BRPI0509818A - processamento de sinal de informações pela modificação da representação da faixa espectral / espectral de modulação - Google Patents

processamento de sinal de informações pela modificação da representação da faixa espectral / espectral de modulação

Info

Publication number
BRPI0509818A
BRPI0509818A BRPI0509818-1A BRPI0509818A BRPI0509818A BR PI0509818 A BRPI0509818 A BR PI0509818A BR PI0509818 A BRPI0509818 A BR PI0509818A BR PI0509818 A BRPI0509818 A BR PI0509818A
Authority
BR
Brazil
Prior art keywords
spectral
information signal
modulation
representation
spectral representation
Prior art date
Application number
BRPI0509818-1A
Other languages
English (en)
Inventor
Sascha Disch
Karsten Linzmeier
Juergen Herre
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 BRPI0509818A publication Critical patent/BRPI0509818A/pt
Publication of BRPI0509818B1 publication Critical patent/BRPI0509818B1/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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0212—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 spectral analysis, e.g. transform vocoders or subband vocoders using orthogonal transformation
    • 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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • 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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G10L2021/02087—Noise filtering the noise being separate speech, e.g. cocktail party

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)
  • Spectroscopy & Molecular Physics (AREA)
  • Computational Linguistics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Optical Communication System (AREA)
  • Holo Graphy (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Liquid Crystal (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

PROCESSAMENTO DE SINAL DE INFORMAçõES PELA MODIFICAçãO DA REPRESENTAçãO DA FAIXA ESPECTRAL/ESPECTRAL DE MODULAçãO. O processamento de sinais de informações separados de acordo com a modulação e componentes portadoras de maneira mais controlada é possibilitado por um dispositivo de processamento de um sinal de informações (14) incluindo um meio (20) para a conversão do sinal de informações (14) em uma representação tempo/espectral pela transformação em bloco do sinal de informações e o meio (22) para a conversão do sinal de informações da representação tempo/espectral para uma representação espectral/espectral de modulação, caracterizado pelo fato de que o meio (22) para a conversão é desenhado de maneira que a representação espectral/espectral de modulação dependa tanto de uma componente de magnitude como de uma componente de fase da representação tempo/espectral do sinal de informações (14). Um meio (24, 40) faz então uma manipulação e/ou modificação do sinal de informações (14) na representação espectral/espectral de modulação para obter uma representação espectral/espectral de modulação modificada. Um outro meio (26) finalmente forma um sinal de informações processado (18) que representa uma versão processada do sinal de informações (14) baseado na representação espectral/espectral de modulação modificada.
BRPI0509818-1A 2004-04-30 2005-03-22 Processamento de sinal de informações pela modificação da representação da faixa espectral / espectral de modulação BRPI0509818B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102004021403.4 2004-04-30
DE102004021403A DE102004021403A1 (de) 2004-04-30 2004-04-30 Informationssignalverarbeitung durch Modifikation in der Spektral-/Modulationsspektralbereichsdarstellung
PCT/EP2005/003064 WO2005109240A1 (de) 2004-04-30 2005-03-22 Informationssignalverarbeitung durch modifikation in der spektral-/modulationsspektralbereichsdarstellung

Publications (2)

Publication Number Publication Date
BRPI0509818A true BRPI0509818A (pt) 2007-09-18
BRPI0509818B1 BRPI0509818B1 (pt) 2022-06-07

Family

ID=34965409

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0509818-1A BRPI0509818B1 (pt) 2004-04-30 2005-03-22 Processamento de sinal de informações pela modificação da representação da faixa espectral / espectral de modulação

Country Status (15)

Country Link
US (1) US7574313B2 (pt)
EP (1) EP1741039B1 (pt)
JP (1) JP4473913B2 (pt)
KR (1) KR100851424B1 (pt)
CN (1) CN100583085C (pt)
AT (1) ATE458225T1 (pt)
AU (1) AU2005241157B8 (pt)
BR (1) BRPI0509818B1 (pt)
CA (1) CA2564970C (pt)
DE (2) DE102004021403A1 (pt)
IL (1) IL178671A (pt)
MX (1) MXPA06012424A (pt)
NO (1) NO337309B1 (pt)
RU (1) RU2351006C2 (pt)
WO (1) WO2005109240A1 (pt)

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Also Published As

Publication number Publication date
CN1950815A (zh) 2007-04-18
NO337309B1 (no) 2016-03-07
JP2007535849A (ja) 2007-12-06
EP1741039B1 (de) 2010-02-17
DE502005009035D1 (de) 2010-04-01
AU2005241157B2 (en) 2008-05-22
BRPI0509818B1 (pt) 2022-06-07
CN100583085C (zh) 2010-01-20
EP1741039A1 (de) 2007-01-10
US7574313B2 (en) 2009-08-11
MXPA06012424A (es) 2007-01-17
KR20070015174A (ko) 2007-02-01
DE102004021403A1 (de) 2005-11-24
ATE458225T1 (de) 2010-03-15
CA2564970A1 (en) 2005-11-17
WO2005109240A1 (de) 2005-11-17
NO20065423L (no) 2007-01-26
KR100851424B1 (ko) 2008-08-11
AU2005241157A1 (en) 2005-11-17
JP4473913B2 (ja) 2010-06-02
CA2564970C (en) 2012-02-07
US20070100610A1 (en) 2007-05-03
HK1097326A1 (zh) 2007-06-22
RU2006142324A (ru) 2008-06-10
RU2351006C2 (ru) 2009-03-27
IL178671A (en) 2011-03-31
AU2005241157B8 (en) 2008-11-06
IL178671A0 (en) 2007-02-11

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Legal Events

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B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B15K Others concerning applications: alteration of classification

Ipc: G10L 19/02 (2013.01)

Free format text: AS CLASSIFICACOES ANTERIORES ERAM: G06F 17/14 , G10L 19/02 , H04N 7/30 , G10L 21/02

Ipc: G10L 19/02 (2013.01)

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]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 22/03/2005, OBSERVADAS AS CONDICOES LEGAIS. PATENTE CONCEDIDA CONFORME ADI 5.529/DF, QUE DETERMINA A ALTERACAO DO PRAZO DE CONCESSAO.

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

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