JP5400143B2 - オーバーラッピング変換の２つのブロック変換への因数分解 - Google Patents

オーバーラッピング変換の２つのブロック変換への因数分解 Download PDF

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JP5400143B2
JP5400143B2 JP2011511737A JP2011511737A JP5400143B2 JP 5400143 B2 JP5400143 B2 JP 5400143B2 JP 2011511737 A JP2011511737 A JP 2011511737A JP 2011511737 A JP2011511737 A JP 2011511737A JP 5400143 B2 JP5400143 B2 JP 5400143B2
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transform
subframe
matrix
block
overlap
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JP2011522291A5 (enExample
JP2011522291A (ja
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メーロトラ，サンジーヴ
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Microsoft Corp
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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
    • G10L19/02—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
    • G10L19/0017—Lossless audio signal coding; Perfect reconstruction of coded audio signal by transmission of coding error
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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 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
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • Theoretical Computer Science (AREA)
  • Discrete Mathematics (AREA)
  • Algebra (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
JP2011511737A 2008-05-30 2009-05-22 オーバーラッピング変換の２つのブロック変換への因数分解 Active JP5400143B2 (ja)

Applications Claiming Priority (3)

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US12/130,862 2008-05-30
US12/130,862 US8447591B2 (en) 2008-05-30 2008-05-30 Factorization of overlapping tranforms into two block transforms
PCT/US2009/044983 WO2009148858A2 (en) 2008-05-30 2009-05-22 Factorization of overlapping transforms into two block transforms

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JP2011522291A JP2011522291A (ja) 2011-07-28
JP2011522291A5 JP2011522291A5 (enExample) 2012-06-07
JP5400143B2 true JP5400143B2 (ja) 2014-01-29

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US (1) US8447591B2 (enExample)
EP (1) EP2279562B1 (enExample)
JP (1) JP5400143B2 (enExample)
KR (1) KR101679083B1 (enExample)
CN (1) CN102047564B (enExample)
WO (1) WO2009148858A2 (enExample)

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CN102047564B (zh) 2013-08-21
CN102047564A (zh) 2011-05-04
US8447591B2 (en) 2013-05-21
JP2011522291A (ja) 2011-07-28
EP2279562A4 (en) 2012-07-11
WO2009148858A2 (en) 2009-12-10
US20090299754A1 (en) 2009-12-03
KR101679083B1 (ko) 2016-11-23
WO2009148858A3 (en) 2010-02-25
KR20110021803A (ko) 2011-03-04
EP2279562B1 (en) 2015-12-16
EP2279562A2 (en) 2011-02-02

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