EP1158834A3 - High frequency loudspeaker - Google Patents

High frequency loudspeaker Download PDF

Info

Publication number
EP1158834A3
EP1158834A3 EP01107224A EP01107224A EP1158834A3 EP 1158834 A3 EP1158834 A3 EP 1158834A3 EP 01107224 A EP01107224 A EP 01107224A EP 01107224 A EP01107224 A EP 01107224A EP 1158834 A3 EP1158834 A3 EP 1158834A3
Authority
EP
European Patent Office
Prior art keywords
sandwich plate
driver
high frequency
sandwich
frequency 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.)
Granted
Application number
EP01107224A
Other languages
German (de)
French (fr)
Other versions
EP1158834A2 (en
EP1158834B1 (en
Inventor
Wolfgang Dr. Bachmann
Gerhard Dr. Krump
Hans-Jürgen Regl
Andreas Ziganki
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 EP1158834A2 publication Critical patent/EP1158834A2/en
Publication of EP1158834A3 publication Critical patent/EP1158834A3/en
Application granted granted Critical
Publication of EP1158834B1 publication Critical patent/EP1158834B1/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
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • H04R7/10—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact
    • 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
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • 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 
    • H04R1/24—Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/021—Diaphragms comprising cellulose-like materials, e.g. wood, paper, linen
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/025—Diaphragms comprising polymeric materials
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/027—Diaphragms comprising metallic materials
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/029—Diaphragms comprising fibres
    • 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)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)

Abstract

Hochtonlautsprecher mit einer leichten, dünnen Sandwichplatte, die zu vielfach reflektierten Biegewellen anregbar ist, und einem mit der Sandwichplatte in Schwingungsverbindung stehenden Treiber zum Anregen der Sandwichplatte, bei dem der Treiber zur Anregung bei höheren Schallfrequenzen und die Sandwichplatte zur dämpfungsarmen Ausbreitung von Biegewellen ausgebildet ist. Die Sandwichplatte ist freitragend und dämpfungsarm mittels Halterungselementen gehaltert, wobei die Halterungselemente dämpfungsarm bei höheren Schallfrequenzen ausgebildet sind.

Figure imgaf001
Tweeter with a light, thin sandwich plate that is excitable to multiply reflected bending waves, and a driver sandwiched with the sandwich plate to energize the sandwich plate, where the driver is designed to excite at higher frequencies of sound and the sandwich plate to provide low attenuation propagation of flexural waves. The sandwich panel is supported cantilevered and low-damping by means of support elements, wherein the support members are formed with low attenuation at higher sound frequencies.
Figure imgaf001
EP01107224A 2000-05-23 2001-03-17 High frequency loudspeaker Expired - Lifetime EP1158834B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10025460A DE10025460B4 (en) 2000-05-23 2000-05-23 tweeter
DE10025460 2000-05-23

Publications (3)

Publication Number Publication Date
EP1158834A2 EP1158834A2 (en) 2001-11-28
EP1158834A3 true EP1158834A3 (en) 2007-05-02
EP1158834B1 EP1158834B1 (en) 2011-01-19

Family

ID=7643216

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01107224A Expired - Lifetime EP1158834B1 (en) 2000-05-23 2001-03-17 High frequency loudspeaker

Country Status (3)

Country Link
US (1) US6888946B2 (en)
EP (1) EP1158834B1 (en)
DE (2) DE10025460B4 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19821855A1 (en) 1998-05-15 1999-11-18 Nokia Deutschland Gmbh Flat panel loudspeaker
DE19821862A1 (en) 1998-05-15 1999-11-18 Nokia Deutschland Gmbh Flat panel loudspeaker
DE19825866A1 (en) 1998-06-10 1999-12-16 Nokia Deutschland Gmbh Record speakers
DE19843079A1 (en) 1998-09-19 2000-03-23 Nokia Deutschland Gmbh Multi-resonance plate
DE10001410C2 (en) * 2000-01-14 2001-12-06 Harman Audio Electronic Sys Flat speaker arrangement
US20030142814A1 (en) * 2002-01-31 2003-07-31 Roy Kenneth P. Architectural sound enhancement with DTMF control
US7548854B2 (en) 2002-01-31 2009-06-16 Awi Licensing Company Architectural sound enhancement with pre-filtered masking sound
US20030142833A1 (en) * 2002-01-31 2003-07-31 Roy Kenneth P. Architectural sound enhancement with test tone diagnostics
US6983819B2 (en) * 2002-04-02 2006-01-10 Awi Licensing Company Entertainment sound panels
US20030198339A1 (en) * 2002-04-19 2003-10-23 Roy Kenneth P. Enhanced sound processing system for use with sound radiators
GB0211508D0 (en) 2002-05-20 2002-06-26 New Transducers Ltd Transducer
US7403628B2 (en) * 2004-04-07 2008-07-22 Sony Ericsson Mobile Communications Ab Transducer assembly and loudspeaker including rheological material
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
US10631072B2 (en) 2018-06-25 2020-04-21 Google Llc Actuator for distributed mode loudspeaker with extended damper and systems including the same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR561357A (en) * 1922-01-26 1923-10-20 Signal Ges M B H Soc Membrane for hearing devices
GB2246684A (en) * 1990-08-04 1992-02-05 Secr Defence Panel form loudspeaker
WO1993021743A1 (en) * 1992-04-09 1993-10-28 Bertagni Electronic Sound Transducers, International Corporation Planar-type loudspeaker with dual density diaphragm
WO1997009842A2 (en) * 1995-09-02 1997-03-13 New Transducers Limited Acoustic device
WO2000015000A1 (en) * 1998-09-02 2000-03-16 New Transducers Limited Panel form acoustic apparatus using bending waves modes

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1132593B (en) * 1965-04-05 1962-07-05 Bolt Beranek & Newman Acoustically effective plate, especially for coupling to an electroacoustic transducer
JPS55161496A (en) * 1979-05-31 1980-12-16 Matsushita Electric Ind Co Ltd Diaphragm for speaker and its production
US6188775B1 (en) * 1995-09-02 2001-02-13 New Transducers Limited Panel-form loudspeakers
US6151402A (en) * 1995-09-02 2000-11-21 New Transducers Limited Vibration transducers
US6519349B1 (en) * 1995-09-02 2003-02-11 New Transducers Limited Loudspeaker
US6282298B1 (en) * 1996-09-03 2001-08-28 New Transducers Limited Acoustic device
DE19757097B4 (en) * 1997-12-20 2004-04-15 Harman Audio Electronic Systems Gmbh Sound reproduction device
US6327329B1 (en) * 1998-08-25 2001-12-04 General Electric Company Methods and apparatus for monitoring detector image quality

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR561357A (en) * 1922-01-26 1923-10-20 Signal Ges M B H Soc Membrane for hearing devices
GB2246684A (en) * 1990-08-04 1992-02-05 Secr Defence Panel form loudspeaker
WO1993021743A1 (en) * 1992-04-09 1993-10-28 Bertagni Electronic Sound Transducers, International Corporation Planar-type loudspeaker with dual density diaphragm
WO1997009842A2 (en) * 1995-09-02 1997-03-13 New Transducers Limited Acoustic device
WO2000015000A1 (en) * 1998-09-02 2000-03-16 New Transducers Limited Panel form acoustic apparatus using bending waves modes

Also Published As

Publication number Publication date
DE10025460B4 (en) 2004-03-18
US20010055403A1 (en) 2001-12-27
DE50115777D1 (en) 2011-03-03
EP1158834A2 (en) 2001-11-28
EP1158834B1 (en) 2011-01-19
DE10025460A1 (en) 2001-12-06
US6888946B2 (en) 2005-05-03

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