HRP20000331A2 - Scrambling unit for a digital transmission system - Google Patents

Scrambling unit for a digital transmission system Download PDF

Info

Publication number
HRP20000331A2
HRP20000331A2 HR20000331A HRP20000331A HRP20000331A2 HR P20000331 A2 HRP20000331 A2 HR P20000331A2 HR 20000331 A HR20000331 A HR 20000331A HR P20000331 A HRP20000331 A HR P20000331A HR P20000331 A2 HRP20000331 A2 HR P20000331A2
Authority
HR
Croatia
Prior art keywords
packet
coding
unit
stream
coding unit
Prior art date
Application number
HR20000331A
Other languages
English (en)
Croatian (hr)
Inventor
Lionel Tranchard
Cristophe Declerck
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 HRP20000331A2 publication Critical patent/HRP20000331A2/hr

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]
    • H04N21/20—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
    • H04N21/23611—Insertion of stuffing data into a multiplex stream, e.g. to obtain a constant bitrate
    • 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
    • H04N21/23608—Remultiplexing multiplex streams, e.g. involving modifying time stamps or remapping the packet identifiers
    • 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
    • H04N21/2389—Multiplex stream processing, e.g. multiplex stream encrypting
    • H04N21/23895—Multiplex stream processing, e.g. multiplex stream encrypting involving multiplex 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]
    • H04N21/20—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
    • H04N21/26613—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 keys in general
    • 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)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Databases & Information Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Communication Control (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
HR20000331A 1997-12-23 1998-12-23 Scrambling unit for a digital transmission system HRP20000331A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP97403150A EP0926894A1 (en) 1997-12-23 1997-12-23 Scrambling unit for a digital transmission system
PCT/IB1998/002139 WO1999033271A1 (en) 1997-12-23 1998-12-23 Scrambling unit for a digital transmission system

Publications (1)

Publication Number Publication Date
HRP20000331A2 true HRP20000331A2 (en) 2000-12-31

Family

ID=8229936

Family Applications (1)

Application Number Title Priority Date Filing Date
HR20000331A HRP20000331A2 (en) 1997-12-23 1998-12-23 Scrambling unit for a digital transmission system

Country Status (17)

Country Link
EP (2) EP0926894A1 (pl)
JP (1) JP2001527350A (pl)
KR (1) KR100666438B1 (pl)
CN (1) CN1174619C (pl)
AU (1) AU1777099A (pl)
BR (1) BR9813618A (pl)
CA (1) CA2311488A1 (pl)
HR (1) HRP20000331A2 (pl)
HU (1) HUP0101152A3 (pl)
ID (1) ID24906A (pl)
IL (1) IL136955A0 (pl)
NO (1) NO20003247L (pl)
PL (1) PL190503B1 (pl)
RU (1) RU2212770C2 (pl)
TR (1) TR200001921T2 (pl)
WO (1) WO1999033271A1 (pl)
ZA (1) ZA9811812B (pl)

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Also Published As

Publication number Publication date
EP0926894A1 (en) 1999-06-30
AU1777099A (en) 1999-07-12
NO20003247L (no) 2000-08-23
IL136955A0 (en) 2001-06-14
WO1999033271A1 (en) 1999-07-01
ID24906A (id) 2000-08-31
PL190503B1 (pl) 2005-12-30
RU2212770C2 (ru) 2003-09-20
ZA9811812B (en) 1999-08-17
TR200001921T2 (tr) 2000-12-21
CA2311488A1 (en) 1999-07-01
EP1040663A1 (en) 2000-10-04
NO20003247D0 (no) 2000-06-21
KR20010033472A (ko) 2001-04-25
BR9813618A (pt) 2000-10-17
HUP0101152A2 (hu) 2001-07-30
HUP0101152A3 (en) 2003-04-28
PL341389A1 (en) 2001-04-09
JP2001527350A (ja) 2001-12-25
CN1174619C (zh) 2004-11-03
KR100666438B1 (ko) 2007-01-09
CN1285114A (zh) 2001-02-21

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