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DE59609740D1 - Arrangement for canceling sound waves - Google Patents

Arrangement for canceling sound waves

Info

Publication number
DE59609740D1
DE59609740D1 DE59609740T DE59609740T DE59609740D1 DE 59609740 D1 DE59609740 D1 DE 59609740D1 DE 59609740 T DE59609740 T DE 59609740T DE 59609740 T DE59609740 T DE 59609740T DE 59609740 D1 DE59609740 D1 DE 59609740D1
Authority
DE
Germany
Prior art keywords
arrangement
sound waves
canceling sound
canceling
waves
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
Application number
DE59609740T
Other languages
German (de)
Inventor
Stefan Geisenberger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harman Audio Electronic Systems GmbH
Original Assignee
Harman Audio Electronic Systems GmbH
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 Harman Audio Electronic Systems GmbH filed Critical Harman Audio Electronic Systems GmbH
Application granted granted Critical
Publication of DE59609740D1 publication Critical patent/DE59609740D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02—Energy absorbers; Noise absorbers
    • F16L55/033—Noise absorbers
    • F16L55/0333—Noise absorbers by means of an active system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/06—Silencing apparatus characterised by method of silencing by using interference effect
    • F01N1/065—Silencing apparatus characterised by method of silencing by using interference effect by using an active noise source, e.g. speakers
    • 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
    • G10K11/161—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general in systems with fluid flow

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
DE59609740T 1995-07-20 1996-07-05 Arrangement for canceling sound waves Expired - Fee Related DE59609740D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19526456 1995-07-20
DE19528888A DE19528888A1 (en) 1995-07-20 1995-08-05 Arrangement for canceling sound waves

Publications (1)

Publication Number Publication Date
DE59609740D1 true DE59609740D1 (en) 2002-11-07

Family

ID=7767303

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19528888A Withdrawn DE19528888A1 (en) 1995-07-20 1995-08-05 Arrangement for canceling sound waves
DE59609740T Expired - Fee Related DE59609740D1 (en) 1995-07-20 1996-07-05 Arrangement for canceling sound waves

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19528888A Withdrawn DE19528888A1 (en) 1995-07-20 1995-08-05 Arrangement for canceling sound waves

Country Status (1)

Country Link
DE (2) DE19528888A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19727657C1 (en) * 1997-06-30 1999-01-14 Inst Neurobiologie Direktor Pr Anti-noise loudspeaker combating noise for direct use in MR tomography esp. control of sound in brain and heart studies
DE10018032C1 (en) * 2000-04-04 2001-08-16 Leibniz Inst Fuer Neurobiologi Acoustic transducer for headphones
DE10018033C1 (en) * 2000-04-04 2001-11-29 Leibniz Inst Fuer Neurobiologi Acoustic transducer has membrane(s) of elastic, non-magnetic or weakly magnetic material connected to conducting tracks on which Lorenz force acts

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1064158C (en) * 1993-07-07 2001-04-04 莱斯特里兹股份有限公司&废气处理技术公司 Active sound damper

Also Published As

Publication number Publication date
DE19528888A1 (en) 1997-01-23

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee