BR9704861A - Circuito supressor de ruído ativo de duto e processo para corrigir o sinal supressor de ruído no mesmo - Google Patents

Circuito supressor de ruído ativo de duto e processo para corrigir o sinal supressor de ruído no mesmo

Info

Publication number: BR9704861A
Authority: BR; Brazil
Prior art keywords: suppressor; correct; signal; circuit; active duct
Prior art date: 1996-09-25

Application number

BR9704861A

Other languages

English (en)

Inventor

Mark A Daniels

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.)

1996-09-25

Filing date

1997-09-24

Publication date

1999-01-26

1997-09-24 Application filed by Carrier Corp filed Critical Carrier Corp

1999-01-26 Publication of BR9704861A publication Critical patent/BR9704861A/pt

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)

BR9704861A 1996-09-25 1997-09-24 Circuito supressor de ruído ativo de duto e processo para corrigir o sinal supressor de ruído no mesmo BR9704861A (pt)

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
BR9704861A true BR9704861A (pt)	1999-01-26

Family

ID=24905110

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BR9704861A BR9704861A (pt)	1996-09-25	1997-09-24	Circuito supressor de ruído ativo de duto e processo para corrigir o sinal supressor de ruído no mesmo

Country Status (11)

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

Families Citing this family (15)

* 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
KR20070084422A (ko) *	2004-10-21	2007-08-24	코닌클리케 필립스 일렉트로닉스 엔.브이.	라우드스피커 피드백
US9496850B2 (en) *	2006-08-04	2016-11-15	Creative Technology Ltd	Alias-free subband processing
ES2385393B1 (es) *	2010-11-02	2013-07-12	Universitat Politècnica De Catalunya	Equipo de diagnóstico de altavoces y procedimiento de utilización de éste mediante el uso de transformada wavelet.
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
US11425476B2 (en) *	2019-12-30	2022-08-23	Harman Becker Automotive Systems Gmbh	System and method for adaptive control of online extraction of loudspeaker parameters
US11664007B1 (en) *	2022-04-27	2023-05-30	Harman International Industries, Incorporated	Fast adapting high frequency remote microphone noise cancellation
US12449441B2 (en) *	2023-05-08	2025-10-21	Hans K Liu	Velocity detection for motion conductor in magnetic field

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
EP0548836B1 (en) *	1991-12-20	1997-06-11	Matsushita Electric Industrial Co., Ltd.	A bass reproduction speaker apparatus

1996
- 1996-09-25 US US08/723,160 patent/US5771300A/en not_active Expired - Lifetime
1997
- 1997-08-08 TW TW086111385A patent/TW331694B/zh not_active IP Right Cessation
- 1997-09-12 SG SG1997003378A patent/SG60115A1/en unknown
- 1997-09-19 ID IDP973250A patent/ID18318A/id unknown
- 1997-09-19 EP EP97630063A patent/EP0838973B1/en not_active Expired - Lifetime
- 1997-09-19 ES ES97630063T patent/ES2166521T3/es not_active Expired - Lifetime
- 1997-09-23 AU AU39195/97A patent/AU716029B2/en not_active Ceased
- 1997-09-24 BR BR9704861A patent/BR9704861A/pt not_active Application Discontinuation
- 1997-09-25 CN CN97119255A patent/CN1132498C/zh not_active Expired - Fee Related
- 1997-09-25 MY MYPI97004467A patent/MY117380A/en unknown
- 1997-09-25 JP JP9259485A patent/JPH10164689A/ja active Pending

Also Published As

Publication number	Publication date
EP0838973B1 (en)	2001-10-31
SG60115A1 (en)	1999-02-22
CN1132498C (zh)	2003-12-24
JPH10164689A (ja)	1998-06-19
HK1010304A1 (en)	1999-06-17
AU3919597A (en)	1998-04-02
TW331694B (en)	1998-05-11
CN1179690A (zh)	1998-04-22
EP0838973A1 (en)	1998-04-29
MX9707301A (es)	1998-03-31
ES2166521T3 (es)	2002-04-16
MY117380A (en)	2004-06-30
ID18318A (id)	1998-03-26
AU716029B2 (en)	2000-02-17
US5771300A (en)	1998-06-23

Publication	Publication Date	Title
BR9710475A (pt)	1999-08-17	Processo e circuito para cancelar um sinal de eco
ID22524A (id)	1999-10-28	Piranti pengolahan udara
FI964127L (fi)	1996-10-14	Kuidun käsittely
DE69702245D1 (de)	2000-07-13	Listengesteuerte videoverarbeitungen
DE69735042D1 (de)	2006-03-30	Verarbeitungsvorrichtung
FI963484L (fi)	1996-09-05	Kuidun käsittely
BR9704861A (pt)	1999-01-26	Circuito supressor de ruído ativo de duto e processo para corrigir o sinal supressor de ruído no mesmo
DE69721381T2 (de)	2004-01-15	Einsetzen und Entfernen einer Erweiterungskarte
FI972494A0 (fi)	1997-06-12	Järjestelmiä ja menetelmiä biologista hajottamista varten
DE69709968D1 (de)	2002-03-14	Fernsehsignal-Bearbeitung
DE69736372D1 (de)	2006-09-07	Bildsignalverarbeitung
DE69736636D1 (de)	2006-10-19	Verarbeitungsvorrichtung
DE69719151D1 (de)	2003-03-27	Verarbeitungssystem
FI951101L (fi)	1995-09-12	5-vinyyli- ja 5-etinyylikinoloni- ja -naftyridonikarboksyylihapot
IT1308608B1 (it)	2002-01-08	Dispositivo di asciugatura e/oppure fissaggio
FI960994L (fi)	1997-09-05	Erotuslaite ja siinä olevia komponentteja
DE69507899D1 (de)	1999-03-25	Signalverarbeitung
BR9509912A (pt)	1997-10-14	Condensador e método de alimentação
KR970062503U (ko)	1997-12-11	세탁기용 휠터
DE69735252D1 (de)	2006-04-20	Demodulator
DE69516473D1 (de)	2000-05-31	Inspektionssystem
DE69718801D1 (de)	2003-03-06	Filter- und kühlvorrichtung
BR9502076A (pt)	1997-08-05	Circuito integrado de atuação e exploração dupla
FI960498A0 (fi)	1996-02-02	Dataoeverfoeringsfoerfarande och saendarmottagaranordning
ID19264A (id)	1998-06-28	Pro-katalisator dan pengolahan untuk membuatnya

Legal Events

Date	Code	Title	Description
2007-10-02	B08F	Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]	Free format text: REFERENTE A 9A E 10A ANUIDADES.
2008-02-26	B08G	Application fees: restoration [chapter 8.7 patent gazette]
2008-05-13	B06A	Patent application procedure suspended [chapter 6.1 patent gazette]
2009-02-25	B11B	Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements