EP1813106A1 - Procede de controle de l'acces et du decompte de signaux de donnees et de flux de transport numeriques dans des reseaux de distribution a cables - Google Patents

Procede de controle de l'acces et du decompte de signaux de donnees et de flux de transport numeriques dans des reseaux de distribution a cables

Info

Publication number
EP1813106A1
EP1813106A1 EP05807849A EP05807849A EP1813106A1 EP 1813106 A1 EP1813106 A1 EP 1813106A1 EP 05807849 A EP05807849 A EP 05807849A EP 05807849 A EP05807849 A EP 05807849A EP 1813106 A1 EP1813106 A1 EP 1813106A1
Authority
EP
European Patent Office
Prior art keywords
access
coding
signal
transport
network
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.)
Ceased
Application number
EP05807849A
Other languages
German (de)
English (en)
Inventor
Frédéric R. Klein
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.)
KLEIN, FREDERIC R.
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1813106A1 publication Critical patent/EP1813106A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/166—Passage/non-passage of the television signal, e.g. jamming, band suppression
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
    • H04H60/14—Arrangements for conditional access to broadcast information or to broadcast-related services
    • H04H60/21—Billing for the use of broadcast information or broadcast-related information
    • H04H60/22—Billing for the use of broadcast information or broadcast-related information per use
    • 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
    • H04N21/2221—Secondary servers, e.g. proxy server, cable television Head-end being a 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
    • H04N21/238—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]
    • H04N21/40—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
    • H04N21/43—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
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/43607—Interfacing a plurality of external cards, e.g. through a DVB Common Interface [DVB-CI]
    • 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
    • H04N21/6118—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving cable transmission, e.g. using a cable modem
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
    • H04H20/61—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for local area broadcast, e.g. instore broadcast
    • H04H20/63—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for local area broadcast, e.g. instore broadcast to plural spots in a confined site, e.g. MATV [Master Antenna Television]

Definitions

  • the invention relates to a method for blocking and enabling access to digital content, such as Internet streams, television and radio programs or other services, such as bandwidths with digital data streams, via a Jardin ⁇ distribution network for television and radio broadcasting and multimedia services Be made available to participants.
  • digital content such as Internet streams, television and radio programs or other services, such as bandwidths with digital data streams
  • a digital set - top box or a digital receiver or a TV card with built - in CA (Conditional Access) module for decryption or a modem with card reader and card is used for this purpose.
  • EP 0 914 742 B1 describes a decentralized subscriber access system for use in audio and television reception over a cable distribution network, with the aid of which a subscriber activates an intelligent access controller by a set-top box in order to gradually establish a desired frequency range and hence the desired frequency range to be able to unlock the content contained in it.
  • This access controller is located at the end of the home-related supply line, so if necessary in the middle of the house distribution network.
  • This decentralized subscriber switching system also requires a star wiring or manipulation-proof antenna switch socket in the tree network, which limits the application accordingly.
  • the invention is therefore an object of the invention to provide a method of the type mentioned above, with which it is possible to allow an individual subscriber connected to a cable distribution network access to certain digital content and / or services only if he has a special authorization from the network operator received.
  • the invention provides that certain digital contents, referred to hereinafter as "special contents", are provided with a special coding, are fed into the cable network by the network operator, so that the subscriber, who wants to evaluate this particular content, first accesses it Acquisition of a separate authorization by the network operator.
  • special contents certain digital contents
  • the general authorization required for free reception of other contents including the encrypted contents of specific providers (program providers), which only offer encrypted content which is released against separate payment of fees, remains unaffected for certain reasons, for example, for reasons of supply policy.
  • the subscriber receives this separate authorization from the operator of the distribution network and is dependent, for example, on whether he has paid a fee for access to these contents and / or services, or whether he will still be granted (sufficient) credit.
  • the participant enters into a separate contractual relationship with the network operator with regard to the special content, which does not affect a possibly existing contractual relationship with the content or service provider should the latter not be the same as the network operator.
  • the network operator himself determines the subscription charges for the general as well as special contents.
  • digital transport streams for example Intemet streams and those for DAB (audio) and DVB (video) and data signals, altogether marked with (1), are brought in unchanged form to individual transmodulators of a headend (2) and prepared for feeding into a cable distribution network (5).
  • the network operator uses at the headend (2) for the particular data streams or digital contents and programs for which he wants to set an access restriction according to the invention Coding rule (3) from an encoding algorithm (3a) in order to modify the original transport stream, so that it is now sent via a line (4) into the distribution network (5) and thus together with the signals that do not have a Have access barrier, So do not include this coding rule is transmitted to the participants.
  • an individual subscriber then connects a modem or a digital set-top box (6) in order to receive the full offer, it will initially release only those contents whose transport streams have not been modified. Due to the modification of their transport streams, the special contents with access lock are only available to the subscriber if he has an activation authorization.
  • the network operator can put together an arbitrary set of transmodulators with a given number of transport streams to an arbitrary number of program groups with different coding rules in order to enable the subscriber to accept different program categories at different reference prices, thus enabling him to to be reimbursed by the participant for his Signalheran Operationss- and preparation effort.
  • the subscriber In order that the transmitted, original, original transport streams (1) can be made accessible to the subscriber by unlocking the block, the subscriber carries, for example, a CA module or a smart card with the respective decoding rule (7) of the network operator in his modem or its set top box (6), whereby the modification of the transport stream and thus the access barrier are lifted.
  • the subscriber module acquires the CA module or the smart card from the network operator or its subscriber management representative.
  • the digital transport stream (8) is again identical to the original transport stream (1) as if there had been no access blockage.
  • the structure of the modem or the set - top box (6) is known prior art and need not be described here. Special data signals of the aforementioned type as well as free or encrypted signals can thus be made visible / audible in a conventional manner.
  • the box / modem must have at least one common interface (Cl) or a receiving slot for a CA module or a card reader.
  • the network operator can be protected by timely Modification of the coding algorithm (3a) can curb signal and program theft and thus also provide the content provider with additional security to limit piracy and hacking attacks.
  • This coding algorithm (3a) can be installed as software at the headend (2) or from outside z. B. also be transferred there wirelessly. The degree of impairment and thus the effectiveness of the access barrier can also be varied, as well as the algorithm of the coding regulation itself.
  • SMS Subscriber Management Systems
  • Other payment forms by proprietary payment systems can also fulfill these tasks, in the form that the payment will maintain the decoding and fail to pay if not paid.
  • the present invention now comes with a single device per head end, no matter what topology, what size and what number of participants the Ver ⁇ has divided network, which will reduce the technical and economic effort.
  • each network operator of a so-called stand-alone island network has the freedom to individually determine the amount of transmitted data streams, programs and contents, the number of individual program groups and their corresponding subscription prices, and the subscriber has the freedom, in addition to one example low-cost basic service to pay dividend, additional and premium services in any denomination in accordance with price.
  • This demand-oriented offer and billing according to use (pay for use) optimally liberalises the broadband cable service industry and creates a comfortable SeIf service system for the subscriber.
  • simulcrypt applications can be realized with content providers (content providers), which significantly increases security.
  • Access and billing cascades can also be formed if there is a need for a number of operators for the signal acquisition and the signal transfer along the signal path.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

L'invention concerne un procédé de contrôle de l'accès et du décompte de signaux de données et de flux de transport numériques, tels que des flux Internet, des signaux DAB et DVB, dans un réseau de distribution à câbles. Côté fournisseur réseau, le flux de transport d'origine d'au moins un signal numérique (1) est modifié au moyen d'au moins une instruction de codage (3) sur des transmodulateurs d'une zone de tête (2), et le signal modifié (4) est transmis à des modems ou décodeurs (6) par l'intermédiaire du réseau de distribution à câbles (5). Une instruction de décodage (7) complémentaire à l'instruction de codage (3) annule ensuite la modification du flux de transport et donc le blocage d'accès provoqué par l'algorithme de codage (3a), de telle manière que le flux de transport du signal (8) est à nouveau identique à celui du signal d'origine (1). Le fournisseur réseau a ainsi la possibilité d'accorder des autorisations d'accès individuelles pour des offres individuelles de flux de transport et de données et d'effectuer un décompte séparé à cet effet.
EP05807849A 2004-10-19 2005-10-19 Procede de controle de l'acces et du decompte de signaux de donnees et de flux de transport numeriques dans des reseaux de distribution a cables Ceased EP1813106A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200420016235 DE202004016235U1 (de) 2004-10-19 2004-10-19 Zugangs- und Abrechnungskontrolle für digitale Transportströme wie DVB und DAB Signale aus Gemeinschaftsantennenanlagen
PCT/EP2005/011256 WO2006042752A1 (fr) 2004-10-19 2005-10-19 Procede de controle de l'acces et du decompte de signaux de donnees et de flux de transport numeriques dans des reseaux de distribution a cables

Publications (1)

Publication Number Publication Date
EP1813106A1 true EP1813106A1 (fr) 2007-08-01

Family

ID=34072270

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05807849A Ceased EP1813106A1 (fr) 2004-10-19 2005-10-19 Procede de controle de l'acces et du decompte de signaux de donnees et de flux de transport numeriques dans des reseaux de distribution a cables

Country Status (3)

Country Link
EP (1) EP1813106A1 (fr)
DE (1) DE202004016235U1 (fr)
WO (1) WO2006042752A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU8622582A (en) * 1981-07-27 1983-02-03 Austenna Pty. Ltd. Dual carrier scrambler on vision and sound signals
EP0674440A2 (fr) * 1994-03-21 1995-09-27 NOKIA TECHNOLOGY GmbH Procédé de cryptage et de décryptage d'un train de bits contenant une information binaire

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0278514A3 (fr) * 1987-02-12 1991-01-09 Communication Distribution Systems Gmbh Cds Boíte d'exemption pour les abonnées d'un système de communication par câble
US5233652A (en) * 1991-02-19 1993-08-03 At&T Bell Laboratories Selective off-premises jamming for premium CATV service
DE9409198U1 (de) * 1994-06-07 1994-09-01 Wela electronic GmbH, 27726 Worpswede Vorrichtung zum Selektieren von Informationssignalen
FR2739242B1 (fr) * 1995-09-25 1997-10-24 Gemplus Card Int Modem equipe d'un lecteur de carte a puce
FR2749730B1 (fr) * 1996-06-07 1998-08-07 Space Emetteurs Sa Procede de surveillance anti-fraude d'un reseau de distribution de television par cable et reseau de distribution de television par cable mettant en oeuvre ce procede
DE19648418A1 (de) * 1996-07-26 1998-02-05 Ruediger Dipl Ing Klein Dezentrales Teilnehmeranschaltsystem
FR2804272B1 (fr) * 2000-01-25 2003-08-01 Tonna Electronique Systeme de controle d'acces d'un utilisateur a des programmes videos, transcodeur, decodeur et procede de controle d'acces d'un tel systeme
KR20020095202A (ko) * 2000-03-30 2002-12-20 코우액스미디어, 인크. 패시브형 멀티포인트 네트워크를 통한 모뎀 통신을 위한자동 분배 이득 제어 아키텍쳐 및 방법
PT102512A (pt) * 2000-08-31 2002-02-28 Tech4Cable Inc "dispositivo de acesso a sinais de televisao de distribuicao por cabo"
EP1510070A1 (fr) * 2002-05-30 2005-03-02 Xtend Networks Ltd. Systeme et procede pour developper un spectre de transmission catv au moyen de superpositions de spectres haute frequence
US7690022B2 (en) * 2002-10-02 2010-03-30 Ganesh Basawapatna Video distribution system for digital and analog subscribers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU8622582A (en) * 1981-07-27 1983-02-03 Austenna Pty. Ltd. Dual carrier scrambler on vision and sound signals
EP0674440A2 (fr) * 1994-03-21 1995-09-27 NOKIA TECHNOLOGY GmbH Procédé de cryptage et de décryptage d'un train de bits contenant une information binaire

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2006042752A1 *

Also Published As

Publication number Publication date
WO2006042752A1 (fr) 2006-04-27
DE202004016235U1 (de) 2005-01-13

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