ATE179273T1 - ACTIVE NOISE REDUCTION IN A HOUSING USING A VARIETY OF TRANSDUCERS - Google Patents

ACTIVE NOISE REDUCTION IN A HOUSING USING A VARIETY OF TRANSDUCERS

Info

Publication number
ATE179273T1
ATE179273T1 AT92905531T AT92905531T ATE179273T1 AT E179273 T1 ATE179273 T1 AT E179273T1 AT 92905531 T AT92905531 T AT 92905531T AT 92905531 T AT92905531 T AT 92905531T AT E179273 T1 ATE179273 T1 AT E179273T1
Authority
AT
Austria
Prior art keywords
transducers
variety
housing
active noise
noise reduction
Prior art date
Application number
AT92905531T
Other languages
German (de)
Inventor
Loughlin Michael P Mc
Khoscrow Eghtesadi
Dexter Smith
Eldon W Ziegler Jr
Original Assignee
Noise Cancellation Tech
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 Noise Cancellation Tech filed Critical Noise Cancellation Tech
Application granted granted Critical
Publication of ATE179273T1 publication Critical patent/ATE179273T1/en

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
    • G10K11/1783—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 handling or detecting of non-standard events or conditions, e.g. changing operating modes under specific operating conditions
    • G10K11/17833—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 handling or detecting of non-standard events or conditions, e.g. changing operating modes under specific operating conditions by using a self-diagnostic function or a malfunction prevention function, e.g. detecting abnormal output levels
    • 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
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G10K11/17861—Methods, e.g. algorithms; Devices using additional means for damping sound, e.g. using sound absorbing panels
    • 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
    • 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
    • G10K2210/105—Appliances, e.g. washing machines or dishwashers
    • G10K2210/1054—Refrigerators
    • 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
    • G10K2210/106—Boxes, i.e. active box covering a noise source; Enclosures
    • 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
    • G10K2210/3216—Cancellation means disposed in the vicinity of the source

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Noise Elimination (AREA)
  • Exhaust Silencers (AREA)
  • Amplifiers (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

An active noise (''NOISE SOURCE'') control system for an enclosure having at least two transducers (''SECOND SOURCES'') and multiple channels in which there is interaction between the channels provides for attenuation of the desired regions within the enclosure.
AT92905531T 1991-12-02 1991-12-02 ACTIVE NOISE REDUCTION IN A HOUSING USING A VARIETY OF TRANSDUCERS ATE179273T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1991/008772 WO1993011529A1 (en) 1991-12-02 1991-12-02 Active noise control of an enclosure with multiple transducers

Publications (1)

Publication Number Publication Date
ATE179273T1 true ATE179273T1 (en) 1999-05-15

Family

ID=22225986

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92905531T ATE179273T1 (en) 1991-12-02 1991-12-02 ACTIVE NOISE REDUCTION IN A HOUSING USING A VARIETY OF TRANSDUCERS

Country Status (7)

Country Link
EP (1) EP0615648B1 (en)
JP (1) JPH07504991A (en)
AT (1) ATE179273T1 (en)
CA (1) CA2124183C (en)
DE (1) DE69131170T2 (en)
DK (1) DK0615648T3 (en)
WO (1) WO1993011529A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0645004A4 (en) * 1992-06-10 1996-05-08 Noise Cancellation Tech Active acoustical controlled enclosure.
CA2606442A1 (en) * 2006-10-16 2008-04-16 Bsh Home Appliances Corporation Sound altering apparatus
US8054984B2 (en) 2006-10-16 2011-11-08 Bsh Home Appliances Corporation Sound altering apparatus
DE102008038751B3 (en) * 2008-08-12 2010-04-15 Fresenius Medical Care Deutschland Gmbh Reverse osmosis system with a device for noise reduction and method for noise reduction of a reverse osmosis system
DE102009024343A1 (en) 2009-06-09 2010-12-16 Rohde & Schwarz Gmbh & Co. Kg Electronic device with noise suppression system
CN105139861B (en) * 2015-08-24 2018-08-17 昆明科林科技工程有限公司 A kind of reduction method and device administered for man-made noise
WO2018111233A1 (en) 2016-12-13 2018-06-21 Halliburton Energy Services, Inc. Reducing far-field noise produced by well operations
WO2018125116A1 (en) 2016-12-29 2018-07-05 Halliburton Energy Services, Inc. Active noise control for hydraulic fracturing equipment
EP4327322A1 (en) * 2021-04-21 2024-02-28 Sariaslan, Esra Method for reducing noise in machines

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4665549A (en) * 1985-12-18 1987-05-12 Nelson Industries Inc. Hybrid active silencer
GB2204916B (en) * 1987-05-19 1991-10-16 British Gas Plc A silencer
JP2709743B2 (en) * 1988-02-19 1998-02-04 ノイズ キャンセレーション テクノロジーズ インコーポレーテッド Active sound reduction system for engine exhaust system, etc.
JPH083395B2 (en) * 1988-09-30 1996-01-17 株式会社東芝 Silencer for cooling system

Also Published As

Publication number Publication date
EP0615648A4 (en) 1995-04-19
DK0615648T3 (en) 1999-11-01
CA2124183C (en) 1996-08-27
DE69131170D1 (en) 1999-05-27
EP0615648A1 (en) 1994-09-21
EP0615648B1 (en) 1999-04-21
WO1993011529A1 (en) 1993-06-10
DE69131170T2 (en) 1999-11-18
CA2124183A1 (en) 1993-06-10
JPH07504991A (en) 1995-06-01

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee