EP0924959A3 - Schallwiedergabeanordnung - Google Patents

Schallwiedergabeanordnung Download PDF

Info

Publication number
EP0924959A3
EP0924959A3 EP98123819A EP98123819A EP0924959A3 EP 0924959 A3 EP0924959 A3 EP 0924959A3 EP 98123819 A EP98123819 A EP 98123819A EP 98123819 A EP98123819 A EP 98123819A EP 0924959 A3 EP0924959 A3 EP 0924959A3
Authority
EP
European Patent Office
Prior art keywords
panel
bending waves
recess
prior
art
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
EP98123819A
Other languages
English (en)
French (fr)
Other versions
EP0924959A2 (de
EP0924959B1 (de
Inventor
Wolfgang Bachmann
Gerhard 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 Audio Electronic 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 Audio Electronic Systems GmbH filed Critical Harman Audio Electronic Systems GmbH
Publication of EP0924959A2 publication Critical patent/EP0924959A2/de
Publication of EP0924959A3 publication Critical patent/EP0924959A3/de
Application granted granted Critical
Publication of EP0924959B1 publication Critical patent/EP0924959B1/de
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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/045—Mounting
    • 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
    • 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
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • 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
    • 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
    • H04R9/063—Loudspeakers using a plurality of acoustic drivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

Erfindungsgemäß wird eine Schallwiedergabeanordnung angegeben, welche nach dem Biegewellenprinzip arbeitet. Solchen Anordnungen ist gemein, daß ein Paneel 10 vorhanden ist, in welchem durch eine Antriebsanordnung 16 Biegewellen erzeugt werden. Gemäß dem Stand der Technik sind die Antriebsanordnungen 16 mit einer der Oberflächen des Paneels 10 verbunden und werden durch eine Stützkonstruktion, welche als Gegenlager wirkt, gehalten. Derartige Stützkonstruktionen behindern entweder die Ausbreitung der Biegewellen entlang der Oberfläche des Paneels 10 und/oder führen zu einer Vergrößerung der Bautiefe einer solchen Schallwiedergabeanordnung. Um diese Nachteile im Stand der Technik zu vermeiden, wird angegeben, das Antriebssystem 16 in einer Ausnehmung 15 des Paneels 10 anzuordnen. Dies hat nicht nur den zusätzlichen Vorteil, daß das Aussehen des Paneels 10 an beiden Oberflächen vereinheitlicht werden kann, sondern auch den, daß durch die Schwächung des Paneels 10 im Bereich der Ausnehmung 15 die Leistung zur Erzeugung von Biegewellen reduziert bzw. bei gleicher Leistung ein zur Tieftonwiedergabe erforderliches Schwingverhalten herbeigeführt werden kann.
EP98123819A 1997-12-20 1998-12-15 Schallwiedergabeanordnung Expired - Lifetime EP0924959B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19757097A DE19757097B4 (de) 1997-12-20 1997-12-20 Schallwiedergabeanordnung
DE19757097 1997-12-20

Publications (3)

Publication Number Publication Date
EP0924959A2 EP0924959A2 (de) 1999-06-23
EP0924959A3 true EP0924959A3 (de) 2005-04-20
EP0924959B1 EP0924959B1 (de) 2009-11-25

Family

ID=7852891

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98123819A Expired - Lifetime EP0924959B1 (de) 1997-12-20 1998-12-15 Schallwiedergabeanordnung

Country Status (4)

Country Link
US (1) US6275598B1 (de)
EP (1) EP0924959B1 (de)
JP (1) JPH11252673A (de)
DE (2) DE19757097B4 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19821860A1 (de) 1998-05-15 1999-11-18 Nokia Deutschland Gmbh Treiber für flaches Klangpaneel
DE19821855A1 (de) 1998-05-15 1999-11-18 Nokia Deutschland Gmbh Plattenlautsprecher
DE19821862A1 (de) 1998-05-15 1999-11-18 Nokia Deutschland Gmbh Schallwiedergabeanordnung
DE19825866A1 (de) 1998-06-10 1999-12-16 Nokia Deutschland Gmbh Plattenlautsprecher
DE19840375C2 (de) 1998-09-04 2003-08-28 Harman Audio Electronic Sys Schallwand
DE19843079A1 (de) 1998-09-19 2000-03-23 Nokia Deutschland Gmbh Multiresonanzplatte
DE10001410C2 (de) * 2000-01-14 2001-12-06 Harman Audio Electronic Sys Flachlautsprecheranordnung
DE10025460B4 (de) 2000-05-23 2004-03-18 Harman Audio Electronic Systems Gmbh Hochtonlautsprecher
DE10058102C2 (de) * 2000-11-23 2003-07-03 Harman Audio Electronic Sys Elektrodynamischer Biegemomententreiber
DE10058104C2 (de) * 2000-11-23 2003-10-30 Harman Audio Electronic Sys Elektromagnetischer Treiber für einen Plattenlautsprecher
EP1410680B1 (de) * 2001-07-13 2010-12-15 Harman Becker Automotive Systems GmbH Plattenlautsprecher
US7109959B2 (en) 2002-02-06 2006-09-19 Andersen Corporation Multi-task window
US7180489B2 (en) * 2002-02-06 2007-02-20 Andersen Corporation Automated multi-task window assembly
GB0221503D0 (en) * 2002-09-17 2002-10-23 1 Ltd Loudspeaker
DE102007035189A1 (de) * 2007-07-25 2009-02-05 Siemens Ag Vorrichtung zum Einkoppeln mechanischer Schwingungen in ein flächiges, biegesteifes Schallabgabeelement und Flächenlautsprecher
DE102008027385B4 (de) * 2008-06-09 2019-04-25 Fischer Profil Gmbh Sandwichelement für die Erstellung von Wänden und Dächern
NL1038214C2 (nl) * 2010-09-01 2012-03-05 Verburg Audio B V Meubel met geintegreerde luidspreker en werkwijzen voor het integreren van een luidspreker in een m eubel.
US9154862B2 (en) * 2013-06-27 2015-10-06 The Boeing Company Flat panel loudspeaker system
DE102021124624A1 (de) 2021-09-23 2023-03-23 LiMES - Immersive Solutions GmbH Schallwand

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2112516B1 (de) * 1971-03-16 1972-10-19 Kurtze Guenther Dipl Phys Prof Richtlautsprecher
US4322583A (en) * 1978-11-20 1982-03-30 Sony Corporation Voice coil bobbin connection to loudspeaker diaphragm of honeycomb core sandwiched by sheets
JPS59210791A (ja) * 1984-04-17 1984-11-29 Matsushita Electric Ind Co Ltd スピ−カ用振動板
JPS60185498A (ja) * 1984-12-24 1985-09-20 Sony Corp スピ−カ
WO1997009862A1 (en) * 1995-09-02 1997-03-13 New Transducers Limited Panel-form microphones
WO1997009861A1 (en) * 1995-09-02 1997-03-13 New Transducers Limited Inertial vibration transducers
WO1997009859A1 (en) * 1995-09-02 1997-03-13 New Transducers Limited Inertial vibration transducers

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4322584A (en) * 1979-06-30 1982-03-30 Pioneer Electronic Corporation Voice coil bobbin for planar diaphragm
JPS57113697A (en) * 1981-01-05 1982-07-15 Murata Mfg Co Ltd Piezoelectric type speaker
US4969197A (en) * 1988-06-10 1990-11-06 Murata Manufacturing Piezoelectric speaker
US5031222A (en) * 1988-07-22 1991-07-09 Murata Manufacturing Co., Ltd. Piezoelectric speaker
US5007707A (en) * 1989-10-30 1991-04-16 Bertagni Jose J Integrated sound and video screen
US5445861A (en) * 1992-09-04 1995-08-29 The Boeing Company Lightweight honeycomb panel structure
US5702230A (en) * 1996-01-29 1997-12-30 General Electric Company Actively controlled acoustic treatment panel

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2112516B1 (de) * 1971-03-16 1972-10-19 Kurtze Guenther Dipl Phys Prof Richtlautsprecher
US4322583A (en) * 1978-11-20 1982-03-30 Sony Corporation Voice coil bobbin connection to loudspeaker diaphragm of honeycomb core sandwiched by sheets
JPS59210791A (ja) * 1984-04-17 1984-11-29 Matsushita Electric Ind Co Ltd スピ−カ用振動板
JPS60185498A (ja) * 1984-12-24 1985-09-20 Sony Corp スピ−カ
WO1997009862A1 (en) * 1995-09-02 1997-03-13 New Transducers Limited Panel-form microphones
WO1997009861A1 (en) * 1995-09-02 1997-03-13 New Transducers Limited Inertial vibration transducers
WO1997009859A1 (en) * 1995-09-02 1997-03-13 New Transducers Limited Inertial vibration transducers

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 009, no. 075 (E - 306) 4 April 1985 (1985-04-04) *
PATENT ABSTRACTS OF JAPAN vol. 010, no. 027 (E - 378) 4 February 1986 (1986-02-04) *

Also Published As

Publication number Publication date
EP0924959A2 (de) 1999-06-23
JPH11252673A (ja) 1999-09-17
DE19757097B4 (de) 2004-04-15
DE19757097A1 (de) 1999-06-24
US6275598B1 (en) 2001-08-14
DE59814415D1 (de) 2010-01-07
EP0924959B1 (de) 2009-11-25

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