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FI94563C - Aktivt bullerdämpnigssystem - Google Patents

Aktivt bullerdämpnigssystem Download PDF

Info

Publication number
FI94563C
FI94563C FI915143A FI915143A FI94563C FI 94563 C FI94563 C FI 94563C FI 915143 A FI915143 A FI 915143A FI 915143 A FI915143 A FI 915143A FI 94563 C FI94563 C FI 94563C
Authority
FI
Finland
Prior art keywords
noise
signal
gain
generating
amplifier
Prior art date
Application number
FI915143A
Other languages
English (en)
Finnish (fi)
Other versions
FI915143A0 (sv
FI94563B (sv
FI915143A (sv
Inventor
Juha Kuusama
Original Assignee
Nokia Deutschland 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 Nokia Deutschland Gmbh filed Critical Nokia Deutschland Gmbh
Priority to FI915143A priority Critical patent/FI94563C/sv
Publication of FI915143A0 publication Critical patent/FI915143A0/sv
Priority to DE69210169T priority patent/DE69210169T2/de
Priority to EP92118416A priority patent/EP0539940B1/en
Priority to JP29280692A priority patent/JP3412846B2/ja
Publication of FI915143A publication Critical patent/FI915143A/sv
Publication of FI94563B publication Critical patent/FI94563B/sv
Application granted granted Critical
Publication of FI94563C publication Critical patent/FI94563C/sv

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
    • G10K11/1781—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
    • G10K11/17823—Reference signals, e.g. ambient acoustic environment
    • 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
    • G10K11/17854—Methods, e.g. algorithms; Devices of the filter the filter being an adaptive 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
    • G10K11/17879—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
    • G10K2210/128—Vehicles
    • 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
    • G10K2210/3039—Nonlinear, e.g. clipping, numerical truncation, thresholding or variable input and output gain
    • 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
    • G10K2210/3045—Multiple acoustic inputs, single acoustic output
    • 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
    • G10K2210/3046—Multiple acoustic inputs, multiple acoustic outputs

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Claims (2)

1. Aktivt bullerdämpningssystem för ett motorfor-don, vilket system omfattar organ (1) för generering av en 5 eller flera elektriska signaler proportionella mot bullret inom mälomärdet, ett elektroniskt organ (2), sisom ett adaptivt filter, som mottager dessa signaler för generering av en motbullersignal, en eller flera ljudkällor (3) anslutna tili nämnda elektroniska organ för generering av 10 motbuller inom mälomrädet och en eller flera detektorer (4) för detektering av restbuller inom mälomrädet och för överföring av detsamma i elektrisk form till det elektroniska organet (2) för avstämning av dess funktion, k ä n -netecknat därav att mellan motbullerkällan eller 15 -källorna (3) och organet (2) som genererar motbullersig-nalen har anordnats en förstärkare (5) för regiering av motbullersignalens förstärkning pä basis av en signal (z) proportionell mot varvtalet hos fordonets motor.
2. System enligt patentkrav 1, känneteck-20 n a t därav att förstärkarens (5) förstärkning är omvänt proportionell mot frekvensen hos signalen (z) som styr den. • ·
FI915143A 1991-10-31 1991-10-31 Aktivt bullerdämpnigssystem FI94563C (sv)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FI915143A FI94563C (sv) 1991-10-31 1991-10-31 Aktivt bullerdämpnigssystem
DE69210169T DE69210169T2 (de) 1991-10-31 1992-10-28 Aktives Lärmunterdrückungssystem
EP92118416A EP0539940B1 (en) 1991-10-31 1992-10-28 Active noise cancellation system
JP29280692A JP3412846B2 (ja) 1991-10-31 1992-10-30 アクチブ雑音消去システム

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI915143A FI94563C (sv) 1991-10-31 1991-10-31 Aktivt bullerdämpnigssystem
FI915143 1991-10-31

Publications (4)

Publication Number Publication Date
FI915143A0 FI915143A0 (sv) 1991-10-31
FI915143A FI915143A (sv) 1993-05-01
FI94563B FI94563B (sv) 1995-06-15
FI94563C true FI94563C (sv) 1995-09-25

Family

ID=8533403

Family Applications (1)

Application Number Title Priority Date Filing Date
FI915143A FI94563C (sv) 1991-10-31 1991-10-31 Aktivt bullerdämpnigssystem

Country Status (4)

Country Link
EP (1) EP0539940B1 (sv)
JP (1) JP3412846B2 (sv)
DE (1) DE69210169T2 (sv)
FI (1) FI94563C (sv)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2265277B (en) * 1992-03-17 1996-07-24 Fuji Heavy Ind Ltd Noise reduction system for automobile compartment
JP3410141B2 (ja) * 1993-03-29 2003-05-26 富士重工業株式会社 車室内騒音低減装置
US5692055A (en) * 1996-09-24 1997-11-25 Honda Giken Kogyo Kabushiki Kaisha Active noise-suppressive control method and apparatus
ES2143952B1 (es) * 1998-05-20 2000-12-01 Univ Madrid Politecnica Atenuador activo de ruido acustico mediante algoritmo adaptativo genetico.
DE102004006604B4 (de) * 2004-02-11 2020-03-12 Volkswagen Ag Einrichtung und Verfahren zur Verringerung von Geräuschen im Innenraum eines Kraftfahrzeuges
US8135140B2 (en) 2008-11-20 2012-03-13 Harman International Industries, Incorporated System for active noise control with audio signal compensation
US9020158B2 (en) 2008-11-20 2015-04-28 Harman International Industries, Incorporated Quiet zone control system
US8718289B2 (en) 2009-01-12 2014-05-06 Harman International Industries, Incorporated System for active noise control with parallel adaptive filter configuration
US8189799B2 (en) 2009-04-09 2012-05-29 Harman International Industries, Incorporated System for active noise control based on audio system output
US8199924B2 (en) 2009-04-17 2012-06-12 Harman International Industries, Incorporated System for active noise control with an infinite impulse response filter
US8077873B2 (en) 2009-05-14 2011-12-13 Harman International Industries, Incorporated System for active noise control with adaptive speaker selection
JP6795613B2 (ja) * 2016-04-06 2020-12-02 エーバーシュペッヒャー・エグゾースト・テクノロジー・ゲーエムベーハー・ウント・コンパニー・カーゲー 音に能動的に影響を与えるためのシステムおよび方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS599699A (ja) * 1982-07-07 1984-01-19 日産自動車株式会社 自動車の車室内音場制御装置
FR2531023B1 (fr) * 1982-08-02 1987-04-30 Peugeot Dispositif d'attenuation du bruit dans l'habitacle d'un vehicule automobile

Also Published As

Publication number Publication date
DE69210169T2 (de) 1996-10-02
FI915143A0 (sv) 1991-10-31
DE69210169D1 (de) 1996-05-30
FI94563B (sv) 1995-06-15
JP3412846B2 (ja) 2003-06-03
EP0539940A1 (en) 1993-05-05
EP0539940B1 (en) 1996-04-24
FI915143A (sv) 1993-05-01
JPH05241581A (ja) 1993-09-21

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MA Patent expired
PC Transfer of assignment of patent

Owner name: HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH

Free format text: HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH