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WO2000069214A3 - Vibration exciter - Google Patents

Vibration exciter Download PDF

Info

Publication number
WO2000069214A3
WO2000069214A3 PCT/GB2000/001545 GB0001545W WO0069214A3 WO 2000069214 A3 WO2000069214 A3 WO 2000069214A3 GB 0001545 W GB0001545 W GB 0001545W WO 0069214 A3 WO0069214 A3 WO 0069214A3
Authority
WO
WIPO (PCT)
Prior art keywords
vibration exciter
panel
area
contact
loudspeaker
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/GB2000/001545
Other languages
French (fr)
Other versions
WO2000069214A2 (en
Inventor
Charles Bream
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NVF Tech Ltd
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
Priority claimed from GBGB9910450.7A external-priority patent/GB9910450D0/en
Priority claimed from GBGB9911039.7A external-priority patent/GB9911039D0/en
Application filed by New Transducers Ltd filed Critical New Transducers Ltd
Priority to AU44196/00A priority Critical patent/AU4419600A/en
Publication of WO2000069214A2 publication Critical patent/WO2000069214A2/en
Publication of WO2000069214A3 publication Critical patent/WO2000069214A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H04R31/006—Interconnection of transducer parts
    • 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)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

A method of making a loudspeaker comprising attaching a vibration exciter to a bending-wave panel by bringing the vibration exciter and the panel into contact over an area, and applying ultrasound energy to the contact area.
PCT/GB2000/001545 1999-05-06 2000-05-04 Vibration exciter Ceased WO2000069214A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU44196/00A AU4419600A (en) 1999-05-06 2000-05-04 Vibration exciter

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GBGB9910450.7A GB9910450D0 (en) 1999-05-06 1999-05-06 Vibration exciter
GB9910450.7 1999-05-06
GB9911039.7 1999-05-12
GBGB9911039.7A GB9911039D0 (en) 1999-05-12 1999-05-12 Vibration exciter

Publications (2)

Publication Number Publication Date
WO2000069214A2 WO2000069214A2 (en) 2000-11-16
WO2000069214A3 true WO2000069214A3 (en) 2001-01-04

Family

ID=26315516

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2000/001545 Ceased WO2000069214A2 (en) 1999-05-06 2000-05-04 Vibration exciter

Country Status (3)

Country Link
AU (1) AU4419600A (en)
TW (1) TW474110B (en)
WO (1) WO2000069214A2 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4029911A (en) * 1975-04-29 1977-06-14 U.S. Philips Corporation Electro-acoustic transducer and method of manufacturing such a transducer
US4071111A (en) * 1976-04-28 1978-01-31 Acoustic Fiber Sound Systems, Inc. Weatherproof loudspeaker assembly and method of making same
JPS59149496A (en) * 1983-02-16 1984-08-27 Onkyo Corp Assembly of dynamic speaker
DE4142455A1 (en) * 1991-12-20 1993-06-24 Hoechst Ceram Tec Ag Loudspeaker prodn. for increasing acoustic pressure or giving determined resonant response - comprises bonding metallised piezoceramic disc to metal carrier plate with non-conductive adhesive contg. filler with specified viscosity
EP0614327A1 (en) * 1993-03-04 1994-09-07 Koninklijke Philips Electronics N.V. Electroacoustic transducer having a partition wall and a mask wall
DE19529848C1 (en) * 1995-08-12 1997-01-23 Bosch Gmbh Robert Conical loudspeaker centring section fixing system
WO1997009842A2 (en) * 1995-09-02 1997-03-13 New Transducers Limited Acoustic device
US5699439A (en) * 1994-06-01 1997-12-16 Nokia Technology Gmbh Loudspeakers

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4029911A (en) * 1975-04-29 1977-06-14 U.S. Philips Corporation Electro-acoustic transducer and method of manufacturing such a transducer
US4071111A (en) * 1976-04-28 1978-01-31 Acoustic Fiber Sound Systems, Inc. Weatherproof loudspeaker assembly and method of making same
JPS59149496A (en) * 1983-02-16 1984-08-27 Onkyo Corp Assembly of dynamic speaker
DE4142455A1 (en) * 1991-12-20 1993-06-24 Hoechst Ceram Tec Ag Loudspeaker prodn. for increasing acoustic pressure or giving determined resonant response - comprises bonding metallised piezoceramic disc to metal carrier plate with non-conductive adhesive contg. filler with specified viscosity
EP0614327A1 (en) * 1993-03-04 1994-09-07 Koninklijke Philips Electronics N.V. Electroacoustic transducer having a partition wall and a mask wall
US5699439A (en) * 1994-06-01 1997-12-16 Nokia Technology Gmbh Loudspeakers
DE19529848C1 (en) * 1995-08-12 1997-01-23 Bosch Gmbh Robert Conical loudspeaker centring section fixing system
WO1997009842A2 (en) * 1995-09-02 1997-03-13 New Transducers Limited Acoustic device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 008, no. 281 (E - 286) 21 December 1984 (1984-12-21) *

Also Published As

Publication number Publication date
WO2000069214A2 (en) 2000-11-16
AU4419600A (en) 2000-11-21
TW474110B (en) 2002-01-21

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