BR9702254B1 - sistema para suprimir um componente interferente em um sinal de entrada e telefone com viva voz. - Google Patents

sistema para suprimir um componente interferente em um sinal de entrada e telefone com viva voz.

Info

Publication number
BR9702254B1
BR9702254B1 BRPI9702254-3A BR9702254A BR9702254B1 BR 9702254 B1 BR9702254 B1 BR 9702254B1 BR 9702254 A BR9702254 A BR 9702254A BR 9702254 B1 BR9702254 B1 BR 9702254B1
Authority
BR
Brazil
Prior art keywords
speakerphone
suppressing
input signal
interfering component
interfering
Prior art date
Application number
BRPI9702254-3A
Other languages
English (en)
Other versions
BR9702254A (pt
Inventor
Cornelis Pieter Janse
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 filed Critical
Publication of BR9702254A publication Critical patent/BR9702254A/pt
Publication of BR9702254B1 publication Critical patent/BR9702254B1/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H04M9/082—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using echo cancellers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Noise Elimination (AREA)
BRPI9702254-3A 1996-05-31 1997-05-16 sistema para suprimir um componente interferente em um sinal de entrada e telefone com viva voz. BR9702254B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP96201516 1996-05-31
PCT/IB1997/000564 WO1997045995A1 (en) 1996-05-31 1997-05-16 Arrangement for suppressing an interfering component of an input signal

Publications (2)

Publication Number Publication Date
BR9702254A BR9702254A (pt) 1999-02-17
BR9702254B1 true BR9702254B1 (pt) 2009-12-01

Family

ID=8224035

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9702254-3A BR9702254B1 (pt) 1996-05-31 1997-05-16 sistema para suprimir um componente interferente em um sinal de entrada e telefone com viva voz.

Country Status (8)

Country Link
US (2) US6546099B2 (pt)
EP (1) EP0843934B1 (pt)
JP (1) JP4104659B2 (pt)
KR (1) KR100482396B1 (pt)
CN (1) CN1166160C (pt)
BR (1) BR9702254B1 (pt)
DE (1) DE69738288T2 (pt)
WO (1) WO1997045995A1 (pt)

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US6510224B1 (en) 1999-05-20 2003-01-21 Telefonaktiebolaget L M Ericsson Enhancement of near-end voice signals in an echo suppression system
KR100723283B1 (ko) 1999-06-24 2007-05-30 코닌클리케 필립스 일렉트로닉스 엔.브이. 음향 에코 및 잡음 제거 적응성 필터
DE19935808A1 (de) * 1999-07-29 2001-02-08 Ericsson Telefon Ab L M Echounterdrückungseinrichtung zum Unterdrücken von Echos in einer Sender/Empfänger-Einheit
US6580793B1 (en) * 1999-08-31 2003-06-17 Lucent Technologies Inc. Method and apparatus for echo cancellation with self-deactivation
US7310425B1 (en) * 1999-12-28 2007-12-18 Agere Systems Inc. Multi-channel frequency-domain adaptive filter method and apparatus
US6438225B1 (en) * 2000-01-13 2002-08-20 Motorola, Inc. Method and system for detecting and controlling severe echo
DE60120233D1 (de) * 2001-06-11 2006-07-06 Lear Automotive Eeds Spain Verfahren und system zum unterdrücken von echos und geräuschen in umgebungen unter variablen akustischen und stark rückgekoppelten bedingungen
US6751313B2 (en) * 2001-10-31 2004-06-15 Conexant Systems, Inc. Method and apparatus for an improved echo canceller
WO2003053033A1 (en) * 2001-12-14 2003-06-26 Koninklijke Philips Electronics N.V. Echo canceller having spectral echo tail estimator
JP2005514668A (ja) * 2002-01-09 2005-05-19 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ スペクトル出力比依存のプロセッサを有する音声向上システム
US7123788B2 (en) * 2002-05-06 2006-10-17 Korea Advanced Institute Of Science And Technology Apparatus for monitoring optical frequencies of WDM signals
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KR20050021472A (ko) * 2002-07-16 2005-03-07 코닌클리케 필립스 일렉트로닉스 엔.브이. 모델 부정합 보상을 하는 에코 상쇄장치
US7043208B2 (en) * 2002-10-15 2006-05-09 Motorola, Inc. Method and apparatus to reduce interference in a communication device
WO2004042702A1 (en) * 2002-11-05 2004-05-21 Koninklijke Philips Electronics N.V. Spectrogram reconstruction by means of a codebook
US7003099B1 (en) * 2002-11-15 2006-02-21 Fortmedia, Inc. Small array microphone for acoustic echo cancellation and noise suppression
US7672445B1 (en) * 2002-11-15 2010-03-02 Fortemedia, Inc. Method and system for nonlinear echo suppression
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ATE464738T1 (de) 2004-10-13 2010-04-15 Koninkl Philips Electronics Nv Echolöschung
DE602006012528D1 (de) * 2005-10-21 2010-04-08 Koninkl Philips Electronics Nv Akustischer echolöscher
US7764634B2 (en) * 2005-12-29 2010-07-27 Microsoft Corporation Suppression of acoustic feedback in voice communications
DE602007005228D1 (de) * 2006-01-06 2010-04-22 Koninkl Philips Electronics Nv Akustischer echokompensator
EP2002438A2 (en) * 2006-03-24 2008-12-17 Koninklijke Philips Electronics N.V. Device for and method of processing data for a wearable apparatus
US8054966B2 (en) 2006-07-21 2011-11-08 Sony Ericsson Mobile Communications Ab Echo cancellation and noise reduction adaptation during ringing signal playback
WO2008122930A1 (en) * 2007-04-04 2008-10-16 Koninklijke Philips Electronics N.V. Sound enhancement in closed spaces
EP2171714B1 (en) * 2007-06-21 2012-08-15 Koninklijke Philips Electronics N.V. A device for and a method of processing audio signals
US8094809B2 (en) * 2008-05-12 2012-01-10 Visteon Global Technologies, Inc. Frame-based level feedback calibration system for sample-based predictive clipping
JP2009290825A (ja) * 2008-06-02 2009-12-10 Yamaha Corp 音響エコーキャンセラ
JP5292931B2 (ja) * 2008-06-10 2013-09-18 ヤマハ株式会社 音響エコーキャンセラおよびエコーキャンセル装置
WO2010043998A1 (en) * 2008-10-16 2010-04-22 Nxp B.V. Microphone system and method of operating the same
KR101648203B1 (ko) * 2008-12-23 2016-08-12 코닌클리케 필립스 엔.브이. 스피치 캡처링 및 스피치 렌더링
US8634569B2 (en) * 2010-01-08 2014-01-21 Conexant Systems, Inc. Systems and methods for echo cancellation and echo suppression
US8462193B1 (en) * 2010-01-08 2013-06-11 Polycom, Inc. Method and system for processing audio signals
US8204210B2 (en) 2010-02-09 2012-06-19 Nxp B.V. Method and system for nonlinear acoustic echo cancellation in hands-free telecommunication devices
WO2012034231A1 (en) * 2010-09-14 2012-03-22 Research In Motion Limited Methods and devices for data compression with adaptive filtering in the transform domain
US9065895B2 (en) * 2012-02-22 2015-06-23 Broadcom Corporation Non-linear echo cancellation
CN103067821B (zh) * 2012-12-12 2015-03-11 歌尔声学股份有限公司 一种基于双麦克的语音混响消减方法和装置
US9998158B2 (en) 2015-05-27 2018-06-12 Finesse Wireless, Inc. Cancellation of spurious intermodulation products produced in nonlinear channels by frequency hopped signals and spurious signals
EP3563561A1 (en) 2016-12-30 2019-11-06 Harman Becker Automotive Systems GmbH Acoustic echo canceling

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DE3728109C1 (de) * 1987-08-22 1989-03-16 Telefonbau & Normalzeit Gmbh Verfahren fuer die sprachgesteuerte Daempfungsregelung in Fernsprechuebertragungskreisen
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FR2628918B1 (fr) * 1988-03-15 1990-08-10 France Etat Dispositif annuleur d'echo a filtrage en sous-bandes de frequence
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US5014294A (en) * 1990-02-01 1991-05-07 Motorola Inc. Speakerphone for cellular telephones with howl prevention, detection, elimination and determination
US5157690A (en) * 1990-10-30 1992-10-20 Level One Communications, Inc. Adaptive convergent decision feedback equalizer
NL9002790A (nl) * 1990-12-18 1992-07-16 Philips Nv Echocompensator met verbeterde dubbelspraak detectie.
US5153875A (en) * 1991-03-25 1992-10-06 Level One Communications, Inc. Adaptive balancing network
US5319636A (en) * 1991-11-14 1994-06-07 Codex Corporation Device and method for linear listener echo cancellation
US5307405A (en) * 1992-09-25 1994-04-26 Qualcomm Incorporated Network echo canceller
US5475731A (en) * 1994-01-07 1995-12-12 Ericsson Inc. Echo-canceling system and method using echo estimate to modify error signal
US5526426A (en) * 1994-11-08 1996-06-11 Signalworks System and method for an efficiently constrained frequency-domain adaptive filter
FR2729804B1 (fr) * 1995-01-24 1997-04-04 Matra Communication Annuleur d'echo acoustique a filtre adaptatif et passage dans le domaine frequentiel
JPH08204619A (ja) * 1995-01-26 1996-08-09 Nec Corp エコーサプレッサ
US5745564A (en) * 1995-01-26 1998-04-28 Northern Telecom Limited Echo cancelling arrangement
JP3484801B2 (ja) * 1995-02-17 2004-01-06 ソニー株式会社 音声信号の雑音低減方法及び装置
US5587998A (en) * 1995-03-03 1996-12-24 At&T Method and apparatus for reducing residual far-end echo in voice communication networks
US5592548A (en) * 1995-05-31 1997-01-07 Qualcomm Incorporated System and method for avoiding false convergence in the presence of tones in a time-domain echo cancellation process
US5663955A (en) * 1995-08-25 1997-09-02 Lucent Technologies Inc. Echo canceller system with shared coefficient memory
US5668794A (en) * 1995-09-29 1997-09-16 Crystal Semiconductor Variable gain echo suppressor
US5937060A (en) * 1996-02-09 1999-08-10 Texas Instruments Incorporated Residual echo suppression

Also Published As

Publication number Publication date
CN1198283A (zh) 1998-11-04
DE69738288D1 (de) 2007-12-27
EP0843934B1 (en) 2007-11-14
USRE41445E1 (en) 2010-07-20
JP4104659B2 (ja) 2008-06-18
US6546099B2 (en) 2003-04-08
CN1166160C (zh) 2004-09-08
BR9702254A (pt) 1999-02-17
WO1997045995A1 (en) 1997-12-04
JPH11510673A (ja) 1999-09-14
KR100482396B1 (ko) 2005-08-04
KR19990035995A (ko) 1999-05-25
US20020159585A1 (en) 2002-10-31
EP0843934A1 (en) 1998-05-27
DE69738288T2 (de) 2008-09-25

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Legal Events

Date Code Title Description
TC Change of name
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
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 01/12/2009, OBSERVADAS AS CONDICOES LEGAIS.

B25D Requested change of name of applicant approved

Owner name: KONINKLIJKE PHILIPS N.V. (NL)

B25G Requested change of headquarter approved

Owner name: KONINKLIJKE PHILIPS N.V. (NL)

B25A Requested transfer of rights approved

Owner name: MEDIATEK INC. (TW)

B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 01.12.2019