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WO2009008847A1 - Système et procédé de codage de contenu dans des diffusions numériques - Google Patents

Système et procédé de codage de contenu dans des diffusions numériques Download PDF

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Publication number
WO2009008847A1
WO2009008847A1 PCT/TR2007/000065 TR2007000065W WO2009008847A1 WO 2009008847 A1 WO2009008847 A1 WO 2009008847A1 TR 2007000065 W TR2007000065 W TR 2007000065W WO 2009008847 A1 WO2009008847 A1 WO 2009008847A1
Authority
WO
WIPO (PCT)
Prior art keywords
encoding
encoded
signals
unit
systems
Prior art date
Application number
PCT/TR2007/000065
Other languages
English (en)
Inventor
Can Ahmet Gurakin
Original Assignee
Fg Digital Teknolojiler Elektronik Yazilim Gelistirme Bilgisayar Ve Danismanlik Sanayi Ve Ticaret Limited Sirketi
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 Fg Digital Teknolojiler Elektronik Yazilim Gelistirme Bilgisayar Ve Danismanlik Sanayi Ve Ticaret Limited Sirketi filed Critical Fg Digital Teknolojiler Elektronik Yazilim Gelistirme Bilgisayar Ve Danismanlik Sanayi Ve Ticaret Limited Sirketi
Priority to PCT/TR2007/000065 priority Critical patent/WO2009008847A1/fr
Priority to EP07808959A priority patent/EP2098074A1/fr
Publication of WO2009008847A1 publication Critical patent/WO2009008847A1/fr

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
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
    • 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
    • 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
    • H04N21/2541—Rights Management
    • 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
    • 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
    • H04N21/6143—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via a satellite
    • 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

Definitions

  • the invention relates to a coding system that is developed for providing the security of the channels those were chosen by the broadcasters wherein digital broadcasts and especially satellite broadcasts are needed to be coded.
  • the invention especially relates to an encoding system that is flexible to be used in all systems (ip-phone, video and audio conference, wireless communication) requiring content coding feature; that can not be decoded by sharing systems and do not require smart card to be used as a decoder.
  • analogue broadcasts are gradually replaced by the digital broadcasts.
  • the electronic systems are divided into two groups as 'analogue' and 'digital'.
  • electrical signals change constantly and are able to take any value within certain limits.
  • digital systems electrical signals are not transmitted as they are. Instead of these signals some numbers, those match the samplings, are transmitted as a result of the samplings which are created on the said signals in regular periods.
  • the broadcasters needed to encode some of their channels and they allow their subscribers; who want to watch the satellite channels, watch these channels by password questioning.
  • the user should have a satellite dish, a LNB, satellite receiver, a Cl / CM (Common Interface / Conditional Access Module) that decodes the encoded signals and a smart card for the encoded broadcasts; in order to watch an encoded / un - encoded satellite broadcast.
  • Cl / CM Common Interface / Conditional Access Module
  • the LNB which is attached to the centre of the satellite dish collects the signals, increases the required frequency range and sends them to the satellite receiver (set -top box).
  • the simplest type of these said satellite receivers are the FTA's (free to air). Encoded / encrypted broadcasts can not be watched with this type of satellite receiver. So as to watch these encoded channels, a decoder which decodes these codes is needed. These kinds of decoders are called Cl - Common Interface or CAM - Conditional Access Module.
  • CAM is a PCMCI module which is designed for satellite receivers and Cl is a socket wherein CAM module can be fixed.
  • Conditional Access module - CAM is required for encoding the said encoded signals.
  • the broadcasters those broadcast over the satellite use various coding systems such as Alphacrypt, Conax, Cryptoworks, Irdeto, Nagravision, Seca and Viaccess.
  • Said broadcasters have their own mixer and encoder systems. In order to receive the image and sound in the signals of the broadcasts where encoding systems are used, the keys in the smart card are needed.
  • Video Broadcasting products (DVB - S, DVB - T, DVB - IP, DVB - H, DVB - C, and DVB - S & T & H & C & IP).
  • Prevent invention relates to a content encoding method and algorithm which meets the above said requirements, eliminates all the disadvantages and brings some additional advantages.
  • the object of the invention is to present a system which includes all of the examples of general working principles which were not applied before and can not be decoded with the card sharing devices.
  • the object of the invention is to provide the system to be changed from a distance by the broadcasters without the need for changing the media (card - chip - password) in case of decoding and thus prevent working of any sharing and reproduction systems.
  • the object of the invention is to prevent data copying and decoding with card sharing devices.
  • the object of the invention is to put forward a decoding system that is developed to be used with all (DVB - S, DVB - T, DVB - IP, DVB - H, DVB - C, and DVB - S & T & H & C & IP) of the digital video broadcasting products.
  • the object of the invention is to put forward an encoding system which offers a wider security by including even a simple algorithm since the system sends the code directories sent by the broadcaster as encoded.
  • the object of the invention is to provide being managed from outside and to provide being automatically controlled with its flexibility in case of any factors.
  • Another object of the invention is to provide the user to buy any one or more encoded content channels offered by the broadcasters; via internet by means of a secure connection (SSL) with web interface, via satellite directly or with short message services.
  • SSL secure connection
  • Another object of the invention is to prevent tax and profit loss and unfair competition amongst the companies arising from illegal passing of the pre - paid smart cards from the customs which are already in use for the DVB encoding, since the need for smart cards is eliminated.
  • Figure 1 is the block schema that shows the working principles of the content encoding system which is the subject of this invention.
  • the block schema is given in the figure 1 shows the working principles of the content encoding system which is the subject of the invention.
  • the signals which are encoded with the universal coding systems by the broadcasters, who broadcast via satellite as the signal transmission line (10), are collected in the collector (2) by means of inner access network input (3).
  • These encoded signals which are collected in the collector (2) are transmitted to the application unit (7).
  • the required works are realized by means of management unit (4) and inner and outer access network inputs (3, 6) of code algorithm.
  • the encoding and security unit (8) which is connected to the output of the application unit (7), it sends the securely encoded signals, coming from the application unit (7) provided by the broadcaster, by encrypting and thus the system turns out to be an encoding system which offers a wider security including even a simple algorithm.
  • the signal which is encoded by the said encoding and security unit (8) is sent via the output (ASI) (9) which that sends the broadcasts to the satellite directly.
  • This signal which is received by the satellite and sent to the satellite receiver (11 ) of the user is encoded by the micro processor unit (12) which is in the said receiver (11 ) and the user is provided to watch the channel.
  • an encoding system is obtained which is developed to be used with all of the digital video broadcasting products (DVB - S, DVB - T, DVB - IP, DVB - H, DVB - C, and DVB - S & T & H & C & IP).
  • said encoding system might be used with the pre - paid systems and watch and pay (VOD) systems.
  • the encoding system said as an alternative is able to work with different technologies which are used as signal transmission lines (10). For example, it provides the user to buy any one or more encoded content channels offered by the broadcasters via internet by means of a secure connection (SSL) with web interface, via satellite directly or with short message services.
  • SSL secure connection

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Databases & Information Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

L'invention concerne un système de codage de contenu qui est développé pour crypter des signaux qui sont encodés avec les systèmes d'encodage universels par les diffuseurs dans un serveur (1), et pour les envoyer à l'utilisateur via une ligne de transmission de signal (10) ; comprenant un serveur de système d'encodage (1), une unité d'application (7) dans le serveur de système d'encodage (1) et une unité d'encodage et de sécurité (8) qui envoie les signaux encodés de manière sûre à la sortie de l'unité d'application (7) ; provenant de l'unité d'application (7) fournie par le diffuseur ; avec la sortie (9) via la ligne de transmission de signal (10).
PCT/TR2007/000065 2007-07-10 2007-07-10 Système et procédé de codage de contenu dans des diffusions numériques WO2009008847A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/TR2007/000065 WO2009008847A1 (fr) 2007-07-10 2007-07-10 Système et procédé de codage de contenu dans des diffusions numériques
EP07808959A EP2098074A1 (fr) 2007-07-10 2007-07-10 Système et procédé de codage de contenu dans des diffusions numériques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/TR2007/000065 WO2009008847A1 (fr) 2007-07-10 2007-07-10 Système et procédé de codage de contenu dans des diffusions numériques

Publications (1)

Publication Number Publication Date
WO2009008847A1 true WO2009008847A1 (fr) 2009-01-15

Family

ID=39434384

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2007/000065 WO2009008847A1 (fr) 2007-07-10 2007-07-10 Système et procédé de codage de contenu dans des diffusions numériques

Country Status (2)

Country Link
EP (1) EP2098074A1 (fr)
WO (1) WO2009008847A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005119963A1 (fr) 2004-05-27 2005-12-15 Qualcomm Incorporated Procede et dispositif destines a la transition d'une cle de codage durant une session de communication multimedia en cours
US20060210065A1 (en) 2003-07-14 2006-09-21 Sony Corporation Encryption/decryption device and method
US20070050293A1 (en) * 2005-08-26 2007-03-01 Petr Peterka Method and apparatus for distributing content to a client device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060210065A1 (en) 2003-07-14 2006-09-21 Sony Corporation Encryption/decryption device and method
WO2005119963A1 (fr) 2004-05-27 2005-12-15 Qualcomm Incorporated Procede et dispositif destines a la transition d'une cle de codage durant une session de communication multimedia en cours
US20070050293A1 (en) * 2005-08-26 2007-03-01 Petr Peterka Method and apparatus for distributing content to a client device

Also Published As

Publication number Publication date
EP2098074A1 (fr) 2009-09-09

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