BR9907877A - Gravação de dados digitais amontoados - Google Patents

Gravação de dados digitais amontoados

Info

Publication number
BR9907877A
BR9907877A BR9907877-5A BR9907877A BR9907877A BR 9907877 A BR9907877 A BR 9907877A BR 9907877 A BR9907877 A BR 9907877A BR 9907877 A BR9907877 A BR 9907877A
Authority
BR
Brazil
Prior art keywords
digital data
heaped
recording
digital
control word
Prior art date
Application number
BR9907877-5A
Other languages
English (en)
Inventor
Michel Mallard
Christian Benardeau
Original Assignee
Canal Plus Sa
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 Canal Plus Sa filed Critical Canal Plus Sa
Publication of BR9907877A publication Critical patent/BR9907877A/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]
    • H04N21/60—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
    • H04N21/633—Control signals issued by server directed to the network components or client
    • H04N21/6332—Control signals issued by server directed to the network components or client directed to client
    • H04N21/6334—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key
    • H04N21/63345—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key by transmitting keys
    • 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, manipulating MPEG-4 scene graphs
    • H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 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]
    • H04N21/40—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
    • H04N21/418—External card to be used in combination with the client device, e.g. for conditional access
    • H04N21/4181—External card to be used in combination with the client device, e.g. for conditional access for conditional access
    • 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
    • H04N21/418—External card to be used in combination with the client device, e.g. for conditional access
    • H04N21/4185—External card to be used in combination with the client device, e.g. for conditional access for payment
    • 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
    • H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
    • 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, rendering scenes according to MPEG-4 scene graphs
    • H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 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
    • H04N21/43—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, rendering scenes according to MPEG-4 scene graphs
    • H04N21/4408—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving video stream encryption, e.g. re-encrypting a decrypted video stream for redistribution in a home network
    • 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]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/81—Monomedia components thereof
    • H04N21/8106—Monomedia components thereof involving special audio data, e.g. different tracks for different languages
    • H04N21/8113—Monomedia components thereof involving special audio data, e.g. different tracks for different languages comprising music, e.g. song in MP3 format
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
    • H04N7/163—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing by receiver means only
    • 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
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91357—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal
    • H04N2005/91364—Television signal processing therefor for scrambling ; for copy protection by modifying the video signal the video signal being scrambled
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • H04N5/775—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television receiver

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Storage Device Security (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Communication Control (AREA)
  • Time Recorders, Dirve Recorders, Access Control (AREA)
  • Navigation (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

Resumo da Patente de Invenção <B>"GRAVAçãO DE DADOS DIGITAIS AMONTOADOS"<D>. Um sistema para transmissão e gravação de dados digitais compreendendo um meio de transmissão (6), adaptado para preparar e transmitir dados digitais amontoados com pelo menos uma palavra de controle criptografada, e um dispositivo de gravação digital (41), adaptado para receber e gravar os dados digitais amontoados e a palavra de controle criptografada em um suporte digital (43), o dispositivo de gravação digital (41) incluindo ainda um meio de controle de acesso (42), adaptado para descriptografar a palavra de controle e, depois, desamontoar os dados digitais durante a reprodução. A presente invenção é particularmente, mas não exclusivamente, adaptada para a transmissão de dados de áudio amontoados a serem gravados em uma leitora de minidisco (41).
BR9907877-5A 1998-02-13 1999-02-12 Gravação de dados digitais amontoados BR9907877A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP98400344A EP0936774A1 (en) 1998-02-13 1998-02-13 Recording of scrambled digital data
PCT/IB1999/000328 WO1999041874A1 (en) 1998-02-13 1999-02-12 Recording of scrambled digital data

Publications (1)

Publication Number Publication Date
BR9907877A true BR9907877A (pt) 2000-10-31

Family

ID=8235272

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9907877-5A BR9907877A (pt) 1998-02-13 1999-02-12 Gravação de dados digitais amontoados

Country Status (20)

Country Link
US (2) USRE42044E1 (pt)
EP (2) EP0936774A1 (pt)
JP (1) JP2002503919A (pt)
KR (1) KR100607576B1 (pt)
CN (1) CN1272930C (pt)
AT (1) ATE258349T1 (pt)
AU (1) AU749013B2 (pt)
BR (1) BR9907877A (pt)
CA (1) CA2318879A1 (pt)
DE (1) DE69914306T2 (pt)
ES (1) ES2214840T3 (pt)
HR (1) HRP20000486A2 (pt)
HU (1) HUP0101456A3 (pt)
ID (1) ID26101A (pt)
IL (1) IL137638A0 (pt)
NO (1) NO20004062L (pt)
PL (1) PL342261A1 (pt)
TR (1) TR200002350T2 (pt)
WO (1) WO1999041874A1 (pt)
ZA (2) ZA991122B (pt)

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CA2318879A1 (en) 1999-08-19
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ES2214840T3 (es) 2004-09-16
ID26101A (id) 2000-11-23
DE69914306T2 (de) 2004-11-25
ZA991122B (en) 1999-09-30
KR20010040908A (ko) 2001-05-15
ZA991123B (en) 1999-08-12
EP1055305B1 (en) 2004-01-21
EP0936774A1 (en) 1999-08-18
HUP0101456A3 (en) 2003-05-28
NO20004062L (no) 2000-10-13
AU749013B2 (en) 2002-06-13
CN1305674A (zh) 2001-07-25
WO1999041874A1 (en) 1999-08-19
US6714650B1 (en) 2004-03-30
USRE42044E1 (en) 2011-01-18
DE69914306D1 (de) 2004-02-26
HUP0101456A2 (hu) 2001-09-28
ATE258349T1 (de) 2004-02-15
KR100607576B1 (ko) 2006-08-01
AU2296499A (en) 1999-08-30
JP2002503919A (ja) 2002-02-05
HRP20000486A2 (en) 2001-02-28
NO20004062D0 (no) 2000-08-11
TR200002350T2 (tr) 2001-01-22
IL137638A0 (en) 2001-10-31
CN1272930C (zh) 2006-08-30

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