DE4027511C1 - - Google Patents
Info
- Publication number
- DE4027511C1 DE4027511C1 DE4027511A DE4027511A DE4027511C1 DE 4027511 C1 DE4027511 C1 DE 4027511C1 DE 4027511 A DE4027511 A DE 4027511A DE 4027511 A DE4027511 A DE 4027511A DE 4027511 C1 DE4027511 C1 DE 4027511C1
- Authority
- DE
- Germany
- Prior art keywords
- absorber
- sound
- hybrid
- passive
- active
- 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 - Fee Related
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
- G10K11/17861—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
- 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
- G10K2210/509—Hybrid, i.e. combining different technologies, e.g. passive and active
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4027511A DE4027511C1 (ja) | 1990-08-30 | 1990-08-30 | |
EP19910114279 EP0473095A3 (en) | 1990-08-30 | 1991-08-26 | Hybrid sound attenuator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4027511A DE4027511C1 (ja) | 1990-08-30 | 1990-08-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE4027511C1 true DE4027511C1 (ja) | 1991-10-02 |
Family
ID=6413270
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4027511A Expired - Fee Related DE4027511C1 (ja) | 1990-08-30 | 1990-08-30 |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0473095A3 (ja) |
DE (1) | DE4027511C1 (ja) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4226885A1 (de) * | 1992-08-13 | 1994-02-17 | Bayerische Motoren Werke Ag | Schallabsorptionsverfahren für Kraftfahrzeuge |
DE4342133A1 (de) * | 1993-12-10 | 1995-06-14 | Nokia Deutschland Gmbh | Anordnung zur aktiven Schalldämpfung |
DE4421803A1 (de) * | 1994-06-22 | 1996-01-04 | Stn Atlas Elektronik Gmbh | Vorrichtung zur aktiven Schalldämpfung |
WO1997043754A1 (de) * | 1996-05-14 | 1997-11-20 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Reaktiver schalldämpfer |
EP0712114A3 (en) * | 1994-11-14 | 1998-01-07 | General Electric Company | Active acoustic liner |
US5812686A (en) * | 1992-03-24 | 1998-09-22 | Hobelsberger; Maximilian Hans | Device for active simultation of an acoustical impedance |
DE19910169A1 (de) * | 1999-02-24 | 2000-09-07 | Deutsch Zentr Luft & Raumfahrt | Verfahren zur aktiven Geräuschminderung in Strömungskanälen von Turbomaschinen |
DE10118187A1 (de) * | 2001-04-11 | 2002-11-21 | Siemens Ag | Einrichtung zum Gestalten der Akustik eines Raumes |
US6715580B1 (en) | 1997-11-12 | 2004-04-06 | Stankiewicz Gmbh | Gas flow-through line with sound absorption effect |
DE4308961B4 (de) * | 1992-03-24 | 2005-08-18 | Maximilian Hobelsberger | Aktives, akustisch wirksames Wandelement mit vorgebbarer akustischer Impedanz |
US6963647B1 (en) | 1998-12-15 | 2005-11-08 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Controlled acoustic waveguide for soundproofing |
DE10338786B4 (de) * | 2003-07-18 | 2006-03-09 | Weiss Klimatechnik Gmbh | Zuluftdecke |
DE102007000568A1 (de) | 2007-10-24 | 2009-04-30 | Silencesolutions Gmbh | Schallabsorber |
EP2314783A1 (de) | 2009-10-21 | 2011-04-27 | Thorsten Flörsheimer | Raumschallabsorber |
EP2105587B1 (de) * | 2008-03-27 | 2012-07-04 | J. Eberspächer GmbH & Co. KG | Abgasanlage |
WO2016083971A1 (en) * | 2014-11-28 | 2016-06-02 | Relec Sa | Low frequency active acoustic absorber by acoustic velocity control through porous resistive layers |
DE102019101358A1 (de) | 2019-01-21 | 2020-07-23 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Luftfahrzeug |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19746645C1 (de) * | 1997-10-22 | 1999-05-20 | Fraunhofer Ges Forschung | Adaptiver akustischer Monitor |
PL442352A1 (pl) * | 2022-09-24 | 2024-03-25 | Kfb Acoustics Spółka Z Ograniczoną Odpowiedzialnością | Tłumik pasywno-aktywny do redukcji hałasu w kanałach |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2712534A1 (de) * | 1977-03-22 | 1978-09-28 | Sound Attenuators Ltd | Verfahren und vorrichtung zur aktiven schalldaempfung |
DE3425450A1 (de) * | 1983-09-22 | 1985-04-04 | Rox Lufttechnische Gerätebau GmbH, 5000 Köln | Geraeteschalldaempfer |
Family Cites Families (2)
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 |
-
1990
- 1990-08-30 DE DE4027511A patent/DE4027511C1/de not_active Expired - Fee Related
-
1991
- 1991-08-26 EP EP19910114279 patent/EP0473095A3/de not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2712534A1 (de) * | 1977-03-22 | 1978-09-28 | Sound Attenuators Ltd | Verfahren und vorrichtung zur aktiven schalldaempfung |
DE3425450A1 (de) * | 1983-09-22 | 1985-04-04 | Rox Lufttechnische Gerätebau GmbH, 5000 Köln | Geraeteschalldaempfer |
Non-Patent Citations (1)
Title |
---|
Mujal, M.L., Eriksson, L.J.: "Analysis of a bybrid noise control system for a duct", J. Acoust. Soc. Amer. 86(1989), S. 832-834 * |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5812686A (en) * | 1992-03-24 | 1998-09-22 | Hobelsberger; Maximilian Hans | Device for active simultation of an acoustical impedance |
DE4308961B4 (de) * | 1992-03-24 | 2005-08-18 | Maximilian Hobelsberger | Aktives, akustisch wirksames Wandelement mit vorgebbarer akustischer Impedanz |
DE4226885A1 (de) * | 1992-08-13 | 1994-02-17 | Bayerische Motoren Werke Ag | Schallabsorptionsverfahren für Kraftfahrzeuge |
DE4226885C2 (de) * | 1992-08-13 | 2001-04-19 | Bayerische Motoren Werke Ag | Schallabsorptionsverfahren für Kraftfahrzeuge |
DE4342133A1 (de) * | 1993-12-10 | 1995-06-14 | Nokia Deutschland Gmbh | Anordnung zur aktiven Schalldämpfung |
DE4421803A1 (de) * | 1994-06-22 | 1996-01-04 | Stn Atlas Elektronik Gmbh | Vorrichtung zur aktiven Schalldämpfung |
EP0712114A3 (en) * | 1994-11-14 | 1998-01-07 | General Electric Company | Active acoustic liner |
WO1997043754A1 (de) * | 1996-05-14 | 1997-11-20 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Reaktiver schalldämpfer |
US6715580B1 (en) | 1997-11-12 | 2004-04-06 | Stankiewicz Gmbh | Gas flow-through line with sound absorption effect |
US6963647B1 (en) | 1998-12-15 | 2005-11-08 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Controlled acoustic waveguide for soundproofing |
DE19910169B4 (de) * | 1999-02-24 | 2004-01-29 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Verfahren zur aktiven Geräuschminderung in Strömungskanälen von Turbomaschinen |
DE19910169A1 (de) * | 1999-02-24 | 2000-09-07 | Deutsch Zentr Luft & Raumfahrt | Verfahren zur aktiven Geräuschminderung in Strömungskanälen von Turbomaschinen |
DE10118187C2 (de) * | 2001-04-11 | 2003-03-27 | Siemens Ag | Einrichtung zum Gestalten der Akustik eines Raumes |
DE10118187A1 (de) * | 2001-04-11 | 2002-11-21 | Siemens Ag | Einrichtung zum Gestalten der Akustik eines Raumes |
DE10338786B4 (de) * | 2003-07-18 | 2006-03-09 | Weiss Klimatechnik Gmbh | Zuluftdecke |
DE102007000568A1 (de) | 2007-10-24 | 2009-04-30 | Silencesolutions Gmbh | Schallabsorber |
US8631899B2 (en) | 2007-10-24 | 2014-01-21 | Silenceresearch Gmbh | Sound absorber |
EP2105587B1 (de) * | 2008-03-27 | 2012-07-04 | J. Eberspächer GmbH & Co. KG | Abgasanlage |
EP2314783A1 (de) | 2009-10-21 | 2011-04-27 | Thorsten Flörsheimer | Raumschallabsorber |
WO2011047806A2 (de) | 2009-10-21 | 2011-04-28 | Floersheimer Thorsten | Raumschallabsorber |
WO2016083971A1 (en) * | 2014-11-28 | 2016-06-02 | Relec Sa | Low frequency active acoustic absorber by acoustic velocity control through porous resistive layers |
DE102019101358A1 (de) | 2019-01-21 | 2020-07-23 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Luftfahrzeug |
Also Published As
Publication number | Publication date |
---|---|
EP0473095A2 (de) | 1992-03-04 |
EP0473095A3 (en) | 1993-02-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8100 | Publication of the examined application without publication of unexamined application | ||
D1 | Grant (no unexamined application published) patent law 81 | ||
8364 | No opposition during term of opposition | ||
8320 | Willingness to grant licences declared (paragraph 23) | ||
8339 | Ceased/non-payment of the annual fee |