GB2256560B - Loudspeaker - Google Patents

Loudspeaker

Info

Publication number
GB2256560B
GB2256560B GB9111737A GB9111737A GB2256560B GB 2256560 B GB2256560 B GB 2256560B GB 9111737 A GB9111737 A GB 9111737A GB 9111737 A GB9111737 A GB 9111737A GB 2256560 B GB2256560 B GB 2256560B
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
GB9111737A
Other versions
GB2256560A (en
GB9111737D0 (en
Inventor
Lawrence Reginald Fincham
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 Electronics Ltd
Original Assignee
KEF Electronics 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 Electronics Ltd filed Critical KEF Electronics Ltd
Priority to GB9111737A priority Critical patent/GB2256560B/en
Publication of GB9111737D0 publication Critical patent/GB9111737D0/en
Priority to PCT/GB1992/000970 priority patent/WO1992022175A1/en
Priority to NZ24296292A priority patent/NZ242962A/en
Priority to CA 2109711 priority patent/CA2109711A1/en
Priority to EP92304950A priority patent/EP0516471A1/en
Publication of GB2256560A publication Critical patent/GB2256560A/en
Priority to NO934298A priority patent/NO934298L/en
Application granted granted Critical
Publication of GB2256560B publication Critical patent/GB2256560B/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
    • 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 
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/11—Aspects regarding the frame of loudspeaker transducers
    • 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
GB9111737A 1991-05-31 1991-05-31 Loudspeaker Expired - Fee Related GB2256560B (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB9111737A GB2256560B (en) 1991-05-31 1991-05-31 Loudspeaker
EP92304950A EP0516471A1 (en) 1991-05-31 1992-05-29 Magnetic drive system for loudspeaker
NZ24296292A NZ242962A (en) 1991-05-31 1992-05-29 Moving coil loudspeaker; magnet mechanically decoupled from chassis
CA 2109711 CA2109711A1 (en) 1991-05-31 1992-05-29 Loudspeaker
PCT/GB1992/000970 WO1992022175A1 (en) 1991-05-31 1992-05-29 Magnetic drive system for loudspeaker
NO934298A NO934298L (en) 1991-05-31 1993-11-26 Magnetic drive system for loudspeakers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9111737A GB2256560B (en) 1991-05-31 1991-05-31 Loudspeaker

Publications (3)

Publication Number Publication Date
GB9111737D0 GB9111737D0 (en) 1991-07-24
GB2256560A GB2256560A (en) 1992-12-09
GB2256560B true GB2256560B (en) 1994-11-23

Family

ID=10695878

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9111737A Expired - Fee Related GB2256560B (en) 1991-05-31 1991-05-31 Loudspeaker

Country Status (6)

Country Link
EP (1) EP0516471A1 (en)
CA (1) CA2109711A1 (en)
GB (1) GB2256560B (en)
NO (1) NO934298L (en)
NZ (1) NZ242962A (en)
WO (1) WO1992022175A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0738454B1 (en) * 1994-11-04 2001-06-20 Koninklijke Philips Electronics N.V. Apparatus comprising a baffle and a loudspeaker, and loudspeaker for use in the apparatus
DE10149518A1 (en) * 2001-10-08 2003-04-10 Kolja Willimzik Electroacoustic device for conversion of electrical signals into acoustic signals comprises electrodynamic converter(s) whose drive is coupled to an element with a mass equal to at least 100 times the converter mass
WO2009048607A1 (en) 2007-10-10 2009-04-16 Corium International, Inc. Vaccine delivery via microneedle arrays
GB2497315A (en) * 2011-12-06 2013-06-12 B & W Group Ltd Decoupled loudspeaker drive unit operated by magnet reaction force or recoil
WO2021134429A1 (en) * 2019-12-31 2021-07-08 瑞声声学科技(深圳)有限公司 Loudspeaker box
FR3138258A1 (en) 2022-07-19 2024-01-26 Cédric Carlavan SPEAKER AND FURNITURE EQUIPPED WITH SUCH A SPEAKER

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1508348A (en) * 1975-06-10 1978-04-26 Mark Products Seismometer

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3667568A (en) * 1970-09-15 1972-06-06 Arthur Liebscher Pressure compensator for speaker cabinets
JPS606157B2 (en) * 1977-07-25 1985-02-15 ソニー株式会社 speaker
DE3414407C2 (en) * 1984-04-17 1986-02-20 Jürgen 6804 Ilvesheim Quaas Arrangement of sound transducers in a sound guide, in particular for loudspeaker boxes
JPH0326714Y2 (en) * 1986-02-24 1991-06-10
FR2625639B1 (en) * 1987-12-30 1991-11-15 Kobus Stanislas FIXING DEVICE FOR ELECTRODYNAMIC SPEAKER
JPH01162990U (en) * 1988-04-30 1989-11-14

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1508348A (en) * 1975-06-10 1978-04-26 Mark Products Seismometer

Also Published As

Publication number Publication date
CA2109711A1 (en) 1992-12-10
GB2256560A (en) 1992-12-09
WO1992022175A1 (en) 1992-12-10
NZ242962A (en) 1994-10-26
GB9111737D0 (en) 1991-07-24
NO934298D0 (en) 1993-11-26
NO934298L (en) 1993-11-26
EP0516471A1 (en) 1992-12-02

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Legal Events

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

Effective date: 19950531