KR100798409B1 - Terminal and method for supplying dmb bidirectional service via communication device - Google Patents

Abstract

The present invention relates to a terminal and a method for providing a DMB bidirectional service through a communication terminal. More specifically, the terminal includes a short distance communication unit for communication with the communication terminal, and the DMB signal and the DMB received through a user interface. Display the additional service information included in the signal on the screen, receive a predetermined input signal corresponding to the additional service information, and transmit a service request signal to the communication terminal through the short range communication unit according to the predetermined input signal through a bidirectional service processor. Transmits the data to a predetermined server providing the DMB bidirectional service.

DMB, two-way service, mobile phone, mobile communication, local area communication

Description

TERMINAL AND METHOD FOR SUPPLYING DMB BIDIRECTIONAL SERVICE VIA COMMUNICATION DEVICE}

1 is a diagram illustrating a network for providing a DMB bidirectional service by interworking a terminal and a communication terminal according to an embodiment of the present invention.

2 is a block diagram illustrating an internal configuration of a terminal and a communication terminal according to an embodiment of the present invention.

3 is a diagram illustrating an example of using a DMB bidirectional service in a terminal according to an embodiment of the present invention.

4 is a diagram illustrating another example of using a DMB bidirectional service in a terminal according to an embodiment of the present invention.

5 is a flowchart illustrating a method for providing a DMB bidirectional service by interworking a terminal and a communication terminal according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

130: content server 140: broadcasting station system

210: terminal 211: DMB signal receiving unit

212: first local area communication unit 213: user interface

214: interactive service processing unit 215: content output unit

216: memory 220: communication terminal

221: second local area communication unit 222: bidirectional service unit

The present invention relates to a terminal and a method for providing a DMB bidirectional service, and more particularly, to provide a DMB bidirectional service during viewing of DMB signals, such as event participation and content download, using a communication terminal capable of communicating with a content server through a mobile communication network. It relates to a terminal and a method.

In general, digital broadcasting has been rapidly spread to Europe, Japan, Asia, and Africa since the world's first DirecTV in 1994, and can be viewed anywhere in the world.

Digital broadcasting is a method of compressing video / audio / additional data and transmitting it through satellites according to MPEG-2 standard, and it has wide coverage area, unique broadcasting quality regardless of region, and broadcasting network regardless of other transmission media. It is activated by economics of construction and simplicity of channel, and is mainly led by broadcaster.

In general, a terminal receiving a DMB signal cannot provide a bidirectional service corresponding to the DMB signal. That is, the terminal receiving only the DMB signal could not request the desired content to the predetermined server or participate in the event provided by the DMB signal while receiving the DMB signal. As described above, the DMB signal is transmitted only to the downlink from the repeater or the satellite, and in order to use an additional service for the DMB signal, the related company did not provide the uplink due to technical problems. For example, in a conventional DMB signal receiving terminal, a user watching a baseball relay channel cannot transmit an uplink signal for participating in an additional service event that matches a game result. Also, as another example, while watching a music video of a specific singer, the user may not perform a differentiated service request to obtain desired information such as a picture of the singer, a main article, and the like. Accordingly, there is a need for a DMB bidirectional service for providing a differentiated service for each viewer and providing an additional service for receiving an uplink signal from the viewer and providing an event.

The present invention has been made to solve the problems of the prior art as described above, an object of the present invention is to transmit a signal for a bidirectional service to a predetermined content server through a communication terminal capable of short-range communication with a terminal capable of DMB service The present invention provides a terminal and a method capable of providing a DMB interactive service.

Another object of the present invention is to provide a differentiated additional service desired by the viewer.

In order to achieve the above object and to solve the above problems of the prior art, a terminal providing a DMB bidirectional service through a communication terminal according to the present invention is a short-range communication unit for communication with the communication terminal, the received DMB signal and the A user interface for displaying additional service information included in a DMB signal on a screen and receiving a predetermined input signal corresponding to the additional service information, and a service request signal to the communication terminal through the short range communication unit according to the predetermined input signal. It includes a two-way service processing unit for processing to transmit to a predetermined server providing the DMB bi-directional service.

The terminal according to an embodiment of the present invention further includes a content output unit for processing to output the content transmitted through the communication terminal from the predetermined server to the output device in response to the service request signal.

The additional service information according to an embodiment of the present invention may be any one of bidirectional URL information downloaded through a DMB channel such as URL of BIFS (Binary Format for Scenes) or DGI of BWS (Broadcast Website Service).

The terminal according to an embodiment of the present invention further includes a memory for storing the additional service information, wherein the additional service information stored in the memory is independently provided with a time difference from the reception of the DMB signal. do.

The short-range communication unit according to an embodiment of the present invention communication at least one of the USB communication module, UART communication module, Bluetooth communication module, RFID communication module, Zigbee communication module, UWB (Ultra WideBand) communication module, WLAN communication module It characterized in that it comprises a module.

The terminal according to an embodiment of the present invention is characterized in that the DMB signal receiving terminal.

The communication terminal according to an embodiment of the present invention transmits to the predetermined server through a mobile communication network according to a short range communication unit for communicating with the DMB signal receiving terminal and a service request signal from the DMB signal receiving terminal through the short range communication unit. It characterized in that it comprises a bidirectional service unit for transmitting a signal for bidirectional communication.

According to an embodiment of the present invention, the communication terminal authenticates the DMB signal receiving terminal by referring to the memory when receiving the service request signal including the memory for storing the unique information for terminal authentication and the unique information. It further comprises a terminal authentication unit.

The communication terminal according to an embodiment of the present invention further receives a content transmitted from the predetermined server in response to the signal for the bidirectional communication, the content delivery unit for delivering to the DMB signal receiving terminal through the short-range communication unit It is characterized by including.

The communication terminal according to an embodiment of the present invention is a mobile communication terminal, PSTN terminal, VoIP, SIP, Megaco, PDA (Personal Digital Assistant), cellular phone, PCS (Personal Communication Service) phone, hand-held PC (Hand-Held) PC), CDMA-2000 (1X, 3X) phones, WCDMA (Wideband CDMA) phones, Dual Band / Dual Mode phones, GSM (Global Standard for Mobile) phones, Mobile Broadband System (MBS) phones And at least one of satellite / terrestrial digital multimedia broadband reception system (DMB) phones.

In the operation method of the DMB signal receiving terminal according to an embodiment of the present invention, receiving and displaying the received DMB signal and the additional service information included in the DMB signal on the screen, the predetermined input corresponding to the additional service information And receiving a signal and transmitting a service request signal according to the predetermined input signal to the communication terminal through a short range communication method to request a DMB bidirectional service from a predetermined server.

A method of operating a DMB signal receiving terminal according to an embodiment of the present invention comprises the steps of receiving content transmitted through the communication terminal from the predetermined server in response to the service request signal, and outputting the received content to the device; It further comprises the step of displaying.

A method of operating a DMB signal receiving terminal according to an embodiment of the present invention includes storing the additional service information in a predetermined memory, and independently of the additional service information stored in the predetermined memory with a time difference from receiving the DMB signal. It further comprises providing a step.

A method of operating a communication terminal according to an embodiment of the present invention includes receiving a service request signal from the DMB signal receiving terminal in a short range communication method, and performing bidirectional communication to the predetermined server through a mobile communication network according to the service request signal. And transmitting the signal.

In accordance with an aspect of the present invention, there is provided a method of operating a communication terminal, the method comprising receiving content transmitted from the predetermined server in response to a signal for bidirectional communication, and transmitting the content to the DMB signal receiving terminal through the short range communication method. Delivering the content further.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings and the contents described in the accompanying drawings, but the present invention is not limited or limited to the embodiments.

1 is a diagram illustrating a network for providing a DMB bidirectional service by interworking with a DMB signal receiving terminal 110 and a communication terminal 120 according to an embodiment of the present invention.

Referring to FIG. 1, the terminal 110 is a terminal capable of receiving DMB service by receiving a satellite DMB signal or a terrestrial DMB signal provided from the broadcasting station system 140 through a DMB satellite or a repeater. In the present invention, even when the terminal 110 cannot provide a bidirectional service in cooperation with the broadcasting station system 140 or the content server 130 associated with the broadcasting station system 140, the terminal 110 may not be able to provide the interactive terminal 120. The present invention proposes an apparatus and a method capable of providing a DMB bidirectional service through the terminal 110.

That is, the DMB signal according to the present invention includes various additional service information for the DMB bidirectional service, and the terminal 110 provides the DMB bidirectional service according to the additional service information to the viewer. A predetermined signal may be transmitted to the content server 130 through 120. In addition, the terminal 110 may receive various contents from the content server 130 through the communication terminal 120 in response to the predetermined signal transmitted to the content server 130.

The additional service information includes information related to a service provided with the DMB signal, such as Binary Format for Scenes (BIFS) or Broadcast Website Service (BWS) information.

BIFS is often referred to as a two-way real-time video data service or linked data broadcast implementation technology. As an example of the BIFS, there is an additional service such as a 'match game' provided with a DMB signal of a soccer game. If the viewer clicks on the 'match game', the screen is switched to the detailed screen related to the event. In addition, another example of the BIFS is an interactive program guide service using still images or graphic data, an interlocking service for purchasing related items during viewing, and an interactive service reflecting viewers' opinions.

In addition, the BWS is a service for directly relaying various contents of the Internet site. For example, when accessing a DMB channel providing stock information, the stock status provided by the website associated with the DMB channel is received in real time through the communication terminal 220 through the communication terminal 220.

According to the present invention, the terminal 110 includes a DMB receiving apparatus 111, a notebook 112, a portable multimedia player (PMP) 113, a portable DMB receiving TV (not shown), and the like, mounted on an automobile. . More specifically, the terminal 110 has a built-in DMB receiving apparatus and receives a DMB signal from the broadcasting station system 140 through a DMB satellite or a repeater. The DMB signal includes various additional service information for implementing a currently provided DMB bidirectional service, and the terminal 110 displays the DMB signal and the additional service information on a screen.

Accordingly, the viewer performs a predetermined input required by the additional service information to participate in the additional service while viewing the DMB signal. For example, in order to use the additional service of 'baseball result prediction' displayed together with the baseball relay to watch, the viewer may input the baseball result predicted through the input device of the terminal 110. Accordingly, the terminal 110 transmits the baseball result input from the viewer to the communication terminal 120 in a short range communication method.

To this end, the terminal 110 and the communication terminal 120 should be provided with a short-range communication module that can interoperate with each other. The short range communication module may perform wired / wireless short range communication, for example, a USB communication module, a UART communication module, a Bluetooth communication module, an RFID communication module, a Zigbee communication module, a UWB (Ultra WideBand) communication module, and a WLAN communication. Modules and the like can be used.

The communication terminal 120 receiving the baseball result in the short range communication method may transmit the predicted baseball result to the content server 130 associated with the broadcasting station system 140 through a mobile communication network. If the additional service of 'baseball result prediction' is a service that provides a prize prepared in advance to a user who has matched the result, the communication terminal 120 adds the information of the user or the unique information of the communication terminal 120. Can also be sent.

The content server 130 may respond according to a predetermined signal transmitted from the communication terminal 120 to the content server 130. For example, while watching a music video of a specific singer, the viewer may use an additional service for requesting image data for the singer through the communication terminal 120. At this time, in order to request the image data, the communication terminal 120 receives a request from the terminal 110, the predetermined signal according to the request and the unique information of the communication terminal 120 to the content server Send to 130. Accordingly, the content server 130 may receive the request and transmit the image data of the artist to the communication terminal 120 with reference to the unique information. The communication terminal 120 receiving the image data transmits the image data to the terminal 110 maintaining the short range communication.

As a result, the terminal 110 and the communication terminal 120 according to the present invention provide a differentiated additional service desired by the viewer by providing a DMB interactive service to the viewer, and seek various developments of the content business. Using may cause various interests to viewers.

In the present invention, a mobile communication terminal will be described as an example of the communication terminal 120, but the communication terminal is not only the mobile communication terminal but also a PSTN terminal, VoIP, SIP, Megaco, PDA (Personal Digital Assistant), cellular phone, Personal Communication Service (PCS) Phone, Hand-Held PC, CDMA-2000 (1X, 3X) Phone, Wideband CDMA Phone, Dual Band / Dual Mode Phone, GSM (Global Standard for Mobile) phones, Mobile Broadband System (MBS) phones, and satellite / terrestrial digital multimedia broadband reception system (DMB) phones may be used. That is, the communication terminal 120 may use any terminal capable of communicating with a server located at a remote location through a communication network.

2 is a block diagram showing the internal configuration of the terminal 210 and the communication terminal 220 according to an embodiment of the present invention.

First, the terminal 210 includes a DMB signal receiver 211, a first local area communication unit 212, a user interface 213, an interactive service processor 214, a content output unit 215, and a memory 216. do. In addition, the communication terminal 220 which relays the communication with the content server 130 in cooperation with the terminal 210 includes a second local area communication unit 221 and a bidirectional service unit 222.

More specifically, the DMB signal receiving unit 211 receives a DMB signal from the broadcasting station system 140 through a DMB satellite or repeater. That is, the DMB signal receiving unit 211 includes a receiving device capable of receiving a terrestrial DMB or satellite DMB, and in addition to receiving the DMB signal, may perform a download service of data and a location signal for calculating location information. Can be.

The first local area communication unit 212 is a configuration means for performing local area communication with the second local area communication unit 221 of the communication terminal 220, a USB communication module, UART communication module, Bluetooth communication module, RFID communication module, A communication module may include at least one of a Zigbee communication module, a UWB (Ultra WideBand) communication module, and a WLAN communication module.

The user interface 213 displays a received DMB signal and additional service information included in the DMB signal on a screen, and receives a predetermined input signal corresponding to the additional service information. More specifically, the user interface 213 is an interfacing means for informing the user of information processed in the terminal 210 or for converting a command input from the user into a signal that the terminal 210 can process. . That is, the user interface 213 may include an LCD for displaying the DMB signal and the additional service information, a keypad for receiving the input signal, a touch screen, a voice recognition module, and a hot key.

The bidirectional service processing unit 214 transmits a service request signal to the communication terminal 220 through the first local area communication unit 212 according to the predetermined input signal to the content server 130 to provide a DMB bidirectional service. Process to send. More specifically, when receiving the predetermined input signal, the bidirectional service processing unit 214 generates the service request signal by converting the predetermined input signal into data for short-range communication. Accordingly, the terminal 210 transmits the generated service request signal to the communication terminal 220 through the first local area communication unit 212, and the communication terminal 220 processes the content such that the DMB bidirectional service is processed. The server 130 transmits the received service request signal.

As a result, in response to the additional service information included in the DMB signal, the viewer may transmit a predetermined input signal to the content server 130. That is, the viewer may use the DMB bidirectional service through the interworking with the communication terminal 220 even in the terminal 210 capable of only receiving the DMB signal.

In addition, the terminal 210 outputs the predetermined content received from the content server 130 through the communication terminal 220 as a response to the service request signal transmitted to the content server 130. It may further include an output unit 215. More specifically, the terminal 210 may not only output a DMB signal by driving a predetermined application, but also output various contents such as a flash file, a video file, an image file, and a text file. In addition, the application for driving the content output unit 215 may be installed after downloading from a predetermined server through a wired / wireless communication network.

In addition, the terminal 210 may further include the memory 216 to store the additional service information. When the additional service information is stored in the memory 216, the additional service information may be independently provided with a predetermined time difference from the reception of the DMB signal. That is, if the DMB signal is an important broadcast that must be watched in real time, for example, if it is a real time broadcast such as a world cup live broadcast, the user stores the additional service information included in the current DMB signal in the memory 216, and The DMB interactive service may be used by checking the supplementary service information stored in the memory 216 at a specific time period (for example, half time between pre and post games) during the termination of the real time broadcast or the viewing of the real time broadcast.

3 is a diagram illustrating an example of using the DMB bidirectional service in the terminal 210 according to an embodiment of the present invention. 3 illustrates a portable media player (PMP) 300 for bidirectional communication with a content server 130 located at a remote location as an example of the terminal 210.

As shown in FIG. 3, the viewer checks additional service information displayed at the bottom of the screen together with watching the baseball game. The additional service information in FIG. 3 is questionnaire information that matches the winning team for the current game. That is, the viewer may push the number '1' with the keypad when the home team is expected to win, or input the number '2' with the keypad when the away team is expected to win. According to the viewer's input, the PMP 300 processes the input number into a signal for short-range communication and transmits it to the communication terminal 220 using a short-range communication method. Thus, the communication terminal 220 transmits the signal for the input number to the content server 130. As a result, the content server 130 may use the statistical information for predicting the winning team of the current baseball game by using the prediction of the game result from the viewers.

4 is a diagram illustrating another example of using the DMB bidirectional service in the terminal 210 according to an embodiment of the present invention. In FIG. 4, the PMP 400 for bidirectional communication with the remote content server 130 will be described as another example of the terminal 210.

As shown in FIG. 4, the viewer checks the additional service information displayed at the bottom of the screen together with the viewing of the music video. The additional service information in FIG. 4 is information for 'providing image data' associated with the singer who is currently appearing in the music video. For example, the viewer clicks the additional service information displayed on the screen to check the childhood picture of the singer while watching the music video, or clicks the 'confirm' button on the keypad. Accordingly, the PMP 400 generates a service request signal corresponding to the input signal of the user and transmits the service request signal to the communication terminal 220 through a short range communication method, and the communication terminal 220 transmits the service request signal to a content. The server 130 requests the content (the image data of the artist). At this time, the communication terminal 220 further transmits unique information such as a phone number of the terminal 210, and the content server 130 provides the image data to the communication terminal 220 according to the unique information. do. The communication terminal 220 transmits the received image data to the PMP 400 through the short range communication method. As a result, the PMP 400 may provide the DMB bidirectional service to a viewer by using the communication terminal 220 even when direct communication with the content server 130 is impossible.

5 is a flowchart illustrating a method for providing a DMB bidirectional service by interworking a DMB signal receiving terminal and a communication terminal 220 according to an embodiment of the present invention.

In FIG. 5, as an example of the terminal 210, a DMB bidirectional service method provided through a DMB signal receiving terminal capable of receiving only DMB signals will be described. However, this is only provided to help a more general understanding of the present invention, the present invention is not limited to the above embodiments, those skilled in the art to which the present invention various modifications and variations from the description of the present invention This is possible. That is, the above-described DMB dedicated terminal as an example, similar devices and methods can be applied to all the terminals that provide a multimedia service that requires authentication, all of the specific terminals that do not attempt to authenticate directly with a remote source. It can be easily modified and modified by those skilled in the art.

Referring to FIG. 5, in step 501, the DMB signal receiving terminal receives a DMB signal transmitted from the broadcasting station system 140 and additional service information associated with the DMB signal through a DMB satellite or a repeater, and outputs an output device such as an LCD. Display through. Next, in step 502, the DMB signal receiving terminal receives a predetermined input signal from a viewer according to the displayed DMB signal and the additional service information. The predetermined input signal may be generated through input means such as a touch screen, a keypad, a hot key, a voice recognition module, and the like provided in the DMB signal receiving terminal.

Upon receiving the predetermined input signal, the DMB signal receiving terminal generates a service request signal based on the predetermined input signal in step 503. In addition, the DMB signal receiving terminal transmits the generated service request signal to the communication terminal 220 through a short range communication method. The service request signal may be a signal for requesting predetermined content as the response signal, as well as a signal that does not require a response signal such as a survey associated with the DMB signal.

In step 504, the communication terminal 220 receiving the service request signal transmits the received service request signal to a predetermined server. For example, the predetermined server may be a research server for the survey or a content server for providing predetermined content. In addition, the server may be a web server for providing real-time information provided as a web page.

If the service request signal is a signal for requesting predetermined content from the server, in step 504, the communication terminal 220 may further transmit unique information such as a phone number and user information. Accordingly, in step 505, the communication terminal 220 receives predetermined content as a response to the service request signal from the server, and transmits the received content to the DMB signal receiving terminal through the short range communication method. . Accordingly, the DMB signal receiving terminal may output the delivered content through a predetermined output device in step 506.

For example, the DMB signal receiving terminal may store the additional service information received with the DMB signal in the memory 216. In this case, the viewer may read and use the additional service information provided from the memory 216 independently of the reception of the DMB signal. For example, a viewer may store the additional service information in the memory 216 and later discuss it with an acquaintance in order to transmit a rating for the currently viewed broadcast to the server. Can transmit In this case, there is an advantage that the viewer can use the additional service information even after the current broadcast is terminated.

As a result, the DMB interactive service using the DMB signal receiving terminal and the communication terminal 220 according to the present invention can not only provide a differentiated additional service desired by the viewer, but also can develop a content business related to the DMB. In addition, due to the call charges resulting from the use of the communication channel using the communication terminal 220, the communication company may not only improve profits but also provide various interests to the viewer through the provision of various additional services.

The functions used in the methods and apparatus disclosed herein can be embodied as computer readable code on a computer readable recording medium. The computer-readable recording medium may include program instructions, data files, data structures, etc. alone or in combination. The media may be those specially designed and constructed for the purposes of the present invention, or they may be of the kind well-known and available to those having skill in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical recording media such as CD-ROMs, DVDs, magnetic-optical media such as floppy disks, and ROM, RAM, flash memory, and the like. Hardware devices specifically configured to store and execute the same program instructions are included. The medium may be a transmission medium such as an optical or metal wire, a waveguide, or the like including a carrier wave for transmitting a signal specifying a program command, a data structure, or the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like.

As described above, the present invention has been described by specific embodiments such as specific components and the like, but the embodiments and the drawings are provided only to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments. For those skilled in the art, various modifications and variations are possible from such description.

Therefore, the spirit of the present invention should not be limited to the described embodiments, and all the things that are equivalent to or equivalent to the claims as well as the following claims will belong to the scope of the present invention. .

In the terminal and method according to the present invention, a DMB bidirectional service can be provided by transmitting a predetermined signal for bidirectional service to a content server through a communication terminal capable of short-range communication.

In addition, according to the terminal and the method according to the present invention, by providing a differentiated additional service desired by the viewer, not only the development of the content business, but also the user side may cause interest due to the use of various additional services.

Claims (16)

A short range communication unit which receives a DMB signal from a content server via a communication terminal; A user interface for displaying additional service information included in the received DMB signal on a screen and receiving an input signal corresponding to the additional service information; A bidirectional service processor configured to transmit a service request signal generated according to the reception of the input signal to the content server via the communication terminal; And Content output unit for outputting the content delivered from the content server via the communication terminal as a response to the service request signal. Terminal comprising a. delete The method of claim 1, The additional service information is characterized in that any one of the URL of BIFS (Binary Format for Scenes) or the DGI of the Broadcast Website Service (BWS). The method of claim 1, A memory for storing the additional service information More, The additional service information stored in the memory is independently provided with a time difference from the reception of the DMB signal. The method of claim 1, The short range communication unit may include at least one of a USB communication module, a UART communication module, a Bluetooth communication module, an RFID communication module, a Zigbee communication module, a UWB (Ultra WideBand) communication module, and a WLAN communication module. terminal. The method of claim 1, The terminal is a terminal characterized in that the DMB signal receiving terminal. A short range communication unit transmitting a DMB signal from a content server to a DMB signal receiving terminal; A bidirectional service unit configured to transmit the input service request signal to the content server when a service request signal is input from the DMB signal receiving terminal receiving the DMB signal; And Content delivery unit for transmitting the content transmitted from the content server in response to the service request signal to the DMB signal receiving terminal through the local area communication unit Communication terminal comprising a. The method of claim 7, wherein A memory for storing unique information for terminal authentication; And A terminal authentication unit for authenticating the DMB signal receiving terminal with reference to the memory upon receiving the service request signal including the unique information. Communication terminal characterized in that it further comprises. delete The method of claim 7, wherein The communication terminal is a mobile communication terminal, PSTN terminal, VoIP, SIP, Megaco, PDA (Personal Digital Assistant), cellular phone, PCS (Personal Communication Service) phone, Hand-Held PC, CDMA-2000 (1X) , 3X) phones, wideband CDMA (WCDMA) phones, Dual Band / Dual Mode phones, Global Standard for Mobile (GSM) phones, Mobile Broadband System (MBS) phones, and satellite / terrestrial DMB (Digital) Multimedia Broadband Restriction System ting) A communication terminal, characterized in that at least one of the phones. Receiving a DMB signal from a content server via a communication terminal; Displaying additional service information included in the received DMB signal on a screen and receiving an input signal corresponding to the additional service information; Transmitting a service request signal generated according to the reception of the input signal to the content server via the communication terminal; And Outputting content delivered from the content server via the communication terminal in response to the service request signal; Method of operation of the DMB signal receiving terminal comprising a. delete The method of claim 11, Storing the additional service information in a memory; And Independently providing the additional service information stored in the memory with a time difference from receiving the DMB signal. Method of operation of the DMB signal receiving terminal further comprises. Transmitting a DMB signal from a content server to a DMB signal receiving terminal; Transmitting the input service request signal to the content server as a service request signal is input from the DMB signal receiving terminal receiving the DMB signal; And Delivering content transmitted from the content server in response to the service request signal to the DMB signal receiving terminal; Method of operation of a communication terminal comprising a. delete A computer-readable recording medium having recorded thereon a program for performing the method of any one of claims 11, 13 and 14.

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