ATE237211T1 - Akustische vorrichtung nach dem biegewellenprinzip - Google Patents

Akustische vorrichtung nach dem biegewellenprinzip

Info

Publication number
ATE237211T1
ATE237211T1 AT99952703T AT99952703T ATE237211T1 AT E237211 T1 ATE237211 T1 AT E237211T1 AT 99952703 T AT99952703 T AT 99952703T AT 99952703 T AT99952703 T AT 99952703T AT E237211 T1 ATE237211 T1 AT E237211T1
Authority
AT
Austria
Prior art keywords
acoustic device
device based
bending wave
wave principle
resonant modes
Prior art date
Application number
AT99952703T
Other languages
German (de)
English (en)
Inventor
Neil Harris
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.)
Filing date
Publication date
Application filed by New Transducers Ltd filed Critical New Transducers Ltd
Application granted granted Critical
Publication of ATE237211T1 publication Critical patent/ATE237211T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones
    • H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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 
    • H04R1/227—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only  using transducers reproducing the same frequency band
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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
    • H04R1/2815—Enclosures comprising vibrating or resonating arrangements of the bass reflex type
    • H04R1/2819—Enclosures comprising vibrating or resonating arrangements of the bass reflex type for loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; 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)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Multimedia (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Golf Clubs (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
AT99952703T 1998-11-06 1999-11-05 Akustische vorrichtung nach dem biegewellenprinzip ATE237211T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9824256.3A GB9824256D0 (en) 1998-11-06 1998-11-06 Acoustic devices etc.
PCT/GB1999/003656 WO2000028781A1 (en) 1998-11-06 1999-11-05 Acoustic device according to bending wave principle

Publications (1)

Publication Number Publication Date
ATE237211T1 true ATE237211T1 (de) 2003-04-15

Family

ID=10841891

Family Applications (1)

Application Number Title Priority Date Filing Date
AT99952703T ATE237211T1 (de) 1998-11-06 1999-11-05 Akustische vorrichtung nach dem biegewellenprinzip

Country Status (16)

Country Link
EP (1) EP1125473B1 (es)
JP (1) JP2002530032A (es)
KR (1) KR20010080941A (es)
CN (1) CN1135058C (es)
AT (1) ATE237211T1 (es)
AU (1) AU745969B2 (es)
BR (1) BR9915114A (es)
CA (1) CA2349861A1 (es)
DE (1) DE69906775T2 (es)
ES (1) ES2197682T3 (es)
GB (1) GB9824256D0 (es)
IL (1) IL142429A0 (es)
NZ (1) NZ510971A (es)
TW (1) TW462202B (es)
WO (1) WO2000028781A1 (es)
ZA (1) ZA200102755B (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2370939A (en) * 2001-01-04 2002-07-10 New Transducers Ltd A curved or cylindrical bending wave loudspeaker panel
US7245729B2 (en) 2001-04-05 2007-07-17 New Transducers Limited Loudspeaker
WO2002082855A2 (en) * 2001-04-05 2002-10-17 New Transducers Limited Loudspeaker
US6813362B2 (en) 2001-04-05 2004-11-02 New Transducers Limited Loudspeaker and method of making same
JP2006121360A (ja) * 2004-10-21 2006-05-11 Authentic Ltd パネル型スピーカ

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5119431A (en) * 1987-12-28 1992-06-02 Hamby William H Efficiency loudspeaker
US4989254A (en) * 1989-06-30 1991-01-29 Amalaha Leonard D Electro-acoustic transducer and manufacturing process
UA51671C2 (uk) * 1995-09-02 2002-12-16 Нью Транзд'Юсез Лімітед Акустичний пристрій
GB9705981D0 (en) * 1997-03-22 1997-05-07 New Transducers Ltd Personal computers
GB9705979D0 (en) * 1997-03-22 1997-05-07 New Transducers Ltd Passenger vehicles
EP0951801B1 (en) * 1997-01-09 2002-03-13 New Transducers Limited Loudspeakers

Also Published As

Publication number Publication date
HK1035988A1 (en) 2001-12-14
WO2000028781A1 (en) 2000-05-18
EP1125473A1 (en) 2001-08-22
IL142429A0 (en) 2002-03-10
JP2002530032A (ja) 2002-09-10
KR20010080941A (ko) 2001-08-25
TW462202B (en) 2001-11-01
ZA200102755B (en) 2001-10-08
AU745969B2 (en) 2002-04-11
EP1125473B1 (en) 2003-04-09
DE69906775T2 (de) 2004-01-29
DE69906775D1 (de) 2003-05-15
GB9824256D0 (en) 1998-12-30
BR9915114A (pt) 2001-07-31
NZ510971A (en) 2002-03-01
CN1325606A (zh) 2001-12-05
CA2349861A1 (en) 2000-05-18
CN1135058C (zh) 2004-01-14
ES2197682T3 (es) 2004-01-01
AU6481399A (en) 2000-05-29

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties