FR2871259A1 - PROCESS FOR PRODUCING A HYPERMEDIA PRODUCT - Google Patents

Abstract

The present invention relates to a method of manufacturing a hypermedia product consisting of slaving at least one digital audiovisual acquisition device by a computer characterized in that it comprises: • a first step of construction of a structured form • a second step of constructing a guide for collecting the three sets of information of said form • a step of personalizing said form pertaining to the partial collection of the first set of information of said form, • steps of interpretation of said guide to generate the dialogue commands with the digital audiovisual acquisition device resulting from the first set of information of said guide • a preview step of a temporary hypermedia product • a step of generation of the hypermedia product after validation of the entire provisional hypermedia product.

Description

PROCESS FOR PRODUCING A HYPERMEDIA PRODUCT

  The present invention relates to capturing and editing of still and animated images with sound, indexing of still and animated images with sound, navigation in sound and still image banks, technologies of hypermedia, systems geographic information and broadcasting over high and low networks of still and animated sound images.

  It is known in the state of the art the French patent FR0112211 which relates to a generic method for constituting, updating and consulting a bank of hypermedia products searchable by electronic means, georeferenced, incorporating the definition of a hypermedia capture device, consisting of a video form, a prompter system for guiding the contributor completing this form, a system for indexing and editing data, a system for controlling and integrating editorial content, a system hypervideo navigation and end-user services, and implementation in a geographic information system.

  This prior French patent protects and describes a method for taking animated images comprising: a step of constituting a digital form comprising a set of time fields to be recorded in said time fields with set information, and a driving step a shooting equipment by associated equipment using said digital form to control the operation of the shooting equipment according to the set information, É a step of recording additional information in said form at the moment shooting corresponding to the sequence delimited by the time information.

  The present invention relates to an improvement of the method described in this French patent, in order to improve the integration of audiovisual content and to facilitate the manipulation of this digital content.

  The method according to the invention aims to provide assistance to audiovisual production, embodied in one or more guides linked to a form, and to articulate the audiovisual content to the digital representation of the territory. The digital transforms the representation of time (audiovisual) and the representation of space (territory and cartography). The objective is to propose a way of navigating the audiovisual time articulated to a navigation in the cartographic space.

  For this purpose, the invention relates, in its most general sense, to a method of manufacturing a hypermedia product consisting in servocating at least one digital audiovisual acquisition device by a computer characterized in that it comprises: a first step constructing a structured form comprising o a first series of information relating to the 30 contents to be acquired, o a second series of information relating to the formatting of said contents, o a third series of information relating to the aggregation, the setting in form and editing of the hypermedia product.

  É a second step in the construction of a guide for the collection of the three sets of information of the form including: o a first set of information relating to the right to read and write on each element of the three sets of information of that form, as well as 'to the order, the modes of acquisition and the syntactic and semantic constraints to be applied for the collection of the three sets of information of the form, o a second series of information relating to the ergonomics of the screens. These screens are used for the dialogue between the digital audiovisual acquisition device and the user, o a third series of information relating to the status of the tasks to be performed for the information of the three sets of information of said form.

  A step of personalizing said form pertaining to the partial collection of the first set of information of said form, and steps of interpretation of said guide for: generating the dialogue commands with the digital audiovisual acquisition device resulting from the first series of information of said guide, o acquiring contextual information pertaining to the first and third series of information of said form to which said guide is associated, o updating the third set of information of said guide by informing the status of acknowledging the tasks performing and updating the first and third sets of information of said form by recording, in a content base, the data acquired by the digital audiovisual acquisition device and by the dialog commands, with an indexation defined by the first information from the form.

  A step of previewing a temporary hypermedia product resulting from the combination of the data acquired in accordance with the second and third series of information of said form, and validation after possible modifications; a step of generating the hypermedia product after validation of the entire temporary hypermedia product of informing the structured form with the addresses of the data acquired by the digital audiovisual acquisition device.

  Advantageously, the method according to the invention comprises complementary steps of acquisition of external data and recording in the content base, with an indexing defined by the first information of said form.

  These external means may comprise: E a geolocation means, É a time stamping means, É a sound recording means, É a sound recording means converted to text, É a text taking means, É a means of recording, acquisition of graphic information, E any analog / digital converter (CAN). According to certain variants of the invention, the first set of information in said guide contains: E servo constraints of the video or external acquisition means, É reference information for the control, after acquisition, of the content, and validation of the first 5 and second series of information of said form for the recording of the new content É reference information for the control, after acquisition, of the content and the conditional activation of the first and second series of information of said 10 form for the recording of the new content According to other variants of implementation, É the first set of information in said guide contains: o servo constraints of the video or external acquisition means, o reference information for the control , after acquisition, of the content and validation of the first and second series of information of said form for the registration of the n new content, o reference information for the control, after acquisition, of the content and the conditional activation of the first and second series of information of said form for the registration of the new content.

  The method includes: a step of preparing the form and associated guides on a first piece of equipment, and an interpretation step on a second piece of equipment, a step where the form is recorded in a first memory area of the item of equipment of acquisition and the contents and the hypermedia product are recorded in a second memory area, o a step of recalculation of the conformity of the acquired content relating to the information of the form, with respect to the first set of information of said guide, o a step of recalculating the conformity of the acquired content relating to the information of the items, with respect to the first set of information of said guide, o a step of recalculation of the conformity of the acquired content relating to the information of the sequences, with respect to the first series information of said guide, o a step of recalculating the conformity of the acquired content relating to the information of the shots with respect to the first set of information of the form.

  E a step of exploiting the syntax and semantic analysis attributes resulting from the first series of information of said guide for the recording of the shooting, said attributes comprising a syntactic and semantic description of the type of shooting (by example: close-up / fixed, overview / tracking).

  Advantageously, said first memory area is a removable memory or a downloadable memory area.

  The invention also relates to a system for manufacturing a hypermedia product comprising at least one computer, a digital audiovisual acquisition device and an information acquisition means, characterized in that the digital audiovisual acquisition device comprises computer resources for interpreting a digital guide and manipulating a digital form from a first memory, and a mass memory for recording the acquired data.

  According to one variant, the system according to the invention comprises a removable memory adaptable on a computer for recording the form and its guides and on the digital audiovisual acquisition device (digital camera, webcam, multimedia player) for their exploitation.

  According to another variant, it comprises means for transferring a form and its guides between a first equipment and a digital audiovisual acquisition device (digital camera, webcam, multimedia player) for their exploitation.

  For a better understanding of the invention during the reading of this chapter, refer to the attached drawings relating to nonlimiting examples of implementation, where: FIG. 1 represents a schematic view of the structure of a structured document by a DTD; FIG. 2 represents the diagram of implementation of the form: FIG. 3 represents a schematic view of the general technical architecture; Figures 4 to 7 show the process of constructing the Form structure; É Figure 8 represents the collaboration diagram (input / contribution of each stakeholder); Figure 9 shows the load interpretation sequence diagram; Figure 10 shows the architecture of the work files and data flows.

  The invention makes it possible to produce hypermedia products by a succession of operations including: The creation of the forms and their associated guide (s) by connecting in ASP mode to an application creation server. forms; - Registration on removable media and loading forms and guides from the removable media to the DV camera, digital audiovisual acquisition device selected; or connect to the site directly from the camera and load forms and guides; the choice of a form and choice of a guide among those proposed with the form; filling the form under the control of the guide; - the preview of the parts (whole or part) of the form; - the control and validation of the form; unloading the completed form and associated data on the removable device or directly on the generation device of the hypermedia document; - and optionally the generation of the hypermedia document and the recording by and on the camera and the generation of a portal exploiting all or part of the data produced when appropriate.

  The method of manufacturing a hypermedia product according to the invention comprises two major parts, each leading to distinct results. The first part consists in designing an assisted audiovisual production tool, guiding and training the user in the production of small films for utilitarian purposes. The second part consists of a portal or hypermedia site, proposing the discovery of a territory presented through a cartography and audiovisual content. The site allows navigation within the video, within the cards, and in between.

  The two parties are linked insofar as the design and the realization of the utilitarian contents are carried out so as to be able to integrate all the information necessary for the exploitation in the hypermedia portal. For this, the method described mobilizes the notion of audiovisual form The structure of a document can guide both its creation and its operation. For example, a DTD (Document Type Definition, a formal grammar defining a class of documents) guides the creation process by means of an editor that proposes to fill in the various sections or sections provided for. in the DTD; we then obtain contents that are identified and qualified by the section that contains them.

  Figure 1 shows a schematic view of the structure of such a document. This is a text structured by a DTD, which prescribes that there is a chapter including a title and sections, each section having a title and paragraphs. The creation consists in following the DTD and asking the author to give a title of the chapter, then that of a section, then to provide the content of the paragraphs, and to start again if necessary. This makes it possible to know that the text The title is the title given to the chapter (and not to a section). The author is therefore assisted in the creation, and the content is qualified for a later exploitation: for example, one can make a table of contents by going to search for all the texts which are between <title of the chapter> and </ title of the chapter>. This text is indexed by the tag that was provided in the DTD.

  2871259 10 This creation principle assisted by the document structure to obtain indexed content has been applied to the audiovisual. This is the principle of the audiovisual form.

  The described method is particularly interested in utilitarian contents: the utilitarian contents are designed to convey useful information in the context of a service or a use. These contents must therefore respect a structure to be integrable in the intended service or use: the goal of the creation of content is not to innovate in the aesthetic form, breaking with the usual habits and processes, but instead of formatting information in an audiovisual standard to exploit it in a given system.

  In addition, the structure serves as a guide to follow the different stages of content creation. However, the progress of the steps may be accompanied by more or less explicit explanations, and more or less constraining tasks to assist the user. This is why the structure of the form must induce a creation guide. This guide structures the tasks to be accomplished and provides the necessary aids and explanations. These tasks are, for example: É The scripting of the content: predict which sections to integrate into the content; scripting can be strongly constrained: everything is already planned and locked in the form, or on the contrary very free: the user can modify at will the structure proposed by the form; The design of a storyboard, commonly called storyboard: predict how the content will be filmed (framing and movement of the camera); the assistance may be more or less important depending on the profile of the user.

  The implementation of the form is based on 4 key phases represented diagrammatically in Figure 2. The method described determines four key phases for the implementation of audiovisual utilitarian content: E The design: In a given application framework, it is a question of determining the type of document structure adapted to the service in question. For example, in a real estate context, the type of headings, their numbers, their level of nesting, etc., to make a film on houses, apartments, etc. Administration: The application framework being fixed, the documentary structure being determined, it is a matter of refining the chosen structure to adapt it to the different cases encountered. For example, one form is determined for apartments, another for houses, etc. In addition, the form must also structure the assistance. Different levels of help can be associated with the same form according to the competence of the user: novice, experienced, expert.

  É The Contribution: At this level, it is to exploit the structure of the form and the associated assistance, both determined by the administrator, to create audiovisual content. This content will be edited and doubled.

É Exploitation.

  Finally, the audiovisual content produced includes a series of edited, doubled and documented sequences. These resources (video sequences, sound dubbing) and information (indexes) are used for publication in the form required by the intended service or use.

  General Technical Architecture FIG. 3 represents a schematic view of the general technical architecture. Technically, the contribution tool is based on a modular architecture that makes it possible to organize the separation between its different parts and guarantees the portability, at a lower cost, of the application on more ergonomic platforms.

  The contribution tool has three distinct modules: The contributor's assistance and guidance module, which constitutes the core of the application and is based on the XML standard for data exchange.

  The capture module of the video which may be substituted by a technology other than Directshow (commercial name), currently used.

  É The contribution publication module, independent of the technologies used at the portal level in terms of audiovisual standards (Real Video (commercial name), Windows Media (commercial name), Quicktime (commercial name) ...), or management of interactivity (SMIL, MPEG4, Java Script ...).

  Each group of functions corresponds to a package or set of implementation class, which makes it possible to hide the technology used at the level of the lower technical layers from the main application.

  The module for creating and manipulating the description of the utility video scenario is based on the XML data exchange standard and uses the Xercès function library. The primitives provided by the Xercès classes are encapsulated at the level of a package which gathers all the tools necessary for the application. This toolbox is then used in the scene description creation package. Therefore, the module handling XML documents is isolated from the rest of the application and the choice of a technology other than Xercès remains possible.

  The georeferencing module provided by a geographical information system editor gathers all the primitives of navigation in the map and creation of remarkable points. The interface of this package is also identified which makes possible the change of technology.

  The module that defines the components of the Human Machine Interface (HMI) encapsulates the main graphic components used by the main application, ie it encapsulates the Java SWING and AWT graphic libraries.

  The graphic chart module exposes an access interface to the textures, icons and other images used by the main application. This module is designed to allow the administrator to simulate and replace the current chart by any graphic charts that expose the same interface.

  The video processing and display module transmits the video handling components to the main application and relays the events generated by the low level application layers. This module masks the technology used for capturing and viewing videos.

  The contribution tool is developed in Java language which guarantees the portability of its seven modules or packages on any platform. However, two modules are linked to specific software parts of the host operating system: the dynamic real-time video stream management library and an MPEG4 publishing executable provided by a specialized editor.

  A real-time video stream management component has been developed and brought into compliance with the communication interface of the video management Java package.

  Genericity The choice of XML technology as a data format guarantees the genericity and control of documents recognized by the contribution tool.

  Upstream of all uses of the contribution tool an actor, the designer sets the global structure of the form templates using XML schemas. The designer sets all default values for forms and guides. The designer also describes the default screens that will be offered to the administrator. Finally, the designer creates the coaching, consulting, and help guide that the administrator will go through when creating the form templates and setting up the guides.

  In administrator mode, the contribution tool interprets, in the XML describing the administrator guide, the screens to display and provides, at the end of its process, a template form and a template guide.

  In contributor mode, the contribution tool interprets in the same way as in administrator mode, in the XML describing the contributor guide, the screens to display and provides a completed form and its guide whose all tasks are deemed to have been acknowledged.

  There are no significant functional differences between administrator mode and contributor mode; the general operation of the application engine makes it possible to read one and the other almost indifferently.

  The administrator interface allows you to design the form templates and their guides. As a first step, the administrator defines the structure of a form template and sets the attributes of the video contribution (presence and duration of the titration, type of transition, recommendation on the type and duration of shots, etc.). ..). In a second step, the administrator configures the guide (s) that will be associated with the form by constructing the screens and adjusting the constraints of the guide (imposed order, prohibited location, etc.).

  The contributor interface makes it possible to fill the video form by customizing the elements of the form not locked by the administrator and by browsing the tunnels of action planned by the administrator: filming tunnel, editing tunnel, scripting tunnel, tunnel of filming preparation, geolocation tunnel.

  The publication module compiles in a single video file the entire contribution after interpretation of the video form completed and validated by the contributor. Publishing can be a simple editing without loss of quality, when the destination format is DV, or editing and compressing DV files of each take in any destination format.

  The product supports a publication in DV format or a publication in MPEG 4 format, in the latter case, the contribution is compressed with a loss of quality negligible if the chosen rate is sufficient.

  The DV format publication is performed by a function exposed by the C ++ bridge that provides the dialogue between the Java virtual machine and the operating system's Directshow bass layers. A Java class is responsible for graphically reporting the progress of the publication.

  For MPEG4 publishing, the Java Publishing Management class launches the executable provided by a specialized editor and captures in real time the progress of the encoding.

  The publication of the contribution must also export all the metadata associated with the contribution. An export module for this metadata in an XML file has been developed and integrated into the publication module of the contribution tool.

  Portal is defined as the service used to exploit the contributions. It introduces the territorial dimension of the product, presenting the contributions on the map of the domain according to their georeferencing. The portal integrates the following elements: - The map of the territory, - Documentaries, georeferenced, presentation of the territory.

  - The contributions, placed on the map according to their geographical coordinates.

  - Video documents made by professionals, segmented into chapters and georeferenced.

  Each segment is placed on the map according to its geographical coordinates.

  The portal is developed from the automatic retrieval of metadata associated with video documentaries or extracted from contributions. At any position in a video of the portal therefore always corresponds a position on the map, the visualization of the video and the navigation in the map are synchronized.

  The domain map implements all the classic navigation features in a map: spatial zoom, city search, map move, distance search. However the innovative feature of the portal is the zoom function in time.

  Some themes of the professional documentary are developed in video supplements. An icon inserted in the video indicates to the end customer that he has the opportunity to zoom in on the subject being evoked. A single click is enough to get the current video and start the supplement. A single click allows you to return to the main documentary in the same position as before the stall.

  The master word of the target device being genericity and portability, it was unthinkable to specify a portal that is not multi-platform and multi-use. The technical solution was to propose a coding of the portal with several bit rates, so as to allow a diffusion on Internet low speed and broadband, and a multi-platform coding to activate the navigation on microcomputer or on a television equipped with a set-top box or finally on any mobile terminal.

  Defining the concept of a scalable multimedia form fill guide The end user uses the described method to fill a multimedia form. A multimedia form 25 is an extension of the form concept (or fill in text fields) to digital media.

  Thus the user will have to complete the form with textual information, video sequences, images, sounds and so on. The guide tells him how to complete the form. Figures 4 to 7 show the construction process of the Form structure.

  The guide defines the rights left to the user to modify the Form. We can reduce this to the simple concept of mandatory fields that are often found in a form.

  The construction of the form consists of: - defining the structure of the form to be completed (scenario), - creating the nodes corresponding to the scenario, - defining the build-up of the timeline (effects, titrations), filling in the fields of the nodes of the scenario, - define the information (Name, Address, etc.) useful to the portal, - create the data collection fields required.

  The second role of the guide is to define how these fields should be filled; that is, to define the Human-Machine interface that will allow the Form to be completed. (ex: the layout, the explanatory text and the pen).

  The construction of the guide: É Define the rights for modifying the structure of the form> adding and deleting nodes (scripting action) É Creating help and presentation screens 25 actions that accompany the progress of the process> action Editing nodes Presentation and Tip É Establish a shooting guide> attributes planType and durationTo advise É Choose a graphic map É Define the functions (actions) accessible by the user - locate, mount, double, script Figure 8 represents the diagram of collaboration (contribution / contribution of each of the speakers) Figure 9 shows the interpretation sequence diagram loading The reading of the tree is made in a vertical path then horizontal.

  Three types of nodes are encountered: Screen (describes the ergonomics of a screen of the HMI), - Graphic component (Image, Video, Sound, Text, Frame, Drop-down list, etc.), - Action (indicates a type link to propose to the user to a screen or a hard HMI).

  At each node, the application builder builds the described screen (Screen node) or creates the specific recognized link (Action node); in the latter case, the interpretation stops.

  The interpretation algorithm of the guide is the following: InterpreteGuide If Node is of type InterpretGuide Screen (Passes to the child node) Otherwise If Node is of type Component screenPage :: AddComposer (component) Otherwise If Node is of type ScreenPerfect: : AddLink (action) InterpreteGuide (Passes to the sibling node) In practice, the interpretation of the Guide to loading stops only with the interpretation of the link to the contribution. This optimizes the access time to the pre-built screens of the menu bar.

  If Node is of type InterpretGuide Screen (Pass to the child node) Otherwise If Node is of type Component screenPer :: AddComponent (component) Otherwise If Node is of type ScreenPerfect :: AddLink (action) If Action is not the link to the InterpreteGuide Contribution (Pass to the child) InterpreteGuide (Pass to the brother node) Then, it is the navigation in the Guide tree that induces an on-the-fly interpretation of the corresponding node 10. There are two interpretation passes (loading and navigation).

  Figure 10 shows the architecture of the work files and data flows. 1.4

Claims (8)

  A method of manufacturing a hypermedia product consisting in enslaving at least one digital audiovisual acquisition device by a computer, characterized in that it comprises: a first step of constructing a structured form comprising: a first series of information relating to the contents to be acquired, a second series of information relating to the formatting of said contents, a third series of information relating to the aggregation, formatting and editing of the hypermedia product.   É a second step in the construction of a guide for the collection of the three sets of information from the form containing o a first set of information relating to the right to read and write on each element of the three sets of information of that form, as well as to the order, the modes of acquisition and the syntactic and semantic constraints to be applied for the collection of the three sets of information of said form, a second series of information relating to the ergonomics of the screens. These screens are used for the dialogue between the digital audiovisual acquisition device and the user, o a third series of information relating to the status of the tasks to be performed for the information of the three sets of information of said form.   É a personalization step of said form relating to the partial collection of the first set of information of said form; É a step of recording, in a content base, data acquired by the digital audiovisual acquisition device; É steps for interpreting the guide to: o generate the dialogue commands with the digital audio-visual acquisition device resulting from the first set of information in that guide, o acquire contextual information pertaining to the first and third sets of information form to which the said guide is associated, o update the third set of information in the guide by informing the status of acknowledgment of the tasks to be carried out and update the first and third sets of information of the form by recording in a database of content, the data acquired by the digital audiovisual acquisition device and by the dialog commands, with an indexation defined by the first information of said form.   A servo-control step of video or external acquisition means; É a step of previewing a temporary hypermedia product resulting from the combination of the data acquired in accordance with the second and third series of information of said form, and of validation after possible modifications; A step of generating the hypermedia product after validation of the entire temporary hypermedia product of informing the structured form with the addresses of the data acquired by the digital audiovisual acquisition device.   Manufacturing method according to the preceding claim, characterized in that it comprises complementary steps of acquisition of external data and recording in the content base, with an indexing defined by the first information of said form.   3 Manufacturing method according to claim 2, characterized in that it comprises complementary steps of acquisition of external data provided by a geolocation means.   4 Manufacturing method according to claim 2, characterized in that it comprises complementary steps of acquisition of external data provided by a time stamping means.     Manufacturing method according to claim 2, characterized in that it comprises complementary steps of acquisition of external data provided by a sound pickup means.   6 Manufacturing method according to claim 2, characterized in that it comprises complementary steps of acquisition of external data provided by a means of sound converted to text.   7 Manufacturing method according to claim 2, characterized in that it comprises complementary steps of acquisition of external data provided by a means of taking text.   Manufacturing process according to claim 2, characterized in that it comprises complementary steps.   external data acquisition provided by any analog / digital converter for data capture.   9 Manufacturing method according to claim 2, characterized in that it comprises complementary steps of acquisition of external data provided by a means for acquiring graphic information.   10 - Manufacturing method according to any one of the preceding claims, characterized in that said first set of information of said guide contains constraints of servo video or external acquisition means. -   11 - Manufacturing method according to any one of the preceding claims, characterized in that said first set of information of said guide contains reference information for the control, after acquisition, of the content and, validation of the first and second series of information of said form for recording new content.   12 - Manufacturing method according to any one of the preceding claims, characterized in that said first set of information of said guide contains reference information for the control, after acquisition, content and conditional activation of the first and second series of information of said form for recording new content.   13 - Manufacturing method according to any one of the preceding claims, characterized in that it comprises a step of recalculating the conformity of the acquired content relating to the information of the form, with respect to the first set of information of said guide.   14 - Manufacturing method according to any one of the preceding claims, characterized in that it comprises a step of recalculating the conformity of the acquired content relating to the information items, compared to the first set of information of said guide.   15 - Manufacturing method according to any one of the preceding claims, characterized in that it comprises a step of recalculating the conformity of the acquired content relating to the information of the sequences, with respect to the first set of information of said guide.   16 - Manufacturing method according to any one of the preceding claims, characterized in that it comprises a step of recalculating the conformity of the acquired content relating to the information of the shots compared to the first series of information of said form.   17- manufacturing method according to any one of the preceding claims, characterized in that it comprises a step of exploiting the syntax and semantic analysis attributes from the first set of information of said guide for recording the shooting, said attributes comprising the syntactic and semantic type of shooting (for example: close-up / fixed, overview / tracking). 18. Manufacturing process according to any one of the preceding claims, characterized in that it comprises a step where the form is recorded in a first memory area of the acquisition equipment and the contents and the hypermedia product are recorded in a second memory area.   19 - Manufacturing method according to the preceding claim, characterized in that said step of registering the form is performed in a first memory area removable memory type.   - Manufacturing method according to claim 17, characterized in that said step of registering the form is performed in a first memory zone downloadable memory zone.   21 - Manufacturing method according to any one of the preceding claims, characterized in that it comprises a step of preparing the form and associated guides on a first equipment, and an interpretation step on a second equipment 22 System for the manufacture of a hypermedia product comprising at least one computer, a digital audiovisual acquisition device and an information acquisition means, characterized in that the digital audiovisual acquisition device comprises computer resources for interpreting a digital guide and manipulating a digital form from a first memory, and a mass memory for recording the acquired data.   23 - System according to the preceding claim, characterized in that it comprises a removable memory adaptable on a computer, or a dedicated terminal for the registration of the form and its guides and on the digital audiovisual acquisition device (digital camera, webcam , multimedia player, mobile) for their exploitation.   24 - System according to claim 22, characterized in that it comprises means for transferring a form and its guides between a first equipment and a digital audiovisual acquisition device (digital camera, webcam, multimedia player) for their operation.   25 - manufacturing method according to claim 2 characterized in that it comprises complementary steps of external data acquisition provided by any means of analog data acquisition using an analog digital converter.