BRPI0605417A - transmissor de televisão digital para codificação de dados principais e otimizados e método para codificação de dados principais e otimizados em um transmissor de televisão digital - Google Patents

transmissor de televisão digital para codificação de dados principais e otimizados e método para codificação de dados principais e otimizados em um transmissor de televisão digital

Info

Publication number
BRPI0605417A
BRPI0605417A BRPI0605417-0A BRPI0605417A BRPI0605417A BR PI0605417 A BRPI0605417 A BR PI0605417A BR PI0605417 A BRPI0605417 A BR PI0605417A BR PI0605417 A BRPI0605417 A BR PI0605417A
Authority
BR
Brazil
Prior art keywords
data
optimized
digital television
television transmitter
coding
Prior art date
Application number
BRPI0605417-0A
Other languages
English (en)
Inventor
Kyung Won Kang
Kook Yeon Kwak
Ja Hyuk Koo
Kyung Wook Shin
Yong Hak Suh
Young Jin Hong
Sung Ryong Hong
Original Assignee
Lg Electronics Inc
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 Lg Electronics Inc filed Critical Lg Electronics Inc
Publication of BRPI0605417A publication Critical patent/BRPI0605417A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/015—High-definition television systems
    • 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
    • H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
    • 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
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234327—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by decomposing into layers, e.g. base layer and one or more enhancement layers
    • 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
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2383—Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
    • 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
    • H04N21/4305—Synchronising client clock from received content stream, e.g. locking decoder clock with encoder clock, extraction of the PCR packets
    • 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
    • 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]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Television Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Error Detection And Correction (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

"TRANSMISSOR DE TELEVISãO DIGITAL PARA CODIFICAçãO DE DADOS PRINCIPAIS E OTIMIZADOS E MéTODO PARA CODIFICAçãO DE DADOS PRINCIPAIS E OTIMIZADOS EM UM TRANSMISSOR DE TELEVISãO DIGITAL", prevê um transmissor de televisão digital (DTV) e um método de processamento de dados no transmissor/receptor DTV; no transmissor DTV, um pré-processador pré-processa os dados otimizados através de codificação dos dados otimizados para correção de erro à frente (FEC) e expansão dos dados codificados por FEC; um formatador de pacote gera um ou mais grupos de pacotes de dados otimizados, cada pacote de dados melhorado incluindo os dados otimizados pré-processados e dados conhecidos, onde o formatador de dados adiciona informação de ' burst time' em cada grupo de pacotes de dados otimizados; e, um multiplexador de pacote gera pelo menos um disparo de dados a otimizados através da multiplexação de um ou mais grupos de pacotes de dados otimizados, com pelo menos um pacote de dados principais incluindo os dados principais, cada disparo de dados otimizados incluindo pelo menos um grupo de pacotes de dados otimizados.
BRPI0605417-0A 2005-11-25 2006-11-16 transmissor de televisão digital para codificação de dados principais e otimizados e método para codificação de dados principais e otimizados em um transmissor de televisão digital BRPI0605417A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020050113464A KR101199369B1 (ko) 2005-11-25 2005-11-25 디지털 방송 시스템 및 처리 방법

Publications (1)

Publication Number Publication Date
BRPI0605417A true BRPI0605417A (pt) 2007-09-04

Family

ID=37814344

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0605417-0A BRPI0605417A (pt) 2005-11-25 2006-11-16 transmissor de televisão digital para codificação de dados principais e otimizados e método para codificação de dados principais e otimizados em um transmissor de televisão digital

Country Status (7)

Country Link
US (3) US7756011B2 (pt)
EP (1) EP1791368A1 (pt)
KR (1) KR101199369B1 (pt)
CN (1) CN1984263B (pt)
BR (1) BRPI0605417A (pt)
CA (1) CA2565848C (pt)
MX (1) MXPA06013152A (pt)

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US8542577B2 (en) 2013-09-24
CA2565848A1 (en) 2007-05-25
KR101199369B1 (ko) 2012-11-09
CN1984263B (zh) 2011-08-24
CA2565848C (en) 2011-11-22
CN1984263A (zh) 2007-06-20
US7756011B2 (en) 2010-07-13
EP1791368A1 (en) 2007-05-30
US8072876B2 (en) 2011-12-06
US20070121681A1 (en) 2007-05-31
US20100271557A1 (en) 2010-10-28
US20100239026A1 (en) 2010-09-23
MXPA06013152A (es) 2008-10-15
KR20070055117A (ko) 2007-05-30

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