KR20080090112A - Iptv music portal service system and method thereof transmitting and receiving music contents - Google Patents

Abstract

An IPTV(Internet Protocol TV) music portal service system and its transmission/reception method are provided to offer a music search service using a music search tool to viewers and allow the viewers to select a music menu to enjoy desired music according to an AOD(Audio On Demand) method. A DBS(Data Broadcasting System)(192) includes a DM(Data Manager) for receiving periodically updated music information from a music contents provider, and generates data for data broadcasting including received music information. A PSI/SI(Program Specific Information/Service Information) providing system provides PSI/SI information with respect to a music channel to a user terminal. A plurality of COD servers including a VOD server(197) and a file server(198) store video music contents and provide them to the user terminal. A MOC(Media Operation Core)(170) receives the video music contents provided from the music contents provider and transmits the same to the COD servers. A multiplexing system multiplexes the data for data broadcasting and the PSI/SI information, IP-packetizes the multiplexed stream and outputs the same. A network switch system transmits the IP-packetized transport stream to the user terminal in a multicast manner via an IP network. An RP(Return Path) server system(193) is connected with the user terminal and a return channel via the IP network and receives bi-directional data in a unicast manner from the user terminal for an interactive IPTV music portal service.

Description

IPTV music portal service system and method for transmitting and receiving thereof

1 is a block diagram of an IPTV music portal service system according to the present invention;

2 is a diagram illustrating a process of providing IPTV music content according to the present invention.

FIG. 3A illustrates a pitcher-catcher management system. FIG.

3B is a diagram illustrating Static Join to reduce channel zapping time in a subscriber IP set-top box.

4 is a flowchart illustrating a method of transmitting music content in an IPTV music portal service system according to an embodiment of the present invention.

5 is a flowchart illustrating a method for receiving music content in an IP set-top box of a subscriber according to an embodiment of the present invention.

<Explanation of symbols for main parts of the drawings>

100: baseband system 110: compression multiplexing system

120: restricted access system 130: back office system

140: subscriber management system 150: network switch system

160: monitoring system 170: media management system (MOC)

191: EPG providing system 192: data broadcasting system (DBS)

193: Return Pass Server System 194: Music Information System

200: premium network 210: internet network

201: Multicast Supported Router 211: Unicast Supported Router

220: subscriber concentrator 230: subscriber switch

300: TV 310: IP Set Top Box (IP STB)

The present invention relates to an IPTV music portal service system and a method for transmitting and receiving the same, and in particular, to listen to music by genre in the form of audio channels in the form of AOD (Audio On Demand) in a TV connected to an IP set-top box of a subscriber through a high-speed internet network from a music information system. The present invention relates to an IPTV music portal service system and a method for transmitting / receiving music videos, music ranking information per day / genre, and showcase information, and searching for music to viewers to enjoy desired music.

In general, Internet Protocol Television (IPTV) is a television (TV) connected to an IP set-top box (STB) in addition to receiving broadcast signals transmitted from a program provider (PP), terrestrial, cable, and satellite. Through IP network, it provides ICOD (Internet Contents On Demand) service in the form of digital convergence that converges broadcasting and communication such as TV Internet contents, news, and video (T-VOD).

The main components of the IPTV service system include the IPTV Headend system, the IP backbone network, the IP backbone, the access network (e.g. xDSL, HFC, FTTC, FTTH structure), and subscriber terminals (IP STB, TV). do.

Terrestrial IPTV service is a television (TV) connected to the subscriber's IP set-top box (STB) connected to the high-speed Internet network, using the remote control or the key input of the television to select the desired program by the electronic program guide (EPG), after user authentication, Use a variety of Internet content, including news, drama, movies, and sports.

 The IPTV service is a high-speed Internet network that combines TV contents in the form of convergence of communication and broadcasting according to the digital convergence of the broadcast provider of a program provider (PP) and the content provider (CP) of the Internet market. Provides multimedia content including text, audio, and video data to a TV connected to an IP set-top box (STB), and provides interactive IPTV services by connecting to a two-way broadcast service system through a return channel through a return pass server. to provide.

TV (TV) terminal connected to IP set-top box (STB) equipped with middleware protocol for IPTV service is a convergence service in the era of digital convergence (VoIP), high-speed Internet (Internet), and IPTV service (broadcasting). Triple Play Service (TPS), which includes IPTV), and SD / HD-level ICOD (Internet Contents) through a next-generation network that requires broadband bandwidth from IPTV headend systems to premium services. On Demand) to receive broadcast and Internet content.

The standardization of IPTV's data broadcasting is based on the Digital Video Broadcasting-Multimedia Home Platform (DVB-MHP) of satellite data broadcasting at the European Telecommunication Standards Institute (ETSI) in Europe, and the Advanced Capability (ACAP) The Common Application Platform (SCTE) and the Society of Cable Television Engineers (SCTE) are pushing for standardization of data broadcasting on cable TV's OCAP (Open Cable Application Platform), and Java (JAVA) technology in IP set-top boxes (STBs). Adopt a two-way IPTV service.

ACAP (Advanced Common Application Platform) is a terrestrial data broadcasting standard that provides two-way data broadcasting service to TV by installing ACAP middleware for terrestrial data broadcasting in SD / HD class set-top box (STB).

Conventional Internet-based music information service system has provided sound source data in real time to a user in real time via the Internet from a VOD server that provides sound information using a separate sound source playback client having a sound codec audio codec.

However, the IPTV service system does not provide enhanced IPTV music information service to viewers by listening to music genres, listening to music videos, music rankings by day / genre, ongoing or past showcase information, and viewers based on the location information of IP set-top boxes of subscribers. There was a problem.

The present invention has been proposed to solve the problems of the prior art, and is connected to the subscriber's IP set-top box (STB) through a high-speed Internet to a selected music channel from a music information system based on the terrestrial Advanced Common Application Platform (ACAP) standard. The latest sound source by music genre and music video on TV are effectively distributed to COD servers distributed to various regional nodes through the feature-catcher system, and the music video about music genre and the latest music is selected and the music video about the latest music genre Listening, bento rankings providing daily / general music ranking information, providing ongoing or past showcase information, providing viewers with music search capabilities using the music search tool, and AOD (Audio On Demand) IPTV music portal service system for watching video and its transmission / reception method The purpose is to provide.

In order to achieve the object of the present invention, the present invention is an IPTV music portal service system, comprising a data manager (DM) for receiving periodically updated music information from a music content provider, the data including the received music information A data broadcast system for generating broadcast data; A PSI / SI providing system for providing PSI / SI information on a music channel to a user terminal; A plurality of COD servers storing video music contents and providing the same to a user terminal; A media management system (MOC) for receiving video music contents provided from a music content provider and transmitting the received video music contents to the plurality of COD servers; A multiplexing system for multiplexing data broadcasting data including the music information and PSI / SI information for the music channel, and outputting the multiplexed stream by IP packetizing; A network switch system for transmitting the IP packetized transport stream received from the multiplexing system to a user terminal in a multicast manner through an IP network; And a return pass (RP) server system connected to the user terminal through the IP network through a return channel and receiving bidirectional data from the user terminal in a unicast manner for an interactive IPTV music portal service.

In order to achieve the other object of the present invention, the present invention is an IPTV music portal service system, the frame synchronization of the broadcast signal received from the program provider (PP) or terrestrial frame, and distributes the broadcast signal for each channel to broadcast video and audio signals An output baseband system; A data broadcasting system having a data manager (DM) for receiving periodically updated music information from a music content provider, and for generating data broadcasting data including the received music information; A PSI / SI providing system for providing PSI / SI information on a music channel to a user terminal; An EPG providing system for providing electronic program guide (EPG) information including a music channel to the user terminal; A plurality of COD servers storing video music contents and providing the same to a user terminal; A media management system (MOC) for receiving video music contents provided from a music content provider and transmitting the received video music contents to the plurality of COD servers; A compression multiplexing system for multiplexing the data broadcasting data including the music information, the PSI / SI information for the music channel, and the EPG information including the music channel, and outputting the multiplexed stream by IP packetization; A network switch system for transmitting the IP packetized transport stream received from the compression multiplexing system to a user terminal in a multicast manner through an IP network; And a return pass (RP) server system connected to the user terminal through the IP network through a return channel and receiving bidirectional data from the user terminal in a unicast manner for an interactive IPTV music portal service.

The IPTV music portal service system according to the present invention receives an authentication request message for the IPTV music portal service from the user's terminal through the return pass server system, and receives an authentication ticket in response to the authentication request message. The apparatus further includes a personalization authentication server for transmitting to the user terminal through the return path server system.

The music content provider (CP) comprises a music information system, the music information system comprising: a sound source server for providing sound source data to the user terminal; A music database for storing sound source data for the IPTV music portal service; A lyrics database that stores lyrics data for the sound source; A content management server (CMS) for receiving subscriber information on a ticket issued from a personalization authentication server to identify a subscriber using an IPTV music portal service, and managing the music content in connection with the sound source server; A music service data agent (DA) which periodically updates text data and image data of music contents and transmits the same to the data manager DM of the data broadcasting system DBS; And a delivery server (Pitcher) for transmitting and updating moving image music contents of the music contents to the media management system (MOC).

The COD server includes one or more file servers for providing music related files; And one or more VOD databases and VOD servers for providing video music content to the user terminal.

The COD server is disposed at local nodes distributed in various regions, and the moving picture music contents are transmitted from the media management system (MOC) in a multicast manner.

The media management system (MOC) comprises: a service uploading server (Catcher) for receiving video music content provided from the sound source content provider; A content database for storing the moving picture music content received through the service uploading server; And a transaction server for distributing music contents stored in the content database in a multicast manner to a plurality of COD servers distributed in various regions.

The multiplexing system is characterized by multiplexing data broadcasting data including the music information and PSI / SI information for the music channel according to an ACAP (Advanced Common Application Platform) data broadcasting standard.

The multiplexing system may generate an IP packetized transport stream of data broadcasting data including the music information, PSI / SI information for the music channel, and EPG information including the music channel.

The compression multiplexing system is configured to multiplex streamed broadcast video and audio signals, data broadcasting data including the music information, and PSI / SI information for the music channel according to the Advanced Common Application Platform (ACAP) data broadcasting standard. It features.

The compression multiplexing system includes a transport stream IP-packed streamed broadcast video and audio signals, data broadcasting data including the music information, PSI / SI information for the music channel, and EPG information including the music channel. It characterized in that to generate.

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

The IPTV music portal service system further includes a back office system for processing billing for use of the IPTV music portal service for each subscriber.

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

The user terminal includes a CPU, a media processor, a flash RAM, a hardware layer of an Ethernet module, a system software layer including a device driver and an operating system, a Java virtual machine (JVM), a JNI, an ACAP API, and a streaming protocol. It has an installed middleware layer, an electronic program guide (EPG) for selecting an IPTV service channel, an application layer including a client for sound source playback supporting various multi-codecs, and provides an ADSL / VDSL interface and a LAN interface. At least one of a WLAN interface, a Bluetooth communication interface, a ZigBee interface, an IEEE 1394 interface, a UWB interface, or a USB interface may be included, and may be used in connection with a home gateway.

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

In order to achieve another object of the present invention, the present invention provides a method for transmitting music content in an IPTV music portal service system, wherein (a) a data broadcasting system (DBS) is a data manager from a data agent (DA) of a music content provider. Receiving music information updated through the DM; (b) the media management system (MOC) receiving moving picture music content from a music content provider; (c) the media management system transmitting the moving picture music contents provided in the step (b) to each COD server in a multicast manner; (d) the media management system notifying the music content provider's data agent (DA) of the fact that the video music content is transmitted to each COD server to the music content provider; (e) receiving, by the data broadcasting system, music information related to the moving picture music content; (f) generating, by the data broadcasting system, data for data broadcasting including music information transmitted in (a) and (e); (g) the PSI / SI providing system generating PSI / SI information for the music channel; (h) the multiplexing system multiplexing the data broadcasting data including the music information and PSI / SI information for the music channel, and then IP packetizing the multiplexed stream; (i) the network switch system transmitting the received IP packetized transport stream to the plurality of user terminals in a multicast manner via the IP network; And (j) when the video music content providing request message including the location information of the user terminal is received from the user terminal through the return pass server system, the corresponding music video video music contents are provided to the user terminal in a unicast manner. It includes a step.

In the method for transmitting music content in the IPTV music portal service system according to the present invention, the authentication request message including the location information of the user terminal for use of the IPTV music portal service from the user terminal is personalized and authenticated through the return pass server system. Receiving to a server; And the personalization authentication server confirms whether to subscribe to the IPTV music portal service, transmits an authentication ticket to the user terminal through the return pass server system, and transmits subscriber information on the issued ticket to the music information system of the music content provider. The method further includes the step of transmitting.

The location information of the user terminal is characterized by including a set-top box ID (SAID) and subscriber information.

Step (c) may include: (c-1) the media management system (MOC) receiving new video music content from a music content provider (CP); And (c-2) transmitting the received video music content to a plurality of COD servers distributed to various local nodes by multicasting through a transaction server.

The step (j) is (j-1) when the media management system receives the video music content provision request message including the location information of the user terminal, the media management system (MOC) is based on the location information of the user terminal Transmitting URL information of the closest optimal COD server to the user terminal through the return path server system; And (j-2) the COD server receiving a provision request message for the selected video music content from the user terminal and providing the corresponding video music content to the user terminal.

In the IPTV music portal service system according to the present invention, a method for transmitting music content includes a sound source or lyrics data request message from a client for playing a sound source of the user terminal to a music information system having a sound source server and a lyrics DB of the music content provider. Transmitting; And providing corresponding sound source or lyrics data from the music information system to the client for sound source reproduction of the user terminal.

The method for transmitting music content in the IPTV music portal service system according to the present invention further includes a subscriber management step of managing subscription and termination and membership information for the IPTV music portal service.

The method for transmitting music content in the IPTV music portal service system according to the present invention further includes the step of processing the charging for the use of the IPTV music portal service for each subscriber.

In order to achieve another object of the present invention, the present invention provides a method for transmitting music content in an IPTV music portal service system, comprising: (a) a baseband system frame synchronization of a broadcast signal received from a program provider (PP) or terrestrial; Distributing broadcast signals for each channel to output broadcast video and audio signals; (b) the data broadcasting system receiving music information updated through the data manager DM from the data agent DA of the music content provider; (c) the media management system receiving video music content from a music content provider; (d) the media management system transmitting the moving picture music content provided in step (b) to each COD server in a multicast manner; (e) the media management system notifying the music content provider of the fact that the moving picture music content is transmitted to each COD server; (f) the data broadcasting system receiving music information related to the moving picture music content; (g) generating, by the data broadcasting system, data for broadcasting data including the music information transmitted in (a) and (e); (h) the PSI / SI providing system generating PSI / SI information for the music channel; (i) the EPG providing system generating electronic program guide (EPG) information including a music channel; (j) The multiplexed system multiplexes the multiplexed stream after multiplexing the data for broadcasting data including the broadcast video and audio signal with the music information, the PSI / SI information for the music channel, and the EPG information including the music channel. IP packetizing; (k) the network switch system transmitting the received IP packetized transport stream to the plurality of user terminals in a multicast manner via the IP network; And (l) receiving a music content provision request message from the user terminal to the local node's COD server, and providing the corresponding music content to the user terminal in a unicast manner.

In order to achieve another object of the present invention, the present invention provides a method for receiving music content in an IPTV music portal service system, comprising: (a) a user terminal receiving EPG information including a music channel transmitted from an IPTV service system; step; (b) receiving data broadcasting data including music information to the user terminal; (c) transmitting a sound source or lyrics request message selected by the client for sound source reproduction of the user terminal to the music information system of the music content provider, and receiving the corresponding sound source or lyrics data to the sound source reproduction client of the user terminal; (d) transmitting a video music content provision request message including location information of the user terminal to a media management system (MOC); (e) receiving URL information of a COD server of a local node storing music content from the media management system through a return pass server system; And (f) accessing the COD server by the client for playing a sound source to receive the moving picture music content by streaming.

In the method for receiving music content in the IPTV music portal service system according to the present invention, (g1) when a music portal menu is selected using an electronic program guide (EPG), the authentication request message for using the IPTV music portal service is personalized and authenticated. Transmitting to a server; And (g2) receiving an authentication ticket from the personalization authentication server through the return pass server system.

The method for receiving music content in the IPTV music portal service system according to the present invention further includes (k) providing daily, genre ranking information and show case information on the IPTV music portal service screen, and providing a music search function. do.

In order to achieve another object of the present invention, the present invention provides an IP set-top box or a portable terminal of a subscriber connected to a computer or TV, (a) the user terminal receives EPG information including a music channel transmitted from the IPTV service system; Function; (b) receiving data broadcasting data including music information to the user terminal; (c) transmitting a sound source or lyrics request message selected by the client for sound source reproduction of the user terminal to a music information system of a music content provider, and receiving the corresponding sound source or lyrics data to the client for sound source reproduction of the user terminal; (d) transmitting a video music content providing request message including location information of a user terminal to a media management system (MOC); (e) a function for receiving URL information of a COD server of a local node storing music content from the media management system via a return pass server system; And (f) a recording that can be read by an IP set-top box or a portable terminal of a subscriber connected to a computer or TV that records a program for realizing a function of a client for playing a sound source connecting to the COD server to receive a video music content by streaming. Media.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

1 is a block diagram of an IPTV music portal service system according to the present invention.

The IPTV service system is an IPTV for transmitting data broadcasting data including music information from a program provider (PP) / terrestrial or IPTV content provider (CP), and EPG information including a PSI / SI information and a music channel for a music channel. Headend system, IP backbone network using multicast routing protocol as IP network, TV connected to subscriber network (e.g. Ethernet, xDSL, HFC, FTTC, FTTH), IP set-top box (STB) 300 It consists of a user terminal having a (310).

The subscriber network can be composed of any one of Ethernet, xDSL (ADSL, VDSL), Hybrid Fiber Coaxial Cable (HFC), Fiber To The Curb (FTTC), and Fiber To The Home (FTTH) structures.

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

The user terminal is assigned an IPv4 address or an IPv6 address.

The IP STB 310 is a hardware layer composed of STB hardware such as a CPU, a media processor, a flash RAM, and an Ethernet module, a system software layer including a device driver and an operating system, and a Java virtual machine. (JVM: Java Virtual Machine), JNI (Java Network Interface), ACAP API (Java TV, Havi UI, JMF, DAVIC, CA Interface), Conditional Access System (CAS) module or Digital Rights Management (DRM: Digital Rights Management interface module, API for IP media service (Navigator, Audio streaming API, VOD, Flash player, HDS Client, SSO Client), middleware layer with streaming protocol (RTP, RTSP), IPTV music channel An application that includes a client for music playback that supports a variety of multi codecs such as an electronic program guide (EPG), MPEG2, MPEG4, MPEG7, H.264, WMV-9, and other audio codecs. Including the design hierarchy.

The IP STB 310 may provide an ADSL / VDSL interface unit, a LAN interface unit, and a PVR (Personal Video Recorder) recording function connected to a control unit. Optionally, a WLAN interface unit, a Bluetooth communication interface unit, It may include at least one of the ZigBee interface unit, IEEE 1394 interface unit, UWB interface unit, or USB interface unit, connected to the home gateway (Home gateway) for use in conjunction with the Home Networking service (Home gateway) and the home server It can be used in conjunction with (Home Server).

The client for reproducing the sound source has a data buffer for streaming the sound source, and a web browser plug-in type client or a web browser for reproducing and outputting a sound source or a music video by the A / V codec; Use a client for music playback separately.

The graphical user interface (GUI) of the client for reproducing a sound source provides a function of adding / deleting / selecting a downloaded sound source to a playlist of a sound source, playing a sound source, and pausing a sound. Provides audio equalizing function by each channel, provides daily / genre ranking information preferred by many viewers, provides showcase information of past or current latest songs by genre, and enables users to search and listen to the music they want. Provide search function.

In addition, since the IP set-top box 310 connected to the digital TV provides a wireless LAN (WLAN) interface or a Bluetooth communication module interface, a personal portable terminal (PDA, Pocket-PC) or wireless LAN equipped with a wireless LAN card is provided. It is possible to transfer the music data or music video data downloaded in a P2P method with a laptop equipped with a card, and a mobile terminal equipped with a Bluetooth communication module or a portable music player (such as an MP3 player) equipped with a Bluetooth communication module. Piconet, which is a Bluetooth communication channel, is formed to transmit sound source data or music video data downloaded in the form of P2P (Peer to Peer) from the IP set-top box 310 in a master / slave communication method and used in a portable device.

Referring to FIG. 1, the IPTV headend system includes a baseband system 100, a compression multiplexing system 110, a reception restriction system 120, a back office system 130, a subscriber management system 140, a network switch system ( 150, a monitoring system 160, a media management system (MOC) 170, an EPG providing system 191, a data broadcasting system 192, and a return path server system 193.

The IPTV headend system includes music information through the subscriber aggregation device 220 and the subscriber switch 230 using a multicast routing protocol (eg, PIM-SM protocol) in a Gigabit or higher speed router of the premium network 200. Data broadcast data, PSI / SI information for music channels, and EPG information including music channels are transmitted to IP set-top boxes 310 of multiple subscribers by multicasting.

The baseband system 100 receives an MPEG-2 broadcast signal from an external program provider (PP), or an analog broadcast signal from terrestrial waves, and converts the received source broadcast signal into a SDI (Serial Digital Interface) signal. Synchronize frames, distribute broadcast video and audio signals from multiple broadcast channels (e.g. 100 channels) via routine switchers, subtitle generators (CG) and automatic program controllers (APC) By inserting at least one of an advertisement, a logo, or a subtitle to the broadcast video and audio signal (signal editing and processing) is transmitted to the compression multiplexing system 110.

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

The baseband system 100 is basically a tuner (Tuner) for receiving an analog broadcast signal to a broadcast signal such as a program provider (PP), terrestrial wave, such as DS-3 optical end station, Yagi antenna, Integrated Receiver Decoder (IRD), 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 a broadcast video and audio signal received from the baseband system 100 into an A / V encoder for each broadcast channel (for example, 100 channels) and inputs SDI (Serial). Digital Interface) compresses video signals to H.264, compresses audio signals to MPEG-2 AAC, generates MPEG-2 Transport Stream (TS), and compresses the data together with MPEG-2 TS, a compressed broadcast video and audio signal. Multiplexing data broadcasting data including music information generated by a data encoder and a PSI / SI generator, PSI information / SI information for a music channel, and EPG information including a music channel After that, the multiplexed MPEG-2 TS signal is IP packetized.

The network switch system 150 transmits the IP packetized transport stream to the premium network 200 through a gigabit leased line in an IP multicast manner.

Previously, when using the PIM-SM multicast routing protocol, the network switch system 150 transmits a register message as a first hop router (FHR) to a rendezvous point (RP) in response to the rendezvous point (RP). The registration process is performed at the rendezvous point RP, which receives the JOIN message from the network switch system 150 and sets a path.

The network switch system 150 may use IPv4 multicast or IPv6 multicast, and when using IPv4 multicasting, multiply the IP packetized transport stream (TS) based on an IPv4 Class D IP multicast address. Casting is transmitted through the premium network 200 to a plurality of subscriber stations (IP STBs) joined to a corresponding channel through a rendezvous point tree (RPT: multicast tree).

The network switch system 150 connects and connects one or more L3 switches (L3 SW), the return path server system, and the user terminal to multicast the IP packetized transport stream to an IP network. One or more L4 switches (L4 SW) for load balancing bidirectional data reception traffic in a unicast manner to an appropriate load, and one or more intrusion prevention systems for blocking harmful traffic between the L4 switch and the IP network. .

In addition, IP multicasting may use IPv4 multicast or IPv6 multicast technology. In one embodiment, if the router and the L3 switch use the PIM-SM Multicasting Routing Protocol, and the subscriber's IP set-top box uses an IPv4 address, the subscriber switch (L2 network equipment) 230 may be configured using IGMP v2 / v3. It transmits to the subscriber aggregation device 220 through IGMP Snooping to join the desired broadcast channel, or when using an IPv6 address, transmits to the subscriber aggregation device 220 using MLD v1 / v2 and joins to the corresponding broadcast channel.

In one embodiment, when the network switch system 150 uses IPv4 multicasting, IPv4 Class D multicast addresses are 224.0.0.0 to 239.255.255.255, which are different for each broadcast channel (eg, 100 channels). Use multicast addresses. 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.

Optionally, if you are using user authentication for the IPTV music portal service, you may not be able to view IPTV music service subscribers, pausers (unpaid IPTV service charges), or parental controls for teens over the age of 19, depending on their rating. The reception restriction system 120 may be used to prevent illegal viewing and illegal copying.

The conditional access system (CAS) 120 is a viewing authority control system of a viewer, and performs encryption of broadcast video and audio signals for a real-time channel and pre-encryption of VOD data. By providing a sound recording and music video content, only authorized users can be controlled.

The access control system 120 selectively provides viewing authority control and a function of controlling and allowing a service for a specific local subscriber or a specific group of subscribers to prevent illegal viewing and illegal mass duplication, and before the IP multiplexing, the scrambler ( Scrambling) scrambles broadcast video and audio signals or VOD content according to a control word (CW), which is a key value for scramble, and entitlement control message (ECM) including a control word (CW) and entitlement. Provides an Entitlement Management Message (EMM) to an IP Multiplexer. The scrambled broadcast video and audio signals provided from the compression multiplexing system 110, ECM and EMM information including CW transmitted from a CAS channel along with data broadcasting data, PSI / SI information are multiplexed by an IP multiplexer and networked. Through the switch system 150 is transmitted to the IP set-top box 310 of the subscriber joined to the music channel in a multicast manner.

The IP set-top box connected to the digital TV demultiplexes the received scrambled broadcast video and audio signals, data broadcast data, PSI / SI information, CW / ECM, and EMM information, and then through the EMM filter. Smart card based on the scrambled broadcast video and audio signal using the control word (CW) extracted through ECM Filter, after confirming whether the smart card is subscribed to the service of the smart card. After decoding, the A / V codec is decoded by the A / V codec and buffered in real time to output the decoded sound source or music video on the TV screen.

In the above embodiment, the conditional access system (CAS) 120 is used to prevent illegal copying of IPTV music and music video contents, but instead Digital Rights Management (DRM). By using this method, traffic waste caused by ECM and EMM transmission can be reduced.

For example, the compression multiplexing system 110 IP-multiplexes the DRM decryption key for the music data or music video VOD content to which the DRM is encrypted by the DRM server for the IPTV music portal service. Through the IP set-top box 310 of the subscriber through the transmission. In this case, the subscriber's IP set-top box 310 includes a DRM client.

The IP set-top box 310 of the subscriber receives the user ID from the subscriber management system 140 by receiving the ID and the passwd of the subscriber, and then the DRM server (DRM Server) by the DRM interface module (DRM Client) of the IP set-top box. The IPTV music portal service may be used by decrypting the received sound source or music video data by using the DRM decryption key transmitted from the.

In this case, the DRM decryption key cannot be used unless the user is authenticated.

In the case of using the DRM scheme, the subscriber's IP set-top box 310 does not need to use a CA and a smart card.

The music information system of the music CP has a DRM server that receives a certificate from a certification authority server (CA server) and processes a payment request / approval process to a payment server (PG server) in order to protect the copyright of digital contents such as new sound source and music video. Afterwards, a packager distributes the DRM-applied sound source and music video content generated by encrypting the sound source and the music video according to the encryption key and distributed to the music information system (music content service server) and the local node. Register and distribute music content to the server. Then, the certificate information, encryption key (key) and encryption information is registered with the license issuing server of the clearing house.

Packager encrypts digitally protected digital sound recording and music video contents and applies DRM including contents identification number (CID) and metadata information (copyright, seller information, price, etc.) according to digital content identification system. A process of packaging sound source or music video content into a secure container is performed.

The certification authority server (CA server) receives a certificate issuance request from a music information system or a DRM server, and issues a certificate for a sound source or music video content.

When the payment server (PG server) receives a payment request from the DRM client of the user terminal to the music information system or DRM server when purchasing a sound source or music video, the payment server (PG server) to the payment server according to the payment request information from the music information system or DRM server Provide payment function.

The license issuing server receives an encryption / decryption key and encryption information for a sound recording or a music video from a packager, and is based on a digital sound recording and music video content distribution policy and a license policy from the subscriber management system 140. By checking the subscriber's authority according to the license request from the DRM client of the IP set-top box, it issues a license and transmits metadata.

Further, in another embodiment, the DRM client of the IP set-top box is connected to the music information system 194, requests the user to download the package after authentication, and downloads it. Using the DRM decryption key sent from the DRM server by requesting a key, decrypt the DRM-applied sound recording and music video content including the content identification number (CID: Contents ID) and metadata (copyright, seller information, price, etc.). (decryption) to play or download selected music or music video content.

The back office system 130 is a provisioning system. When using the IPTV music portal service for a fee after user authentication, the back office system 130 provides a billing processing function for the use of the IPTV music service for each subscriber.

The subscriber management system 140 provides a member subscription and cancellation and member information management function for the IPTV music portal service.

The monitoring system 160 is a control system. The monitoring system 160 monitors a transmission failure of an A / V broadcast signal for IPTV broadcasting, a downlink of an IPTV headend system, and a reception failure and subtitle confirmation.

The media operation system (MOC) 170 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 170 manages broadcast program organization information, content and media management information, contract information of a program provider (PP) and a content provider (CP), product information, and manages each system in the center of a broadcasting center. It acts as a coordinator that integrates and manages information flow through organic integration.

 The media management system (MOC) 170 is contract management in terms of acquisition, media and content metadata management, EPG information acquisition / management, which is broadcast schedule information, and real time broadcasting in terms of operation. Marketing analysis reporting, delivery such as settlement of CP / CA and subscriber viewing inclination in terms of VoD channel formation management, agent management with each subsystem, VOD catalog creation management and various product analysis and analysis. ), Broadcast transmission monitoring, video server transmission management and VoD subscriber authentication, transmission result recording / management for settlement with CP / CA, and data synchronization with each subsystem.

The media management system (MOC) 170 receives a music video video music content (VOD data) from a delivery server (Pitcher) of a content provider (CP) through a service uploading server (Catcher) to receive a transaction server (distribution server) Through this, it transmits to COD server of many regional nodes distributed in several regions.

The COD server includes a VOD server 197 and a file server 198 as part of the music information system 194.

The service uploading server (Catcher server) of the media management system (MOC) 170 uses the file transfer protocol (FTP) from the delivery server (Pitcher) of the content provider (CP) related to the music AOD, VOD files (music and audio). Receives music content including a file, a music video) and updates it in real time, and transmits the music video video music content to a plurality of VOD servers 197 and file servers 198 by a transaction server.

The media management system (MOC) 170 notifies the music information system 194 of the transmission result of the music video video content, and updates the DB of the music information system 194 in real time.

The Data Manager (DM) of the Data Broadcasting System (DBS) 192 stores an Object Carousel (OC) including periodically updated music information received from a Data Agent (DA). Through the compression multiplexing system 110 and the network switch system 150, a plurality of IP set-top boxes 310 are joined to the corresponding channel in a multicast manner.

The personalization authentication server 199 receives an authentication request message for the IPTV music portal service from the subscriber's IP set-top box 310 through the return pass server system 193 and in response to the authentication request message, an authentication ticket. The ticket is transmitted to the IP set-top box 310 of the subscriber through the return pass server system 193, and the subscriber information on the issued ticket is transmitted to the data agent DA of the music information system 194. .

The music information system 194 receives a sound source or lyrics content request message from the subscriber's IP set-top box 310, and transmits the sound source data or lyrics data for the IPTV music portal service to the subscriber's IP set-top box 310. Send in cast.

The music content provider CP has a music information system 194.

The music information system 194 may include: a sound source server for providing sound source data of music genres to an IPTV music portal service according to a request from a user terminal; A music database for storing the sound source data; A lyrics database that stores lyrics data for the sound source; A content management server (CMS) for receiving subscriber information about a ticket issued from the personalization authentication server 199 to identify a music portal service subscriber and for managing the music content in connection with the sound source server; A music portal service data agent (DA) for updating music information and transmitting the music information to a data manager (DM) of the data broadcasting system (DBS); And a delivery server (Pitcher) of the music content provider (CP) for transmitting and updating the music content updated in real time to the media management system (MOC) 170.

The music information system 194 includes one or more Contents On Demand (COD) servers distributed to local nodes for providing music content for an IPTV music portal service to the user terminal.

Each COD server comprises: one or more file servers for providing music related files for IPTV music portal services; And one or more VOD servers and associated databases for providing video music content to the user terminal.

The COD server is disposed in one local node in a centralized manner or in a local node distributed in several regions in a distributed manner, and multicasts a music video video music content and a music file from the media management system (MOC) 170. It is characterized by receiving.

The IPTV music portal service is a service that allows the viewer to select and listen to the music desired by the AOD (Audio On Demand) concept, not an audio channel provided in one-way, and provides music information and sound source storage functions other than listening to music. It provides music video playback function related to sound source, gifting music through e-mail or mobile communication terminal.

The IPTV music portal service is a showcase that provides music by music genre and music by selecting the latest songs, music videos by the latest music genres, lunches ranking by day and genre, and lunchbox rankings that provide information about ongoing or past showcases. It provides a music search service that provides viewers with a search tool to find the music they want. The IPTV service system updates and stores the sound source data in real time from the music source provider (CP), displays the updated data on the screen until the music information service is executed, and provides the music information service to the viewers through the AOD (Audio On Demand) method. Provide the desired music content by selecting the menu provided through.

The media management system (MOC) 170 includes a service uploading server (Catcher) for receiving the newly updated music video music content from the delivery server (pitcher) of the sound source content provider (CP); A content database for storing the music content received through the service uploading server (Catcher); And a transaction server for distributing the music content stored in the content database by multicasting to a COD server of a local node of the music information system.

The music contents include music information (music name, song name, singer, etc.) by music genres such as songs, classics, pop songs, and cannes, multimedia data such as sound source data or music video video music contents.

The COD server system 197 receives the music content that is periodically updated from the media management system (MOC) 170 from the delivery server (Pitcher) of the music content provider (CP), the subscriber's IP set-top box 310 The music video video and the related music information is provided to the subscriber IP set-top box (310).

The EPG providing system 191 provides electronic program guide (EPG) information including a music channel to the user terminal.

The data broadcasting system 192 includes a data manager DM for authoring, verifying, organizing, and transmitting data broadcasting data including music information, and receiving music information that is periodically updated from a news content provider CP. The data broadcasting data including the music information is generated by the data server / data encoder, and the PSI / SI information on the music channel is generated by the PSI generator / SI generator.

The data broadcasting system (DBS) 192 is a data agent manager for managing data encoding, a PSI generator for generating program related information (PSI), and an SI generator for generating service information (SI). (SI Generator), Data Server / Data Encoder for encoding data broadcasting data including music information, Data broadcasting data including the music information and PSI / SI information of the music channel A multiplexer manager (MM) for managing multiplexing functions, and a scheduler user interface (Scheduler UI) are included.

The compression multiplexing system 110 is a music generated by a data server / data encoder, a PSI generator / SI generator by an authoring tool from the data broadcasting system (DBS) 192 according to the terrestrial ACAP data broadcasting standard. It is multiplexed by a multiplexer with data broadcasting data including information and PSI / SI information for the music channel and EPG information including the music channel.

The return pass server system 193 records service use start / end time and log information of the user terminal, processes bidirectional data by a data provider (DP), and subscribers IP set-top boxes. It provides an online bill transfer from the 310 to the IPTV music portal service, and the use history / billing interworking process of the two-way data, and transmits the two-way data and the corresponding response data to the IP set-top box 310 to the unicasting .

The TV 300 connected to the IP set-top box (STB) 310 may use music information, music genres, lyrics, music videos, etc. using a plug-in type web browser for playing music or a client for playing music. To the user.

The Electronic Program Guide for the IPTV music portal service provides the ability for viewers to search for the desired program, and the electronic program guide (Box List EPG, Text EPG, Mosaic EPG, Mini EPG, Navigator EPG) EPG) to serve.

The media management system (MOC) 170 receives a music video video music content provision request message including the location information of the IP set-top box of the subscriber selected by the user through the return pass server system 193, and receives the subscriber. The optimal COD server URL information of the nearest local node is transmitted to the IP set-top box 310 of the subscriber through the return path server system 193 based on the location information of the IP set-top box 310 of the IP.

The subscriber's IP set-top box 310 is connected to the optimal COD server URL of the received local node and the music video video music portal by unicasting from the corresponding COD server (VOD server 197 and file server 198). Receive content.

In addition, the subscriber's IP set-top box 310 may use a wire transfer, credit card payment or mobile phone payment, communication card total bill payment to pay a predetermined fee and download the selected sound data, music video content.

3A is a diagram for explaining a pitcher-catcher management system. Pitcher-Catcher (Pitcher-Catcher) system is built on a Data Provider (DP), Content Provider (CP), and transmits the content referring to the transmission schedule to the media management system (MOC) (170) A service uploading server which displays a transmission server system, a list of music contents and items uploaded and located in the media management system 170, uploads the transmitted contents to the NVOD gateway server, and uploads the NVOD operation schedule information to the NVOD gateway server. It consists of (Catcher). Pitcher vs. Catcher system configurations are either 1: 1 or N: 1.

The service uploading server (Catcher) is not necessarily limited to one, two or more may be provided.

Referring to FIG. 3A, two service uploading servers (Catcher) are connected with a MOC DB and a content database (NAS Storage), and a transaction server (distribution server) is connected with the content database.

The function of the delivery server (Pitcher) is to deliver a package from a plurality of content providers (CP) (transfer one package of the transmission schedule to each platform, monitor the package delivery status, display the package transmission results), NVOD schedule (transmission schedule) Transmission of the relevant date to the platform, monitoring the status of transmission of the ticket, display of the result of transmission of the ticket, search of the transmission result (search the transmission result and status of the package by the date of transmission, success, title, ID, etc.), system message output (system Message output, system error and status messages to the CMS), and digital rights management (DRM) for music content.

The service uploading server (Catcher) is a package arrival notification and NVOD server upload (notification when sending a package from the delivery server, NVOD server registration of the transmitted package, MPEG file NVOD server upload, upload of the transfer schedule), the package of the platform Applying DRM to music content such as list and status display, gateway server communication monitoring (indicate communication status with NVOD Gateway server), error monitoring (displaying for each error message, sending error message to CMS), sound source or music video It provides stability (encryption reception using Video Encryption Algorithm).

The transaction server (distribution server) updates music contents (music data, music video) to COD servers (VOD server and file server) of a plurality of local nodes registered in the media management system (MOC) 170. Deploy in a multicast fashion.

The transaction server (distribution server) manages state information on the VOD server for each local node, and adds or deletes a server to the VOD server management list according to the corresponding information when adding and deleting the VOD server.

In one embodiment, the plurality of COD servers (VOD server and file server) can be installed and used only in one local node, distributed to a plurality of subscriber concentrators 220 located in several regional nodes can be installed and operated. have.

Data broadcasting data including music information transmitted from the IPTV headend system, PSI / SI information for a music channel, and EPG information including a music channel are joined to a multicast group in the premium network 200. A number of joined IP set-top boxes are sent using the IP multicast protocol (eg PIM-SM).

IP multicast routing protocols used in routers and L3 switches of the premium network 200 include Distance Vector Multicast Routing Protocol (DVMRP), Multicast Extensions to OSPF (MOSPF), Core Based Tree (CBT), and Protocol Independent (PIM-SM). Multicast routing protocols of either Multicast-Sparse Mode) or Protocol Independent Multicast-Dense Mode (PIM-DM) may 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 aggregation device (L3 switch) 220 each use a PIM-SM multicast routing protocol, and use a subscriber terminal (IP STB) and a subscriber switch ( 230) uses IGMP and IGMP Snooping protocols, respectively.

The Internet Group Management Protocol (IGMP) is used between an IP set-top box terminal requesting broadcast channel selection / release and a Layer 3 network device (eg, subscriber aggregation device 220) that accepts the request.

The IGMP Snooping protocol is a Layer 2 located between an IP set-top box 310 terminal of a subscriber requesting broadcast channel selection / release and a Layer 3 network device (eg, subscriber aggregation device 220) that receives an IGMP Join / Leave message request. As a protocol driven by the equipment (eg subscriber switch 230), the Layer 2 equipment (subscriber switch 230) running the IGMP Snooping protocol is an IP set-top box terminal and a Layer 3 network equipment (subscriber concentrator: (DR: Designated Router)) recognizes the IGMP transmission and reception message, and transmits the channel information only to the IP set-top box 310 of the subscriber making a broadcast channel request.

Since the PIM-SM protocol is a known IP multicast routing technology (IETF RFC 2362), description thereof will be omitted.

The subscriber IP set-top box 310 is a data broadcasting data including the music information from the subscriber concentrator 220 providing a plurality of broadcast channels (eg, 100) according to the joined multicast group, and the music. Receive multicasting of EPG information including PSI / SI information and music channels for the channel.

The Rendezvous Point (RP) of the premium network 200 manages the PIM Join list and the PIM Prune list by a plurality of broadcast channels (for example, 100) because the broadcast channel is a multicast group. do.

3B is a diagram illustrating static join to reduce channel zapping time in a subscriber IP set-top box.

The static join method used to reduce channel zapping time in IPTV is the same as that of the upper L3 network equipment in router 3 (subscriber concentrator 220) as if the subscriber's IP set-top box 310 joined all groups (channels). Request a PIM Join to (Router 3, 2, 1) (Subscriber Concentrator, Ntopia Switch, Metro Switch, Router, and Rendezvous Point (RP)). As a result, the subscriber aggregation device (Router 3) 220 downloads the traffic of all broadcasting channels (eg, 100 channels). The subscriber concentrator (Router 3) 220 periodically sends PIM Join messages to the upper L3 network equipment (Ntopia switch, Metro switch, router and rendezvous point of view (RP)) to maintain all groups (all broadcast channels) continuously. To send). The cycle occurs within 128 seconds of the end of the group joining time to maintain the group (broadcast channel) continuously.

The subscriber's IP set-top box (STB) is always from the subscriber concentrator (router 3) 220 by attending the group (channel) at the routers (L3 network equipment) regardless of whether the actual group (broadcast channel) JOIN or not. Receives an IPTV broadcast channel.

In addition, if the subscriber set-top box (STB) leaves the group 1 (selected broadcast channel) (changes to another broadcast channel), even if the subscriber set-top box (STB) transmits an IGMP Leave message for group 1 withdrawal, the rendezvous point (RP) and routers 1,2,3 (Metro Switch, Ntopia Switch, Subscriber Concentrator) always maintain joins to all multicast groups (all broadcast channels) regardless of subscriber set-top box (STB) IGMP Leave messages. . Therefore, a large amount of broadcast channel traffic of all broadcast channels (eg, 100 channels) transmitted from the IPTV headend system will stably reach the subscriber aggregation device (Router 3) 220.

Since the subscriber concentrator 220 downloads the traffic of all broadcast channels (100 broadcast channels), the subscriber aggregation device 220 reduces the zapping time of the broadcast channel and requests IGMP Join from the IP set-top boxes 310 of a plurality of subscribers. Upon receiving the message, the data broadcasting data including the music information, the PSI information / SI information for the music channel, and the EPG information including the music channel are transmitted to the IP set-top box 310 of the subscriber.

The subscriber's IP set-top boxes 310 access and release the subscriber aggregation device 220 according to an IGMP Join / Leave message to select and release a broadcast channel for an IPTV music portal service.

The subscriber's IP set-top box 310 transmits an IGMP Join message to the subscriber concentrator 220 when the subscriber selects a broadcast channel, and changes the other broadcast channel from the current channel being watched by the subscriber. The IGMP Leave message is transmitted to the subscriber concentrator 220, and the IGMP Join message is transmitted to the changed other broadcast channel.

When the subscriber stops watching or when the subscriber changes the broadcast channel, the IP set-top box 310 of the subscriber transmits an IGMP Leave message for the previously viewed broadcast channel to the subscriber concentrator 220.

4 is a flowchart illustrating a method of transmitting music content in an IPTV service system according to an embodiment of the present invention.

The data broadcasting system (DBS) 192 receives music information updated through the data manager DM from the data agent DA of the music content provider CP (step S10).

The media management system (MOC) 170 receives a new music video video music content from a delivery server (Pitcher) of a music content provider (CP) by a service uploading server (Catcher) and stores it in a content database, and then transactions The multicasting is transmitted to a plurality of the COD servers distributed to several local nodes through a transaction server (step S11).

The media management system (MOC) notifies the data agent DA of the music information system of the music video moving picture content of the music content provider CP to each COD server distributed in various local nodes (step S12). .

The data broadcasting system (DBS) 192 receives music information related to music video moving image content (step S13).

The data broadcasting system (DBS) 192 generates data for data broadcasting including music information by a data server / data encoder (step S14), and the PSI generator / SI generator of the data broadcasting system (DBS) 192. Generates PSI information / SI information for the music channel (step S15).

The EPG providing system 191 generates EPG information including a music channel (step S16).

The compression multiplexing system 110 multiplexes the data broadcasting data including the music information, the PSI / SI information for the music channel, and the EPG information including the music channel, and then IP packetizes the multiplexed stream ( Step S17).

The network switch system 150 transmits the received IP packetized transport stream to the plurality of subscriber IP set-top boxes 310 in a multicast manner through the IP network (step S18).

The personalization authentication server 199 receives an authentication request message including the location information of the STB for using the IPTV music portal service from the subscriber's IP set-top box 310 through the return pass server system 193 (step S19). ), And confirms the ticket authentication of the member of the IPTV music portal service (step S20) and transmits the authentication ticket to the IP set-top box 310 of the subscriber through the return pass server system 193 (step S21).

The location information of the user terminal includes a set-top box ID (SAID) and subscriber information (member name, address, social security number, email address, telephone number, etc.) or IP address.

When the client for playing a sound source of a TV connected to the subscriber IP set-top box 310 transmits a sound source or lyrics data request message to a sound source information system 194 having a sound source server, a sound source DB, and a lyrics DB, the sound source information system ( 194), the corresponding sound source or lyrics data is received (step S22).

The media management system (MOC) 170 receives a music video video content providing request message including the location information of the IP set-top box (STB) of the subscriber through the return pass server system 193 from the user terminal, Based on the location information of the subscriber's IP set-top box (STB), the URL information of the optimal COD server of the nearest local node is transmitted to the subscriber's IP set-top box 310 through the return path server system 193 ( Step S23).

Receives a music video video music content provision request message from the IP set-top box 310 of the subscriber to the optimal COD server of the corresponding local node, the COD server (VOD server and file server) corresponding to the music video video music The content is transmitted to the IP set-top box 310 of the subscriber in a unicast manner (step S24).

The IPTV music portal service manages subscription and termination, membership information, and handles the billing for the use of the IPTV music portal service by member on a monthly basis.

5 is a flowchart illustrating a method of receiving music content in an IP set-top box of a subscriber according to an embodiment of the present invention.

Previously, the TV 300 connected to the subscriber's IP set-top box 310 transmits the IPTV music portal service subscription information to the IPTV service system to join the member (step S30).

The TV connected to the subscriber's IP set-top box receives data broadcasting data including music information transmitted from the IPTV service system as a music channel, and EPG information including music channel and PSI / SI information for the music channel (step) S31).

The IPTV service system transmits an object carousel (OC) related to music information updated in real time from the data broadcasting system (DBS) 192 to the IP set-top box 310 of a plurality of subscribers through the data manager DM.

When the TV connected to the subscriber's IP set-top box is selected by the user using the electronic program guide (EPG), the music portal menu is transmitted, the authentication request message for using the IPTV music portal service is transmitted to the personalization authentication server 199. (Step S32).

When the TV 300 connected to the subscriber IP set-top box 310 is authenticated by the user from the personalization authentication server 199 of the IPTV service system (step S33), the return path server system (from the personalization authentication server 199) 193, an authentication ticket is received (step S34).

After the client for reproducing the sound source of the user terminal transmits a sound source or lyrics data request message to the music information system 194 having a sound source server, a sound source DB, and a lyrics DB, the sound source or lyrics requested from the music information system 194. The data is received (step S35).

The TV 300 connected to the subscriber's IP set-top box 310 sends a music video video music content provision request message including location information of the subscriber's IP set-top box (STB) to the media management system (MOC) 170. Transmit (step S36).

Location information of the subscriber IP set-top box in which the TV 300 connected to the subscriber IP set-top box 310 stores music contents from the media management system (MOC) 170 through the return pass server system 193. The best COD server URL information of the nearest local node is received based on (step S37).

The client for playing the sound source connects to the COD server and receives the music video moving picture music content in a unicast manner (step S38).

Clients for music playback of the TV 300 connected to the subscriber IP set-top box 310 is a day / genre by the day / music genre (song, clinic, pop song, Cansoné, etc.) on the IPTV music portal service screen by day / genre Ranking information and show case information are provided, and a music search function is provided using a sound source search window (step S39).

The client for reproducing the sound source of the subscriber IP set-top box 310 queries the sound source server with the sound source DB of the music information system 194 using the sound source search window or the sound source search tool, and the sound source server queries the sound source DB. Search for and transmit the corresponding sound source search result information to the client for playing the sound source of the subscriber IP set-top box 310.

In addition, the user may receive the selected sound source data and music video moving image music content and scrap and store it on My Page.

The user may transmit a music content to a phone number or an e-mail of a mobile communication terminal using a function of presenting a sound source or a music video received after paying a predetermined fee on the IPTV.

When the user clicks the end button of the IPTV music portal service (step S40), the user moves to the initial IPTV home portal screen (step S41).

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.

As described above, the IPTV music portal service system according to the present invention and a method for transmitting / receiving the same are based on a terrestrial Advanced Common Application Platform (ACAP) standard. Provides IPTV music portal service to TV connected to (STB) to distribute latest music and music videos by music genre to COD servers distributed to local nodes through feature-catcher system, and selects music by music genre and latest music Listening to music, listening to music videos such as the latest songs by music genre, bento rankings that provide music ranking information by day and genre, providing ongoing or past showcase information, and providing viewers with a music search service using a music search tool. Select the menu and select the desired music by AOD (Audio On Demand) This has the effect of watching.

Claims (30)

As an IPTV music portal service system, A data broadcasting system having a data manager (DM) for receiving periodically updated music information from a music content provider, and for generating data broadcasting data including the received music information; A PSI / SI providing system for providing PSI / SI information on a music channel to a user terminal; A plurality of COD servers storing video music contents and providing the same to a user terminal; A media management system (MOC) for receiving video music contents provided from a music content provider and transmitting the received video music contents to the plurality of COD servers; A multiplexing system for multiplexing data broadcasting data including the music information and PSI / SI information for the music channel, and outputting the multiplexed stream by IP packetizing; A network switch system for transmitting the IP packetized transport stream received from the multiplexing system to a user terminal in a multicast manner through an IP network; And A return path (RP) server system connected to the user terminal through the IP network via a return channel and receiving bidirectional data from the user terminal in an unicast manner for an interactive IPTV music portal service; IPTV music portal service system comprising a. As an IPTV music portal service system, A baseband system for frame synchronization of a broadcast signal received from a program provider (PP) or terrestrial wave, and for distributing broadcast signals for each channel to output broadcast video and audio signals; A data broadcasting system having a data manager (DM) for receiving periodically updated music information from a music content provider, and for generating data broadcasting data including the received music information; A PSI / SI providing system for providing PSI / SI information on a music channel to a user terminal; An EPG providing system for providing electronic program guide (EPG) information including a music channel to the user terminal; A plurality of COD servers storing video music contents and providing the same to a user terminal; A media management system (MOC) for receiving video music contents provided from a music content provider and transmitting the received video music contents to the plurality of COD servers; A compression multiplexing system for multiplexing data broadcast data including the music information, PSI / SI information for the music channel, and EPG information including the music channel, and outputting the multiplexed stream by IP packetizing; A network switch system for transmitting the IP packetized transport stream received from the compression multiplexing system to a user terminal in a multicast manner through an IP network; And A return path server system connected to the user terminal through the IP network via a return channel and receiving bidirectional data from the user terminal in an unicast manner for an interactive IPTV music portal service; IPTV music portal service system comprising a. The method according to claim 1 or 2, Receiving an authentication request message for the IPTV music portal service from the user's terminal through the return pass server system, and in response to the authentication request message, an authentication ticket to the user terminal through the return pass server system. IPTV music portal service system further comprising a personalization authentication server for transmission. The method according to claim 1 or 2, The music content provider (CP) has a music information system, The music information system, A sound source server for providing sound source data to the user terminal; A music database for storing sound source data for the IPTV music portal service; A lyrics database that stores lyrics data for the sound source; A content management server (CMS) for receiving subscriber information on a ticket issued from a personalization authentication server to identify a subscriber using an IPTV music portal service, and managing the music content in connection with the sound source server; A music service data agent (DA) which periodically updates text data and image data of music contents and transmits the same to the data manager DM of the data broadcasting system DBS; And A transmission server (Pitcher) for transmitting and updating the moving picture music content of the music content to the media management system (MOC); IPTV music portal service system comprising a. The method according to claim 1 or 2, The COD server, One or more file servers for providing music related files; And An IPTV music portal service system comprising one or more VOD databases and a VOD server for providing moving picture music contents to the user terminal. The method according to claim 1 or 2, The COD server is disposed at local nodes distributed in several regions, respectively, and the IPTV music portal service system, characterized in that the video music contents are transmitted from the media management system (MOC) in a multicast manner. The method according to claim 1 or 2, The media management system (MOC), A service uploading server (Catcher) for receiving video music content provided from the sound source content provider; A content database for storing the moving picture music content received through the service uploading server; And An IPTV music portal service system further comprising a transaction server for distributing music contents stored in the content database in a multicast manner to a plurality of COD servers distributed in various regions. The method according to claim 1, The multiplexing system, And multiplexing data broadcasting data including the music information and PSI / SI information of the music channel according to an ACAP (Advanced Common Application Platform) data broadcasting standard. The method according to claim 1, The multiplexing system, And an IP packetized transport stream for generating data broadcast data including the music information, PSI / SI information for the music channel, and EPG information including the music channel. The method according to claim 2, The compression multiplexing system, IPTV music portal characterized by multiplexing the streamed broadcast video and audio signal, data broadcasting data including the music information, and PSI / SI information for the music channel according to the Advanced Common Application Platform (ACAP) data broadcasting standard. Service system. The method according to claim 2, The compression multiplexing system, Generating an IP packetized transport stream of streamed broadcast video and audio signals, data broadcasting data including the music information, PSI / SI information for the music channel, and EPG information including the music channel. IPTV music portal service system. The method according to claim 1 or 2, The IPTV music portal service system further comprising a subscriber management system for subscription and termination, the member information management for the IPTV music portal service. The method according to claim 1 or 2, An IPTV music portal service system further comprising a back office system for processing billing for use of the IPTV music portal service for each subscriber. The method according to claim 1 or 2, The user terminal, An IPTV music portal service system comprising 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 according to claim 1 or 2, The user terminal, CPU, media processor, flash RAM, hardware layer of Ethernet module, system software layer including device drivers and operating system, Java Virtual Machine (JVM), JNI, ACAP API, middleware layer with streaming protocol, IPTV An electronic program guide (EPG) for selecting a service channel, an application layer including a client for music playback that supports various multi-codecs, ADSL / VDSL interface and LAN interface, and optionally WLAN interface, Bluetooth An IPTV music portal service system, which may include at least one or more of a communication interface, a ZigBee interface, an IEEE 1394 interface, a UWB interface, or a USB interface, and may be used in connection with a home gateway. The method according to claim 15, The multi codec, An IPTV music portal service system comprising an MPEG2, an MPEG4, an MPEG7, an H.264, a WMV-9 codec or a codec for reproducing a sound source. The method according to claim 1 or 2, The L3 network equipment used for the IP network uses a Protocol Independent Multicast-Sparse Mode (PIM-SM) multicast routing protocol, and the user terminal uses an IGMP Join / Leave message to select / release a broadcast channel. L2 network equipment of the subscriber network connecting the network and the user terminal uses the IGMP Snooping protocol to recognize the IGMP Join / Leave transmission and reception messages of the terminal of the subscriber making a channel request. A method of transmitting music content in an IPTV music portal service system, (a) receiving, by the data broadcasting system DBS, the music information updated through the data manager DM from the data agent DA of the music content provider; (b) the media management system (MOC) receiving moving picture music content from a music content provider; (c) the media management system transmitting the moving picture music contents provided in the step (b) to each COD server in a multicast manner; (d) the media management system notifying the music content provider's data agent (DA) of the fact that the moving picture music content is transmitted to each COD server to the music content provider; (e) receiving, by the data broadcasting system, music information related to the moving picture music content; (f) generating, by the data broadcasting system, data for data broadcasting including music information transmitted in (a) and (e); (g) the PSI / SI providing system generating PSI / SI information for the music channel; (h) the multiplexing system multiplexes the data broadcasting data including the music information with PSI / SI information for the music channel, and then IP packetizes the multiplexed stream; (i) the network switch system transmitting the received IP packetized transport stream to the plurality of user terminals in a multicast manner via the IP network; And (j) upon receiving a video music content providing request message including location information of the user terminal from the user terminal through the return pass server system, providing the corresponding music video video music content to the user terminal in a unicast manner. step; Method of transmitting the music content in the IPTV music portal service system comprising a. The method according to claim 18, Receiving, from the user terminal, an authentication request message including location information of the user terminal for using the IPTV music portal service to the personalization authentication server through the return pass server system; And The personalization authentication server confirms whether to subscribe to the IPTV music portal service, transmits an authentication ticket to the user terminal through the return pass server system, and transmits subscriber information on the issued ticket to the music information system of the music content provider. And transmitting the music content in the IPTV music portal service system. The method according to claim 18, Location information of the user terminal, A method for transmitting music content in an IPTV music portal service system comprising a set-top box ID (SAID) and subscriber information. The method according to claim 18, Step (c) is, (c-1) the media management system (MOC) receiving new video music content from a music content provider (CP); And (c-2) transmitting the received video music contents to a plurality of COD servers distributed to various local nodes by multicasting through a transaction server; Method for transmitting music content in the IPTV music portal service system further comprising. The method according to claim 18, Step (j) is, (j-1) When the media management system receives the video music content provision request message including the location information of the user terminal, the media management system (MOC) determines the closest optimal COD server based on the location information of the user terminal. Transmitting the URL information of the to the user terminal through the return path server system; And (j-2) the COD server receiving a provision request message for the selected video music content from the user terminal and providing the corresponding video music content to the user terminal; How to transmit the music content in the IPTV music portal service system comprising a. The method according to claim 18, Transmitting a sound source or lyrics data request message from a client for playing a sound source of the user terminal to a music information system having a sound source server and a lyrics DB of the music content provider; And And providing the corresponding sound source or lyrics data from the music information system to the client for playing the sound source of the user terminal. The method according to claim 18, And a subscriber management step of managing subscription and termination for the IPTV music portal service and member information. The method according to claim 18, And processing the charge for using the IPTV music portal service for each subscriber. A method of transmitting music content in an IPTV music portal service system, (a) the baseband system frame-synchronizing a broadcast signal received from a program provider (PP) or terrestrial wave, and distributing broadcast signals for each channel to output broadcast video and audio signals; (b) the data broadcasting system DBS receiving music information updated through the data manager DM from the data agent DA of the music content provider; (c) the media management system (MOC) receiving video music content from a music content provider; (d) the media management system transmitting the moving picture music content provided in step (b) to each COD server in a multicast manner; (e) the media management system notifying the music content provider of the fact that the moving picture music content is transmitted to each COD server; (f) the data broadcasting system receiving music information related to the moving picture music content; (g) generating, by the data broadcasting system, data for broadcasting data including the music information transmitted in (a) and (e); (h) the PSI / SI providing system generating PSI / SI information for the music channel; (i) the EPG providing system generating electronic program guide (EPG) information including a music channel; (j) after the compression multiplexing system multiplexes the broadcast video and audio signal, data broadcasting data including the music information, PSI / SI information for the music channel, and EPG information including the music channel, and then multiplexes IP packetizing the stream; (k) the network switch system transmitting the received IP packetized transport stream to the plurality of user terminals in a multicast manner via the IP network; And (l) when the music content providing request message is received from the user terminal to the COD server of the local node, providing the corresponding music content to the user terminal in a unicast manner; Method of transmitting the music content in the IPTV music portal service system comprising a. A method of receiving music content in an IPTV music portal service system, (a) receiving, by the user terminal, EPG information including a music channel transmitted from the IPTV service system; (b) receiving data broadcasting data including music information to the user terminal; (c) transmitting a sound source or lyrics request message selected by the client for sound source reproduction of the user terminal to the music information system of the music content provider, and receiving the corresponding sound source or lyrics data to the sound source reproduction client of the user terminal; (d) transmitting a video music content provision request message including location information of the user terminal to a media management system (MOC); (e) receiving URL information of a COD server of a local node storing music content from the media management system through a return pass server system; And (f) a client for playing a sound source connected to the COD server to receive video music contents by streaming; How to receive music content in the IPTV music portal service system comprising a. The method of claim 27, (g1) if a music portal menu is selected using an electronic program guide (EPG), transmitting an authentication request message for using the IPTV music portal service to a personalization authentication server; And (g2) receiving an authentication ticket from the personalization authentication server through the return pass server system; The method of receiving music content in the IPTV music portal service system further comprising. The method of claim 27, and (k) providing daily, genre ranking information, and show case information on the IPTV music portal service screen, and providing a music search function. In a subscriber's IP set-top box or mobile terminal connected to a computer or TV, (a) a function of receiving, by a user terminal, EPG information including a music channel transmitted from an IPTV service system; (b) receiving data broadcasting data including music information to the user terminal; (c) transmitting a sound source or lyrics request message selected by the client for sound source reproduction of the user terminal to a music information system of a music content provider, and receiving the corresponding sound source or lyrics data to the client for sound source reproduction of the user terminal; (d) transmitting a video music content providing request message including location information of a user terminal to a media management system (MOC); (e) a function for receiving URL information of a COD server of a local node storing music content from the media management system via a return pass server system; And (f) a function for the client for reproducing a sound source to access the COD server to receive video music contents by streaming; A recording medium readable by an IP set-top box or a portable terminal of a subscriber connected to a computer or a TV on which a program for realizing the program is realized.

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