KR20110072979A - Apparatus for displaying image and method for operating the same - Google Patents

Abstract

The present invention relates to an image display apparatus and an operation method thereof. According to an exemplary embodiment of the present invention, a method of operating an image display apparatus includes turning off a power source, turning on a power source, and varying a volume at power off so that a power is turned on in a silent mode. It includes a step. As a result, the user's convenience is improved.

Power On, Volume Adjustable

Description

Apparatus for displaying image and method for operating the same}

The present invention relates to a method of operating an image display device, and more particularly, to an image display device and a method of operating the same that can improve user convenience.

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

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

In such a digital broadcasting environment, a remote control device is being developed to increase user convenience.

Accordingly, an object of the present invention is to provide an image display apparatus and an operation method thereof that can improve user convenience.

In accordance with an aspect of the present invention, there is provided a method of operating an image display apparatus, the method comprising: turning off a power supply, turning on a power supply, and outputting a power at a set volume when the power is turned on in a silent mode. Varying the volume at off time.

In addition, the image display device according to an embodiment of the present invention for achieving the above object, a display, a remote control device for inputting the power on in the power off or silent mode, and the power is turned on in the silent mode, It includes a control unit for controlling to vary the volume at the time of power off so that the output.

According to the present invention, the power can be turned on in silent mode when the power is turned on, and thus the set volume can be output. This increases the user's ease of use.

On the other hand, by inputting a combination of numeric keys of the remote control device or the numeric keys for a predetermined time or more, it is possible to change the channel or immediately enter the external input mode at power-on, thereby increasing user convenience.

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

The suffixes "module" and "unit" for components used in the following description are merely given in consideration of ease of preparation of the present specification, and do not impart any particular meaning or role by themselves. Therefore, the "module" and "unit" may be used interchangeably.

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

Referring to FIG. 1, the image display apparatus 100 according to an exemplary embodiment of the present invention includes a tuner 120, an external signal input / output unit 128, a demodulator 130, an interface unit 150, and a controller 160. , A storage unit 175, a display 180, and an audio output unit 185.

The tuner 120 selects an RF broadcast signal corresponding to a channel selected by a user or all pre-stored channels among RF (Radio Frequency) broadcast signals received through an antenna. In addition, the selected RF broadcast signal is converted into an intermediate frequency signal or a baseband video / audio signal.

For example, if the selected RF broadcast signal is a digital broadcast signal, it is converted into a digital IF signal (DIF). If the analog broadcast signal is converted into an analog baseband video / audio signal (CVBS / SIF). That is, the tuner 120 may be a hybrid tuner capable of processing digital broadcast signals and analog broadcast signals. The analog baseband video / audio signal CVBS / SIF output from the tuner 120 may be directly input to the controller 160.

In addition, the tuner 120 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, as described below. Do.

Meanwhile, in the present invention, the tuner 120 sequentially and periodically selects corresponding RF broadcast signals of all broadcast channels stored through a channel memory function among RF broadcast signals received through an antenna, and then selects an intermediate frequency signal or a base. It is also possible to convert to a band video / audio signal. This is for illustrating a thumbnail list including a plurality of thumbnail images corresponding to a broadcast channel on the display 180. Accordingly, the tuner 120 may sequentially and periodically receive the RF broadcast signals of the selected channel or all pre-stored channels.

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

The external signal input / output unit 128 is connected to an external device such as a DVD (Digital Versatile Disk) player, a Blu-ray player, a game device, a camcorder, a computer (notebook), and an external input video signal or an external input audio signal. , And transmits the external input data signal to the controller 160 in the image display apparatus 100. In addition, the video signal, the audio signal, and the data signal processed in the controller 160 may be output to another external device.

The A / V input / output unit uses an Ethernet terminal, a USB terminal, a Composite Video Banking Sync (CVBS) terminal, a component terminal, and an S-video terminal (analog) for inputting / outputting video / audio signals with an external device. ), A DVI (Digital Visual Interface) terminal, an HDMI (High Definition Multimedia Interface) terminal, an RGB terminal, a D-SUB terminal, an IEEE 1394 terminal, an SPDIF terminal, a Liquid HD terminal, and the like.

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 / output unit 128 may be connected through at least one of the various set top boxes and the various terminals described above to perform input / output operations with the set top box.

For example, when the set-top box is a set-top box for an IP (Internet Protocol) TV, video, audio, and data signals processed by the set-top box for IPTV may be transmitted to the controller 160 to enable bidirectional communication. Signals processed by the controller 160 may be transferred to the set-top box for IPTV.

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

For example, when the digital IF signal DIF output from the tuner 120 is an ATSC scheme or a DVB scheme, the demodulator 130 may perform 8-VSB (8-Vestigal Side Band) demodulation or OFDMA (Coded Orthogonal Frequency). Division Modulation) Performs demodulation. In addition, the demodulator 130 may perform channel decoding.

The demodulator 130 may perform demodulation and channel decoding and output a stream signal TS. In this case, the stream signal TS may be a signal multiplexed with a video signal, an audio signal, and a data signal. For example, the stream signal TS may be an MPEG-2 Transport Stream (TS) multiplexed with an MPEG-2 standard video signal, a Dolby AC-3 standard audio signal, and the like. In more detail, the MPEG-2 TS may include a header of 4 bytes and a payload of 184 bytes.

The interface unit 150 transmits an input signal from the user to the controller 160 or transmits a signal from the controller 160 to the user.

The controller 160 may demultiplex the input stream and perform signal processing on the demultiplexed signals to generate and output signals for video and audio output. In addition, the overall operation of the image display apparatus 100 may be controlled.

Although not shown in the drawing, the controller 160 may include a demultiplexer, an image processor, an audio processor, an OSD generator, and the like.

The controller 160 may control the tuner 120 to control tuning of an RF broadcast signal corresponding to a selected channel or a pre-stored channel.

The controller 160 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. Here, the stream signal input to the controller 160 may be a stream signal from the demodulator 130 or the external signal input unit 128.

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

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

In addition, the controller 160 may perform voice processing of the demultiplexed voice signal. For example, if the demultiplexed speech signal is an encoded speech signal, it may 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 160 may process a base, a treble, a volume control, and the like.

The voice signal processed by the controller 160 is input to the audio output unit 185, for example, a speaker, to output voice. In addition, it is also possible to input to the external audio reproducing apparatus 200 connected through the external signal input and output unit 128. In particular, it is possible to output an audio signal to the external audio reproducing apparatus 200 through the HDMI terminal of the external signal input and output unit 128.

In addition, the controller 160 may perform data processing of the demultiplexed data signal. For example, when the demultiplexed data signal is an encoded data signal, it may be decoded. The encoded data signal may be EPG (Electronic Program Guide) information including broadcast information such as a start time and an end time of a broadcast program broadcasted in each channel. For example, the EPG information may be TSC-PSIP (ATSC-Program and System Information Protocol) information in the ATSC scheme, and may include DVB-SI (DVB-Service Information) 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 160 may perform an on screen display (OSD) process. Specifically, the controller 160 may graphically display various types of information on the display 180 based on at least one of an image processed image signal, a data processed data signal, and a user input signal from the remote controller 200. You can create a signal to display in either Graphic or Text. The generated signal may be input to the display 180 together with the image processed image signal and the data processed data signal.

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

In addition, the controller 160 receives an analog baseband video / audio signal CVBS / SIF and performs signal processing. Here, the analog baseband video / audio signal CVBS / SIF input to the controller 160 may be an analog baseband video / audio signal from the tuner 120 or the external signal input unit 128. The signal processed image signal is input to the display 180 and is displayed. The signal processed audio signal is input to the audio output unit 185, for example, a speaker, to output audio.

On the other hand, when the power is turned on in the silent mode, the control unit 160 controls to vary the volume at the time of power off so that the output to the set volume.

In addition, the controller 160 controls to change the channel at power off when the power on is input from the remote controller in the channel change mode.

In addition, when the power-on is input in the external input change mode, the controller 160 controls to change the display of the external input at the time of power-off.

The storage unit 175 may store a program for processing and controlling each signal in the controller 160, or may store a signal processed video signal, an audio signal, and a data signal.

In addition, the storage unit 175 may perform a function for temporarily storing an image, audio, or data signal input from the external signal input / output unit 128.

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

In addition, the storage unit 175 may store the set volume in the silent mode, the set channel in the channel change mode, and the set external input mode in the external input change mode. Accordingly, the controller 160 may control to change the volume variable, the channel variable, or the external input mode according to the contents stored in the storage unit 175.

The storage unit 175 may include a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), It may include at least one type of storage medium such as RAM, ROM (EEPROM, etc.).

In the drawing, the storage unit 175 is illustrated as being provided separately from the control unit 160, but is not limited thereto. The storage unit 175 may be included in the control unit 160.

On the other hand, the image display apparatus 100 may play back files (video files, still image files, music files, document files, etc.) stored in the storage unit 175 and provide them to the user.

The display 180 converts an image signal, a data signal, an OSD signal, or an image signal, data signal, etc. received from the external signal input / output unit 128, processed by the controller 160, into R, G, and B signals, respectively. Generate a signal. The display 180 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 180 may be configured as a touch screen and used as an input device in addition to the output device.

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

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

In addition, the remote control apparatus 200 may receive a video signal, an audio signal, a data signal, etc. from the interface unit 150 and output the same.

Meanwhile, although one tuner is shown in the drawing, it is possible to use a plurality of tuners.

The video display device 100 described above is a fixed type of ATSC (8-VSB) digital broadcasting, DVB-T (COFDM) digital broadcasting, ISDB-T (BST-OFDM) digital broadcasting, and the like. It may be a digital broadcast receiver capable of receiving at least one of the above, and is a mobile type of digital broadcasting of terrestrial DMB system, digital broadcasting of satellite DMB system, digital broadcasting of ATSC-M / H system, DVB-H system (COFDM system) It may be a digital broadcast receiver capable of receiving at least one of digital broadcasting and digital broadcasting of a media flow link only method. It may also be a digital broadcast receiver for cable, satellite communications, or IPTV.

On the other hand, the video display device described in the present specification is a TV receiver, a mobile phone, a smart phone (notebook computer), a digital broadcasting terminal, PDA (Personal Digital Assistants), PMP (Portable Multimedia Player), etc. May be included.

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

2 is a flowchart illustrating a method of operating an image display apparatus according to an exemplary embodiment of the present invention, and FIGS. 3 to 6 are views for explaining an exemplary embodiment of the present invention.

First, an image is displayed (S210). The displayed image may be a broadcast image of a broadcast signal received from the tuner 120, an image of content stored in the storage unit 165, or an external input image of an external device connected to the external signal input / output unit 128. When displaying each image, the volume of audio output from the audio output unit 185 may be a first volume.

Next, the power supply is turned off (S215). When the power key 410 of the remote control apparatus 400 is operated, the power of the image display apparatus 100 is turned off. At this time, the storage unit 165 stores a first volume which is an audio volume at power off.

Next, turn on the power (S220). In operation S220, it is determined whether the mode is silent. When the power key 410 of the remote control apparatus 400 is operated, the power of the image display apparatus 100 is turned on. At this time, the controller 160 determines whether the mode is silent.

The silent mode may be performed by an operation of the silent mode key 420 of the remote controller 400. In addition, it may be performed by a numeric input or a combination of numeric keys of the remote control device 400.

If not in silent mode, the volume at power off is maintained as is (S230). The controller 160 controls to maintain the first volume, which is the audio volume stored in the storage unit 165 at power off.

3 illustrates maintaining the volume at power off. As shown in FIG. 3A, when the broadcast video 310 of the predetermined channel DTV11-1 is displayed and the first volume (for example, level 20) is output, the power is turned off. The DTV11-1 and the first volume are stored in the storage unit 165. As shown in FIG. 3C, when the power is turned on again, the broadcast video 330 and the first volume (eg, level 20) of the channel DTV11-1 are output as they are.

Next, in the silent mode, it is determined whether the channel change mode (S235). If not in the channel change mode, it is changed to the set volume (S240).

The second volume set here is preferably lower than the first volume. When a baby is sleeping at home or when a quiet environment is required, turning on the power in silent mode may output a volume smaller than the volume at the time of power-off, thereby increasing user convenience. In particular, while powering on, the user can immediately set to silent mode.

The manner of operation of the manner mode is that the power key 410 and the manner mode key 420 of the remote control device 400 shown in FIG. 4 operate in sequence, or the manner mode key 420 and the power key 410 in order. Or may be performed by a silent operation of the manner mode key 420.

Meanwhile, the operation of the channel change mode may be performed by the numeric keys alone or a combination thereof of the remote controller 400 shown in FIG. 4.

The storage unit 165 may store the second volume as set in advance. For example, the second volume can be level two. Meanwhile, the level of the first volume described above may be 20.

 5 illustrates changing the volume at power off. As shown in FIG. 5A, when the broadcast video 510 of the predetermined channel DTV11-1 is displayed and the first volume (for example, level 20) is output and the power is turned off, the corresponding channel The DTV11-1 and the first volume are stored in the storage unit 165. As shown in FIG. 5C, when the power is turned on in the silent mode, the set second volume (for example, level 2), not the first volume (for example, level 20) stored in the storage unit 165. Variable). The display 180 displays a broadcast image 530 of the corresponding channel DTV11-1. Accordingly, the user can watch the broadcast video in a quiet environment.

On the other hand, in the channel change mode, it is changed to the set volume and channel (S245).

On the other hand, although not shown in the figure, in the external input change mode, it is also possible to change to the set external input mode.

The operation of the channel change mode or the external input change mode may be performed by the numeric keys alone or a combination thereof of the remote controller 400 shown in FIG. 4.

For example, as shown in Table 1 below, a channel change mode or an external input change board can be set.

Number keys Keystroke time Setting channel or external input mode volume brightness ... One 3 sec 11-1 10 70 ... 2 3 sec 6- 2 50 ... 3 5 sec HDMI 2 50 ... ... ... ... ... ... ...

That is, according to the input of the numeric key or the input time, it is possible to enter the channel change mode, the manner mode or the external input change mode as set. In addition, various examples, such as brightness setting, are possible.

The input of the numeric key may be input after the operation of the power key 410 or may be input before the power key 410.

6 illustrates varying the channel and volume at power off. As shown in FIG. 6A, when the broadcast video 610 of the predetermined channel DTV11-1 is displayed and the first volume (for example, level 20) is output, the power is turned off. The DTV11-1 and the first volume are stored in the storage unit 165.

When the power is on, as shown in Table 1, when the numeric key '2' is pressed for 3 seconds or more, it immediately enters the silent mode and the channel change mode.

As shown in FIG. 6C, the set channel DTV6-1 and the second volume (eg, not the channel DTV11-1 and the first volume (eg, level 20), which are stored in the storage unit 165). For example, it changes to level 2). The display 180 displays the broadcast video 630 of the channel DTV6-1. Accordingly, the user can move directly to the desired channel. In addition, the user can watch the broadcast video in a quiet environment.

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

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

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

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

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

3 to 6 are views referred to for explaining an embodiment of the present invention.

Claims (11)

Turning off the power; Turning on the power; And And when the power is turned on in the silent mode, varying the volume at the time of turning off the power to output the set volume. The method of claim 1, And changing the channel when the power is turned off when the power is turned on in the channel change mode. The method of claim 1, The manner mode is Operating method of an image display device, characterized in that performed by the input of the manner mode key of the remote control device. The method of claim 2, The channel change mode, A method of operating a video display device, characterized in that performed by a combination input of a numeric key of a remote control device or input for a predetermined time or more of the numeric key. The method of claim 1, And when the power is turned on in the external input change mode, varying the external input display when the power is turned off. The method of claim 5, The external input change mode, A method of operating a video display device, characterized in that performed by a combination input of a numeric key of a remote control device or input of the numeric key for a predetermined time or more. display; A remote control device for inputting power on in power off or silent mode; And And a control unit which controls to vary the volume when the power is turned off to be output at a set volume when the power is turned on in the silent mode. The method of claim 7, wherein The remote control apparatus includes a manner mode key. The method of claim 7, wherein A tuner for receiving a broadcast signal of a selected channel or a broadcast signal of a pre-stored channel; And the controller controls to change the channel at the time of power-off when the power-on is input from the remote controller in the channel change mode. 10. The method of claim 9, The channel change mode, And an input of a combination of numeric keys of the remote control device or input of the numeric keys for a predetermined time or more. The method of claim 7, wherein And an external signal input / output unit for transmitting or receiving data with an external device. And the control unit controls to change the display of the external input when the power is turned off when the power-on is input from the remote controller in the external input change mode.

Images