KR20110024127A - Image display device and operating method for the same - Google Patents

Abstract

PURPOSE: An image display device and an operation method thereof are provided to increase the convenience of a user by displaying a pointer in the center of a display region in case a specific pattern is repeated. CONSTITUTION: A coordinate is calculated based on a signal which is inputted from a space remote controller. A pointer(202) is displayed in the center of a display region in case of the calculated coordinate is located in a virtual effective region including a display region. A signal, which is inputted from a space remote controller, is received. A pointer is indicated in the center of the display region.

Description

Image Display Device and Operating Method for the Same

The present invention relates to an image display device and a method of operating the same, and more particularly, to correct an error by displaying a pointer at the center of the display area when a user moves out of a virtual effective area or when a specific pattern is repeated. The present invention relates to a video display device that can be increased and an operation method thereof.

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

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

Meanwhile, in order to operate the video display device, a remote control device separate from the video display device, for example, a remote controller, is used. As the operation of the video display device is diversified, various functions are additionally required for the remote control device. Therefore, in the video display device using a remote control device, various methods for increasing the user's convenience have been studied.

SUMMARY OF THE INVENTION An object of the present invention is to provide an image display apparatus and an operation method thereof, by correcting an error and increasing user convenience by displaying a pointer at the center of a display region when it is out of a virtual effective region or when a specific pattern is repeated. In providing.

According to an aspect of the present invention, there is provided a method of operating an image display apparatus, the method comprising: calculating coordinates based on a signal input from a spatial remote controller and a virtual effective area in which the calculated coordinates include a display area; If it is outside of the, includes displaying a pointer in the center of the display area.

In addition, the operation method of the image display device according to an embodiment of the present invention for achieving the above object, the step of receiving a signal input from the spatial remote control, and confirming the shape of the locus of the received signal and the shape of the locus If is repeated, displaying the pointer in the center of the display area.

In addition, the image display device according to an embodiment of the present invention for achieving the above object is a display for displaying a pointer on the display area and an interface unit for calculating the coordinates based on the signal received from the spatial remote control and the calculated coordinates are And a controller configured to display the pointer in the center of the display area when it corresponds to the outside of the virtual effective area including the display area.

In addition, the image display device according to an embodiment of the present invention for achieving the above object, a display for displaying a pointer on the display area and the interface unit receiving a signal from the spatial remote control and the shape of the trajectory of the signal, If the shape of the trajectory is repeated, the control unit for displaying the pointer in the center of the display area.

According to the present invention, the position error caused by the movement near the display area boundary of the spatial remote control or the sensor error, the motion recognition error, etc. can be corrected, thereby increasing user convenience and reliability of using the spatial remote control.

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

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

Referring to FIG. 1, an image display apparatus 100 according to an exemplary embodiment of the present invention may include an image / audio processor 101, an interface unit 150, a storage unit 160, a display 170, and an audio output unit ( 175 and the controller 180.

The video / audio processor 101 processes an input video signal or an audio signal to output an image or an audio signal to the display 170 and the audio output unit 175 of the video display device 100. To this end, the video / audio processor 101 may include a signal input unit 110, a demodulator 120, and a signal processor 140. In addition, the signal input unit 110 may include a tuner unit 111, an A / V input unit 112, a USB input unit 113, and a wireless signal input unit 114.

The tuner 111 selects an RF broadcast signal corresponding to a channel selected by a user from among RF (Radio Frequency) broadcast signals received through an antenna, and converts the selected RF broadcast signal into an intermediate frequency signal or a baseband video or audio signal. To convert. For example, if the selected RF broadcast signal is a digital broadcast signal, it is converted into a digital IF signal (DIF). If the analog broadcast signal is converted into an analog baseband video or audio signal (CVBS SIF). That is, the tuner 111 may process a digital broadcast signal or an analog broadcast signal. The analog baseband video or audio signal CVBS SIF output from the tuner 111 may be directly input to the signal processor 140.

In addition, the tuner 111 may receive an RF broadcast signal of a single carrier according to an Advanced Television System Committee (ATSC) scheme or an RF broadcast signal of a plurality of carriers according to a digital video broadcasting (DVB) scheme.

According to another embodiment of the present invention, the image display apparatus 100 may include at least two tuner units. When the second tuner unit includes at least two tuner units, the second tuner unit selects an RF broadcast signal corresponding to a channel selected by a user from among RF broadcast signals received through an antenna, similarly to the first tuner unit, and intermediates the selected RF broadcast signal. Converts to a frequency signal or baseband video or audio signal.

In addition, the second tuner may sequentially select the RF broadcast signals of all the broadcast channels stored through the channel memory function among the received RF broadcast signals and convert them into intermediate frequency signals or baseband video or audio signals. The second tuner may periodically perform conversion of all broadcast channels.

Accordingly, the image display apparatus 100 may provide images of various channels converted through the second tuner in the form of thumbnails while displaying the image of the broadcast signal converted through the first tuner. In this case, the first tuner converts the main RF broadcast signal selected by the user into an intermediate frequency signal or a baseband video or audio signal, and the second tuner selects all RF broadcast signals except for the main RF broadcast signal sequentially / periodically. This may be converted into an intermediate frequency signal or a baseband video or audio signal.

The demodulator 120 receives the digital IF signal DIF converted by the tuner 111 and performs a demodulation operation. For example, when the digital IF signal output from the tuner unit 111 is an ATSC scheme, the demodulator 120 performs 8-VSB (8-Vestigal Side Band) demodulation. As another example, when the digital IF signal output from the tuner 111 is a DVB scheme, the demodulator 120 performs CODDMA demodulation.

Also, the demodulation unit 120 may perform channel decoding. To this end, the demodulator 120 includes a trellis decoder, a de-interleaver, and a reed solomon decoder to perform trellis decoding, deinterleaving, Solomon decoding can be performed.

The demodulation unit 120 may perform demodulation and channel decoding, and then output a stream signal TS. In this case, the stream signal may be a signal multiplexed with a video signal, an audio signal, or a data signal. For example, the stream signal may be an MPEG-2 TS (Transprt Stream) 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 output from the demodulator 120 may be input to the signal processor 140. After the signal processor 140 performs demultiplexing and signal processing, the signal processor 140 outputs an image to the display 170 and outputs an audio signal to the audio output unit 175.

 In addition, in the case of an image display device having at least two tuner units, a corresponding number of demodulators may be provided. The demodulator may be provided separately according to the ATSC scheme and the DVB scheme.

In addition, the signal input unit 110 may connect the external device to the image display device 100. The signal input unit 110 is connected to an external device such as a digital versatile disk (DVD), a Blu-ray (Blu ray), a game device, a camcorder, a computer (laptop), and the like to input an external input video signal, an external input audio signal, and an external input data. The signal is transmitted to the signal processor 140 in the image display apparatus 100. In addition, the video signal, the audio signal, and the data signal processed in the image display apparatus 100 may be output to another external device.

The A / V input unit 112 of the signal input unit 110 may input a CVBS (Composite Video Banking Sync) terminal, a component terminal, and an S-video to input video and audio signals of an external device to the video display device 100. Terminals (analog), DVI (Digital Visual Interface) terminal, HDMI (High Definition Multimedia Interface) terminal, RGB terminal, D-SUB terminal, IEEE 1394 terminal, SPDIF terminal, Liquid (HD) HD terminal and the like. The analog signal input through the CVBS terminal and the S-video terminal may be converted into a digital signal and input to the signal processor 140. The digital signal input through other input terminals may be input to the signal processor 140 without an analog / digital conversion process.

The USB input unit 113 may input a video and audio signal through a USB terminal.

The wireless signal inputter 114 may connect the image display apparatus 100 to a wireless network. The image display apparatus 100 may be connected to the wireless Internet through the wireless signal input unit 114. For wireless Internet access, wireless LAN (Wi-Fi), wireless broadband (Wibro), world interoperability for microwave access (Wimax), high speed downlink packet access (HSDPA) communication standards, and the like may be used. In addition, the wireless signal input unit 114 may perform short-range wireless communication with other electronic devices. For example, it may be networked with other electronic devices according to Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee communication standards.

In addition, the signal input unit 110 may connect the image display apparatus and 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, or data signal of the set-top box for the IP TV may be transmitted to the signal processor so as to enable bidirectional communication. The signals processed at can be transferred to the set-top box for IP TV.

Meanwhile, the above-described IPTV may mean ADSL-TV, VDSL-TV, FTTH-TV, etc. according to the type of transmission network, and include TV over DSL, Video over DSL, TV overIP (TVIP), and Broadband TV ( BTV) and the like. In addition, IPTV may be meant to include an Internet TV, a full browsing TV that can be connected to the Internet.

The signal processor 140 may demultiplex the received stream signal, for example, MPEG-2 TS, and divide the received stream signal into a video signal, an audio signal, and a data signal, respectively. In addition, the signal processor 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 signal processor 140 may process brightness, tint, and color of the image signal. The image signal processed by the signal processor 140 is displayed on the display 170. In addition, the signal processor 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 signal processor 140 may process a base, treble, volume control, and the like.

The voice signal processed by the signal processor 140 is output to the voice output unit 175. In addition, the signal processor 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 Progtam 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 signal processor 140 may perform On Screen Display (OSD) processing. In detail, the signal processor may be configured to display various types of information on the screen of the display 170 based on the image processed image signal, at least one of the data processed data signal, and a user input signal input through the remote controller 200. Can be displayed as Graphic or Text.

The display storage unit 160 may store a program for processing and controlling each signal in the controller 180, or may store a signal processed video signal, an audio signal, or a data signal. In addition, the storage unit 160 may perform a function for temporarily storing an image, audio, or data signal input to the signal input unit 110.

The storage unit 160 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.). The image display apparatus 100 may reproduce a file (video file, still image file, music file, document file, etc.) stored in the storage unit 160 and provide the same to the user.

The controller 180 controls the overall operation of the image display apparatus 100. The controller 180 may receive a signal transmitted from the remote controller 200 through the interface unit 150. The controller 180 determines a command input by the user to the remote control apparatus 200 through the received signal and controls the image display apparatus 100 to correspond thereto. For example, when a user inputs a predetermined channel selection command, the controller 180 controls the tuner 111 to input the selected channel through the signal input unit 110. In addition, the signal processor 140 is controlled to process the video signal and the audio signal of the selected channel. In addition, the signal processor 140 is controlled so that the channel information selected by the user can be output through the display 170 or the audio output unit 175 together with the processed video signal and the audio signal.

As another example, the user may input another type of video or audio output command through the remote control apparatus 200. That is, the user may want to watch the video signal of the camera or camcorder input through the USB input unit 113 instead of the broadcast signal. In this case, the controller 180 processes the video signal or the audio signal input through the USB input unit 113 of the signal input unit 110 through the signal processor 140 and through the display 170 or the audio output unit 175. The video / audio processor 101 may be controlled to be output.

In addition to the command input through the remote control apparatus 200, the controller 180 may determine the user command inputted by the user input unit 155 formed on the image display apparatus 100 and control the image display apparatus 100 to correspond thereto. Can be. For example, the user may input an on / off command, a channel change command, a volume change command, etc. of the image display device 100 through the user input unit 155. The user input unit 155 may be formed of a button or a key formed on the image display apparatus 100. The controller 180 may determine whether the user input unit 155 is manipulated and control the image display apparatus 100 accordingly.

2A and 2B are perspective views of an image display apparatus 100 and a spatial remote control 201 capable of inputting a command to the image display apparatus according to an embodiment of the present invention.

The spatial remote control 201 is one of the remote control apparatus 200 that can input a command to the image display apparatus 100. In this embodiment, the spatial remote control 201 transmits and receives a signal with the image display device 100 according to the RF communication standard.

As illustrated in FIG. 2A, a pointer 202 corresponding to the spatial remote control 201 may be displayed on the image display apparatus 100.

The user may move or rotate the space remote control 201 up, down, left, and right. The pointer 202 displayed on the image display apparatus 100 corresponds to the movement of the spatial remote control 201.

FIG. 2B illustrates a bar in which the pointer displayed on the image display apparatus 100 moves in response to the movement of the spatial remote control 201. In FIG. 2B, when the user moves the spatial remote control 201 to the left side, the pointer displayed on the image display apparatus 100 also moves to the left side correspondingly. In this embodiment, the spatial remote control 201 is provided with a sensor that can determine the movement. Information about the movement of the spatial remote controller 201 detected by the sensor of the spatial remote controller 201 is transmitted to the image display apparatus 100.

The image display apparatus 100 determines the operation of the spatial remote control 201 from the information about the movement of the spatial remote control 201 and calculates a coordinate value of the pointer 202 corresponding thereto.

2A and 2B illustrate an example in which the pointer 200 displayed on the display 170 moves in response to up, down, left, or right rotation of the spatial remote control 201. The moving speed or the moving direction of the pointer 200 may correspond to the moving speed or the moving direction of the spatial remote control 201. In the present embodiment, the pointer displayed on the image display apparatus 100 is set to move in response to the operation of the spatial remote control 201. As another example, a predetermined command may be input to the image display apparatus 100 in response to the operation of the spatial remote control 201. That is, when moving back and forth of the spatial remote control 201, the size of the image displayed on the image display apparatus 200 may be enlarged or reduced. Therefore, this embodiment does not limit the scope of the present invention.

3 is an internal block diagram of an interface unit 150 of the spatial remote control 201 and the image display apparatus 100 according to an embodiment of the present invention.

As shown, the spatial remote control 201, the wireless communication unit 220, the user input unit 230, sensor unit 240, output unit 250, power supply unit 260, storage unit 270, and control It may be configured to include a portion 280.

The wireless communication unit 220 transmits and receives a signal with the image display device 100. In the present exemplary embodiment, the spatial remote controller 201 may include an RF module 221 capable of transmitting and receiving a signal with the interface unit 150 of the image display apparatus 100 according to an RF communication standard. In addition, the spatial remote controller 201 may include an IR module 223 capable of transmitting and receiving signals with the interface unit 150 of the image display apparatus 100 according to an IR communication standard.

In the present embodiment, the spatial remote control 201 transmits a signal containing information on the operation of the spatial remote control 201 to the image display apparatus 100 through the RF module 221. In addition, the spatial remote controller 201 may receive a signal transmitted from the image display apparatus 100 through the RF module 221. In addition, the spatial remote controller 201 may transmit a command regarding power on / off, channel change, volume change, etc. to the image display device 100 through the IR module 223 as necessary.

The user input unit 230 may be configured as a keypad or a button. The user may input a command related to the image display apparatus 100 to the spatial remote controller 201 by manipulating the user input unit 230. When the user input unit 230 includes a hard key button, the user may input a command related to the image display apparatus 100 to the spatial remote control 201 through a push operation of the hard key button. When the user input unit 230 includes a touch screen, the user may input a command related to the image display apparatus 100 to the spatial remote control 201 by touching a soft key of the touch screen. In addition, the user input unit 230 may include various kinds of input means that a user can operate, such as a scroll key or a jog key, and the present embodiment does not limit the scope of the present invention.

The sensor unit 240 may include a gyro sensor 241 or an acceleration sensor 243. The gyro sensor 241 may sense information about the operation of the spatial remote control 201. For example, the gyro sensor 241 may sense information about the operation of the spatial remote controller 201 based on the x, y, and z axes. The acceleration sensor 243 may sense information about a moving speed of the spatial remote control 201.

The output unit 250 may output an image or audio signal corresponding to the manipulation of the user input unit 230 or corresponding to the signal transmitted from the image display apparatus 100. The user may recognize whether the user input unit 230 is manipulated or whether the image display apparatus 100 is controlled through the output unit 250.

For example, the output unit 250 may include a LED module 251 that is turned on when the user input unit 230 is manipulated or a signal is transmitted and received with the image display device 100 through the wireless communication unit 220, and a vibration module generating vibration. 253, a sound output module 255 for outputting sound, or a display module 257 for outputting an image.

The power supply unit 260 supplies power to the space remote control 201. The power supply unit 260 may reduce power waste by stopping power supply when the space remote control 201 does not move for a predetermined time. The power supply unit 260 may resume power supply when a predetermined key provided in the space remote control 201 is operated.

The storage unit 270 may store various types of programs, application data, and the like required for controlling or operating the spatial remote controller 201. If the spatial remote control 201 wirelessly transmits and receives a signal through the image display apparatus 100 and the RF module 221, the spatial remote control 201 and the image display apparatus 100 transmit and receive signals through a predetermined frequency band. do. The control unit 280 of the spatial remote control unit 201 stores and refers to information on a frequency band for transmitting and receiving a signal wirelessly with the image display apparatus 100 paired with the spatial remote control unit 201 in the storage unit 270. Can be.

The controller 280 controls various items related to the control of the spatial remote controller 201. The controller 280 transmits a signal corresponding to a predetermined key manipulation of the user input unit 230 or a signal corresponding to an operation of the spatial remote controller 201 sensed by the sensor unit 240 through the wireless communication unit 220. 100 may be transmitted to the interface unit 150.

The interface unit 150 of the image display apparatus 100 calculates coordinate values of a wireless communication unit 151 capable of transmitting and receiving signals to and from the spatial remote controller 201 and a pointer corresponding to the operation of the spatial remote controller 210. A coordinate value calculator 154 can be provided.

The interface unit 150 may transmit and receive a signal wirelessly with the spatial remote controller 201 through the RF module 152. In addition, through the IR module 153, the spatial remote control unit 201 may receive a signal transmitted according to the IR communication standard.

The coordinate value calculator 154 corrects a hand shake or an error from a signal corresponding to an operation of the spatial remote controller 201 received through the wireless communication unit 151 to display the coordinate value of the pointer 202 to be displayed on the display 170. x, y) can be calculated.

The spatial remote control 201 transmission signal input to the image display apparatus 100 through the interface unit 150 is transmitted to the controller 180 of the image display apparatus 100. The controller 180 may determine the information on the operation and the key operation of the spatial remote control 201 from the signal transmitted from the spatial remote control 201 and control the image display apparatus 100 accordingly.

As another example, the spatial remote controller 201 may calculate a pointer coordinate value corresponding to the operation of the spatial remote controller and output the pointer coordinate value to the interface unit 150 of the image display apparatus 100. In this case, the interface unit 150 of the image display apparatus 100 may transmit the information about the received pointer coordinate value to the controller 180 without a separate camera shake or error correction process.

1 and 3 is a block diagram of the spatial remote control 201 of the image display apparatus 100 and the remote control apparatus 200 is a block diagram for an embodiment of the present invention. Each component of the block diagram may be integrated, added, or omitted according to the specifications of the image display apparatus 100 and the spatial remote control 201 that are 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.

4 is a diagram referred to for describing a method of operating an image display apparatus.

As shown in FIG. 4, when the spatial remote controller is used for a predetermined time, an error (e) between the position of the spatial remote controller 201 in the current state or the position 204 where the user wants the pointer to be displayed and the pointer position 202 on the display area is displayed. May occur.

The horizontal and vertical movement amounts on the display area are calculated using the signal received from the spatial remote controller, and the calculated movement amount is added to the previous pointer position to calculate new coordinates for displaying the pointer. The pointer is displayed on the display area corresponding to the coordinates thus calculated.

The cause of the error is sensor error of sensors such as gyro sensor and acceleration sensor, integration error by sensor itself error, sensor output value variation according to spatial remote control status, movement method, speed, etc. when moving the same distance. Since the above errors continue to accumulate, an error (e) may occur between the position of the spatial remote control 201 or the pointer region 202 after a predetermined time elapses.

In addition, when the spatial remote control moves in and out of the boundary of the display area, that is, the edge of the screen of the image display device, the position error may be further increased. The pointer moves only within the display screen and cannot go out of the screen. When the pointer is located at the end of the screen of the image display apparatus, the pointer maintains its position even when the spatial remote control moves out of the screen of the image display apparatus. Therefore, the pointer position, the operation of the spatial remote control, and the delay time may occur. In addition, when the spatial remote control moves in the opposite direction, that is, the center of the screen, the pointer is moved and displayed together, but the position error generated may be maintained. Therefore, when the spatial remote control repeatedly travels around the boundary of the display area, this position error may accumulate and become larger.

FIG. 5 is a flowchart illustrating a method of operating an image display apparatus according to an exemplary embodiment of the present invention, and FIG. 6 is a view referred to for explaining the method of FIG. 5.

Referring to the drawings, the interface unit 150 calculates coordinates based on the signal input from the spatial remote controller. (S510) The controller 180 determines in which region the calculated coordinates are included. As a result, the pointer is displayed in a different location.

First, it is determined whether the calculated coordinates correspond to the outside of the virtual effective area including the display area (S520). The valid area 600 includes all the display areas larger than the display area 620 as shown in FIG. It is set to include. 6 also shows the maximum and minimum points of the effective area 600 and the display area 620. More preferably, the center of the effective area 600 and the display area 620 have the same aspect ratio, that is, the effective area 600 is larger than the display area 620, and the effective area 600 is the display area 620. It will be desirable to set the form in an enlarged proportional proportion.

 If the calculated coordinates fall outside the effective area 600, the controller 180 displays the pointer 202 at the center of the display area 620. (S530) The effective area 600 is as described above. It is larger than the display area 620. Therefore, the pointer cannot be displayed out of the display area, but if the spatial remote control is operating in an area outside the effective area 600, the spatial remote control can move infinitely. Therefore, the correlation between the movement of the pointer and the motion of the spatial remote control may be reduced, and the precise motion correspondence may not be achieved. For example, if the user operates the spatial remote control at the same point, as the position indicated by the spatial remote control becomes far from the center, the image display device may respond with a large operation even with a small operation.

Accordingly, in the image display apparatus operating method according to an embodiment of the present invention, when the calculated coordinates fall outside the effective area 600, the pointer 202 is forcibly displayed in the center of the display area 620. In addition, it may receive a signal from the spatial remote control and perform a corresponding operation. Since the pointer is displayed in the center of the display area, the user can easily check the position of the pointer, and the spatial remote control can be rearranged and used in the center of the display area, thereby correcting the position error.

The controller may reset the calculated coordinates to coordinates corresponding to the center, and display the pointer in the center of the display area based on the reset coordinates. In addition to the display position of the pointer, it is possible to reset the reference coordinate value for later pointer movement within the image display apparatus and use it for the coordinate calculation.

The controller may display the pointer in the center and maintain the pointer in an inactive state for a predetermined time. That is, although the pointer is displayed and visible, even if the spatial remote control is moved, the pointer of the remote controller does not correspond to the predetermined time and is fixed to the center without moving. This gives the user time to rearrange the spatial remote control to the center of the display area.

In this case, when the predetermined time elapses or before the user moves the spatial remote control to the pointer position and aligns it and then presses a certain button or acts on a specific pattern, it becomes inactive from active to active. You can switch.

On the other hand, the controller 180 determines whether the calculated coordinates are included in the display area 620, and when included in the display area (S540), the pointer is located in an area corresponding to the calculated coordinates. (S550)

Since the movement in the display area 620 is less likely to cause an error, the pointer is displayed on the corresponding area of the display area as calculated coordinates.

On the other hand, if the calculated coordinates are included between the boundary of the effective area and the display area, that is, the remaining area 640 except for the display area in the effective area, the calculation of the display area The pointer is displayed in the area closest to the coordinate. Therefore, although the virtual pointer coordinates are moving in the effective area, the coordinates at which the pointer is displayed may be fixedly displayed at the end of the display area.

The method of calculating the coordinates inside the display area and the method of calculating the coordinates in the remaining area except the display area in the effective area may be the same.

If the coordinates calculated according to the operation of the spatial remote control are moving coordinates and the coordinates to be displayed in the display area are the display coordinates, the moving coordinates of the pointer are continuously changing values in the active area, and the city coordinates are Pointer icons are coordinates that are actually shown, and are the same as the movement coordinates in the display area. However, when the pointer icon is out of the display area, the value is limited for each direction (X, Y). That is, when the virtual pointer moves out of the left edge of the display area, the X coordinate of the city coordinate is fixed to Xs _min , which is the X coordinate of the edge, and is shown as if the pointer is attached to the left edge of the display area. The same applies to the up, down and right directions. When moving out of the active area, the pointer position is forcibly set to be in the center of the display screen and may be changed to an inactive state. Such a coordinate calculation method can be used for both the relative coordinate method in which the movement amount is added to the existing coordinates in the effective area and the absolute coordinate method in which the coordinates themselves are reflected.

7 is a flowchart illustrating a method of operating an image display device according to an exemplary embodiment of the present invention, and FIG. 8 is a view referred to for explaining the method of FIG. 7.

Referring to the drawings, first, a signal input from the spatial remote controller is received through the interface unit 150. (S710) The controller 180 checks the shape of the locus of the received signal (S720), and repeats the form of the locus. In operation S730, a pointer is displayed at the center of the display area. In operation S740, the repeated trajectory is, for example, an operation of repeatedly drawing a round or an ellipse several times, for example, a shaking motion that repeatedly reciprocates between the left and right points. And the like.

That is, the spatial remote control operation of the predetermined pattern can be set to the pointer reset mode for moving the pointer position to the center of the display. The user may re-use the pointer and align the spatial remote control again by repeating a specific operation at any time when the spatial remote control is used for a long time or when there is an error.

The controller may display the pointer in the center of the display area when the shape of the trajectory is repeated more than a threshold within a preset time. If you shake the spatial remote control a certain number, the pointer is forcibly positioned in the center of the display area. In order to be distinguished from the general operation of reciprocating the spatial remote control to select items on the display area, a time limit and a repeat limit are set. When the predetermined round trip number N is satisfied within the time T1, the cursor is moved to the center of the screen. It is accepted as a command to sort. Therefore, the case can be prevented from being confused with the operation of a general spatial recon.

The controller may display the pointer at the center and maintain the pointer in an inactive state (S750). That is, although the pointer is displayed and displayed, the controller does not correspond to the signal of the spatial remote controller for a predetermined time even when the spatial remote controller is moved. Therefore, the pointer is fixed at the center without moving, giving the user time to rearrange the spatial remote control to the center of the display area. Alternatively, from the moment the pointer is positioned in the center of the display area, the pointer can be kept still until the spatial remote controller does not move for a predetermined time, which is also to give the pointer position the time to adjust the spatial remote controller position.

In this case, when the predetermined time elapses or before the elapsed time, the user moves the spatial remote control to the pointer position and aligns it, and then receives an activation command, the user may switch from the inactive state to the active state again. The activation command may be set by pressing a specific button or by operating a remote control of a specific pattern.

According to the present invention, the position error caused by the movement near the display area boundary of the spatial remote control or the sensor error, the motion recognition error, etc. can be corrected, thereby increasing user convenience and reliability of using the spatial remote control.

In the drawings, an arrow is illustrated as an example of a pointer, but is not limited thereto, and may be represented by a cursor, an image, an icon, or the like.

Meanwhile, the present invention can be embodied as processor readable codes on a processor readable recording medium included in the image display device. 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 also include a carrier wave such as transmission through the Internet. The processor-readable recording medium can also be distributed over network coupled computer systems so that the processor-readable code is stored and executed in a distributed fashion.

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

1 is an internal block diagram of a video display device according to an embodiment of the present invention.

2A and 2B are perspective views of a spatial remote controller capable of inputting commands to an image display apparatus and an image display apparatus according to an embodiment of the present invention.

3 is an internal block diagram of an interface unit of a spatial remote controller and an image display apparatus according to an exemplary embodiment of the present invention.

4 is a diagram referred to for describing a method of operating an image display apparatus.

5 is a flowchart illustrating a method of operating an image display apparatus according to an exemplary embodiment.

FIG. 6 is a diagram referred to describe the operation method of FIG. 5.

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

FIG. 8 is a diagram referred to describe the operation method of FIG. 7.

Claims (20)

In the video display device operation method using a spatial remote control, Calculating coordinates based on a signal input from the spatial remote controller; And And displaying the pointer at the center of the display area when the calculated coordinates fall outside the virtual effective area including the display area. The method of claim 1, If the calculated coordinates are included in the display area, displaying the pointer in an area corresponding to the calculated coordinates. The method of claim 1, And displaying the pointer in a region closest to the calculated coordinates in the display area when the calculated coordinates are included in the remaining area other than the display area in the valid area. . The method of claim 1, The calculating of the coordinates may include the method of calculating the coordinates in the display area and the method of calculating the coordinates in the remaining area excluding the display area in the effective area. The method of claim 1, And the pointer is displayed based on the coordinates of resetting the calculated coordinates to correspond to the center. The method of claim 1, And maintaining the pointer in an inactive state for a predetermined time. In the video display device operation method using a spatial remote control, Receiving a signal input from the spatial remote control: Checking the shape of the locus of the received signal; And And displaying the pointer at the center of the display area when the shape of the trajectory is repeated. The method of claim 7, wherein And the pointer is displayed at the center of the display area when the shape of the trajectory is repeated over a threshold within a predetermined time. The method of claim 7, wherein And maintaining the pointer in an inactive state. 10. The method of claim 9, And when the activation command is received or when a predetermined time elapses, changing the pointer to an activation state. In a video display device using a spatial remote control, A display for displaying a pointer in a display area; An interface unit for calculating coordinates based on a signal received from the spatial remote controller; And And a controller which displays the pointer at the center of the display area when the calculated coordinates fall outside the virtual effective area including the display area. The method of claim 11, And the control unit displays the pointer in an area corresponding to the calculated coordinates when the calculated coordinates are included in the display area. The method of claim 11, The controller may be further configured to display the pointer in an area closest to the calculated coordinates in the display area when the calculated coordinates are included in the remaining area except the display area. . The method of claim 11, And the controller calculates coordinates in the same manner as in the display area and in the remaining area except the display area in the effective area. The method of claim 11, And the controller is configured to reset the calculated coordinates to coordinates corresponding to the center and to display the pointer based on the reset coordinates. The method of claim 11, And the control unit displays the pointer at the center and maintains the pointer in an inactive state for a predetermined time. In a video display device using a spatial remote control, A display for displaying a pointer in a display area; An interface unit for receiving a signal from the spatial remote controller; And And a controller configured to check a form of the trace of the signal and to display the pointer at the center of the display area when the form of the trace is repeated. The method of claim 17, And the controller is configured to display the pointer at the center of the display area when the shape of the trajectory is repeated over a threshold within a predetermined time. The method of claim 17, And the control unit maintains the pointer in an inactive state after displaying the pointer in the center. The method of claim 19, And the controller changes the pointer to an activated state when an activation command is received or a predetermined time elapses.

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