EP1277101A2 - Systeme et procede de distribution de contenu sur un reseau - Google Patents

Systeme et procede de distribution de contenu sur un reseau

Info

Publication number
EP1277101A2
EP1277101A2 EP01928403A EP01928403A EP1277101A2 EP 1277101 A2 EP1277101 A2 EP 1277101A2 EP 01928403 A EP01928403 A EP 01928403A EP 01928403 A EP01928403 A EP 01928403A EP 1277101 A2 EP1277101 A2 EP 1277101A2
Authority
EP
European Patent Office
Prior art keywords
content items
server
network
content
servers
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP01928403A
Other languages
German (de)
English (en)
Other versions
EP1277101A4 (fr
Inventor
John Christopher Park Russell
Todd Avery Outten
Bryan Gentry Spaulding
Scott Jeffrey Sherr
Yair Landau
Jeremy Eli Barnett
Ira Steven Rubenstein
Brian David Lakamp
Douglas Daiseung Chey
Michael R. Arrieta
Harish Mandyam
Andrew Mosson
Mary Abraham
Mary Korman
Thomas M. Rodriguez
Ernesto Brodersohn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Blockbuster Inc
Original Assignee
Movielink LLC
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 Movielink LLC filed Critical Movielink LLC
Publication of EP1277101A2 publication Critical patent/EP1277101A2/fr
Publication of EP1277101A4 publication Critical patent/EP1277101A4/fr
Withdrawn legal-status Critical Current

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 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6125—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via Internet
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
    • G06F21/101—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM] by binding digital rights to specific entities
    • G06F21/1013—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM] by binding digital rights to specific entities to locations
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • G06Q10/10—Office automation; Time management
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q30/00—Commerce
    • G06Q30/06—Buying, selling or leasing transactions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/12—Applying verification of the received information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
    • 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
    • H04N21/21—Server components or server architectures
    • H04N21/218—Source of audio or video content, e.g. local disk arrays
    • H04N21/2181—Source of audio or video content, e.g. local disk arrays comprising remotely distributed storage units, e.g. when movies are replicated over a plurality of video servers
    • 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
    • H04N21/21—Server components or server architectures
    • H04N21/222—Secondary servers, e.g. proxy server, cable television Head-end
    • H04N21/2225—Local VOD servers
    • 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
    • H04N21/231—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
    • H04N21/23116—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion involving data replication, e.g. over plural servers
    • 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
    • H04N21/23473—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving video stream encryption by pre-encrypting
    • 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
    • H04N21/239—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests
    • H04N21/2393—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests involving handling client requests
    • 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
    • H04N21/24—Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth, upstream requests
    • H04N21/2405—Monitoring of the internal components or processes of the server, e.g. server load
    • 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
    • H04N21/254—Management at additional data server, e.g. shopping server, rights management server
    • H04N21/2543—Billing, e.g. for subscription services
    • 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
    • H04N21/258—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
    • H04N21/25841—Management of client data involving the geographical location of the client
    • 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]
    • H04N21/26609—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] using retrofitting techniques, e.g. by re-encrypting the control words used for pre-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
    • H04N21/45—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
    • H04N21/4622—Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications
    • H04N7/17318—Direct or substantially direct transmission and handling of requests
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2137—Time limited access, e.g. to a computer or data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2463/00—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00
    • H04L2463/101—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00 applying security measures for digital rights management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2463/00—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00
    • H04L2463/102—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00 applying security measure for e-commerce
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
    • H04L67/1004—Server selection for load balancing
    • H04L67/1008—Server selection for load balancing based on parameters of servers, e.g. available memory or workload

Definitions

  • Particular embodiments relate to systems and process for efficient delivery of electronic content to recipient processors over a network. Further embodiments relate to such systems and processes which facilitate the delivery of relatively large content items and/or a relatively large number of content items.
  • the edge servers are distributed throughout a region in which the system provides content delivery services to users on UNDs. Edge servers may be located in populated areas, such as in or near large cities. Parent servers may be spaced across the service region to provide support for edge servers. In one embodiment, content items are distributed to and stored on the parent and edge servers, from the main server. A copy of each content item available through the server may be stored by the main server and distributed to and stored by each parent server. The parent servers, in turn, distribute content items to edge servers, pursuant to instructions from the main server or requests from the edge servers. The edge servers need not store copies of all available content items. Instead, edge servers may store some content items, such as specific content items identified by the main server as "hot" content items, but not necessarily all other content items.
  • UNDs may include a Digital Rights Management (DRM) system as part of or in conjunction with a media player tool (or other accessing tool), as described below.
  • DRM Digital Rights Management
  • Functions of the DRM and further functions and operations of the UNDs and servers described herein may be implemented in any suitable manner, including, but not limited to, software running on the associated server or UND, dedicated logic circuitry or other suitable electronics included with or connected to the associated server or UND.
  • the main server 12 interacts with the UNDs 22, to provide a user interface for allowing users to select content items for downloading.
  • the interface comprises a main website accessable over the network 12 (for example, the Internet), to users on UNDs 22.
  • the main server 12 supports the operation of the interface (for example, website), including receiving information, such as requests or selections of content items, from UNDs 22.
  • the media player tool connects to the website to verify and enable the license.
  • the license policy may allow the user to access a content item (for example, view a movie) as many times as the user desires during a predefined window of time, such as a 24-hour period, starting from when the license is enabled.
  • the user or another person may access the content item (for example, movie) again by purchasing and downloading a new license, without downloading the content item (for example, movie) again.
  • the main website When a user purchases a license for a selected content item (for example, movie), the main website also provides the user's UND with a URL (uniform resource locator) that will allow the user to download the encrypted electronic file containing the content item (for example, movie) from an edge server associated with the URL.
  • the user may input the URL to the user 's web browser immediately or wait and download the content item (for example, movie) at a later time.
  • this URL can be provided transparently to the user's web browser to cause the download to begin immediately.
  • the system network may also include one or more special function servers 20, for example, a third party service systems that performs geof ⁇ itermg (determining a geographic location associated with the UND, to restrict access based on geographical location of the user).
  • geofiltering systems may include, for example, but not limited toTraceWareTM by Digital Island.
  • TraceWareTM is a service which maintains a database of Internet Protocol (IP) addresses and physical regions associated with such addresses. Further embodiments of the invention may employ other suitable databases or systems for determining or estimating the geographic location of the user.
  • the main server system 12 may connect to one or more special function servers 20 through the network 10 or through any other suitable means, including, but not limited to, direct connection or connection through a LAN or other network.
  • the main server system 12 also includes a content management system (CMS) server 38, for controlling the distribution of content and instructions to parent servers 14.
  • CMS content management system
  • the control of content items and instructions distributed from the main server 12 to parent servers 14 may be based on instructions received from external sources, such as a source server 18.
  • IP address with a database.
  • the geographic locator system compares the resulting location with rules previously supplied by the main server 12 and responds to the main server with data indicating whether the download is to an allowable location.
  • the main server 12 receives data simply identifying a geographical region associated with the user's IP address from the geographic locator system. Then software associated with the main server 12 determines whether or not a user's IP address is within a geographic region to which the requested content may be delivered, without violating contractual obligations or other restrictions.
  • geographic restrictions are implemented by the system such that only users in the United States are allowed to download content items (for example, movies).
  • the main website will query whether the user would like to purchase a license. In this manner, distribution of copies of the encrypted content files among users and potential users may be encouraged by the service operator, because the content cannot be accessed (the movies cannot be viewed) without a valid purchased license.
  • a content owner or holder (source server) 84 may connect throuhg firewall segment 68, for example, to provide or update content, including content items to be licensed through the server and/or website content, or to provide instructions relating to content items.
  • source server may connect throuhg firewall segment 68, for example, to provide or update content, including content items to be licensed through the server and/or website content, or to provide instructions relating to content items.
  • multiple redundant paths and devices are provided to, for example, improve reliability and or efficiency of the main server system.
  • mulitple firewall layers and other separations of content-end and business-end processes are implemented for improved security. It will be understood that FIGS. 4-10 show one representative example of a main server architecture. Other embodiments of the invention may employ other suitable main server architectures and schemes.
  • the network architecture shown and described above with reference to FIG. 2 includes a single group of interconnected parent servers 14 in the parent server layer.
  • one or more main servers 12 may communicate with multiple groups of connected parent servers, where each group includes a primary parent server 14a and at least one secondary parent server 14b, as shown in FIG. 11.
  • the network architecture embodiment shown in FIG. 2 includes three server layers comprising a main server layer, a parent server layer and an edge server layer, other embodiments may employ more than three layers.
  • the network may include multiple layers of parent servers 14, as shown in FIG. 12, wherein a first parent server layer 90 may comprise a plurality of parent servers 14, each of which services one or more parent servers in a second parent server layer 92.
  • a library of multiple encrypted movies may be placed on a CD-ROM style disc.
  • various system and process embodiments according to the present present invention may be employed to provide a content owner or holder with a mechanism for allowing users to access the content through a network. While a preferred example model for the system and process is a movie rental system for downloading movie files to customers across the Internet, other embodiments may involve delivery of other types of content including, but not limited to, music files, still image files, game software, or other software or data. Moreover, other embodiments may employ other wide area or local area networks. Thus, the references to movie files and movie information in the above-described representative examples do not limit the inention to that context of use. Aspects of the invention described above may be employed in the delivery, rental, sale or promotion of other types of content over a network.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Databases & Information Systems (AREA)
  • Business, Economics & Management (AREA)
  • Computer Security & Cryptography (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Strategic Management (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • General Business, Economics & Management (AREA)
  • Entrepreneurship & Innovation (AREA)
  • Marketing (AREA)
  • Software Systems (AREA)
  • Finance (AREA)
  • Accounting & Taxation (AREA)
  • Computing Systems (AREA)
  • Economics (AREA)
  • Human Resources & Organizations (AREA)
  • Operations Research (AREA)
  • Data Mining & Analysis (AREA)
  • Computer Graphics (AREA)
  • Quality & Reliability (AREA)
  • Tourism & Hospitality (AREA)
  • Development Economics (AREA)
  • Technology Law (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Information Transfer Between Computers (AREA)
  • Storage Device Security (AREA)
  • Cephalosporin Compounds (AREA)
  • Television Signal Processing For Recording (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Television Systems (AREA)
EP01928403A 2000-04-07 2001-04-06 Systeme et procede de distribution de contenu sur un reseau Withdrawn EP1277101A4 (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US19587000P 2000-04-07 2000-04-07
US195870P 2000-04-07
US60380500A 2000-06-26 2000-06-26
US603805 2000-06-26
US27344401P 2001-03-05 2001-03-05
US273444P 2001-03-05
PCT/US2001/011452 WO2001077783A2 (fr) 2000-04-07 2001-04-06 Systeme et procede de distribution de contenu sur un reseau

Publications (2)

Publication Number Publication Date
EP1277101A2 true EP1277101A2 (fr) 2003-01-22
EP1277101A4 EP1277101A4 (fr) 2005-07-20

Family

ID=27393522

Family Applications (2)

Application Number Title Priority Date Filing Date
EP01928403A Withdrawn EP1277101A4 (fr) 2000-04-07 2001-04-06 Systeme et procede de distribution de contenu sur un reseau
EP01926726A Expired - Lifetime EP1277305B1 (fr) 2000-04-07 2001-04-06 Systeme securise d'octroi de licence concernant un contenu numerique et procede associe

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP01926726A Expired - Lifetime EP1277305B1 (fr) 2000-04-07 2001-04-06 Systeme securise d'octroi de licence concernant un contenu numerique et procede associe

Country Status (7)

Country Link
EP (2) EP1277101A4 (fr)
JP (2) JP4920850B2 (fr)
AT (1) ATE525824T1 (fr)
AU (5) AU2001247944A1 (fr)
CA (2) CA2405478C (fr)
HK (2) HK1052998A1 (fr)
WO (3) WO2001078304A1 (fr)

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CA2405478C (fr) 2010-07-06
CA2405478A1 (fr) 2001-10-18
AU2001255264B2 (en) 2006-11-09
ATE525824T1 (de) 2011-10-15
CA2405489A1 (fr) 2001-10-18
WO2001078303A1 (fr) 2001-10-18
CA2405489C (fr) 2012-07-03
AU2001247944A1 (en) 2001-10-23
WO2001078304A1 (fr) 2001-10-18
AU2001253243B2 (en) 2007-02-08
EP1277305A1 (fr) 2003-01-22
JP2004507124A (ja) 2004-03-04
WO2001077783A3 (fr) 2002-03-21
JP2003532178A (ja) 2003-10-28
HK1052998A1 (zh) 2003-10-03
AU5526401A (en) 2001-10-23
JP4920850B2 (ja) 2012-04-18
EP1277305B1 (fr) 2011-09-21
AU5324301A (en) 2001-10-23
HK1053027A1 (zh) 2003-10-03
EP1277305A4 (fr) 2005-11-09

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