BRPI0410856B8 - métodos de codificar e de decodificar sinais multicanais, aparelho codificador, e, aparelho decodificador - Google Patents

métodos de codificar e de decodificar sinais multicanais, aparelho codificador, e, aparelho decodificador Download PDF

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Publication number
BRPI0410856B8
BRPI0410856B8 BRPI0410856A BRPI0410856A BRPI0410856B8 BR PI0410856 B8 BRPI0410856 B8 BR PI0410856B8 BR PI0410856 A BRPI0410856 A BR PI0410856A BR PI0410856 A BRPI0410856 A BR PI0410856A BR PI0410856 B8 BRPI0410856 B8 BR PI0410856B8
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Brazil
Prior art keywords
signal
lateral
coding
encoding
methods
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BRPI0410856A
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English (en)
Inventor
Taleb Anisse
Enström Daniel
Johansson Ingemar
Bruhn Stefan
Original Assignee
Ericsson Telefon Ab L M
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Publication date
Priority claimed from SE0303501A external-priority patent/SE0303501D0/xx
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to BRPI0419281-8A priority Critical patent/BRPI0419281B1/pt
Publication of BRPI0410856A publication Critical patent/BRPI0410856A/pt
Publication of BRPI0410856B1 publication Critical patent/BRPI0410856B1/pt
Publication of BRPI0410856B8 publication Critical patent/BRPI0410856B8/pt

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    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes

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  • 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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Endoscopes (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

"métodos de codificar e de decodificar sinais polifônicos, aparelho de codificador, e, sistema de áudio". sinais polifônicos são usados para criar um sinal principal, tipicamente um sinal mono, e um sinal lateral (x~ lateral~). vários esquemas de codificação (81) para o sinal lateral (x~ lateral~) são providos. cada esquema de codificação (81) é caracterizado por um conjunto de subquadros (90) de comprimentos diferentes. o comprimento total dos subquadros (90) corresponde ao comprimento do quadro de codificação (80) do esquema de codificação (81). o esquema de codificação (81) a ser usado no sinal lateral (x~ lateral~) é selecionado dependente do conteúdo de sinal presente dos sinais polifônicos. em uma concretização preferida, um sinal residual lateral é criado como a diferença entre o sinal lateral e o sinal principal graduado com um fator de equilíbrio. o fator de equilíbrio é selecionado para minimizar o sinal residual lateral. o sinal residual lateral otimizado e o fator de equilíbrio são codificados e providos como parâmetros de codificação representando o sinal lateral.
BRPI0410856A 2003-12-19 2004-12-15 métodos de codificar e de decodificar sinais multicanais, aparelho codificador, e, aparelho decodificador BRPI0410856B8 (pt)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BRPI0419281-8A BRPI0419281B1 (pt) 2003-12-19 2004-12-15 Métodos de codificar e de decodificar sinais multicanais, e, aparelhos codificador e decodificador

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
SE0303501-1 2003-12-19
SE0303501A SE0303501D0 (sv) 2003-12-19 2003-12-19 Filter-based parametric multi-channel coding
SE0400417A SE527670C2 (sv) 2003-12-19 2004-02-20 Naturtrogenhetsoptimerad kodning med variabel ramlängd
SE0400417-2 2004-02-20
PCT/SE2004/001867 WO2005059899A1 (en) 2003-12-19 2004-12-15 Fidelity-optimised variable frame length encoding

Publications (3)

Publication Number Publication Date
BRPI0410856A BRPI0410856A (pt) 2006-07-04
BRPI0410856B1 BRPI0410856B1 (pt) 2019-10-01
BRPI0410856B8 true BRPI0410856B8 (pt) 2019-10-15

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BRPI0410856A BRPI0410856B8 (pt) 2003-12-19 2004-12-15 métodos de codificar e de decodificar sinais multicanais, aparelho codificador, e, aparelho decodificador
BRPI0419281-8A BRPI0419281B1 (pt) 2003-12-19 2004-12-15 Métodos de codificar e de decodificar sinais multicanais, e, aparelhos codificador e decodificador

Family Applications After (1)

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BRPI0419281-8A BRPI0419281B1 (pt) 2003-12-19 2004-12-15 Métodos de codificar e de decodificar sinais multicanais, e, aparelhos codificador e decodificador

Country Status (14)

Country Link
EP (2) EP1623411B1 (pt)
JP (2) JP4335917B2 (pt)
CN (2) CN101118747B (pt)
AT (2) ATE371924T1 (pt)
AU (1) AU2004298708B2 (pt)
BR (2) BRPI0410856B8 (pt)
CA (2) CA2690885C (pt)
DE (2) DE602004008613T2 (pt)
MX (1) MXPA05012230A (pt)
PL (1) PL1623411T3 (pt)
RU (2) RU2305870C2 (pt)
SE (1) SE527670C2 (pt)
WO (1) WO2005059899A1 (pt)
ZA (1) ZA200508980B (pt)

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Also Published As

Publication number Publication date
CN100559465C (zh) 2009-11-11
JP2008026914A (ja) 2008-02-07
DE602004023240D1 (de) 2009-10-29
EP1845519A2 (en) 2007-10-17
JP4335917B2 (ja) 2009-09-30
CA2527971A1 (en) 2005-06-30
JP4589366B2 (ja) 2010-12-01
ATE443317T1 (de) 2009-10-15
SE0400417L (sv) 2005-06-20
RU2425340C2 (ru) 2011-07-27
RU2305870C2 (ru) 2007-09-10
HK1091585A1 (zh) 2007-01-19
RU2005134365A (ru) 2006-05-27
AU2004298708A1 (en) 2005-06-30
CA2690885A1 (en) 2005-06-30
DE602004008613D1 (de) 2007-10-11
WO2005059899A1 (en) 2005-06-30
BRPI0419281B1 (pt) 2018-08-14
CN101118747A (zh) 2008-02-06
EP1845519A3 (en) 2007-11-07
MXPA05012230A (es) 2006-02-10
DE602004008613T2 (de) 2008-06-12
HK1115665A1 (en) 2008-12-05
AU2004298708B2 (en) 2008-01-03
SE527670C2 (sv) 2006-05-09
EP1845519B1 (en) 2009-09-16
EP1623411A1 (en) 2006-02-08
EP1623411B1 (en) 2007-08-29
RU2007121143A (ru) 2008-12-10
BRPI0410856A (pt) 2006-07-04
CN1816847A (zh) 2006-08-09
ATE371924T1 (de) 2007-09-15
JP2007529021A (ja) 2007-10-18
SE0400417D0 (sv) 2004-02-20
BRPI0410856B1 (pt) 2019-10-01
CA2527971C (en) 2011-03-15
CA2690885C (en) 2014-01-21
PL1623411T3 (pl) 2008-01-31
CN101118747B (zh) 2011-02-23
ZA200508980B (en) 2007-03-28

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B15K Others concerning applications: alteration of classification

Ipc: G10L 19/008 (2013.01), G10L 19/18 (2013.01)

B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]
B12B Appeal against refusal [chapter 12.2 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

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B16C Correction of notification of the grant [chapter 16.3 patent gazette]

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B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 20A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2805 DE 08-10-2024 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.