KR20090039041A - System and method for iptv vodcasting service using really simple syndication - Google Patents

Abstract

A system and a method for an IPTV vodcasting service using RSS(Really Simple Syndication) are provided to transmit video files collected from a content sever through an RSS reader and reproduce a title list and the video file in an IPTV terminal which is joined to a vodcasting channel through an IPTV head end. A controller(91) controls each module for a vodcasting service, and a member data manager(92) manages membership information for the IPTV vodcasting service. A content collector(93) uses RSS or FTP to collect frequently-updated video files. A category classifier(94) classifies the collected contents in category, and a title list generator(95) edits the classified contents to generate a title list linked to a video file. A billing processor(96) processes the charge of each member for the IPTV vodcasting service. Databases(97,98,99) stores the title list and the video file in category to provide the IPTV vodcasting service. A data agent(90a) updates the contents of the vodcasting service at time interval and transmits the tile list for the vodcasting service to a data manager of the data broadcasting system.

Description

System and method for IPTV vodcasting service using Really Simple Syndication}

The present invention relates to an IPTV boardcasting service system and method using RSS (Really Simple Syndication), and in particular, various video contents, such as news, sports, travel information, UCC, etc., which are updated in real time using RSS technology, through an RSS reader. Collect, classify and store by category with VODcasting service server and generate title list, and download and play title list and video file with different UDP port number to IPTV terminal joined to VODcasting channel through IPTV headend system. The present invention relates to an IPTV board casting service system and method using RSS.

In recent years, Web 2.0 technology has been developed in accordance with the intelligent paradigm of the semantic web and the web-oriented paradigm of user-oriented participation. Client technology as a dynamic open space that is decentralized into a web as platform environment based on Mashup, OpenAPI), distribution (Reputation, Long Tail, Personalization, Recommendation), and relies on a user-oriented community. It provides content technology and server technology.

Web 2.0 is a term coined during the web conference brainstorming between O'relly and MediaLive, starting with a case study of future Internet technologies.

The technologies using Web2.0 include RSS, Tag, Blog, WIKI, Ajax, Open API (OAPI), Mashup, long tail, Social Networking, and the main functions of Web2.0 are described in Table 1.

function role Applied Technology Share, participate Create a web environment initiative through collaboration and intellectual creation activities among users Tagging, RSS Opening Anyone can easily create and use content information Open API, WIKI, Mash Up convenience User convenience and high I / F Ajax Platform provider Support for open computing and API development on the web Open API

RSS is short for Rich Site Summary or Really Simple Syndication. It is a web content syndication that summarizes the contents of various websites and exchanges and exchanges data from different sites. As a content syndication technology, it is an XML based web-content distribution protocol. It is used for syndication in many portal sites, news sites, and blogs at home and abroad.

RSS is mainly used for frequently updated news sites and weblogs, and is currently used for podcasting and boardcasting or videocasting.

When using RSS, the user computer is installed with an RSS standard document viewer or an RSS reader program. RSS Reader requests information from the RSS server through TCP / IP or HTTP protocol, and searches and registers the keyword with the content keyword that the user wants to find. The RSS server responds to the server response according to the client request. In response, it searches and parses RSS contents that match keywords, and sends RSS feeds (site addresses that support RSS in XML files) to RSS readers in real time.

In addition, when the RSS server receives a search request with a content keyword and an RSS request with the keyword from the RSS reader of the user terminal, the RSS server searches the content server and transmits the retrieved RSS content to the RSS reader.

The application examples of the existing Web 1.0 and the current Web 2.0 are compared in Table 2 below.

  Web 1.0  Web 2.0 DoubleClick: Large advertiser-focused internet advertising Google AdSense: Engage your users with an ad model that spans hundreds of thousands of advertisers Ofoto: Operator-Oriented Online Image Upload / Print Service Flickr: user-centric online image sharing service Akamai: Central File Sharing Service (Head Centric) BitTorrent: P2P distributed file sharing service (Long Tail) mp3.com: Central music service Napster: Distributed Music Sharing Service Britannica: An Encyclopedia of Closed Minority Experts Wikipedia: Encyclopedias that allow multiple users to create, edit and collaborate on their own Personal Websites: Personal homepages that are inconvenient to produce and manage Blogging: Single media that is easy to create / manage and supports RSS Directories (Taxonomy): Information provided by businesses by categorizing the information Tagging (Folksonomy): A service where users sort and share information evite: event publishing center service Upcomming.org: Event sharing and syndication services between users

Vodcasting is a new word created in 2005 and is called various terms and uses RSS (Really Simple Syndication) technology. The benefits of using RSS technology are described in the following examples.

When a user surfs the web and accidentally finds a website such as a blog, mini homepage, or cafe that suits his or her taste, the user bookmarks it so that it can be easily found next time.

When the user uses the Internet, the number of web sites bookmarked increases as time passes, whereas the time of Internet use is limited, making it difficult for the user to visit all the bookmarked web sites. Furthermore, if a user visits a website and there is no newly updated content, or if there is too much content in a few days, it may take time to find what they want. I hate it.

However, instead of bookmarking the web site, the user subscribes to the RSS server using the RSS reader of the terminal. Then, newly registered contents on the website can be easily checked without visiting the website directly through an aggregator RSS reader (a program installed on the client PC).

However, the existing IPTV service collects and classifies the content that is frequently updated by the boardcasting service server by using RSS to collect and classify the content such as video file, and receives the channel title list and the video file to download and play it through the IPTV headend system. It did not provide IPTV boardcasting service.

The present invention has been proposed to solve the problems of the prior art, using a RSS technology of the content server to update the RSS reader (RSS Reader) for various contents such as news, sports, travel information, UCC, etc. Collect video files, classify them into categories by VODcasting service server, store them, generate title list and transmit them to IPTV headend system, and IPTV headend system to IPTV terminal joined with VODcasting channel. An object of the present invention is to provide an IPTV boardcasting service system and method using RSS for downloading and playing a video file.

In order to achieve the object of the present invention, the present invention is an IPTV boardcasting service system using Really Simple Syndication (RSS), which requests video content from various content servers, collects video file contents, and categorizes them into categories. A boardcasting service server for generating a title list for the service and providing a video file linked with the title list; And an IPTV headend system for transmitting EPG information including a title list, a video file, and a boardcasting channel provided from the boardcasting service server to the IPTV terminal in a multicast manner through an IP network.

The board casting service server, the control unit for controlling each module for the board casting service; A member information manager to manage member information for an IPTV boardcasting service; A content collector for collecting content including the video file using an RSS protocol; A category classification unit for classifying the collected content by category; A title list generating unit for generating a list of titles linked with video files by editing contents classified by categories; A database for storing title lists and video files for each category for the IPTV boardcasting service; And a data transmitter for updating the title list and the video file at regular time intervals and transmitting the same to the IPTV headend system.

The boardcasting service server further includes a member information manager that manages member information for the IPTV boardcasting service.

The boardcasting service server further includes a billing processing unit for processing billing for the IPTV boardcasting service for each member.

The boardcasting service server is used in connection with a DRM server for applying DRM encryption to a video file for the IPTV boardcasting service.

The IPTV terminal may include a TV in which an IP set-top box is embedded, an IP set-top box connected to a user's TV, a computer, a notebook, or a personal portable terminal.

The title list and the video file are transmitted by different UDP port numbers from the IPTV headend system.

The title list may include boardcasting content information including a program name of the video file, a size and number information of the video file.

The IPTV headend system includes an EPG providing system for providing an electronic program guide including a boardcasting channel; A data broadcasting system having a data manager (DM) for receiving a title list including text and images which are periodically updated from the board casting service server, and generating data for data broadcasting related to board casting; A PSI generator for generating PSI information on a boardcasting channel; a baseband system for frame-synchronizing a video file received from the boardcasting service server and distributing broadcast signals for each channel to output broadcast video and audio signals; A compression multiplexing system for multiplexing the A / V signal including the video file, the data for broadcasting data, and PSI information for the boardcasting channel, and outputting the multiplexed stream by IP packetizing; A network switch system for transmitting an IP packetized transport stream and a title list including the video file received from the compression multiplexing system in a multicast manner with different UDP port numbers; And a return path server system connected to an IPTV terminal and a return channel through the IP network, recording log information of the user, and receiving bidirectional data from the IPTV terminal in a unicast manner.

IPTV board casting service system using RSS

Receiving an authentication request message for using an IPTV boardcasting service from the IPTV terminal, transmitting an authentication ticket to the IPTV terminal in response to the authentication request message, and broadcasting the subscriber information on the issued authentication ticket. The apparatus further includes a personalization authentication server for transmitting to the service server.

The compression multiplexing system streams an A / V signal including a video file received from the boardcasting service server, data for data broadcasting, and PSI information about the boardcasting channel by using an MPEG2 TS method. .

The IPTV headend system further includes a subscriber management system for subscription and termination for the IPTV service and member information management.

The IPTV boardcasting service system using RSS further includes a billing processing system for processing billing for use of an IPTV service for each member.

The L3 network equipment used for the IP network uses a Protocol Independent Multicast-Sparse Mode (PIM-SM) multicast routing protocol, and the IPTV terminal uses an IGMP Join / Leave message to select / release a broadcast channel. L2 network equipment of the subscriber network connecting the IP network and the IPTV terminal is characterized by using the IGMP Snooping protocol to recognize the IGMP transmission and reception messages of the IPTV terminal requesting the channel.

In order to achieve another object of the present invention, the present invention provides an IPTV boardcasting service method using RSS, comprising: (a) a boardcasting service server requesting content using a RSS protocol from a content server; (b) collecting, by the boardcasting service server, a video file from a content server, categorizing the video file into categories, and generating a title list linked with the video file; (c) a data broadcasting system receiving the title list from a data agent DA of the board casting service server to a data manager DM; (d) the data broadcasting system generating data for data broadcasting related to board casting and generating PSI information by a PSI generator; (e) the EPG providing system providing an EPG including boardcasting to a plurality of IPTV terminals; (f) a baseband system synchronizing a frame of a video file received from the boardcasting service server and distributing broadcast signals for each channel to provide broadcast video and audio signals; (g) IP-packing the multiplexed stream after the multiplexing system multiplexes the A / V signal including the video file, the data broadcasting data and the PSI information for the boardcasting channel; (h) a network switch system transmitting the IP packetized transport stream including the title list and the video file in a multicast manner to different IP ports by different UDP port numbers; And (i) the personalization authentication server receiving the authentication request message for the IPTV boardcasting service from the IPTV terminal, confirming whether the IPTV boardcasting service is subscribed, and transmitting a corresponding authentication ticket to the IPTV terminal, for the issued ticket. Transmitting subscriber information to the boardcasting service server.

In the IPTV boardcasting service method using RSS, (j) the IPTV terminal joins a multicast group of a boardcasting channel, receives a title list and a video file having a different UDP port number, and stores the video file and the title list. It further comprises the step.

The IPTV boardcasting service method using RSS further includes (k) the boardcasting server managing membership registration and termination and membership information for the IPTV boardcasting service.

The IPTV boardcasting service method using RSS further includes (l) processing charging for using the IPTV boardcasting service for each member.

The title list may include boardcasting content information including a program name of the video file, a size and number information of the video file.

In order to achieve another object of the present invention, the present invention provides a method for receiving an IPTV boardcasting content by an IPTV terminal, comprising: (a) receiving an EPG information including a boardcasting service channel from an IPTV headend system; (b) selecting the boardcasting IPTV channel number from the EPG or the main screen, and then transmitting an authentication request message including the SAID to the personalization authentication server for use of the IPTV boardcasting service; (c) receiving an authentication ticket from the personalization authentication server to the IPTV terminal; (d) transmitting an IGMP Join message to the boardcasting IPTV channel number and downloading and storing title lists and video files having different UDP port numbers in real time; And (e) outputting a title list to the channel title screen of the IPTV terminal, and if a title displayed on the channel title screen is selected, outputting a pre-stored video file associated with the selected title to the TV screen.

The title list may include boardcasting content information including a program name of the video file, a size and number information of the video file.

The method for receiving IPTV boardcasting content may include: (f1) determining whether the download is completed based on the boardcasting content information; And (f2) if it is determined that the download is completed, transmitting the IGMP Leave message.

In the step (f1), if it is determined that the download is not completed, it is characterized in that the state is joined to the board casting channel.

The step (e) is characterized in that the IPTV terminal displays the title list one by one on the channel title screen based on the received title list or sequentially outputs it as voice in TTS (Text To Speech).

In the step (e), when the channel title is displayed on the screen when the boardcasting channel is selected, the advertisement title is provided before and after the program on a specific part of the screen.

The IPTV boardcasting content receiving method further includes (g) transmitting, by the IPTV terminal, subscription information for an IPTV boardcasting service to a boardcasting service server.

In order to achieve another object of the present invention, the present invention provides a computer or an IPTV terminal, comprising: (a) an IPTV terminal receiving an EPG information including a boardcasting service channel from an IPTV headend system; (b) selecting a boardcasting IPTV channel number from the EPG or the main screen, and then transmitting an authentication request message including the SAID to the personalization authentication server for use of the IPTV boardcasting service; (c) receiving an authentication ticket from the personalization authentication server to the IPTV terminal; (d) transmitting an IGMP Join message to the boardcasting IPTV channel number and downloading and storing title lists and video files having different UDP port numbers in real time; And (e) a computer that records a program for outputting a title list on the channel title screen of the IPTV terminal, and when a title displayed on the channel title screen is selected, outputting a pre-stored video file associated with the selected title; or Provided is a recording medium readable by an IPTV terminal.

An IPTV boardcasting service system and method using RSS (Really Simple Syndication) according to the present invention is an RSS reader for various contents such as news, sports, travel information, UCC, etc., which are updated in real time from a content server using RSS technology. Video files are collected and classified into categories by the VODcasting service server, stored, and the title list is generated and transmitted to the IPTV headend system, and the UDP port number is different from the IPTV terminal joined to the VODcasting channel through the IPTV headend system. The title list and video files are downloaded and played.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a conceptual diagram of a boardcasting service using RSS (Really Simple Syndication).

Boardcasting is an extension of RSS technology based on audio (mp3). Podcasting (podcasting = i-Pod + broadcasting) has emerged when applied to the iPod (i-Pod), which was Apple's mp3 player. Podcasting has simply shifted the medium from text to audio, but its reach and market potential are expanding its reach into radio broadcasting and education. The big difference with podcasting from traditional RSS is that audio files are downloaded to your PC for ease of use.

Vodcasting is a media transition from audio (mp3) to video and uses various terms such as videocasting.

Since video is not delivered in real time streaming, it eventually becomes the well-known VOD (Video On Demand) form. However, unlike the existing VOD service, when accessing the VOD web server to display the list and sending the selected file from the VOD server, boardcasting downloads a new video file instead of the audio file like podcasting. There is a difference in providing viewing convenience by receiving and playing back.

The boardcasting service server according to the present invention transmits a title list and a video file to the IPTV headend system 100a by categorizing them by category when uploading video content on a web site collected from a plurality of content servers using RSS technology. do.

The IPTV headend system 100a transmits a title list and a video file with different UDP port numbers to the IPTV terminal joined to the boardcasting channel.

The boardcasting service server 90 automatically downloads new content using the RSS protocol between the platform and the news feeder. Of course, new content can use protocols already promised to each other (e.g., FTP) even without RSS. However, it is advisable to use standardized protocols in order to have a framework for accepting User Created Contents (UCC) in the future.

The boardcasting service server platform edits the content title for each subject based on the information obtained. For example, boardcasting content need not be limited to news, such as general news, economic news, or sports news. When the VOD content is economic news, it uses one broadcast channel. That is, when the viewer views YTN news or the like, the IPTV terminal may associate with the news after the headline news is first displayed.

The boardcasting service provider (SP) can edit titles to be provided in the economic news channel so that they can be viewed on a TV screen, and various editing options can be provided. First, the boardcasting service provider SP may edit the title first with the latest news, and the title may have some additional information to increase the selectivity. Each title is indexed so that video files corresponding to the title are linked to each other. In addition, a tag associated with the video file is inserted so that the video file can be used for future retrieval. Of course, you can use the XML tags that you use when registering on the website. In addition, the video file may be used by transcoding or applying encryption through a DRM server.

In addition, the TV connected to the set-top box STB may additionally provide an advertisement function at a predetermined position on the screen in addition to the video file playback function downloaded to the viewer.

2 is a block diagram of an IPTV boardcasting service system linked to a boardcasting service server.

The board casting service server 90 includes a controller 91, a member information manager 92, a content collector 93, a category classifier 94, a title list generator 95, a billing processor 96, and a database. (97,98,99), and a data transmission unit (90a).

The boardcasting service server 90 collects video file contents by requesting contents by using RSS technology to various content servers such as news, weather, sports, and travel, and categorizes them into categories for titles for a boardcasting service. A list is generated and a video file linked with the title list is sent to the IPTV headend system 100a.

The board casting server 90 includes a control unit 91 for controlling each module for the board casting service; A member information manager 92 for managing member information for an IPTV boardcasting service; A content collector 93 for collecting content including a video file that is frequently updated using an RSS or FTP protocol or the like; A category classification unit 94 for classifying the collected content by category; A title list generation unit 95 for generating a list of titles linked to video files by editing contents classified by categories; A billing processing unit 96 for processing billing for the IPTV board casting service for each member; A database (97, 98, 99) consisting of a news DB, a sports DB, and a travel DB, which store a list of titles and video files by categories such as news, sports, and travel for IPTV boardcasting service; And a data transfer unit (DA) 90a for updating the content of the boardcasting service at regular time intervals and transmitting a list of titles for the boardcasting service to the data manager DM of the data broadcasting system (DBS) 192. ).

The boardcasting server 90 may be used in connection with a DRM server for applying digital rights by performing DRM encryption on a video file for an IPTV boardcasting service.

The IPTV headend system 100a receives the video file transmitted from the boardcasting service server 90 and sends the boardcasting service server 90 to a data manager (DM) of the data broadcasting system (DBS) 172. A list of titles that is periodically updated is received from a data transfer unit (DA) 90a of the PC.

The IPTV headend system 100a uses different IP port numbers for the IP packetized streams and title lists, including A / V signals containing video files, data for data broadcasting, and PSI information for boardcasting channels. And EPG information including SI information and boardcasting channel as a separate channel through multicasting method through IP network (premium network) and subscriber network (eg Ethernet, xDSL, HFC, FTTC, FTTH). Send to the IPTV terminal joined.

That is, the IPTV headend system transmits the title list and the corresponding video file to the IPTV terminal in a multicast manner by using different UDP port numbers through a boardcasting channel which is a multicast group address.

IP multicast technology for IPTV boardcasting services generally only considers live streaming live, which is used for real-time file transfer.

Multicast includes an IP multicast method using a multicast function of the Internet and an End-System multicast method using a user terminal. The present invention uses IP multicast.

The boardcasting service provider (SP) assigns the economic news to the channel number and assigns the IP multicast address. IP multicast can be received only when there is an IGMP Join request for the channel at the user terminal. That is, the video file cannot be downloaded while watching another program channel on the IPTV terminal.

In order to solve this problem, in the case of the IPTV board casting service of the present invention, when a user applies for a desired channel in an electronic program guide (EPG) or a main screen, an IGMP Join request is made for the channel.

If the paid channel is specially designed, the authentication request message including the set-top box ID (SAID) is transmitted to the personalization authentication server, and after the user authentication, the set-top box IP information (subscriber classification) and the multicast IP information (channel classification) for charging ) Is sent to the billing server of the service platform.

The viewer always downloads information about the channel into the set-top box, separate from the channel being watched on the IPTV terminal.

Since the file size of a channel title is not large, there is a method of delivering a unicast from the service platform until the channel is selected, or a title list can be downloaded together when downloading a video file. In the latter case, channel selection in IP multicast is made at layer 3 (L3: IP layer), so if the UDP port number of layer 4 (L4) above is different, channel title is provided separately from file download. Can be.

This feature has the advantage that several video files can be downloaded at the same time.

When a viewer views a general broadcast channel on an IPTV terminal and selects a Vodcasting IPTV channel number, the IPTV terminal displays a channel title screen as if it were a headline list of news. The channel title screen can be displayed in various ways. It is assumed that the channel title page is loaded from the IP set-top box assuming that it has been downloaded earlier. For a more vivid and comfortable view, the IPTV terminal may display the channel titles one by one in order or in conjunction with TTS (Text To Speech) to output voices to read the titles sequentially. When the viewer selects the title displayed on the channel title screen with the remote controller, the corresponding video file (or general web page file) is loaded from the IP set-top box and output to the TV screen.

3 is a block diagram of an IPTV headend system.

The IPTV service system includes a list of titles from the boardcasting program provider (PP) or the boardcasting service server 90, A / V signals for video files, data for broadcasting data, and PSI information, and SI information, boardcasting channels. IPTV headend system for transmitting EPG information, IP backbone network using unicast or multicast routing protocol to IP network, subscriber network (e.g. Ethernet, xDSL, HFC, FTTC, FTTH), IPTV terminal .

The subscriber network can be composed of any of the following topologies: Ethernet, IP network, xDSL (ADSL, VDSL), Hybrid Fiber Coax (HFC), Fiber To The Curb (FTTC), and Fiber To The Home (FTTH) architecture. have.

The IPTV terminal may use any one of a TV with an IP set-top box (IP STB) or an IP set-top box, a computer, a laptop, or a personal portable terminal connected to a user's TV.

The IP set-top box 310 is a hardware layer consisting of a STB hardware such as a CPU, a media processor, a flash RAM, an Ethernet module, a system software layer including a device driver and an operating system, a Java virtual machine (JVM), Java Network Interface (JNI), ACAP API (ACAP-J, ACAP-X API) (Java TV, Havi UI, JMF, DAVIC, CA Interface), Conditional Access System (CAS) module or Digital Rights Management ( Middleware layer with DRM: Digital Rights Management (DRM) interface module, APIs for IP media services (Navigator, Audio streaming API, VOD, Flash player, HDS Client, SSO Client), streaming protocol (RTP, RTSP), MPEG2, MPEG4 It supports various multi-codecs such as MPEG7, H.264, WMV-9, and other codecs and includes an application layer including an electronic program guide (EPG) client, a web browser or a client.

The subscriber's IP set-top box 310 is connected to a digital TV, connected to an ADSL modem or a VDSL modem, or connected to a fast Ethernet switch (FES), and connected to a home gateway.

The subscriber IP set-top box 310 is assigned an IPv4 address or an IPv6 address.

The IPTV headend system 100a includes a baseband system 100, a compression multiplexing system 110, a reception restriction system 120, a billing processing system 130, a subscriber management system 140, a monitoring system 150, A media management system (MOC) 160, a network switch system 170, an EPG providing system 171, a data broadcasting system 172, and a return path server system 173.

The IPTV headend system 100a is a subscriber switch (L3 switch) 220, a subscriber via a Gigabit or higher speed router and an L3 switch using a multicast routing protocol (e.g., PIM-SM protocol) of the premium network 200. IP set-top joined to a boardcasting channel via a concentrator (xDSL concentrator or DSLAM) 230 with multicasting PSI information for different title lists and video files, data broadcast data, and boardcasting channels with different UDP ports Send to box 310.

The baseband system 100 receives an MPEG-2 broadcast signal from a boardcasting program provider (PP) or a terrestrial wave, or an analog broadcast signal from a terrestrial wave, and converts the received source broadcast signal into a SDI (Serial Digital Interface) signal. Converts and synchronizes frames, distributes broadcast video and audio signals from around 100 different broadcast channels via a routine switcher, and enables subtitle generators (CGs) and automatic program controllers (APCs). At least one of an advertisement, a logo, or a subtitle is inserted into the broadcast video and audio signal (signal editing and processing) and transmitted to the compression multiplexing system 110.

SDI (Serial Digital Interface) signal is a digital signal standard with a transmission rate of 270 Mbps. A composite digital video and four channels of digital audio signals are mixed.

The baseband system 100 is basically a tuner for receiving an analog broadcast signal from a boardcasting program provider (PP), a terrestrial broadcast signal to a DS-3 optical end station, a Yagi antenna, an integrated receiver decoder (IRD), respectively. A signal divider such as a frame synchronizer for converting and correcting the received source signal into an SDI signal and synchronizing frames, and an A / V router that connects / concentrates all broadcast signal channels for operational management; And a subtitle generator for inserting an advertisement, a logo, and a subtitle into the SDI signal to edit and process the signal.

The compression multiplexing system 110 inputs the broadcast video and audio signal to each A / V encoder (A / V Encoder) for each broadcast channel (for example, 100 channels) to convert a SDI (Serial Digital Interface) video signal to H.264. Compressing the audio signal with MPEG-2 AAC, multiplexing the PSI information related to the data broadcasting data and the boardcasting channel generated by the data encoder and the PSI generator together with the compressed broadcast video and audio, IP packetizing the multiplexed MPEG-2 TS to transmit the IP packetized transport stream to the network switch system (170).

The SI generator transmits service information (SI) to a plurality of IPTV terminals joined to a corresponding channel through the network switch system 170 separately.

The program related information (PSI) includes program association table (PAT) and program map table (PMT) information.

The network switch system 170 may use IPv4 multicast or IPv6 multicast. In case of using IPv4 multicast, the IP packetized transport stream (TS) based on the Class D IPv4 multicast address is multicasted to the multicast group of the boardcasting channel through the premium network 200. It is transmitted to the joined multiple IPTV terminals (IP STB + TV).

The network switch system 170 connects one or more L3 switches (L3 SW), a return path server system, and an IPTV terminal for multicasting an IP packetized transport stream, and is formed in a unicast manner between them. One or more L4 switches (L4 SW) for load balancing bidirectional data receiving traffic by appropriate loads, and one or more intrusion prevention systems for blocking harmful traffic between the L4 switch and the IP network.

In addition, IP multicast uses IPv4 multicast or IPv6 multicast technology.

In one embodiment, when the network switch system 170 uses IPv4 multicast, the IPv4 multicast address is 224.0.0.0 to 239.255.255.255, which is different for each broadcast channel (eg, 100 channels). Use In one embodiment, when using IPv4 multicasting, SBS uses 230.1.1.1 multicast address, KBS uses 230.1.1.2 multicast address, and EBS uses 230.1.1.3 multicast address as broadcast channel. do.

Previously, when using the PIM-SM multicast routing protocol, network switch system 170 sends a Register message to the rendezvous point (RP) and in response to a PIM JOIN message from the rendezvous point (RP). The registration process is performed at the rendezvous point RP, which is received at 170 and sets a path.

The billing processing system 130 is a provisioning system, and provides a billing processing function for an IPTV service for each member after user authentication.

The subscriber management system 140 provides membership registration and termination and member information management for IPTV service use.

The monitoring system 150 is a control system. The monitoring system 150 monitors a transmission failure of an A / V broadcast signal for IPTV broadcasting, a reception failure by monitoring a downlink of an IPTV headend system, and confirmation of subtitles.

The media operation system (MOC) 160 is a system that manages various business process information (program organization information, location information, contract information, product information, etc.) for operating a broadcasting business.

The media management system 160 manages broadcast program organization information, content and media management information, contract information of a program provider (PP) and a content provider (CP), and product information, and organically manages each system in the center of a broadcasting center. It acts as a coordinator that integrates and manages the information flow through linkage.

The media management system (MOC) 160 manages contracts in terms of acquisition, manages media and content metadata, acquires / manages EPG information, which is broadcast schedule information, manages real-time broadcast and VoD channels in terms of operations, Interworking with each subsystem, broadcast management in terms of agent analysis, VOD catalog creation management, various product management, analysis of marketing analysis such as settlement of CP / CA, subscriber viewing tendency, etc. It provides monitoring, video server transmission management and VOD subscriber authentication, recording and management of transmission results for settlement with CP / CA, and data synchronization with each subsystem.

The personalization authentication server 194 obtains a set-top box ID (SAID) and subscriber information (name, address, zip code, home phone number, mobile phone number, etc.) for the IPTV boardcasting service from the IP set-top box 310 of the subscriber. Receives an authentication request message including the authentication through the return path server system 173, and confirms whether the user subscribes to the service through the return pass server system 173 in response to the authentication request message to the subscriber of the subscriber Transmission to the IP set-top box 310.

The SAID of the IPTV terminal (STB + TV) is a unique ID assigned to the terminal by the communication company when the service is opened. The personalization authentication server (HDS server) and the HDS client of the STB terminal manage the information (SAID, IP Address, MAC Address, terminal model name) of the opened STB terminal. In addition, the IP set-top box 310 includes a single sign-on (SSO) client, HDS client for opening terminal information management, and stores the SAID of the terminal in the HDS client in the set-top box (STB).

In the case of personal authentication-based service, when authenticating a personal identification number (PIN), one master PIN number (consisting of four digits) can be assigned to one household and a plurality of PIN information can be assigned to household members.

The EPG providing system 171 provides an electronic program guide (EPG) to the IPTV terminal (STB + TV).

The EPG providing system 171 provides EPGs for all services including channels and programs, and the electronic program guides include any one of Box List EPG, Text EPG, Mosaic EPG, Mini EPG, and Tree Navigator EPG. An electronic program guide (EPG) is available.

When using the mosaic EPG, the mosaic A / V data transmitted from the EPG providing system 171 is encoded by the Mosaic A / V encoder of the compression multiplexing system 110 to be multicasted through the network switch system 170. Transmit to the IPTV terminal joined to the channel.

PSI information is generated through the data PSI / AIT generator as EPG information, and SI information is generated through the SI generator.

The mosaic EPG information providing system includes a multiviewer system for editing videos constituting a mosaic screen, a Mosaic A / V generator composed of an encoder encoding a mosaic screen, and information about metadata pages for mosaic screen composition ( Size of the mosaic screen), information about the Mosaic Cell included in the mosaic screen), and a mosaic metadata generator for transmitting the mosaic screen.

The mosaic metadata generator is responsible for authoring and transmitting additional information (Mosaic screen composition and attributes of each split screen and Mosaic screen navigation information) for satisfying the Mosaic EPG scenario.

The mosaic metadata generator consists of a Mosaic Authoring UI that authors mosaic data and a Carousel Generator that transmits them according to the mutually defined protocols with the Mosaic EPG client of the receiving STB.

Carousel Generator (Carousel Generator) transmits the metadata to the broadcast stream according to the protocol mutually defined with the mosaic EPG client of the receiving STB.

The Mosaic Authoring UI (MAUI) program is a web-based authoring program that makes it easy to create / edit metadata for Mosaic EPG.

The operator edits the Mosaic metadata using the Mosaic Authoring UI (MAUI) and saves the result in the DB of the IPTV headend.

The mosaic metadata stored in the DB is transmitted in the form of tables such as MMT (Mosaic Master Table), MIT (Mosaic Information Table) through a carousel generator.

The data broadcasting system 172 includes a data manager (DM) for authoring, verifying, organizing, and transmitting data for data broadcasting, and receiving a list of titles periodically updated from the boardcasting service server 90, and the data server / Data broadcasting data is generated by the data encoder and program related information (PSI) is generated by the PSI generator.

The data broadcasting system (DBS) 172 includes a data agent manager for managing data encoding, a PSI generator for generating program related information (PSI), an SI generator for generating service information (SI), data Data Server / Data Encoder for encoding broadcast data, Multiplexer Manager (MM) for managing multiplexing function of data and PSI information for data broadcasting, and Scheduler UI It includes.

The return pass server system 173 records the log information of the user, records the start time and end time of boardcasting service use, processes bidirectional data by a data provider (DP), and IP set-top boxes (310) of the IPTV board casting service for online bill transfer, bidirectional data usage history / billing interworking processing, and transmits the bi-directional data and the corresponding response data to the IP set-top box (310) Send to unicasting.

Title list and video file with different UDP port number transmitted from IPTV headend system 100a, data for broadcasting data, PSI information for boardcasting channel, SI information, and EPG are multiplied by boardcasting channel in premium network 200. Multiple IP set-top boxes joined to a multicast group are sent using the IP multicast protocol (eg PIM-SM).

IP multicast routing protocols used in routers and L3 switches in the premium network 200 include Distance Vector Multicast Routing Protocol (DVMRP), Multicast Extensions to OSPF (MOSPF), Core Based Tree (CBT), and Protocol Independent Multicast (PIM-SM). Multicast routing protocols of either -Sparse Mode) or Protocol Independent Multicast-Dense Mode (PIM-DM) can be used.

Each router including rendezvous point (RP) of IPTV backbone network / access network / subscriber network, metro switch (L3 switch), N-Topia switch (L3 switch) (N-Topia: LAN equipment installed in a group building where UTP is installed Layer 3 network equipment including a service using a high-speed Internet) and a subscriber switch (L3 switch) 220 uses a PIM-SM multicast routing protocol, respectively, and uses an IPTV terminal (STB + TV) 310 and 300 and subscriber aggregation. Devices (xDSL Concentrator, DSLAM) 230 use IGMP and IGMP Snooping protocols, respectively.

The Internet Group Management Protocol (IGMP) is used to transmit an IGMP Join / Ledave message to an L3 switch (eg, subscriber switch 220) to the corresponding multicast group to request selection / deselection of the selected broadcast channel from the IP set-top box.

The IGMP Snooping protocol is a Layer 2 device (eg subscriber concentrator) located between an IP set-top box 310 terminal of a subscriber requesting channel selection / release and an L3 switch (eg subscriber switch 220) accepting the request. 230)), the Layer 2 device (subscriber concentrator 230), which operates the IGMP Snooping protocol, recognizes an IGMP transmit / receive message between the IP STB terminal and the Layer 3 network device, and performs a channel request. Only the set top box 310 transmits channel information.

When the subscriber's IP set-top box 310 performs IGMP join to the multicast group of the boardcasting channel, the subscriber list (L3 switch) 220 has a UDP list with different port numbers, video files, data broadcasting data, and boardcasting channel. Receive an IP packetized stream containing PSI information for a multicasting.

The Rendezvous Point (RP) of the premium network 200 manages the PIM Join list and the PIM Prune list for each broadcast channel (eg, 100).

Since the broadcast channel is a multicast group, the rendezvous point RP of the premium network 200 manages a join list and a prune list for each of a plurality of multicast groups (broadcast channels).

In order to reduce the channel zapping time of the IPTV terminal, the subscriber switch (router 3) 220 periodically uses the PIM-SM Join message to continuously maintain all 100 groups (all broadcast channels) using static join. It transmits to upper L3 network equipment (Router 3, 2, 1) (Ntopia Switch, Metro Switch, Rendezvous Point (RP)). As a result, the subscriber switch (router 3) 220 downloads the traffic of all broadcast channels (eg, 100 channels). The cycle occurs within 128 seconds when the group join time ends, and maintains about 100 groups (broadcast channels) continuously.

Since the subscriber IP set-top box 310 transmits an IGMP Join / Leave message to the subscriber switch (L3 switch) 220, the subscriber switch 220 periodically requests a static join for all 100 broadcast channels. Rendezvous points (RPs) and routers 1,2,3 (metro switches, Ntopia switches, subscriber switches) always have PIM Join for all multicast groups (all broadcast channels) regardless of the subscriber's set-top box's IGMP Leave message. Keep it. Therefore, a large amount of channel traffic of all broadcast channels (eg, 100 channels) of the IPTV headend system is stably reached to the subscriber switch (Router 3) 220.

Since the subscriber switch (L3 switch) 220 has downloaded the traffic of all broadcast channels, it reduces the channel zapping time and UDP according to the requested IGMP Join message from the IP set-top box 310 of the plurality of subscribers. The IP packetized stream including the title list, video file, data broadcasting data, and PSI information about the boardcasting channel having different port numbers is transmitted to the IPTV terminal joining the boardcasting channel.

Subscriber switch (L3 switch) 220 through the subscriber concentrator (L2 equipment) 230 to send two IGMP group specific query messages every one second interval to check whether there is another STB watching the current broadcast for each broadcast channel It transmits to the IP set-top box 310 of a plurality of subscribers.

The IP set-top boxes 310 of a plurality of subscribers access the subscriber switch 220 according to an IGMP Join / Leave message to select and release an IPTV broadcast channel.

The subscriber's IP set-top box 310 sends an IGMP Join message via the subscriber concentrator (DSLAM, xDSL concentrator) 230 or FES (Fast Ethernet Switch) when the subscriber selects and changes the broadcast channel. (220), and when the subscriber stops watching or when the subscriber changes the broadcast channel, an IGMP Leave message for the previously viewed broadcast channel is transmitted to the subscriber switch 220.

4 is a flowchart illustrating a method of providing an IPTV boardcasting service using RSS.

The boardcasting service server 90 requests the RSS content with the desired search keyword to the content server using the RSS protocol (step S10).

The boardcasting service server 90 requests an RSS with a desired search keyword from an RSS server, searches a content server, collects content including a channel title list and a video file from the content server, classifies the content into categories, and stores the video file. And a list of titles linked with (step S11).

The title list includes boardcasting content information including the program name of the video file, the size and the number information of the video file.

The data broadcast system 172 receives a list of titles related to boardcasting updated by category from the data transmission unit (DA) 90a of the boardcasting service server 90 to the data manager DM. (Step S12).

The data broadcasting system 172 generates data for data broadcasting related to board casting and generates PSI information by the PSI generator (step S13).

The EPG providing system 171 provides an EPG including a boardcasting channel to a plurality of IPTV terminals (step S14).

The baseband system 100 synchronizes frames of the video file received from the boardcasting service server, distributes broadcast signals for each channel, and provides broadcast video and audio signals (step S15).

The compression multiplexing system 110 multiplexes the A / V signal including the video file, the data broadcasting data, and the PSI information for the boardcasting channel, and then IP packetizes the multiplexed stream (step S16).

The network switch system 170 transmits the IP packetized transport stream including the title list and the video file to the IPTV terminal joined to the boardcasting channel in a multicasting manner via the IP network by varying the UDP port number (step S17). ).

The personalization authentication server receives an authentication request message including a set-top box ID (SAID) from the IPTV terminal for the IPTV boardcasting service (step S18), and confirms whether to subscribe to the IPTV boardcasting service (step S19). To the IPTV terminal, and transmits subscriber information on the issued ticket to the boardcasting service server 90 (step S20).

Subscriber switch (L3 switch) 220, which always maintains static joins for all 100 broadcast channels with the upper router and L3 switch, joins the multicast group of the boardcasting channel (IGMP Join). The IP packetized transport stream containing the title list and the video file having a different number is transmitted (step S21).

The boardcasting service server 90 charges by any one of the following methods: account transfer payment, credit card payment, mobile phone payment, and communication fee total payment per video file transmission (step S22).

5 is a flowchart illustrating a method of receiving an IPTV board casting service in a set-top box of a subscriber.

The IPTV terminal receives the EPG information including the boardcasting service channel from the IPTV headend system 100a (step S31).

Previously, the user is a member registration process for transmitting the membership registration information for the IPTV boardcasting service from the IPTV terminal to the boardcasting service server.

After the boardcasting IPTV channel number is selected on the EPG or the main screen, the IPTV terminal transmits an authentication request message including a set-top box ID (SAID) to the personalization authentication server for use of the IPTV boardcasting service (step S32). An authentication ticket is received from the authentication server to the IPTV terminal (step S33).

The IPTV terminal transmits an IGMP Join message to the boardcasting IPTV channel number, and downloads and stores the title list and corresponding video files having different UDP port numbers in real time (step S34).

The IPTV terminal determines whether the download is complete based on the boardcasting content information (step S35), and if it is determined that the download is completed, transmits an IGMP Leave message for the boardcasting channel to the subscriber switch 220 (step S37).

If it is determined in step S35 that the download is not completed, the IPTV terminal maintains the state joined to the boardcasting channel (step S36).

Even if the viewer selects another channel, the IPTV terminal does not transmit the IGMP Leave message for the boardcasting channel if the download is not completed, and continues to download the title list and the video file.

The IPTV terminal may display the title list one by one on the channel title screen based on the received title list, or may output the speech sequentially in TTS (Text To Speech) (step S38).

The IPTV terminal outputs a title list on the channel title screen, and if the title displayed on the channel title screen is selected by the remote controller, the pre-stored video file associated with the selected title is output on the TV screen (step S39).

Pre-downloaded files react significantly faster when playing back TV screens than when watching regular VODs. This is because the reception time and the buffering time are reduced after the VOD application.

Recently, a TV with a PVR function, such as a time shift TV, has a storage capacity of several hundred gigabytes, and a storage capacity hard disk of a set-top box is provided with a 300GB hard disk. In addition, the downloaded video file is not continuously stored, but is operated to be deleted after a predetermined time or in the order of being stored first.

The following describes a method of providing an advertisement of a Vodcasting TV service.

The IPTV terminal provides a channel title when selecting a boardcasting channel. When a channel title appears on the screen, it presents the ad title to a specific part of the screen (for example, at the bottom of the screen) just like a regular news title. General TV commercials are sent before and after the program, and the cost of advertising depends on the popularity of the program. Vodcasting TV is expected to have more people watching once or twice because of the nature of the channel.

Therefore, the boardcasting service provider sets a different advertising title for each viewing time and sets an advertising fee. For example, from the hours of the evening to the hours of the viewing preference time, the advertising fee is set differently at the time of advertising or the time when a general TV channel is advertised.

The time information staying on the Vodcasting TV channel is sent to the IPTV service platform for statistics on the viewing preference information about which time people watch the most. The calculated viewing preference information is used when the advertising fee is set. In addition, board-casting service providers use the statistics when they click and watch advertisement titles as an additional factor in calculating advertising costs. At this time, the IPTV terminal is also downloaded the advertising video to the set-top box, unlike the general 30-second advertising has the advantage that can be described in more detail, such as advertising the home shopping products.

As described above, the method of the present invention may be implemented as a program and stored in a recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.) in a computer-readable form.

As described above, although described with reference to a preferred embodiment of the present invention, those skilled in the art various modifications of the present invention without departing from the spirit and scope of the invention described in the claims below Or it may be modified.

1 is a conceptual diagram of a boardcasting service using RSS (Really Simple Syndication).

2 is a block diagram of an IPTV boardcasting service system interworking with a boardcasting service server.

3 is an IPTV headend system configuration diagram.

4 is a flowchart illustrating a method of providing an IPTV boardcasting service using RSS.

5 is a flowchart illustrating a method of receiving an IPTV board casting service in a set-top box of a subscriber.

Claims (27)

An IPTV boardcasting service system using RSS (Really Simple Syndication), A boardcasting service server for collecting video file contents by requesting content from various content servers, classifying by category, generating a title list for a boardcasting service, and providing a video file linked with the title list; And  An IPTV headend system for transmitting EPG information including a title list and a video file and a boardcasting channel provided from the boardcasting service server to the IPTV terminal in a multicast manner through an IP network; IPTV board casting service system using RSS, including. The method of claim 1, The board casting service server, A control unit controlling each module for the board casting service; A member information manager to manage member information for an IPTV boardcasting service; A content collector for collecting content including the video file using an RSS protocol; A category classification unit for classifying the collected content by category; A title list generating unit for generating a list of titles linked with video files by editing contents classified by categories; A database for storing title lists and video files for each category for the IPTV boardcasting service; And A data transmitter for updating the title list and the video file at regular time intervals and transmitting the same to the IPTV headend system; IPTV board casting service system using RSS, including. The method of claim 2, The board casting service server, IPTV board casting service system using RSS further comprising a member information management unit for managing member information for IPTV board casting service. The method of claim 2, The board casting service server, IPTV boardcasting service system using RSS further comprising a billing processing unit for processing billing for the IPTV boardcasting service for each member. The method of claim 2, The board casting service server, The IPTV boardcasting service system using RSS, which is used in connection with a DRM server for applying DRM encryption to the video file for the IPTV boardcasting service. The method of claim 1, The IPTV terminal, An IPTV boardcasting service system using RSS, including a TV with an IP set-top box, an IP set-top box connected to a user's TV, a computer, a notebook, or a personal portable terminal. The method of claim 1, And the title list and the video file are transmitted by different UDP port numbers from the IPTV headend system. The method of claim 1, The title list, An IPTV boardcasting service system using RSS, comprising boardcasting content information including a program name of a video file, a size and number of video files. The method of claim 1, The IPTV headend system, An EPG providing system for providing an electronic program guide including a boardcasting channel; A data broadcasting system having a data manager (DM) for receiving a title list including text and images which are periodically updated from the board casting service server, and generating data for data broadcasting related to board casting; A PSI generator for generating PSI information for a boardcasting channel; A baseband system which frame-synchronizes the video file received from the boardcasting service server and distributes broadcast signals for each channel to output broadcast video and audio signals; A compression multiplexing system for multiplexing the A / V signal including the video file, the data for broadcasting data, and PSI information for the boardcasting channel, and outputting the multiplexed stream by IP packetizing; A network switch system for transmitting an IP packetized transport stream and a title list including the video file received from the compression multiplexing system in a multicast manner with different UDP port numbers; And A return path server system connected to an IPTV terminal and a return channel through an IP network, recording log information of a user, and receiving bidirectional data from the IPTV terminal in a unicast manner; IPTV board casting service system using RSS, including. The method of claim 9, Receiving an authentication request message for using an IPTV boardcasting service from the IPTV terminal, transmitting an authentication ticket to the IPTV terminal in response to the authentication request message, and broadcasting the subscriber information on the issued authentication ticket. IPTV board casting service system using RSS further comprising a personalization authentication server for transmitting to the service server. The method of claim 9, The compression multiplexing system, IPTV boardcasting using RSS characterized in that the A / V signal including the video file received from the boardcasting service server, the data broadcasting data, and the PSI information for the boardcasting channel are streamed using the MPEG2 TS method. Service system. The method of claim 9, The IPTV headend system, The IPTV board casting service system using RSS, characterized in that further comprising a subscriber management system for subscription and termination, the member information management for the IPTV service. The method of claim 9, IPTV boardcasting service system using RSS, characterized in that it further comprises a billing processing system for processing billing for the use of IPTV service for each member. The method of claim 9, The L3 network equipment used for the IP network uses a Protocol Independent Multicast-Sparse Mode (PIM-SM) multicast routing protocol, and the IPTV terminal uses an IGMP Join / Leave message to select / release a broadcast channel. L2 network equipment of the subscriber network connecting the IP network and the IPTV terminal IPTV board casting service system using RSS, characterized in that to use the IGMP Snooping protocol to recognize the IGMP transmission and reception messages of the IPTV terminal requesting the channel. As an IPTV boardcasting service method using RSS, (a) the boardcasting service server requesting the content to the content server using the RSS protocol; (b) collecting, by the boardcasting service server, a video file from a content server, categorizing the video file into categories, and generating a list of titles linked with the video file; (c) a data broadcasting system receiving the title list from a data agent (DA) of the boardcasting service server to a data manager (DM); (d) the data broadcasting system generating data for data broadcasting related to board casting and generating PSI information by a PSI generator; (e) the EPG providing system providing an EPG including boardcasting to a plurality of IPTV terminals; (f) a baseband system synchronizing a frame of a video file received from the boardcasting service server and distributing broadcast signals for each channel to provide broadcast video and audio signals; (g) IP-packing the multiplexed stream after the multiplexing system multiplexes the A / V signal including the video file, the data broadcasting data and the PSI information for the boardcasting channel; (h) a network switch system transmitting the IP packetized transport stream including the title list and the video file in a multicast manner to different IP ports by different UDP port numbers; And (i) The personalization authentication server receives the authentication request message for the IPTV boardcasting service from the IPTV terminal, checks whether the IPTV boardcasting service is subscribed, and transmits the corresponding authentication ticket to the IPTV terminal, and the subscriber to the issued ticket. Transmitting information to the boardcasting service server; IPTV board casting service method using the RSS. The method of claim 15, (j) the IPTV terminal joins a multicast group of a boardcasting channel, receives a title list and a video file having a different UDP port number, and stores the video file and the title list. IPTV board casting service method. The method of claim 15, (k) the IP broadcasting board broadcasting service method using the RSS, characterized in that further comprising the step of managing the membership information, membership registration and termination, the member information for the IPTV board casting service. The method of claim 15, (l) IPTV boardcasting service method using RSS further comprising the step of processing the billing for the use of IPTV boardcasting service for each member. The method of claim 15, The title list, An IPTV boardcasting service method using RSS, comprising: boardcasting content information including a program name of a video file, a size and number of video files. An IPTV terminal is a method for receiving IPTV boardcasting content. (a) receiving, by the IPTV terminal, EPG information including a boardcasting service channel from the IPTV headend system; (b) selecting the boardcasting IPTV channel number from the EPG or the main screen, and then transmitting an authentication request message including the SAID to the personalization authentication server for use of the IPTV boardcasting service; (c) receiving an authentication ticket from the personalization authentication server to the IPTV terminal; (d) transmitting an IGMP Join message to the boardcasting IPTV channel number and downloading and storing title lists and video files having different UDP port numbers in real time; And (e) outputting a title list to the channel title screen of the IPTV terminal, and if a title displayed on the channel title screen is selected, outputting a pre-stored video file associated with the selected title to the TV screen; IPTV board casting content receiving method comprising a. The method of claim 20, The title list, IPTV board-casting content receiving method comprising a board-casting content information including the program name of the video file, the size and number information of the video file. The method of claim 21, (f1) determining whether the download is complete based on the boardcasting content information; And (f2) if it is determined that the download is completed, transmitting an IGMP Leave message; IPTV board casting content receiving method further comprising. The method of claim 22, In the step (f1), If it is determined that the download is not completed, IPTV board casting content receiving method characterized in that the state of being joined to the board casting channel. The method of claim 20, Step (e), And displaying the title list one by one on the channel title screen based on the received title list or sequentially outputting voices in text to speech (TTS). The method of claim 20, Step (e), A method of receiving an IPTV boardcasting content, characterized in that, when a channelcasting channel is selected, when a channel title appears on a screen, an advertisement title is provided before and after a program on a specific portion of the screen. The method of claim 20, (g) the IPTV terminal further comprising the step of transmitting the subscription information for the IPTV boardcasting service to the boardcasting service server. A computer or an IPTV terminal, comprising: (a) an IPTV terminal receiving EPG information including a boardcasting service channel from an IPTV headend system; (b) selecting a boardcasting IPTV channel number from the EPG or the main screen, and then transmitting an authentication request message including the SAID to the personalization authentication server for use of the IPTV boardcasting service; (c) receiving an authentication ticket from the personalization authentication server to the IPTV terminal; (d) transmitting an IGMP Join message to the boardcasting IPTV channel number and downloading and storing title lists and video files having different UDP port numbers in real time; And (e) outputting a title list to the channel title screen of the IPTV terminal, and outputting a pre-stored video file associated with the selected title if a title displayed on the channel title screen is selected; A recording medium that can be read by a computer or an IPTV terminal on which a program for realizing the data is recorded.

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