SG77636A1 - Wall cavity microphone turbulence shield - Google Patents
Wall cavity microphone turbulence shieldInfo
- 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
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)
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 (en) |
JP (1) | JP2878275B2 (en) |
KR (1) | KR100344595B1 (en) |
CN (1) | CN1138084C (en) |
AU (1) | AU740156B2 (en) |
BR (1) | BR9801773A (en) |
DE (1) | DE69837900T2 (en) |
ES (1) | ES2286842T3 (en) |
MY (1) | MY125833A (en) |
SG (1) | SG77636A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5570522B2 (en) * | 2009-11-02 | 2014-08-13 | 三菱電機株式会社 | Air conditioner outdoor unit |
DE102012212843A1 (en) * | 2012-07-23 | 2014-01-23 | Behr Gmbh & Co. Kg | air conditioning |
FR2996342A1 (en) * | 2012-10-02 | 2014-04-04 | Peugeot Citroen Automobiles Sa | System for reducing noise of air-conditioner of motor bike, has control unit connected to loudspeaker to send command to reduce air-conditioner noise, and microphone and loudspeaker arranged in same section of air duct of air-conditioner |
JP6617286B2 (en) * | 2015-09-30 | 2019-12-11 | パナソニックIpマネジメント株式会社 | Blower |
JP6689218B2 (en) | 2017-02-02 | 2020-04-28 | 株式会社東芝 | Electronic device and method |
WO2019069908A1 (en) * | 2017-10-03 | 2019-04-11 | 富士フイルム株式会社 | Sound-damping tubular structure |
KR20200021813A (en) * | 2018-08-21 | 2020-03-02 | 한온시스템 주식회사 | Air conditioning system for automotive vehicles |
KR102644103B1 (en) * | 2019-01-29 | 2024-03-06 | 한온시스템 주식회사 | Air conditioning system for automotive vehicles |
Family Cites Families (9)
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 (en) * | 1994-06-22 | 1997-11-20 | Stn Atlas Elektronik Gmbh | Device for active sound attenuation |
US5606622A (en) * | 1994-09-29 | 1997-02-25 | The Boeing Company | Active noise control in a duct with highly turbulent airflow |
DE19526098C1 (en) * | 1995-07-18 | 1996-09-12 | Stn Atlas Elektronik Gmbh | Active sound-dampening equipment |
FR2740599B1 (en) * | 1995-10-30 | 1997-12-19 | Technofirst | ACTIVE ACOUSTIC MITIGATION DEVICE INTENDED TO BE ARRANGED WITHIN A DUCT, PARTICULARLY FOR SOUNDPROOFING A VENTILATION AND / OR AIR CONDITIONING NETWORK |
US5808243A (en) * | 1996-08-30 | 1998-09-15 | Carrier Corporation | Multistage turbulence shield for microphones |
-
1998
- 1998-05-23 MY MYPI98002303A patent/MY125833A/en unknown
- 1998-05-29 EP EP98630022A patent/EP0883104B1/en not_active Expired - Lifetime
- 1998-05-29 ES ES98630022T patent/ES2286842T3/en not_active Expired - Lifetime
- 1998-05-29 DE DE69837900T patent/DE69837900T2/en not_active Expired - Fee Related
- 1998-06-01 SG SG1998001155A patent/SG77636A1/en unknown
- 1998-06-04 BR BR9801773A patent/BR9801773A/en not_active Application Discontinuation
- 1998-06-05 KR KR1019980020932A patent/KR100344595B1/en not_active IP Right Cessation
- 1998-06-05 CN CNB981095623A patent/CN1138084C/en not_active Expired - Fee Related
- 1998-06-05 AU AU69960/98A patent/AU740156B2/en not_active Ceased
- 1998-06-08 JP JP10158707A patent/JP2878275B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR19990006719A (en) | 1999-01-25 |
CN1138084C (en) | 2004-02-11 |
EP0883104A2 (en) | 1998-12-09 |
JP2878275B2 (en) | 1999-04-05 |
DE69837900D1 (en) | 2007-07-26 |
BR9801773A (en) | 1999-07-13 |
ES2286842T3 (en) | 2007-12-01 |
JPH10339499A (en) | 1998-12-22 |
CN1202592A (en) | 1998-12-23 |
EP0883104B1 (en) | 2007-06-13 |
KR100344595B1 (en) | 2002-09-18 |
EP0883104A3 (en) | 2001-09-12 |
AU6996098A (en) | 1998-12-10 |
MY125833A (en) | 2006-08-30 |
AU740156B2 (en) | 2001-11-01 |
DE69837900T2 (en) | 2008-02-14 |
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