DE3769817D1 - Verfahren und geraete zum vermindern der zum trommelfell gelangenden aussengeraeusche und zum verbessern der verstaendlichkeit elektroakustischer nachrichten. - Google Patents

Verfahren und geraete zum vermindern der zum trommelfell gelangenden aussengeraeusche und zum verbessern der verstaendlichkeit elektroakustischer nachrichten.

Info

Publication number
DE3769817D1
DE3769817D1 DE8787430008T DE3769817T DE3769817D1 DE 3769817 D1 DE3769817 D1 DE 3769817D1 DE 8787430008 T DE8787430008 T DE 8787430008T DE 3769817 T DE3769817 T DE 3769817T DE 3769817 D1 DE3769817 D1 DE 3769817D1
Authority
DE
Germany
Prior art keywords
pct
date sep
electroacoustic
messages
loudspeaker
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 - Fee Related
Application number
DE8787430008T
Other languages
English (en)
Inventor
Christian Carme
Alain Roure
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.)
Centre National de la Recherche Scientifique CNRS
Original Assignee
Centre National de la Recherche Scientifique CNRS
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9332965&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3769817(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Centre National de la Recherche Scientifique CNRS filed Critical Centre National de la Recherche Scientifique CNRS
Application granted granted Critical
Publication of DE3769817D1 publication Critical patent/DE3769817D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G10K11/17861—Methods, e.g. algorithms; Devices using additional means for damping sound, e.g. using sound absorbing panels
    • 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
    • G10K11/17813—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 acoustic paths, e.g. estimating, calibrating or testing of transfer functions or cross-terms
    • G10K11/17817—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 acoustic paths, e.g. estimating, calibrating or testing of transfer functions or cross-terms between the output signals and the error signals, i.e. secondary path
    • 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
    • G10K11/17857—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
    • G10K11/1787—General system configurations
    • G10K11/17875—General system configurations using an error signal without a reference signal, e.g. pure feedback
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F11/00—Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
    • A61F11/06—Protective devices for the ears
    • A61F11/14—Protective devices for the ears external, e.g. earcaps or earmuffs
    • A61F11/145—Protective devices for the ears external, e.g. earcaps or earmuffs electric, e.g. for active noise reduction
    • 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
    • G10K2210/3011—Single acoustic input
    • 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
    • G10K2210/301—Computational
    • G10K2210/3023—Estimation of noise, e.g. on error signals
    • G10K2210/30232—Transfer functions, e.g. impulse response
    • 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
    • G10K2210/3041—Offline
    • 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
    • G10K2210/3049—Random noise used, e.g. in model identification
    • 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
    • G10K2210/50—Miscellaneous
    • G10K2210/504—Calibration

Landscapes

  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Otolaryngology (AREA)
  • Public Health (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Psychology (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Telephone Set Structure (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Dc Digital Transmission (AREA)
DE8787430008T 1986-03-07 1987-03-06 Verfahren und geraete zum vermindern der zum trommelfell gelangenden aussengeraeusche und zum verbessern der verstaendlichkeit elektroakustischer nachrichten. Expired - Fee Related DE3769817D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8603394A FR2595498B1 (fr) 1986-03-07 1986-03-07 Procedes et dispositifs pour attenuer les bruits d'origine externe parvenant au tympan et ameliorer l'intelligibilite des communications electro-acoustiques

Publications (1)

Publication Number Publication Date
DE3769817D1 true DE3769817D1 (de) 1991-06-13

Family

ID=9332965

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787430008T Expired - Fee Related DE3769817D1 (de) 1986-03-07 1987-03-06 Verfahren und geraete zum vermindern der zum trommelfell gelangenden aussengeraeusche und zum verbessern der verstaendlichkeit elektroakustischer nachrichten.

Country Status (11)

Country Link
US (1) US4833719A (de)
EP (1) EP0237454B1 (de)
JP (1) JP2610632B2 (de)
AT (1) ATE63396T1 (de)
BR (1) BR8706096A (de)
CA (1) CA1265063A (de)
DE (1) DE3769817D1 (de)
ES (1) ES2022437B3 (de)
FR (1) FR2595498B1 (de)
GR (1) GR3002338T3 (de)
WO (1) WO1987005430A1 (de)

Families Citing this family (94)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0333411A3 (de) * 1988-03-16 1991-07-31 University Of Essex Kopfhöreranordnung
FR2632474B1 (fr) * 1988-06-01 1991-04-26 Saint Louis Inst Dispositif d'attenuation active de vibrations et notamment de bruit sans retard acoustique
FR2632473B1 (fr) * 1988-06-01 1990-09-07 Saint Louis Inst Dispositifs d'attenuation active de vibrations, notamment de bruit, disposes en serie
US4985925A (en) * 1988-06-24 1991-01-15 Sensor Electronics, Inc. Active noise reduction system
JP2748446B2 (ja) * 1988-10-28 1998-05-06 ソニー株式会社 ヘッドホン装置
JP2764953B2 (ja) * 1988-10-28 1998-06-11 ソニー株式会社 ヘッドホン装置
US5125032A (en) * 1988-12-02 1992-06-23 Erwin Meister Talk/listen headset
US5091954A (en) * 1989-03-01 1992-02-25 Sony Corporation Noise reducing receiver device
US5134659A (en) * 1990-07-10 1992-07-28 Mnc, Inc. Method and apparatus for performing noise cancelling and headphoning
US5001763A (en) * 1989-08-10 1991-03-19 Mnc Inc. Electroacoustic device for hearing needs including noise cancellation
US5117461A (en) * 1989-08-10 1992-05-26 Mnc, Inc. Electroacoustic device for hearing needs including noise cancellation
DE8910815U1 (de) * 1989-09-11 1989-11-23 Kind, Werner, 3006 Burgwedel Gehörschutzvorrichtung
US5276740A (en) * 1990-01-19 1994-01-04 Sony Corporation Earphone device
US5412735A (en) * 1992-02-27 1995-05-02 Central Institute For The Deaf Adaptive noise reduction circuit for a sound reproduction system
US5844984A (en) * 1992-03-19 1998-12-01 Pan Communications, Inc. Two-way communications earset with filter
JPH0817415B2 (ja) * 1992-03-19 1996-02-21 勝夫 許斐 イヤーセット型送受話器
GB2265790A (en) * 1992-04-02 1993-10-06 Polural Limited Earphone apparatus with active noise reduction
US5343523A (en) * 1992-08-03 1994-08-30 At&T Bell Laboratories Telephone headset structure for reducing ambient noise
US5426719A (en) * 1992-08-31 1995-06-20 The United States Of America As Represented By The Department Of Health And Human Services Ear based hearing protector/communication system
US5673325A (en) * 1992-10-29 1997-09-30 Andrea Electronics Corporation Noise cancellation apparatus
US5715321A (en) * 1992-10-29 1998-02-03 Andrea Electronics Coporation Noise cancellation headset for use with stand or worn on ear
US5732143A (en) * 1992-10-29 1998-03-24 Andrea Electronics Corp. Noise cancellation apparatus
US5862234A (en) * 1992-11-11 1999-01-19 Todter; Chris Active noise cancellation system
US5909498A (en) * 1993-03-25 1999-06-01 Smith; Jerry R. Transducer device for use with communication apparatus
WO1994030029A1 (en) * 1993-06-03 1994-12-22 Noise Cancellation Technologies, Inc. Hybrid noise cancellation system for headsets
EP0655157A1 (de) * 1993-06-11 1995-05-31 Caterpillar Inc. Fahrzeugvermittlungsplatz mit dreidimensionaler aktiver schallunterdrueckung
DE69434918T2 (de) * 1993-06-23 2007-11-08 Noise Cancellation Technologies, Inc., Stamford Aktive Lärmunterdruckungsanordnung mit variabler Verstärkung und verbesserter Restlärmmessung
US7103188B1 (en) 1993-06-23 2006-09-05 Owen Jones Variable gain active noise cancelling system with improved residual noise sensing
US5524058A (en) * 1994-01-12 1996-06-04 Mnc, Inc. Apparatus for performing noise cancellation in telephonic devices and headwear
FR2724729B1 (fr) 1994-09-20 1997-01-31 Technofirst Dispositif de detection et de localisation de fuites de fluide
US5744700A (en) * 1994-09-20 1998-04-28 Technofirst Device for detecting and locating fluid leaks
US5848169A (en) * 1994-10-06 1998-12-08 Duke University Feedback acoustic energy dissipating device with compensator
US5740258A (en) * 1995-06-05 1998-04-14 Mcnc Active noise supressors and methods for use in the ear canal
GB2305063A (en) * 1995-09-07 1997-03-26 Noise Cancellation Tech Headset with means to limit cushion compression
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
US7072476B2 (en) * 1997-02-18 2006-07-04 Matech, Inc. Audio headset
FR2761260B1 (fr) * 1997-03-26 1999-07-30 Api Protection Dispositif et procede de protection auditive
US6175633B1 (en) 1997-04-09 2001-01-16 Cavcom, Inc. Radio communications apparatus with attenuating ear pieces for high noise environments
CN1190993C (zh) 1997-04-17 2005-02-23 伯斯有限公司 降低有源噪声的头戴送受话器及其中使用的模块
US6078672A (en) * 1997-05-06 2000-06-20 Virginia Tech Intellectual Properties, Inc. Adaptive personal active noise system
US6272360B1 (en) 1997-07-03 2001-08-07 Pan Communications, Inc. Remotely installed transmitter and a hands-free two-way voice terminal device using same
US6420975B1 (en) 1999-08-25 2002-07-16 Donnelly Corporation Interior rearview mirror sound processing system
US6363345B1 (en) 1999-02-18 2002-03-26 Andrea Electronics Corporation System, method and apparatus for cancelling noise
US6704428B1 (en) * 1999-03-05 2004-03-09 Michael Wurtz Automatic turn-on and turn-off control for battery-powered headsets
US6594367B1 (en) 1999-10-25 2003-07-15 Andrea Electronics Corporation Super directional beamforming design and implementation
GB2360900B (en) * 2000-03-30 2004-01-28 Roke Manor Research Apparatus and method for reducing noise
US6687118B1 (en) * 2000-11-03 2004-02-03 Cardiac Pacemakers, Inc. Flat capacitor having staked foils and edge-connected connection members
US6509588B1 (en) 2000-11-03 2003-01-21 Cardiac Pacemakers, Inc. Method for interconnecting anodes and cathodes in a flat capacitor
US6699265B1 (en) * 2000-11-03 2004-03-02 Cardiac Pacemakers, Inc. Flat capacitor for an implantable medical device
US6684102B1 (en) * 2000-11-03 2004-01-27 Cardiac Pacemakers, Inc. Implantable heart monitors having capacitors with endcap headers
US6522525B1 (en) * 2000-11-03 2003-02-18 Cardiac Pacemakers, Inc. Implantable heart monitors having flat capacitors with curved profiles
US6833987B1 (en) 2000-11-03 2004-12-21 Cardiac Pacemakers, Inc. Flat capacitor having an active case
US6826287B2 (en) * 2001-04-09 2004-11-30 Cabot Safety Intermediate Corporation Earmuff with controlled leak
US6937738B2 (en) * 2001-04-12 2005-08-30 Gennum Corporation 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
US7215766B2 (en) 2002-07-22 2007-05-08 Lightspeed Aviation, Inc. Headset with auxiliary input jack(s) for cell phone and/or other devices
GB2394166B (en) * 2002-10-14 2006-01-18 Thales Plc Cushions
US7951479B2 (en) 2005-05-11 2011-05-31 Cardiac Pacemakers, Inc. Method and apparatus for porous insulative film for insulating energy source layers
US7479349B2 (en) * 2002-12-31 2009-01-20 Cardiac Pacemakers, Inc. Batteries including a flat plate design
US7024010B2 (en) * 2003-05-19 2006-04-04 Adaptive Technologies, Inc. Electronic earplug for monitoring and reducing wideband noise at the tympanic membrane
US7826805B2 (en) * 2003-11-11 2010-11-02 Matech, Inc. Automatic-switching wireless communication device
EP1683328A4 (de) * 2003-11-11 2008-01-23 Matech Inc Bidirektionale kommunikationseinrichtung mit einem einzigen wandler
SE526944C2 (sv) * 2003-11-27 2005-11-22 Peltor Ab Hörselskydd
US20050238181A1 (en) * 2003-11-27 2005-10-27 Sigvard Nilsson Hearing protector
US7367422B2 (en) * 2004-05-21 2008-05-06 Brookstone Purchasing. Inc. System and method for providing passive noise reduction
US7224575B2 (en) 2004-07-16 2007-05-29 Cardiac Pacemakers, Inc. Method and apparatus for high voltage aluminum capacitor design
US8315379B2 (en) * 2004-11-10 2012-11-20 Matech, Inc. Single transducer full duplex talking circuit
KR100788678B1 (ko) * 2006-01-14 2007-12-26 삼성전자주식회사 이어폰 기기의 소음 저감 장치 및 방법
SE528519C2 (sv) * 2005-04-29 2006-12-05 Peltor Ab Hörselkåpa
SE528515C2 (sv) * 2005-04-29 2006-12-05 Peltor Ab Hörselkåpa med mikrofonanordning
SE528514C2 (sv) * 2005-04-29 2006-12-05 Peltor Ab Hörselkåpa
GB2434708B (en) * 2006-01-26 2008-02-27 Sonaptic Ltd Ambient noise reduction arrangements
SE530023C2 (sv) * 2006-06-20 2008-02-12 Peltor Ab Hörselkåpa
US8027481B2 (en) * 2006-11-06 2011-09-27 Terry Beard Personal hearing control system and method
JP5564743B2 (ja) * 2006-11-13 2014-08-06 ソニー株式会社 ノイズキャンセル用のフィルタ回路、ノイズ低減信号生成方法、およびノイズキャンセリングシステム
WO2008064230A2 (en) * 2006-11-20 2008-05-29 Personics Holdings Inc. Methods and devices for hearing damage notification and intervention ii
TWI310177B (en) * 2006-12-29 2009-05-21 Ind Tech Res Inst Noise canceling device and method thereof
GB2445984B (en) * 2007-01-25 2011-12-07 Sonaptic Ltd Ambient noise reduction
US20090136052A1 (en) * 2007-11-27 2009-05-28 David Clark Company Incorporated Active Noise Cancellation Using a Predictive Approach
US8189804B2 (en) * 2007-12-19 2012-05-29 Sonion Nederland B.V. Sound provider adapter to cancel out noise
SE532379C2 (sv) * 2008-03-26 2009-12-29 3M Svenska Ab Hörselskydd innefattande behandlingsanordningar för behandling av repeterbart och icke-repeterbart buller
SE531656E5 (sv) * 2008-05-12 2011-04-26 3M Svenska Ab Hörselskydd
CN101620005A (zh) * 2008-06-30 2010-01-06 鸿富锦精密工业（深圳）有限公司 主机板声音测试系统及其方法
US20100119076A1 (en) * 2008-11-12 2010-05-13 The Timao Group, Inc. Hearing Protection Device Ear Seal With Acoustic Barrier
DE102009005302B4 (de) 2009-01-16 2022-01-05 Sennheiser Electronic Gmbh & Co. Kg Schutzhelm und Vorrichtung zur aktiven Störschallunterdrückung
FR2949273B1 (fr) 2009-08-21 2015-09-25 Christian Carme Barriere acoustique ajouree permettant un traitement hybride passif/actif du bruit
TW201249101A (en) * 2011-05-20 2012-12-01 Sunplus Technology Co Ltd Active and configurable filter device
CN102811033A (zh) * 2011-06-02 2012-12-05 凌阳科技股份有限公司 有源且可调整以适合多种规格的滤波装置
EP2551846B1 (de) * 2011-07-26 2022-01-19 AKG Acoustics GmbH Rauschmindernde Tonwiedergabe
EP2552128A1 (de) 2011-07-29 2013-01-30 Sonion Nederland B.V. Doppelkapsel-Richtmikrofon
WO2014099912A1 (en) * 2012-12-17 2014-06-26 Panamax35 LLC Destructive interference microphone
US9837066B2 (en) 2013-07-28 2017-12-05 Light Speed Aviation, Inc. System and method for adaptive active noise reduction
US10244306B1 (en) * 2018-05-24 2019-03-26 Bose Corporation Real-time detection of feedback instability
GB2577297B8 (en) 2018-09-20 2023-08-02 Deborah Carol Turner Fernback Ear-and-eye mask with noise attenuation and generation

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2925134A1 (de) * 1979-06-22 1981-01-08 Sennheiser Electronic Gehoerschutzvorrichtung
US4494074A (en) * 1982-04-28 1985-01-15 Bose Corporation Feedback control
GB8412195D0 (en) * 1984-05-12 1984-06-20 Plessey Co Plc Sound reproduction systems
JPS621156A (ja) * 1985-06-26 1987-01-07 Hitachi Plant Eng & Constr Co Ltd 電子消音システム
JPS629397A (ja) * 1985-07-08 1987-01-17 大坪　正志 低周波騒音の低減方法とその装置

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Publication number Publication date
FR2595498A1 (fr) 1987-09-11
BR8706096A (pt) 1988-02-09
ATE63396T1 (de) 1991-05-15
WO1987005430A1 (fr) 1987-09-11
EP0237454A1 (de) 1987-09-16
JPS63503186A (ja) 1988-11-17
CA1265063A (fr) 1990-01-30
ES2022437B3 (es) 1991-12-01
JP2610632B2 (ja) 1997-05-14
US4833719A (en) 1989-05-23
GR3002338T3 (en) 1992-12-30
FR2595498B1 (fr) 1989-06-02
EP0237454B1 (de) 1991-05-08

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