BR9713046A - Mapeamento de canal lógico e composto em uma rede mpeg - Google Patents

Mapeamento de canal lógico e composto em uma rede mpeg

Info

Publication number
BR9713046A
BR9713046A BR9713046-0A BR9713046A BR9713046A BR 9713046 A BR9713046 A BR 9713046A BR 9713046 A BR9713046 A BR 9713046A BR 9713046 A BR9713046 A BR 9713046A
Authority
BR
Brazil
Prior art keywords
service
composite channel
lct
channel
composite
Prior art date
Application number
BR9713046-0A
Other languages
English (en)
Other versions
BR9713046B1 (pt
Inventor
Wailewski
J Anthony
Original Assignee
Scientific Atlanta
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 Scientific Atlanta filed Critical Scientific Atlanta
Publication of BR9713046A publication Critical patent/BR9713046A/pt
Publication of BR9713046B1 publication Critical patent/BR9713046B1/pt

Links

Classifications

    • 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
    • H04N21/47—End-user applications
    • H04N21/482—End-user interface for program selection
    • 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
    • H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/2362—Generation or processing of Service Information [SI]
    • 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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • 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
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4345—Extraction or processing of SI, e.g. extracting service information from an MPEG 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
    • H04N21/4383—Accessing a communication channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/087—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only
    • H04N7/088—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital
    • H04N7/0887—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital for the transmission of programme or channel identifying signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/50—Tuning indicators; Automatic tuning control

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Television Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

<B>MAPEAMENTO DE CANAL LóGICO E COMPOSTO DE UMA REDE MPEG<D> São providas duas estruturas adicionais para adição à informação de Serviço (SI) de Transmissores de Vídeo Digital (DVB) para implementação do Padrão (ISO/IEC 13818-1) de Sistemas MPEG-2: Tabela de Canal Lógico (LCT) e Tabela de Canal Composto (CCT). A LCT proporciona o mapeamento entre um Número de Canal Lógico (LCN) representando um serviço e o fluxo de transporte (TSID) / número de programa (PN) no qual o serviço pode ser encontrado. Entradas LCT podem designar quer seja canais convencionais simples ou Canais Compostos. A LCT contém um Indicador de Canal Composto (CCI), o qual quando ajustado para "1", indica que o canal selecionado é um canal composto. Neste caso, a entrada LCT proporciona o canal sede o Canal Composto, o qual proporciona a CCT para o decodificador de modo que o sintonizador pode ser resintonizado no programa atual designado na CCT para assistência atual. Cada entrada na CCT associa um Número de Canal Composto (CCN) com uma LCN e representa a definição "presente" para o canal composto. Uma LCN simples é utilizada como uma chave para a LCT determinar o ID de fluxo de transporte e número de programa (PN) para os componentes de serviço na forma usual. à medida que o tempo avança, a entrada para um CCN específica mudará; portanto, a CCN é usada como um "ponteiro" para a LCN a qual é o serviço atualmente ativo para o canal composto. Essas tabelas funcionam com definições de serviço MPEG-2, convencionais para decodificar fluxo de transporte de multi-serviço.
BRPI9713046-0A 1996-11-13 1997-11-10 Decodificador e método de extrair informação de serviço para um serviço de dados especifico a partir de um fluxo de dados de faixa ampla método de proporcionar serviços de dados selecionáveis para um usuário e fluxo de dados compreedendo uma pluraridade de pacotes de dados de fluxo de transporte que proporcionam serviços de dados selecionáveis para um usuário BR9713046B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/747,620 US6215530B1 (en) 1995-05-22 1996-11-13 Logical and composite channel mapping in an MPEG network
US08/747,620 1996-11-13
PCT/US1997/020500 WO1998024200A2 (en) 1996-11-13 1997-11-10 Logical and composite channel mapping in an mpeg network

Publications (2)

Publication Number Publication Date
BR9713046A true BR9713046A (pt) 2000-06-13
BR9713046B1 BR9713046B1 (pt) 2014-10-07

Family

ID=25005908

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9713046-0A BR9713046B1 (pt) 1996-11-13 1997-11-10 Decodificador e método de extrair informação de serviço para um serviço de dados especifico a partir de um fluxo de dados de faixa ampla método de proporcionar serviços de dados selecionáveis para um usuário e fluxo de dados compreedendo uma pluraridade de pacotes de dados de fluxo de transporte que proporcionam serviços de dados selecionáveis para um usuário

Country Status (6)

Country Link
US (1) US6215530B1 (pt)
EP (1) EP0938816A1 (pt)
JP (1) JP3443122B2 (pt)
AU (1) AU5507398A (pt)
BR (1) BR9713046B1 (pt)
WO (1) WO1998024200A2 (pt)

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Also Published As

Publication number Publication date
BR9713046B1 (pt) 2014-10-07
JP3443122B2 (ja) 2003-09-02
US6215530B1 (en) 2001-04-10
WO1998024200A3 (en) 1998-08-20
AU5507398A (en) 1998-06-22
EP0938816A4 (pt) 1999-09-08
WO1998024200A2 (en) 1998-06-04
EP0938816A1 (en) 1999-09-01
JP2000511735A (ja) 2000-09-05

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