IL142429A0 - Acoustic device according to bending wave principle - Google Patents

Acoustic device according to bending wave principle

Info

Publication number
IL142429A0
IL142429A0 IL14242999A IL14242999A IL142429A0 IL 142429 A0 IL142429 A0 IL 142429A0 IL 14242999 A IL14242999 A IL 14242999A IL 14242999 A IL14242999 A IL 14242999A IL 142429 A0 IL142429 A0 IL 142429A0
Authority
IL
Israel
Prior art keywords
acoustic device
bending wave
wave principle
resonant modes
coupled
Prior art date
Application number
IL14242999A
Other languages
English (en)
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
Publication of IL142429A0 publication Critical patent/IL142429A0/xx

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
    • H04R7/12—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; DEAF-AID SETS; 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; 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 
    • H04R1/227—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; 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
    • H04R1/2815—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; 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

  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (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)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
IL14242999A 1998-11-06 1999-11-05 Acoustic device according to bending wave principle IL142429A0 (en)

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
IL142429A0 true IL142429A0 (en) 2002-03-10

Family

ID=10841891

Family Applications (1)

Application Number Title Priority Date Filing Date
IL14242999A IL142429A0 (en) 1998-11-06 1999-11-05 Acoustic device according to bending wave principle

Country Status (17)

Country Link
EP (1) EP1125473B1 (xx)
JP (1) JP2002530032A (xx)
KR (1) KR20010080941A (xx)
CN (1) CN1135058C (xx)
AT (1) ATE237211T1 (xx)
AU (1) AU745969B2 (xx)
BR (1) BR9915114A (xx)
CA (1) CA2349861A1 (xx)
DE (1) DE69906775T2 (xx)
ES (1) ES2197682T3 (xx)
GB (1) GB9824256D0 (xx)
HK (1) HK1035988A1 (xx)
IL (1) IL142429A0 (xx)
NZ (1) NZ510971A (xx)
TW (1) TW462202B (xx)
WO (1) WO2000028781A1 (xx)
ZA (1) ZA200102755B (xx)

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
US6813362B2 (en) 2001-04-05 2004-11-02 New Transducers Limited Loudspeaker and method of making same
US7245729B2 (en) 2001-04-05 2007-07-17 New Transducers Limited Loudspeaker
WO2002082856A2 (en) * 2001-04-05 2002-10-17 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
GB9705979D0 (en) * 1997-03-22 1997-05-07 New Transducers Ltd Passenger vehicles
GB9705981D0 (en) * 1997-03-22 1997-05-07 New Transducers Ltd Personal computers
JP2001507898A (ja) * 1997-01-09 2001-06-12 ニュー トランスデューサーズ リミテッド ラウドスピーカ

Also Published As

Publication number Publication date
ATE237211T1 (de) 2003-04-15
WO2000028781A1 (en) 2000-05-18
BR9915114A (pt) 2001-07-31
DE69906775D1 (de) 2003-05-15
JP2002530032A (ja) 2002-09-10
HK1035988A1 (en) 2001-12-14
DE69906775T2 (de) 2004-01-29
GB9824256D0 (en) 1998-12-30
CA2349861A1 (en) 2000-05-18
TW462202B (en) 2001-11-01
CN1135058C (zh) 2004-01-14
ES2197682T3 (es) 2004-01-01
EP1125473A1 (en) 2001-08-22
CN1325606A (zh) 2001-12-05
AU745969B2 (en) 2002-04-11
KR20010080941A (ko) 2001-08-25
AU6481399A (en) 2000-05-29
EP1125473B1 (en) 2003-04-09
ZA200102755B (en) 2001-10-08
NZ510971A (en) 2002-03-01

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