Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L63/00—Network architectures or network communication protocols for network security
  • H04L63/10—Network architectures or network communication protocols for network security for controlling access to devices or network resources
  • H04L63/105—Multiple levels of security
• • G—PHYSICS
  • G06—COMPUTING; CALCULATING OR COUNTING
  • G06F—ELECTRIC DIGITAL DATA PROCESSING
  • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
  • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
• • G—PHYSICS
  • G06—COMPUTING; CALCULATING OR COUNTING
  • G06F—ELECTRIC DIGITAL DATA PROCESSING
  • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
  • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
  • G06F21/101—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM] by binding digital rights to specific entities
  • G06F21/1011—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM] by binding digital rights to specific entities to devices
• • G—PHYSICS
  • G06—COMPUTING; CALCULATING OR COUNTING
  • G06F—ELECTRIC DIGITAL DATA PROCESSING
  • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
  • G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
  • G06F21/16—Program or content traceability, e.g. by watermarking

Definitions

• the invention lies in the field of multimedia content protection.
• the invention relates to the protection of audio, picture, video content created by a user from his terminal, for example smartphone-type devices (for smartphones), cameras, PCs or content stored on his computer. terminal.
• his terminal for example smartphone-type devices (for smartphones), cameras, PCs or content stored on his computer. terminal.
• DRM Digital Rights Management
• content protection techniques are used by content providers to protect and give certain rights to users of artistic works. These techniques use a licensing system that a user must acquire in order to access content. When downloading the content, the terminal must check with a license server if the user has actually acquired the rights to the content.
• the document WO2008 / 006821 proposes a method of controlled sharing of personal data between a first terminal of a first user and a second terminal of a second user.
• the second terminal issues a request to a correspondence server to obtain a reference relating to the first user.
• This reference characterizes the user with whom it is associated and is anonymous so that another user does not know it.
• the second terminal then sends a request for data sharing request to the first terminal.
• the first terminal stores a reference relating to the second user in association with the shared personal data, and sends to the second terminal the shared personal data and a reference relating to the first user.
• the second terminal Upon reception of the data, the second terminal stores the shared personal data in association with the reference relating to the first user.
• the first user can control the data that he has shared with the second user by using control commands transmitted to the second terminal and making it possible to update or delete the shared data.
• This method is complex for the first user because the control of access to the personal data of the first user must be performed each time a user sends a sharing request to the first user.
• This method requires the implementation of a correspondence server to manage the references to the users.
• this method does not allow the first user to control the access of other users to the data shared with the second user.
• the invention comes in particular to remedy the aforementioned drawbacks of the state of the art.
• the invention proposes for this purpose a method for transmitting controlled access multimedia content to at least one destination terminal.
• the method comprises a step of insertion into a file containing the multimedia content of at least one identifier relating to the destination terminal or to the user of the destination terminal, the identifier being intended to control access to the multimedia content by the terminal recipient, and a step of sending the file to at least the destination terminal.
• the invention also relates to a device for transmitting to at least one destination terminal, a controlled access multimedia content.
• the transmission device comprises means for insertion into a file containing the multimedia content of at least one identifier relating to the destination terminal or to the user of the destination terminal, the identifier being intended to control access to the multimedia content by the destination terminal, and means for sending the file to at least the destination terminal.
• the method and the transmission device according to the invention make it possible to simply and automatically secure the contents that a user wishes to transmit to another user. Thanks to the invention, only the recipient users whose identifier has been inserted into the content will be able to access the content.
• the method and the transmission device according to the invention make it possible to secure the contents of a user without the need for the presence of a server controlling the authorization of access to the content by recipient users.
• the user who owns the content no longer has to intervene on the file to secure access to the multimedia content.
• the user does not need to set access rights to the content for a recipient user for each request to share the content.
• the invention applies to any type of multimedia content: image, sound, text, video, graphics.
• image, sound, text, video, graphics The various modes or features of realization mentioned hereafter can be added independently or in combination with each other, to the steps of the method of transmission defined above.
• the insertion step is made during the creation of the multimedia content by the content creation terminal.
• This embodiment makes the use of the method simpler for the user who generates content with his terminal. The user does not have to intervene later on the file of the multimedia contents to secure the access to the contents.
• the insertion step is made during a communication in progress between a sender terminal of the multimedia content and a destination terminal.
• the method allows via the use of the identifiers of the interlocutor used for the current communication to position in a simple manner access rights to the content for the interlocutor.
• these access rights can be set for a limited duration or a single reading of the content.
• the identifier relating to the destination terminal or to the user of the destination terminal is an identifier contained in an address book stored in the sending terminal of the multimedia content or in a remote device. .
• the positioning of the access rights to the content is automatic for the contacts of the user who has the content to be secured.
• the configuration of the access rights can thus be made for one or more contacts of the user at one time.
• the method further comprises a step of insertion in the file containing the multimedia content of at least one identifier relating to the terminal creator of the multimedia content or the user of the terminal creator multimedia content.
• the user's terminal which has a multimedia content to be secured can thus check whether a user wishing to modify the access rights to the content is authorized to do so.
• This embodiment also makes it possible to control the terminal which modifies the access rights, depending on whether the user who owns the content wishes or does not wish this modification to be carried out from a terminal different from the terminal which has been used. to create the file.
• the identifier relating to the destination terminal or to the user of the destination terminal and / or the identifier relating to the creator terminal or to the user of the terminal creating the multimedia content belongs to the group comprising:
• IP address for Internet Protocol in English
• the identifier may thus relate to a personal equipment of the user, or to an account of the user (messaging, social network, client ).
• the recipient can also be a website (photo / video sharing site, social network).
• the destination terminal of the multimedia content that controls the access rights to the content can thus check the access rights from identifiers to which it has easy access, for example an identifier of the user or the terminal stored in an internal memory of the terminal or on the SIM card (for Subscriber Identity Module in English) of the terminal.
• the transmission method further comprises:
• a step of determining at least one rule for using the multimedia content associated with the destination terminal or the user of the destination terminal a step of inserting into the file information representative of the at least one rule of determined use.
• the recipient can thus have rights of management of the contents: reading, modification, deletion, local recording, external, sharing, transfer.
• the user who owns the content to be secured controls the access and use that is made of the multimedia content according to the recipient.
• the determination of the at least one usage rule is performed according to a history of communications exchanged between the sending terminal of the multimedia content and the destination terminal.
• the usage rule is determined automatically. It may be different depending on the frequency and the number of calls that have been exchanged between the sender terminal and the destination terminal, or the time elapsed since the last exchange.
• the transmission method comprises, prior to the step of inserting into the file an identifier relating to the destination terminal or to the user of the destination terminal:
• the transmission method verifies that the sender terminal is authorized to do so.
• This particular embodiment of the invention makes it possible to limit the number of terminals that can modify the access rights to the file. Only the terminals or users with a modification right indicated in the file will be able to modify it.
• the transmission method comprises, prior to the step of sending the file, a verification step in the file of the presence of an identifier relative to the destination terminal or to the user of the destination terminal.
• This particular embodiment of the invention makes it possible to ensure that the recipient who receives the file can actually have access to the multimedia content. If no identifier relating to the recipient is present in the file, according to the rights of use of the file granted to the sender, the sender may add a recipient identifier in the file to give him access to the multimedia content. This particular embodiment of the invention also makes it possible to limit the successive transfers of the file to recipients unknown or unwanted initially by the creator of the file.
• the invention also relates to a method of reception by a destination terminal of a file containing controlled access multimedia content.
• the reception method comprises:
• a step of controlling access to the multimedia content by the destination terminal the checking step being implemented by checking the presence in the received file of an identifier relating to the destination terminal or to the terminal user; recipient,
• a step of accessing the multimedia content contained in the received file in the case of the presence in the received file of an identifier relating to the destination terminal or the user of the destination terminal, a step of accessing the multimedia content contained in the received file.
• the invention also relates to a device for receiving a file containing controlled access multimedia content.
• the reception device comprises means for controlling access to the multimedia content, means for checking the presence in the file received of an identifier relating to the reception device or to a user of the reception device, and means for access to the multimedia content contained in the received file, the access means being activated in the case of the presence in the received file of an identifier relating to the receiving device or a user of the receiving device.
• a terminal having received the file or a user of this terminal must have previously been authorized by the creator of the file or a user having the right to modify the file, to have access to the multimedia content.
• the invention also relates to a terminal comprising a transmission device according to any one of the embodiments mentioned above.
• the invention also relates to a terminal comprising a receiving device according to any one of the embodiments mentioned above.
• the invention also relates to a terminal comprising a transmission device and a receiving device according to any one of the embodiments mentioned above.
• the invention also relates to a computer program comprising program code instructions for executing the steps of the transmission method according to any one of the embodiments mentioned above, when the program is executed by a processor.
• the invention also relates to a computer program comprising program code instructions for performing the steps of the receiving method according to any one of the embodiments mentioned above, when the program is executed by a processor.
• the invention also relates to a digital data signal to a terminal, comprising controlled access multimedia content.
• the signal comprises an identifier relating to the terminal or a user of the terminal, the identifier being intended to control the access by the terminal to the multimedia content.
• Such a signal can protect multimedia content from users or terminals that would try to access multimedia content without being able to access it. allowed.
• the multimedia content of the signal can not be read or opened by a user or a terminal whose identifier is not present in the signal.
• FIG. 1 illustrates an implementation environment of a particular embodiment of the invention
• FIG. 2 illustrates steps of the method of transmitting a multimedia content according to a particular embodiment of the invention
• FIG. 3 illustrates steps of the method of transmitting a multimedia content according to another particular embodiment of the invention
• FIG. 4 illustrates a device making it possible to implement the method of transmitting a multimedia content according to a particular embodiment of the invention
• FIG. 5 illustrates steps of the method of receiving a file containing a multimedia content according to a particular embodiment of the invention
• FIG. 6 illustrates a device making it possible to implement the method of receiving a file containing a multimedia content according to a particular embodiment of the invention
• FIG. 7 illustrates a digital data signal according to a particular embodiment of the invention.
• Figure 1 illustrates an implementation environment of a particular embodiment of the invention.
• the invention aims to protect the multimedia contents created by a user UA from his various multimedia equipment 1 1, 14, 15.
• Such equipment may for example be a digital camera, a digital camera, a mobile phone, a tablet, a personal computer.
• Multimedia content here means any type of content that a device can generate: an image, photo, video, sound, text.
• the UA user can for example use his digital camera 14 to take a picture and store it on his personal computer 1 1 or use his smartphone 15 to create multimedia content.
• the user UA may then wish to make the multimedia content that he has created available to a recipient (UB, 12, 13), while retaining control over the access to this content by other users and a control the use of content that is made by users who have access to the content.
• a recipient means a user UB, a site or an Internet page stored for example on the server 13 or a terminal 12 of a user UB.
• the user UA can send the multimedia content to a terminal 12 of another user UB according to any communication mode through a telecommunications network 10.
• the user UA can also make the content available by sharing it. or by publishing it on a web page stored on a server 13 connected to the telecommunications network 10.
• the telecommunications network 10 may correspond, for example, to an IP network (for Internet Protocol in English) or a mobile telecommunications network of GSM, EDGE, 3G, 3G + type ...
• the communication network 10 represented may correspond to a group of communication networks of different operators interconnected to each other for exchanging data and establishing communications between terminals connected to the communication network 10 via access points (not shown) to the communication network.
• the UA user can control the access of other users to the content. Indeed, only the recipients whose identifier has been inserted into the file containing the content will be able to access the content.
• the user UA can also control the use of the content that will make the users who have access to it by inserting into the file containing the multimedia content of usage rules associated with one or more recipients.
• the UA user can thus authorize a recipient to read the content, modify it, transfer it.
• the user UB can access the multimedia content according to the user AU has authorized him.
• the user UB can for example receive the file transmitted by the terminal 1 1 of the user UA on his terminal 12, or view the multimedia content on an Internet page stored on the server 13.
• FIG. 2 illustrates steps of the method for transmitting controlled access multimedia content according to a particular embodiment of the invention.
• the multimedia content is created in a manner known by the user UA using one of his multimedia equipments 14, 15, 1 1.
• the transmission method is implemented by the terminal that has been used to create the multimedia content.
• the transmission method can also be implemented by another terminal to which the multimedia content has been transferred in a known manner via a communication means, for example a file transfer over a wired or wireless local network, or over an Internet network.
• the method includes a step of inserting into a file containing the multimedia content of an identifier relating to the recipient.
• the term recipient is here used to represent a destination terminal or a user of a destination terminal of the multimedia content.
• the method may insert an identifier relating to a recipient.
• the method can also insert an identifier relating to several recipients.
• the method may also insert several identifiers relating to a recipient.
• the identifier for a recipient is inserted in the file containing the multimedia content in the form of metadata.
• the file contains at least two parts: a part comprising the metadata relating to the rights of access to the multimedia content, and a part comprising the multimedia content.
• the identifier relating to the recipient is inserted in the part of the file comprising the metadata relating to the access rights.
• the portion of the file comprising the access rights metadata contains a field entitled, for example, "authorized-access” followed by a list of at least one identifier relating to a recipient.
• the identifier relating to the recipient can be:
• IMEI international mobile device identification number
• MAC address for Media Access Control in English
• IP address to identify a terminal connected to an IP network.
• the method can insert several different identifiers relating to the same recipient so that the recipient can access the content from different terminals or from different access services to content. For example, the method can insert:
• the identifier relating to the recipient is an identifier stored in an address book associated with the user UA.
• the address book may be a local address book stored in the memory of the terminal 15 or 1 1, or an address book stored on a server of the network and to which the terminal has access.
• the insertion step is made during the creation of the multimedia content.
• the method automatically inserts the identifiers of the recipients that the user UA has defined as the recipient of the multimedia content.
• the user UA can define the recipients of the content on the fly at the time of creation of the content or beforehand by creating lists of recipients stored in the terminal for example.
• the user UA can mark the contacts of his address book with an indication indicating the contact as a person of confidence.
• the contacts thus marked form a group of recipients whose identifiers are automatically inserted into the file containing the multimedia content when it is created.
• the user UA defines the identifier relative to the recipient by entering the information using an application that displays a dialogue window during the creation of the multimedia content or when the user UA wishes to transmit the multimedia content.
• the method comprises a step 21 of insertion in the file containing the multimedia content of at least one identifier relating to the creator of the multimedia content.
• creator is here used to represent a creator terminal or a user of a terminal creator of the multimedia content.
• An additional field is inserted in the metadata of the file, entitled for example "owner”, as illustrated by the reference PRO in FIG. 7. This field is followed by at least one identifier relative to the creator (IUA, IT15 on the Figure 7).
• the identifiers inserted in the "owner" field make it possible to determine if a user is authorized to modify the file.
• the creator user is allowed to edit the media content he has created or the access rights to the media content.
• the method checks whether the user is the creator user that is indicated in the "owner" field of the file. .
• the identifier relating to the creator may correspond to an identifier relative to the terminal of the user UA that has been used for the creation of the multimedia content, for example to an international identification number (IMEI) if the terminal is a mobile terminal, or an address of a network interface card (MAC address) or a serial number of a terminal.
• IMEI international identification number
• MAC address network interface card
• serial number a serial number of a terminal.
• the insertion of an identifier of the terminal used for the creation of the multimedia content can be done automatically at the time of creation of the multimedia content by the terminal.
• the multimedia content created by a user is automatically marked by the terminal that was used to create this multimedia content.
• the creator user does not have to manually mark his or her multimedia content or each media creation.
• the identifiers inserted in the "owner" field make it possible to determine from which terminal the creator user can modify the file.
• the multimedia content may have been created by a first terminal of the creator user and may be modified by another terminal.
• the user creator may wish that only the terminal used for the creation of the multimedia content is authorized to modify the multimedia content.
• the identifier may also correspond to an identifier relative to the user UA, for example a telephone number to which the user can be attached or an email address of the user UA, or to a SIP URI address.
• the creator user can use any device to modify the media content or access rights to the media content.
• the creator user To modify the multimedia content or access rights to the multimedia content, the creator user must be identified with the application that makes it possible to open the file containing the multimedia content with the identifier inserted in the "owner" field.
• the "owner" field may also contain several identifiers relating to the creator so that the creator user has several means of modifying the file containing the multimedia content.
• the transmission method comprises a step 22 of determining at least one rule of use of the multimedia content associated with the destination terminal or the user of the destination terminal.
• a rule for using the multimedia content corresponds to a processing that the recipient terminal or the destination user can perform on the multimedia content.
• the treatments performed on the multimedia content may for example correspond to:
• This treatment can be accompanied by a parameter of the number of times the recipient can perform this treatment: once, N times, an unlimited number of times.
• This processing may be accompanied by the identifiers of the authorized users or terminals concerned by the sharing.
• the recipient identifier inserted in the metadata corresponds to the identifier of the recipient user on the social network
• the associated usage rule is "shared"
• the parameter associated with this rule is for example "friends”.
• This metadata indicates that the media content can be shared on the social network for social network users belonging to the recipient's friends group defined in the social network.
• this processing may be accompanied by a parameter determining when the content is deleted: after the single reading of the content, after N readings, after a given date.
• This processing may be accompanied by an identifier of the authorized applications for carrying out this transmission, for example an electronic messaging software, a telephony application, and communication protocols.
• modification of the file this processing can be accompanied by the type of modification allowed: for example the addition of recipients in the metadata of the file, the modification of the multimedia content.
• the determination of a rule of use is performed manually by the user creator of the multimedia content.
• the creator user can determine the same usage rules for all recipients.
• the creator user can also refine the determination of usage rules by recipient or group of recipients.
• the determination of a usage rule is performed automatically when inserting an identifier relating to a recipient according to a predetermined criterion.
• the determination of a usage rule is made according to a group to which the recipient belongs.
• Default usage rules are defined beforehand for groups of recipients. For example, recipients marked as trusted can benefit from usage rules such as: unlimited reading of content, transmission of content to other recipients, recording of content.
• the determination of a usage rule is made based on a history of communications exchanged between the sending terminal and the destination terminal.
• a recipient with whom the sender is communicating for the first time will only be entitled to a single read of the content and deletion of the content after the single read.
• a recipient with whom the sender communicates often will be entitled to N times.
• the method comprises a step 23 of insertion in the file of information representative of the at least one determined use rule.
• the information representative of the at least one determined usage rule is inserted into the metadata of the file following the identifier relating to the recipient with which it is associated, as illustrated by the references DU1, DU2 , DUi of Figure 7.
• the information representative of the at least one determined usage rule is inserted into the metadata of the file in a field entitled for example "rights of use”.
• the same usage rules are associated with all the recipients whose identifier has been inserted into the metadata of the file.
• the method then comprises a step 24 of sending the file to at least the destination terminal.
• the shipment of the file may correspond to a transmission of the file to the destination terminal in any known form of communication, such as for example: an electronic message, an SMS (for Short Message Service in English), a file transfer according to a known FTP protocol, (for File Transfer Protocol in English), http (for HyperText Transfer Protocol in English), RCS (for Rich Communication Service in English), a local communication via the Bluetooth® protocol or the WIFI protocol.
• the destination terminal corresponds to a storage server, for example a server hosting an Internet site allowing the sharing of content to other users, such as a photo sharing site, a video sharing site, a social networking site.
• a storage server for example a server hosting an Internet site allowing the sharing of content to other users, such as a photo sharing site, a video sharing site, a social networking site.
• FIG. 3 illustrates steps of the method for transmitting controlled access multimedia content according to another particular embodiment of the invention.
• the user UA has a multimedia content on his terminal 15 shown in FIG.
• a communication is established in a known manner between the terminal 15 of the user UA and the terminal 12 of the user UB, with reference to FIG.
• the communication is established for example by a GSM circuit communication (for Global System for Mobile Communications in English) or VoIP communication SIP (for Voice Over IP in English).
• GSM circuit communication for Global System for Mobile Communications in English
• VoIP communication SIP for Voice Over IP in English.
• the user UA wishes to share with the user UB the multimedia content stored on his terminal 1 5.
• the user UA uses the function "photo sharing RCS" of the communication application executed on his
• the terminal 15 displays to the user UA an interface allowing the user UA to select the multimedia content that he wishes to transmit to the user UB. On the interface, the UA user also selects the "share" communication option.
• the communication application executed on the terminal 15 checks whether the user UA is authorized to share the multimedia content.
• the communication application checks whether an identifier of the user UA or the terminal 15 is present in the "owner" field of the metadata of the file.
• the communication application can for example check the presence of the telephone number of the user UA or the IMEI number of the terminal 1 5.
• the communication application checks whether a of these identifiers is present in the "owner" field of the file's metadata.
• the communication application checks whether at least one identifier of the user UA or the terminal 1 5 is present in the "have-access" field of the file's metadata. If an identifier of the user UA or the terminal 15 is present, the communication application checks whether a usage rule authorizing the sharing of the multimedia content via the "photo sharing RCS" function is associated with the present identifier. If so, the UA user is allowed to share the media content. Otherwise, the UA user is not allowed to share the media content.
• the method continues with a step 32 in which the communication application executed on the terminal 1 5 checks in the file containing the multimedia content the presence of an identifier relative to the terminal 12 or the user UB of the terminal 12.
• the terminal 15 being in communication with the terminal 12, the telephone number of the user UB is known to the terminal 1 5.
• the communication application checks whether the telephone number of the user UB is present in the "authorized-access" field of the metadata of the file.
• the communication application checks whether one of these identifiers is present in the field "Have-access rights" file metadata.
• the communication application transfers the file containing the multimedia content to the terminal 12 of the user UB, in accordance with the RCS standard, during a step 24.
• the communication application executed on the terminal 15 displays to the user UA a window indicating that the user UB is not authorized to have access to multimedia content.
• step 33 the communication application checks whether the user UA is authorized to modify the metadata of the file containing the multimedia content. If in step 31, the communication application has determined that the user UA is the user owning the multimedia content, then the user UA is allowed to modify the metadata.
• the communication application verifies in the metadata of the file whether a usage rule authorizing the modification of the metadata is associated with an identifier of the user UA or in the terminal 15. In the step 33, the communication application then proposes to the user UA either to cancel the sharing of the multimedia content to the user UB, or to add the user UB as having access rights in the metadata of the file if the UA user is authorized. If the user UA chooses to cancel the sharing, or if he is not authorized to modify the metadata, during a step 34, the communication application ends the content sharing process via the "photo" function. sharing RCS "and the file is not transmitted to the terminal 12.
• the communication application inserts during a step 20 'at least one identifier relative to the terminal 12 or to the UB user in the "have-access" field of the file's metadata.
• the usage rule associated with the identifier inserted during step 20 corresponds to the reading of the content.
• the user UA can define other usage rules associated with the identifier inserted during the step 20 '.
• the communication application transfers the file containing the multimedia content to the terminal 12 of the user UB, in accordance with the RCS standard, during a step 24 '.
• FIG. 4 illustrates a device 40 making it possible to implement the method of transmitting a controlled access multimedia content according to a particular embodiment of the invention.
• the device comprises a storage space 42, for example a memory (MEM), a processing unit 43, equipped for example with a microprocessor (PROC), and driven by the computer program (PG) 41, implementing the method of transmitting a controlled access multimedia content to at least one destination terminal as described in the invention in connection with FIG. 2 or FIG.
• MEM memory
• PROC microprocessor
• PG computer program
• the code instructions of the computer program 41 are for example loaded into memory before being executed by the processor of the processing unit 43.
• the microprocessor of the processing unit 43 implements the steps of the method of transmitting controlled access multimedia content to at least one destination terminal, and in particular the steps of insertion in a file containing the multimedia content of at least one identifier relative to the destination terminal or to the user of the receiving terminal, the identifier being intended to control access to the multimedia content by the destination terminal, and sending the file to at least the destination terminal, according to the instructions of the computer program 41.
• the storage space 42 also makes it possible, for example, to store the multimedia content with controlled access.
• the storage space 42 also makes it possible to store a contact address book of a user of the device.
• the device also includes a user interface 44 (I / O) allowing the user to interact with the device 40.
• This user interface can for example correspond to a keyboard, a mouse, or a touch screen.
• the device also comprises a display means 45 (AFF) for example for displaying to the user of the device a multimedia content, interaction windows with a software application executed by the device.
• AFF display means 45
• the device also comprises a network access unit 46 (COM) allowing, for example, the device 40 to access the Internet or to establish communications via different communication networks, such as for example a mobile telephone network, a network computer, or a satellite network.
• COM network access unit 46
• the device 40 is included in a terminal such as for example a personal computer, fixed or mobile, a mobile phone, a tablet, a camera or a digital camera communicating.
• a terminal such as for example a personal computer, fixed or mobile, a mobile phone, a tablet, a camera or a digital camera communicating.
• FIG. 5 illustrates steps of the method of receiving a file containing controlled access multimedia content according to a particular embodiment of the invention.
• the method is implemented by a destination terminal, for example the terminal 12 of the user U B in connection with FIG.
• the terminal 12 receives, during a step 50, a file containing controlled access multimedia content.
• the received file has for example been transmitted by the terminal 1 1 or 15 of the user UA according to a particular embodiment of the method of transmission of controlled access multimedia content as described in relation to Figure 2 or 3.
• the terminal 12 may have received the file containing the multimedia content by a data transfer on a local network or from an external storage space connected to the terminal 12, for example a USB key.
• the terminal 12 receives from a mail server the file stored on the server using a messaging application executed by the terminal.
• MMS Multimedia Message Service
• the telephony application executed on the terminal 12 downloads in a known manner, from the dispatch terminal the file sent.
• the file is stored in memory on the terminal 12.
• the terminal 12 then implements a step 51 for controlling the access to the multimedia content.
• the checking step is implemented by checking the presence in the received file of an identifier relating to the destination terminal 12 or to the user UB of the destination terminal.
• An identifier relating to the terminal 12 may correspond to the IMEI number of the terminal.
• An identifier relative to the user UB may correspond to the telephone number of the user U B or an e-mail address.
• At least one identifier relating to the destination terminal or to the destination user is stored in a memory of the terminal 12 or on the SIM card of the terminal 12.
• the terminal 12 scans the received file and checks whether at least one identifier relating to the recipient is present in the "authorized-access" field of the file.
• the terminal 12 implements a step 52 of access to the multimedia content contained in the received file.
• this step corresponds for example to the opening of the message by the messaging application, or reading the message in the case of a voice message for example.
• the access step corresponds, for example, to the display of the content on the screen of the destination terminal.
• the terminal 12 deletes the recorded file.
• the terminal 12 initially receives only the metadata of the file containing the multimedia content.
• the multimedia content is then downloaded and stored in memory on the terminal in the case of the presence in the received file of an identifier relating to the recipient.
• the access step corresponds in particular to the reception of the multimedia content on the terminal 12.
• the terminal 12 also reads in the file information representative of at least one usage rule associated with the identifier relative to the recipient and stores in memory this information in association with the received file or an indicator pointing to the received file.
• the UB user will be able to perform various actions on the multimedia content from the terminal 12.
• a rule of use in the file associated with the identifier of the recipient may be access or reading limited to once or N times.
• the terminal 12 initiates a read counter to zero.
• the terminal 12 increments the counter.
• the counter reaches the maximum number of accesses to the authorized multimedia content, access to the multimedia content is no longer allowed.
• the terminal 12 deletes from the storage memory the file containing the multimedia content.
• the terminal 12 After reading the usage rules associated with the identifier relating to the recipient, the terminal 12 displays to the user according to the rights granted, the possible actions on the multimedia content.
• this display can be in the form of a menu containing the possible actions. Unauthorized actions are not displayed.
• the "save" menu only appears if the recording is allowed.
• the file containing the controlled access multimedia content may have been sent to a server hosting for example a site for sharing multimedia content.
• the Internet browser of the terminal 12 for displaying the Internet page of the content sharing site downloads in a known manner the Internet page containing a link to the multimedia content.
• the Internet browser also downloads in a known manner the file containing the multimedia content.
• the browser checks in step 51, if the domain name or the URL corresponding to the website is present in the field "entitled-use" metadata of the file of the multimedia content. If this is the case, the Internet browser displays the multimedia content on the terminal 12.
• possible actions such as for example the recording or the transfer of the multimedia content are displayed. according to the rules of use indicated in the metadata associated with the identifier relative to the recipient in the file and read by the Internet browser.
• the access to the multimedia content is implemented by checking the presence of an identifier relating to the content sharing site and then checking the presence of a user-related identifier displaying the content sharing web page.
• the identifier relative to the user corresponds example to the identifier allowing him to identify himself on the site of content sharing.
• FIG. 6 illustrates a device 60 making it possible to implement the method of receiving a file containing a controlled access multimedia content according to a particular embodiment of the invention.
• the device comprises a storage space 62, for example a memory (MEM), a processing unit 63, equipped for example with a microprocessor (PROC), and driven by the computer program (PG) 61, implementing the method of receiving controlled access multimedia content as described in the invention in relation with FIG. 5.
• a storage space 62 for example a memory (MEM)
• a processing unit 63 equipped for example with a microprocessor (PROC)
• PROC microprocessor
• PG computer program
• the code instructions of the computer program 61 are for example loaded into memory before being executed by the processor of the processing unit 63.
• the microprocessor of the processing unit 63 implements the steps of the method of receiving controlled access multimedia content in a destination terminal, and in particular the steps of controlling access to the multimedia content, checking the presence in the received file of an identifier relating to the destination terminal or to the user of the destination terminal, and in the case of the presence in the received file of an identifier relating to the destination terminal or to the user of the destination terminal, access to the multimedia content contained in the received file, according to the instructions of the computer program 61.
• the storage space 62 also makes it possible to store the controlled access multimedia content.
• the device also includes a user interface 64 (I / O) allowing the user to interact with the device 60.
• This user interface can for example correspond to a keyboard, a mouse, or a touch screen.
• the device also comprises a display means 65 (AFF) for example for displaying to the user of the device a multimedia content or interaction windows with a software application executed by the device.
• AFF display means 65
• the device also comprises a network access unit 66 (COM) enabling, for example, the device 60 to access the Internet or to establish communications via various communication networks, such as for example a mobile telephone network, a network computer, or a satellite network.
• COM network access unit 66
• the device 60 is included in a terminal such as for example a personal computer, fixed or mobile, a mobile phone, a tablet, a camera or a digital camera communicating.
• a terminal such as for example a personal computer, fixed or mobile, a mobile phone, a tablet, a camera or a digital camera communicating.
• Figure 7 illustrates a digital data signal according to a particular embodiment.
• the signal is intended to be transmitted to a destination terminal.
• the signal has been generated by the transmission of a file comprising a controlled access multimedia content according to a mode particular embodiment of the file transmission method as described in connection with Figures 2 or 3.
• the reception of the signal by the destination terminal can be implemented according to a particular embodiment of the method of receiving the file as described in relation to FIG. 5.
• the signal of FIG. 7 represents a file comprising controlled access multimedia content CM.
• the signal also includes MD metadata.
• the MD metadata includes an ADA field signaling a list of right-holders of access to the multimedia content;
• the ADA field is followed by a list of at least one identifier ID1, ID2 relating to a destination terminal of the multimedia content or to the user of the destination terminal of the multimedia content.
• the identifier ID1, ID2 relating to a destination terminal or to the user of the destination terminal is intended to control access to the multimedia content by the signal receiving terminal.
• the identifiers relating to the destination terminal or to the user of the destination terminal are followed by a list of at least one usage rule DU 1, DU2, DU i allowing to indicate the authorized actions that may be performed on the multimedia content by the signal receiving terminal.
• the identifier ID1 is followed by the usage rules DU1 and DU2, the identifier ID2 is followed by the usage rule DU1.
• the MD metadata file includes a PRO field indicating the list of identifiers of the user creator of the multimedia content or the terminal of the user creator.
• the field PRO is followed by a list of at least one identifier relating to the terminal creator of the multimedia content or the user of the terminal creator of the multimedia content.
• the field PRO is followed by an identifier IUA relative to the user UA of FIG. 1 and an identifier IT15 relative to the terminal 15 of the user UA of FIG.

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• 2013
  • 2013-03-28 FR FR1352800A patent/FR3003974A1/fr not_active Withdrawn
• 2014
  • 2014-03-25 EP EP14718672.0A patent/EP2979215A1/de not_active Withdrawn
  • 2014-03-25 CN CN201480019035.8A patent/CN105074711A/zh active Pending
  • 2014-03-25 WO PCT/FR2014/050700 patent/WO2014155000A1/fr active Application Filing
  • 2014-03-25 US US14/773,723 patent/US20160044043A1/en not_active Abandoned

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