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
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; 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
    • 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
    • H04R1/20—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)
  • Golf Clubs (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (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 (17)

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

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
MXPA03009073A (es) * 2001-04-05 2004-02-17 New Transducers Ltd Altavoz.
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
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
CZ241299A3 (cs) * 1997-01-09 1999-10-13 New Transducers Limited Budící jednotka reproduktorů

Also Published As

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

Similar Documents

Publication Publication Date Title
YU17201A (sh) Akustički uređaj oblika ploče koji koristi mod savojnih talasa
WO1998026405A3 (en) Directed acoustic stick radiator
TR199800372T1 (xx) Akustik cihaz.
YU50700A (sh) Akustični uređaj koji sadrži membranu koja se zasniva na delovanju savojnih talasa
ATE305749T1 (de) Vorrichtung zur fernüberwachung von pathologischen zuständen
YU16301A (sh) Zvučnik koji sadrži rezonantni član oblika ploče
MY125969A (en) Transducer
MY100723A (en) Earphones
IL140655A0 (en) Acoustic device using bending wave modes
HK1008643A1 (en) Musical instruments incorporating loudspeakers
GB2247593B (en) A process and an electro-acoustic transducer for transmitting low-frequency acoustic waves into a liquid
ATE237211T1 (de) Akustische vorrichtung nach dem biegewellenprinzip
HK1016007A1 (en) B&w loudspeakers limited, gb
WO2003009219A3 (en) Electronic article comprising loudspeaker & touch pad
EP0800104A3 (de) Optische Vorrichtung mit optischem Wellenleiter, der durch eine akustische stehende Welle erzeugt wird
JP2005500725A5 (de)
WO2001003467A3 (en) Bending wave acoustic device
IT9048608A0 (it) Dispositivo per la trasmissione e la ricezione di sgnali acustici ad alta risoluzione, particolarmente er applicazioni sottomarine, con trasduttore paraboloidale di ricezione circondato da trasduttori parabolidali di trasmissione a eccitazione differenziata.
NZ514593A (en) Acoustic device with transducer coupling one of groups of modes of overlapping frequencies
JPS56165497A (en) Acoustic converter
AU7935700A (en) Keyboard comprising a loudspeaker
FR2713429B1 (fr) Procédé d'émission de forte puissance d'ondes acoustiques et pavillons de transducteurs correspondants.
WO2000078090A3 (en) Bending wave acoustic device
GB2385409A (en) Multi-functional vibro-acoustic device
JPS6486085A (en) Radar sensor for short distance

Legal Events

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