HK1049940B - 揚聲器裝置 - Google Patents

揚聲器裝置 Download PDF

Info

Publication number
HK1049940B
HK1049940B HK03101884.4A HK03101884A HK1049940B HK 1049940 B HK1049940 B HK 1049940B HK 03101884 A HK03101884 A HK 03101884A HK 1049940 B HK1049940 B HK 1049940B
Authority
HK
Hong Kong
Prior art keywords
microphone
pass filter
acoustic
speaker unit
speaker
Prior art date
Application number
HK03101884.4A
Other languages
English (en)
Chinese (zh)
Other versions
HK1049940A1 (zh
Inventor
田中秀和
今野文靖
Original Assignee
松下电器产业株式会社
松下電器產業株式會社
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 松下电器产业株式会社, 松下電器產業株式會社 filed Critical 松下电器产业株式会社
Publication of HK1049940A1 publication Critical patent/HK1049940A1/xx
Publication of HK1049940B publication Critical patent/HK1049940B/zh

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
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
HK03101884.4A 2000-08-07 2000-08-07 揚聲器裝置 HK1049940B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2000/005271 WO2002013573A1 (en) 1999-05-19 2000-08-07 Loudspeaker device

Publications (2)

Publication Number Publication Date
HK1049940A1 HK1049940A1 (zh) 2003-05-30
HK1049940B true HK1049940B (zh) 2005-06-10

Family

ID=11736331

Family Applications (1)

Application Number Title Priority Date Filing Date
HK03101884.4A HK1049940B (zh) 2000-08-07 2000-08-07 揚聲器裝置

Country Status (6)

Country Link
EP (1) EP1221824B1 (cs)
CN (1) CN1186965C (cs)
CZ (1) CZ299745B6 (cs)
DE (1) DE60031558T2 (cs)
HK (1) HK1049940B (cs)
WO (1) WO2002013573A1 (cs)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003264888A (ja) * 2002-03-07 2003-09-19 Pioneer Electronic Corp スピーカ制御装置及びスピーカシステム
CN100566140C (zh) * 2003-10-14 2009-12-02 音频专用集成电路公司 麦克风前置放大器
US8243939B2 (en) * 2008-12-30 2012-08-14 Gn Resound A/S Hearing instrument with improved initialisation of parameters of digital feedback suppression circuitry
CN102384821B (zh) * 2011-08-10 2015-07-29 歌尔声学股份有限公司 扬声器模组气密性测试方法、测试工装以及测试系统

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3798374A (en) * 1972-04-03 1974-03-19 Rene Oliveras Sound reproducing system utilizing motional feedback
JPS5990491A (ja) * 1982-11-15 1984-05-24 Matsushita Electric Ind Co Ltd オ−デイオ装置
DE4021787A1 (de) * 1990-07-09 1992-01-16 Telefunken Electronic Gmbh Elektro-akustisches system
JP3132270B2 (ja) * 1993-12-09 2001-02-05 松下電器産業株式会社 音響再生装置
JP3521626B2 (ja) * 1996-07-16 2004-04-19 松下電器産業株式会社 音響再生装置
JP3893730B2 (ja) * 1998-04-15 2007-03-14 松下電器産業株式会社 音響再生装置
CZ292683B6 (cs) * 1998-12-01 2003-11-12 Matsushita Electric Industrial Co., Ltd. Reproduktor

Also Published As

Publication number Publication date
DE60031558T2 (de) 2007-06-06
CN1377566A (zh) 2002-10-30
EP1221824A4 (en) 2005-12-07
CN1186965C (zh) 2005-01-26
EP1221824B1 (en) 2006-10-25
EP1221824A1 (en) 2002-07-10
DE60031558D1 (de) 2006-12-07
CZ20021168A3 (cs) 2003-02-12
CZ299745B6 (cs) 2008-11-12
HK1049940A1 (zh) 2003-05-30
WO2002013573A1 (en) 2002-02-14

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20080807