BR0304611A - Codificador de áudio embutido progressivo para sem perda (pleac) com transformação reversìvel com múltiplas fatorações - Google Patents

Codificador de áudio embutido progressivo para sem perda (pleac) com transformação reversìvel com múltiplas fatorações

Info

Publication number
BR0304611A
BR0304611A BR0304611-7A BR0304611A BR0304611A BR 0304611 A BR0304611 A BR 0304611A BR 0304611 A BR0304611 A BR 0304611A BR 0304611 A BR0304611 A BR 0304611A
Authority
BR
Brazil
Prior art keywords
factor
progressive
reversible
pleac
built
Prior art date
Application number
BR0304611-7A
Other languages
English (en)
Inventor
Jin Li
Original Assignee
Microsoft Corp
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 Microsoft Corp filed Critical Microsoft Corp
Publication of BR0304611A publication Critical patent/BR0304611A/pt

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G06F17/147—Discrete orthonormal transforms, e.g. discrete cosine transform, discrete sine transform, and variations therefrom, e.g. modified discrete cosine transform, integer transforms approximating the discrete cosine transform
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/0017—Lossless audio signal coding; Perfect reconstruction of coded audio signal by transmission of coding error
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/124—Quantisation

Abstract

"CODIFICADOR DE áUDIO EMBUTIDO PROGRESSIVO PARA SEM PERDA (PLEAC) COM TRANSFORMAçãO REVERSìVEL COM MúLTIPLAS FATORAçõES". São proporcionados um sistema e método para codificação de dados sem perdas e/ou progressiva para sem perdas (por exemplo, áudio e/ou imagem). O sistema e método empregam um componente de transformação reversível com múltiplas fatorações que proporciona coeficientes quantizados baseados, pelo menos em parte, em uma transformação reversível com múltiplas fatorações. O componente de transformação reversível com múltiplas fatorações pode empregar uma transformação sobreposta modulada com N pontos de acordo com um aspecto da presente invenção. O componente de transformação reversível com múltiplas fatorações pode compreender um estágio de modulação, um estágio de rotação pré-FFT e um estágio de rotação pós-FFT.
BR0304611-7A 2002-11-21 2003-10-16 Codificador de áudio embutido progressivo para sem perda (pleac) com transformação reversìvel com múltiplas fatorações BR0304611A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/300,995 US7395210B2 (en) 2002-11-21 2002-11-21 Progressive to lossless embedded audio coder (PLEAC) with multiple factorization reversible transform

Publications (1)

Publication Number Publication Date
BR0304611A true BR0304611A (pt) 2004-08-31

Family

ID=32229885

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0304611-7A BR0304611A (pt) 2002-11-21 2003-10-16 Codificador de áudio embutido progressivo para sem perda (pleac) com transformação reversìvel com múltiplas fatorações

Country Status (7)

Country Link
US (1) US7395210B2 (pt)
EP (1) EP1422694A3 (pt)
JP (1) JP4374233B2 (pt)
KR (1) KR101006287B1 (pt)
CN (1) CN100442850C (pt)
AU (1) AU2003248196A1 (pt)
BR (1) BR0304611A (pt)

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CN101046964B (zh) * 2007-04-13 2011-09-14 清华大学 基于重叠变换压缩编码的错误隐藏帧重建方法
US8185381B2 (en) * 2007-07-19 2012-05-22 Qualcomm Incorporated Unified filter bank for performing signal conversions
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Also Published As

Publication number Publication date
CN100442850C (zh) 2008-12-10
KR20040045287A (ko) 2004-06-01
KR101006287B1 (ko) 2011-01-06
EP1422694A3 (en) 2017-05-10
JP4374233B2 (ja) 2009-12-02
EP1422694A2 (en) 2004-05-26
JP2004173250A (ja) 2004-06-17
CN1503572A (zh) 2004-06-09
US7395210B2 (en) 2008-07-01
AU2003248196A1 (en) 2004-06-10
US20040102963A1 (en) 2004-05-27

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Legal Events

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B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

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B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2259 DE 22/04/2014.