WO2004023717A3 - Content distribution for multiple digital rights management - Google Patents
Content distribution for multiple digital rights management Download PDFInfo
- Publication number
- WO2004023717A3 WO2004023717A3 PCT/US2003/027774 US0327774W WO2004023717A3 WO 2004023717 A3 WO2004023717 A3 WO 2004023717A3 US 0327774 W US0327774 W US 0327774W WO 2004023717 A3 WO2004023717 A3 WO 2004023717A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- content
- encrypted
- segments
- drm
- rights management
- Prior art date
Links
Classifications
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- 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
- H04N21/4627—Rights management associated to the content
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K1/00—Secret communication
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
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- 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
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234345—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements the reformatting operation being performed only on part of the stream, e.g. a region of the image or a time segment
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- H04N21/23439—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements for generating different versions
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- 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
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- H04N21/254—Management at additional data server, e.g. shopping server, rights management server
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- H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
- H04N21/25808—Management of client data
- H04N21/25833—Management of client data involving client hardware characteristics, e.g. manufacturer, processing or storage capabilities
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- 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]
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- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4331—Caching operations, e.g. of an advertisement for later insertion during playback
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- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
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- 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
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- 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
- H04N21/44055—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 by partially decrypting, e.g. decrypting a video stream that has been partially encrypted
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- 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
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- 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
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- 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
Abstract
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CN038213796A CN1682486B (en) | 2002-09-09 | 2003-09-08 | Content distribution for multiple digital rights management |
CA2498326A CA2498326C (en) | 2002-09-09 | 2003-09-08 | Content distribution for multiple digital rights management |
JP2004534603A JP2005538453A (en) | 2002-09-09 | 2003-09-08 | Content distribution for multiple digital rights management |
AU2003268468A AU2003268468A1 (en) | 2002-09-09 | 2003-09-08 | Content distribution for multiple digital rights management |
EP03749433.3A EP1543650B1 (en) | 2002-09-09 | 2003-09-08 | Content distribution for multiple digital rights management |
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EP (1) | EP1543650B1 (en) |
JP (2) | JP2005538453A (en) |
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CN (2) | CN1682486B (en) |
AU (1) | AU2003268468A1 (en) |
CA (1) | CA2498326C (en) |
WO (1) | WO2004023717A2 (en) |
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WO2004023717A2 (en) | 2004-03-18 |
CA2498326A1 (en) | 2004-03-18 |
US20040049691A1 (en) | 2004-03-11 |
US7242773B2 (en) | 2007-07-10 |
US7151833B2 (en) | 2006-12-19 |
JP2012248201A (en) | 2012-12-13 |
JP2005538453A (en) | 2005-12-15 |
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EP1543650A2 (en) | 2005-06-22 |
EP1543650A4 (en) | 2009-03-04 |
US20040049694A1 (en) | 2004-03-11 |
CN1682486B (en) | 2013-08-21 |
EP1543650B1 (en) | 2016-06-22 |
JP5523513B2 (en) | 2014-06-18 |
CA2498326C (en) | 2012-12-04 |
AU2003268468A1 (en) | 2004-03-29 |
CN1682486A (en) | 2005-10-12 |
US20040049690A1 (en) | 2004-03-11 |
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