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GB2489535B - Loudspeaker - Google Patents

Loudspeaker

Info

Publication number
GB2489535B
GB2489535B GB1109335.8A GB201109335A GB2489535B GB 2489535 B GB2489535 B GB 2489535B GB 201109335 A GB201109335 A GB 201109335A GB 2489535 B GB2489535 B GB 2489535B
Authority
GB
United Kingdom
Prior art keywords
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.)
Expired - Fee Related
Application number
GB1109335.8A
Other versions
GB201109335D0 (en
GB2489535A (en
Inventor
Peter Cooke Michael
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB201109335D0 publication Critical patent/GB201109335D0/en
Publication of GB2489535A publication Critical patent/GB2489535A/en
Application granted granted Critical
Publication of GB2489535B publication Critical patent/GB2489535B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • H04R9/046—Construction
    • H04R9/047—Construction in which the windings of the moving coil lay in the same plane
    • 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
    • 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
    • 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
    • H04R9/06—Loudspeakers
    • H04R9/063—Loudspeakers using a plurality of acoustic drivers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
GB1109335.8A 2011-03-26 2011-06-03 Loudspeaker Expired - Fee Related GB2489535B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB1105139.8A GB201105139D0 (en) 2011-03-26 2011-03-26 Loudspeaker

Publications (3)

Publication Number Publication Date
GB201109335D0 GB201109335D0 (en) 2011-07-20
GB2489535A GB2489535A (en) 2012-10-03
GB2489535B true GB2489535B (en) 2018-02-28

Family

ID=44067451

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB1105139.8A Ceased GB201105139D0 (en) 2011-03-26 2011-03-26 Loudspeaker
GB1109335.8A Expired - Fee Related GB2489535B (en) 2011-03-26 2011-06-03 Loudspeaker

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB1105139.8A Ceased GB201105139D0 (en) 2011-03-26 2011-03-26 Loudspeaker

Country Status (1)

Country Link
GB (2) GB201105139D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9130445B1 (en) 2014-08-04 2015-09-08 David Micah Katz Electromechanical transducer with non-circular voice coil
CN109391881B (en) * 2017-11-30 2024-01-19 深圳市吉瑞德隆电子科技有限公司 Plane vibrating diaphragm loudspeaker

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2608071A1 (en) * 1976-02-26 1977-09-08 Reinhard Ing Grad Pechal Polyplanar magnetostatic loudspeaker system - has membrane carrying conductors cut by field lines from rows of permanent magnets
EP0296139A2 (en) * 1987-06-18 1988-12-21 Highwood Audio Inc. Audio transducer
GB2474848A (en) * 2009-10-27 2011-05-04 Michael Peter Cooke Planar loudspeaker

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2608071A1 (en) * 1976-02-26 1977-09-08 Reinhard Ing Grad Pechal Polyplanar magnetostatic loudspeaker system - has membrane carrying conductors cut by field lines from rows of permanent magnets
EP0296139A2 (en) * 1987-06-18 1988-12-21 Highwood Audio Inc. Audio transducer
GB2474848A (en) * 2009-10-27 2011-05-04 Michael Peter Cooke Planar loudspeaker

Also Published As

Publication number Publication date
GB201109335D0 (en) 2011-07-20
GB2489535A (en) 2012-10-03
GB201105139D0 (en) 2011-05-11

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20240603