BRPI0418609A - transmissão de dados segura através de gerenciamento e controle de titularidade de multicanal - Google Patents

transmissão de dados segura através de gerenciamento e controle de titularidade de multicanal

Info

Publication number
BRPI0418609A
BRPI0418609A BRPI0418609-5A BRPI0418609A BRPI0418609A BR PI0418609 A BRPI0418609 A BR PI0418609A BR PI0418609 A BRPI0418609 A BR PI0418609A BR PI0418609 A BRPI0418609 A BR PI0418609A
Authority
BR
Brazil
Prior art keywords
control
data transmission
multichannel
secure data
data
Prior art date
Application number
BRPI0418609-5A
Other languages
English (en)
Inventor
David Lowell Mcneely
David Emerry Virag
Original Assignee
Thomson Licensing
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 Thomson Licensing filed Critical Thomson Licensing
Publication of BRPI0418609A publication Critical patent/BRPI0418609A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/10—Secret communication by using two signals transmitted simultaneously or successively
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/18523—Satellite systems for providing broadcast service to terrestrial stations, i.e. broadcast satellite service
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00—Digital computers in general; Data processing equipment in general
    • G06F15/16—Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • 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
    • H04N21/25—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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H04N21/42607—Internal components of the client ; Characteristics thereof for processing the incoming bitstream
    • H04N21/4263—Internal components of the client ; Characteristics thereof for processing the incoming bitstream involving specific tuning arrangements, e.g. two tuners
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6143—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via a satellite
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/631—Multimode Transmission, e.g. transmitting basic layers and enhancement layers of the content over different transmission paths or transmitting with different error corrections, different keys or with different transmission protocols
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Astronomy & Astrophysics (AREA)
  • Computer Security & Cryptography (AREA)
  • Theoretical Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

TRANSMISSãO DE DADOS SEGURA ATRAVéS DE GERENCIAMENTO E CONTROLE DE TITULARIDADE DE MULTICANAL Um método de comunicção de dados, tal como dados de áudio/vídeo(a/v), através de vários canais envolve a seleção de dados criptografados. A informação de criptografia é dividida em partes. Os dados criptografados são comunicados por meio de pelo menos um dos vários canais, e pelo menos algumas partes da informação de criptografia são comunicadas através de pelo menos um canal além de um através do qual os dados criptografados são comunicados.Em um sentido mais geral, os dados criptografados são enviados através de um canal, e a informação de criptografia é dividida e enviada através de vários outros canais.
BRPI0418609-5A 2004-03-09 2004-03-09 transmissão de dados segura através de gerenciamento e controle de titularidade de multicanal BRPI0418609A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2004/007122 WO2005099151A1 (en) 2004-03-09 2004-03-09 Secure data transmission via multichannel entitlement management and control

Publications (1)

Publication Number Publication Date
BRPI0418609A true BRPI0418609A (pt) 2007-05-02

Family

ID=35125434

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0418609-5A BRPI0418609A (pt) 2004-03-09 2004-03-09 transmissão de dados segura através de gerenciamento e controle de titularidade de multicanal

Country Status (8)

Country Link
US (1) US7929697B2 (pt)
EP (1) EP1723741B1 (pt)
JP (1) JP2007528668A (pt)
KR (1) KR101055908B1 (pt)
CN (1) CN1926793A (pt)
BR (1) BRPI0418609A (pt)
MX (1) MXPA06010209A (pt)
WO (1) WO2005099151A1 (pt)

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Also Published As

Publication number Publication date
CN1926793A (zh) 2007-03-07
US7929697B2 (en) 2011-04-19
US20070192586A1 (en) 2007-08-16
JP2007528668A (ja) 2007-10-11
WO2005099151A1 (en) 2005-10-20
KR20070022658A (ko) 2007-02-27
MXPA06010209A (es) 2007-04-12
EP1723741A4 (en) 2010-08-25
KR101055908B1 (ko) 2011-08-09
EP1723741B1 (en) 2013-07-10
EP1723741A1 (en) 2006-11-22

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Legal Events

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

Free format text: REFERENTE AS 6A, 7A E 8A ANUIDADES.

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 2158 DE 15/05/2012.