ATE191303T1 - System zur reduktion von periodischen störungen - Google Patents

System zur reduktion von periodischen störungen

Info

Publication number
ATE191303T1
ATE191303T1 AT92914496T AT92914496T ATE191303T1 AT E191303 T1 ATE191303 T1 AT E191303T1 AT 92914496 T AT92914496 T AT 92914496T AT 92914496 T AT92914496 T AT 92914496T AT E191303 T1 ATE191303 T1 AT E191303T1
Authority
AT
Austria
Prior art keywords
disturbance signal
variable delay
sensor
inverse filter
reducing periodic
Prior art date
Application number
AT92914496T
Other languages
English (en)
Inventor
Graham Eatwell
Original Assignee
Noise Cancellation Tech
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 Noise Cancellation Tech filed Critical Noise Cancellation Tech
Application granted granted Critical
Publication of ATE191303T1 publication Critical patent/ATE191303T1/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
    • G10K11/1781—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
    • 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
    • G10K11/17875—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
    • G10K11/1787—General system configurations
    • G10K11/17879—General system configurations using both a reference signal and an error signal
    • G10K11/17883—General system configurations using both a reference signal and an error signal the reference signal being derived from a machine operating condition, e.g. engine RPM or vehicle speed
    • 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
    • G10K2210/121—Rotating machines, e.g. engines, turbines, motors; Periodic or quasi-periodic signals in general
    • 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
    • G10K2210/3028—Filtering, e.g. Kalman filters or special analogue or digital filters
    • 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
    • G10K2210/3032—Harmonics or sub-harmonics
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Feedback Control In General (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
AT92914496T 1992-06-25 1992-06-25 System zur reduktion von periodischen störungen ATE191303T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1992/005229 WO1994000930A1 (en) 1992-06-25 1992-06-25 Control system for periodic disturbances

Publications (1)

Publication Number Publication Date
ATE191303T1 true ATE191303T1 (de) 2000-04-15

Family

ID=22231181

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92914496T ATE191303T1 (de) 1992-06-25 1992-06-25 System zur reduktion von periodischen störungen

Country Status (4)

Country Link
EP (1) EP0694234B1 (de)
AT (1) ATE191303T1 (de)
DE (1) DE69230867T2 (de)
WO (1) WO1994000930A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0737331B1 (de) * 1994-10-28 2001-12-19 Koninklijke Philips Electronics N.V. Regelungssystem und regelungsmittel zum regeln einer grösse eines solchen regelungssystems
FR2782863A1 (fr) * 1998-08-25 2000-03-03 Philips Consumer Communication Appareil de telecommunication destine a transmettre des informations et procede pour eliminer des bruits presentant un caractere periodique
KR20010030739A (ko) * 1998-07-28 2001-04-16 요트.게.아. 롤페즈 통신 단말기
CN101765701B (zh) 2007-07-03 2013-07-10 O·M·P·奥菲奇内·马佐科·帕尼奥尼有限公司 用于机动车辆发动机的真空泵

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4449235A (en) * 1982-07-14 1984-05-15 The United States Of America As Represented By The Secretary Of The Air Force Electronic cancelling of acoustic traveling waves
AT379274B (de) * 1983-12-22 1985-12-10 Akg Akustische Kino Geraete Anordnung zur unterdrueckung der amplitudenspitzen am beginn von explosivlauten in einem elektroakustischen uebertragungssystem, an dessen eingang ein mikrophon angeordnet ist
SE445697B (sv) * 1984-11-21 1986-07-07 Jiri Klokocka Anordning for eliminering av brum i en signal
US4837834A (en) * 1988-05-04 1989-06-06 Nelson Industries, Inc. Active acoustic attenuation system with differential filtering
JPH0310297A (ja) * 1989-06-07 1991-01-17 Nec Eng Ltd 消音装置
EP0465174B1 (de) * 1990-06-29 1996-10-23 Kabushiki Kaisha Toshiba Adaptive aktive Lärmunterdrückungseinrichtung

Also Published As

Publication number Publication date
EP0694234A4 (de) 1995-09-14
EP0694234B1 (de) 2000-03-29
WO1994000930A1 (en) 1994-01-06
DE69230867T2 (de) 2000-11-02
EP0694234A1 (de) 1996-01-31
DE69230867D1 (de) 2000-05-04

Similar Documents

Publication Publication Date Title
BR9612783A (pt) Aparelho de controle de potência para sistemas de iluminação
KR930005445A (ko) 영상 신호 처리 장치
EP0084376A3 (de) Klopfsteuersystem
ATE191303T1 (de) System zur reduktion von periodischen störungen
FI930822A (fi) Foerstyrd reglering saerskilt foer en valsstol
DE69130112T2 (de) System zur aktiven regelung von schwingungen
RU2001129730A (ru) Адаптивная цифровая комбинированная система управления нестационарными технологическими объектами
DE69216074T2 (de) Störungsverminderung in einem versorgungsnetz
CA2138553A1 (en) Control system for periodic disturbances
DE69429574D1 (de) Regelung des Ablaufs von Zeigeranpassungsereignissen
CA2182033A1 (en) Method and apparatus for controlling an electro-optical switch
TW236056B (en) Digital voltage regulator
JPS5771034A (en) Bus conflict preventing circuit
JPS6489287A (en) Illumination control system
KR970057593A (ko) 온타이머 기능에 의한 사운드 가변장치
KR920018544A (ko) 비선형 p 이득을 갖는 디지탈 pid 제어방법
GB1240825A (en) Improvements in or relating to adaptive model derived control systems
GB1062860A (en) Closed loop control system
KR930018976A (ko) 티브이 시스템의 음량 자동 조절장치
GB1530540A (en) System for delaying a signal
KR960009450B1 (en) Selective call receiver with decoder controlled filters
JPS6448101A (en) Control method for follow-up control system
JPS57190276A (en) Circuit testing system
JPS56162168A (en) Timing control system for distributed system
JPS54118543A (en) Load sharing in power source

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties