GB2082021B - Electrodynamic loudspeaker - Google Patents

Electrodynamic loudspeaker

Info

Publication number
GB2082021B
GB2082021B GB8120922A GB8120922A GB2082021B GB 2082021 B GB2082021 B GB 2082021B GB 8120922 A GB8120922 A GB 8120922A GB 8120922 A GB8120922 A GB 8120922A GB 2082021 B GB2082021 B GB 2082021B
Authority
GB
United Kingdom
Prior art keywords
electrodynamic loudspeaker
electrodynamic
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
Application number
GB8120922A
Other languages
English (en)
Other versions
GB2082021A (en
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
Priority claimed from JP9364680A external-priority patent/JPS5718198A/ja
Priority claimed from JP14169180A external-priority patent/JPS5953759B2/ja
Priority claimed from JP2411481A external-priority patent/JPS57138299A/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of GB2082021A publication Critical patent/GB2082021A/en
Application granted granted Critical
Publication of GB2082021B publication Critical patent/GB2082021B/en
Expired 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 
    • H04R1/225—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only  for telephonic receivers
    • 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)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
GB8120922A 1980-07-08 1981-07-07 Electrodynamic loudspeaker Expired GB2082021B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP9364680A JPS5718198A (en) 1980-07-08 1980-07-08 Dynamic loudspeaker
JP14169180A JPS5953759B2 (ja) 1980-10-08 1980-10-08 動電型スピ−カ
JP2411481A JPS57138299A (en) 1981-02-19 1981-02-19 Electrodynamic speaker

Publications (2)

Publication Number Publication Date
GB2082021A GB2082021A (en) 1982-02-24
GB2082021B true GB2082021B (en) 1984-05-23

Family

ID=27284519

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8120922A Expired GB2082021B (en) 1980-07-08 1981-07-07 Electrodynamic loudspeaker

Country Status (3)

Country Link
US (1) US4426556A (en, 2012)
DE (1) DE3126993A1 (en, 2012)
GB (1) GB2082021B (en, 2012)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4899390A (en) * 1986-09-19 1990-02-06 Matsushita Electric Industrial Co., Ltd. Thin speaker having an enclosure within an open portion and a closed portion
CA1284837C (en) * 1987-06-18 1991-06-11 Highwood Audio Inc. Audio transducer
US5872855A (en) * 1995-03-22 1999-02-16 Chain Reactions, Inc. Multiple voice coil, multiple function loudspeaker
US6215881B1 (en) * 1995-09-02 2001-04-10 New Transducers Limited Ceiling tile loudspeaker
US6519346B1 (en) * 1998-01-16 2003-02-11 Sony Corporation Speaker apparatus and electronic apparatus having a speaker apparatus enclosed therein
DE19821855A1 (de) 1998-05-15 1999-11-18 Nokia Deutschland Gmbh Plattenlautsprecher
DE19825866A1 (de) 1998-06-10 1999-12-16 Nokia Deutschland Gmbh Plattenlautsprecher
ID27400A (id) 1998-06-22 2001-04-05 Slab Technology Ltd Pengeras suara
JP3512087B2 (ja) 1999-06-15 2004-03-29 日本電気株式会社 パネルスピーカ
US6574347B1 (en) * 2000-11-17 2003-06-03 Logitech Europe S.A. Flat-panel loudspeaker with compressed dampeners
FI20011303L (fi) * 2001-06-19 2002-12-20 Nokia Corp Kaiutin
US7010143B2 (en) * 2002-08-22 2006-03-07 Tai-Yan Kam Rectangular panel-form loudspeaker and its radiating panel
GB0601076D0 (en) * 2006-01-19 2006-03-01 New Transducers Ltd Acoustic device and method of making acoustic device
WO2010118313A1 (en) * 2009-04-10 2010-10-14 Immerz Inc. Systems and methods for acousto-haptic speakers
GB2489700B (en) * 2011-04-04 2013-09-18 Canon Kk Method and device for controlling the vibration modes of a vibrating support
GB2522814B (en) * 2012-11-30 2020-07-29 Tymphany Hong Kong Ltd A loudspeaker with two motors and one suspension
CN111698615A (zh) * 2019-03-14 2020-09-22 歌尔股份有限公司 双面微型发声装置和电子产品

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2007746A (en) 1925-07-20 1935-07-09 Rca Corp Acoustic device
US2956538A (en) 1957-12-10 1960-10-18 Gen Ultrasonics Company Diaphragm vibration control
BE626876A (en, 2012) 1962-01-15
US3496307A (en) * 1967-12-30 1970-02-17 Nippon Musical Instruments Mfg Loudspeaker
DE6926662U (de) * 1969-07-04 1969-12-04 Oskar Knecht Lautsprechersystem
JPS5525285A (en) * 1978-08-14 1980-02-22 Sony Corp Speaker
US4225757A (en) 1978-12-18 1980-09-30 Babbco, Ltd. Broad band dynamic loudspeaker

Also Published As

Publication number Publication date
US4426556A (en) 1984-01-17
DE3126993C2 (en, 2012) 1989-11-16
DE3126993A1 (de) 1982-04-15
GB2082021A (en) 1982-02-24

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 19960628

PCNP Patent ceased through non-payment of renewal fee

Effective date: 19980707