ES2192438A1 - A distribution system - Google Patents

A distribution system

Info

Publication number
ES2192438A1
ES2192438A1 ES200050019A ES200050019A ES2192438A1 ES 2192438 A1 ES2192438 A1 ES 2192438A1 ES 200050019 A ES200050019 A ES 200050019A ES 200050019 A ES200050019 A ES 200050019A ES 2192438 A1 ES2192438 A1 ES 2192438A1
Authority
ES
Spain
Prior art keywords
data
dvb
unit
video channels
subscribers
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.)
Granted
Application number
ES200050019A
Other languages
Spanish (es)
Other versions
ES2192438B1 (en
Inventor
Puay Kia Sim
Papa John Domenich Del
Erich Stumpf
Leigh Francis Fiddes
Peter Andrew Burr
Alexander Gontmakher
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.)
NEC Australia Pty Ltd
Original Assignee
NEC Australia Pty Ltd
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 NEC Australia Pty Ltd filed Critical NEC Australia Pty Ltd
Publication of ES2192438A1 publication Critical patent/ES2192438A1/en
Application granted granted Critical
Publication of ES2192438B1 publication Critical patent/ES2192438B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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]
    • H04N21/20—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
    • H04N21/21—Server components or server architectures
    • H04N21/222—Secondary servers, e.g. proxy server, cable television Head-end
    • 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
    • H04N21/236—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
    • H04N21/23614—Multiplexing of additional data and video streams
    • 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]
    • H04N21/60—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
    • 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
    • H04N21/643—Communication protocols
    • H04N21/64307—ATM
    • 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
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/835—Generation of protective data, e.g. certificates
    • H04N21/8355—Generation of protective data, e.g. certificates involving usage data, e.g. number of copies or viewings allowed
    • 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
    • H04N7/17345—Control of the passage of the selected programme
    • H04N7/17363—Control of the passage of the selected programme at or near the user terminal

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

A distribution switch for a local exchange, including an access unit for switching video channels transmitted to subscribers in response to channel requests received from subscribers, and a control unit for controlling switching of the channels by the access unit in accordance with stored conditional access data. The conditional access data includes contact description data for the video channels and entitlement data for the subscribers, which is compared by the control unit for the channel requests. The switch may include a DVB interface unit for receiving DVB signals, extracting the video channels from the DVB signals, and multiplexing the video channels onto a data path for the access unit. The DVB interface unit can extract the conditional access data from the DVB signals.
ES200050019A 1997-09-02 1998-09-02 DISTRIBUTION SWITCH FOR A LOCAL CENTER. Expired - Fee Related ES2192438B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPO8942 1997-09-02
AUPO8942A AUPO894297A0 (en) 1997-09-02 1997-09-02 A distribution system

Publications (2)

Publication Number Publication Date
ES2192438A1 true ES2192438A1 (en) 2003-10-01
ES2192438B1 ES2192438B1 (en) 2005-02-16

Family

ID=3803228

Family Applications (1)

Application Number Title Priority Date Filing Date
ES200050019A Expired - Fee Related ES2192438B1 (en) 1997-09-02 1998-09-02 DISTRIBUTION SWITCH FOR A LOCAL CENTER.

Country Status (4)

Country Link
CN (1) CN1273745A (en)
AU (1) AUPO894297A0 (en)
ES (1) ES2192438B1 (en)
WO (1) WO1999012353A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001128138A (en) * 1999-10-28 2001-05-11 Fujitsu Ltd Catv system, and catv center equipment and subscriber terminal equipment used in this system
US7210162B2 (en) 2000-12-27 2007-04-24 Koninklijke Philips Electronics N.V. DVB-ASI signal inverting adapter and system
GB2405567B (en) * 2003-08-27 2007-01-10 Pccw Hkt Datacom Services Ltd Digital multicast system
US20050125420A1 (en) * 2003-12-03 2005-06-09 Allen Tsz-Chiu Wong System and method of operating the system that prevents multiple channels from continuously being sent to the same set top box
GB2422754B (en) * 2005-01-27 2007-04-04 Pccw Hkt Datacom Services Ltd Digital multicast system
US9225698B2 (en) * 2005-05-12 2015-12-29 Nokia Technologies Oy Fine grain rights management of streaming content

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0425145A2 (en) * 1989-10-23 1991-05-02 AT&T Corp. Method and apparatus for providing real-time switching of high bandwidth transmission channels
EP0431816A1 (en) * 1989-12-04 1991-06-12 Cabletime Limited Cable television networks
WO1993006692A1 (en) * 1991-09-27 1993-04-01 Bell Atlantic Network Services, Inc. Pstn architecture for video-on-demand services

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2938611B2 (en) * 1991-05-14 1999-08-23 富士通株式会社 TV signal exchange system
US5528281A (en) * 1991-09-27 1996-06-18 Bell Atlantic Network Services Method and system for accessing multimedia data over public switched telephone network
US5329572A (en) * 1992-09-24 1994-07-12 At&T Bell Laboratories Dial-up switching and transmission of broadband communication channels through a local exchange
US5583561A (en) * 1994-06-07 1996-12-10 Unisys Corporation Multi-cast digital video data server using synchronization groups
US5751338A (en) * 1994-12-30 1998-05-12 Visionary Corporate Technologies Methods and systems for multimedia communications via public telephone networks

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0425145A2 (en) * 1989-10-23 1991-05-02 AT&T Corp. Method and apparatus for providing real-time switching of high bandwidth transmission channels
EP0431816A1 (en) * 1989-12-04 1991-06-12 Cabletime Limited Cable television networks
WO1993006692A1 (en) * 1991-09-27 1993-04-01 Bell Atlantic Network Services, Inc. Pstn architecture for video-on-demand services
US5410343A (en) * 1991-09-27 1995-04-25 Bell Atlantic Network Services, Inc. Video-on-demand services using public switched telephone network

Also Published As

Publication number Publication date
ES2192438B1 (en) 2005-02-16
AUPO894297A0 (en) 1997-09-25
WO1999012353A1 (en) 1999-03-11
CN1273745A (en) 2000-11-15

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