WO2012113460A1 - Procédé et système de combinaison de plus d'une donnée de contenu à un média unique en résultant et mise à disposition du média unique en résultant pour service de répertoire de contenus (upnp) ou un serveur de média numériques (dlna) - Google Patents

Procédé et système de combinaison de plus d'une donnée de contenu à un média unique en résultant et mise à disposition du média unique en résultant pour service de répertoire de contenus (upnp) ou un serveur de média numériques (dlna) Download PDF

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Publication number
WO2012113460A1
WO2012113460A1 PCT/EP2011/052856 EP2011052856W WO2012113460A1 WO 2012113460 A1 WO2012113460 A1 WO 2012113460A1 EP 2011052856 W EP2011052856 W EP 2011052856W WO 2012113460 A1 WO2012113460 A1 WO 2012113460A1
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WO
WIPO (PCT)
Prior art keywords
dlna
media
content
upnp
single resulting
Prior art date
Application number
PCT/EP2011/052856
Other languages
English (en)
Inventor
Raffaele ANDREACE
Giovanni CONZ
Original Assignee
Ennova Research S.R.L.
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 Ennova Research S.R.L. filed Critical Ennova Research S.R.L.
Priority to PCT/EP2011/052856 priority Critical patent/WO2012113460A1/fr
Publication of WO2012113460A1 publication Critical patent/WO2012113460A1/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]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/23424—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving splicing one content stream with another content stream, e.g. for inserting or substituting an advertisement
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/40—Information retrieval; Database structures therefor; File system structures therefor of multimedia data, e.g. slideshows comprising image and additional audio data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2803—Home automation networks
    • H04L12/2838—Distribution of signals within a home automation network, e.g. involving splitting/multiplexing signals to/from different paths
    • 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
    • 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
    • H04L65/70—Media network packetisation
    • 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
    • H04L65/75—Media network packet handling
    • H04L65/765—Media network packet handling intermediate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/56—Provisioning of proxy services
    • H04L67/565—Conversion or adaptation of application format or content
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/56—Provisioning of proxy services
    • H04L67/567—Integrating service provisioning from a plurality of service providers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/2362—Generation or processing of Service Information [SI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H04N21/2665—Gathering content from different sources, e.g. Internet and satellite
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/27—Server based end-user applications
    • H04N21/278—Content descriptor database or directory service for end-user access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4345—Extraction or processing of SI, e.g. extracting service information from an MPEG stream
    • 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
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/43615—Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals
    • 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
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/44016—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving splicing one content stream with another content stream, e.g. for substituting a video clip
    • 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
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4622—Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet
    • 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
    • H04N21/85—Assembly of content; Generation of multimedia applications
    • H04N21/854—Content authoring
    • H04N21/85406—Content authoring involving a specific file format, e.g. MP4 format
    • 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
    • H04N21/85—Assembly of content; Generation of multimedia applications
    • H04N21/858—Linking data to content, e.g. by linking an URL to a video object, by creating a hotspot
    • H04N21/8586—Linking data to content, e.g. by linking an URL to a video object, by creating a hotspot by using a URL

Definitions

  • the present invention relates to structured contents in a DLNA network managing them as a single media or media flow, and more particularly, to a method and system of building and / or converting heterogeneus content data to a media or media flow shared through a UPnP CDS or DLNA DMS.
  • BACKGROUND TO THE INVENTION Universal Plug and Play is a set of networking standard protocols published as a 73-part International Standard, ISO/IEC 29341, in December, 2008. It is based on common standards, including TCP/IP, HTTP, XML and SOAP and a lot of software and devices on the market currently support it.
  • Digital Living Network Alliance DLNA
  • DLNA Digital Living Network Alliance
  • DLNA defined some standards to let consumer devices share contents, and they are main ly based on the UPnP protocol .
  • the DLNA standa rd defines three main roles for each device being certified or compliant :
  • a Server device can deliver content to a
  • Renderers in a network browse the content stored in a Server and push the request to display it to a Renderer.
  • DLNA certified devices In the market there are a lot of DLNA certified devices as wel l . Most of them are actua lly Servers (NAS or PCs) and Renderers (TVs and screens), wh ile there are not so many Controllers available .
  • Control lers are mainly a software matter, many certified controllers are expected to be available, mainly for mobile devices running Android a nd iOS operating systems.
  • the High Definition media a nd the related technology play a major role in Internet-ena bled devices, UPnP/DLNA enabled TVs as well as in consu mer-market devices.
  • UPnP/DLNA Internet-ena bled devices
  • the UPnP/DLNA role breakdown per device normally follows the trend as depicted by the following table :
  • This table shows the relative shortage of UPnP/DLNA Controller applications or modules which are not available for many categories as listed above. This rather diffuse condition is burdening the spreading of the UPnP/DLNA technology in a way that can be effectively used.
  • the most common usage pattern concerns a TV as UPnP/DLNA Renderer, a NAS as UPnP/DLNA/SERVER and a third device, e.g. an iPhone, as DLNA Controller, if not integrated into the NAS Device.
  • controller functionality even if controller functionality is present, it follows the normal pattern of controlling the play-out of a single content at a time by connecting a single server to a single renderer at a time.
  • the UPnP/DLNA standards design does not cover some specific areas that are key points for Digital Signage solutions; for example, it does not manage contents display in an organic way, but only as atomic single content display. That means that the contents are displayed one after the other. The content does not contain any instructions of how the transition between the sequentially displayed content files should look like.
  • Digital Signage is method and system where information, advertising and other messages is displayed on one or more displays. Digital signs, such as LCD, LED, plasma displays, can be found in public and private environments, such as retail stores and corporate buildings. Advertising using digital signage is a method in which content and messages are displayed on digital signs with a common goal of delivering targeted messages to specific locations at specific times.
  • Digital signage relies on a variety of hardware to deliver the content.
  • the components of a typical digital signage installation include one or more display screens, one or more media players, and a content management server. Sometimes two or more of these components are present in a single device but typically there is a display screen, a media player, and a content management server that is connected to the media player over a network.
  • Displays used for Digital Signage are most usually controlled by basic Personal Computers by way of proprietary software programs, avoiding any large capital outlays for the controller equipment.
  • Digital Signage has the advantage that not only static pictures are displayed. Using Digital Signage changing signs or movies can be displayed. The displayed content can be exchanged more easily, animations can be shown, and the signs can adapt to the context and audience, even inter- actively.
  • the content to be displayed on the displays can be pictures, movies or text or a combination of these. Due to the use of personal computers which control the displays, the content can be displayed in various ways.
  • a basic feature of Digital Signage is to have playlists and structured contents, as well as the management of multiple devices, a time-table for controlling contents on display, whether they are TVs, audio devices, tablets, printers, etc., as targets. Because the media player is normally running on a personal computer it is possible to choose the transition between contents which are displayed after another from a broad variety of transition forms. Possible transitions are for instance an effect interposed between the playout of two media contents, like : blinds, crawl out, dissolve out, fading out, fly out, strips and many more. The scope of the transitioning effect is to give the watcher the idea of a visual continuity between diverse contents.
  • URP Content Directory Service
  • DLNA Digital Media Server
  • the idea of the invention is to compose, pack and/or convert diverse content data to a single resulting media, which can be for instance a media file or data stream which is either conform to DLNA or can be made available through a Content Directory Service (UPnP) or a Digital Media Server (DLNA).
  • UPnP Content Directory Service
  • DLNA Digital Media Server
  • the process of combining all of the to be displayed contents data together into one single data file or data stream makes it is possible to determine the transitions between the sequentially displayed contents.
  • the single resulting media in form of a data file or data stream than contains the transitions. Therefore the single resulting media can be transmitted via UPnP or DNLA to DLNA conform displays, printers, etc.
  • the method and system can be used as a Digital Signage method and system, which does not need computers to control the dis- plays. Therefore the invention provides a Digital Signage System which is more easily to install because on display site no computers and/or special software implemented media players are needed. The system is therefore much simpler and cost-saving than conventional Digital Signage systems or networks.
  • the displays used to display the single resulting media only need to have a DLNA compliant Digital Media Renderer, which is nowadays commonly available on standard TVs.
  • the invention advantageously overcomes the main design collision between the UPnP/DLNA protocols and a Digital Signage systems which consists in the fact that the UPnP/DLNA renderer is something that does not handle any specific logic, taking care only of the media format (codec, container, etc.), while the Digital Signage target is a screen or something that can play a content (e.g., audio) connected to a logical unit, which is usually a standard PC, that downloads and handles the content to be shown on the player.
  • a content e.g., audio
  • a logical unit which is usually a standard PC, that downloads and handles the content to be shown on the player.
  • the single resulting media can be transcoded and/or converted in a DLNA compliant media format.
  • the diverse content data can be retrieved from any and/or different storage devices which can be accessed by the claimed method or system.
  • the information needed to combine the different content data files to a single resulting media can be received or retrieved from an instruction file, for instance in the form of a screenplay.
  • the file might be a structured file, a custom XML or a standard SMIL file.
  • the system can comprise a DLNA controller which sends the single resulting media to standard or mobile DNLA Players, Displays, Printers and/or Renderers.
  • This controller can be capable of transmitting the single re- suiting media to one or more DNLA Displays, players, printers and/or Renderers simultaneously and/or at pre-determined times for each target device.
  • the DLNA controller can also be programmable in a way that it might transmit the single resulting media only once, timed or in an endless loop.
  • the claimed system and method can be capable of updating or changing the content of the single resulting media. This can be triggered by for instance constantly searching for new or amended input content or performed in timely intervals. The method than creates a new single resulting media which replaces the old single resulting media.
  • Fig. 1 Shows a block diagram representing an exemplary embodiment of an UPnP/DLNA compliant system for rendering content on UPnP/DLNA capable digital players or renderers for Digital Signage solutions
  • Fig. la Shows a block diagram representing an exemplary embodiment of an UPnP/DLNA compliant system with a distributor and UPnP/DLNA Controller;
  • Fig. 2 shows an audio/video clips or other suitable media insertion within an MPEG-2 TS for rendering content on UPnP/DLNA capable digital players or Tenderers;
  • Fig. 3 shows an audio/video clips or other suitable media for real time insertion within an MPEG-2 TS for rendering content on UPnP/DLNA capable digital players or Tenderers;
  • FIG. 1 is a block diagram representing an exemplary embodiment of the present invention.
  • the logical module 101 is the Smart Content Connector (SCC) that is in charge of retrieving or receives different contents 106 eventually located internally or externally.
  • SCC Smart Content Connector
  • each source content 106 is represented by a specific URI 107.
  • the URIs 107 can be included in a SMIL file 105, as shown in this example, or even parameters, instruction set or structured file 104.
  • the SCC 101 will parse the input 105, gather all the resources, combine and/or transform them as described by the instructions in the input file 105 and transcode them to a format compliant with the DLNA Media Format definition.
  • the packager 102 will combine the media contents 106 together, eventually based on specific data/screenplay of the input file 105 about the target 109 and/or playlist of elements 110.
  • the built single resulting media can be stored locally on a File System 108.
  • the resulting media built is added to a Content Directory Service (CDS) and/or Digital Media Server (DMS) 103, so that a specific or generic Digital Media Controller 202, shown in Fig. la, can start the stream of the media build with this method to a Digital Media Player, Renderer and/or Printer.
  • CDS Content Directory Service
  • DMS Digital Media Server
  • Fig. 2 is a block diagram representing an exemplary embodiment of the present invention using the option to stream the built media eventually inserting new contents 107 in a specific already built media 111 at a specific time, even if the media streaming and playout to a DMP, DMR or DMP already started 113.
  • PID Program ID
  • a special set of streams known as Signaling Tables, are transmitted with a description of each program carried within the MPEG-2 Transport Stream.
  • PSI Program Specific Information
  • a PSI section may a lso be used for downloading data to a remote site. Meaningfu l tables are also PAT - Program Association Table and PMT - Progra m Ma p Table, a mong others - see the M PEG-2 standard for further information . PES de-multiplexing needs PAT information ( PID) a nd even- tually the set of PIDs carried as a separate PSI section and corresponding to another logical chun k of information (the Program Map Table ( PMT)) . PSI information is sent just ahead of insertion points.
  • Fig . 3 is a block diagram representing an exempla ry embodiment of the present invention using the option to have the SCC 101 to periodically check if the source contents are to be updated 115 after the generic M PEG-2 TS was created 114 or put for playout.
  • the new media built up wi ll be replaced in the media stream 116 eventually being played on a specific DM R or DM P 117.
  • a filler A/V media clip can be overlapped if needed by a new media clip of the sa me type, format, length, duration .
  • SCC and Packager modules take care of this.
  • the above-described methods according to the present invention can be realized in ha rdware or as software or computer code that can be stored in a recording medium such as a CD ROM, DVD, BD, SD, SDHC, a RAM, a floppy disk, a hard disk, or a magneto-optical disk or downloaded over a network, so that the methods described herein can be rendered in such software using a general purpose computer, or a special processor or in program mable or dedicated hardware.
  • the computer, the processor or the program mable hardware include memory components, e.g., RAM, ROM, Flash, etc.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Databases & Information Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Marketing (AREA)
  • Data Mining & Analysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Automation & Control Theory (AREA)
  • Astronomy & Astrophysics (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

L'invention concerne un procédé de fourniture de différents contenus sources (106)à un environnement prêt à l'emploi universel (Universal Plug and Play/ UPnP) et ou à un réseau DLNA, qui consiste : à recevoir ou à extraire deux données différentes de contenu (106) provenant d'une ou de plusieurs sources internes ou externes de contenus ; à composer, à conditionner et/ou à convertir conjointement les contenus différents pour obtenir un média résultant unique (109) ; à rendre ce média unique résultant disponible via un service de répertoire de contenu UPnP ou un serveur de média numériques DLNA (103).
PCT/EP2011/052856 2011-02-25 2011-02-25 Procédé et système de combinaison de plus d'une donnée de contenu à un média unique en résultant et mise à disposition du média unique en résultant pour service de répertoire de contenus (upnp) ou un serveur de média numériques (dlna) WO2012113460A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2011/052856 WO2012113460A1 (fr) 2011-02-25 2011-02-25 Procédé et système de combinaison de plus d'une donnée de contenu à un média unique en résultant et mise à disposition du média unique en résultant pour service de répertoire de contenus (upnp) ou un serveur de média numériques (dlna)

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Application Number Priority Date Filing Date Title
PCT/EP2011/052856 WO2012113460A1 (fr) 2011-02-25 2011-02-25 Procédé et système de combinaison de plus d'une donnée de contenu à un média unique en résultant et mise à disposition du média unique en résultant pour service de répertoire de contenus (upnp) ou un serveur de média numériques (dlna)

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Cited By (5)

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US20120271901A1 (en) * 2011-04-21 2012-10-25 Samsung Electronics Co., Ltd. Method and apparatus for connecting devices
EP3062482A1 (fr) * 2015-02-26 2016-08-31 Deutsche Telekom AG Procédé, dispositif et système de collecte sans fil de données à haute vitesse
CN107071551A (zh) * 2017-04-26 2017-08-18 四川长虹电器股份有限公司 应用于智能电视系统中的多屏互动屏幕响应方法
CN115499695A (zh) * 2022-08-16 2022-12-20 珠海全志科技股份有限公司 一种智能电视控制方法、装置、广告机和介质
CN115665084A (zh) * 2022-12-27 2023-01-31 武汉长光科技有限公司 一种投屏方法及装置

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