KR20110053624A - Display apparatus and channel browser offer method thereof - Google Patents

Abstract

PURPOSE: A display apparatus and a method for offering a channel browser for the same are provided to embody a channel browser function about an RF channel without adding an additional tuner. CONSTITUTION: A control unit receives a program which is offered through a second path. The control unit acquires the broadcasting program information obtained through the first path from the broadcasting program information obtained through the second path(S310). The control unit offers the channel browser about the programs offered through the first path using the broadcasting program information from the second path program(S370, S380).

Description

Display apparatus and channel browser offer method

The present invention relates to a display device, and more particularly, to a display device and a method for providing a channel browser thereof that can provide a channel browser using information provided by an IPTV.

The display device is a device having a function of displaying an image that a user can watch. In addition, the display apparatus may display a broadcast selected by a user on a display among broadcast signals transmitted from a broadcasting station. Currently, the trend is shifting from analog broadcasting to digital broadcasting.

Such digital broadcasts transmit digital video and audio signals, and are more resistant to external noise than analog broadcasts, and thus have low data loss, are advantageous for error correction, provide high resolution, and provide a clear picture. In addition, with the implementation of digital broadcasting, interactive services have become possible.

In addition to the trend of switching to digital broadcasting, broadcasting broadcasts are increasing in response to various needs of users. In order to recognize each increased broadcast in the current display device, each broadcast must be selected through channel switching, which causes a lot of time-consuming inconvenience.

Accordingly, recently, a channel browser including a channel list including information about a program that is broadcast through each channel is provided.

The channel browser displays a thumbnail image of a program being broadcast at the present time through each channel. Accordingly, the user checks the thumbnail image provided by the channel browser and broadcasts the information broadcasted through each channel at the present time. It can be easily understood.

The embodiment according to the present invention provides a display apparatus and a method for providing a channel browser thereof, which can easily provide a channel browser function with only one tuner.

In addition, according to an embodiment of the present invention, a display apparatus for allocating RF channel information to a data packet received through IPTV and, accordingly, providing a channel browser function for an RF channel using the received data packet; It provides his channel browser providing method.

Technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned above are clearly understood by those skilled in the art to which the embodiments proposed from the following description belong. Could be.

In accordance with another aspect of the present invention, a method of providing a channel browser of a display apparatus includes: receiving a program provided through a second path; Acquiring broadcast information of programs provided through a first path from a program received through the second path; And providing a channel browser for programs provided through the first path by using the broadcasting information obtained from the program of the second path.

In addition, the channel browser providing method of the display apparatus according to an embodiment of the present invention comprises the steps of requesting the broadcast information of the first program provided through the first path; Searching for a second program that is identical to a specific program for which the broadcasting information is requested among programs provided through a second path; Acquiring broadcast information of the first program using the searched second program; And providing a channel browser of the first program based on the broadcasting information obtained by using the second program.

In addition, the display device according to an embodiment of the present invention includes a first receiving unit for receiving a program provided through a first transmission path; A second receiver configured to receive a program provided through a second transmission path; A channel browsing processor extracting a thumbnail image from a program received through the second receiver, and generating a channel browser based on the extracted thumbnail image; And analyzing the programs received through the first and second transmission paths, identifying the same program, and thereby generating a channel browser of the program provided through the first path based on the program provided through the second transmission path. It characterized in that it comprises a control unit for controlling.

According to an embodiment of the present invention, a channel browser function for an RF channel can be simply implemented without adding a separate tuner by using a display device to which IPTV is currently being rapidly developed.

The proposed embodiment will be described.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. However, the spirit of the present invention is not limited to the embodiments presented, and other inventions which are further deteriorated by addition, change, deletion, etc. of other components, or other embodiments included within the scope of the present invention can be easily made. I can suggest.

The term used in the present invention was selected as a general term widely used as possible, but in some cases, the term is arbitrarily selected by the applicant, in which case the meaning is described in detail in the description of the invention, the name of a simple term It should be clear that the present invention is to be understood as a meaning of terms.

In other words, in the following description, the word 'comprising' does not exclude the presence of other elements or steps than those listed.

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

As shown in FIG. 1, the display system is composed of a content provider 20, a service provider 30, a network operator 40, and a network TV 10.

Here, the network TV 10 (corresponding to the display apparatus described below) refers to a TV system equipped with an Internet communication module and capable of receiving a broadcast program or other content through an existing Internet network. The network TV according to the embodiments of the present invention may include a TV receiver or a network capable of receiving a broadcast program or content through the Internet such as an IPTV, a broadband TV, a web TV, and the like.

The network operator 40 provides the network TV 10 with the base software necessary for the contents provided by the content provider 20 to operate normally in the network TV 10. In addition, the content provider 20 may be provided with hardware information of the network TV 10 necessary for the content to be normally executed in the network TV 10.

For example, the network operator 40 provides a main screen configured when the contents provided by the content providers are displayed on the network TV 10 and provides a user interface for the user to select the content. The network operator 40 may be a server operated by the manufacturer of the network TV 10.

The content provider 20 generates the content and configures the content in a format that can be reproduced in the network TV 10, and provides the contents at the request of the network TV 10. The content can be any data that can be serviced over a network.

The network TV 10 may be equipped with dedicated firmware for reproducing, searching for, displaying a list, and the like for each content provider 20. The firmware may be mounted on the network TV 10 during the manufacturing process of the network TV 10 or may be downloaded and installed by the user through the network during use.

The firmware of the network TV 10 may be referred to as a program for playing or executing content provided by the content provider 20. The firmware may vary depending on the type of content provided by the content provider 20. For example, when the content provider 20 is a VOD provider, the firmware may be a VOD playback program. When the content provider 20 is an AOD or MOD service provider, the content provider 20 may be an AOD or MOD playback program. If the content provider 20 is a video telephone operator, it may be a video telephone program.

The service provider 30 provides network communication between the network operator 40, the content provider 20, and the network TV 10. The network may include any wired or wireless Internet network using the Internet protocol. In particular, the service provider 30 transmits the content provided by the content provider 20 to the network TV 10, performs maintenance management of the transmission network so that the user can be stably received the content, and the content provider ( 20) provides the infrastructure for network transmission.

The network TV 10 receives and plays or executes content through the service provider 30 in response to a user's command. According to an embodiment, the network TV 10 may be replaced with a device equipped with a network module, such as a network set-top box or a network telephone.

In more detail, the content provider 20 may be a provider of various types of content to be provided to the network TV 10. The content provider 20 may include a TV station, a radio station, a VOD operator, an AOD operator, a game operator, a video telephone service provider, and the like.

The TV station refers to a conventional terrestrial or cable broadcasting station. The broadcasting station may create and store a program that users can watch and convert it digitally.

Radio stations provide audio content and may have video channels, but most operate without video channels.

VOD operators and AOD operators have different characteristics from TV stations and radio stations. In other words, in the case of VOD or AOD, it saves the broadcasting program, movie, and music that I want and then plays it for viewing. For example, if there is a broadcast program that was not properly viewed because there is no time to watch the current broadcast program, it is possible to access a site that provides such a broadcast service and download the file or play it immediately.

AOD providers likewise offer the ability to listen to audio programs in real time.

The Music On Demand (MOD) service allows me to download and listen to the music I want. This seems to be similar to AOD, but the target of the service is likely to be record labels or record distributors extending existing Web services.

In addition, the content provider 20 may provide various services to the network TV through the Internet, such as a packet filter (PF) server, an EPG service provider, an electronic content guide (ECG) service provider, and a portal server operator. It can be any server operator.

The PF server is serviced by a company that manages all broadcasting information and location information provided by the content provider. This service mainly contains broadcasting time or location information necessary for broadcasting and information that users can access.

The EPG service provides EPG information so that a user can search a broadcast program by time zone and grasp by channel.

The ECG service provides the user with the information of the content that the content provider has, the location and access authority of the access server. In other words, it is an electronic program guide that provides detailed information on the content and the function of easily connecting to the server having the content.

The portal server is a web service provided by each broadcasting station. When the portal server receives a request from the user terminal, the portal server connects to the broadcasting server or the web server of the service provider. The role of the portal server is to make it possible to retrieve a list of programs provided by each broadcasting station or a content provider providing a content service.

The service provider 30 transmits data and commands of the network operator 40, the content provider 20, and the network TV 10. The service provider 30 may be an internet service provider. According to an embodiment, the service providers 30 may provide the above Internet services by using the existing cable network, in which case it is necessary to change the transmission network equipment.

That is, the service provider 30 should be configured with network equipment capable of real-time data transmission, and can configure the network in consideration of the bandwidth of the network TV 10 side. These devices can reduce bandwidth by processing large amounts of multimedia data using multicast service, which is the basic network service of network TV.

If the bandwidth is not secured, the service provider 30 transcodes the broadcast data transmitted from the optical network configuration or the content provider 20 in an effort to secure the bandwidth, such as MPEG-4 or MPEG-7. It can also be transformed into a form.

The service provider 30 may provide a network management system (NMS), a dynamic host control protocol (DHCP), and a contents delivery network (CDN) service.

As described above, the network TV 10 may be replaced by a network set-top box or a network telephone equipped with an Internet communication module. The network TV 10 may have a structure described with reference to FIG. 3.

The network TV 10 basically has a network interface capable of connecting to a network, receives an IP address or is already assigned an IP address, thereby receiving and processing a data packet coming from the network, and when the data packet is multimedia data. Can play on the screen.

The network TV 10 may operate to transmit the user's requirements in both directions while processing the multimedia data. In addition, the network TV 10 is preferably provided with buttons for the network TV on the remote control for controlling the network TV 10 so that the service can be used well.

2 is a diagram showing the configuration of a network TV, that is, a display device according to an embodiment of the present invention.

2, the display apparatus includes a tuner 110, a network interface unit 115, an external signal input unit 118, a demodulator 120, a channel browsing processor 130, a controller 140, and a storage 150. ), A sound output unit 160, a display unit 165, and an interface unit 170.

The tuner 110 selects an RF broadcast signal corresponding to a channel selected by a user from a radio frequency (RF) broadcast signal received through an antenna, and converts the selected RF broadcast signal into an intermediate frequency signal or a baseband video / audio signal. do. For example, if the selected RF broadcast signal is a digital broadcast signal, it is converted into a digital IF signal DIF1, and if it is an analog broadcast signal, it is converted into an analog baseband video / audio signal CVBS 1 / SIF. That is, the tuner 110 may be a hybrid tuner capable of processing digital broadcast signals and analog broadcast signals. The analog baseband video / audio signal CVBS 1 / SIF output from the tuner 110 may be directly input to the controller 140.

In addition, the tuner 110 may receive a single broadcast RF broadcast signal according to an ATSC (Advanced Television Systems Committee) scheme or a multiple broadcast RF broadcast signal according to a DVB (Digital Video Broadcasting) scheme. Do.

The tuner 110 converts the main RF broadcast signal selected by the user into an intermediate frequency signal or a baseband video / audio signal, and the second tuner 125 converts all the RF broadcast signals except for the main RF broadcast signal ( Sub-RF broadcast signal) or all RF broadcast signals may be sequentially and periodically selected and converted into an intermediate frequency signal or a baseband video / audio signal.

The network interface unit 115 receives at least one content provided from the content provider.

When the display apparatus 10 of the present invention is an IPTV, the network interface unit 115 receives content provided from one content provider.

When the display apparatus 10 of the present invention is a broadband TV, the network interface 115 may receive various contents provided from a plurality of content providers.

As described above, the content may include various kinds of video, audio, or data services such as broadcast programs, VOD services, movies, music, sports, video chats, etc., and may correspond to 'programs' described below. have.

The network interface unit 115 accesses the Internet to receive content corresponding to a specific URL or IP address, and may include a network interface card (NIC) for this purpose.

On the other hand, the display device having the network interface unit 115 may mean that the ADSL-TV, VDSL-TV, FTTH-TV, etc. according to the type of transmission network, TV over DSL, Video over DSL, TV It may mean including overIP (TVIP), Broadband TV (BTV), and the like. In addition, IPTV may also mean an Internet TV capable of accessing the Internet, or a full browsing TV.

The display device 10 according to the present invention may receive terrestrial broadcast signals, wired cable broadcast signals, satellite soundproof signals, and IPTV broadcast signals through the tuner 110 and the network interface 115.

Meanwhile, the tuner 110 and the network interface 115 may receive the same program. However, even if the tuner 110 and the network interface 115 receive the same program, the program received through the tuner 110 is an RF program and the program received through the network interface 115. Is a network program.

In other words, the tuner 110 receives a program allocated for each frequency band, and the network interface unit 115 receives a program allocated for each Uniform Resource Locator (URL) or Internet Protocol (IP) address. In conclusion, the tuner 110 and the network interface 115 may receive a program provided through different transmission paths.

The external signal input unit 118 performs signal input with an external device. To this end, the external signal input unit 128 may include an A / V input / output unit (not shown), and a wireless communication unit (not shown).

The external signal input unit 118 is connected to an external device such as a digital versatile disk (DVD), a Blu-ray, a game device, a camcorder, a computer (laptop), or the like to receive an external input video signal, an external input audio signal, and an external device. The input data signal is transmitted to the controller 140 in the display apparatus 10. In addition, the video signal, the audio signal, and the data signal processed in the controller 140 may be output to another external device.

The A / V input / output unit (not shown) includes an Ethernet terminal, a USB terminal, a Composite Video Banking Sync (CVBS) terminal, a component terminal, and an S for input / output of video / audio signals with an external device. -Video terminal (analog), DVI (Digital Visual Interface) terminal, HDMI (High Definition Multimedia Interface) terminal, RGB terminal, D-SUB terminal, IEEE 1394 terminal, SPDIF terminal, Liquid HD terminal, etc. have.

Meanwhile, although not shown in the drawing, various input signals input through the external signal input unit 118 may be input to the channel browsing processor 130 to be described later to perform thumbnail image extraction processing. For example, the analog signal input through the CVBS terminal and the S-video terminal may be input to the channel browsing processor 130 after being converted into a digital signal as described above. Digital signals input through other input terminals may be directly input to the channel browsing processor 130 without analog / digital conversion. Here, the digital signal output from the external signal input unit 118 may be a stream signal. For example, an MPEG-2 TS multiplexed with an MPEG-2 standard video signal, a Dolby AC-3 standard audio signal, or the like. It may be (Transport Stream).

The wireless communication unit (not shown) may perform a wireless Internet connection. For example, for wireless Internet access, a wireless local area network (WLAN) (Wi-Fi), a wireless broadband (Wibro), a world interoperability for microwave access (Wimax), a high speed downlink packet access (HSDPA), or the like may be used. .

In addition, the wireless communication unit (not shown) may perform short-range wireless communication with other electronic devices. For example, Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, etc. may be used.

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

For example, when the digital IF signal DIF output from the tuner 110 is an ATSC scheme, the demodulator 120 performs 8-VSB (8-Vestigal Side Band) demodulation. Also, the demodulation unit 120 may perform channel decoding. To this end, the demodulator 120 includes a trellis decoder, a de-interleaver, a reed solomon decoder, and the like. de-interleaving) and read solo decoding.

For example, when the digital IF signal DIF output from the tuner 110 is a DVB scheme, the demodulator 120 performs coded orthogonal frequency division modulation (COFDMA) demodulation. Also, the demodulation unit 120 may perform channel decoding. To this end, the demodulator 120 may include a convolutional decoder, a deinterleaver, a reed-soloman decoder, and the like to perform convolutional decoding, deinterleaving, and reed-soloman decoding.

That is, the demodulator 110 may perform demodulation and channel decoding and output a stream signal TS. In this case, the stream signal TS may be a signal multiplexed with a video signal, an audio signal, and a data signal. For example, the stream signal TS may be an MPEG-2 Transport Stream (TS) multiplexed with an MPEG-2 standard video signal, a Dolby AC-3 standard audio signal, and the like. In more detail, the MPEG-2 TS may include a header of 4 bytes and a payload of 184 bytes.

The stream signal TS is input to the controller 140 to perform demultiplexing, signal processing, and the like. According to an exemplary embodiment of the present disclosure, before being input to the controller 140, the channel browsing processor 130 may be input to the channel browsing processor 130 to perform the processing for the stream signal TS channel browsing.

On the other hand, the demodulator 120 described above can be provided separately according to the ATSC system and the DVB system. That is, it can be provided as an ATSC demodulation unit and a DVB demodulation unit.

The channel browsing processor 130 performs a browsing process for a program received through the network interface 115. In this case, the channel browsing processing unit 130 performs the browsing process only for the program provided through the network interface unit 115. However, the present invention is not limited thereto, and the channel browsing processing unit 130 is not limited thereto. The browsing process of the signal received through the tuner 110 or the signal received through the external signal input unit 118 may be performed. In detail, the channel browsing processor 130 receives a stream signal demodulated and decoded by the demodulator 120, receives a stream signal provided through the network interface 115, or receives an external signal input unit 118. Receive a stream signal. The channel browsing processor 130 demultiplexes the input stream signal TS 1 or TS 2, extracts some of the demultiplexed video signals, and includes an extracted video signal. The new stream signal can be output by multiplexing on the basis of. For example, the new stream signal may be MPEG 2 TS.

In addition, the channel browsing processor 130 may output the main stream signal corresponding to the main video signal displayed in the main area among the video signals displayed on the display unit 165 without any additional processing, and displays the display 165. The sub stream signal corresponding to the sub video signal displayed in the sub region among the video signals displayed on the screen may be output by performing channel browsing processing as described above.

According to an embodiment of the present invention, when the channel list (channel browser) is displayed on the display unit 165 by extracting some images of the plurality of programs through the channel browsing processing unit 130 and re-encoding them in a stream form, the plurality of channels are displayed. At least a part of the program may be generated as a thumbnail image, and accordingly, a channel browser having a plurality of thumbnail images may be displayed on the display unit 165. Accordingly, the user can intuitively know the content broadcast in the other channel.

When the channel browsing processor 130 extracts some images of various external input images input through the external signal input unit 118 and re-encodes them in a stream form, the channel browsing processor 130 displays the external input list on the display unit 165. At least a portion of an external input image from the external input device of the apparatus may be generated as a thumbnail image, and a channel browser including the generated plurality of thumbnail images may be illustrated on the display unit 165. Accordingly, the user can intuitively know the content input from the external input device.

On the other hand, the channel browsing processing unit 130 extracts the program of the channel and the partial image of the above-described external input image and re-loads the stream browser to display the channel browser on the display unit 165. At least a portion of a program and external input images from the plurality of external input apparatuses may be generated as thumbnail images, and the channel browser including the generated plurality of thumbnail images may be displayed on the display unit 165. Accordingly, the user can intuitively know the contents input from the plurality of channels and the external input device.

The channel browsing processor 130 will be described in more detail below.

The controller 140 may demultiplex the input stream and signal-process the demultiplexed signals to generate and output signals for video and audio output. In addition, the overall operation of the display apparatus 10 may be controlled.

Although not shown in the drawing, the controller 140 may include a demultiplexer, an image processor, a voice processor, a user input signal processor, and the like.

The controller 140 may demultiplex an input stream signal, for example, an MPEG-2 TS, and divide the input stream signal into a video signal, an audio signal, and a data signal, respectively.

In addition, the controller 140 may perform image processing of the demultiplexed image signal. For example, when the demultiplexed video signal is an encoded video signal, it may be decoded. Specifically, when the demultiplexed video signal is an encoded video signal of MPEG-2 standard, it may be decoded by an MPEG-2 decoder. In addition, when the demultiplexed video signal is a video signal of the H.264 standard according to the Digital Multimedia Broadcasting (DMB) scheme or DVB-H, it may be decoded by the H.264 decoder.

In addition, the controller 140 may process brightness, tint, color, and the like of the image signal.

The image signal processed by the controller 140 is input to the display unit 165 to be displayed. It is also possible to input to an external output terminal connected to the external output device.

In addition, the controller 140 may perform voice processing of the demultiplexed voice signal. For example, if the demultiplexed speech signal is a coded speech signal, it can be decoded. Specifically, when the demultiplexed speech signal is an encoded speech signal of MPEG-2 standard, it may be decoded by an MPEG-2 decoder. In addition, when the demultiplexed speech signal is an encoded speech signal of MPEG 4 Bit Sliced Arithmetic Coding (BSAC) standard according to the terrestrial digital multimedia broadcasting (DMB) scheme, it may be decoded by an MPEG 4 decoder. In addition, when the demultiplexed speech signal is an encoded audio signal of the AAC (Advanced Audio Codec) standard of MPEG 2 according to the satellite DMB scheme or DVB-H, it may be decoded by the AAC decoder.

In addition, the controller 140 may process base, treble, volume control, and the like.

The voice signal processed by the controller 140 is input to the sound output unit 160, for example, a speaker, and outputs voice. It is also possible to input to an external output terminal connected to an external output device.

In addition, the controller 140 may perform data processing of the demultiplexed data signal. For example, when the demultiplexed data signal is an encoded data signal, it may be decoded. The encoded data signal may be EPG (Electronic Program Guide) information including broadcast information such as a start time and an end time of a broadcast program broadcasted in each channel. For example, the EPG information may be TSC-PSIP (ATSC-Program and System Information Protocol) information in the ATSC scheme, and may include DVB-Service Information (DVB-SI) in the DVB scheme. . The ATSC-PSIP information or the DVB-SI information may be information included in the aforementioned stream, that is, the header (4 bytes) of the MPEG-2 TS.

In addition, the controller 140 may perform an on screen display (OSD) process. In detail, the controller 140 may perform various operations on the screen of the display unit 165 based on the image processed video signal, at least one of the data processed data signal, and the user input signal from the remote control apparatus 200. Signals may be generated for displaying information in a graphic or text form. The generated signal may be input to the display unit 165 together with the image processed image signal and the data processed data signal.

The signal generated for the graphic or text display described above may include various data such as a user interface screen, various menu screens, widgets, and icons of the display apparatus 10.

The storage unit 150 may include a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (eg, SD or XD memory), It may include at least one type of storage medium such as RAM, ROM (EEPROM, etc.).

Although the storage unit 150 is illustrated as being separately provided from the control unit 140 in the drawing, the present invention is not limited thereto, and the storage unit 150 may be included in the control unit 140.

On the other hand, the display apparatus 10 may play a file (video file, still image file, music file, document file, etc.) stored in the storage unit 150 to provide to the user.

The sound output unit 160 receives a signal processed by the controller 140, for example, a stereo signal, a 3.1 channel signal, or a 5.1 channel signal, and outputs a voice signal. The sound output unit 160 may be implemented as various types of speakers.

The display unit 165 converts the image signal, the data signal, the OSD signal, or the image signal received from the external signal input unit 118 into the R, G, and B signals, respectively. Generate a signal. The display unit 165 may be implemented in various forms such as a PDP, an LCD, an OLED, a flexible display, and a 3D display. In addition, the display unit 165 may be configured as a touch screen and used as an input device in addition to the output device.

The interface unit 170 transmits an input signal from the user to the controller 140 or transmits a signal from the controller 140 to the user. For example, the interface unit 170 may power on / off, channel selection, screen setting, etc. from the remote control apparatus 200 according to various communication schemes such as an RF (Radio Frequency) communication scheme and an infrared (IR) communication scheme. Receives a user input signal of the or may transmit a signal from the control unit 140 to the remote control device 200.

The remote control apparatus 200 transmits a user input to the interface unit 170. 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.

In addition, the remote control apparatus 200 may receive an image signal, an audio signal, a data signal, etc. from the interface unit 170 and output the same.

On the other hand, the remote control device 200 according to an embodiment of the present invention may be a spatial remote control. A description of the spatial remote controller will be provided later with reference to FIG. 4.

The above-described display apparatus 10 is a fixed type, among which ATSC (8-VSB) digital broadcasting, DVB-T (COFDM) digital broadcasting, ISDB-T (BST-OFDM) digital broadcasting, and the like. It may be a digital broadcast receiver capable of receiving at least one, and may also be a mobile type, such as terrestrial DMB digital broadcasting, satellite DMB digital broadcasting, ATSC-M / H digital broadcasting, DVB-H digital (COFDM) digital. A digital broadcast receiver capable of receiving at least one of a broadcast, a media flow link only digital broadcast, and the like. It may also be a digital broadcast receiver for cable, satellite communications, or IPTV.

Meanwhile, the display device described in the present specification includes a TV receiver, a mobile phone, a smart phone, a notebook computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), and the like. do.

3 is a detailed block diagram of the control unit shown in FIG. 2.

Referring to the drawings, in relation to an embodiment of the present disclosure, the controller 140 may include a thumbnail image extractor 310, an error detector 320, and a channel browsing controller 330. The controller 140 may further include a video signal processor, an audio signal processor, and the like as described above.

The thumbnail image processed by the channel browsing processor 130 described above may cause an error when the stream is transmitted to the controller 140 or for various other reasons. In this case, it is necessary to stably process the updated thumbnail image.

The thumbnail image extractor 310 extracts a thumbnail image corresponding to the input signal. For example, when a thumbnail image corresponding to an input signal is extracted by the channel browsing processor 170 and encoded into a stream, and the thumbnail stream is transmitted to the controller 140, the thumbnail image extractor 310 is input. A thumbnail picture may be extracted from the thumbnail stream.

To this end, the thumbnail image extractor 310 may demultiplex the thumbnail stream. In addition, a part of the thumbnail image may be extracted by parsing the demultiplexed thumbnail stream.

Meanwhile, the thumbnail image extractor 310 may generate a thumbnail list including the extracted thumbnail image. Accordingly, the thumbnail image extracting unit 310 may control to display the generated thumbnail list on the display unit 165.

Meanwhile, the thumbnail image extractor 310 may generate a thumbnail list including the updated thumbnail image.

In addition, the thumbnail image extractor 310 may perform database management. For example, it may be a database for terrestrial broadcasting, cable broadcasting, digital broadcasting, analog broadcasting, network broadcasting, and external input signals. In addition, various functions such as adding, removing, changing, and searching items of thumbnail images may be provided.

The error detector 320 checks an error of the thumbnail image extracted by the thumbnail image extractor 310. When an error occurs in the thumbnail image, the error thumbnail image is prevented from being displayed in a broken form. To this end, the error detector 320 may check at least one of size information, syntax information, checksum information, continuity information, and content information of the extracted thumbnail image. .

When the thumbnail image is extracted in the packet unit by the thumbnail image extractor 310, the error detector 320 checks the size information of the thumbnail image in the packet unit, or checks the syntax information of the packet unit or the like to restore the thumbnail image. Checksum information can be checked. In addition, when a thumbnail image of a continuous packet unit is extracted, it is also possible to check the continuity of the received packet unit thumbnail by examining information indicating the packet unit order, for example, the packet order bit.

In addition, as the content information check, it is also possible to temporarily decode at least a part of the encoded thumbnail image to check whether or not there is an error in the original thumbnail image itself.

If no error is detected by the error detector 320, the error detector 320 transmits a control signal to the thumbnail image extractor 310 and transmits a channel browser screen including the extracted thumbnail image to the display unit 165. Control to display.

When an error is detected by the error detector 320, the error detector 320 transmits a control signal to the channel browsing controller 330 or the thumbnail image extractor 310 to stop updating of the thumbnail image or to display a thumbnail image. Command to stop the extraction operation. It is also possible to delete the thumbnail image from which an error is detected from the thumbnail list.

Meanwhile, the channel browsing control unit 330 controls the channel browsing processing unit 130 to operate according to a user's command through the interface unit 170. For example, when there is a channel browser view command, which is a command to display a screen including a thumbnail image, the channel browsing control unit 330 controls the tuner 110 from a program provided through the network interface unit 115. The channel browsing processor 130 may be controlled to acquire a thumbnail image of a program provided through the program.

That is, while the current user is watching a specific program provided through the tuner 110, information of another program cannot be checked. This is possible when a plurality of tuners are provided, but it is impossible to perform the above operation when only one tuner is provided.

Accordingly, in an embodiment according to the present invention, a channel browser for a program provided through the tuner 110 may be generated based on a program provided through the network interface unit.

Meanwhile, the tuner 110 receives a program allocated for each frequency band, and the network interface unit 115 receives a program allocated for each Internet Protocol (IP) address. Accordingly, it is necessary to check which IP address of the network interface unit 115 is the program being broadcast in the '198-204Mhz' band through the tuner 110.

Accordingly, the channel browsing control unit 330 first checks channel information of all programs provided through the tuner 110 (first path).

That is, as shown in FIG. 4, the channel browsing control unit 330 checks a frequency band corresponding to each channel by using additional information about a program provided in each channel, and accordingly, a program broadcasted in the channel. Check the name information, etc. Based on this, the channel browsing processor 330 may check channel numbers, names, and frequency band information of all programs provided through the tuner 110.

In addition, the channel browsing control unit 330 checks information on all programs provided through the network interface unit 115 (second path). That is, the program provided through the network interface unit 115 includes summary information about each program, and the summary information may be provided in RSS (Really Simple Syndication) data or ATOM data format. That is, the signal received from the network interface unit 115 may include RSS data or ATOM data, which is summary information about each program.

As illustrated in FIG. 5, the channel browsing control unit 330 checks name information and address information of all programs provided through the network interface unit 115 using the RSS data or ATOM data.

As described above, when information on all programs provided through the first path and the second path is confirmed, the channel browsing control unit 330 may program the same path in each of the programs provided through the second path. Give channel information on. The given channel information is any one of channel number information and frequency band information.

That is, as shown in FIG. 6, the channel browsing control unit 330 uses any IP address of a second path of the same program as the 'SBS' program of channel 6 provided through the 88-88Mhz band of the first path. Check if it is provided. In addition, since it is confirmed that the 'SBS' program is provided through the '444.444.44.444' IP address of the second path as described above, the channel browsing controller 330 uses the '444.444.44.444' IP address of the second path. A first path information such as' CH 6 'or '82 -88Mhz' is given to a program provided through the program. In addition, the channel browsing control unit 330 likewise assigns the first path information to all programs provided through the second path.

In other words, the channel browsing control unit 330 checks the IP address assigned to each program provided through the first path, and accordingly, matches the location information and the second location information of the first path by the same program. Let's do it.

Accordingly, the channel browsing control unit 330 obtains a thumbnail image of the 'SBS' program provided through 'CH 6' of the first path from the program provided through the '444.444.44.444' IP address of the second path. Be sure to

Likewise, the channel browsing control unit 330 may provide a thumbnail image of the KBS 2 program provided through the CH 7 of the second path through the IP address of the 333.333.33.333 IP of the second path. A thumbnail image for the 'KBS 1' program provided through 'CH 9' of the second path, to be obtained from the program provided through the '222.222.22.222' IP address of the second path, and The thumbnail image for the 'MBC' program provided through the 'CH 11' of the path may be obtained from the program provided through the '111.111.11.111' IP address of the second path.

In addition, the channel browsing control unit 330 may generate a thumbnail image of a program provided through the second path in the order of the given channel information, or may generate the thumbnail image regardless of the channel information. It may be.

That is, the channel browsing control unit 330 preferentially acquires a thumbnail image of a program provided through the '444.444.44.444' IP address to which the fastest channel information is assigned, and then the '333.333.33.333' IP address. The thumbnail image for the program provided through the to be obtained.

In addition, the channel browsing control unit 330 may obtain the thumbnail images in the order of IP addresses of the second path, and accordingly, arrange the obtained thumbnail images in the order of the given channel information.

In addition, the channel browsing controller 330 may control an update operation of the thumbnail image performed by the channel browsing processor 130. In this case, the channel browsing controller 330 may control the operation of the network interface 115.

For example, a thumbnail image of a channel selected by a user, a thumbnail image in which a search cursor is located, a thumbnail image corresponding to a favorite channel, or a thumbnail image of a channel corresponding to a favorite genre or the previous genre among the thumbnail images displayed on the display unit 165. In the case of a thumbnail image corresponding to a viewing channel, the channel browsing control unit 330 controls operations of the corresponding modules to display thumbnail images of a user selection, a search cursor position, a favorite channel, a favorite genre, and a channel corresponding to a previous viewing channel. To be updated. This allows the user to easily check the program provided through each channel at this point in time, and select the viewing channel accordingly.

In addition, when an error is detected by the error detector 320, the channel browsing controller 330 may stop acquiring a thumbnail image performed by the channel browsing processor 130.

Meanwhile, the channel browsing control unit 330 may perform operations of the corresponding modules, including the channel browsing processing unit 130 so that thumbnail images corresponding to all broadcast channels existing on the channel map previously stored in the storage unit 150 are obtained. Can be controlled.

In addition, the channel browsing control unit 330 may control to generate only a thumbnail image of a program provided in a predetermined number of channels or a specific channel, instead of all broadcasting channels. The predetermined number of channels may be channels corresponding to thumbnail images included in the thumbnail list, and the thumbnail list may be a thumbnail list or the like recently displayed on the display unit 165. In addition, the specific channel may be a channel selected by a user.

In addition, unlike the drawing, the channel browsing controller 330 may control the channel browser including the thumbnail image extracted by the thumbnail image extractor 310 to be displayed on the display unit 165.

The storage 150 may store the thumbnail image extracted by the thumbnail image extractor 310. The thumbnail image stored in the storage unit 150 may be displayed through the display unit 165, for example, when there is a channel browser display command through the interface unit 170. In addition, the storage unit 150 may store first path information for each program of the second path given through the channel browsing control unit 330.

Meanwhile, the above-described thumbnail image extracting unit 310, the error detecting unit 320, and the channel browsing control unit 330 may not be provided in the control unit 140 but may be implemented as an independent module or a combination of two or more.

FIG. 7 is a detailed block diagram of the channel browsing processing unit shown in FIG. 2.

Referring to the drawings, the channel browsing processor 130 includes a decoder 710, a format converter 720, an image encoder 730, and a stream encoder 740.

First, although not shown in the drawing, the channel browsing processor 130 may further include a switch (not shown), and may select and output any one stream for obtaining a thumbnail image among a plurality of input streams. . In addition, the channel browsing processing unit 130 may further include a demultiplexer (not shown) to demultiplex the received stream signal and separate the video signal, the audio signal, and the data signal, respectively. The video signal among the separated signals is transmitted to the decoder 710, and other audio and data signals may be transmitted to the stream encoder 740 to form a new stream.

The decoder 710 decodes at least a portion of the video signal which is demultiplexed and input. Decoding may be performed by an MPEG 2, MPEG-4 or H.264 decoder or the like. The decoded image may be a still image or a moving image. For example, the decoder 710 may decode an image of an I picture among the input video signals, or may decode some sections of the input video signals.

In addition, when the signal input from the outside is an analog signal, the decoder 710 converts the analog signal into a digital signal and obtains a digital image based on the converted digital signal.

The format converter 720 converts the format of the video signal input from the decoder 710. For example, the magnitude (resolution) of the input video signal may be converted. The size conversion may be set according to the number of thumbnail images in the thumbnail list displayed on the display unit 165. For example, as the number of thumbnail images increases, the size of the thumbnail images may decrease.

The format converter 720 may convert the size of the video signal according to whether the channel browser is displayed through the entire area or the partial area of the display 165. For example, the size of the thumbnail image displayed through the entire area may be larger than the size of the thumbnail image displayed through the partial area.

The video encoder 730 encodes the video signal converted by the format converter 720. For example, the image size-converted by the format converter 720 may be encoded in JPEG or MPEG-2. The still image or video encoded by the image encoder 730 may be displayed on the display unit 165 as a thumbnail image.

The stream encoder 740 encodes the data in a stream form based on the video coded by the video encoder 730. That is, the stream encoder 740 may reencode the image encoded by the image encoder 730 and the audio signal and the data signal demultiplexed by the demultiplexer (not shown). Recoding may be performed in a multiplexed manner. The encoded stream form may be an MPEG 2 TS form.

8 is a diagram illustrating an example of a channel browser generated through the channel browsing processing unit 130 configured as described above.

Referring to FIG. 8, the channel browser 800 includes a broadcast information providing area 810 including a thumbnail image that is broadcast information about each channel.

In addition, the broadcast information providing area 810 includes a first path information providing area 820 and a thumbnail image providing area 830.

That is, the thumbnail image providing area 830 displays a thumbnail image obtained from the program provided through the second path.

In the first path information providing area 820, first path information on a thumbnail image provided through the thumbnail image providing area 830 is displayed. That is, although the obtained thumbnail image is obtained from a program of the second path, information about which channel or frequency band of the first path is provided substantially the same program as the thumbnail image is displayed. That is, the content displayed on the first path information providing area 820 is first path information applied to each of the obtained thumbnail images. In addition, although the channel number information is provided as the first path information in the drawing, it may be provided as the frequency band information.

In addition, the channel browser 800 may further include an editing menu based on the displayed thumbnail image. As shown in the edit menu, a "channel lock" item that locks a selected thumbnail image so that it cannot be edited, a "zoom" item that enlarges or reduces the thumbnail image or channel browser and displays a thumbnail image "Sort Channel" item to sort and display, "Quick View" item to display the image of selected channel on part of the display while displaying thumbnail image on other part, and "Exit" to move to other menu items in "Channel Browser" Items and the like.

In addition, although not shown in the drawing, an " edit " item for editing the selected thumbnail image, " previous " item for displaying a previous thumbnail list other than the displayed thumbnail list, and " for displaying the next thumbnail list other than the displayed thumbnail list. Next "item and the like.

When the "zoom" item is selected among the edit items shown in FIG. 8, that is, when there is an input for changing the number of thumbnail images displayed, the number of thumbnail images displayed in the channel browser may be changed.

On the other hand, when the channel browser is displayed on the display unit 165, when there is an editing command, a program corresponding to the selected thumbnail image may be edited such as "favorite registration", "delete registration", "lock registration" and the like.

On the other hand, when the channel browser is displayed on the display unit 165, when there is a command of the next screen view or the previous screen view, the next screen or the previous screen may be displayed while dragging, scrolling or rotating in three dimensions.

9 and 10 are diagrams illustrating an example of the remote control apparatus illustrated in FIG. 2.

Referring to the drawings, the space remote controller 900 may be used as the remote control apparatus 200 of FIG. 2.

The spatial remote controller 900 is one of the remote control apparatus 200 capable of inputting a command to the display apparatus 10. In the present embodiment, the spatial remote controller 900 transmits and receives a signal according to the RF communication standard with the display apparatus 10. As shown in FIG. 9, the display apparatus 10 may display a pointer 910 corresponding to the position of the spatial remote controller 900.

The user may move or rotate the space remote control 900 up, down, left, and right. The pointer 910 displayed on the display apparatus 10 corresponds to the movement of the spatial remote controller 900. FIG. 10 illustrates a bar that moves a pointer displayed on the display apparatus 10 in response to the movement of the spatial remote controller 900.

As shown in FIG. 9, when the user moves the spatial remote controller 900 to the left side, the pointer displayed on the display apparatus 10 also moves to the left side correspondingly. In the present embodiment, the spatial remote controller 900 includes a sensor that can determine the movement. Information about the movement of the spatial remote controller 900 detected through the sensor of the spatial remote controller 900 is transmitted to the display apparatus 10. The display apparatus 10 determines the operation of the spatial remote controller 900 from information about the movement of the spatial remote controller 900 and calculates a coordinate value of the pointer 1000 corresponding thereto.

9 and 10 illustrate an example in which the pointer 1000 displayed on the display unit 165 moves in response to up, down, left, or right rotation of the spatial remote controller 900. The moving speed or the moving direction of the pointer 1000 may correspond to the moving speed or the moving direction of the spatial remote controller 900.

In the present embodiment, the pointer displayed on the display apparatus 10 is set to move in response to the operation of the spatial remote controller 900. As another example, a predetermined command may be input to the display apparatus 10 in response to an operation of the spatial remote controller 900. That is, when moving back and forth of the spatial remote controller 900, the size of the image displayed on the display apparatus 10 may be enlarged or reduced. Therefore, this embodiment does not limit the scope of the invention.

In addition, the user may select one of the thumbnail images provided through the channel browser 800 by using the spatial remote controller 900.

When a specific thumbnail image is generated through the spatial remote controller 900, the controller 140 causes a program corresponding to the generated thumbnail image to be displayed on the display unit 165.

That is, when one of the thumbnail images displayed on the display unit 165 is selected, the control unit 140 uses the tuner 110 based on the first path information corresponding to the selected thumbnail image. Allow the program to be received.

In addition, the controller 140 allows the corresponding program to be received through the network interface unit 115 based on the second path information corresponding to the selected thumbnail image, and displays the received program on the display unit 165. You can also

In this case, the received program may be set by a user, or a program provided through one path may be selected according to a predetermined priority among the first path and the second path.

11 is a flowchart illustrating a step-by-step method of providing channel information of a display apparatus according to an exemplary embodiment of the present invention.

Referring to FIG. 11, the controller 140 selects one specific program to which channel information is to be assigned from among programs provided through the first path (step 100). That is, the controller 140 selects one of the programs existing in the channel map by using the prestored channel map. In this case, the selected program may be a program having the fastest channel number, a program having the lowest frequency band, or may be a program next to the previously selected program.

When the program is selected, the controller 140 checks information on the selected program (step 110). That is, the controller 140 checks name information, channel number information, and frequency band information of the selected program.

The controller 140 searches for the same program as the selected program among the programs provided through the second path (step 120). That is, the controller 140 compares RSS (Really Simple Syndication) data or ATOM data of the program provided through the second path with the checked program information, and searches for a program having the same information accordingly.

Subsequently, the controller 140 determines whether the same program as the selected program is found among the programs provided through the second path (step 130).

If the same program is found, the controller 140 checks the information of the found program (step 140). That is, the controller 140 checks the name information and the IP address information of the searched program.

The controller 140 gives channel information allocated to the selected program to the searched program (step 150). That is, the controller 140 matches the first path information and the second path information provided with the specific program. For example, as shown in FIG. 6, when the selected program is a 'KBS 2' program, 'CH 7' and '174-780Mhz' information, which is first path information for the KBS 2 program, and a second path. Information 333.333.33.333 IP address information is matched.

The controller 140 stores the channel information provided to the searched program in the storage 150 (step 160). That is, the controller 140 may include first path information including a name of the selected program, channel number information and frequency band information provided by the program, and second path information including IP address information provided by the program. To store in the storage unit 150.

When the channel information granting process is completed for the selected program, the controller 140 determines whether the channel information granting for all the programs is completed. In step 100, the process returns the channel information for the next program (step 170).

12 is a flowchart for explaining a method of providing a channel browser according to a first embodiment of the present invention step by step.

Referring to FIG. 12, the controller 140 controls to obtain a thumbnail image of each program provided through the second path (step 200). That is, the network interface unit 115 receives a program provided through each IP address, and the channel browsing processor 130 obtains a thumbnail image of each program received through the network interface unit 115. In this case, the network interface unit 115 may not receive a program corresponding to all IP addresses, but sequentially receive only programs to which channel information about a first path is assigned.

The controller 140 checks whether an error thumbnail image exists among the obtained thumbnail images (step 210).

If there is a thumbnail image in which an error occurs, the controller 140 removes the thumbnail image in which the error occurs (step 220), and controls to reacquire the removed thumbnail image (step 230). Accordingly, the network interface unit 115 receives the program corresponding to the removed thumbnail image again, and the channel browsing processor 130 reacquires the thumbnail image of the received program.

The controller 140 controls the thumbnail images generated as described above to be sorted in the order of donated channel information (step 240). That is, as described above, the channel information corresponding to the first path information is assigned to the program in which the thumbnail image is obtained. Accordingly, the controller 140 sorts the obtained thumbnail images in order of the channel information. In addition, the controller 140 may control the thumbnail image to be acquired in the order of the given channel information in the process of acquiring the thumbnail image.

The controller 140 checks the channel information applied to each sorted thumbnail image (step 250). That is, the controller 140 checks the channel information according to the first path information provided with the program according to each of the thumbnail images.

The controller 140 generates a channel browser including the checked channel information and a thumbnail image corresponding thereto, and accordingly, the channel browsing processor 130 corresponds to the acquired thumbnail image. Create a channel browser is displayed (step 260).

The controller 140 controls the generated channel browser to be displayed, and accordingly, the generated channel browser is displayed on the display unit 165 (step 270).

Accordingly, in an exemplary embodiment of the present invention, a channel browser for a program provided through the first path may be generated and provided using the program provided through the second path.

FIG. 13 is a flowchart for explaining a method of providing a channel browser of a display apparatus according to a second embodiment of the present invention step by step.

Referring to FIG. 13, the controller 140 receives request for broadcast information on a specific program (first program) among programs provided through the first path (step 300). The request for the airing information is transmitted to the interface unit 170 through the remote control device 200, and accordingly, the control unit 140, based on the transmitted request signal, of the first program for which the airing information is requested. The thumbnail image is acquired. In this case, the program displayed through the display unit 165 may be another program except the first program. That is, the user may request broadcasting information of another program while watching a specific program using one tuner 110.

The controller 140 searches for a second program that is identical to the first program for which the broadcasting information is requested among the programs provided through the second path (step 310). That is, the controller 140 searches for the second program that is identical to the first program by comparing the information of the first program with RSS (Really Simple Syndication) data or ATOM data of the programs provided through the second path. can do. In addition, the controller 140 searches for the second program to which the channel information of the first program is assigned from the program provided through the second path by using the provided channel information.

In operation 320, the controller 140 controls to obtain a thumbnail image of the searched program. Accordingly, the network interface unit 115 receives the searched second program, and the channel browsing processor 130 obtains a thumbnail image from the received second program.

The controller 140 checks whether an error has occurred in the obtained thumbnail image (step 330).

If there is a thumbnail image in which an error occurs, the controller 140 removes the thumbnail image in which the error occurs (step 340), and controls to reacquire the removed thumbnail image (step 350). Accordingly, the network interface unit 115 receives the second program corresponding to the removed thumbnail image again, and the channel browsing processing unit 130 reacquires the thumbnail image of the received second program.

The controller 140 checks channel information of the same first program as the second program (step 360). That is, the controller 140 checks channel number information and frequency band information which are channel information allocated to the second program (step 360).

The controller 140 controls to generate a channel browser including the generated thumbnail image and the identified channel information, and accordingly, the channel browsing processor 130 adds the identified channel information to the generated thumbnail image. In operation 370, the added channel browser is generated.

The generated channel browser is displayed on the display unit 165 (step 380).

14 is a flowchart illustrating a step-by-step method of receiving a program of a display apparatus according to an exemplary embodiment of the present invention.

Referring to FIG. 14, as shown in FIGS. 12 and 13, the channel browser obtained from the program provided through the second path is displayed on the display unit 165 (step 400).

The controller 140 checks whether a specific thumbnail image is selected on the displayed channel browser in step 410.

If a specific thumbnail image is selected on the channel browser, the controller 140 checks first path information and second path information of a program corresponding to the selected thumbnail image (step 420). That is, the controller 140 checks IP address information of a program that acquires the selected thumbnail image and channel information (channel number information and frequency band information) assigned to the thumbnail image.

The controller 140 checks a predetermined path selection condition in step 430. The path selection condition may be set by a user or arbitrarily set by the controller 140. In addition, the path selection condition may be preferentially set to a path having a high resolution.

The controller 140 determines whether the predetermined path is the first path based on the checked path selection condition (step 440).

If the preset path is the first path, the controller 140 controls the tuner 110 to receive a program corresponding to the channel information provided to the selected thumbnail image (step 450).

In addition, if the preset path is the second path, the controller 140 controls the network interface unit 115 to receive a program corresponding to the checked IP address (step 460).

As described above, according to an exemplary embodiment of the present invention, a channel browser function for an RF channel can be simply implemented without adding a tuner by using a display device to which IPTV is currently being rapidly developed.

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

In addition, the above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains various modifications and variations without departing from the essential characteristics of the present invention. . Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

1 is a block diagram showing a configuration of a display system according to an embodiment of the present invention.

2 is a view showing the configuration of a display device in an embodiment of the present invention.

3 is a detailed block diagram of the controller shown in FIG. 2;

4 to 6 are diagrams for explaining the operation of the controller.

FIG. 7 is a detailed block diagram of the channel browsing processing unit shown in FIG. 2. FIG.

8 illustrates a channel browser generated by an embodiment of the present invention.

9 and 10 show an example of the remote control device shown in FIG.

11 is a flowchart for explaining a method of providing channel information of a display apparatus according to an exemplary embodiment of the present invention.

12 is a flowchart for explaining a method of providing a channel browser according to a first embodiment of the present invention step by step.

FIG. 13 is a flowchart illustrating a step-by-step method of providing a channel browser of a display apparatus according to a second embodiment of the present invention; FIG.

14 is a flowchart illustrating a step-by-step method of receiving a program of a display apparatus according to an exemplary embodiment of the present invention.

Claims (23)

Receiving a program provided via a second path; Acquiring broadcast information of programs provided through a first path from a program received through the second path; And, And providing a channel browser for the programs provided through the first path by using the broadcasting information obtained from the program of the second path. The method of claim 1, The broadcast information is a channel browser providing method of a display device, characterized in that the thumbnail image. The method of claim 1, The first path is a reception path of programs allocated for each frequency band, The second path is a channel browser providing method of a display device, characterized in that the receiving path of the programs allocated for each IP (Internet Protocol) address. The method of claim 3, And providing channel information of a program provided through the first path to each program provided through the second path. The method of claim 4, wherein The same program provided through the first and second paths have the same channel information, And the channel information is at least one of channel number information and frequency band information of a first path in which the program is provided. The method of claim 4, wherein The broadcast information included in the channel browser is arranged in the order of the given channel information channel browser providing method of the display device. The method of claim 4, wherein And displaying the channel information attached to each piece of broadcast information and displaying the channel browser. The method of claim 5, And if a particular broadcast information is selected in the channel browser, receiving a program corresponding to the selected broadcast information. The method of claim 8, And the received program is a program provided through a first path. The method of claim 8, And the received program is a program provided through a second path. Requesting airing information of the first program provided through the first path; Searching for a second program that is identical to a specific program for which the broadcasting information is requested among programs provided through a second path; Acquiring broadcast information of the first program using the searched second program; And, And providing a channel browser of the first program based on the broadcasting information obtained by using the second program. The method of claim 11, The first program is a program assigned to a specific frequency band, And the second program is a program assigned to a specific IP (Internet Protocol) address. The method of claim 12, The searching step Retrieving a second program identical to the first program by comparing RSS (Really Simple Syndication) data or ATOM data of the program provided through the second path with broadcast information of the first program. Channel browser providing method of the display device. The method of claim 12, And providing channel information of a program provided through the first path to each program provided through the second path. 15. The method of claim 14, The searching step And searching for a second program provided with the same channel information as the channel information of the first program among the programs provided through the second path. A first receiver configured to receive a program provided through a first transmission path; A second receiver configured to receive a program provided through a second transmission path; A channel browsing processor extracting a thumbnail image from a program received through the second receiver, and generating a channel browser based on the extracted thumbnail image; And Analyze the programs received through the first and second transmission paths, identify the same program, and accordingly control to generate a channel browser of the program provided through the first path based on the program provided through the second transmission path. Display device characterized in that it comprises a control unit. The method of claim 16, The first receiver receives a program allocated for each frequency band, And the receiving unit receives a program allocated for each IP (Internet Protocol) address. The method of claim 17, And the control unit assigns channel information of a program provided through a first path to each program provided through the second path. The method of claim 18, The channel information is at least one of channel number information and frequency band information. The same program provided through the first path and the second path has the same channel information. The method of claim 18, And a storage unit for storing channel information respectively assigned to the program of the second path. The method of claim 18, And the channel browsing processor sorts the extracted thumbnail images in order of the given channel information. The method of claim 18, And the channel information assigned to each thumbnail image is displayed on the generated channel browser. 23. The method of claim 22, And the controller controls to receive a program corresponding to the channel information provided to the thumbnail image through the first receiver, when a specific thumbnail image is selected on the channel browser.

Images