KR20150093491A - Image display device and control method for the image display device - Google Patents

Abstract

The present invention relates to an image output apparatus outputting a broadcast or a video and a control method thereof. The image output apparatus according to an embodiment of the present invention includes an output unit outputting audio-visual information, a detection unit detecting a user voice applied to the image output apparatus in a deactivation mode, wherein the output of the audio-visual information is limited, and a control unit switching the deactivation mode to an activation mode outputting the audio-visual information based on the user voice, wherein the control unit is characterized by determining volume of the audio-visual information based on a level of the detected voice.

Description

TECHNICAL FIELD [0001] The present invention relates to a video output apparatus and a control method thereof,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video output device, and more particularly, to a video output device and a control method thereof for outputting broadcasting or moving images.

The video output device includes a device for receiving and displaying a broadcast, a device for recording and reproducing a moving image, and a device for recording and reproducing audio. The video output device includes, for example, a television, a computer monitor, a projector, a tablet, and the like.

As the functions of such video output devices are diversified, a multimedia device (multimedia player) having a complex function of shooting a picture or video, receiving a game, receiving a broadcast, etc. in addition to the function of broadcasting, . Furthermore, in recent years, video output devices have been implemented as smart devices (for example, smart TVs). Therefore, the video output device operates in conjunction with a mobile terminal or a computer as well as the execution of the Internet.

However, the increase of the function of the video output device as described above has a disadvantage that the boot time is increased. Therefore, it may be considered to improve the structural part and the software part of the video output device in order to facilitate user's convenience with respect to booting of the video output device.

An object of the present invention is to provide a video output device and a control method thereof, in which the determined audiovisual information is output after the volume or output brightness of audiovisual information is determined based on the size of a user's voice or a surrounding situation.

The video output device according to an embodiment of the present invention includes an output unit for outputting audiovisual information, a sensing unit for sensing a user's voice applied to the video output device in a deactivation mode in which output of the audiovisual information is limited, The control unit may switch the inactivation mode to the activation mode in which the audiovisual information is output. The controller may determine the volume of the audiovisual information based on the size of the detected voice.

In one embodiment, the controller may determine the volume of the audiovisual information in proportion to the size of the detected voice.

In one embodiment, the controller compares the size of the detected voice with a predetermined reference size, and when the size of the detected voice is larger than the reference size, the controller determines the volume of the audio-visual information as a first level And determine the volume of the audiovisual information as a second level smaller than the first level when the size of the detected voice is smaller than the reference size.

In one embodiment, the sensing unit senses the noise of the user around the video output device in addition to sensing the voice of the user in the deactivation mode, and the control unit senses the size of the sensed noise, Size of the audio-visual information can be determined, and the volume of the audio-visual information can be determined based on the comparison result.

In one embodiment, the controller determines the volume of the audiovisual information based on the size of the detected voice if the size of the noise is smaller than the size of the user's voice, The volume of the audiovisual information can be determined as a volume larger than the size of the noise.

In one embodiment, the controller determines the volume of the audiovisual information as a volume larger than the size of the noise when the detected noise size is larger than a preset size, and displays contents included in the audiovisual information The output unit can be controlled so that a subtitle is output.

In one embodiment, the sensing unit may include a distance sensor that senses a distance between the video output device and the user, and when the user is located within a first reference distance based on the video output device, Wherein the control unit restricts the volume of the audiovisual information based on the size of the detected voice when the user is located outside the first reference distance based on the video output device, The volume of the audiovisual information can be determined.

In one embodiment, the controller determines the volume of the audiovisual information and the output brightness of the audiovisual information together based on the size of the sensed voice, and the output brightness of the audiovisual information is determined based on the size of the sensed voice .

In one embodiment, the sensing unit senses the brightness of the surroundings of the video output device based on the user's voice being sensed in the inactivation mode, and the control unit controls the brightness of the audiovisual information The output brightness can be determined.

In one embodiment, when the audiovisual information is output in a volume determined based on the size of the sensed voice, guide information indicating that the volume of the audiovisual information is determined by the size of the user voice is output The output unit can be controlled.

In one embodiment, the control unit changes the volume of the audiovisual information to the volume most recently set before the volume of the audiovisual information is changed based on the size of the user's voice, The user can change the volume of the audiovisual information to the most recently set volume.

A method of controlling a video output device according to an exemplary embodiment of the present invention is a video output device for outputting audiovisual information, the method comprising: detecting a user's voice applied to the video output device in a deactivation mode in which output of the audiovisual information is limited; , Switching the inactivation mode to an activation mode in which audiovisual information is output based on the sensed voice and determining a volume of the audiovisual information based on the size of the sensed voice, And outputting the audiovisual information.

In one embodiment, the volume of the audiovisual information may be determined in proportion to the size of the detected voice.

In one embodiment, the volume of the audiovisual information may be determined by comparing a volume of the audiovisual information with a volume of the audiovisual information when the size of the sensed voice is larger than the reference size, 1 level, and when the size of the detected voice is smaller than the reference size, the volume of the audiovisual information may be determined as a second level lower than the first level.

In one embodiment, the method further comprises determining an output brightness of the audiovisual information based on the size of the detected voice, and the step of outputting the audiovisual information may include outputting the audiovisual information with the determined volume and output brightness can do.

According to the present invention, the volume of audiovisual information can be determined based on the size of the user's voice, and the audiovisual information can be output with the determined volume. Further, the output brightness of the audiovisual information can be determined based on the size of the user's voice, and the audiovisual information can be output with the determined output brightness. Accordingly, by outputting the audiovisual information while determining the volume or output brightness of the audiovisual information so that the video output device matches the user's intention, the user must adjust the volume or output brightness according to the situation after the audiovisual information is output The hassle can be removed.

According to the present invention, it is possible to determine the volume or output brightness of audiovisual information based on not only the user's voice but also the noise, the distance between the video output device and the user, or the surrounding brightness, and output audiovisual information with the determined volume or output brightness . Therefore, the user can view the audiovisual information in an optimum state according to a given situation.

1 is a block diagram for explaining a video output device and an external input device related to the present invention.
FIG. 2 is a block diagram for explaining the external input device of FIG. 1 in more detail.
3 is a block diagram for explaining a mutual operation of the video output device and the external input device according to the present invention.
4 is a flowchart illustrating a method of controlling a video output device according to an exemplary embodiment of the present invention.
5A, 5B, 5C, and 5D are conceptual diagrams for explaining a method for a video output device according to an exemplary embodiment of the present invention to determine the volume of audiovisual information based on the size of a user's voice.
6A and 6B are conceptual diagrams for explaining a method for a video output device according to an embodiment of the present invention to determine the volume of audiovisual information based on the size of a user's voice and the size of noise.
7 is a conceptual diagram for explaining a method of determining a volume of audiovisual information based on a size of a user's voice and a distance between a video output device and a user detected by a distance sensor according to an embodiment of the present invention to be.
8A and 8B are conceptual diagrams for explaining a method of determining a brightness of audiovisual information and a brightness of audiovisual information based on the size of a user's voice according to an embodiment of the present invention.
9A and 9B are conceptual diagrams for explaining a method of outputting guide information and changing a volume of audiovisual information based on reception of a user request according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art can easily carry out the technical idea of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly explain the present invention, parts not related to the description are omitted, and like parts are denoted by similar reference numerals throughout the specification.

In this specification, the video output device includes both a device for receiving and displaying a broadcast, a device for recording and reproducing a moving picture, and a device for recording and reproducing audio. Hereinafter, as an example of this, a television will be described as an example.

1 is a block diagram showing a video output device 100 and an external input device 200 according to the present invention. The video output apparatus 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 an output unit 180. However, the external input device 200 may be a separate device from the video output device 100, or may be included as a component of the video output device 100. FIG.

1, a tuner 110 selects an RF broadcast signal corresponding to a channel selected by a user from among RF (Radio Frequency) broadcast signals received through an antenna, converts the RF broadcast signal into an intermediate frequency signal or a baseband image / Convert to 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 described above, the tuner 110 may be a hybrid tuner capable of processing a digital broadcasting signal and an analog broadcasting signal.

The digital IF signal DIF output from the tuner 110 is input to the demodulator 120 and the analog baseband video / audio signal CVBS / SIF output from the tuner 110 is input to the controller 160 . The tuner 120 can receive an RF broadcast signal of a single carrier according to an Advanced Television Systems Committee (ATSC) scheme or an RF broadcast signal of a plurality of carriers according to a DVB (Digital Video Broadcasting) scheme.

Although one tuner 110 is shown in the drawing, the present invention is not limited thereto. The video output 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 previously 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 manner as the first tuner.

The demodulator 120 receives the digital IF signal DIF converted by the tuner 110 and performs a demodulation operation. For example, if the digital IF signal DIF output from the tuner 110 is of the ATSC scheme, the demodulator 120 performs an 8-VSB (8-Vestigal Side Band) demodulation. At this time, the demodulator 120 may perform channel decoding such as trellis decoding, de-interleaving, and Reed-Solomon decoding. For this, the demodulator 120 may include a trellis decoder, a de-interleaver, and a Reed Solomon decoder.

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

The signal input / output unit 130 may include an A / V input / output unit (not shown) and a wireless communication unit (not shown) connected to an external device to perform signal input and output operations.

The A / V I / O section is composed of an Ethernet terminal, a USB terminal, a CVBS (Composite Video Banking Sync) terminal, a component terminal, an S- video terminal (analog), a DVI (digital visual interface) terminal, , A Mobile High-definition Link (MHL) terminal, an RGB terminal, a D-SUB terminal, an IEEE 1394 terminal, a SPDIF terminal, and a liquid HD terminal. The digital signal input through these terminals may be transmitted to the control unit 150. At this time, the analog signal inputted through the CVBS terminal and the S-video terminal may be converted into a digital signal through an analog-digital converter (not shown) and transmitted to the controller 150.

The wireless communication unit can perform a wireless Internet connection. For example, the wireless communication unit performs wireless Internet access using a WLAN (Wi-Fi), a Wibro (wireless broadband), a Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) can do. In addition, the wireless communication unit can perform short-range wireless communication with other electronic devices. For example, the wireless communication unit can perform near field wireless communication using Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee have.

The signal input / output unit 130 may be a video input / output unit for inputting video signals and audio signals provided from external devices such as a digital versatile disk (DVD) player, a Blu-ray player, a game device, a camcorder, Signals and data signals to the controller 150. [ The controller 150 can also transmit video signals, audio signals, and data signals of various media files stored in an external storage device such as a memory device, a hard disk, and the like. In addition, the video signal, audio signal, and data signal processed by the control unit 150 can be output to other external apparatuses.

The signal input / output unit 130 may be connected to a set top box, for example, a set top box for IPTV (Internet Protocol TV) through at least one of the various terminals described above to perform signal input and output operations. For example, the signal input / output unit 130 can transmit a video signal, an audio signal, and a data signal processed by the settop box for IPTV to the controller 150 so as to enable bidirectional communication, Signals to IPTV set-top boxes. Here, the IPTV may include ADSL-TV, VDSL-TV, FTTH-TV, etc. classified according to the transmission network.

The digital signal output from the demodulation unit 120 and the signal output unit 130 may include a stream signal TS. The stream signal TS may be a signal in which a video signal, an audio signal, and a data signal are multiplexed. For example, the stream signal TS may be an MPEG-2 TS (Transprt Stream) multiplexed with an MPEG-2 standard video signal, a Dolby AC-3 standard audio signal, or the like. Here, the MPEG-2 TS may include a header of 4 bytes and a payload of 184 bytes.

The interface unit 140 may receive an input signal for power control, channel selection, screen setting, etc. from the external input device 200, or may transmit the signal processed by the control unit 160 to the external input device 200 . The interface unit 140 and the external input device 200 may be connected by wire or wirelessly.

As an example of the interface unit 140, a sensor unit may be provided, and the sensor unit is configured to sense the input signal from a remote controller, for example, a remote controller.

The network interface unit (not shown) provides an interface for connecting the video output device 100 to a wired / wireless network including the Internet network. The network interface unit 230 may include an Ethernet terminal or the like for connection with a wired network and may be a WLAN (Wireless LAN) (Wi-Fi), a Wibro (Wireless) broadband), Wimax (World Interoperability for Microwave Access), and HSDPA (High Speed Downlink Packet Access) communication standards.

A network interface unit (not shown) can access a predetermined web page via a network. That is, it is possible to access a predetermined web page through a network and transmit or receive data with the server. In addition, content or data provided by a content provider or a network operator can be received. That is, it can receive contents such as a movie, an advertisement, a game, a VOD, a broadcast signal, and related information provided from a content provider or a network provider through a network. In addition, the update information and the update file of the firmware provided by the network operator can be received. It may also transmit data to the Internet or a content provider or network operator.

Also, the network interface unit (not shown) can select and receive a desired application among the applications open to the public via the network.

The control unit 150 can control the overall operation of the video output device 100. [ More specifically, the control unit 150 is configured to control generation and output of an image. For example, the controller 150 may control the tuner 110 to tuning an RF broadcast signal corresponding to a channel selected by the user or a previously stored channel. Although not shown in the figure, the controller 150 may include a demultiplexer, an image processor, a voice processor, a data processor, an OSD (On Screen Display) generator, and the like. In addition, the control unit 150 may include a CPU, a peripheral device, and the like in hardware.

The control unit 150 may demultiplex the stream signal TS, for example, the MPEG-2 TS into a video signal, a voice signal, and a data signal.

The control unit 150 may perform image processing, e.g., decoding, on the demultiplexed video signal. In more detail, the control unit 150 decodes an MPEG-2 standard-encoded video signal using an MPEG-2 decoder, and encodes the video signal in accordance with a DMB (Digital Multimedia Broadcasting) scheme or an H It is possible to decode the encoded video signal of the .264 standard. In addition, the controller 150 may perform image processing such that the brightness, tint, and color of the image signal are adjusted. The image signal processed by the control unit 150 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 control unit 150 may perform speech processing, e.g., decoding, on the demultiplexed speech signal. More specifically, the control unit 150 decodes an MPEG-2 standard-encoded audio signal using an MPEG-2 decoder, and uses an MPEG 4 decoder to decode an MPEG 4 bit sliced arithmetic coding Decodes the encoded voice signal, and decodes the encoded voice signal of the AAC (Advanced Audio Codec) standard of MPEG 2 according to the satellite DMB scheme or DVB-H using the AAC decoder. In addition, the controller 150 may process a base, a treble, a volume control, and the like. The voice signal processed in the control unit 150 may be transmitted to the audio output unit 180, for example, a speaker, or may be transmitted to an external output device.

The control unit 150 may perform signal processing on the analog baseband video / audio signal (CVBS / SIF). Here, 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 signal-processed video signal is displayed through the display unit 170, and the signal-processed audio signal is output through the audio output unit 180.

The control unit 150 may perform data processing, for example, decoding, on the demultiplexed data signal. Here, the data signal may include electronic program guide (EPG) information including broadcast information such as a start time and an end time of a broadcast program broadcasted on each channel. The EPG information includes, for example, TSC-PSIP (ATSC-Program and System Information Protocol) information in the ATSC scheme and DVB-SI information (DVB-SI information) in the DVB scheme. The ATSC-PSIP information or the DVB-SI information may be included in the header (4 bytes) of the MPEG-2 TS.

The controller 150 may perform a control operation for the OSD process. In more detail, the control unit 150 may include at least one of a video signal and a data signal, or an OSD for displaying various information in graphic or text form based on an input signal received from the external input device 200. [ Signal can be generated. The OSD signal may include various data such as a user interface screen of the video output device 100, a menu screen, a widget, and an icon.

The storage unit 160 may store a program for signal processing and control of the controller 150 or may store a video signal, a voice signal, and a data signal. The storage unit 160 may be a flash memory, a hard disk, a multimedia card micro type, a card type memory (for example, SD or XD memory), a random access (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM) Or at least one storage medium.

The display unit 170 may convert a video signal, a data signal, an OSD signal, etc. processed by the controller 150 into an RGB signal to generate a driving signal. Thus, the display unit 170 outputs an image. The display unit 170 may be a plasma display panel (PDP), a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT-LCD), an organic light emitting diode A light emitting diode (OLED), a flexible display, a three-dimensional display (3D display), and an electronic ink display (e-ink display). The display 180 may also be implemented as a touch screen to perform the functions of an input device.

The audio output unit 180 outputs the audio signal processed by the control unit 150, for example, a stereo signal or a 5.1-channel signal. The audio output unit 180 may be implemented by various types of speakers.

On the other hand, a photographing unit (not shown) for photographing a user can be further provided. The photographing unit (not shown) may be implemented by a single camera, but the present invention is not limited thereto, and may be implemented by a plurality of cameras. The image information photographed by the photographing unit (not shown) is input to the control unit 270. [

In order to detect a user's gesture, a sensing unit (not shown) having at least one of a touch sensor, a voice sensor, a position sensor, and an operation sensor may be further provided in the video output device 100 have. The signal sensed by the sensing unit (not shown) may be transmitted to the controller 150 through the user input interface unit 140.

The control unit 150 may detect the gesture of the user by combining the images photographed by the photographing unit (not shown) or sensed signals from the sensing unit (not shown).

The power supply unit (not shown) supplies the corresponding power supply throughout the video output apparatus 100. Particularly, it is possible to supply power to a control unit 150 that can be implemented in the form of a system on chip (SOC), a display unit 170 for displaying an image, and an audio output unit 180 for audio output .

To this end, the power supply unit (not shown) may include a converter (not shown) for converting AC power to DC power. Meanwhile, for example, when the display unit 170 is implemented as a liquid crystal panel having a plurality of backlight lamps, an inverter (not shown) that can perform PWM operation for variable luminance or dimming driving is further provided It is possible.

The external input device 200 is connected to the interface 140 via a wired or wireless network and transmits an input signal generated according to a user input to the interface 140. The external input device 200 may include a remote controller, a mouse, a keyboard, and the like. The remote controller can transmit an input signal to the interface unit 140 through Bluetooth, RF communication, infrared communication, UWB (Ultra Wideband), ZigBee, or the like. The remote controller can be implemented as a space remote controller. The spatial remote control device can detect an operation of the main body in a space and generate an input signal.

The video output apparatus 100 receives at least one of ATSC system (8-VSB system) digital broadcasting, DVB-T system (COFDM system) digital broadcasting, ISDB-T system (BST-OFDM system) And can be implemented as a fixed digital broadcasting receiver as much as possible. The video output apparatus 100 may be a digital terrestrial broadcasting system, a satellite DMB system digital broadcasting system, an ATSC-M / H system digital broadcasting system, a DVB-H system (COFDM system) Link Only) type digital broadcasting, or the like. Also, the video output device 100 may be implemented as a digital broadcast receiver for cable, satellite communication, and IPTV.

2 is a block diagram showing the external input device 200 of 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 .

Referring to FIG. 2, the wireless communication unit 210 transmits a signal to the video output device 100 or receives a signal from the video output device 100. For this, 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 output device 100 according to the RF communication standard to transmit and receive a signal and the IR module 212 is connected to the interface (140).

The user input unit 220 may include a key pad, a key button, a scroll key, and a jog key as input means. The user can input a command related to the video output apparatus 100 by operating the user input unit 220. [ Such an instruction may be input, for example, by a push operation of the hard key button of the user input unit 200 by the user. The user input unit 220 may further include a microphone for receiving voice information such as user voice, noise, and applause.

The sensing unit 230 may include a gyro sensor 231 and an acceleration sensor 232. The gyro sensor 231 can sense the spatial movement of the external input device 200 on the basis of the x-axis, the y-axis, and the z-axis. The acceleration sensor 232 can sense the moving speed of the external input device 200 or the like.

The output unit 240 outputs information corresponding to the operation of the user input unit 230 and information corresponding to the transmission signal of the video output device 100. [ Accordingly, the user can recognize the operation state of the user input unit 230 or the control state of the video output device 100 through the output unit 230. [ For example, the output unit 240 may include an LED module 241 that is turned on, a vibration module 242 that generates vibration, a vibration module that generates vibration, An audio output module 243 for outputting sound and a display module 244 for outputting an image.

The power supply unit 250 supplies power to various electronic devices of the external input device 200. When the external input device 200 is not moved for a predetermined period of time, the power supply unit 250 may stop power supply, thereby reducing power consumption. The power supply unit 250 may resume power supply when a predetermined key of the external input device 200 is operated.

The storage unit 260 may store various programs, applications, frequency band information, and the like related to the control or operation of the external input device 200. The control unit 270 performs an overall control operation of the external input device 200.

3 is a conceptual diagram showing the mutual operation of the video output device 100 and the external input device 200 according to the present invention. Here, a TV receiver is shown as an example of the video output device 100, and a remote controller is shown as an example of the external input device 200. [

Referring to FIG. 3, the external input device 200 can transmit or receive a signal to / from the video output device 100 according to the RF communication standard. A control menu may be displayed on the screen of the video output device 100 according to a control signal of the external input device 200. [ The external input device 200 includes a plurality of buttons, and can generate an external input signal according to a user's operation of the button.

In the present invention, the external input device 200 may be a remote control device. The remote control device receives a user voice through a microphone provided in the user input device 220, and outputs the input user voice to the video output device 100 And transmits it to the interface unit 140.

Meanwhile, in the video output device according to an embodiment of the present invention, when the user's voice is detected, the volume of the audiovisual information is determined based on the user's voice, and the audiovisual information is output to the determined volume of the audiovisual information .

Hereinafter, a control method of a video output device for determining a volume of audiovisual information based on a user's voice and outputting the audiovisual information to the determined volume will be described in detail with reference to the accompanying drawings.

4 is a flowchart illustrating a method of controlling a video output device according to an exemplary embodiment of the present invention.

In the video output device for outputting the audiovisual information, the video output device can detect the user's voice applied to the video output device in the inactivation mode in which the output of the audiovisual information is limited (S310).

The audiovisual information means information including both visual information and auditory information. For example, the audiovisual information means broadcasting, moving picture, and the like.

The deactivation mode means that a minimum amount of power is supplied to detect the user's voice. For example, it refers to a state in which the power of the video output device is connected but the audio-visual information is not output, and it means a commonly used 'state in which the television is turned off.'

The video output device can detect a power on signal or a user voice received from the external input device in the deactivation mode and can switch to the active mode in which audiovisual information is output based on the detected signal or voice have.

The activation mode means a state in which audiovisual information is output, and generally means a state in which the television is turned on.

The video output device may switch the inactive mode to the active mode in which the audiovisual information is output based on the sensed voice and determine the volume of the audiovisual information based on the sensed voice size in step S320.

The user voice for switching the deactivation mode to the active mode may be variously set by a developer or a user such as "TV on "," TV on ", and the like. Also, the user voice should be understood as a concept including sound information such as an applause sound.

The video output device may output the audiovisual information to the volume of the audiovisual information determined based on the size of the detected voice (S330).

In one embodiment, the volume determination of the audiovisual information may be determined at a predetermined delay time that occurs when the mode is switched from the inactive mode to the active mode, and the audiovisual information first output in the active mode is output to the determined volume of the audiovisual information .

Hereinafter, a method for determining the volume 510 of audiovisual information based on the size of the detected user voice will be described in more detail. 5A, 5B, 5C, and 5D are conceptual diagrams for explaining a method of determining a volume 510 of audiovisual information based on the size of a user's voice by the video output device according to an embodiment of the present invention.

The video output apparatus 100 may include an output unit 190 for outputting audiovisual information, as shown in FIGS. 5A and 5B. The output unit 190 may include the audio output unit 180 and the display unit 170 described above. The output unit 190 outputs the time information included in the audiovisual information through the display unit 170 and outputs the audiovisual information included in the audiovisual information through the audio output unit 180. [

5A, the sensing unit (not shown) of the video output device 100 detects a user voice applied to the video output device 100 in a deactivation mode in which the output of audiovisual information is limited, can do. Here, the sensing unit (not shown) may be a voice sensor included in the sensing unit (not shown).

The control unit 150 of the video output device 100 may switch the inactivation mode to the activation mode in which audiovisual information is output based on the voice detected by the user as shown in Figure 5 (b) .

The control unit 150 may determine the volume 510 (510) of the audiovisual information based on the size (e.g., 3) of the detected user voice. The control unit 150 may control the output unit 190 to output the audiovisual information to the determined volume (for example, 3) when the first audiovisual information is output in the active mode.

Hereinafter, the process of determining the volume 510 (510) of the audiovisual information by the control unit 150 will be described. If the volume 510 (510) of the audiovisual information is determined, Is outputted to the determined volume 510 (510) of the audiovisual information.

As shown in FIG. 5B, the controller 150 can determine the volume 510 (510) of the audiovisual information in proportion to the size of the detected voice.

For example, if the size of the user's voice is '2', the volume 510 of the audiovisual information 510 is determined to be '2', and if the size of the user's voice is '7' (510) may be determined to be '7'.

5C, the controller 150 compares the size of the detected voice with a preset reference size (e.g., 5), and determines whether the size of the detected voice (e.g., 7) The volume 510 (510) of the audiovisual information may be determined as a first level (for example, 8). If the volume 510 (510) of the audiovisual information is a second level (for example, 2) smaller than the first level when the size of the detected voice (for example, 3) is smaller than the reference size ).

The reference size refers to a value set by the developer or the user to compare the size of the detected user voice. This reference size may be set to one value and may be set to a plurality of values.

The first level or the second level refers to a volume 510 (510) of audiovisual information set based on a result of comparison between the size of the sensed voice and the reference size, and may be preset by a developer or a user.

In addition, the controller 150 may determine the volume 510 (510) of the audio-visual information as the first level or the second level according to the result of the comparison between the size of the detected voice and the reference size, The second level may be determined to be proportional to the size of the detected voice.

Although not shown, in one embodiment, if the size of the sensed voice is larger than the first reference size (e.g., the first reference size is 7, the second reference size 3) ) 510 as the first level. If the size of the detected voice is smaller than the second criterion, the volume 510 (510) of the audiovisual information can be determined as the second level lower than the first level. If the size of the detected voice is between the first reference size and the second reference size, the volume 510 (510) of the audiovisual information is determined based on the size of the user voice (510) It can be determined as the most recently set volume before being changed.

The volume most recently set before the volume 510 of the audiovisual information is changed based on the size of the user's voice may be set to a predetermined value before the user's voice is applied to the video output device 100, ) Is the volume at the time of the most recent transition from the active mode to the inactive mode.

As shown in FIG. 5D, the user can apply the user's voice to the external input device 200. FIG. The external input apparatus 200 transmits the user's voice signal to the interface unit 140 of the video output apparatus 100 in the inactive mode when the user's voice is detected through the microphone provided in the user input unit 220.

The control unit 150 of the video output device 100 receives the user's voice signal from the external input device 200 and generates a volume 510 of the audiovisual information 510 based on the size included in the user's voice signal. Can be determined.

The video output device 100 receives the user's voice received from the external input device 200 and the user's voice received from the external input device 200 by considering the reception sensitivity of the microphone provided in the external input device 200 and the distance between the user and the external input device 200. [ The volume 510 (510) of the audiovisual information can be determined to be larger or smaller than the size included in the signal of the audio visual information.

For example, if the size of the user's voice applied to the external input device 200 by the user is 5, the volume 510 (510) of the audiovisual information can be set to '8' as shown in FIG. 5D .

As described above, the video output device according to an embodiment of the present invention outputs the audiovisual information while determining the volume 510 of the audiovisual information to match the intention of the user. Therefore, it is possible to eliminate the inconvenience that the user has to adjust the volume or output brightness according to the situation after the audiovisual information is output.

Hereinafter, a method for determining the volume 510 of the audiovisual information or the output brightness based on the size of the user's voice or the surrounding situation will be described in more detail with reference to the accompanying drawings.

6A and 6B are conceptual diagrams for explaining a method of determining a volume 510 of audiovisual information based on the size of a user voice and the size of noise according to an embodiment of the present invention.

The sensing unit (not shown) may further detect the noise around the video output device as well as the voice of the user in the deactivation mode.

Here, the noise may include all sounds other than user voice such as "TV on "," TV on ", etc., which switch the inactive mode to the active mode.

The control unit 150 compares the size of the detected noise and the size of the detected user voice, and determines the volume 510 of the audiovisual information based on the comparison result.

As shown in FIG. 6A, when the size of the noise is smaller than the size of the user's voice, the controller 150 can determine the volume 510 of the audiovisual information based on the size of the detected user's voice. Also, if the size of the noise is larger than the size of the user's voice, the controller 150 can determine the volume 510 of the audiovisual information to be larger than the noise.

6B, the controller 150 may determine the volume 510 of the audiovisual information as a volume larger than the size of the noise when the size of the noise is larger than a preset size, The output unit 190 can be controlled so that the subtitle 610 for displaying contents is output.

The control unit 150 sets the volume 510 of the audiovisual information to the maximum volume when the size of the noise is larger than the maximum volume that can be output from the video output device, So that the output unit 190 can be controlled.

As described above, the video output device according to an embodiment of the present invention determines the volume 510 of the audiovisual information by considering not only the size of the user's voice but also the size of the noise. Therefore, it is not necessary to separately adjust the volume according to the surrounding situation, thereby enhancing the user's convenience.

7 illustrates a method of determining the volume 510 of audiovisual information based on the size of the user's voice and the distance between the video output device and the user detected by the distance sensor according to an embodiment of the present invention FIG.

The sensing unit (not shown) of the video output device 100 can sense the distance between the video output device 100 and the user by using the distance sensor 400 in addition to sensing the user's voice in the inactive mode .

7, when the user is located within a first reference distance based on the video output apparatus 100, the controller 150 controls the volume 510 of the audiovisual information to be the size of the detected voice Can be limited. The control unit 150 may determine the volume 510 of the audiovisual information based on the size of the detected voice when the user is located outside the first reference distance based on the video output apparatus 100. [

This is to prevent the audiovisual information from being output to a volume larger than the size desired by the user as the reception sensitivity of the user's voice increases when the user is close to the video output device 100. [

The first reference distance means a value that can be set by a developer or a user.

Although not shown, the controller 150 may determine that the volume 510 of the audiovisual information increases as the distance increases, in proportion to the distance between the video output device 100 and the user detected by the distance sensor 400 have. For example, if the distance between the video output apparatus 100 and the user is '1m', the volume 510 of the audio-visual information is determined to be '3'. If the distance is 3m, (510) can be determined as " 7 ".

As described above, the image output device according to an embodiment of the present invention determines the volume 510 of the audiovisual information based on the distance between the image output device and the user. Therefore, it is possible to prevent the eardrum from being damaged or frightened due to a malfunction due to a large output of the user when the user is close to the video output device.

8A and 8B are conceptual diagrams for explaining a method for the video output device according to an embodiment of the present invention to determine the volume 510 of the audiovisual information and the output brightness of the audiovisual information based on the size of the user's voice.

The control unit 150 may determine the volume 510 of the audiovisual information and the output brightness of the audiovisual information based on the size of the detected voice. The output brightness of the audiovisual information may be determined based on the size of the sensed voice.

As shown in Fig. 8A, the control unit 150 can determine not only the volume 510 of the audiovisual information but also the output brightness of the audiovisual information, based on the size of the user's voice.

For example, if the size of the user voice is '7', the control unit 150 sets the volume 510 of the audiovisual information to '7' and the brightness 520 of the audiovisual information to '7' have. If the size of the user's voice is '3', the volume 510 of the audiovisual information can be set to '3'.

5A to 5D and FIG. 7, the image output device 100 according to an exemplary embodiment of the present invention can determine not only the volume 510 of the audiovisual information, but also the output brightness of the audiovisual information.

The control unit 150 can determine the output brightness of the audiovisual information to be lighter and the output brightness of the audiovisual information to be darker as the size of the user voice is smaller.

 Further, the control unit 150 may darken the output brightness of the audiovisual information as the distance between the video output device 100 and the user is closer to the user, and brighten the output brightness of the audiovisual information as the distance increases.

Detailed explanations for determining the volume 510 of audiovisual information described in Figures 5A-5D and 7 may be applied analogously to determine the output brightness of the audiovisual information.

In addition, the sensing unit (not shown) may sense the brightness around the video output device based on the user's voice being detected in the inactivation mode.

The control unit 150 can determine the output brightness of the audiovisual information based on the brightness of the surroundings of the video output apparatus 100. [

For example, as shown in FIG. 8B, if the size of the user voice is '3', the controller 150 can determine the volume 510 of the audiovisual information to be '3'. If the ambient brightness is '7' The output brightness of the information can be determined to be '7'.

Also, although not shown, the control unit 150 may control the volume of audiovisual information based on the size of the user's voice when a user's voice is detected in a specific time zone (for example, late night or early morning time zone (11:00 pm to 6:00 am) The control unit 150 may limit the output brightness of the audiovisual information 510 or the output brightness of the audiovisual information based on the size of the user's voice, 510) (e.g., a small volume) or output brightness (e.g., a dark screen).

As described above, the image output device according to an embodiment of the present invention determines not only the volume 510 of audiovisual information but also the output brightness of audiovisual information. Therefore, the user can view the audiovisual information in a condition more consistent with the intention of the user.

In the present invention, the surroundings are described as noise, the distance between the video output device and the user, and the surrounding brightness, but the present invention is not limited thereto, and various modifications will be possible.

Hereinafter, when the video output apparatus according to an embodiment of the present invention determines and outputs the volume 510 of the audiovisual information or the output brightness based on the user's voice or the surrounding environment, the method returns to the existing setting or the latest setting With reference to the accompanying drawings.

FIGS. 9A and 9B are conceptual diagrams for explaining a method of outputting guidance information according to an embodiment of the present invention and changing the volume 510 of audiovisual information based on reception of a user request.

The controller 150 outputs guidance information 620 indicating that the volume 510 of the audiovisual information is determined by the size of the user's voice when the audiovisual information is output in a volume determined based on the size of the user's voice So that the output unit 190 can be controlled.

9A, when audiovisual information is output in a state where the volume 510 of the audiovisual information is determined to be '3' based on the size of the user's voice, the controller 150 sets the determined setting (volume), size And guidance information 620 including a method for returning to the previous volume.

The previous volume means an existing setting or the latest setting.

The existing setting means a predetermined value for outputting the audiovisual information to a predetermined value (for example, volume, output brightness) when the mode is switched from the inactive mode to the active mode.

The most recent setting means the volume or output brightness at the time when the video output apparatus 100 is most recently switched from the active mode to the inactive mode before the user's voice is applied to the video output apparatus 100. [

9B, when the guidance information 620 is output, the control unit 150 transmits a user request for changing the volume 510 of the audiovisual information to the most recently set volume (for example, Quot; return ") is received, the volume 510 of the audiovisual information may be changed to the most recently set volume (for example, 6).

9B, when the user request to change the output brightness of the audiovisual information to the most recently set output brightness is received while the guidance information 620 is output, The output brightness of the audiovisual information can be changed to the most recently set output brightness.

The user request may be a predetermined user voice, a specific signal received from the external input device 200 (for example, a 'menu' button), or the like.

The guide information 620 can be output only for a predetermined time (for example, 5 seconds). If the user information is not received in the state that the guidance information 620 is output, the control unit 150 continuously outputs audiovisual information to the volume 510 of the audiovisual information determined based on the size of the detected user voice can do.

The guidance information 620 can be output not only when the volume 510 of the audiovisual information is determined based on the size of the user's voice but also when the output brightness of the audiovisual information is determined.

In addition, the guidance information 620 can be output even when the volume 510 of the audiovisual information or the output brightness is determined based on the surrounding environment as well as the size of the user's voice.

The video output device according to an embodiment of the present invention may include substantially the same technical features as the control method of the video output device according to an embodiment of the present invention although the category is different. Therefore, the above-described features related to the video output device can be inherently applied to the invention of the video output device.

According to an embodiment of the present invention, the above-described method can be implemented as a code readable by a processor on a medium on which a program is recorded. Examples of the medium that can be read by the processor include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, etc., and may be implemented in the form of a carrier wave (e.g., transmission over the Internet) .

The video output device described above can be applied to a limited number of configurations and methods of the embodiments described above, but all or a part of the embodiments may be selectively combined so that various modifications may be made to the embodiments. .

Claims (15)

A video output device comprising:
An output unit for outputting audiovisual information;
A sensing unit sensing a user's voice applied to the video output device in a deactivation mode in which output of the audiovisual information is limited; And
And a control unit for switching the inactivation mode to an activation mode in which audiovisual information is output based on the sensed voice,
Wherein,
And determines the volume of the audiovisual information based on the size of the detected voice.
The method according to claim 1,
Wherein,
And determines the volume of the audiovisual information in proportion to the size of the detected voice.
3. The method of claim 2,
Wherein,
Determining a volume of the audiovisual information as a first level when the size of the detected voice is larger than the reference size, comparing the size of the detected voice with a predetermined reference size,
And determines the volume of the audiovisual information as a second level smaller than the first level when the size of the detected voice is smaller than the reference size.
The method according to claim 1,
The sensing unit senses the noise of the user around the video output device in addition to the voice of the user in the deactivation mode,
Wherein the control unit compares the magnitude of the sensed noise with the magnitude of the sensed user voice and determines the volume of the audiovisual information based on the comparison result.
5. The method of claim 4,
Wherein,
Determining a volume of the audiovisual information based on the size of the detected voice when the size of the noise is smaller than the size of the user's voice,
Wherein the volume of the audiovisual information is determined as a volume larger than the size of the noise if the size of the noise is larger than the size of the user voice.
6. The method of claim 5,
Wherein,
The volume of the audiovisual information is determined to be a volume larger than the volume of the noise and the output unit is controlled to output a caption for displaying contents included in the audiovisual information when the size of the detected noise is larger than a predetermined size And a video output device.
The method according to claim 1,
Wherein the sensing unit includes a distance sensor for sensing a distance between the video output device and the user,
Wherein,
Wherein when the user is located within a first reference distance based on the video output device, determining the volume of the audio-visual information based on the size of the detected audio is restricted,
Wherein the control unit determines the volume of the audiovisual information based on the size of the detected voice when the user is located outside the first reference distance based on the video output device.
The method according to claim 1,
Wherein,
Determines the volume of the audiovisual information and the output brightness of the audiovisual information based on the size of the detected voice,
Wherein the output brightness of the audiovisual information is determined based on a size of the sensed voice.
The method according to claim 1,
The sensing unit senses the brightness of the surroundings of the video output device based on the detection of the user's voice in the inactivation mode,
Wherein the control unit determines the output brightness of the audiovisual information based on the brightness around the video output device.
The method according to claim 1,
When the audiovisual information is output in a volume determined based on the size of the detected voice,
And controls the output unit to output guidance information indicating that the volume of the audio-visual information is determined by the size of the user's voice.
11. The method of claim 10,
Wherein,
When the user request for changing the volume of the audiovisual information to the volume most recently set before the volume of the audiovisual information is changed based on the size of the user's voice is received while the guidance information is output, And changes the volume of the information to the most recently set volume.
A video output device for outputting audiovisual information,
Detecting a user voice applied to the video output device in a deactivation mode in which output of the audiovisual information is limited;
Converting the inactivation mode into an activation mode in which audiovisual information is output based on the sensed voice and determining a volume of the audiovisual information based on the sensed voice size; And
And outputting the audiovisual information to the determined volume of the audiovisual information.
13. The method of claim 12,
Wherein the volume of the audiovisual information is determined in proportion to the size of the detected voice.
14. The method of claim 13,
Determining a volume of the audiovisual information as a first level when the size of the sensed voice is larger than the reference size as compared with a size of the sensed voice and a preset reference size;
Wherein the control unit determines the volume of the audiovisual information as a second level smaller than the first level when the size of the detected voice is smaller than the reference size.
13. The method of claim 12,
Further comprising the step of determining an output brightness of the audiovisual information based on the size of the detected voice,
Wherein the step of outputting the audiovisual information comprises:
And outputting the audiovisual information to the determined volume and output brightness.

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