KR20160026075A - Multimedia device and method for controlling the same - Google Patents

Multimedia device and method for controlling the same Download PDF

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Publication number
KR20160026075A
KR20160026075A KR1020140113908A KR20140113908A KR20160026075A KR 20160026075 A KR20160026075 A KR 20160026075A KR 1020140113908 A KR1020140113908 A KR 1020140113908A KR 20140113908 A KR20140113908 A KR 20140113908A KR 20160026075 A KR20160026075 A KR 20160026075A
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KR
South Korea
Prior art keywords
external device
edid
gui
criterion
hdmi
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KR1020140113908A
Other languages
Korean (ko)
Inventor
김정심
Original Assignee
엘지전자 주식회사
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Priority to KR1020140113908A priority Critical patent/KR20160026075A/en
Publication of KR20160026075A publication Critical patent/KR20160026075A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
    • H04N21/43632—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wired protocol, e.g. IEEE 1394
    • H04N21/43635—HDMI
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/44231—Monitoring of peripheral device or external card, e.g. to detect processing problems in a handheld device or the failure of an external recording device
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4621—Controlling the complexity of the content stream or additional data, e.g. lowering the resolution or bit-rate of the video stream for a mobile client with a small screen
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Human Computer Interaction (AREA)
  • Automation & Control Theory (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

A multimedia device and a control method thereof are disclosed.
According to an aspect of the present invention, a method of controlling a multimedia device includes: detecting an external device connected to an HDMI (High-Definition Multimedia Interface) port for supporting a resolution satisfying a first criterion; Transmitting a first EDID (Extended Display Identification Data) corresponding to a satisfactory resolution to the external device; receiving a video signal from the external device; and when an error exists in the received video signal, And displaying a GUI for guiding a change of the EDID transmitted to the external device.

Description

TECHNICAL FIELD [0001] The present invention relates to a multimedia device and a control method thereof,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multimedia device that can be connected to an external device via HDMI and a control method thereof.

Beyond Full HD resolution, with the increasing content of Ultra HD resolution, sink devices with HDMI port supporting HDMI 2.0 version are becoming increasingly popular. However, a source device (for example, a DVD player, a set-top box, an HTS, etc.) used in connection with such a sink device does not yet support the HDMI 2.0 version. Therefore, Is often connected to the HDMI port of the sink device, the source device does not correctly recognize the Extended Display Identification Data (EDID) transmitted from the sink device, thereby causing an error. The EDID is data indicating the display capability of the display device. The EDID includes information on the place and the manufacturer of the product, the year and month of manufacture of the product, resolution and color coordinates of the product, and the source device reads the image, . Users often do not fully understand the version of HDMI, so not only can not find a solution to the error, but they do not even understand the reason for the error. Therefore, when a source device supporting a lower version of HDMI is connected to an HDMI port of a sink device supporting a higher version of HDMI, a solution that can solve this problem is needed.

The present invention is directed to solving the above-mentioned problems and other problems. Another object of the present invention is to provide a solution to solve a problem that may occur when a source device supporting a lower version of HDMI is connected to an HDMI port of a sink device supporting a higher version of HDMI.

Another object of the present invention is to provide a solution for allowing a source device to transmit an EDID matching the type of the specified source device to the source device irrespective of the type of the HDMI port to which the source device is connected .

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the invention, unless further departing from the spirit and scope of the invention as defined by the appended claims. It will be possible.

According to an aspect of the present invention, there is provided a method of controlling a multimedia device, including: detecting an external device connected to an HDMI (High-Definition Multimedia Interface) port for supporting a resolution satisfying a first criterion; Transmitting a first EDID (Extended Display Identification Data) corresponding to a resolution satisfying the first criterion to the external device; receiving a video signal from the external device; And displaying a GUI for guiding a change of the EDID transmitted to the external device when an error exists in the GUI.

According to an aspect of the present invention, a multimedia device includes an external device interface unit connected to an external device via an HDMI (High-Definition Multimedia Interface) port for supporting a resolution satisfying a first criterion, A memory for storing a first EDID (Extended Display Identification Data) corresponding to a satisfactory resolution and a second EDID corresponding to a resolution satisfying a second reference lower than the first reference, a display unit, and a control unit, Wherein the control unit controls the external device interface unit to transmit the first EDID to the external device and controls the external device interface unit to receive a video signal from the external device, A GUI for guiding the change of the EDID to be transmitted to the external device, Thereby controlling the base display unit.

According to an aspect of the present invention, a multimedia device includes an external device interface unit connected to an external device through a high-definition multimedia interface (HDMI) port, a first EDID (Extended And a second EDID corresponding to a resolution that satisfies a second criterion lower than the first criterion, a display unit, and a control unit, wherein the control unit sets the environment setting of the external input mode The control unit controls the display unit to display an execution screen of the menu and controls the display unit to output a GUI for selecting a type of external device connected to the HDMI port on the execution screen , The GUI is for a first type of external device associated with a resolution satisfying the first criterion And a second menu corresponding to a second type of external device associated with the resolution satisfying the second criterion, wherein, based on the type of the external device selected through the GUI, And controls the external device interface unit to transmit either the EDID or the second EDID to the external device.

According to at least one of the embodiments of the present invention, a solution for solving a problem that may occur when a source device supporting a lower version of HDMI is connected to an HDMI port of a sink device supporting a higher version of HDMI is provided .

According to at least one of the embodiments of the present invention, when a user designates a type of a source device, an EDID matching the type of the designated source device, regardless of the type of the HDMI port to which the source device is connected, To a mobile terminal.

Further scope of applicability of the present invention will become apparent from the following detailed description. It should be understood, however, that the detailed description and specific examples, such as the preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art.

1 is a block diagram illustrating a multimedia device as an example of a sink device according to an embodiment of the present invention.
FIG. 2 is a block diagram illustrating a detailed configuration of the controller of FIG. 1 according to an embodiment of the present invention.
3 is a diagram illustrating examples of a remote controller for controlling a multimedia device according to an exemplary embodiment of the present invention.
4 is a diagram illustrating only the configuration modules related to HDMI among the external device interfaces included in the multimedia device according to the embodiment of the present invention.
5 is a flowchart illustrating an example of a method of controlling a multimedia device according to an embodiment of the present invention.
6 is a diagram for explaining a problem that may occur when an external device supporting a lower version of HDMI is connected to an HDMI port of a multimedia device supporting a higher version of HDMI.
7 is a diagram illustrating an example of a GUI displayed on a display unit when an error exists in a video signal received from an external device in a multimedia device according to an embodiment of the present invention.
8 is a diagram for explaining an example of connecting an external device supporting a higher version of HDMI to an HDMI port of a multimedia device supporting a lower version of HDMI.
9 is a flowchart illustrating another example of a method of controlling a multimedia device according to an embodiment of the present invention.
10 is a diagram for explaining an EDID transmitted to an external device when a user specifies a type of an external device in the multimedia device according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals are used to designate identical or similar elements, and redundant description thereof will be omitted. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role. In the following description of the embodiments of the present invention, a detailed description of related arts will be omitted when it is determined that the gist of the embodiments disclosed herein may be blurred. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. , ≪ / RTI > equivalents, and alternatives.

Terms including ordinals, such as first, second, etc., may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The singular expressions include plural expressions unless the context clearly dictates otherwise.

In the present application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

1 is a block diagram illustrating a multimedia device as an example of a sink device according to an embodiment of the present invention.

The multimedia device 100 according to an exemplary embodiment of the present invention is an intelligent network TV that adds a computer support function to a broadcast reception function, for example, and is a device added to an internet function while being faithful to a broadcast reception function. For example, the multimedia device 100 may correspond to a network TV, a smart TV, a Hybrid Brodacast Broadband Television (HBBTV), an Internet TV, a Web TV, an IPTV (Internet Protocol Television) In addition, the multimedia device 100 may include an HDMI port that supports the HDMI 2.0 version.

The multimedia device 100 includes a receiving unit 110, an external device interface unit 120, a memory 130, a display unit 140, an audio output unit 150, a power supply unit 160, a control unit 170, An interface unit 180, and the like.

The receiving unit 110 may include at least one tuner 111, a demodulating unit 112, and a network interface unit 113. However, the receiving unit 110 may include the tuner 111 and the demodulating unit 112, but may not include the network interface unit 113, or vice versa. Although not shown, the receiving unit 110 includes a multiplexer and multiplexes the signal demodulated by the demodulator 112 and the signal received through the network interface unit 113 via the tuner 111, You may. In addition, although not shown, the receiving unit 110 may include a demultiplexer to demultiplex the multiplexed signal or demultiplex the demodulated signal or the signal transmitted through the network interface unit 113 .

The tuner 111 tunes a channel selected by a user or all pre-stored channels among RF (Radio Frequency) broadcast signals received through an antenna and receives RF broadcast signals. Also, the tuner 111 converts the received RF broadcast signal into an intermediate frequency (IF) signal or a baseband signal.

For example, if the received RF broadcast signal is a digital broadcast signal, the signal is converted into a digital IF signal (DIF). If the received RF broadcast signal is an analog broadcast signal, the signal is converted into an analog baseband image or a voice signal (CVBS / SIF). That is, the tuner 111 can process both a digital broadcast signal and an analog broadcast signal. The analog baseband video or audio signal (CVBS / SIF) output from the tuner 111 can be directly input to the controller 170.

Also, the tuner 111 can receive RF broadcast signals of a single carrier or a multiple carrier. Meanwhile, the tuner 111 sequentially tunes and receives RF broadcast signals of all the broadcast channels stored through the channel memory function among the RF broadcast signals received through the antenna, converts the RF broadcast signals into intermediate frequency signals or baseband signals (DIF: Digital Intermediate Frequency or baseband signal).

The demodulator 112 may receive and demodulate the digital IF signal DIF converted by the tuner 111 and perform channel decoding. For this, the demodulator 112 may include a trellis decoder, a de-interleaver, a Reed-Solomon decoder, or a convolution decoder, a deinterleaver, - Solomon decoder and the like.

The demodulation unit 112 may demodulate and decode the channel, and then output the stream signal TS. At this time, the stream signal may be a signal in which a video signal, a voice signal, or a data signal is multiplexed. For example, the stream signal may be an MPEG-2 TS (Transport Stream) multiplexed with an MPEG-2 standard video signal, a Dolby AC-3 standard audio signal, or the like.

The stream signal output from the demodulation unit 112 may be input to the control unit 170. The control unit 170 controls demultiplexing, video / audio signal processing, and the like, and controls the output of audio through the display unit 140 and the audio output through the audio output unit 150.

The external device interface unit 120 provides an interface environment between the multimedia device 100 and various external devices. To this end, the external device interface unit 120 may include an A / V input / output unit (not shown) or a wireless communication unit (not shown).

The external device interface unit 120 may be a digital versatile disk (DVD), a Blu-ray, a game device, a camera, a camcorder, a computer (notebook), a tablet PC, a smart phone, device, an external device such as a cloud, or the like. The external device interface unit 120 transmits a signal including data such as image, image, and voice input through the connected external device to the controller 170 of the multimedia device 100. The control unit 170 may control the processed image, video, audio, and the like to be output to an external device to which a data signal is connected. To this end, the external device interface unit 120 may further include an A / V input / output unit (not shown) or a wireless communication unit (not shown).

The A / V input / output unit includes a USB terminal, a Composite Video Banking Sync (CVBS) terminal, a component terminal, an S-video terminal (analog) terminal, A DVI (Digital Visual Interface) terminal, an HDMI (High Definition Multimedia Interface) terminal, an RGB terminal, a D-SUB terminal, and the like.

The wireless communication unit can perform wireless communication with another digital device. The multimedia device 100 may be, for example, a wireless LAN (WLAN), a wireless fidelity (Wi-Fi), a wireless fidelity , infrared data association (UWB), Ultra Wideband (UWB), ZigBee, and DLNA (Digital Living Network Alliance).

Also, the external device interface unit 120 may be connected to the set-top box (STB) through at least one of the various terminals described above to perform input / output operations with the set-top box (STB).

Meanwhile, the external device interface unit 120 may receive an application or an application list in an adjacent external device, and may transmit the received application or application list to the controller 170 or the memory 130.

The network interface unit 113 provides an interface for connecting the multimedia device 100 to a wired / wireless network including the Internet network. The network interface unit 113 may include an Ethernet terminal or the like for connection with a wired network and may be a WLAN (Wireless LAN) (Wi- Fi, Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), and HSDPA (High Speed Downlink Packet Access) communication standards.

The network interface unit 113 can transmit or receive data to another user or another digital device via the connected network or another network linked to the connected network. Particularly, it is possible to transmit some content data stored in the multimedia device 100 to another user registered in advance in the multimedia device 100 or a selected one of the other digital devices or a selected digital device.

On the other hand, the network interface unit 113 can access a predetermined web page through the connected network or another network linked to the connected 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 may be received. That is, it can receive content and related information of a movie, an advertisement, a game, a VOD, a broadcast signal, and the like provided from a content provider or a network provider through a network. In addition, it can receive update information and an update file of firmware provided by the network operator. It may also transmit data to the Internet or a content provider or network operator.

In addition, the network interface unit 113 can select and receive a desired one of the open applications through the network.

The memory 130 may store a program for each signal processing and control in the control unit 170, and may also store signal-processed video, audio, or data signals.

The memory 130 may also function to temporarily store video, audio, or data signals input from the external device interface unit 120 or the network interface unit 113. The memory 130 may store information on a predetermined broadcast channel through a channel memory function.

The memory 130 may store a list of applications or applications input from the external device interface unit 120 or the network interface unit 113. [

The memory 130 may also store various platforms to be described later.

The memory 130 may be, for example, a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, an SD or XD memory Etc.), RAM (RAM), ROM (EEPROM, etc.), and the like. The multimedia device 100 may reproduce and provide a content file (a moving image file, a still image file, a music file, a document file, an application file, etc.) stored in the memory 130 to a user. According to the embodiment, the memory 130 may be included and implemented in the controller 170. [

The user interface unit 180 transmits a signal input by the user to the control unit 170 or a signal from the control unit 170 to the user.

For example, the user interface unit 180 receives control signals such as power on / off, channel selection, and screen setting from the remote controller 200 in accordance with various communication methods such as an RF communication method and an infrared (IR) And transmit the control signal of the controller 170 to the remote controller 200. [

Also, the user interface unit 180 can transmit a control signal input from a local key (not shown) such as a power key, a channel key, a volume key, and a set value to the controller 170.

The user interface unit 160 transmits a control signal input from a sensing unit (not shown) that senses a gesture of a user to the control unit 170 or a signal from the control unit 150 to a sensing unit (Not shown). Here, the sensing unit (not shown) may include a touch sensor, an audio sensor, a position sensor, an operation sensor, and the like.

The control unit 170 generates a signal for video or audio output by processing a demultiplexed or demultiplexed stream input through the tuner 111, the demodulating unit 112, or the external device interface unit 120 And can output.

The video signal processed by the control unit 170 may be input to the display unit 140 and displayed as an image corresponding to the video signal. The video signal processed by the controller 170 may be input to the external output device through the external device interface unit 120.

The control unit 170 may include a demultiplexing unit, an image processing unit, and the like.

The control unit 170 may control the overall operation of the multimedia device 100. [ For example, the control unit 170 may control the tuner 111 to control tuning of a RF broadcast corresponding to a channel selected by the user or a previously stored channel.

The control unit 170 may control the multimedia device 100 according to a user command or an internal program input through the user interface unit 180. In particular, the user can connect to the network and allow a user to download a desired application or application list into the multimedia device 100.

For example, the controller 170 controls the tuner 111 so that a signal of a selected channel is input according to a predetermined channel selection command received through the user interface unit 180. And processes video, audio or data signals of the selected channel. The control unit 170 allows the display unit 140 or the audio output unit 150 to output the video or audio signal processed by the user through the channel information selected by the user.

For example, the control unit 170 may control the operation of the external device via the external device interface unit 180, for example, a camera or a camcorder, through the external device interface unit 180 according to the external device video playback command received through the user interface unit 180. [ , So that a video signal or a voice signal can be output through the display unit 140 or the audio output unit 150.

Meanwhile, the control unit 170 may control the display unit 140 to display an image. For example, a broadcast image input through the tuner 111, an external input image input through the external device interface unit 120, an image input through the network interface unit 113, So that the stored image can be displayed on the display unit 140. At this time, the image displayed on the display unit 140 may be a still image or a moving image, and may be a 2D image or a 3D image.

Also, the control unit 170 can control to reproduce the content. The content at this time may be the content stored in the multimedia device 100, or the received broadcast content, or external input content input from the outside. The content may be at least one of a broadcast image, an external input image, an audio file, a still image, a connected web screen, and a document file.

On the other hand, when entering the application viewing item, the control unit 170 can control to display a list of applications or applications that can be downloaded from the multimedia device 100 or from an external network.

The control unit 170 can control, in addition to various user interfaces, to install and operate an application downloaded from the external network. In addition, by the user's selection, it is possible to control the display unit 140 to display an image related to the executed application.

The display unit 140 converts an image signal, a data signal, an OSD signal processed by the control unit 170, a video signal and a data signal received from the external device interface unit 120 into R, G, and B signals, respectively Thereby generating a driving signal.

The display unit 140 may be a PDP, an LCD, an OLED, a flexible display, a 3D display, or the like.

Meanwhile, the display unit 140 may be configured as a touch screen and used as an input device in addition to the output device.

The audio output unit 150 receives a signal processed by the control unit 170, for example, a stereo signal, a 3.1 channel signal, or a 5.1 channel signal, and outputs it as a voice. The audio output unit 150 may be implemented by various types of speakers.

In order to detect a user's gesture, a sensing unit (not shown) having at least one of a touch sensor, an audio sensor, a position sensor, and an operation sensor may be further included in the multimedia device 100 . The signal sensed by the sensing unit (not shown) may be transmitted to the controller 170 through the user interface unit 180.

On the other hand, a photographing unit (not shown) for photographing a user may be further provided. The image information photographed in the photographing unit (not shown) may be input to the controller 150.

The control unit 170 may sense the gesture of the user by combining the images photographed by the photographing unit (not shown) or the signals sensed by the sensing unit (not shown).

The power supply unit 160 supplies corresponding power to the multimedia device 100.

Particularly, it is possible to supply power to a control unit 170 that can be implemented in the form of a system-on-chip (SoC), a display unit 140 for displaying an image, and an audio output unit 150 for audio output .

To this end, the power supply unit 160 may include a converter (not shown) for converting AC power to DC power. Meanwhile, for example, when the display unit 140 is implemented as a liquid crystal panel having a plurality of backlight lamps, an inverter (not shown) capable of PWM (Pulse Width Modulation) operation for variable luminance or dimming driving and an inverter (not shown).

The remote controller 200 transmits the user input to the user interface unit 180. For this purpose, the remote controller 200 can use Bluetooth, RF (radio frequency) communication, infrared (IR) communication, UWB (Ultra Wideband), ZigBee, or the like.

The remote controller 200 can receive the video, audio, or data signal output from the user interface unit 180 and display it on the remote controller 200 or output sound or vibration.

The multimedia device 100 may be a digital broadcasting receiver capable of processing digital broadcasting signals of a fixed or mobile ATSC scheme or DVB scheme.

In addition, the display device according to the present invention may further include a configuration that omits some of the configuration shown in FIG. On the other hand, the display device may not receive the tuner and the demodulator, and may receive and reproduce the content through the network interface unit or the external device interface unit, unlike the above.

FIG. 2 is a block diagram illustrating a detailed configuration of the controller of FIG. 1 according to an embodiment of the present invention.

The control unit 170 of the multimedia device 100 according to an embodiment of the present invention includes a demultiplexing unit 171, an image processing unit 172, an OSD generating unit 173, a mixer 174, A frame rate converter (FRC) 175, and a formatter 176. In addition, although not shown, the control unit 170 may further include a voice processing unit and a data processing unit.

The demultiplexer 171 demultiplexes the input stream. For example, the demultiplexer 171 can demultiplex the received MPEG-2 TS video, audio and data signals. Here, the stream signal input to the demultiplexer 171 may be a stream signal output from a tuner, a demodulator, or an external device interface.

The image processing unit 172 performs image processing of the demultiplexed video signal. To this end, the image processing unit 172 may include a video decoder 172a and a scaler 172b.

The video decoder 172a decodes the demultiplexed video signal, and the scaler 172b scales the decoded video signal so that the resolution of the decoded video signal can be output from the display unit.

The video decoder 172a may support various standards. For example, the video decoder 172a performs the function of an MPEG-2 decoder when the video signal is encoded in the MPEG-2 standard, and the video decoder 172a encodes the video signal in the DMB (Digital Multimedia Broadcasting) It can perform the function of the H.264 decoder.

On the other hand, the video signal decoded by the video processor 172 is input to the mixer 174. [

The OSD generating unit 173 generates OSD data according to a user input or by itself. For example, the OSD generating unit 173 generates data for displaying various data in graphic or text form on the screen of the display unit 140 based on the control signal of the user interface unit 180 . The generated OSD data includes various data such as a user interface screen (e.g., a GUI) of the multimedia device 100, various menu screens, a widget, an icon, and viewing rate information do. The OSD generation unit 173 may generate data for displaying broadcast information based on the caption of the broadcast image or the EPG.

The mixer 174 mixes the OSD data generated by the OSD generator 173 and the image signal processed by the image processor to provide the mixed signal to the formatter 176. Since the decoded video signal and the OSD data are mixed, the OSD is overlaid on the broadcast image or the external input image.

A frame rate conversion unit (FRC) 175 converts the frame rate of an input image. For example, the frame rate conversion unit 175 may convert the frame rate of the input 60 Hz image to have a frame rate of, for example, 120 Hz or 240 Hz according to the output frequency of the display unit. As described above, there are various methods for converting the frame rate. For example, when converting the frame rate from 60 Hz to 120 Hz, the frame rate conversion unit 175 may insert the same first frame between the first frame and the second frame, Three frames can be inserted. As another example, when converting the frame rate from 60 Hz to 240 Hz, the frame rate conversion unit 175 may insert three or more identical frames or predicted frames between existing frames. On the other hand, when the frame conversion is not performed, the frame rate conversion unit 175 may be bypassed.

The formatter 176 changes the output of the input frame rate conversion unit 175 to match the output format of the display unit. For example, the formatter 176 may output R, G, B data signals, which may be output as low voltage differential signals (LVDS) or mini-LVDS . When the output from the input frame rate converter 175 is a 3D video signal, the formatter 176 constructs the 3D format according to the output format of the display unit and outputs the 3D format to the formatter 176 through the display unit 140 It can also support.

Meanwhile, the voice processing unit (not shown) in the control unit 170 can perform the voice processing of the demultiplexed voice signal. Such a voice processing unit (not shown) may support processing various audio formats. For example, even when a voice signal is coded in a format such as MPEG-2, MPEG-4, AAC, HE-AAC, AC-3, or BSAC, a corresponding decoder can be provided.

In addition, the voice processing unit (not shown) in the control unit 170 can process a base, a treble, a volume control, and the like.

A data processing unit (not shown) in the control unit 170 can perform data processing of the demultiplexed data signal. For example, the data processing unit can decode the demultiplexed data signal even when it is coded. Here, the encoded data signal may be EPG information including broadcast information such as a start time and an end time of a broadcast program broadcasted on each channel.

Meanwhile, the above-described multimedia device 100 is an example according to the present invention, and each component can be integrated, added, or omitted according to specifications of a display device actually implemented. That is, if necessary, two or more components may be combined into one component, or one component may be divided into two or more components. In addition, the functions performed in each block are intended to illustrate the embodiments of the present invention, and the specific operations and devices thereof do not limit the scope of rights of the present invention.

3 is a diagram illustrating examples of a remote controller for controlling a multimedia device according to an exemplary embodiment of the present invention.

In order to control the multimedia device 100, a front panel (not shown) provided on the multimedia device 100 may be used or a remote controller 200 may be used.

The remote controller 200 is a user interface device (UID) capable of wireless and wired communication and mainly includes a remote controller 210, a keyboard 230, a pointing device 220, , A touch pad (touch pad), and the like. In addition, a mobile device such as a smart phone, a tablet PC, and the like capable of controlling the multimedia device 100 through mode switching and the like may be included in the remote controller 200, though it is not a control object of the multimedia device 100.

The remote controller 200 may be any one of Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (UDA), Ultra Wideband (UWB), ZigBee, Digital Living Network Alliance (DLNA) And can communicate with the multimedia device 100 by employing at least one communication protocol as needed.

The remote controller 210 is a conventional input means having various key buttons necessary for controlling the multimedia device 100. [

The pointing device 230 may include a gyro sensor or the like to implement a pointer corresponding to a screen of the multimedia device 100 based on the user's motion, The control command is transmitted. Such a pointing device 203 may be named with various names such as a magic remote controller, a magic controller, and the like.

The keyboard 230 provides various services such as a web browser, an application, and a social network service (SNS) as an intelligent integrated digital device beyond the conventional multimedia only providing the conventional broadcasting, It is not easy, and it is implemented to complement input and realize input convenience such as text by implementing similar to PC keyboard.

The remote controller 200, such as the remote controller 210, the pointing device 220, and the keyboard 230, is provided with a touch pad as required, making it more convenient to input text, move the pointer, And can be used for various control purposes.

4 is a diagram illustrating only the configuration modules related to HDMI among the external device interfaces included in the multimedia device according to the embodiment of the present invention.

4, the external device interface unit 120 of the multimedia device 100 includes a plurality of HDMI ports 121, an HDMI switching unit 122, an EEPROM 123 corresponding to each HDMI port 121 ). 4, four HDMI ports 121 and a first EEPROM 123a, a second EEPROM 123b, a third EEPROM 123c, and a fourth EEPROM 123d corresponding to the respective HDMI ports 121, As shown in FIG. At least one HDMI port 121a of the four HDMI ports 121 may be a dedicated UHD port. UHD-specific port refers to an HDMI port that supports UHD-class resolution. UHD-class resolution can mean resolution of 4K (4096 * 2096, 3840 * 2160, 3840 * 2160, etc.) resolution. In addition, the remaining three HDMI ports 121b of the four HDMI ports 121 may be ports supporting HD or Full HD resolution.

The memory 130 may store a first EDID corresponding to the resolution satisfying the first criterion and a second EDID corresponding to the resolution satisfying the second criterion lower than the first criterion. The resolution that satisfies the first criterion may mean the UHD resolution described above, and the resolution that satisfies the second criterion may mean the HD resolution or Full HD resolution described above. The EDID is data indicating the display capability of the display device, and may include information on the place and the producer of the product, the year and month of manufacture of the product, resolution and color coordinates of the product, and the like. The first EDID corresponding to the UHD resolution and the EDID corresponding to the HD / Full HD resolution may have different data structures.

The EEPROM 123 stores the EDID corresponding to each HDMI port 121. The control unit 170 downloads the first EDID stored in the memory 130 when the external device is connected to the HDMI port 121a which is a UHD exclusive port and transmits the downloaded first EDID to the corresponding HDMI port 121 And stores it in the EEPROM 123. Then, the control unit 170 transmits the first EDID to the external device through the HDMI port 121a. If an external device is connected to the HDMI port 121b other than the UHD port, the controller 170 downloads the second EDID stored in the memory 130 and transmits the downloaded second EDID to the corresponding HDMI port 121, In the EEPROM 123 corresponding to the < / RTI > Then, the control unit 170 transmits the second EDID to the external device through the HDMI port 121b. The HDMI switching unit 122 may serve to select the HDMI port 121 that is the object of the control signal of the control unit 170. [

The HDMI port 121, the HDMI switching unit 122, and the controller 170 can communicate through DDC (Display Data Channel). The DDC is a communication channel between the display device and the host, and is a protocol defined by the Video Electronics Standards Association (VESA).

5 is a flowchart illustrating an example of a method of controlling a multimedia device according to an embodiment of the present invention.

The controller 170 of the multimedia device 100 detects an external device connected to the HDMI port 121a to support the resolution that satisfies the first criterion (S301). The resolution satisfying the first criterion may mean UHD resolution.

The control unit 170 controls the external device interface unit 120 to transmit the first EDID corresponding to the resolution satisfying the first criterion to the external device (S302). The controller 170 downloads the first EDID stored in the memory 130 corresponding to the HDMI port 121a and outputs the first EDID to the first EEPROM 121a when the external device is connected to the HDMI port 121a. 123a, and can transmit the first EDID to the external device through the HDMI port 121a.

The control unit 170 controls the external device interface unit 120 to receive the video signal from the external device (S303). The external device interface unit 120 can receive a video signal from the external device through the HDMI port 121a. In the present embodiment, the external device may be a device supporting a version lower than HDMI 2.0.

6 is a diagram for explaining a problem that may occur when an external device supporting a lower version of HDMI is connected to an HDMI port of a multimedia device supporting a higher version of HDMI.

5 and 6, the external device 400 may receive the first EDID from the multimedia device 100. However, since the external device 400 is a device supporting a lower version of HDMI (for example, HDMI 1.4) than the multimedia device 100, it can not correctly recognize the first EDID corresponding to the higher version. Accordingly, when the multimedia device 100 receives a video signal from the external device 400, the received video signal may not be output normally, an error may occur, or the video signal may not be received correctly, And an external device 400 may reboot due to an error. In this case, the user can normally use the external device 400 only after disconnecting the external device 400 from the HDMI port 121a and then connecting to the other HDMI port 121b. Therefore, an embodiment of the present invention aims to provide a solution for solving such a user inconvenience.

5, when there is an error in the video signal received from the external device, the control unit 170 outputs a GUI to the display unit 140 to guide the change of the EDID transmitted to the external device S304).

7 is a diagram illustrating an example of a GUI displayed on a display unit when an error exists in a video signal received from an external device in a multimedia device according to an exemplary embodiment of the present invention.

7, if there is an error in the video signal received from the external device 400 through the HDMI port 121a, the control unit 170 instructs the EDID change to be transmitted to the external device 400 The display unit 140 may be controlled to display the GUI 310. [ That is, the control unit 170 controls the EDID transmitted to the external device 400 connected to the HDMI port 121a from the first EDID to the resolution of the second reference lower than the first reference (HD resolution or Full The display unit 140 may be controlled to display the GUI 310 including the guidance message for instructing the second EDID to change to the second EDID corresponding to the HD resolution.

The user can select the change of the EDID transmitted to the external device 400 by selecting the "YES" menu 311 included in the GUI 310. [ The control unit 170 downloads the second EDID from the memory 130 when a user command to select the change of the EDID transmitted to the external device 400 is detected through the GUI 310, The EDID can be transmitted to the external device 400. [

When a user command to select a change of the EDID transmitted to the external device 400 through the GUI 310 is detected, the process of transmitting the second EDID to the external device 400 includes two examples It can be possible.

First, when a user command for selecting a change of the EDID transmitted to the external device 400 is detected through the GUI 310, the controller 170 reboots the multimedia device 100 according to the user command . The reason for rebooting the multimedia device 100 is to re-set the HDMI port 121a according to the specifications of the external device 400. [ The controller 170 may reboot the multimedia device 100 by turning off the power of the multimedia device 100 and then turning on the power without turning on the user. The control unit 170 detects the external device 400 connected to the HDMI port 121a and downloads the second EDID from the memory 130 and transmits the downloaded second EDID to the HDMI port 121a To the external device 400 via the network. The control unit 170 outputs a guidance message to the display unit 140 indicating that the multimedia device 100 is restarting in order to reestablish the HDMI port according to the specification of the external device 400 You may.

The controller 170 controls the connection of the external device 400 from the HDMI port 121a to the external device 400 when the user command for selecting the change of the EDID transmitted to the external device 400 is detected through the GUI 310. [ And then controls the display unit 140 to display a guide message to reconnect to the HDMI port 121a. The reason why the external device 400 is disconnected from the HDMI port 121a and then reconnected is to reestablish the HDMI port 121a according to the specifications of the external device 400. [ The control unit 170 detects connection disconnection and reconnection of the external device 400 at the HDMI port 121a and downloads the second EDID from the memory 130 and transmits the downloaded second EDID to the HDMI To the external device 400 through the port 121a.

According to the present embodiment, the user can set the HDMI port 121a again without the inconvenience of directly locating the HDMI port 121b matching the specification of the external device 400 and connecting the external device 400, The EDID transmitted to the device 400 is changed, thereby enhancing user convenience.

8 is a diagram for explaining an example of connecting an external device supporting a higher version of HDMI to an HDMI port of a multimedia device supporting a lower version of HDMI.

The controller 170 of the multimedia device 100 detects the external device 400 connected to the HDMI port 121b for supporting the HD / FHD resolution. In the present embodiment, it is assumed that the external device 400 is a device that provides HUD class content and is a device that supports the HDMI 2.0 version.

The control unit 170 downloads the second EDID corresponding to the HD / FHD resolution from the memory 130 and transmits the downloaded second EDID to the external device 400 through the HDMI port 121. [

There is no particular problem when an external device supporting a higher version of HDMI is connected to the HDMI port of the multimedia device 100 supporting the lower version of HDMI. This is because the external device 400 can transmit the content having a resolution suitable for the HDMI port 121 by referring to the second EDID transmitted from the multimedia device 100. [

However, according to an embodiment of the present invention, when an external device supporting a higher version of HDMI is connected to the HDMI port of the multimedia device 100 supporting a lower version of HDMI, the controller 170 controls the corresponding HDMI port 121b to display the GUI 320 including the information message that the content can be viewed at the UHD level resolution.

The user can select the change of the EDID transmitted to the external device 400 by selecting the "YES" menu 321 included in the GUI 320. [ The control unit 170 downloads the first EDID from the memory 130 when a user command for selecting the change of the EDID transmitted to the external device 400 is detected through the GUI 320, The EDID can be transmitted to the external device 400. [

7, when a user command to select a change of the EDID transmitted to the external device 400 is detected through the GUI 320, the first EDID is transmitted to the external device 400 Two examples can be made as described below.

First, when a user command for selecting a change of the EDID transmitted to the external device 400 is detected through the GUI 320, the controller 170 reboots the multimedia device 100 according to the user command . The controller 170 may reboot the multimedia device 100 by turning off the power of the multimedia device 100 and then turning on the power without turning on the user. The control unit 170 detects the external device 400 connected to the HDMI port 121b and downloads the first EDID from the memory 130 and outputs the downloaded first EDID to the HDMI port 121b To the external device 400 via the network.

The controller 170 controls the connection of the external device 400 from the HDMI port 121b to the external device 400 when the user command for selecting the change of the EDID transmitted to the external device 400 is detected through the GUI 320. [ And then controls the display unit 140 to display a guidance message to reconnect to the HDMI port 121b. The control unit 170 detects disconnection and reconnection of the external device 400 from the HDMI port 121b and downloads the first EDID from the memory 130 and transmits the downloaded first EDID to the HDMI To the external device 400 through the port 121b.

According to the present embodiment, there is an effect of providing a guide that enables the user to use the content of the external device 400 with a better resolution.

9 is a flowchart illustrating another example of a method of controlling a multimedia device according to an embodiment of the present invention.

The controller 170 of the multimedia device 100 detects an external device connected to the HDMI port 121 (S331). The external device can be connected to the multimedia device 100 through the HDMI port 121a or the HDMI port 121b.

The control unit 170 controls the display unit 140 to display an execution screen of the menu when a menu for environment setting of the external input mode is executed by the user (S332). For example, the execution screen may display information on an external device connected through the external device interface unit 120, information corresponding to a video signal received from a specific external device, and the like.

The control unit 170 controls the display unit 140 to output a GUI for selecting the type of the external device connected to the HDMI port 121 to the execution screen in operation S333. In one example, the GUI may be displayed when an edit menu for editing information on the external device is selected. The GUI includes a first menu corresponding to a first type external device associated with a resolution (for example, a UHD level resolution) satisfying the first criterion and a second menu corresponding to a resolution satisfying the second criterion (for example, HD / FHD And a second menu corresponding to a second type of external device associated with the second type of external device.

The control unit 170 generates a first EDID corresponding to a resolution satisfying the first criterion and a second EDID corresponding to a resolution satisfying the second criterion based on the type of the external device selected through the GUI And causes either one to be transmitted to the external device (S334). For example, when the external device is a device that supports HDMI 2.0 and is connected to the multimedia device 100 through the HDMI port 121b, the user inputs the external device to a first type of external It is possible to transmit the first EDID, which is not the second EDID, to the external device even if the external device is connected to the HDMI port 121b. In another example, when the external device is a device that supports a lower version than HDMI 2.0 and is connected to the multimedia device 100 through the HDMI port 121a, the user connects the external device to the HD / FHD resolution through the GUI If the external device is selected as the second type external device, the external device can transmit the second EDID, which is not the first EDID, to the external device even though the external device is connected to the HDMI port 121a. However, the setting change of the HDMI port 121 can be applied after the multimedia device 100 is rebooted or the external device is disconnected from the HDMI port 121 and reconnected after the type of the external device is selected through the GUI have.

10 is a diagram for explaining an EDID transmitted to an external device when a user specifies a type of an external device in the multimedia device according to an embodiment of the present invention. Hereinafter, an example of the control method of the multimedia device described above with reference to FIG. 9 will be described with reference to FIG.

The controller 170 of the multimedia device 100 detects an external device connected to the HDMI port 121. [

The control unit 170 controls the display unit 140 to display the execution screen 340 of the menu when a menu for environment setting of the external input mode is executed by the user. For example, the execution screen 340 may display information about an external device connected through the external device interface unit 120, information corresponding to a video signal received from a specific external device, and the like.

When the user selects the edit menu 341 for editing the information on the external device connected to the specific HDMI port 121 through the execution screen 340, the control unit 170 sets the type of the external device And controls the display unit 140 to output the GUI 350 for selection. The GUI 350 includes a first menu 351 corresponding to a first type external device associated with a resolution (for example, a UHD level resolution) satisfying the first criterion and a second menu 351 corresponding to a resolution satisfying the second criterion And a second menu 352 corresponding to a second type of external device associated with the HD / FHD resolution (e.g., HD / FHD resolution).

As an example, it is assumed that the external device is a device supporting HDMI 2.0 and is connected to the multimedia device 100 through the HDMI port 121b. If the external device is selected as the first type external device related to the UHD level resolution through the GUI 350, the control unit 170 determines whether the external device is connected to the HDMI port 121b, 1 EDID to the external device. However, the setting of the HDMI port 121b may be changed by rebooting the multimedia device 100 or disconnecting the external device from the HDMI port 121b after the type of the external device is selected through the GUI 350 Can be applied thereafter. Specifically, when the external device supporting HDMI 2.0 is connected to the HDMI port 121b, the controller 170 downloads the second EDID from the memory 130 and transmits the downloaded second EDID to the external device However, after the multimedia device 100 is rebooted or the external device is disconnected from the HDMI port 121b and reconnected after the type of the external device is selected through the GUI 350, the connection of the external device is detected It may download the first EDID from the memory 130 and transmit the downloaded first EDID to the external device.

As another example, it is assumed that the external device is a device that supports a lower version than HDMI 2.0 and is connected to the multimedia device 100 through the HDMI port 121a. When the external device is selected as a second type external device related to the HD / FHD resolution through the GUI 350, the controller 170 determines that the first EDID is the same as the first EDID even if the external device is connected to the HDMI port 121a And transmits the second EDID to the external device. However, the setting of the HDMI port 121a may be changed by rebooting the multimedia device 100 or disconnecting the external device from the HDMI port 121a after the type of the external device is selected through the GUI 350 Can be applied thereafter. Specifically, when the external device supporting the lower version than HDMI 2.0 is connected to the HDMI port 121a, the controller 170 downloads the first EDID from the memory 130 and transmits the downloaded first EDID to the external After the multimedia device 100 is rebooted or the external device is disconnected from the HDMI port 121a and reconnected after the type of the external device is selected through the GUI 350, It may download the second EDID from the memory 130 and transmit the downloaded second EDID to the external device.

According to this embodiment, the EDID suitable for the type of the external device specified by the user is provided to the external device irrespective of which HDMI port the external device is connected to, so that the user can easily select the content Can be appreciated.

The present invention described above can be implemented as computer readable codes on a medium on which a program is recorded. The computer readable medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of the computer readable medium include a hard disk drive (HDD), a solid state disk (SSD), a silicon disk drive (SDD), a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, , And may also be implemented in the form of a carrier wave (e.g., transmission over the Internet). Also, the computer may include a control unit of the terminal. Accordingly, the above description should not be construed in a limiting sense in all respects and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.

100: Multimedia device
120: External device interface part
400: external device

Claims (13)

Detecting an external device connected to an HDMI (High-Definition Multimedia Interface) port for supporting a resolution satisfying a first criterion;
Transmitting a first EDID (Extended Display Identification Data) corresponding to a resolution satisfying the first criterion to the external device;
Receiving a video signal from the external device; And
And displaying a GUI for guiding the change of the EDID transmitted to the external device when an error exists in the received video signal. The method according to claim 1,
Wherein the GUI comprises a guide message for instructing the EDID transmitted to the external device to change from the first EDID to a second EDID corresponding to a resolution satisfying a second criterion lower than the first criterion, A method of controlling a device. 3. The method of claim 2,
Detecting a user command for selecting a change of an EDID transmitted to the external device through the GUI; And
Downloading the second EDID from the memory in accordance with the user command; And
And transmitting the downloaded second EDID to the external device. 3. The method of claim 2,
Detecting a user command for selecting a change of an EDID transmitted to the external device through the GUI;
Rebooting the multimedia device according to the user command;
Detecting the external device connected to the HDMI port for supporting a resolution satisfying the first criterion;
Downloading the second EDID from memory; And
And transmitting the downloaded second EDID to the external device. 3. The method of claim 2,
Detecting a user command for selecting a change of an EDID transmitted to the external device through the GUI;
Displaying a guide message for disconnecting the external device and reconnecting to the HDMI port according to the user command;
Detecting connection disconnection and reconnection of the external device to the HDMI port;
Downloading the second EDID from memory; And
And transmitting the downloaded second EDID to the external device. An external device interface unit connected to an external device through an HDMI (High-Definition Multimedia Interface) port for supporting a resolution satisfying a first criterion;
A memory for storing a first EDID corresponding to a resolution satisfying a first criterion and a second EDID corresponding to a resolution satisfying a second criterion lower than the first criterion;
A display unit; And
And a control unit,
Wherein,
Controls the external device interface unit to transmit the first EDID to the external device,
Controls the external device interface unit to receive a video signal from the external device,
And controls the display unit to display a GUI guiding a change of an EDID transmitted to the external device when an error exists in the received video signal. The method according to claim 6,
Wherein the GUI comprises a guide message for instructing the EDID transmitted to the external device to change from the first EDID to a second EDID corresponding to a resolution satisfying a second criterion lower than the first criterion, device. The method according to claim 6,
Wherein,
Detecting a user command for selecting a change of EDID transmitted to the external device through the GUI,
Downloading the second EDID from the memory according to the user command,
And controls the external device interface unit to transmit the downloaded second EDID to the external device. The method according to claim 6,
Wherein,
Detecting a user command for selecting a change of an EDID transmitted to the external device through the GUI,
Rebooting the multimedia device according to the user command,
Detects the external device connected to the HDMI port,
Downloading the second EDID from the memory,
And controls the external device interface unit to transmit the downloaded second EDID to the external device. The method according to claim 6,
Wherein,
Detecting a user command for selecting a change of an EDID transmitted to the external device through the GUI,
Controls the display unit to display a guide message to disconnect the external device and reconnect to the HDMI port according to the user command,
Detecting connection disconnection and reconnection of the external device to the HDMI port,
Downloading the second EDID from the memory,
And controls the external device interface unit to transmit the downloaded second EDID to the external device. An external device interface unit connected to an external device through an HDMI (High-Definition Multimedia Interface) port;
A memory for storing a first EDID corresponding to a resolution satisfying a first criterion and a second EDID corresponding to a resolution satisfying a second criterion lower than the first criterion;
A display unit; And
And a control unit,
Wherein,
Controlling the display unit to display an execution screen of the menu when a menu for environment setting of the external input mode is executed,
Controls the display unit to output a GUI for selecting a type of an external device connected to the HDMI port on the execution screen, and the GUI controls the first type of external device related to the resolution satisfying the first criterion And a second menu corresponding to a second type of external device associated with a resolution that satisfies the second criterion,
And controls the external device interface unit to transmit either the first EDID or the second EDID to the external device based on the type of the external device selected through the GUI. 12. The method of claim 11,
When the first menu in the GUI is selected,
Downloading the first EDID from the memory,
And controls the external device interface unit to transmit the downloaded first EDID to the external device. 12. The method of claim 11,
When the second menu in the GUI is selected,
Downloading the second EDID from the memory,
And controls the external device interface unit to transmit the downloaded second EDID to the external device.
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Cited By (8)

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CN106448534A (en) * 2016-10-09 2017-02-22 微鲸科技有限公司 Method and device for configuring and renewing EDID information
CN107026996A (en) * 2017-04-13 2017-08-08 西安万像电子科技有限公司 The transmission method of data, device and system
EP3836135A1 (en) * 2019-12-13 2021-06-16 Amlogic (Shenzhen), Ltd. Method and system for switching edid version in tv devices
WO2021118278A1 (en) * 2019-12-13 2021-06-17 Samsung Electronics Co., Ltd. Display device and operating method of the same
CN112988023A (en) * 2021-04-23 2021-06-18 Vidaa美国公司 Application display method and display equipment
WO2021261714A1 (en) * 2020-06-26 2021-12-30 삼성전자주식회사 Electronic device and control method therefor
US11350158B2 (en) 2018-09-11 2022-05-31 Samsung Electronics Co., Ltd. Electronic device and control method thereof
WO2022169104A1 (en) * 2021-02-08 2022-08-11 삼성전자주식회사 Electronic apparatus and control method therefor

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106448534A (en) * 2016-10-09 2017-02-22 微鲸科技有限公司 Method and device for configuring and renewing EDID information
CN107026996A (en) * 2017-04-13 2017-08-08 西安万像电子科技有限公司 The transmission method of data, device and system
CN107026996B (en) * 2017-04-13 2018-08-14 西安万像电子科技有限公司 The transmission method of data, device and system
US11350158B2 (en) 2018-09-11 2022-05-31 Samsung Electronics Co., Ltd. Electronic device and control method thereof
EP3836135A1 (en) * 2019-12-13 2021-06-16 Amlogic (Shenzhen), Ltd. Method and system for switching edid version in tv devices
WO2021118278A1 (en) * 2019-12-13 2021-06-17 Samsung Electronics Co., Ltd. Display device and operating method of the same
WO2021261714A1 (en) * 2020-06-26 2021-12-30 삼성전자주식회사 Electronic device and control method therefor
WO2022169104A1 (en) * 2021-02-08 2022-08-11 삼성전자주식회사 Electronic apparatus and control method therefor
US11735095B2 (en) 2021-02-08 2023-08-22 Samsung Electronics Co., Ltd. Electronic apparatus and controlling method thereof
CN112988023A (en) * 2021-04-23 2021-06-18 Vidaa美国公司 Application display method and display equipment

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