KR102105459B1 - Image display device and operation method of the image display device - Google Patents

Abstract

Disclosed is a video display device and a method of operating the video display device. According to embodiments of the present invention, a wireless communication unit connected to an external input device, a sensing unit detecting a first gesture input of a user existing within a predetermined range based on the main body, and in the broadcast mode, the first gesture input When a signal corresponding to the second gesture input is received from the connected external input device within the sensed and preset time, based on the condition corresponding to the detected first gesture input and direction information included in the received signal It comprises a control unit for controlling to change the broadcast channel.

Description

IMAGE DISPLAY DEVICE AND OPERATION METHOD OF THE IMAGE DISPLAY DEVICE}

The present invention relates to a video display device and a video display device operating method, and more particularly, to a video display device and a video display device operation method capable of recognizing a user's gesture input.

The video display device includes both a device for receiving and displaying broadcasts, a device for recording and playing video, and a device for recording and playing audio. The image display device may be, for example, a television, a computer monitor, a projector, a tablet, navigation, a digital broadcast receiving device (Digital Television), or the like.

As the function of the video display device is diversified, in addition to the function of broadcasting or playing music or video files, a multimedia player type having multiple functions such as taking a picture or a video, receiving a game, or receiving a broadcast Is being implemented as Furthermore, in recent years, video display devices have been implemented as smart devices (for example, smart televisions). Accordingly, the video display device may operate in conjunction with a mobile terminal or a computer as well as the execution of the Internet. In addition, the video display device has received digital broadcasting and is in charge of the function of a server in a home network environment or a ubiquitous environment.

On the other hand, in recent years, in viewing a broadcast through such a video display device, the user selectable channels have exceeded hundreds. As a result, it is often difficult to quickly and easily move to a channel desired by a user by sequentially increasing or decreasing the channel number using a key provided in the video display device or an external input device connected to the video display device.

Accordingly, embodiments of the present invention provide a video display device and a method of operating the video display device implemented so that movement to a desired broadcast channel or a broadcast channel belonging to a specific group can be effectively switched through a user's complex gesture input. It has a purpose.

An image display device according to an embodiment of the present invention includes: a wireless communication unit connected to an external input device; A sensing unit configured to detect a user's first gesture input within a predetermined range based on the main body; In the broadcast mode, when a signal corresponding to the second gesture input is received from the connected external input device within a preset time when the first gesture input is sensed, the condition corresponding to the detected first gesture input and the received It comprises a control unit for controlling to change the broadcast channel based on the direction information included in the signal.

In one embodiment, the signal corresponding to the second gesture is any one of a scroll signal, a pointing signal, and a key input signal, and the controller controls to channel up or down the broadcast channel according to the direction information It is characterized by.

In one embodiment, the controller enters a preferred channel mode in response to the first gesture input being recognized as a preset first shape, and changes a broadcast channel in units of a pre-registered preferred channel according to the direction information. It characterized in that the control.

In one embodiment, when the third gesture input is recognized, in the broadcast mode, the control unit registers a broadcast channel corresponding to screen information currently output on the display unit in a map of a preferred channel, and a broadcast channel registered as a preferred channel When the fourth gesture input is recognized while the screen information corresponding to the is output to the display unit, the broadcast channel is controlled to be released from the map of the preferred channel.

In one embodiment, the control unit is characterized in that when at least one event of registration of the preference channel to the map and release from the preference channel map occurs, it is characterized in that the control to output a notification corresponding to the generated event.

In one embodiment, the controller enters a group channel mode based on EPG information in response to the first gesture input being recognized as a preset second shape, and classifies based on the EPG information based on the direction information. It is characterized in that the control to change the broadcast channel in a group unit.

In one embodiment, the control unit detects a broadcast channel representing a group or a recognized numeric band corresponding to the recognized number in response to the first gesture being recognized as representing a specific number, and the direction information. It is characterized by controlling to change a broadcast channel within the group or to change a broadcast channel in units of the recognized numeric band based on the basis.

In one embodiment, the controller determines whether a predetermined initial gesture input is detected before the first gesture input is detected, and determines whether or not the first gesture input is recognized according to the determination result.

In one embodiment, when the first gesture input is recognized, the control unit displays a first icon corresponding to the first gesture input on an area of the display unit, and corresponds to the second gesture input within a preset time. When the signal is received and recognized, it is characterized in that the first icon is changed to a second icon to be displayed.

In addition, the video display device according to an embodiment of the present invention, a wireless communication unit for connecting with an external input device; A sensing unit that detects a user's voice command; In a broadcast mode, when a signal corresponding to a second gesture is received from the connected external input device within a preset time when the voice command is detected, conditions corresponding to the detected voice command and a direction included in the received signal It characterized in that it comprises a control unit for controlling to change the broadcast channel based on the information.

In one embodiment, the control unit is characterized in that if the voice command is a control command for entering the preferred channel mode, it is characterized in that the control to change the broadcast channel in the unit of the preferred channel registered in accordance with the direction information.

In one embodiment, if the voice command is a control command for entering the group channel mode, controlling the controller to change the broadcast channel in group units classified based on EPG information based on the direction information. It is characterized by.

In one embodiment, when the voice command is recognized as a specific number of voices, the control unit detects a group corresponding to the recognized number or a broadcast channel representing the recognized number band, and based on the direction information, the group It is characterized in that it is controlled to change to a broadcast channel belonging to or to change the broadcast channel while skipping in units of the number band.

In addition, an operation method of a video display device according to an embodiment of the present invention includes the steps of sensing a first gesture input of a user existing within a predetermined range based on a main body; In the broadcast mode, receiving a signal corresponding to the second gesture input from an external input device that is recognized and connected within a predetermined time period; And changing a broadcast channel based on conditions corresponding to the first gesture input and direction information included in the received signal.

Accordingly, according to the video display device and the video display device operation method according to an embodiment of the present invention, a movement to a desired broadcast channel or a broadcast channel belonging to a specific group and a channel moving unit can be effectively performed through a user's complex gesture input. It provides user convenience.

In addition, according to the operation method of the video display device and the video display device according to an embodiment of the present invention, by using the input by the user action and the input using the external input device when the channel is moved, through the input by the user action Intuitive control is possible and the effect of more easily configuring keys to an external input device is provided.

1 is a block diagram showing a video display device and an external input device related to the present invention.
FIG. 2 is a block diagram showing the external input device of FIG. 1 in detail.
3 is a conceptual diagram showing the interaction between the video display device and the external input device related to the present invention.
4 is an exemplary flowchart for describing a method of operating an image display device according to an embodiment of the present invention.
5 is a conceptual diagram illustrating a complex gesture input for switching broadcast channels in units of preferred channels according to an embodiment of the present invention.
6A and 6B are conceptual diagrams illustrating registering or releasing a current broadcast channel as a preferred channel through gesture input according to an embodiment of the present invention.
7 is a conceptual diagram illustrating a complex gesture input for switching broadcast channels in group channel units according to an embodiment of the present invention.
8 is a conceptual diagram illustrating a complex gesture input for switching broadcast channels in a specific number band unit according to an embodiment of the present invention.
9 is a conceptual diagram illustrating a method for displaying a start gesture associated with a complex gesture input for channel switching and a method for displaying whether a complex gesture input is recognized according to an embodiment of the present invention.
10 is a conceptual diagram illustrating a case in which a composite gesture input for channel switching is performed by a user's voice command according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings in order to explain in detail that a person skilled in the art to which the present invention pertains can easily implement the technical spirit of the present invention. However, the present invention may be implemented in various different forms, and is not limited to the embodiments described herein. In addition, in order to clearly describe the present invention in the drawings, parts irrelevant to the description are omitted, and like reference numerals are assigned to similar parts throughout the specification.

In the present specification, the video display device includes both a device for receiving and displaying a broadcast, a device for recording and reproducing a video, and a device for recording and reproducing audio.

1 is a block diagram showing a video display device 100 and an external input device 200 related to the present invention. The video display device 100 includes a tuner 110, a demodulator 120, a signal input / output unit 130, an interface unit 140, a control unit 150, a storage unit 160, a display unit 170 and audio It includes an output unit 180. The external input device 200 may be a separate device from the video display device 100 or may be included as a component of the video display device 100.

Referring to FIG. 1, the tuner 110 selects an RF broadcast signal corresponding to a channel selected by a user among radio frequency (RF) broadcast signals received through an antenna, and the RF broadcast signal is an intermediate frequency signal or a baseband image. / Convert to a voice signal. For example, if the RF broadcast signal is a digital broadcast signal, the tuner 110 converts the RF broadcast signal into a digital IF signal (DIF). On the other hand, if the RF broadcast signal is an analog broadcast signal, the tuner 110 converts the RF broadcast signal into an analog baseband video / audio signal (CVBS / SIF). As such, the tuner 110 may be a hybrid tuner capable of processing digital broadcast signals and analog broadcast signals.

The digital IF signal (DIF) output from the tuner 110 is input to the demodulator 120, and the analog baseband image / audio signal (CVBS / SIF) output from the tuner 110 is input to the control unit 160. You can.

The tuner 110 may receive a single carrier RF broadcast signal according to an Advanced Television Systems Committee (ATSC) method or a multiple carrier RF broadcast signal according to a Digital Video Broadcasting (DVB) method.

Although one tuner 110 is illustrated in the drawing, the present invention is not limited thereto, and the image display device 100 may include a plurality of tuners, for example, first and second tuners. In this case, the first tuner may receive the first RF broadcast signal corresponding to the broadcast channel selected by the user, and the second tuner may sequentially or periodically receive the second RF broadcast signal corresponding to the pre-stored broadcast channel. . The second tuner can convert the RF broadcast signal into a digital IF signal (DIF) or an analog baseband video / audio signal (CVBS / SIF) in the same way as the first tuner.

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

When the digital IF signal DIF output from the tuner 110 is an ATSC system, the demodulator 120 performs 8-VSB (8-Vestigal Side Band) demodulation. 8-VSB (8-Vestigal Side Band) demodulation is demodulation by the residual sideband modulation method of single carrier amplitude modulation using the National Television System Committee (NTSC) frequency band. At this time, the demodulator 120 may perform channel decoding such as trellis decoding, de-interleaving, and Reed Solomon decoding. To this end, the demodulator 120 may include a Trellis decoder, a de-interleaver, and a Reed Solomon decoder.

When the digital IF signal DIF output from the tuner 110 is a DVB method, the demodulator 120 performs Coded Orthogonal Frequency Division Modulation (COFDMA) demodulation. At this time, the demodulator 120 may perform channel decoding such as convolution decoding, deinterleaving, Reed Solomon decoding, and the like. To this end, the demodulator 120 may include a convolution decoder, a deinterleaver and a Reed-Solomon decoder.

The demodulator 120 may perform demodulation and channel decoding as described above and then output a stream signal TS. In this case, the stream signal may be a video signal, an audio signal or a data signal multiplexed. For example, the stream signal TS may be an MPEG-2 TS (Transprt Stream) multiplexed with an MPEG-2 standard video signal or a Dolby AC-3 standard audio signal. Here, the MPEG-2 TS may include a header of 4 bytes and a payload of 184 bytes.

The signal output from the demodulator 120 may be input to the control unit 170 to perform demultiplexing, image / audio signal processing, and the like.

The signal input / output unit 130 is available for external devices, for example, DVD (Digital Veratile Disk), Blu-ray, game devices, cameras, camcorders, computers (laptops), set-top boxes, mobile devices, smart phones, etc. It is connected wirelessly to perform signal input and output operations. To this end, an A / V input / output unit for connection with a wired network and a wireless communication unit for connection with a wireless network may be included.

The A / V input / output unit is an Ethernet terminal, USB terminal, CVBS (Composite Video Banking Sync) terminal, component terminal, S-video terminal (analog), DVI (Digital Visual Interface) terminal, HDMI (High Definition Multimedia Interface) terminal , MHL (Mobile High-definition Link) terminal, RGB terminal, D-SUB terminal, IEEE 1394 terminal, SPDIF terminal, Liquid (Liquid) HD terminal, and the like. The digital signal input through these terminals may be transmitted to the controller 150. At this time, the analog signal input through the CVBS terminal and the S-video terminal may be converted into a digital signal through an analog-to-digital converter (not shown) and transmitted to the controller 150.

The wireless communication unit may perform wireless Internet access. For example, the wireless communication unit performs wireless Internet access using Wireless LAN (WLAN) (Wi-Fi), Wireless broadband (Wibro), World Interoperability for Microwave Access (Wimax), and High Speed Downlink Packet Access (HSDPA). can do. Also, the wireless communication unit may perform short-range wireless communication with other electronic devices. For example, the wireless communication unit may perform short-range wireless communication using Bluetooth, radio frequency identification (RFID), infrared data association (IrDA), ultra wideband (UWB), or ZigBee. have.

The signal input / output unit 130 may access a predetermined web page through a wired / wireless network to transmit / receive data to / from the corresponding server. In addition, content or data provided by a content provider or a network operator, for example, a movie , It can receive content such as advertisements, games, VODs, broadcast signals, and related information. The signal input / output unit 130 may receive firmware update information and update files provided by a network operator through a wired / wireless network, and may select and receive a desired application from among open applications in the air. have.

The signal input / output unit 130 may transmit the video signal, audio signal, and data signal provided from the external device to the control unit 150. In addition, the signal input / output unit 130 may transmit video signals, audio signals, and data signals of various media files stored in an external storage device such as a memory device or a hard disk to the controller 150. Also, the signal input / output unit 130 may transmit the video signal, the audio signal, and the data signal processed by the control unit 150 to the external device or another external device.

More specifically, the signal input / output unit 130 may be connected to a set-top box, for example, an IPTV (Internet Protocol TV) set-top box, through at least one of the various terminals described above to perform signal input and output operations. . In addition, the signal input / output unit 130 may transmit the video signal, the audio signal, and the data signal processed by the IPTV set-top box to the control unit 150 to enable two-way communication, and transmit the signals processed by the control unit 150. It can also be delivered back to an IPTV set-top box. Here, the IPTV may include ADSL-TV, VDSL-TV, FTTH-TV, etc., which are classified according to a transmission network, and TV over DSL, Video over DSL, TV over IP (TVIP), Broadband TV (BTV), etc. It may include, and may further include an Internet TV with full Internet access, a full browsing TV.

The digital signal output from the signal input / output unit 130 may also include a stream signal TS. As described above, the stream signal TS may be a signal in which a video signal, an audio signal, and a data signal are multiplexed.

The interface unit 140 may transmit a signal input by the user to the control unit 150 or a signal transmitted from the control unit 150 to the user.

The interface unit 140 may transmit a user input signal input to a power key, a channel key, a volume key, a setting key, etc., to the control unit 150. In addition, the interface unit 140 may be provided with a sensor unit (not shown) for sensing a user's gesture, a user's location, and a touch. To this end, the sensor unit may include a touch sensor, a voice sensor, a position sensor, a motion sensor, a gyro sensor, and the like. In such a case, the interface unit 140 may transmit an input signal input from the sensor unit to the control unit 150 or transmit a signal from the control unit 150 to the sensor unit.

The interface unit 140 receives an input signal input by the user for power control from an external input device 200, for example, a space remote control, channel selection, screen setting, or the signal processed by the control unit 160 Can be transmitted to the external input device 200. In this case, the interface unit 140 and the external input device 200 may be connected by wire or wireless.

In addition, the interface unit 140 may receive personal information from the external input device 200 and / or receive web server information being accessed through such personal information. For example, when the mobile terminal approaches the external input device 200 within a predetermined distance and performs near field communication (NFC), the external input device 200 may receive personal information stored in the mobile terminal. . Here, the personal information may be information required to log in to a predetermined account to access an electronic device or use a service.

The control unit 150 controls the overall operation of the image display device 100. Specifically, the control unit 150 demultiplexes the stream signal TS received through the tuner 110, the demodulator 120, and / or the signal input / output unit 130, or processes the demultiplexed signals, Signals for video or audio output can be generated and output. For example, the controller 150 may control the tuner 110 to tune an RF broadcast signal corresponding to a channel selected by a user or a pre-stored channel.

The image signal processed by the control unit 150 may be transmitted to the display unit 170 to output an image corresponding to the maritime image signal, and the audio signal processed by the control unit 150 may be transmitted to the audio output unit 180 Can output sound. In addition, the video signal and / or the audio signal processed by the controller 150 may be input to the output device of the external device through the signal input / output unit 130.

The controller 150, for example, to demultiplex the stream signal TS or process the demultiplexed signals to generate and output a signal for video or audio output, although not shown in the figure, the demultiplexer, It may include an image processing unit, an on-screen display (OSD) generation unit, an audio processing unit, a data processing unit, a channel browsing processing unit, and the like.

The demultiplexing unit (not shown) demultiplexes the input stream signal TS. Demultiplexing, for example, when an MPEG-2 stream signal (TS) is input, it can be demultiplexed and separated into video signals, audio signals, and data signals, respectively. Here, the stream signal TS may be output from the tuner 110, the demodulator 120, and / or the signal input output 130, as described above.

The image processing unit (not shown) may perform image processing, eg, decoding, of the demultiplexed image signal. In more detail, the image processing unit decodes an MPEG-2 standard encoded video signal using an MPEG-2 decoder, and uses a H.264 decoder to perform DMB (Digital Multimedia Broadcasting) or DVB-H (Digital Video Broadcast-). Handheld) can decode H.264-encoded video signals. In addition, the image processor may process the image so that the brightness, tint, and color of the image signal are adjusted. In addition, the image processing unit may scale the demultiplexed image signal to be output from the display unit 170. The image signal processed by the image processing unit may be transmitted to the display unit 170 or may be transmitted to an external output device (not shown) through an external output terminal.

The OSD generator (not shown) may generate an OSD signal according to a user input or by itself. In more detail, the OSD generating unit graphically displays various information on the screen of the display unit 170 based on, for example, at least one of a video signal and a data signal or an input signal received from the external input device 200. ) Or text to display. The generated OSD signal may include various data such as a user interface screen of the video display device 100, various menu screens, widgets, icons, and pointers corresponding to pointing signals transmitted from the external input device 200. Also, the generated OSD signal may include a 2D object or a 3D object.

The controller 150 may mix the OSD signal generated by the above-described OSD generation unit and the decoded image signal processed by the image processing unit. The mixed video signal may change the frame rate of the video through a frame rate converter (FRC). In addition, the mixed video signal can be output by changing the format of the video signal through a formatter, separating the 2D video signal and the 3D video signal for 3D video display, or converting the 2D video signal into a 3D video signal. .

The speech processor (not shown) may perform, for example, decoding a speech signal for a demultiplexed speech signal. In more detail, the speech processor may decode an MPEG-2 standard encoded speech signal using an MPEG-2 decoder, and use an MPEG 4 decoder to conform to the MPEG 4 Bit Sliced Arithmetic Coding (BSAC) standard according to the DMB method. The encoded audio signal can be decoded, and an AAC (Advanced Audio Codec) standard MPEG 2 encoded audio signal can be decoded according to a satellite DMB method or a DVB-H (Digital Video Broadcast-Handheld) method using an AAC decoder. You can. In addition, the voice processor may process base, treble, volume control, and the like. The voice signal processed by the voice processing unit may be delivered to the audio output unit 180, for example, a speaker or may be transmitted to an external output device.

The data processing unit (not shown) may perform data processing, eg, decoding, on the demultiplexed data signal. Here, the data signal may include electronic program guide (EPG) information including broadcast information such as start time and end time of a broadcast program broadcast on each channel. The EPG information may include, for example, ATSC-PSIP (ATSC-Program and System Information Protocol) information in the ATSC scheme, and DVB-SI (DVB-Service Information) information in the DVB scheme. Here, ATSC-PSIP information or DVB-SI information may be included in a header (4 bytes) of an MPEG-2 stream signal (TS).

The channel browsing processing unit (not shown) receives a stream signal TS output from the demodulator 120 or a stream signal TS output from the signal input / output unit 130, extracts an image therefrom, and generates a thumbnail image. You can. The generated thumbnail image may be input as it is or as encoded. In such a case, the controller 150 may display a thumbnail list including a plurality of thumbnail images on the display unit 170 using the input thumbnail image. At this time, the thumbnail images in the thumbnail list may be displayed on the entire area of the display unit 170 or may be displayed on a partial area of the display unit 170 in a simple view method. In addition, thumbnail images in the thumbnail list may be updated sequentially.

Meanwhile, the controller 150 may also perform signal processing for an analog baseband video / audio signal (CVBS / SIF). For example, the analog baseband video / audio signal (CVBS / SIF) input to the controller 150 may be an analog baseband video / audio signal output from the tuner 110 or the signal input / output unit 130. The control unit 150 processes the input analog baseband video / audio signal (CVBS / SIF), displays the signal-processed video signal through the display unit 170, and the signal-processed audio signal is an audio output unit ( 180).

In addition, the controller 150 may control the operation of the video display device 100 by a user command input through the signal input / output unit 130 or the interface unit 140 or an internal program. More specifically, the controller 150 receives device information from the signal input / output unit 130 or the interface unit 140, device information of adjacent external devices around the video display device 100, and channel information that can be remotely controlled by other external devices. Based on frequency information or code information, etc., according to personal information from the external input device 200, it is determined whether each external device or the like is connected, and controls to display an object indicating that the external device is connected on the display 170 can do.

Also, the control unit 150 may display a 3D object for at least one object displayed on the display unit 170. Here, the object may be, for example, at least one of a connected web screen (newspaper, magazine, etc.), EPG (Electronic Program Guide), and various other menus, widgets, icons, still images, videos, and texts.

In addition, the controller 150 may each or a combination of images captured by the photographing unit (not shown), signals sensed by the sensing unit (not shown), or input signals transmitted from the external input device 200, respectively. Can detect.

In addition, the controller 150 may recognize the user's location based on the image captured from the photographing unit (not shown). For example, a distance (z-axis coordinate) between the user and the image display device 100 may be grasped, and in addition, an x-axis coordinate and a y-axis coordinate in the display unit 170 corresponding to the user location may be grasped. .

The storage unit 160 may store a program for signal processing and control of the control unit 150, and related to a predetermined broadcast channel through a channel memory function such as a signal processed image signal, an audio signal and a data signal, and a channel map. You can also store information, etc. The storage unit 160 includes a flash memory, a hard disk, a multimedia card micro type, a card type memory (for example, SD or XD memory, etc.), and random access (RAM). memory; RAM, static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM), magnetic memory, magnetic disk, optical disk It may include at least one storage medium.

Also, the storage unit 160 may store IR format key codes for controlling other external devices, and may also store an IR format key database of a plurality of external devices.

The display unit 170 displays the image signal, data signal, OSD signal, or image signal received from the signal input / output unit 130 or the interface unit 140 processed by the control unit 150, RGB, etc. Convert to a signal to generate a driving signal, and through this, outputs an image. The display unit 170 includes a plasma display panel (PDP), a liquid crystal display (LCD), a thin film transistor liquid crystal display (Thin Film Transistor-Liquid Crystal Display: TFT-LCD), an organic light emitting diode (Organic) Light Emitting Diode (OLED), flexible display (flexible display), 3D display (3D display), electronic ink display (e-ink display), etc.

For example, when the display unit 170 is a 3D display, it may be implemented by an additional display method or a single display method for viewing a 3D image. The single display method is a display unit 170 that can realize a 3D image without a separate display, for example, without glasses, for example, a lenticular method, a parallax barrier, or the like. This can be applied. In addition, as the additional display method, a 3D image may be implemented using a 3D viewing device in addition to the display unit 170. For example, a method such as a head mounted display (HND) type or a glasses type may be applied.

In addition, when the display unit 170 is implemented as a touch screen equipped with a touch sensor, it may perform functions of an input device in addition to an output device.

The touch sensor may be configured to convert a change in pressure applied to a specific portion of the display unit 170 or a capacitance generated in a specific portion of the display unit 170 into an electrical input signal. The touch sensor may be configured to detect not only the position and area where the touch object is touched on the touch sensor, but also the pressure at the time of the touch. Here, the touch object is an object that applies a touch to the touch sensor, and may be, for example, a finger, a touch pen or a stylus pen, a pointer, and the like. If there is a touch input to the touch sensor, the corresponding signal (s) is sent to the touch controller. The touch controller processes the signal (s) and then transmits corresponding data to the control unit. Accordingly, the control unit 150 can know which area of the display unit 170 is touched, and the like.

The audio output unit 180 receives an audio signal processed by the controller 150, for example, a stereo signal or a 5.1 channel signal, and outputs sound corresponding thereto. To this end, the audio output unit 180 may be implemented as various types of speakers.

The sensing unit 190 may receive an audio signal and / or a video signal from the outside, and detect a user's gesture using the received signal. To this end, a camera (not shown), a microphone (not shown), an infrared sensor (not shown), and the like may be included.

A camera (not shown) photographs a user, and generally one is provided, but two or more may be provided according to the use environment. Image information captured through the camera may be input to the controller 150, and accordingly, the controller 150 may detect a user's gesture based on the captured image.

The microphone (not shown) may receive a predetermined voice command from the user. The microphone (not shown) may include various noise removal algorithms to remove noise generated in the process of inputting an external sound signal.

An infrared sensor (not shown) may be used to recognize the user's eyes and track the user's gaze.

In addition, the video display device 100 may include a video communication unit (not shown) including a camera (not shown) and a microphone (not shown). The controller 150 may process the video information captured by the camera and the audio information collected by the microphone and transmit the signal to the video communication device of the other party through the signal input / output unit 130 or the interface 140.

The power supply unit (not shown) supplies corresponding power throughout the video display device 100. In particular, the controller 150, which can be implemented in the form of a system on chip (SOC), a display unit 170 for displaying images, and an audio output unit 180 for audio output, are supplied with power. You can.

To this end, the power supply unit (not shown) may include a converter (not shown) that converts AC power into DC power. On the other hand, for example, when the display unit 170 is implemented as a liquid crystal panel having a plurality of backlight lamps, an inverter (not shown) capable of PWM operation is further provided for driving luminance or dimming. You may.

The external input device 200 is wired or wirelessly connected to the interface unit 140 to transmit an input signal generated according to a user input to the interface unit 140. The external input device 200 may include a remote controller (eg, a space remote controller), a mouse, a keyboard, a wheel, and the like. The remote controller may transmit an input signal to the interface unit 140 through Bluetooth, RF communication, infrared communication (IR communication), UWB (Ultra Wideband), ZigBee method, or the like. When the external input device 200 is implemented as a spatial remote controller in particular, it is possible to generate a predetermined input signal by sensing the operation of the main body.

Meanwhile, the video display device 100 may be implemented as a fixed digital broadcast receiver or a mobile digital broadcast receiver.

When the video display device 100 is implemented as a fixed digital broadcast receiver, ATSC (8-VSB) digital broadcasting using a single carrier, terrestrial DVB-T (COFDM) using multiple carriers It can be implemented to receive at least one of digital broadcasting, ISDB-T method (BST-OFDM method) digital broadcasting that allows different broadcasting channels to be used according to a user's authority.

When the video display device 100 is implemented as a mobile digital broadcasting receiver, terrestrial DMB digital broadcasting, satellite DMB digital broadcasting, ATSC-M / H digital broadcasting, DVB-H (Digital Video Broadcast-Handheld) ) Can be implemented to receive at least one of digital broadcasting of the media type and digital broadcasting of the media flow link only.

Meanwhile, the video display device 100 may also be implemented as a digital broadcast receiver for cable, satellite communication, and IPTV.

Also, the video display device 100 described above may be applied to a mobile terminal. The mobile terminal includes a mobile phone, a smart phone, a laptop computer, a terminal for digital broadcasting, a personal digital assistants (PDA), a portable multimedia player (PMP), navigation, a slate PC, a tablet PC ( tablet PC), an ultrabook, and the like.

When the video display device is used as a mobile terminal, in addition to the above-described configuration, a wireless communication unit may be further added. The wireless communication unit enables wireless communication between a mobile terminal and a wireless communication system or between a mobile terminal and a network in which the mobile terminal is located.

To this end, the wireless communication unit may include at least one of a broadcast reception module, a mobile communication module, a wireless Internet module, a short-range communication module, and a location information module.

The broadcast receiving module may receive a broadcast signal and / or broadcast related information from a broadcast management server through a broadcast channel.

Here, the broadcast channel may include a satellite channel, a terrestrial channel, and the like. In addition, the broadcast management server may refer to a server that generates and transmits broadcast signals and / or broadcast-related information or a server that receives previously generated broadcast signals and / or broadcast-related information and transmits them to a terminal. In addition, the broadcast signal may include a TV broadcast signal, a radio broadcast signal, and a data broadcast signal, as well as a broadcast signal in which a data broadcast signal is combined with a TV broadcast signal or a radio broadcast signal. .

Here, the broadcast-related information may mean information related to a broadcast channel, a broadcast program, or a broadcast service provider, and such broadcast-related information may be provided through a mobile communication network. In addition, broadcast-related information may exist in various forms. For example, it may exist in the form of an Electronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB) or an Electronic Service Guide (ESG) of Digital Video Broadcast-Handheld (DVB-H).

The broadcast receiving module includes, for example, DMB-T (Digital Multimedia Broadcasting-Terrestrial), DMB-S (Digital Multimedia Broadcasting-Satellite), MediaFLO (Media Forward Link Only), DVB-H (Digital Video Broadcast-Handheld). , DVB-CBMS (Convergence of Broadcasting and Mobile Service), OMA-BCAST (Open Mobile Alliance-BroadCAST), CMMB (China Multimedia Mobile Broadcasting), MBBMS (Mobile Broadcasting Business Management System), ISDB-T (Integrated Services Digital Broadcast- Terrestrial) can be used to receive digital broadcast signals. Of course, the broadcast receiving module may be configured to be suitable for other broadcasting systems as well as the above-described digital broadcasting system.

The broadcast signal and / or broadcast-related information received through the broadcast receiving module may be stored in a memory.

The mobile communication module transmits and receives wireless signals to and from at least one of a base station, an external terminal, and a server on a mobile communication network. The wireless signal may include various types of data according to transmission and reception of a voice call signal, a video call signal, or a text / multimedia message.

The mobile communication module is configured to implement a video call mode and a voice call mode. The video call mode refers to a call state while viewing the other party's video, and the voice call mode refers to a call state without viewing the other party's video. The mobile communication module is formed to transmit and receive at least one of voice and video to implement a video call mode and a voice call mode.

The wireless Internet module is a module for wireless Internet access, and may be built in or external to a mobile terminal. Wireless Internet technologies include Wireless LAN (WLAN), Wireless Fidelity (WiFi) Direct, Digital Living Network Alliance (DLNA), Wireless broadband (Wibro), World Interoperability for Microwave Access (Wimax), High Speed Downlink Packet Access (HSDPA), GSM, CDMA, WCDMA, and Long Term Evolution (LTE) may be used.

The short-range communication module refers to a module for short-range communication. Bluetooth (Bluetoot), Radio Frequency Identification (RFID), Infrared Data Association (IrDA), UWB (Ultra Wideband), ZigBee, Near Field Communication (NFC), Wi-Fi Direct Etc. can be used.

The location information module is a module for obtaining a location of a mobile terminal, and a typical example thereof is a Global Position System (GPS) module or a Wireless Fidelity (WiFi) module.

FIG. 2 is a block diagram showing the external input device 200 shown in FIG. 1 in detail. The external input device 200 includes a wireless communication unit 210, a user input unit 220, a sensing unit 230, an output unit 240, a power supply unit 250, a storage unit 260, and a control unit 270, etc. It can be made including.

Referring to FIG. 2, the wireless communication unit 210 transmits a signal to the video display device 100 or receives a signal from the video display device 100. To this end, the wireless communication unit 210 may include an RF module 211 and an IR module 212. The RF module 211 is connected to the interface unit 140 of the video display device 100 according to the RF communication standard to transmit and receive signals, and the IR module 212 interfaces the video display device 100 according to the IR communication standard. The unit 140 may transmit and receive signals. For example, the wireless communication unit 210 may transmit a signal including information such as movement of the external input device 200 to the image display device 100 through the RF module 211.

Meanwhile, the external input device 200 further includes an NFC module (not shown) for short-range magnetic field communication with an external device, and the web being accessed by personal information or personal information through short-range magnetic field communication with a predetermined external device. Server information and the like may be received and the received information may be transmitted to the image display device 100 through the RF module 211 or the IR module 212.

In addition, the external input device 200 is an interface unit of the video display device 100 using Bluetooth, infrared (IR) communication, UWB (Ultra Wideband), ZigBee, short-range magnetic field communication (NFC), etc. The signal may be transmitted to 140.

The external input device 200 may receive an image, audio or data signal output from the interface unit 140 of the video display device 100. Then, the external input device 200 may display or output the audio from the external input device 200 based on the received video, audio, or data signal.

In addition, the external input device 200 may receive device information of another external device, channel information capable of remote control of another external device, frequency information or code information, etc., from nearby external devices. Based on the information, remote control may be performed by assigning a channel, frequency, or code to the corresponding external device.

The user input unit 220 may include, for example, a keypad, a key button, a touch screen, scroll keys, jog keys, and the like. The user may input a control command related to the image display device 100 by operating the user input unit 220. The control command may be input, for example, by a user pushing a hard key button of the user input unit 200. In addition, such a command may be input as, for example, a user touching a soft key of the touch screen when the user input unit 220 has a touch screen.

The user input unit 220 may include, for example, an OK key, a menu key, a four-way key, a channel adjustment key, a volume adjustment key, a back key, a home key, and the like. have. An OK key (not shown) can be used when selecting a menu or item, and a menu key (not shown) can be used to display a predetermined menu. Also, the four-way key (not shown) may be used when moving the pointer or indicator displayed on the display unit 170 of the image display device 100 up, down, left, and right. In addition, the channel adjustment key (not shown) can be used when adjusting the channel up and down, and the volume adjustment key (not shown) can be used when adjusting the volume up and down. In addition, a back key (not shown) can be used when moving to a previous screen, and a home key (not shown) can be used when moving to a home screen.

The confirmation key can be implemented by adding a scroll function. To this end, the confirmation key may be implemented in the form of a wheel key. That is, when the user pushes the confirmation key up / down or left / right, it can be used as a corresponding menu or item selection, and when the provided wheel is rotated up / down, a video display device in a direction corresponding to the rotation of the wheel The screen output on the display unit 170 of 100 may be scrolled or switched to the next list page. For example, when only a part of the screen to be output is displayed on the screen displayed on the display unit 170, when the wheel of the confirmation key is scrolled to search for a screen of a desired portion, a screen that is not currently output on the display unit 170 The area may be output on the display unit 170. As another example, when the list page is displayed on the display unit 170, scrolling the wheel of the confirmation key may display the previous page or the next page of the current page displayed on the display unit 170.

In addition, by using the scroll function of the confirmation key, the channel can be up or down as much as the channel corresponds to the rotation of the wheel when the broadcast channel is switched, and the volume can be adjusted as the volume corresponds to the rotation of the wheel when the volume is adjusted. It can be output by increasing the volume or by reducing the volume.

In addition, the scroll function of the confirmation key may be implemented as a separate key.

The sensing unit 230 may include a gyro sensor 231 and an acceleration sensor 232. The gyro sensor 231 may detect spatial movement of the external input device 200 based on the x-axis, y-axis, and z-axis. The acceleration sensor 232 may detect the movement speed of the external input device 200.

In addition, the sensing unit 230 may further include a distance measuring sensor, whereby it is possible to sense the distance from the display unit 170.

The output unit 240 outputs information corresponding to the operation of the user input unit 220 and information corresponding to the transmission signal of the image display device 100. The user may recognize an operation state of the user input unit 220 or a control state of the image display device 100 through the output unit 240. The output unit 240 outputs an LED module 241 that lights up, a vibration module 242 that generates vibration, and sound in response to a manipulation of the user input unit 220 or a signal transmitted and received through the wireless communication unit 210. A sound output module 243 and a display module 244 for outputting an image may be provided.

The power supply unit 250 supplies power to various electronic elements of the external input device 200. When the external input device 200 is not moved for a predetermined time, the power supply unit 250 may stop power supply to reduce waste of power, and supply power when a predetermined key of the external input device 200 is operated. Can resume.

The storage unit 260 may store various programs, applications, and frequency band information related to control or operation of the external input device 200. In addition, the storage unit 260 may store IR format key codes for controlling other external devices with an IR signal, and may store an IR format key database of a plurality of external devices.

The control unit 270 controls overall matters related to the control of the external input device 200. The control unit 270 may transmit a signal corresponding to a predetermined key operation of the user input unit 220 to the image display device 100 through the communication unit 210. In addition, the control unit 270 may transmit a signal corresponding to the movement of the external input device 200 detected by the detection unit 230 to the image display device 100 through the wireless communication unit 210, and the image display device ( 100) may calculate the coordinate value of the pointer corresponding to the movement of the external input device 200.

3 is a conceptual diagram showing the interaction between the video display device 100 and the external input device 200 related to the present invention. Here, a TV receiver is shown as an example of the image display device 100 for purposes of explanation, and a space remote controller is shown as an example of the external input device 200.

Referring to FIG. 3, the external input device 200 may transmit and receive signals to and from the video display device 100 according to an RF communication standard. A control menu may be displayed on the screen of the video display device 100 according to the control signal of the external input device 200. To this end, the external input device 200 may include a plurality of buttons, and generate an external input signal according to a user's button operation. Also, the external input device 200 may transmit information on the movement of the external input device 200 detected in the 3D space through the detection unit to the image display device 100.

In FIG. 3, in response to the user moving or rotating the external input device 200 up / down, left / right, forward / backward, the screen of the video display device 100 is moved by the movement of the external input device 200. The corresponding pointer 101 is displayed. The external input device 200 may be referred to as a spatial remote controller because the corresponding pointer 101 is moved and displayed on the screen of the image display device 100 according to the movement in 3D space.

Information on the movement of the external input device 200 detected through the sensing unit of the external input device 200 is transmitted to the image display device 100. Then, the video display device 100 may calculate the X and Y coordinates of the corresponding pointer from information related to the movement of the external input device 200. The video display device 100 may display the pointer 101 corresponding to the calculated coordinates.

On the other hand, when a specific button provided on the external input device 200 is pressed and the user moves the external input device 200 away from the screen of the video display device 100, it corresponds to the pointer 101 displayed on the screen. The selected area in the screen to be zoomed in (zoom out) may be displayed (enlarged). On the contrary, when the user moves the external input device 200 closer to the screen of the video display device 100, the selected area in the screen corresponding to the pointer 101 displayed on the screen is zoomed out (zoom in) to reduce (enlarge) ) Can be displayed.

Meanwhile, recognition of up / down, left / right movement of the external input device 200 may be excluded while a specific button provided in the external input device 200 is pressed. That is, when the external input device 200 moves to move away from or approach the screen of the image display device 100, the up, down, left, and right movements are not recognized, and only the forward / backward movements can be recognized.

In addition, the moving speed of the pointer 101 displayed on the screen of the video display device 100, the moving direction, and the screen scrolling speed according to the movement may be determined according to the moving speed and / or the moving direction of the external input device 200. have. Here, the pointer 101 may be formed of objects of various shapes in addition to the arrow shape illustrated in FIG. 3, for example, shapes of points, cursors, prompts, and outlines.

In an embodiment according to the present invention, the video display device 100 may detect a user's first gesture input within a predetermined range based on the main body, for example, through the sensing unit 190. In addition, in the broadcast mode, the controller 150 of the video display device 100 recognizes the first gesture input and corresponds to the second gesture input from an external input device connected to the video display device 100 within a preset time. When a signal is received, a broadcast channel may be changed based on a condition corresponding to the detected first gesture input and direction information included in the received signal.

According to this, it is possible to provide a convenient control environment to the user because the movement to the desired broadcast channel or a broadcast channel belonging to a specific group and the channel movement unit can be more effectively performed through the user's complex gesture input.

Hereinafter, with reference to FIG. 4, according to an embodiment of the present invention, a method of switching a broadcast channel through a user's complex gesture input will be described. In this regard, FIG. 4 is an exemplary flowchart for explaining a method of operating an image display device according to an embodiment of the present invention.

First, as shown in FIG. 4, the controller 150 of the video display device 100 according to an embodiment of the present invention may detect a user's first gesture input within a predetermined range based on the main body ( S410).

To this end, the video display device 100 detects the user's location and the user's gesture through the sensing unit 190 and transmits the detected result to the control unit 150.

Here, the detection unit 190 may be a variety of sensor modules capable of sensing various devices or subjects capable of imaging, such as digital cameras, CMOS cameras, CCD (Charged Coupled Device) cameras, the cameras, etc. For example, it may be disposed at or around the boundary area of the display unit 170.

Specifically, the sensing unit 190 photographs an image related to the gesture of the hand, such as the shape of the user's hand, motion, etc., that exists within a predetermined range based on the main body, particularly the display unit 151, through the camera, and the user Can recognize hand gestures.

For example, the detection unit 190 distinguishes the user's hand area from the user's image captured through the camera, and extracts the user's hand area by distinguishing the color of the user's hand and the background color other than the hand. You can. In addition, the sensing unit 190 may track a movement path of a specific hand based on the hand region extracted through the camera.

In addition, here, the first gesture input means a user action related to a channel change condition in a broadcast mode. For example, when a user inputs a gesture of "first shape" using his hand, the broadcast channel may be changed according to a corresponding first condition, and when a user inputs a gesture of "second shape" The broadcast channel may be changed according to the corresponding second condition. The user's operation corresponding to the channel change condition may be previously stored in the storage 160.

Meanwhile, a broadcast program corresponding to a specific broadcast channel may be output to the display unit 170. As described above, in a broadcast mode in which at least one broadcast program is output to the display unit 170, the control unit 150 recognizes the first gesture input and is connected to the outside within a preset time (eg, 1 to 2 seconds). A signal corresponding to the second gesture input may be received from the input device 200 (eg, a space remote controller) (S420).

Here, the signal corresponding to the second gesture may be, for example, one of a scroll signal, a pointing signal, and a key input signal.

Specifically, when the received signal is a scroll signal, direction information and speed information corresponding to rotation of the wheel provided in the external input device 200 are included. In addition, if the received signal is a pointing signal, it includes direction information and movement speed information of a pointer displayed on the display unit 150 according to motion information sensed through the sensor unit 230 of the external input device 200. In addition, if the received signal is a key input signal, it includes information of a function (channel number increase, channel number decrease) that senses the position of the touched key.

Also, the controller 150 may recognize a function or operation of the video display device 150 corresponding to the first gesture input. To this end, a user gesture corresponding to a specific function or operation of the image display device 150 may be previously stored in the storage 160.

As described above, when a user's first gesture input is recognized and a signal corresponding to the second gesture input input to the external input device 200 is received, the control unit 150 determines a condition corresponding to the first gesture input and The operation of the video display device 100 is controlled to change a broadcast channel based on direction information included in the received signal (S430).

Specifically, the control unit 150 controls to channel up or down the broadcast channel output on the current display unit 150 according to a condition corresponding to the first gesture input and direction information included in the received signal. .

That is, when the first gesture input and the signal are complexly recognized, the control unit 150 maintains the first gesture input and continuously receives the signal from the external input device 200, the first gesture It is controlled to channel up or down according to the direction information of the received signal while satisfying the channel movement condition corresponding to the input.

At this time, the channel number of the broadcast channel switched according to the combined operation of the user's first gesture input and the second gesture input may not necessarily increase or decrease sequentially.

For example, channels may be switched while skipping a plurality of broadcast channels registered in the entire channel map according to conditions corresponding to the first gesture input. Further, for example, the channel may be switched while repeating the increase and decrease of the channel number according to a certain pattern.

Meanwhile, when only one of the first gesture input and the second gesture input is recognized, the video display device 100 according to an embodiment of the present invention inputs an unrecognized gesture to the display 170 or the audio output 180 Can output a notification requesting. Alternatively, when the recognition of at least one of the first gesture input and the second gesture input continuously fails, the video display device 100 may output a notification requesting to perform the first gesture input again.

As described above, according to the operation method of a video display device according to an embodiment of the present invention, a movement to a desired broadcast channel and a channel movement unit can be effectively achieved through a user's motion and a complex gesture input using an external input device. have.

Hereinafter, with reference to FIGS. 5 to 6A and 6B, an operation method of a video display device corresponding to a user's composite gesture input for switching a broadcast channel in a preferred channel unit will be described.

In this regard, FIG. 5 is a conceptual diagram illustrating a complex gesture input for switching broadcast channels in units of preferred channels according to an embodiment of the present invention. And, Figures 6a and 6b is a conceptual diagram for explaining, according to an embodiment of the present invention, to register or release the current broadcast channel as a preferred channel through gesture input.

Here, the external input device 200 that is connected to the video display device 100 according to the present invention, for example, a spatial remote control, is not provided with a key for performing a preferred channel mode, for example, a hot key. It will be especially useful.

In a state in which a broadcast program corresponding to a specific broadcast channel is output to the display unit 170, the controller 150 of the video display device 100 detects a user's first gesture input within a predetermined range based on the main body. can do. To this end, the video display device 100 may detect the user's location and the user's gesture through the camera of the detector 190.

The controller 150 may enter a preferred channel mode in response to the detected first gesture input recognized as a preset first shape. Here, the preferred channel mode means a mode for changing a channel on a preferred channel map composed of only channels desired by a user among broadcast channels registered in the entire channel map.

For example, referring to FIG. 5, the first shape is a shape in which the user 900 collects his thumb and index finger and the other fingers are spread or vertically raised (that is, a gesture indicating a shape indicating “OK”) ( 510). The first shape is not limited thereto, and may be, for example, an operation of moving a user's hand pointing to the first shape in a predetermined direction or changing it to a second shape. Such a shape may be pre-stored in the storage 160, or may be changed to another shape through user input.

As described above, upon entering the preferred channel mode according to the recognition of the first shape, and when a signal corresponding to the second gesture input input to the external input device 200 is received, the controller 150 is included in the received signal According to the direction information, the broadcast channel is changed in units of the pre-registered preferred channel.

For example, referring to FIG. 5, when the user 900 enters a preferred channel mode by taking a gesture indicating a shape indicating “OK”, or at a predetermined time interval, a wheel provided in the external input device 200 When performing the second gesture input 520 of rotating the key in the first direction, the controller 150 may change the preferred channel based on the first direction. For example, if the first direction is the direction in which the channel increases ('+'), the controller 150 may switch channels while increasing the registered preferred channels in order corresponding to the movement of the wheel key. On the other hand, if the first direction is a direction in which the channel decreases ('-'), the control unit 150 may switch channels while decreasing the registered preferred channels in order corresponding to the movement of the wheel key.

On the other hand, although not shown in Figure 5, the first gesture input of the first shape and other hard keys provided on the external input device 200 by touching the second gesture input 520 to perform the same as described above Similarly, channel switching can be made.

6A and 6B, the process of editing the preferred channel map will be described in detail as follows. In the embodiment of the present invention, the process of registering and releasing the favorite channel to the preferred channel map is performed only by the user's operation, which is convenient for the user.

In a state in which a broadcast program corresponding to a specific broadcast channel is output to the display unit 170 of the video display device 100 according to an embodiment of the present invention, that is, in a broadcast mode, the control unit 150 is determined based on the main body. The user's gesture input within the range can be detected.

If the detected gesture input is a third gesture input, the controller 150 may register a broadcast channel corresponding to screen information currently displayed on the display unit in a map of a preferred channel. Here, the third gesture input may be a user gesture having a different shape from the first to second gesture inputs.

For example, referring to FIG. 6A, while a broadcast screen corresponding to a specific broadcast channel, for example, channel '77' is output on the display unit 170, a preset gesture input from the user 900, for example, For example, if there is a gesture input of a shape 610a indicating '0' using both hands, the controller 150 may register the channel '77' in the preferred channel map.

Meanwhile, if the detected gesture input is a fourth gesture input, the controller 150 may release a broadcast channel corresponding to screen information currently output to the display unit 170 from a map of a preferred channel. Here, the fourth gesture input may be a user gesture having a different shape from the first to third gesture inputs.

For example, referring to FIG. 6B, when a specific broadcast channel registered in the preferred channel map is displayed on the display unit 170, for example, a broadcast screen corresponding to the channel '77' is output, a user 900 If there is a set gesture input, for example, a gesture input of a shape 610a indicating 'X' using two hands, the controller 150 may release the channel '77' from the preferred channel map.

In addition, here, the shapes corresponding to the third gesture input and the fourth gesture input are shapes pre-stored in the storage 160, and shapes corresponding to the pre-stored third gesture input and the fourth gesture input are through user input. It can be changed to other shapes.

In addition, in an embodiment of the present invention, when a user's fifth gesture input (a gesture input different from the above-described first to fourth gesture inputs) is detected, preference is given to a region of the display unit 170 of the controller 150 A list of broadcast channels registered in the channel map can be displayed. Furthermore, when the gesture input of the preset method is recognized while the above list is displayed, the controller 150 releases a specific broadcast channel from the preferred channel map or changes a new broadcast channel to the preferred channel map without changing the channel. It is possible to register.

As described above, when an event in which a specific broadcast channel is registered in the preferred channel map or released from the preferred channel occurs, the controller 150 may output a notification corresponding to the generated event.

For example, as shown in FIG. 6A, when the channel '77' is registered in the preferred channel map, a message informing it, for example, a message such as 'registered as a preferred channel' is displayed on the display unit 170. It can be output in one area. In addition, for example, as shown in FIG. 6B, when the channel '77' is released from the preferred channel map, a message informing it, for example, a message such as 'released from the preferred channel' is displayed on the display unit 170 ). Meanwhile, in another example, such notification messages may be output through the audio output unit 180.

As described above, a broadcast channel corresponding to a screen currently displayed on the display unit 170 may be registered in the preferred channel map or released from the preferred channel map only by a simple user gesture input.

Hereinafter, an operation method of a video display device corresponding to a user's composite gesture input for switching broadcast channels in units of mood group will be described with reference to FIG. 7.

In this regard, FIG. 7 is a conceptual diagram illustrating a complex gesture input for switching broadcast channels in group channel units according to an embodiment of the present invention.

Here, the group channel means a case in which a plurality of broadcast channels are grouped into a plurality of groups based on EPG information input through the tuner 110. For example, when the group channels are classified according to broadcasting genres, the group channels may mean broadcasting channels belonging to each group classified as drama, sports, news, education, and the like.

In a state in which a broadcast program corresponding to a specific broadcast channel is output to the display unit 170, the controller 150 of the video display device 100 detects a user's first gesture input within a predetermined range based on the main body. can do. To this end, the video display device 100 may detect the user's location and the user's gesture through the camera of the detector 190.

The controller 150 may enter the group channel mode based on the above-described EPG information in response to the sensed first gesture input recognized as a preset second shape.

EPG information is broadcast-related information that is regularly provided to a user watching a broadcast through the video display device 100, and includes, for example, a title of a broadcast program, a channel number, a broadcast time, and a broadcast-related paraphrase. can do. The EPG information may be output through the display unit 170 through a predetermined control command.

At this time, the criteria for grouping a plurality of broadcast channels into a plurality of groups based on EPG information may vary. That is, broadcast channels may be grouped by specific broadcast time zones based on the broadcast time included in the EPG information, and broadcast channels may be classified by genre or by broadcast programs frequently viewed by users based on the broadcast program information included in the EPG information. Can be classified. In addition, it is also possible to set in advance specific criteria for classifying a plurality of broadcast channels based on EPG information through user input.

For example, referring to FIG. 7, the second shape may be a “fist” shape 710 in which the user 900 wraps all his fingers. The second shape is not limited thereto, and may be, for example, an operation of moving a user's hand pointing to the second shape in a predetermined direction or changing it to a third shape. In addition, the shape may be pre-stored in the storage 160, or may be changed to another shape through user input.

As described above, upon entering the group channel mode according to the recognition of the second shape, and when a signal corresponding to the second gesture input input to the external input device 200 is received, the controller 150 is included in the received signal According to the direction information, a broadcast channel is changed in units of group channels classified based on EPG information. That is, it can switch to a specific broadcast channel belonging to the first group, and then switch to a specific broadcast channel belonging to the second group.

For example, referring to FIG. 7, when the user 900 enters the group channel mode by taking a hand-shaped gesture indicating “fist” or simultaneously or at a predetermined time interval, the external input device 200 is provided. When the second gesture input 520 for rotating the wheel key in the first direction is performed, the controller 150 may change the broadcast channel in group channel units based on the first direction. At this time, if the first direction is the direction in which the channel increases ('+'), the control unit 150 changes the broadcast channel while skipping in the direction in which the group number increases as much as corresponding to the movement of the wheel key. On the other hand, if the first direction is the direction in which the channel decreases ('-'), the control unit 150 changes the broadcast channel while skipping in the direction in which the group number decreases as much as corresponding to the movement of the wheel key.

Meanwhile, the control unit 150 may display a group or group classification criteria to which the switched broadcast channel belongs, in one area of the display unit 170. For example, in FIG. 7, when the switched channel '77' is a channel belonging to a drama group, an indicator indicating the group, for example, 'drama' text 330 is an area of the display unit 170, For example, it may be displayed in an area adjacent to the channel display area 301.

In addition, the control unit 150 may display the EPG information displayed on the display unit 170 upon request of the EPG information display input from the user, to change the classification criteria of the above-described group, or to edit a plurality of mood groups. It is possible.

For example, the controller 150 displays a group list of channels classified based on EPG information through a user's sixth gesture input, and in a state where the group list is displayed, uses the gesture of a preset method to group the group. It can be deleted, added, or changed.

In addition, although not shown in FIG. 7, the second gesture input 520 may be performed by touching another hard key provided in the external input device 200 together with the first gesture input of the second shape. Channel switching can be done in the same way.

Hereinafter, with reference to FIG. 8, an operation method of a video display device corresponding to a complex gesture input for switching a broadcasting channel in a group corresponding to a specific number or in units of a specific number band will be described.

8 is a conceptual diagram illustrating a complex gesture input for switching broadcast channels in a specific number band unit according to an embodiment of the present invention.

In an embodiment according to the present invention, in a state in which a broadcast program corresponding to a specific broadcast channel is output to the display unit 170, the control unit 150 of the video display device 100 is within a predetermined range based on the main body. The user's first gesture input may be detected. To this end, the video display device 100 may detect the user's location and the user's gesture through the camera of the detector 190.

The controller 150 may detect a group corresponding to the recognized number or a broadcast channel representing the recognized numeric band in response to the sensed recognition that the detected first gesture represents a specific number.

For example, referring to FIG. 8, when the user 900 unfolds his index finger and middle finger (or thumb and index finger) and the rest of the fingers are in a folded shape (that is, a gesture indicating the number '2'), the controller 150 ) Can recognize this as the number '2'. Such a shape may be pre-stored in the storage 160, or may be changed to another shape through user input.

As described above, when a group corresponding to the recognized number or a broadcast channel representing the recognized number band is detected, and a signal corresponding to the second gesture input input to the auxiliary input device 200 is received, the control unit 150 Changes the broadcast channel in the corresponding group based on the received signal direction information, or changes the broadcast channel in the unit of the recognized numeric band. At this time, whether to associate the recognized number with a specific group or with a specific number band can be selected through user input.

Here, the representative broadcast channel may mean, for example, a channel having the smallest channel number in the corresponding group or corresponding numeric band.

Meanwhile, in one embodiment, when the recognized number corresponds to a specific number band, referring to FIG. 8, the first channel having the recognized number '2' as the second digit, that is, the channel '20' (301) The broadcast screen is output to the display unit 170. Then, according to the second gesture input for rotating the wheel key provided in the external input device 200, the broadcasting channels of band 20 are sequentially switched. That is, when performing the second gesture input 520 of rotating the wheel key provided in the external input device 200 in the first direction, the control unit 150 recognizes a broadcast channel based on the first direction. Change channel in '2' band unit.

At this time, if the first direction is the direction in which the channel increases ('+'), the control unit 150 increases the group number as much as corresponding to the movement of the wheel key, for example, '20, 21, 22, 23. ... 29, 200, 201 ... ', you can switch broadcast channels while skipping channels. On the other hand, if the first direction is the direction in which the channel decreases ('-'), the control unit 150 decreases the group number as much as corresponding to the movement of the wheel key, for example, '29, 28, 27,. ... You can switch channels by skipping channels like 20 and 2 '.

In addition, when another specific number is recognized while changing a channel in the unit of the number '2' band, that is, when a gesture input indicating a number is changed, the broadcast channel of the changed number band is currently displayed in the display unit 170. The channel can be changed to the nearest channel.

Meanwhile, although not illustrated in FIG. 8, when two or more digits are represented, a gesture input indicating the second digit may be recognized within a few seconds after the gesture input indicating the first digit is input. .

In another embodiment, when the recognized number corresponds to a specific group, the display unit 170 displays a broadcast screen corresponding to the first broadcast channel belonging to a group (eg, a sports-related channel group) corresponding to the recognized number '2'. Output to Then, the channel is switched to the second broadcast channel belonging to the sports-related channel group according to the second gesture input rotating the wheel key provided in the external input device 200. At this time, when a signal in a direction of reducing the channel ('-') is received while a broadcast screen corresponding to the first broadcast channel of the corresponding group is displayed, the broadcast channel corresponding to the first broadcast channel of the corresponding group may be switched. On the other hand, when a signal in a direction to increase a channel ('+') is received while a broadcast screen corresponding to the last broadcast channel of the corresponding group is displayed, it may be switched to the first broadcast channel of the corresponding group.

On the other hand, although not shown in Figure 8, the first gesture input indicating a specific number and another hard key provided in the external input device 200 to touch the second gesture input 520 is performed as described above Channel switching can be done in the same way.

As described above, through the user gesture input and key manipulation provided in the external input device, the channel can be changed in a condition unit related to the number recognized through the user gesture input.

Hereinafter, a method of displaying the recognition of the user's complex gesture input for channel switching to the outside will be described with reference to FIG. 9.

In this regard, FIG. 9 is a conceptual diagram illustrating a start gesture related to a complex gesture input for channel switching and a method of displaying whether a complex gesture input is recognized according to an embodiment of the present invention.

As described above, in a state in which a broadcast program corresponding to a specific broadcast channel is output to the display unit 170 of the video display device 100, the control unit 150 of the video display device 100 is based on the main body. A user's first gesture input within a predetermined range may be detected. To this end, the video display device 100 may detect the user's location and the user's gesture through the camera of the detector 190.

Meanwhile, in an embodiment according to the present invention, before a channel change is performed by a user's complex gesture input, it may be implemented to request an initial gesture input.

To this end, the controller 150 may determine whether a preset initial gesture input is detected before the user's first gesture input is detected.

For example, referring to (a) of FIG. 9, the user performs a gesture in the shape of the user's palm facing out toward the display unit 170 (that is, inputting a gesture in the form of a 'recipe'). Next, it is possible to control the channel to be changed by the first gesture input and the second gesture input described above. Here, the above-described initial gesture may be pre-stored in the storage 160 and can be changed through user input.

The control unit 150 may determine whether to recognize the first gesture input described above according to the determination result.

That is, as a result of the determination, when a preset initial gesture is input, a notification message such as 'initial gesture detected' is displayed at a lower portion of the display unit 170, for example, as shown in FIG. 9 (a). It may pop up.

As a result of the determination, if a preset initial gesture is not input, a message requesting input of the initial gesture may be popped up or a channel change may not be made by the user's complex gesture described above.

Meanwhile, in another example, the controller 150 may output a notification for at least one of the input of the initial gesture, the request to input the initial gesture, and the failure or recognition of the initial gesture through the audio output unit 180. You can.

As described above, after the initial gesture is input, the first gesture input sensed through the sensing unit 190 is recognized, and the external input device 200 (eg, 1) is connected within a preset time (eg, 1 to 2 seconds). When a signal corresponding to the second gesture input is received from the space remote controller), the controller 150 may change the broadcast channel based on the condition corresponding to the first gesture input and direction information included in the received signal. .

At this time, the control unit 150 may indicate that the input of the first gesture and the input of the second gesture are recognized, respectively.

Specifically, when the first gesture input is recognized, the controller 150 may display a first icon corresponding to the first gesture input on an area of the display 170. In addition, the controller 150 recognizes a first gesture input, and a signal corresponding to the second gesture input (input applied to the external input device 200) within a preset time (eg, 1 to 2 seconds). When received, the first icon displayed on the display 170 may be changed to a second icon. Here, the shape of the first icon and the second icon is not limited. That is, the first icon and the second icon may be a texture, an image, or a combination of indicators indicating the recognition result.

For example, referring to (b) of FIG. 9, when there is a first gesture input representing the number '2' within a few seconds after the user's initial gesture input, and the controller 150 recognizes it, the controller 150, the text 340 indicating the number '2' may be displayed on the front surface of the display unit 170. At the same time, the screen output to the display unit 170 is moved to the broadcast channel representing the recognized numeric band, for example, the channel '20'.

In addition, for example, referring to (c) of FIG. 9, after a user's first gesture input, a signal corresponding to the second gesture input is received from the external input device 200 and the controller 150 receives it. When recognizing, the control unit 150 may be an area of the text 350 display unit 170 in a reduced form of the text 340 indicating the number '2' shown in FIG. 9B, for example It can be displayed at the top. In addition, along with this, the screen output to the display unit 170 may be moved from the channel '20' to the channel '21' according to the direction information of the received signal. Meanwhile, although not illustrated in FIG. 9C, if the first gesture input and / or the second gesture input is recognized as being changed, the shapes of the icons displayed on the display unit 170 are also changed accordingly.

As described above, when a channel change is performed by considering a user's gesture input that recognizes a channel change and a signal received through the external input device 200 in combination, it is necessary to recognize a variety of gesture inputs and gesture recognition. It is possible to reduce the time and overcome the limitations of key resources to be provided in the external input device 200.

Hereinafter, with reference to FIG. 10, an operation method of a video display device in which channel switching corresponding to a complex user gesture input is made by a voice command and a signal input to an external input device will be described.

10 is a conceptual diagram illustrating a case in which a composite gesture input for channel switching is performed by a user's voice command according to an embodiment of the present invention.

The control unit 150 of the video display device 100 according to an embodiment of the present invention may detect a user's voice command within a predetermined range based on the main body. To this end, the video display device 100 detects the approximate location of the user through a camera (not shown) and a microphone (not shown) of the detector 190, and detects the user's voice through the microphone, thereby The detected result may be transmitted to the control unit 150.

Meanwhile, a broadcast program corresponding to a specific broadcast channel may be output to the display unit 170. As described above, in a broadcast mode in which at least one broadcast program is output to the display unit 170, the control unit 150 recognizes a user's voice command and is connected to an external input within a preset time (eg, 1 to 2 seconds). A signal corresponding to the second gesture input may be received from the device 200 (eg, a space remote controller) (S420).

As described above, when a user's voice command is recognized and a signal corresponding to the second gesture input input to the external input device 200 is received, the control unit 150 receives the condition corresponding to the input voice command and the reception The operation of the video display device 100 is controlled to change the broadcast channel based on the direction information included in the signal. The above-described embodiments may also be applied here except that the first gesture input is converted to the user's voice command.

For example, if the voice command is a control command for entering the preferred channel mode, the controller 150 may control to change the broadcast channel in units of the pre-registered preferred channel according to the direction information of the received signal.

Further, as another example, if the voice command is a control command for entering a group channel mode based on EPG information, the control unit 150 is based on the direction information of the received signal, and is grouped based on EPG information. It may be controlled to change the broadcast channel.

Further, as another example, if the voice command is recognized as a specific number of voices, the controller 150 may detect a broadcast channel representing a group or a recognized number band corresponding to the recognized number. Then, the control unit 150 may control to change to a broadcast channel belonging to the group or to change the broadcast channel by skipping in the unit of the numeric band based on direction information of the received signal.

Specifically, referring to FIG. 10, when the user 900 calls' 2 'and the controller 150 recognizes the voice with the number' 2 ', the broadcast channel representing the recognized number' 2 'band' 20 '. Then, in response to rotating the wheel of the external input device 200, for example, the space remote controller in the direction of increasing the number, a channel change as much as the movement of the wheel can be made. For example, a channel change may be made in a pattern such as '21, 22, 23, ... 29, 200, 201 '.

In addition, when the channel is changed through the user's voice command and the complex user gesture input of the operation of the external input device 200, as shown in FIG. 10, the text 340 indicating that speech recognition is being performed. May be displayed on one area of the display unit 170, for example, on the bottom right.

As described above, when a channel change is performed by a user's voice command and a complex operation of gesture input through the external input device 200, the channel movement in a unit desired by the user is input into one hand (external input device 200). It can be made by the user's hand motion (for the user's convenience).

As described above, according to the video display device and the video display device operation method according to the present invention, the user can effectively move to a desired broadcast channel or a broadcast channel belonging to a specific group and a channel shift unit through a user's complex gesture input. It can provide user convenience. In addition, when the channel is moved, the input by the user's action and the input using the external input device are used in combination, thereby enabling intuitive control through the input by the user's action, and more easily configuring the key to the external input device. .

Furthermore, one of ordinary skill in the art to which the present invention pertains will appreciate that the present invention may be implemented in other specific forms without changing its technical spirit or essential features. Therefore, it should be understood that the above-described embodiments are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the scope of the claims, which will be described later, rather than the detailed description, and all the changed or modified forms derived from the meaning and scope of the claims and their equivalent concepts are included in the scope of the present invention. Should be interpreted.

Claims (14)

A wireless communication unit connected to an external input device;
A sensing unit that detects a user's first gesture input within a predetermined range based on the main body; And
In the broadcast mode, when the first gesture input is detected and a signal corresponding to the second gesture input is received from the connected external input device within a preset time,
And a control unit controlling to change a broadcast channel based on a condition corresponding to the detected first gesture input and direction information included in the received signal,
The control unit,
When the first gesture input is recognized, a first icon corresponding to the first gesture input is displayed on an area of the display unit, and when a signal corresponding to the second gesture input is received and recognized within a predetermined time, the first icon The first icon is changed to a second icon to be displayed, and the first gesture input and the second gesture input are recognized, respectively.
The second icon is a combination of the text and image of the indicator indicating the recognition result,
In response to the recognition that the first gesture represents a specific number, a broadcast channel representing a group corresponding to the recognized number or a recognized number band is detected, and a broadcast channel within the group based on the direction information. Or controlling to change a broadcast channel in units of the recognized numeric band. According to claim 1,
The signal corresponding to the second gesture is one of a scroll signal, a pointing signal, and a key input signal,
The control unit controls the broadcast channel to channel up or down according to the direction information. According to claim 1,
The control unit,
Video display characterized by controlling to enter a preferred channel mode in response to the first gesture input being recognized as a preset first shape, and to change a broadcast channel in units of a preferred channel registered according to the direction information. Device. According to claim 3,
The control unit, in the broadcast mode,
When the third gesture input is recognized, a broadcast channel corresponding to the screen information currently output on the display unit is registered in the map of the preferred channel,
When the fourth gesture input is recognized while the screen information corresponding to the broadcast channel registered as the preferred channel is output to the display unit, the video display device is controlled to release the broadcast channel from the map of the preferred channel. According to claim 4,
The control unit,
When at least one event of registration to the map of the preferred channel and release from the map of the preferred channel occurs, control to output a notification corresponding to the generated event. delete delete delete delete delete delete delete delete delete

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