WO2005003993A1 - Systeme de fourniture de service gratuit de video a la demande utilisant un decodeur numerique et procede associe - Google Patents

Systeme de fourniture de service gratuit de video a la demande utilisant un decodeur numerique et procede associe Download PDF

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Publication number
WO2005003993A1
WO2005003993A1 PCT/KR2003/001475 KR0301475W WO2005003993A1 WO 2005003993 A1 WO2005003993 A1 WO 2005003993A1 KR 0301475 W KR0301475 W KR 0301475W WO 2005003993 A1 WO2005003993 A1 WO 2005003993A1
Authority
WO
WIPO (PCT)
Prior art keywords
video
top box
service
digital set
banner advertisement
Prior art date
Application number
PCT/KR2003/001475
Other languages
English (en)
Inventor
Sang-Duck Kim
Original Assignee
Huwell Broadband Service Inc
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 Huwell Broadband Service Inc filed Critical Huwell Broadband Service Inc
Priority to AU2003248147A priority Critical patent/AU2003248147A1/en
Publication of WO2005003993A1 publication Critical patent/WO2005003993A1/fr

Links

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
    • H04N21/25—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
    • H04N21/254—Management at additional data server, e.g. shopping server, rights management server
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications
    • H04N7/17318—Direct or substantially direct transmission and handling of requests
    • 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
    • H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content 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]
    • H04N21/20—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
    • H04N21/254—Management at additional data server, e.g. shopping server, rights management server
    • H04N21/2542—Management at additional data server, e.g. shopping server, rights management server for selling goods, e.g. TV shopping
    • 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
    • H04N21/254—Management at additional data server, e.g. shopping server, rights management server
    • H04N21/2543—Billing, e.g. for subscription services
    • 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
    • H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
    • H04N21/25866—Management of end-user data
    • H04N21/25891—Management of end-user data being end-user preferences
    • 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
    • H04N21/418—External card to be used in combination with the client device, e.g. for conditional access
    • H04N21/4185—External card to be used in combination with the client device, e.g. for conditional access for payment
    • 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
    • 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
    • H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
    • H04N21/4316—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
    • 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
    • H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
    • H04N21/47202—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting content on demand, e.g. video on demand
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6125—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via 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
    • H04N21/81—Monomedia components thereof
    • H04N21/812—Monomedia components thereof involving advertisement data

Definitions

  • the present invention relate to a system supplying a video on demand service by using a digital set-top box, and more particularly, to
  • VOD video on demand
  • VOD video on demand
  • a server side is provided with a public communication network protocol serving as an address on a communication network and a client side accesses to the server side via the public communication network protocol.
  • a user ID and a password is given to the client side, that is, a user, and the user accesses to the web site providing movie contents and then is served with the movie contents provided from the
  • the viewer has to pay a predetermined service charge.
  • a predetermined service charge there were problems that it is troublesome to undergo a procedure of being given a user ID and a password from a video on demand service provider in order to receive a video on demand service.
  • the viewer has to pay a predetermined service charge.
  • the present invention has been developed for the purpose of solving the foregoing problems and thus it is an object of the present invention to provide a system supplying a video on demand service free
  • the present invention relates to a system supplying a video on demand service free of charge by using a digital set-top box and a
  • a system supplying a video on demand service free of charge by using a digital set- top box comprises: a digital set- top box of a user which is supplied with
  • a service providing apparatus which supplies corresponding free video on demand service contents and the related banner advertisement data according to a request of the video on demand service transmitted from the digital set- top box; a voice synthesizer which is connected to the service providing apparatus and provides voice synthesis data according to a selected service; a shopping cart
  • a local store apparatus which receives in audio data the purchase information about the banner advertisement object ordered by the viewer via the digital set-top box and the service providing apparatus and the voice synthesizer;
  • a method of supplying a video on demand service free of charge by using a digital set-top box comprises
  • FIG. 1 is a block diagram of a system supplying a video on demand service free of charge by using a digital set- top box in
  • Fig. 2 is an internal block diagram of the digital set- top box as shown in Fig. 1;
  • Fig. 3 is a flow chart for explaining a method of supplying a video
  • Fig. 4 is a reference chart for explaining a banner table data
  • Fig. 5 is an exemplary view of the configuration of a video on demand service screen and a banner advertisement screen provided in the method of supplying a video on demand service free of charge by using a digital set-top box in accordance with the one embodiment of the present invention
  • Fig. 6 is an exemplary view of the screen shown when selecting the banner advertisement provided in the method of supplying a video on demand service free of charge by using a digital set-top box in accordance with the present invention.
  • Fig. 1 is a block diagram of a system supplying a video on
  • the system supplying a video on demand service free of charge by using a digital set-top box comprises: a digital set- top box 100 of a user which is supplied with user-selected service contents using a telephone
  • a service providing apparatus 200 which supplies corresponding free video on demand service
  • a voice synthesizer 250 which is connected to the service providing apparatus 200 and provides speech synthesis data according to a selected service; a shopping mall server 300 which
  • a local store apparatus 400 which receives in audio data the purchase information about the banner advertisement object ordered by the viewer via the digital set-top box 100 and the
  • an electronic payment system 500 which executes payment for a
  • the service providing apparatus 200 of this embodiment includes:
  • a first storage section which stores contents related to various services
  • a streaming server which transmits the service contents stored in the first storage section via the communication network and enters the
  • SAN Storage Area
  • a web/ database server which delivers the service contents provided from a content providing apparatus to the streaming server via the communication network
  • a second storage section which stores additional information (e.g., the location of each service content, serial number, access information, charging information and other
  • a manager PC which executes search, insertion, deletion, updating and reconstruction for the additional information stored in the second storage section by entering a DML command to the web/ database server.
  • the first storage section means a large scale capacity and can be
  • the service providing apparatus 200 stores movies or value-added data in the first storage section.
  • the contents to be stored in the service providing apparatus 200 ranges from 10MB to several GB, thus the
  • the SAN switching section carries out the transfer of service contents between the first storage section and the streaming server by a fiber channel.
  • the streaming server supplies service contents by using the method of reproducing audios, videos, animation and the like in real time on the communication network.
  • the service providing apparatus 200 of this invention for example, if the contents providing apparatus (not shown) supplies the contents of the movie "Spirited Away" to the service providing apparatus, the service providing apparatus 200 stores the contents of
  • the web/ database server stores them in the first storage section via the SAN switching section.
  • SCSI Small Computer System Interface; input and output bus interface of small computer.
  • the manager PC searches, inserts, deletes, updates and
  • the service providing apparatus 200 provides various contents information related to polls, application for event, coupon download and so on as well as the free video on demand service, purchase and delivery advertisement.
  • the service providing apparatus 200 is an apparatus that is managed by a service provider providing a free video on demand service.
  • the local store apparatus 400 is a dedicated receiving apparatus that receives purchase information about the banner
  • FIG. 2 is an internal block diagram of the digital set- top box in the system supplying a video on demand service free of charge by using a digital set-top box in accordance with one embodiment of the present
  • the digital set-top box 100 in the system supplying a video on demand service free of charge by using a digital set-top box in accordance with one embodiment of the present invention
  • ADC analog/ digital conversion
  • audio /video input sources e.g., television tuner, movie camera, VTR, cable broadcasting, satellite broadcasting, CCD camera, microphone and the like
  • audio /video switching section 18 which outputs via a storage signal output port audio/video signals of one channel selected from the audio/video signals of a plurality of channels provided from the plurality of analog/ digital conversion sections 10, 12, 14 and 16 and outputs the audio /video signals of the plurality of channels and the audio /video signals input by MPEG encoding via an audio/video signal output port;
  • an MPEG encoder 20 which receives the audio/video signals output via
  • a storage section 22 of a hard disc drive (HDD) type which stores the audio/video signals MPEG-encoded by the HDD
  • MPEG encoder and stores MPEG contents input via a VDSL line or LAN line; an auxiliary control section 24 which makes the storage section 22
  • a main control section 26 which provides a control command required for storing data into the storage section 22 and outputting the same and controls the corresponding operation based on a remote signal sent from a remote control (not
  • a screen generating section 30 which generates a main screen with the video signals of one channel of the video signals of the plurality of channels and generates an auxiliary screen with the video signals of the other channels; an OSD synthesis section 32 which implements a
  • the audio/ video conversion section 18, the auxiliary control section 24 and the OSD synthesis section 32 are field programmable gate arrays which are a kind of programmable logic chips.
  • the main control section 26 and the auxiliary control section 24 execute communication between them via a local bus 46.
  • personal information e.g., name, address, credit card information, ID card information and so on
  • personal information e.g., name, address, credit card information, ID card information and so on
  • audio/video output means which outputs audios and videos of the plurality of channels output from the audio /video switching section 18 according to a user- selected condition under the
  • the MPEG encoder 20 has inside a buffer (not shown) of first in first out (FIFO) type.
  • the auxiliary control section 24 directly
  • the main control section 26 processes only a control command.
  • the main control section 26 processes only a control command and address index for the storage section 22 and the auxiliary control section 24 is in charge of the
  • the VDSL line is a telephone line
  • the LAN line is a communication network line composed of two communication network lines.
  • network interface cards NIC; Network Interface Card
  • NIC Network Interface Card
  • These network interface cards 48, 50 and 52 allow the digital set-top box and the network to be connected all the time.
  • the network interface cards connected with the two communication network lines are used as home gateway equipment, with a network address translation (NAT) function allocated. That is, in case the user is not in the VDSL environment, the user may access to the communication
  • NAT network address translation
  • the ROM 42 has inside VOIP (Voice Over Internet Protocol) software for enabling the digital set-top box to execute a VOIP function.
  • VOIP Voice Over Internet Protocol
  • SLIC Subscriber Line Interface Circuit
  • the SLIC 54 outputs an analog audio signal input in the form of a
  • the digital audio signal output from the output terminal of the SLIC 54 is input into the audio/video switching section and is also input into the main control section 26 via the local bus.
  • the main control section 26 stores the VOIP software stored in
  • the digital set-top box also serves as a VOIP phone. That is, the digital set-top box of this invention has inside the VOIP function for transmitting audio and video using an IP.
  • An audio/video signal input from four audio/video input sources is an audio/video signal input from four audio/video input sources
  • a signal input via the analog/ digital conversion section is composed of an RCA input and a super video (S-video). Only the audio/video signal of one of the four input sources is stored in the storage section via the MPEG encoder 20 and the auxiliary control
  • the digital set-top box of this invention can be used in either
  • VDSL telephone environment or LAN environment as selected which is capable of a very high speed communication of maximum 25M per second, in two-way, 12M per second.
  • the contents information is updated via a server (not shown) and
  • the data input via the network is stored in the storage section 22, which is a hard disc drive (HDD) for time buffering and then are read out from the storage section 22 and
  • HDD hard disc drive
  • the digital set- top box thus configured of this invention, various contents can be provided and output as desired via the VDSL line or LAN line, as well as the digital set-top box has the PVR function. Further, the digital set- top box 100 has inside a user's credit card terminal function, thus it manages the credit card to eliminate the risk of leakage to the outside.
  • Fig. 3 is a flow chart for explaining a method of supplying a video
  • the method of supplying a video on demand service free of charge by using a digital set-top box comprises the steps of: turning on the power of a digital set-top box 100 (SI 00); displaying the
  • set-top box further comprises the steps of: taking the statistics on the
  • the step of displaying a video on demand screen and the corresponding banner advertisement screen on the television 150 further comprises the steps of: a viewer's selecting a banner advertisement by predetermined selecting means (S610); taking the statistics on the selected banner advertisement and storing the same
  • the predetermined selecting means is at least one of a keyboard, a mouse, a trackball and a remote controller. Also in the step of taking the statistics on the selected banner advertisement and storing the same, it is preferable that the stored statistic data is transmitted to the banner advertiser, he or she is demanded to pay the corresponding advertisement charge and the advertiser pays the demanded advertisement charge for the banner advertisement.
  • the other is as follows. In case of making a transaction with a general local store with no transaction server, when the purchase of the
  • Fig. 4 is a reference chart for explaining a banner table data structure used in the method of supplying a video on demand service free of charge by using a digital set-top box in accordance with the one embodiment of the present invention. As shown in Fig. 4, the banner
  • table data structure contains at least banner advertisement play time
  • the data of the banner table is
  • the displaying of the screen of the banner advertisement on the television according to the video on demand screen is achieved in such a manner that the banner advertisement data is displayed on the television screen
  • the banner advertisement data is displayed on the television screen according to the play time
  • Fig. 5 is an exemplary view of the configuration of a video on
  • the video on demand (a) and banner advertisement (b) screens provided in this method are displayed on parts of the television screen playing the video on demand (a)
  • the banner advertisement (b) is played on the video on demand at the time when the screen of the video on demand (a) related to the advertisement object, i.e., the advertisement target, is displayed.
  • the banner advertisement related to Hardee's is played.
  • Fig. 6 is an exemplary view of the screen shown when selecting the banner advertisement provided in the method of supplying a video on demand service free of charge by using a digital set-top box in accordance with the present invention. As shown in Fig.
  • the screen shown when selecting the banner advertisement provided in this method is a screen containing a more detailed explanation of the banner advertisement object, a screen configured to purchase the banner advertisement object, or a combination of the screen containing a more detailed explanation and the screen configured to purchase the banner advertisement object.
  • the screen (c) of the video on demand is displayed on
  • the predetermined selecting means for selecting the banner advertisement is at least one of a keyboard, a mouse, a trackball and a remote controller.
  • the banner advertisement related to Hardee's is at least one of a keyboard, a mouse, a trackball and a remote controller.
  • the system and method can overcome the conventional problems that it is troublesome to undergo a procedure of being given a user ID and a password from a video on demand service provider to receive a video on demand service and the viewer has to pay a predetermined service charge.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Business, Economics & Management (AREA)
  • Marketing (AREA)
  • Computer Graphics (AREA)
  • Human Computer Interaction (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)

Abstract

La présente invention a trait à un système de fourniture de service gratuit de vidéo à la demande utilisant un décodeur numérique et un procédé associé, dans lequel un utilisateur est assuré d'un service de vidéo à la demande pour un film souhaité gratuitement en utilisant un décodeur. Le système comporte : un décodeur numérique d'un utilisateur qui est alimenté en contenu de service par sélection d'utilisateur au moyen d'une ligne d'abonné téléphonique numérique à très haut débit et affiche ledit contenu via un téléviseur en temps réel et qui possède une fonction de terminal de carte de crédit ; un appareil de fourniture de service qui fournit un contenu de service de vidéo à la demande gratuit et les données de messages publicitaires associés selon une requête de service de vidéo à la demande transmise depuis le décodeur numérique ; un synthétiseur vocal qui est relié à l'appareil de fourniture de service et fournit des données de synthèse vocales selon un service sélectionné ; un serveur de galerie marchande qui reçoit une information d'achat concernant un objet de message publicitaire commandé par le téléspectateur via le décodeur numérique et l'appareil de fourniture de service ; un appareil de mémoire locale qui reçoit sous forme de données audio l'information d'achat concernant l'objet de message publicitaire commandé par le téléspectateur via le décodeur numérique et l'appareil de fourniture de service et le synthétiseur vocal ; un système de paiement électronique pour une transaction réalisée au niveau du serveur de galerie marchande et l'appareil de mémoire locale ; et un réseau de communication qui établit une interconnexion entre le décodeur numérique, l'appareil de fourniture de service, l'appareil de mémoire locale et le système de paiement électronique. Selon la présente invention, le système et le procédé peuvent résoudre les problèmes classiques qui impliquent une procédure fastidieuse comprenant l'octroi d'une identification d'utilisateur et d'un mot de passe en provenance d'un prestataire de service de vidéo à la demande pour la réception d'un service de vidéo à la demande et le paiement par le téléspectateur de frais de service prédéterminé.
PCT/KR2003/001475 2003-07-02 2003-07-23 Systeme de fourniture de service gratuit de video a la demande utilisant un decodeur numerique et procede associe WO2005003993A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003248147A AU2003248147A1 (en) 2003-07-02 2003-07-23 A system supplying video on demand service free of charge by using a digital set-top box and a method thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020030044696A KR100405988B1 (en) 2003-07-02 2003-07-02 System and method for providing free vod movie service using digital set-top box
KR10-2003-0044696 2003-07-02

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Publication Number Publication Date
WO2005003993A1 true WO2005003993A1 (fr) 2005-01-13

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KR (1) KR100405988B1 (fr)
AU (1) AU2003248147A1 (fr)
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WO2012109064A1 (fr) * 2011-02-10 2012-08-16 Syniverse Technologies, Llc. Procédés, appareils et produits programmes d'ordinateur pour faciliter un accès sans frais à des données
US8693358B2 (en) 2010-12-16 2014-04-08 Syniverse Technologies, Inc. Providing toll free data in a wireless system
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WO2011120051A2 (fr) * 2010-03-26 2011-09-29 4D Retail Technology Corporation Systèmes et procédés pour construire et utiliser une table d'affichage interactive dans le but de faciliter les enregistrements
WO2011127577A1 (fr) 2010-04-13 2011-10-20 Dean Stark Système de rayonnage de vidéos interactif
US9733699B2 (en) 2010-04-13 2017-08-15 Dean Stark Virtual anamorphic product display with viewer height detection
US9367869B2 (en) 2012-02-13 2016-06-14 Dean Stark System and method for virtual display
CN104394474B (zh) * 2014-11-25 2017-09-15 苏州航天系统工程有限公司 流媒体快速定位点播方法

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