ES2134353T3 - Casco para anulacion de ruido activo con reducida susceptibilidad de sobrecarga de vlf. - Google Patents

Casco para anulacion de ruido activo con reducida susceptibilidad de sobrecarga de vlf.

Info

Publication number
ES2134353T3
ES2134353T3 ES94921355T ES94921355T ES2134353T3 ES 2134353 T3 ES2134353 T3 ES 2134353T3 ES 94921355 T ES94921355 T ES 94921355T ES 94921355 T ES94921355 T ES 94921355T ES 2134353 T3 ES2134353 T3 ES 2134353T3
Authority
ES
Spain
Prior art keywords
low frequency
cancellation
active noise
overload
vlf
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 - Lifetime
Application number
ES94921355T
Other languages
English (en)
Inventor
Owen Jones
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.)
Noise Cancellation Technologies Inc
Original Assignee
Noise Cancellation Technologies Inc
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 Technologies Inc filed Critical Noise Cancellation Technologies Inc
Application granted granted Critical
Publication of ES2134353T3 publication Critical patent/ES2134353T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G10K11/1785—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
    • 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
    • G10K11/1781—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
    • G10K11/17853—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
    • G10K11/1787—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
    • G10K2210/108—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
    • G10K2210/3028—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
    • G10K2210/3039—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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

LA SUSCEPTIBILIDAD DE UN SISTEMA DE CANCELACION DE RUIDO ACTIVO A LA SOBRECARGA DEBIDO A FRECUENCIAS MUY BAJAS SE REDUCE SUBSTRAYENDO LOS COMPONENTES DE BAJA FRECUENCIA DE UN CAMPO DE RUIDO APLICADO DE LA SEÑAL RESIDUAL. LOS COMPONENTES DE BAJA FRECUENCIA DEL CAMPO DE RUIDO APLICADO FUERA DEL AMBITO NORMAL DE LA AUDICION HUMANA SE DETECTAN MEDIANTE UN SENSOR EXTERNO (14) Y SE AISLAN MEDIANTE UN CIRCUITO DE FILTRO (15). LA SEÑAL DE BAJA FRECUENCIA AISLADA SE SUSTRAE DE LA SEÑAL RESIDUAL, RESULTANDO EN UNA SEÑAL RESIDUAL MODIFICADA CON COMPONENTES DE BAJA FRECUENCIA REDUCIDOS. EL SISTEMA DE CANCELACION ELIMINA ASI LAS SEÑALES DE CANCELACION DE MUY BAJA FRECUENCIA, SIN SACRIFICAR LA ACTUACION DEL ANCHO DE BANDA O SISTEMA DENTRO DEL AMBITO AUDIBLE.
ES94921355T 1993-06-22 1994-06-22 Casco para anulacion de ruido activo con reducida susceptibilidad de sobrecarga de vlf. Expired - Lifetime ES2134353T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/081,420 US5452361A (en) 1993-06-22 1993-06-22 Reduced VLF overload susceptibility active noise cancellation headset

Publications (1)

Publication Number Publication Date
ES2134353T3 true ES2134353T3 (es) 1999-10-01

Family

ID=22164050

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94921355T Expired - Lifetime ES2134353T3 (es) 1993-06-22 1994-06-22 Casco para anulacion de ruido activo con reducida susceptibilidad de sobrecarga de vlf.

Country Status (6)

Country Link
US (1) US5452361A (es)
EP (1) EP0705471B1 (es)
AU (1) AU7211794A (es)
DE (1) DE69420140T2 (es)
ES (1) ES2134353T3 (es)
WO (1) WO1995000947A1 (es)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5732143A (en) 1992-10-29 1998-03-24 Andrea Electronics Corp. Noise cancellation apparatus
US5625684A (en) * 1993-02-04 1997-04-29 Local Silence, Inc. Active noise suppression system for telephone handsets and method
DE19513111A1 (de) * 1995-04-07 1996-10-10 Sennheiser Electronic Einrichtung zur Verminderung von Störschall
US5835608A (en) * 1995-07-10 1998-11-10 Applied Acoustic Research Signal separating system
US5675658A (en) * 1995-07-27 1997-10-07 Brittain; Thomas Paige Active noise reduction headset
FR2739214B1 (fr) * 1995-09-27 1997-12-19 Technofirst Procede et dispositif d'attenuation active hybride de vibrations, notamment de vibrations mecaniques, sonores ou analogues
US6112103A (en) * 1996-12-03 2000-08-29 Puthuff; Steven H. Personal communication device
US6445799B1 (en) 1997-04-03 2002-09-03 Gn Resound North America Corporation Noise cancellation earpiece
US6181801B1 (en) * 1997-04-03 2001-01-30 Resound Corporation Wired open ear canal earpiece
US6278786B1 (en) 1997-07-29 2001-08-21 Telex Communications, Inc. Active noise cancellation aircraft headset system
US6363345B1 (en) 1999-02-18 2002-03-26 Andrea Electronics Corporation System, method and apparatus for cancelling noise
WO2001006916A1 (en) * 1999-07-26 2001-02-01 Saunders William R Active noise reduction for audiometry
US6480610B1 (en) 1999-09-21 2002-11-12 Sonic Innovations, Inc. Subband acoustic feedback cancellation in hearing aids
US6594367B1 (en) 1999-10-25 2003-07-15 Andrea Electronics Corporation Super directional beamforming design and implementation
US6757395B1 (en) 2000-01-12 2004-06-29 Sonic Innovations, Inc. Noise reduction apparatus and method
WO2001096984A2 (en) * 2000-06-14 2001-12-20 Sleep Solutions, Inc. Secure test and test result delivery system
DK1251714T4 (en) * 2001-04-12 2015-07-20 Sound Design Technologies Ltd Digital hearing aid system
US6717537B1 (en) 2001-06-26 2004-04-06 Sonic Innovations, Inc. Method and apparatus for minimizing latency in digital signal processing systems
DE10228157B3 (de) * 2002-06-24 2004-01-08 Siemens Audiologische Technik Gmbh Hörgerätesystem mit einem Hörgerät und einer externen Prozessoreinheit
US20060153394A1 (en) * 2005-01-10 2006-07-13 Nigel Beasley Headset audio bypass apparatus and method
CN1897054A (zh) * 2005-07-14 2007-01-17 松下电器产业株式会社 可根据声音种类发出警报的传输装置及方法
US20070041589A1 (en) * 2005-08-17 2007-02-22 Gennum Corporation System and method for providing environmental specific noise reduction algorithms
JP4997962B2 (ja) * 2006-12-27 2012-08-15 ソニー株式会社 音声出力装置、音声出力方法、音声出力処理用プログラムおよび音声出力システム
US20090136052A1 (en) * 2007-11-27 2009-05-28 David Clark Company Incorporated Active Noise Cancellation Using a Predictive Approach
US8165313B2 (en) * 2009-04-28 2012-04-24 Bose Corporation ANR settings triple-buffering
US8073150B2 (en) * 2009-04-28 2011-12-06 Bose Corporation Dynamically configurable ANR signal processing topology
US8184822B2 (en) * 2009-04-28 2012-05-22 Bose Corporation ANR signal processing topology
US8090114B2 (en) * 2009-04-28 2012-01-03 Bose Corporation Convertible filter
US8073151B2 (en) * 2009-04-28 2011-12-06 Bose Corporation Dynamically configurable ANR filter block topology
JP2012133205A (ja) * 2010-12-22 2012-07-12 Sony Corp ノイズ低減装置および方法、並びにプログラム
US11019423B2 (en) * 2019-04-12 2021-05-25 Gear Radio Electronics Corp. Active noise cancellation (ANC) headphone and ANC method thereof

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4473906A (en) * 1980-12-05 1984-09-25 Lord Corporation Active acoustic attenuator
ZA825676B (en) * 1981-08-11 1983-06-29 Sound Attenuators Ltd Method and apparatus for low frequency active attennuation
GB8717043D0 (en) * 1987-07-20 1987-08-26 Plessey Co Plc Noise reduction systems
US4837834A (en) * 1988-05-04 1989-06-06 Nelson Industries, Inc. Active acoustic attenuation system with differential filtering
US4985925A (en) * 1988-06-24 1991-01-15 Sensor Electronics, Inc. Active noise reduction system
JP2822224B2 (ja) * 1989-09-01 1998-11-11 ソニー株式会社 騒音低減ヘッドホン
JP2562708B2 (ja) * 1990-03-23 1996-12-11 長野日本無線株式会社 ノイズキャンセル方法及び装置
US5381473A (en) * 1992-10-29 1995-01-10 Andrea Electronics Corporation Noise cancellation apparatus

Also Published As

Publication number Publication date
AU7211794A (en) 1995-01-17
US5452361A (en) 1995-09-19
EP0705471A1 (en) 1996-04-10
DE69420140D1 (de) 1999-09-23
DE69420140T2 (de) 2000-02-03
WO1995000947A1 (en) 1995-01-05
EP0705471B1 (en) 1999-08-18

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