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WO2005027338A3 - Active noise control system and method - Google Patents

Active noise control system and method Download PDF

Info

Publication number
WO2005027338A3
WO2005027338A3 PCT/IL2004/000863 IL2004000863W WO2005027338A3 WO 2005027338 A3 WO2005027338 A3 WO 2005027338A3 IL 2004000863 W IL2004000863 W IL 2004000863W WO 2005027338 A3 WO2005027338 A3 WO 2005027338A3
Authority
WO
WIPO (PCT)
Prior art keywords
noise
produce
control system
active noise
noise control
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.)
Ceased
Application number
PCT/IL2004/000863
Other languages
French (fr)
Other versions
WO2005027338A2 (en
Inventor
Alon Slapail
Yehuda Meiman
Gedalin Konstantin
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.)
Silentium Ltd
Original Assignee
Silentium 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
Application filed by Silentium Ltd filed Critical Silentium Ltd
Priority to US10/573,060 priority Critical patent/US7853024B2/en
Priority to KR1020067007389A priority patent/KR101121764B1/en
Publication of WO2005027338A2 publication Critical patent/WO2005027338A2/en
Publication of WO2005027338A3 publication Critical patent/WO2005027338A3/en
Anticipated expiration legal-status Critical
Priority to US12/941,145 priority patent/US8630424B2/en
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • G10K11/17853—Methods, e.g. algorithms; Devices of the filter
    • G10K11/17854—Methods, e.g. algorithms; Devices of the filter the filter being an adaptive filter
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B29/00—Generation of noise currents and voltages
    • 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
    • G10K11/1781—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 characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions
    • G10K11/17821—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 characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions characterised by the analysis of the input signals only
    • G10K11/17823—Reference signals, e.g. ambient acoustic environment
    • 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
    • G10K11/17857—Geometric disposition, e.g. placement of microphones
    • 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
    • G10K11/1787—General system configurations
    • G10K11/17879—General system configurations using both a reference signal and an error signal
    • G10K11/17881—General system configurations using both a reference signal and an error signal the reference signal being an acoustic signal, e.g. recorded with a microphone
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R3/00—Electrically-conductive connections not otherwise provided for

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Noise Elimination (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

An Active Noise Control (ANC) for controlling a noise produced by a noise source may include an acoustic sensor (212) to sense a noise pattern and to produce a noise signal corresponding to the sensed noise pattern, an estimator (202) to produce a predicted noise signal by applying an estimation function to the noise signal, and an acoustic transducer (216) to produce a noise destructive pattern based on the predicted noise signal.
PCT/IL2004/000863 1997-08-14 2004-09-19 Active noise control system and method Ceased WO2005027338A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US10/573,060 US7853024B2 (en) 1997-08-14 2004-09-19 Active noise control system and method
KR1020067007389A KR101121764B1 (en) 2003-09-17 2004-09-19 Active noise control system and method
US12/941,145 US8630424B2 (en) 1997-08-14 2010-11-08 Active noise control system and method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US50347103P 2003-09-17 2003-09-17
US60/503,471 2003-09-17

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US09/120,973 Continuation-In-Part US7317801B1 (en) 1997-08-14 1998-07-22 Active acoustic noise reduction system

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US10573060 A-371-Of-International 2004-09-19
US12/941,145 Continuation US8630424B2 (en) 1997-08-14 2010-11-08 Active noise control system and method

Publications (2)

Publication Number Publication Date
WO2005027338A2 WO2005027338A2 (en) 2005-03-24
WO2005027338A3 true WO2005027338A3 (en) 2005-05-06

Family

ID=34312441

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2004/000863 Ceased WO2005027338A2 (en) 1997-08-14 2004-09-19 Active noise control system and method

Country Status (2)

Country Link
KR (1) KR101121764B1 (en)
WO (1) WO2005027338A2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7783055B2 (en) 1998-07-22 2010-08-24 Silentium Ltd. Soundproof climate controlled rack
DE102005060064A1 (en) * 2005-12-15 2007-06-21 Müller-BBM GmbH Method and system for active noise control, use in a motor vehicle
EP1993495B1 (en) 2006-03-02 2020-07-15 Silentium Ltd. Quiet active fan for servers chassis
US7869607B2 (en) 2006-03-02 2011-01-11 Silentium Ltd. Quiet active fan for servers chassis
WO2008090544A2 (en) 2007-01-22 2008-07-31 Silentium Ltd. Quiet fan incorporating active noise control (anc)
US9928824B2 (en) 2011-05-11 2018-03-27 Silentium Ltd. Apparatus, system and method of controlling noise within a noise-controlled volume
WO2012153294A2 (en) 2011-05-11 2012-11-15 Silentium Ltd. Device, system and method of noise control
CN106094654B (en) * 2016-08-16 2018-10-26 武汉大学 A kind of power transformer active noise control system based on disturbance observation method
CN112053676B (en) * 2020-08-07 2023-11-21 南京时保联信息科技有限公司 A nonlinear adaptive active noise reduction system and its noise reduction method
CN113284480B (en) * 2020-12-11 2024-03-26 西安艾科特声学科技有限公司 Noise reduction effect estimation method for active noise control system
JP7554680B2 (en) * 2021-01-27 2024-09-20 株式会社マキタ Electric working machine and method for controlling noise generated by the electric working machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5117401A (en) * 1990-08-16 1992-05-26 Hughes Aircraft Company Active adaptive noise canceller without training mode
US6084971A (en) * 1997-06-10 2000-07-04 Siemens Electric Limited Active noise attenuation system
US20030012980A1 (en) * 1999-12-13 2003-01-16 Makoto Mouri Quinoline derivatives and organic electroluminescent devices

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6005952A (en) * 1995-04-05 1999-12-21 Klippel; Wolfgang Active attenuation of nonlinear sound
US5978489A (en) * 1997-05-05 1999-11-02 Oregon Graduate Institute Of Science And Technology Multi-actuator system for active sound and vibration cancellation
GB0004243D0 (en) * 2000-02-24 2000-04-12 Wright Selwyn E Improvements in and relating to active noise reduction

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5117401A (en) * 1990-08-16 1992-05-26 Hughes Aircraft Company Active adaptive noise canceller without training mode
US6084971A (en) * 1997-06-10 2000-07-04 Siemens Electric Limited Active noise attenuation system
US20030012980A1 (en) * 1999-12-13 2003-01-16 Makoto Mouri Quinoline derivatives and organic electroluminescent devices

Also Published As

Publication number Publication date
WO2005027338A2 (en) 2005-03-24
KR20060123732A (en) 2006-12-04
KR101121764B1 (en) 2012-03-23

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