FI915143A0 - Active noise reduction system - Google Patents

Active noise reduction system

Info

Publication number
FI915143A0
FI915143A0 FI915143A FI915143A FI915143A0 FI 915143 A0 FI915143 A0 FI 915143A0 FI 915143 A FI915143 A FI 915143A FI 915143 A FI915143 A FI 915143A FI 915143 A0 FI915143 A0 FI 915143A0
Authority
FI
Finland
Prior art keywords
noise reduction
reduction system
active noise
active
reduction
Prior art date
Application number
FI915143A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI915143A (en
FI94563B (en
FI94563C (en
Inventor
Juha Kuusama
Original Assignee
Nokia Unterhaltungselektronik
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 Unterhaltungselektronik filed Critical Nokia Unterhaltungselektronik
Priority to FI915143A priority Critical patent/FI94563C/en
Publication of FI915143A0 publication Critical patent/FI915143A0/en
Priority to EP92118416A priority patent/EP0539940B1/en
Priority to DE69210169T priority patent/DE69210169T2/en
Priority to JP29280692A priority patent/JP3412846B2/en
Publication of FI915143A publication Critical patent/FI915143A/en
Publication of FI94563B publication Critical patent/FI94563B/en
Application granted granted Critical
Publication of FI94563C publication Critical patent/FI94563C/en

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
FI915143A 1991-10-31 1991-10-31 Active noise canceling system FI94563C (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FI915143A FI94563C (en) 1991-10-31 1991-10-31 Active noise canceling system
EP92118416A EP0539940B1 (en) 1991-10-31 1992-10-28 Active noise cancellation system
DE69210169T DE69210169T2 (en) 1991-10-31 1992-10-28 Active noise reduction system
JP29280692A JP3412846B2 (en) 1991-10-31 1992-10-30 Active noise cancellation system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI915143 1991-10-31
FI915143A FI94563C (en) 1991-10-31 1991-10-31 Active noise canceling system

Publications (4)

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

Family

ID=8533403

Family Applications (1)

Application Number Title Priority Date Filing Date
FI915143A FI94563C (en) 1991-10-31 1991-10-31 Active noise canceling system

Country Status (4)

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

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5485523A (en) * 1992-03-17 1996-01-16 Fuji Jukogyo Kabushiki Kaisha Active noise reduction system for automobile compartment
JP3410141B2 (en) * 1993-03-29 2003-05-26 富士重工業株式会社 Vehicle interior noise reduction device
US5692055A (en) * 1996-09-24 1997-11-25 Honda Giken Kogyo Kabushiki Kaisha Active noise-suppressive control method and apparatus
ES2143952B1 (en) * 1998-05-20 2000-12-01 Univ Madrid Politecnica ACTIVE ATTENUATOR OF ACOUSTIC NOISE THROUGH GENETIC ADAPTIVE ALGORITHM.
DE102004006604B4 (en) * 2004-02-11 2020-03-12 Volkswagen Ag Device and method for reducing noise in the interior of a motor vehicle
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
EP3245651B1 (en) * 2016-04-06 2018-10-03 Eberspächer Exhaust Technology GmbH & Co. KG System and method for influencing sound in an active manner

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS599699A (en) * 1982-07-07 1984-01-19 日産自動車株式会社 Control of sound field in chamber of automobile
FR2531023B1 (en) * 1982-08-02 1987-04-30 Peugeot NOISE MITIGATION DEVICE IN THE INTERIOR OF A MOTOR VEHICLE

Also Published As

Publication number Publication date
FI915143A (en) 1993-05-01
EP0539940A1 (en) 1993-05-05
EP0539940B1 (en) 1996-04-24
FI94563B (en) 1995-06-15
FI94563C (en) 1995-09-25
JP3412846B2 (en) 2003-06-03
DE69210169D1 (en) 1996-05-30
DE69210169T2 (en) 1996-10-02
JPH05241581A (en) 1993-09-21

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Legal Events

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BB Publication of examined application
MA Patent expired
PC Transfer of assignment of patent

Owner name: HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH

Free format text: HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH