DE29804584U1 - Aktiver akustischer Resonator zur Lärmminderung - Google Patents
Aktiver akustischer Resonator zur LärmminderungInfo
- Publication number
- DE29804584U1 DE29804584U1 DE29804584U DE29804584U DE29804584U1 DE 29804584 U1 DE29804584 U1 DE 29804584U1 DE 29804584 U DE29804584 U DE 29804584U DE 29804584 U DE29804584 U DE 29804584U DE 29804584 U1 DE29804584 U1 DE 29804584U1
- Authority
- DE
- Germany
- Prior art keywords
- membrane
- controller
- acoustic resonator
- transfer function
- actuator
- 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.)
- Expired - Lifetime
Links
- 230000009467 reduction Effects 0.000 title claims description 8
- 239000012528 membrane Substances 0.000 claims description 23
- 230000033001 locomotion Effects 0.000 claims description 8
- 238000005259 measurement Methods 0.000 claims description 4
- 230000003321 amplification Effects 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000001133 acceleration Effects 0.000 description 2
- 244000309464 bull Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
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
-
- 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
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/30—Means
- G10K2210/301—Computational
- G10K2210/3026—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
- 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
-
- 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
- G10K2210/511—Narrow band, e.g. implementations for single frequency cancellation
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Circuit For Audible Band Transducer (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Description
11997 GM
11997 GM
11997 GM
11997 GM
Fig. 2 ein dazugehöriges Blockschaltbild,
• " &phgr; |
> &phgr; · · *
• · · &phgr; |
··· · &phgr;
«&phgr; &phgr; |
16.03.1998 |
»· &phgr;« | ·· ** | »·. ·· | 11997 GM |
5 | Ellerich/Th | ||
11997 GM
11997 GM
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29804584U DE29804584U1 (de) | 1997-03-18 | 1998-03-17 | Aktiver akustischer Resonator zur Lärmminderung |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97104553 | 1997-03-18 | ||
DE19711320 | 1997-03-18 | ||
DE29804584U DE29804584U1 (de) | 1997-03-18 | 1998-03-17 | Aktiver akustischer Resonator zur Lärmminderung |
Publications (1)
Publication Number | Publication Date |
---|---|
DE29804584U1 true DE29804584U1 (de) | 1998-05-14 |
Family
ID=26034980
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE29804584U Expired - Lifetime DE29804584U1 (de) | 1997-03-18 | 1998-03-17 | Aktiver akustischer Resonator zur Lärmminderung |
Country Status (2)
Country | Link |
---|---|
US (1) | US6151396A (de) |
DE (1) | DE29804584U1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6778673B1 (en) * | 1998-10-28 | 2004-08-17 | Maximilian Hans Hobelsberger | Tunable active sound absorbers |
US7305094B2 (en) * | 2001-01-12 | 2007-12-04 | University Of Dayton | System and method for actively damping boom noise in a vibro-acoustic enclosure |
US7819221B1 (en) | 2005-09-27 | 2010-10-26 | The United States Of America As Represented By The Secretary Of The Air Force | Lightweight acoustic damping treatment |
US8006442B2 (en) * | 2007-07-02 | 2011-08-30 | The Hong Kong Polytechnic University | Double-glazed windows with inherent noise attenuation |
US8800736B2 (en) * | 2008-05-30 | 2014-08-12 | Design, Imaging & Control, Inc. | Adjustable tuned mass damper systems |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2814093C2 (de) * | 1978-04-01 | 1980-05-14 | Messerschmitt-Boelkow-Blohm Gmbh, 8000 Muenchen | Antischallgeber |
JPS647797A (en) * | 1987-06-30 | 1989-01-11 | Bridgestone Corp | Sound insulation device |
EP0434468A3 (en) * | 1989-12-22 | 1992-05-27 | Bridgestone Corporation | Vibration control system |
US5953428A (en) * | 1996-04-30 | 1999-09-14 | Lucent Technologies Inc. | Feedback method of noise control having multiple inputs and outputs |
-
1998
- 1998-03-17 US US09/042,707 patent/US6151396A/en not_active Expired - Lifetime
- 1998-03-17 DE DE29804584U patent/DE29804584U1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US6151396A (en) | 2000-11-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R207 | Utility model specification |
Effective date: 19980625 |
|
R081 | Change of applicant/patentee |
Owner name: EADS DEUTSCHLAND GMBH, DE Free format text: FORMER OWNER: DAIMLER-BENZ AKTIENGESELLSCHAFT, 70567 STUTTGART, DE Effective date: 19990323 |
|
R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 20010406 |
|
R081 | Change of applicant/patentee |
Owner name: EADS DEUTSCHLAND GMBH, DE Free format text: FORMER OWNER: DAIMLERCHRYSLER AG, 70567 STUTTGART, DE Effective date: 20020903 |
|
R151 | Utility model maintained after payment of second maintenance fee after six years |
Effective date: 20040331 |
|
R152 | Utility model maintained after payment of third maintenance fee after eight years |
Effective date: 20060330 |
|
R071 | Expiry of right |