BR0112062A - Robust data extension for 8vsb signaling - Google Patents
Robust data extension for 8vsb signalingInfo
- Publication number
- BR0112062A BR0112062A BR0112062A BR0112062A BR0112062A BR 0112062 A BR0112062 A BR 0112062A BR 0112062 A BR0112062 A BR 0112062A BR 0112062 A BR0112062 A BR 0112062A BR 0112062 A BR0112062 A BR 0112062A
- Authority
- BR
- Brazil
- Prior art keywords
- 8vsb
- interlacing
- data packets
- robust data
- rate
- Prior art date
Links
Abstract
"EXTENSãO DE DADOS ROBUSTA PARA SINALIZAçãO DE 8VSB". Uma extensão de dados robustos é adicionada a um sistema de transmissão de televisão digital de 8VSB padrão, pela codificação de pacotes de dados de alta prioridade em um codificador de entrelaçamento de taxa 1/2. Os pacotes de dados de alta prioridade codificados com entrelaçamento de 1/2 são multiplexados com pacotes de dados normais e introduzidos em um serviço de dados normais de um sistema de 8VSB, o qual ainda contém um codificador de entrelaçamento de taxa 2/3. A codificação com entrelaçamento resulta em uma codificação com entrelaçamento de taxa 1/3 para pacotes de dados robustos e em uma codificação com entrelaçamento de taxa 2/3 para pacotes normais. A codificação com entrelaçamento de taxa 1/3 provê a robustez substancialmente equivalente de um sinal de 2VSB, enquanto retém as características de compatibilidade com retorno de um sinal de 8VSB. Quatro exigências de legado para compatibilidade com retorno com os receptores e os transmissores conformes com o ATSC são cumpridas: 1) o módulo do conjunto de símbolo para transmissão de dados robustos é o mesmo que aquele para um sinal de 8VSB; 2) a compatibilidade com os codificadores e os decodificadores de entrelaçamento existentes é mantida; 3) os bytes de paridade de Reed Solomon são transmitidos como dados normais, de modo que os receptores existentes não indiquem os pacotes de dados robustos como tendo erros de paridade de Reed Solomon; e 4) a compatibilidade com MPEG é mantida, garantindo que os pacotes de dados robustos não apareçam como falsos pacotes de MPEG que, de outra forma, desestabilizariam o decodificador de MPEG existente."ROBUST DATA EXTENSION FOR 8VSB SIGNALING". A robust data extension is added to a standard 8VSB digital television transmission system by encoding high priority data packets in a 1/2 rate interleaving encoder. High-interleaved encoded 1/2 priority data packets are multiplexed with normal data packets and introduced into a normal data service of an 8VSB system, which still contains a 2/3 rate interleaving encoder. Interlacing encoding results in 1/3 rate interlacing encoding for robust data packets and 2/3 rate interlacing encoding for normal packets. 1/3 rate interlacing coding provides the substantially equivalent robustness of a 2VSB signal while retaining the backward compatibility characteristics of an 8VSB signal. Four legacy requirements for backward compatibility with ATSC-compliant receivers and transmitters are met: 1) the symbol set module for robust data transmission is the same as that for an 8VSB signal; 2) compatibility with existing interlacing encoders and decoders is maintained; 3) Reed Solomon parity bytes are transmitted as normal data, so that existing receivers do not indicate robust data packets as having Reed Solomon parity errors; and 4) MPEG compatibility is maintained by ensuring that robust data packets do not appear as fake MPEG packets that would otherwise destabilize the existing MPEG decoder.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US21570300P | 2000-07-01 | 2000-07-01 | |
| US28094401P | 2001-04-02 | 2001-04-02 | |
| US28931001P | 2001-05-07 | 2001-05-07 | |
| PCT/US2001/041235 WO2002003678A2 (en) | 2000-07-01 | 2001-06-30 | Robust data extension for 8vsb signaling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR0112062A true BR0112062A (en) | 2003-05-13 |
Family
ID=27396177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR0112062A BR0112062A (en) | 2000-07-01 | 2001-06-30 | Robust data extension for 8vsb signaling |
Country Status (2)
| Country | Link |
|---|---|
| BR (1) | BR0112062A (en) |
| CA (1) | CA2413229A1 (en) |
-
2001
- 2001-06-30 BR BR0112062A patent/BR0112062A/en not_active IP Right Cessation
- 2001-06-30 CA CA 2413229 patent/CA2413229A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| CA2413229A1 (en) | 2002-01-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B25A | Requested transfer of rights approved |
Free format text: ATI TECHNOLOGIES INC. (CA) |
|
| B25A | Requested transfer of rights approved |
Owner name: ADVANCED MICRO DEVICES, INC. (US) Free format text: TRANSFERIDO POR FUSAO DE: ATI TECHNOLOGIES INC. |
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| B08L | Patent application lapsed because of non payment of annual fee [chapter 8.12 patent gazette] |
Free format text: REFERENTE AO NAO RECOLHIMENTO DAS 10A, 11A E 12A ANUIDADES. |
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| B08I | Publication cancelled [chapter 8.9 patent gazette] |
Free format text: ANULADA A PUBLICACAO CODIGO 8.12 NA RPI NO 2256 DE 01/04/2014 POR TER SIDO INDEVIDA. |
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| B08F | Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette] |
Free format text: REFERENTE AS 10A, 11A, 12A, 13A, 14A, 15A, 16A, 17A, 18A E 19A ANUIDADES. |
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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: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2602 DE 17-11-2020 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013. |