EP0987922A3 - Multi-resonant panel - Google Patents

Multi-resonant panel Download PDF

Info

Publication number
EP0987922A3
EP0987922A3 EP99114408A EP99114408A EP0987922A3 EP 0987922 A3 EP0987922 A3 EP 0987922A3 EP 99114408 A EP99114408 A EP 99114408A EP 99114408 A EP99114408 A EP 99114408A EP 0987922 A3 EP0987922 A3 EP 0987922A3
Authority
EP
European Patent Office
Prior art keywords
unit
air volume
frame
core layer
covering layers
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.)
Granted
Application number
EP99114408A
Other languages
German (de)
French (fr)
Other versions
EP0987922A2 (en
EP0987922B1 (en
Inventor
Wolfgang Prof. Dr. Bachmann
Gerhard Dr. Krump
Hans-Jürgen Regl
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.)
Harman Becker Automotive Systems GmbH
Original Assignee
Harman Becker Automotive Systems GmbH
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 Harman Becker Automotive Systems GmbH filed Critical Harman Becker Automotive Systems GmbH
Publication of EP0987922A2 publication Critical patent/EP0987922A2/en
Publication of EP0987922A3 publication Critical patent/EP0987922A3/en
Application granted granted Critical
Publication of EP0987922B1 publication Critical patent/EP0987922B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • H04R2440/00—Bending wave transducers covered by H04R, not provided for in its groups
    • H04R2440/01—Acoustic transducers using travelling bending waves to generate or detect sound

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Amplifiers (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Building Environments (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

The multi-resonance plate has a unit containing a core layer (11) and two covering layers (12.1,12.2). The covering layers are connected to opposing surfaces of the core layer. A frame (15) encloses the unit so as to leave an air volume (16). A suspension (17) connects the unit to the frame, enclosing the air volume. At least one electromagnetic driver acts on the unit. The entire drive electronic arrangement, which contains an output amplifier optimized for the particular driver, is integrated into the enclosed air volume.
EP99114408A 1998-09-19 1999-07-22 Multi-resonant panel Expired - Lifetime EP0987922B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843079 1998-09-19
DE19843079A DE19843079A1 (en) 1998-09-19 1998-09-19 Multi-resonance plate

Publications (3)

Publication Number Publication Date
EP0987922A2 EP0987922A2 (en) 2000-03-22
EP0987922A3 true EP0987922A3 (en) 2006-12-06
EP0987922B1 EP0987922B1 (en) 2007-09-12

Family

ID=7881602

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99114408A Expired - Lifetime EP0987922B1 (en) 1998-09-19 1999-07-22 Multi-resonant panel

Country Status (4)

Country Link
US (1) US6748090B1 (en)
EP (1) EP0987922B1 (en)
AT (1) ATE373400T1 (en)
DE (2) DE19843079A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE524284C2 (en) * 2002-04-18 2004-07-20 A2 Acoustics Ab Device for driving a diaphragm arranged in an opening to a space and vehicles comprising a device for driving a diaphragm arranged in an opening of the vehicle
US20080080734A1 (en) * 2006-10-03 2008-04-03 Forth Robert A Sports audio player and two-way voice/data communication device
DE102012025313B3 (en) * 2012-12-22 2014-02-20 Audi Ag Transducer for converting electrical signals into airborne sound, has frame that is formed by two frame elements, which are tightly connectable to each other, in frame plane
RU2754074C2 (en) 2015-09-14 2021-08-25 Уинг Акустикс Лимитэд Improvement of audio converters or improvements related to them
US11166100B2 (en) 2017-03-15 2021-11-02 Wing Acoustics Limited Bass optimization for audio systems and devices
TW201904310A (en) 2017-03-22 2019-01-16 紐西蘭商威恩音響有限公司 System, method and device for audio converter, thin electronic device and hinge system
WO2020118065A1 (en) * 2018-12-05 2020-06-11 Oda Inc. Speaker
CN209767821U (en) 2019-06-20 2019-12-10 苏州上声电子股份有限公司 loudspeaker driven by multipath input
CN210053564U (en) * 2019-07-02 2020-02-11 苏州茹声电子有限公司 Multi-input driven loudspeaker

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2112516B1 (en) * 1971-03-16 1972-10-19 Kurtze Guenther Dipl Phys Prof Directional loudspeaker
EP0720415A2 (en) * 1994-12-28 1996-07-03 Kabushiki Kaisha Kenwood Speaker component, speaker, and its manufacturing method
WO1997009861A1 (en) * 1995-09-02 1997-03-13 New Transducers Limited Inertial vibration transducers
WO1998022987A2 (en) * 1996-11-19 1998-05-28 Mctaggart Stephen I Laminated sheet product containing a printed battery

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2063945A (en) 1933-08-02 1936-12-15 Pierce George Washington Diaphragm and method
US3247925A (en) * 1962-03-08 1966-04-26 Lord Corp Loudspeaker
NL7308103A (en) * 1973-06-12 1974-12-16
JPS5748153Y2 (en) * 1977-11-26 1982-10-22
US4352961A (en) * 1979-06-15 1982-10-05 Hitachi, Ltd. Transparent flat panel piezoelectric speaker
US4625328A (en) * 1983-06-13 1986-11-25 Konutra Industries, Ltd. Integrated amplifier and speaker system with improved cooling efficiency
US5031222A (en) * 1988-07-22 1991-07-09 Murata Manufacturing Co., Ltd. Piezoelectric speaker
DE69106712T2 (en) * 1990-08-04 1995-06-08 Secr Defence Brit PANEL-SHAPED SPEAKER.
US5533132A (en) * 1995-01-23 1996-07-02 Jbl Incorporated Loudspeaker thermal management structure
UA51671C2 (en) 1995-09-02 2002-12-16 Нью Транзд'Юсез Лімітед Acoustic device
GB2305809B (en) 1995-09-28 1997-11-05 Harman Int Ind Power amplifier and loudspeaker frame integration
US5702230A (en) * 1996-01-29 1997-12-30 General Electric Company Actively controlled acoustic treatment panel
GB2319923B (en) * 1996-11-27 2000-09-27 Sony Uk Ltd Loudspeaker
US6243472B1 (en) * 1997-09-17 2001-06-05 Frank Albert Bilan Fully integrated amplified loudspeaker
DE19757098C2 (en) * 1997-12-20 2003-01-09 Harman Audio Electronic Sys Suspension for sound reproduction arrangements based on the bending wave principle
DE19757099A1 (en) 1997-12-20 1999-06-24 Nokia Deutschland Gmbh Contacting for a sound reproduction arrangement based on the bending wave principle
DE19757097B4 (en) 1997-12-20 2004-04-15 Harman Audio Electronic Systems Gmbh Sound reproduction device
JPH11275678A (en) * 1998-03-25 1999-10-08 Sony Corp Loudspeaker device
DE19821861A1 (en) 1998-05-15 1999-11-18 Nokia Deutschland Gmbh Device for dynamically exciting flat panel loudspeaker
DE19821860A1 (en) 1998-05-15 1999-11-18 Nokia Deutschland Gmbh Driver for flat panel loudspeaker
DE19821624A1 (en) 1998-05-15 1999-11-18 Nokia Deutschland Gmbh Projection screen with sound radiating segments
DE19840375C2 (en) 1998-09-04 2003-08-28 Harman Audio Electronic Sys baffle
DE10001410C2 (en) 2000-01-14 2001-12-06 Harman Audio Electronic Sys Flat speaker arrangement
DE10025460B4 (en) 2000-05-23 2004-03-18 Harman Audio Electronic Systems Gmbh tweeter
US6386315B1 (en) * 2000-07-28 2002-05-14 Awi Licensing Company Flat panel sound radiator and assembly system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2112516B1 (en) * 1971-03-16 1972-10-19 Kurtze Guenther Dipl Phys Prof Directional loudspeaker
EP0720415A2 (en) * 1994-12-28 1996-07-03 Kabushiki Kaisha Kenwood Speaker component, speaker, and its manufacturing method
WO1997009861A1 (en) * 1995-09-02 1997-03-13 New Transducers Limited Inertial vibration transducers
WO1998022987A2 (en) * 1996-11-19 1998-05-28 Mctaggart Stephen I Laminated sheet product containing a printed battery

Also Published As

Publication number Publication date
US6748090B1 (en) 2004-06-08
EP0987922A2 (en) 2000-03-22
ATE373400T1 (en) 2007-09-15
DE59914497D1 (en) 2007-10-25
DE19843079A1 (en) 2000-03-23
EP0987922B1 (en) 2007-09-12

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