WO2000035242A3 - Bending wave panel-form loudspeaker - Google Patents

Bending wave panel-form loudspeaker Download PDF

Info

Publication number
WO2000035242A3
WO2000035242A3 PCT/GB1999/004080 GB9904080W WO0035242A3 WO 2000035242 A3 WO2000035242 A3 WO 2000035242A3 GB 9904080 W GB9904080 W GB 9904080W WO 0035242 A3 WO0035242 A3 WO 0035242A3
Authority
WO
WIPO (PCT)
Prior art keywords
voice coil
bending wave
vibration exciter
pane
magnet system
Prior art date
Application number
PCT/GB1999/004080
Other languages
French (fr)
Other versions
WO2000035242A2 (en
Inventor
Henry Azima
Original Assignee
New Transducers Ltd
Henry Azima
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
Priority claimed from GBGB9827040.8A external-priority patent/GB9827040D0/en
Application filed by New Transducers Ltd, Henry Azima filed Critical New Transducers Ltd
Priority to JP2000587574A priority Critical patent/JP2002532993A/en
Priority to EP99958386A priority patent/EP1138175A2/en
Priority to AU15760/00A priority patent/AU1576000A/en
Publication of WO2000035242A2 publication Critical patent/WO2000035242A2/en
Publication of WO2000035242A3 publication Critical patent/WO2000035242A3/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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H04R9/066—Loudspeakers using the principle of inertia
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

A window loudspeaker combination comprising a pane of glass or other transparent material adapted to be supported at its periphery in a surround and a vibration exciter coupled to the pane to cause bending wave vibration therein to produce an acoustic output, characterised in that the vibration exciter is an electrodynamic inertial device having a low mass voice coil, a magnet system associated with the voice coil, and a suspension for mounting voice coil in the magnet system for movement relative thereto, the vibration exciter being mounted wholly on the plane.
PCT/GB1999/004080 1998-12-09 1999-12-09 Bending wave panel-form loudspeaker WO2000035242A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2000587574A JP2002532993A (en) 1998-12-09 1999-12-09 Loudspeaker
EP99958386A EP1138175A2 (en) 1998-12-09 1999-12-09 Bending wave panel-form loudspeaker
AU15760/00A AU1576000A (en) 1998-12-09 1999-12-09 Loudspeaker

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GBGB9827040.8A GB9827040D0 (en) 1998-12-09 1998-12-09 Loudspeaker
GB9827040.8 1999-01-14
GB9900674 1999-01-14
GB9900674.4 1999-01-14

Publications (2)

Publication Number Publication Date
WO2000035242A2 WO2000035242A2 (en) 2000-06-15
WO2000035242A3 true WO2000035242A3 (en) 2000-08-31

Family

ID=26314809

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1999/004080 WO2000035242A2 (en) 1998-12-09 1999-12-09 Bending wave panel-form loudspeaker

Country Status (6)

Country Link
EP (1) EP1138175A2 (en)
JP (1) JP2002532993A (en)
CN (1) CN1329809A (en)
AU (1) AU1576000A (en)
TW (1) TW457826B (en)
WO (1) WO2000035242A2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3512087B2 (en) 1999-06-15 2004-03-29 日本電気株式会社 Panel speaker
US6721436B1 (en) * 2000-03-29 2004-04-13 Sound Advance Systems, Inc. Remote edge-driven panel speaker
GB2376829A (en) * 2001-04-21 2002-12-24 Michael Andrew Beadman Removable audio exciter system
GB0117663D0 (en) * 2001-07-20 2001-09-12 New Transducers Ltd Listening anti eavesdropping device
DE10164509A1 (en) * 2001-12-28 2003-07-17 Webasto Vehicle Sys Int Gmbh Loudspeaker system for an audio facility in a motor vehicle, has a fixed window pane as membranes for a loudspeaker such as vehicle rear window or sunroof.
US6988339B2 (en) 2002-02-06 2006-01-24 Andersen Corporation Specialty media window
US7426804B2 (en) 2002-02-06 2008-09-23 Andersen Corporation Specialty display window
EP1385354A1 (en) * 2002-07-25 2004-01-28 Kam, Tai-Yan Transparent panel-form loudspeaker
US6957516B2 (en) * 2002-12-03 2005-10-25 Smart Skin, Inc. Acoustically intelligent windows
JP2007116422A (en) 2005-10-20 2007-05-10 Sony Corp Audio output device and method
DE102007030811A1 (en) 2007-04-26 2008-11-06 Airbus Deutschland Gmbh Flat speaker
FR3021268A1 (en) * 2014-05-20 2015-11-27 Peugeot Citroen Automobiles Sa GLAZING OF A MOTOR VEHICLE IN WHICH IS A SPEAKER
CN105812989A (en) * 2014-12-31 2016-07-27 鸿富锦精密工业（深圳）有限公司 Loudspeaker
GB2611026A (en) * 2021-09-17 2023-03-29 Continental Automotive Tech Gmbh Vehicle intercom system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4352039A (en) * 1980-07-25 1982-09-28 The United States Of America As Represented By The Secretary Of The Army Sonic transducer
EP0296139A2 (en) * 1987-06-18 1988-12-21 Highwood Audio Inc. Audio transducer
US4926486A (en) * 1987-07-17 1990-05-15 Barsumian Bruce R Transducer assembly for automatic message system
GB2289596A (en) * 1994-05-20 1995-11-22 Microtouch Systems Inc Through-window speaker/microphone
WO1997009842A2 (en) * 1995-09-02 1997-03-13 New Transducers Limited Acoustic device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4352039A (en) * 1980-07-25 1982-09-28 The United States Of America As Represented By The Secretary Of The Army Sonic transducer
EP0296139A2 (en) * 1987-06-18 1988-12-21 Highwood Audio Inc. Audio transducer
US4926486A (en) * 1987-07-17 1990-05-15 Barsumian Bruce R Transducer assembly for automatic message system
GB2289596A (en) * 1994-05-20 1995-11-22 Microtouch Systems Inc Through-window speaker/microphone
WO1997009842A2 (en) * 1995-09-02 1997-03-13 New Transducers Limited Acoustic device

Also Published As

Publication number Publication date
CN1329809A (en) 2002-01-02
TW457826B (en) 2001-10-01
AU1576000A (en) 2000-06-26
WO2000035242A2 (en) 2000-06-15
EP1138175A2 (en) 2001-10-04
JP2002532993A (en) 2002-10-02

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