KR101606796B1 - Mobile terminal and method for controlling broadcast thereof - Google Patents

Abstract

In the present invention, when the broadcast program and the descriptive information about the broadcast program are received, it is determined whether or not a specific part corresponding to the received descriptive information and the received descriptive information match the previously stored broadcast related information, And updates the stored broadcast-related information based on the received description information if the result does not match, and a broadcast control method thereof.

Description

[0001] MOBILE TERMINAL AND METHOD FOR CONTROLLING BROADCAST THEREOF [0002]

The present invention relates to a mobile terminal capable of updating broadcast-related information using explanatory information related to a broadcast program, and a broadcast control method for the same.

The terminal can move And can be divided into a mobile / portable terminal and a stationary terminal depending on whether the mobile terminal is a mobile terminal or a mobile terminal. The mobile terminal can be divided into a handheld terminal and a vehicle mount terminal according to whether the user can directly carry the mobile terminal.

Such a terminal has various functions, for example, in the form of a multimedia device having multiple functions such as photographing and photographing of a moving picture, reproduction of a music or video file, reception of a game and broadcasting, etc. .

In order to support and enhance the functionality of such terminals, it may be considered to improve the structural and / or software parts of the terminal.

In general, a broadcast receiving terminal receives broadcast-related information from a broadcast-related server, and when the received broadcast-related information differs from previously stored broadcast-related information, the broadcast- Can be updated.

However, according to the related art described above, when the broadcast start time / broadcast end time, broadcast time, or broadcast program name of the currently received / outputted broadcast program is substantially changed, unless the broadcast related information reflecting the change is received There is a problem that the changed broadcast related information can not be provided to the user.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a mobile terminal capable of updating previously stored broadcast related information using explanatory information on a currently received broadcast program and a broadcast control method thereof.

Further, the present invention provides a mobile terminal capable of re-receiving new broadcast-related information and updating previously stored broadcast-related information when description information on a currently received broadcast program differs from previously stored broadcast-related information, and a broadcast control method thereof There are other purposes to provide.

A mobile terminal according to an embodiment of the present invention for realizing the above-mentioned object includes a wireless communication unit for receiving broadcast related information; A memory for storing the received broadcast related information; And comparing the received description information with a specific part corresponding to the received description information among the stored broadcast related information when receiving the description information about the broadcast program and the broadcast program through the wireless communication unit, And a controller for updating the stored broadcast related information based on the received description information if the comparison result does not match.

According to another aspect of the present invention, there is provided a broadcast control method for a mobile terminal, including the steps of: receiving broadcast-related information; Storing the received broadcast related information; Receiving a broadcast program and explanatory information on the broadcast program; Comparing whether the specific description corresponding to the received description information matches the received description information among the stored broadcast-related information; And updating the stored broadcast related information based on the received description information if the comparison result does not match.

The effects of the mobile terminal and its broadcasting control method according to at least one embodiment of the present invention configured as described above are as follows.

First, the broadcast-related information can be updated using the description information of the currently received broadcast program, so that broadcast-related information can be updated without receiving a new version of the broadcast-related information from the broadcast-related server.

Second, when the description information of the currently received broadcast program is different from the previously stored broadcast-related information, new broadcast-related information can be requested for updating the broadcast-related information, so that the broadcast-related information reflecting the substantial change is promptly provided to the user .

Hereinafter, a mobile terminal according to the present invention will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

The mobile terminal described in this specification may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), and a navigation device.

However, it will be understood by those skilled in the art that the configuration according to the embodiments described herein may be applied to a fixed terminal such as a digital TV, a desktop computer, and the like, unless the configuration is applicable only to a mobile terminal.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.

The mobile terminal 100 includes a wireless communication unit 110, an audio / video input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, A controller 170, a controller 180, a power supply 190, and the like. The components shown in FIG. 1 are not essential, and a mobile terminal having more or fewer components may be implemented.

Hereinafter, the components will be described in order.

The wireless communication unit 110 may include one or more modules for enabling wireless communication between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and the network in which the mobile terminal 100 is located. For example, the wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short range communication module 114, and a location information module 115 .

The broadcast receiving module 111 receives broadcast signals and / or broadcast-related information from an external broadcast management server through a broadcast channel.

The broadcast channel may include a satellite channel and a terrestrial channel. The broadcast management server may refer to a server for generating and transmitting broadcast signals and / or broadcast related information, or a server for receiving broadcast signals and / or broadcast related information generated by the broadcast management server and transmitting the generated broadcast signals and / or broadcast related information. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and a broadcast signal in which a data broadcast signal is combined with a TV broadcast signal or a radio broadcast signal.

The broadcast-related information may refer to a broadcast channel, a broadcast program, or information related to a broadcast service provider. The broadcast-related information may also be provided through a mobile communication network. In this case, it may be received by the mobile communication module 112.

The broadcast-related information may exist in various forms. For example, an EPG (Electronic Program Guide) of DMB (Digital Multimedia Broadcasting) or an ESG (Electronic Service Guide) of Digital Video Broadcast-Handheld (DVB-H).

For example, the broadcast receiving module 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S), a Media Forward Link Only (DVF-H) And a Digital Broadcasting System (ISDB-T) (Integrated Services Digital Broadcast-Terrestrial). Of course, the broadcast receiving module 111 may be adapted to other broadcasting systems as well as the digital broadcasting system described above.

The broadcast signal and / or broadcast related information received through the broadcast receiving module 111 may be stored in the memory 160.

The mobile communication module 112 transmits and receives radio signals to at least one of a base station, an external terminal, and a server on a mobile communication network. The wireless signal may include various types of data depending on a voice call signal, a video call signal or a text / multimedia message transmission / reception.

The wireless Internet module 113 is a module for wireless Internet access, and may be built in or externally attached to the mobile terminal 100. WLAN (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) and the like can be used as wireless Internet technologies.

The short-range communication module 114 refers to a module for short-range communication. Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee, and the like can be used as a short range communication technology.

The position information module 115 is a module for obtaining the position of the mobile terminal, and a representative example thereof is a Global Position System (GPS) module.

Referring to FIG. 1, an A / V (Audio / Video) input unit 120 is for inputting an audio signal or a video signal, and may include a camera 121 and a microphone 122. The camera 121 processes an image frame such as a still image or moving image obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame can be displayed on the display unit 151. [

The image frame processed by the camera 121 may be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. [ Two or more cameras 121 may be provided depending on the use environment.

The microphone 122 receives an external sound signal through a microphone in a communication mode, a recording mode, a voice recognition mode, or the like, and processes it as electrical voice data. The processed voice data can be converted into a form that can be transmitted to the mobile communication base station through the mobile communication module 112 when the voice data is in the call mode, and output. Various noise reduction algorithms may be implemented in the microphone 122 to remove noise generated in receiving an external sound signal.

The user input unit 130 generates input data for a user to control the operation of the terminal. The user input unit 130 may include a key pad dome switch, a touch pad (static / static), a jog wheel, a jog switch, and the like.

The sensing unit 140 senses the current state of the mobile terminal 100 such as the open / close state of the mobile terminal 100, the position of the mobile terminal 100, the presence or absence of user contact, the orientation of the mobile terminal, And generates a sensing signal for controlling the operation of the mobile terminal 100. For example, when the mobile terminal 100 is in the form of a slide phone, it is possible to sense whether the slide phone is opened or closed. It is also possible to sense the power supply of the power supply unit 190, whether the interface unit 170 is connected to an external device, and the like. Meanwhile, the sensing unit 140 may include a proximity sensor 141.

The output unit 150 is for generating output related to the visual, auditory or tactile sense and includes a display unit 151, an audio output module 152, an alarm unit 153, and a haptic module 154 .

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, when the mobile terminal is in the call mode, a UI (User Interface) or a GUI (Graphic User Interface) associated with a call is displayed. When the mobile terminal 100 is in the video communication mode or the photographing mode, the photographed and / or received video or UI and GUI are displayed.

The display unit 151 may be a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), a flexible display display, and a 3D display.

Some of these displays may be transparent or light transmissive so that they can be seen through. This can be referred to as a transparent display, and a typical example of the transparent display is TOLED (Transparent OLED) and the like. The rear structure of the display unit 151 may also be of a light transmission type. With this structure, the user can see an object located behind the terminal body through the area occupied by the display unit 151 of the terminal body.

There may be two or more display units 151 according to the embodiment of the mobile terminal 100. For example, in the mobile terminal 100, a plurality of display portions may be spaced apart from one another or may be disposed integrally with each other, or may be disposed on different surfaces.

(Hereinafter, referred to as a 'touch screen') in which a display unit 151 and a sensor for sensing a touch operation (hereinafter, referred to as 'touch sensor') form a mutual layer structure, It can also be used as an input device. The touch sensor may have the form of, for example, a touch film, a touch sheet, a touch pad, or the like.

The touch sensor may be configured to convert a change in a pressure applied to a specific portion of the display unit 151 or a capacitance generated in a specific portion of the display unit 151 into an electrical input signal. The touch sensor can be configured to detect not only the position and area to be touched but also the pressure at the time of touch.

If there is a touch input to the touch sensor, the corresponding signal (s) is sent to the touch controller. The touch controller processes the signal (s) and transmits the corresponding data to the controller 180. Thus, the control unit 180 can know which area of the display unit 151 is touched or the like.

Referring to FIG. 1, a proximity sensor 141 may be disposed in an inner region of the mobile terminal or in the vicinity of the touch screen, which is surrounded by the touch screen. The proximity sensor 141 refers to a sensor that detects the presence of an object approaching a predetermined detection surface or an object existing in the vicinity of the detection surface without mechanical contact using an electromagnetic force or an infrared ray. The proximity sensor has a longer life span than the contact sensor and its utilization is also high.

Examples of the proximity sensor 141 include a transmission type photoelectric sensor, a direct reflection type photoelectric sensor, a mirror reflection type photoelectric sensor, a high frequency oscillation type proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor. And to detect the proximity of the pointer by the change of the electric field along the proximity of the pointer when the touch screen is electrostatic. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.

Hereinafter, for convenience of explanation, the act of recognizing that the pointer is positioned on the touch screen while the pointer is not in contact with the touch screen is referred to as "proximity touch & The act of actually touching the pointer on the screen is called "contact touch. &Quot; The position where the pointer is proximately touched on the touch screen means a position where the pointer is vertically corresponding to the touch screen when the pointer is touched.

The proximity sensor 141 detects a proximity touch and a proximity touch pattern (for example, a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, a proximity touch movement state, and the like). Information corresponding to the detected proximity touch operation and the proximity touch pattern may be output on the touch screen.

The audio output module 152 may output audio data received from the wireless communication unit 110 or stored in the memory 160 in a call signal reception mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, The sound output module 152 also outputs sound signals related to functions (e.g., call signal reception sound, message reception sound, etc.) performed in the mobile terminal 100. [ The audio output module 152 may include a receiver, a speaker, a buzzer, and the like.

The alarm unit 153 outputs a signal for notifying the occurrence of an event of the mobile terminal 100. Examples of events that occur in the mobile terminal include call signal reception, message reception, key signal input, touch input, and the like. The alarm unit 153 may output a signal for notifying the occurrence of an event in a form other than the video signal or the audio signal, for example, vibration. The video signal or the audio signal may be output through the display unit 151 or the audio output module 152 so that they may be classified as a part of the alarm unit 153.

The haptic module 154 generates various tactile effects that the user can feel. A typical example of the haptic effect generated by the haptic module 154 is vibration. The intensity and pattern of the vibration generated by the haptic module 154 are controllable. For example, different vibrations may be synthesized and output or sequentially output.

In addition to the vibration, the haptic module 154 may include a pin arrangement vertically moving with respect to the contact skin surface, a spraying force or a suction force of the air through the injection port or the suction port, a touch on the skin surface, contact with an electrode, And various tactile effects such as an effect of reproducing a cold sensation using an endothermic or exothermic element can be generated.

The haptic module 154 can be implemented not only to transmit the tactile effect through the direct contact but also to allow the user to feel the tactile effect through the muscular sensation of the finger or arm. The haptic module 154 may include more than one haptic module 154 according to the configuration of the mobile terminal 100. [

The projector module 155 is a component for performing an image project function using the mobile terminal 100 and is similar to the image displayed on the display unit 151 in accordance with a control signal of the controller 180 Or at least partly display another image on an external screen or wall.

Specifically, the projector module 155 includes a light source (not shown) that generates light (for example, laser light) for outputting an image to the outside, a light source And a lens (not shown) for enlarging and outputting the image at a predetermined focal distance to the outside. Further, the projector module 155 may include a device (not shown) capable of mechanically moving the lens or the entire module to adjust the image projection direction.

The projector module 155 can be divided into a CRT (Cathode Ray Tube) module, an LCD (Liquid Crystal Display) module and a DLP (Digital Light Processing) module according to the type of the display means. In particular, the DLP module may be advantageous for miniaturization of the projector module 151 by enlarging and projecting an image generated by reflecting light generated from a light source on a DMD (Digital Micromirror Device) chip.

Preferably, the projector module 155 may be provided longitudinally on the side, front or back side of the mobile terminal 100. It goes without saying that the projector module 155 may be provided at any position of the mobile terminal 100 as occasion demands.

The memory 160 may store a program for the operation of the controller 180 and temporarily store input / output data (e.g., a phone book, a message, a still image, a moving picture, etc.). The memory 160 may store data on vibration and sound of various patterns outputted when a touch is input on the touch screen.

The memory 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), a RAM (Random Access Memory), SRAM (Static Random Access Memory), ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM A disk, and / or an optical disk. The mobile terminal 100 may operate in association with a web storage that performs a storage function of the memory 160 on the Internet.

The interface unit 170 serves as a path for communication with all external devices connected to the mobile terminal 100. The interface unit 170 receives data from an external device or supplies power to each component in the mobile terminal 100 or transmits data to the external device. For example, a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device having an identification module, an audio I / O port, A video input / output (I / O) port, an earphone port, and the like may be included in the interface unit 170.

The identification module is a chip storing various information for authenticating the use right of the mobile terminal 100 and includes a user identification module (UIM), a subscriber identity module (SIM), a general user authentication module A Universal Subscriber Identity Module (USIM), and the like. Devices with identification modules (hereinafter referred to as "identification devices") can be manufactured in a smart card format. Accordingly, the identification device can be connected to the terminal 100 through the port.

When the mobile terminal 100 is connected to an external cradle, the interface unit 170 may be a path through which power from the cradle is supplied to the mobile terminal 100, or various commands A signal may be transmitted to the mobile terminal 100. Various command signals input from the cradle or the power source may operate as a signal for recognizing that the mobile terminal 100 is correctly mounted on the cradle.

The controller 180 typically controls the overall operation of the mobile terminal 100. For example, voice communication, data communication, video communication, and the like. The control unit 180 may include a multimedia module 181 for multimedia playback. The multimedia module 181 may be implemented in the control unit 180 or may be implemented separately from the control unit 180. [

The controller 180 may perform a pattern recognition process for recognizing handwriting input or drawing input performed on the touch screen as characters and images, respectively.

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power necessary for operation of the respective components.

The various embodiments described herein may be embodied in a recording medium readable by a computer or similar device using, for example, software, hardware, or a combination thereof.

According to a hardware implementation, the embodiments described herein may be implemented as application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays May be implemented using at least one of a processor, controllers, micro-controllers, microprocessors, and other electronic units for performing other functions. In some cases, The embodiments described may be implemented by the control unit 180 itself.

According to a software implementation, embodiments such as the procedures and functions described herein may be implemented with separate software modules. Each of the software modules may perform one or more of the functions and operations described herein. Software code can be implemented in a software application written in a suitable programming language. The software code is stored in the memory 160 and can be executed by the control unit 180. [

FIG. 2 is a front view of a mobile terminal for explaining an operation state of a mobile terminal according to the present invention, wherein a touch applied to a virtual keypad is received through a front surface of the terminal body.

Various types of time information can be displayed on the display unit 151. [ These pieces of information can be displayed in the form of letters, numbers, symbols, graphics, or icons.

At least one of the letters, numbers, symbols, graphics, or icons may be displayed in a predetermined arrangement for inputting such information, thereby being implemented as a keypad. Such a keypad may be referred to as a so-called " virtual keypad ".

The display unit 151 may operate as an entire area or may be divided into a plurality of areas and operated. In the latter case, the plurality of areas can be configured to operate in association with each other.

For example, an output window 151a and an input window 151b are displayed on the upper and lower portions of the display unit 151, respectively. The output window 151a and the input window 151b are areas allocated for outputting or inputting information, respectively. In the input window 151b, a virtual keypad 151c is displayed in which a number for inputting a telephone number or the like is displayed. When the virtual keypad 151c is touched, numbers and the like corresponding to the touched virtual keypad are displayed on the output window 151a. When the first operation unit 131 is operated, call connection to the telephone number displayed on the output window 151a is attempted.

3A and 3B show a state in which an identification device is detached from a mobile terminal according to an embodiment of the present invention. For example, the identification device may include a SIM card.

3A and 3B, the identification device 310 is detachably provided from the mobile terminal 100. As shown in FIG. Therefore, the mobile terminal 100 may be replaced with an identification device. Of course, the identification device 310 may be mounted on the mobile terminal 100 in combination with the interface unit 170, and may be connected to a separate connector for coupling with the identification device 310, .

The mobile terminal 100 can authenticate the overall usage rights of the mobile terminal 100 or authenticate the broadcasting viewing / purchasing authority using the mobile terminal 100 by using the identification device 310. [

Although not shown in the drawings, the connecting means for connecting the identification device 310 and the mobile terminal 100 may be provided at any position such as the rear surface, the side surface, and the front surface of the mobile terminal 100.

In addition, although FIGS. 3A and 3B show a state in which the identification device is detached from the mobile terminal, it goes without saying that the present invention is applicable to a mobile terminal that does not have a detachable identification device.

The mobile terminal referred to herein may include at least one of the components shown in FIG.

Also, the broadcasting provider referred to in the present specification may refer to a broadcasting provider or a broadcasting channel itself that provides broadcasting contents through at least one broadcasting channel. For example, when the broadcasting company operates the first to third broadcasting channels, the broadcasting provider may transmit the MBN or the first to third broadcasting channels (for example, CH MBN- News, CH MBN-Drama, CH MBN-Sports).

For example, according to ATSC-M / H (Advanced Television Systems Committee-Mobile / Handheld) (one of mobile broadcasting standard technologies), a broadcast provider can be called a provider and a broadcast channel can be called a service have.

In addition, an ensemble referred to herein is a collection of at least one broadcast channel (or service) provided by at least one broadcast provider, and includes a plurality of broadcast channels (or services) And a table including configuration information of each of a plurality of broadcast channels. A specific description of the ensemble will be described in detail below with reference to FIG.

The broadcast-related information referred to in this specification includes schedule information, content information, preview information, interactive service information, and the like for the broadcast content (or broadcast program), and more specifically, 8) and broadcast guide information (see FIG. 9). Further, channel connection information (see FIGS. 7A and 7B) and broadcast guide reception related information (see FIG. 8) may be required as information for receiving broadcast guide information.

For example, in the ATSC-M / H, channel connection information is transmitted to a guide access table (GAT) and a service mapping table (SMT), broadcast guide reception related information is transmitted to a service guide directory descriptor Service Guide Delivery Descriptor (SGDD), and the broadcast guide information may be referred to as a Service Guide Delivery Unit (SGDU).

Prior to a specific description of a broadcast control method according to the present invention, a structure of an ensemble provided in a broadcast frequency band allocation and a mobile area will be described in detail with reference to FIG. 4A to FIG.

For convenience of explanation, it is assumed that there are a plurality of broadcast providers that provide broadcast content and broadcast related information to the mobile terminal. The broadcasting frequency band is a broadcasting frequency band (hereinafter referred to as a mobile area) for a broadcasting frequency band (hereinafter referred to as a terrestrial wave area) and a mobile broadcasting (for a mobile TV) for terrestrial broadcasting It can be divided. It is also assumed that one broadcast provider can provide both terrestrial broadcasting and mobile broadcasting.

4A and 4B are diagrams illustrating a broadcast frequency domain allocation structure for a plurality of broadcast providers.

Referring to FIG. 4A, the broadcast frequency band is divided into a terrestrial area 410 and a mobile area 420. In addition, since the mobile area 420 is an integrated frequency band common to all the broadcast providers (the first to fourth broadcast providers), the mobile area 420 is not individually allocated for each of the broadcast providers. This may mean that the mobile area 420 is shared by the entire broadcast provider.

4A, the broadcast content area 421 and the broadcast related information area 422 of the mobile area 420 are divided and operated. In FIG. 4A, The broadcast-related information area can be integrated and operated. In particular, in FIG. 4A, the entire broadcast provider provides a broadcast signal of a specific broadcast channel through the broadcast content area 421, and broadcast-related information is provided for each broadcast provider, .

Here, the broadcast content area refers to a broadcast frequency band for receiving a broadcast signal corresponding to a broadcast program provided by a broadcast provider through a broadcast channel, and the broadcast related information area includes broadcast related information provided by a broadcast provider It may mean a broadcast frequency band for reception.

4B, the broadcast frequency bands may be separately allocated to the first to fourth broadcast providers (440, 460, and 470), and may be individually allocated to the broadcast channels (430, 440 , 450, 460).

According to FIG. 4B, a broadcast frequency band is allocated for each broadcast channel operated by a broadcast provider, and a broadcast frequency band is allocated for each broadcast provider according to FIG. 4B. For example, assuming that the first broadcast provider operates the first and third broadcast channels, a first broadcast provider (first broadcast channel) 430 and a first broadcast provider (A first channel and a third channel) 450 and a broadcast frequency band is assigned to a first broadcast provider (first and third broadcast channels 470) in FIG. 4B (Allocation by broadcasting provider).

Also, the terrestrial area and the mobile area can be divided and operated within each broadcasting frequency band, and the broadcasting contents area and the broadcasting related information area can be integrated or operated in the mobile area (see FIG. 4A).

5 is a diagram illustrating a structure of an ensemble provided in a mobile area in a broadcast frequency region of a specific broadcast provider. As described above, the broadcast frequency domain can be divided into a terrestrial domain 510 and a mobile domain 520.

In the mobile area 520, at least one ensemble 531 to 533 may be provided. Each of the at least one ensemble 531 to 533 may include at least one broadcast channel (or service) and at least one broadcast channel configuration information provided by the corresponding broadcast provider. In particular, one ensemble may be assigned at least one broadcast provider. In addition, the configuration information of the broadcast channel can be acquired in the scanning process of the ensemble.

For example, in the ATSC-MH, the configuration information of a broadcast channel included in an ensemble may be referred to as a service signaling channel table (SSC-Table) 531-1 to 53-3. More specifically, the SSC-Table may include GAT, SMT, SLT, CIT, and the like.

Hereinafter, in the case of ATSC-MH, the first ensemble 531 will be described in detail.

The first ensemble 531 may include a configuration table (SSC-Table) 531-1 for services included in the first to Nth services (Service 1 to N) and the first ensemble 531 have.

For example, in the first to Nth services (Service 1 to N), broadcast channels provided by at least one broadcast provider (e.g., MBN, MBS) allocated to the first ensemble 531 (MBN-News, MBN-Sports, MBS-Drama, and MBS-Movie) of the first ensemble 531 or broadcast guide information Reception-related information). In the configuration table (SSC-Table) 531-1, channel connection information (GAT) for each broadcast provider, decoding information (SMT) of services included in the first ensemble 531, and the like can be provided.

In addition, according to the ensemble configuration, a specific ensemble among a plurality of ensembles can be separately allocated to provide broadcast related information, and in a specific ensemble, broadcast related information on services provided in remaining ensembles can be provided.

Hereinafter, the structure of the channel connection information, the broadcast guide reception related information, and the broadcast guide information for each broadcast provider according to the present invention will be described with reference to FIG. 6 to FIG.

For convenience of description, the data structure of each channel provider-specific channel connection information (GAT, SMT), broadcast guide reception related information (SGDD), and broadcast guide information (SGDU) used in the ATSC-MH will be described.

As shown in FIG. 6, the broadcast information may include an SGDD 610 including channel connection information of a channel providing an SGDU, and at least one SGDU 620 through 660 provided for each fragment. Here, the fragment may mean an identifier for distinguishing the content or type of data included in the SGDU.

More specifically, the SGDUs 620 to 660 each include an SGDU 620 having a data type of service (or SGDU including a service fragment), an SGDU having a data type of schedule data (or SGDU including a schedule fragment) 630 An SGDU (or an SGDU including a content fragment) 640 whose data type is content data, an SGDU (or an SGDU including a preview fragment) whose data type is preview data, an SGDU 650 whose data type is interactive data, (Or an SGDU that includes an interactive fragment) 660.

In particular, here, the SGDU 620 including the service fragment has matching information with the identification information set in each of the other SGDUs 630 to 660, and information necessary for outputting each of the other SGDUs 630 to 660. Accordingly, the mobile terminal 100 confirms the matching information corresponding to the identification information of the specific SGDU from the SGDU 620 including the service fragment, and outputs the specific SGDU using the information associated with the confirmed matching information .

7A, the GAT may include identification information 701, 702, and 703 of the corresponding broadcast provider. For example, the identification information may include a broadcast provider name (SG_provider_name) 703, a service ID (MH_service_Id) 701, and announcement channel information (anouncement_channel_tsI) 702.

At this time, the broadcast provider including the name of the broadcast provider in the GAT can be regarded as a broadcast provider providing the broadcast guide information.

7B, the mobile terminal 100 confirms the service ID (MH_service_Id) 711 matched with the service ID (MH_service_Id) 701 included in the GAT shown in FIG. 7A from the SMT, It is possible to extract the channel connection information of the SGDD associated with the identified service ID (MH_service_Id) 711.

For example, the channel connection information of the SGDD extracted from the SMT may include source_IP_address and MH_service_destination_IP_address (720), and component_destination_UDP_port_num and component_destination_IP_address (730).

The mobile terminal 100 transmits the announcement channel information (anouncement_channel_tsI) 702 included in the GAT, the source_IP_address and the component_destination_IP_address included in the SMT (using the MH_service_destination_IP_address if it does not exist) (hereinafter referred to as SGDD channel connection information) To open a channel (or session) providing the corresponding SGDD, and receive the SGDD through the open channel.

8, the SGDD includes SGDD identification information 810, descriptor entry information 820, channel connection information 830 for providing an SGDU, and fragment type information (840), and the like.

More specifically, the mobile terminal 100 confirms the ServiceGuideDeliveryUnit information included in the descriptor entry information 820, and uses the fragment type information 840 corresponding to the confirmed ServiceGuideDeliveryUnit information, .

For example, according to 840, when the fragment type = 1, the SGDU has a service fragment, when the fragment type = 2, the SGDU has a content fragment, when the fragment type = 3, the SGDU has a schedule fragment, If the SGDU has a preview data fragment and the fragment type = 9, the corresponding SGDU has an interactive data fragment set.

Also, the mobile terminal 100 may open a channel (or session) for providing a corresponding SGDU using the data included in the channel connection information 830 providing the SGDU, and may receive the SGDU through the open channel have. For example, the channel connection information 830 may include an IP address (ipAddress), a port information, and a TSI (transmissionSessionID) of the corresponding SGDU.

FIG. 9 shows the SGDD structure received using the channel connection information 830 of the SGDD.

Referring to FIG. 9, the SGDU may include a corresponding fragment type 901 and broadcast guide information 902 encapsulated to fit the fragment type.

Accordingly, the mobile terminal 100 can open the broadcast guide information 902 encapsulated to be suitable for the data type, and extract the broadcast guide information to be substantially provided.

In addition, according to the present invention, while receiving a specific broadcast program through a specific broadcast channel, the mobile terminal 100 can receive explanatory information on a specific broadcast program through a specific broadcast channel.

For example, description information about a broadcast program referred to in the ATSC-MH may include a current program descriptor. 10, the current program descriptor includes, as information on the corresponding program, a current program start time (1001), a current program end time (not shown), a broadcast time current program duration 1002, title text 1003, and the like.

Accordingly, when the currently received broadcast program is changed, the mobile terminal 100 can receive description information corresponding to the changed broadcast program. That is, the explanation information can be changed according to the currently received broadcast program.

Hereinafter, a broadcast control method of a mobile terminal according to the present invention will be described in detail with reference to the accompanying drawings.

11 is a flowchart of a broadcast control method of a mobile terminal according to an embodiment of the present invention.

11, the mobile terminal 100 receives the broadcast-related information through the wireless communication unit 110 (S1110), and transmits the received broadcast-related information to the memory 160 (160) under the control of the controller 180 (S1120).

The mobile terminal 100 may periodically or at any time receive broadcast-related information from a broadcast-related server. In addition, the mobile terminal 100 may receive broadcast-related information according to a period or a time point determined by the user, or may receive broadcast-related information transmitted unilaterally from the broadcast-related server. In addition, even when the reception period or time point of the broadcast-related information is preset, the mobile terminal 100 needs to receive a transmission command operation of a request signal of broadcast-related information from a user or receive new broadcast-related information When it is judged, the request signal of the broadcast related information is transmitted to the broadcast related server, and as a result, the broadcast related information can be received from the broadcast related server.

When the mobile terminal 100 has already stored broadcast-related information and receives new broadcast-related information, the mobile terminal 100 compares the previously stored broadcast-related information with the version information of the newly received broadcast-related information, The broadcast-related information previously stored can be updated based on the newly received broadcast-related information.

For example, if the broadcast-related information includes SGDD and SGDU, the mobile terminal 100 first receives the SGDD and determines whether the version information of the received SGDD matches the version information of the previously stored SGDD .

When the mobile terminal 100 determines that the version information of each of the received SGDD and the previously stored SGDD is different, the mobile terminal 100 receives the SGDU using the received SGDD, and transmits the stored SGDU Can be updated. On the other hand, when the mobile terminal 100 determines that the version information of the received SGDD and the previously stored SGDD are identical, the mobile terminal 100 may not perform the reception operation of the SGDU using the received SGDD. This is because, if the version information of the SGDD matches, the contents of the received SGDU are also matched by using it.

The mobile terminal 100 receives the broadcast program and explanatory information on the broadcast program through the wireless communication unit 110 (S1130). In particular, the broadcast program and its explanatory information may be received using the broadcast receiving module 111.

Hereinafter, for convenience of explanation, it is assumed that the broadcast program received in the receiving step S1130 is a first broadcast program provided in the first broadcast channel, and the first broadcast program received in the receiving step S1130 Is assumed to be the first explanation information.

The mobile terminal 100 may receive the first broadcast program and the first explanatory information through the frequency band allocated to the first broadcast channel.

For example, the first explanation information may include a broadcast start time / broadcast end time, a broadcast time, a program name, etc. of the first broadcast program (see FIG. 10). Therefore, when the broadcasting program received in the receiving step S1130 is changed, its explanation information is also changed. Also, the received first description information may be stored in the memory 160.

Furthermore, according to the ATSC-MH, the first broadcast channel can be any one of at least one service included in a specific ensemble (see FIG. 5).

The mobile terminal 100 may output the first broadcast program received in the receiving step S1130 through the output unit 150 under the control of the control unit 180. [

For example, the first broadcast program may include audio data and video data, and video data and audio data may be output through the display unit 151 and the audio output module 152, respectively.

The mobile terminal 100 determines whether or not a specific part corresponding to the received first broadcast program matches the first description information among the broadcast related information stored in the storage step S120 according to the control of the controller 180 (S1140).

Alternatively, in the determination step S1140, the mobile terminal 100 extracts a specific part corresponding to the broadcast program including the current time in the broadcast time among the broadcast programs provided in the first broadcast channel, from the stored broadcast related information And it can be determined whether or not the extracted specific part matches the first explanation information.

The broadcast-related information can be configured for each broadcast channel (or ensemble), and can be extracted for each broadcast program. For example, it is assumed that broadcast guide information (hereinafter, content information) (an example of broadcast-related information) in which a content fragment is set can be configured for each broadcast program.

For example, if the current time is 9:30 and the first broadcast program currently being output from the first broadcast channel is being output, the mobile terminal 100 may set the broadcast start time and broadcast time of the broadcast- The content information for the broadcast program including the current time of 9:30 may be extracted between the end times.

Then, the mobile terminal 100 can determine whether or not the extracted content information matches the first explanation information. At this time, the mobile terminal 100 can determine whether at least one of the broadcast start time, the broadcast end time, the broadcast time, and the broadcast program name included in each of the extracted content information and the first explanation information is consistent.

If it is determined in step S1140 that the specific part corresponding to the received first broadcast program does not match the first description information among the stored broadcast related information, the mobile terminal 100 performs the control of the controller 180 , It is possible to perform an operation for updating the stored broadcast related information.

Hereinafter, the updating process of the broadcast-related information is divided into two embodiments.

According to the first embodiment, the mobile terminal 100 can update the stored broadcast related information based on the received first explanation information (S1151).

When the mobile terminal 100 is outputting the first broadcast program through the output unit 150 and confirms the change of the broadcast program name on the basis of the first explain information, The changed program name can be displayed on the display unit. In this case, the mobile terminal 100 may not be accompanied by the update of the stored broadcast-related information.

In addition, when the first broadcasting program provided from the first broadcasting channel is being outputted through the output unit 150, the mobile terminal 100 changes the broadcasting schedule list of the first broadcasting channel based on the first description information And display the changed broadcasting schedule list. In this case, the mobile terminal 100 may not be accompanied by the update of the stored broadcast-related information.

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

For convenience of explanation, it is assumed that a specific portion (hereinafter referred to as a first specific portion) corresponding to the first broadcast program among the previously stored broadcast-related information is different from the first explanatory information.

12, the mobile terminal 100 displays a window 1210 for allowing the user to select a method for updating previously stored broadcast-related information when the first specified portion and the first explanation information are different from each other .

For example, the first method 1211 may be an update based on the first description information, and the second method 1213 may be to receive new broadcast related information and update using the newly received broadcast related information.

Hereinafter, the case where the first method is selected will be described.

13A and 13B are screen configuration diagrams for displaying updated broadcast related information when the broadcast start time / broadcast end time is different.

13A, the broadcast start time and the broadcast end time included in the description information of the currently output broadcast program are "10:30" (1301) and "11:30 (1302) 10:00 "1303 and" 11:00 "1304 included in the broadcast-related information corresponding to the currently outputted broadcast program among the stored broadcast-related information, .

That is, FIG. 13A shows that the broadcast start time of the currently output broadcast program is changed from "10 o'clock" to "10:30" and the broadcast end time is changed from "11 o'clock" to "11:30".

Accordingly, the mobile terminal 100 can change the broadcast schedule list of the broadcast channel providing the currently outputted broadcast program as shown in FIG. 13B.

For example, the broadcast time (including the broadcast start time and broadcast end time) of the second program, which is the currently outputted broadcast program, is changed from "10:00 to 11:00" (1305) to "10:30 to 11:30 1306), and the broadcast start time and the broadcast start time of each of the broadcast programs after the second program may be delayed by 30 minutes each.

14A and 14B are screen configuration diagrams for displaying updated broadcast-related information when the broadcast program names are different.

14A, the name of the broadcast program included in the description information of the currently outputted broadcast program is "breaking news" 1401 (a) and included in the broadcast related information corresponding to the currently broadcasted broadcast program (B) the name of the broadcast program is "the second broadcast program" 1402.

That is, FIG. 14A shows that the name of the currently outputted broadcast program is changed from "second broadcast program" to "breaking news".

Accordingly, as shown in FIG. 14B, the mobile terminal 100 can display the name of the broadcast program currently output in the broadcast schedule list of the broadcast channel providing the currently outputted broadcast program as "second broadcast program & 13b (a)} to "breaking news" 1403 (a).

Alternatively, the mobile terminal 100 can display the changed broadcast program name "breaking" 1404 in one area of the output screen of the currently outputting broadcast program (b).

15A and 15B are screen configuration diagrams for displaying updated broadcast related information when the broadcast start time / broadcast end time and the broadcast program name are different.

15A, when the broadcast start time and the broadcast end time included in the description information of the currently output broadcast program are "10:30" (1501) and "11:30 (1502)" respectively and the broadcast time is " 30 minutes "(1503), the name of the broadcast program is" breaking news "1504 (a), the broadcast start time and broadcast end time included in the broadcast related information corresponding to the currently outputted broadcast program among the pre- (B) shows that the broadcast time is " 1 hour "and the broadcast program name is" second broadcast program "

15A shows that the broadcasting start time of the currently outputted broadcast program is changed from "10 o'clock" to "10:30", the broadcast time is changed to "30 minutes", and the broadcast program name is changed to "breaking news" .

Accordingly, the mobile terminal 100 can change the broadcast schedule list of the broadcast channel providing the currently outputted broadcast program as shown in FIG. 15B. Referring to Fig. 13B (a) as a pre-change broadcasting schedule list.

For example, the mobile terminal 100 adds "10:30 to 11:00 am" in the broadcast schedule list 1505, and adds the second broadcast program portion "10:30 to 11:00" 11:00 to 11:30 "(1506). In this case, the broadcast start time and the broadcast start time of each of the broadcast programs after the second broadcast program may be delayed by 30 minutes each.

Alternatively, the mobile terminal 100 adds "10:30 to 11:00 am" in the broadcast schedule list 1505 and adds "10:30 to 11:00 am" after "10:30 am to 11:00 am" Quot; 11:00 "in place of the second broadcast program portion that has been interrupted, the broadcast programs after the second broadcast program can be arranged.

On the other hand, although not shown in the drawings, when the interactive service (hereinafter referred to as the interactive service) is linked to the broadcast program scheduled to be broadcast at the current time based on the broadcast-related information, When the first explanation information is different, various control operations can be performed.

For example, the mobile terminal 100 outputs notification information indicating that the interactive service information does not exist, does not provide the interactive service at all, or determines whether the user re-receives the interactive service information from the external server You can choose whether or not.

More specifically, if the name of the broadcast program is different, the mobile terminal 100 may not provide the interactive service while informing that the interactive service information does not exist. This is because the change of the name of the broadcast program may mean that the broadcast program itself has been changed.

Alternatively, if the broadcast start time / broadcast end time is different, the mobile terminal 100 may provide the interactive service information for the changed broadcast time.

According to the second embodiment, the mobile terminal 100 can re-receive broadcast-related information and update the stored broadcast-related information using the re-received broadcast-related information.

More specifically, the mobile terminal 100 transmits a broadcast-related information request signal to the broadcast-related server through the wireless communication unit 110 under the control of the control unit 180 (S1161) .

For example, the mobile terminal 100 may perform the transmission step S1161 when receiving the transmission command operation of the request signal of the broadcast-related information from the user.

In the transmitting step S1161, the mobile terminal 100 may transmit a request signal of the broadcast-related information corresponding to the broadcast channel providing the first broadcast program currently being output or the ensemble to which the first broadcast program is broadcast, or may transmit all broadcast channels or all ensembles Related information corresponding to the broadcast-related information.

As a result of transmitting the request signal of the broadcast-related information, the mobile terminal 100 re-receives the broadcast-related information from the broadcast-related server through the wireless communication unit 110 (S1163).

Assuming that broadcast related information includes SGDD (an example of broadcast guide reception related information) and SGDU (an example of broadcast guide information), the mobile terminal 100 can re-receive the SGDD first. Alternatively, the mobile terminal 100 may re-receive both the SGDD and the SGDU.

Related information corresponding to a broadcast channel (or an ensemble to which the first broadcast program is to be output) or broadcast-related information corresponding to all broadcast channels (or all ensembles) .

In step S1165, the mobile terminal 100 determines whether the broadcast related information re-received in the re-receiving step S1163 is identical to the version information of the previously stored broadcast related information, under the control of the controller 180.

Here, the version information is information that is changed whenever the broadcast-related information is changed, and may indicate whether or not the broadcast-related information is changed by itself.

For example, when the SGDD is first received in the re-reception step S1163, the mobile terminal 100 may determine whether the version information included in the received SGDD matches the version information of the SGDD. If it is determined that the version information included in the received SGDD matches the version information of the stored SGDD, the mobile terminal 100 may receive the SGDU using the received SGDD.

Of course, if the version information is included in the SGDU, the mobile terminal 100 receives both the SGDD and the SGDU in the re-reception step S1163, and transmits the version information included in the received SGDU and the version information of the previously stored SGDU Can be determined.

If it is determined in step S1165 that the version information is consistent, the mobile terminal 100 determines whether a specific part corresponding to the first broadcast program among the broadcast-related information re-received in the re-receive step S1163 And the first explanatory information (step S1167).

For example, the mobile terminal 100 can determine whether a specific part corresponding to the first broadcast program among the SGDUs (an example of the broadcast guide information) matches the first explanation information.

When it is determined in step S1165 that the version information does not match, the mobile terminal 100 confirms whether or not the broadcast-related information having version information different from the stored broadcast-related information is received. In step S1167, 1 description information, it is checked whether the broadcast-related information having version information different from the re-received broadcast-related information is received (S1169).

Here, the fact that the version information of the broadcast-related information is consistent or the version information is different but the portion corresponding to the explanation information is consistent with the fact that the actual broadcast-related information is changed based on the description information of the currently- And may not be reflected in the broadcast-related information provided by the broadcast-related server.

Accordingly, the mobile terminal 100 periodically or at a certain point of time re-receives the broadcast-related information, and confirms whether or not the re-received broadcast-related information reflects a substantial change in the broadcast-related information about the currently received broadcast program .

On the other hand, if it is determined in step S1167 that the mobile terminal 100 matches, the mobile terminal 100 updates the stored broadcast-related information based on the broadcast-related information re-received in the re-receive step S1163 (S1171).

In the following, the present invention will be described in more detail with reference to the accompanying drawings. For convenience of explanation, it is limited that the second method _ update 1213 using newly received broadcast related information is selected as the update method of the broadcast related information in Fig.

FIGS. 16A to 16C are screen configuration diagrams showing a process of updating broadcast-related information when broadcast-related information is replayed. FIG.

Referring to FIG. 16A, when the second method 1213 is selected in FIG. 12, the mobile terminal 100 transmits a broadcast channel currently used (hereinafter referred to as a current broadcast channel), a broadcast channel (A) a window 1610 allowing the user to select any one of all broadcast channels.

16A, if the current broadcast channel is selected, the mobile terminal 100 re-receives the broadcast related information corresponding to the current broadcast channel, and transmits the re-received broadcast related information and the version information of the previously stored broadcast related information (B).

Of course, this is true even if other broadcast channels or all broadcast channels are selected in FIG. 16A.

Referring to FIG. 16B, when the version information is found as a result of the check in FIG. 16A (b), the mobile terminal 100 monitors whether the broadcast related information having version information different from the version information of the previously stored broadcast related information is received (A) to display a window 1630 that prompts the user for selection.

Accordingly, when "YES" is selected in FIG. 16B (a), the mobile terminal 100 can periodically monitor whether or not the broadcast related information having different version information from the previously stored broadcast related information is received.

Alternatively, if the version information matches the confirmation result in FIG. 16A (b), the mobile terminal 100 may prompt the user to select whether to update the broadcast-related information based on the description information of the currently received / outputted broadcast program (B). ≪ / RTI >

Accordingly, when "YES" is selected in FIG. 16B, the mobile terminal 100 can update the broadcast related information previously stored on the basis of the description information of the currently received / outputted broadcast program.

16 (c), if the version information does not coincide as a result of the check in FIG. 16 (b), the mobile terminal 100 displays a specific part corresponding to the currently received / outputted broadcast program among the re- It is possible to judge whether the information is consistent (a).

16 (a), when the mobile terminal 100 determines that the specific information matches the description information, the mobile terminal 100 causes the user to select whether to update the broadcast-related information based on the re-received broadcast-related information Window 1660 can be displayed (b).

Accordingly, when "YES" is selected in FIG. 16C (b), the mobile terminal 100 can update the broadcast related information previously stored on the basis of the re-received broadcast related information.

Further, according to an embodiment of the present invention, the above-described broadcast control method can be implemented as a code that can be read by a processor on a medium on which a program is recorded. Examples of the medium that can be read by the processor include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, etc., and may be implemented in the form of a carrier wave (e.g., transmission over the Internet) .

The above-described mobile terminal and its broadcast control method are not limited to the configuration and method of the above-described embodiments, but the embodiments can be applied to all or some of the embodiments so that various modifications can be made. Or may be selectively combined.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a mobile terminal.

FIGS. 3A and 3B are rear perspective views of a mobile terminal according to an embodiment of the present invention in a state in which an identification device is detached; FIG.

4A and 4B are diagrams illustrating a broadcast frequency domain allocation structure for a plurality of broadcast providers according to the present invention.

FIG. 5 illustrates an ensemble structure provided in a mobile area of a broadcast frequency region of a specific broadcast provider according to the present invention; FIG.

6 is a structural view of an SGDD and a SEDU according to an embodiment of the present invention;

7A and 7B are structural diagrams of a GAT and an SMT according to an embodiment of the present invention.

8 is a data structure diagram of an SGDD according to an embodiment of the present invention;

9 is a data structure diagram of an SGDU according to an embodiment of the present invention;

10 is a data structure diagram of explanatory information according to an embodiment of the present invention;

11 is a flowchart of a broadcast control method of a mobile terminal according to an embodiment of the present invention.

FIG. 12 is a screen configuration diagram for selecting a broadcast related information update method when explanatory information and broadcast related information differ from each other according to the present invention. FIG.

FIG. 13A and FIG. 13B are screen configuration views for displaying updated broadcast-related information when broadcast start time / broadcast end time differ from each other according to the present invention. FIG.

FIG. 14A and FIG. 14B are screen configuration diagrams for displaying updated broadcast related information when broadcast program names are different according to the present invention. FIG.

FIG. 15A and FIG. 15B are screen configuration views for displaying broadcast-related information updated when broadcast start time / broadcast end time and broadcast program name are different according to the present invention. FIG.

16A to 16C are diagrams showing a screen update process for updating broadcast-related information in response to broadcast-related information in accordance with the present invention.

Claims (10)

A wireless communication unit for receiving broadcast related information; A memory for storing the received broadcast related information; And Comparing the received description information with a specific part corresponding to the received broadcast program among the stored broadcast related information when the broadcast program and the description information about the broadcast program are received through the wireless communication unit, And a controller for updating the stored broadcast related information based on the received description information if the comparison result does not match, The wireless communication unit transmits a request signal of the broadcast related information to the broadcast related server when the comparison result does not coincide with the broadcast related server in response to the transmission of the request signal, Receiving, Wherein the control unit is configured to compare the stored broadcast related information and the re-received broadcast related information when the version information of the re-received broadcast related information differs from the stored broadcast related information, Related information related to the re-received broadcast-related information, and updates the stored broadcast-related information based on the re-received broadcast-related information if the comparison result coincides with the broadcast-related information. And confirms whether or not the broadcast-related information is received. The information processing apparatus according to claim 1, A broadcast start time, a broadcast end time, a broadcast time, and a program name of the broadcast program. delete The apparatus of claim 1, Related information having version information different from the stored broadcast-related information when the stored broadcast-related information matches the version information of the re-received broadcast-related information. delete The apparatus of claim 1, And if the comparison result does not match, updating the broadcast program name displayed at the time of outputting the broadcast program on the basis of the description information and displaying the updated broadcast program name in one area of the output screen of the broadcast program, . The apparatus of claim 1, And updates the program schedule list of the broadcast channel providing the broadcast program based on the explanatory information if the comparison result does not match, and displays the updated program schedule list. Receiving broadcast-related information; Storing the received broadcast related information; Receiving a broadcast program and explanatory information on the broadcast program; Comparing the stored description information with a specific part corresponding to the received broadcast program; Updating the stored broadcast-related information based on the received description information if the comparison result does not match; Transmitting a request signal of the broadcast-related information to a broadcast-related server when the comparison result does not match; Re-receiving broadcast-related information from the broadcast-related server as a result of the transmission of the request signal; If the stored broadcast-related information and the re-received broadcast-related information differ in version information, whether or not a specific part corresponding to the stored broadcast program among the re-received broadcast-related information matches the received description information step; Updating the stored broadcast-related information on the basis of the re-received broadcast-related information if the comparison result is matched; And checking if the broadcast related information having different version information from the re-received broadcast related information is received if the comparison result does not match. delete delete

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