SG77636A1 - Wall cavity microphone turbulence shield - Google Patents

Wall cavity microphone turbulence shield

Info

Publication number
SG77636A1
SG77636A1 SG1998001155A SG1998001155A SG77636A1 SG 77636 A1 SG77636 A1 SG 77636A1 SG 1998001155 A SG1998001155 A SG 1998001155A SG 1998001155 A SG1998001155 A SG 1998001155A SG 77636 A1 SG77636 A1 SG 77636A1
Authority
SG
Singapore
Prior art keywords
wall cavity
cavity microphone
turbulence shield
turbulence
shield
Prior art date
Application number
SG1998001155A
Other languages
English (en)
Inventor
James T Rainey
Mark A Daniels
Cormick Duane C Mc
Shau-Tak R Chou
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
Publication of SG77636A1 publication Critical patent/SG77636A1/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
    • G10K11/002—Devices for damping, suppressing, obstructing or conducting sound in acoustic 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
    • 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
    • G10K11/17875—General system configurations using an error signal without a reference signal, e.g. pure feedback
    • 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
    • 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
    • G10K2210/108—Communication systems, e.g. where useful sound is kept and noise is cancelled
    • G10K2210/1082—Microphones, e.g. systems using "virtual" 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
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/10—Applications
    • G10K2210/109—Compressors, e.g. fans
    • 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
    • G10K2210/50—Miscellaneous
    • G10K2210/507—Flow or turbulence

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Duct Arrangements (AREA)
  • Air Conditioning Control Device (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Exhaust Silencers (AREA)
SG1998001155A 1997-06-06 1998-06-01 Wall cavity microphone turbulence shield SG77636A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US87102097A 1997-06-06 1997-06-06

Publications (1)

Publication Number Publication Date
SG77636A1 true SG77636A1 (en) 2001-01-16

Family

ID=25356543

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1998001155A SG77636A1 (en) 1997-06-06 1998-06-01 Wall cavity microphone turbulence shield

Country Status (10)

Country Link
EP (1) EP0883104B1 (de)
JP (1) JP2878275B2 (de)
KR (1) KR100344595B1 (de)
CN (1) CN1138084C (de)
AU (1) AU740156B2 (de)
BR (1) BR9801773A (de)
DE (1) DE69837900T2 (de)
ES (1) ES2286842T3 (de)
MY (1) MY125833A (de)
SG (1) SG77636A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2953305T3 (es) * 2009-11-02 2023-11-10 Mitsubishi Electric Corp Unidad exterior de un aparato de acondicionamiento de aire equipada con sistema de control de ruido
DE102012212843A1 (de) * 2012-07-23 2014-01-23 Behr Gmbh & Co. Kg Klimagerät
FR2996342A1 (fr) * 2012-10-02 2014-04-04 Peugeot Citroen Automobiles Sa Systeme de reduction du bruit d'un climatiseur
JP6617286B2 (ja) * 2015-09-30 2019-12-11 パナソニックＩｐマネジメント株式会社 送風装置
JP6689218B2 (ja) 2017-02-02 2020-04-28 株式会社東芝 電子装置および方法
CN111164671B (zh) * 2017-10-03 2023-09-01 富士胶片株式会社 消声管状结构体
KR20200021813A (ko) * 2018-08-21 2020-03-02 한온시스템 주식회사 차량용 공조장치
KR102644103B1 (ko) * 2019-01-29 2024-03-06 한온시스템 주식회사 차량용 공조장치

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8603678D0 (en) * 1986-02-14 1986-03-19 Gen Electric Co Plc Active noise control
US5457749A (en) * 1990-04-09 1995-10-10 Noise Cancellation Technologies, Inc. Electronic muffler
US5377275A (en) * 1992-07-29 1994-12-27 Kabushiki Kaisha Toshiba Active noise control apparatus
AU1907995A (en) * 1993-12-30 1995-08-01 Bolt Beranek And Newman Inc. Active muffler
DE4421803C2 (de) * 1994-06-22 1997-11-20 Stn Atlas Elektronik Gmbh Vorrichtung zur aktiven Schalldämpfung
US5606622A (en) * 1994-09-29 1997-02-25 The Boeing Company Active noise control in a duct with highly turbulent airflow
DE19526098C1 (de) * 1995-07-18 1996-09-12 Stn Atlas Elektronik Gmbh Verfahren zur Maximierung der Dämpfungswirkung einer Vorrichtung zur aktiven Geräuschdämpfung
FR2740599B1 (fr) * 1995-10-30 1997-12-19 Technofirst Dispositif d'attenuation acoustique active destine a etre dispose a l'interieur d'un conduit, en particulier pour l'insonorisation de reseau de ventilation et/ou de climatisation
US5808243A (en) * 1996-08-30 1998-09-15 Carrier Corporation Multistage turbulence shield for microphones

Also Published As

Publication number Publication date
CN1138084C (zh) 2004-02-11
KR100344595B1 (ko) 2002-09-18
BR9801773A (pt) 1999-07-13
DE69837900T2 (de) 2008-02-14
MY125833A (en) 2006-08-30
JP2878275B2 (ja) 1999-04-05
AU6996098A (en) 1998-12-10
EP0883104A3 (de) 2001-09-12
KR19990006719A (ko) 1999-01-25
CN1202592A (zh) 1998-12-23
JPH10339499A (ja) 1998-12-22
EP0883104A2 (de) 1998-12-09
ES2286842T3 (es) 2007-12-01
AU740156B2 (en) 2001-11-01
DE69837900D1 (de) 2007-07-26
EP0883104B1 (de) 2007-06-13

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