KR101622976B1 - Apparatus for displaying image and method for operating the same - Google Patents

Abstract

The present invention relates to an image display apparatus and an operation method thereof. A method of operating an image display apparatus according to an exemplary embodiment of the present invention includes receiving an input signal, generating a plurality of thumbnail images based on the input signal, displaying a thumbnail image list including the generated thumbnail image Wherein the thumbnail image list includes a predetermined thumbnail image corresponding to a channel that does not include a video signal among the input signals.

Accordingly, the user can grasp the broadcasting signal image of the channel intuitively received, and can also intuitively recognize the information about the audio channel and the data channel not including the video signal at once.

Broadcast signal, thumbnail, voice channel, data channel

Description

TECHNICAL FIELD [0001] The present invention relates to an image display apparatus and a method of operating the same,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image display apparatus and, more particularly, to an image display apparatus and an operation method thereof that can grasp information on a channel that does not include a broadcast signal image and a video signal of an intuitively received channel will be.

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

Such digital broadcasting transmits digital video and audio signals and provides a clear screen with high data resolution and low error rate compared to analog broadcasting, advantageous for error correction, and high resolution. In addition, with the implementation of digital broadcasting, bidirectional services have become possible.

In addition to the tendency to switch to digital broadcasting, there is an increasing tendency to broadcast in response to various demands of users. In order to recognize each of the broadcasts increased by the user in the current video display device, each broadcast must be selected through channel switching, so that much time is inconvenient.

Accordingly, it is an object of the present invention to provide an image display apparatus and an operation method thereof that can grasp information on a channel that does not include a broadcast signal image and a video signal of an intuitively received channel.

 A method of operating an image display apparatus according to an exemplary embodiment of the present invention includes receiving an input signal, generating a plurality of thumbnail images based on the input signal, displaying a thumbnail image list including the generated thumbnail image Wherein the thumbnail image list includes a predetermined thumbnail image corresponding to a channel that does not include a video signal among the input signals.

According to another aspect of the present invention, there is provided an image display apparatus including a display for displaying at least one thumbnail image, a signal input unit for receiving an input signal, and a plurality of thumbnail images based on the input signal The control unit controls the thumbnail image list to include a predetermined thumbnail image corresponding to a channel that does not include a video signal among the input signals, .

According to the present invention, it is possible to grasp the broadcasting signal image of the intuitively received channel by displaying the screen including the thumbnail image list.

Also, in the case of a channel not including a video signal, it can be easily grasped by displaying it in a thumbnail image list as a preset video, and various user interfaces can be utilized.

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

The suffix "module" and " part "for components used in the following description are given merely for convenience of description, and do not give special significance or role in themselves. Accordingly, the terms "module" and "part" may be used interchangeably.

1 is an internal block diagram of an image display apparatus according to an embodiment of the present invention.

1, an image display apparatus 100 according to an exemplary embodiment of the present invention includes a first tuner 120, a second tuner 125, an external signal input unit 128, a first demodulation unit 130, A second demodulation unit 135, an analog / digital conversion unit 140, an interface unit 150, a control unit 160, a channel browsing processing unit 170, a storage unit 175, a display 180, (Not shown).

The first tuner 120 selects an RF broadcast signal corresponding to a channel selected by a user from among RF (Radio Frequency) broadcast signals received through an antenna, converts the selected RF broadcast signal into an intermediate frequency signal or a baseband video / Signal. 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 first tuner 120 may be a hybrid tuner capable of processing a digital broadcast signal and an analog broadcast signal. The analog baseband video / audio signal (CVBS 1 / SIF) output from the first tuner 120 may be directly input to the controller 160.

The first tuner 120 receives an RF broadcast signal of a single carrier according to an ATSC (Advanced Television Systems Committee) method or an RF broadcast signal of a plurality of carriers according to a DVB (Digital Video Broadcasting) It is also possible.

Similarly to the first tuner 120, the second tuner 125 selects an RF broadcast signal corresponding to a channel selected by a user from among RF (Radio Frequency) broadcast signals received through an antenna, Into an intermediate frequency signal or a baseband video / audio signal.

The second tuner 125 sequentially selects a corresponding RF broadcast signal of all broadcast channels previously stored through the channel memory function among the RF broadcast signals received through the antenna according to the present invention, Or to a baseband video / audio signal. In the embodiment of the present invention, images of other pre-stored channels are also displayed in a thumbnail form on at least a part of the screen, so that it is possible to sequentially receive RF broadcasting signals of all pre-stored channels.

For example, the first tuner 120 converts a 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 It is possible to sequentially and periodically select an RF broadcast signal (sub RF broadcast signal) or all RF broadcast signals and to convert it into an intermediate frequency signal or a base band video / audio signal.

The first demodulator 130 receives the digital IF signal DIF 1 converted by the first tuner 120 and performs a demodulation operation.

For example, when the digital IF signal DIF 1 output from the first tuner 120 is of the ATSC scheme, the first demodulator 130 performs an 8-VSB (8-Vestigal Side Band) demodulation. Also, the first demodulator 130 may perform channel decoding. For this purpose, the first demodulator 130 includes a Trellis decoder, a de-interleaver, and a Reed Solomon decoder. The first demodulator 130 performs trellis decoding, Interleaving, de-interleaving, and reed solomon decoding.

For example, when the digital IF signal DIF 1 output from the first tuner 120 is a DVB scheme, the first demodulator 130 performs CODDMA (Coded Orthogonal Frequency Division Modulation) demodulation. Also, the first demodulator 130 may perform channel decoding. To this end, the first demodulator 130 may include a convolution decoder, a deinterleaver, and a reed-solomon decoder to perform convolutional decoding, deinterleaving, and reed solomon decoding.

The external signal input unit 128 performs signal input with an external device. To this end, the external signal input unit 128 may include an A / V input / output unit and a wireless communication unit.

The external signal input unit 128 is connected to an external device such as a DVD (Digital Versatile Disk), a Blu ray, a game device, a camcorder, a computer (notebook computer), etc. and outputs an external input video signal, And transmits the input data signal to the controller 160 in the image display apparatus 100. Further, the video signal, audio signal, and data signal processed in the control unit 160 can be output to another external device.

The A / V I / O unit is provided with an Ethernet terminal, a USB terminal, a CVBS (Composite Video Banking Sync) terminal, a component terminal, and an S-video terminal (analog terminal) for inputting / ), A DVI (Digital Visual Interface) terminal, an HDMI (High Definition Multimedia Interface) terminal, an RGB terminal, a D-SUB terminal, an IEEE 1394 terminal, a SPDIF terminal, and a Liquid HD terminal.

Though not shown in the figure, various input signals input through the external signal input unit 128 may be input to a channel browsing processing unit 170 to be described later, and a thumbnail image extracting process may be performed. For example, the analog signal input through the CVBS terminal and the S-video terminal may be converted into a digital signal and input to the channel browsing processing unit 170, as described above. The digital signal inputted through the other input terminal can be directly inputted to the channel browsing processing unit 170 without analog / digital conversion. Here, the digital signal output from the external signal input unit 128 may be a stream signal. For example, an MPEG-2 TS (Digital Versatile Disc) (Transprt Stream).

The wireless communication unit can perform a wireless Internet connection. For example, WLAN (Wireless LAN) (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) .

Further, the wireless communication unit can perform short-range wireless communication with other electronic devices. For example, Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee, and the like can be used.

Meanwhile, the external signal input unit 128 may be connected to the various set-top boxes through at least one of the various terminals described above to perform input / output operations with the set-top box. For example, when the set-top box is a set-top box for an IP (Internet Protocol) TV, the video, audio, and data signals processed in the settop box for IPTV can be transmitted to the controller 160, The control unit 160 may transmit the processed signals to the IPTV set-top box. On the other hand, the video, audio, and data signals processed in the IPTV set-top box can be processed by the controller 160 via the channel browsing processor 170.

Meanwhile, the IPTV may include ADSL-TV, VDSL-TV, FTTH-TV and the like depending on the type of the transmission network. The IPTV may include a TV over DSL, a video over DSL, a TV over IP BTV), and the like. In addition, IPTV may also mean an Internet TV capable of accessing the Internet, or a full browsing TV.

The first demodulator 130 performs demodulation and channel decoding, and can output the stream signal TS 1. The stream signal TS 1 at this time may be a signal in which a video signal, an audio signal, and a data signal are multiplexed. For example, the stream signal TS 1 may be an MPEG-2 TS (Transprt Stream) in which an MPEG-2 standard video signal, Dolby AC-3 standard audio signal, etc. are multiplexed. Specifically, the MPEG-2 TS may include a header of 4 bytes and a payload of 184 bytes.

The stream signal TS1 is input to the control unit 160, and demultiplexing, signal processing, and the like are performed. In the embodiment of the present invention, before input to the control unit 160, the channel browsing processing unit 170 inputs the channel browsing process. The channel browsing operation will be described later.

Meanwhile, the first demodulating unit 130 may be separately provided according to the ATSC scheme and the DVB scheme. That is, it can be provided as an ATSC demodulation unit and a DVB demodulation unit.

The second demodulation unit 135 receives the digital IF signal DIF 2 converted by the second tuner 125 and performs a demodulation operation and outputs the stream signal TS 2. The operation of the second demodulation unit 135 will be omitted with reference to the operation of the first demodulation unit 130 described above.

On the other hand, when the signal output from the second tuner 125 is the analog baseband video signal CVBS 2, the conversion from the analog / digital converter 140 to the digital signal is required.

The analog / digital conversion unit 140 converts the input analog signal into a digital signal. If the input signal is a video signal, sampling and quantization may be performed and converted into a digital video signal DV. The converted digital signal may be an uncoded signal. The converted digital video signal DV is input to the channel browsing processing unit 170 and processed.

The interface unit 150 transmits an input signal from the user to the control unit 160 or a signal from the control unit 160 to the user. For example, the interface unit 150 may be provided with various functions such as power on / off, channel selection, screen setting, etc. from the remote control device 200 in accordance with various communication methods such as an RF (Radio Frequency) Or may transmit a signal from the control unit 160 to the remote control apparatus 200. The remote control apparatus 200 may be connected to the remote control apparatus 200 via a network.

The control unit 160 demultiplexes the input stream and processes the demultiplexed signals to generate and output a signal for video and audio output. The overall operation of the video display device 100 can be controlled.

Although not shown in the figure, the control unit 160 may include a demultiplexing unit, a video processing unit, a voice processing unit, a user input signal processing unit, and the like.

The control unit 160 demultiplexes an input stream signal, for example, an MPEG-2 TS, into video signals, audio signals, and data signals, respectively.

Also, the control unit 160 can perform image processing of the demultiplexed video signal. For example, if the demultiplexed video signal is a coded video signal, it can be decoded. Specifically, when the demultiplexed video signal is an MPEG-2 standard-coded video signal, it can be decoded by an MPEG-2 decoder. In addition, if the demultiplexed video signal is an encoded video signal of the H.264 standard according to the DMB (Digital Multimedia Broadcasting) scheme or DVB-H, it can be decoded by the H.264 decoder.

In addition, the controller 160 may process the brightness, tint, and color of the video signal.

The image signal processed by the controller 160 is input to the display 180 and displayed. It is also possible to input to an external output terminal connected to the external output device.

Also, the control unit 160 can perform the 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 MPEG-2 standard encoded speech signal, it can be decoded by an MPEG-2 decoder. In addition, if the demultiplexed speech signal is a coded voice signal of the MPEG 4 BSAC (Bit Sliced Arithmetic Coding) standard according to a terrestrial DMB (Digital Multimedia Broadcasting) scheme, it can be decoded by an MPEG 4 decoder. Also, if 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 can be decoded by the AAC decoder.

In addition, the control unit 160 can process a base, a treble, a volume control, and the like.

The voice signal processed by the control unit 160 is input to the voice output unit 185, for example, a speaker and is output as voice. It is also possible to input to an external output terminal connected to the external output device.

In addition, the control unit 160 can perform data processing of the demultiplexed data signal. For example, if the demultiplexed data signal is a coded data signal, it can be decoded. The encoded data signal may be EPG (Electronic Program Guide) information including broadcast information such as a start time and an end time of a broadcast program broadcasted on each channel. For example, the EPG information may be ATSC-PSIP (ATSC-Program and System Information Protocol) information in the case of the ATSC scheme and DVB-Service Information (DVB-SI) information in case of the DVB scheme . The ATSC-PSIP information or DVB-SI information may be information included in the above-described stream, i.e., the header (4 bytes) of the MPEG-2 TS.

In addition, the control unit 160 may perform an OSD (On Screen Display) process. Specifically, the control unit 160 displays various types of information on the screen of the display 180 based on at least one of the image-processed video signal and the data-processed data signal and the user input signal from the remote control device 200 To generate graphics for displaying graphics or text. The generated signal may be input to the display 180 together with the processed image signal and the processed data signal.

The signals generated for the graphic or text display described above may include various data such as a user interface screen of the image display apparatus 100, various menu screens, widgets, icons, and the like.

The channel browsing processing unit 170 performs a browsing process on at least one of a broadcast signal corresponding to the received channel and various input video signals input through the external signal input unit 128. Specifically, the demodulation unit 130 or 135 receives the demodulated and channel-decoded stream signal TS 1 or TS 2, receives the stream signal from the external input signal input unit 128, 140 and demultiplexes the stream signal TS 1 or TS 2 and extracts a part of the demultiplexed video signals and outputs the video signal including the extracted video signal And output a new stream signal TSa. For example, the stream signal TSa or TSb may be an MPEG 2 TS.

In addition, the channel browsing processing unit 170 can output the main stream signal TSb corresponding to the main video signal displayed in the main area of the display 180 without any processing, The sub-stream signal TSa corresponding to the sub-video signal displayed in the sub-area among the video signals displayed in the sub-area 180 may be output by performing the channel browsing process as described above.

In the embodiment of the present invention, when a partial list of the broadcast signals of a plurality of channels is extracted and re-encoded into a stream format through the channel browsing processor 170 to display the channel list on the display 180, At least a part of the images can be displayed on the screen in the form of a thumbnail. As a result, the user can intuitively know the content broadcast on the other channel.

The channel browsing processing unit 170 extracts a part of images of various external input images input through the external signal input unit 128 and re-encodes them into a stream form so that when displaying an external input list on the display 180, At least a part of the external input image from the external input device can be displayed on the screen in a thumbnail form. Accordingly, the user can intuitively know the contents input from the external input device.

On the other hand, the channel browsing processor 170 extracts a broadcasting signal image of the channel and a partial image of the external input image described above, and re-enqueues the stream into a stream form, thereby displaying a channel list and an external input list on the display 180 , It is possible to display at least a part of the broadcast signal image of the plurality of channels and the external input image from the plurality of external input devices in a thumbnail form on the screen. Accordingly, the user can intuitively know the contents input from the plurality of channels and the external input device.

The channel browsing processing unit 170 will be described later with reference to FIG.

The storage unit 175 may store a program for each signal processing and control in the control unit 160 or may store a video signal, a voice signal, and a data signal that have undergone signal processing.

In addition, the storage unit 175 may perform a function for temporarily storing video, audio, or data signals input from the external signal input unit 128.

In addition, the storage unit 175 may store the corresponding broadcast channel through the channel memory function.

The storage unit 175 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory) RAM, ROM (EEPROM, etc.), and the like.

Although the storage unit 175 is shown separately from the controller 160 in the drawing, the storage unit 175 is not limited thereto and may be included in the controller 160.

Meanwhile, the video display device 100 may reproduce and provide a file (a moving picture file, a still picture file, a music file, a document file, etc.) stored in the storage unit 175 to a user.

The display 180 converts an image signal, a data signal, an OSD signal processed by the control unit 160 or an image signal and a data signal received from the external signal input unit 128 into R, G, and B signals, respectively, . The display 180 can be implemented in various forms such as a PDP, an LCD, an OLED, a flexible display, and a 3D display. Also, the display 180 may be configured as a touch screen and used as an input device in addition to the output device.

The audio output unit 185 receives a signal processed by the control unit 160, for example, a stereo signal, a 3.1 channel signal, or a 5.1 channel signal, and outputs it as a voice. The voice output unit 185 may be implemented by various types of speakers.

The remote control device 200 transmits the user input to the interface unit 150. [ To this end, the remote control apparatus 200 can use Bluetooth, RF (radio frequency) communication, infrared (IR) communication, UWB (Ultra Wideband), ZigBee, or the like.

Further, the remote control apparatus 200 may receive a video signal, an audio signal, a data signal, and the like from the interface section 150 and output it.

Meanwhile, the remote controller 200 according to the embodiment of the present invention may be a space remote controller. The description of the spatial remote controller will be described later with reference to FIG. 3 and the following.

Though two tuners are shown in the drawing, a thumbnail image at the time of viewing a channel list, which is an embodiment of the present invention, is displayed on the screen. However, the present invention is not limited to this, It is also possible.

For example, if there is a channel list view command after receiving a broadcast signal of a selected channel through one tuner, the corresponding broadcast signals of all broadcast channels previously stored through the channel memory function are sequentially / periodically received It is possible. According to this, the channel list view can be performed as a whole view.

The video display apparatus 100 described above can be applied to a digital broadcasting of ATSC system (8-VSB system), digital broadcasting of DVB-T system (COFDM system), digital broadcasting of ISDB-T system (BST-OFDM system) (DMB) type digital broadcasting, ATSC-M / H type digital broadcasting, DVB-H (COFDM) digital broadcasting, A digital broadcasting receiver capable of receiving at least one of broadcasting, media flow-only (Digital Media), and the like. It may also be a digital broadcast receiver for cable, satellite communications, or IPTV.

Meanwhile, the video display device described in the present specification can be applied to a TV set, a mobile phone, a smart phone, a notebook computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player) .

2 is an internal block diagram of the channel browsing processing unit of FIG.

The channel browsing processing unit 170 includes a switch 205, a demultiplexing unit 210, a picture decoder 215, a DV decoder 217, a format conversion unit 220, a video encoder 230 ), And a stream encoder 240.

The switch 205 selects any one of the input streams TS 1 and TS 2 and outputs it as it is without conversion operation to the main stream TSb and transmits the remaining streams to the demultiplexer 210 . The main stream corresponds to the main video signal, and the main video signal is displayed on the display 180 in most areas. The sub stream transmitted to the other demultiplexer 210 corresponds to a sub video signal other than the main channel, and the sub video signal can be displayed in a partial area of the display 180.

This method can be performed in correspondence with the simple view function of the " video channel list "that shows only the channel list in a part of the display area 180, rather than the entire area of the display 180. Meanwhile, And displaying the list on the display 180. It is also possible to display the channel list and the external input list on the display 180 together.

The demultiplexer 210 demultiplexes the received stream signal TS1 or TS2 into a video signal, a voice signal and a data signal, respectively. The video signal of the separated signals is transmitted to the picture decoder 215, and the other audio and data signals can be transmitted to the stream encoder 240 for forming a new stream.

The picture decoder 215 demultiplexes at least part of the input video signal. Decoding can 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 picture decoder 215 can decode an image of an I picture among input image signals or decode a part of an input image signal.

The DV decoder 217 receives the digital signal DV converted by the analog / digital converter 140, and acquires a digital image.

The format conversion unit 220 converts the format of a video signal input from the picture decoder 215 or the DV decoder 217. [ For example, the size (resolution) of an input video signal can be converted. This magnitude conversion is performed so that it is shown in an appropriate size when it is shown in thumbnail form on the display 180. [

On the other hand, the format conversion unit 220 may convert image signals to different sizes according to the simple view of the "image channel list" and the entire view of the "image channel list ". For example, the size of an image shown in thumbnail form in a full view of the "image channel list" may be larger than a simple view of the "image channel list ". The simple view and the full view function described above can also be performed when displaying an external input list on the display 180 in addition to the channel list. It can also be performed when displaying the channel list and the external input list together on the display 180. [

The video encoder 230 encodes the video signal converted by the format converter 220. [ For example, the format transforming unit 220 may encode the size-converted image into JPEG or MPEG-2. The still image or the moving image to be encoded by the image encoder 230 is displayed in a thumbnail form in the display 180 in the future.

The stream encoder 230 encodes the image encoded by the image encoder 230 in a stream format. That is, the image can be re-encoded based on the image encoded by the image encoder 230 and the voice and data signals demultiplexed by the demultiplexer 210. [ The re-encoding may be performed in a multiplexing manner. The encoded stream format may be in the form of MPEG 2 TS.

In the embodiment of the present invention, at least some images of the broadcast signal image and the external input image of a plurality of channels are extracted and re-encoded through the channel browsing processing unit 170, A plurality of channel broadcast signal images and an external input image from a plurality of external input devices can be displayed on the screen in a thumbnail form. Accordingly, the user can intuitively know the content broadcasted on another channel or the content input on the external input device.

3A and 3B are diagrams showing an example of the remote control apparatus of FIG.

Referring to the drawings, a spatial remote controller 301 can be used as the remote controller of FIG.

The space remote controller 301 is one of the remote control devices 200 that can input commands to the image display device 100. In this embodiment, the spatial remote controller 301 transmits and receives signals in accordance with the RF communication standard with the image display apparatus 100. 3A, a pointer 302 corresponding to the spatial remote controller 301 may be displayed on the video display device 100. [

The user can move or rotate the space remote controller 301 up and down, left and right, and back and forth. The pointer 302 displayed on the video display device 100 corresponds to the motion of the spatial remote controller 301. [ FIG. 3B shows a bar displayed on the image display device 100 in response to the movement of the spatial remote controller 301. FIG.

As shown in FIG. 3A, when the user moves the spatial remote controller 301 to the left, the pointer displayed on the image display device 100 also moves to the left corresponding thereto. In the present embodiment, the spatial remote controller 301 has a sensor capable of discriminating a motion. Information about the motion of the spatial remote controller 301 sensed through the sensor of the spatial remote controller 301 is transmitted to the image display apparatus 100. [ The image display apparatus 100 determines the operation of the spatial remote controller 301 from the information on the motion of the spatial remote controller 301 and calculates the coordinate value of the pointer 302 corresponding thereto.

3A and 3B illustrate an example in which the pointer 302 displayed on the display 180 moves in correspondence with the up, down, left, right, or rotation of the spatial remote controller 301. Fig. The moving speed and the moving direction of the pointer 302 may correspond to the moving speed and moving direction of the spatial remote controller 301. [

In this embodiment, the pointer displayed on the video display device 100 is set to move in response to the operation of the spatial remote controller 301. [ As another example, it is possible to set a predetermined command to be inputted to the image display apparatus 100 in response to the operation of the spatial remote controller 301. That is, when moving the remote controller 301 back and forth, the size of the image displayed on the image display device 100 can be enlarged or reduced. Therefore, the present embodiment does not limit the scope of the present invention.

4 is an internal block diagram of the interface unit of FIG. 1 and the spatial remote controller of FIG. 3;

The space remote controller 301 includes a wireless communication unit 320, a user input unit 330, a sensor unit 340, an output unit 350, a power supply unit 360, a memory 370, Lt; RTI ID = 0.0 > 380 < / RTI >

The wireless communication unit 320 transmits and receives signals to and from the image display apparatus 100. The spatial remote controller 301 may include an RF module 321 capable of transmitting and receiving signals to and from the interface unit 310 of the image display apparatus 100 according to the RF communication standard. The spatial remote controller 301 may include an IR module 323 capable of transmitting and receiving signals with the interface unit 310 of the image display apparatus 100 according to the IR communication standard.

In this embodiment, the spatial remote controller 301 transmits a signal containing information on the operation of the spatial remote controller 301 to the image display device 100 through the RF module 321. [ In addition, the spatial remote controller 301 can receive the signal transmitted by the image display apparatus 100 through the RF module 321. The spatial remote controller 301 can transmit commands to the video display device 100 via the IR module 323, such as power on / off, channel change, volume change, and the like, as needed.

The user input unit 330 may include a keypad or a button. The user can input a command related to the image display apparatus 100 to the spatial remote controller 301 by operating the user input unit 330. [ When the user input unit 330 includes a hard key button, the user can input a command related to the image display apparatus 100 to the spatial remote controller 301 through the push operation of the hard key button. When the user input unit 330 has a touch screen, the user can touch a soft key of the touch screen to input a command related to the image display apparatus 100 to the space remote controller 301. [ In addition, the user input unit 330 may include various types of input means such as a scroll key, a jog key, etc., which can be operated by the user, and the present invention is not limited to the scope of the present invention.

The sensor unit 340 may include a gyro sensor 341 or an acceleration sensor 343. The gyro sensor 341 can sense information on the operation of the spatial remote controller 301. [ For example, the gyro sensor 341 can sense information about the operation of the spatial remote controller 301 on the basis of the x, y, and z axes. The acceleration sensor 341 can sense information on the moving speed of the spatial remote controller 301 and the like. The output unit 350 may output a video or audio signal corresponding to an operation to the user input unit 330 or a signal transmitted from the video display device 100. [ The user can recognize whether the user input unit 330 is operated or whether the image display apparatus 100 is controlled through the output unit 350.

For example, the output unit 350 includes an LED module 351 that is turned on when the user input unit 330 is operated or a signal is transmitted and received between the image display device 100 and the image display apparatus 100 through the wireless communication unit 320, 353, an audio output module 355 for outputting sound, or a display module 357 for outputting an image.

The power supply unit 360 supplies power to the space remote controller 301. The power supply unit 360 can reduce power waste by interrupting the power supply when the spatial remote controller 301 has not moved for a predetermined time. The power supply unit 360 can resume power supply when a predetermined key operated by the space remote controller 301 is operated.

The memory 370 may store various types of application data or the like necessary for the control or operation of the spatial remote controller 301. If the spatial remote controller 301 wirelessly transmits / receives a signal through the image display device 100 and the RF module 321, the spatial remote controller 301 and the image display device 100 transmit / receive signals through a predetermined frequency band . The control unit 380 of the spatial remote controller 301 stores information on the frequency band and the like capable of wirelessly transmitting and receiving signals to and from the video display device 100 paired with the spatial remote controller 301 in the memory 370 Can be referenced.

The control unit 380 controls various matters related to the control of the spatial remote controller 301. The control unit 380 transmits a signal corresponding to a predetermined key operation of the user input unit 330 or a signal corresponding to the operation of the spatial remote controller 301 sensed by the sensor unit 340 through the wireless communication unit 320 100 to the interface unit 310 of FIG.

The interface unit 310 of the image display apparatus 100 includes a wireless communication unit 320 capable of wirelessly transmitting and receiving a signal to and from the spatial remote controller 301 and a wireless communication unit 320 capable of transmitting and receiving the coordinate values of the pointer corresponding to the operation of the spatial remote controller 301 And a coordinate value calculation unit 315 that can calculate the coordinate value.

The wireless communication unit 320 can transmit and receive signals wirelessly with the spatial remote controller 301 through the RF module 321. And can receive signals transmitted by the spatial remote controller 301 according to the IR communication standard through the RF module 323.

The coordinate value calculator 315 corrects the camera shake or error from the signal corresponding to the operation of the spatial remote controller 301 received through the wireless communication unit 320 and outputs the coordinate value of the pointer 302 to be displayed on the display 180 (x, y) can be calculated.

The transmission signal of the spatial remote controller 301 inputted to the image display apparatus 100 through the interface unit 310 is transmitted to the controller 160 of the image display apparatus 100. The control unit 160 can determine the information about the operation of the spatial remote controller 301 and the key operation from the signal transmitted from the spatial remote controller 301 and control the image display apparatus 100 accordingly.

A block diagram of the spatial remote controller 301 among the image display apparatus 100 and the remote controller 200 shown in FIGS. 1 and 4 is a block diagram for an embodiment of the present invention. Each component of the block diagram can be integrated, added, or omitted according to specifications of the video display device 100 and the spatial remote controller 301 actually implemented. That is, two or more constituent elements may be combined into one constituent element, or one constituent element may be constituted by two or more constituent elements, if necessary. In addition, the functions performed in each block are intended to illustrate the embodiments of the present invention, and the specific operations and apparatuses do not limit the scope of the present invention.

5 is a flowchart illustrating an operation method of an image display apparatus according to an embodiment of the present invention.

Referring to the drawing, first, an input signal is received (S510).

Next, a plurality of thumbnail images are generated based on the input signals (S520), and a thumbnail image list including the generated thumbnail images is displayed on the display 180 (S530).

Here, the thumbnail image list may include a predetermined thumbnail image corresponding to a channel that does not include a video signal among the input signals. The channel that does not include the video signal may be a voice channel or a data channel. In digital broadcasting, there may be a channel that does not include a video signal, such as an audio broadcast containing only audio and a data broadcast containing only data such as text, in addition to a broadcast containing audio and video at the same time.

That is, in the case of a channel that does not include a video signal, a predetermined thumbnail image such as an icon for displaying channel characteristics, a service provider name, a channel name, a channel logo, Together with the image list. Here, the predetermined thumbnail image is not limited to the above example, and may be variously set according to the preference of the user.

Accordingly, the user can intuitively recognize not only the thumbnail image of the general channel including the video signal but also the channel information of the channel that does not include the video signal, on one screen, thereby enhancing the user's convenience.

In the case of a data broadcast without video information, it is possible to selectively display an image representative of the data broadcast in advance, that is, a thumbnail image provided by a data broadcast sender or preset by a user. It can also be represented as a moving still image, such as a moving gif.

Meanwhile, the thumbnail image list may be displayed in a part of the display.

Meanwhile, the thumbnail image based on the broadcast signal image of the received channel may be a thumbnail image corresponding to the broadcast signal of the previously stored channel. That is, the pre-stored broadcast channel can be received through the second tuner 125, converted into a thumbnail image, and displayed on the display 180 through the channel memory function. Accordingly, a thumbnail image of a channel having a channel number including the input number of the thumbnail image of the broadcast signal image of the previously stored channel may be displayed together with the corresponding channel number list.

It is also possible to display a thumbnail image list in which at least a part of the thumbnail images have been updated, on the display 180, while the thumbnail image list is displayed on the display 180. It is possible to update periodically or randomly, and it is also possible that some or all of the thumbnail images are updated. Here, the updated thumbnail image is based on the image updated by the channel browsing processor 170 described above.

On the other hand, the thumbnail images displayed in the thumbnail image list may be processed by the channel browsing processing unit 170 and extracted.

On the other hand, the displayed thumbnail image may be a still image or a moving image. Also, the displayed thumbnail image may be a currently input image or a previously stored image.

According to another aspect of the present invention, there is provided a method of operating an image display apparatus, the method including storing audio clips and timestamp information of the audio channel, And periodically or randomly updating the clip.

In addition, when a thumbnail image representing the audio channel is selected or focused, an audio clip of the corresponding channel may be reproduced. In this case, an audio clip of the selected time point may be reproduced.

Audio clips and time stamps can be stored together with the audio clips to provide users with audio clips per channel time zone. In addition, an audio clip of a voice channel for a specific past time can be provided to the user. That is, for example, by presenting an audio clip to the user two hours in advance, the user will hear it when they select the past time.

That is, not only the broadcast after the point in time when the voice channel is selected, but also the user can receive the past broadcast by reproducing the audio clip stored together with the time stamp information. Further, it is possible to reproduce the audio clip from a certain point in the past by viewing the time stamp information.

When a thumbnail image representing the audio channel is selected or focused, a progress bar indicating the progress of the audio clip is displayed together. The progress bar is moved to the spatial remote controller, The playback time can be adjusted.

When the thumbnail image including the video signal is selected as described above, the corresponding channel is displayed on the display, and the channel not including the video signal is executed according to the characteristics of the corresponding channel. In addition, a simple still image or moving image including the broadcast information may be displayed on the screen.

Meanwhile, the thumbnail image list may include a thumbnail image of an advertisement channel, and may display an advertisement image in a blank space of a thumbnail image list. In addition, when there is no video displayed on the display screen or a region occupied by the display is small when a broadcast channel having no video signal is selected, a predetermined advertisement may be displayed on a part or all of the display.

6 to 8 are diagrams illustrating various examples of screens displayed on a display according to an operation method of the image display apparatus of the present invention.

6, a screen 600 including a thumbnail image list displayed on the display 180 is displayed. In addition to the thumbnail image 610 of the general broadcast channel including the video signal, The thumbnail image 620 is replaced with a preset thumbnail image 620 and displayed.

The example of FIG. 6 is an embodiment in which a predetermined thumbnail image is displayed by an icon representing a voice channel. The size of the thumbnail images may vary depending on the setting, but it may be preferable to enlarge and display the thumbnail images if they are small at first to prevent increase in the number of channels and viewing of the channel being watched, and if there is a selection or focusing command.

If there is any one of the plurality of displayed thumbnail images, the input image screen corresponding to the selected channel is displayed on the display 180. The selection command can be selected not only by moving the cursor through the direction key of the remote control device but also by moving the pointer 605 displayed corresponding to the operation of the spatial remote control.

On the other hand, prior to the selection command, it is possible to focus any of the displayed thumbnail images. For example, if there is a focus command for any of a plurality of displayed channel numbers and a thumbnail image, the corresponding thumbnail image can be focused and displayed.

The focusing command may be performed by a direction key input of a remote controller or a pointer input of a space remote controller, and a thumbnail image focused by a direction key input or a pointer input is focused by at least one of a cursor display, a highlight display, and an enlarged display Can be displayed. When the focused thumbnail image is moved by the direction key input or the pointer input, the focused thumbnail image can be moved and displayed continuously.

On the other hand, if a thumbnail image list screen 600 including a thumbnail image is displayed on the display 180 and there is an edit command, the displayed thumbnail image can be edited.

For example, if any of the plurality of displayed thumbnail images is focused and there is an edit command, the focused thumbnail image can be edited. The editing operation can be performed in various forms such as "preference registration", "deletion registration", and "lock registration" of the focused thumbnail image.

The method may further include the step of displaying detailed program information of a corresponding channel when an information viewing command is provided for one of the thumbnail images. In this case, the program information may include at least one of a channel number, a program name, program time information, and a thumbnail image extracted at a plurality of time points.

FIG. 7 is similar to FIG. 6, but shows a screen for displaying a thumbnail image list while watching a predetermined channel.

When requesting a thumbnail image list in a state in which the broadcast signal image screen 710 of the selected screen is displayed, a simple view of the "image channel list" can be performed as shown in FIG. That is, a selected screen 710 may be displayed in a partial area of the display 180, and a thumbnail image list corresponding to a plurality of channel input signals may be displayed in another area of the display 180.

Similar to FIG. 6, a thumbnail image 710 of a general broadcast channel including a video signal and a channel that does not include a video signal are replaced with a predetermined thumbnail image 720 and displayed together.

Here, when one of the plurality of thumbnail images is selected by the pointer 705 of the spatial remote controller 301, the corresponding channel is executed. In FIG. 7, the size of the thumbnail image is enlarged and focused by the movement of the pointer 705. FIG.

FIG. 8 shows a screen 800 including a thumbnail image list including a predetermined thumbnail image 820 of a channel not including a video signal and a thumbnail image 840 of the advertisement image. The empty space of the thumbnail image list can be used as a space for displaying a thumbnail image dedicated to an advertisement to display an advertisement thumbnail image of a specific company or a manufacturer who wants to advertise as shown in FIG.

The image display apparatus and the operation method thereof according to the present invention are not limited to the configuration and method of the embodiments described above but the embodiments can be applied to all or some of the embodiments May be selectively combined.

Meanwhile, the operation method of the image display apparatus of the present invention can be implemented as a code that can be read by a processor on a recording medium readable by a processor included in the image display apparatus. The processor-readable recording medium includes all kinds of recording apparatuses in which data that can be read by the processor is stored. Examples of the recording medium readable by the processor include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and also a carrier wave such as transmission over the Internet. In addition, the processor readable recording medium may be distributed over networked computer systems so that code readable by the processor in a distributed manner can be stored and executed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the present invention.

1 is an internal block diagram of an image display apparatus according to an embodiment of the present invention.

2 is an internal block diagram of the channel browsing processing unit of FIG.

3A and 3B are diagrams showing an example of the remote control apparatus of FIG.

4 is an internal block diagram of the user input / output unit of the interface unit of FIG. 1 and the spatial remote controller of FIG.

5 is a flowchart illustrating an operation method of an image display apparatus according to an embodiment of the present invention.

6 to 8 are diagrams illustrating various examples of screens displayed on a display according to an operation method of the image display apparatus of the present invention.

Claims (18)

Receiving an input signal; Generating a plurality of thumbnail images based on the input signals; Displaying a thumbnail image list including the generated thumbnail image; And And focusing and displaying the corresponding thumbnail image by at least one of a cursor display, a highlight display, and an enlarged display when a focusing command is issued for any of the displayed thumbnail images, Wherein the thumbnail image list includes a predetermined thumbnail image corresponding to a voice channel that does not include a video signal among the input signals, Storing audio clips and time stamp information of the voice channel; Updating an audio clip of the voice channel; Further comprising: reproducing an audio clip of the channel when a thumbnail image representing the audio channel is selected, Wherein the audio clip reproducing step reproduces an audio clip at a selected time point among the time stamp information. The method according to claim 1, Wherein the input signal corresponds to a pre-stored channel. The method according to claim 1, Updating at least one of the plurality of thumbnail images; And And displaying a thumbnail image list including the updated thumbnail image. delete delete delete delete delete The method according to claim 1, Wherein the thumbnail image list includes a thumbnail image of an advertisement channel. A display in which at least one thumbnail image is displayed; A tuner for receiving an input signal; And a controller for controlling the display to display a thumbnail image list including a plurality of thumbnail images based on the input signal, Wherein the controller controls the thumbnail image list to include a predetermined thumbnail image corresponding to a voice channel that does not include a video signal among the input signals, Wherein the control unit controls the display unit to focus the corresponding thumbnail image by at least one of a cursor display, a highlight display, and an enlarged display when a focusing command is issued for any of the displayed thumbnail images, The control unit controls the audio clip of the audio channel and the time stamp information to be stored. When a thumbnail image representing the audio channel is selected, the control unit controls the audio clip of the corresponding channel to be reproduced, The audio clip at the selected time point is reproduced. 11. The method of claim 10, And a storage unit storing the pre-stored channel, Wherein the input signal corresponds to the pre-stored channel. 11. The method of claim 10, Wherein the control unit controls to display a thumbnail image list including at least one updated thumbnail image among the plurality of thumbnail images. delete delete delete delete 11. The method of claim 10, Wherein the control unit controls the display unit to display a thumbnail image list including a thumbnail image of the advertisement channel among the image signals. 11. The method of claim 10, And a channel browsing processor for extracting the thumbnail image corresponding to the input signal.

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