KR102056166B1 - Image display apparatus, server and method for operating the same - Google Patents

Abstract

The present invention relates to an image display apparatus, a server and a method of operating the same. According to an embodiment of the present invention, a method of operating an image display apparatus includes displaying an object including a plurality of broadcast program items, and when one of the plurality of broadcast program items is selected, the selected broadcast is selected by the remote control apparatus. Transmitting channel information about the program, receiving a broadcast signal about the broadcast program corresponding to the channel information from the set-top box, and displaying the received broadcast program. As a result, the user's ease of use can be improved.

Description

Image display apparatus, server and method for operating the same}

The present invention relates to an image display apparatus, a server, and an operation method thereof, and more particularly, to an image display apparatus, a server, and an operation method thereof, which can improve user convenience.

The image display device is a device having a function of displaying an image that a user can watch. The user can watch the broadcast through the image display device. The video display device displays a broadcast selected by a user on a display among broadcast signals transmitted from a broadcasting station. Currently, broadcasting is shifting from analog broadcasting to digital broadcasting worldwide.

Digital broadcasting refers to broadcasting for transmitting digital video and audio signals. Digital broadcasting is more resistant to external noise than analog broadcasting, so it has less data loss, is advantageous for error correction, has a higher resolution, and provides a clearer picture. In addition, unlike analog broadcasting, digital broadcasting is capable of bidirectional services.

An object of the present invention is to provide a video display device, a server and an operation method thereof that can improve the user's ease of use.

In addition, another object of the present invention is to provide a video display device that can easily control the set-top box using a remote control device.

Another object of the present invention is to provide an image display apparatus, a server, and a method of operating the same, which can easily display detailed information related to a broadcast image displayed during a broadcast image display.

According to another aspect of the present invention, there is provided a method of operating an image display apparatus, including displaying an object including a plurality of broadcast program items and remotely selecting one of the plurality of broadcast program items. Transmitting to the control apparatus channel information on the selected broadcast program, receiving a broadcast signal about the broadcast program corresponding to the channel information from the set-top box, and displaying the received broadcast program.

In addition, an operation method of an image display apparatus according to an embodiment of the present invention for achieving the above object, receiving a broadcast signal, displaying a broadcast video corresponding to the received broadcast signal, and the channel name in the broadcast video Or if an image representing a program name exists, extracting an image representing a channel name or a program name, transmitting the extracted image to a server, and receiving detailed information related to the broadcast image displayed from the server. And displaying the received detailed information.

In addition, the operation method of the server according to an embodiment of the present invention for achieving the above object, receiving an image representing a channel name or a program name from the image display device, and based on the received image, broadcasting of the image display device Identifying a channel, receiving a detailed information request command relating to a broadcast image displayed on the image display apparatus, and transmitting detailed information related to the displayed broadcast image to the image display apparatus; It includes.

In addition, the video display device according to an embodiment of the present invention for achieving the above object, a display for displaying an object including a plurality of broadcast program items, and when any one of a plurality of broadcast program items is selected, remote control The apparatus may be configured to display a user input interface unit for transmitting channel information on the selected broadcast program, an external device interface unit for receiving a broadcast signal about a broadcast program corresponding to the channel information from the set-top box, and a received broadcast program. It includes a control unit.

In addition, an image display apparatus according to an embodiment of the present invention for achieving the above object, the broadcast receiving unit for receiving a broadcast signal, a display for displaying a broadcast image corresponding to the received broadcast signal, and the server to exchange data When there is an image representing a channel name or a program name in the network interface unit and a broadcast image, the network interface unit extracts an image representing a channel name or a program name, controls to transmit the extracted image to a server, and relates to the broadcast image displayed from the server. And a control unit which receives the detailed information and controls to display the received detailed information.

In addition, the server according to an embodiment of the present invention for achieving the above object, the network interface unit for exchanging data with the image display device, and when receiving an image representing the channel name or program name from the image display device, the received image And, upon receiving the detailed information request command regarding the broadcast image displayed on the image display apparatus, transmitting the detailed information related to the displayed broadcast image to the image display apparatus. And a processor that controls to do so.

According to an embodiment of the present invention, when any one of a plurality of broadcast program items is selected, the video display device transmits channel information about the selected broadcast program to a remote control device and transmits the channel information on the broadcast program corresponding to the channel information. By receiving the relevant broadcast signal from the set-top box and displaying it, it is possible to simply watch the desired broadcast program.

On the other hand, when selecting any one of a plurality of broadcast program items, even if there is no channel number information can be selected based on the program, the user can accurately watch the desired broadcast program.

On the other hand, the remote control device and the set-top box is performed by the first communication method, and the image display device and the remote control device is performed by the second communication method, as a single remote control device, the image display device and the set-top box The box can be easily controlled.

On the other hand, according to another embodiment of the present invention, the video display device, it is possible to simply display the detailed information related to the broadcast video displayed during the broadcast video display from the server, thereby increasing the user's ease of use have.

On the other hand, the server receives an image representing the channel name or the program name from the video display device, and based on the received image, the server can easily identify the broadcast channel of the video display device.

1 is a diagram illustrating an image display system according to an exemplary embodiment of the present invention.
2 is a block diagram illustrating an image display apparatus according to an exemplary embodiment of the present invention.
3A to 3B are internal block diagrams of a set top box according to an embodiment of the present invention.
4 is an internal block diagram of the controller of FIG. 2.
5 is a diagram illustrating a control method of the remote controller of FIG. 2.
6 is an internal block diagram of the remote control device of FIG. 2.
7 is an internal block diagram of the server of FIG. 1.
8 is a flowchart illustrating a method of operating an image display apparatus according to an embodiment of the present invention.
9 to 16 are diagrams for explaining various examples of the operation method of FIG. 8 or 9.
17 is a flowchart illustrating a method of operating an image display apparatus according to another embodiment of the present invention.
18 to 20E are views referred to for describing various examples of the operation method of FIG. 17.

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

The suffixes "module" and "unit" for components used in the following description are merely given in consideration of ease of preparation of the present specification, and do not impart any particular meaning or role by themselves. Therefore, the "module" and "unit" may be used interchangeably.

1 is a diagram illustrating an image display system according to an exemplary embodiment of the present invention.

Referring to FIG. 1, an image display system 10 according to an exemplary embodiment of the present invention may include an image display apparatus 100, a set top box 250, and a server 500.

The set-top box 250 may receive a broadcast signal, signal process the signal, and transmit the processed broadcast image to the video display device.

To this end, the set top box 250 may include a broadcast receiver (272 of FIG. 3A) including a tuner, a demodulator, and the like. Meanwhile, the set top box 250 may receive a broadcast video through the network interface unit 255 of FIG. 3B in addition to the broadcast receiver.

The set top box 250 may receive a terrestrial broadcast signal, a satellite broadcast signal, a cable broadcast signal, an IPTV broadcast signal, and the like.

Meanwhile, in addition to receiving broadcast signals, the set-top box 250 may read media signals from a storage medium such as an optical disc or a memory storage device and process the signals.

The video display device 100 may receive a broadcast signal through an antenna or may receive a broadcast signal from the set top box 250.

When the image display apparatus 100 receives the broadcast signal through the antenna, the image display apparatus 100 may receive the broadcast signal through the tuner unit 110 of FIG. 2. The broadcast signal received through the antenna may be a terrestrial digital broadcast signal, a terrestrial analog broadcast signal, a satellite digital broadcast signal, or the like.

When the image display device 100 receives the broadcast signal through the set top box 250, the image display device 100 may receive the broadcast signal through the external device interface unit 130 of FIG. 2. The broadcast signal received through the set top box 250 may be a terrestrial digital broadcast signal, a terrestrial analog broadcast signal, a cable digital broadcast signal, a cable analog broadcast signal, a satellite digital broadcast signal, or an IPTV broadcast signal.

The video display device 100 may display an object including a plurality of broadcast program items according to an embodiment of the present invention. Such an object may be an object based on real-time viewership information received from the server 500.

In addition, when any one of a plurality of broadcast program items is selected, the video display device 100 may transmit channel information about the selected broadcast program to the remote control apparatus 200. In addition, the remote control apparatus 200 may transmit channel number information on the selected broadcast program to the set-top box 250 based on the channel information received from the image display apparatus 100.

Accordingly, the set top box 250 may change a channel to transmit the selected broadcast program, receive the broadcast program, and transmit the received broadcast program to the image display apparatus 100. Accordingly, the video display device 100 can easily display the corresponding program, so that the user can simply watch the desired program.

In particular, by performing the first communication method between the remote control device 200 and the set-top box 250, and performing the second communication method between the image display device 100 and the remote control device 200, With one remote control device 200, it is possible to easily control the image display device 100 and the set-top box 250.

On the other hand, when any one of a plurality of broadcast program items is selected, the selected object can be selected on a program basis even if there is no channel number information in the displayed object, so that the user can watch the desired broadcast program accurately.

On the other hand, the real-time viewership information received from the server 500, the real-time viewership information generated by the server 500 based on the image representing the channel name or program name transmitted from the video display device 100 to the server 500 Can be.

The image display apparatus 100 may generate a channel map including the channel name and the channel number through automatic channel search. For example, when an image indicating a channel name exists in a broadcast image of a received broadcast signal through channel switching, the corresponding image may be extracted, and the channel name of the corresponding channel may be checked based on the extracted image. The channel map can be generated using the channel number information and the channel name information.

The terrestrial digital broadcast signal received through the antenna includes channel number information and channel name information, and thus may be used when generating a channel map.

Meanwhile, in the case of a terrestrial analog broadcast signal received through an antenna, channel number information is included but channel name information is not included, so it is not possible to know which channel name the channel number represents.

According to an exemplary embodiment of the present invention, when there is an image representing a channel name in a broadcast video, a channel name may be checked for a broadcast signal that does not include channel name information, such as a terrestrial analog broadcast signal. Specifically, the channel name can be confirmed by detecting a logo representing the channel name.

On the other hand, if there is no image representing the channel name in the broadcast video, it is difficult to identify the channel name, and thus suggests a method of inferring through the previously generated channel map. That is, the video display device 100 transmits the channel map, the channel number and the channel name of which has been confirmed, to the server 500, and the server 500 uses the server number and the channel name of the received channel map to display the server ( A matching channel map is matched among a plurality of channel maps previously stored in 500. The server 500 transmits the information about the channel map to the video display device 100. Accordingly, the image display apparatus 100 may check the channel name even when there is no image indicating the channel name in the broadcast video, using the information on the channel map received from the server 500. Furthermore, the channel map can be completed.

Meanwhile, according to another exemplary embodiment of the present invention, the video display device 100 may receive detailed information related to the broadcast video displayed during the broadcast video display from the server 500 and simply display the detailed information. Therefore, the user's ease of use can be increased.

Meanwhile, the server 500 may receive an image representing a channel name or a program name from the video display device, and simply check the broadcast channel of the video display device based on the received image.

On the other hand, the server 500 may receive an image representing the channel name or program name of the broadcast program being viewed, respectively, from the plurality of video display devices through the network interface unit 530 of FIG. 7. In addition, the received channel information or program information may be identified using the received image, and real-time viewership information may be calculated based on the received channel information.

Meanwhile, the server 500 may receive respective channel number information and channel name information from the plurality of video display devices or receive the generated channel map information through the network interface unit 530 of FIG. 7. have.

As described above, the server 500 selects a channel map corresponding to each video display device by using the information received from each video display device. The selected channel map information may be transmitted to each image display device.

The image display apparatus 100 may include a TV (TV), a monitor, a computer, and the like, which can be broadcast-displayed.

The server 500 may be any one of a content server for providing content, a service server for providing a service, and a network server for providing a network.

2 is a block diagram illustrating an image display apparatus according to an exemplary embodiment of the present invention.

Referring to FIG. 2, the video display device 100 according to an embodiment of the present invention includes a broadcast receiving unit 105, an external device interface unit 130, a storage unit 140, a user input interface unit 150, It may include a sensor unit (not shown), a controller 170, a display 180, and an audio output unit 185.

The broadcast receiver 105 may include a tuner 110, a demodulator 120, and a network interface 130. Of course, if necessary, the tuner 110 and the demodulator 120 may be provided so that the network interface 130 is not included. On the contrary, the tuner 110 includes the network interface 130. ) And the demodulator 120 may be designed not to be included.

Meanwhile, unlike the figure, the broadcast receiving unit 105 may include an external device interface unit (135 of FIG. 2). For example, the broadcast signal from the set top box 250 of FIG. 1 may be received through the external device interface unit 135 of FIG. 2.

The tuner unit 110 selects an RF broadcast signal corresponding to a channel selected by a user or all pre-stored channels among RF (Radio Frequency) broadcast signals received through the antenna 50. In addition, the selected RF broadcast signal is converted into an intermediate frequency signal or a baseband video or audio signal.

For example, if the selected RF broadcast signal is a digital broadcast signal, it is converted into a digital IF signal (DIF), and if the analog broadcast signal is converted into an analog baseband video or audio signal (CVBS / SIF). That is, the tuner 110 may process a digital broadcast signal or an analog broadcast signal. The analog baseband video or audio signal CVBS / SIF output from the tuner 110 may be directly input to the controller 170.

In addition, the tuner unit 110 may receive a single broadcast RF broadcast signal according to an ATSC (Advanced Television System Committee) scheme or a multiple broadcast RF broadcast signal according to a digital video broadcasting (DVB) scheme.

Meanwhile, the tuner unit 110 sequentially selects RF broadcast signals of all broadcast channels stored through a channel memory function among RF broadcast signals received through an antenna in the present invention, and converts them to intermediate frequency signals or baseband video or audio signals. Can be converted to

On the other hand, the tuner unit 110 may be provided with a plurality of tuners in order to receive broadcast signals of a plurality of channels. Alternatively, a single tuner may be used to receive broadcast signals of multiple channels simultaneously.

The demodulator 120 receives the digital IF signal DIF converted by the tuner 110 and performs a demodulation operation.

The demodulator 120 may output a stream signal TS after performing demodulation and channel decoding. In this case, the stream signal may be a signal multiplexed with a video signal, an audio signal, or a data signal.

The stream signal output from the demodulator 120 may be input to the controller 170. After performing demultiplexing, image / audio signal processing, and the like, the controller 170 outputs an image to the display 180 and outputs audio to the audio output unit 185.

The external device interface unit 130 may transmit or receive data with the connected external device 190. To this end, the external device interface unit 130 may include an A / V input / output unit (not shown) or a wireless communication unit (not shown).

The external device interface unit 130 may be connected to an external device such as a DVD (Digital Versatile Disk), Blu-ray (Blu ray), a game device, a camera, a camcorder, a computer (laptop), a set top box, or the like by wire / wireless. It may also perform input / output operations with external devices.

The A / V input / output unit may receive a video and audio signal of an external device. The wireless communication unit may perform short range wireless communication with another electronic device.

The network interface unit 135 provides an interface for connecting the image display apparatus 100 to a wired / wireless network including an internet network. For example, the network interface unit 135 may receive content or data provided by the Internet or a content provider or a network operator through a network.

The storage 140 may store a program for processing and controlling each signal in the controller 170, or may store a signal-processed video, audio, or data signal.

In addition, the storage unit 140 may perform a function for temporarily storing an image, audio, or data signal input to the external device interface unit 130. In addition, the storage 140 may store information on a predetermined broadcast channel through a channel storage function such as a channel map.

2 illustrates an embodiment in which the storage unit 140 of FIG. 2 is provided separately from the control unit 170, the scope of the present invention is not limited thereto. The storage 140 may be included in the controller 170.

The user input interface unit 150 transmits a signal input by the user to the controller 170 or transmits a signal from the controller 170 to the user.

For example, the remote controller 200 transmits / receives a user input signal such as power on / off, channel selection, screen setting, or a local key (not shown) such as a power key, a channel key, a volume key, or a set value. Transmits a user input signal input from the control unit 170, or transmits a user input signal input from the sensor unit (not shown) for sensing the user's gesture to the control unit 170, or the signal from the control unit 170 It can transmit to a sensor unit (not shown).

The controller 170 may demultiplex the input stream or process the demultiplexed signals through the tuner unit 110, the demodulator 120, or the external device interface unit 130. Signals can be generated and output.

The image signal processed by the controller 170 may be input to the display 180 and displayed as an image corresponding to the image signal. In addition, the image signal processed by the controller 170 may be input to the external output device through the external device interface unit 130.

The voice signal processed by the controller 170 may be sound output to the audio output unit 185. In addition, the voice signal processed by the controller 170 may be input to the external output device through the external device interface unit 130.

Although not shown in FIG. 2, the controller 170 may include a demultiplexer, an image processor, and the like. This will be described later with reference to FIG. 4.

In addition, the controller 170 may control overall operations of the image display apparatus 100. For example, the controller 170 may control the tuner 110 to control the tuner 110 to select an RF broadcast corresponding to a channel selected by a user or a pre-stored channel.

In addition, the controller 170 may control the image display apparatus 100 by a user command or an internal program input through the user input interface unit 150.

The controller 170 may control the display 180 to display an image. In this case, the image displayed on the display 180 may be a still image or a video, and may be a 2D image or a 3D image.

The controller 170 may generate and display a 3D object with respect to a predetermined 2D object in an image displayed on the display 180. For example, the object may be at least one of a connected web screen (newspaper, magazine, etc.), an EPG (Electronic Program Guide), various menus, widgets, icons, still images, videos, and text.

Such a 3D object may be processed to have a depth different from that of the image displayed on the display 180. Preferably, the 3D object may be processed to appear protruding from the image displayed on the display 180.

The controller 170 may recognize a location of a user based on an image photographed by a photographing unit (not shown). For example, the distance (z-axis coordinate) between the user and the image display apparatus 100 may be determined. In addition, the x-axis coordinates and the y-axis coordinates in the display 180 corresponding to the user position may be determined.

On the other hand, although not shown in the figure, it may be further provided with a channel browsing processing unit for generating a thumbnail image corresponding to the channel signal or the external input signal. The channel browsing processor may receive a stream signal TS output from the demodulator 120 or a stream signal output from the external device interface 130, extract a video from the input stream signal, and generate a thumbnail image. Can be. The generated thumbnail image may be stream decoded together with the decoded image and input to the controller 170. The controller 170 may display a thumbnail list including a plurality of thumbnail images on the display 180 by using the input thumbnail image.

In this case, the thumbnail list may be displayed in a simple viewing manner displayed in a partial region while a predetermined image is displayed on the display 180 or in an overall viewing manner displayed in most regions of the display 180. The thumbnail images in the thumbnail list may be updated sequentially.

The display 180 converts an image signal, a data signal, an OSD signal, a control signal, or an image signal, a data signal, a control signal received from the external device interface unit 130 processed by the controller 170, and generates a driving signal. Create

The display 180 may be a PDP, an LCD, an OLED, a flexible display, or a 3D display.

In order to view the 3D image, the display 180 may be divided into an additional display method and a single display method.

The independent display method may implement a 3D image by the display 180 alone without additional display, for example, glasses, and the like, for example, a lenticular method, a parallax barrier, or the like. Various methods can be applied.

Meanwhile, the additional display method may implement 3D images by using an additional display as a viewing device (not shown) in addition to the display 180. For example, various methods such as a head mounted display (HMD) type and glasses type may be used. Can be applied.

On the other hand, the spectacle type may be divided into a passive system such as a polarized glasses type and an active system such as a shutter glass type. In addition, the head mounted display can be divided into a passive type and an active type.

On the other hand, the viewing device (not shown) may be a 3D glasses capable of viewing stereoscopic images. The 3D glass (not shown) may include a passive polarized glass or an active shutter glass, and may also include the aforementioned head mount type.

The display 180 may be configured as a touch screen and used as an input device in addition to the output device.

The audio output unit 185 receives a signal processed by the controller 170 and outputs the audio signal.

The photographing unit (not shown) photographs the user. The photographing unit (not shown) may be implemented by one camera, but is not limited thereto and may be implemented by a plurality of cameras. Meanwhile, the photographing unit (not shown) may be embedded in the image display device 100 on the display 180 or disposed separately. Image information photographed by a photographing unit (not shown) may be input to the controller 170.

The controller 170 may detect a user's gesture based on each of the images captured by the photographing unit (not shown) or the sensed signal from the sensor unit (not shown) or a combination thereof.

The remote control apparatus 200 transmits the user input to the user input interface unit 150. To this end, the remote control device 200 may use Bluetooth, RF (Radio Frequency) communication, infrared (IR) communication, UWB (Ultra Wideband), ZigBee (ZigBee) method and the like. In addition, the remote control apparatus 200 may receive an image, an audio or a data signal output from the user input interface unit 150, and display or output the audio from the remote control apparatus 200.

Meanwhile, the above-described image display apparatus 100 may be a digital broadcast receiver capable of receiving fixed or mobile digital broadcasting.

Meanwhile, a block diagram of the image display device 100 shown in FIG. 2 is a block diagram for an embodiment of the present invention. Each component of the block diagram may be integrated, added, or omitted according to the specifications of the image display apparatus 100 that is actually implemented. That is, two or more components may be combined into one component as needed, or one component may be divided into two or more components. In addition, the function performed in each block is for explaining an embodiment of the present invention, the specific operation or device does not limit the scope of the present invention.

On the other hand, the image display device 100, unlike shown in Figure 2, does not include the tuner 110 and the demodulator 120 shown in Figure 2, the network interface unit 130 or the external device interface unit ( Through 130, the video content may be received and reproduced.

The image display apparatus 100 is an example of an image signal processing apparatus that performs signal processing of an image stored in an apparatus or an input image. Another example of the image signal processing apparatus is the display 180 illustrated in FIG. 2. And a set top box in which the audio output unit 185 is excluded, the above-described DVD player, Blu-ray player, game device, computer, etc. may be further illustrated. Among these, the set top box will be described with reference to FIGS. 3A to 3B below.

3A to 3B are internal block diagrams of a set top box according to an embodiment of the present invention.

First, referring to FIG. 3A, the set-top box 250 includes a broadcast receiver 272, a network interface unit 255, a storage unit 258, a signal processor 260, a user input interface unit 263, and an external device. The device interface unit 265 may be included.

The broadcast receiver 272 may include a tuner 270 and a demodulator 275. In particular, it is possible to receive a broadcast signal, which is received through the antenna 50. The received broadcast signal may be input to the signal processor 260.

The network interface unit 255 provides an interface for connecting to a wired / wireless network including an internet network. It is also possible to transmit or receive data with other users or other electronic devices via the connected network or another network linked to the connected network.

The storage unit 258 may store a program for processing and controlling signals in the signal processing unit 260, and may include an image, audio, or data input from the external device interface unit 265 or the network interface unit 255. It may also serve as a temporary storage of the signal.

The signal processor 260 performs signal processing on the input signal. For example, demultiplexing or decoding of an input video signal may be performed, and demultiplexing or decoding of an input audio signal may be performed. To this end, a video decoder or an audio decoder may be provided. The signal processed video signal or audio signal may be transmitted to the video display device 100 through the external device interface unit 265.

The user input interface unit 263 transmits a signal input by the user to the signal processor 260 or transmits a signal from the signal processor 260 to the user. For example, various control signals, such as power on / off, operation input, setting input, etc., which are input through a local key (not shown) or the remote control apparatus 200, may be received and transmitted to the signal processor 260.

The external device interface unit 265 provides an interface for data transmission or reception with an external device connected by wire or wirelessly. In particular, the present invention provides an interface for transmitting or receiving data with the image display apparatus 100. In addition, it is possible to provide an interface for transmitting or receiving data with an external device such as a game device, a camera, a camcorder, a computer (laptop), or the like.

The set top box 250 may further include a media input unit (not shown) for reproducing a separate media. An example of such a media input unit may be a Blu-ray input unit (not shown). That is, the set top box 250 can be provided with a Blu-ray player or the like. The input media such as a Blu-ray disc may be transmitted to the video display device 100 through the external device interface unit 265 for display after signal processing such as demultiplexing or decoding in the signal processing unit 260. have.

Next, referring to FIG. 3B, the set-top box 250 is similar to the set-top box 250 of FIG. 3A, but unlike FIG. 3A, there is no difference in that there is no separate broadcast receiver 272.

That is, the set top box 250 does not include a separate broadcast receiver 272, and instead, may receive a broadcast signal through the network interface unit 255.

In addition, the operation of the signal processing unit 260 and the like will be omitted with reference to FIG. 3A.

4 is an internal block diagram of the controller of FIG. 2.

Referring to the drawings, the control unit 170 according to an embodiment of the present invention, the demultiplexer 310, the image processor 320, the processor 330, the OSD generator 340, the mixer 345 , Frame rate converter 350, and formatter 360. The audio processing unit (not shown) and the data processing unit (not shown) may be further included.

The demultiplexer 310 demultiplexes an input stream. For example, when an MPEG-2 TS is input, it may be demultiplexed and separated into video, audio, and data signals, respectively. Here, the stream signal input to the demultiplexer 310 may be a stream signal output from the tuner 110, the demodulator 120, or the external device interface 130.

The image processor 320 may perform image processing of the demultiplexed image signal. To this end, the image processor 320 may include an image decoder 225 and a scaler 235.

The image decoder 225 decodes the demultiplexed image signal, and the scaler 235 performs scaling to output the resolution of the decoded image signal on the display 180.

The video decoder 225 may include decoders of various standards.

Meanwhile, the image signal decoded by the image processor 320 may be classified into a case in which only a 2D image signal is present, a case in which a 2D image signal and a 3D image signal are mixed, and a case in which only a 3D image signal is present.

For example, when the external video signal input from the external device 190 or the broadcast video signal of the broadcast signal received by the tuner 110 includes only the 2D video signal, the 2D video signal and the 3D video signal are mixed. , And 3D video signals, the signal may be processed by the controller 170, in particular, the image processor 320, and the like, and thus, mixed signals of 2D video signals, 2D video signals, and 3D video signals, respectively. The 3D video signal may be output.

The image signal decoded by the image processor 320 may be a 3D image signal having various formats. For example, the image may be a 3D image signal including a color image and a depth image, or may be a 3D image signal including a plurality of view image signals. The multi-view video signal may include, for example, a left eye video signal and a right eye video signal.

Here, the format of the 3D video signal includes a side by side format in which the left eye video signal L and the right eye video signal R are arranged left and right, and top and down arranged up and down. Format, frame sequential arrangement in time division, interlaced format that mixes left eye and right eye signals by line, checker box that mixes left eye and right eye signals by box Format and the like.

The processor 330 may control overall operations in the image display apparatus 100 or the controller 170. For example, the processor 330 may control the tuner 110 to control tuning of an RF broadcast corresponding to a channel selected by a user or a previously stored channel.

In addition, the processor 330 may control the image display apparatus 100 by a user command or an internal program input through the user input interface unit 150.

In addition, the processor 330 may perform data transmission control with the network interface unit 135 or the external device interface unit 130.

In addition, the processor 330 may control operations of the demultiplexer 310, the image processor 320, the OSD generator 340, and the like in the controller 170.

The OSD generator 340 generates an OSD signal according to a user input or itself. For example, a signal for displaying various types of information on a screen of the display 180 as a graphic or text may be generated based on a user input signal. The generated OSD signal may include various data such as a user interface screen, various menu screens, widgets, and icons of the image display apparatus 100. In addition, the generated OSD signal may include a 2D object or a 3D object.

In addition, the OSD generator 340 may generate a pointer that can be displayed on the display based on the pointing signal input from the remote controller 200. In particular, such a pointer may be generated by a pointing signal processor, and the OSD generator 240 may include such a pointing signal processor (not shown). Of course, the pointing signal processor (not shown) may be provided separately without being provided in the OSD generator 240.

The mixer 345 may mix the OSD signal generated by the OSD generator 340 and the decoded image signal processed by the image processor 320. In this case, the OSD signal and the decoded video signal may each include at least one of a 2D signal and a 3D signal. The mixed video signal is provided to the frame rate converter 350.

The frame rate converter 350 may convert a frame rate of an input video. On the other hand, the frame rate converter 350 can output the data as it is without additional frame rate conversion.

The formatter 360 may arrange the left eye image frame and the right eye image frame of the frame rate-converted 3D image. In addition, a synchronization signal Vsync for opening the left eye glass and the right eye glass of the 3D viewing apparatus (not shown) may be output.

Meanwhile, the formatter 360 may receive a mixed signal from the mixer 345, that is, an OSD signal and a decoded video signal, and separate the 2D video signal and the 3D video signal.

The formatter 360 may change the format of the 3D video signal. For example, it may be changed to any one of the various formats described above.

Meanwhile, the formatter 360 may convert the 2D video signal into a 3D video signal. For example, an edge or selectable object may be detected within the 2D image signal according to a 3D image generation algorithm, and an object or selectable object according to the detected edge may be separated into a 3D image signal and generated. Can be. In this case, the generated 3D image signal may be divided into a left eye image signal L and a right eye image signal R, as described above, and may be aligned.

Although not shown in the figure, a 3D processor (not shown) for processing a 3D effect signal may be further disposed after the formatter 360. The 3D processor (not shown) may process brightness, tint, and color adjustment of an image signal to improve 3D effects. For example, signal processing may be performed to sharpen the near distance and blur the far distance. Meanwhile, the functions of the 3D processor may be merged into the formatter 360 or merged into the image processor 320.

Meanwhile, the audio processor (not shown) in the controller 170 may perform voice processing of the demultiplexed voice signal. To this end, the audio processor (not shown) may include various decoders.

Also, the audio processor (not shown) in the controller 170 may process a base, a treble, a volume control, and the like.

The data processor (not shown) in the controller 170 may perform data processing of the demultiplexed data signal. For example, when the demultiplexed data signal is an encoded data signal, it may be decoded. The encoded data signal may be EPG (Electronic Progtam Guide) information including broadcast information such as a start time and an end time of a broadcast program broadcasted in each channel.

In FIG. 4, the signals from the OSD generator 340 and the image processor 320 are mixed by the mixer 345 and then 3D processed by the formatter 360, but the present invention is not limited thereto. May be located after the formatter. That is, the output of the image processor 320 is 3D processed by the formatter 360, and the OSD generator 340 performs 3D processing together with OSD generation, and then mixes each processed 3D signal by the mixer 345. It is also possible.

On the other hand, a block diagram of the control unit 170 shown in Figure 4 is a block diagram for an embodiment of the present invention. Each component of the block diagram may be integrated, added, or omitted according to the specification of the controller 170 that is actually implemented.

In particular, the frame rate converter 350 and the formatter 360 may not be provided in the controller 170, but may be separately provided or separately provided as one module.

5 is a diagram illustrating a control method of the remote controller of FIG. 2.

As illustrated in FIG. 5A, a pointer 205 corresponding to the remote controller 200 is displayed on the display 180.

The user can move or rotate the remote control device 200 up and down, left and right (Fig. 5 (b)), front and rear (Fig. 5 (c)). The pointer 205 displayed on the display 180 of the image display device corresponds to the movement of the remote controller 200. The remote control apparatus 200 may be referred to as a spatial remote controller or a 3D pointing device because the pointer 205 is moved and displayed according to the movement in the 3D space as shown in the figure.

5B illustrates that when the user moves the remote control apparatus 200 to the left side, the pointer 205 displayed on the display 180 of the image display apparatus also moves to the left side correspondingly.

Information about the movement of the remote control device 200 detected through the sensor of the remote control device 200 is transmitted to the image display device. The image display device may calculate the coordinates of the pointer 205 from the information about the movement of the remote controller 200. The image display device may display the pointer 205 to correspond to the calculated coordinates.

FIG. 5C illustrates a case in which the user moves the remote control apparatus 200 away from the display 180 while pressing a specific button in the remote control apparatus 200. As a result, the selection area in the display 180 corresponding to the pointer 205 may be zoomed in and enlarged. On the contrary, when the user moves the remote controller 200 to be closer to the display 180, the selection area in the display 180 corresponding to the pointer 205 may be zoomed out and reduced. On the other hand, when the remote control device 200 moves away from the display 180, the selection area is zoomed out, and when the remote control device 200 approaches the display 180, the selection area may be zoomed in.

On the other hand, while pressing a specific button in the remote control device 200 can recognize the up, down, left and right movement. That is, when the remote control device 200 moves away from or near the display 180, the up, down, left and right movements are not recognized, and only the front and back movements can be recognized. In a state where a specific button in the remote controller 200 is not pressed, only the pointer 205 moves according to the up, down, left, and right movements of the remote controller 200.

Meanwhile, the moving speed or the moving direction of the pointer 205 may correspond to the moving speed or the moving direction of the remote control apparatus 200.

6 is an internal block diagram of the remote control device of FIG. 2.

Referring to the drawings, the remote control device 200 includes a wireless communication unit 425, a user input unit 435, a sensor unit 440, an output unit 450, a power supply unit 460, a storage unit 470, The controller 480 may be included.

The wireless communication unit 425 transmits and receives a signal with any one of the image display apparatus according to the embodiments of the present invention described above. Among the image display apparatuses according to the exemplary embodiments of the present invention, one image display apparatus 100 will be described as an example.

In the present embodiment, the remote control apparatus 200 may include an RF module 421 capable of transmitting and receiving a signal with the image display apparatus 100 according to the RF communication standard. In addition, the remote control apparatus 200 may include an IR module 423 capable of transmitting and receiving a signal with the image display apparatus 100 according to the IR communication standard.

In the present embodiment, the remote control apparatus 200 transmits a signal containing information on the movement of the remote control apparatus 200 to the image display apparatus 100 through the RF module 421.

In addition, the remote control apparatus 200 may receive a signal transmitted from the image display apparatus 100 through the RF module 421. In addition, the remote control apparatus 200 may transmit a command regarding power on / off, channel change, volume change, etc. to the image display apparatus 100 through the IR module 423 as necessary.

The user input unit 435 may be configured as a keypad, a button, a touch pad, or a touch screen. The user may input a command related to the image display apparatus 100 to the remote control apparatus 200 by manipulating the user input unit 435. When the user input unit 435 includes a hard key button, the user may input a command related to the image display apparatus 100 to the remote control apparatus 200 through a push operation of the hard key button. When the user input unit 435 includes a touch screen, the user may input a command related to the image display apparatus 100 to the remote control apparatus 200 by touching a soft key of the touch screen. In addition, the user input unit 435 may include various kinds of input means that the user can operate, such as a scroll key or a jog key, and the present embodiment does not limit the scope of the present invention.

The sensor unit 440 may include a gyro sensor 441 or an acceleration sensor 443. The gyro sensor 441 may sense information about the movement of the remote controller 200.

For example, the gyro sensor 441 may sense information about an operation of the remote controller 200 based on the x, y, and z axes. The acceleration sensor 443 may sense information about a moving speed of the remote controller 200. Meanwhile, a distance measuring sensor may be further provided, whereby the distance with the display 180 may be sensed.

The output unit 450 may output a video or audio signal corresponding to a manipulation of the user input unit 435 or corresponding to a signal transmitted from the image display apparatus 100. The user may recognize whether the user input unit 435 is manipulated or whether the image display apparatus 100 is controlled through the output unit 450.

For example, the output unit 450 may include a LED module 451 which is turned on when the user input unit 435 is manipulated or a signal is transmitted / received through the wireless communication unit 425, and a vibration module generating vibration. 453), a sound output module 455 for outputting sound, or a display module 457 for outputting an image.

The power supply unit 460 supplies power to the remote control device 200. The power supply unit 460 may reduce power waste by stopping the power supply when the remote controller 200 does not move for a predetermined time. The power supply unit 460 may resume power supply when a predetermined key provided in the remote control apparatus 200 is operated.

The storage unit 470 may store various types of programs, application data, and the like necessary for controlling or operating the remote control apparatus 200. If the remote control apparatus 200 transmits and receives a signal wirelessly through the image display apparatus 100 and the RF module 421, the remote control apparatus 200 and the image display apparatus 100 transmit signals through a predetermined frequency band. Send and receive The control unit 480 of the remote control device 200 stores information on a frequency band or the like for wirelessly transmitting and receiving signals with the image display device 100 paired with the remote control device 200 in the storage unit 470. Reference may be made.

The controller 480 controls various items related to the control of the remote controller 200. The controller 480 transmits a signal corresponding to a predetermined key operation of the user input unit 435 or a signal corresponding to the movement of the remote controller 200 sensed by the sensor unit 440 through the wireless communication unit 425. 100 can be sent.

The user input interface unit 150 of the image display apparatus 100 includes a wireless communication unit 151 capable of transmitting and receiving a signal wirelessly with the remote control apparatus 200 and a pointer corresponding to the operation of the remote control apparatus 200. It may be provided with a coordinate value calculation unit 415 that can calculate the coordinate value of.

The user input interface unit 150 may transmit / receive a signal wirelessly with the remote control apparatus 200 through the RF module 412. In addition, the IR module 413 may receive a signal transmitted by the remote control device 200 according to the IR communication standard.

The coordinate value calculator 415 corrects a hand shake or an error from a signal corresponding to the operation of the remote control apparatus 200 received through the wireless communication unit 151 to display the coordinate value of the pointer 202 to be displayed on the display 170. (x, y) can be calculated.

The remote control apparatus 200 transmission signal input to the image display apparatus 100 through the user input interface unit 150 is transmitted to the controller 180 of the image display apparatus 100. The controller 180 may determine the information on the operation and the key operation of the remote controller 200 from the signal transmitted from the remote controller 200, and control the image display apparatus 100 correspondingly.

As another example, the remote control apparatus 200 may calculate a pointer coordinate value corresponding to the operation and output the pointer coordinate value to the user input interface unit 150 of the image display apparatus 100. In this case, the user input interface unit 150 of the image display apparatus 100 may transmit the information about the received pointer coordinate value to the controller 180 without any additional hand shake or error correction process.

In addition, as another example, the coordinate value calculator 415 may be provided inside the controller 170 instead of the user input interface unit 150 unlike in the drawing.

7 is an internal block diagram of the server of FIG. 1.

Referring to FIG. 7, the server 500 may include a network interface unit 730, a storage unit 740, and a processor 720.

The network interface unit 730 may receive an image representing a channel name or a program name from the video display device 100.

In addition, the network interface unit 730 receives channel number information and channel name (MBS, CBB, KBB, NCC, etc.) information from at least one image display device, or receives the generated channel map information. can do.

Meanwhile, the network interface unit 730 may further receive program names (Oh! Lady, ABC news, DR. OZ, etc.) that are being broadcast on the broadcast channel, in addition to the broadcast channel names, from the at least one video display device. Can be.

The storage unit 740 may store a channel name or a program image. Alternatively, the storage unit 740 may store detailed information related to the broadcast video displayed on the video display device 100. The detailed information at this time may be received from the outside or generated internally.

Alternatively, the storage unit 740 may include a plurality of channel maps. The plurality of channel maps may include a channel map for cable broadcasting (terrestrial wave and analog), a channel map for terrestrial analog broadcasting, a channel map for phase broadcasting, a channel map for IPTV, and the like. Meanwhile, the channel map for cable broadcasting may be classified by region or by cable broadcasting service type.

The processor 720 may check the channel information and the program information of the video display device 100 based on the image representing the channel name or the program name received from the video display device 100.

In addition, when the processor 720 receives a detailed information request command relating to the broadcast image displayed on the image display apparatus, the processor 720 may control to transmit the detailed information related to the displayed broadcast image to the image display apparatus 100. Can be.

In addition, the processor 720 may select a corresponding channel map among the plurality of channel maps in the storage unit 740 using the channel map information received from the at least one image display apparatus, the channel number information, or the channel name information. The control unit may select and transmit information about the selected channel map to each image display apparatus.

On the other hand, if the channel map corresponding to each video display device is not stored in the server 500, the processor 720 receives the data through another server and selects the channel map corresponding to each video display device. Can be controlled.

Alternatively, the processor 720 displays each image in a state in which a channel map corresponding to each image display apparatus is not stored in the server 500 or a corresponding channel map cannot be matched or selected through another server. When a predetermined number of channel maps among the channel maps received by the device match, the channel map may be stored in the storage unit 740 as a new channel map.

The processor 720 may generate real-time viewer rating information using the real-time broadcast information or the broadcast video image received from the plurality of video display devices. The real-time viewer rating information at this time may include channel share information, channel viewer number information, broadcast program share information of a specific channel, viewer number information of a specific channel, and the like. In addition, it may include real-time channel search information, or real-time program search information.

The processor 720 compares an image including broadcast information received from a plurality of image display apparatuses with a real-time broadcast image received through a network, so that the image including the received broadcast information is a real-time broadcast image. It can be determined whether or not.

In the case of a real-time broadcast image, the processor 720 may extract broadcast information such as channel information and program information from the corresponding broadcast image, and generate real-time viewer rating information based on the extracted broadcast information.

On the other hand, the network interface unit 730 may transmit the selected channel map or channel number information, channel name information, etc. in each of the video display apparatuses.

The network interface unit 730 may transmit the generated real-time viewership information to at least one of the plurality of image display devices. Preferably, it is preferable to transmit the generated real-time viewer rating information to all image display apparatuses which have transmitted broadcast information or an image including broadcast information.

8 is a flowchart illustrating a method of operating an image display apparatus according to an exemplary embodiment of the present invention, and FIGS. 9 to 16 are views for explaining various examples of the method of FIG. 8 or 9.

First, the video display device 100 receives a broadcast signal from the set top box 250 (S805). On the other hand, step S805 corresponds to step S1105 of FIG. 11.

The cable broadcast signal, the phase broadcast signal or the terrestrial broadcast signal, the IPTV broadcast signal, or the like may be received through the set top box 250. The received broadcast signal is received through the external device interface unit 130 of the image display apparatus 100 and transmitted to the controller 170.

The controller 170 processes the received broadcast signal. For example, the signal is converted into a signal that can be displayed on the display 180 through processes such as demultiplexing and decoding.

The controller 170 controls the display 180 to display a broadcast image corresponding to the broadcast signal received from the set top box 250.

Next, the video display device 100 determines whether an image representing a channel name or a program name exists in the broadcast video of the broadcast signal (S810). In operation S820, an image representing a channel name or a program name is extracted. Then, the extracted image is transmitted to the server (S830). Meanwhile, steps 810 and 820 of S820 correspond to steps 1110 and S120 of FIG. 11 and 1120 and S120, respectively, and step 830 and S830 of FIG. 10 respectively. It corresponds to step S1030 and step 1130 S1130 of FIG. 11.

The controller 170 determines whether an image representing a channel name or a program name exists in the broadcast video of the broadcast signal received from the set-top box 250.

In detail, the controller 170 may detect a logo using a logo image representing a channel name of a broadcast channel or a logo image representing a program name of a predetermined program.

In general, the logo image representing the channel name of the broadcast channel or the logo image representing the program name of the predetermined program is displayed at the upper right, lower right, or upper left of the broadcast video, so that the control unit 170 extracts and extracts the corresponding area. A logo or text of the area to be detected can be detected.

The image representing the detected channel name or program name may be transmitted to the server 500 through the network interface 135.

Accordingly, the server 500 may receive an image representing a channel name or a program name of the broadcast video displayed on the video display device 100 through the network interface unit 730. The image may be transferred to the processor 720 in the server 500.

Next, the server 500 extracts real-time broadcast information based on the received image and the real-time broadcast image (S1033). Then, the actual audience rating information is generated (S1036). The generated real-time viewership information is transmitted to at least one of the plurality of image display apparatuses (S1040). Meanwhile, steps 1033 and 1036 (S1036) correspond to steps 1133 (S1133) and 1136 (S1136) of FIG. 11, and step 1040 (S1040) corresponds to step 840 of FIG. 8. This corresponds to step S840 and to step 1140 (S1140) of FIG. 11.

In detail, the processor 720 in the server 500 may generate real-time viewer rating information using the real-time broadcast information received from the plurality of image display apparatuses. The real-time viewer rating information at this time may include channel share information, channel viewer number information, broadcast program share information of a specific channel, viewer number information of a specific channel, and the like. In addition, it may include real-time channel search information, or real-time program search information.

The processor 720 compares an image including broadcast information received from a plurality of image display apparatuses with a real-time broadcast image received through a network, so that the image including the received broadcast information is a real-time broadcast image. It can be determined whether or not.

In the case of a real-time broadcast image, the processor 720 extracts broadcast information such as channel information, program information, and the like from the broadcast image, and based on the extracted broadcast information, as described above, real-time viewer rating information and the like. Can be generated.

The network interface unit 730 may transmit the generated real-time viewership information to at least one of the plurality of image display devices. Preferably, it is preferable to transmit the generated real-time viewer rating information to all image display apparatuses which have transmitted broadcast information or an image including broadcast information.

Next, the image display apparatus 100 displays an object representing the received real-time viewer rating information (S850). Meanwhile, operation 850 (S850) corresponds to operation 1150 (S1150) of FIG. 11.

The object representing the real-time viewership information may include a plurality of broadcast program items. In particular, each real-time broadcast program item may be displayed by being arranged in order of viewer rating. In this case, the object representing the real-time viewer rating information may further include an item for each broadcast program type, a real time ranking item, a daily ranking item, a weekly ranking item, a monthly ranking item, and a type, real time ranking, daily ranking, weekly ranking, monthly ranking In accordance with the present disclosure, the broadcast program items may be arranged and displayed. Accordingly, a plurality of broadcast programs can be arranged and displayed according to various criteria, and user convenience can be increased.

On the other hand, the object representing the real-time viewer rating information may not include channel number information. That is, the program may include a plurality of program items based on the program.

Next, when there is a predetermined program selection input (S865), the image display apparatus 100 transmits channel information about the program to the set-top box or the remote control apparatus (S870). In operation S880, a broadcast signal regarding the selected program is received from the set top box. Then, the selected broadcast program is displayed (S890). Meanwhile, step 865 (S865) corresponds to step 965 (S965) of FIG. 9 and step 1065 (S1065) of FIG. 10, and step 870 (S870) of step 970 (S970) of FIG. 9. And step 1070 (S1170) of FIG. 11, and step 880 (S880) and step 890 (S890) respectively correspond to step 1180 (S1180) and step 1190 (S1190) of FIG. .

Among the plurality of programs displayed on the image display apparatus 100 using the remote controller 200 while the object including a plurality of broadcast program items is displayed on the display 180 of the image display apparatus 100. Either one can be selected (S965).

The user input interface unit 150 of the image display apparatus 100 may receive a remote control signal from the remote control apparatus 200 and select one program item based on the remote control signal.

In particular, when the remote control apparatus 200 outputs a pointing signal corresponding to a movement as described above with reference to FIG. 5, the control unit 170 of the image display apparatus 100 receives the pointing signal and the pointing signal. Based on the control, the pointer image may be controlled to be displayed on the display 180. The controller 170 of the video display device 100 may select one of a plurality of broadcast program items based on a pointing signal.

The image display apparatus 100 may transmit channel information about the selected program to the remote control apparatus. When any one of the program items including the plurality of broadcast program items described above is selected, the controller 170 of the video display device 100 uses the channel map stored in the storage 140 to select the selected program. The channel number information or the channel name information may be extracted.

In addition, the controller 170 of the image display apparatus 100 may transmit channel number information or channel name information on the selected program item to the remote controller. Alternatively, the controller 170 of the image display apparatus 100 may directly transmit channel number information or channel name information on the selected program item to the set top box 250.

The remote control apparatus 200 may receive channel number information or channel name information on the selected program item from the user input interface unit 150 of the image display apparatus 100.

The remote control apparatus 200 may transmit the channel number information to the set-top box 250 using the received channel number information or channel name information.

At this time, the remote control device 200 and the set-top box 250 may perform IR communication, and the remote control device 200 and the image display device 100 may perform other RF communication and IR communication. Can be. The remote control device 200 exchanges data with the image display device 100 based on RF, but exchanges data with an external device such as the set-top box 250 based on IR, and thus, an IR blaster (IR BLASTER). Can be named).

For such IR communication, the remote controller 200 may remotely control the set-top box 250 from the set-top box 250, the image display device 100, or the server 500. Can receive values. These key values may be received from the set top box 250, the image display apparatus 100, or the server 500 when the set top box is powered on.

Next, the set top box 250 receives a broadcast signal of a corresponding channel in response to the received channel number information. To this end, the tuner unit 270 in the set top box 250 may receive the selected channel, or the network interface unit 255 in the set top box 250 may receive a stream corresponding to the channel.

The set top box 250 transmits the broadcast signal of the received channel to the video display device 100. Accordingly, the external device interface unit 130 of the video display device 100 receives a broadcast signal about a program selected from the set top box 250. The controller 170 of the image display apparatus 100 performs signal processing such as demultiplexing and decoding on the received broadcast signal to control the display 180 to display the selected broadcast program.

12A to 12F are views referred to for describing steps 805 to 850 of operation S850 of FIG. 8.

Referring to the drawings, first, FIG. 12A illustrates that the broadcast signal 1210 from the set top box 250 is transmitted to the image display apparatus 100.

In this case, the display 180 of the image display apparatus 100 may display a broadcast image corresponding to the received broadcast signal 1210.

In particular, the broadcast video may include broadcast information 1220 indicating channel name information 'MBS HD' or program name information ('Infinite Challenge') in the corner region.

Next, FIG. 12B illustrates that the image 1230 indicating the channel name and the program name or the broadcast image 1225 itself including the channel name and the program name are transmitted from the video display device 100 to the server 500.

Meanwhile, the drawing illustrates that the image is transmitted to the server 500. Alternatively, text-based data may be transmitted instead of image data. For example, the broadcast information may be text data corresponding to a channel name ('MBS HD') or a program name ('infinite challenge').

Meanwhile, in the drawing, the broadcast image 1225 is illustrated as an entire broadcast video image. Alternatively, the broadcast image 1225 may be an image including only a broadcast information part. That is, reference numeral 1230 of the figure may be an image including broadcast information.

Next, FIG. 12C illustrates that the server 500 compares the real-time broadcast image 1240 received through the network with the image 1225 received from the video display device 100 to determine whether the real-time broadcast is performed. do.

The server 500 may receive real-time broadcast images 1240a, 1240b, 1240c, and 1240d through a network. Then, it may be stored in the storage unit 740.

Meanwhile, the processor 720 of the server 500 compares the received real-time broadcast images 1240a, 1240b, 1240c, and 1240d with the image 1225 received from the video display device 100 to determine whether they are the same. In the same case, it may be determined that the image 1225 received from the video display device 100 is a real time broadcast image.

To this end, the processor 720 of the server 500 may use an image pattern comparison algorithm.

In the drawing, the second real-time broadcast image 1240b and the image 1225 received from the image display apparatus 100 are identical among the received real-time broadcast images 1240a, 1240b, 1240c, and 1240d.

Next, FIG. 12D illustrates that the server 500 generates real-time viewership information.

In this case, the real-time viewer rating information includes broadcast information or broadcast image received from the set-top box 250 to the video display device 100 and broadcast information or broadcast image received from the broadcast receiver 105 to the video display device 100. Including all, it may be generated real-time viewership information.

In the figure, it is illustrated that real-time viewership information is generated based on the number of viewers.

Next, FIG. 12E illustrates that real-time viewership information 1255 from the server 500 is transmitted to the video display device 100.

 The network interface unit 135 of the image display apparatus 100 may receive real-time viewership information 1255 from the server 500.

Next, FIG. 12F illustrates that an object 1265 representing real-time viewership information is displayed together with the broadcast image 1260 on the video display device 100.

The controller 170 of the image display apparatus 100 generates an object 1265 representing the real-time viewership information by using the real-time viewership information 1255 from the server 500, and displays the object 1265. ) Can be displayed.

Meanwhile, in the drawing, broadcast information 1220 indicating channel name information ('MBS HD') or program name information ('infinite challenge') is also displayed.

Accordingly, the user can easily grasp the real-time viewership information. In addition, according to the viewer rating, it is possible to search or watch other broadcast channels or other broadcast programs, thereby increasing user convenience.

The image display apparatus 100 may generate a channel map using the channel search mode. The channel information in operation 870 may be extracted from the generated channel map.

13A to 14D are diagrams for explaining an example of generating a channel map in the image display apparatus 100.

In order to generate a channel map, the image display apparatus 100 may enter a channel search mode. The channel search mode may enter automatically according to a user input. For example, the channel search mode may be an automatic channel search mode or a manual channel search mode.

13A illustrates that the automatic channel search mode is performed. As shown in the figure, when the user enters the automatic channel search mode, the automatic channel search is performed, and the object 1320 indicating this may be displayed as shown.

Meanwhile, the object 1320 indicating the automatic channel search mode may be displayed together with the broadcast image 1310 of the channel 9 (CH 9) being viewed. The object 1320 may be displayed transparently so that the broadcast image 1310 of the channel being viewed is visible.

13B illustrates that the first broadcast signal Sa of the channel 9 is received by the video display device 100. The display 180 of the image display apparatus 100 may display the first broadcast image 1330 with respect to the received first broadcast signal Sa. At this time, since the channel 9 is a digital broadcast signal, when the broadcast signal of the channel 9 is received through the antenna, the storage unit 140 is in the form of a channel map 1431, and has channel number information (channel 9) and channel name information. (KBS 1) can be saved.

Meanwhile, when the received broadcast signal is a digital broadcast signal received through the set top box 250, the received broadcast signal may include channel number information or channel name information included in the broadcast signal. In this case, as described above, the controller 170 controls to extract the channel number information or the channel name information and store the channel number information or the channel name information in the storage unit 140 as a channel map form.

On the other hand, if the received broadcast signal is an analog broadcast signal, channel number information may be included in the broadcast signal but may not include channel name information. In this case, the controller 170 may perform demultiplexing and image signal processing on the received broadcast signal and control to store the processed broadcast image. The stored broadcast image may be stored in the storage 140 as a still image image. Meanwhile, the stored broadcast video is preferably stored together with the channel number information.

Meanwhile, when the received broadcast signal is a digital broadcast signal received through the set top box 250, the received broadcast signal may not include channel number information or channel name information included in the broadcast signal. The digital broadcast signal provided by the cable operator may not include channel number information or channel name information. In this case, the controller 170 may perform demultiplexing and image signal processing on the received broadcast signal and control to store the processed broadcast image.

FIG. 13C illustrates that the video display device 100 receives the second broadcast signal Sb of the channel 11. The display 180 of the image display apparatus 100 may display a second broadcast image 1332 with respect to the received second broadcast signal Sb. In this case, since the channel 11 is a digital broadcast signal, when the broadcast signal of the channel 11 is received through an antenna, the storage unit 140 has a channel map 1342 in the form of channel number information (channel 11) and channel name information. You can store more (MBC).

FIG. 13D illustrates that the third broadcast signal Sc of the channel 20 is received by the video display device 100. The display 180 of the image display apparatus 100 may display a third broadcast image 1334 with respect to the received third broadcast signal Sc. In this case, since the channel 20 is an analog broadcast signal, the storage 140 may store the frame image 1354 of the broadcast video. The storage 140 may further store channel number information (channel 20) in the form of a channel map 1344.

FIG. 13E illustrates that the sixth broadcast signal Sf of the channel 23 is received by the video display device 100. The display 180 of the image display apparatus 100 may display a sixth broadcast image 1335 for the sixth broadcast signal Sf. In this case, since the channel 23 is an analog broadcast signal, the storage 140 may store the frame image 1357 of the broadcast video. The storage unit 140 may further store channel number information (channel 23) in the form of a channel map 1347.

Next, when the channel search is completed, the video display device 100 determines whether a channel name image exists in the stored broadcast video. If present, the corresponding image is extracted and the channel name of the corresponding channel is checked based on the extracted image. The channel map can be generated using the channel number information and the channel name information.

In the channel search mode, the controller 170 generates a channel map by using the pre-stored broadcast image when all the channel searches are completed.

In detail, the controller 170 determines whether an image representing a channel name exists in the broadcast video stored in the storage 140.

FIG. 14A illustrates confirming a channel name through logo detection indicating a channel name in an image 1355 corresponding to channel 21 stored in the storage 140.

The controller 170 may call the broadcast image 1355 corresponding to the channel 21 to perform logo detection. In general, since a logo indicating a channel name is displayed at the upper right, lower right, or upper left of the broadcast image 1355, the controller 170 extracts the corresponding area and stores the logo or text of the extracted area in advance and stores the channel name. Compared with the information, the corresponding channel name can be found and the channel name can be confirmed.

As illustrated in (a) of FIG. 14A, the controller 170 may extract the logo 1412 displayed on the upper right end of the broadcast image 1355 and check the channel name 1414 (tvN) through this.

As shown in (b) of FIG. 14A, the identified channel names 1414 and tvN may be stored together with the channel number CH 21 in the storage unit 140 as a channel map 1440.

Next, FIG. 14B illustrates confirming the channel name through logo detection indicating the channel name in the image 1355 corresponding to the channel 23 stored in the storage 140.

The controller 170 may call the broadcast image 1357 corresponding to the channel 23 to perform logo detection.

As illustrated in (a) of FIG. 14B, the controller 170 may extract the logo 1422 displayed on the upper right end of the broadcast image 1357, and may check the channel name 1424 (New Y) through this.

As shown in (b) of FIG. 14B, the identified channel name 1424 (New Y) may be stored in the storage unit 140 as a channel map 1442 together with the channel number CH 23.

On the other hand, if there is no image indicating a channel name in the broadcast image stored in the storage 140, the video display device 100 is a server, the channel map confirmed up to that time, that is, confirmed channel number information and channel name information Can be sent.

For example, as illustrated in FIG. 14C, the controller 170 may control to transmit the channel map 1442 generated up to that time to the server 500 through the network interface 135.

The channel map 1442 of FIG. 14C includes the channel names for the digital broadcast channels 9 and 11, and includes the channel names for the broadcast channels 21 and 23 including the channel names among the analog broadcast channels. Of the predetermined broadcast channels 20 and 22, the channel names are not included.

The server 500, in particular, the network interface unit 735 in the server 500 receives the channel number information and the channel name information confirmed from the video display device 100. Next, the server 500 selects the corresponding channel map using the received channel number information and the channel name information. In addition, the server 500 may transmit channel map information on the selected channel map to the image display apparatus 100.

For example, as illustrated in FIG. 14D, the server 500 may directly transmit the selected channel map 1444 to the video display device 100 through the network interface 135. Alternatively, only the channel name information (KBC, SBC) for the broadcast channels 20 and 22 not including the channel name in the channel map 1442 of FIG. 14C may be transmitted.

Accordingly, the controller 170 of the image display apparatus 100 may complete the unfinished channel map by using the received channel map information.

That is, as shown in FIG. 14D, when the selected channel map 1444 is received by the image display device 100 as it is, the received channel map 1444 may be replaced with a channel map being generated. That is, the generated channel map may be updated with the received channel map 1444.

Alternatively, when channel name information (KBC, SBC) for the broadcast channels 20 and 22 that do not include the channel name among the selected channel map 1444 is received, a channel for receiving the generated channel map using the corresponding channel name information. Updates can be made to map 1444.

As a result, the channel names KBC and SBC for the channels 20 and 22, which are not confirmed by the video display device 100, can be easily known.

Next, FIGS. 15A to 15E are views referred to for describing operations 865 to 890 of operation S890 of FIG. 8.

Referring to FIG. 15, first, in FIG. 15A, a broadcast signal from the set-top box 250 is transmitted to the video display device 100 so that the broadcast video 1560 is displayed on the display 180 of the video display device 100. Illustrate what is displayed. In addition, an object 1565 indicating audience rating information may be displayed on the display 180 of the image display apparatus 100 together with the broadcast image 1560.

Meanwhile, FIG. 15A illustrates key values for remotely controlling the set-top box 250 such that IR communication between the remote controller 200 and the set-top box 250 is performed. In the example that the transmission to the remote control device 200. In this case, the image display apparatus 100 may transmit key values RF1 for remotely controlling the set-top box 250 to the remote control apparatus 200 by an RF communication method.

Next, FIG. 15B illustrates that a predetermined program item 1565 is selected from among a plurality of program items in the object 1565 using the pointing signal RF2 of the remote control apparatus 200. In the drawing, the pointer image 205 corresponding to the pointing signal RF2 of the remote control apparatus 200 is displayed to overlap with the corresponding program item 1565, thereby illustrating that the corresponding program item is selected. In this case, the remote control apparatus 200 may transmit the pointing signal RF2 for selecting the corresponding program item 1565 to the image display apparatus 100 by the RF communication method.

Next, FIG. 15C illustrates that the channel information RF3 for the selected program item is transmitted from the image display apparatus 100 to the remote control apparatus 200.

For example, if the channel number information of the selected program item "KBC News" is channel 20 and the channel name information is "KBC", the video display device 100 includes at least one of channel number information and channel name information. The channel information RF3 can be transmitted to the remote control apparatus 200 by the RF communication method.

Next, FIG. 15D illustrates that the channel number information IR1 for the selected program item is transmitted from the remote controller 200 to the set top box 250.

For example, the remote control apparatus 200 may transmit the key value IR1 for the channel number information (channel 20) of "KBC News" to the set top box 250 by an IR communication method.

Accordingly, as shown in FIG. 15E, the set-top box 250 receives a broadcast signal of the selected channel 20 through a channel change and transmits the received broadcast signal to the video display device 100. As a result, the display 180 of the image display apparatus 100 may display the broadcast image 1420 of the channel 20. In this case, according to the channel switching, an object 1425 indicating the channel number CH20 and the channel name KBC may be displayed.

On the other hand, a broadcast signal provided by a cable operator may have a different channel name according to a channel number or a channel name according to a channel number, depending on the type of broadcast service subscribed to by the viewer. On the other hand, since the number of channels increases, it is inconvenient for the viewer to not accurately match the channel number with the channel name.

In this case, rather than selecting a channel number and viewing a program, as described above, it is preferable to display an object including a plurality of program items, such as an audience rating object, and to select a program based on this.

In an embodiment of the present invention, when any one of a plurality of broadcast program items is selected, even if there is no channel number information, selection is possible on a program basis, so that the video display device can accurately display a desired broadcast program.

16 is a diagram illustrating an example of an object including a plurality of program items.

Referring to the drawing, when receiving viewer rating information from the server 500, the video display device 100 may display an object indicating viewer rating information as shown in the drawing.

The object representing the real-time viewership information may include a plurality of broadcast program items. In particular, each real-time broadcast program item may be displayed by being arranged in order of viewer rating. That is, the object representing the real-time viewership information may further include an item 1605 for each program type and a real-time / daily / weekly / monthly ranking item 1615, and may be classified by type, real-time ranking, daily ranking, weekly ranking, and monthly ranking. According to the present disclosure, the broadcast program items 1610 may be displayed in alignment.

In this case, each item may include a corresponding program name and a thumbnail image representing the corresponding program. This makes it possible to easily grasp the program.

Meanwhile, when any one of the program items 1610 is selected, the detailed information item 1625, the watching item 1643, the thumbnail image item 1646, and the detailed information content of the corresponding program are selected. 1649 may be displayed further. Accordingly, user convenience may be increased.

17 is a flowchart illustrating a method of operating an image display device according to another exemplary embodiment. FIGS. 18 to 20E are diagrams for describing various examples of the method of FIG. 17.

Since the operations 1705 to 1730 S1730 of FIG. 17 correspond to the steps 805 to 830 of S8 of FIG. 8, description thereof is omitted. Meanwhile, steps 1705 to 1730 S1730 correspond to steps 1905 to 1930 S1930 of FIG. 19, respectively.

Next, the server 500 extracts real-time broadcast information based on the received image (S1835). Meanwhile, operation S1835 may correspond to operation S1935 of FIG. 19.

In detail, the processor 720 in the server 500 may generate real-time viewer rating information using the real-time broadcast information received from the plurality of image display apparatuses. The real-time viewer rating information at this time may include channel share information, channel viewer number information, broadcast program share information of a specific channel, viewer number information of a specific channel, and the like. In addition, it may include real-time channel search information, or real-time program search information.

Next, the image display device receives a detailed information request command (S1740). Then, a detailed information request command is transmitted to the server (S1750). Meanwhile, steps 1740 (S1740) and 1750 (S1750) correspond to steps 1940 (S1940) and 1950 (S1950) of FIG. 19, respectively.

While the broadcast program is displayed in the image display apparatus, a detailed information request command may be received by a user input. For example, a detailed information request command may be received by inputting a specific key of the remote control apparatus 200. The detailed information at this time may be detailed information about a background, a character, a product, and the like in the broadcast video.

As another example, after the program type, while the advertisement is displayed, a detailed information request command may be received by a user input. For example, a detailed information request command may be received by inputting a specific key of the remote control apparatus 200. The detailed information at this time may be detailed information about the product in the advertisement.

When the detailed information request command is received, the controller 170 of the image display apparatus 100 may transmit the detailed information request command to the server 500 to display the detailed information.

Next, the server 500 receives the detailed information from the outside (S1855). In operation S1860, the detailed information is transmitted to the video display device. Meanwhile, step 1855 (S1855) corresponds to step 1955 (S1955) of FIG. 19, and step 1860 (S1860) corresponds to step 1760 (S1760) of FIG. 17 and step 1960 (S1960) of FIG. Corresponds.

In detail, the processor 720 in the server 500 collects detailed information in response to a detailed information request command. In particular, when the image display apparatus 100 is a real-time broadcast image, metadata about detailed information may be received from the broadcasting station server.

In addition, the processor 720 in the server 500 may control to transmit the received metadata to the image display apparatus 100.

Next, the video display device 100 displays the received detailed information (S1770). Meanwhile, operation S1770 of operation 1770 corresponds to operation 1970 of operation S1970 of FIG. 19.

The controller 170 of the video display device 100 controls to display the received detailed information together with the broadcast video.

20A to 20G are views referred to for describing a method of operating the video display device of FIG. 17.

Referring to the drawings, first, FIG. 20A illustrates that the broadcast signal 2010 from the set-top box 250 is transmitted to the video display device 100.

In this case, the display 180 of the image display apparatus 100 may display a broadcast image 2025 corresponding to the received broadcast signal 2010.

In particular, the broadcast video 2025 may include broadcast information 2020 such as channel name information (MBS HD) in the corner region.

In the figure, the broadcast program is terminated, and only channel name information is displayed in the broadcast video. That is, the displayed broadcast video 2025 may be an advertisement video.

Next, FIG. 20B illustrates that the channel name image 2030 or the broadcast image 2025 itself including the channel name is transmitted from the video display device 100 to the server 500.

Meanwhile, in the drawing, the broadcast image 2025 is illustrated as an entire broadcast video image. Alternatively, the broadcast image 2025 may be an image including only a broadcast information part. That is, reference numeral 2030 of the figure may be an image including broadcast information.

Next, FIG. 20C illustrates that a detailed information request command Smo is input to the video display device 100 by a specific key operation of the remote control apparatus 200. Accordingly, the object 2035 indicating the request for detailed information may be displayed on the display 180 of the image display apparatus 100.

20C also illustrates that the video display device 100 transmits the detailed information request command Sde to the server 500.

Next, FIG. 20D illustrates that the server 500 determines the corresponding detailed information by comparing the detailed information 2040 received through the network with the image 2025 received from the video display device 100. do.

Since the server 500 may know the channel number of the video display device 100 from the video display device 100 through the channel name image 2030 or the broadcast image 2025 including the channel name, the server 500 may be associated with the corresponding channel number. It is possible to connect to a broadcasting station server and receive detailed information items 2040a, 2040b, and 2040c through a network. Then, it may be stored in the storage unit 740.

In detail, an item of detailed information about an hourly advertisement may be received from a broadcasting station server and stored in the storage unit 740.

Meanwhile, the processor 720 of the server 500 compares the received detailed information items 2040a, 2040b, and 2040c with the image 2025 received from the video display device 100, and determines whether there is a corresponding response. In this case, it may be determined as detailed information corresponding to the image display apparatus 100.

In the drawing, the second detailed information item 2040b among the received detailed information 2040a, 2040b, and 2040c corresponds to the image 2025 received from the image display apparatus 100.

Next, FIG. 20E illustrates that the detailed information 2050 related to the second detailed information item from the server 500 is transmitted to the image display apparatus 100.

 The network interface unit 135 of the image display apparatus 100 may receive detailed information 2050 from the server 500.

Next, FIG. 20F illustrates that an object 2065 indicating detailed information is displayed together with the broadcast video 2060 on the video display device 100.

The controller 170 of the image display apparatus 100 generates an object 2065 representing real-time viewership information using the detailed information 2050 from the server 500, and displays the object 2065. You can control it to display. Accordingly, the user can easily grasp detailed information related to the broadcast video displayed during the broadcast video display.

Next, FIG. 20F shows that the video display device 100 transmits the detailed information received from the server to the neighboring portable terminal 2100, and the object 2065 showing the detailed information is displayed on the display of the portable terminal 2100. Illustrates that.

The broadcast image 2025 is displayed on the display 180 of the image display device 100, and an object 2065 indicating detailed information is separately displayed on the display of the mobile terminal 2100, thereby preventing the broadcast image from being disturbed. Information can be grasped.

The image display apparatus, the server, and an operation method thereof according to the present invention are not limited to the configuration and method of the above-described embodiments, but the above embodiments may be modified in various ways so that various modifications can be made. Or some may be selectively combined.

On the other hand, the operating method of the video display device or the server operating method of the present invention can be implemented as code that can be read by the processor in a processor-readable recording medium provided in the video display device or the server. The processor-readable recording medium includes all kinds of recording devices that store data that can be read by the processor. Examples of the processor-readable recording medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like, and may also be implemented in the form of a carrier wave such as transmission over the Internet. . The processor-readable recording medium can also be distributed over network coupled computer systems so that the processor-readable code is stored and executed in a distributed fashion.

In addition, although the preferred embodiment of the present invention has been shown and described above, the present invention is not limited to the specific embodiments described above, but the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Of course, various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

Claims (20)

Displaying an object including a plurality of broadcast program items;
If any one of the plurality of broadcast program items is selected, transmitting channel information on the selected broadcast program to a remote control apparatus;
Transmitting, by the remote controller, the channel information to a set top box;
Receiving a broadcast signal about a broadcast program corresponding to the channel information from a set top box; And
Displaying the received broadcast program;
Entering a channel search mode;
Receiving a broadcast signal of a found broadcast channel according to the channel search mode;
Extracting an image representing a channel name in the broadcast image of the broadcast signal;
Confirming a channel name of a corresponding channel based on the extracted image; And
Generating a channel map by using channel number information and channel name information in the channel information.
The channel information transmitting step,
And transmitting at least one of the channel number information and the channel name information in the channel map. delete The method of claim 1,
And transmitting, by the remote control apparatus, the channel information to the set top box by a first communication scheme.
The channel information transmitting step,
And transmitting channel information on the broadcast program selected from the video display device to the remote control device by a second communication method different from the first communication method. The method of claim 1,
The object including the plurality of broadcast program items includes a broadcast program name without channel number information, and further includes at least one of channel name information of the corresponding broadcast program, broadcast time information, or thumbnail images corresponding to the broadcast program. Method of operating a video display device characterized in that. The method of claim 1,
Receiving a pointing signal from the remote control device; And
Displaying a pointer image corresponding to the pointing signal;
And selecting one of the plurality of broadcast program items is performed based on a pointing signal from the remote control apparatus. The method of claim 1,
The channel information,
And at least one of channel number information and channel name information. The method of claim 1,
Receiving real-time viewership information from a server; further comprising:
The object display step,
And displaying an object including the real-time viewership information and a plurality of broadcast program items corresponding thereto. The method of claim 1,
The object including the plurality of program items,
And at least one of a program rating information and an item of a broadcasting program type, a real time ranking item, a daily ranking item, a weekly ranking item, and a monthly ranking item with respect to the program viewership information. The method of claim 1,
Receiving a broadcast signal of a predetermined channel from the set top box;
Extracting an image representing a channel name or a program name when an image representing a channel name or a program name exists in the broadcast image of the broadcast signal;
Transmitting the extracted image to a server; And
And receiving real-time viewer rating information from the server. delete The method of claim 1,
If there is no image representing a channel name in the broadcast image of the broadcast signal, transmitting the confirmed channel number information and channel name information to a server;
Receiving channel map information from the server; And
And updating the channel map by using the received channel map information. The method of claim 1,
The channel name checking step,
And comparing the extracted image with a logo image representing a channel name previously stored or received through a network, and confirming a channel name of the corresponding channel. Entering a channel search mode;
Receiving a broadcast signal of a found broadcast channel according to the channel search mode;
Extracting an image representing a channel name in the broadcast image of the broadcast signal;
Confirming a channel name of a corresponding channel based on the extracted image; And
Generating a channel map using the channel number information and the channel name information;
Completing the channel search mode;
Receiving a broadcast signal;
Displaying a broadcast image corresponding to the received broadcast signal;
Extracting an image representing a channel name or a program name if an image representing a channel name or a program name exists in the broadcast video;
Transmitting the extracted image to a server;
Receiving detailed information related to the displayed broadcast image from the server; And
And displaying the received detailed information. The method of claim 13,
Receiving a detailed information request command related to the displayed broadcast image; And
And transmitting the detailed information request command to the server. delete A display for displaying an object including a plurality of broadcast program items;
A user input interface unit configured to transmit channel information on the selected broadcast program to a remote controller when any one of the plurality of broadcast program items is selected;
The remote control apparatus for transmitting the channel information to a set top box;
An external device interface unit configured to receive a broadcast signal about a broadcast program corresponding to the channel information from a set top box; And
And a controller configured to control to display the received broadcast program.
The control unit,
The control unit enters the channel search mode, and receives the broadcast signal of the found broadcast channel according to the channel search mode, and extracts the corresponding image if an image representing the channel name exists in the broadcast image of the broadcast signal. And determining a channel name of the corresponding channel based on the image, generating a channel map using the channel number information and the channel name information in the channel information, and controlling to complete the channel search mode. . delete The method of claim 16,
The remote control device,
Transmitting the channel information to the set top box by a first communication scheme,
The user input interface unit,
And channel information about a broadcast program selected from the video display device to the remote control device by a second communication method different from the first communication method. A broadcast receiver for receiving a broadcast signal;
A display configured to display a broadcast image corresponding to the received broadcast signal;
A network interface unit exchanging data with a server; And
If an image representing a channel name or a program name exists in the broadcast video, an image representing the channel name or a program name is extracted, and the extracted image is controlled to be transmitted to the server, and the displayed broadcast video is displayed from the server. And a controller for receiving detailed information and controlling to display the received detailed information.
The control unit,
The control unit enters the channel search mode, and receives the broadcast signal of the found broadcast channel according to the channel search mode, and extracts the corresponding image if an image representing the channel name exists in the broadcast image of the broadcast signal. And determining the channel name of the corresponding channel based on the image, generating a channel map using the channel number information and the channel name information, and controlling to complete the channel search mode. delete

Images