JP2021100245A5 - - Google Patents

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Publication number
JP2021100245A5
JP2021100245A5 JP2020213651A JP2020213651A JP2021100245A5 JP 2021100245 A5 JP2021100245 A5 JP 2021100245A5 JP 2020213651 A JP2020213651 A JP 2020213651A JP 2020213651 A JP2020213651 A JP 2020213651A JP 2021100245 A5 JP2021100245 A5 JP 2021100245A5
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JP
Japan
Prior art keywords
loudspeaker
acoustic
open duct
duct
diaphragm
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.)
Granted
Application number
JP2020213651A
Other languages
English (en)
Japanese (ja)
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JP2021100245A (ja
JP7417512B2 (ja
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Publication date
Priority claimed from GB1919144.4A external-priority patent/GB2590656A/en
Application filed filed Critical
Publication of JP2021100245A publication Critical patent/JP2021100245A/ja
Publication of JP2021100245A5 publication Critical patent/JP2021100245A5/ja
Application granted granted Critical
Publication of JP7417512B2 publication Critical patent/JP7417512B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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JP2020213651A 2019-12-23 2020-12-23 ラウドスピーカ Active JP7417512B2 (ja)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB1919144.4 2019-12-23
GB1919144.4A GB2590656A (en) 2019-12-23 2019-12-23 Loudspeakers
GB2017429.8A GB2590785B (en) 2019-12-23 2020-11-04 Loudspeakers
GB2017429.8 2020-11-04

Publications (3)

Publication Number Publication Date
JP2021100245A JP2021100245A (ja) 2021-07-01
JP2021100245A5 true JP2021100245A5 (https=) 2023-10-26
JP7417512B2 JP7417512B2 (ja) 2024-01-18

Family

ID=69322873

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2020213651A Active JP7417512B2 (ja) 2019-12-23 2020-12-23 ラウドスピーカ

Country Status (5)

Country Link
US (1) US11647326B2 (https=)
EP (1) EP3843420B1 (https=)
JP (1) JP7417512B2 (https=)
CN (1) CN113099368B (https=)
GB (2) GB2590656A (https=)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12587780B1 (en) 2021-08-19 2026-03-24 Dan Clark Audio Inc. Rear side acoustic metamaterial compensation system
KR20230064909A (ko) * 2021-11-04 2023-05-11 엘지디스플레이 주식회사 장치
CN118124482B (zh) * 2024-05-08 2024-09-03 苏州上声电子股份有限公司 一种车载发声装置、车载行人警示器及车载警示系统

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2293181A (en) * 1940-07-17 1942-08-18 Int Standard Electric Corp Sound absorbing apparatus
GB547922A (en) * 1940-07-17 1942-09-17 Standard Telephones Cables Ltd Sound absorbing apparatus
GB864683A (en) * 1958-04-08 1961-04-06 Decca Record Co Ltd Improvements in or relating to loudspeakers
US5548657A (en) 1988-05-09 1996-08-20 Kef Audio (Uk) Limited Compound loudspeaker drive unit
GB2290672A (en) * 1995-09-08 1996-01-03 B & W Loudspeakers Loudspeaker systems
GB2324928B (en) * 1997-05-02 2001-09-12 B & W Loudspeakers Loudspeaker systems
US6771787B1 (en) * 1998-09-03 2004-08-03 Bose Corporation Waveguide electroacoustical transducing
US7325649B1 (en) * 1999-09-23 2008-02-05 Farnsworth & Budge, Llc Loudspeaker with progressively damped acoustical chamber
JP2003032774A (ja) * 2001-07-19 2003-01-31 Matsushita Electric Ind Co Ltd スピーカシステム
JP2004072140A (ja) * 2002-08-01 2004-03-04 Hiroshi China 全指向性バックロードホーン型スピーカー
GB2423908B (en) 2005-03-02 2008-04-02 Kh Technology Corp Loudspeaker
DK2040483T3 (da) * 2007-09-21 2013-06-03 Laurence George Dickie Port-højtalerkabinet med konisk bølgelederabsorber
WO2012106327A1 (en) * 2011-01-31 2012-08-09 Wayne State University Acoustic metamaterials
JP2016082313A (ja) * 2014-10-14 2016-05-16 ヤマハ株式会社 コンプレッションドライバおよびホーンスピーカ
US9906198B2 (en) * 2015-03-20 2018-02-27 Nokia Technologies Oy Narrowing audio filter transition band
FR3034564B1 (fr) * 2015-04-02 2017-04-28 Focal Jmlab Dispositif d'adaptation d'impedance acoustique et haut-parleur equipe d'un tel dispositif
CN105142074B (zh) * 2015-08-19 2019-03-12 歌尔股份有限公司 扬声器模组
WO2018047153A1 (en) * 2016-09-12 2018-03-15 Acoustic Metamaterials Group Limited Acoustic metamaterial sound absorber
US10032445B1 (en) * 2016-12-13 2018-07-24 Northrop Grumman Systems Corporation Honeycomb unit cell acoustic metamaterial with in situ buttresses for tuned acoustic frequency attenuation
GB2567673B (en) * 2017-10-20 2022-01-26 Gp Acoustics International Ltd Loudspeaker
US10453438B1 (en) * 2018-05-30 2019-10-22 The Boeing Company Methods and systems for broad-band active noise reduction
GB201905258D0 (en) * 2019-04-12 2019-05-29 Univ Of Sussex acoustic metamaterial systems
EP3984019B1 (en) * 2019-06-13 2024-08-21 Ask Industries Societa' per Azioni High-performance sound generating system for vehicles

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