EP1408717A3 - Combination loudspeaker unit - Google Patents

Combination loudspeaker unit Download PDF

Info

Publication number
EP1408717A3
EP1408717A3 EP03255099A EP03255099A EP1408717A3 EP 1408717 A3 EP1408717 A3 EP 1408717A3 EP 03255099 A EP03255099 A EP 03255099A EP 03255099 A EP03255099 A EP 03255099A EP 1408717 A3 EP1408717 A3 EP 1408717A3
Authority
EP
European Patent Office
Prior art keywords
loudspeaker
diaphragm
resonant panel
functioning
loudspeaker unit
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
EP03255099A
Other languages
German (de)
French (fr)
Other versions
EP1408717B1 (en
EP1408717A2 (en
Inventor
Mark Dodd
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.)
KH Technology Corp
Original Assignee
KH Technology Corp
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 GBGB0219245.8A external-priority patent/GB0219245D0/en
Priority claimed from GB0317445A external-priority patent/GB0317445D0/en
Application filed by KH Technology Corp filed Critical KH Technology Corp
Publication of EP1408717A2 publication Critical patent/EP1408717A2/en
Publication of EP1408717A3 publication Critical patent/EP1408717A3/en
Application granted granted Critical
Publication of EP1408717B1 publication Critical patent/EP1408717B1/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
    • 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
    • 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
    • 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 
    • H04R1/26—Spatial arrangements of separate transducers responsive 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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/323—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only for loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2205/00—Details of stereophonic arrangements covered by H04R5/00 but not provided for in any of its subgroups
    • H04R2205/022—Plurality of transducers corresponding to a plurality of sound channels in each earpiece of headphones or in a single enclosure
    • 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
    • H04R2440/07—Loudspeakers using bending wave resonance and pistonic motion to generate sound

Abstract

A loudspeaker unit comprises, in combination, a pistonically driven diaphragm loudspeaker and a generally planar resonant panel loudspeaker, in which the plane of the resonant panel lies in the same orientation as an axis along which the diaphragm is pistonically driven. The resonant panel loudspeaker may be located behind the diaphragm loudspeaker, with the resonant panel loudspeaker functioning as a diffuse dipole, e.g. to generate surround sound reproduction, and the diaphragm loudspeaker located in the null of the dipole and functioning as an acoustic monopole, e.g. to generate imaged stereophonic sound reproduction.
EP03255099A 2002-08-17 2003-08-18 Combination loudspeaker unit Expired - Lifetime EP1408717B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0219245 2002-08-17
GBGB0219245.8A GB0219245D0 (en) 2002-08-17 2002-08-17 Combination loudspeaker unit
GB0317445A GB0317445D0 (en) 2003-07-25 2003-07-25 Combination loudspeaker unit
GB0317445 2003-07-25

Publications (3)

Publication Number Publication Date
EP1408717A2 EP1408717A2 (en) 2004-04-14
EP1408717A3 true EP1408717A3 (en) 2004-08-04
EP1408717B1 EP1408717B1 (en) 2006-03-01

Family

ID=28456042

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03255099A Expired - Lifetime EP1408717B1 (en) 2002-08-17 2003-08-18 Combination loudspeaker unit

Country Status (7)

Country Link
EP (1) EP1408717B1 (en)
AT (1) ATE319279T1 (en)
DE (1) DE60303748T2 (en)
DK (1) DK1408717T3 (en)
ES (1) ES2260580T3 (en)
GB (1) GB2392043B (en)
PT (1) PT1408717E (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2425675B (en) * 2005-04-28 2008-07-23 Gp Acoustics Audio system
EP1814354B1 (en) * 2006-01-30 2017-04-26 Sony Corporation Speaker
GB0603545D0 (en) * 2006-02-22 2006-04-05 Fletcher Edward S Apparatus and method for reproduction of stereo sound
GB0723920D0 (en) * 2007-12-06 2008-01-16 Airsound Llp An improved apparatus and method for reproduction of stereo sound
DE102008016703A1 (en) 2008-03-31 2009-10-01 Joachim Gerhard Loudspeaker arrangement for use at open cross baffle in living room for music reproduction, has low-range loudspeakers attached to perpendicular middle wall, and high-range and mid-range loudspeakers eccentrically attached to cross wall

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3291251A (en) * 1966-03-14 1966-12-13 Stanley A Strzelecki Sr Divided panel board for hi-fi speaker systems
DE3904943A1 (en) * 1989-02-17 1990-09-20 Pfleiderer Peter Loudspeaker arrangement for improving the acoustic sound impression in living rooms
DE19955867A1 (en) * 1999-11-22 2001-06-21 Harman Audio Electronic Sys Flat speaker arrangement for bass reproduction
US6332029B1 (en) * 1995-09-02 2001-12-18 New Transducers Limited Acoustic device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9910220D0 (en) * 1999-04-29 1999-06-30 New Transducers Ltd Loudspeakers
DE20002930U1 (en) * 2000-02-20 2000-05-18 Theis Karl Heinz Horn speaker
GB2368484B (en) * 2000-10-25 2004-06-16 B & W Loudspeakers Distributed mode panel type loudspeakers
US7002070B2 (en) * 2001-06-22 2006-02-21 Shelley Katz Electronic piano
EP1588584A1 (en) * 2003-01-22 2005-10-26 Shelley Katz Apparatus and method for producing sound

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3291251A (en) * 1966-03-14 1966-12-13 Stanley A Strzelecki Sr Divided panel board for hi-fi speaker systems
DE3904943A1 (en) * 1989-02-17 1990-09-20 Pfleiderer Peter Loudspeaker arrangement for improving the acoustic sound impression in living rooms
US6332029B1 (en) * 1995-09-02 2001-12-18 New Transducers Limited Acoustic device
DE19955867A1 (en) * 1999-11-22 2001-06-21 Harman Audio Electronic Sys Flat speaker arrangement for bass reproduction

Also Published As

Publication number Publication date
DE60303748T2 (en) 2006-11-09
GB2392043B (en) 2006-03-22
ES2260580T3 (en) 2006-11-01
ATE319279T1 (en) 2006-03-15
DE60303748D1 (en) 2006-04-27
GB2392043A (en) 2004-02-18
GB0319297D0 (en) 2003-09-17
EP1408717B1 (en) 2006-03-01
EP1408717A2 (en) 2004-04-14
DK1408717T3 (en) 2006-07-10
PT1408717E (en) 2006-07-31

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