BR0204945A - Aparelho para gerar um fluxo de bit atsc 8-vsb, sistema digital atsc 8-vsb, método para gerar um fluxo de bit atsc 8-vsb, e, sinal - Google Patents

Aparelho para gerar um fluxo de bit atsc 8-vsb, sistema digital atsc 8-vsb, método para gerar um fluxo de bit atsc 8-vsb, e, sinal

Info

Publication number
BR0204945A
BR0204945A BR0204945-7A BR0204945A BR0204945A BR 0204945 A BR0204945 A BR 0204945A BR 0204945 A BR0204945 A BR 0204945A BR 0204945 A BR0204945 A BR 0204945A
Authority
BR
Brazil
Prior art keywords
atsc
vsb
generating
bit stream
alpha
Prior art date
Application number
BR0204945-7A
Other languages
English (en)
Inventor
Dagnachew Birru
Vasanth R Gaddam
Original Assignee
Koninklije Philips Electronics
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 Koninklije Philips Electronics filed Critical Koninklije Philips Electronics
Publication of BR0204945A publication Critical patent/BR0204945A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0057—Block codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0059—Convolutional codes
    • H04L1/006—Trellis-coded modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0064—Concatenated codes
    • H04L1/0065—Serial concatenated codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/007—Unequal error protection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0071—Use of interleaving

Abstract

"APARELHO PARA GERAR UM FLUXO DE BIT ATSC 8-VSB, SISTEMA DIGITAL ATSC 8-VSB, MéTODO PARA GERAR UM FLUXO DE BIT ATSC 8-VSB, E, SINAL". é descrito um aparelho e método para gerar fluxos de bit ATSC 8-VSB robusto para transmissão por um transmissor digital. O aparelho compreende uma unidade de codificador Reed-Solomon que codifica diversos fluxos de bit incluindo bits a serem codificados em um fluxo de bit ATSC 8-VSB robusto e bits a serem codificados em um fluxo de bit ATSC 8-VSB padrão. O aparelho compreende também uma unidade de codificador em treliça compreendendo uma unidade mapeadora de símbolo na qual um símbolo de saída R é forçado a um valor de menos um menos alfa (-1-<244>) quando R é igual a menos um (-1) e a um valor de mais um mais alfa (+1+<244>) quando R é igual a mais um (+1), onde o valor de alfa (<244>) é variável. Um bloco de controle estabelece o valor de alfa de acordo com o tipo de bits presentes dentro da unidade de codificador em treliça, para gerar ambos fluxos de bit ATSC 8-VSB robusto e padrão.
BR0204945-7A 2001-12-03 2002-12-02 Aparelho para gerar um fluxo de bit atsc 8-vsb, sistema digital atsc 8-vsb, método para gerar um fluxo de bit atsc 8-vsb, e, sinal BR0204945A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/011,968 US6973137B2 (en) 2001-12-03 2001-12-03 Apparatus and method for generating robust ATSC 8-VSB bit streams

Publications (1)

Publication Number Publication Date
BR0204945A true BR0204945A (pt) 2004-06-15

Family

ID=21752740

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0204945-7A BR0204945A (pt) 2001-12-03 2002-12-02 Aparelho para gerar um fluxo de bit atsc 8-vsb, sistema digital atsc 8-vsb, método para gerar um fluxo de bit atsc 8-vsb, e, sinal

Country Status (4)

Country Link
US (1) US6973137B2 (pt)
BR (1) BR0204945A (pt)
CA (1) CA2413247A1 (pt)
TW (1) TW200304321A (pt)

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Also Published As

Publication number Publication date
TW200304321A (en) 2003-09-16
CA2413247A1 (en) 2003-06-03
US20030103575A1 (en) 2003-06-05
US6973137B2 (en) 2005-12-06

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Legal Events

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

Free format text: REFERENTE A 6A E 7A A NUIDADES.

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 2055 DE 25/05/2010.