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BRPI0507806A - transformação hìbrida adaptável para análise e sìntese de sinal - Google Patents

transformação hìbrida adaptável para análise e sìntese de sinal

Info

Publication number
BRPI0507806A
BRPI0507806A BRPI0507806-7A BRPI0507806A BRPI0507806A BR PI0507806 A BRPI0507806 A BR PI0507806A BR PI0507806 A BRPI0507806 A BR PI0507806A BR PI0507806 A BRPI0507806 A BR PI0507806A
Authority
BR
Brazil
Prior art keywords
synthesis
transformation
analysis
transformations
adaptable
Prior art date
Application number
BRPI0507806-7A
Other languages
English (en)
Inventor
Mark Stuart Vinton
Grant Allen Davidson
Original Assignee
Dolby Lab Licensing 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 Dolby Lab Licensing Corp filed Critical Dolby Lab Licensing Corp
Publication of BRPI0507806A publication Critical patent/BRPI0507806A/pt
Publication of BRPI0507806B1 publication Critical patent/BRPI0507806B1/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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • 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
    • H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
    • H04N19/122—Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
    • 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Pure & Applied Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Human Computer Interaction (AREA)
  • Discrete Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Data Mining & Analysis (AREA)
  • Software Systems (AREA)
  • Databases & Information Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Algebra (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Stereophonic System (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Control Of Eletrric Generators (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

TRANSFORMAçãO HìBRIDA ADAPTáVEL PARA ANáLISE E SìNTESE DE SINAL. A presente invenção refere-se a bancos de filtros de análise e síntese tal como estes utilizados nos sistemas de codificação de áudio e vídeo que são implementados por uma transformação híbrida que compreende uma transformação primária em cascata com uma ou mais transformações secundárias. As transformações primárias para os bancos de filtros implementam um sistema de análise/síntese no qual artefatos de freqüências réplicas no domínio do tempo são cancelados. As transformações secundárias, as quais estão em cascata com as transformações primárias, são aplicadas junto aos blocos de coeficientes da transformação. O comprimento dos blocos é variado para adaptar a resolução de tempo dos bancos de filtros de análise e síntese.
BRPI0507806-7A 2004-02-19 2005-01-21 Método para gerar um sinal de saída, aparelho para gerar um sinal de saída e suporte de gravação BRPI0507806B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/783,951 US7516064B2 (en) 2004-02-19 2004-02-19 Adaptive hybrid transform for signal analysis and synthesis
US10/783,951 2004-02-19
PCT/US2005/001923 WO2005083682A1 (en) 2004-02-19 2005-01-21 Adaptive hybrid transform for signal analysis and synthesis

Publications (2)

Publication Number Publication Date
BRPI0507806A true BRPI0507806A (pt) 2007-07-10
BRPI0507806B1 BRPI0507806B1 (pt) 2019-06-25

Family

ID=34861377

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0507806-7A BRPI0507806B1 (pt) 2004-02-19 2005-01-21 Método para gerar um sinal de saída, aparelho para gerar um sinal de saída e suporte de gravação

Country Status (21)

Country Link
US (1) US7516064B2 (pt)
EP (3) EP2293293B1 (pt)
JP (1) JP4689625B2 (pt)
KR (1) KR101273486B1 (pt)
CN (2) CN1926609B (pt)
AT (1) ATE526660T1 (pt)
AU (2) AU2005217943B2 (pt)
BR (1) BRPI0507806B1 (pt)
CA (4) CA2860180C (pt)
CY (1) CY1122444T1 (pt)
DE (1) DE602005015427D1 (pt)
DK (1) DK1723638T3 (pt)
ES (1) ES2329384T3 (pt)
IL (1) IL177093A (pt)
LT (1) LT2293293T (pt)
MY (2) MY146425A (pt)
PL (1) PL1723638T3 (pt)
PT (1) PT1723638E (pt)
SI (1) SI2088583T1 (pt)
TW (2) TWI463790B (pt)
WO (1) WO2005083682A1 (pt)

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Also Published As

Publication number Publication date
JP4689625B2 (ja) 2011-05-25
DE602005015427D1 (en) 2009-08-27
CA2860180A1 (en) 2005-09-09
CA2554381A1 (en) 2005-09-09
EP1723638B1 (en) 2009-07-15
CA2880055C (en) 2016-05-31
MY146425A (en) 2012-08-15
WO2005083682A1 (en) 2005-09-09
CA2860180C (en) 2015-08-11
DK1723638T3 (da) 2009-09-07
CA2554381C (en) 2014-11-04
JP2007526691A (ja) 2007-09-13
EP2088583A3 (en) 2009-08-19
TW200529548A (en) 2005-09-01
TWI463790B (zh) 2014-12-01
BRPI0507806B1 (pt) 2019-06-25
CN1926609B (zh) 2010-05-26
CA2880055A1 (en) 2005-09-09
TWI369852B (en) 2012-08-01
EP2293293B1 (en) 2019-11-27
PL1723638T3 (pl) 2009-11-30
MY143979A (en) 2011-07-29
HK1092925A1 (en) 2007-02-16
CN101826071B (zh) 2011-09-14
AU2005217943B2 (en) 2010-05-13
ATE526660T1 (de) 2011-10-15
HK1130358A1 (en) 2009-12-24
TW201214949A (en) 2012-04-01
CA2924281A1 (en) 2005-09-09
CA2924281C (en) 2017-11-07
CN101826071A (zh) 2010-09-08
EP2088583A2 (en) 2009-08-12
AU2010203126A1 (en) 2010-08-12
US20050185850A1 (en) 2005-08-25
US7516064B2 (en) 2009-04-07
ES2329384T3 (es) 2009-11-25
CY1122444T1 (el) 2021-01-27
LT2293293T (lt) 2020-01-10
AU2005217943A1 (en) 2005-09-09
EP1723638A1 (en) 2006-11-22
PT1723638E (pt) 2009-09-24
KR20070001123A (ko) 2007-01-03
SI2088583T1 (sl) 2012-07-31
EP2293293A1 (en) 2011-03-09
EP2088583B1 (en) 2011-09-28
KR101273486B1 (ko) 2013-06-14
AU2010203126B2 (en) 2012-12-13
IL177093A (en) 2010-12-30
IL177093A0 (en) 2006-12-10
CN1926609A (zh) 2007-03-07

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Legal Events

Date Code Title Description
B15K Others concerning applications: alteration of classification

Ipc: G06F 17/14 (2006.01), G10L 19/02 (2013.01), H04N 1

B15K Others concerning applications: alteration of classification

Ipc: G10L 19/02 (2013.01), G06T 9/00 (2006.01), G06F 17

B15K Others concerning applications: alteration of classification

Ipc: G10L 19/02 (2013.01), G06F 17/14 (2006.01)

B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 25/06/2019, OBSERVADAS AS CONDICOES LEGAIS. (CO) 10 (DEZ) ANOS CONTADOS A PARTIR DE 25/06/2019, OBSERVADAS AS CONDICOES LEGAIS