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MX2010008034A - Aparato y metodo para calcular informacion de control para un filtro de supresion de eco y aparato y metodo para calcular un valor de retraso. - Google Patents

Aparato y metodo para calcular informacion de control para un filtro de supresion de eco y aparato y metodo para calcular un valor de retraso.

Info

Publication number
MX2010008034A
MX2010008034A MX2010008034A MX2010008034A MX2010008034A MX 2010008034 A MX2010008034 A MX 2010008034A MX 2010008034 A MX2010008034 A MX 2010008034A MX 2010008034 A MX2010008034 A MX 2010008034A MX 2010008034 A MX2010008034 A MX 2010008034A
Authority
MX
Mexico
Prior art keywords
computing
control information
suppression filter
band
energy
Prior art date
Application number
MX2010008034A
Other languages
English (en)
Inventor
Christof Faller
Fabian Kuech
Markus Kallinger
Alexis Favrot
Original Assignee
Fraunhofer Ges Forschung
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 Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of MX2010008034A publication Critical patent/MX2010008034A/es

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)
  • Circuit For Audible Band Transducer (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephone Function (AREA)

Abstract

Una modalidad de un aparato (200) para procesar, calcular o computar información de control para un filtro de supresión (210) para filtrar una segunda señal de audio para suprimir un eco basado en la primera señal de audio, incluye medios de cálculo (220) y tienen un medio para determinación de valor (230) para determinar al menos un valor relacionado a energía para una señal de paso de banda de al menos dos bloques de datos temporalmente sucesivos de al menos una señal de un grupo de señales. Los medios de cálculo (220) además incluyen un medio para determinación de valor promedio (250) para determinar al menos un valor promedio de al menos un valor relacionado a energía determinado para la señal de paso de banda. Los medios de cálculo (220) además incluyen un medio de modificación (260) para modificar el valor relacionado a energía como mínimo para la señal de paso de banda en base al valor promedio determinado para la señal de paso de banda. Los medios de cálculo (220) además incluyen un medio para cálculo de información de control (270) para calcular la información de control para el filtro de supresión (210) en base al valor relacionado a energía modificado como mínimo.
MX2010008034A 2008-01-25 2009-01-12 Aparato y metodo para calcular informacion de control para un filtro de supresion de eco y aparato y metodo para calcular un valor de retraso. MX2010008034A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US2347208P 2008-01-25 2008-01-25
DE102008039329A DE102008039329A1 (de) 2008-01-25 2008-08-22 Vorrichtung und Verfahren zur Berechnung von Steuerinformationen für ein Echounterdrückungsfilter und Vorrichtung und Verfahren zur Berechnung eines Verzögerungswerts
PCT/EP2009/000123 WO2009092522A1 (en) 2008-01-25 2009-01-12 Apparatus and method for computing control information for an echo suppression filter and apparatus and method for computing a delay value

Publications (1)

Publication Number Publication Date
MX2010008034A true MX2010008034A (es) 2010-09-22

Family

ID=40794586

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2010008034A MX2010008034A (es) 2008-01-25 2009-01-12 Aparato y metodo para calcular informacion de control para un filtro de supresion de eco y aparato y metodo para calcular un valor de retraso.

Country Status (14)

Country Link
US (1) US8731207B2 (es)
EP (1) EP2235927B1 (es)
JP (1) JP5102371B2 (es)
KR (1) KR101250124B1 (es)
CN (1) CN101953145B (es)
AU (1) AU2009207881B2 (es)
BR (1) BRPI0905760B1 (es)
CA (1) CA2713127C (es)
DE (1) DE102008039329A1 (es)
ES (1) ES2641770T3 (es)
MX (1) MX2010008034A (es)
RU (1) RU2495506C2 (es)
TW (1) TWI458331B (es)
WO (1) WO2009092522A1 (es)

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Also Published As

Publication number Publication date
TW200942016A (en) 2009-10-01
AU2009207881A1 (en) 2009-07-30
TWI458331B (zh) 2014-10-21
BRPI0905760B1 (pt) 2020-09-24
JP5102371B2 (ja) 2012-12-19
ES2641770T3 (es) 2017-11-13
JP2011511522A (ja) 2011-04-07
CN101953145B (zh) 2013-03-27
AU2009207881B2 (en) 2012-07-12
CN101953145A (zh) 2011-01-19
US8731207B2 (en) 2014-05-20
DE102008039329A1 (de) 2009-07-30
CA2713127C (en) 2015-03-24
RU2010131421A (ru) 2012-02-10
KR20100133365A (ko) 2010-12-21
BRPI0905760A8 (pt) 2017-11-28
WO2009092522A1 (en) 2009-07-30
EP2235927B1 (en) 2017-07-12
EP2235927A1 (en) 2010-10-06
RU2495506C2 (ru) 2013-10-10
US20110044461A1 (en) 2011-02-24
CA2713127A1 (en) 2009-07-30
KR101250124B1 (ko) 2013-04-09

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