BRPI0908668A2 - ''produtor auditivo com alto-falantes'' - Google Patents

''produtor auditivo com alto-falantes''

Info

Publication number
BRPI0908668A2
BRPI0908668A2 BRPI0908668A BRPI0908668A BRPI0908668A2 BR PI0908668 A2 BRPI0908668 A2 BR PI0908668A2 BR PI0908668 A BRPI0908668 A BR PI0908668A BR PI0908668 A BRPI0908668 A BR PI0908668A BR PI0908668 A2 BRPI0908668 A2 BR PI0908668A2
Authority
BR
Brazil
Prior art keywords
speakers
audio producer
producer
audio
Prior art date
Application number
BRPI0908668A
Other languages
English (en)
Inventor
Henrik Sjöman
Johan Häkansson
Original Assignee
3M Svenska 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 3M Svenska Ab filed Critical 3M Svenska Ab
Publication of BRPI0908668A2 publication Critical patent/BRPI0908668A2/pt
Publication of BRPI0908668A8 publication Critical patent/BRPI0908668A8/pt
Publication of BRPI0908668B1 publication Critical patent/BRPI0908668B1/pt

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
    • H04R1/1008—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
    • H04R1/1058—Manufacture or assembly
    • H04R1/1075—Mountings of transducers in earphones or headphones
    • 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
    • H04R1/1083—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
    • A61F11/145—Protective devices for the ears external, e.g. earcaps or earmuffs electric, e.g. for active noise reduction
    • 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

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Signal Processing (AREA)
  • Biomedical Technology (AREA)
  • Public Health (AREA)
  • Otolaryngology (AREA)
  • Psychology (AREA)
  • Veterinary Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biophysics (AREA)
  • Manufacturing & Machinery (AREA)
  • Headphones And Earphones (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Stereophonic Arrangements (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
BRPI0908668-4A 2008-05-12 2009-04-27 Protetor auditivo com alto-falantes BRPI0908668B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0801067-0 2008-05-12
SE0801067A SE531656E5 (sv) 2008-05-12 2008-05-12 Hörselskydd
PCT/SE2009/000214 WO2009139682A1 (en) 2008-05-12 2009-04-27 Hearing protector

Publications (3)

Publication Number Publication Date
BRPI0908668A2 true BRPI0908668A2 (pt) 2015-12-01
BRPI0908668A8 BRPI0908668A8 (pt) 2018-12-18
BRPI0908668B1 BRPI0908668B1 (pt) 2019-10-08

Family

ID=40774543

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0908668-4A BRPI0908668B1 (pt) 2008-05-12 2009-04-27 Protetor auditivo com alto-falantes

Country Status (12)

Country Link
US (1) US9131310B2 (pt)
EP (1) EP2301257B1 (pt)
JP (1) JP2011523529A (pt)
CN (1) CN102027756A (pt)
AU (1) AU2009246995B2 (pt)
BR (1) BRPI0908668B1 (pt)
CA (1) CA2724195A1 (pt)
NO (1) NO342949B1 (pt)
RU (1) RU2462830C2 (pt)
SE (1) SE531656E5 (pt)
TW (1) TW200946085A (pt)
WO (1) WO2009139682A1 (pt)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9154867B2 (en) * 2011-03-25 2015-10-06 Honeywell Safety Products Usa, Inc. Earmuff enclosure
SE537957C2 (sv) * 2012-06-21 2015-12-08 Hellberg Safety Ab Hörselskydd
CN104010261A (zh) * 2013-02-25 2014-08-27 旭达电脑（昆山）有限公司 手机听筒助听器
EP3228290A1 (en) 2016-04-08 2017-10-11 3M Innovative Properties Company Hearing protector and a method of making a hearing protector
EP3346726A1 (en) * 2017-01-04 2018-07-11 Harman Becker Automotive Systems GmbH Arrangements and methods for active noise cancelling
EP3494940A1 (en) * 2017-12-08 2019-06-12 3M Innovative Properties Company A hearing protector having a unidirectional sound inlet
CN108634963B (zh) * 2018-08-17 2024-05-31 佛山博智医疗科技有限公司 可调节的耳罩式声场测听装置
FR3127838B1 (fr) 2021-10-01 2023-10-27 Appi Tech Dispositif de réduction de bruit et d’identification pour casque de protection acoustique

Family Cites Families (87)

* 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 (pt) 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
JPS54124532U (pt) 1978-02-21 1979-08-31
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 (pt) * 1980-06-20 1982-01-21
US4867149A (en) * 1985-03-29 1989-09-19 Cabot Corporation Earplugs
WO1987004065A1 (en) 1986-01-03 1987-07-16 Trompler Lyle D Noise limiting circuit for earmuffs
US4928311A (en) * 1986-01-03 1990-05-22 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
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
DE9012732U1 (de) 1989-09-11 1990-12-20 Kind, Werner, 3006 Burgwedel Gehörschutzvorrichtung
DK576889D0 (da) 1989-11-17 1989-11-17 Per Rubak Hoerevaern
JPH03274997A (ja) 1990-03-26 1991-12-05 Calsonic Corp アクティブ・ノイズ・キャンセラー
JPH03130700U (pt) * 1990-04-10 1991-12-27
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
WO1994000089A1 (en) * 1992-06-19 1994-01-06 Joseph Sylvester Chang 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
DE69424419T2 (de) * 1993-06-23 2001-01-04 Noise Cancellation Technologies, Inc. Aktive lärmunterdrückungsanordnung mit variabler verstärkung und verbesserter restlärmmessung
US5357585A (en) * 1993-07-09 1994-10-18 Khyber Technologies Corporation Headphone assembly
US5550923A (en) * 1994-09-02 1996-08-27 Minnesota Mining And Manufacturing Company Directional ear device with adaptive bandwidth and gain control
JP2940418B2 (ja) 1994-10-20 1999-08-25 ソニー株式会社 インナーイヤ型ヘッドホン
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
EP0884974B1 (en) 1996-02-08 2007-04-18 Hal Greenberger Noise-reducing stethoscope
JPH1032892A (ja) * 1996-05-16 1998-02-03 Sony Corp 開放型ヘッドホン
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
SE511947C2 (sv) * 1997-08-15 1999-12-20 Peltor Ab Hörselskydd med regleringsknappar nedsänkta i ena hörselkåpan
CN1138447C (zh) * 1998-02-16 2004-02-11 林仲宇 无传音性听力损失与冲击噪音之耳机
JP4294754B2 (ja) * 1998-04-21 2009-07-15 ボーズ・コーポレーション 能動型ノイズ低減ヘッドセット
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
US6259796B1 (en) * 1999-07-06 2001-07-10 Chung-Yu Lin Earpiece without impulse and high frequency noise
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
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
AU2003221710A1 (en) 2002-04-08 2003-10-27 Adam M. Faussett 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
US20050238181A1 (en) 2003-11-27 2005-10-27 Sigvard Nilsson Hearing protector
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
EP1865745A4 (en) * 2005-04-01 2011-03-30 Panasonic Corp COMBINED ELECTRONIC DEVICE AND COMMUNICATION DEVICE
SE528519C2 (sv) * 2005-04-29 2006-12-05 Peltor Ab Hörselkåpa
SE528514C2 (sv) 2005-04-29 2006-12-05 Peltor Ab Hörselkåpa
US20060269090A1 (en) * 2005-05-27 2006-11-30 Roman Sapiejewski Supra-aural headphone noise reducing
US7444687B2 (en) * 2005-08-29 2008-11-04 3M Innovative Properties Company Hearing protective device that includes cellular earmuffs
GB2443989B (en) * 2005-11-26 2008-11-05 Wolfson Microelectronics Plc Audio device and method
RU2302225C1 (ru) * 2005-12-15 2007-07-10 Олег Савельевич Кочетов Противошумный наушник (варианты)
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
US9241227B2 (en) * 2011-01-06 2016-01-19 Bose Corporation Transducer with integrated sensor

Also Published As

Publication number Publication date
SE531656C2 (sv) 2009-06-23
US9131310B2 (en) 2015-09-08
WO2009139682A1 (en) 2009-11-19
SE0801067L (sv) 2009-06-23
EP2301257A1 (en) 2011-03-30
NO20101720A1 (no) 2011-02-11
RU2010146133A (ru) 2012-06-20
EP2301257B1 (en) 2022-06-01
NO342949B1 (no) 2018-09-10
AU2009246995A1 (en) 2009-11-19
AU2009246995B2 (en) 2013-05-16
CA2724195A1 (en) 2009-11-19
BRPI0908668A8 (pt) 2018-12-18
WO2009139682A8 (en) 2010-12-09
SE531656E5 (sv) 2011-04-26
US20110064239A1 (en) 2011-03-17
EP2301257A4 (en) 2013-12-04
TW200946085A (en) 2009-11-16
CN102027756A (zh) 2011-04-20
RU2462830C2 (ru) 2012-09-27
BRPI0908668B1 (pt) 2019-10-08
JP2011523529A (ja) 2011-08-11

Similar Documents

Publication Publication Date Title
GB0715273D0 (en) Audio headset
DK2846557T3 (da) Forbedret højtaleranordning
DE602007003775D1 (de) Lautsprecher
ATE554604T1 (de) Verbesserter ohrhörer
DK2248360T3 (da) Vibrationstone differentiering
BRPI0908668A2 (pt) ''produtor auditivo com alto-falantes''
BRPI0914533A2 (pt) "métodos"
PT2208366E (pt) Auscultadores acústicos
BRPI0918042A2 (pt) intensificação de reprodução de múltiplos canais de áudio
BRPI0907062A2 (pt) "hidrociclone"
MA30860B1 (fr) Myrtillier denomme "c97-390"
DE102008013627B8 (de) Lautsprecher
DE502008000917D1 (de) Lautsprecherbox
BRPI0905998A2 (pt) "aperfeiçoamento em alto-falante autorrefrigerado"
GB2446614B (en) Audio amplifier
FR2931584B1 (fr) Bouton-poussoir sonore
ES1067459Y (es) Grabador-reproductor digital de sonidos autofijable
SE0602469L (sv) Audiokabel
GB0722394D0 (en) Audio speaker
GB0816107D0 (en) Improvements in the reproduction of stereo sound
FIU20070137U0 (fi) Kaiutinkotelo
DOS2007000007S (es) Reproductor de música digital
GB2446188B (en) Audio amplifier
TH98070B (th) ลำโพง
ITRM20060390A1 (it) Equalizzatore audio parametrico

Legal Events

Date Code Title Description
B15I Others concerning applications: loss of priority

Free format text: APESAR DE HAVER APRESENTADO DOCUMENTO DECLARATORIO RELATIVO A PRIORIDADE, CONSTATOU-SE QUE O DOCUMENTO DE PRIORIDADE NA WIPO ESTA EM NOME DE OUTRA REQUERENTE. SENDO ASSIM, PERDA DA PRIORIDADE SE 0801067-0 DE 12/05/2008 REIVINDICADA NO PCT SE2009/000214 DE 27/04/2009, CONFORME AS DISPOSICOES PREVISTAS NA LEI 9.279 DE 14/05/1996 (LPI) ART. 16 7O E ITEM 28 DO ATO NORMATIVO 128/97. OBSERVA-SE QUE A PRIORIDADE SUPRACITADA POSSUI COMO TITULAR PELTOR AB. ESTA PERDA SE DEU PELO FATO DE O DEPOSITANTE CONSTANTE DA PETICAO DE REQUERIMENTO DO PEDIDO PCT (3M SVENSKA AB) SER DISTINTO DAQUELE QUE DEPOSITOU A PRIORIDADE REIVINDICADA E NAO APRESENTOU DOCUMENTO COMPROBATORIO DE CESSAO, CONFORME AS DISPOSICO

B12F Other appeals [chapter 12.6 patent gazette]
B25A Requested transfer of rights approved

Owner name: 3M INNOVATIVE PROPERTIES COMPANY (US)

B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B06T Formal requirements before examination [chapter 6.20 patent gazette]

Free format text: 6.20

B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 08/10/2019, OBSERVADAS AS CONDICOES LEGAIS. (CO) 10 (DEZ) ANOS CONTADOS A PARTIR DE 08/10/2019, OBSERVADAS AS CONDICOES LEGAIS