KR20120019326A - Display apparatus and controlling method thereof - Google Patents

Abstract

PURPOSE: A display apparatus and operating control method thereof are provided to automatically control the capturing state of a camera by acquiring moving information according to the change of a location. CONSTITUTION: When the location of a remote controller is changed by a user, a sensor unit senses the changed location of the remote controller(S310). The sensor unit acquires moving information according to the changed location of the remote controller(S320). In case the moving distance of the remote controller is longer than a threshold distance, the control unit controls the capturing state of a camera according to the moving information(S330, S340).

Description

Display apparatus and controlling method thereof

The present invention relates to a display device and a method for controlling its operation.

As digital-based digital TV technology has been developed and commercialized in existing analog broadcasting, real-time broadcasting, contents on demand, games, news, video communication, etc., using the Internet network connected to each home in addition to the existing radio media. Various kinds of content services can be provided to users.

An example of providing a content service using the Internet network may be an Internet Protocol TV (IPTV). The IPTV refers to transmitting a variety of information services, moving picture content and broadcasting to a user's television using a high-speed Internet network.

Meanwhile, in providing a video call service on a digital TV, a camera is implemented in various ways to send a video of a speaker (terminal user). For example, when a fixed camera is implemented, only a fixed position can be taken. In case of implementing a rotated camera, the terminal user must rotate the camera module by manual operation. Therefore, if the user's image is out of the terminal screen, that is, the user is not positioned within the camera shooting range due to the change in the user's position. In this case, since a stable video call is not possible, the camera lens is directed toward the user, such as manually rotating the camera module. There was a problem to follow All.

An object of the present invention is to provide a display device and a control method thereof that can adjust a photographing state of a camera without a separate operation of a user.

According to an exemplary embodiment of the present invention, a display device may include a camera, a sensor unit detecting a change in position of a remote controller, and obtaining movement information according to a change in position of the remote controller sensed by the sensor unit, and corresponding to the movement information of the camera. And a control unit for adjusting the photographing state.

According to an embodiment of the present invention, a method of controlling an operation of a display apparatus may include detecting a change in a position of a remote controller, obtaining movement information according to the detected position change, and adjusting a photographing state of a camera in response to the movement information. Steps.

On the other hand, the reproduction method may be implemented as a computer-readable recording medium recording a program for execution in a computer.

According to the exemplary embodiment of the present invention, the user can make a stable video call by adjusting the photographing state of the camera only by changing the position of the remote controller without a separate operation of the user.

1 is a block diagram showing the configuration of a video communication system.
2 is a block diagram showing the configuration of a video communication apparatus.
3 is a view showing a simplified configuration of a display device according to an embodiment of the present invention.
4 is a flowchart illustrating an operation control method of a display apparatus according to an exemplary embodiment of the present invention.
5 to 6 are diagrams for explaining an example in which the shooting state of the camera is adjusted according to the change in the position of the remote control.
7 is an example of a screen for setting an operation control method of a display apparatus according to an exemplary embodiment of the present invention.
8 is a view for explaining an example of manually adjusting the photographing state of the camera according to an embodiment of the present invention.
9 is a block diagram illustrating a first embodiment of a configuration of a display apparatus according to the present invention.
10 is a block diagram illustrating an embodiment of a configuration of a display system.
11 is a block diagram illustrating a second embodiment of a configuration of a display apparatus according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the present invention. Like numbers refer to like elements throughout.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise. In addition, the terms "... unit", "... group", "module", etc. described in the specification mean a unit that processes at least one function or operation, which is hardware or software or a combination of hardware and software. It can be implemented as.

Hereinafter, a display apparatus and an operation control method thereof according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing the configuration of a video communication system.

Referring to FIG. 1, a video communication system uses a plurality of devices capable of processing and transmitting / receiving video data and audio data, while viewing a video transmitted by a calling party and a called party from an opposite party. It's a system that lets you talk to each other.

For example, the image communication apparatus 10 acquires image and audio data corresponding to the image and audio of the user by using a camera, a microphone, and the like and inputs the obtained image and audio data. It may transmit to other devices 20 to 60 connected via a wired or wireless network.

Meanwhile, the video communication device 10 may receive video and audio data from other devices 20 to 60 connected to the wired / wireless network. Accordingly, the video communication device 10 and the external devices 20 to 60 may be received. Video communication between may be possible.

As illustrated in FIG. 1, an external device capable of video communication with the video communication device 10 may be a mobile terminal 30, a PC 40, or another video communication device 50 such as a mobile phone 20, a PDA, or a notebook computer. ) And the display device 60 and the like.

In addition, the network connecting the video communication device 10 and the external devices 20 to 60 enables transmission and reception of video and audio data according to a communication standard for video communication.

For example, the video communication device 10 and the external devices 20 to 60 transmit and receive the video and audio data using a network according to Ethernet or IEEE 802.3, or use a wireless network according to IEEE 802.11, or the like. The data can be transmitted and received.

Meanwhile, the network may transmit and receive data between the video communication device 10 and the external devices 20 to 60 by using a voice over broadband (VoBB) or legacy service.

More specifically, the VoBB may include voice over cable modem (VOCM), voice over DSL (VODSL), voice over Internet protocol (VoIP), fixed wireless access (FWA), fiber to the home (FTTH), or voice over VoATM (VoATM). Services such as ATM).

The legacy service may include an integrated service digital network (ISDN), a plain old telephone service (POTS), a cellular or 3G service, and the like.

Accordingly, the video communication device 10 and the external devices 20 to 60 may transmit video and audio data using a wireless network, a conventional telephone network, a data network such as the Internet, a cable modem system, a cellular network, or the like. Can send and receive

Meanwhile, the video communication device 10 and the external devices 20 to 60 may transmit and receive video and audio data according to a standard set therebetween. For example, the H.261 standard, video and Communication of voice data may use protocols such as the H.221 standard and the H.242 standard for call setup and teardown.

More specifically, in the case of a video communication system using the Internet, video communication standards such as the H.323, H.263, and H264 standards for video coding and G723.1, G.711, and G.729 for voice coding are used. Implemented protocols may be used.

However, the video communication system according to the embodiment of the present invention is not limited to the above configuration. For example, the devices 20 to 60 which are in video communication with the video communication device 10 are not limited to the devices 20 to 60 as shown in FIG. 1, and other than the above standard SIP, RTP Standards such as the / RTCP protocol may be used.

2 is a block diagram illustrating the configuration of the video communication apparatus. The illustrated video communication apparatus includes a camera 110, an AV processing unit 120, a control unit 130, a communication unit 140, a microphone 150, and a user input unit ( 160, a storage unit 170, a display unit 180, and a sensor unit 190, and may include a remote controller 200 for inputting a command to the video communication device 10.

Referring to FIG. 2, the camera 100 may photograph a peripheral area of the image communication apparatus 10, more specifically, an area including a user, and acquire and output image data corresponding thereto.

On the other hand, the camera 110 may be provided to be mounted on one side of the main body of the video communication device 10, such as a web cam, and the like, so that the front of the video communication device 10 to be photographed Can be.

Camera 110 according to an embodiment of the present invention can be rotated in various directions such as up, down, left and right to adjust the shooting range. Adjustment of the shooting range of the camera 110 may be manually adjusted through a key input of the remote controller 200, and may be automatically adjusted by detecting a change in the position of the remote controller 200. It will be described later.

The AV processor 120 may process the video data output from the camera 110 and convert the video data into a video stream having a preset format. The AV processor 120 may process the audio data output from the microphone 150 and may process the video data. Can be converted to an audio stream and output.

For example, the AV processor 120 encodes the video data according to standards such as H.323, H.263, and H.264 to form a basic stream of digital data, that is, an elementary stream. A video stream can be output.

In addition, the AV processor 120 may output the voice stream in the form of an elementary stream by encoding the voice data according to standards such as G.723.1, G.711, and G.729.

On the other hand, in addition to the above-described encoding, the AV processing unit 120 improves the image quality of the image acquired by the camera 110 or adjusts it to suit a specific purpose, for example, adjusting the contrast and removing noise. Image processing such as, smoothing, sharpening, and the like may be performed.

The communication unit 140 may transmit a transmission stream including the video stream and the audio stream output from the AV processing unit 120 to an external device, for example, a server for video communication or a video communication device of a counterpart user through a wired or wireless network. .

In addition, the communication unit 140 may receive a reception stream including an image stream and an audio stream from an external device.

More specifically, the communication unit 140 may transmit / receive video and audio streams with the video communication device of the counterpart user by using the wired / wireless network such as Ethernet or IEEE 802.3, IEEE 802.11.

The microphone 150 may collect voices generated in the vicinity of the video communication apparatus 10, more specifically, sounds including voices of a user, and output voice data corresponding thereto.

On the other hand, the microphone 110 may be mounted on one side of the main body of the video communication device 10, or may be disposed outside of the video communication device 10, for example, at a position adjacent to the user.

The user input unit 160 may receive various user inputs for controlling the operation of the remote control apparatus. For example, the user input unit 160 may be implemented as a keyboard or a touch pad mounted on a main body of the remote control apparatus.

On the other hand, the user input unit 160 may not be provided in the remote control device, for example, may be implemented as an external remote control device.

The storage unit 170 may store a program or user information for operating the video communication apparatus 10, and may be implemented as an internal storage medium included in the video communication apparatus 10 as illustrated in FIG. 2. Alternatively, the present invention may be implemented as an external storage medium connected to the video communication device 10 using an interface such as a universal serial bus (USB).

The display unit 180 displays an image of a user acquired by the camera 110, that is, an image to be transmitted to an external device, and also an image of the counterpart user received through the communication unit 140, that is, an image received from an external device. Can be displayed.

For example, the display unit 180 may display an image by using various types of display panels such as digital light processing (DLP), liquid crystal display (LCD), plasma display panel (PDP), and the like.

The sensor unit 190 may detect a change in the position of the remote controller 200 by a user, and calculate movement information regarding a moving direction and a moving distance of the remote controller 200 according to the detected position change. The sensor unit 190 may be any one of an ultrasonic sensor and an infrared sensor, and may detect a position change of the remote controller 200 through the ultrasonic sensor and the infrared sensor.

The controller 130 includes a camera 110, an AV processor 120, a controller 130, a communication unit 140, a microphone 150, a user input unit 160, a storage unit 170, a display unit 180, and a sensor. Each unit 190 can be controlled to control the overall operation of the video communication apparatus 10 as described above.

The remote controller 200 may be either an RF remote controller or an IR remote controller, and transmits a user input to the user input unit 1600. To this end, the remote controller 200 may use Bluetooth, RF (Radio Frequency) communication, infrared (IR) communication, UWB (Ultra Wideband), ZigBee (ZigBee) method and the like.

On the other hand, the display device according to an embodiment of the present invention can be implemented including the configuration of the video communication device as shown in FIG.

3 is a view showing a simplified configuration of a display device according to an embodiment of the present invention.

As shown in FIG. 3, the camera 110 may be attached to an upper end of the display apparatus 100 of the present invention, and the remote controller 200 may be attached to the lower end of the display apparatus 100 in front of the display apparatus 100. Sensor unit 190 for detecting a change in the position of the) may be attached. The remote controller 200 may be moved in space by a user in front of the display apparatus 100. The remote controller 200 may be moved by a user in a space over a specific distance in an up-direction, a down-direction, a left-direction, a right-direction, or a combination thereof (for example, in the left-up-direction).

When the position change of the remote controller 200 occurs, the sensor unit 190 attached to the lower end of the display device 100 detects the position change of the remote controller 200 and detects the position of the remote controller 200. According to the position change, the photographing state of the camera 110 may be adjusted.

4 to 6 will be described in more detail with respect to the operation control method of the display device according to an embodiment of the present invention.

4 is a flowchart illustrating an operation control method of a display apparatus according to an exemplary embodiment of the present invention. 5 to 6 are diagrams for explaining an example in which the shooting state of the camera is adjusted according to the change in the position of the remote control.

First, when the position change of the remote control 200 occurs by the user, the sensor unit 190 detects the position change of the remote control 200 (S310). Thereafter, the sensor unit 190 obtains movement information according to a change in position of the remote controller 200 (S320). The movement information according to the position change of the remote controller 190 includes a movement direction and a movement distance of the remote controller 190.

 The sensor unit 190 according to an embodiment of the present invention simultaneously performs a role of transmitting a signal for measuring a moving direction and a moving distance and receiving a reflected signal.

That is, an infrared sensor and an ultrasonic sensor may be used to measure the moving direction and the moving distance according to the position change of the remote controller 190 by using the sensor unit 190.

First, a method of measuring a moving direction and a distance using an infrared sensor is as follows. First, a method of measuring a moving direction and a moving distance of the remote controller 200 by measuring infrared rays by using an infrared LED having a predetermined wavelength as a reflected light measuring method and measuring the amount of infrared rays coming back to the remote controller 200. That's the way. Accordingly, the moving direction and the moving distance according to the change of the position of the remote controller 200 can be measured through the distance before the change of the position of the remote controller 200 and the distance after the change of the position.

On the contrary, when the remote controller 200 is an IR remote controller, the sensor unit 190 may detect the amount of IR light of the IR remote controller to measure a moving distance and a moving direction.

On the other hand, when the remote control 200 is an RF remote control by a triangulation method, since wireless communication such as Zigbee is frequently used to control various home appliances in the home, wireless communication and RF remote control of the home appliances and the sensor By combining the wireless communication of the unit 190 can measure the moving distance and the moving direction of the remote control 200 through a triangulation measurement method.

The method using the ultrasonic wave uses a method of measuring the time until the ultrasonic pulse emitted from the ultrasonic sensor is reflected from the surface of the remote controller 200 and returns to the ultrasonic sensor again to obtain information according to the measurement target. That is, a method of calculating the distance by measuring the delay time from transmitting the ultrasonic wave to returning and compensating the sound velocity according to the temperature of the ultrasonic wave in the air is used.

However, the moving distance and the moving direction are not limited to the method using infrared rays and ultrasonic waves, and all other methods of measuring the moving direction and the moving distance may be applied. In this case, the distance information may be directly input by the user.

The movement information of the remote controller 200 sensed and calculated by the sensor unit 190 is provided to the controller 130, and the controller 130 provides the movement information, in particular, the movement distance of the remote controller 200. It is determined whether the predetermined distance or more (S330). As a result of the determination in step S330, when the moving distance of the remote controller 200 is greater than or equal to the threshold distance, the controller 130 adjusts the photographing state of the camera 110 in response to the moving information (S340). Here, the meaning of adjusting the photographing state of the camera 110 may include at least one of the photographing direction, zoom in / out, and focus adjustment of the camera 110.

In general, a user performs a video call by being located at an optimal shooting range of the camera 110 mounted on the display apparatus 100, under the assumption that the user makes a video call with the remote controller 200. In addition, the position of the user is determined by the position of the remote controller 200, and the photographing state of the camera 110 is adjusted to be located in an optimal photographing range for conducting a video call according to the change of the position of the user.

Therefore, as shown in (a) of FIG. 5, after the optimum photographing range (dotted line) of the camera 110 is determined according to the initial position of the remote controller 200 detected by the sensor unit 190, FIG. As shown in (b) of FIG. 5, when the position of the remote controller 200 moves more than a predetermined threshold distance from the initial position, the remote controller 200 to reset the optimum shooting range (dotted line) of the camera 110. At least one of the photographing direction, zoom in / out, and focus of the camera 110 is adjusted in response to the movement information according to the change of the position.

On the other hand, as a result of the determination in step S330, if the moving distance of the remote control 200 is less than the threshold distance, the controller 130 controls so that the photographing state of the camera 110 is not adjusted. Here, the threshold distance may be a distance within a shooting range of the camera 110. As shown in FIG. 6, when the moving distance of the remote controller 200 is less than or equal to a preset threshold distance, that is, when the user moves the remote controller 200 little by little, the position of the user is still photographed by the camera 110. It may be within range. Therefore, despite the positional change of the remote controller 200, the photographing state of the camera 110 may not be adjusted.

On the other hand, in automatically adjusting the photographing state of the camera 110 in response to the movement information according to the change in the position of the remote control 200, an item for the photographing state of the camera 110 can be set according to the user's setting This will be described in more detail with reference to FIG. 7.

7 is an example of a screen for setting an operation control method of a display apparatus according to an exemplary embodiment of the present invention. Referring to FIG. 7, a user may enter an automatic mode of a camera setting mode through a key input signal of the remote controller 200.

In the camera setting mode, the automatic mode may be entered, and the setting may be completed by checking at least one of the photographing direction, zoom in / out, and focus of the camera 110 in the photographing state of the camera 110.

For example, when the shooting direction, zoom in / out, and focus are all set in the automatic mode of the camera setting mode, the camera 110 of the camera 110 corresponds to the movement information according to the change of the position of the remote controller 200. The shooting direction, zoom in / out and focus can all be adjusted.

Meanwhile, the position of the remote controller 200 when only the shooting direction, the zoom in / out and the focusing direction and the focus of the camera setting mode are set to the automatic mode, and the zoom in / out is not set to the automatic mode. Even if the movement information according to the change includes the movement direction related to the zoom in / out, the photographing state of the camera 110 may be adjusted only for the shooting direction and the focus, and may not be adjusted for the zoom in / out of the camera 110. have.

On the other hand, despite the automatic adjustment of the photographing state of the camera 110 in response to the movement information according to the position change of the remote control 200, the photographing state of the camera 110 through the key input of the remote control 200 Can be adjusted manually, with reference to FIG.

8 is a view for explaining an example of manually adjusting the photographing state of the camera according to an embodiment of the present invention. Referring to FIG. 8, the manual mode setting screen of the camera setting mode may be displayed on the display 180 through a menu key input from the remote controller 200. Meanwhile, a hot key for entering the camera setting mode screen among the key buttons of the remote controller 200 may be assigned to directly enter the manual mode setting screen of the camera setting mode.

After entering the manual mode setting screen of the camera setting mode, in order to change the shooting state of the camera 110, any of the shooting direction, zoom in / out and focus of the camera through the key input signal of the remote control 200 By selecting one and generating a camera adjustment signal for any one of the selected camera shooting status items by using a direction key of the remote controller 200, the shooting status of the camera 110 may be manually adjusted.

Manual adjustment of the photographing state of the camera 110 may be performed even during automatic adjustment of the photographing state of the camera 110 in response to movement information according to the change of the position of the remote controller 200, and may be performed even after the automatic adjustment is completed. Can be. Accordingly, even after the automatic adjustment of the photographing state of the camera 110 is completed, the fine adjustment may be manually adjusted. In addition, even during the automatic adjustment of the photographing state of the camera 110, not only fine adjustment of the photographing state of the camera 110 is possible, but also the photographing state of any one of the automatic modes of the camera setting mode shown in FIG. For example, even when the adjustment of the zoom in / out is not set to the automatic mode, there is an advantage that the adjustment for the zoom in / out can be made manually.

FIG. 9 is a block diagram illustrating an embodiment of a configuration of a display apparatus according to an exemplary embodiment of the present invention, and illustrates an embodiment of an apparatus in which an operation control method of the display apparatus according to the present invention is performed.

Referring to FIG. 9, the display apparatus includes a first tuner 420, a second tuner 425, an external signal input unit 428, a first demodulator 430, a second demodulator 435, and an analog / digital conversion. The unit 440 may include an interface unit 450, a controller 460, a channel browsing processor 470, a storage unit 475, a display unit 480, and an audio output unit 485.

The first tuner 420 selects an RF broadcast signal corresponding to a channel selected by a user from a radio frequency (RF) broadcast signal received through an antenna, and converts the selected RF broadcast signal into an intermediate frequency signal or a baseband video / audio signal. Convert to

For example, if the selected RF broadcast signal is a digital broadcast signal, it is converted into a digital IF signal DIF1, and if it is an analog broadcast signal, it is converted into an analog baseband video / audio signal CVBS 1 / SIF. That is, the first tuner 420 may be a hybrid tuner capable of processing digital broadcast signals and analog broadcast signals. The analog baseband video / audio signal CVBS 1 / SIF output from the first tuner 420 may be directly input to the controller 460.

In addition, the first tuner 420 may receive an RF broadcast signal of a single carrier according to an Advanced Television Systems Committee (ATSC) scheme or an RF broadcast signal of multiple carriers according to a digital video broadcasting (DVB) scheme.

Similar to the first tuner 420, the second tuner 425 selects an RF broadcast signal corresponding to a channel selected by a user from a radio frequency (RF) broadcast signal received through an antenna, and selects the selected RF broadcast signal. Converts to an intermediate frequency signal or baseband video / audio signal.

Meanwhile, the second tuner 425 sequentially and periodically selects corresponding RF broadcast signals of all stored broadcast channels through the channel memory function among the RF broadcast signals received through the antenna in the present invention, and the intermediate frequency signal or It is also possible to convert baseband video / audio signals.

For example, the first tuner 420 converts a main RF broadcast signal selected by a user into an intermediate frequency signal or a baseband video / audio signal, and the second tuner 425 converts all RF broadcasts except for the main RF broadcast signal. It is possible to select a signal (sub RF broadcast signal) or all RF broadcast signals sequentially / periodically and convert them into an intermediate frequency signal or a baseband video / audio signal.

The first demodulator 430 receives the digital IF signal DIF 1 converted by the first tuner 420 and performs a demodulation operation.

For example, when the digital IF signal DIF 1 output from the first tuner 420 is an ATSC scheme, the first demodulator 430 performs 8-VSB (8-Vestigal Side Band) demodulation. In addition, the first demodulator 430 may perform channel decoding.

To this end, the first demodulator 430 includes a trellis decoder, a de-interleaver, a reed solomon decoder, and the like. de-interleaving) and read solo decoding.

For example, when the digital IF signal DIF 1 output from the first tuner 420 is a DVB scheme, the first demodulator 430 performs coded orthogonal frequency division modulation (COFDMA) demodulation. In addition, the first demodulator 430 may perform channel decoding.

To this end, the first demodulator 430 may include a convolution decoder, a deinterleaver, a reed-soloman decoder, and the like to perform convolutional decoding, deinterleaving, and reed-soloman decoding.

The external signal input unit 428 performs signal input with an external device. To this end, the external signal input unit 428 may include an A / V input / output unit and a wireless communication unit.

The external signal input unit 428 is connected to an external device such as a digital versatile disk (DVD), a Blu-ray, a game device, a camcorder, a computer (laptop), and the like to input an external input video signal, an external input audio signal, and an external input data. The signal is transmitted to the controller 460 in the display device. In addition, the video signal, the audio signal, and the data signal processed in the controller 460 may be output to another external device.

The A / V input / output section is for inputting / outputting video / audio signals to / from external devices, including Ethernet, USB, Composite Video Banking Sync (CVBS), Component, and S-Video (analog). It may include a DVI (Digital Visual Interface) terminal, HDMI (High Definition Multimedia Interface) terminal, RGB terminal, D-SUB terminal, IEEE 1394 terminal, SPDIF terminal, Liquid (HD) terminal.

Meanwhile, although not shown in the drawing, various input signals input through the external signal input unit 428 may be input to the channel browsing processor 470 to be described later to perform a thumbnail image extraction process.

For example, an analog signal input through the CVBS terminal and the S-video terminal may be converted into a digital signal and then input to the channel browsing processor 470 as described above. Digital signals input through other input terminals may be directly input to the channel browsing processor 470 without analog / digital conversion.

Here, the digital signal output from the external signal input unit 428 may be a stream signal. For example, an MPEG-2 TS multiplexed with an MPEG-2 standard video signal, a Dolby AC-3 standard audio signal, or the like. (Transprt Stream).

The wireless communication unit may perform a wireless internet connection. For example, for wireless Internet access, a wireless local area network (WLAN) (Wi-Fi), a wireless broadband (Wibro), a world interoperability for microwave access (Wimax), a high speed downlink packet access (HSDPA), or the like may be used. .

In addition, the wireless communication unit may perform near field communication with other electronic devices. For example, Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, etc. may be used.

Meanwhile, the external signal input unit 428 may be connected through at least one of the various set top boxes and the various terminals described above, and perform input / output operations with the set top box.

For example, when the set-top box is a set-top box for an Internet Protocol (IP) TV, video, audio, and data signals processed by the set-top box for IPTV may be transmitted to the controller 460 to enable bidirectional communication. The signal processed by the controller 460 may be transferred to the set-top box for IPTV.

Meanwhile, the video, audio, and data signals processed by the IPTV set-top box may be processed by the controller 460 via the channel browsing processor 470.

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

The first demodulator 430 may perform demodulation and channel decoding and output a stream signal TS 1. In this case, the stream signal TS 1 may be a signal multiplexed with a video signal, an audio signal, and a data signal. For example, the stream signal TS 1 may be an MPEG-2 TS (Transprt Stream) multiplexed with an MPEG-2 standard video signal, a Dolby AC-3 standard audio signal, and the like. In more detail, the MPEG-2 TS may include a header of 4 bytes and a payload of 184 bytes.

The stream signal TS1 is input to the controller 460 to perform demultiplexing and signal processing. In the exemplary embodiment of the present invention, the input is input to the channel browsing processor 470 before the input to the controller 460 to perform a process for channel browsing. Channel browsing operations will be described later.

On the other hand, the first demodulation unit 430 described above may be provided separately according to the ATSC method and the DVB method. That is, it can be provided as an ATSC demodulation unit and a DVB demodulation unit.

The second demodulator 435 receives the digital IF signal DIF 2 converted by the second tuner 425 to perform a demodulation operation, and outputs a stream signal TS 2. Operation of the second demodulator 435 is omitted with reference to the operation of the first demodulator 430 described above.

On the other hand, when the signal output from the second tuner 425 is an analog baseband video signal CVBS 2, it is necessary to convert the analog / digital converter 440 into a digital signal.

The analog / digital converter 440 converts an input analog signal into a digital signal. When the input signal is an image signal, sampling and quantization may be performed and converted into a digital image signal DV. The converted digital signal may be an uncoded signal. The converted digital image signal DV is input to the channel browsing processor 470 and processed.

The interface unit 450 transmits an input signal from the user to the controller 460 or transmits a signal from the controller 460 to the user. For example, the interface unit 450 may be configured such as power on / off, channel selection, screen setting, etc. from the remote controller 490 according to various communication methods such as RF (Radio Frequency) communication method and infrared (IR) communication method. The user input signal may be received or a signal from the controller 460 may be transmitted to the remote controller 490.

The controller 460 may demultiplex the input stream and signal-process the demultiplexed signals to generate and output signals for video and audio output. In addition, the overall operation of the display device can be controlled.

Although not illustrated, the controller 460 may include a demultiplexer, an image processor, a voice processor, and a user input signal processor.

The controller 460 may demultiplex the input stream signal, for example, MPEG-2 TS, and divide the stream signal into a video signal, an audio signal, and a data signal, respectively.

In addition, the controller 460 may perform image processing of the demultiplexed image signal. For example, when the demultiplexed video signal is an encoded video signal, it may be decoded. Specifically, when the demultiplexed video signal is an encoded video signal of MPEG-2 standard, it may be decoded by an MPEG-2 decoder. In addition, when the demultiplexed video signal is a video signal of the H.264 standard according to the Digital Multimedia Broadcasting (DMB) scheme or DVB-H, it may be decoded by the H.264 decoder.

In addition, the controller 460 may process brightness, tint, and color of the image signal.

The image signal processed by the controller 460 is input to the display unit 480 to be displayed. It is also possible to input to an external output terminal connected to the external output device.

In addition, the controller 460 may perform voice processing of the demultiplexed voice signal. For example, if the demultiplexed speech signal is a coded speech signal, it can be decoded. Specifically, when the demultiplexed speech signal is an encoded speech signal of MPEG-2 standard, it may be decoded by an MPEG-2 decoder.

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

In addition, the controller 460 may process base, treble, volume control, and the like.

The voice signal processed by the controller 460 is input to the voice output unit 485, for example, a speaker, and outputs voice. It is also possible to input to an external output terminal connected to the external output device.

In addition, the controller 460 may perform data processing of the demultiplexed data signal. For example, when the demultiplexed data signal is an encoded data signal, it may be decoded. The encoded data signal may be EPG (Electronic Progtam Guide) information including broadcast information such as a start time and an end time of a broadcast program broadcasted in each channel.

For example, the EPG information may be TSC-PSIP (ATSC-Program and System Information Protocol) information in the ATSC scheme, and may include DVB-Service Information (DVB-SI) in the DVB scheme. The ATSC-PSIP information or the DVB-SI information may be information included in the aforementioned stream, that is, the header (4 bytes) of the MPEG-2 TS.

In addition, the controller 460 may perform an on screen display (OSD) process. Specifically, the control unit 460 based on the image-processed video signal, at least one of the data-processed data signal and the user input signal from the remote controller 490, various information on the screen of the display unit 480 It can generate a signal for displaying a graphic or text. The generated signal may be input to the display unit 480 together with the image processed image signal and the data processed data signal.

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

The channel browsing processor 470 may perform a browsing process on at least one of a broadcast signal corresponding to a received channel and various input image signals input through the external signal input unit 428.

In detail, the demodulators 430 and 135 receive the demodulated and channel decoded stream signals TS 1 or TS 2, the stream signals from the external input signal input unit 428, or the analog / digital converters ( An image signal including the digital signal DV converted in operation 440, demultiplexing the stream signal TS 1 or TS 2, extracting some of the demultiplexed image signals, and including the extracted image signal The new stream signal TSa may be output by multiplexing on the basis of. For example, the stream signal TSa or TSb may be MPEG 2 TS.

In addition, the channel browsing processor 470 may output the main stream signal TSb corresponding to the main video signal displayed in the main area among the video signals displayed on the display 480 without any additional processing. The sub stream signal TSa corresponding to the sub video signal displayed in the sub region among the video signals displayed at 480 may be output by performing channel browsing processing as described above.

When the channel browsing processor 470 extracts some images of various external input images input through the external signal input unit 428 and re-encodes them in a stream form, the channel input processing unit 470 displays a plurality of external input lists on the display unit 480. At least a part of the external input image from the external input device may be displayed on the screen in the form of a thumbnail. Accordingly, the user can intuitively know the content input from the external input device.

Meanwhile, the channel browsing processor 470 extracts the broadcast signal image of the channel and the partial image of the external input image and re-encodes the image in a stream form, thereby displaying the channel list and the external input list on the display unit 480. In this case, at least a part of a broadcast signal image of a plurality of channels and an external input image from a plurality of external input devices may be displayed on a screen in a thumbnail form.

Accordingly, the user can intuitively know the contents input from the plurality of channels and the external input device.

The storage unit 475 may store a program for processing and controlling each signal in the controller 460, or may store a signal processed video signal, an audio signal, and a data signal.

In addition, the storage unit 475 may perform a function for temporarily storing an image, audio, or data signal input from the external signal input unit 428.

Meanwhile, the storage unit 475 may store a corresponding broadcast channel through a channel memory function, and for this purpose, a flash memory type, a hard disk type, and a multimedia card micro type may be used. type), a card type memory (eg, SD or XD memory, etc.), a RAM, or a ROM (EEPROM, etc.) of at least one type of storage medium.

In the drawing, the storage unit 475 is illustrated as being provided separately from the control unit 460, but is not limited thereto. The storage unit 475 may be included in the control unit 460.

On the other hand, the display device may be provided to the user by playing the file (video file, still image file, music file, document file, etc.) stored in the storage unit 475.

The display unit 480 converts an image signal, a data signal, an OSD signal processed by the controller 460, or an image signal, data signal, etc. received from the external signal input unit 428 into R, G, and B signals, respectively. Create

The display unit 480 may be implemented in various forms such as a PDP, an LCD, an OLED, a flexible display, a 3D display, and the like. In addition, the display unit 480 may be configured as a touch screen to be used as an input device in addition to the output device.

The voice output unit 485 receives a signal processed by the controller 460, for example, a stereo signal, a 3.1 channel signal, or a 5.1 channel signal, and outputs the voice. The voice output unit 485 may be implemented as various types of speakers.

The remote control device 490 transmits a user input to the interface unit 450. To this end, the remote control device 490 may use Bluetooth, Radio Frequency (RF) communication, Infrared (IR) communication, Ultra Wideband (UWB), ZigBee (ZigBee), or the like.

In addition, the remote control apparatus 490 may receive an image signal, an audio signal, a data signal, etc. from the interface unit 450 and output the same.

Meanwhile, in FIG. 9, the display device includes two tuners 420 and 125, but the present invention is not limited thereto and may include one or three tuners.

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

FIG. 10 is a block diagram illustrating an embodiment of a configuration of a display system, in which the illustrated display system includes a network operator 510, a content provider (CP) 520, a service provider 530, and a network TV. 540.

The network operator 510 may provide the network TV 540 with the base software necessary for the contents provided by the content provider 520 to operate normally in the network TV 540. In addition, the content provider 520 may provide the hardware information of the network TV 540 required for the content to be normally executed in the network TV 540.

For example, the network operator 510 provides a main screen configured when contents provided by content providers are displayed on the network TV 540, and a user selects content or inputs various commands and outputs accordingly. A user interface for displaying can be provided. In addition, the user interface may provide information for updating firmware or software of the network TV 540 whenever necessary.

The content provider 520 may generate various contents that can be provided on the network, configure the content in a format that can be played on the network TV 540, and provide the contents according to a request of the network TV 540. The content can be any data that can be serviced over a network.

The network TV 540 may be equipped with dedicated firmware for reproducing, searching, and displaying a list of contents for each content provider 520. The firmware may be installed in the network TV 540 during the manufacturing process of the network TV 540 or may be downloaded and installed by the user through the network during use.

The firmware of the network TV 540 may be a program for playing or executing content provided by the content provider 520. The firmware may vary depending on the type of content provided by the content provider 520. For example, when the content provider 520 is a VOD provider, the firmware may be a VOD player program, and when the content provider 520 is an AOD or MOD provider, the firmware may be an AOD or MOD player program.

In addition, when the content provider 520 is a video communication service provider, the content provider 520 may be a video communication program.

The service provider 530 may be an Internet service provider that provides network communication between the network operator 510, the content provider 520, and the network TV 540.

The network may include any wired or wireless Internet network using the Internet protocol. In particular, the service provider 530 transmits the content provided by the content provider 520 to the network TV 540, performs maintenance management of the transmission network so that the user can be stably received the content, and the content provider ( 520 may provide an infrastructure for transmitting content.

The network TV 540 receives and plays or executes content through the service provider 530 in response to a user's command. According to an exemplary embodiment, the network TV 540 may include any device equipped with a network module such as a broadcast receiving device such as a network set-top box or a telephone for a network.

For example, the content provider 520 may be a provider of various types of content to be provided to the network TV 540. The content provider 520 may include a TV station, a radio station, a VOD operator, an AOD operator, a game operator, a video communication service provider, a weather information provider, a photo related service provider, and the like.

More specifically, the video communication service provider may provide a relay service for making a video call with a user of another network TV through the network.

The service provider 530 is a medium for transmitting data and commands of the network operator 510, the content provider 520, and the network TV 540. The service provider 530 may be a typical wired or wireless Internet service provider. In addition, the service provider 530 provides communication network hardware so that the network operator 510, the content provider 520, and the network TV 540 can communicate with each other. A communication service can be performed.

The network TV 540 basically has a network interface capable of accessing the network, receives an IP address, processes a data packet through the network, and stores or plays the data packet when the data packet is multimedia data such as video or audio. have.

In addition, the network TV 540 may operate to transmit the user's requirements in both directions while processing the multimedia data. For this purpose, the remote control for controlling the network TV 540 includes buttons for controlling the network TV, That is, buttons for selecting various menus may be provided.

11 is a block diagram illustrating a configuration of a display apparatus according to an exemplary embodiment of the present invention, and illustrates a configuration of the network TV 540 illustrated in FIG. 10.

Referring to FIG. 11, in addition to a function of receiving content through a network, the network TV 540 may have a function of receiving a broadcast signal in the form of an RF signal through a radio or a cable through the broadcast receiving unit 541. .

The network TV 540 includes a broadcast receiver 541, a demultiplexer 542, a video signal processor 543, a display 544, a network interface 545, an OSD generator 546, and a user input 547. ), A storage unit 548, a memory unit 549, and a controller 550.

The broadcast receiver 541, the demultiplexer 542, and the image signal processor 543 may configure one broadcast processor that receives a broadcast signal and processes the broadcast signal into a form that can be output to the display unit 544 through various processes. .

When the content is digital broadcast, the digital broadcast signal may be transmitted in the form of a packetized transport stream by time division multiplexing the video signal, the audio signal and the additional data.

In addition, the broadcast receiver 541 may include an antenna for receiving a broadcast signal transmitted from the outside, and a tuner for tuning a broadcast signal having a frequency band corresponding thereto according to a tuning control signal of the controller 550 to be described later. And a demodulator (demodulator) for outputting the broadcast signal of the tuned specific channel in the form of a transport stream through a VSB (Vestigial Sideband) demodulation process and an error correction process.

In addition, the broadcast signal received through the broadcast receiver 541 is divided into various types of additional data defined as a video signal, an audio signal, and PSIP (Program and System Information Protocol) information by the demultiplexer 542, thereby forming a bit stream. Can be output as

The video data separated by the demultiplexer 542 is processed by the image signal processor 543 and displayed on the display 544.

In this case, the video signal processing unit 543 may include an MPEG-2 decoder and a scaler for converting video data to match the vertical frequency, resolution, aspect ratio, etc., of the output standard of the display unit 544.

The additional data included in the additional data separated by the demultiplexer 542 may be stored in the memory unit 549 through the storage unit 548, which will be described later, and the memory unit 549 may be electrically erasable programmable read. -only memory).

The user input unit 547 is a means for receiving a request command from the user, and generally includes an infrared receiver for receiving an infrared signal input through a remote controller or a local key input unit provided at one side of the panel.

The network interface unit 545 may receive content or data from the content provider 520 or the network operator 510 through a network, and for example, a broadcast, game, VOD, and broadcast signal provided from the content provider through the network. Content and related information thereof may be received. In addition, the update information and the update file of the firmware provided by the network operator 510 may be received through the network interface unit 545.

The OSD generator 546 generates a menu screen in the form of an OSD (On Screen Display) for receiving a user's determination signal. That is, the OSD generator 546 may display information related to the content received through the network interface 545 through the display.

The controller 550 performs overall operation control according to the command input from the user input unit 547, and receives and executes an update file of software, that is, firmware, of the content provider 520 received from the network operator 510. have.

The above-described stereoscopic image reproducing method according to the present invention may be stored in a computer-readable recording medium that is produced as a program for execution on a computer, and examples of the computer-readable recording medium include ROM, RAM, CD-ROM. Magnetic tapes, floppy disks, optical data storage devices, and the like, and also include those implemented in the form of carrier waves (eg, transmission over the Internet).

The computer readable recording medium can be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion. In addition, functional programs, codes, and code segments for implementing the control method can be easily inferred by programmers in the art to which the present invention belongs.

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

Claims (17)

Detecting a change in the position of the remote controller;
Obtaining movement information according to the detected position change;
And adjusting the photographing state of the camera in response to the movement information. The method of claim 1,
The movement information
And controlling at least one of a moving direction and a moving distance according to a change in the position of the remote controller. The method of claim 1,
The movement information,
And a method obtained by moving the remote controller in a specific direction with respect to a specific axis of the remote controller. The method of claim 2,
When the moving distance is less than the critical distance,
And a photographing state of the camera is not controlled. The method of claim 1,
The shooting state is
And controlling at least one of a shooting direction, zoom in / out, and focus adjustment of the camera. The method of claim 1,
Position change of the remote control is an operation control method of the display device is detected by any one of the ultrasonic sensor, infrared sensor. The method of claim 1,
The remote control is an operation control method of the display device which is any one of an RF remote control or an IR remote control. The method of claim 1,
Receiving a camera adjustment signal via key input from the remote control;
And adjusting the photographing state of the camera according to the received camera adjustment signal. camera;
A sensor unit for detecting a change in position of the remote controller and obtaining movement information according to the change in position;
And a controller configured to adjust a photographing state of the camera in response to the movement information. 10. The method of claim 9,
The movement information
And at least one of a moving direction and a moving distance according to a change in the position of the remote controller. 10. The method of claim 9,
The movement information,
And display information obtained by moving the remote controller in a specific direction with respect to a specific axis of the remote controller. The method of claim 10, wherein the control unit
The display apparatus does not adjust the photographing state of the camera, if the moving distance of the remote control is less than or equal to the threshold distance. 10. The method of claim 9,
The photographing state is,
Display device including at least one of the shooting direction, the zoom in / out and focus adjustment of the camera 10. The method of claim 9,
The sensor unit is any one of an ultrasonic sensor, an infrared sensor. 10. The method of claim 9,
The remote control device is any one of an RF remote control or an IR remote control. 10. The method of claim 9,
Further comprising a user input unit for receiving a camera adjustment signal through the key input from the remote control,
And the controller is configured to adjust the photographing state of the camera in response to the camera adjustment signal received through the user input unit. A computer-readable recording medium having recorded thereon a program for executing the method according to any one of claims 1 to 8.

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