BRPI0512763A - equipamento e método para gerar um sinal de saìda multicanais - Google Patents

equipamento e método para gerar um sinal de saìda multicanais

Info

Publication number
BRPI0512763A
BRPI0512763A BRPI0512763-7A BRPI0512763A BRPI0512763A BR PI0512763 A BRPI0512763 A BR PI0512763A BR PI0512763 A BRPI0512763 A BR PI0512763A BR PI0512763 A BRPI0512763 A BR PI0512763A
Authority
BR
Brazil
Prior art keywords
channel
cancellation
channels
generating
output signal
Prior art date
Application number
BRPI0512763-7A
Other languages
English (en)
Inventor
Juergen Herre
Christof Faller
Sascha Disch
Johannes Hilpert
Original Assignee
Fraunhofer Ges Forschung
Agere Systems 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34966842&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BRPI0512763(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fraunhofer Ges Forschung, Agere Systems Inc filed Critical Fraunhofer Ges Forschung
Publication of BRPI0512763A publication Critical patent/BRPI0512763A/pt
Publication of BRPI0512763B1 publication Critical patent/BRPI0512763B1/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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/03—Application of parametric coding in stereophonic audio systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Mathematical Physics (AREA)
  • Stereophonic System (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Logic Circuits (AREA)

Abstract

EQUIPAMENTO E MéTODO PARA GERAR UM SINAL DE SAìDA MULTICANAIS. Equipamento para gerar um sinal de saída multicanais executa um cancelamento de canal central para obter canais de base melhorados para reconstruir canais de saída do lado esquerdo ou canais de saída do lado direito. Em especial, o equipamento inclui um calculador de canal de cancelamento (20) para calcular um canal de cancelamento usando informação relacionada ao canal central original disponível no decodificador. O dispositivo inclui ainda um combinador (22) para combinar um canal de transmissão com o canal de cancelamento. Finalmente, o equipamento inclui um reconstrutor (26) para gerar o sinal de saída multicanais. Devido ao cancelamento do canal central, o reconstrutor de canal (26) não apenas usa um canal de base diferente para reconstruir o canal central, mas também usa canais de base diferentes dos canais de transmissão para reconstruir canais de saída esquerdo e direito que têm uma influência reduzida ou mesmo completamente cancelada do canal central original.
BRPI0512763A 2004-07-09 2005-05-12 equipamento e método para gerar um sinal de saída multicanais BRPI0512763B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US58657804P 2004-07-09 2004-07-09
US10/935,061 US7391870B2 (en) 2004-07-09 2004-09-07 Apparatus and method for generating a multi-channel output signal
PCT/EP2005/005199 WO2006005390A1 (en) 2004-07-09 2005-05-12 Apparatus and method for generating a multi-channel output signal

Publications (2)

Publication Number Publication Date
BRPI0512763A true BRPI0512763A (pt) 2008-04-08
BRPI0512763B1 BRPI0512763B1 (pt) 2018-08-28

Family

ID=34966842

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0512763A BRPI0512763B1 (pt) 2004-07-09 2005-05-12 equipamento e método para gerar um sinal de saída multicanais

Country Status (16)

Country Link
US (1) US7391870B2 (pt)
EP (1) EP1774515B1 (pt)
JP (1) JP4772043B2 (pt)
KR (1) KR100908080B1 (pt)
CN (1) CN1985303B (pt)
AT (1) ATE556406T1 (pt)
AU (1) AU2005262025B2 (pt)
BR (1) BRPI0512763B1 (pt)
CA (1) CA2572989C (pt)
ES (1) ES2387248T3 (pt)
HK (1) HK1099901A1 (pt)
NO (1) NO338725B1 (pt)
PT (1) PT1774515E (pt)
RU (1) RU2361185C2 (pt)
TW (1) TWI305639B (pt)
WO (1) WO2006005390A1 (pt)

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Also Published As

Publication number Publication date
ATE556406T1 (de) 2012-05-15
NO20070034L (no) 2007-02-06
RU2361185C2 (ru) 2009-07-10
CA2572989A1 (en) 2006-01-19
KR100908080B1 (ko) 2009-07-15
PT1774515E (pt) 2012-08-09
CN1985303B (zh) 2011-06-15
US7391870B2 (en) 2008-06-24
KR20070027692A (ko) 2007-03-09
NO338725B1 (no) 2016-10-10
HK1099901A1 (en) 2007-08-24
BRPI0512763B1 (pt) 2018-08-28
JP4772043B2 (ja) 2011-09-14
WO2006005390A1 (en) 2006-01-19
AU2005262025B2 (en) 2008-10-09
RU2007104933A (ru) 2008-08-20
CN1985303A (zh) 2007-06-20
TWI305639B (en) 2009-01-21
US20060009225A1 (en) 2006-01-12
ES2387248T3 (es) 2012-09-19
EP1774515A1 (en) 2007-04-18
AU2005262025A1 (en) 2006-01-19
JP2008505368A (ja) 2008-02-21
EP1774515B1 (en) 2012-05-02
CA2572989C (en) 2011-08-09
TW200617884A (en) 2006-06-01

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