BRPI0818401A2 - Sistema robusto de supressão de ruído de dois microfones - Google Patents

Sistema robusto de supressão de ruído de dois microfones

Info

Publication number
BRPI0818401A2
BRPI0818401A2 BRPI0818401A BRPI0818401A2 BR PI0818401 A2 BRPI0818401 A2 BR PI0818401A2 BR PI0818401 A BRPI0818401 A BR PI0818401A BR PI0818401 A2 BRPI0818401 A2 BR PI0818401A2
Authority
BR
Brazil
Prior art keywords
noise suppression
suppression system
microphone noise
dual microphone
robust dual
Prior art date
Application number
Other languages
English (en)
Inventor
Robert A Zurek
Jeffrey M Axelrod
Joel A Clark
Holly L Francois
Scott K Isabelle
David J Pearce
James A Rex
Original Assignee
Motorola 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 Motorola Inc filed Critical Motorola Inc
Publication of BRPI0818401A2 publication Critical patent/BRPI0818401A2/pt
Publication of BRPI0818401B1 publication Critical patent/BRPI0818401B1/pt

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0272—Voice signal separating
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L2021/02161—Number of inputs available containing the signal or the noise to be suppressed
    • G10L2021/02165—Two microphones, one receiving mainly the noise signal and the other one mainly the speech signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Noise Elimination (AREA)
BRPI0818401-1A 2007-10-18 2008-10-01 Sistema e método para redução de ruído BRPI0818401B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/874,263 2007-10-18
US11/874,263 US8046219B2 (en) 2007-10-18 2007-10-18 Robust two microphone noise suppression system
PCT/US2008/078395 WO2009051959A1 (en) 2007-10-18 2008-10-01 Robust two microphone noise suppression system

Publications (2)

Publication Number Publication Date
BRPI0818401A2 true BRPI0818401A2 (pt) 2015-04-22
BRPI0818401B1 BRPI0818401B1 (pt) 2020-02-18

Family

ID=40564365

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0818401-1A BRPI0818401B1 (pt) 2007-10-18 2008-10-01 Sistema e método para redução de ruído

Country Status (9)

Country Link
US (1) US8046219B2 (pt)
EP (2) EP2183853B1 (pt)
KR (2) KR101184806B1 (pt)
CN (1) CN101828335B (pt)
BR (1) BRPI0818401B1 (pt)
ES (1) ES2398407T3 (pt)
MX (1) MX2010004192A (pt)
RU (1) RU2483439C2 (pt)
WO (1) WO2009051959A1 (pt)

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Also Published As

Publication number Publication date
EP2207168A2 (en) 2010-07-14
RU2483439C2 (ru) 2013-05-27
CN101828335B (zh) 2015-06-24
EP2183853A4 (en) 2010-11-03
ES2398407T3 (es) 2013-03-15
KR20100054873A (ko) 2010-05-25
KR101184806B1 (ko) 2012-09-20
CN101828335A (zh) 2010-09-08
EP2207168A3 (en) 2010-10-20
WO2009051959A1 (en) 2009-04-23
RU2010119709A (ru) 2011-11-27
US8046219B2 (en) 2011-10-25
EP2207168B1 (en) 2012-08-22
KR20100056567A (ko) 2010-05-27
EP2183853B1 (en) 2012-12-26
MX2010004192A (es) 2010-05-14
US20090106021A1 (en) 2009-04-23
KR101171494B1 (ko) 2012-08-07
EP2183853A1 (en) 2010-05-12
BRPI0818401B1 (pt) 2020-02-18

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Legal Events

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B25D Requested change of name of applicant approved

Owner name: MOTOROLA SOLUTIONS, INC. (US)

B25A Requested transfer of rights approved

Owner name: MOTOROLA MOBILITY, INC. (US)

B25E Requested change of name of applicant rejected

Owner name: MOTOROLA MOBILITY, INC. (US)

Free format text: INDEFERIDO O PEDIDO DE ALTERACAO DE NOME CONTIDO NA PETICAO 20130041671 DE 16/05/2013, DEVIDO A AUSENCIA DE GUIA DE RECOLHIMENTO RELATIVA AO SERVICO.

B25G Requested change of headquarter approved

Owner name: MOTOROLA MOBILITY, INC. (US)

B25D Requested change of name of applicant approved

Owner name: MOTOROLA MOBILITY LLC (US)

B25A Requested transfer of rights approved

Owner name: GOOGLE TECHNOLOGY HOLDINGS LLC (US)

B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B15K Others concerning applications: alteration of classification

Free format text: A CLASSIFICACAO ANTERIOR ERA: H04B 1/10

Ipc: G10L 21/0208 (2013.01), G10L 21/0272 (2013.01), G1

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 18/02/2020, OBSERVADAS AS CONDICOES LEGAIS.