KR20170101077A - Server, Electronic device and operating method for the same - Google Patents

Abstract

An image display device is disclosed. The image display device includes a communication part for receiving information on an integrated frequency band corresponding to a region where the image display device is located from a server, a display part, a processor, a memory, and one or more programs stored in the memory and executed by the processor. The one or more programs include instructions for searching a channel that can be received by the image display device among channels included in the integrated frequency band and displaying the search result on the display part. The integrated frequency band may be a frequency band determined based on frequency bands that can be received by other image display devices located in the same region as the image display device. It is possible to minimize time required for searching the channel.

Description

[0001] DESCRIPTION [0002] Server, video display device and operating method thereof [0003]

The present invention relates to a server, an image display apparatus and an operation method thereof, and more particularly, to a server, an image display apparatus, and an operation method thereof that speed up a channel search speed in automatic channel search.

A video display device is a device having a function of displaying an image that a user can view. The user can view the broadcast through the video display device. A video display device displays a broadcast selected by a user among broadcast signals transmitted from a broadcast station on a display.

In addition, a smart TV providing various contents in addition to a broadcasting function is provided. The smart TV aims at analyzing and providing what the user desires without user's operation, rather than manually operating according to the user's selection.

On the other hand, the video display device provides an automatic channel search function. The automatic channel search function means searching for available channels in a preset frequency band and providing them. However, even if the actual effective frequency band differs from the predetermined frequency band depending on the region and the broadcasting company, there is a problem that it takes a long time to search the channel by searching all the channels in the preset frequency band.

Various embodiments provide an image display apparatus and an operation method thereof that can minimize the time required for channel search by performing a channel search based on integrated frequency band information and a server that provides integrated frequency band information according to regions .

A video display apparatus according to an embodiment includes a communication unit for receiving information on an integrated frequency band corresponding to an area where the video display device is located from a server, a display unit, a processor, a memory, Wherein the one or more programs include instructions for searching a channel that can be received by the video display apparatus among the channels included in the integrated frequency band and displaying the search result on the display unit, The integrated frequency band may be a frequency band determined based on frequency bands capable of being received by other video display devices located in the same area as the video display device.

According to an embodiment of the present invention, there is provided a method of operating an image display device, comprising: receiving information on an integrated frequency band corresponding to an area where the image display device is located from a server; And displaying the search result, wherein the integrated frequency band is based on frequency bands capable of being received by other video display devices located in the same area as the video display device, May be a determined frequency band.

The server according to an exemplary embodiment may include first frequency band information corresponding to channels receivable in a first video display device located in the same region and second frequency band information corresponding to channels receivable in the second video display device A processor, a memory, and one or more programs stored in the memory and being executed by the processor, the one or more programs being configured to generate, based on the first frequency band information and the second frequency band information, , Generate integrated frequency band information corresponding to the same area, store the integrated frequency band information, and transmit the integrated frequency band information to a third image display device located in the same area have.

The server according to an exemplary embodiment may provide an integrated frequency band including only a frequency band that is actually valid depending on a region.

The image display apparatus according to one embodiment can perform channel search using the integrated frequency band, thereby minimizing the time required for channel search. Thus, the usability of the user can be improved.

1 is a diagram illustrating an image display apparatus and a server according to an embodiment.
2 is a block diagram illustrating a configuration of an image display apparatus according to an exemplary embodiment.
3 is a block diagram showing a configuration of a video display device according to another embodiment.
4 is a block diagram showing a configuration of a server according to an embodiment.
FIG. 5 is a diagram illustrating an example in which a channel search setting screen is displayed on an image display apparatus according to an embodiment.
FIGS. 6 and 7 are diagrams for explaining a method of searching for a channel in the fast scan mode by the image display apparatus according to an embodiment.
8 and 9 are views for explaining a method of searching for a channel in the general scan mode by the image display apparatus according to an embodiment.
FIG. 10 is a diagram for explaining a method of operating a server and an image display device when a new channel is added to the server or when the integrated frequency band information is updated.
11 is a flowchart illustrating an operation method of an image display apparatus according to an embodiment.

The terms used in this specification will be briefly described and the present invention will be described in detail.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. Also, in certain cases, there may be a term selected arbitrarily by the applicant, in which case the meaning thereof will be described in detail in the description of the corresponding invention. Therefore, the term used in the present invention should be defined based on the meaning of the term, not on the name of a simple term, but on the entire contents of the present invention.

When an element is referred to as "including" an element throughout the specification, it is to be understood that the element may include other elements, without departing from the spirit or scope of the present invention. Also, the terms "part," " module, "and the like described in the specification mean units for processing at least one function or operation, which may be implemented in hardware or software or a combination of hardware and software .

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

1 is a diagram showing an image display apparatus 100 and a server 50 according to an embodiment.

As shown in FIG. 1, the image display apparatus 100 may be a television (TV), but this is merely an example and may be embodied as an electronic device capable of receiving a broadcast signal and displaying an image based on the broadcast signal . For example, the image display apparatus 100 may be a mobile phone, a tablet PC, a digital camera, a camcorder, a laptop computer, a tablet PC, a desktop, an electronic book terminal, a digital broadcast terminal, a PDA (Personal Digital Assistants) Portable multimedia players), navigation, MP3 players, wearable devices, and the like. In particular, the embodiments can be easily implemented in a display device having a large display such as a TV, but the present invention is not limited thereto.

Also, the video display device 100 may be a fixed or mobile type, and may be a digital broadcasting receiver capable of receiving digital broadcasting. Also, the image display apparatus 100 may be implemented not only as a flat display device but also as a curved display device having a curvature screen or a flexible display device capable of adjusting a curvature. The output resolution of the video display device 100 may include, for example, a clearer resolution than HD (High Definition), Full HD, Ultra HD, or Ultra HD.

In the present embodiment, the term "user" means a person who controls the function or operation of the image display apparatus 100 using a control device, and may include a viewer, an administrator, or a installer.

The image display apparatus 100 according to one embodiment can communicate with the server 300 through a wired / wireless network. The image display apparatus 100 may transmit the local information to the server 300 and request the integrated frequency information according to the local information.

The integrated frequency band information according to an exemplary embodiment may be generated based on frequency band information corresponding to channels receivable in each of a plurality of video display devices located in the same area as the video display device 100, . For example, the server 300 may receive, from a plurality of video display devices, frequency band information corresponding to channels receivable by each of the plurality of video display devices.

In FIG. 1, for convenience of description, it is assumed that a plurality of video display devices include a first video display device 51, a second video display device 52, and a third video display device 53 . In addition, the plurality of video display devices may include the video display device 100 as well.

For convenience of explanation, the entire frequency band 10 set in the area where the plurality of video display devices 51, 52, 53, and 100 are located includes the frequency band corresponding to each of the channels 1 to 12 .

The server 300 receives information (first frequency band information) about the first frequency band 21 corresponding to the channels receivable in the first video display device 51 from the first video display device 51 . At this time, the first frequency band 21 may include a frequency band corresponding to a channel that can be actually received by the first video display device 51 among the entire frequency bands. For example, the channels that can be received by the first video display device 51 may be channel 4, channel 7, channel 8, and channel 11. The first frequency band 21 may be channel 4, channel 7, channel 8 And a frequency band corresponding to the channel 11 (in the first frequency band 21 shown in Fig. 1, the shaded area indicates the frequency band corresponding to the actually receivable channel).

The server 300 also receives information (second frequency band information) about the second frequency band 22 corresponding to the channels receivable from the second video display device 52 from the second video display device 52 . For example, the second image display device 52 may receive channels 1, 3, 7, and 12, and the second frequency band 22 may include channel 1, channel 3, channel 7, And may include a frequency band corresponding to channel 12.

 The server 300 also receives information (third frequency band information) about the third frequency band 23 corresponding to the channels receivable in the third video display device 53 from the third video display device 53 . For example, the channels that can be received by the third video display device 53 may be channel 1, channel 7, and channel 9, and the third frequency band 23 may be a frequency that corresponds to channel 1, channel 7, Band.

The server 300 according to an exemplary embodiment integrates the first frequency band information, the second frequency band information, and the third frequency band information into the integrated frequency band 40 corresponding to the region where the plurality of video display devices are located (Unified frequency band information) can be generated. For example, the integrated frequency band 40 may include a frequency band 40 corresponding to channel 1, channel 3, channel 4, channel 7 through channel 9, channel 11, and channel 12. However, the present invention is not limited thereto.

The server 300 may store the integrated frequency band information and may transmit the integrated frequency information corresponding to the local information of the image display apparatus 100 to the image display apparatus 100. [

The image display apparatus 100 according to one embodiment can transmit local information in which the image display apparatus 100 is located to a server. At this time, the image display apparatus 100 can determine an area where the image display apparatus 100 is located based on the IP address set in the image display apparatus 100. [ Alternatively, the video display apparatus 100 may receive a user input (e.g., a country corresponding to an area where the video display apparatus is located), and may display the area where the video display apparatus 100 is located Can be determined.

The image display apparatus 100 according to one embodiment can perform automatic channel search based on the integrated frequency band information received from the server 300. [ For example, the image display apparatus 100 can perform a channel search only in the integrated frequency band 40 included in the integrated frequency band information of the entire frequency band 10 set in the region where the image display apparatus 100 is located have.

Also, the image display apparatus 100 can perform channel search in the entire frequency band 10 set in the region where the image display apparatus 100 is located.

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

Referring to FIG. 2, the image display apparatus 100 may include a communication unit 110, a processor 120, a memory 150, a tuner unit 140, and a display unit 130.

The communication unit 110 may transmit and receive data or signals to / from an external device or a server under the control of the processor 120. [ The communication unit 110 may include a wireless LAN (for example, Wi-Fi), Bluetooth, wired Ethernet, IR, BLE bluetooth low energy, ultrasound, zigbee, HDMI, and HDMI-CEC.

The communication unit 110 according to an embodiment may transmit the local information of the image display apparatus 100 to the server 300 and request the integrated frequency band information by the control of the processor 120. [ Accordingly, the communication unit 110 can receive the integrated frequency band information corresponding to the area where the video display device 100 is located, from the server 300. [

The tuner unit 140 amplifies, broadcasts, and resonates broadcast signals received by wire or wireless, and transmits only a frequency of a channel to be received by the image display apparatus 100 among many radio wave components You can select by tuning. The broadcast signal includes audio, video and additional information (for example, EPG (Electronic Program Guide)).

The tuner unit 140 receives a channel number (for example, a channel number, a channel number, and a channel number) in accordance with a user input (e.g., a control signal received from a control apparatus such as a channel number input, an up- For example, a cable broadcast 506).

The tuner unit 140 can receive broadcast signals from various sources such as terrestrial broadcasting, cable broadcasting, satellite broadcasting, Internet broadcasting, and the like. The tuner unit 140 may receive a broadcast signal from a source such as an analog broadcast or a digital broadcast. The broadcast signal received through the tuner unit 140 is decoded (for example, audio decoding, video decoding, or side information decoding) and separated into audio, video and / or additional information. The separated audio, video and / or additional information may be stored in the image display device 100 under the control of the processor 120. [

The tuner unit 140 according to an exemplary embodiment of the present invention can search for receivable channels in a frequency band included in the integrated frequency band information corresponding to an area where the video display device is located under the control of the processor 120. [

The processor 120 according to one embodiment may execute one or more programs stored in the memory 130. [ The processor 120 may include single core, dual core, triple core, quad core, and cores thereof. In addition, the processor 120 may include a plurality of processors. For example, the processor 120 may be implemented as a main processor (not shown) and a sub processor (not shown) operating in a sleep mode.

The memory 130 according to one embodiment may store various data, programs, or applications for driving and controlling the image display apparatus 100. [ The program stored in the memory 130 may include one or more instructions. Programs (one or more instructions) or applications stored in the memory 130 may be executed by the processor 120.

The processor 120 according to an exemplary embodiment may control the tuner 140 to search for a channel capable of receiving broadcast signals among the channels included in the integrated frequency band when searching for a channel in the fast search mode. The processor 120 also includes a tuner 140 for searching for a channel capable of receiving a broadcast signal among channels included in the entire frequency band set in an area where the video display device 100 is located, Can be controlled.

The processor 120 according to an exemplary embodiment may control to search for a channel in the normal scan mode when the region determined based on the IP address set in the video display device 100 and the region determined based on the user input are different.

When searching for a frequency band corresponding to the cable broadcasting signal, the processor 120 searches for a frequency band corresponding to the terrestrial broadcast signal, can do. If the number of receivable channels among the channels included in the frequency band corresponding to the cable broadcasting signal is equal to or greater than a predetermined number, the processor 120 controls to skip the search for the frequency band corresponding to the terrestrial broadcast signal .

In addition, when the channel search is terminated, the processor 120 may generate channel information for channels capable of receiving a broadcast signal and display the generated channel information on the display unit 130. [ In addition, when the channel search is terminated, the processor 120 may generate a channel map including a channel capable of receiving a broadcast signal, and control to store the generated channel map. The processor 120 may control the communication unit 110 to transmit information on a frequency band corresponding to a channel that can be received by the video display device 100 to the server 300. [

The display unit 130 converts a video signal, a data signal, an OSD signal, a control signal, and the like processed by the processor 120 to generate a driving signal. The display unit 130 may be a PDP, an LCD, an OLED, a flexible display, or a 3D display. Also, the display unit 130 may be configured as a touch screen and used as an input device in addition to the output device.

The display unit 130 according to an exemplary embodiment may display a channel search setting screen for selecting either the quick search mode or the general search mode. Also, the display unit 130 may display a channel search result.

3 is a block diagram showing a configuration of a video display device according to another embodiment. The video display device 200 of FIG. 3 may be an embodiment of the video display device 100 of FIG.

3, the image display apparatus 200 includes a control unit 210, a display unit 220, a communication unit 250, a sensing unit 230, a video processing unit 280, an audio processing unit 215, An audio output unit 225, a power supply unit 260, a tuner unit 240, a communication unit 250, an input / output unit 270, and a storage unit 290.

The communication unit 110 of FIG. 2 corresponds to the communication unit 250 of FIG. 3, the tuner unit 140 of FIG. 2 corresponds to the tuner unit 240 of FIG. 3, the processor 120 of FIG. 2 corresponds to the control unit 210 of FIG. The memory 150 of FIG. 2 may correspond to the storage unit 290 of FIG. 3, and the display unit 130 of FIG. 2 may correspond to the display unit 220 of FIG. 3, respectively. The same contents as those described in FIG. 2 will be omitted from FIG.

The video processing unit 280 performs processing on the video data received by the video display device 200. [ The video processing unit 280 may perform various image processing such as decoding, scaling, noise filtering, frame rate conversion, resolution conversion, and the like on the video data.

The display unit 220 displays a video included in the broadcast signal received through the tuner unit 240 on the screen under the control of the controller 210. [ The display unit 220 may display content (e.g., moving image) input through the communication unit 250 or the input / output unit 270. The display unit 220 may output an image stored in the storage unit 290 under the control of the controller 210. [ In addition, the display unit 220 may include a voice UI (including a voice command word guide) for performing a voice recognition task corresponding to voice recognition, or a voice recognition unit for performing a motion recognition task corresponding to motion recognition And may display a motion UI (e.g., including a user motion guide for motion recognition).

The audio processing unit 215 performs processing on the audio data. In the audio processing unit 215, various processes such as decoding and amplification of audio data, noise filtering, and the like may be performed. Meanwhile, the audio processing unit 215 may include a plurality of audio processing modules for processing audio corresponding to a plurality of contents.

The audio output unit 225 outputs the audio included in the broadcast signal received through the tuner unit 240 under the control of the control unit 280. The audio output unit 225 may output audio (e.g., voice, sound) input through the communication unit 250 or the input / output unit 270. [ The audio output unit 225 may output the audio stored in the storage unit 290 under the control of the control unit 210. The audio output unit 225 may include at least one of a speaker 226, a headphone output terminal 227, or a Sony / Philips Digital Interface (S / PDIF) A speaker 226, a headphone output terminal 227, and an S / PDIF output terminal 228.

The power supply unit 260 supplies power from the external power source to the internal components of the video display device 200 under the control of the controller 210. [ In addition, the power supply unit 260 can supply power to the internal components from one or more batteries (not shown) located inside the video display device 200 under the control of the controller 210. [

The tuner section 240 of the image display apparatus 200 may have one or a plurality of tuner sections 240. The tuner unit 240 may be implemented as an all-in-one apparatus with the image display apparatus 200 or as a separate apparatus having a tuner unit electrically connected to the image display apparatus 200.

The communication unit 250 may connect the video display device 200 with an external device (e.g., a peripheral device) under the control of the control unit 210. [ The control unit 210 can transmit / receive content to / from an external device connected through the communication unit 250, download an application from an external device, or browse the web. The communication unit 250 may include one of a wireless LAN 251, a Bluetooth 252, and a wired Ethernet (Ethernet) 253 in accordance with the performance and structure of the video display device 200. The communication unit 250 may include a combination of a wireless LAN 251, a Bluetooth 252, and a wired Ethernet (Ethernet) 253. The communication unit 250 can receive the control signal of the external control device under the control of the control unit 210. [ The control signal may be implemented as a Bluetooth type, an RF signal type, or a WiFi type.

The communication unit 250 may further include a near field communication (for example, near field communication (NFC), bluetooth low energy (not shown), and the like) in addition to Bluetooth.

The sensing unit 230 senses the user's voice, the user's image, or the user's interaction.

The microphone 231 receives the utterance voice of the user. The microphone 231 converts the received voice into an electrical signal and outputs the electrical signal to the control unit 210. The user voice may include, for example, a voice corresponding to the menu or function of the video display device 200. [ The microphone 431 may be integrated with the image display device 200 or separately. The separated microphone 231 may be electrically connected to the image display apparatus 200 through the communication unit 250 or the input / output unit 270.

It will be readily understood by those skilled in the art that the microphone 231 may be omitted depending on the performance and structure of the video display device 200. [

The camera unit 232 receives an image (e.g., a continuous frame) corresponding to the motion of the user including the gesture in the camera recognition range. The user motion may include, for example, a user's body part, such as a user's face, a facial expression, a hand, a fist, a finger, or a motion of a part of a user. The camera unit 232 converts the received image into an electric signal and outputs the converted electric signal to the controller 210 under the control of the controller 210.

The control unit 210 may select a menu displayed on the video display device 200 or perform control corresponding to the motion recognition result using the recognition result of the received motion. For example, channel adjustment, volume adjustment, indicator movement, and cursor movement.

The camera section 232 may be composed of a lens (not shown) and an image sensor (not shown). The camera section 232 may support optical zoom or digital zoom using a plurality of lenses and image processing. The recognition range of the camera unit 232 can be variously set according to the angle of the camera and the surrounding environment conditions. When the camera unit 232 is composed of a plurality of cameras, it is possible to receive a three-dimensional still image or three-dimensional motion using a plurality of cameras.

The camera unit 232 may be integrated with the image display device 200 or separately. A separate device (not shown) including the separated camera unit 232 may be electrically connected to the image display device 200 through the communication unit 250 or the input / output unit 270.

It will be easily understood by those skilled in the art that the camera unit 232 may be omitted depending on the performance and structure of the image display apparatus 200.

The light receiving unit 233 receives an optical signal (including a control signal) received from an external control device through an optical window (not shown) of the bezel of the display unit 120 or the like. The light receiving unit 233 can receive an optical signal corresponding to a user input (e.g., touch, pressed, touch gesture, voice, or motion) from the control apparatus. The control signal can be extracted from the received optical signal under the control of the control unit 210. [

The input / output unit 270 receives the video (e.g., video, etc.), audio (e.g., audio, music, etc.), and additional information (e.g., video) from the outside of the video display device 200 under the control of the controller 210 For example, an EPG, etc.). The input / output unit 270 includes one of a high-definition multimedia interface port 271, a component jack 272, a PC port 273, and a USB port 274 . ≪ / RTI > Input / output portion 270 may include a combination of HDMI port 271, component jack 272, PC port 273, and USB port 274.

It will be readily understood by those skilled in the art that the configuration and operation of the input / output unit 270 can be variously implemented in accordance with the embodiments of the present invention.

The controller 210 controls the overall operation of the image display apparatus 200 and the signal flow between the internal components of the image display apparatus 200 and processes data. The control unit 210 can execute an OS (Operation System) and various applications stored in the storage unit 290 when the user inputs or pre-set conditions are satisfied.

The control unit 210 stores signals or data input from the outside of the image display apparatus 200 or a RAM (Random Access Memory) 281 used as a storage area corresponding to various jobs performed in the image display apparatus 200, (ROM) 282 and a processor (Processor) 283 in which a control program for controlling the display device 200 is stored.

The processor 283 may include a graphic processor (not shown) for graphics processing corresponding to the video. The processor 283 may be implemented as a SoC (System On Chip) incorporating a core (not shown) and a GPU (not shown).

The graphic processing unit 284 generates a screen including various objects such as an icon, an image, and text using an operation unit (not shown) and a rendering unit (not shown). The operation unit calculates an attribute value such as a coordinate value, a shape, a size, and a color to be displayed by each of the objects according to the layout of the screen using the user input sensed through the sensing unit 230. The rendering unit generates screens of various layouts including the objects based on the attribute values calculated by the operation unit. The screen generated by the rendering unit is displayed in the display area of the display unit 220.

The first through n interfaces 285-1 through 285-n are connected to the various components described above. One of the interfaces may be a network interface connected to an external device via a network.

The RAM 281, the ROM 282, the processor 283, the graphics processing unit 284 and the first through n interfaces 285-1 through 285-n may be interconnected via an internal bus 286 .

In this embodiment, the term "control unit of the image display apparatus" includes a processor 283, a ROM 282, and a RAM 281. [

The storage unit 290 may store various data, programs or applications for driving and controlling the video display device 200 under the control of the control unit 210. [ The storage unit 290 includes a video processing unit 280, a display unit 220, an audio processing unit 215, an audio output unit 225, a power supply unit 230, a tuner unit 240, a communication unit 250, 230, and input / output signals or data corresponding to the driving of the input / output unit 270. The storage unit 290 includes a control program for controlling the video display device 200 and the control unit, a graphical user interface (GUI) related to an application or an application initially provided or downloaded from a manufacturer, an object Image text, icons, buttons, etc.), user information, documents, databases or related data.

In one embodiment, the term "storage unit" includes a storage unit 290, a ROM 282, a RAM 281 or a memory card (e.g., micro SD card, USB Memory, not shown). In addition, the storage unit 290 may include a nonvolatile memory, a volatile memory, a hard disk drive (HDD), or a solid state drive (SSD).

The storage unit 290 includes a broadcast receiving module, a channel control module, a volume control module, a communication control module, a voice recognition module, a motion recognition module, a light receiving module, a display control module, an audio control module, A power control module, an external device power control module, a voice database (DB), or a motion database (DB), which are connected in a wireless manner (e.g., Bluetooth). Unshown modules and a database of the storage unit 290 are used to control a function of controlling reception of broadcasting, a channel control function, a volume control function, a communication control function, a voice recognition function, a motion recognition function, A control function, a display control function, an audio control function, an external input control function, a power control function, or a power control function of an external device connected by wireless (for example, Bluetooth). The control unit 210 can perform respective functions using the software stored in the storage unit 290. [

The video display device 200 having the display unit 220 may be electrically connected to a separate external device having a tuner unit. For example, the image display apparatus 200 may be implemented as an analog TV, a digital TV, a 3D-TV, a smart TV, an LED TV, an OLED TV, a plasma TV, a monitor, And will be readily understood by those of ordinary skill in the art.

The image display apparatus 200 may include a sensor (for example, an illuminance sensor, a temperature sensor, or the like, not shown) for detecting the internal or external state of the image display apparatus 200.

Meanwhile, the block diagrams of the image display apparatuses 100 and 200 shown in FIGS. 2 and 3 are block diagrams for one embodiment. Each component of the block diagram can be integrated, added, or omitted according to the specifications of the video display devices 100 and 200 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 embodiments, and the specific operation or apparatus does not limit the scope of the present invention.

4 is a block diagram showing a configuration of a server according to an embodiment.

Referring to FIG. 4, a server 300 according to an embodiment may include a communication unit 310, a processor 320, and a memory 330.

The communication unit 310 may perform communication with an external device under the control of the processor 320. [ For example, the communication unit 310 may transmit and receive data or signals to and from a plurality of video display devices 51, 52, 53, and 100 according to an exemplary embodiment. The communication unit 310 receives the frequency band information from the plurality of video display devices 51, 52, 53 and 100 under the control of the processor 320 and controls the plurality of video display devices 51, 52, 53, 100 To transmit the integrated frequency band information.

The server 300 may transmit the integrated frequency band information to the image display apparatus 100 when the image display apparatus 100 is requested. Alternatively, when the integrated frequency band information is updated, the server 300 may transmit the updated integrated frequency band information to the video display device 100. [ However, the present invention is not limited thereto.

In addition, when a new channel not included in the integrated frequency band information pre-stored in the server 300 is added, the server 300 may update the integrated frequency band information to include a new channel. In addition, when a new channel not included in the pre-stored integrated frequency band information is added, the server 300 can request a channel scan to the video display device 100. [ In addition, the server 300 may transmit the frequency band information corresponding to the new channel to the image display apparatus 100. [

The processor 320 may control the server 300 as a whole. The processor 320 in accordance with one embodiment may execute one or more programs stored in the memory 330. [ Processor 320 may include single core, dual core, triple core, quad core, and cores thereof. In addition, the processor 320 may include a plurality of processors.

The memory 330, according to one embodiment, may store various data, programs, or applications for driving and controlling the server 300. The program stored in the memory 330 may include one or more instructions. Programs (one or more instructions) or applications stored in the memory 330 may be executed by the processor 320.

The processor 320 may integrate frequency band information received from a plurality of video display devices located in the same area to generate integrated frequency band information. For example, the first frequency band information received from the first video display device 51 located in the first area includes the frequency band corresponding to the channel 4, the channel 7, the channel 8, and the channel 11, The second frequency band information received from the second video display device 52 located in the first region includes the frequency band corresponding to the channel 1, the channel 3, the channel 7, and the channel 12, and the third video display device 53 The processor 320 determines that the third frequency band information received from the first frequency band information includes the frequency band corresponding to the first channel band, the third channel band, , And a frequency band corresponding to the channel 12, for example. The processor 320 also integrates the frequency band information received from the plurality of video display devices located in the second area and the second area in the same manner to generate the integrated frequency band information corresponding to the second area . However, the present invention is not limited thereto.

Information on the generated integrated frequency band may be stored in the memory 330, matching the local information.

FIG. 5 is a diagram illustrating an example in which a channel search setting screen is displayed on an image display apparatus according to an embodiment.

5, an image display apparatus 100 according to an exemplary embodiment may receive a control signal from a controller 400 and may control the image display apparatus 100 based on the received control signal.

The controller 400 according to one embodiment can transmit and receive signals to and from the image display apparatus 100 according to an IR or RF communication standard. However, the present invention is not limited thereto. In addition, the control device 400 may include a user input unit including a keypad, a button, a touch pad, or a touch screen. The user can input a command related to the video display device 100 to the control device 400 by operating the user input part of the control device 400. [ For example, when the control device 400 includes a hard key button, the user can input a command related to the image display device 100 to the control device 400 through the push operation of the hard key button. Alternatively, when the control device 400 includes a touch screen, the user may touch a soft key of the touch screen to input a command related to the image display device 100 to the control device 200. [

The control signal corresponding to the user input may be transmitted to the video display device 100. [

For example, the user inputs a command for displaying a setting screen (hereinafter referred to as "channel search setting screen") related to automatic channel search on the video display device 100 using the user input unit of the control device 400 Can be input. The control device 400 can transmit a control signal corresponding to the user command to the video display device 100 and the video display device 100 can display the channel search setting screen corresponding to the user input. The channel search setting screen may include an item 510 for setting a channel search mode, but the present invention is not limited thereto.

The image display apparatus 100 can detect a user input for selecting the item 510 included in the channel search setting screen by using the control device 400. [ When the item 510 is selected, the lower items 520 and 525 including the quick scan mode Quick and the normal scan mode Full are displayed as shown in FIG. In this case, the fast scan mode refers to searching for a channel within the integrated frequency band received from the server 300. In the general scan mode, within the entire frequency band set in the region where the video display device 100 is located, Which means searching for a channel.

The channel search mode is set to one of the quick scan mode and the normal scan mode. When the user input for selecting the scan button 530 is detected, the video display device 100 can automatically search for the channel.

6 and 7, a method of searching for a channel in the fast scan mode will be described with reference to FIGS. 8 and 9, and the video display device 100 will be described with reference to FIGS. A method of searching for a channel will be described.

FIGS. 6 and 7 are diagrams for explaining a method of searching for a channel in the fast scan mode by the image display apparatus according to an embodiment.

When the channel search mode is set to the fast scan mode, the video display device 100 can search for channels using the integrated frequency band information received from the server 300. [

For example, as shown in FIG. 6, the frequency band 10 set in an area where the video display device 100 is located may include a frequency band corresponding to the channel 1 to the channel 12. On the other hand, the integrated frequency band 40 received from the server 300 may include frequency bands corresponding to channel 1, channel 3, channel 4, channel 7 to channel 9, channel 11, and channel 12, respectively.

When the image display apparatus 100 searches for a channel in the fast scan mode, it can search only the channels included in the integrated frequency band rather than the entire frequency band. For example, the image display apparatus 100 tunes the reception frequency to each of the frequencies corresponding to the channel 1, the channel 3, the channel 4, the channel 7 to the channel 9, the channel 11, and the channel 12, You can search.

Meanwhile, the integrated frequency band may include a frequency band corresponding to the over-the-air broadcast signal and a frequency band corresponding to the cable broadcast signal. The video display apparatus 100 according to an exemplary embodiment searches for a frequency band corresponding to a cable broadcasting signal and searches for a frequency band corresponding to a sky wave broadcasting signal when searching for a frequency band corresponding to a cable broadcasting signal is completed . However, the present invention is not limited thereto.

If the number of receivable channels is equal to or greater than a predetermined number as a result of searching for a frequency band corresponding to the cable broadcasting signal, the video display device 100 may skip searching for the frequency band corresponding to the over-the-air broadcasting signal.

In the case of searching a channel in the fast scan mode, the image display apparatus 100 displays a message (610, for example, Quick scanning for channels) indicating that the scan is being performed in the fast scan mode, a graph 620 indicating the channel search progress, And a list 630 of the number of searched channels. Also, the video display device 100 may display a stop button 640 for stopping the channel search.

On the other hand, when the channel search is completed, the image display apparatus 100 can display a message that the channel search is completed and a list 710 of the number of the searched channels, as shown in FIG. In addition, the image display apparatus 100 can display the normal scan mode button 720. [ At this time, if a user input for selecting the normal scan mode button 720 is detected, the image display apparatus 100 can perform a channel search in the entire frequency band 10.

Also, the image display apparatus 100 can display the re-scan button 730. [ When the user input for selecting the re-scan button 730 is detected, the image display apparatus 100 can perform the channel search again in the integrated frequency band 40 in the fast scan mode.

Also, the video display device 100 can display the end button 740. [ When the user input for selecting the end button 740 is detected, the video display device 100 may terminate the channel search and generate a channel map including the searched channel. However, the present invention is not limited thereto.

8 and 9 are views for explaining a method of searching for a channel in the general scan mode by the image display apparatus according to an embodiment.

When the channel search mode is set to the normal scan mode, the video display device 100 can search for channels using the entire frequency band information.

For example, as shown in FIG. 8, the entire frequency band 10 set in an area where the image display device 100 is located may include a frequency band corresponding to the channel 1 to the channel 12.

When the image display apparatus 100 searches for a channel in the normal scan mode, the image display apparatus 100 can search all of the channels included in the entire frequency band 10. For example, the image display apparatus 100 can tune the reception frequency to a frequency corresponding to each channel from channel 1 to channel 12, and search whether a broadcast signal is received at the tuned frequency.

Meanwhile, the entire frequency band may include a frequency band corresponding to the over-the-air broadcast signal and a frequency band corresponding to the cable broadcast signal. The video display apparatus 100 according to an exemplary embodiment searches for a frequency band corresponding to a cable broadcasting signal and searches for a frequency band corresponding to a sky wave broadcasting signal when searching for a frequency band corresponding to a cable broadcasting signal is completed . However, the present invention is not limited thereto.

If the number of receivable channels is equal to or greater than a predetermined number as a result of searching for a frequency band corresponding to the cable broadcasting signal, the video display device 100 may skip searching for the frequency band corresponding to the over-the-air broadcasting signal.

When a channel is searched in the normal scan mode, the image display apparatus 100 displays a message (810, for example, Scanning for channels) indicating that the scan is being performed in the normal scan mode, a graph 820 indicating a channel search progress, And a list 830 of the number of channels. Also, the image display apparatus 100 may display a stop button 840 for stopping the channel search.

On the other hand, when the channel search is completed in the entire frequency band 10, the image display apparatus 100 displays a message that the channel search is completed and a list 910 of the number of the searched channels, as shown in FIG. 9 have.

Also, the image display apparatus 100 can display the re-scan button 920. [ When the user input for selecting the re-scan button 920 is detected, the image display apparatus 100 can perform the channel search again in the entire frequency band 10 in the normal scan mode.

Also, the video display device 100 can display the end button 930. [ When a user input for selecting the end button 930 is detected, the image display apparatus 100 may terminate the channel search and generate a channel map including the searched channel. However, the present invention is not limited thereto.

Also, the video display device 100 can display the transmission button 940. [ When the user input for selecting the transmission button 940 is detected, the video display device 100 can transmit information on the frequency band corresponding to the searched channel to the server 300. [

Alternatively, when the image display apparatus 100 is connected to the server 300 through the network, the image display apparatus 100 may automatically transmit the frequency band information corresponding to the searched channel to the server 300. Alternatively, when the frequency band information corresponding to the searched channel is different from the integrated frequency band information received from the server 300, the image display apparatus 100 may automatically transmit the frequency band information corresponding to the searched channel to the server 300 . Alternatively, the video display apparatus 100 may display the transmission button 940 only when the frequency band information corresponding to the searched channel is different from the integrated frequency band information received from the server 300. [ However, the present invention is not limited thereto.

On the other hand, when the server 300 receives information on the frequency band 950 from the image display apparatus 100, the server 300 can update the previously stored integrated frequency band information based on the received frequency band information. For example, the pre-stored integrated frequency band information includes a frequency band 40 corresponding to channel 1, channel 3, channel 4, channel 7 to channel 9, channel 11, and channel 12, The frequency band information received from the image display apparatus 100 is transmitted from the channel 1 to the channel 4, the channel 7 to the channel 9, And a frequency band 950 corresponding to channel 11 and channel 12.

The server 300 may update the integrated frequency band information by integrating the frequency band 40 included in the previously stored integrated frequency band information and the frequency band 950 included in the received frequency band information. Accordingly, the updated integrated frequency band information may include a frequency band 45 corresponding to channel 1 to channel 4, channel 7 to channel 9, channel 11, and channel 12. However, the present invention is not limited thereto.

Meanwhile, the video display device 100 according to an exemplary embodiment may determine an area where the video display device 100 is located, based on the IP address set in the video display device 100. Alternatively, the image display apparatus 100 may be configured to display the image display apparatus 100 on the basis of a user input (for example, a local information input for a country, a city, a city, a county, etc. corresponding to an area where the image display apparatus is located) You can decide where you are located.

When the area (first area) determined based on the IP address set in the video display device 100 is different from the area (second area) determined based on the user input, You can search channels in scan mode.

For example, the video display apparatus 100 may search for a channel using the entire frequency band information set in a region (second region) determined based on a user input, or a region (first region) determined based on an IP address, It is possible to search for a channel by using the entire frequency band information set in the frequency band information. Alternatively, the image display apparatus 100 may compare the entire frequency band information (the first full frequency band information) set in the first area and the entire frequency band information (the second whole frequency band information) set in the second area, The channel can be searched using the frequency band information having the frequency band. Alternatively, the image display apparatus 100 can search for a channel using frequency band information including the entire frequency band set in the first area and the entire frequency band set in the second area.

FIG. 10 is a diagram for explaining a method of operating a server and an image display device when a new channel is added to the server or when the integrated frequency band information is updated.

Referring to FIG. 10, a new channel may be added to the server 300 according to an exemplary embodiment. For example, when the frequency band 40 included in the integrated frequency band information stored in the server 300 includes channel 1, channel 3, channel 4, channel 7 to channel 9, channel 11, and channel 12, A new channel 131010 may be added to the new channel. At this time, the server 300 may update the integrated frequency band information to include the channel 131010.

In addition, when a new channel not included in the pre-stored integrated frequency band information is added, the server 300 can request a channel scan to the video display device 100. [ In addition, the server 300 may transmit the frequency band information corresponding to the new channel to the image display apparatus 100. [

Upon receiving the channel scan request from the server 300, the video display apparatus 100 can display a message 1020 indicating that a new channel has been added, and display the channel scan button 1030 and the end button 1040 .

When the user input for selecting the channel scan button 1030 is detected, the image display apparatus 100 can perform channel search using the frequency band information including the new channel. For example, the image display apparatus 100 can display a channel search setting screen as described with reference to FIG. 5, and can perform a channel search in a normal scan mode or a fast scan mode. When the channel search is performed in the normal scan mode, the image display apparatus 100 can perform channel search using the entire frequency band information including the frequency band corresponding to the new channel. When the channel search is performed in the fast scan mode, the image display apparatus 100 receives the updated integrated frequency band information (including the frequency band corresponding to the new channel), and uses the updated integrated frequency band information Channel search can be performed.

Alternatively, when the image display apparatus 100 receives the frequency band information corresponding to the new channel from the server 300, the image display apparatus 100 performs a background channel scan without a user input to add a new channel (for example, channel 13) .

11 is a flowchart illustrating an operation method of an image display apparatus according to an embodiment.

Referring to FIG. 11, the image display apparatus 100 according to an exemplary embodiment may receive the integrated frequency band information corresponding to an area where the image display apparatus 100 is located, from the server 300 (S1110).

The integrated frequency band information may be generated frequency information based on frequency band information corresponding to channels receivable in each of the plurality of video display devices located in the same area.

For example, the server 300 may transmit frequency band information corresponding to channels that can be received by each of the other video display devices 51, 52, and 53 located in the same area as the video display device according to one embodiment Integrated frequency band information can be generated and the generated integrated frequency band information can be stored.

The server 300 may transmit the integrated frequency band information to the image display apparatus 100 when the image display apparatus 100 is requested. Alternatively, when the integrated frequency band information is updated, the server 300 may transmit the updated integrated frequency band information to the video display device 100. [ However, the present invention is not limited thereto.

The image display apparatus 100 may search for channels that can be received by the image display apparatus 100 among the channels included in the integrated frequency band (S1120).

For example, the entire frequency band set in the area where the video display device 100 is located includes the frequency band corresponding to the channel 1 to the channel 12, and the integrated frequency band received from the server 300 includes the channel 1, the channel 3 Channel 4, channel 7 to channel 9, channel 11, and channel 12, the video display device 100 does not search all the channels 1 to 12, Channel 4, channel 7 to channel 9, channel 11 and channel 12 are receivable. The image display apparatus 100 can tune the reception frequency to each of the frequencies corresponding to the channel 1, the channel 3, the channel 4, the channel 7 to the channel 9, the channel 11, and the channel 12 and search whether the broadcast signal is received .

The image display apparatus 100 can display the searched result (S1130).

When the channel search is completed, the image display apparatus 100 can display a message that the channel search is completed and a list of the number of the searched channels. Also, when the channel search is terminated, the video display device 100 can generate a channel map including the searched channel. However, the present invention is not limited thereto.

The method of operating the image display device according to one embodiment may be implemented in the form of a program command that can be executed through various computer means and recorded in a computer readable medium. The computer-readable medium may include program instructions, data files, data structures, and the like, alone or in combination. The program instructions recorded on the medium may be those specially designed and configured for the present invention or may be available to those skilled in the art of computer software. Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media such as floppy disks; Magneto-optical media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. Examples of program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like.

While the present invention has been particularly shown and described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, .

Claims (20)

A video display device comprising:
A communication unit for receiving information on an integrated frequency band corresponding to an area where the video display device is located, from the server;
A display unit;
A processor;
Memory; And
And one or more programs stored in the memory and executed by the processor,
The one or more programs,
Instructions for searching a channel that can be received by the image display apparatus among the channels included in the integrated frequency band and displaying the search result on the display unit,
Wherein the integrated frequency band is a frequency band determined based on frequency bands capable of being received by other video display devices located in the same area as the video display device. The method according to claim 1,
The one or more programs,
Further comprising instructions for generating a channel map including the receivable channel when the search is terminated, and storing the channel map. The method according to claim 1,
The one or more programs,
Further comprising instructions for displaying a channel search setting screen for selecting either the quick search mode or the general search mode. The method of claim 3,
The one or more programs,
Further comprising instructions for searching a channel that can be received by the image display apparatus among the channels included in the integrated frequency band when a user input for selecting the quick search mode is detected. The method of claim 3,
The one or more programs,
Further comprising instructions for searching a channel that can be received by the image display apparatus among channels included in the entire frequency band set in the image display apparatus when a user input for selecting the general search mode is sensed. The method according to claim 1,
The one or more programs,
Further comprising instructions for transmitting information on a frequency band corresponding to a channel receivable in the video display device to the server. The method according to claim 1,
The one or more programs,
Further comprising instructions for transmitting information on a frequency band corresponding to a channel receivable in the video display device to the server when the integrated frequency band and the frequency band corresponding to the receivable channel do not match, Display device. The method according to claim 1,
Wherein the integrated frequency band includes a frequency band corresponding to a terrestrial broadcast signal and a frequency band corresponding to a cable broadcast signal,
The one or more programs,
Further comprising instructions for searching for a frequency band corresponding to the terrestrial broadcast signal when the search for the frequency band corresponding to the cable broadcast signal is completed. 9. The method of claim 8,
The one or more programs,
Further comprising instructions for skipping a search for a frequency band corresponding to the terrestrial broadcast signal if a search result of a frequency band corresponding to the cable broadcast signal indicates that the number of receivable channels is greater than or equal to a predetermined number. A method of operating a video display device,
Receiving information on an integrated frequency band corresponding to an area where the video display device is located from a server;
Searching for a channel that can be received by the image display apparatus among the channels included in the integrated frequency band; And
And displaying the search result,
Wherein the integrated frequency band is a frequency band determined based on frequency bands that can be received by other video display devices located in the same area as the video display device. 11. The method of claim 10,
The operating method comprises:
Generating a channel map including the receivable channel when the search is terminated; And
Further comprising the step of storing the channel map. 11. The method of claim 10,
The operating method comprises:
Displaying a channel search setting screen for selecting one of the quick search mode and the general search mode; And
Further comprising receiving a user input for selecting either the quick search mode or the general search mode. 13. The method of claim 12,
Wherein the step of searching for a channel that can be received by the image display apparatus among the channels included in the integrated frequency band comprises:
And searching for a channel that can be received by the image display apparatus among the channels included in the integrated frequency band when a user input for selecting the quick search mode is detected. 13. The method of claim 12,
The operating method comprises:
The method of claim 1, further comprising the step of: if a user input to select the general search mode is detected, searching for a channel that can be received by the video display device among channels included in the entire frequency band set in the video display device Way. 11. The method of claim 10,
The operating method comprises:
And transmitting information on a frequency band corresponding to a channel receivable in the image display device to the server. 16. The method of claim 15,
Wherein the step of transmitting information on a frequency band corresponding to a channel receivable by the video display device to the server comprises:
And transmitting information on a frequency band corresponding to a channel that can be received by the video display device to the server if the integrated frequency band and the frequency band corresponding to the receivable channel do not coincide with each other How it works. 11. The method of claim 10,
Wherein the integrated frequency band includes a frequency band corresponding to a terrestrial broadcast signal and a frequency band corresponding to a cable broadcast signal,
Wherein the step of searching for a channel that can be received by the image display apparatus among the channels included in the integrated frequency band comprises:
Searching for a channel that can be received by the image display apparatus among channels included in a frequency band corresponding to the cable broadcast signal; And
And searching for a channel that can be received by the image display apparatus among the channels included in the frequency band corresponding to the terrestrial broadcast signal when the channel search for the frequency band corresponding to the cable broadcast signal is completed, Method of operation of the device. 18. The method of claim 17,
Wherein the step of searching for a channel that can be received by the image display apparatus among the channels included in the integrated frequency band comprises:
Searching a receivable channel among channels included in a frequency band corresponding to the cable broadcasting signal; And
And determining whether to search for a frequency band corresponding to the terrestrial broadcast signal based on the number of receivable channels among channels included in the frequency band corresponding to the cable broadcast signal. A communication unit for receiving first frequency band information corresponding to channels receivable in a first video display device located in the same area and second frequency band information corresponding to channels receivable in a second video display device;
A processor;
Memory; And
And one or more programs stored in the memory and executed by the processor,
The one or more programs,
Generating integrated frequency band information corresponding to the same area based on the first frequency band information and the second frequency band information, storing the integrated frequency band information, And transmitting the integrated frequency band information to the base station. 20. The method of claim 19,
The one or more programs,
Further comprising instructions for updating the integrated frequency band information based on the third frequency band information when receiving third frequency band information corresponding to channels receivable from the third video display device.

Images