KR101623784B1 - Mobile terminal and method for controlling broadcast thereof - Google Patents

Abstract

In the present invention, first broadcast time information is extracted from first description information of a currently received first broadcast program, a broadcast related reference time is set using the extracted first broadcast time information, Related information corresponding to the reference time, and a broadcasting control method for the same.

Description

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

The present invention relates to a mobile terminal capable of providing broadcast-related information related to a specific point in time in a broadcast terminal, and a broadcast control method thereof.

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 can receive a data stream at a predetermined period and set a broadcast reference time using broadcast time related information transmitted through the data stream.

Further, according to the ATSC-MH, the mobile terminal receives a data packet from the server providing a reference time at a cycle of at least once every 10 minutes, and uses the reference time included in the received data packet, Can be set.

However, according to the above-described related art, when broadcast time related information is not provided through the broadcast data stream, the broadcast-related current time can not be set.

In addition, if the data packet is not received at a point of time when the reception period of the data packet is long and the broadcast related information is searched, the broadcast related information can not be retrieved.

In order to solve the above problems, the present invention provides a mobile terminal capable of setting a broadcast related reference time using broadcast time information included in explanatory information on a currently received broadcast program, and a broadcast control method thereof .

Another object of the present invention is to provide a mobile terminal capable of searching for specific broadcast-related information using a broadcast-related reference time set using broadcast time information corresponding to a currently received broadcast program, and a broadcast control method thereof have.

A mobile terminal according to an embodiment of the present invention for realizing the above-mentioned object includes a wireless communication unit for receiving a first broadcast program of a first broadcast channel and first explanatory information of the first broadcast program; An output unit for outputting the received first broadcast program; A memory for storing broadcast related information; And extracting first broadcast time information of the first broadcast program from the received first description information when data including the reference time information is not received, extracting first broadcast time information of the first broadcast program from the received first description information, And a control unit for setting a reference time and searching for specific broadcast related information corresponding to the set broadcast related reference time from the broadcast related information stored in the memory.

According to another aspect of the present invention, there is provided a method of controlling a broadcast of a mobile terminal, the method comprising: receiving a first broadcast program of a first broadcast channel and first explain information of the first broadcast program; Outputting the received first broadcast program; Determining whether data including reference time information is received; Extracting first broadcast time information of the first broadcast program from the received first description information if the determination result is not received; Setting a broadcast-related reference time using the extracted first broadcast time information; And searching for the specific broadcast related information corresponding to the set broadcast related reference time from the stored broadcast related information.

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, even when the reference time data providing the reference time is not received, the broadcasting reference time can be set using the broadcasting time information corresponding to the broadcasting program currently being received / outputted.

Second, even when the reference time data providing the reference time is not received, the specific broadcast-related information can be retrieved using the broadcast-related reference time set using the broadcast time information corresponding to the broadcast program currently being received / outputted .

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 have.

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 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 location of the mobile terminal 100, the presence of a user, 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 whether the power supply unit 190 is powered on, 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 area of a 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 sound output module 152 may receive audio data stored in the memory 160 or received from the wireless communication unit 110 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. At least two haptic modules 154 may be provided 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 rear surface 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, you can connect a device with a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a device with an identification module, an audio input / 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 for 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, in which a touch applied to a virtual keypad is inputted through a front surface of a 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, if the broadcasting company operates the first to third broadcasting channels, the broadcasting provider may be a broadcasting company (e.g., MBN) or a first to a third broadcasting channel (for example, CHMBN -News, CH MBN-Drama, CH MBN-Sports).

For example, according to the Advanced Television Systems Committee-Mobile / Handheld (ATSC-M / H) (one of the mobile broadcast 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 includes broadcast guide information . 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), or broadcast guide information of at least one broadcast provider assigned to the first ensemble 531 Information including guide 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 650 (or an SGDU including a preview fragment) whose data type is preview data, an SGDU Or an SGDU 660 that includes an interactive fragment).

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 a specific SGDU using the information associated with the confirmed matching information can do.

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 a fragment type = 1, a corresponding SGDU has a service fragment. When fragment type = 2, a corresponding SGDU has a content fragment. When fragment type = 3, a corresponding SGDU has a schedule fragment. If the SGDU has a preview data fragment and the fragment type = 9, the 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.

9, when the fragment type information of the SGDU is not separately provided using the SGDD and the SGDU, the mobile terminal 100 transmits the actual broadcast guide information included in the SGDU (for example, 902) to verify the data type of the SGDU.

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, the description information in the ATSC-MH may include a current program descriptor. Referring to FIG. 10, the current program descriptor includes at least one of a current program start time 1001, a current program end time (not shown), a current time program duration) 1002, a title of the broadcast program 1003, and the like.

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.

Referring to FIG. 11, a process of searching for and outputting specific broadcast-related information using a broadcast-related reference time during reception of a specific broadcast program will be described.

As shown in FIG. 11, the mobile terminal 100 receives the first description information of the first broadcast program and the first broadcast program of the first broadcast channel through the wireless communication unit 110 (S 1110). In particular, the first broadcast program and the first explanation information may be received using the broadcast receiving module 111. [

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 broadcast program received in the receiving step S1110 is changed, its description 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 outputs the first broadcast program received at the receiving step S1110 through the output unit 150 under the control of the controller 180 at step S1120.

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 data including reference time information (hereinafter referred to as reference time data) is received during the execution of the receiving and outputting steps S1110 and S1120 (S1130) .

Here, the reference time data may be provided from the network at regular time intervals as data including current time information in relation to broadcast reception / output. For example, in the ATSC-MH, it is possible to provide reference time information through a Network Time Protocol (NTP) packet (an example of reference time data), and an NTP packet can be provided in an ensemble unit.

In addition, the mobile terminal 100 can retrieve the specific broadcast-related information corresponding to the broadcast-related reference time among the broadcast-related information previously stored in the memory 160, and store the current time included in the reference time data as the broadcast- .

If it is determined in step S1130 that the reference time data has not been received, the mobile terminal 100 receives the first broadcast time information from the first description information received in step S1110, under the control of the control unit 180, (S1140).

For example, the control unit 180 can extract the broadcast start time / broadcast end time or broadcast time of the first broadcast program from the first explanation information as the first broadcast time information (see FIG. 10).

In step S1150, the mobile terminal 100 sets a broadcast-related reference time using the first broadcast time information extracted in the extracting step S1140, under the control of the controller 180. [

For example, the mobile terminal 100 may determine whether the broadcast start time of the first broadcast program, the arbitrary time of the broadcast end time of the first broadcast program, the broadcast end time of the first broadcast program, At least one of the arbitrary times from the broadcast start time of the broadcast program to the time before the broadcast time elapse can be set as the broadcast related reference time.

The mobile terminal 100 may set the time selected by the user among the times that can be set as the broadcast related reference time as the broadcast related reference time or automatically set the time selected by the control unit 180 as the broadcast related reference time .

The mobile terminal 100 searches for specific broadcast related information corresponding to the broadcast related reference time set in the setting step S1150 from the broadcast related information already stored in the memory 160 under the control of the controller 180 S1160).

Here, the broadcast-related information may be received periodically or at any time and stored in the memory 160. [ In the case where the stored broadcast related information and the newly received broadcast related information are different, the mobile terminal 100, when the valid period of the previously stored broadcast related information expires, The broadcast-related information previously stored on the basis of the broadcast-related information can be updated.

The mobile terminal 100 is provided with program detailed information for the first broadcast program, broadcast information of the first broadcast channel (or other broadcast channel) broadcast after the broadcast related reference time, It is possible to retrieve schedule information composed of programs.

Furthermore, the detailed program information for the first broadcast program may include interactive service information associated with the first broadcast program.

Hereinafter, the setting step S1150 will be described in detail with reference to FIGS. 12A to 14D. For convenience of explanation, the description will be limited to the case of setting the broadcast-related reference time using the broadcast start time in the broadcast time information.

12A and 12B, when the menu item 1211 of search of broadcast-related information is selected from the user during the output of the first broadcast program, the mobile terminal 100 may receive a search command signal of broadcast-related information (Fig. 12A). At this time, the search command signal of the broadcast-related information can be input not only when the corresponding menu item is selected but also when the key or key region designated in the search command of the broadcast-related information is selected.

The mobile terminal 100 determines whether or not to receive the reference time data when receiving the search command signal of the broadcast related information. If it is determined that the reference time data is not received, the mobile terminal 100 sets the broadcast start time of the first broadcast program to Related reference time, and search for specific broadcast-related information corresponding to the set broadcast-related reference time (FIG. 12B).

At this time, the mobile terminal 100 may output the notification information 1220 informing that the broadcast start time of the first broadcast program is set as the broadcast related reference time, as the reference time data is not received (FIG. 12B) . The notification information 1220 can be output using not only text but also a voice signal, a ring tone, vibration, a lamp, and the like.

13A and 13B, the mobile terminal 100 confirms whether or not the reference time data is periodically received during the output of the first broadcast program. If it is determined that the reference time data is not received, Can be set as the broadcast related reference time (Fig. 13A).

At this time, the mobile terminal 100 can notify that the broadcast start time of the first broadcast program is set as the broadcast related reference time by using the pop-up window 1310, by the absence of the reference time data.

When the user selects the menu item 1321 for retrieving broadcast-related information from the user during the output of the first broadcast program, the mobile terminal 100 confirms whether the user has received the reference time data (1331) And a pop-up window 1330 for selecting any of the broadcast-related information searches 1332 at the set broadcast related reference time (FIG. 13B).

In FIG. 13B, when the reception confirmation 1331 of the reference time data is selected, the mobile terminal 100 can confirm whether or not the reference time data is received (FIG. 14A).

14A, when the mobile terminal 100 confirms that the reference time data has been received, the mobile terminal 100 determines whether to reset the broadcast related reference time using the reference time information included in the received reference time data, (Fig. 14 (b)).

Alternatively, when it is confirmed that the reference time data is received in FIG. 14A, the mobile terminal 100 can automatically reset the broadcast-related reference time using the reference time information included in the received reference time data 14b (b)}.

When the mobile terminal 100 determines that the reference time data is not received in FIG. 14A, the mobile terminal 100 displays a pop-up window 1430 for allowing the user to select whether to search for broadcast-related information at the broadcasting-related reference time set in FIG. (Fig. 14C (a)).

When the example 1431 is selected in Fig. 14C (a), the mobile terminal 100 can search for broadcast related information corresponding to the broadcasting related reference time set in Fig. 13A (Fig. 14C (b)).

13B, when the broadcast related information search 1332 is selected at the broadcast related reference time in FIG. 13B, the broadcast related information corresponding to the broadcast related reference time set in FIG. 13A can be retrieved (FIG. 14D) .

11, the mobile terminal 100 outputs the specific broadcast related information searched in the search step S1160 through the output unit 150 under the control of the control unit 180 (S1170).

In the output step S1170, the detailed broadcasting information of the first broadcasting program currently being output, the broadcasting channel providing the first program or the schedule information of the other broadcasting channel (reference after the broadcasting related reference time) is outputted as the specific broadcasting related information .

Hereinafter, the output step S1170 will be described in detail with reference to the accompanying drawings.

15A and 15B are data structure diagrams of the broadcast related information corresponding to the broadcast related reference time.

For convenience of explanation, it is assumed that the mobile terminal 100 is receiving / outputting a C program provided from an MBC (an example of a broadcast channel), and sets a broadcasting start time of 17:00 as a broadcast related reference time .

15A, broadcast related information (or broadcast guide information) includes an SGDU (hereinafter referred to as a service SGDU) 1510 to which a service fragment is set, a plurality of SGDUs (hereinafter, referred to as content SGDU) 1520 to 1560 to which a content fragment is set, . ≪ / RTI >

Here, the service SGDU includes matching information (e.g., service ID) with the content fragment, and the content SGDU includes service identification information (e.g., ServiceReference), broadcast start time / broadcast end time , And the name of the corresponding program (Title).

The mobile terminal 100 confirms the service SGDU including the service ID of the currently used broadcast channel "MBC ", and adds the service ID" MBC "included in the confirmed service SGDU and the broadcast related reference time" Content SGDUs 1540 to 1560 that are satisfied can be searched.

For example, when the identification information (e.g., Service Reference) of the content SGDU is "MBC ", and the broadcast related reference time exists between the broadcast start time and the broadcast end time included in the content SGDU Content SGDUs 1540-1560.

15B, the mobile terminal 100 may display a schedule list including the broadcast start time / broadcast end time and the program name included in each of the extracted contents SGDUs 1540 to 1560 .

Meanwhile, although not shown in the drawing, the mobile terminal 100 may display a schedule list corresponding to a broadcast channel other than the current broadcast channel.

For example, the mobile terminal 100 extracts a content SGDU having a broadcast related reference time among all the previously stored content SGDUs between the broadcast start time and the broadcast end time, A schedule list including start time / broadcast end time and program name can be displayed for each broadcast channel.

16A to 16C are screen diagrams for outputting broadcast-related information corresponding to a broadcast-related reference time.

For convenience of explanation, it is assumed that the mobile terminal 100 is outputting the first broadcast program of the first broadcast channel and sets the broadcast start time of the first broadcast program as the broadcast related reference time.

16A, the mobile terminal 100 may output detailed broadcast information (broadcast time, performer information, plot, past broadcast view, preview, etc.) 1610 of the first broadcast program currently being output have. For example, the detailed broadcasting information of the first broadcasting program may be included in a content SGDU corresponding to the first broadcasting program (for example, ServiceReference = first broadcasting channel, Title = first broadcasting program).

Alternatively, as shown in FIG. 16B, the mobile terminal 100 displays a schedule list 1620 of a first broadcast channel providing a first broadcast program currently being output, Broadcast programs provided after the time may be included.

Alternatively, as shown in FIG. 16C, the mobile terminal 100 displays a schedule list 1630 of other broadcast channels as well as a first broadcast channel currently in use, Broadcast programs provided after the relevant reference time may be included.

More specifically, the user can operate the direction keys 1622 and 1623 to select a broadcast channel for which a schedule list is to be provided.

17 is a data structure diagram of interactive service information corresponding to the broadcast-related reference time.

For convenience of explanation, the mobile terminal 100 has been receiving / outputting the B program provided from the MBC (an example of the broadcast channel) and has set the broadcasting start time of 16:20 as the broadcast related reference time I suppose.

17, the broadcast-related information (or broadcast guide information) includes a plurality of SGDUs (hereinafter referred to as " SGDUs ") having SGDUs (hereinafter, referred to as service SGDUs) 1510 and a plurality of Interactive Fragment An SGDU 1750 having an access fragment set including interactive SGDUs 1710 to 1730, an SGDU 1740 having a schedule fragment set and channel information for receiving specific interactive service information may be included have.

The mobile terminal 100 confirms the service SGDU including the service ID of the currently used broadcast channel "MBC ", and the service ID" MBC "included in the confirmed service SGDU and the broadcast related reference time" Quot; "is satisfied. ≪ / RTI >

For example, the mobile terminal 100 may include an interactive service start time (StartTime) and an interactive service end time (EndTime), which are included as a value of an InteractivityWindow among a plurality of interactivity SGDUs 1710 to 1730, It is possible to search the interactivity SGDU 1720 to which the time "16:20" belongs.

Then, the mobile terminal 100 transmits the schedule SGDU 1720 having the same value as the schedule reference value "MBC_INT_2" included in the searched interaction activity SGDU 1720 as the ID value (idRef) of the Interactivity Data Reference (1740).

Then, the mobile terminal 100 searches for an access fragment 1750 matching with the schedule ID "MBC_INT_SCH" of the schedule SGDU 1740 and "MBC" which is the service reference (Serivice Reference), and the retrieved access It is possible to open the corresponding channel using the channel connection information included in the fragment 1750 and receive the interactive service information corresponding to the interactivity SGDU 1720 through the open channel.

For example, the interactivity service information may be received in the form contained in an Interactivity Media Document (IMD) file.

When receiving a specific IMD file, when the group ID of a particular IMD file is the same as the IMD pointer (Interactivity Media Document Pointer) of the interaction SGDU 1720, the mobile terminal 100 transmits the IMD file SGDU 1720. In this case,

18A and 18B are screen configuration diagrams for outputting interactive service information corresponding to a broadcast related reference time.

As shown in FIGS. 18A and 18B, the mobile terminal 100 may search for interactive service information corresponding to the broadcast program currently being output and output the interactive service information on the screen.

At this time, the mobile terminal 100 may set the broadcast start time of the broadcast program currently being output to the broadcast-related current time, and may search the interactive service information corresponding to the broadcast-related current time.

Meanwhile, the mobile terminal 100 may perform the determination step S1130 periodically or at any time after the setting of the broadcast-related reference time using the first broadcast time information, under the control of the controller 180. [

When it is determined that the reference time data has been received, the controller 180 cancels the predetermined broadcast-related reference time, resets the broadcast-related reference time using the reference time information included in the received reference time data, If it is determined that the data is still not received, the preset broadcast-related reference time can be maintained.

Next, referring to FIG. 19, a description will be made of a process of searching for and outputting specific broadcast-related information using the broadcast-related reference time when switching to a specific broadcast program.

As shown in FIG. 19, the mobile terminal 100 receives and outputs the first broadcast program of the first broadcast channel (S1910).

In addition, the mobile terminal 100 may receive the first explanation information for the first broadcast program in the reception and output step S1910.

Referring to the receiving and outputting step S1910, the receiving and outputting steps S1110 and S1120 of FIG. 11 are referred to.

When the second broadcasting program is selected before or after completion of reception and output of the first broadcasting program, the mobile terminal 100 transmits the receiving and outputting broadcasting program to the first broadcasting station The program is switched to the second program (S1920).

Then, the mobile terminal 100 receives the second explanatory information on the first broadcast program and the second broadcast program, which are transmitted through the wireless communication unit 110 (S1930).

For example, when it is determined that the broadcast time information or program name included in each of the currently received description information and the previously received description information has changed, the mobile terminal 100 may detect switching of the broadcast program. That is, the first and second explanatory information may be different from the broadcast time information or program name contained in the first and second explanatory information, respectively.

Alternatively, the mobile terminal 100 can switch a broadcast program when receiving a broadcast program change command signal from a user.

The mobile terminal 100 may output the second broadcast program received in the receiving step S1930 through the output unit 150 under the control of the controller 180. [

According to the control of the control unit 180, the mobile terminal 100 determines whether the reference time data is received during reception and output of the second broadcast program (S1940). For the reference time data, the above-mentioned portion is referred to.

If the mobile terminal 100 determines in step S1940 that the reference time data has not been received, the mobile terminal 100 extracts the second broadcast time information from the second explanation information received in the receiving step S1930 under the control of the controller 180 (S1950).

For example, the control unit 180 can extract the broadcast start time / broadcast end time or broadcast time of the second broadcast program from the second explanation information as the second broadcast time information (see FIG. 10).

In step S1960, the mobile terminal 100 sets the broadcast-related reference time using the second broadcast time information extracted in the extracting step S1950, under the control of the controller 180. [

In the setting step S1960, if there is a broadcasting-related reference time preset before switching to the second broadcasting program, the control unit 180 cancels the predetermined broadcasting-related reference time, The broadcast-related reference time can be reset using time information.

For example, the preset broadcast-related reference time may be set using the broadcast time information of the first broadcast program (the program output prior to the switching of the second broadcast program) Or may be set using the current time included in the reference time data.

For example, the mobile terminal 100 may determine whether the broadcast start time of the second broadcast program, the arbitrary time of the broadcast end time of the first broadcast program, the broadcast end time of the first broadcast program, At least one of the arbitrary times from the broadcast start time of the broadcast program to the time before the broadcast time elapse can be set as the broadcast related reference time.

The mobile terminal 100 may set the time selected by the user among the times that can be set as the broadcast related reference time as the broadcast related reference time or automatically set the time selected by the control unit 180 as the broadcast related reference time .

The mobile terminal 100 retrieves specific broadcast related information corresponding to the broadcast related reference time set in the setting step S1960 from the broadcast related information already stored in the memory 160 under the control of the controller 180 ).

For the search step S1970, the description of the search step S1160 in FIG. 11 is referred to.

Hereinafter, with reference to FIG. 20A to FIG. 20D, a detailed description will be given of a process of resetting a broadcast-related reference time at the time of switching a broadcast program. For convenience of explanation, the description will be limited to the case of setting the broadcast-related reference time using the broadcast start time in the broadcast time information.

20A, when the reception and output target broadcast program is switched from the first broadcast program to the second broadcast program, the mobile terminal 100 notifies the change of the broadcast program and instructs the user to select whether to reset the broadcast- A pop-up window 2010 can be displayed.

20B, the mobile terminal 100 can determine whether or not to receive the reference time data when the reset (YES) is selected in FIG. 20A. In particular, the mobile terminal 100 can determine whether or not the reference time data has been received after the switch to the second broadcast program.

20C, when the mobile terminal 100 determines that the reference time data is received in FIG. 20B, the mobile terminal 100 sets the reference time (or the current time) included in the reference time data as the broadcast-related reference time, (A).

Alternatively, if it is determined that the reference time data is not received in FIG. 20B, the mobile terminal 100 may set the broadcast start time of the second broadcast program to the broadcast related reference time and notify the user thereof (b).

20D, when the receiving and outputting target broadcasting program is switched from the first broadcasting program to the second broadcasting program, the mobile terminal 100 does not determine whether or not the reference time data is received, It is possible to set the broadcast start time of the program as the broadcast related reference time and notify the user thereof.

Although not shown in the drawing, the broadcast-related reference time resetting operation can be performed only when a search command signal of the broadcast-related information is input from the user, even if the broadcast program is changed.

Also, although not shown in the drawing, even when the broadcast start time of the switched broadcast program is set as the broadcast-related reference time, if the reception of the reference time data is detected, the current time included in the received reference time data is broadcast- Can be reset to the reference time.

Returning to FIG. 19, the mobile terminal 100 outputs the specific broadcast-related information searched in the search step S1970 through the output unit 150 under the control of the control unit 180 (S1980).

In the output step S1980, detailed broadcast information of the second broadcast program currently being output, schedule information of the broadcast channel providing the second program or other broadcast channel (reference after broadcast reference time) is output as specific broadcast related information .

Hereinafter, the process of outputting broadcast-related information at the time of switching a broadcast program will be described in detail with reference to FIG.

For convenience of explanation, it is assumed that the mobile terminal 100 is outputting the second broadcast program of the first broadcast channel and sets the broadcast start time of the second broadcast program as the broadcast-related reference time.

As shown in FIG. 21, the mobile terminal 100 displays a schedule list 2110 of a first broadcast channel that provides a second broadcast program currently being output, and a schedule list 2110 displays, May be included in the broadcast program.

Next, referring to FIG. 22, a description will be made of a process of searching for and outputting specific broadcast-related information using a broadcast-related reference time when switching to a broadcast channel.

As shown in FIG. 22, the mobile terminal 100 receives and outputs the first broadcast program of the first broadcast channel (S2210).

In addition, the mobile terminal 100 may receive the first explanation information for the first broadcast program in the receiving and outputting step S2210.

Referring to the receiving and outputting step S2210, the receiving and outputting steps S1110 and S1120 of FIG. 11 are referred to.

The mobile terminal 100 switches from the currently used first broadcast channel to the second broadcast channel according to the broadcast channel switch command signal input from the user (S2220). For example, it is assumed that a third broadcast program is provided on the second broadcast channel at the time of switching to the second broadcast channel.

In step S2230, the mobile terminal 100 receives the third and third descriptive information about the third broadcast program and the third broadcast program provided by the second broadcast channel through the wireless communication unit 110, respectively.

For example, when it is determined that the broadcast time information or the program name included in the currently received description information and the previously received description information has changed, or when the broadcast channel switching command signal is input from the user , It is possible to detect the switching of the broadcast channel. That is, the first and third explanatory information may be different from the broadcast time information or the program name included therein.

The mobile terminal 100 may output the third broadcast program received in the receiving step S2230 through the output unit 150 under the control of the control unit 180. [

According to the control of the control unit 180, the mobile terminal 100 determines whether the reference time data is received during reception and output of the third broadcast program (S2240). For the reference time data, the above-mentioned portion is referred to.

If the mobile terminal 100 determines in step S2240 that the reference time data has not been received, the mobile terminal 100 extracts the third broadcast time information from the third explanation information received in the receiving step S2230 under the control of the controller 180 (S2250).

For example, the control unit 180 can extract the broadcast start time / broadcast end time or broadcast time of the second broadcast program from the second explanation information as the second broadcast time information (see FIG. 10).

In step S2260, the mobile terminal 100 sets a broadcast related reference time using the third broadcast time information extracted in the extracting step S2250, under the control of the controller 180. [

In the setting step S2260, if there is a broadcasting-related reference time preset before switching to the second broadcasting channel, the control unit 180 cancels the predetermined broadcasting-related reference time, The broadcast-related reference time can be reset using time information.

For example, the preset broadcast-related reference time may be set using broadcast time information of a first broadcast program (a program output prior to switching to the second broadcast channel), or may be set prior to switching to the second broadcast channel Or may be set using the current time included in the received reference time data.

The mobile terminal 100 retrieves the specific broadcast related information corresponding to the broadcast related reference time set in the setting step S2260 from the broadcast related information already stored in the memory 160 under the control of the controller 180 ).

For the search step S2270, a description of the search step S1160 in Fig. 11 is referred to.

Hereinafter, with reference to FIG. 23A and FIG. 23B, a detailed description will be given of a process of resetting a broadcast related reference time when a broadcast channel is switched. For convenience of explanation, the description will be limited to the case of setting the broadcast-related reference time using the broadcast start time in the broadcast time information.

Referring to FIG. 23A, when the mobile terminal 100 switches from the first broadcast channel to the second broadcast channel by operating the channel changeover key 2301, the mobile terminal 100 informs the user of the change of the broadcast channel, Or a pop-up window 2310 that allows the user to select whether or not to select.

23B, the mobile terminal 100 sets the broadcast start time of the third broadcast program currently provided on the second broadcast channel as the broadcast-related reference time, when the reset ("YES") is selected in FIG. 23A The user can be notified.

On the other hand, although not shown in the drawing, the mobile terminal 100 can determine whether or not to receive the reference time data after switching to the second broadcast channel, if the reset ('YES') is selected in FIG. 23A. When it is determined that the reference time data is received, the reference time (or the current time) included in the reference time data is set as the broadcast-related reference time, and when it is determined that the reference time data is not received, The broadcast start time can be set as the broadcast related reference time.

In addition, even when the broadcast channel is changed, the broadcast related reference time resetting operation can be performed only when the search instruction signal of the broadcast-related information is input from the user.

In addition, even when the broadcast start time of the broadcast program currently provided in the switched broadcast channel is set as the broadcast-related reference time, if the reception of the reference time data is detected, the current time included in the received reference time data is stored in the broadcast- It can be reset to the time.

22, the mobile terminal 100 outputs the specific broadcast-related information searched in the search step S2270 through the output unit 150 under the control of the controller 180 (S2280).

In the output step S2280, detailed broadcast information of the third broadcast program being currently outputted, schedule information of the broadcast channel providing the third program or other broadcast channel (reference after broadcast reference time) is output as specific broadcast-related information .

According to the present invention, when the reference time data is not received, the mobile terminal 100 may set the current time provided by the terminal itself or the current time provided from the external server (or terminal) as the broadcast related reference time .

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 first flowchart of a broadcast control method of a mobile terminal according to the present invention.

12A to 14D are screen diagrams illustrating a procedure for setting a broadcast-related reference time according to the present invention.

15A and 15B are data structure diagrams of broadcast-related information corresponding to broadcast-related reference times according to the present invention.

16A to 16C are screen configuration diagrams for outputting broadcast related information corresponding to a broadcast related reference time according to the present invention.

17 is a data structure diagram of interactive service information corresponding to a broadcast related reference time according to the present invention.

18A and 18B are screen configuration diagrams for outputting interactive service information corresponding to a broadcast related reference time according to the present invention.

19 is a second flowchart of a broadcast control method of a mobile terminal according to the present invention.

20A to 20D are screen diagrams illustrating a process of resetting a broadcast-related reference time when switching a broadcast program according to the present invention.

FIG. 21 is a diagram illustrating a screen for outputting broadcast-related information corresponding to a broadcast related reference time reset at the time of switching a broadcast program according to the present invention. FIG.

FIG. 22 is a third flowchart of a broadcast control method of a mobile terminal according to the present invention; FIG.

FIGS. 23A and 23B are screen diagrams illustrating a process of resetting a broadcast-related reference time when a broadcast channel is switched according to the present invention. FIG.

Claims (20)

A wireless communication unit for receiving a first broadcast program of the first broadcast channel and first explanatory information of the first broadcast program; An output unit for outputting the received first broadcast program; A memory for storing broadcast related information; And Extracting first broadcast time information of the first broadcast program from the received first description information if data including the reference time information is not received, extracting first broadcast time information of the first broadcast program from the received first description information, And a controller for searching for broadcast-related information corresponding to the set broadcast-related reference time from the broadcast-related information stored in the memory, Wherein the control unit is configured to receive the second explanatory information for the second broadcast program and the second broadcast program switched through the wireless communication unit when the first broadcast program is switched to the second broadcast program of the first broadcast channel Extracting second broadcast time information of the second broadcast program from the received second description information if the data including the reference time information is not received, extracting second broadcast time information of the second broadcast program from the received second description information, Related reference time and searches for specific broadcast-related information corresponding to the reset reference time. The method according to claim 1, The first explanation information includes: A broadcast time, a broadcast time, and a name information of the first broadcast program currently being received, Wherein the first broadcast time information of the first broadcast program comprises: The broadcast start time, the broadcast end time, and the broadcast time. 3. The apparatus of claim 2, Sets the broadcast-related reference time as any one of a broadcast start time, a broadcast end time, and a broadcast time of the first broadcast program. The apparatus of claim 1, Wherein the program information includes program detail information for the first broadcast program broadcasted at the broadcast related reference time, schedule information including broadcast programs of the first broadcast channel broadcast after the broadcast reference time, And schedule information including broadcast programs of other broadcast channels other than the first broadcast channel broadcast after the broadcast related reference time. 5. The method of claim 4, wherein the program detailed information for the first broadcast program comprises: And interactive service information associated with the first broadcast program. The method according to claim 1, Further comprising a user input unit for receiving a search command signal of the broadcast related information from outside, Wherein, And searching for specific broadcast related information corresponding to the set broadcast related reference time when the search command signal is input through the user input unit. delete The apparatus of claim 1, And detects switching from the first explanation information to the second description information to the second broadcast program. The apparatus of claim 1, Receiving the third description information of the third broadcast program and the third broadcast program of the second broadcast channel switched through the wireless communication unit when the first broadcast channel is switched to the second broadcast channel, Extracting third broadcast time information of the third broadcast program from the received third description information if the data including the information is not received and extracting the broadcast related reference time using the extracted third broadcast time information And retrieves specific broadcast-related information corresponding to the reset broadcast-related reference time. The apparatus of claim 1, And determines whether or not to receive data including the reference time information at an arbitrary time or periodically. A wireless communication unit for receiving a first broadcast program of the first broadcast channel and first explanatory information of the first broadcast program; An output unit for outputting the received first broadcast program; A memory for storing broadcast related information; And Extracting first broadcast time information of the first broadcast program from the received first description information if data including the reference time information is not received, extracting first broadcast time information of the first broadcast program from the received first description information, And a controller for searching for broadcast-related information corresponding to the set broadcast-related reference time from the broadcast-related information stored in the memory, Wherein the control unit receives the data before setting the broadcast-related reference time using the first broadcast time information, and sets the broadcast-related reference time using the reference time information included in the received data, . A wireless communication unit for receiving a first broadcast program of the first broadcast channel and first explanatory information of the first broadcast program; An output unit for outputting the received first broadcast program; A memory for storing broadcast related information; And Extracting first broadcast time information of the first broadcast program from the received first description information if data including the reference time information is not received, extracting first broadcast time information of the first broadcast program from the received first description information, And a controller for searching for broadcast-related information corresponding to the set broadcast-related reference time from the broadcast-related information stored in the memory, Wherein the control unit releases the broadcast related reference time set using the first broadcast time information when the data is received after setting the broadcast related reference time using the first broadcast time information, And resets the broadcast related reference time using the included reference time information. The image processing apparatus according to claim 1, And outputs the retrieved specific broadcast related information under the control of the control unit. The method comprising: receiving a first broadcast program of a first broadcast channel and first explain information of the first broadcast program; Outputting the received first broadcast program; Determining whether data including reference time information is received; Extracting first broadcast time information of the first broadcast program from the received first description information if the determination result is not received; Setting a broadcast-related reference time using the extracted first broadcast time information, searching specific broadcast-related information corresponding to the set broadcast-related reference time from previously stored broadcast-related information, And And switching from the first broadcast program to a second broadcast program of the first broadcast channel, Wherein the receiving step receives the second description information for the second broadcast program and the second broadcast program, Wherein the extracting step extracts second broadcast time information of the second broadcast program from the received second explain information when the data including the reference time information is not received, Wherein the setting step comprises the steps of: resetting the broadcast related reference time using the extracted second broadcast time information; Wherein the searching step searches the specific broadcast-related information corresponding to the reset reference time of the broadcast. 15. The method according to claim 14, Wherein the broadcast-related reference time is set to any one of a broadcast start time, a broadcast end time, and a broadcast time of the first broadcast program. 15. The method of claim 14, Related information, program information for the first broadcast program broadcasted at the broadcast-related reference time, schedule information composed of broadcast programs for the first broadcast channel broadcast after the broadcast-related reference time, And scheduling information including broadcast programs of other broadcast channels except for the first broadcast channel. delete delete The method comprising: receiving a first broadcast program of a first broadcast channel and first explain information of the first broadcast program; Outputting the received first broadcast program; Determining whether data including reference time information is received; Extracting first broadcast time information of the first broadcast program from the received first description information if the determination result is not received; Setting a broadcast-related reference time using the extracted first broadcast time information; And Related information corresponding to the set broadcast-related reference time from the pre-stored broadcast-related information, Wherein the setting step releases the broadcast related reference time set using the first broadcast time information when the data is received after setting the broadcast related reference time using the first broadcast time information, Related reference time using the reference time information included in the broadcast time information. The method comprising: receiving a first broadcast program of a first broadcast channel and first explain information of the first broadcast program; Outputting the received first broadcast program; Determining whether data including reference time information is received; Extracting first broadcast time information of the first broadcast program from the received first description information if the determination result is not received; Setting a broadcast-related reference time using the extracted first broadcast time information; Retrieving the specific broadcast related information corresponding to the set broadcast related reference time from the stored broadcast related information; And And outputting the searched specific broadcast related information.

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