-11
AU5089600A (en) 2001-01-02
NZ515328A (en) 2002-04-26
WO2000078090A3 (en) 2001-07-12
WO2000078090A2 (en) 2000-12-21
CN1261002C (en) 2006-06-21

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Legal Events

Date Code Title Description
PF Patent in force
PE Patent expired

Effective date: 20200606