FR2848764A1 - Paying digital television signal access controlling procedure, involves emitting messages having contents for monitoring allocation of rights, and enabling additional offer of service/program to subscriber based on users profile - Google Patents
Paying digital television signal access controlling procedure, involves emitting messages having contents for monitoring allocation of rights, and enabling additional offer of service/program to subscriber based on users profile Download PDFInfo
- Publication number
- FR2848764A1 FR2848764A1 FR0215978A FR0215978A FR2848764A1 FR 2848764 A1 FR2848764 A1 FR 2848764A1 FR 0215978 A FR0215978 A FR 0215978A FR 0215978 A FR0215978 A FR 0215978A FR 2848764 A1 FR2848764 A1 FR 2848764A1
- Authority
- FR
- France
- Prior art keywords
- messages
- subscriber
- program
- rights
- offer
- 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.)
- Pending
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]
- H04N21/40—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
- H04N21/4623—Processing of entitlement messages, e.g. ECM [Entitlement Control Message] or EMM [Entitlement Management Message]
-
- 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]
- H04N21/20—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
- H04N21/25866—Management of end-user data
- H04N21/25891—Management of end-user data being end-user preferences
-
- 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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/47211—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting pay-per-view content
-
- 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
- H04N21/633—Control signals issued by server directed to the network components or client
- H04N21/6332—Control signals issued by server directed to the network components or client directed to client
- 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
- H04N21/63345—Control signals issued by server directed to the network components or client directed to client for authorisation, e.g. by transmitting a key by transmitting keys
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
- H04N7/163—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing by receiver means only
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
- H04N7/165—Centralised control of user terminal ; Registering at central
-
- 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
Abstract
Description
PROCEDE DE CONTROLE D'ACCES EN TELEVISION NUMERIQUE PAYANTEMETHOD FOR CONTROLLING ACCESS IN PAID DIGITAL TELEVISION
DESCRIPTIONDESCRIPTION
DOMAINE TECHNIQUETECHNICAL AREA
La présente invention concerne un procédé de contrôle d'accès dans le domaine de la télévision numérique payante. The present invention relates to an access control method in the field of digital pay television.
ETAT DE LA TECHNIQUE ANTERIEURESTATE OF THE PRIOR ART
Les techniques utilisées en télévision payante sont basées sur deux mécanismes indépendants: d'une part sur un brouillage/cryptage des signaux vidéo et/ou audio, d'autre part sur une fonction d'allocation 15 de droits commerciaux qui sont transmis comme des messages sécurisés à un boîtier de débrouillage (avec accès de contrôle). Le cryptage peut être appliqué aisément sur un flot de bits numérique. Tous les bits peuvent être cryptés en utilisant par exemple un 20 chiffrage par blocs. Le brouillage est utilisé pour des émissions analogiques. En utilisant un tel brouillage le format du signal est changé, les signaux de synchronisation sont supprimés et transmis séparément sous une forme cryptée. Le signal audio peut être 25 converti en un signal numérique puis crypté. Le signal audio numérique crypté peut être inséré dans le signal vidéo. Les données transmises sont brouillées ou cryptées en utilisant un mot de contrôle (CW) ou une 30 clé. Le mot de contrôle ou la clé changent après une SP 22136 DB courte période. Pour envoyer de nouvelles clés à la station de réception abonné, des messages ECM de contrôle d'allocation de droits ("Entitlement Control Messages") et des messages EMM de gestion d'allocation 5 de droits ("Entitlement Management Messages") sont utilisés. The techniques used in pay television are based on two independent mechanisms: on the one hand on scrambling / encryption of video and / or audio signals, on the other hand on an allocation function of commercial rights which are transmitted as messages secured to a descrambling unit (with control access). Encryption can be easily applied to a digital bit stream. All bits can be encrypted using, for example, block encryption. Interference is used for analog broadcasts. By using such scrambling the signal format is changed, the synchronization signals are suppressed and transmitted separately in encrypted form. The audio signal can be converted to a digital signal and then encrypted. The encrypted digital audio signal can be inserted into the video signal. The transmitted data is scrambled or encrypted using a control word (CW) or a key. The control word or key changes after a short period of time SP 22136 DB. To send new keys to the subscriber receiving station, Entitlement Control Messages (ECM) and Entitlement Management Messages (EMM) are used .
Ces deux messages ECM et EMM peuvent être envoyés au travers de la station de réception abonné à une carte à puce. These two messages ECM and EMM can be sent through the receiving station subscribed to a smart card.
Les messages ECM contiennent des informations qui permettent à la station de réception abonné de débrouiller les signaux vidéo et/ou audio. ECM messages contain information that allows the subscriber receiving station to manage the video and / or audio signals.
Les données de débrouillage sont retournées à celle-ci sous une forme qui ne permet le débrouillage que si 15 l'utilisateur est autorisé à accéder au programme de télévision en cours. Lorsqu'un utilisateur est représenté par une carte à puce, l'autorisation d'accès est indiquée par des données d'allocation de droits ("entitlement data") mémorisées dans la carte. The scrambling data is returned thereto in a form which allows scrambling only if the user is authorized to access the current television program. When a user is represented by a smart card, access authorization is indicated by entitlement data stored in the card.
Les messages EMM contiennent des informations qui permettent de mettre à jour les données d'allocation de droits de l'utilisateur, par exemple en modifiant les données mémorisées dans la carte à puce. EMM messages contain information which makes it possible to update the rights allocation data of the user, for example by modifying the data stored in the smart card.
Les messages ECM et EMM ont un champ de signature numérique qui assure l'intégrité du message (par exemple un code de Hash). Ceci évite aux utilisateurs de pouvoir modifier le contenu de leurs messages. Un message ECM est émis avec le signal brouillé transmis. Il comprend trois champs. Le premier SP 22136 DB champ contient les paramètres d'accès. Ces paramètres définissent les conditions dans lesquelles l'accès à un programme de télévision est permis. Ce champ rend, par exemple, possibles une appréciation parentale (un code 5 PIN additionnel est alors requis par le décodeur) et une occultation géographique (un film peut n'être disponible dans tous les pays européen). Le second champ contient un mot de contrôle sous forme cryptée. ECM and EMM messages have a digital signature field which ensures the integrity of the message (for example a hash code). This prevents users from being able to modify the content of their messages. An ECM message is sent with the scrambled signal transmitted. It includes three fields. The first SP 22136 DB field contains the access parameters. These parameters define the conditions under which access to a television program is permitted. This field makes, for example, possible a parental assessment (an additional 5 PIN code is then required by the decoder) and a geographic occultation (a film may not be available in all European countries). The second field contains a control word in encrypted form.
Le dernier champ contient un contrôle d'intégrité des 10 données. The last field contains a data integrity check.
Un message EMM contient usuellement quatre champs. Chaque message EMM débute avec un champ adresse pour sélectionner un (des) récepteur(s). Il y a deux modes d'adressage, l'un pour une station individuelle 15 et l'autre pour un groupe de telles stations. Le second champ contient une allocation de droits pour un utilisateur donné. Le troisième champ contient les clés de service sous forme cryptée. Le dernier champ contient un contrôle d'intégrité des données. Les 20 messages EMM peuvent aussi être utilisés pour envoyer une commande au décodeur. L'émission de messages EMM est généralement le résultat d'une requête explicite de l'utilisateur au fournisseur de service. Ces messages sont en général individuels. Les messages EMM ne sont 25 pas émis de façon synchrone avec le service de télévision auquel ils s'appliquent. Ils sont transmis à l'avance afin de permettre l'accès à un programme donné d'un utilisateur autorisé. N'importe quel réseau peut être utilisé pour transmettre ces messages EMM au 30 récepteur: modem, courrier ou radiodiffusion. An EMM message usually contains four fields. Each EMM message begins with an address field to select a receiver (s). There are two addressing modes, one for an individual station and the other for a group of such stations. The second field contains an allocation of rights for a given user. The third field contains the service keys in encrypted form. The last field contains a data integrity check. The 20 EMM messages can also be used to send a command to the decoder. The emission of EMM messages is generally the result of an explicit request from the user to the service provider. These messages are generally individual. EMM messages are not transmitted synchronously with the television service to which they apply. They are transmitted in advance to allow access to a given program by an authorized user. Any network can be used to transmit these EMM messages to the receiver: modem, mail or broadcast.
SP 22136 DB Pour augmenter la probabilité qu'un message EMM a été reçu par l'utilisateur, pour renouveler une souscription par exemple, celui-ci est envoyé plusieurs fois. Les messages EMM sont ainsi organisés 5 cycliquement selon une période donnée pour l'émission. SP 22136 DB To increase the probability that an EMM message has been received by the user, for example to renew a subscription, it is sent several times. The EMM messages are thus organized cyclically according to a given period for the transmission.
La durée d'une telle période est le paramètre principal pour déterminer le temps maximum à attendre pour obtenir une allocation de droit pour un utilisateur qui a coupé sa station de réception pendant une longue 10 durée. The duration of such a period is the main parameter for determining the maximum time to wait for obtaining a right allocation for a user who has shut down his receiving station for a long time.
Un article de l'art connu, intitulé "Functional model of a conditional access system" (8301 EBU Review Technical, 1995, n0266), décrit un modèle fonctionnel de système d'accès conditionnel pour une 15 utilisation en télévision numérique. Un tel système d'accès conditionnel comprend une combinaison de brouillage et de cryptage pour éviter toute réception non autorisée, le brouillage permettant de rendre les images, le son et les données non intelligibles, le 20 cryptage protégeant les clés secrètes qui ont été transmises avec le signal brouillé afin de permettre au débrouilleur de fonctionner. Après le débrouillage, tout défaut sur les images ou le son doit être imperceptible, c'est-à-dire que ce système d'accès 25 conditionnel doit être transparent. An article in the known art, entitled "Functional model of a conditional access system" (8301 EBU Review Technical, 1995, n0266), describes a functional model of conditional access system for use in digital television. Such a conditional access system includes a combination of scrambling and encryption to prevent unauthorized reception, the scrambling making images, sound and data unintelligible, the encryption protecting the secret keys which have been transmitted with the scrambled signal to allow the descrambler to operate. After unscrambling, any defect in the images or the sound must be imperceptible, that is to say that this conditional access system must be transparent.
La génération, la transmission et l'utilisation de messages de gestion d'allocation de droits (EMMS) par le système d'autorisation abonné sont illustrés sur la figure unique. The generation, transmission and use of rights allocation management messages (EMMS) by the subscriber authorization system are illustrated in the single figure.
Ce système d'autorisation d'abonné 10 (SAS ou "Subscriber Autorisation System) ainsi qu'un SP 22136 DB générateur Il de mot de contrôle (CW)sont reliés à une station d'émission d'opérateur 12, chacun via un circuit de cryptage 13 et 14. This subscriber authorization system 10 (SAS or "Subscriber Authorization System) as well as a control word generator (CW) SP 22136 DB II are connected to an operator transmission station 12, each via a circuit encryption 13 and 14.
Cette station d'émission d'opérateur 12 5 reçoit des signaux image I, son S et données D qui transitent successivement au travers d'un multiplexeur 15, d'un brouilleur 16, d'un modulateur 17 et d'un émetteur 18. This operator transmitting station 12 5 receives image signals I, sound S and data D which pass successively through a multiplexer 15, a jammer 16, a modulator 17 and a transmitter 18.
A la réception des signaux émis par ledit 10 émetteur 18 et transmis, par exemple, par l'intermédiaire d'un satellite 20, une station de réception abonné 21, qui comprend successivement un récepteur 22, un démodulateur 23, un débrouilleur 24, un démultiplexeur 25, délivre des signaux image I', son 15 S', et données D'. On receiving the signals transmitted by said transmitter 18 and transmitted, for example, via a satellite 20, a subscriber reception station 21, which successively comprises a receiver 22, a demodulator 23, a descrambler 24, a demultiplexer 25, delivers image signals I ', sound 15 S', and data D '.
Un sous-système d'accès conditionnel, par exemple une carte à puce 26, qui comprend deux circuits de décryptage 27 et 28 et un processeur de sécurité 29 (clés secrètes) est relié à cette station de réception 20 abonné 21. A conditional access subsystem, for example a smart card 26, which comprises two decryption circuits 27 and 28 and a security processor 29 (secret keys) is connected to this reception station 20 subscriber 21.
Le débrouillage nécessite de posséder un débrouilleur, un circuit de décryptage et une clé service courante. Le décryptage nécessite l'utilisation de messages de gestion d'allocation de droits (EMM) 25 pour le programme courant, qui utilise usuellement des clés secrètes mémorisées dans la carte à puce 26. Scrambling requires having a scrambler, a decryption circuit and a current service key. Decryption requires the use of rights allocation management messages (EMM) 25 for the current program, which usually uses secret keys stored in the smart card 26.
Dans le domaine de la télévision numérique un mode de consommation à la demande peut être proposé aux abonnés. Ce mode de consommation permet de 30 visualiser un service, par exemple une séance de cinéma, en mode abonnement avec une réservation de SP 22136 DB séance ou un fonctionnement de type "impulsive pay per view/pay per time" (paiement pour voir/paiement pour une certaine durée impulsifs). In the field of digital television, a consumption mode on demand can be offered to subscribers. This consumption mode makes it possible to view a service, for example a cinema screening, in subscription mode with a reservation of SP 22136 DB screening or an operation of the "impulsive pay per view / pay per time" type (payment to see / payment impulsive duration).
Mais un tel mode de consommation ne permet 5 pas de faire des offres promotionnelles directement chez un abonné, ni même d'autoriser un service de façon ciblée, par exemple voir un programme donné pendant une certaine fenêtre de temps, en fonction du profil d'un abonné déterminé, de manière à cibler une certaine 10 tranche de population d'abonnés, sans devoir envoyer des messages de gestion d'allocation de droits (EMM) de validation puis de dévalidation. However, such a consumption method does not make it possible to make promotional offers directly with a subscriber, or even to authorize a service in a targeted manner, for example seeing a given program during a certain window of time, depending on the profile of the customer. a determined subscriber, so as to target a certain slice of subscriber population, without having to send validation allocation management (EMM) messages then validation.
L'invention a pour objet de résoudre un tel problème en prévoyant un nouveau mode de consommation 15 permettant d'autoriser un service de façon ciblée et à distance en fonction d'un profil d'abonnée déterminé, sans entraîner de forte contrainte sur la station d'émission d'opérateur. The object of the invention is to solve such a problem by providing a new mode of consumption allowing a service to be targeted and remotely as a function of a determined subscriber profile, without causing any heavy constraint on the station. operator transmission.
EXPOS DE L'INVENTION La présente invention propose donc un procédé de contrôle d'accès, en télévision numérique payante, à des informations contenues dans un signal reçu par une station de réception abonné comprenant des étapes - d'émission de deux types de messages via cette station de réception abonné vers un dispositif utilisateur, par exemple une carte à puce, des premiers messages de contrôle d'allocation de droits (ECM) contenant des informations pour permettre à cette 30 station de réception abonné de décoder le signal et pour proposer aux abonnés un mode de fonctionnement à SP 22136 DB la demande, des seconds messages de gestion d'allocation de droits (EMM) contenant des informations pour permettre la mise à jour des données d'allocation de droits de l'utilisateur, - de génération dans le dispositif utilisateur d'un signal d'autorisation d'accès (CW) pour permettre le décodage dudit signal par la station de réception abonné si l'utilisateur est autorisé à accéder aux informations contenues dans celui-ci, caractérisé en ce qu'on émet des premiers messages de contrôle d'allocation de droits (ECM) ayant un contenu de profil paramétrable permettant de faire une offre additionnelle, pour au moins un service ou un programme, à un abonné en fonction de son profil. 15 Le procédé de l'invention permet avantageusement: - de faire des offres promotionnelles, avec réduction du nombre de messages de gestion d'allocation 20 de droits (EMM) transmis, de réaliser un "profiling" (tenir compte du profil des abonnés) aisément, - de lutter contre le piratage système. PRESENTATION OF THE INVENTION The present invention therefore proposes a method for controlling access, in digital pay television, to information contained in a signal received by a subscriber reception station comprising steps - for transmitting two types of messages via this subscriber receiving station to a user device, for example a smart card, first rights allocation control messages (ECM) containing information to allow this subscribed receiving station to decode the signal and to propose to the subscribers an operating mode to SP 22136 DB on request, second rights allocation management messages (EMM) containing information to allow updating of the rights allocation data of the user, - generation in the user device of an access authorization signal (CW) to allow the decoding of said signal by the subscriber reception station if the user is authorized to access the information contained therein, characterized in that first rights allocation control messages (ECM) are sent having a configurable profile content making it possible to make an additional offer, for at least one service or a program, to a subscriber according to his profile. The method of the invention advantageously allows: - to make promotional offers, with reduction in the number of rights allocation management messages (EMM) transmitted, to carry out a "profiling" (take account of the profile of the subscribers) easily, - to fight against system piracy.
Ce procédé permet, en effet, de lutter 25 contre un certain type de piratage système, qui consiste pour un abonné donné, à un instant déterminé, de demander une offre d'abonnement maximale puis après réception du message de gestion d'allocation de droits (EMM) de validation, de demander l'abonnement de base 30 tout en éliminant les messages de gestion d'allocation SP 22136 DB de droits (EMM) suivants, comprenant notamment le message EMM de révocation. This method makes it possible, in fact, to combat a certain type of system hacking, which consists for a given subscriber, at a determined time, of requesting a maximum subscription offer and then after receipt of the rights allocation management message. (EMM) validation, request the basic subscription 30 while eliminating the following allocation management messages SP 22136 DB (EMM), including in particular the message EMM revocation.
BREVE DESCRIPTION DES DESSINSBRIEF DESCRIPTION OF THE DRAWINGS
La figure unique illustre un système d'émission-réception de signaux de télévision numérique de l'art connu. The single figure illustrates a transmission-reception system for digital television signals of the prior art.
EXPOS D TAILL DE MODES DE R ALISATION PARTICULIERS Dans le procédé de l'invention, qui fonctionne dans un système tel qu'illustré sur la figure, les messages de contrôle d'allocation de droits ECM ont un contenu de profil paramétrable, ce qui permet de réaliser une certaine interactivité entre le 15 contenu de tels messages ECM et le contenu de la carte à puce, en termes d'abonnement pour l'abonné. EXPOS D SIZE OF PARTICULAR EMBODIMENTS In the method of the invention, which operates in a system as illustrated in the figure, the ECM rights allocation control messages have a configurable profile content, which allows to achieve a certain interactivity between the content of such ECM messages and the content of the smart card, in terms of subscription for the subscriber.
Il est ainsi possible, pour des abonnés, qui bénéficient d'une première offre 01 et d'une seconde offre 02, de pouvoir bénéficier d'une troisième 20 offre 03 sous le contrôle des messages ECM, pendant la durée d'un film par exemple. Si l'on veut alors ne plus faire une telle offre en promotion on retire la condition des messages ECM. It is thus possible, for subscribers, who benefit from a first offer 01 and a second offer 02, to be able to benefit from a third offer 03 under the control of the ECM messages, for the duration of a film by example. If one then wants to no longer make such a promotional offer, the condition of the ECM messages is withdrawn.
Une telle caractéristique permet une 25 visualisation de certains services en fonction du profil des abonnés, sans avoir à envoyer, au préalable, un grand nombre de messages de gestion d'allocation de droits EMM. Such a characteristic makes it possible to view certain services according to the profile of the subscribers, without having to send, beforehand, a large number of EMM rights allocation management messages.
Elle permet, également, de faire bénéficier -30 d'un prix réduit les abonnés ayant un certain profil. It also allows subscribers with a certain profile to benefit from -30 a reduced price.
SP 22136 DB Par exemple un abonné ayant payé des droits pour des programmes Pl et P2 et une offre commerciale Qi peut payer un programme à acheter 2 jetons, alors que les autres utilisateurs ont à payer 4 jetons. SP 22136 DB For example, a subscriber who paid rights for Pl and P2 programs and a Qi commercial offer can pay a program to buy 2 tokens, while other users have to pay 4 tokens.
Une telle caractéristique permet, également, de lutter contre le piratage système. Selon le procédé de l'invention, pour chaque service ou chaque programme est attribuée une offre temporaire journalière. Lorsqu'un abonné demande à avoir accès à 10 un programme, par exemple une séance de cinéma, plutôt que lui donner accès à une offre permanente, on lui donne accès à une offre temporaire. Such a characteristic also makes it possible to combat system piracy. According to the method of the invention, for each service or each program is allocated a daily temporary offer. When a subscriber requests access to a program, for example a cinema screening, rather than giving him access to a permanent offer, he is given access to a temporary offer.
Ainsi si dans un laps de temps court, par exemple la même journée, cet abonné demande une offre 15 d'abonnement maximale puis change d'avis et, pour ne pas payer, demande à bénéficier de l'abonnement de base, usuellement un message de gestion d'allocation de droits EMM de révocation lui est envoyé. Si celui-ci, alors, utilise un "blocker" de ces messages EMM, pour 20 éliminer ceux-ci, il peut alors continuer à avoir accès au service demandé, ou au programme demandé, gratuitement pendant, par exemple, deux mois. So if in a short period of time, for example the same day, this subscriber requests a maximum subscription offer 15 then changes his mind and, in order not to pay, requests to benefit from the basic subscription, usually a message management of the allocation of rights to revoke EMM is sent to it. If the latter, then, uses a blocker of these EMM messages, in order to eliminate them, he can then continue to have access to the requested service, or to the requested program, free of charge for, for example, two months.
Par contre avec le procédé de l'invention, puisque l'offre est temporaire, le lendemain, par 25 exemple, l'abonné n'a plus accès au service, ou au programme, même s'il a utilisé un "blocker EMM" . Pour les abonnés ayant demandé et confirmé leur offre maximale, il est toutefois nécessaire d'envoyer un message EMM de révocation avec l'offre permanente de ce 30 service, ou de ce programme. On the other hand with the method of the invention, since the offer is temporary, the next day, for example, the subscriber no longer has access to the service, or to the program, even if he has used an "EMM blocker" . For subscribers who have requested and confirmed their maximum offer, it is however necessary to send an EMM revocation message with the permanent offer of this service, or of this program.
SP 22136 DB Exemple de mise en oeuvre du procédé de l'invention avec des contenus conditionnels De tels contenus conditionnels des messages 5 EMM permettent de travailler en utilisant des fonctions ET, OU, SI, SINON et NON, sur les champs Bitmap que représentent l'adressage géographique et/ou l'adressage abonnement. Ils permettent, également, de réaliser un fonctionnement conditionnel entre des numéros de 10 programmes, par exemple un achat de tel programme si tel autre programme a déjà été acheté. SP 22136 DB Example of implementation of the method of the invention with conditional contents Such conditional contents of 5 EMM messages make it possible to work by using functions AND, OR, IF, ELSE and NOT, on the Bitmap fields that represent l '' geographic addressing and / or subscription addressing. They also make it possible to carry out conditional operation between numbers of 10 programs, for example a purchase of such a program if such another program has already been purchased.
Un tel mode de fonctionnement conditionnel se présente sous la forme d'une séquence, par exemple: SI (offre 01) ET (offre 02) ET (NON offre 03) Achat programme Pl en mode "Impulsive pay per view" proposé à 50 jetons. Such a conditional operating mode takes the form of a sequence, for example: SI (offer 01) AND (offer 02) AND (NOT offer 03) Purchase program Pl in "Impulsive pay per view" mode offered at 50 tokens .
SINONIF NOT
- Achat programme Pl en mode "Impulsive pay per view" proposé à 70 jetons. - Purchase of Pl program in "Impulsive pay per view" mode offered at 70 chips.
FINSIEND IF
avec des bitmaps conditionnels On peut utiliser des mécanismes conditionnels pour offrir à un abonné des possibilités 25 d'achats ou de visualisation additionnels, par with conditional bitmaps Conditional mechanisms can be used to offer a subscriber additional purchasing or viewing possibilities, for example.
exemple:example:
SI (((offre 01) ET ((offre 03) OU (offre 04))) OU (offre 02) visualisation possible d'un programme FINSI. SP 22136 DB avec lutte contre un piratage système On peut utiliser des mécanismes conditionnels pour lutter contre le type de piratage décrit ci-dessus, par exemple - au jour to SI ((offre temporaire 05) OU (offre permanente 01)) - visualisation possible d'un programme IF (((offer 01) AND ((offer 03) OR (offer 04))) OR (offer 02) possible visualization of a FINSI program. SP 22136 DB with fight against a hacking system We can use conditional mechanisms to fight against the type of hacking described above, for example - on the day to SI ((temporary offer 05) OR (permanent offer 01)) - possible viewing of a program
FINSIEND IF
- au jour to + 1 SI ((offre temporaire 06) OU (offre permanente 01)) visualisation possible de ce programme FINSI. SP 22136 DB - on day to + 1 SI ((temporary offer 06) OR (permanent offer 01)) possible viewing of this FINSI program. SP 22136 DB
Claims (2)
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0215978A FR2848764A1 (en) | 2002-12-17 | 2002-12-17 | Paying digital television signal access controlling procedure, involves emitting messages having contents for monitoring allocation of rights, and enabling additional offer of service/program to subscriber based on users profile |
| BR0317347-0A BR0317347A (en) | 2002-12-17 | 2003-12-16 | Digital Pay TV Access Control Method |
| EP03809993A EP1574059A2 (en) | 2002-12-17 | 2003-12-16 | Method for access control in digital pay television |
| AU2003302182A AU2003302182A1 (en) | 2002-12-17 | 2003-12-16 | Method for access control in digital pay television |
| MXPA05006345A MXPA05006345A (en) | 2002-12-17 | 2003-12-16 | Method for access control in digital pay television. |
| CNA2003801062217A CN1726714A (en) | 2002-12-17 | 2003-12-16 | Paying digital television signal access controlling method |
| JP2004561580A JP2006510323A (en) | 2002-12-17 | 2003-12-16 | Access control method and system for digital pay TV |
| PCT/FR2003/050181 WO2004057871A2 (en) | 2002-12-17 | 2003-12-16 | Method for access control in digital pay television |
| KR1020057011171A KR20050090399A (en) | 2002-12-17 | 2003-12-16 | Method for access control in digital pay television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0215978A FR2848764A1 (en) | 2002-12-17 | 2002-12-17 | Paying digital television signal access controlling procedure, involves emitting messages having contents for monitoring allocation of rights, and enabling additional offer of service/program to subscriber based on users profile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2848764A1 true FR2848764A1 (en) | 2004-06-18 |
Family
ID=32338873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0215978A Pending FR2848764A1 (en) | 2002-12-17 | 2002-12-17 | Paying digital television signal access controlling procedure, involves emitting messages having contents for monitoring allocation of rights, and enabling additional offer of service/program to subscriber based on users profile |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP1574059A2 (en) |
| JP (1) | JP2006510323A (en) |
| KR (1) | KR20050090399A (en) |
| CN (1) | CN1726714A (en) |
| AU (1) | AU2003302182A1 (en) |
| BR (1) | BR0317347A (en) |
| FR (1) | FR2848764A1 (en) |
| MX (1) | MXPA05006345A (en) |
| WO (1) | WO2004057871A2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1662789A1 (en) * | 2004-11-29 | 2006-05-31 | Nagracard S.A. | Conditional access method to conditional access data |
| EP1815682A2 (en) * | 2004-11-17 | 2007-08-08 | General Instrument Corporation | System and method for providing authorized access to digital content |
| WO2009153759A1 (en) * | 2008-06-20 | 2009-12-23 | Nagravision S.A. | Method for controlling the use of a conditional access content and multimedia unit for implementing said method |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9325944B2 (en) | 2005-08-11 | 2016-04-26 | The Directv Group, Inc. | Secure delivery of program content via a removable storage medium |
| CN101026735B (en) * | 2006-02-25 | 2010-05-12 | 华为技术有限公司 | Method for providing chargin strategy for protection mechanism |
| WO2007095809A1 (en) * | 2006-02-24 | 2007-08-30 | Huawei Technologies Co., Ltd. | Method, system and service server for providing content usage information |
| KR100753288B1 (en) * | 2006-05-11 | 2007-08-29 | 주식회사 팬택앤큐리텔 | Method of servicing ippv in the satellite dmb |
| US7992175B2 (en) | 2006-05-15 | 2011-08-02 | The Directv Group, Inc. | Methods and apparatus to provide content on demand in content broadcast systems |
| US8775319B2 (en) | 2006-05-15 | 2014-07-08 | The Directv Group, Inc. | Secure content transfer systems and methods to operate the same |
| US8996421B2 (en) | 2006-05-15 | 2015-03-31 | The Directv Group, Inc. | Methods and apparatus to conditionally authorize content delivery at broadcast headends in pay delivery systems |
| US9225761B2 (en) | 2006-08-04 | 2015-12-29 | The Directv Group, Inc. | Distributed media-aggregation systems and methods to operate the same |
| US9178693B2 (en) | 2006-08-04 | 2015-11-03 | The Directv Group, Inc. | Distributed media-protection systems and methods to operate the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002054765A1 (en) * | 2001-01-02 | 2002-07-11 | Nds Limited | Method and system for control of broadcast content access |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6057872A (en) * | 1997-07-09 | 2000-05-02 | General Instrument Corporation | Digital coupons for pay televisions |
| WO2001047265A1 (en) * | 1999-12-22 | 2001-06-28 | Koninklijke Philips Electronics N.V. | Conditional access system for controlling the access to a data content |
-
2002
- 2002-12-17 FR FR0215978A patent/FR2848764A1/en active Pending
-
2003
- 2003-12-16 KR KR1020057011171A patent/KR20050090399A/en not_active Application Discontinuation
- 2003-12-16 CN CNA2003801062217A patent/CN1726714A/en active Pending
- 2003-12-16 JP JP2004561580A patent/JP2006510323A/en active Pending
- 2003-12-16 BR BR0317347-0A patent/BR0317347A/en not_active IP Right Cessation
- 2003-12-16 MX MXPA05006345A patent/MXPA05006345A/en not_active Application Discontinuation
- 2003-12-16 AU AU2003302182A patent/AU2003302182A1/en not_active Abandoned
- 2003-12-16 EP EP03809993A patent/EP1574059A2/en not_active Withdrawn
- 2003-12-16 WO PCT/FR2003/050181 patent/WO2004057871A2/en not_active Application Discontinuation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002054765A1 (en) * | 2001-01-02 | 2002-07-11 | Nds Limited | Method and system for control of broadcast content access |
Non-Patent Citations (1)
| Title |
|---|
| "FUNCTIONAL MODEL OF A CONDITIONAL ACCESS SYSTEM", EBU REVIEW- TECHNICAL, EUROPEAN BROADCASTING UNION. BRUSSELS, BE, no. 266, 21 December 1995 (1995-12-21), pages 64 - 77, XP000559450, ISSN: 0251-0936 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1815682A2 (en) * | 2004-11-17 | 2007-08-08 | General Instrument Corporation | System and method for providing authorized access to digital content |
| EP1815682A4 (en) * | 2004-11-17 | 2009-12-16 | Gen Instrument Corp | System and method for providing authorized access to digital content |
| EP1662789A1 (en) * | 2004-11-29 | 2006-05-31 | Nagracard S.A. | Conditional access method to conditional access data |
| WO2006056609A1 (en) * | 2004-11-29 | 2006-06-01 | Nagracard S.A. | Method for controlling access to conditional access data |
| CN101065965B (en) * | 2004-11-29 | 2011-01-26 | 纳格拉影像股份有限公司 | Method for controlling access to conditional access data |
| US8099778B2 (en) | 2004-11-29 | 2012-01-17 | Nagravision S.A. | Method for access control to conditional access data |
| WO2009153759A1 (en) * | 2008-06-20 | 2009-12-23 | Nagravision S.A. | Method for controlling the use of a conditional access content and multimedia unit for implementing said method |
| US8578505B2 (en) | 2008-06-20 | 2013-11-05 | Nagravision S.A. | Method for controlling the use of a conditional access content and multimedia unit for implementing said method |
Also Published As
| Publication number | Publication date |
|---|---|
| BR0317347A (en) | 2005-11-08 |
| CN1726714A (en) | 2006-01-25 |
| AU2003302182A8 (en) | 2004-07-14 |
| WO2004057871A2 (en) | 2004-07-08 |
| AU2003302182A1 (en) | 2004-07-14 |
| WO2004057871A3 (en) | 2004-08-12 |
| MXPA05006345A (en) | 2005-08-26 |
| KR20050090399A (en) | 2005-09-13 |
| JP2006510323A (en) | 2006-03-23 |
| EP1574059A2 (en) | 2005-09-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0740870B1 (en) | Method for the transmission and reception of conditional access programmes using control words specific to said programmes | |
| EP0414846B1 (en) | Pre-payment television system using a memory card associated with a decoder | |
| EP1961223B1 (en) | Method of controlling access to a scrambled content | |
| EP2052539B1 (en) | Method of revocation of security modules used to secure broadcast messages | |
| EP1454489A1 (en) | Protocol for controlling the mode of accessing data transmitted in point-to-point or point-to-multipoint mode | |
| FR2802755A1 (en) | CONDITIONAL ACCESS SYSTEM FOR PARTIAL VIEWING | |
| FR2848764A1 (en) | Paying digital television signal access controlling procedure, involves emitting messages having contents for monitoring allocation of rights, and enabling additional offer of service/program to subscriber based on users profile | |
| EP2659613B1 (en) | Method of transmitting and receiving a multimedia content | |
| FR2779599A1 (en) | System for television broadcasting to multiple users with right of access | |
| CA2442534C (en) | System and method for transmitting encrypted data with encryption key | |
| EP1994745A1 (en) | Method for securely delivering audiovisual sequences, decoder and system therefor | |
| EP1576818B1 (en) | Method of managing the display of event specifications with conditional access | |
| EP1595399B1 (en) | Pay television, method for revoking rights in such a system, associated decoder and smart card, and message transmitted to such a decoder | |
| EP1552694B1 (en) | Conditional access data decrypting system | |
| EP1723791B1 (en) | Method of securing a scrambled content sent by a broadcaster | |
| EP1492347A1 (en) | System and decoder for pay tv data processing and process for management of at least two decoders | |
| EP2328316B1 (en) | Access control to digital content | |
| EP1590960A2 (en) | Method for storing and transmitting data generated by a security module | |
| EP2061243A1 (en) | Method for accessing data with conditional access | |
| EP1605698A1 (en) | Security method for a broadcast service |