WO2011051736A1 - Système de demande et de distribution de contenu numérique et de reproduction audio - Google Patents

Système de demande et de distribution de contenu numérique et de reproduction audio Download PDF

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Publication number
WO2011051736A1
WO2011051736A1 PCT/GT2009/000002 GT2009000002W WO2011051736A1 WO 2011051736 A1 WO2011051736 A1 WO 2011051736A1 GT 2009000002 W GT2009000002 W GT 2009000002W WO 2011051736 A1 WO2011051736 A1 WO 2011051736A1
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WO
WIPO (PCT)
Prior art keywords
content
service
user
conversion
search
Prior art date
Application number
PCT/GT2009/000002
Other languages
English (en)
Spanish (es)
Inventor
Rubén Antonio LÓPEZ
Original Assignee
Lopez Ruben Antonio
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lopez Ruben Antonio filed Critical Lopez Ruben Antonio
Priority to PCT/GT2009/000002 priority Critical patent/WO2011051736A1/fr
Publication of WO2011051736A1 publication Critical patent/WO2011051736A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
    • H04N21/41422—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance located in transportation means, e.g. personal vehicle
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/482—End-user interface for program selection
    • H04N21/4828—End-user interface for program selection for searching program descriptors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/81—Monomedia components thereof
    • H04N21/8106—Monomedia components thereof involving special audio data, e.g. different tracks for different languages
    • H04N21/8113—Monomedia components thereof involving special audio data, e.g. different tracks for different languages comprising music, e.g. song in MP3 format
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
    • H04L65/612—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for unicast

Definitions

  • the present invention consists of an Integral System formed by different hardware and software components that facilitate the transfer of digital content from the internet to an electronic device with audio reproduction capability located in a means of transport such as a vehicle, train, Metro or other.
  • the content can be found in various sites on the internet since the system promotes that the publication of content on the internet can be made from any site and by any user.
  • the content can also be held by the user, who can upload it to a website, from which the electronic audio player can download it.
  • the content can be searched and selected online through voice commands from the electronic equipment located in the means of transport, or the content can be searched and selected in advance from a computer with internet access that is in a house, office or other independent place to the means of transport.
  • the content to be selected may be audio, video (in which case only the audio will be played) or even information in reading format (Text Formats) that will be transferred to audio by a converter system.
  • Premise 1 The human being wishes to use his time in the most productive way possible.
  • the human being wants to use his time in ways that allow him to take advantage of it in the best way, doing more activities in less time.
  • Something that helps to achieve this is the simultaneous use of the multiple senses, for example, a person can be in the cinema watching a movie and enjoying his favorite sandwich at the same time, while another speaks on the phone and drives his vehicle. Due to the above, one way to increase the efficiency or productivity of the time invested in certain tasks, is to perform them in parallel or simultaneously.
  • Premise 2 The human being wishes to feed his senses of his specific desires.
  • the human being wishes to choose as accurately as possible, with which to feed his senses for any purpose. For example, we have seen how television that provides programs for the majority (according to the publisher) has been transformed into a system for requesting content on demand, where the user can decide that they want to see a list of available programs or more yet, through the internet the user searches for digital video content according to his preference and reproduces it exclusively for use.
  • Premise 3 The human being wishes to make the least possible effort.
  • the system specified in this patent facilitates the search and selection of digital content for users who wish to audibly reproduce information that corresponds to their specific tastes or needs while maintaining their visual attention in some other task such as driving, thus making efficient the time used in carrying out activities.
  • the integral system allows the publication, search, selection, format conversion, distribution and reproduction of digital content.
  • the reproduction is done through a specific electronic device located in the vehicle or means of transport of the user.
  • the content to reproduce can have two types of origin:
  • the content must be in a standard digital format, so that it can be uploaded to a website on the Internet from a conventional computer.
  • the content located on the internet can be searched and selected in two ways: i. Advance Selection:
  • the content can be audio information in commonly used formats such as mp3, wma, wav, ogg or real media (rm).
  • Video information in commonly used formats such as mpeg, mp4, avi, mov or real media (rm).
  • read information in commonly used formats such as htlm, doc, pdf or simple text. Audio or video information is referred to in this document as audible information or content. For information that is in video format, only the sound of the video will be played and not the video.
  • Example 1 A certain person wishes to be able to listen to a book while driving to his parents' house on the weekend, so one night before he searches for the book from his computer on a shopping website. When you find it, enter certain identification credentials that will allow the electronic equipment located in your vehicle to connect to the site that has the content and automatically download the information. The day after the user approaches his vehicle or means of transport, he may reproduce the content he acquired in advance and reproduce it during the trip to his parents' house.
  • Example 2 A user who is driving in his vehicle wants to listen to a specific song or documentary at the same time, so through voice commands and search preferences entered in the electronic equipment located in his vehicle, he can locate the material, download and reproduce it.
  • Example 3 A student made a summary in an electronic document about a certain reading prior to an academic exam, and wishes to review it in the times in which he drives, so that summary can be uploaded to a specific website from which the converting said document to audio and downloading the content to the electronic audio reproduction equipment so that when the student approaches his vehicle, he can review the summary as many times as he wishes.
  • Figure 1 is a diagram of the macro components involved in the embodiment of the invention.
  • Figure 2 represents a flowchart of how the process of sending content with the user to the electronic audio reproduction equipment could be.
  • Figures 3, 4 and 5 represent a flowchart of how the process of early selection of content by the service user could be, from a computer with internet access.
  • Figure 6 represents a flowchart of how the process of downloading the content obtained in the form of early selection and synchronization of configuration by the electronic audio reproduction equipment could be.
  • Figure 7, 8 and 9 represents a flowchart of how the online content selection process could be from the electronic audio reproduction equipment through voice commands by the user.
  • Preferred embodiment of the invention :
  • the preferred embodiment of the invention is for pilots of means of transport who must maintain their visual attention to the road or the road but who wish to hear on the transport path something specific that they selected in advance from a conventional computer, or something they are looking for and select at the moment through voice commands captured by the electronic audio reproduction equipment.
  • a further application of the invention set forth herein would be the use of the service for blind users, who could access a large amount of content on the Web through voice commands or with searches from the keyboard, such that Results are delivered in audio format.
  • the electronic audio playback equipment 1 1.
  • a content identifier may contain several occurrences of the parameters indicated above by referencing each occurrence to a unique document or file, so that related information can be grouped. The following briefly describes the objective of each component that interacts in the system, which will be useful for the explanation of processes, later. It should be noted that the full list of characterizations is included in the list of claims.
  • the electronic audio reproduction equipment 1 will be responsible for downloading, storing and reproducing the content selected by the user in advance or online. For online search and selection, it will provide the user with an input interface through voice and a physical interface (buttons) for the definition of the phrase and search preferences and for the selection of the findings resulting from the search.
  • the electronic audio reproduction equipment To download the selected content in advance or that the user has uploaded to the collection site, the electronic audio reproduction equipment periodically connects to the content database pending downloading (related to its user) of the collection service to obtain the content identifiers and download the information to be reproduced. To download, it is not necessary that the electronic equipment be turned on from the user's point of view since the equipment permanently maintains an active state that is not visible to the user. To perform each download, the electronic audio playback equipment has a download manager that allows you to resume an interrupted download without having to restart it completely.
  • the electronic audio reproduction equipment will have a wireless connection to the internet that will allow you to interact with the collection service and to download content from acquisition sites.
  • the collector service to be used and the network information to access it (IP, port, protocol).
  • the search service to use and the network information to access it (IP, port, protocol).
  • the conversion service to be used for text-audio conversion and network information to access it (IP, port, protocol).
  • the conversion service to be used for audio-text conversion and network information to access it IP, port, protocol. It should be taken into account that this service may be provided by the same electronic audio reproduction equipment or the conversion service indicated in d.
  • i For content selected in advance but not yet downloaded: i. The way to notify about the newly downloaded content or if it will be played automatically.
  • the default category for search (The categories could be: Music, Wikipedia TM, book, documentary or other).
  • iii The default type of content to search (Audio, text or both).
  • the server service) Collector 2 will act as a request collector by doing the following:
  • the acquisition service (or server) 3 will store audible or reading content, which will be published on sites accessible from the internet (called acquisition sites) so that the users of the service can select it, the search engines can locate it and so that the Electronic audio playback equipment can download (purchase) and play it.
  • acquisition sites sites accessible from the internet
  • the search engines can locate it and so that the Electronic audio playback equipment can download (purchase) and play it.
  • the collection service or the conversion service is the one who has the information that the electronic audio reproduction equipment will download, they also function as acquisition sites. It is expected that an electronic audio playback team can download content from various acquisition sites on the internet.
  • the content published on the acquisition sites may be audible or read information.
  • the information can be grouped and presented to the user as a structured list with the content identifiers that it includes.
  • the information that is in reading format will be presented to the user in audio form through an audio converter, which is detailed in point five of this sequence.
  • Acquisition sites can provide users who access it with content lists organized by category, author, titles, etc. Also, for certain content can provide the user with a description or a preliminary of it, as well as comments from users who have downloaded such information.
  • Distributed content can be free or sold in the usual electronic way of sale.
  • the acquisition service can allow the user to select content in three ways: a. Automatic advance selection from a computer with internet access, in which case the acquisition service will exchange through the network and under a specific protocol, the content identifiers with the collection service that the user defines.
  • the conversion service (or server) 4 will basically allow the following:
  • the information already converted can be returned directly to the applicant or placed in an accessible internet site so that the electronic audio reproduction equipment can connect, download the content and reproduce it.
  • the Conversion will use "speech to text” and "text to speech” technology.
  • the content search service :
  • the content search service (or server) 5 will place content on the internet in audible or reading format, according to the phrase and search preferences it receives, for which it must constantly index information related to the content published on different sites on the internet .
  • Content search can be done in two ways:
  • the collection service Through requests forwarded by the collection service, which were made online from the electronic audio reproduction equipment.
  • the information that the search service returns must have a specific format, which allows the collection service to obtain the content identifiers that will then be used by the electronic audio reproduction equipment to perform the download.
  • the content search service may perform searches taking into account the search phrase and preferences that the user has indicated, among which could be the type of content to be searched (Audible, reading or both); or the category of content to search (music, wikipedia TM, book, documentary, a combination of these or others).
  • the computer with internet access 6 will be used by the user of the service when he wishes to search for content and select it in advance or when the user wishes to upload content that He has.
  • the anticipated selection is expected to be the most used by the users of the service, since it will be much easier to perform searches from a conventional computer, than through voice commands or a physical interface in the electronic audio reproduction equipment.
  • the user can access the following services through the Web:
  • the communication service 7 will be used for the interaction between the different components set forth above.
  • communication mainly the internet and its routing, addressing and interaction mechanisms (Web Sites, web services, socket applications, etc.) are used.
  • each component will use to interconnect to the internet is not relevant, except for the medium that will use the electronic audio reproduction equipment, since it must use a wireless medium such as the 3G network or a satellite service.
  • each component the electronic audio reproduction equipment, the collection service, the conversion service and the search service
  • the use of sessions and identifiers of requirement or request is required, which will allow both requests and responses to flow in the right direction.
  • a user connects to a certain service
  • the service provides a website for the user to connect to it. If this service is the collection service, the user must identify himself through access credentials.
  • a component exchanges information with another component
  • the component that receives information has a client application in the form of a web-service or socket application that is waiting to receive commands (For example when the electronic equipment of Audio playback is connected to the collector service).
  • both the component that sends information and the one that receives know the communication protocol for exchanging information.
  • the user interacts with the electronic audio reproduction equipment, it should be understood that this user is operating said equipment in the vehicle or means of transport where it is located, through voice commands or a physical interface (buttons).
  • each service is provided by a different and independent component
  • integration of services in the same component can also be carried out which would reduce the response times to the equipment Electronic audio playback. For example, if the collector service and the converter were united in a single component called “collector-converter” would reduce the interaction time between these services.
  • the components involved in this process are: The electronic audio reproduction equipment 1, The collection service 2, The conversion service 4, the computer with internet access 6 and the communication service 7.
  • the content must be in a digital format, standard, so that it can be uploaded as a file to a website on the internet from a conventional computer.
  • the process begins when the user connects to a website of the collection service, registers through credentials and uploads the information that he wishes to reproduce later on the electronic audio reproduction equipment 500. The identification must be done with the same credentials registered in Electronic audio playback equipment. If the uploaded information is in 502 reading format, the collection service should alert the user that they should share the information with the 508 conversion service. If the user accepts 510, the collection service will send a request to the conversion service that includes the type of request, the priority of the request and the content or, the identifiers of content (If they were the content identifiers, the collection service had to anticipate placing the information in a private site accessible from the internet).
  • the conversion service will return a request identifier to the collector service, to subsequently perform the conversion, while The collection service can return the address to the acquisition service to receive the conversion notification completed (Since the session may not remain active) 514. Having the content already in audio format, the conversion service will transfer the identifier to the collection service application and content identifiers 516, which will update the content database pending downloading that consults the electronic audio reproduction equipment. To ensure that the document is only accessible to the user that requires it, both the request identifier and the content identifiers will function as credentials 506. If the content was found in audio, the collection service should only store the information on one site. Accessible from the Internet 504 and update the database of content pending download for the user requires, with the content identifiers (which also that in the previous case will serve as credentials) 506.
  • the electronic audio reproduction equipment that is in the vehicle or means of transport is constantly connected to the collection service (previously identified through access credentials) 400, consulting the content database pending download to determine if there is any update and if so, it obtains from said database the content identifiers to download 406. With this information, it is connected to the acquisition site to download through a download manager which allows a failure of communication resume a download without losing the information already downloaded 408. Finally update the download status as completed 410. Upon completion of the download of the content, the electronic audio playback equipment will notify through a visual or audible alert (depending on of the configuration in the equipment) to the user who operates it that exists Do selected in advance ready to play.
  • the notification will be made as soon as the user turns on the equipment.
  • the electronic audio reproduction equipment can reproduce the title of the content and allow the user who operates it to decide whether to reproduce the content at that time 414.
  • the downloaded content is stored in a default playlist or in the list that the user has indicated in the configuration of the electronic reproduction equipment of Audio.
  • the components involved in this process are: The electronic audio reproduction equipment 1, the collection service 2, the acquisition service 3, the conversion service 4, the content search service 5, The computer with internet access 6 and the communication service 7.
  • the acquisition site must open a session with the collection service indicated by the user (through sockets, web services or other Web service), in which it will send the content identifiers which the collection service will use to open a window (independent or incorporated into the current window) where you will request the credentials of the ordering user and show the user the list or titles of the requested content.
  • the content to be published may not be free, in which case the user will be required to try to download the information that complies with the procedure usually used on the internet to purchase content. In that case, the information contained within the content identifiers must be taken as confidential as it will act as the access code for the download.
  • This modality allows the user to use a conventional computer with internet access 6 that is located in his home, office or any other place, from which he enters websites to search or acquire content that he later wishes to reproduce on the electronic playback equipment.
  • Audio 1 The following details how the search, selection, format conversion, distribution and reproduction process is carried out.
  • the process begins when the user enters a conventional Web search site through a computer with internet access 104, from which he searches for the desired content and can indicate through parameters his preferences of search (As type or category of content) or that only those sites that support automatic advance selection 106 are filtered. Likewise, the search can be performed through a specific search site that indexes only the information of those sites that allow early selection or either from the same acquisition site, which would perform an internal search. When obtaining the search engine results, the user can access the acquisition site that he decides 108.
  • the selection is made by entering acquisition sites located on the Internet 102 from which the content of interest to the user 110-120 is selected.
  • the acquisition sites may allow you to preview the content or read comments from other users 112.
  • check out 122 When the user already has the selected and paid content (in the case it is not free content), check out 122 and if the acquisition site allows automatic selection, it must provide the user with a list of collection services for him to choose the one that provides the service or the acquisition site must provide a field for the user to enter the address of his service collector 124. With this information the acquisition site must initiate a session with the collection service indicated by the user, in which it will initially send the content identifiers ordered by the user 126.
  • the collection service in order to avoid sending unwanted content (spam) starts a secure web session of the collection service where the user's credentials will be requested to validate that it really is a valid order and the list of content to be acquired will be displayed 128. If it is a valid order, the collection service will store the content identifiers and the user who acquires 130. It will also store in the content database pending download that the electronic audio reproduction equipment consults the content identifiers that are in audible format 134.
  • the collection service will send to the conversion service a request that includes the type of request, the priority of the request and the content identifiers. In the type of request, it will indicate that it is a text-to-audio conversion and in priority it will indicate that it is a non-online conversion 138.
  • the conversion service will return a request identifier to the collection service, to subsequently carry out the conversion, while The collection service may return the address to the acquisition service to receive the conversion notification completed 140.
  • the collection service will store in the database of content pending downloading that the electronic equipment will consult Audio playback content identifiers already converted to audio 144.
  • the site from which the content is to be acquired does not allow automatic selection but only manual selection, the site must provide the user from its website with the content identifiers or the web address where the content identifiers are located 146 , so that it copies said information to the website of the collection service 148. Already with said information the collection service proceeds in the same way as in the previous case from step No. 130.
  • the electronic audio reproduction equipment is constantly connected to the collection service (previously identified through access credentials) 400, to determine if there is content pending downloading and if so, it obtains from the same collection service the content identifiers to download 406. With this information, you connect to the acquisition site to download through a download manager which allows a communication failure to resume a download without losing the information already downloaded 408. Finally, update the status of download as completed 410.
  • the electronic audio reproduction equipment Upon completion of the download of the content, the electronic audio reproduction equipment will notify the user who operates it by means of a visual or audible alert (depending on the configuration on the equipment) that there is selected content in advance ready to play. If the electronic audio reproduction equipment is not turned on at the time of downloading, the notification will be made as soon as the user turns on the equipment.
  • the electronic audio reproduction equipment can reproduce the title of the content and allow the user who operates it to decide whether to reproduce the content at that time 414.
  • the content selected in advance is stored in a default playlist or in the list that the user has indicated in the configuration of the team.
  • the components involved in this process are: The electronic audio reproduction equipment 1, the collection service 2, the acquisition service 3, the conversion service 4, the content search service 5 and the communication service 7.
  • search engines can index the content identifiers to offer them to users who make online requests from the electronic audio reproduction equipment. It should be taken into account that for the online selection of content only free content can be accessed.
  • This mode allows the user to use the electronic audio reproduction equipment that is located in their vehicle or means of transport, to search, select and play via voice commands and physical interface (buttons) digital content of their choice. It should be taken into account that in this process the computer with internet access is not used, so all references made to the "user” refer to the one that operates or interacts with the electronic audio reproduction equipment located in a vehicle or means of transport.
  • the user starts by indicating via a physical interface (buttons) on the electronic audio reproduction equipment that he wishes to perform a search via voice commands 200. He then indicates through a physical interface (buttons), his search preferences among which he can be the category of content to search (Music, Wikipedia TM, book, documentary or others) and the type of content (Audible, reading or both) 200-202. Finally, it indicates via voice command the search phrase that will be the value to be searched for 204.
  • the search phrase can be transferred to text by the electronic audio reproduction equipment or by the conversion service, depending on the value found in configuration 206.
  • the electronic audio reproduction equipment is identified (sends the registered credentials) to the collection service and sends the search phrase in audio format and the search preferences as parameters in data format 210.
  • the collection service will then send a conversion request to the conversion service including the type of request, the priority of the request and the audio file (or streaming) corresponding to the search phrase.
  • request type it will indicate that it is an audio to text conversion and in priority it will indicate that it is an online conversion 212.
  • the conversion service will transform the information received and return the respective text file to the collection service 214. In this case it is not necessary to use a request identifier since the conversion is expected to take a short time and the response is returned through the open session that will keep the collection service with the conversion service.
  • Yes the conversion will be done by the electronic reproduction equipment ae adtlio, it will send the search phrase in text format together with the search preferences to the collection service, after identification through access credentials so steps No. 210-214.
  • the collection service when it already has the search phrase in text format, it sends you to the search service specified in configuration, the search phrase and the preference values 216 and you will obtain from it a list of findings with the duly segmented information .
  • the search service Within the information returned by the search service are each numbered finding and the content identifiers for each finding 218-220.
  • the collection service will send to the conversion service a request for conversion of text to audio and with online conversion priority, which will include the list of findings received by the search service organized in a segmented file according to customer preferences, to obtain from the conversion service one or more audio files that will be used for audible presentation to the user of options, titles and descriptions of the content, corresponding to the list of findings 224-228.
  • Said audio information accompanied by the content identifiers is sent to the electronic audio reproduction team who reproduces it and allows the user to choose the option of their choice through the entry of options via a physical interface or voice 230-232.
  • the electronic audio reproduction equipment will send the content identifiers to be converted to the collection service 238 and the collection service will send the conversion service, the type of request, request priority and content identifiers.
  • type of request it will indicate that it is a text to audio conversion and, in priority, it will indicate that it is an online conversion 240.
  • the conversion service will initiate the conversion and will deliver the audio information directly to the 242 collection service who in turn will transfer it to the electronic audio reproduction equipment so that it stores and reproduces it 244-246, or the conversion service will provide the collection service of the content identifiers that are already in audio so that are transferred to the electronic audio reproduction equipment and it can be connected to the acquisition site to download 244-248. It is at the discretion of the conversion service to store or not the document that has been converted. One way to decide whether the content is stored or not, could be the number of times the conversion of said content has been requested. If the option entered by user 234 refers to an document in audible format, the electronic audio reproduction equipment is connected directly to the acquisition site to download (steps 238-246 must be omitted). The acquisition site address is obtained by the electronic audio reproduction equipment as part of the content identifiers that the collection service sent to you as a result of each finding reported by the search service 254. When the download is complete or takes an advance that allows reproduction without interruption, playback 256 begins.
  • the collection service sends the electronic audio reproduction equipment (Through the same session with which it requested the information) the content identifiers that are in audio 250. With this information the electronic audio reproduction equipment starts downloading the content referenced by the first first finding and upon completion of the download starts playback in conjunction with the download of the referenced content by the following finding, or you can reproduce the findings sequentially partially, until the user decides to leave an ongoing reproduction 252.
  • the electronic audio reproduction equipment is constantly connected to the collection service (previously identified through access credentials) 400, to determine if there is configuration pending synchronization and if so 400-406, it obtains from the same collection service the configuration parameters that have been modified to update its internal configuration 418. Details of the configuration parameters can be found in the description of the electronic audio reproduction equipment component.

Abstract

L'invention concerne un système comprenant un équipement électronique de reproduction audio, un service de collecte de demandes, un service d'acquisition de contenu, un service de conversion de format et un service de recherche, tous interconnectés via Internet. L'utilisateur recherche et sélectionne un contenu numérique publié sur Internet et le système fournit automatiquement ledit contenu à un équipement de reproduction audio situé dans un véhicule, par l'intermédiaire de moyens sans fil. Le contenu est stocké et l'utilisateur peut le reproduire par sélection. Le contenu peut se présenter sous différents formats et, si nécessaire, une conversion de format texte à format audio peut être réalisée.
PCT/GT2009/000002 2009-10-26 2009-10-26 Système de demande et de distribution de contenu numérique et de reproduction audio WO2011051736A1 (fr)

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PCT/GT2009/000002 WO2011051736A1 (fr) 2009-10-26 2009-10-26 Système de demande et de distribution de contenu numérique et de reproduction audio

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PCT/GT2009/000002 WO2011051736A1 (fr) 2009-10-26 2009-10-26 Système de demande et de distribution de contenu numérique et de reproduction audio

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