GB2364847B - Compound loudspeaker having a magnet system - Google Patents

Compound loudspeaker having a magnet system

Info

Publication number
GB2364847B
GB2364847B GB0017072A GB0017072A GB2364847B GB 2364847 B GB2364847 B GB 2364847B GB 0017072 A GB0017072 A GB 0017072A GB 0017072 A GB0017072 A GB 0017072A GB 2364847 B GB2364847 B GB 2364847B
Authority
GB
United Kingdom
Prior art keywords
magnet system
compound loudspeaker
loudspeaker
compound
magnet
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.)
Expired - Fee Related
Application number
GB0017072A
Other versions
GB2364847A (en
GB0017072D0 (en
Inventor
Philip Jeffrey Anthony
Enrico Cecconi
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.)
KEF Audio UK Ltd
Original Assignee
KEF Audio UK 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
Application filed by KEF Audio UK Ltd filed Critical KEF Audio UK Ltd
Priority to GB0017072A priority Critical patent/GB2364847B/en
Publication of GB0017072D0 publication Critical patent/GB0017072D0/en
Priority to CA002352732A priority patent/CA2352732A1/en
Priority to EP01116801A priority patent/EP1173042A3/en
Priority to JP2001210602A priority patent/JP2002078086A/en
Priority to CN01125945.0A priority patent/CN1348321A/en
Priority to AU54319/01A priority patent/AU5431901A/en
Publication of GB2364847A publication Critical patent/GB2364847A/en
Priority to US10/803,584 priority patent/US20040175016A1/en
Priority to US10/803,676 priority patent/US20040202342A1/en
Application granted granted Critical
Publication of GB2364847B publication Critical patent/GB2364847B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • 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
    • 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
    • H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
    • H04R2209/022—Aspects regarding the stray flux internal or external to the magnetic circuit, e.g. shielding, shape of magnetic circuit, flux compensation coils

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
GB0017072A 2000-07-11 2000-07-11 Compound loudspeaker having a magnet system Expired - Fee Related GB2364847B (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB0017072A GB2364847B (en) 2000-07-11 2000-07-11 Compound loudspeaker having a magnet system
CA002352732A CA2352732A1 (en) 2000-07-11 2001-07-09 Compound loudspeaker drive unit having a magnet system
EP01116801A EP1173042A3 (en) 2000-07-11 2001-07-10 Compound loudspeaker drive unit having a magnet system
CN01125945.0A CN1348321A (en) 2000-07-11 2001-07-11 Combined loudspeaker with magnet system
JP2001210602A JP2002078086A (en) 2000-07-11 2001-07-11 High frequency transducer and high frequency speaker
AU54319/01A AU5431901A (en) 2000-07-11 2001-07-11 Compound loudspeaker having a magnet system
US10/803,584 US20040175016A1 (en) 2000-07-11 2004-03-18 Compound loudspeaker having a magnet system
US10/803,676 US20040202342A1 (en) 2000-07-11 2004-03-18 Compound loudspeaker drive unit having a magnet system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0017072A GB2364847B (en) 2000-07-11 2000-07-11 Compound loudspeaker having a magnet system

Publications (3)

Publication Number Publication Date
GB0017072D0 GB0017072D0 (en) 2000-08-30
GB2364847A GB2364847A (en) 2002-02-06
GB2364847B true GB2364847B (en) 2004-10-13

Family

ID=9895485

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0017072A Expired - Fee Related GB2364847B (en) 2000-07-11 2000-07-11 Compound loudspeaker having a magnet system

Country Status (1)

Country Link
GB (1) GB2364847B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2377849A (en) 2001-07-21 2003-01-22 Kh Technology Corp Loudspeaker drive units with smooth transition to surround
GB2426884B (en) 2005-03-02 2008-05-28 Kh Technology Corp Electro-acoustic transducer
GB2423908B (en) * 2005-03-02 2008-04-02 Kh Technology Corp Loudspeaker
GB2442260A (en) * 2006-09-29 2008-04-02 Martin Audio Ltd Loudspeaker diaphragm conforms to surrounding acoustic surface
GB2543322A (en) * 2015-10-14 2017-04-19 Music Group Ip Ltd Loudspeaker

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2153628A (en) * 1984-01-27 1985-08-21 Tannoy Ltd Moving coil loudspeaker
GB2160389A (en) * 1984-06-14 1985-12-18 John Strohbeen Improved multidriver loudspeaker
EP0242856A2 (en) * 1986-04-21 1987-10-28 Thomas Deuble Coaxial loud speaker
EP0341926A1 (en) * 1988-05-09 1989-11-15 Kh Technology Corporation Loudspeaker
GB2250658A (en) * 1990-12-07 1992-06-10 Canon Res Ct Europe Ltd Loudspeaker
WO1998042160A2 (en) * 1997-03-17 1998-09-24 Sorus Audio Ag Broadband loudspeaker

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2153628A (en) * 1984-01-27 1985-08-21 Tannoy Ltd Moving coil loudspeaker
GB2160389A (en) * 1984-06-14 1985-12-18 John Strohbeen Improved multidriver loudspeaker
EP0242856A2 (en) * 1986-04-21 1987-10-28 Thomas Deuble Coaxial loud speaker
EP0341926A1 (en) * 1988-05-09 1989-11-15 Kh Technology Corporation Loudspeaker
GB2250658A (en) * 1990-12-07 1992-06-10 Canon Res Ct Europe Ltd Loudspeaker
WO1998042160A2 (en) * 1997-03-17 1998-09-24 Sorus Audio Ag Broadband loudspeaker

Also Published As

Publication number Publication date
GB2364847A (en) 2002-02-06
GB0017072D0 (en) 2000-08-30

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Effective date: 20050113

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