WO2002013573A1 - Dispositif a haut-parleur - Google Patents

Dispositif a haut-parleur Download PDF

Info

Publication number
WO2002013573A1
WO2002013573A1 PCT/JP2000/005271 JP0005271W WO0213573A1 WO 2002013573 A1 WO2002013573 A1 WO 2002013573A1 JP 0005271 W JP0005271 W JP 0005271W WO 0213573 A1 WO0213573 A1 WO 0213573A1
Authority
WO
WIPO (PCT)
Prior art keywords
microphone
output signal
sound
amplifier
speaker unit
Prior art date
Application number
PCT/JP2000/005271
Other languages
English (en)
Japanese (ja)
Inventor
Hidekazu Tanaka
Fumiyasu Konno
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 to JP13819199A priority Critical patent/JP4224892B2/ja
Priority claimed from JP13819199A external-priority patent/JP4224892B2/ja
Application filed by Matsushita Electric Industrial Co., Ltd. filed Critical Matsushita Electric Industrial Co., Ltd.
Priority to DE60031558T priority patent/DE60031558T2/de
Priority to CNB008138494A priority patent/CN1186965C/zh
Priority to PCT/JP2000/005271 priority patent/WO2002013573A1/fr
Priority to CZ20021168A priority patent/CZ299745B6/cs
Priority to US10/089,884 priority patent/US7136495B1/en
Priority to EP00950015A priority patent/EP1221824B1/fr
Publication of WO2002013573A1 publication Critical patent/WO2002013573A1/fr
Priority to HK03101884.4A priority 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

Abstract

L'invention concerne un dispositif à haut-parleur comprenant un soustracteur (6), un amplificateur de puissance (13) dans lequel on injecte un signal d'entrée via le soustracteur (6), une unité de haut-parleur (1) pour la reproduction du signal de sortie à partir de l'amplificateur (13), un tube de guidage acoustique (2) couplé à l'avant de l'unité de haut-parleur (1) pour guider l'onde sonore depuis ladite unité (1), et un circuit de contre-réaction comprenant un microphone (4) de détection des signaux sonores qui émanent de cette unité (1), un amplificateur de microphone (5) pour l'amplification des signaux sonores détectés par le microphone (4) et l'injection de ces signaux directement dans le soustracteur (6), et enfin un filtre passe-haut (7) à travers lequel les signaux émanant de l'amplificateur de microphone (5) sont également injectés dans le soustracteur (6), ce qui permet de supprimer le creux de dépression de la caractéristique de fréquence de pression acoustique pour aplatir la caractéristique acoustique.
PCT/JP2000/005271 1999-05-19 2000-08-07 Dispositif a haut-parleur WO2002013573A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP13819199A JP4224892B2 (ja) 1999-05-19 1999-05-19 スピーカ装置
DE60031558T DE60031558T2 (de) 2000-08-07 2000-08-07 Lautsprechervorrichtung
CNB008138494A CN1186965C (zh) 2000-08-07 2000-08-07 扬声器装置
PCT/JP2000/005271 WO2002013573A1 (fr) 1999-05-19 2000-08-07 Dispositif a haut-parleur
CZ20021168A CZ299745B6 (cs) 2000-08-07 2000-08-07 Reproduktorové zarízení
US10/089,884 US7136495B1 (en) 1999-05-19 2000-08-07 Loudspeaker device
EP00950015A EP1221824B1 (fr) 2000-08-07 2000-08-07 Dispositif a haut-parleur
HK03101884.4A HK1049940B (zh) 2000-08-07 2003-03-14 揚聲器裝置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP13819199A JP4224892B2 (ja) 1999-05-19 1999-05-19 スピーカ装置
PCT/JP2000/005271 WO2002013573A1 (fr) 1999-05-19 2000-08-07 Dispositif a haut-parleur

Publications (1)

Publication Number Publication Date
WO2002013573A1 true WO2002013573A1 (fr) 2002-02-14

Family

ID=11736331

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2000/005271 WO2002013573A1 (fr) 1999-05-19 2000-08-07 Dispositif a haut-parleur

Country Status (6)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1351543A2 (fr) * 2002-03-07 2003-10-08 Pioneer Corporation Appareil de contrôle pour haut-parleur et système de haut-parleur

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Citations (2)

* 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
JPH07162990A (ja) * 1993-12-09 1995-06-23 Matsushita Electric Ind Co Ltd 音響再生装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
US7065221B1 (en) * 1998-12-01 2006-06-20 Matsushita Electric Industrial Co., Ltd. Speaker apparatus

Patent Citations (2)

* 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
JPH07162990A (ja) * 1993-12-09 1995-06-23 Matsushita Electric Ind Co Ltd 音響再生装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1221824A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1351543A2 (fr) * 2002-03-07 2003-10-08 Pioneer Corporation Appareil de contrôle pour haut-parleur et système de haut-parleur
EP1351543A3 (fr) * 2002-03-07 2007-04-04 Pioneer Corporation Appareil de contrôle pour haut-parleur et système de haut-parleur

Also Published As

Publication number Publication date
HK1049940B (zh) 2005-06-10
EP1221824A4 (fr) 2005-12-07
CZ299745B6 (cs) 2008-11-12
DE60031558D1 (de) 2006-12-07
CN1377566A (zh) 2002-10-30
EP1221824B1 (fr) 2006-10-25
HK1049940A1 (en) 2003-05-30
CZ20021168A3 (cs) 2003-02-12
DE60031558T2 (de) 2007-06-06
CN1186965C (zh) 2005-01-26
EP1221824A1 (fr) 2002-07-10

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