KR20070088137A - Method and system for providing interactive dmb broadcasting service by using dmb terminal - Google Patents

Abstract

A method and a system for providing an interactive DMB(Digital Multimedia Broadcasting) service by using a DMB terminal are provided to enable interactive broadcasting capable of audience participation without limitation of a place while securing the real time property of DMB in the satellite DMB service, thereby inducing audience's interests. A method for providing an interactive DMB(Digital Multimedia Broadcasting) service by using a DMB terminal comprises the following steps of: searching the DMB terminal connected to a channel capable of interactive broadcasting out of DMB broadcasting currently broadcasted(S600); transmitting a group broadcasting message including broadcasting information to at least one or more searched DMB terminals(S602); receiving a response message made in the DMB terminal receiving the group broadcasting message in real time(S604); and providing the interactive broadcasting by reflecting the content of the received response message in real time(S606).

Description

Method and system for providing interactive DMB broadcasting service using DMMB terminal {Method and System for Providing Interactive DMB Broadcasting Service by Using DMB Terminal}

1 is a block diagram schematically illustrating a system for providing a bidirectional DMB broadcasting service using a DMMB terminal according to an embodiment of the present invention;

2 is a block diagram schematically showing the internal configuration of a satellite DMB broadcasting center according to the first embodiment of the present invention;

3 is an example screen showing an example of a group short message according to a first preferred embodiment of the present invention;

4 is a block diagram schematically showing an internal configuration of a satellite DMB broadcasting center according to a second embodiment of the present invention;

FIG. 5 is a block diagram schematically illustrating an internal configuration of a satellite DMB broadcasting center providing an interactive DMB broadcasting service through a video phone call using a DMMB terminal according to a third embodiment of the present invention.

6 is a flowchart schematically illustrating a process of providing an interactive DMB broadcasting service using a DMMB terminal according to a first embodiment of the present invention;

7 is a flowchart schematically illustrating a process of providing a bidirectional DMB broadcasting service using a DMB terminal according to a second embodiment of the present invention;

8 is a flowchart schematically illustrating a process of providing an interactive DMB broadcast service through a video phone call using a DMB terminal according to a third embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

100: satellite DMB broadcasting center 102: DMB transmitter

104: DMB satellite 106: DMB terminal

108: wireless access network 110: base station transmitter

112: base station controller 114: mobile communication switching center

116: home location register 118: visitor location register

120: SMS center 122: DMB receiving end

200, 400: search unit 202: message request unit

204: message receiving unit 206, 406, 506: broadcasting control unit

402: DMB signal receiver 404: DMB signal receiver

500: image data receiving unit 502: image reproduction control unit

504: Image DMB signal generation unit

The present invention relates to a method and system for providing an interactive DMB broadcasting service using a DMMB terminal. More specifically, the DMB terminal connected to a channel capable of two-way broadcasting among the currently broadcast DMB broadcasts is searched, and a short message or a group DMB signal including broadcast information is transmitted to the found DMB terminal and received in response to the broadcast. DMB, which reflects in real time and receives and broadcasts video data with a video call request from a DMB terminal connected to a channel capable of two-way broadcasting among the currently broadcast DMB broadcasts. A method and system for providing an interactive DMB broadcasting service using a terminal.

With the rapid development of information and communication technology, various wireless communication services using a wireless network have been provided. The most basic wireless communication service can be considered a voice call service. Here, the voice call service refers to a service for wirelessly performing a voice call between mobile communication subscribers regardless of time and place. Moreover, in recent years, a wireless Internet service has emerged, which can use the Internet via a wireless communication network even while the mobile subscriber is moving without restriction of a place. Therefore, the mobile subscribers can freely move and talk with the other party anytime and anywhere using the voice call service, as well as various contents (for example, games, chat, securities) after accessing the Internet using the wireless Internet service. , Financial transactions, news, weather, sports, traffic information, etc.) can be provided in various forms such as text, voice, and image.

In addition, with the development of information and communication, IMT-2000 (International Mobile Telecommunication 2000), which is a third generation mobile communication system established by ITU-R as a standard, has been commercialized. IMT-2000 is CDMA 2000 1X, 3X, EV-DO, WCDMA (WideBand CDMA), etc .. It is a service that can provide wireless Internet at a transmission speed of up to 144 Kbps, much faster than the supportable data transfer rate of 14.4 Kbps or 56 Kbps. In particular, by using IMT-2000 service, it is possible to provide various multimedia services (AOD, VOD, etc.) at a faster speed as well as improving existing voice and WAP service quality.

On the other hand, DMB services that provide digital multimedia broadcasting (DMB) using such mobile terminals are in the spotlight, and DMB broadcasting services provide various multimedia data such as video data and audio data. Digitally modulates a broadcast service provided to a fixed terminal or a portable terminal. In other words, high-quality, high-definition broadcasting of CD (CD: Compact Disc) or DVD (DVD: Digital Versatile Disc) level can be provided to DMB terminals or car terminals such as mobile phones and PDAs (PDAs). to be.

Unlike conventional analog broadcasting, the DMB broadcasting service is combined with a mobile communication network and provides an interactive service such as remote purchase, remote medical treatment, and distance education. For example, you can order advertising products that are broadcast on the go, and you can also download your favorite educational programs. In other words, unlike conventional analog broadcasting, the DMB broadcasting service enables a bidirectional service without a separate device, and thus, a multi-directional bidirectional service is required to maximize these advantages.

An object of the present invention is to search for a DM terminal connected to a channel capable of two-way broadcasting among the currently broadcast DM broadcasting, and transmits a short message or a group DMB signal including broadcast information to the found DM terminal and receives a response to the broadcasting. DMB, which reflects in real time and receives and broadcasts video data with a video call request from a DMB terminal connected to a channel capable of two-way broadcasting among the currently broadcast DMB broadcasts. It is to provide a method and system for providing a bidirectional DMB broadcasting service using a terminal.

In order to achieve the above object, a method and system for providing a two-way DMB broadcasting service using a DMB terminal according to the present invention has the following features.

The present invention provides a method for providing an interactive DMB broadcasting service using a DMMB terminal, the method comprising: (a) searching for the DMMB terminal connected to a channel capable of bidirectional broadcasting among currently broadcast DMMB broadcasts; (b) transmitting a group broadcast message including broadcast information to one or more of the DM terminals detected in step (a); (c) receiving a response message written in the DM terminal receiving the group broadcast message in real time; And (d) providing the bidirectional broadcasting by reflecting the contents of the response message received in step (c) in real time. to provide. Here, the group broadcast message and the response message may use a DMB signal or a short message.

In another aspect, the present invention provides a method for providing a two-way DMB broadcasting service through a video phone call using a DMB terminal, (a) a video call request is received from the DMB terminal connected to a channel capable of two-way broadcasting among the currently broadcast DMB broadcasting; Receiving image data photographed using a camera of the DM terminal, if any; (b) converting the image data received in step (a) and reproducing the image on a broadcasting station terminal screen in real time; (c) generating an image DMB signal by compressing and modulating broadcast content including a scene reproduced on the screen of the broadcast station terminal in step (b) into a digital signal; And (d) transmitting the video DMB signal generated in the step (c) in real time. The method provides a bidirectional DMB broadcasting service through a video phone using a DMB terminal.

In another aspect, the present invention, a DMB terminal capable of receiving a DMB signal including a DMB tuner unit, a mobile communication network for providing a mobile communication service to the DMB terminal, and a mobile communication network connected to the mobile communication network to provide a bidirectional DMB broadcasting service to the DMB terminal. A system for providing an interactive DMV broadcasting service using a DMMB terminal, including a satellite DMMB broadcasting center, wherein the satellite DMMB broadcasting center is configured to connect the DMMB terminal connected to a channel capable of bidirectional broadcasting among currently being broadcast DMB broadcasts. Search unit for searching; A message transmitter for transmitting a group broadcast message including broadcast information to at least one DM terminal searched by the searcher; A message receiving unit configured to receive a response message written in the DM terminal receiving the group short message in real time; And a broadcast control unit configured to reflect the contents of the response message received by the message receiver in real time to provide the bidirectional broadcasting. 2. .

In another aspect, the present invention, a DMB terminal capable of receiving a DMB signal including a DMB tuner unit, a mobile communication network for providing a mobile communication service to the DMB terminal, and a mobile communication network connected to the mobile communication network to provide a bidirectional DMB broadcasting service to the DMB terminal. A system for providing a two-way DMB broadcasting service through a video call using a DMB terminal, including a satellite DMB broadcasting center, wherein the satellite DMB broadcasting center is connected to a channel capable of two-way broadcasting among currently being broadcast DMB broadcasts. An image data receiver configured to receive image data photographed using a camera of the DM terminal when a video call request is received from the DM terminal; An image reproduction control unit for converting the image data received by the image data receiving unit and controlling the image data to be reproduced in real time on a broadcasting station terminal screen; An image DMB signal generation unit for generating an image DMB signal by compressing and modulating broadcast content including a scene reproduced on the screen of the broadcasting station terminal into a digital signal; And a broadcast control unit configured to control the real-time transmission of the image DMB signal generated by the image DMB signal generation unit through a video telephone using a DMB terminal.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In addition, in describing the present invention, when a detailed description of a related well-known configuration or function is apparent to those skilled in the art, or it is determined that the subject matter of the present invention may be obscured, the detailed description thereof will be omitted.

1 is a block diagram schematically illustrating a system for providing a bidirectional DMB broadcasting service using a DMMB terminal according to an exemplary embodiment of the present invention.

As shown in FIG. 1, a system for providing a bi-directional DMB broadcasting service using a DMMB terminal according to an exemplary embodiment of the present invention includes a satellite DMB broadcasting center 100, a DMB transmitting terminal 102, a DMB satellite body 104, DMB receiving end 122, mobile communication switching station 114, home location register 116, visitor location register 118, short message center 120, wireless access network 108 and DMB terminal 106 and the like.

The satellite DMB broadcasting center 100 according to the preferred embodiment of the present invention receives a broadcast content from a broadcast program provider (PP), compresses and modulates it into a digital signal, and then uses the DMB satellite body 104 through the Ku-Band band. It serves to transmit to.

The DMB signal transmitted from the satellite DMB broadcasting center 100 is transmitted from the DMB transmitter 102 to the DMB satellite 104 via an air interface. The air interface through which the DMB signal is transmitted is composed of a video channel, an audio channel, and a data channel. Video data of broadcast content is transmitted through a video channel, and audio data is transmitted through an audio channel. Meanwhile, broadcast information data of broadcast content is transmitted through a data channel.

In particular, the satellite DMB broadcasting center 100 according to the preferred embodiment of the present invention is connected to the mobile communication switching station 114 to be described later to provide the interactive DMB broadcasting service to the DM terminal 106 according to the preferred embodiment of the present invention. Function Detailed internal configuration of the satellite DMB broadcasting center 100 according to an exemplary embodiment of the present invention will be described later with reference to FIGS. 2, 4, and 5.

The DMB satellite 104 according to the preferred embodiment of the present invention is seated on a stationary orbit about 36,000 km from the ground and rotates at a speed of 11,000 km per hour, which is the same as the speed of the Earth's rotation. The DMB satellite 104 refers to a device that serves as a relay that receives a DMB signal transmitted from the DMB transmitting terminal 102 and relays the signal to the DMB receiving terminal 122. In general, the DMB satellite 104 comprises four 25 MHz Ku-Band repeaters and 36 25 MHz S-Band repeaters that provide the frequency bands required to transmit DMB signals to the mobile communication system. The DMB satellite 104 transmits an S-Band CDM (CDM) signal and a Ku-Band Time Division Multiple (TDM) signal at the same time. The reason for transmitting the TDM signal in the Ku-Band band is to transmit radio waves. This is because it transmits to a gap filler installed in an underground space, a building, or a dense residential area that is difficult to receive.

DMB receiver 122 according to a preferred embodiment of the present invention is a component included in the mobile communication network for receiving and transmitting the DMB signal transmitted from the DMB satellite 104 to the DMB terminal 106 is a gap filler which is a shadow area repeater (Gap Filler, not shown). That is, the DMB receiving end 122 receives the DMB signal transmitted through the air interface, and transmits the received DMB signal to the mobile communication switching center 114.

In the present invention, the DM terminal 106 is a PDA (Personal Digital Assistant) equipped with a tuner unit capable of receiving DMB signals, a cellular phone, a PCS (Personal Communication Service) phone, a GSM (Global System for Mobile) phone, W Wideband CDMA (CDMA) phones, CDMA-2000 phones, Mobile Broadband System (MBS) phones and the like. That is, the DM terminal 100 refers to a terminal capable of voice call, video call, and data communication with the other party through a mobile communication network and capable of receiving DMB signals transmitted from the DMB satellite body 104. Also, the DM terminal 106 refers to a terminal capable of reading broadcast information data included in a data channel among DMB signals transmitted through a mobile communication network.

In addition, the DMB terminal 106 is connected to the mobile communication network through the wireless access network 108 to provide a voice call function and a video call function to perform a normal voice call and a video call by wireless communication with different DMB terminals. Rather, it refers to a terminal for creating a short message to be transmitted using the provided text writing function and then transmitting the written message to the mobile communication network.

For this purpose, the DMB terminal 106 is a wireless application protocol (WAP), which is an Internet access protocol, a Microsoft Internet Explorer (MIE) based on HTML using an HTTP protocol, and a handheld device transport protocol (HDPT). Protocol), NTT DOKOMO's i-Mode or SK Telecom's 'NATE' to access the Internet via a mobile communication network. Among the Internet connection protocols used in DMB terminal 106, MIE uses a shortened version of HTML, which is abbreviated m-HTML, and in the case of i-Mode, a language called compact HTML (c-HTML) which is a subset of HTML. use.

In addition, the DMB terminal 106 according to an exemplary embodiment of the present invention is a camera (eg, a CCD (Charge Coupled Device) camera) having a high resolution of a high pixel and a miniaturized chip, a high quality image, and high quality audio. A media processing apparatus for processing, a high resolution monitor or liquid crystal screen for outputting high quality images, a program for conducting a video telephone call, and the like.

The wireless access network 108 according to the preferred embodiment of the present invention includes a base station transmitter 110, a base station controller 112 and a repeater (Enhancer: not shown) and supports both synchronous and asynchronous.

Here, in the case of synchronous, the transmitting and receiving base station transmitter will be a base-station transmission system (BTS), and the transmitting and receiving base station controller will be a base station controller (BSC). The Transceiver Subsystem, the transmitting and receiving base station controller will be a Radio Network Controller (RNC). Of course, the wireless access network 108 according to an embodiment of the present invention is not limited thereto, and may include a GSM network other than a CDMA network and an access network of a fourth generation mobile communication system to be implemented in the future.

The base station transmitter 110 is arranged in units of cells, and receives a call request signal from the DM terminal 106 through a traffic channel among signal channels, and receives the received call request signal from the base station controller ( The location registration is performed to determine the location of the DM terminal 106 which is transmitted to the 112 or existing in the cell area under its control. In addition, the base station transmitter 110 is a network endpoint device that is directly connected to the DM terminal 106 by performing baseband signal processing, wired and wireless conversion, and transmission and reception of wireless signals.

For example, when the DM terminal 106 is the receiving side, the base station transmitter 110 determines the position of the DM terminal 106 existing in its cell area, and the base station controller 112 from the mobile communication switching station 114. The call request signal transmitted through the transmission is transmitted to the DM terminal 106 existing in the cell area under its control.

In addition, the base station transmitter 110 may obtain information such as the longitude of the base station transmitter 110 from a GPS (Global Positioning System (not shown)), and the position information of the base station transmitter 110 may be used as a system of a forward link call channel. The parameter message is transmitted to the DM terminal 106. The DM terminal 106 may register new location information by calculating the moving distance of the DM terminal 106 using the location information of the base station transmitter 110 of the cell to which the DM terminal 106 belongs.

Here, the location registration is a processing procedure for notifying the mobile communication switching station 114 of the position, status, identifier, slot period, and other features of the DM terminal 106 by the base station transmitter 110. This is a procedure for effectively calling the DM terminal 106 when the incoming call is to be set to the DM terminal 106. This position registration of the DM terminal 106 may be performed when the DM terminal 106 is powered on or off, when the DM terminal 106 moves between the mobile communication switching stations 114, and the DM terminal 106. It is implemented when the parameter of) changes.

The base station controller 112 controls the base station transmitter 110, and assigns and releases radio channels for the DM terminal 106, controls the transmission output of the DM terminal 106 and the base station transmitter 110, and soft handoff between cells. It performs handoff and hard handoff decision, transcoding and vocoding, GPS clock distribution, operation and maintenance of base station. The base station controller 112 also transmits the subscriber information of the location registered DMB terminal 106 to the mobile communication switching center 114. The base station controller 112 transfers the call request signal transmitted from the DM terminal 106 through the base station transmitter 110 to the mobile switching center 114, and conversely, the base station controller 112 transfers from the mobile switching center 114. And transmits the received call request signal to the DM terminal 106 through the base station transmitter 110.

The mobile switching center 114 according to the preferred embodiment of the present invention performs basic and additional service processing, incoming and outgoing call processing of subscribers, location registration procedure and handoff procedure processing, interworking with other networks, and the like. The mobile communication switching center 114 of the IS-95 / A / B / C system operates an access switching subsystem (ASS) that performs distributed call processing, an INS (interconnection network subsystem) that performs centralized call processing, and operation. And a subsystem such as a Central Control Subsystem (CCS) in charge of the centralization of maintenance, and a Location Registration Subsystem (LRS) that performs storage and management of information on mobile subscribers.

In addition, the mobile switching center 114 for the third and fourth generation may include an Asynchronous Transfer Mode (ATM) switch (not shown), which increases the transmission speed and the efficiency of line use by packet transmission per cell. Let's do it.

When the mobile communication switching station 114 registers the location of the DM terminal 106 through the wireless access network 108, temporarily stores subscriber information of the DM terminal 106 in the visitor location register 118, and then stores the home location. The registrar 116 requests the registration of the DM terminal 106.

The home location register (HLR) 116 according to a preferred embodiment of the present invention receives the location information of the DM terminal 106 from the visitor location register 118 to register registration, delete registration, location confirmation, and the like. Perform the function. In addition, the home location register 116 stores profile information of the DM terminal 106 waiting for a call. Here, the profile information refers to a mobile identification number (MIN), an electronic serial number (ESN), and / or subscribed mobile communication service information of the DM terminal 106.

The visitor location register (VLR) 118 according to the preferred embodiment of the present invention receives the location information of the visited subscriber where the location information registration is performed, and in case of transmission from the transmitting DMB terminal, receiving to the receiving DMB terminal. In this case, the subscriber data is received from the mobile telecommunication switching center 114 and stored. When the DM terminal 106 performs location information registration, the visitor location register 118 temporarily stores subscriber information and notifies the home location register 116 to the DM terminal 106 from the home location register 116. While receiving and managing a copy of the terminal identification number, the terminal unique number and service information of the DMB terminal 106 performs a function to utilize the position control, call processing, external operation processing.

The short message center 120 according to the preferred embodiment of the present invention has a function of being connected to the mobile switching center 114 to deliver a short message to mobile subscribers. The short message center 120 allows a user to send and receive numbers and letters in both directions using a mobile communication network between various text communication systems (PC communication system, Internet server system, DM terminal, etc.) and subscribers. Of course, the mobile subscriber may send a text message through the transmitting DMMB terminal. In addition, the short message center 120 according to the preferred embodiment of the present invention, when receiving the group short message transmission request from the satellite DMB broadcasting center 100 through the mobile communication switching station 114, the designated single short message is designated one. The transmission to the DM terminal 106 above. In addition, when receiving the response short message transmission request from the DM terminal 106 according to the preferred embodiment of the present invention transmits the requested short message through the mobile communication switching station 114 to the satellite DMB broadcasting center (100).

2 is a block diagram schematically showing the internal configuration of the satellite DMB broadcasting center 100 according to the first embodiment of the present invention.

As shown in FIG. 2, the satellite DMB broadcasting center 100 according to the first preferred embodiment of the present invention includes a search unit 200, a message request unit 202, a message receiver 204, and a broadcast control unit 206. And the like.

The searching unit 200 according to the first exemplary embodiment of the present invention performs a function of searching for the DM terminal 106 connected to a channel capable of bidirectional broadcasting among the DM broadcasting currently being broadcast.

The message request unit 202 according to the first preferred embodiment of the present invention requests a real-time request for sending a group short message to one or more DM terminals 106 searched by the search unit 200 according to the first preferred embodiment of the present invention. It performs the function. When the short message center 120 according to the first preferred embodiment of the present invention receives such a group short message transmission request from the message requesting unit 202 through the mobile communication switching station 114, the requested short message is sent. The search unit 200 according to the first embodiment transmits the searched to the DM terminal 106. Here, the group short message according to the first embodiment of the present invention may include viewer questionnaire information, opinion list information, or rank selection information. 3 is an exemplary screen illustrating an example of a group short message according to a first preferred embodiment of the present invention.

The message receiving unit 204 according to the first preferred embodiment of the present invention performs a function of receiving in real time a response short message written in the DM terminal 106 that has received the group short message according to the first preferred embodiment of the present invention. do. That is, the short message center 120 according to the first preferred embodiment of the present invention receives the short message request from the DM terminal 106 that has received the group short message. The message is transmitted to the message receiving unit 204.

The broadcast control unit 206 according to the first preferred embodiment of the present invention reflects the contents of the response short message received by the message receiving unit 204 according to the first preferred embodiment of the present invention in real time. A function of controlling to provide a bidirectional broadcast according to an embodiment is performed.

4 is a block diagram schematically showing the internal configuration of the satellite DMB broadcasting center 100 according to the second embodiment of the present invention.

As shown in FIG. 4, the satellite DMB broadcasting center 100 according to the second embodiment of the present invention includes a search unit 400, a DMB signal transmitter 402, a DMB signal receiver 404, and a broadcast controller ( 406) and the like.

The search unit 400 according to the second exemplary embodiment of the present invention performs a function of searching for the DM terminal 106 connected to a channel capable of two-way broadcasting among the DM broadcasting currently being broadcast.

The DMB signal transmitter 402 according to the second preferred embodiment of the present invention is a group including broadcast information to one or more DM terminals 106 searched by the searcher 200 according to the second preferred embodiment of the present invention. It transmits the DMB signal. Here, the broadcast information included in the group DMB signal according to the second embodiment of the present invention may include viewer questionnaire information, opinion list information, or rank selection information.

The DMB signal receiving unit 404 according to the second preferred embodiment of the present invention performs a real-time response on the response DMB signal including the response information generated by the DM terminal 106 receiving the group DMB signal according to the second preferred embodiment of the present invention. Perform the function of receiving.

The broadcast control unit 406 according to the second preferred embodiment of the present invention reflects the contents of the response short message received by the DMB signal receiver 404 according to the second preferred embodiment of the present invention in real time. A function of controlling to provide bidirectional broadcasting according to the second embodiment is performed.

The first embodiment described above describes a satellite DMB broadcasting center in the case of interworking with the short message center 120 in order to transmit and receive a message in the form of a short message with the DM terminal 106, and the second embodiment is a DM terminal. And a satellite DMB broadcasting center when transmitting and receiving a message by using a DMB signal.

FIG. 5 is a block diagram schematically illustrating an internal configuration of a satellite DMB broadcasting center 100 that provides an interactive DMB broadcasting service through a video phone call using a DMMB terminal according to the third embodiment of the present invention.

As shown in FIG. 5, the satellite DMB broadcasting center 100 that provides a two-way DMB broadcasting service through a video phone call using a DMB terminal according to a third exemplary embodiment of the present invention includes an image data receiving unit 500 and an image reproduction unit. The controller 502, the image DMB signal generator 504, the broadcast controller 506, and the like may be included.

According to the third exemplary embodiment of the present invention, the image data receiver 500 receives a video call request from a DM terminal 106 connected to a channel capable of bidirectional broadcasting among DM broadcasts currently being broadcast. Receives a function of receiving image data photographed using the camera.

The image reproducing control unit 502 according to the third preferred embodiment of the present invention converts the image data received by the image data receiving unit 500 according to the third preferred embodiment of the present invention to control playback on a broadcasting station terminal screen in real time. Perform the function. For example, when a subscriber makes a video call to a broadcasting station, the broadcasting station may convert the received image data into a small screen or the like.

The image DMB signal generation unit 504 according to the third preferred embodiment of the present invention compresses and modulates the broadcast content including a scene reproduced on the screen of the broadcasting station terminal by the image reproduction control unit 502 into a digital signal to convert the image DMB signal. Performs the function of generating it.

The broadcast control unit 506 according to the third exemplary embodiment of the present invention performs a function of controlling the image DMB signal generated by the image DMB signal generation unit 504 to be transmitted in real time.

FIG. 6 is a flowchart schematically illustrating a process of providing an interactive DMB broadcasting service using the DM terminal 106 according to the first embodiment of the present invention.

First, the search unit 200 of the satellite DMB broadcasting center 100 according to the first exemplary embodiment of the present invention searches for the DMB terminal 106 connected to a channel capable of bidirectional broadcasting among the DMB broadcasts currently being broadcast ( S600). In the message requesting unit 202 according to the first preferred embodiment of the present invention, the short message center 120 transmits the group short message to the one or more DM terminals 106 retrieved in step S600 through the mobile communication switching station 114. Real time request to (S602).

Next, in the message receiving unit 204 according to the first preferred embodiment of the present invention, the short message center 120 receives the short message generated by the DM terminal 106 that has received the group short message from the short message center 120. In real time through the mobile communication switching station 114 from (S604). The broadcast control unit 206 according to the first exemplary embodiment of the present invention reflects the contents of the response short message received by the message receiving unit 204 in real time and provides bidirectional broadcasting (S606).

FIG. 7 is a flowchart schematically illustrating a process of providing an interactive DMB broadcasting service using the DM terminal 106 according to the second embodiment of the present invention.

First, the search unit 400 of the satellite DMB broadcasting center 100 according to the second exemplary embodiment of the present invention searches for the DMB terminal 106 connected to a channel capable of bidirectional broadcasting among the DMB broadcasts currently being broadcast ( S700). In the DMB signal transmission unit 402 according to the second preferred embodiment of the present invention, a group including broadcast information to one or more DM terminals 106 searched by the search unit 400 according to the second preferred embodiment of the present invention. The DMB signal is transmitted (S702).

Next, the DMB signal receiving unit 404 according to the second exemplary embodiment of the present invention receives the response DMB signal including the response information created by the DM terminal 106 which has received the above-described group DMB signal in real time (S704). . The broadcast control unit 406 according to the second embodiment of the present invention provides the interactive broadcast by reflecting the contents of the response information included in the response DMB signal received by the DMB signal receiving unit 404 in real time (S706).

8 is a flowchart schematically illustrating a process of providing an interactive DMB broadcast service through a video phone call using a DMB terminal according to a third embodiment of the present invention.

First, in the image data receiver 500 of the satellite DMB broadcasting center 100 according to the third exemplary embodiment of the present invention, a video call is performed in the DMB terminal 106 connected to a channel capable of two-way broadcasting among the DMB broadcasts currently being broadcast. If there is a request, the image data photographed using the camera of the DM terminal 106 is received (S800). The image reproducing control unit 502 according to the third exemplary embodiment of the present invention converts the image data received by the image data receiving unit 500 to reproduce the image data on the broadcasting station terminal screen in real time (S802).

Next, the image DMB signal generation unit 504 according to the third embodiment of the present invention generates an image DMB signal by compressing and modulating broadcast content including a scene reproduced on a broadcast station terminal screen into a digital signal (S804). ). The broadcast control unit 506 according to the third embodiment of the present invention transmits the image DMB signal generated by the image DMB signal generation unit 504 in real time and provides bidirectional broadcasting (S806).

The above description is merely illustrative of the present invention, and those skilled in the art to which the present invention pertains may various modifications without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed herein are not intended to limit the present invention but to describe the present invention, and the spirit and scope of the present invention are not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all the technologies within the equivalent scope should be interpreted as being included in the scope of the present invention.

By using the present invention, it is possible to induce the viewer's attention by enabling two-way broadcasting that allows the participation of viewers in the satellite DMB broadcasting service, real-time performance is possible due to the nature of the DMMB, and enables interactive broadcasting regardless of place. It is effective. Therefore, there is an advantage that the mobile phone operator can generate additional revenue by increasing the volume of voice and data calls.

Claims (11)

In the method for providing a two-way DMB broadcasting service using a DMMB terminal, (a) searching for the DM terminal connected to a channel capable of bidirectional broadcasting among DM broadcasting currently being broadcast; (b) transmitting a group broadcast message including broadcast information to one or more of the DM terminals detected in step (a); (c) receiving a response message written in the DM terminal receiving the group broadcast message in real time; And (d) providing the interactive broadcast by reflecting the contents of the response message received in step (c) in real time; Method for providing a two-way DMB broadcasting service using a DMMB terminal comprising a. The method of claim 1, And the broadcast information includes viewer questionnaire information, opinion list information, or ranking selection information. The method of claim 1, And the group broadcast message and the response message are transmitted and received by a DMB signal. The method of claim 1, And the group broadcast message and the response message are transmitted / received as a short message via a short message center. In the method for providing a two-way DMB broadcasting service through a video call using a DMB terminal, (a) receiving image data photographed using a camera of the DM terminal when there is a video call request from the DM terminal connected to a channel capable of bidirectional broadcasting among the DM broadcasting currently being broadcast; (b) converting the image data received in step (a) and reproducing the image on a broadcasting station terminal screen in real time; (c) generating an image DMB signal by compressing and modulating broadcast content including a scene reproduced on the screen of the broadcast station terminal in step (b) into a digital signal; And (d) transmitting the image DMB signal generated in step (c) in real time Method for providing a two-way DMB broadcasting service through a video call using a DMB terminal comprising a. A DMB terminal capable of receiving DMB signals including a DMMB tuner unit, a mobile communication network providing a mobile communication service to the DMMB terminal, and a satellite DMMB broadcasting center connected to the mobile communication network to provide a bidirectional DMMB broadcasting service to the DMMB terminal; In the system for providing a two-way DMB broadcasting service using a DMB terminal, The satellite DMB broadcasting center, A search unit for searching for the DM terminal connected to a channel capable of bidirectional broadcasting among the DM broadcasting currently being broadcast; A message transmitter for transmitting a group broadcast message including broadcast information to at least one DM terminal searched by the searcher; A message receiver configured to receive in real time a response message written in the DM terminal receiving the group broadcast message; And Broadcast control unit for controlling to provide the interactive broadcast by reflecting the contents of the response message received from the message receiving unit in real time System for providing a two-way DMB broadcasting service using a DMMB terminal comprising a. The method of claim 6, And the message transmitter transmits the group broadcast message to the DM terminal using a DMB signal. The method of claim 7, wherein And the DMB terminal transmits the response message to the satellite DMB broadcasting center by the DMB signal. The method of claim 6, In response to the message transmitter and the message receiver, when receiving a group broadcast message transmission request from the message transmitter through a mobile communication exchange, the group broadcast message is written in a short message format and then sent to the DM terminal searched by the searcher. A short message center for transmitting the response message to the message receiver when receiving the response message written in the short message format from the DM terminal. System for providing a two-way DMB broadcasting service using a DM terminal, characterized in that further comprising. The method of claim 6, And the broadcast information comprises viewer questionnaire information, opinion list information, or rank selection information. A DMB terminal capable of receiving DMB signals including a DMMB tuner unit, a mobile communication network providing a mobile communication service to the DMMB terminal, and a satellite DMMB broadcasting center connected to the mobile communication network to provide a bidirectional DMMB broadcasting service to the DMMB terminal; In the system for providing a two-way DMB broadcasting service through a video telephone using a DMB terminal, The satellite DMB broadcasting center, An image data receiver configured to receive image data photographed using a camera of the DM terminal when a video call request is received from the DM terminal connected to a channel capable of bidirectional broadcasting among currently broadcast DM broadcasts; An image reproduction control unit for converting the image data received by the image data receiving unit and controlling the image data to be reproduced in real time on a broadcasting station terminal screen; An image DMB signal generation unit for generating an image DMB signal by compressing and modulating broadcast content including a scene reproduced on the screen of the broadcasting station terminal into a digital signal; And A broadcast control unit controlling to transmit the image DMB signal generated by the image DMB signal generation unit in real time; System for providing a two-way DMB broadcasting service through a video phone call using a DMMB terminal comprising a.

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