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GB2325373B - Loudspeaker unit - Google Patents

Loudspeaker unit

Info

Publication number
GB2325373B
GB2325373B GB9818737A GB9818737A GB2325373B GB 2325373 B GB2325373 B GB 2325373B GB 9818737 A GB9818737 A GB 9818737A GB 9818737 A GB9818737 A GB 9818737A GB 2325373 B GB2325373 B GB 2325373B
Authority
GB
United Kingdom
Prior art keywords
loudspeaker unit
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.)
Expired - Fee Related
Application number
GB9818737A
Other versions
GB9818737D0 (en
GB2325373A (en
Inventor
Syoji Tanaka
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of GB9818737D0 publication Critical patent/GB9818737D0/en
Publication of GB2325373A publication Critical patent/GB2325373A/en
Application granted granted Critical
Publication of GB2325373B publication Critical patent/GB2325373B/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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
GB9818737A 1996-02-29 1997-02-07 Loudspeaker unit Expired - Fee Related GB2325373B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP04256496A JP3233004B2 (en) 1996-02-29 1996-02-29 Speaker unit
PCT/JP1997/000334 WO1997032451A1 (en) 1996-02-29 1997-02-07 Loudspeaker unit

Publications (3)

Publication Number Publication Date
GB9818737D0 GB9818737D0 (en) 1998-10-21
GB2325373A GB2325373A (en) 1998-11-18
GB2325373B true GB2325373B (en) 2000-08-16

Family

ID=12639556

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9818737A Expired - Fee Related GB2325373B (en) 1996-02-29 1997-02-07 Loudspeaker unit

Country Status (4)

Country Link
JP (1) JP3233004B2 (en)
CN (1) CN1123277C (en)
GB (1) GB2325373B (en)
WO (1) WO1997032451A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003015462A2 (en) 2001-08-10 2003-02-20 Koninklijke Philips Electronics N.V. Loudspeaker with a three-dimensional diaphragm
EP1737269B1 (en) 2005-06-21 2012-10-10 Harman International Industries Ltd. Shallow loudspeaker
WO2007086315A1 (en) * 2006-01-24 2007-08-02 Matsushita Electric Industrial Co., Ltd. Speaker and electronic apparatus and device using the same
JP4912922B2 (en) * 2007-02-28 2012-04-11 ミネベア株式会社 Speaker
US8682022B2 (en) 2008-10-24 2014-03-25 Jason Myles Cobb Loudspeaker
CN107347174A (en) * 2017-08-30 2017-11-14 钟礼通 A kind of loudspeaker and audio amplifier using Volume Control Technology

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5653897U (en) * 1979-10-01 1981-05-12
JPS56137590U (en) * 1980-03-19 1981-10-17
JPS5718200A (en) * 1980-07-09 1982-01-29 Hitachi Ltd Plane type loudspeaker
JPS59180594U (en) * 1983-05-20 1984-12-03 三菱電機株式会社 speaker
JPH04192800A (en) * 1990-11-26 1992-07-10 Sharp Corp Electromechanical converter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5653897U (en) * 1979-10-01 1981-05-12
JPS56137590U (en) * 1980-03-19 1981-10-17
JPS5718200A (en) * 1980-07-09 1982-01-29 Hitachi Ltd Plane type loudspeaker
JPS59180594U (en) * 1983-05-20 1984-12-03 三菱電機株式会社 speaker
JPH04192800A (en) * 1990-11-26 1992-07-10 Sharp Corp Electromechanical converter

Also Published As

Publication number Publication date
CN1211380A (en) 1999-03-17
JPH09238396A (en) 1997-09-09
GB9818737D0 (en) 1998-10-21
WO1997032451A1 (en) 1997-09-04
CN1123277C (en) 2003-10-01
GB2325373A (en) 1998-11-18
JP3233004B2 (en) 2001-11-26

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Legal Events

Date Code Title Description
789A Request for publication of translation (sect. 89(a)/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20070207