AR016165A1 - Dispositivo y aparato de supresion del eco - Google Patents

Dispositivo y aparato de supresion del eco

Info

Publication number
AR016165A1
AR016165A1 ARP990100075A ARP990100075A AR016165A1 AR 016165 A1 AR016165 A1 AR 016165A1 AR P990100075 A ARP990100075 A AR P990100075A AR P990100075 A ARP990100075 A AR P990100075A AR 016165 A1 AR016165 A1 AR 016165A1
Authority
AR
Argentina
Prior art keywords
noise
individual
examples
model
background noise
Prior art date
Application number
ARP990100075A
Other languages
English (en)
Original Assignee
Ericsson 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 Ericsson Inc filed Critical Ericsson Inc
Publication of AR016165A1 publication Critical patent/AR016165A1/es

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M9/00Arrangements for interconnection not involving centralised switching
    • H04M9/08Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M9/00Arrangements for interconnection not involving centralised switching
    • H04M9/08Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H04M9/082Two-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)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephone Function (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Noise Elimination (AREA)

Abstract

Se dan a conocer métodos y aparatos para modelar en forma paramétrica el ruido de fondo y generar ruido de confort de sistemas de supresion el eco. Deacuerdo con los ejemplos de realizaciones, un modelo de ruido de fondo se basa en un conjunto de parámetros de modelo de ruido que a su vez se basan enmediciones de ruido de fondo real en un sistema de supresion del eco. Los ejemplos de realizaciones incluyen modelos de dominio de frecuencia y media movilautorregresiva. Un ejemplo de modelo de media movil autorregresiva de primer orden incluye un cero fijo individual y un polo variable individual. El ceroindividual son suficientes para proporcionar una inclinacion espectral en el resultado del ruido modelado y el cero individual garantiza queel modelo seaincondicionalmente estable. También se da a conocer la integracion de los ejemplos de modelos de ruido paramétrico con distintos dispositivos de supresion deleco.
ARP990100075A 1998-01-09 1999-01-08 Dispositivo y aparato de supresion del eco AR016165A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/005,145 US6163608A (en) 1998-01-09 1998-01-09 Methods and apparatus for providing comfort noise in communications systems

Publications (1)

Publication Number Publication Date
AR016165A1 true AR016165A1 (es) 2001-06-20

Family

ID=21714410

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP990100075A AR016165A1 (es) 1998-01-09 1999-01-08 Dispositivo y aparato de supresion del eco

Country Status (18)

Country Link
US (1) US6163608A (es)
EP (1) EP1046273B1 (es)
JP (1) JP2002501337A (es)
KR (1) KR20010033994A (es)
CN (1) CN1286862A (es)
AR (1) AR016165A1 (es)
AU (1) AU758211B2 (es)
BR (1) BR9813789A (es)
CA (1) CA2317425A1 (es)
CO (1) CO4810365A1 (es)
DE (1) DE69816128T2 (es)
EE (1) EE200000417A (es)
ID (1) ID25799A (es)
IL (1) IL137183A (es)
MY (1) MY123024A (es)
NO (1) NO317976B1 (es)
RU (1) RU2220510C2 (es)
WO (1) WO1999035813A1 (es)

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Also Published As

Publication number Publication date
BR9813789A (pt) 2000-10-03
JP2002501337A (ja) 2002-01-15
KR20010033994A (ko) 2001-04-25
EP1046273B1 (en) 2003-07-02
EE200000417A (et) 2001-12-17
IL137183A0 (en) 2001-07-24
NO20003505L (no) 2000-09-11
CO4810365A1 (es) 1999-06-30
CA2317425A1 (en) 1999-07-15
AU1998099A (en) 1999-07-26
DE69816128D1 (de) 2003-08-07
ID25799A (id) 2000-11-02
CN1286862A (zh) 2001-03-07
NO317976B1 (no) 2005-01-17
IL137183A (en) 2004-09-27
MY123024A (en) 2006-05-31
US6163608A (en) 2000-12-19
WO1999035813A1 (en) 1999-07-15
RU2220510C2 (ru) 2003-12-27
NO20003505D0 (no) 2000-07-07
DE69816128T2 (de) 2004-04-15
AU758211B2 (en) 2003-03-20
EP1046273A1 (en) 2000-10-25

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