WO2003071798A2 - Procede pour controler l'acces a un contenu par un terminal, terminal, serveur de droits d'usage, automate de distribution, serveur fournisseur, support de donnees et systeme associes - Google Patents
Procede pour controler l'acces a un contenu par un terminal, terminal, serveur de droits d'usage, automate de distribution, serveur fournisseur, support de donnees et systeme associes Download PDFInfo
- Publication number
- WO2003071798A2 WO2003071798A2 PCT/FR2003/000338 FR0300338W WO03071798A2 WO 2003071798 A2 WO2003071798 A2 WO 2003071798A2 FR 0300338 W FR0300338 W FR 0300338W WO 03071798 A2 WO03071798 A2 WO 03071798A2
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- WO
- WIPO (PCT)
- Prior art keywords
- content
- terminal
- parts
- memory
- medium
- Prior art date
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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
- H04N7/165—Centralised control of user terminal ; Registering at central
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- 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
Definitions
- the present invention relates to a method for controlling access to content by a terminal as well as a terminal, a content usage rights server, an automaton for distributing second parts of content, a server providing content parts. , a data carrier and a system for implementing the method.
- a known method of controlling access to broadcast content consists of scrambling the content and communicating one or more descrambling keys to the receivers authorized to receive this content. There are different variants of the implementation of this access control method.
- a first variant consists in decomposing the content into data packets, marking the packets using either an even or an odd indicator and scrambling the packets marked by the even indicator using a first scrambling key and the data packets marked by the odd flag with a second scrambling key, different from the first.
- the broadcast content can be broken down into several data streams.
- content can be broken down, for each type of audio and video data, into a basic data stream and into one or more complementary data streams intended to improve the signal quality carried by the basic stream.
- Each receiver can thus adapt the quality of the received signal to its own capacities, using the basic stream and possibly one or more complementary streams.
- a second alternative embodiment of the method for controlling access to the broadcast content consists in scrambling only one of the streams, for example the basic audio stream, so as to degrade the sound quality of the audio component of the content. . Only receivers with the correct key can use the audio component of the content with optimal sound quality.
- a third variant consists in decomposing the content into an elementary data flow, the restitution of which leads to a discernible component of the content but not directly usable, and in a complementary data stream allowing a complete restitution of the content, and in confusing the only flow complementary.
- the technical problem of the invention therefore consists in proposing a method for controlling access to content by a terminal which makes it possible to limit the risk of piracy and fraudulent copies.
- the first part of the content, stored in the terminal, does not by itself allow the content to be properly rendered.
- the terminal To restore the content, the terminal must retrieve the second part of the content on the external medium and then combine the two parts of the content.
- the bytes values of the content are noted, at random, and the values recorded by the bytes, forming the second part of the content, and their respective positions are recorded in the memory of the medium. in the content.
- Such a byte sampling mode is suitable for any type of coding.
- the bytes values of the content are noted in a targeted manner and the values recorded by the bytes, forming the second part of the content, and their respective positions in the content are recorded in the medium memory.
- Such a byte sampling mode makes it possible to extract essential bytes from the original content so as to reliably disturb it.
- a holder of said medium acquires rights to use the content and - before reconstituting the content from the two parts of content, the validity of the rights of use is checked and the reconstitution of the content is only authorized if the rights are valid.
- the terminal must not only have access to the memory medium storing the second part of the content, but the rights to use the content attributed to the holder of the medium must also be valid.
- These rights to use the content may consist, for example, of a period of use or a number of uses.
- the granting of rights to use the content on the terminal makes it possible to further limit the risks of piracy.
- a network address of a usage rights server is recorded in the memory of the medium and, to verify the validity of the usage rights, the terminal connects to the rights server through the network.
- the terminal retrieves the first part of the content according to one of the following methods:
- the medium is introduced into a distribution automaton which records the second part of the content in the memory of the medium.
- the second part of the content is recorded in the memory of the support at the end of the manufacture of said support.
- the invention also relates to a terminal, for the implementation of the method defined above, comprising means for acquiring a first part of a content, means for reading an external memory medium and means for reconstructing said content by combining the first part of the content and a second part of the content extracted from the memory of the external medium.
- the invention also relates to a content usage rights server, for the implementation of the previously defined method, comprising a user database containing, for each user, user identification data and user rights.
- use of the user relating to a given content means of connection to a network and means of authorization of use arranged for, on receipt of a request from a user terminal, verifying the validity of the rights of use of said user relating to content in order to authorize or prohibit the use of said content.
- the invention also relates to an automaton for distributing second parts of content, for implementing the method defined above, comprising means for acquiring second parts of content, human-machine interface means arranged to allow a user to select one of the second parts of content and means for storing the second part of selected content in a memory of an external memory medium.
- the invention also relates to a server providing first and second parts of content, for the implementation of the previously defined method, comprising a content database containing a plurality of content and means for splitting each content of the database into a first and a second part of content and means for sending said first and second parts.
- the invention also relates to a data medium, for the implementation of the previously defined method, intended to contain part of a content making it possible to reconstruct said content.
- the invention finally relates to a system for implementing the previously defined method, comprising
- a content parts provider located on a first network and intended to split content into first and second parts; - at least one distribution machine, intended to receive second parts of content transmitted by said supplier through the first network and to distribute the second parts of content, stored on data carriers, to users and - at least one terminal for reading content intended for storing the first part of a content, for reading an external data medium in order to extract the second part from said content and for combining the first and the second parts for the content in order to reconstruct said content.
- FIG. 1 shows a view of the system of the invention
- FIG. 2 shows a functional block diagram of a supplier of reduced content and associated content extracts of Figure 1
- - Figure 3 shows a functional block diagram of a content usage rights server of Figure 1;
- FIG. 4 shows a functional block diagram of an automatic distribution of content extracts of Figure 1;
- FIG. 1 shows a functional block diagram of the terminal of Figure 1;
- FIGS. 6 and 6A to 6E represent flow diagrams of the different steps of the method.
- the system represented in FIG. 1 comprises a terminal 1 for reading content, a memory medium 2, in this case a memory card, a server 6 providing reduced content and content extracts, an automatic machine
- FIG. 1 shows a single distribution machine 3 and a single terminal 1.
- the system preferably comprises a plurality of distribution machines and a plurality of payment terminals. reading.
- the server 6 providing reduced content and associated content extracts comprises a content database 60, a scrambling module 61, a content splitting module 62, a sending module 63 and a connection module 64 to the IP 8 private network.
- the content database 60 contains a plurality of content and, for each content, the identification reference of this content, descriptive information on this content, a scrambling key and a corresponding descrambling key.
- the descriptive information of a content contains the title of the content, its duration, a summary, information on the people linked to this content (director, actors, producer, etc.) and other information of a nature to interest a potential viewer of the content. .
- the burst module 62 connected to the database 60 and to the sending module 63, is intended to split the contents of the database 60 into first and second parts, which will be called respectively "contents collapsed "and” content extract ".
- the operation of “bursting” of a content consists in reading the byte values of this content, by locating the respective positions of these bytes. The bytes whose values are read are chosen randomly here. These bytes are here removed from the original content. All the bytes noted form the content extract while the original content “unloaded” from the bytes noted constitutes the reduced content.
- the scrambling module 61 interposed between the database 60 and the burst module 62, is intended to scramble the contents using the scrambling key stored in the database 60 and to provide the module sending 63 the corresponding descrambling key.
- the sending module 63 connected to the module 64 for connection to the IP network 8, is intended to transmit
- the automaton 3 comprises a local database 30, a recording module 31, a set 32 of human-machine interface, a module 33 for acquiring content extracts, a housing 34 for receiving a card with memory, a module 35 for connection to the rights server 4 and a module 36 for connection to the private IP network 8. All these elements are connected to a central unit 37 controlling the operation of the automaton 3.
- the database 30 contains extracts of content and, for each of these extracts, the reference identifying the original content (that is to say the content from which the extract is taken), information descriptive relating to this content, the respective positions of the bytes noted in the original content and forming the content extract and the descrambling key of the original content.
- the database 30 could be external to the automaton 3.
- the human-machine interface assembly 32 includes an input keyboard 320, a display screen 321 and a human-machine interface application 322 allowing a user to view on the screen 321 the list of contents for which extracts are stored in the database 30, and to select one of the contents of this list in order to order the recording of the corresponding extract in the memory of a card inserted in the slot 34.
- the recording module 31, connected to the database 30, is intended to extract from the database 30 the extract of content selected by the user using the application 322, the respective positions in the original content, bytes whose values have been read out and forming this content extract, as well as the identification reference and the descrambling key original content and to record all this information in a memory card inserted in the slot 34.
- the acquisition module 33 connected to the database 30 and to the private IP network 8 via the connection module 36, is intended to acquire the content extracts and information relating to this content (identification reference , descriptive information and positions of the bytes noted in the original content), with the supplier 6 through the private IP network 8.
- identification reference , descriptive information and positions of the bytes noted in the original content
- the latter connects then to supplier 6 and retrieves extracts from the new content.
- the automaton 3 could regularly connect to the supplier 6 in order to recover the extracts of the new content.
- the automaton 3 could have no database. In this case, for each content extract requested by a user, the machine would connect to the supplier 6 to retrieve the requested content extract.
- the module 35 for connection to the rights server 4, connected to the IP connection module 36, allows the controller 3 to connect to the rights server 4 and thus to put the holder of a memory card 2 in contact with the usage rights server 4 in order to allow the card holder 2 to acquire usage rights on content.
- the server 4 is intended to provide users with usage rights relating to content.
- a right to use content here consists of a predetermined period of use, during which the holder of the right to use can freely use the content.
- the usage right could be a number predetermined uses, that is to say restitutions, of the content.
- the server 4 comprises a user database 40, a module 41 for managing the database 40, a usage authorization module 42, a transaction module 43, an Internet connection module 44 and a module 45 for connection to the private IP network 8.
- the user database 40 contains, for each user, an identifier and a user confidential code as well as any user usage rights relating to one or more content, with the identification reference of the content or contents considered.
- the usage authorization module 42 connected to the database 40 and to the Internet connection module 44, is intended to verify the validity of user usage rights relating to content, in order to authorize or d '' prohibit the use of these contents by these users.
- the transaction module 43 is connected to the Internet 9, via the Internet connection module 44, and to the private IP network 8, via the interface 45. This module 43 is intended to carry out transactions purchasing rights to use content by users.
- the management module 41 is connected to the database 40, to the connection module 45 and to the transaction module 43. This module 41 records, modifies and deletes information in the database 40, taking account in particular of information provided by users through the transaction module
- the WEB site 5 hosted by an Internet server 9, is linked to a database 50 containing a plurality of reduced content and, for each reduced content, the reference identifying the original content and the descriptive information content (title, duration, summary, etc.) on the basis of which users can choose whether or not they wish to acquire this content.
- the site 5 is arranged to present to visitor terminals the list of contents for which reduced contents are stored in the database 50 and, for each of these contents, the corresponding descriptive information (title, summary, duration, etc.) , and allows the terminals to obtain a copy of this reduced content.
- the reading terminal 1 comprises a man-machine interface 10, an Internet browser 11, a memory card reader 12, a content reader 13, an Internet connection module 14, a memory 15 for storing reduced content and a central control unit 15.
- the man-machine interface 10 comprises an input keyboard 100, a display screen 101 and a sound diffusion equipment 102.
- the screen 101 and the equipment 102 are connected to two digital converters / analog respective DACs 103 and 104 for converting the video data and the audio data into an audio signal and a video signal.
- the Internet browser 11, connected to the Internet connection module 14, allows the terminal 1 to browse the Internet, and in particular to connect to WEB sites.
- the card reader 12 is arranged to receive and read memory cards.
- the content reader 13 comprises a module 130 for acquiring reduced content, a module 131 for reading control, a module 132 for reconstituting and decoding the content and a man-machine interface module 133.
- the acquisition module 130 connected to the memory 15, is intended to acquire reduced content by downloading from the WEB site 5, using the browser 11, and to store this reduced content in the memory 15.
- the control module 131 connected to the reconstitution and coding module 132 and to the man-machine interface module 133, is intended to trigger the reading of content after having carried out certain verifications, as will be explained below.
- the module 132 is intended to reconstruct the content considered by combining the corresponding reduced content stored in the memory 15 and the extract of the content stored in the memory card introduced into the reader 12, then descrambling and decoding the reconstituted content.
- the operations of combining, descrambling and decoding are here executed by the same application so that it is extremely difficult to access from the outside the intermediate result of each of these operations.
- the three operations could be executed by the same monobloc material element.
- the same monoblock module could also carry out the operations of combining, descrambling, decoding and digital / analog conversion of the audio and / or video data. This the same module could also execute the operation of restoring the audio and / or video signal.
- the human-machine interface module 133 connected to the modules 130 and 131, allows a user - to acquire rights to use content from the rights server 4;
- terminal 1 All the elements of terminal 1 are connected to the central unit 15, intended to control the operation of terminal 1.
- a card distributor namely an automatic distributor or a specialized seller, gives a user the memory card 2 which contains an identifier and a confidential user code as well as
- the user identifier and confidential code are simultaneously transmitted to the server 4 and stored in the user database 40 thereof.
- the supplier 6 scrambles the content using the scrambling key stored in the database 60 (step 20a), splits it into one reduced content and an extract of content complementary (step 20b) and sends the reduced content and the associated content extract respectively to the WEB site 5, through the Internet 9, and to the controller 3, through the private IP network 8 (step 20c).
- the provider 6 reads, here in a random manner, the byte values of the original content and locates the position of each of these bytes. The bytes whose values have been read are here deleted from the original content.
- step 20c the supplier 6 sends to the WEB site 5, with the reduced content, an identification reference and the descriptive information of the original content and to the machine 3, with the extract of additional content, the positions of the bytes noted forming the extract in the original content as well as the identification reference, the descrambling key and the descriptive information of the original content.
- the terminal 1 acquires the reduced content C IR by downloading from the WEB site 5. For this, using the browser 11, the terminal 1 connects to the WEB site 5 which provides it with the list of reduced content available. Under the control of a user, the terminal 1 selects the reduced content C ⁇ E and sends to site 5 a request for acquisition of the reduced content C ⁇ R selected. On receipt of this request, the site 5 sends to the terminal 1, via the Internet 9, the protected reduced conduit (that is to say, scrambled) selected CIR, the reference identifying the original content Ci and the descriptive information of this content Ci. The protected reduced content Cm as well as the identification reference and the descriptive information of the content Ci are stored in memory 131. The protected reduced content C ⁇ R thus acquired does not, in itself, to restore the original content Ci, even after descrambling. To restore the original content, the terminal 1 must recover the extract of additional content E C ⁇ .
- a step 22 the holder of the memory card 2 acquires rights to use the content Ci from his terminal 1.
- the holder of the card 2 introduces it in the reader 12 of the terminal 1 and thus connects the memory of the card 2 to the terminal 1.
- the terminal 1 connects to the URL address of the server 4, extracted from the memory card 2, and, in a step 22c, sends to the server 4 a request to purchase rights to use the content Ci.
- This request contains the identifier and the user confidential code, extracted of the memory card 2, as well as the identification reference of the content Ci.
- the server 4 in cooperation with the payment authorization center 7, performs the transaction then allocates to the card holder 2 the user rights required.
- the server 4 registers the rights of use of the user, relating to the content Ci, in its database 40. Instead of acquiring rights of use relating to the content Ci by connecting to the rights server 4, through the Internet 9, from its terminal 1, the holder of the memory card 2 could acquire rights to use content from the rights server 4, through the automaton 3, through the private network 8.
- Step 23 consists in recording the content extract E C ⁇ in the memory card 2.
- the user holder of the card 2 introduces the latter ci in the housing 34 of the automaton 3 and, in a step 23b, selects the content extract E C1 from a list of content extracts displayed by the automaton 3 on its screen 321.
- the PLC 3 stores in the memory card 2 the content extract E C ⁇ selected, the respective positions in the content Ci of the bytes whose values have been read, forming the content extract E ⁇ , the identification reference of the corresponding original content Ci, the descrambling key for this content Ci and possibly descriptive information relating to the content Ci.
- step 23 of recording the content extract E C ⁇ in the memory card 2 can be performed before step 21 of acquisition of the co reduced C ⁇ E.
- the memory card 2 therefore contains:
- steps 21, 22 and 23 are independent of one another, they can therefore be implemented in any order, unless the recording of a content extract in the memory card 2 to 1 is subject to 'prior purchase of usage rights in order to limit the risk of fraud.
- a step 24 under the command of the module 131, the terminal 1 performs verifications before restoring the content Ci.
- the user connects his memory card again at terminal 1, by introducing it into the card reader 12, and, in a step 24b, controls the reading of the content Ci, the extract of which E C ⁇ is contained in the memory 131.
- the terminal 1 verifies that the identification reference associated with the reduced content CI R stored in the memory 15 is identical to that associated with the content extract E C ⁇ stored in the memory of the card 12.
- the terminal 1 connects to the rights server 4 through In ternet 9 and sends it a request to obtain authorization to read, or use, the content C x .
- This request contains the identification reference of the content Ci as well as the identifier and the confidential code of the user holding the card 2.
- the server 4 searches the database 4 for usage rights of the user of terminal 1, using the user identifier and confidential code received, and verifies that terminal 1 has usage rights valid for the Ci content and, if this is the case, determines the remaining authorized usage period.
- the server 4 authorizes the reading of the content Ci by the terminal 1, by sending a notification of authorization to use the content indicating the remaining authorized usage duration.
- the terminal 1 triggers the reading of the content Ci.
- the terminal 1 reads the content Ci.
- the reconstitution and decoding module 132 i) combines the reduced content C ⁇ R , stored in the memory 15 , and the content extract E C ⁇ , stored in the memory of the card 2, using the indication of the respective positions of the bytes noted in the original content Ci contained in the memory card 2, ii) in a step 25b, descrambles the reconstituted content Ci using the descrambling key extracted from the memory card 2 and iii) in a step 25c, the terminal 1 restores the content Ci, in other words displays the video component of the content Ci on the screen 101 and broadcasts the audio component of the content Ci using the sound equipment 102.
- the terminal 1 regularly checks the validity of the usage rights of the terminal 1 relating to the content Ci, by calculating the remaining duration of use of the content Ci, using a stopwatch internal to the terminal 1 not shown. . After the expiration of the remaining authorized usage period received, the terminal prohibits the reading of the content. In the event of an interruption in the operation of terminal 1 before the expiration of the authorized usage period, terminal 1 must reconnect to the rights server 4 and ask again for permission to use the Ci content.
- the terminal 1 acquires the reduced content by downloading from a WEB site 5.
- the terminal 1 acquires the reduced content C m according to one of the following methods:
- the automaton 3 could provide the user with a memory medium containing the desired content extract and the information relating to the original content (positions of the bytes noted, identification reference , descrambling key), instead of storing this data in the user's personal memory card.
- the automaton could record in the storage medium the identifier and the confidential code of the user, supplied by the latter, or, as a variant, the user could enter his identifier and his confidential code in the reading terminal.
- the content extract could be saved in the memory medium at the end of the manufacturing of said medium.
- the distribution machine 3 could also distribute CD-ROMs, or other types of data carriers, containing reduced content.
- the content may not be confused, the bursting of the content allowing in itself to control access to the content.
- the content extract that is to say the values of bytes noted and the respective positions of these bytes in the original content.
- the corresponding descrambling key could be stored in the memory card 2.
- the terminal could acquire the reduced content in “streaming” mode, that is to say over the water, from 'a WEB site, and reconstitute, unscramble, decode and restore the content in real time, as and when the reduced content is received.
- the automaton 3 directly retrieves the content extracts from the supplier 6.
- the automaton 3 connects to the WEB site 5 in order to consult the reduced content available and, on request, the WEB site 5 tells him the address of the content provider 6 from which the corresponding content extracts are available.
- the recording of a content extract could be made conditional on memory card 2 upon the prior purchase of rights to use this content.
- the identification of the user, holder of the memory card 2 is carried out by recognition of his identifier and his confidential code.
- another mode of identification could be provided.
- the distribution machine 3 could comprise a module for acquiring extracts of content by downloading from a server providing extracts of content, such as the server 6.
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Storage Device Security (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Mobile Radio Communication Systems (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03718832A EP1474923B1 (fr) | 2002-02-15 | 2003-02-04 | Procede pour controler l'acces a un contenu par un terminal, terminal, serveur de droits d'usage, automate de distribution, serveur fournisseur, support de donnees et systeme associes |
AU2003222877A AU2003222877A1 (en) | 2002-02-15 | 2003-02-04 | Method for monitoring access to content by a terminal, terminal, user rights server, distribution automaton, supplier server, data medium, and system associated therewith |
DE60309434T DE60309434T2 (de) | 2002-02-15 | 2003-02-04 | Verfahren zum kontrollieren des zugriffs auf inhaltsdaten durch ein endgerät, endgerät, benutzungrechteserver, ausgabeautomat, bereitstellender server, datenträger und system dazu |
US10/504,669 US20050210531A1 (en) | 2002-02-15 | 2003-02-04 | Method for monitoring access to content by a terminal, a terminal, user rights server, distribution automation, supplier server, data medium and system associated therewith |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0201972A FR2836322B1 (fr) | 2002-02-15 | 2002-02-15 | Procede pour controler l'acces a un contenu par un terminal, terminal, serveur de droits d'usage, automate de distribution, serveur fournisseur, support de donnees et systeme associes |
FR02/01972 | 2002-02-15 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2003071798A2 true WO2003071798A2 (fr) | 2003-08-28 |
WO2003071798A3 WO2003071798A3 (fr) | 2003-11-13 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/FR2003/000338 WO2003071798A2 (fr) | 2002-02-15 | 2003-02-04 | Procede pour controler l'acces a un contenu par un terminal, terminal, serveur de droits d'usage, automate de distribution, serveur fournisseur, support de donnees et systeme associes |
Country Status (8)
Country | Link |
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US (1) | US20050210531A1 (fr) |
EP (1) | EP1474923B1 (fr) |
AT (1) | ATE344589T1 (fr) |
AU (1) | AU2003222877A1 (fr) |
DE (1) | DE60309434T2 (fr) |
ES (1) | ES2276057T3 (fr) |
FR (1) | FR2836322B1 (fr) |
WO (1) | WO2003071798A2 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4371848B2 (ja) * | 2003-03-28 | 2009-11-25 | キヤノン株式会社 | コンテンツ管理システム |
JP5417741B2 (ja) * | 2008-06-03 | 2014-02-19 | ソニー株式会社 | 受信装置、表示制御方法、およびプログラム |
US9317622B1 (en) * | 2010-08-17 | 2016-04-19 | Amazon Technologies, Inc. | Methods and systems for fragmenting and recombining content structured language data content to reduce latency of processing and rendering operations |
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GB2343049A (en) * | 1998-10-21 | 2000-04-26 | Martin John Baker | Digital audio or video playback arrangement and method of operation thereof |
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EP1109405A1 (fr) * | 1999-12-16 | 2001-06-20 | CANAL+ Société Anonyme | Communication avec récepteur/décodeur |
EP1244307A1 (fr) * | 2001-03-23 | 2002-09-25 | Koninklijke KPN N.V. | Procédé et système de sécurisation de stockage |
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FI100563B (fi) * | 1996-01-30 | 1997-12-31 | Nokia Oy Ab | Digitaalisten esitysobjektien salaus lähetyksessä ja tallennuksessa |
US6633982B1 (en) * | 1999-03-20 | 2003-10-14 | Wayne Samuel Kurzeja | Method and process for managing ultra secure electronic distribution of digital movies to commercial exhibitors |
US7124938B1 (en) * | 1999-03-24 | 2006-10-24 | Microsoft Corporation | Enhancing smart card usage for associating media content with households |
WO2002052473A1 (fr) * | 2000-12-27 | 2002-07-04 | Sony Corporation | Appareil d'enregistrement de donnees et appareil et procede d'enregistrement de donnees |
US6976166B2 (en) * | 2001-02-06 | 2005-12-13 | Hewlett-Packard Development Company, L.P. | Method and apparatus for partial encryption of content |
US7016496B2 (en) * | 2001-03-26 | 2006-03-21 | Sun Microsystems, Inc. | System and method for storing and accessing digital media content using smart card technology |
US20030079133A1 (en) * | 2001-10-18 | 2003-04-24 | International Business Machines Corporation | Method and system for digital rights management in content distribution application |
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2002
- 2002-02-15 FR FR0201972A patent/FR2836322B1/fr not_active Expired - Fee Related
-
2003
- 2003-02-04 EP EP03718832A patent/EP1474923B1/fr not_active Expired - Lifetime
- 2003-02-04 ES ES03718832T patent/ES2276057T3/es not_active Expired - Lifetime
- 2003-02-04 US US10/504,669 patent/US20050210531A1/en not_active Abandoned
- 2003-02-04 AU AU2003222877A patent/AU2003222877A1/en not_active Abandoned
- 2003-02-04 AT AT03718832T patent/ATE344589T1/de not_active IP Right Cessation
- 2003-02-04 WO PCT/FR2003/000338 patent/WO2003071798A2/fr active IP Right Grant
- 2003-02-04 DE DE60309434T patent/DE60309434T2/de not_active Expired - Fee Related
Patent Citations (4)
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GB2343049A (en) * | 1998-10-21 | 2000-04-26 | Martin John Baker | Digital audio or video playback arrangement and method of operation thereof |
JP2000195168A (ja) * | 1998-11-08 | 2000-07-14 | Lg Electronics Inc | デジタルデ―タストリ―ム管理情報生成記録方法及びその装置 |
EP1109405A1 (fr) * | 1999-12-16 | 2001-06-20 | CANAL+ Société Anonyme | Communication avec récepteur/décodeur |
EP1244307A1 (fr) * | 2001-03-23 | 2002-09-25 | Koninklijke KPN N.V. | Procédé et système de sécurisation de stockage |
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PATENT ABSTRACTS OF JAPAN vol. 2000, no. 10, 17 novembre 2000 (2000-11-17) & JP 2000 195168 A (LG ELECTRONICS INC), 14 juillet 2000 (2000-07-14) * |
Also Published As
Publication number | Publication date |
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EP1474923B1 (fr) | 2006-11-02 |
DE60309434D1 (de) | 2006-12-14 |
AU2003222877A1 (en) | 2003-09-09 |
FR2836322A1 (fr) | 2003-08-22 |
EP1474923A2 (fr) | 2004-11-10 |
ATE344589T1 (de) | 2006-11-15 |
FR2836322B1 (fr) | 2004-07-30 |
ES2276057T3 (es) | 2007-06-16 |
WO2003071798A3 (fr) | 2003-11-13 |
US20050210531A1 (en) | 2005-09-22 |
DE60309434T2 (de) | 2007-09-06 |
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