KR20090003978A - Method and system for providing iptv messenger service - Google Patents

Abstract

An IPTV messenger service providing method and a system thereof capable of receiving the messenger service on IPTV are provided to use the messenger service while watching broadcast on an IPTV terminal by performing simple operation of a remote controller. A data broadcast system(235) generates portal screen data including information about an IPTV(Internet Protocol Television) messenger service. A Return path server system(220) is connected to the IPTV terminal through the IPTV network and return channel. The Return path server system receives bidirectional data in the IPTV terminal and uni-casting mode for providing an interactive IPTV messenger service. A personalization certificate server(225) receives an authentication request message for the IPTV messenger service from the IPTV terminal using the IPTV network through the return path server system. A UK(Unique Key) is produced a response about the authentication request message. A messenger main system(100) manages the performance of the provided IPTV messenger service between the IPTV messenger service subscribers.

Description

ITP messenger service providing method and system {METHOD AND SYSTEM FOR PROVIDING IPTV MESSENGER SERVICE}

1 is a diagram illustrating an IPTV network configuration for implementing an IPTV messenger service according to the present invention.

2 is a diagram illustrating the configuration of an IPTV head-end system.

3 is a diagram showing the configuration of an IPTV messenger service system according to the present invention;

4 is a diagram illustrating a structure of an IPTV communication client operated in an IPTV terminal for implementing an IPTV messenger service according to the present invention.

5 is a diagram illustrating an authentication process when using an IPTV messenger service according to the present invention.

6 is a diagram illustrating a process in which a user who logs in to an IPTV messenger service according to the present invention informs another user who registers the user as a buddy that the user is logged in.

7 is a diagram illustrating a process of requesting a buddy list and selecting a specific buddy from the buddy list for using the IPTV messenger service according to the present invention.

8 is a view showing a process of performing a one-to-one conversation service in an IPTV messenger service according to the present invention.

9 is a diagram illustrating a message service process in an IPTV messenger service according to the present invention;

10 is a view showing a process of inquiring a message list and a message body received in the IPTV messenger service according to the present invention.

11 is a view illustrating a process of performing a TV viewing service in an IPTV messenger service according to the present invention;

12 illustrates an embodiment of a screen for selecting an IPTV messenger service according to the present invention.

FIG. 13 illustrates an embodiment of a screen for selecting a service included in an IPTV messenger service according to the present invention; FIG.

14 is a view showing an embodiment of a one-to-one chat service screen among services included in an IPTV messenger service according to the present invention;

FIG. 15 is a diagram illustrating an embodiment of a message service screen among services included in an IPTV messenger service according to the present invention; FIG.

16 illustrates an embodiment of a portal screen that can use various services provided by an IPTV system.

The present invention relates to a method and system for providing an IPTV messenger service, and more particularly, to an IPTV messenger service providing method and system for allowing an IPTV viewer to receive a messenger service on an IPTV.

In the past, messenger services were available only on PCs. The service provided by the TV and the PC is separated.If the person who used the PC wants to watch the TV, he or she must stop using the PC and move to the TV to watch the TV. I had to change the location, boot up the PC, bring up the messenger screen, and use messenger. This was very cumbersome for modern people who wanted to enjoy a variety of complex functions as a device.

The present invention was devised to solve the above problems, and by watching a general broadcast using an IPTV terminal including an IPTV set-top box connected to an IPTV network, and by simply operating a remote control, such as by turning a channel, on the IPTV terminal An object of the present invention is to provide a method and a system for providing an IPTV messenger service, which allow a messenger service to be used.

In order to achieve the above object, an IPTV messenger service system that provides a messenger service (hereinafter referred to as an IPTV messenger service) to an IPTV terminal according to the present invention includes portal screen data including information on an IPTV messenger service. A data broadcasting system for generating; A return path server system connected to the IPTV terminal through a IPTV network through a return channel and transmitting and receiving bidirectional data with the IPTV terminal in a unicasting manner to provide an interactive IPTV messenger service; Receiving an authentication request message for the IPTV messenger service from the IPTV terminal using an IPTV network through the return pass server system, and generating an authentication key (Unique Key, UK) in response to the authentication request message, the return pass server Personalization authentication server for transmitting to the IPTV terminal through a system; And a messenger main system that is in charge of performing an IPTV messenger service provided between subscribers of the IPTV messenger service.

The IPTV messenger service system may include: a multiplexing system for multiplexing portal screen data and program specific information (PSI) received from the data broadcasting system, and outputting the multiplexed stream by IP packetizing; And a network switch system for transmitting the IP packetized signal received from the multiplexing system to the IPTV terminal through the IPTV network in a multicasting manner.

The messenger main system may include a buddy server in charge of adding, deleting, or changing a messenger group and a buddy; A connection front end server for establishing and maintaining a connection session with the IPTV terminal through an IPTV messenger client (hereinafter referred to as a client) in the IPTV terminal; A presence server, which is connected to the access frontend server, processes a login and a logout of an IPTV messenger service subscriber and manages connection status information accordingly; An authentication server that performs authentication of the IPTV terminal or an individual of an IPTV messenger service subscriber in accordance with information received from a client; A subscriber information database server managing subscriber information of the IPTV messenger service; And a chat server managing a chat session while providing a one-to-one chat service provided by the IPTV messenger service system.

The messenger main system may further include a broadcasting server responsible for a common notification function for a message to be announced to all users of the IPTV messenger service system.

The messenger main system may further include a message server that manages receipt, transmission, and storage of notes sent and received between users.

The messenger main system may further include a connection distribution server that manages connection location information of the IPTV terminal and designates a connection front end server to be connected when the IPTV terminal requests a connection.

The messenger main system may further include a presence database that stores client information and buddy information that is connected.

The messenger main system may further include a notification server, which is connected to the access frontend server and transmits a status notification message including a login, logout, and away of a subscriber of an IPTV messenger service to a client of the other party's IPTV terminal. have.

The IPTV terminal may include a TV with an IP set-top box, an IP set-top box connected to a TV of a service user, a computer, a notebook, and a personal portable terminal.

According to another aspect of the present invention, a method in which an IPTV messenger service system provides a one-to-one conversation service among messenger services (hereinafter referred to as an IPTV messenger service) using IPTV includes (a) an IPTV messenger service subscriber (hereinafter referred to as a subscriber). When the terminal authentication request is received from the IPTV terminal through the IPTV network, performing terminal authentication; (b) performing personal authentication upon receiving a request for authentication of a user of the IPTV messenger service from the subscriber's IPTV terminal; (c) providing buddy information to the IPTV terminal when the subscriber requests a buddy information from the IPTV terminal; (d) If a specific buddy is selected from the subscriber and a one-to-one chat service is selected from among the IPTV messenger services, and the server receives the connection server information for creating a chat room from the IPTV terminal, the chat server information of the IPTV messenger service system to be accessed is recalled. Providing to the subscriber's IPTV terminal; (e) When the chat server receives a chat room creation request from the subscriber IPTV terminal, if there is a chat room previously created between the subscriber and the buddy, the existing chat room information is transmitted to the subscriber's IPTV terminal. Creating a new chat room and transmitting the chat room information to the subscriber's IPTV terminal when there is no chat room created in the mobile terminal; (f) When the buddy terminal receives a chat room invitation message sent from the subscriber's IPTV terminal by newly creating a chat room, the chat server receives a chat room invitation acceptance message sent from the buddy terminal in response thereto. Sending, by the server, a chat room participation result message to the buddy terminal and the subscriber IPTV terminal; (g) exchanging a message between the subscriber IPTV terminal and the buddy terminal in the chat room.

After the step (g), (h) if the message sending service is selected with the selection of the other party (buddy, buddy) to send a message from the subscriber, proceed to step (i), the received message list inquiry service or reception Proceeding to step (k) if the text inquiry service for the selected specific message is selected; (i) when a message to be sent to the buddy is input to the buddy, receiving and storing the message, inquiring the connection status of the selected buddy terminal, and informing the buddy terminal that the message has been received when connected; (j) if the message reading request is received from the selected buddy terminal, transmitting the message contents to the buddy terminal; (k) if the message list inquiry service received from the subscriber or the text inquiry service for the specific note received is selected, the subscriber provides the subscriber with the body of the received message list or the specific note received according to the subscriber's selection; It may further comprise a.

According to another aspect of the present invention, a method in which the IPTV messenger service system provides a TV-like viewing service among messenger services (hereinafter referred to as IPTV messenger services) using IPTV includes: (a) IPTV messenger service subscribers (hereinafter referred to as IPTV messenger service); Performing terminal authentication when the terminal authentication request is received from the IPTV terminal of the subscriber through the IPTV network; (b) performing personal authentication upon receiving a request for authentication of a user of the IPTV messenger service from the subscriber's IPTV terminal; (c) providing buddy information to the IPTV terminal when the subscriber requests a buddy information from the IPTV terminal; (d) When a buddy is selected from the subscriber and a viewing service such as a TV that enables viewing of the same channel as the selected buddy is selected, receiving a viewing service request like a TV from the IPTV terminal receiving the selection. step; (e) transmitting a viewing request together with the TV to the selected buddy terminal.

After the step (e), (f) with the selection of the other party (buddy, buddy) to send a message from the subscriber, if the message sending service is selected, proceed to step (g), the received message list inquiry service or reception Proceeding to step (i) if the text inquiry service for the selected specific message is selected; (g) if a message to be sent to the buddy is inputted, receiving and storing the message, inquiring the connection status of the selected buddy terminal and notifying the buddy terminal of the received message if the message is being accessed; (h) if a message reading request is received from the selected buddy terminal, transmitting the message contents to the buddy terminal; (i) if a message list inquiry service received from the subscriber or a text inquiry service for a specific note received is selected, the subscriber provides the subscriber with the body of the received message list or the specific note received according to the subscriber's selection; It may further comprise a.

In the method of the IPTV messenger service system to provide a one-to-one conversation service of the IPTV messenger service or a TV-like viewing service, the terminal authentication request from the IPTV terminal in the step (a) is, It is preferably performed at boot time.

In the method of the IPTV messenger service system to provide a one-to-one conversation service or the TV-like viewing service of the IPTV messenger service, the terminal authentication of the step (a) is (a1) Personalization authentication of the IPTV messenger service system When the server receives a terminal authentication request message containing the ID (SAID) of the terminal from the IPTV terminal, generating a terminal authentication key corresponding to the SAID and transmitting to the IPTV terminal; (a2) when the messenger main system of the IPTV messenger service system receives an authentication request including the SAID and the terminal authentication key from the IPTV terminal, performing authentication and transmitting a result to the IPTV terminal; (a3) when the messenger main system of the IPTV messenger service system receives a login request from the IPTV terminal, performing a login and transmitting a result to the IPTV terminal.

In the method of the IPTV messenger service system to provide a one-to-one conversation service among the IPTV messenger services, or the method of providing a viewing service like a TV, the personal authentication of step (b) is (b1) Personalization authentication of the IPTV messenger service system. When the server receives from the IPTV terminal a personal authentication request message including the ID (SAID) of the terminal and a personal identification number (PIN) input from the subscriber, a personal authentication key corresponding to the SAID and PIN. Generating and transmitting to the IPTV terminal; (b2) when the messenger main system of the IPTV messenger service system receives an authentication request including the SAID and the personal authentication key from the IPTV terminal, performing authentication and transmitting a result to the IPTV terminal; (b3) when the messenger main system of the IPTV messenger service system receives a login request from the IPTV terminal, performing a login and transmitting a result to the IPTV terminal.

Preferably, the authentication request received in step (b2) includes an ID and password input from the subscriber.

According to another aspect of the present invention, an IPTV terminal is connected with an IPTV messenger service system through an IPTV network by an IPTV communication client program (hereinafter, referred to as an "IPTV communication client") performed inside the terminal, thereby providing an IPTV service subscriber. A method of providing a one-to-one conversation service among messenger services (hereinafter, referred to as IPTV messenger services) using IPTV, comprising: (a) requesting an IPTV messenger service system to authenticate an IPTV terminal, and performing terminal authentication; (b) in the portal screen provided by the IPTV messenger service system, upon receiving the IPTV messenger service from the subscriber, requesting the IPTV messenger service system to authenticate the individual subscriber, and performing personal authentication; (c) requesting buddy information from the IPTV messenger service system when there is a buddy information request of the subscriber, and displaying buddy information in response to the buddy information on the IPTV terminal screen; (d) if a specific buddy is selected from the subscriber and a one-to-one chat service is selected from among the IPTV messenger services, requesting the IPTV messenger service system to access chat server information to create a chat room; (e) when receiving chat server information of the IPTV messenger service system to be connected from the IPTV messenger service system, sending a chat room creation request to the chat server; (f) if the chat room information generated from the IPTV messenger service system is received, in the case of a newly created chat room, transmitting a chat room invitation message to the selected buddy terminal; (g) if the buddy terminal accepts the invitation, transmitting and receiving a chat message with the buddy terminal.

After the step (g), (h) if the message sending service is selected with the selection of the other party (buddy, buddy) to send a message from the subscriber, proceed to step (i), the received message list inquiry service or reception Proceeding to step (k) if the text inquiry service for the selected specific message is selected; (i) providing a message window for message input; (j) if a message to be sent to the buddy is sent from the subscriber to the buddy through the message window, sending it to the IPTV messenger service system; (k) if the message list inquiry service received from the subscriber or the text inquiry service for the specific message received is selected, sending the inquiry request to the IPTV messenger service system; (l) in response to the inquiry request sent in step (l), if the message list or the body of the received specific message is received from the IPTV messenger service system, displaying the message on the screen of the IPTV terminal; Can be.

According to another aspect of the present invention, an IPTV terminal is connected with an IPTV messenger service system through an IPTV network by an IPTV communication client program (hereinafter, referred to as an "IPTV communication client") performed inside the terminal, thereby providing an IPTV service subscriber. Among the messenger service using IPTV (hereinafter referred to as IPTV messenger service), a method of providing a TV viewing service (hereinafter referred to as a TV-like viewing service) of the same channel as the selected buddy is provided by (a) an IPTV messenger service system. Requesting authentication of the IPTV terminal from the terminal, performing terminal authentication; (b) in the portal screen provided by the IPTV messenger service system, when receiving a request for an IPTV messenger service from a subscriber, requesting authentication of the individual subscriber to the IPTV messenger service system to perform personal authentication; (c) requesting buddy information from the IPTV messenger service system when there is a buddy information request of the subscriber, and displaying buddy information in response to the buddy information on the IPTV terminal screen; (d) requesting the IPTV messenger service system to send a TV viewing request for the same channel to the buddy when a specific buddy is selected from the subscriber and a TV-like viewing service is selected among IPTV messenger services; (e) receiving a result of accepting the buddy from the IPTV messenger service system.

After the step (e), (f) with the selection of the other party (buddy, buddy) to send a message from the subscriber, if the message sending service is selected, proceed to step (g), the received message list inquiry service or reception Proceeding to step (i) if the text inquiry service for the selected specific message is selected; (g) providing a message window for message input; (h) if a message to be sent to the buddy is sent from the subscriber to the buddy through the message window, sending it to the IPTV messenger service system; (i) if a message list inquiry service received from the subscriber or a text inquiry service for a specific note received is selected, sending the inquiry request to the IPTV messenger service system; (j) in response to the inquiry request sent in step (j), displaying a message list or a body of the received specific message from the IPTV messenger service system, and displaying the message on the screen of the IPTV terminal. Can be.

A method for providing a one-to-one conversation service of an IPTV messenger service or a TV-like viewing service in an IPTV terminal, wherein the terminal authentication request from the IPTV terminal in the step (a) is performed when the IPTV terminal is booted. It is preferable to carry out. In the method of providing a one-to-one conversation service among the IPTV messenger services or a TV-like viewing service, the terminal authentication of the step (a) is performed by (a1) the personalization authentication server of the IPTV messenger service system. Transmitting a terminal authentication request message including an ID of the terminal; (a2) if the terminal authentication key is received from the personalization authentication server of the IPTV messenger service system, transmitting an authentication request including the received terminal authentication key and the SAID to the messenger main system of the IPTV messenger service system; (a3) receiving a message indicating that authentication has passed from the messenger main system of the IPTV messenger service system, transmitting a login request to the messenger main system of the IPTV messenger service system and receiving a login result;

In the method of providing a one-to-one conversation service of the IPTV messenger service or a TV-like viewing service, the personal authentication of step (b) is performed by (b1) a personal identification number on the IPTV terminal screen. A PIN) input screen, and if a PIN is received from the subscriber, transmitting a personal authentication request message including the SAID and the input PIN to a personalization authentication server of an IPTV messenger service system; (b2) when receiving the personal authentication key from the personalization authentication server, transmitting an authentication request including the SAID and the personal authentication key to the messenger main system of the IPTV messenger service system; (b3) receiving an authentication result from the messenger main system of the IPTV messenger service system, and if the authentication passes, transmitting a login request to the messenger main system of the IPTV messenger service system and receiving a login result; have.

In the step (2), the authentication request sent to the messenger main system of the IPTV messenger service system preferably includes an ID and password input from the subscriber.

In the method of providing a one-to-one conversation service among IPTV messenger services or providing a viewing service like a TV, the method of displaying the portal screen on the IPTV terminal may include joining channels of the IPTV terminal to an IPTV portal screen channel. After the join is made, the portal screen multicasted on the channel may be displayed on the screen of the IPTV terminal, or the portal screen stored in advance on the IPTV terminal may be displayed on the IPTV terminal.

When the portal screen is updated to a new version, the updated version of the portal screen may be downloaded back to the IPTV terminal.

According to another aspect of the present invention, an IPTV communication client program (hereinafter referred to as IPTV) that is performed in an IPTV terminal and provides an IPTV communication service including an IPTV messenger service to an IPTV communication service subscriber while communicating with an IPTV messenger service system. The IPTV communication client performs a terminal authentication process with the IPTV messenger service system, establishes a communication main session, and requests each subscriber included in the IPTV communication service. Communication main module in charge of the control; When the IPTV subscriber selects the IPTV messenger service among the IPTV communication services, the IPTV subscriber establishes a messenger session with the IPTV messenger service system, and is in charge of performing messenger service including personal authentication and one-to-one conversation service between buddy. And a messenger module.

The IPTV communication client is preferably executed when the IPTV terminal boots.

The communication main module transmits a terminal authentication request message including an ID (SAID) of the IPTV terminal to the IPTV messenger service system when the IPTV terminal is booted, communicates with the IPTV messenger service system, and performs a terminal authentication process. Setting up a main session is preferable.

The communication main module, when inputting a messenger service request from a subscriber, sends a personal authentication request message including a personal identification number (PIN) and an ID (SAID) of an IPTV terminal received from the subscriber to the IPTV messenger service system. Transmitting, communicating with the IPTV messenger service system, and performing a personal authentication process.

The communication main module may be controlled by an observer module that recognizes a command input from a subscriber.

The messenger service performed by the messenger module includes a function for performing the one-to-one conversation service, the function of providing a user interface for a one-to-one conversation; Requesting connection location information for creating a chat room to the IPTV messenger service system and receiving a result; Sending a chat invite message to a buddy chat buddy; Sending a one-to-one conversation message input from the subscriber to the buddy; And receiving and displaying a one-to-one conversation message input from the buddy.

The messenger service performed by the messenger module may include a message sending / receiving service between buddies.

The messenger service performed by the messenger module may include: a function for performing the message sending / receiving service, the function of providing a user interface for message sending / receiving; Sending a message including contents input from a subscriber to the IPTV messenger service system; Receiving a message reception notification message from the IPTV messenger service system and displaying the message on a terminal screen; And a function of requesting the body of the received notification message to the IPTV messenger service system according to a subscriber's request, receiving the body, and displaying the body on the terminal screen.

The messenger service performed by the messenger module may include a function of requesting a message list inquiry received by a subscriber to the IPTV messenger service system and receiving a result list; And a function of requesting a message body inquiry to an IPTV messenger service system and receiving a result list for the selected message from the received list.

The messenger service performed by the messenger module may include a TV-like viewing service that allows a buddy to watch TV broadcasts of the same channel.

The messenger service performed by the messenger module may include: a function for performing a viewing service as the TV, the function of transmitting and receiving a viewing request message together with a TV including channel information being watched; And upon receiving the TV-like viewing request message, a function of changing a TV channel to a channel included in the message.

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 diagram illustrating an IPTV network configuration for implementing an IPTV messenger service according to the present invention.

The messenger main system 100 plays a main role of performing an IPTV messenger service as part of the IPTV messenger service system 500 to be described later with reference to FIG. 3, which will be described later with reference to FIG. 3.

The IPTV head-end system 200 may include broadcast content supplied from each broadcast content provider 10, such as a program provider (PP), a data provider (DP), a terrestrial provider or an IPTV content provider (CP), and It is a system for transmitting electronic program guide (EPG) information on the broadcast contents to the IPTV terminal 20 of the IPTV viewer. The IPTV headend system 200 is a subscriber switch (L3 switch) 350, a subscriber concentrator (xDSL concentrator, DSLAM) via a Gigabit or higher speed router and an L3 switch using the multicast routing protocol of the premium network 300. Alternatively, the broadcast content and the EPG information are transmitted to the IPTV terminals 20 of the plurality of subscribers joined to the corresponding channel by multicast through the Fast Ethernet Switch (FES) 360. The multicast routing protocol may be a Protocol Independent Multicast-Sparse Mode (PIM-SM) protocol, but the present invention is not limited thereto, and distance vector multicast routing protocol (DVMRP), multicast extensions to OSPF (MOSPF), and core CBT Multicast routing protocols of any one of Based Tree (PIM-SM), Protocol Independent Multicast-Sparse Mode (PIM-SM), and Protocol Independent Multicast-Dense Mode (PIM-DM) may be used.

More specifically, these IP networks can be described as IP backbone networks using unicast or multicast routing protocols, subscriber networks (e.g. Ethernet, xDSL, HFC, FTTC, FTTH), IP set-top boxes. IPTV terminal 20 including a TV connected to the STB.

The IP backbone network includes a premium network 300, each router including a Rendezvous Point (RP) 310 and a premium edge (PE) router 320 therein, a metro switch (L3 switch) (330). ), An N-Topia switch (L3 switch) 340 (N-Topia: service using a high-speed Internet through LAN equipment installed in a group building where UTP is installed), and a subscriber switch (L3 switch) 350. Each of the Layer 3 network equipment uses the PIM-SM multicast routing protocol, and the IPTV terminal 20 and the subscriber concentrator 360 use the Internet Group Management Protocol (IGMP) and the IGMP Snooping protocol, respectively. The subscriber concentrator 360 may include an xDSL concentrator, a DSLAM, or a Fast Ethernet Switch (FES).

The rendezvous point 310 of the premium network 300 manages a PIM Join list and a PIM Prune list for a plurality of multicast groups. In the present invention, a broadcast channel is a multicast group. group), the Join list and the Prune list are managed for each broadcast channel.

The Internet Group Management Protocol (IGMP) is used between the IPTV terminal 20 requesting broadcast channel selection / release and the Layer 3 network equipment (eg, subscriber switch 350) accepting the request.

The IGMP Snooping protocol is a Layer 2 device (eg subscriber concentrator) located between the IPTV terminal 20 of the subscriber requesting channel selection / release and the Layer 3 network equipment (eg subscriber switch 350) accepting the request. 360)), the Layer 2 equipment (subscriber concentrator 360) in which the IGMP Snooping protocol is driven recognizes an IGMP transmission / reception message between the IPTV terminal 20 and the Layer 3 network equipment, and makes a channel request. The channel information is transmitted only to the IPTV terminal 20.

The subscriber network refers to a network between the Layer 2 equipment (eg, subscriber concentrator 360) and the IPTV terminal 20, and includes Ethernet, xDSL (ADSL, VDSL), Hybrid Fiber Coax (HFC), and FTTC ( Fiber To The Curb (FTTH), Fiber To The Home (FTTH) structure can be composed of any one topology.

The IPTV terminal 20 may use a terminal in which an IP set-top box (IP STB) is embedded or an IP set-top box, a computer, a laptop, or a personal portable terminal connected to a user's TV. Hereinafter, for convenience, a terminal of an IPTV user is referred to as a term 'IPTV terminal'. The IPTV terminal 20 includes a hardware layer composed of hardware such as a CPU, a media processor, flash RAM, and an Ethernet module, a system software layer including a device driver and an operating system, a Java virtual machine (JVM), and a JNI (Java). Network Interface), ACAP API (ACAP-J, ACAP-X API) (Java TV, Havi UI, JMF, DAVIC, CA Interface), Conditional Access System (CAS) Module or Digital Rights Management (DRM) Rights Management) interface module, APIs for IP media service (Navigator, Audio streaming API, VOD, Flash player, HDS Client, SSO Client), middleware layer with streaming protocol (RTP, RTSP), MPEG2, MPEG4, MPEG7, It supports a variety of multi codecs such as H.264, WMV-9, and other codecs, including four layers of the application layer including an electronic program guide (EPG) client and a client for using IPTV messenger services. . The subscriber's IPTV terminal 20 is assigned an IPv4 address or an IPv6 address.

2 is a block diagram of an IPTV head-end system 200. Referring to the drawings, the IPTV headend system 200 includes a baseband system 205, a compression multiplexing system (or multiplexing system) 210, a network switch system 215, a return path server system (RPS). 220, personalization authentication server (HDS) 225, EPG providing system 230, data broadcasting system 235, media management system (MOC: Media Operation Core) 240, reception restriction system 245, billing A processing system 250, a monitoring system 255, and a subscriber management system 260.

The baseband system 205 receives an MPEG-2 broadcast signal from an external program provider (PP) or an analog broadcast signal from terrestrial waves, converts the received source broadcast signal into a SDI (Serial Digital Interface) signal, and 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) At least one of an advertisement, a logo, or a subtitle is inserted (signal editing and processing) into the broadcast video and audio signal, and transmitted to the compression multiplexing system (or multiplexing system) 210. The baseband system 205 receives a broadcast signal such as a terrestrial wave, a tuner for receiving an analog broadcast signal through a DS-3 optical end station, a Yagi antenna, an integrated receiver decoder (IRD), and a received source signal. A frame divider for converting and correcting SDI signals and synchronizing frames, and a signal divider such as an A / V router that connects / concentrates all broadcast signal channels for operational management; It includes a subtitle generator for inserting subtitles to edit and process the signal.

The compression multiplexing system (or multiplexing system) 210 converts the broadcast video and audio signals received from the baseband system 205 into an A / V encoder for each broadcasting channel (eg, 100 channels). Compresses SDI (Serial Digital Interface) video signals using the H.264 protocol, compresses audio signals to MPEG-2 AAC, and compresses broadcast data and audio to a data encoder with MPEG-2 TS. After multiplexing the data broadcasting data generated by the program and the program related information (PSI) generated by the PSI generator, the packetized IP packetized by IP packetizing the multiplexed MPEG-2 Transport Stream (TS). A transport stream is transmitted to the network switch system 215. The program related information (PSI) includes a program association table (PAT) and a program map table (PMT) information.

The network switch system 215 may include one or more L3 switches (L3 SW), the return path server system, and the subscriber station 20 for transmitting the IP packetized transport stream to an IP network by multicasting. One or more L4 switches (L4 SW) for load balancing by dividing bidirectional data receiving traffic in a unicast manner between them by a proper load, and blocking harmful traffic between the L4 switch and the IP network. One or more intrusion prevention systems.

In addition, IP multicasting may use IPv4 multicasting or IPv6 multicasting techniques. In one embodiment, if the router and the L3 switch use the PIM-SM multicast routing protocol, and the subscriber's IP set-top box uses an IPv4 address, the I3 v3 / v3 uses IGMP Snooping of the L2 network device to the L3 switch. Join to the desired broadcast channel, or if using an IPv6 address, transmit to the L3 switch using MLD v1 / v2 to join the broadcast channel.

When the network switch system 215 uses IPv4 multicasting, IPv4 multicast addresses are '224.0.0.0' to '239.255.255.255', which are different for each broadcast channel (for example, 100 channels). Use For example, when using IPv4 multicasting, SBS can use 230.1.1.1 multicast address, KBS can use 230.1.1.2 multicast address, and EBS can use 230.1.1.3 multicast address. When using the PIM-SM multicast routing protocol, the network switch system 215 transmits a register message to the rendezvous point (RP) 310, and in response, the rendezvous point (RP) 310 sends a PIM JOIN message. The process of registering a rendezvous point (RP) 310 for transmitting a path to the network switch system 215 and setting a path is performed.

The return path server system 220 records log information of a subscriber, processes bidirectional data by a data provider (DP), receives bidirectional data from the IPTV terminal 20 of the subscriber, and The corresponding response data is transmitted to the IPTV terminal 20 in unicasting.

The personalization authentication server (HDS) 225 sends an authentication request message including the ID (SAID) of the IPTV terminal 20 for the IPTV service and the application service information to be used from the subscriber's IPTV terminal 20 to the return pass server. Received through the system 220, and transmits an authentication key (Unique Key, UK) in response to the authentication request message to the subscriber's IPTV terminal 20 through the return pass server system 220.

The location information of the IPTV terminal 20 includes an ID (SAID) and subscriber information of the IPTV terminal 20. The SAID of the IPTV terminal 20 is a unique ID assigned to the IPTV terminal 20. In addition, the IPTV terminal 20 includes a single sign-on (SSO) client and an HDS client for managing opening terminal information, and the SAID of the terminal is stored in the HDS client in the IPTV terminal 20. The personalization authentication server (HDS authentication server) 225 and the HDS client of the IPTV terminal 20 manage information (SAID, IP Address, MAC Address, terminal model name) of the opened IPTV terminal 20. In the case of personal authentication-based services, when a personal identification number (PIN) is authenticated, one master PIN number (consisting of four digits) can be assigned to one household and a plurality of PIN information can be assigned to household members.

The EPG providing system 230 provides EPG information to the IPTV terminal 20.

The data broadcasting system (DBS) 235 is a data manager for managing data encoding, a PSI generator / SI generator for generating program related information / service information (PSI / SI). ), A Data Server / Data Encoder for encoding data for data broadcasting, a Multiplexer Manager (MM) for managing multiplexing functions of data for broadcasting data, PSI information, and SI information, and It includes a scheduler user interface (Scheduler UI). The data broadcasting system (DBS) 235 multiplexes data broadcasting data and PSI information generated by a data server / data encoder and a PSI generator / SI generator by an authoring tool according to the terrestrial ACAP data broadcasting standard. The SI information is then sent to the IP multiplexer. The data manager (DM) of the data broadcasting system (DBS) 235 receives an object carousel (OC) including periodically updated information received from a data agent (DA). do.

The media operation system (MOC) 240 is a system for managing various business process information (program programming information, location information, contract information, product information, etc.) for operating a broadcasting task. The media management system 240 manages broadcast program organization information, content and media management information, contract information of a program provider (PP) and a content provider (CP), and product information, and 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) 240 includes contract management in terms of acquisition, media and content metadata management, EPG information acquisition / management as broadcast schedule information, and real time broadcasting in terms of operation. Marketing analysis reporting, delivery such as settlement of CP and subscriber viewing inclination in terms of VoD channel formation management, agent management for interworking with each subsystem, VoD catalog generation management, various product management, and analysis In terms of broadcast transmission monitoring, video server transmission management and VoD subscriber authentication, transmission result recording / management for settlement with CP, and data synchronization with each subsystem.

The billing processing system 250 is a provisioning system. When using the IPTV service for a fee after user authentication, the billing processing system 250 provides a billing processing function for the use of the IPTV service for each subscriber member.

The monitoring system 255 is a control system that monitors a transmission failure of an A / V broadcast signal for IPTV broadcasting and a reception failure by monitoring a downlink of the IPTV headend system 200.

The subscriber management system 260 provides a member subscription and termination for the IPTV service, and a member information management function.

3 is a diagram illustrating a configuration of an IPTV messenger service system 500 according to the present invention. The personalization authentication server 225 and the return path server 220 are the components constituting the IPTV headend system 200 as described above with reference to FIG. 2, and on the other hand, the IPTV messenger service system according to the present invention. It is also a component of 500. The personalization authentication server 225 is a program executed on the IPTV terminal 20 and is authenticated by the IPTV communication client, which is a program that communicates with the IPTV messenger system 500, and generates an authentication key (Unique Key, UK). . The authentication includes terminal authentication based on a SAID of an IPTV terminal and personal authentication based on a personal identification number (PIN) of a user. Depending on the application service provided by IPTV, it may be determined in advance whether to service only by terminal authentication or even personal authentication. The IPTV messenger service of the present invention can also be selected from two types, but personal services such as one-to-one conversation service are preferred, so it is preferable to go through personal authentication. The personalization authentication server 225 receives authentication request information including SAID from the IPTV communication client during terminal authentication, generates an authentication key (Unique Key, UK) from the IPTV communication client, and sends the authentication key to the IPTV communication client. The authentication request information including the SAID and the PIN input by the user is received from the communication client, and an authentication key (Unique Key, UK) is generated therefrom and sent to the IPTV communication client. If the corresponding SAID or UK corresponding to the SAID and PIN is already stored, the UK is sent to the IPTV communication client. A detailed authentication process will be described later with reference to FIG. 5.

The return path server 220 enables two-way service by processing a request from an IPTV viewer, and in particular, transmits an authentication request to the personalized authentication server 225 during authentication.

A person who wants to use the IPTV messenger service may select an IPTV communication service from the portal screen provided to the user's IPTV terminal 20, and then select an IPTV messenger service among the IPTV communication services. The portal screen is provided by a Data Broadcasting System (DBS) 235, loaded on an IP-assigned channel in the compression multiplexing system (or multiplexing system) 210, and passed through a network switch system 215. 1 is provided to the user's IPTV terminal 20 through the multicast network described above. The IPTV terminal 20 of the user may store the portal screen and display the screen on the IPTV terminal 20 after booting. If the version of the stored portal screen is older than the current version of the portal screen provided by the data broadcasting system 235, the latest version may be downloaded after booting and may be shown to the user. The information may be informed to the user IPTV terminal 20 to allow the user to update the portal screen version.

The connection front end server 101 establishes and maintains a connection session with an IPTV communication client on the IPTV terminal 20. The IPTV communication client requests the above-mentioned terminal authentication to the personalized authentication server 225. The terminal authentication request may be performed when the IPTV messenger service is selected. Preferably, the terminal authentication is performed when the IPTV terminal is booted. It is good to ask. This is because after the main session is established by performing the authentication process, various notification messages from the IPTV messenger system 500 can be received. When logged in after the terminal authentication process, a main session is established between the IPTV messenger service system 500 and the IPTV communication client of the IPTV terminal 20. Through this main session, services that do not require personal authentication are made available. In addition, when selecting a service requiring personal authentication, a service session (for example, a messenger session, etc.) is established when a user logs in after personal authentication from a PIN input by a user, and such a service becomes available. The setting and maintenance of such a main session, service session, and the like are made by the access front end server 101.

The connection distribution server 102 plays a role of allowing a specific IPTV terminal 20 to be connected to a server at an appropriate position among the plurality of connection shear servers 101.1 to 101.N.

The presence server 103 can manage the presence of the service user, i.e., the connection state, by processing the login of the messenger service, and may have a presence database 106 for storing such presence state. have.

The notification server 104 notifies the person who registered the user as a buddy, such as a login or logout, when the presence server 103 changes a connection state of the specific user. As shown below in FIG. 9, it informs that a note has been received.

The watcher server 105 is responsible for finding a watcher to notify a watcher interested in a connection state of a specific user, that is, a presence change, as described above.

The chat server 108 provides a chat room between two buddies in a one-to-one chat service through an IPTV messenger service to receive a chat message and deliver the chat message to the other party. This may be a way to give both buddies a unique room number and access key that they use only.

The chat distribution server 109 receives a chat room creation information from a user who wants to start a one-to-one conversation and delivers the information to the user. The chat room creation information may be location and connection port information of a chat server that is connected to create a chat room. If the user has already established a chat session with the buddy with whom the user wishes to chat, the existing chat room information can be provided. The user accesses the chat server 108 according to this information and requests creation of a chat room. The chat server 108 provides the newly created chat room information when the user is newly connected, and the existing chat room information when an existing chat room exists. do.

The buddy server 110 manages a list of those registered by each user as a buddy. Accordingly, the buddy is added, deleted, or changed, and upon request of the user, the buddy list or detailed information of the buddy is provided.

The note server 111 receives and stores a note sent and received between both sides in the note service through the IPTV messenger service and delivers it to the other party. In addition, it is possible to provide a list of the received messages and the contents of the text at the request of the user.

The broadcasting server 112 is responsible for delivering the contents to be commonly known to all users connected to the IPTV messenger service system.

The authentication server 113 performs authentication by validating the authentication key (Unique Key, UK) generated by the personalization authentication server 225 described above. As described above, authentication using the IPTV terminal ID (SAID), that is, UK verification in terminal authentication may be performed, and a personal identification number (PIN) input from the user in a service requiring personal authentication may be used. It is also possible to perform UK verification in personal authentication.

4 is a diagram illustrating a structure of an IPTV communication client 700 operated in the IPTV terminal 20 to implement an IPTV messenger service according to the present invention. The IPTV messenger service system 500 and the IPTV communication client are connected through an information communication network. As shown in FIG. 3, the information communication network includes an internet network and a multicast network.

The communication main module 710 is a module for controlling each service module of the IPTV communication client 700 after establishing a main session with the IPTV messenger service system 500. The communication main module 710 may be driven when the IPTV communication service is selected in the IPTV terminal 20 or may be driven when the IPTV terminal 20 is booted to perform a terminal authentication process. That is, as described above with reference to FIG. 3, the terminal requests authentication to the personalized authentication server 225, requests login after authentication passes by the authentication server 113, and when logged in, the messenger main of the IPTV messenger service system 500. The main session is established through the system 100 and the access front end server 101. IPTV communication services that do not require the entry of a Personal Identification Number (PIN) can be used immediately by setting up such a main session. On the other hand, when a user selects a personalized service requiring input of a PIN and enters a PIN, for example, when selecting an IPTV messenger service and entering a PIN, the communication main module 710 also personalizes personal authentication. After requesting the authentication server 225 and requesting login after authentication passes by the authentication server 113 and logging in, a messenger session is performed through the messenger main system 100 of the IPTV messenger service system 500 and the access front end server 101. Will be set. This is a session set up and maintained for the messenger service separately from the aforementioned main session.

In this way, the communication main module 710 not only establishes a communication main session and a messenger session by performing terminal authentication and personal authentication, but also drives and controls each communication service module performed by the IPTV communication client 700. For example, when a user requests a messenger service to the IPTV terminal 20 through the remote controller 30 or the like, a request in which an observer module (not shown), which is a program module performed in the IPTV terminal 20, is input. Recognizing this, the observer module drives the communication main module 710 of the IPTV communication client 700. The driven communication main module 710 performs personal authentication and drives the messenger control unit 721 to start a messenger service.

The messenger controller 721 provides a messenger main screen and performs each module 722 to 725 according to a user's selection on the main screen.

The connection unit 726 is responsible for transmitting or receiving a message transmitted and received with the IPTV messenger service system 500.

The buddy module 722 allows the user to select a buddy. To this end, a buddy list UI (User Interface) providing module provides a user interface, and processes a buddy list request and a list reception from the buddy list inquiry module to the IPTV messenger service system 500. Sometimes buddy image information can be requested and received, such as a picture of the other party, which is processed by the buddy image module.

The conversation module 723 provides a one-to-one conversation service. The dialog UI providing module provides a user interface for a conversation, and the chat room creation request module receives a chat room creation information request and creation information received from the IPTV messenger service system 500 and a chat room creation request and response. The chat request module generates an chat room and sends an invitation request to the other buddy as a conversation and receives a response. When the other party accepts the chat invitation request, the chat request module sends chat room information to participate in the chat. The conversation message transmission module and the conversation message reception module transmit and receive one-to-one conversation messages between buddies.

The message module 724 provides a message sending and message receiving service. The message UI providing module provides a user interface for a message, and requests a list or body of the received message to the IPTV messenger service system 500 through the message inquiry module and receives a result. In addition, a message is sent and received between the buddy by the message sending module and the message receiving module.

The TV Watch module 725 suggests that the buddy connected to the messenger watch the TV of the same channel or automatically controls the channel to the same channel when receiving a suggestion from another buddy so that the same channel can be easily connected between the buddies. Provides services to watch TV. The channel invitation UI providing module provides a user interface for watching TV, and in the channel invitation request and result receiving module, sends a channel invitation (view TV) request to the selected buddy through the IPTV messenger service system 500 and sends a response. Will be received. The channel invite request receiving module receives a channel invite (view like TV) request from the other party, and thus the channel control module calls a module for controlling a channel on the IPTV terminal to change a channel to a specific channel.

5 is a diagram illustrating an authentication process when using an IPTV messenger service according to the present invention. Referring to the figure, the IPTV terminal 20 starts the authentication process by requesting terminal authentication to the personalized authentication server (HDS) 225 (S501). Although not shown, the terminal authentication request is transmitted to the personalized authentication server 225 through the return path server system 220. The terminal authentication may be performed when the IPTV messenger service is selected, but is preferably performed immediately after the IPTV terminal 20 is booted. This is because after the main session is established by performing the authentication process, various notification messages from the IPTV messenger system 500 can be received. As described above with reference to FIG. 4, this is performed by the communication main module 710 of the IPTV communication client 700 performed in the IPTV terminal 20. Information included in the SAID request may include the SAID and application information of the ID of the IPTV terminal. Currently only the communication main module 710 is being performed, the application information will be an IPTV communication service. The personalization authentication server 225 searches whether the authentication key (Unique Key, UK) corresponding to the SAID and the application information exists, and if present, returns the UK, and if not, creates a new UK to generate an IPTV terminal 20 ) Returns the UK (S502). The IPTV communication client 700 of the IPTV terminal 20 requests the access distribution server 102 to access the front-end server information to be connected (S503). At this time, the 'seed value' to encrypt the UK, SAID, etc. may be requested to the access distribution server 102 (S503). The access distribution server transmits the information about the front-end server to which the IPTV communication client 700 is to access (S504). When the 'seed value' request is made, the access distribution server may generate and transmit the 'seed value' (S504). The IPTV communication client 700 generates a key that encrypts UK, SAID, etc. using the 'seed value' and authenticates the value in the messenger main system 100 of the IPTV messenger service system 500. The server 113 sends a request for authentication (S505), and the authentication server 113 verifies the received key value and sends the result to the IPTV communication client 700 (S506). When the authentication passes, the IPTV communication client 700 requests a login using the SAID (S507), and the access front end server 101 which receives the request transmits the login request to the presence server 103 again ( S508). If the login result is sent to the IPTV communication client 700 via the access front end server 101 (S509, S510) and the login is passed, the connection front end server (IP) between the IPTV communication client 700 and the IPTV messenger service system 500 Through 101, a main session for communication service is established. The main session is managed by SAID.

In the case of a service set to be serviced without personal authentication among IPTV communication services, the service can be used by simply selecting the service while the communication main session is established. That is, in this case, steps S511 to S521 described later do not need to be rough. However, in the case of the IPTV messenger service, it is preferable to set the personal authentication. Therefore, when selecting the IPTV messenger service, the user enters a Personal Identification Number (PIN) and goes through a personal authentication process.

When the user selects the IPTV messenger service and inputs the PIN, the communication main module 710 requests the personalization authentication server 225 for personal authentication (S511). Although not shown, the request for personal authentication is also transmitted to the personalized authentication server 225 through the return path server system 220. The information included in the personal authentication request includes a SAID, which is an ID of the IPTV terminal, and a PIN input by the user together with application information. The personalization authentication server 225 searches whether the authentication key (Unique Key, UK) corresponding to the SAID, the application information, and the PIN exists, and if so, returns the UK, but if not, creates a new UK to generate an IPTV terminal ( 20) and return the UK (S512). The IPTV communication client 700 generates a key encrypted with the UK, SAID, etc., sends the value to the authentication server 113 to request authentication (S513), and the authentication server 113 verifies the received key value. The result is sent to the IPTV communication client 700 (S514). The IPTV communication client 700 receives an ID and a password from the user when using the service for the first time (S515), requests authentication to the authentication server 113, and receives the result (S516, S517). Request messenger login through 101 (S518 and S519), and the presence server 103 sends the login result to the IPTV communication client 700 (S520 and S521). If the login passes, a messenger session is established between the IPTV communication client 700 and the IPTV messenger service system 500 through the access front end server 101, thereby enabling a messenger service.

6 is a diagram illustrating a process in which a user who logs in to an IPTV messenger service according to the present invention informs another user who registers the user as a buddy that the user is logged in. Referring to the figure, the user 1 makes a login request from his IPTV terminal 20.1 (S601), and the access front end server 101 receives the user's access information after storing it (S602). Requests to log in to the messenger service (S603). The presence server 103 authenticates the user through an ID password or the like (S604). When the login result and the login pass are passed, the presence server 103 displays the presence information, that is, the access information of those registered by the user Buddy. The IPTV terminal 20.1 of the user 1 is informed (S605 to S607). In this process, the access front end server stores the logged-in user 1 to manage login user information (S606) and the IPTV terminal 20.1 of the user 1 ) Displays the login result and the connection status information of the registered buddies on the screen (S608). At this time, the presence server 103 sends a message indicating that the user 1 has been logged in to the notification server 104 when the login is passed in the authentication of the user 1 (S604) (S609), the user 1 is logged in, the user 1 buddy Notify those who have registered as (Users 2 through N) (S610). They update the presence information as the user 1 is connected (S611).

7 is a view illustrating a process of requesting a buddy list and selecting a specific buddy from the buddy list for using the IPTV messenger service according to the present invention. Referring to the drawings, the user requests buddy and group basic information to the buddy server 110 to select a buddy to use the IPTV messenger service together in his IPTV terminal 20 (S701), and the buddy server 110 ) Returns a result list (S702). More detailed information about each buddy may be requested (S703), and the buddy server 110 may send a result list accordingly (S704). The IPTV terminal 20 having received this information displays the contents on the screen to the user (S705), and the user can select a specific buddy as the counterpart of the messenger service (S706). Further, image information such as a photograph of the buddy may be obtained from an image server (not shown in FIG. 3) (S707).

8 is a diagram illustrating a one-to-one conversation service execution process in an IPTV messenger service according to the present invention. Referring to the figure, user 1 first selects a specific buddy (user 2) in his IPTV terminal 20.1 (see FIG. 7), and then selects a one-to-one conversation. "Client 1") requests the chat room creation information to the chat distribution server 109 (S801). The conversation distribution server 109 inquires whether there is already a conversation session with the IPTV communication client (hereinafter referred to as 'client 2') performed in the IPTV 20.2 of the user 2 designated by the user 1 as the conversation counterpart (S802). If there is, the existing chat room sends the generated chat server information to the client 1 (20.1), if not, it sends the new chat server information to the client 1 (20.1) (S803). Client 1 (20.1) receives the chat server information to be newly connected, connects to the chat server 108 and sends a chat room creation request (S804). If there is a chat room already created between client 1 (20.1) and client 2 (20.2), the chat server 108 sends the chat room information to the client 1 (20.1) (S806), and if there is no existing chat room, the client 1 (20.1). New chat rooms are allocated between the client and the client 2 (20.2) (S805), and the chat room information is transmitted to the client 1 (S806). The chat room information may include a chat room channel number and a chat room access key. At this time, the client 1 (20.1) sends a chat room invitation message including the channel number and the chat room access key to the client 2 (20.2) (S807). When the chat server 108 receives the chat room invitation acceptance message from the client 2 (S808), the chat room participation information may be sent to both clients 20.1 and 20.2 (S809 and S810). This may include a chat room creation result, chat room information, chat participant information, and the like. When the client 1 transmits the chat message (S811), the chat server 108 inquires the chat room participant status (S812) and sends a chat message (S813) to the client 1 if it is connected (S813). On the other hand, when there is a change in the connection state or the like, it is notified to the chat server 108 and the chat server 108 notifies the counterpart client of the status change (S815, S816).

9 is a diagram illustrating a message service process in the IPTV messenger service according to the present invention. Referring to the drawings, the IPTV communication client (hereinafter referred to as 'client 1') performed in the IPTV terminal 20.1 of the user 1 is the message server 111, and the number of newly received messages, that is, unread messages and Newly received message list and the like can be requested and received (S901 to S904). The memo server 111 changes the state of the memo read to "Read" for the memo read so that it can be excluded from the new memo inquiry later (S905). After the user 1 selects a buddy (user 2) (not shown) and sends a message from the client 1 (20.1) to the buddy (user 2) (S906), the message server 111 first stores the message ( S907, it is checked whether the receiver is connected (S908). When the receiver is connected to notify the notification server 104 that the message has been received (S909), the notification server 104 is the IPTV communication client (hereinafter referred to as 'Client 2') performed in the IPTV terminal 20.2 of the user 2 (S910). The message server 104 sends a result of whether the message is sent to the client 1 (S911). When the client 2 requests to read the body of the message, the body sends the body of the message (S912, S913), and changes the state of reading the message to "Read" so that it can be excluded from the new message inquiry later (S914).

FIG. 10 is a diagram illustrating a process of inquiring a list of all messages and a body of messages received by an IPTV messenger service according to the present invention. Referring to the drawings, the IPTV communication client (hereinafter referred to as the 'client') performed in the user's IPTV terminal 20 inquires a list of all messages received by the message server 111 (S1001) and the message server 111 Sends the result list (S1002). When the user selects a specific note (S1003), the client 20 sends a message body inquiry request to the message server 111 with respect to the selected message (S1004). The message server 111 sends the message body as a result (S1005). ). In this case, the read memo is changed to "Read" so that it can be excluded from the new note inquiry later (S1006).

11 is a diagram illustrating a process of performing a viewing service together with a TV in the IPTV messenger service according to the present invention. Referring to the drawing, after a user 1 selects a buddy (user 2) (not shown), an IPTV communication client (hereinafter referred to as 'client 1') performed in the IPTV terminal 20.1 of the user 1 is referred to as a buddy (user 2). When sending a viewing request like a TV to the IPTV communication client (hereinafter referred to as 'client 2') performed in the IPTV terminal (20.2) of (S1101), the access front end server 101 receives the TV as a client 2 viewing Send a request (S1102). If user 2 inputs the viewing permission of TV together to client 2, client 2 can change the channel of IPTV 20.2 (S1103) and deliver the result (S1104, S1105).

12 is a diagram illustrating an embodiment of a screen for selecting an IPTV messenger service according to the present invention. Referring to the drawing, the scroll bar is placed on the messenger service among the services included in the communication service menu 1201 provided by the IPTV service system. Here you can select the IPTV messenger service.

13 is a diagram illustrating an embodiment of a screen for selecting a service included in an IPTV messenger service according to the present invention. Referring to the drawings, it is shown that a service included in the messenger service menu 1301 may include services including a chat service 1302, a message service 1303, and a channel invitation (TV) service 1304. have. In the drawing, 'Kim Chul-soo' represents a buddy selected by the service user.

14 is a diagram illustrating an embodiment of a one-to-one chat service screen among services included in an IPTV messenger service according to the present invention. Referring to the drawings, there is a chat service window 1401, in which a conversation between buddies is shown.

15 is a diagram illustrating an embodiment of a message service screen among services included in an IPTV messenger service according to the present invention. Referring to the drawings, a chat service window 1501 is shown.

16 is a diagram illustrating an embodiment of a portal screen that can use various services provided by an IPTV system. The user who wants to use the IPTV messenger service selects the IPTV communication service 1602 on the portal screen 1601 provided to the user's IPTV terminal 20, and then, as described above with reference to FIG. 12, among the IPTV communication services 1602. Similarly, an IPTV messenger service (“messenger”) 1202 may be selected. The portal screen 1601 is provided by a data broadcasting system (DBS) 235, and is loaded on a portal screen channel to which an IP is assigned by the compression multiplexing system (or multiplexing system) 210, and a network switch system. Through the 215, it is provided to the user's IPTV terminal 20 through the multicast network described above in FIG. The IPTV terminal 20 of the user automatically requests a channel join to the aforementioned portal screen channel after booting and shows the portal screen multicasted in the channel after the channel join is made, or Alternatively, the downloaded portal screen 1601 may be stored, and the stored portal screen 1601 may be displayed on the IPTV terminal 20 screen after booting. If the version of the stored portal screen is older than the current version of the portal screen provided by the data broadcasting system 235, the latest version may be downloaded after booting and may be shown to the user. The information may be informed to the user IPTV terminal 20 to allow the user to update the portal screen version.

After a channel join of the IPTV terminal is performed on the IPTV portal screen channel, the portal screen multicasted in the channel is displayed on the screen of the IPTV terminal,

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto and is intended by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

According to the present invention, by watching a general broadcast using an IPTV terminal including an IPTV set-top box connected to an IPTV network, and by simply operating the remote control as if turning a channel, a messenger service can be used directly on the IPTV terminal. It is effective to provide a PTV messenger service providing method and a system thereof.

Claims (38)

An IPTV messenger service system that provides a messenger service (hereinafter referred to as an IPTV messenger service) to an IPTV terminal. A data broadcasting system for generating portal screen data including information on an IPTV messenger service; A return path server system connected to the IPTV terminal through a IPTV network through a return channel and transmitting and receiving bidirectional data with the IPTV terminal in a unicasting manner to provide an interactive IPTV messenger service; Receiving an authentication request message for the IPTV messenger service from the IPTV terminal using an IPTV network through the return pass server system, and generating an authentication key (Unique Key, UK) in response to the authentication request message, the return pass server Personalization authentication server for transmitting to the IPTV terminal through a system; A messenger main system in charge of performing an IPTV messenger service provided between IPTV messenger service subscribers; IPTV messenger service system comprising a. The method according to claim 1, A multiplexing system multiplexing the portal screen data received from the data broadcasting system and program specific information (PSI), and outputting the multiplexed stream by IP packetizing; And A network switch system for transmitting the IP packetized signal received from the multiplexing system to an IPTV terminal through an IPTV network in a multicasting manner; IPTV messenger service system further comprising. The method according to claim 1, The messenger main system is A buddy server responsible for adding, deleting, or changing a messenger group and a buddy; A connection front end server for establishing and maintaining a connection session with the IPTV terminal through an IPTV messenger client (hereinafter referred to as a client) in the IPTV terminal; A presence server, which is connected to the access frontend server, processes a login and a logout of an IPTV messenger service subscriber and manages connection status information accordingly; An authentication server for performing authentication of the IPTV terminal or authentication of an individual subscriber of an IPTV messenger service according to information received from a client; A subscriber information database server managing subscriber information of the IPTV messenger service; And A chat server managing a chat session during a one-to-one chat service provided by an IPTV messenger service system; IPTV messenger service system comprising a. The method according to claim 3, The messenger main system is A broadcasting server responsible for a common notification function for a message to be announced to all users of an IPTV messenger service system; IPTV messenger service system further comprising. The method according to claim 3, The messenger main system is A message server that manages receipt, transmission, and storage of messages sent and received between users; IPTV messenger service system further comprising. The method according to claim 3 The messenger main system is A connection distribution server that manages connection location information of the IPTV terminal and designates a connection front end server to be connected when the IPTV terminal requests a connection; IPTV messenger service system further comprising. The method according to claim 3, The messenger main system is A presence database that stores connected client information and buddy information; IPTV messenger service system further comprising. The method according to claim 3, The messenger main system is A notification server, connected to the access point server, to transmit a status notification message including a login, logout, and away of a subscriber of an IPTV messenger service to a client of the other IPTV terminal; IPTV messenger service system further comprising. The method according to claim 1, The IPTV terminal, TVs with built-in IP set-top boxes, including IP set-top boxes connected to service users' TVs, computers, laptops and personal digital assistants IPTV messenger service system, characterized in that. A method in which an IPTV messenger service system provides a one-to-one conversation service among messenger services (hereinafter referred to as IPTV messenger services) using IPTV, (a) performing terminal authentication when a terminal authentication request is received from an IPTV terminal of an IPTV messenger service subscriber (hereinafter referred to as a subscriber) through an IPTV network; (b) performing personal authentication upon receiving a request for authentication of a user of the IPTV messenger service from the subscriber's IPTV terminal; (c) providing buddy information to the IPTV terminal when the subscriber requests a buddy information from the IPTV terminal; (d) If a specific buddy is selected from the subscriber and a one-to-one chat service is selected from among the IPTV messenger services, and the server receives the connection server information for creating a chat room from the IPTV terminal, the chat server information of the IPTV messenger service system to be accessed is recalled. Providing to the subscriber's IPTV terminal; (e) When the chat server receives a chat room creation request from the subscriber IPTV terminal, if there is a chat room previously created between the subscriber and the buddy, the existing chat room information is transmitted to the subscriber's IPTV terminal. Creating a new chat room and transmitting the chat room information to the subscriber's IPTV terminal when there is no chat room created in the mobile terminal; (f) When the buddy terminal receives a chat room invitation message sent from the subscriber's IPTV terminal by newly creating a chat room, the chat server receives a chat room invitation acceptance message sent from the buddy terminal in response thereto. Sending, by the server, a chat room participation result message to the buddy terminal and the subscriber IPTV terminal; (g) exchanging a message between the subscriber IPTV terminal and the buddy terminal in the chat room; IPTV messenger service providing method comprising a. The method according to claim 10, After step (g), (h) If a message sending service is selected together with the selection of the other party (buddy, buddy) to send a message from the subscriber, proceed to step (i), and the text inquiry for the received message list inquiry service or the received specific message; If a service is selected, proceeding to step (k); (i) when a message to be sent to the buddy is input to the buddy, receiving and storing the message, inquiring the connection status of the selected buddy terminal, and informing the buddy terminal that the message has been received when connected; (j) if the message reading request is received from the selected buddy terminal, transmitting the message contents to the buddy terminal; (k) if the message list inquiry service received from the subscriber or the text inquiry service for the specific note received is selected, the subscriber provides the subscriber with the body of the received message list or the specific note received according to the subscriber's selection; Doing; IPTV messenger service providing method comprising a further. A method in which an IPTV messenger service system provides a TV-like viewing service among messenger services (hereinafter referred to as IPTV messenger services) using IPTV, (a) performing terminal authentication when a terminal authentication request is received from an IPTV terminal of an IPTV messenger service subscriber (hereinafter referred to as a subscriber) through an IPTV network; (b) performing personal authentication upon receiving a request for authentication of a user of the IPTV messenger service from the subscriber's IPTV terminal; (c) providing buddy information to the IPTV terminal when the subscriber requests a buddy information from the IPTV terminal; (d) When a buddy is selected from the subscriber and a viewing service such as a TV that enables viewing of the same channel as the selected buddy is selected, receiving a viewing service request like a TV from the IPTV terminal receiving the selection. step; (e) transmitting a viewing request together with a TV to the selected buddy terminal; IPTV messenger service providing method comprising a. The method according to claim 12, After step (e), (f) If a message sending service is selected together with the selection of the other party (buddy, buddy) to send a message from the subscriber, proceed to step (g), and the text inquiry on the received message list inquiry service or the received specific message; If a service is selected, proceeding to step (i); (g) if a message to be sent to the buddy is inputted, receiving and storing the message, inquiring the connection status of the selected buddy terminal and notifying the buddy terminal of the received message if the message is being accessed; (h) if a message reading request is received from the selected buddy terminal, transmitting the message contents to the buddy terminal; (i) if a message list inquiry service received from the subscriber or a text inquiry service for a specific note received is selected, the subscriber provides the subscriber with the body of the received message list or the specific note received according to the subscriber's selection; Doing; IPTV messenger service providing method comprising a further. The method according to any one of claims 10 to 13, The terminal authentication request from the IPTV terminal in the step (a), Performed at the time of booting the IPTV terminal IPTV messenger service providing method characterized in that. The method according to any one of claims 10 to 13, Terminal authentication of the step (a), (a1) When the personalization authentication server of the IPTV messenger service system receives the terminal authentication request message including the ID (SAID) of the terminal from the IPTV terminal, generates a terminal authentication key corresponding to the SAID and transmits the terminal authentication key to the IPTV terminal. step; (a2) when the messenger main system of the IPTV messenger service system receives an authentication request including the SAID and the terminal authentication key from the IPTV terminal, performing authentication and transmitting a result to the IPTV terminal; (a3) when the messenger main system of the IPTV messenger service system receives a login request from the IPTV terminal, performing a login and transmitting a result to the IPTV terminal; IPTV messenger service providing method comprising a. The method according to any one of claims 10 to 13, Personal authentication of the step (b), (b1) when the personalization authentication server of the IPTV messenger service system receives a personal authentication request message including an ID (SAID) of the terminal and a personal identification number (PIN) input from the subscriber, from the IPTV terminal, Generating a personal authentication key corresponding to the SAID and the PIN and transmitting the same to the IPTV terminal; (b2) when the messenger main system of the IPTV messenger service system receives an authentication request including the SAID and the personal authentication key from the IPTV terminal, performing authentication and transmitting a result to the IPTV terminal; (b3) when the messenger main system of the IPTV messenger service system receives a login request from the IPTV terminal, performing a login and transmitting a result to the IPTV terminal; IPTV messenger service providing method comprising a. The method according to claim 16, In the authentication request received in step (b2), Including the ID and password entered from the subscriber IPTV messenger service providing method characterized in that. An IPTV terminal is connected to an IPTV messenger service system and an IPTV network by an IPTV communication client program (hereinafter referred to as an "IPTV communication client") performed inside the terminal, and provides a messenger service using IPTV to an IPTV service subscriber. As a method of providing a one-to-one conversation service (hereinafter referred to as IPTV messenger service), (a) requesting authentication of the IPTV terminal from the IPTV messenger service system to perform terminal authentication; (b) in the portal screen provided by the IPTV messenger service system, upon receiving the IPTV messenger service from the subscriber, requesting the IPTV messenger service system to authenticate the individual subscriber, and performing personal authentication; (c) requesting buddy information from the IPTV messenger service system when there is a buddy information request of the subscriber, and displaying buddy information in response to the buddy information on the IPTV terminal screen; (d) if a specific buddy is selected from the subscriber and a one-to-one chat service is selected from among the IPTV messenger services, requesting the IPTV messenger service system to access chat server information to create a chat room; (e) when receiving chat server information of the IPTV messenger service system to be connected from the IPTV messenger service system, sending a chat room creation request to the chat server; (f) if the chat room information generated from the IPTV messenger service system is received, in the case of a newly created chat room, transmitting a chat room invitation message to the selected buddy terminal; (g) transmitting and receiving a conversation message with the buddy terminal when the buddy terminal accepts the invitation; IPTV messenger service providing method of the IPTV terminal comprising a. The method according to claim 18, After step (g), (h) If a message sending service is selected together with the selection of the other party (buddy, buddy) to send a message from the subscriber, proceed to step (i), and the text inquiry for the received message list inquiry service or the received specific message; If a service is selected, proceeding to step (k); (i) providing a message window for message input; (j) if a message to be sent to the buddy is sent from the subscriber to the buddy through the message window, sending it to the IPTV messenger service system; (k) if the message list inquiry service received from the subscriber or the text inquiry service for the specific message received is selected, sending the inquiry request to the IPTV messenger service system; (l) if a message list or a body of the received specific message is received from the IPTV messenger service system in response to the inquiry request transmitted in step (l), displaying the message on the screen of the IPTV terminal; IPTV messenger service providing method of the IPTV terminal, characterized in that it further comprises. An IPTV terminal is connected to an IPTV messenger service system and an IPTV network by an IPTV communication client program (hereinafter referred to as an "IPTV communication client") performed inside the terminal, and provides a messenger service using IPTV to an IPTV service subscriber. As a method of providing a TV viewing service (hereinafter referred to as a TV viewing service) of the same channel as the selected buddy (hereinafter referred to as an IPTV messenger service), (a) requesting authentication of the IPTV terminal from the IPTV messenger service system to perform terminal authentication; (b) in the portal screen provided by the IPTV messenger service system, upon receiving the IPTV messenger service from the subscriber, requesting the IPTV messenger service system to authenticate the individual subscriber, and performing personal authentication; (c) requesting buddy information from the IPTV messenger service system when there is a buddy information request of the subscriber, and displaying buddy information in response to the buddy information on the IPTV terminal screen; (d) requesting the IPTV messenger service system to send a TV viewing request for the same channel to the buddy when a specific buddy is selected from the subscriber and a TV-like viewing service is selected among IPTV messenger services; (e) receiving a result of accepting the buddy from the IPTV messenger service system; IPTV messenger service providing method of the IPTV terminal comprising a. The method of claim 20, After step (e), (f) If a message sending service is selected together with the selection of the other party (buddy, buddy) to send a message from the subscriber, proceed to step (g), and the text inquiry on the received message list inquiry service or the received specific message; If a service is selected, proceeding to step (i); (g) providing a message window for message input; (h) sending a message to the buddy via the message window from the subscriber to the buddy, and sending it to the IPTV messenger service system; (i) if a message list inquiry service received from the subscriber or a text inquiry service for a specific note received is selected, sending the inquiry request to the IPTV messenger service system; (j) in response to the inquiry request sent in step (j), displaying a message list or a body of the received specific message from the IPTV messenger service system, and displaying the message on the screen of the IPTV terminal; IPTV messenger service providing method of the IPTV terminal, characterized in that it further comprises. The method according to any one of claims 18 to 21, The terminal authentication request from the IPTV terminal in the step (a), Performed at the time of booting the IPTV terminal IPTV messenger service providing method of the IPTV terminal, characterized in that. The method according to any one of claims 18 to 21, Terminal authentication of the step (a), (a1) transmitting a terminal authentication request message including an ID (SAID) of the IPTV terminal to the personalization authentication server of the IPTV messenger service system; (a2) if the terminal authentication key is received from the personalization authentication server of the IPTV messenger service system, transmitting an authentication request including the received terminal authentication key and the SAID to the messenger main system of the IPTV messenger service system; (a3) receiving a message indicating that authentication has passed from the messenger main system of the IPTV messenger service system, transmitting a login request to the messenger main system of the IPTV messenger service system and receiving a login result; IPTV messenger service providing method of an IPTV terminal comprising a. The method according to any one of claims 18 to 21, Personal authentication of the step (b), (b1) Provide a personal identification number (PIN) input screen on the IPTV terminal screen, and upon receiving a PIN from the subscriber, personalize the personal authentication request message including the SAID and the entered PIN in the IPTV messenger service system. Transmitting to the authentication server; (b2) when receiving the personal authentication key from the personalization authentication server, transmitting an authentication request including the SAID and the personal authentication key to the messenger main system of the IPTV messenger service system; (b3) receiving an authentication result from the messenger main system of the IPTV messenger service system, and if the authentication passes, sending a login request to the messenger main system of the IPTV messenger service system and receiving a login result; IPTV messenger service providing method of an IPTV terminal comprising a. The method of claim 24, In the step (2) the authentication request sent to the messenger main system of the IPTV messenger service system, Including the ID and password entered from the subscriber IPTV messenger service providing method of the IPTV terminal, characterized in that. The method according to any one of claims 18 to 21, The portal screen is displayed on the IPTV terminal, After a channel join of the IPTV terminal is performed on the IPTV portal screen channel, the portal screen multicasted in the channel is displayed on the screen of the IPTV terminal, A portal screen downloaded in advance and stored in the IPTV terminal is displayed on the IPTV terminal. IPTV messenger service providing method of the IPTV terminal, characterized in that. The method of claim 26, The portal screen, When updated to a new version, the updated version of the portal screen can be downloaded back to the IPTV terminal IPTV messenger service providing method of the IPTV terminal, characterized in that. A record of an IPTV communication client program (hereinafter referred to as an IPTV communication client) that is performed in an IPTV terminal and provides an IPTV communication service including an IPTV messenger service to an IPTV communication service subscriber while communicating with the IPTV messenger service system. As a medium, The IPTV communication client, A communication main module configured to perform a terminal authentication process with the IPTV messenger service system, establish a communication main session, and control each service included in the IPTV communication service according to a subscriber's request; When the IPTV subscriber selects the IPTV messenger service among the IPTV communication services, the IPTV subscriber establishes a messenger session with the IPTV messenger service system, and is in charge of performing messenger service including personal authentication and one-to-one conversation service between buddy. Messenger module; Recorded media recorded by the IPTV communication client comprising a. The method according to claim 28, The IPTV communication client, What happens when the IPTV terminal boots up Recorded media recorded by the IPTV communication client. The method according to claim 28, The communication main module, Establishing a communication main session by transmitting a terminal authentication request message including an ID (SAID) of the IPTV terminal to the IPTV messenger service system when the IPTV terminal is booted, communicating with the IPTV messenger service system and performing a terminal authentication process Recorded media recorded by the IPTV communication client. The method according to claim 28, The communication main module, When a messenger service request is input from a subscriber, a personal authentication request message including a personal identification number (PIN) and an ID (SAID) of an IPTV terminal received from the subscriber is transmitted to the IPTV messenger service system, thereby transmitting the IPTV messenger. Further comprising a function of communicating with the service system and performing a personal authentication process Recorded media recorded by the IPTV communication client. The method according to claim 28, The communication main module, Controlled by an observer module that recognizes commands entered from subscribers Recorded media recorded by the IPTV communication client. The method according to claim 28, In the messenger service performed by the messenger module, As a function for performing the one-to-one conversation service, Providing a user interface for one-to-one conversation; Requesting connection location information for creating a chat room to the IPTV messenger service system and receiving a result; Sending a chat invite message to a buddy chat buddy; Sending a one-to-one conversation message input from the subscriber to the buddy; Receiving and displaying a one-to-one conversation message input from a buddy; Recorded media recorded on the IPTV communication client comprising a. The method according to claim 28, In the messenger service performed by the messenger module, Involving message sending / receiving between buddies Recorded media recorded by the IPTV communication client. The method of claim 34, wherein Messenger service performed by the messenger module, As a function for performing the message receiving and receiving service, Providing a user interface for sending and receiving messages; Sending a message including contents input from a subscriber to the IPTV messenger service system; Receiving a message reception notification message from the IPTV messenger service system and displaying the message on a terminal screen; Requesting the body of the received notification message to the IPTV messenger service system according to a subscriber's request, receiving the body, and displaying the body on the terminal screen; Recorded media recorded on the IPTV communication client comprising a. The method of claim 35, wherein Messenger service performed by the messenger module, Requesting the received message list inquiry to the IPTV messenger service system according to a subscriber's request and receiving a result list; A function of requesting a message body inquiry to an IPTV messenger service system for a selected message among the received list by the subscriber and receiving a result list; Recording medium in which the IPTV communication client recorded further comprising a. The method according to claim 28, In the messenger service performed by the messenger module, Includes a TV-like viewing service that allows you to watch TV broadcasts of the same channel between buddies Recorded media recorded by the IPTV communication client. The method of claim 37, In the messenger service performed by the messenger module, As a function for performing the viewing service as the TV, Transmitting and receiving a view request message together with a TV including channel information being watched; Upon receiving a TV-like viewing request message, changing the TV channel to the channel included in the message; Recorded media recorded on the IPTV communication client comprising a.

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