BR9712999A - Controle para fluxo de dados de transporte global. - Google Patents

Controle para fluxo de dados de transporte global.

Info

Publication number
BR9712999A
BR9712999A BR9712999-2A BR9712999A BR9712999A BR 9712999 A BR9712999 A BR 9712999A BR 9712999 A BR9712999 A BR 9712999A BR 9712999 A BR9712999 A BR 9712999A
Authority
BR
Brazil
Prior art keywords
control
transport
data flow
data
transport data
Prior art date
Application number
BR9712999-2A
Other languages
English (en)
Inventor
Anthony J Wasilewski
William B Thatcher
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 BR9712999A publication Critical patent/BR9712999A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence
    • 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
    • H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption
    • 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]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H04N21/26606—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel for generating or managing entitlement messages, e.g. Entitlement Control Message [ECM] or Entitlement Management Message [EMM]
    • 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
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream decryption
    • 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
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4623—Processing of entitlement messages, e.g. ECM [Entitlement Control Message] or EMM [Entitlement Management Message]

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

<B>CONTROLE PARA FLUXO DE DADOS DE TRANSPORTE GLOBAL <D>. Dados de vídeo e áudio preparados na forma de um fluxo elementar em pacote tento um cabeçalho, um selo de tempo de apresentação, e o próprio vídeo. O Fluxo elementar em pacote é alocado na seção de carga de um ou mais pacotes de transporte. Os pacotes de transporte têm normalmente 188 bits de comprimento nos mesmos e incluem um bloco de sincronização e dados de pefixo seguidos pelos dados de carga paga. O multiplex/ dispositivo de criptografar (64) combina pacotes de transporte.
BR9712999-2A 1996-11-12 1997-10-28 Controle para fluxo de dados de transporte global. BR9712999A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/745,483 US5937067A (en) 1996-11-12 1996-11-12 Apparatus and method for local encryption control of a global transport data stream
PCT/US1997/019890 WO1998021852A1 (en) 1996-11-12 1997-10-28 Control for a global transport data stream

Publications (1)

Publication Number Publication Date
BR9712999A true BR9712999A (pt) 2000-01-25

Family

ID=24996883

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9712999-2A BR9712999A (pt) 1996-11-12 1997-10-28 Controle para fluxo de dados de transporte global.

Country Status (7)

Country Link
US (1) US5937067A (pt)
EP (1) EP1023795B1 (pt)
JP (2) JP3700982B2 (pt)
AU (1) AU7182398A (pt)
BR (1) BR9712999A (pt)
DE (1) DE69738628T2 (pt)
WO (1) WO1998021852A1 (pt)

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Also Published As

Publication number Publication date
JP2000516422A (ja) 2000-12-05
EP1023795A4 (en) 2006-08-16
JP2004312772A (ja) 2004-11-04
DE69738628T2 (de) 2009-05-28
AU7182398A (en) 1998-06-03
JP3978441B2 (ja) 2007-09-19
EP1023795A1 (en) 2000-08-02
JP3700982B2 (ja) 2005-09-28
EP1023795B1 (en) 2008-04-09
DE69738628D1 (de) 2008-05-21
US5937067A (en) 1999-08-10
WO1998021852A1 (en) 1998-05-22

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B08F Application fees: application dismissed [chapter 8.6 patent gazette]