BR0007775A - Enquadramento de dados para sistema de codificação com comprimento de bloco adaptável - Google Patents
Enquadramento de dados para sistema de codificação com comprimento de bloco adaptávelInfo
- Publication number
- BR0007775A BR0007775A BR0007775-5A BR0007775A BR0007775A BR 0007775 A BR0007775 A BR 0007775A BR 0007775 A BR0007775 A BR 0007775A BR 0007775 A BR0007775 A BR 0007775A
- Authority
- BR
- Brazil
- Prior art keywords
- segments
- frames
- transformations
- sequence
- audio
- Prior art date
Links
Classifications
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- 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
-
- 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
- G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/233—Processing of audio elementary streams
Abstract
Patente de Invenção: "ENQUADRAMENTO DE DADOS PARA SISTEMA DE CODIFICAçãO COM COMPRIMENTO DE BLOCO ADAPTáVEL". Um codificador de áudio aplica um processo de codificação de bloco adaptável junto a segmentos de informação de áudio para gerar quadros de informação codificada que estão alinhados com um sinal de referência transportando o alinhamento de uma seq³ência de quadros de informação de vídeo. A informação de áudio é analisada para determinar as várias características do sinal de áudio tal como a ocorrência e a localização de um transitório e um sinal de controle é gerado, o qual causa que o processo de codificação de bloco adaptável codifique os segmentos de comprimento variável. Um decodificador complementar aplica um processo de decodificação de bloco adaptável para recuperar os segmentos de informação de áudio dos quadros de informação codificada. Nas modalidades que aplicam as transformações de cancelamento de aliasing no domínio de tempo (TDAC), as funções de janela e transformações são aplicadas de acordo com um de uma pluralidade de padrões de segmento que define os parâmetros das funções de janela e das transformações para cada segmento em uma seq³ência de segmentos. Os segmentos em cada quadro de uma seq³ência de quadros que se sobrepõem podem ser recuperados sem artefatos de aliasing independentemente da recuperação dos segmentos em outros quadros. As funções de janela são adaptadas para proporcionar as respostas no domínio de freq³ência e os perfis de ganho no domínio de tempo desejados.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/239,345 US6226608B1 (en) | 1999-01-28 | 1999-01-28 | Data framing for adaptive-block-length coding system |
PCT/US2000/001424 WO2000045389A1 (en) | 1999-01-28 | 2000-01-20 | Data framing for adaptive-block-length coding system |
Publications (1)
Publication Number | Publication Date |
---|---|
BR0007775A true BR0007775A (pt) | 2002-02-05 |
Family
ID=22901762
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR0007775-5A BR0007775A (pt) | 1999-01-28 | 2000-01-20 | Enquadramento de dados para sistema de codificação com comprimento de bloco adaptável |
Country Status (18)
Country | Link |
---|---|
US (1) | US6226608B1 (pt) |
EP (1) | EP1151435B1 (pt) |
JP (1) | JP4540232B2 (pt) |
KR (1) | KR100702058B1 (pt) |
CN (1) | CN1255809C (pt) |
AR (1) | AR022335A1 (pt) |
AT (1) | ATE223612T1 (pt) |
AU (1) | AU771332B2 (pt) |
BR (1) | BR0007775A (pt) |
CA (1) | CA2354396C (pt) |
DE (1) | DE60000412T2 (pt) |
DK (1) | DK1151435T3 (pt) |
ES (1) | ES2179018T3 (pt) |
HK (1) | HK1043429B (pt) |
MX (1) | MXPA01007547A (pt) |
MY (1) | MY128069A (pt) |
TW (1) | TW519629B (pt) |
WO (1) | WO2000045389A1 (pt) |
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1999
- 1999-01-28 US US09/239,345 patent/US6226608B1/en not_active Expired - Lifetime
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2000
- 2000-01-20 KR KR1020017009474A patent/KR100702058B1/ko active IP Right Grant
- 2000-01-20 ES ES00904459T patent/ES2179018T3/es not_active Expired - Lifetime
- 2000-01-20 JP JP2000596567A patent/JP4540232B2/ja not_active Expired - Lifetime
- 2000-01-20 DE DE60000412T patent/DE60000412T2/de not_active Expired - Lifetime
- 2000-01-20 CN CNB008030634A patent/CN1255809C/zh not_active Expired - Lifetime
- 2000-01-20 EP EP00904459A patent/EP1151435B1/en not_active Expired - Lifetime
- 2000-01-20 CA CA002354396A patent/CA2354396C/en not_active Expired - Lifetime
- 2000-01-20 WO PCT/US2000/001424 patent/WO2000045389A1/en active IP Right Grant
- 2000-01-20 MX MXPA01007547A patent/MXPA01007547A/es active IP Right Grant
- 2000-01-20 DK DK00904459T patent/DK1151435T3/da active
- 2000-01-20 AU AU26215/00A patent/AU771332B2/en not_active Expired
- 2000-01-20 BR BR0007775-5A patent/BR0007775A/pt not_active Application Discontinuation
- 2000-01-20 AT AT00904459T patent/ATE223612T1/de active
- 2000-01-26 TW TW089101300A patent/TW519629B/zh not_active IP Right Cessation
- 2000-01-27 MY MYPI20000298A patent/MY128069A/en unknown
- 2000-01-27 AR ARP000100351A patent/AR022335A1/es unknown
-
2002
- 2002-07-02 HK HK02104927.8A patent/HK1043429B/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP1151435A1 (en) | 2001-11-07 |
HK1043429A1 (en) | 2002-09-13 |
CA2354396C (en) | 2008-10-21 |
DE60000412D1 (de) | 2002-10-10 |
ATE223612T1 (de) | 2002-09-15 |
JP2002536681A (ja) | 2002-10-29 |
KR20010101749A (ko) | 2001-11-14 |
EP1151435B1 (en) | 2002-09-04 |
ES2179018T3 (es) | 2003-01-16 |
HK1043429B (zh) | 2006-10-06 |
MY128069A (en) | 2007-01-31 |
TW519629B (en) | 2003-02-01 |
AU771332B2 (en) | 2004-03-18 |
CN1255809C (zh) | 2006-05-10 |
CN1338104A (zh) | 2002-02-27 |
KR100702058B1 (ko) | 2007-03-30 |
DE60000412T2 (de) | 2003-08-07 |
US6226608B1 (en) | 2001-05-01 |
MXPA01007547A (es) | 2002-07-02 |
AR022335A1 (es) | 2002-09-04 |
JP4540232B2 (ja) | 2010-09-08 |
WO2000045389A1 (en) | 2000-08-03 |
CA2354396A1 (en) | 2000-08-03 |
DK1151435T3 (da) | 2002-10-14 |
AU2621500A (en) | 2000-08-18 |
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