Hereinafter, the present invention will be described in detail with reference to the drawings.
The suffix "module" and " part "for components used in the following description are given merely for convenience of description, and do not give special significance or role in themselves. Accordingly, the terms "module" and "part" may be used interchangeably.
FIG. 1 is a diagram illustrating an image display system according to an embodiment of the present invention.
Referring to FIG. 1, an image display system 10 according to an embodiment of the present invention may include an image display device 100, a set-top box 250, and a server 500.
The set-top box 250 receives a broadcast signal, processes the signal, and transmits the processed broadcast image to the video display device.
To this end, the set-top box 250 may include a broadcast receiving unit (272 in FIG. 3A) including a tuner unit, a demodulating unit, and the like. On the other hand, the set-top box 250 can receive a broadcast image through a network interface unit (255 in FIG. 3B) in addition to a broadcast receiver.
The set-top box 250 can receive a terrestrial broadcast signal, a satellite broadcast signal, a cable broadcast signal, an IPTV broadcast signal, and the like.
In addition to receiving broadcast signals, the set-top box 250 may read media signals from a storage medium, such as an optical disk or a memory storage device, and process the media signals.
The video display apparatus 100 may receive a broadcast signal through the antenna 50 or a broadcast signal from the set top box 250.
When receiving a broadcast signal through the antenna 50, the video display apparatus 100 can receive the broadcast signal through the tuner unit 110 of Figure 2. The broadcast signal received through the antenna 50 A terrestrial digital broadcasting signal, a terrestrial analog broadcasting signal, a satellite digital broadcasting signal, or the like.
When receiving a broadcast signal through the set top box 250, the video display apparatus 100 can receive a broadcast signal through the external device interface unit 130 of FIG. 2, for example, through an HDMI terminal or the like have. 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 image display apparatus 100 may generate a channel map including channel number information and channel name information according to an embodiment of the present invention.
In case of a terrestrial digital broadcasting signal received through an antenna, since it includes channel number information and channel name information, it can be used when generating a channel map.
On the other hand, in the case of a terrestrial analog broadcasting signal or a cable digital / analog broadcasting signal received via an antenna, channel number information is included in the received broadcast signal, but since channel name information is not included, It becomes unknown.
In the embodiment of the present invention, when there is an image representing a channel name in a broadcast image for a broadcast signal that does not include channel name information, such as a terrestrial analog broadcast signal or a cable digital / analog broadcast signal, Can be performed. Specifically, a logo image representing a channel name is detected and compared with the logo data previously stored in the image display apparatus 100, so that the channel name can be confirmed.
At this time, if the logo image of the predetermined channel is changed or a new channel is created and the latest logo data is not stored in the image display apparatus 100, the channel name can not be immediately confirmed.
In the embodiment of the present invention, a method of updating the latest logo data in the image display apparatus 100 is proposed when a logo image of a channel is changed or a new logo image is added due to a new channel.
Specifically, the video display device 100 captures a broadcast image corresponding to the received broadcast signal while receiving a broadcast signal of a predetermined channel, and transmits the captured broadcast image to the server 500. [
Correspondingly, the server 500 receives a plurality of captured broadcast images from the video display device 100 via the network interface unit (530 of FIG. 7), extracts logo data based on the captured broadcast images, And the extracted logo data can be transmitted to the image display apparatus 100. Thus, it is possible to perform logo data extraction simply through the server 500.
On the other hand, the image display apparatus 100 receives the logo data of the channel related to the broadcast image captured from the server 500, and stores the received logo data in the storage unit 140. As a result, the logo data of the channel can be changed or the latest logo data can be stored and maintained for the new channel.
In this way, by storing the latest logo data, the channel name can be easily confirmed through the captured broadcast image, and further, the channel map can be easily generated using the channel number information and the channel name information . Accordingly, the usability of the user can be increased.
On the other hand, if there is no image representing the channel name in the broadcast image, it is difficult to confirm the channel name, so that it can be inferred through the previously generated channel map. That is, the image display apparatus 100 transmits the channel map in which the channel number and channel name are confirmed to the server 500, and the server 500 transmits the channel map to the server 500 using the channel number and the channel name of the received channel map Matching channel map among the plurality of channel maps previously stored in the storage unit 500. Then, the server 500 transmits the information on the selected channel map to the video display device 100. Accordingly, the image display apparatus 100 can confirm the corresponding channel name even if there is no image indicating the channel name in the broadcast image, using the information on the channel map received by the server 500. [ Further, the channel map can be completed.
On the other hand, the video display device 100 may include a TV, a monitor, a computer, and the like capable of broadcasting display.
The server 500 may be any one of a content server providing content, a service server providing a service, and a network server providing a network.
2 is an internal block diagram of an image display apparatus according to an embodiment of the present invention.
2, an image display apparatus 100 according to an exemplary 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, (Not shown), a controller 170, a display 180, and an audio output unit 185.
The broadcast receiving unit 105 may include a tuner unit 110, a demodulation unit 120, and a network interface unit 130. Of course, it is possible to design the network interface unit 130 not to include the tuner unit 110 and the demodulation unit 120 as necessary, and to provide the network interface unit 130 with the tuner unit 110 And the demodulation unit 120 are not included.
On the other hand, the broadcast receiving unit 105 may include an external device interface unit (135 in FIG. 2) unlike the drawing. For example, it is also possible that a broadcast signal from the set-top box 250 of FIG. 1 is received through an external device interface (135 in FIG. 2).
The tuner unit 110 selects an RF broadcast signal corresponding to a channel selected by the user or all pre-stored channels among RF (Radio Frequency) broadcast signals received through the antenna 50. Also, the selected RF broadcast signal is converted into an intermediate frequency signal, a baseband image, or a voice signal.
For example, if the selected RF broadcast signal is a digital broadcast signal, it is converted into a digital IF signal (DIF). If the selected RF broadcast signal is an analog broadcast signal, it is converted into an analog baseband image or voice signal (CVBS / SIF). That is, the tuner unit 110 can process a digital broadcast signal or an analog broadcast signal. The analog baseband video or audio signal (CVBS / SIF) output from the tuner unit 110 can be directly input to the controller 170.
The tuner unit 110 may receive an RF broadcast signal of a single carrier according to an Advanced Television System Committee (ATSC) scheme or an RF broadcast signal of a plurality of carriers according to a DVB (Digital Video Broadcasting) scheme.
Meanwhile, the tuner unit 110 sequentially selects RF broadcast signals of all broadcast channels stored through a channel memory function among the RF broadcast signals received through the antenna in the present invention, and sequentially selects RF broadcast signals of the intermediate frequency signal, baseband image, . ≪ / RTI >
On the other hand, the tuner unit 110 can include a plurality of tuners in order to receive broadcast signals of a plurality of channels. Alternatively, a single tuner that simultaneously receives broadcast signals of a plurality of channels is also possible.
The demodulator 120 receives the digital IF signal DIF converted by the tuner 110 and performs a demodulation operation.
The demodulation unit 120 may perform demodulation and channel decoding, and then output a stream signal TS. At this time, the stream signal may be a signal in which a video signal, a voice signal, or a data signal is multiplexed.
The stream signal output from the demodulation unit 120 may be input to the controller 170. The control unit 170 performs demultiplexing, video / audio signal processing, and the like, and then outputs an image to the display 180 and outputs audio to the audio output unit 185.
The external device interface unit 130 can 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 can be connected to an external device such as a DVD (Digital Versatile Disk), a Blu ray, a game device, a camera, a camcorder, a computer , And may perform an input / output operation with an external device.
The A / V input / output unit can receive video and audio signals from an external device. Meanwhile, the wireless communication unit can perform short-range wireless communication with other electronic devices.
The network interface unit 135 provides an interface for connecting the video display device 100 to a wired / wireless network including the Internet network. For example, the network interface unit 135 can receive, via the network, content or data provided by the Internet or a content provider or a network operator.
The storage unit 140 may store a program for each signal processing and control in the control unit 170 or may store the processed video, audio, or data signals.
In addition, the storage unit 140 may perform a function for temporarily storing video, audio, or data signals input to the external device interface unit 130. [ In addition, the storage unit 140 may store information on a predetermined broadcast channel through a channel memory function such as a channel map.
Although 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 unit 140 may be included in the controller 170.
The user input interface unit 150 transmits a signal input by the user to the control unit 170 or a signal from the control unit 170 to the user.
(Not shown), such as a power key, a channel key, a volume key, and a set value, from the remote control apparatus 200, (Not shown) that senses a user's gesture to the control unit 170 or transmits a signal from the control unit 170 to the control unit 170 It is possible to transmit it to the sensor unit (not shown).
The control unit 170 demultiplexes the input stream or processes the demultiplexed signals through the tuner unit 110 or the demodulation unit 120 or the external device interface unit 130 so as to output the video or audio output Signals can be generated and output.
The video signal processed by the controller 170 may be input to the display 180 and displayed as an image corresponding to the video signal. Also, the image signal processed by the controller 170 may be input to the external output device through the external device interface unit 130.
The audio signal processed by the control unit 170 may be output to the audio output unit 185 as an audio signal. The audio 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.
In addition, the control unit 170 can control the overall operation in the video display device 100. [ For example, the control unit 170 may control the tuner unit 110 to control the tuning of the RF broadcast corresponding to the channel selected by the user or the previously stored channel.
In addition, the controller 170 may control the image display apparatus 100 according to a user command or an internal program input through the user input interface unit 150.
Meanwhile, the control unit 170 may control the display 180 to display an image. At this time, the image displayed on the display 180 may be a still image or a moving image, and may be a 2D image or a 3D image.
Meanwhile, the controller 170 may generate a 3D object for a predetermined 2D object among the images displayed on the display 180, and display the 3D object. For example, the object may be at least one of a connected web screen (newspaper, magazine, etc.), EPG (Electronic Program Guide), various menus, widgets, icons, still images, moving images, and text.
Such a 3D object may be processed to have a different depth than the image displayed on the display 180. [ Preferably, the 3D object may be processed to be projected relative to the image displayed on the display 180.
On the other hand, the control unit 170 can recognize the position of the user based on the image photographed from the photographing unit (not shown). For example, the distance (z-axis coordinate) between the user and the image display apparatus 100 can be grasped. In addition, the x-axis coordinate and the y-axis coordinate in the display 180 corresponding to the user position can be grasped.
Although not shown in the drawing, a channel browsing processing unit for generating a channel signal or a thumbnail image corresponding to an external input signal may be further provided. The channel browsing processing unit receives the stream signal TS output from the demodulation unit 120 or the stream signal output from the external device interface unit 130 and extracts an image from an input stream signal to generate a thumbnail image . The generated thumbnail image may be stream-decoded together with a decoded image and input to the controller 170. The control unit 170 may display a thumbnail list having a plurality of thumbnail images on the display 180 using the input thumbnail image.
At this time, the thumbnail list may be displayed in a simple view mode displayed on a partial area in a state where a predetermined image is displayed on the display 180, or in a full viewing mode displayed in most areas of the display 180. The thumbnail images in the thumbnail list can be sequentially updated.
The display 180 converts a video signal, a data signal, an OSD signal, a control signal processed by the control unit 170, a video signal, a data signal, a control signal, and the like received from the external device interface unit 130, .
The display 180 may be a PDP, an LCD, an OLED, a flexible display, or the like, and may also be capable of a 3D display.
In order to view the three-dimensional image, the display 180 may be divided into an additional display method and a single display method.
The single display method can implement a 3D image only on the display 180 without a separate additional display, for example, glass, and examples thereof include a lenticular method, a parallax barrier, and the like Various methods can be applied.
On the other hand, the additional display method can implement a 3D image using an additional display as a viewing device (not shown) in addition to the display 180. For example, various methods such as a head mount display (HMD) type, Can be applied.
On the other hand, the glasses type can be further divided into a passive type such as a polarizing glasses type and an active type such as a shutter glass type. Also, the head mount display type can be divided into a passive type and an active type.
On the other hand, the viewing device (not shown) may be a 3D glass for stereoscopic viewing. The glass for 3D (not shown) may include a passive polarizing glass or an active shutter glass, and may be a concept including the head mount type described above.
Meanwhile, 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 the signal processed by the control unit 170 and outputs it as a voice.
A photographing unit (not shown) photographs the user. The photographing unit (not shown) may be implemented by a single camera, but the present invention is not limited thereto, and may be implemented by a plurality of cameras. On the other hand, the photographing unit (not shown) may be embedded in the image display device 100 on the upper side of the display 180 or may be disposed separately. The image information photographed by the photographing unit (not shown) may be input to the control unit 170.
The control unit 170 can detect the gesture of the user based on each of the images photographed from the photographing unit (not shown) or the signals sensed 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 apparatus 200 can use Bluetooth, RF (radio frequency) communication, infrared (IR) communication, UWB (Ultra Wideband), ZigBee, or the like. Also, the remote control apparatus 200 can receive the video, audio, or data signal output from the user input interface unit 150 and display it or output it by the remote control apparatus 200.
Meanwhile, the video display device 100 may be a digital broadcast receiver capable of receiving a fixed or mobile digital broadcast.
Meanwhile, a block diagram of the image display apparatus 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 actually implemented. That is, two or more constituent elements may be combined into one constituent element, or one constituent element may be constituted by two or more constituent elements, if necessary. In addition, the functions performed in each block are intended to illustrate the embodiments of the present invention, and the specific operations and apparatuses do not limit the scope of the present invention.
2, the video display apparatus 100 does not include the tuner unit 110 and the demodulation unit 120 shown in FIG. 2, but may be connected to the network interface unit 130 or the external device interface unit 130 to play back the video content.
On the other hand, the image display apparatus 100 is an example of a video signal processing apparatus that performs signal processing of an image stored in the apparatus or an input image. Another example of the image signal processing apparatus includes a display 180 shown in FIG. 2, A set-top box excluding the audio output unit 185, a DVD player, a Blu-ray player, a game machine, a computer, and the like may be further exemplified. The set-top box will be described with reference to FIGS. 3A to 3B below.
3A and 3B are internal block diagrams of a set-top box according to an embodiment of the present invention.
3A, the set-top box 250 includes a broadcast receiving unit 272, a network interface unit 255, a storage unit 258, a signal processing unit 260, a user input interface unit 263, And a device interface unit 265.
The broadcast receiving unit 272 may include a tuner unit 270 and a demodulation unit 275. In particular, it can receive a broadcast signal, which is received via the antenna 50. The received broadcast signal can be input to the signal processing unit 260.
The network interface unit 255 provides an interface for connection to a wired / wireless network including the Internet network. It can also transmit or receive data to other users or other electronic devices via the connected network or other network linked to the connected network.
The storage unit 258 may store a program for each signal processing and control in the signal processing unit 260 or may store a video, It may perform a function for temporary storage of a signal.
The signal processing unit 260 performs signal processing of an input signal. For example, it is possible to demultiplex or decode an input video signal, and perform demultiplexing or decoding of an input audio signal. To this end, a video decoder or a voice decoder may be provided. The processed video signal or audio signal can be transmitted to the video display device 100 through the external device interface unit 265.
The user input interface unit 263 transfers a signal input by the user to the signal processing unit 260 or a signal from the signal processing unit 260 to the user. For example, various control signals, such as power on / off, operation input, and setting input, input through a local key (not shown) or the remote control device 200, may be received and transmitted to the signal processing unit 260.
The external device interface unit 265 provides an interface for transmitting or receiving data with an external device connected by wire or wirelessly. In particular, it provides an interface for data transmission or reception with the video display device 100. It is also possible to provide an interface for data transmission or reception with an external device such as a game device, a camera, a camcorder, a computer (notebook computer) or the like.
The set-top box 250 may further include a media input unit (not shown) for playing a separate media. An example of such a media input unit is a Blu-ray input unit (not shown) or the like. That is, the set-top box 250 can include a Blu-ray player or the like. After the signal processing such as demultiplexing or decoding in the signal processing unit 260, the input media such as a Blu-ray disc can be transmitted to the video display device 100 through the external device interface unit 265 for display have.
Referring to FIG. 3B, the set-top box 250 is similar to the set-top box 250 of FIG. 3A except that there is no separate broadcast receiver 272, unlike FIG. 3A.
That is, the set-top box 250 does not have a separate broadcast receiving unit 272, and instead can receive broadcast signals through the network interface unit 255.
Operations of the signal processing unit 260 and the like are not described with reference to FIG. 3A.
FIG. 4 is an internal block diagram of the control unit of FIG. 2. FIG.
The control unit 170 includes a demultiplexing unit 310, an image processing unit 320, a processor 330, an OSD generating unit 340, a mixer 345, A frame rate conversion unit 350, and a formatter 360. [0031] An audio processing unit (not shown), and a data processing unit (not shown).
The demultiplexer 310 demultiplexes the input stream. For example, when an MPEG-2 TS is input, it can be demultiplexed into video, audio, and data signals, respectively. The stream signal input to the demultiplexer 310 may be a stream signal output from the tuner 110 or the demodulator 120 or the external device interface 130.
The image processing unit 320 may perform image processing of the demultiplexed image signal. To this end, the image processing unit 320 may include an image decoder 225 and a scaler 235. [
The video decoder 225 decodes the demultiplexed video signal and the scaler 235 performs scaling so that the resolution of the decoded video signal can be output from the display 180.
The video decoder 225 may include a decoder of various standards.
On the other hand, the image signal decoded by the image processing unit 320 can be divided into a case where there is only a 2D image signal, a case where a 2D image signal and a 3D image signal are mixed, and a case where there is only a 3D image signal.
For example, when an external video signal input from the external device 190 or a broadcast video signal of a broadcast signal received from the tuner unit 110 includes only a 2D video signal, when a 2D video signal and a 3D video signal are mixed And a case where there is only a 3D video signal. Accordingly, the controller 170, particularly, the image processing unit 320 and the like can process the 2D video signal, the mixed video signal of the 2D video signal and the 3D video signal, , A 3D video signal can be output.
Meanwhile, the image signal decoded by the image processing unit 320 may be a 3D image signal in various formats. For example, a 3D image signal composed of a color image and a depth image, or a 3D image signal composed of a plurality of view image signals. The plurality of viewpoint image signals may include, for example, a left eye image signal and a right eye image signal.
Here, the format of the 3D video signal is a side-by-side format in which the left-eye image signal L and the right-eye image signal R are arranged in left and right directions, a top- An interlaced format in which the left and right eye image signals and the right eye image signal are mixed line by line, a checker box for mixing the left eye image signal and the right eye image signal box by box, Format, and the like.
The processor 330 may control the overall operation in the image display apparatus 100 or in the control unit 170. [ For example, the processor 330 may control the tuner 110 to select a channel selected by the user or an RF broadcast corresponding to 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 transfer control with the network interface unit 135 or the external device interface unit 130.
The processor 330 may control operations of the demultiplexing unit 310, the image processing unit 320, the OSD generating unit 340, and the like in the controller 170.
The OSD generation unit 340 generates an OSD signal according to a user input or by itself. For example, based on a user input signal, a signal for displaying various information in a graphic or text form on the screen of the display 180 can be generated. The generated OSD signal may include various data such as a user interface screen of the video display device 100, various menu screens, a widget, and an icon. In addition, the generated OSD signal may include a 2D object or a 3D object.
The OSD generating unit 340 can generate a pointer that can be displayed on the display based on the pointing signal input from the remote control device 200. [ In particular, such a pointer may be generated by a pointing signal processing unit, and the OSD generating unit 240 may include such a pointing signal processing unit (not shown). Of course, a pointing signal processing unit (not shown) may be provided separately from the OSD generating unit 240.
The mixer 345 may mix the OSD signal generated by the OSD generator 340 and the decoded video signal processed by the image processor 320. At this time, the OSD signal and the decoded video signal may include at least one of a 2D signal and a 3D signal. The mixed video signal is supplied to a frame rate converter 350.
A frame rate converter (FRC) 350 can convert the frame rate of an input image. On the other hand, the frame rate converter 350 can output the frame rate without conversion.
The formatter 360 may arrange the left eye image frame and the right eye image frame of the frame rate-converted 3D image. Then, the left eye glass of the 3D viewing apparatus (not shown) and the synchronization signal Vsync for opening the right eye glass can be output.
The formatter 360 receives the mixed signal, i.e., the OSD signal and the decoded video signal, from the mixer 345, and separates the 2D video signal and the 3D video signal.
On the other hand, the formatter 360 can change the format of the 3D video signal. For example, it can 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, according to a 3D image generation algorithm, an edge or a selectable object is detected in a 2D image signal, and an object or a selectable object according to the detected edge is separated into a 3D image signal and is generated . At this time, the generated 3D image signal can be separated into the left eye image signal L and the right eye image signal R, as described above.
Although not shown in the drawing, it is also possible that a 3D processor (not shown) for 3-dimensional effect signal processing is further disposed after the formatter 360. The 3D processor (not shown) can process the brightness, tint, and color of the image signal to improve the 3D effect. For example, it is possible to perform signal processing such as making the near field clear and the far field blurring. On the other hand, the functions of such a 3D processor can be merged into the formatter 360 or merged into the image processing unit 320. [
Meanwhile, the audio processing unit (not shown) in the control unit 170 can perform the audio processing of the demultiplexed audio signal. To this end, the audio processing unit (not shown) may include various decoders.
In addition, the audio processing unit (not shown) in the control unit 170 can process a base, a treble, a volume control, and the like.
The data processing unit (not shown) in the control unit 170 can perform data processing of the demultiplexed data signal. For example, if the demultiplexed data signal is a coded data signal, it can be decoded. The encoded data signal may be EPG (Electronic Program Guide) information including broadcast information such as a start time and an end time of a broadcast program broadcasted on each channel.
4 shows that the signals from the OSD generating unit 340 and the image processing unit 320 are mixed in the mixer 345 and then 3D processed in the formatter 360. However, May be located behind the formatter. That is, the output of the image processing unit 320 is 3D-processed by the formatter 360, and the OSD generating unit 340 performs 3D processing together with the OSD generation. Thereafter, the processed 3D signals are mixed by the mixer 345 It is also possible to do.
Meanwhile, the block diagram of the controller 170 shown in FIG. 4 is a block diagram for an embodiment of the present invention. Each component of the block diagram can be integrated, added, or omitted according to the specifications of the control unit 170 actually implemented.
In particular, the frame rate converting unit 350 and the formatter 360 are not provided in the controller 170, and may be separately provided, or may be separately provided as one module.
5 is a diagram showing a control method of the remote control apparatus of FIG.
5A illustrates that the pointer 180 corresponding to the remote control device 200 is displayed on the display 180. In this case,
The user can move or rotate the remote control device 200 up and down, left and right (Figure 5 (b)), and back and forth (Figure 5 (c)). The pointer 205 displayed on the display 180 of the video display device corresponds to the movement of the remote control device 200. [ As shown in the figure, the remote controller 200 can be referred to as a space remote controller or a 3D pointing device because the pointer 205 is moved and displayed according to the movement in the 3D space.
5B illustrates that when the user moves the remote control apparatus 200 to the left, the pointer 205 displayed on the display 180 of the image display apparatus also shifts to the left correspondingly.
Information on the motion of the remote control device 200 sensed through the sensor of the remote control device 200 is transmitted to the image display device. The image display apparatus can calculate the coordinates of the pointer 205 from the information on the motion of the remote control apparatus 200. [ The image display apparatus can display the pointer 205 so as to correspond to the calculated coordinates.
5C illustrates a case in which the user moves the remote control device 200 away from the display 180 while pressing a specific button in the remote control device 200. FIG. Thereby, the selected area in the display 180 corresponding to the pointer 205 can be zoomed in and displayed. Conversely, when the user moves the remote control device 200 close to the display 180, the selection area within the display 180 corresponding to the pointer 205 may be zoomed out and zoomed out. 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, when the specific button in the remote control device 200 is pressed, it is possible to exclude recognizing the up, down, left, and right movement. That is, when the remote control apparatus 200 moves away from or approaches the display 180, it is not recognized that the up, down, left, and right movements are recognized, and only the forward and backward movements are recognized. Only the pointer 205 is moved in accordance with the upward, downward, leftward, and rightward movement of the remote control device 200 in a state where the specific button in the remote control device 200 is not pressed.
On the other hand, the moving speed and moving direction of the pointer 205 may correspond to the moving speed and moving direction of the remote control device 200.
FIG. 6 is an internal block diagram of the remote control device of FIG. 2. FIG.
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, And a control unit 480.
The wireless communication unit 425 transmits / receives a signal to / from any one of the video display devices according to the embodiments of the present invention described above. Of the video display devices according to the embodiments of the present invention, one video display device 100 will be described as an example.
In this embodiment, the remote control apparatus 200 may include an RF module 421 capable of transmitting and receiving signals 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 signals to and from the image display apparatus 100 according to the IR communication standard.
In the present embodiment, the remote control device 200 transmits a signal containing information on the motion and the like of the remote control device 200 to the image display device 100 through the RF module 421.
Also, the remote control device 200 can receive the signal transmitted by the video display device 100 through the RF module 421. [ In addition, the remote control device 200 can transmit a command regarding power on / off, channel change, volume change, and the like to the video display device 100 through the IR module 423 as necessary.
The user input unit 435 may include a keypad, a button, a touch pad, or a touch screen. The user can input a command related to the image display apparatus 100 to the remote control apparatus 200 by operating the user input unit 435. [ When the user input unit 435 has a hard key button, the user can input a command related to the image display device 100 to the remote control device 200 through the push operation of the hard key button. When the user input unit 435 includes a touch screen, the user can touch a soft key of the touch screen to input a command related to the image display apparatus 100 to the remote control apparatus 200. [ In addition, the user input unit 435 may include various types of input means such as a scroll key, a jog key, etc., which can be operated by the user, and the present invention is not limited to 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 can sense information about the motion of the remote control device 200. [
For example, the gyro sensor 441 can sense information about the operation of the remote control device 200 based on the x, y, and z axes. The acceleration sensor 443 can sense information on the moving speed and the like of the remote control device 200. On the other hand, a distance measuring sensor can be further provided, whereby the distance to the display 180 can be sensed.
The output unit 450 may output an image or a voice signal corresponding to the operation of the user input unit 435 or corresponding to the signal transmitted from the image display apparatus 100. [ The user can recognize whether the user input unit 435 is operated or whether the image display apparatus 100 is controlled through the output unit 450.
For example, the output unit 450 includes an LED module 451 that is turned on when a user input unit 435 is operated or a signal is transmitted / received to / from the video display device 100 through the wireless communication unit 425, a vibration module 453 for outputting sound, an audio 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 can reduce power waste by interrupting the power supply when the remote controller 200 is not moving for a predetermined period of time. The power supply unit 460 may resume power supply when a predetermined key provided in the remote control device 200 is operated.
The storage unit 470 may store various types of programs, application data, and the like necessary for the control or operation of the remote control apparatus 200. [ If the remote control device 200 wirelessly transmits and receives a signal through the image display device 100 and the RF module 421, the remote control device 200 and the image display device 100 transmit signals through a predetermined frequency band Send and receive. The control unit 480 of the remote control device 200 stores information on the frequency band and the like capable of wirelessly transmitting and receiving signals with the video display device 100 paired with the remote control device 200 in the storage unit 470 Can be referenced.
The control unit 480 controls various items related to the control of the remote control device 200. The control unit 480 transmits a signal corresponding to a predetermined key operation of the user input unit 435 or a signal corresponding to the motion of the remote control device 200 sensed by the sensor unit 440 through the wireless communication unit 425, (100).
The user input interface unit 150 of the image display apparatus 100 includes a wireless communication unit 151 capable of wirelessly transmitting and receiving signals to and from the remote control apparatus 200 and a pointer corresponding to the operation of the remote control apparatus 200. [ And a coordinate value calculation unit 415 that can calculate the coordinate value of the coordinate system.
The user input interface unit 150 can wirelessly transmit and receive signals to and from the remote control device 200 through the RF module 412. Also, the remote control device 200 can receive a signal transmitted through the IR module 413 according to the IR communication standard.
The coordinate value calculator 415 corrects the camera shake or error from the signal corresponding to the operation of the remote controller 200 received via the wireless communication unit 151 and outputs the coordinate value of the pointer 202 to be displayed on the display 170 (x, y) can be calculated.
The transmission signal of the remote control device 200 inputted to the image display device 100 through the user input interface unit 150 is transmitted to the control unit 180 of the image display device 100. [ The control unit 180 can determine the information about the operation of the remote control device 200 and the key operation from the signal transmitted from the remote control device 200 and control the video display device 100 accordingly.
As another example, the remote control device 200 may calculate the pointer coordinate value corresponding to the operation and output it to the user input interface unit 150 of the video display device 100. [ In this case, the user input interface unit 150 of the image display apparatus 100 may transmit information on the received pointer coordinate values to the control unit 180 without any additional camera shake or error correction process.
As another example, the coordinate value calculating unit 415 may be provided in the control unit 170 instead of the user input interface unit 150, unlike the drawing.
7 is an internal block diagram of the server of 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 receives the channel number information and the channel name information (MBS, CBB, KBB, NCC, etc.) from at least one video display device, or receives each generated channel map information have.
The network interface unit 730 further receives program names (Oh! Lady, ABC news, DR. OZ, etc.) broadcasted from the at least one video display devices in addition to the broadcast channel names .
The storage unit 740 includes a plurality of channel maps. The plurality of channel maps may include a channel map for cable broadcasting (terrestrial or analog), a channel map for terrestrial analog broadcasting, a channel map for phase broadcasting, and a channel map for IPTV. On the other hand, the channel map for the cable broadcasting may be classified by region or classified according to the cable broadcasting service type.
The processor 720 selects a corresponding channel map among the plurality of channel maps in the storage unit 740 using the received channel map information, channel number information, and channel name information from at least one video display device , And to transmit information on the selected channel map to each video display device.
On the other hand, when the channel map corresponding to each of the video display devices 100a, 100b, ..., 100n is not stored in the server 500, the processor 720 receives the channel map through another server, It is possible to control to select a channel map corresponding to the display devices 100a, 100b, ..., 100n.
Alternatively, the processor 720 may determine that the channel map corresponding to each of the video display devices 100a, 100b, ..., 100n is not stored in the server 500 or that the corresponding channel map is matched If a predetermined number of channel maps among the channel maps received by the respective video display devices 100a, 100b, ..., 100n match each other, the corresponding channel map is stored as a new channel map in the storage unit 740, As shown in FIG.
Meanwhile, the processor 720 can generate real-time viewership information or the like using real-time broadcast information or broadcast image images received from a plurality of video display devices. The real-time viewership information at this time may include channel share information, channel viewer number information, broadcast program share information of a specific channel, information on the number of viewers of a specific channel, and the like. In addition, it may include real-time channel search information, real-time program search information, and the like.
On the other hand, the processor 720 compares an image including broadcast information received from a plurality of video display devices with a real-time broadcast image received through a network, Or not.
In case of a real-time broadcast image, the processor 720 may extract broadcast information such as channel information, program information, and the like from the broadcast image, and may generate real-time viewership information or the like based on the extracted broadcast information.
On the other hand, the network interface unit 730 can transmit channel number information, channel name information, and the like in the selected channel map or channel map to each video display device.
Meanwhile, the network interface unit 730 can transmit the generated real-time audience rating information to at least one of the plurality of video display devices. Preferably, the generated real time rating information is transmitted to all the image display apparatuses that have transmitted the image including the broadcast information or the broadcast information.
FIG. 8 is a flowchart showing an operation method of an image display apparatus according to an embodiment of the present invention, FIG. 9 is a flowchart showing an operation method of a server according to an embodiment of the present invention, Or < / RTI > various embodiments of the method of operation of FIG.
First, the video display apparatus 100 receives a broadcast signal of a predetermined channel (S815). On the other hand, the step 1015 (S1015) of FIG. 10 corresponds to the step 815 (S815).
For example, the predetermined channel may be a channel by user input. For example, when the user selects a specific channel using the remote control device 200 or a local key (not shown), the broadcast receiving unit 105 can receive the broadcast signal corresponding to the channel . The control unit 170 can receive the received broadcast signal.
11A illustrates that a broadcast signal of a specific channel is received at a first time T1 and a broadcast image 1102 of the channel is displayed on the video display device 100. [ Next, FIG. 11B illustrates that the broadcast image 1106 of the same channel as FIG. 11A is displayed on the video display device 100 at the second time T2.
As another example, the broadcast signal of a predetermined channel may be a broadcast signal of a corresponding channel when the channel is sequentially changed in the channel search mode and is searched. Here, the channel search mode can be entered according to user input or automatically.
13A illustrates that the automatic channel search mode is performed. As shown in the drawing, when the user enters the automatic channel search mode, an automatic channel search is performed, and an object 1120 representing the automatic channel search can be displayed as shown in the figure.
On the other hand, the object 1120 indicating the automatic channel search mode can be displayed together with the broadcast image 1110 of the channel 9 (CH 9) being viewed. The corresponding object 1120 can be displayed transparently so that the broadcast image 1110 of the channel being viewed can be seen.
On the other hand, the controller 170 of the video display device 100 controls the automatic channel search mode to be an automatic channel search mode by user input for entering the automatic channel search mode. That is, the control unit 105 controls the broadcast receiving unit 105 to change the channel of the inputted broadcast signal while searching for it.
Next, the image display apparatus 100 captures a broadcast image corresponding to the received broadcast signal (S820). Then, the captured broadcast image is transmitted to the server 500 (S825). 10 (S1020) and 1025 (S1020) of FIG. 10 correspond to steps 820 (S820) and 825 (S825), respectively.
The control unit 170 of the video display device 100 extracts broadcast video data among the received broadcast signals and performs video signal processing for displaying the broadcast video data on the display 180. Here, the control unit 170 can transmit the signal-processed image to the display unit 180 on a frame-by-frame basis. At this time, the control unit 170 may capture a broadcast image on a frame basis in order to confirm a channel name of the channel, that is, a logo. Then, it is possible to control the captured image to be stored in the storage unit 140.
Here, the captured broadcast image frame may be any one of an I video frame, a P video frame, and a B video frame, and hereinafter, it is assumed that the video frame is an I video frame. The storage unit 140 may store the captured I-image frame.
Next, the control unit 170 of the video display device 100 controls to transmit the captured broadcast image to the server 500 through the network interface unit 135, in order to confirm the channel name of the channel, that is, the logo .
11A and 11B, a logo image 1104 indicating the name of the channel in the displayed broadcast image 1102 and a broadcast image 1106 displayed at the second time T2 are displayed at the first time T1, And the logo image 1108 indicating the channel name in the image.
For example, in the state where the logo image 1104 of FIG. 11A is stored in the storage unit 140 as the logo image of the channel, the logo image 1108 in the captured broadcast image 1104 of FIG. 11B, In the case of comparing the logo images 1104 of the logo images 1104, it is necessary to recognize them as different logo images. As a result, channel matching can not be performed smoothly.
On the other hand, FIG. 11C illustrates that a broadcasting station transmitting a new broadcasting channel is opened, and a broadcasting image 1112 for a new channel is displayed on the video display device 100. FIG. 11C illustrates the inclusion of a new channel logo image 1114 in the broadcast image 1112 indicating the channel name. In the case of a new broadcast channel, since the stored logo image is not stored in the storage unit 140, channel matching can not be performed smoothly.
In the practice of the present invention, a method of storing the latest logo image in the storage unit 140 is proposed to prevent such mismatching. In one way, the captured broadcast image is transmitted to the server 500 through the network interface unit 135.
12A shows a first broadcast image 1106 displayed on the video display device 100 at time Ta and a second broadcast image 1107 displayed at the video display device 100 at time Tb, The third broadcast image 1109 is displayed on the image display apparatus 100. [ In this case, the first to third broadcast images 1106, 1108, and 1109 include an image representing a channel name, i.e., a logo image 1108.
The image display apparatus 100 may sequentially transmit the broadcast images 1106, 1108, and 1109 to be captured to the server 500 for updating the logo image.
Next, the server 500 stores the captured broadcast image (S928). Then, based on the captured broadcast image, logo data is extracted (S933). Then, the extracted logo data is transmitted to the image display apparatus 100 (S935). Correspondingly, the video display device 100 receives the logo data from the server 500 (S835). Then, the video display device 100 stores the received logo data (S840). 10, steps S 1028 and S 1033 correspond to steps S 928 and S 933, respectively, and step 1035 (step S 1035) of FIG. 10 corresponds to steps S 928 and S 933 , Steps 835 and 935 correspond to steps 840 and 1040 of FIG. 10, respectively.
The server 500 receives the broadcast image captured from the video display device 100 through the network interface unit 730. In particular, it is possible to sequentially receive a plurality of captured broadcast images for the same channel. Here, the plurality of captured broadcast images may be the same broadcast program image within the same channel, but not limited thereto, and may be another broadcast program image within the same channel.
The processor 720 can manage a plurality of received broadcast images for each broadcast channel. That is, the captured broadcast images may be collected for each broadcast channel, and a channel logo template for the corresponding channel may be generated.
The processor 720 may extract a common image among a plurality of captured broadcast images in the channel logo template as a logo image of the corresponding channel.
12B shows that in the server 500 a channel logo template 1122 having a plurality of captured broadcast images 1116,1117 and 1119 is generated and based on the channel logo template 1122, The logo image 1123 of the corresponding channel is extracted.
12C, the server 500 can transmit the extracted logo image 1123 to the image display apparatus 100 through the network interface unit 730. [0156] As shown in FIG. Accordingly, the image display apparatus 100 can receive the extracted logo data, i.e., the extracted logo image 1123 through the network interface unit 135. [ The logo data received in the storage unit 140, that is, the extracted logo image 1123, can be stored. Thus, it is possible to store the latest logo data for the channel.
Next, the video display device 100 compares the captured broadcast image with the received logo data, and confirms the channel name of the corresponding channel (S850). Then, the channel map information is generated using the channel number information and the channel name information (S855). Here, steps 1050 (S1050) and S1055 (S1055) of FIG. 10 correspond to steps 850 and 845 of FIG. 8, respectively.
When the received broadcast signal is a digital broadcast signal received through the antenna, the control unit 170 can extract channel number information or channel name information included in the broadcast signal. The extracted channel number information and channel name information are stored in the storage unit 140. At this time, it may be stored in the storage unit 140 as a channel map.
FIG. 13B illustrates that the first broadcast signal Sa of the channel 9 is received by the video display device 100. FIG. The display 180 of the image display apparatus 100 may display the first broadcast image 1130 for the received first broadcast signal Sa. In this case, since the channel 9 is a digital broadcast signal, when a broadcast signal of the channel 9 is received through the antenna, the storage unit 140 stores channel number information (channel 9), channel name information (KBS 1).
On the other hand, when the received broadcast signal is an analog broadcast signal, the channel number information is included in the broadcast signal, but the channel name information may not be included. In this case, the control unit 170 can perform demultiplexing and image signal processing on the received broadcast signals, and capture and store the processed broadcast images. The stored broadcast image can be stored in the storage unit 140 as a still image. Meanwhile, the broadcast image to be stored is preferably stored together with the channel number information.
FIG. 13D illustrates that the third broadcast signal Sc of the channel 20 is received by the video display device 100. FIG. The display 180 of the image display apparatus 100 can display the third broadcast image 1134 with respect to the received third broadcast signal Sc. At this time, since the channel 20 is an analog broadcast signal, the storage unit 140 may store the frame image 1154 of the broadcast image. Meanwhile, the storage unit 140 may further store channel number information (channel 20) in the form of a channel map 1144.
In the channel search mode, the video display apparatus 100 determines whether the channel search is terminated. If the channel search is not terminated, the video display apparatus 100 can search for the next channel. In operation 850 (S850) and operation 855 (S855), the broadcast signal of the searched next channel can be repeatedly performed.
13C illustrates that the second broadcast signal Sb of the channel 11 is received by the video display device 100. FIG. The display 180 of the image display apparatus 100 may display the second broadcast image 1132 for 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 the antenna, the storage unit 140 stores the channel number 1142 in the form of the channel map 1142 as in step 823 (S823) Information (channel 11), and channel name information (MBC).
FIG. 13E illustrates that the sixth broadcast signal Sf of the channel 23 is received by the video display device 100. FIG. The display 180 of the image display apparatus 100 can display the sixth broadcast image 1137 for the received sixth broadcast signal Sf. At this time, since the channel 23 is an analog broadcast signal, the storage unit 140 may store the frame image 1157 of the broadcast image. Meanwhile, the storage unit 140 may further store channel number information (channel 23) in the form of a channel map 1147.
14A illustrates the checking of the channel name through the logo detection that indicates the channel name in the broadcast image 1155 corresponding to the channel 21 stored in the storage unit 140. [
The control unit 170 compares the captured broadcast image 1155 corresponding to the channel 21 with the channel logo image previously stored in the storage unit 140 and confirms the corresponding channel name.
14A, the control unit 170 captures the broadcast image 1155, compares the captured broadcast image 1155 with the channel logo image stored in the storage unit 140, and stores the channel name 1214 ) (tvN) can be confirmed.
14B, the identified channel name 1214 (tvN) may be stored in the storage unit 140 in the form of a channel map 1240 together with the channel number CH21.
Next, Fig. 14B illustrates confirming the channel name for the channel 23. Fig.
The control unit 170 can compare the captured broadcast image 1153 corresponding to the channel 23 with the channel logo image previously stored in the storage unit 140 and confirm the corresponding channel name.
The controller 170 extracts the logo image 1222 displayed on the upper right side of the broadcast image 1153 and extracts the extracted logo image 1222 and the stored logo image 1222 in the storage unit 140 as shown in FIG. It is possible to check the channel name 1224 (New Y) of the corresponding channel by comparing the logo image of the corresponding channel.
The identified channel name 1224 (New Y) may be stored in the storage unit 140 in the form of a channel map 1242 together with the channel number CH 23 as shown in FIG. 14B (b).
Meanwhile, during the channel map generation process, there may be a broadcast image that does not include the channel logo image.
If the channel logo image does not exist, the image display apparatus 100 transmits the channel number information and the channel name information confirmed by the server (S870). Meanwhile, step 870 (S870) of FIG. 8 corresponds to step 970 (S970) of FIG. 9 and step 1070 (S1070) of FIG.
If the image representing the channel name does not exist in the broadcast image, the controller 170 can not confirm the channel name for the channel, so that the controller 170 can control to transmit the confirmed channel number information and channel name information to the server 500 have.
For example, the control unit 170 can control the server 500 to transmit the generated channel map 1242 through the network interface unit 135, as shown in FIG. 14C.
The channel map 1242 shown in FIG. 14C includes channel names for the digital broadcast channels 9 and 11 and includes 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 do not include a channel name.
The server 500 receives the channel number information and channel name information confirmed from the video display device 100 (S970). The network interface unit 730 in the server 500 receives channel number information and channel name information confirmed from the video display device. Alternatively, the generated channel map can be received. On the other hand, step 970 (S970) of FIG. 9 corresponds to step 870 (S870) of FIG. 8 and step 1070 (S1070) of FIG.
Next, the server 500 selects the corresponding channel map using the received channel number information and channel name information (S973). The processor 720 of the server 500 selects a channel map corresponding to the channel map received from the video display device 100 using a plurality of channel maps stored in the storage unit 740. [ On the other hand, step 973 (S973) of FIG. 9 corresponds to step 1073 (S1073) of FIG.
For example, since some channels 9, 11, 21 and 23 of the channel map 1242 of FIG. 14C include channel names, the channel numbers 9, 11, 21 and 23 and channel names KBS1, tvN, NewY) can be used to select the corresponding completed channel map.
Next, the server 500 transmits the channel map information for the selected channel map to the video display device 100 (S975). The network interface unit 730 in the server 500 transmits the channel map information for the selected channel map to the video display device 100. [ On the other hand, step 975 (S975) of FIG. 9 corresponds to step 875 (S875) of FIG. 8 and step 1075 (S1075) of FIG.
For example, the server 500 can directly transmit the selected channel map 1244 to the video display device 1244 via the network interface 135 as shown in FIG. 14D. Alternatively, it is also possible to transmit channel name information (KBC, SBC) for the broadcast channels 20, 22 that do not include the channel name in the channel map 1242 of FIG. 14C.
Next, the image display apparatus 100 updates the channel map using the received channel map information (S880). Meanwhile, step 880 (S880) of FIG. 8 corresponds to step 880 (880) of FIG.
The channel map information received through the network interface unit 135 of the video display device 100 may be input to the control unit 170. The controller 170 can complete the unfinished channel map using the received channel map information.
As shown in FIG. 14D, when the selected channel map 1244 is directly received in the video display device 100, the received channel map 1244 can be replaced with the channel map being generated. That is, the channel map being generated can be updated to the received channel map 1244.
Alternatively, when the channel name information (KBC, SBC) for the broadcast channels 20 and 22 that do not include the channel name among the selected channel map 1244 is received, Map 1244. < / RTI >
Accordingly, the channel names (KBC, SBC) for the channels 20 and 22 that can not be confirmed by the image display apparatus 100 can be easily recognized.
On the other hand, after step 855 (S855) or after step 880 (S880), a step of determining whether the channel map is completed can be performed.
15A illustrates that the unfinished channel map 134 or the location information of the image display apparatus 100 or the network information S1 is transmitted from the image display apparatus 100 to the server 500. [
The control unit 170 of the video display device 100 can control to transmit the unfinished channel map 134 or the location information of the video display device 100 or the network information S1 through the network interface unit 135 have.
Here, the location information or the network information S1 may be a concept including the IP address of the image display apparatus 100, area information, and the like. Through this information, the server 500 can easily identify the broadcast service provider to which the video display device 100 is subscribed.
On the other hand, in the channel map of FIG. 15A, the channel name (OCN...) For the channel numbers 25, 26, 32 and 29 is confirmed in step 1340, but the channel name for the channel 52 is not confirmed.
FIG. 15B illustrates an example of channel map selection in the server 500. FIG.
15A, the processor 720 of the server 500 receives the location information of the unfinished channel map 1340 or the video display device 100 or the network information 1340 received via the network interface 730, (S1) can be used.
That is, a plurality of channel maps stored in the storage unit 740 (FIG. 15B) are generated using the unfinished channel map 134 or the location information of the video display device 100 or the network information S1 1350 < / RTI >
For example, when the location information or the network information S1 indicates a specific area (e.g., Seocho-gu), the processor 720 of the server 500 stores Only a broadcast service provider list 1360 that provides a broadcast service can be searched in a specific region of the broadcast service information list 1350 including a plurality of broadcast service providers stored in the broadcast service provider list 1350.
FIG. 15B (c) illustrates that three broadcast service providers 1362, 1364, 1366 are extracted.
The processor 720 of the server 500 matches the channel maps provided by the three broadcast service providers 1362, 1364, and 1366 using the unfinished channel map 1340 received. Then, the processor 720 of the server 500 selects a corresponding channel map.
FIG. 15C illustrates comparing with the channel maps 1372, 1374, 1376 corresponding to the three broadcast service providers, using the unfinished channel map 1340 received. Referring to the drawing, it can be seen that the channel map corresponding to the incomplete channel map 1340 corresponds to the first channel map 1372. Thus, the channel name (YSS) for the channel 52 can be known.
Next, the processor 720 of the server 500 can control to transmit the selected channel map 1372 to the video display device 100. [
FIG. 15D illustrates that the selected channel map information 1372 is transmitted from the server 500. FIG. At this time, the channel map information may further include broadcast service provider information 1343 for providing a broadcast service to the video display device 100, in addition to channel number information and channel name information. The broadcast service provider information 1343 can be transmitted separately from the channel map information 1372.
Meanwhile, the channel map information transmitted from the server 500 to the video display device 100 may include channel number information, channel name information, and broadcast service type information provided from a broadcast service provider.
FIG. 15E illustrates channel maps 1382, 1384, and 1386 according to broadcast service type information provided by the same broadcast service provider. It can be seen that each channel map is classified into a stationary channel map 1382, a basic channel map 1384, an advanced channel map 1386, and the like, depending on the service type.
The processor 720 of the server 500 can compare the channel maps 1382, 1384, and 1386 according to the broadcast service type information using the incomplete channel map received from the video display device 100. [ Then, the corresponding channel map 1386 can be selected.
FIG. 15F illustrates that the selected channel map information 1386 is transmitted from the server 500. FIG. The channel map information at this time may further include a broadcast service type information (advanced type) 1344 for providing a broadcast service to the video display device 100, in addition to the channel number information and the channel name information. The broadcast service type information (advanced type) 1344 can be transmitted separately from the channel map information 1386. [
16 is a flowchart illustrating an operation method of an image display apparatus according to another embodiment of the present invention.
The flowchart of FIG. 16 is similar to the flowchart of FIG. 8, and the difference will be mainly described below. In particular, the operation method of the video display device of FIG. 16 differs from that of the video display device 100 in that the logo data extraction is performed not by the server 500 directly.
Accordingly, steps 1615 to 1620 (S1615 and S1620) and operations 1650 to 1680 (S1650 to S1680) are performed in steps 815 to 820 (S815 and S820), 850 to 880 (S850 to S880).
In steps 1625 to 1640, the image display device stores the captured broadcast image (S1625). Then, the logo data of the channel among the plurality of captured broadcast images stored is extracted (S1635). Then, the extracted logo data is stored (S1640).
12A to 12B, the controller 170 of the video display device 100 can capture broadcast images of broadcast signals sequentially received. That is, it is possible to sequentially capture broadcast images 1106, 1108, and 1109 of the same channel as shown in FIG. 12A.
Then, the video display apparatus 100 sequentially stores the captured broadcast images 1106, 1108, and 1109 in the storage unit 140.
The control unit 170 can manage a plurality of received broadcast images for each broadcast channel. That is, the captured broadcast images may be collected for each broadcast channel, and a channel logo template for the corresponding channel may be generated.
The control unit 170 may extract a common image among a plurality of captured broadcast images in the channel logo template as a logo image of the corresponding channel.
12B illustrates that the logo image 1123 of the channel is extracted in the server 500. Similarly, the logo image 1123 of the corresponding channel can be extracted by the image display apparatus 100 . The control unit 170 may control the storage unit 140 to store the extracted logo image 1123 as the latest logo image. This makes it possible to simply store the latest logo image.
Meanwhile, it is possible to connect to the server 500 and compare the latest logo image stored with the logo image of the corresponding channel stored in the server 500, in order to confirm whether the logo image of the corresponding channel fits. It is also possible to transmit the latest logo image stored in the storage unit 140 to the server 500 or to receive the logo image of the corresponding channel from the server 500. [
On the other hand, after updating the latest channel logo image, step 1650 and subsequent steps for channel map generation may be performed as described above.
The image display apparatus, the server and the operation method thereof according to the present invention are not limited to the configurations and the methods of the embodiments described above, but the embodiments are not limited thereto, Or some of them may be selectively combined.
Meanwhile, the method of operating the video display device or the method of operating the server of the present invention can be implemented as a code that can be read by a processor in a video-display device or a recording medium readable by a processor included in the server. The processor-readable recording medium includes all kinds of recording apparatuses in which data that can be read by the processor is stored. Examples of the recording medium that can be read by the processor include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an 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 . In addition, the processor-readable recording medium may be distributed over network-connected computer systems so that code readable by the processor in a distributed fashion can be stored and executed.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the present invention.
