ES2166521T3 - Control de la distorsion de fase de un altavoz usando realimentacion de velocidad. - Google Patents

Control de la distorsion de fase de un altavoz usando realimentacion de velocidad.

Info

Publication number
ES2166521T3
ES2166521T3 ES97630063T ES97630063T ES2166521T3 ES 2166521 T3 ES2166521 T3 ES 2166521T3 ES 97630063 T ES97630063 T ES 97630063T ES 97630063 T ES97630063 T ES 97630063T ES 2166521 T3 ES2166521 T3 ES 2166521T3
Authority
ES
Spain
Prior art keywords
speaker
speed
coil
speed feedback
phase distortion
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 - Lifetime
Application number
ES97630063T
Other languages
English (en)
Inventor
Mark A Daniels
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.)
Carrier Corp
Original Assignee
Carrier Corp
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 Carrier Corp filed Critical Carrier Corp
Application granted granted Critical
Publication of ES2166521T3 publication Critical patent/ES2166521T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/10—Applications
    • G10K2210/112—Ducts
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30—Means
    • G10K2210/321—Physical
    • G10K2210/3212—Actuator details, e.g. composition or microstructure

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Exhaust Silencers (AREA)

Abstract

LA VELOCIDAD DE LA BOBINA INTEGRAL DE UN ALTAVOZ Y EL CONO DEL ALTAVOZ CANCELADOR EN UN SISTEMA ANC SE CORRESPONDE AL SONIDO PRODUCIDO POR EL ALTAVOZ CANCELADOR. DETERMINANDO LA VELOCIDAD DE LA BOBINA/CONO DEL ALTAVOZ Y COMPARANDO LA VELOCIDAD DETECTADA A LA SEÑAL DE EXCITACION DEL CONTROLADOR, EL TIEMPO Y LAS DISTANCIAS DE RESPUESTA PODRAN ACORTARSE. LA VELOCIDAD DE LA BOBINA/CONO DEL ALTAVOZ SE DETERMINA MIDIENDO LA CAIDA DE TENSION A TRAVES DE UNA RESISTENCIA (14) COLOCADA EN SERIE CON LA BOBINA (12 - 2) DEL ALTAVOZ QUE ESTA DIFERENCIADA POR UN CIRCUITO (40; 140) PARA OBTENER UNA SEÑAL DE REPRESENTACION DE LA VELOCIDAD DE LA BOBINA DEL ALTAVOZ.
ES97630063T 1996-09-25 1997-09-19 Control de la distorsion de fase de un altavoz usando realimentacion de velocidad. Expired - Lifetime ES2166521T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/723,160 US5771300A (en) 1996-09-25 1996-09-25 Loudspeaker phase distortion control using velocity feedback

Publications (1)

Publication Number Publication Date
ES2166521T3 true ES2166521T3 (es) 2002-04-16

Family

ID=24905110

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97630063T Expired - Lifetime ES2166521T3 (es) 1996-09-25 1997-09-19 Control de la distorsion de fase de un altavoz usando realimentacion de velocidad.

Country Status (12)

Country Link
US (1) US5771300A (es)
EP (1) EP0838973B1 (es)
JP (1) JPH10164689A (es)
CN (1) CN1132498C (es)
AU (1) AU716029B2 (es)
BR (1) BR9704861A (es)
ES (1) ES2166521T3 (es)
HK (1) HK1010304A1 (es)
ID (1) ID18318A (es)
MY (1) MY117380A (es)
SG (1) SG60115A1 (es)
TW (1) TW331694B (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2385393A1 (es) * 2010-11-02 2012-07-24 Universitat Politècnica De Catalunya Equipo de diagnóstico de altavoces y procedimiento de utilización de éste mediante el uso de transformada wavelet.

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6739425B1 (en) * 2000-07-18 2004-05-25 The United States Of America As Represented By The Secretary Of The Air Force Evacuated enclosure mounted acoustic actuator and passive attenuator
CA2408045A1 (en) * 2001-10-16 2003-04-16 Audio Products International Corp. Loudspeaker with large displacement motional feedback
JP2006050245A (ja) 2004-08-04 2006-02-16 Sony Corp スピーカ駆動装置及びスピーカ駆動方法
JP2008518498A (ja) * 2004-10-21 2008-05-29 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ ラウドスピーカ・フィードバック
US9496850B2 (en) 2006-08-04 2016-11-15 Creative Technology Ltd Alias-free subband processing
FR3018025B1 (fr) * 2014-02-26 2016-03-18 Devialet Dispositif de commande d'un haut-parleur
US9838788B1 (en) 2016-12-05 2017-12-05 Tymphany Hk Limited Assembly for preventing phase error
CN110402585B (zh) * 2017-03-10 2021-12-24 三星电子株式会社 室内低频声功率优化方法和装置
GB201712391D0 (en) 2017-08-01 2017-09-13 Turner Michael James Controller for an electromechanical transducer
CN112152518A (zh) * 2019-06-28 2020-12-29 胡永慧 用于降低电磁振动换能机电机构自由振动的驱动电路
US10867594B1 (en) * 2019-10-02 2020-12-15 xMEMS Labs, Inc. Audio apparatus and audio method thereof
US11664007B1 (en) * 2022-04-27 2023-05-30 Harman International Industries, Incorporated Fast adapting high frequency remote microphone noise cancellation

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2235664A1 (de) * 1972-07-20 1974-01-31 Max Planck Gesellschaft Schaltungsanordnung zur kompensation des spannungsabfalls an einem lautsprecher
DE3237262C1 (de) * 1982-10-08 1983-10-27 Michael 4000 Düsseldorf Bolz Lautsprecher mit Membrangegenkopplung
DE3426231C2 (de) * 1984-07-17 1986-11-06 T+A elektroakustik GmbH, 4900 Herford Vorrichtung zur Gegenkopplung eines Lautsprechers
US4677677A (en) * 1985-09-19 1987-06-30 Nelson Industries Inc. Active sound attenuation system with on-line adaptive feedback cancellation
US4677676A (en) * 1986-02-11 1987-06-30 Nelson Industries, Inc. Active attenuation system with on-line modeling of speaker, error path and feedback pack
US5119427A (en) * 1988-03-14 1992-06-02 Hersh Alan S Extended frequency range Helmholtz resonators
DE3836745A1 (de) * 1988-10-28 1990-05-03 Standard Elektrik Lorenz Ag Verfahren und vorrichtung zur linearisierung des frequenzganges eines lautsprechersystems
DE69220342T2 (de) * 1991-12-20 1997-11-20 Matsushita Electric Ind Co Ltd Lautsprecherapparat zur Basswiedergabe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2385393A1 (es) * 2010-11-02 2012-07-24 Universitat Politècnica De Catalunya Equipo de diagnóstico de altavoces y procedimiento de utilización de éste mediante el uso de transformada wavelet.

Also Published As

Publication number Publication date
JPH10164689A (ja) 1998-06-19
EP0838973B1 (en) 2001-10-31
CN1132498C (zh) 2003-12-24
MY117380A (en) 2004-06-30
MX9707301A (es) 1998-03-31
CN1179690A (zh) 1998-04-22
EP0838973A1 (en) 1998-04-29
AU716029B2 (en) 2000-02-17
AU3919597A (en) 1998-04-02
US5771300A (en) 1998-06-23
BR9704861A (pt) 1999-01-26
ID18318A (id) 1998-03-26
HK1010304A1 (en) 1999-06-17
TW331694B (en) 1998-05-11
SG60115A1 (en) 1999-02-22

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