ATE71761T1 - Laermverminderungsanordnungen. - Google Patents

Laermverminderungsanordnungen.

Info

Publication number
ATE71761T1
ATE71761T1 AT86300791T AT86300791T ATE71761T1 AT E71761 T1 ATE71761 T1 AT E71761T1 AT 86300791 T AT86300791 T AT 86300791T AT 86300791 T AT86300791 T AT 86300791T AT E71761 T1 ATE71761 T1 AT E71761T1
Authority
AT
Austria
Prior art keywords
noise reduction
noise
ear
reduction arrangements
arrangement
Prior art date
Application number
AT86300791T
Other languages
English (en)
Inventor
Robert Christopher Twiney
Original Assignee
Siemens Plessey Electronic
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 Siemens Plessey Electronic filed Critical Siemens Plessey Electronic
Application granted granted Critical
Publication of ATE71761T1 publication Critical patent/ATE71761T1/de

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
    • G10K11/1787—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
    • G10K11/1781—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 characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions
    • G10K11/17821—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 characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions characterised by the analysis of the input signals only
    • G10K11/17825—Error signals
    • 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
    • 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
    • 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
    • G10K2210/1081—Earphones, e.g. for telephones, ear protectors or headsets
    • 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
    • G10K2210/3013—Analogue, i.e. using analogue computers or circuits
    • 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
    • G10K2210/3218—Filters other than the algorithm-related filters

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Headphones And Earphones (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Treating Waste Gases (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
AT86300791T 1985-02-21 1986-02-06 Laermverminderungsanordnungen. ATE71761T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB858504541A GB8504541D0 (en) 1985-02-21 1985-02-21 Noise reduction arrangements
EP86300791A EP0192379B1 (de) 1985-02-21 1986-02-06 Lärmverminderungsanordnungen

Publications (1)

Publication Number Publication Date
ATE71761T1 true ATE71761T1 (de) 1992-02-15

Family

ID=10574888

Family Applications (1)

Application Number Title Priority Date Filing Date
AT86300791T ATE71761T1 (de) 1985-02-21 1986-02-06 Laermverminderungsanordnungen.

Country Status (4)

Country Link
EP (1) EP0192379B1 (de)
AT (1) ATE71761T1 (de)
DE (1) DE3683380D1 (de)
GB (1) GB8504541D0 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8910815U1 (de) * 1989-09-11 1989-11-23 Kind, Werner, 3006 Burgwedel Gehörschutzvorrichtung
EP1074970B1 (de) * 1995-07-03 2003-04-23 National Research Council Of Canada Digitales vorwärtsgeregeltes System für aktive Lärmkontrolle
US5852667A (en) * 1995-07-03 1998-12-22 Pan; Jianhua Digital feed-forward active noise control system
GB2360165A (en) * 2000-03-07 2001-09-12 Central Research Lab Ltd A method of improving the audibility of sound from a loudspeaker located close to an ear
EP2285135A1 (de) * 2009-07-07 2011-02-16 Nxp B.V. Mikrophon-Lautsprecher-Vorrichtung, die einen Tiefpassfilter umfasst

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2601661A1 (de) * 1976-01-17 1977-07-21 Battelle Institut E V Vorrichtung zum persoenlichen schallschutz
FR2398425A1 (fr) * 1977-07-18 1979-02-16 Hehemann Guenter Casque stereophonique
DE2925134A1 (de) * 1979-06-22 1981-01-08 Sennheiser Electronic Gehoerschutzvorrichtung
DE3411494A1 (de) * 1984-03-28 1985-10-03 Axel 6000 Frankfurt Klopprogge Verfahren zur unterdrueckung von schall sowie schaltungsanordnung und schallschutzvorrichtung zur durchfuehrung des verfahrens

Also Published As

Publication number Publication date
EP0192379A2 (de) 1986-08-27
DE3683380D1 (de) 1992-02-27
EP0192379B1 (de) 1992-01-15
EP0192379A3 (en) 1987-06-03
GB8504541D0 (en) 1985-03-27

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
EEFA Change of the company name
REN Ceased due to non-payment of the annual fee