GB2301507B - Electromagnetic loudspeaker - Google Patents

Electromagnetic loudspeaker

Info

Publication number
GB2301507B
GB2301507B GB9617999A GB9617999A GB2301507B GB 2301507 B GB2301507 B GB 2301507B GB 9617999 A GB9617999 A GB 9617999A GB 9617999 A GB9617999 A GB 9617999A GB 2301507 B GB2301507 B GB 2301507B
Authority
GB
United Kingdom
Prior art keywords
electromagnetic loudspeaker
loudspeaker
electromagnetic
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
GB9617999A
Other versions
GB2301507A (en
GB9617999D0 (en
Inventor
Jonathan Neil Smith
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
Priority claimed from GB9404585A external-priority patent/GB9404585D0/en
Application filed by Individual filed Critical Individual
Priority to GB9617999A priority Critical patent/GB2301507B/en
Publication of GB9617999D0 publication Critical patent/GB9617999D0/en
Publication of GB2301507A publication Critical patent/GB2301507A/en
Application granted granted Critical
Publication of GB2301507B publication Critical patent/GB2301507B/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
    • H04R9/02—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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/24—Tensioning by means acting directly on free portions of diaphragm or cone

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
GB9617999A 1994-03-08 1995-02-28 Electromagnetic loudspeaker Expired - Fee Related GB2301507B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9617999A GB2301507B (en) 1994-03-08 1995-02-28 Electromagnetic loudspeaker

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9404585A GB9404585D0 (en) 1994-03-08 1994-03-08 Loudspeaker
PCT/GB1995/000424 WO1995024815A1 (en) 1994-03-08 1995-02-28 Electromagnetic loudspeaker
GB9617999A GB2301507B (en) 1994-03-08 1995-02-28 Electromagnetic loudspeaker

Publications (3)

Publication Number Publication Date
GB9617999D0 GB9617999D0 (en) 1996-10-09
GB2301507A GB2301507A (en) 1996-12-04
GB2301507B true GB2301507B (en) 1997-11-19

Family

ID=26304462

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9617999A Expired - Fee Related GB2301507B (en) 1994-03-08 1995-02-28 Electromagnetic loudspeaker

Country Status (1)

Country Link
GB (1) GB2301507B (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB468624A (en) * 1934-12-03 1937-07-05 Joseph Massolle G M B H Improvements in or relating to electrostatic sound receivers and reproducers
DE1161591B (en) * 1962-08-14 1964-01-23 Isophon Werke G M B H Static speaker
US3674946A (en) * 1970-12-23 1972-07-04 Magnepan Inc Electromagnetic transducer
FR2335118A1 (en) * 1975-12-11 1977-07-08 Rank Organisation Ltd ELECTRO-ACOUSTIC TRANSDUCER, ESPECIALLY FOR SPEAKER AND EARPHONES
US4081626A (en) * 1976-11-12 1978-03-28 Polaroid Corporation Electrostatic transducer having narrowed directional characteristic
US4480155A (en) * 1982-03-01 1984-10-30 Magnepan, Inc. Diaphragm type magnetic transducer
JPS6390300A (en) * 1986-10-03 1988-04-21 Matsushita Electric Ind Co Ltd Diaphragm for speaker
US4803733A (en) * 1986-12-16 1989-02-07 Carver R W Loudspeaker diaphragm mounting system and method

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB468624A (en) * 1934-12-03 1937-07-05 Joseph Massolle G M B H Improvements in or relating to electrostatic sound receivers and reproducers
DE1161591B (en) * 1962-08-14 1964-01-23 Isophon Werke G M B H Static speaker
US3674946A (en) * 1970-12-23 1972-07-04 Magnepan Inc Electromagnetic transducer
FR2335118A1 (en) * 1975-12-11 1977-07-08 Rank Organisation Ltd ELECTRO-ACOUSTIC TRANSDUCER, ESPECIALLY FOR SPEAKER AND EARPHONES
US4081626A (en) * 1976-11-12 1978-03-28 Polaroid Corporation Electrostatic transducer having narrowed directional characteristic
US4480155A (en) * 1982-03-01 1984-10-30 Magnepan, Inc. Diaphragm type magnetic transducer
JPS6390300A (en) * 1986-10-03 1988-04-21 Matsushita Electric Ind Co Ltd Diaphragm for speaker
US4803733A (en) * 1986-12-16 1989-02-07 Carver R W Loudspeaker diaphragm mounting system and method

Also Published As

Publication number Publication date
GB2301507A (en) 1996-12-04
GB9617999D0 (en) 1996-10-09

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Legal Events

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

Effective date: 19990228