SE0303189D0 - Hörselskydd - Google Patents

Hörselskydd

Info

Publication number
SE0303189D0
SE0303189D0 SE0303189A SE0303189A SE0303189D0 SE 0303189 D0 SE0303189 D0 SE 0303189D0 SE 0303189 A SE0303189 A SE 0303189A SE 0303189 A SE0303189 A SE 0303189A SE 0303189 D0 SE0303189 D0 SE 0303189D0
Authority
SE
Sweden
Prior art keywords
hood
loudspeaker
hearing
amplifier
microphone
Prior art date
Application number
SE0303189A
Other languages
English (en)
Other versions
SE0303189L (sv
SE526944C2 (sv
Inventor
Henrik Nordin
Sigvard Nilsson
Original Assignee
Peltor Ab
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 Peltor Ab filed Critical Peltor Ab
Priority to SE0303189A priority Critical patent/SE526944C2/sv
Publication of SE0303189D0 publication Critical patent/SE0303189D0/sv
Priority to RU2006122809/14A priority patent/RU2363433C2/ru
Priority to CA002546859A priority patent/CA2546859A1/en
Priority to AT04800370T priority patent/ATE425726T1/de
Priority to DE602004020096T priority patent/DE602004020096D1/de
Priority to AU2004292926A priority patent/AU2004292926C1/en
Priority to US10/580,923 priority patent/US8243943B2/en
Priority to CN2004800349572A priority patent/CN1897897B/zh
Priority to EP04800370A priority patent/EP1689337B1/en
Priority to PCT/SE2004/001709 priority patent/WO2005051255A1/en
Priority to BRPI0416932A priority patent/BRPI0416932B1/pt
Priority to US10/999,367 priority patent/US20050238181A1/en
Publication of SE0303189L publication Critical patent/SE0303189L/sv
Publication of SE526944C2 publication Critical patent/SE526944C2/sv
Priority to NO20062322A priority patent/NO20062322L/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1083—Reduction of ambient noise
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1008—Earpieces of the supra-aural or circum-aural type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1025—Accumulators or arrangements for charging
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/033—Headphones for stereophonic communication

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Otolaryngology (AREA)
  • Psychology (AREA)
  • Biomedical Technology (AREA)
  • Signal Processing (AREA)
  • Vascular Medicine (AREA)
  • Biophysics (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Headphones And Earphones (AREA)
  • Semiconductor Lasers (AREA)
  • Gyroscopes (AREA)
  • Circuit For Audible Band Transducer (AREA)
SE0303189A 2003-11-27 2003-11-27 Hörselskydd SE526944C2 (sv)

Priority Applications (13)

Application Number Priority Date Filing Date Title
SE0303189A SE526944C2 (sv) 2003-11-27 2003-11-27 Hörselskydd
BRPI0416932A BRPI0416932B1 (pt) 2003-11-27 2004-11-23 protetor de audição
US10/580,923 US8243943B2 (en) 2003-11-27 2004-11-23 Hearing protector with removable microphone, amplifier, and loudspeaker unit
EP04800370A EP1689337B1 (en) 2003-11-27 2004-11-23 Hearing protector
AT04800370T ATE425726T1 (de) 2003-11-27 2004-11-23 Gehírschutz
DE602004020096T DE602004020096D1 (de) 2003-11-27 2004-11-23 Gehörschutz
AU2004292926A AU2004292926C1 (en) 2003-11-27 2004-11-23 Hearing protector
RU2006122809/14A RU2363433C2 (ru) 2003-11-27 2004-11-23 Защитные наушники
CN2004800349572A CN1897897B (zh) 2003-11-27 2004-11-23 听力保护器
CA002546859A CA2546859A1 (en) 2003-11-27 2004-11-23 Hearing protector
PCT/SE2004/001709 WO2005051255A1 (en) 2003-11-27 2004-11-23 Hearing protector
US10/999,367 US20050238181A1 (en) 2003-11-27 2004-11-29 Hearing protector
NO20062322A NO20062322L (no) 2003-11-27 2006-05-22 Horselsvern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0303189A SE526944C2 (sv) 2003-11-27 2003-11-27 Hörselskydd

Publications (3)

Publication Number Publication Date
SE0303189D0 true SE0303189D0 (sv) 2003-11-27
SE0303189L SE0303189L (sv) 2005-05-28
SE526944C2 SE526944C2 (sv) 2005-11-22

Family

ID=29729198

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0303189A SE526944C2 (sv) 2003-11-27 2003-11-27 Hörselskydd

Country Status (12)

Country Link
US (1) US8243943B2 (sv)
EP (1) EP1689337B1 (sv)
CN (1) CN1897897B (sv)
AT (1) ATE425726T1 (sv)
AU (1) AU2004292926C1 (sv)
BR (1) BRPI0416932B1 (sv)
CA (1) CA2546859A1 (sv)
DE (1) DE602004020096D1 (sv)
NO (1) NO20062322L (sv)
RU (1) RU2363433C2 (sv)
SE (1) SE526944C2 (sv)
WO (1) WO2005051255A1 (sv)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050238181A1 (en) * 2003-11-27 2005-10-27 Sigvard Nilsson Hearing protector
SE526944C2 (sv) 2003-11-27 2005-11-22 Peltor Ab Hörselskydd
SE528519C2 (sv) * 2005-04-29 2006-12-05 Peltor Ab Hörselkåpa
SE528514C2 (sv) 2005-04-29 2006-12-05 Peltor Ab Hörselkåpa
SE528515C2 (sv) * 2005-04-29 2006-12-05 Peltor Ab Hörselkåpa med mikrofonanordning
SE530023C2 (sv) * 2006-06-20 2008-02-12 Peltor Ab Hörselkåpa
SE0700371L (sv) * 2007-02-14 2007-10-23 Msa Sordin Ab System för bildande av hörselskydd samt hörselkåpa och hörselskydd ingående i systemet
SE532379C2 (sv) 2008-03-26 2009-12-29 3M Svenska Ab Hörselskydd innefattande behandlingsanordningar för behandling av repeterbart och icke-repeterbart buller
WO2009131518A1 (en) * 2008-04-24 2009-10-29 Sperian Hearing Protection, Llc Ear cup
SE531656E5 (sv) * 2008-05-12 2011-04-26 3M Svenska Ab Hörselskydd
JP5502086B2 (ja) 2008-08-25 2014-05-28 ラウド・アンド・クリア・セイフティ・ピーティーワイ・リミテッド 保護装置
EP2391321B1 (en) * 2009-01-30 2017-03-15 Sonova AG System and method for providing active hearing protection to a user
US8379872B2 (en) 2009-06-01 2013-02-19 Red Tail Hawk Corporation Talk-through listening device channel switching
US9762199B2 (en) 2014-03-31 2017-09-12 Bitwave Pte Ltd. Facilitation of headphone audio enhancement
USD746000S1 (en) 2014-05-30 2015-12-22 3M Innovative Properties Company Helmet bracket having arrow indicia
USD747561S1 (en) 2014-05-30 2016-01-12 3M Innovative Properties Company Helmet bracket connector end
US9596902B2 (en) 2014-05-30 2017-03-21 3M Innovative Properties Company Earmuff accommodating welding shield
USD747560S1 (en) 2014-05-30 2016-01-12 3M Innovative Properties Company Helmet bracket
JP2017525862A (ja) 2014-08-18 2017-09-07 スリーエム イノベイティブ プロパティズ カンパニー ポリマーネットを含むレスピレータ及びポリマーネットを含むレスピレータを形成する方法
US20170374455A1 (en) * 2015-01-20 2017-12-28 3M Innovative Properties Company Mountable sound capture and reproduction device for determining acoustic signal origin
SE538540C2 (sv) * 2015-05-15 2016-09-13 Zound Ind Int Ab An ear support audio listening arrangement
US9900735B2 (en) 2015-12-18 2018-02-20 Federal Signal Corporation Communication systems
EP3228290A1 (en) 2016-04-08 2017-10-11 3M Innovative Properties Company Hearing protector and a method of making a hearing protector
WO2018002883A1 (en) * 2016-06-29 2018-01-04 3M Innovative Properties Company A method of retrofitting a hearing protector, and a hearing protector
USD830332S1 (en) * 2016-07-08 2018-10-09 Meters Music Ltd. Meter headphone
US9866944B1 (en) 2016-08-23 2018-01-09 Hyman Wright External sound headphones
US10277316B1 (en) 2017-05-01 2019-04-30 The United States Of America As Represented By The Secretary Of The Air Force Free space optical headset
US10341760B2 (en) 2017-05-22 2019-07-02 Ip Holdings, Inc. Electronic ear protection devices
USD857649S1 (en) * 2017-06-22 2019-08-27 Honeywell International Inc. Battery compartment locking mechanism
EP3628283A1 (en) * 2018-09-25 2020-04-01 GN Hearing A/S Hearing protection device with passive ear protectors
GB201909678D0 (en) 2019-07-05 2019-08-21 Jsp Ltd Hearing protection headset
US11388507B2 (en) * 2019-07-26 2022-07-12 Invictumtech Inc. Method and system for operating wearable sound system
CA3154037A1 (en) * 2019-10-10 2021-04-15 Scott MALKOFF Ear covers
USD968365S1 (en) 2019-10-18 2022-11-01 Jsp Limited Ear defender
WO2021250518A1 (en) * 2020-06-09 2021-12-16 3M Innovative Properties Company Hearing protection device
USD1021855S1 (en) * 2021-12-09 2024-04-09 Tao Peng Headphone
USD1016036S1 (en) * 2021-12-20 2024-02-27 Tao Peng Headphone

Family Cites Families (77)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2235372A (en) 1938-02-22 1941-03-18 Siemens App Und Maschinen Gmbh Receiver headband
DE1204272B (de) 1960-02-24 1965-11-04 Louis Ernest Bonnin Sprachgarnitur
US3306991A (en) * 1963-06-04 1967-02-28 Homer J Wood Protective hearing aid
US3394226A (en) * 1963-08-19 1968-07-23 Daniel E. Andrews Jr. Special purpose hearing aid
GB1160431A (en) * 1966-05-04 1969-08-06 Mini Of Technology London Ear Defenders.
US3456263A (en) 1967-05-09 1969-07-22 Gentex Corp Rigid shell helmet with ear cup
GB1289993A (sv) 1969-08-07 1972-09-20
US3579640A (en) 1970-02-11 1971-05-25 American Optical Corp Hearing protector headsets
US3890474A (en) * 1972-05-17 1975-06-17 Raymond C Glicksberg Sound amplitude limiters
AT341009B (de) 1972-06-22 1978-01-10 Int Standard Electric Corp Hor-sprech-garnitur
US3833939A (en) 1972-11-03 1974-09-10 American Optical Corp Hearing protector headset
US3952158A (en) * 1974-08-26 1976-04-20 Kyle Gordon L Ear protection and hearing device
US4027113A (en) 1974-09-12 1977-05-31 Nippon Gakki Seizo Kabushiki Kaisha Headphone
US4023209A (en) 1975-12-17 1977-05-17 Gentex Corporation Protective helmet assembly with segmental outer shell
US4066849A (en) 1976-06-11 1978-01-03 Koss Corporation Rotary-type control for headphone earpiece
US4064362A (en) * 1976-09-13 1977-12-20 David Richard Williams Hearing protector
US4327257A (en) 1979-09-10 1982-04-27 Schwartz Leslie H Alignment device for electro-acoustical transducers
US4302635A (en) 1980-01-04 1981-11-24 Koss Corporation Headphone construction
JPS5711882U (sv) 1980-06-20 1982-01-21
US4677678A (en) 1984-07-10 1987-06-30 The United States Of America As Represented By The Department Of Health And Human Services Active hearing protectors
US4867149A (en) 1985-03-29 1989-09-19 Cabot Corporation Earplugs
US4928311A (en) * 1986-01-03 1990-05-22 Trompler Lyle D Noise limiting circuit for earmuffs
EP0258224A1 (en) 1986-01-03 1988-03-09 TROMPLER, Lyle D. Noise limiting circuit for earmuffs
FR2595498B1 (fr) 1986-03-07 1989-06-02 Centre Nat Rech Scient Procedes et dispositifs pour attenuer les bruits d'origine externe parvenant au tympan et ameliorer l'intelligibilite des communications electro-acoustiques
US5181252A (en) 1987-12-28 1993-01-19 Bose Corporation High compliance headphone driving
CN2042264U (zh) * 1988-06-04 1989-08-02 航天医学工程研究所 防噪声通话耳罩
US4985925A (en) 1988-06-24 1991-01-15 Sensor Electronics, Inc. Active noise reduction system
US5125032A (en) * 1988-12-02 1992-06-23 Erwin Meister Talk/listen headset
US4965836A (en) 1989-01-19 1990-10-23 Koss Corporation Stereo headphone
DK576889D0 (da) 1989-11-17 1989-11-17 Per Rubak Hoerevaern
CA2045241C (en) 1990-07-13 1997-03-25 Lawrence H. Zuckerman Combination head-protective helmet with local and remote voice triggered communication system
US5251263A (en) 1992-05-22 1993-10-05 Andrea Electronics Corporation Adaptive noise cancellation and speech enhancement system and apparatus therefor
US5631965A (en) * 1992-06-19 1997-05-20 Chang; Joseph S. Hearing protector
JP3097340B2 (ja) 1992-08-19 2000-10-10 ソニー株式会社 ヘッドホン装置
FR2695302B1 (fr) 1992-09-08 1994-11-18 Bolle G R M Ets Casque anti-bruit à force d'application réglable.
JP3154214B2 (ja) 1992-09-25 2001-04-09 ソニー株式会社 ヘッドホン
AU7355594A (en) 1993-06-23 1995-01-17 Noise Cancellation Technologies, Inc. Variable gain active noise cancellation system with improved residual noise sensing
US5357585A (en) 1993-07-09 1994-10-18 Khyber Technologies Corporation Headphone assembly
CA2245788A1 (en) 1996-02-08 1997-08-14 Hal Greenberger Noise-reducing stethoscope
CN2193153Y (zh) * 1994-03-25 1995-03-29 清华大学 复合式新型有源消声耳罩
US5550923A (en) 1994-09-02 1996-08-27 Minnesota Mining And Manufacturing Company Directional ear device with adaptive bandwidth and gain control
US5675658A (en) * 1995-07-27 1997-10-07 Brittain; Thomas Paige Active noise reduction headset
GB2305063A (en) 1995-09-07 1997-03-26 Noise Cancellation Tech Headset with means to limit cushion compression
SE511947C2 (sv) * 1997-08-15 1999-12-20 Peltor Ab Hörselskydd med regleringsknappar nedsänkta i ena hörselkåpan
US7664282B2 (en) 1998-11-25 2010-02-16 Insound Medical, Inc. Sealing retainer for extended wear hearing devices
US6704428B1 (en) * 1999-03-05 2004-03-09 Michael Wurtz Automatic turn-on and turn-off control for battery-powered headsets
JP4103267B2 (ja) 1999-10-12 2008-06-18 ソニー株式会社 ヘッドホン
US20020001391A1 (en) 2000-03-16 2002-01-03 Resistance Technology, Inc. Acoustic switch with electronic switching capability
US20020003889A1 (en) 2000-04-19 2002-01-10 Fischer Addison M. Headphone device with improved controls and/or removable memory
US20010046304A1 (en) * 2000-04-24 2001-11-29 Rast Rodger H. System and method for selective control of acoustic isolation in headsets
US6631279B2 (en) 2000-05-05 2003-10-07 Adrian Rivera Pneumatic cell phone speaker assembly
KR100347349B1 (ko) * 2000-05-23 2002-12-26 삼성전자 주식회사 마이크로파워 저항-캐패시터 발진기
NO312570B1 (no) 2000-09-01 2002-05-27 Sintef Stöybeskyttelse med verifiseringsanordning
US6801629B2 (en) * 2000-12-22 2004-10-05 Sonic Innovations, Inc. Protective hearing devices with multi-band automatic amplitude control and active noise attenuation
DE10117704C2 (de) 2001-04-09 2002-08-01 Hoergeraete Kind Gmbh U Co Kg Kapselgehörschützer mit aktiver Schalldruckkompensation
US6970571B2 (en) * 2002-02-02 2005-11-29 Jackson Products, Inc. Low cost hearing protection device
US7761932B2 (en) 2002-04-08 2010-07-27 Polar Fusion Llc Ear protection device
US6724906B2 (en) 2002-05-07 2004-04-20 Alex Naksen Adjustable headphone
TW547882U (en) 2002-12-13 2003-08-11 Chang-Ning Hung Earphone capable of automatically receiving the earphone wire
US20040125976A1 (en) 2002-12-30 2004-07-01 Reneker Brian Scott Headphones or earmuffs with a user operated mechanical device that controls the volume of exterior sound entering the ear of the user
US7327850B2 (en) * 2003-07-15 2008-02-05 Bose Corporation Supplying electrical power
US8054985B2 (en) * 2003-11-03 2011-11-08 3M Innovative Properties Company Low sound attenuating hearing protection device with filter arrangement
SE526944C2 (sv) 2003-11-27 2005-11-22 Peltor Ab Hörselskydd
US7099485B2 (en) 2004-03-10 2006-08-29 Phonak Ag Housing for hearing devices or hearing aids
US7245735B2 (en) 2004-04-02 2007-07-17 David Han Earmuff structure for headset or ear protector
US7308106B2 (en) 2004-05-17 2007-12-11 Adaptive Technologies, Inc. System and method for optimized active controller design in an ANR system
EP1629808A1 (en) 2004-08-25 2006-03-01 Phonak Ag Earplug and method for manufacturing the same
US7391878B2 (en) 2005-01-12 2008-06-24 Sheng-Hsin Liao Earphone device having composite functions
JPWO2006106955A1 (ja) 2005-04-01 2008-09-11 松下電器産業株式会社 受話器、電子機器及び通信装置
SE528514C2 (sv) 2005-04-29 2006-12-05 Peltor Ab Hörselkåpa
SE528519C2 (sv) 2005-04-29 2006-12-05 Peltor Ab Hörselkåpa
GB2443989B (en) 2005-11-26 2008-11-05 Wolfson Microelectronics Plc Audio device and method
US8130971B2 (en) * 2006-01-04 2012-03-06 Werner Theodore J Manually switching dual-mode hearing protector
US7574917B2 (en) 2006-07-13 2009-08-18 Phonak Ag Method for in-situ measuring of acoustic attenuation and system therefor
GB2445984B (en) 2007-01-25 2011-12-07 Sonaptic Ltd Ambient noise reduction
GB2445388B (en) 2007-02-16 2009-01-07 Sonaptic Ltd Ear-worn speaker-carrying devices
DE102007013719B4 (de) 2007-03-19 2015-10-29 Sennheiser Electronic Gmbh & Co. Kg Hörer

Also Published As

Publication number Publication date
CN1897897A (zh) 2007-01-17
BRPI0416932B1 (pt) 2017-03-21
AU2004292926A1 (en) 2005-06-09
BRPI0416932A (pt) 2007-01-16
ATE425726T1 (de) 2009-04-15
US20070274529A1 (en) 2007-11-29
SE0303189L (sv) 2005-05-28
EP1689337A1 (en) 2006-08-16
RU2006122809A (ru) 2008-01-27
SE526944C2 (sv) 2005-11-22
CA2546859A1 (en) 2005-06-09
NO20062322L (no) 2006-07-12
WO2005051255A1 (en) 2005-06-09
AU2004292926C1 (en) 2012-07-19
US8243943B2 (en) 2012-08-14
DE602004020096D1 (de) 2009-04-30
RU2363433C2 (ru) 2009-08-10
CN1897897B (zh) 2010-12-01
AU2004292926B2 (en) 2011-11-03
EP1689337B1 (en) 2009-03-18

Similar Documents

Publication Publication Date Title
NO20062322L (no) Horselsvern
US8831232B2 (en) Anti-noise earmuff device with Bluetooth module and audio signal processor
US8675884B2 (en) Method and a system for processing signals
US8229740B2 (en) Apparatus and method for protecting hearing from noise while enhancing a sound signal of interest
BRPI0518669A2 (pt) protetor auricular
US10803857B2 (en) System and method for relative enhancement of vocal utterances in an acoustically cluttered environment
ATE527970T1 (de) Aktive störgeräuschunterdrückung bei hörhilfegeräten
KR20200138050A (ko) 콘텍스트에 기초한 주변 사운드 향상 및 음향 노이즈 소거
GB2445388B (en) Ear-worn speaker-carrying devices
JP2015219527A (ja) フィードバックマイクロフォン信号の飽和の影響を防止するａｎｃ雑音能動制御オーディオヘッドセット
JP2012063483A5 (sv)
NO20070138L (no) Anordning ved horselsbeskyttelse for demping av hoye lyder
CN107005757B (zh) 用于减轻耳机中的自身话音阻塞的设备和方法
WO2009050306A3 (en) System and method for providing active hearing protection to a user
CA2289033A1 (en) Active headset with bridge amplifier
SE0302404D0 (sv) Anordning vid ett bullerdämpande "headset"
US6961436B1 (en) Noise-protecting arrangement for ear protector
WO2010057267A1 (en) Adaptive hearing protection device
KR200426390Y1 (ko) 마이크를 구비하는 이어폰
US20110019834A1 (en) Hearing protector
GB2373667A (en) In ear communications over-volume protection
Abel et al. Signal detection and speech perception with level-dependent hearing protectors
JPH067397A (ja) 防音耳覆い
KR101422413B1 (ko) 청력 보호 장치
JPS6417596A (en) Voice processor for earmuff

Legal Events

Date Code Title Description
NUG Patent has lapsed