Patent ID: 12190876

BEST MODE

Hereinafter, embodiments relating to the present disclosure will be described in detail with reference to the accompanying drawings. The suffixes “module” and “unit” for components used in the description below are assigned or mixed in consideration of easiness in writing the specification and do not have distinctive meanings or roles by themselves.

A display device according to an embodiment of the present disclosure, for example, as an artificial display device that adds a computer supporting function to a broadcast receiving function, can have an easy-to-use interface such as a writing input device, a touch screen, or a spatial remote control device as an Internet function is added while fulfilling the broadcast receiving function. Then, with the support of a wired or wireless Internet function, it is possible to perform an e-mail, web browsing, banking, or game function in access to Internet and computers. In order to perform such various functions, standardized general purpose OS can be used.

Accordingly, since various applications are freely added or deleted on a general purpose OS kernel, a display device described herein, for example, can perform various user-friendly functions. The display device, in more detail, can be a network TV, Hybrid Broadcast Broadband TV (HBBTV), smart TV, light-emitting diode (LED) TV, organic light-emitting diode (OLED) TV, and so on and in some cases, can be applied to a smartphone.

FIG.1is a block diagram illustrating a configuration of a display device according to an embodiment of the present disclosure.

Referring toFIG.1, a display device100can include a broadcast reception unit130, an external device interface unit135, a storage unit140, a user interface unit150, a control unit170, a wireless communication unit173, a display unit180, an audio output unit185, and a power supply unit190.

The broadcast reception unit130can include a tuner131, a demodulation unit132, and a network interface unit133.

The tuner131can select a specific broadcast channel according to a channel selection command. The tuner131can receive broadcast signals for the selected specific broadcast channel.

The demodulation unit132can divide the received broadcast signals into video signals, audio signals, and broadcast program related data signals and restore the divided video signals, audio signals, and data signals to an output available form.

The external device interface unit135can receive an application or an application list in an adjacent external device and deliver it to the control unit170or the storage unit140.

The external device interface unit135can provide a connection path between the display device100and an external device. The external device interface unit135can receive at least one an image or audio output from an external device that is wirelessly or wiredly connected to the display device100and deliver it to the control unit170. The external device interface unit135can include a plurality of external input terminals. The plurality of external input terminals can include an RGB terminal, at least one High Definition Multimedia Interface (HDMI) terminal, and a component terminal.

An image signal of an external device input through the external device interface unit135can be output through the display unit180. A sound signal of an external device input through the external device interface unit135can be output through the audio output unit185.

An external device connectable to the external device interface unit135can be one of a set-top box, a Blu-ray player, a DVD player, a game console, a sound bar, a smartphone, a PC, a USB Memory, and a home theater system, but this is just exemplary.

The network interface unit133can provide an interface for connecting the display device100to a wired/wireless network including the Internet network. The network interface unit133can transmit or receive data to or from another user or another electronic device through an accessed network or another network linked to the accessed network.

Additionally, some content data stored in the display device100can be transmitted to a user or an electronic device, which is selected from other users or other electronic devices pre-registered in the display device100.

The network interface unit133can access a predetermined webpage through an accessed network or another network linked to the accessed network. That is, the network interface unit133can transmit or receive data to or from a corresponding server by accessing a predetermined webpage through the network.

Then, the network interface unit133can receive contents or data provided from a content provider or a network operator. That is, the network interface unit133can receive contents such as movies, advertisements, games, VODs, and broadcast signals, which are provided from a content provider or a network provider, through network and information relating thereto.

Additionally, the network interface unit133can receive firmware update information and update files provided from a network operator and transmit data to an Internet or content provider or a network operator.

The network interface unit133can select and receive a desired application among applications open to the air, through network.

The storage unit140can store signal-processed image, voice, or data signals stored by a program in order for each signal processing and control in the control unit170.

Additionally, the storage unit140can perform a function for temporarily storing image, voice, or data signals output from the external device interface unit135or the network interface unit133and can store information on a predetermined image through a channel memory function.

The storage unit140can store an application or an application list input from the external device interface unit135or the network interface unit133.

The display device100can play content files (for example, video files, still image files, music files, document files, application files, and so on) stored in the storage unit140and provide them to a user.

The user interface unit150can deliver signals input by a user to the control unit170or deliver signals from the control unit170to a user. For example, the user interface unit150can receive or process control signals such as power on/off, channel selection, and screen setting from the remote control device200or transmit control signals from the control unit170to the remote control device200according to various communication methods such as Bluetooth, Ultra Wideband (WB), ZigBee, Radio Frequency (RF), and IR.

Additionally, the user interface unit150can deliver, to the control unit170, control signals input from local keys (not shown) such as a power key, a channel key, a volume key, and a setting key.

Image signals that are image-processed in the control unit170can be input to the display unit180and displayed as an image corresponding to corresponding image signals. Additionally, image signals that are image-processed in the control unit170can be input to an external output device through the external device interface unit135.

Voice signals processed in the control unit170can be output to the audio output unit185. Additionally, voice signals processed in the control unit170can be input to an external output device through the external device interface unit135.

Besides that, the control unit170can control overall operations in the display device100.

Additionally, the control unit170can control the display device100by a user command or internal program input through the user interface unit150and download a desired application or application list into the display device100in access to network.

The control unit170can output channel information selected by a user together with processed image or voice signals through the display unit180or the audio output unit185.

Additionally, according to an external device image playback command received through the user interface unit150, the control unit170can output image signals or voice signals of an external device such as a camera or a camcorder, which are input through the external device interface unit135, through the display unit180or the audio output unit185.

Moreover, the control unit170can control the display unit180to display images and control broadcast images input through the tuner131, external input images input through the external device interface unit135, images input through the network interface unit, or images stored in the storage unit140to be displayed on the display unit180. In this case, an image displayed on the display unit180can be a still image or video and also can be a 2D image or a 3D image.

Additionally, the control unit170can play content stored in the display device100, received broadcast content, and external input content input from the outside, and the content can be in various formats such as broadcast images, external input images, audio files, still images, accessed web screens, and document files.

Moreover, the wireless communication unit173can perform a wired or wireless communication with an external electronic device. The wireless communication unit173can perform short-range communication with an external device. For this, the wireless communication unit173can support short-range communication by using at least one of Bluetooth™, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, Near Field Communication (NFC), Wireless-Fidelity (Wi-Fi), Wi-Fi Direct, and Wireless Universal Serial Bus (USB) technologies. The wireless communication unit173can support wireless communication between the display device100and a wireless communication system, between the display device100and another display device100, or between networks including the display device100and another display device100(or an external server) through wireless area networks. The wireless area networks can be wireless personal area networks.

Herein, the other display device100can be a mobile terminal such as a wearable device (for example, a smart watch, a smart glass, and a head mounted display (HMD)) or a smartphone, which is capable of exchanging data (or inter-working) with the display device100. The wireless communication unit173can detect (or recognize) a communicable wearable device around the display device100. Furthermore, if the detected wearable device is a device authenticated to communicate with the display device100, the control unit170can transmit at least part of data processed in the display device100to the wearable device through the wireless communication unit173. Accordingly, a user of the wearable device can use the data processed in the display device100through the wearable device.

The display unit180can convert image signals, data signals, or on-screen display (OSD) signals, which are processed in the control unit170, or images signals or data signals, which are received in the external device interface unit135, into R, G, and B signals to generate driving signals.

Furthermore, the display device100shown inFIG.1is just one embodiment of the present disclosure and thus, some of the components shown can be integrated, added, or omitted according to the specification of the actually implemented display device100.

That is, if necessary, two or more components can be integrated into one component or one component can be divided into two or more components and configured. Additionally, a function performed by each block is to describe an embodiment of the present disclosure and its specific operation or device does not limit the scope of the present disclosure.

According to another embodiment of the present disclosure, unlikeFIG.1, the display device100can receive images through the network interface unit133or the external device interface unit135and play them without including the tuner131and the demodulation unit132.

For example, the display device100can be divided into an image processing device such as a set-top box for receiving broadcast signals or contents according to various network services and a content playback device for playing contents input from the image processing device.

In this case, an operating method of a display device according to an embodiment of the present disclosure described below can be performed by one of the display device described with reference toFIG.1, an image processing device such as the separated set-top box, and a content playback device including the display unit180and the audio output unit185.

Then, referring toFIGS.2and3, a remote control device is described according to an embodiment of the present disclosure.

FIG.2is a block diagram illustrating a remote control device according to an embodiment of the present disclosure andFIG.3is a view illustrating an actual configuration of a remote control device according to an embodiment of the present disclosure.

First, referring toFIG.2, a remote control device200can include a fingerprint recognition unit210, a wireless communication unit220, a user input unit230, a sensor unit240, an output unit250, a power supply unit260, a storage unit270, a control unit280, and a sound acquisition unit290.

Referring toFIG.2, the wireless communication unit220transmits/receives signals to/from an arbitrary any one of display devices according to the above-mentioned embodiments of the present disclosure.

The remote control device200can include a radio frequency (RF) module221for transmitting/receiving signals to/from the display device100according to the RF communication standards and an IR module223for transmitting/receiving signals to/from the display device100according to the IR communication standards. Additionally, the remote control device200can include a Bluetooth module225for transmitting/receiving signals to/from the display device100according to the Bluetooth communication standards. Additionally, the remote control device200can include a Near Field Communication (NFC) module227for transmitting/receiving signals to/from the display device100according to the NFC communication standards and a WLAN module229for transmitting/receiving signals to/from the display device100according to the Wireless LAN (WLAN) communication standards.

Additionally, the remote control device200can transmit signals containing information on a movement of the remote control device200to the display device100through the wireless communication unit220.

Moreover, the remote control device200can receive signals transmitted from the display device100through the RF module221and if necessary, can transmit a command on power on/off, channel change, and volume change to the display device100through the IR module223.

The user input unit230can be configured with a keypad button, a touch pad, or a touch screen. A user can manipulate the user input unit230to input a command relating to the display device100to the remote control device200. If the user input unit230includes a hard key button, a user can input a command relating to the display device100to the remote control device200through the push operation of the hard key button. This will be described with reference toFIG.3.

Referring toFIG.3, the remote control device200can include a plurality of buttons. The plurality of buttons can include a fingerprint recognition button212, a power button231, a home button232, a live button233, an external input button234, a voice adjustment button235, a voice recognition button236, a channel change button237, a check button238, and a back button239.

The fingerprint recognition button212can be a button for recognizing a user's fingerprint. According to an embodiment of the present disclosure, the fingerprint recognition button212can perform a push operation and receive a push operation and a fingerprint recognition operation. The power button231can be button for turning on/off the power of the display device100. The home button232can be a button for moving to the home screen of the display device100. The live button233can be a button for displaying live broadcast programs. The external input button234can be a button for receiving an external input connected to the display device100. The voice adjustment button235can be a button for adjusting the size of a volume output from the display device100. The voice recognition button236can be a button for receiving user's voice and recognizing the received voice. The channel change button237can be a button for receiving broadcast signals of a specific broadcast channel. The check button238can be a button for selecting a specific function and the back button239can be a button for returning to a previous screen.

The following description will be described with reference toFIG.2again.

If the user input unit230includes a touch screen, a user can touch a soft key of the touch screen to input a command relating to the display device100to the remote control device200. Additionally, the user input unit230can include various kinds of input means manipulated by a user, for example, a scroll key and a jog key, and this embodiment does not limit the scope of the present disclosure.

The sensor unit240can include a gyro sensor241or an acceleration sensor243and the gyro sensor241can sense information on a movement of the remote control device200.

For example, the gyro sensor241can sense information on an operation of the remote control device200on the basis of x, y, and z axes and the acceleration sensor243can sense information on a movement speed of the remote control device200. Moreover, the remote control device200can further include a distance measurement sensor and sense a distance with respect to the display unit180of the display device100.

The output unit250can output image or voice signals in response to manipulation of the user input unit230or image or voice signals corresponding to signals transmitted from the display device100. A user can recognize whether the user input unit230is manipulated or the display device100is controlled through the output unit250.

For example, the output unit250can include an LED module251for flashing, a vibration module253for generating vibration, a sound output module255for outputting sound, or a display module257for outputting an image, if the user input unit230is manipulated or signals are transmitted/received to/from the display device100through the wireless communication unit220.

Additionally, the power supply unit260supplies power to the remote control device200and if the remote control device200does not move for a predetermined time, stops the power supply, so that power waste can be reduced. The power supply unit260can resume the power supply if a predetermined key provided at the remote control device200is manipulated.

The storage unit270can store various kinds of programs and application data necessary for control or operation of the remote control device200. If the remote control device200transmits/receives signals wirelessly through the display device100and the RF module221, the remote control device200and the display device100transmits/receives signals through a predetermined frequency band.

The control unit280of the remote control device200can store, in the storage unit270, information on a frequency band for transmitting/receiving signals to/from the display device100paired with the remote control device200and refer to it.

The control unit280controls general matters relating to control of the remote control device200. The control unit280can transmit a signal corresponding to a predetermined key manipulation of the user input unit230or a signal corresponding to movement of the remote control device200sensed by the sensor unit240to the display device100through the wireless communication unit220.

Additionally, the sound acquisition unit290of the remote control device200can obtain voice.

The sound acquisition unit290can include at least one microphone and obtain voice through the microphone291.

The following description will be described with reference toFIG.2again.

FIG.4is a view of utilizing a remote control device according to an embodiment of the present disclosure.

FIG.4(a)illustrates that a pointer205corresponding to the remote control device200is displayed on the display unit180.

A user can move or rotate the remote control device200vertically or horizontally. The pointer205displayed on the display unit180of the display device100corresponds to a movement of the remote control device200. Since the corresponding pointer205is moved and displayed according to a movement on a 3D space as show in the drawing, the remote control device200can be referred to as a spatial remote control device.

FIG.4(b)illustrates that if a user moves the remote control device200, the pointer205displayed on the display unit180of the display device100is moved to the left according to the movement of the remote control device200.

Information on a movement of the remote control device200detected through a sensor of the remote control device200is transmitted to the display device100. The display device100can calculate the coordinates of the pointer205from the information on the movement of the remote control device200. The display device100can display the pointer205to match the calculated coordinates.

FIG.4(c)illustrates that while a specific button in the remote control device200is pressed, a user moves the remote control device200away from the display unit180. Thus, a selection area in the display unit180corresponding to the pointer205can be zoomed in and displayed larger.

On the other hand, if a user moves the remote control device200close to the display unit180, a selection area in the display unit180corresponding to the pointer205can be zoomed out and displayed in a reduced size.

On the other hand, if the remote control device200is moved away from the display unit180, a selection area can be zoomed out and if the remote control device200is moved closer to the display unit180, a selection area can be zoomed in.

Additionally, if a specific button in the remote control device200is pressed, recognition of a vertical or horizontal movement can be excluded. That is, if the remote control device200is moved away from or closer to the display unit180, the up, down, left, or right movement cannot be recognized and only the back and forth movement can be recognized. While a specific button in the remote control device200is not pressed, only the pointer205is moved according to the up, down, left or right movement of the remote control device200.

Moreover, the moving speed or moving direction of the pointer205can correspond to the moving speed or moving direction of the remote control device200.

Furthermore, a pointer in this specification means an object displayed on the display unit180in response to an operation of the remote control device200. Accordingly, besides an arrow form displayed as the pointer205in the drawing, various forms of objects are possible. For example, the above concept includes a point, a cursor, a prompt, and a thick outline. Then, the pointer205can be displayed in correspondence to one point of a horizontal axis and a vertical axis on the display unit180and also can be displayed in correspondence to a plurality of points such as a line and a surface.

FIG.5is a block diagram illustrating the configuration of an AI server according to an embodiment of the present disclosure.

Referring toFIG.5, an artificial intelligence (AI) server10may refer to a device to train an artificial neural network using a machine learning algorithm or a device employing the artificial neural network.

In this case, the AI server10may include a plurality of servers to perform distribution processing, and may be defined in the form of a 5G network. In this case, the AI server10is included in the display device100as a component, and may perform at least a portion of AI processing together.

The AI server10may include a communication device61, a memory63, a learning processor64, and a processor66.

The communication device61may transmit or receive data together with an external device such as the display device100.

The memory63may include a model storage63-1. The model storage63-1may store a model (or an artificial neural network) which is being trained or has been trained through the learning processor64.

The learning processor64may train an artificial neural network63-2using learning data. The learning model may be used mounted in the AI server10of the ANN or may be used mounted in an external device such as the display device100.

The learning model may be implemented through hardware, software, or the combination of hardware and software. When a portion or an entire portion of the learning model is implemented through software, at least one instruction constituting the learning model may be stored in the memory63.

The processor66may infer a result value of novel input data using the learning model, and may make a response or a control command based on the inferred result value.

FIG.6is a view illustrating the configuration of an AI system according to another embodiment of the present disclosure.

Referring toFIG.6, the AI system6may include the display device100, a data conversion server610, and an NLP server630.

The display device100may transmit voice data, which corresponds to a voice command uttered by a user, to the data conversion server610.

The data conversion server610may receive the voice data from the display device100. The data conversion server610may convert the received voice data into text data.

The data conversion server610may convert an intent result in the text form, which is received from the NLP server630, into voice data in an audio form, and may transmit the converted voice data to the display device100.

The data conversion server610may transmit the voice data, which indicates the change in an AI agent, to the display device100.

The natural language process (NLP) server630may include a first AI agent server631and a second AI agent server633.

The NLP server630may receive text data from the data conversion server610, and may analyze the intent of the received text data by using a natural language processing engine.

The NLP server630may include at least one AI agent server.

For example, the NLP server630may include a first AI agent server631and a second AI agent server633.

The first AI agent server631may be a server to provide a natural language processing service through manufacturers other than manufacturers of the display device100.

The second AI agent server633may be a server to provide a natural language processing service through the manufacturers of the display device100.

Each of the first AI agent server631and the second AI agent server633may include components of the AI server10illustrated inFIG.5.

The data conversion server610may transmit the text data to the first AI agent server631.

The first AI agent server631may acquire the intent of the text data, and may determine whether the operation corresponding to the acquired intent is processed.

The first AI agent server631may acquire an intent analyzing result corresponding to the intent, when it is determined that the operation corresponding to the acquired intent is processed.

The first AI agent server631may transmit the intent of the text data to the second AI agent server633, when it is determined that the operation corresponding to the acquired intent cannot be processed.

The second AI agent server633may acquire an intent analysis result corresponding to the received intent of the text data, and may transmit the acquired intent analysis result to the first AI agent server631.

The first AI agent server631may transmit the intent analysis result to the data conversion server610.

The data conversion server610may transmit the intent analysis result to an NLP client101of the display device100.

The display device100may further include the NLP client101, a voice agent103, and a renderer105.

The NLP client101, the voice agent103, and the renderer105may be included in the control unit170illustrated inFIG.1.

For another example, the NLP client101may include a network interface unit133illustrated inFIG.1.

The NLP client101may communicate with the data conversion server610.

The voice agent103may receive a signal for entering into a voice recognition mode, from the remote control device200, and may activate the operation of a microphone provided in the display device100, in response to the received signal.

The voice agent103may transmit, to the NLP client101, a voice command received from the microphone provided in the display device100, or a voice command received from the remote control device200.

The voice agent103may receive the intent analysis result or the search information, received by the NLP client103, from the NLP server630.

The voice agent103may execute an application, based on information on the intent analysis result, or may perform a function corresponding to a button key of the remote control device200.

The voice agent103may be included in components of the NLP client103.

The renderer105may generate an UI through a GUI module to display the received search information on the display unit180, and may output the generated UI to the display unit180.

FIG.7is a ladder diagram for the operating method of an AI system, according to an embodiment of the disclosure.

Hereinafter, the operating method of a system according to an embodiment of the present disclosure will be described with reference toFIGS.5and6.

Referring toFIG.7, the control unit170of the display device100receives a starting command uttered by the user (S701).

According to an embodiment, the display device100may include a microphone, and may receive a voice command of a user through the microphone.

According to another embodiment, the wireless communication unit173of the display device100may receive the voice command from the remote control device200. In other words, the user may utter the voice command through the remote control device200, and may send the uttered voice command to the display device100through the remote control device200.

The starting command may be a command to activate a voice recognition service.

The starting command may be varied depending on an AI agent to provide the voice recognition service. The AI agent may be hardware or software which recognizes the voice command uttered by the user, and provide information based on the intent of the recognized voice command.

The display device100may include a plurality of AI agents.

The control unit170of the display device100may identify the first AI agent corresponding to the starting command (S703).

The control unit170may receive the starting command, and may identify the AI agent corresponding to the starting command, when the received starting command is a command previously stored in the storage unit140.

The AIG agent may be a subject which provides a voice recognition service. A plurality of AI agents may correspond to a plurality of starting commands.

The storage unit140may store the plurality of starting commands and the plurality of AI agents corresponding to the plurality of starting commands.

The control unit170of the display device100displays the first UI corresponding to the first AI agent (S705).

The first user interface (UI) may be an identifier indicating that the first AI agent provides the voice recognition service.

The first UI may show an origin of the AI agent providing the voice recognition service.

When the control unit170identifies the first AI agent through the recognized starting command, the control unit170may display, onto the display unit180, the first UI showing that the voice recognition service may be provided by the first AI agent.

When the control unit170identifies the second AI agent through the recognized starting command, the control unit170may display, onto the display unit180, the second UI, which shows that the voice recognition service may be provided by the second AI agent.

The details thereof will be described with reference toFIGS.8A and8B.

FIGS.8A and8Bare views illustrating a method for showing an AI agent depending on the recognition of the starting command, according to an embodiment of the present disclosure.

Referring toFIG.8A, the user may utter a first starting command (HI KK).

The display device100may recognize the first starting command, and may identify the first AI agent corresponding to the recognized first starting command. The display device100may display, onto the display unit180, a first UI810showing that the voice recognition service may be provided through the identified first AI agent.

The first UI810may include an icon having the form of a microphone and a text for inducing the utterance of the user.

The display device100may display the first UI810while expressing the name of the first AI agent through the audio output unit185.

Accordingly, the user may recognize the subject which provides the voice recognition service.

Referring toFIG.8B, the user may utter a second starting command (OK DO).

The display device100may recognize the second starting command and may identify the second AI agent corresponding to the second starting command. The display device100may display, onto the display device180, a second UI830showing that the voice recognition service may be provided by the identified second AI agent.

The display device100may display the second UI830while expressing the name of the first AI agent through the audio output unit185.

The second UI830may include an icon having the form of a microphone and a text for inducing the utterance of the user.

The following description will be made with reference toFIG.7again.

The control unit170of the display device100may transmit the recognition result of the starting command to the NLP server630through a network interface unit133(S707).

The recognition result of the starting command may include identification information for identifying the AI agent corresponding to the starting command.

The identification information may include all information, such as the name of the AI agent, for identifying the AI agent.

The NLP server639may store the recognition result of the starting command received from the display device100.

Thereafter, the control unit170of the display device100may receive an operating command uttered by the user (S709)

The operating command may be a command for controlling a specific operation of the display device100, after activating the voice recognition function.

For example, the operating command may be a command for requesting for searching for information on a program or a weather.

The control unit170of the display device100transmits voice data corresponding to the operating command to the NLP server630through the network interface unit133(S711).

The NLP client101may transmit the voice data corresponding to the operating command to the NLP server630. In this case, the NLP server630is assumed as including the data conversion server610.

The NLP server630acquires the text data by converting voice data received from the display device100into text data (S713).

The NLP server630acquires an intent fulfillment result of the text data, and identifies an AI agent which has provided the intent fulfillment result (S715).

A first AI agent server631of the NLP server630may acquire the intent of text data received from the data conversion server610.

When the first AI agent server631determines that the intent of the text data is not able to be processed, the first AI agent server631may transmit the intent of the text data to the second AI agent server633.

The second AI agent server631may acquire an intent fulfillment result, when the second AI agent server631determines that the intent of the text data is processed by the second AI agent server631.

When the first AI agent server631determines that the intent of the text is able to be processed by the first AI agent server631, the first AI agent server631may acquire the fulfillment result of the intent.

The NLP server630may detect an agent server, which acquires the intent fulfillment result, of the first AI agent server631and the second AI agent server633.

The NLP server630determines whether the identified AI agent is identical to the first AI agent corresponding to the starting command (S717).

When the identified AI agent is not identical to the first AI agent, the NLP server630transmits an AI agent change notification, and the intent fulfillment result through the second AI agent, to the display device100(S719).

In other words, the NLP server630may determine the AI agent, which is a subject, which processes the operating command, as being changed from the first AI agent to the second AI agent, when the identified AI agent is not identical to the first AI agent.

The NLP server630may transmit, to the display device100, the notification of that the AI agent is changed from the first AI agent to the second AI agent, and the intent fulfillment result acquired through the second AI agent.

The control unit170of the display device100displays, onto the display unit180, the second UI corresponding to the second AI agent, based on the notification of the change of the received AI agent (S721).

The control unit170may determine the subject, which provides the voice recognition service, as being changed, based on an AI agent change notification. The control unit170may change the first UI to the second UI for identifying the second AI agent.

In addition, the control unit170may output, through the audio output unit185, an audio signal indicating that the subject which provides the voice recognition service is changed from the first AI agent to the second AI agent.

The user may easily recognize the change of the AI agent to provide the voice recognition service, through the second UI.

The control unit170of the display device100may display, onto the display unit180, the intent fulfillment result provided by the second AI agent (S723).

The control unit170may display, onto the display unit180, the intent fulfillment result provided by the second AI agent, after displaying the second UI.

Meanwhile, the NLP server630transmits, to the display device100, an intent analysis result through the first AI agent, when the first AI agent is identical to the second AI agent (S725).

The control unit170of the display device100displays, onto the display unit180, the intent analysis result through the first AI agent (S727).

FIGS.9and10are views illustrating the process of notifying the change of the AI agent, when the AI agent is changed in response to the operating command uttered by the user, according to an embodiment of the present disclosure.

Referring toFIG.9, the user utters the starting command <HI KK>.

In this case, ‘KK’ may be the name of the first AI agent. The display device100may recognize the starting command uttered by the user, and may identify the first AI agent corresponding to the recognized starting command.

The display device100may display, onto the display unit180, the first UI810showing that the voice recognition service is provided through the first AI agent.

The display device100may transmit, to the NLP server630, the recognition result of the starting command, which includes identification information of the first AI agent identified.

Thereafter, the user utters <How is the weather> which is the operating command.

The display device100may transmit the voice data, which corresponds to the operating command, to the NLP SERVER630.

The NLP server630may analyze the intent of the voice data, and may determine the AI agent which processes the analyzed intent.

For example, the first AI agent may not process the intent of requesting for the weather information, but may process the intent of requesting for searching for a film. In addition, the second AI agent may process the intent of requesting the weather information, but may not process the intent of requesting searching for the film.

The NLP server630may detect that the intent of the operating command is the request for the weather information, and may determine the second AI agent, which is able to search for the weather information, as an agent appropriate to processing the intent.

In this case, the NLP server630may determine the subject, which provides the voice recognition service, as being changed from the first AI agent to the second AI agent.

The NLP server630may transmit, to the display device100, the weather information acquired by the second AI agent corresponding to the second AI agent and a notification of indicating that the AI agent is changed.

The display device100may display, onto the display unit180, the second UI830for identifying the second AI agent and a notification910indicating that the AI agent is changed from the first AI agent to the second AI agent, in response to the operating command, as illustrated inFIG.9. Simultaneously, the display device100may output, through the audio output unit185, voice indicating that the AI agent is changed from the first AI agent to the second AI agent.

The second AI830may include the icon having the form of a microphone and indicating the origin of the second AI agent.

A user may easily recognize that the AI agent to provide the voice recognition service is changed, through the second UI830or the notification910.

Meanwhile, the display device100may display, onto the display unit180, weather information1000received from the NLP server630, as illustrated inFIG.10.

Accordingly, the user may receive the weather information1000corresponding to the operating command through the changed AI agent.

In other words, even though the AI agent corresponding to the operating command uttered by the user is different from the AI agent corresponding to the starting command, the user may receive information based on the intent of the operating command uttered.

FIGS.11and12are views illustrating the process of notifying the change of the AI agent, when the AI agent is changed in response to the operating command uttered by the user, according to still another embodiment of the present disclosure.

First, referring toFIG.11, the user utters “OK DD” which is the starting command.

‘DD’ may be the name of the second AI agent. The display device100may recognize the starting command uttered by the user, and may identify the second AI agent corresponding to the recognized starting command.

The display device100may display, onto the display unit180, the second UI830indicating that the voice recognition service is provided through the second AI agent.

The display device100may transmit, to the NLP server630, the recognition result of the starting command including the identification information of the identified second AI agent.

Thereafter, the user utters “Search Movie” which is the operating command.

The display device100may transmit, to the NLP server630, voice data corresponding to the operating command.

The NLP server630may analyze the intent of the voice data, and may determine the AI agent which is able to process the analyzed intent.

For example, the first AI agent may not process the intent of requesting for the weather information, but may process the intent of requesting for searching for a film. The second AI agent may process the intent of requesting for the weather information, but may not process the intent of requesting for searching for the film.

The NLP server630may detect that the intent of the operating command is the request for searching for the film, and may determine the first AI agent, which is able to search for the film, as an agent appropriate to processing the intent.

In this case, the NLP server630may determine the subject, which provides the voice recognition service, as being changed from the second AI agent to the first AI agent.

The NLP server630may transmit, to the display device100, film search information acquired by the first AI agent server633corresponding to the first AI agent and the notification of the change of the AI agent.

The display device100may display, onto the display unit180, a first UI810for identifying the first AI agent and a notification1110for indicating that the AI agent is changed from the second AI agent to the first AI agent, in response to the operating command, as illustrated inFIG.11. Simultaneously, the display device100may output, through the audio output unit185, the voice for indicating the AI agent is changed from the second AI agent to the first AI agent.

The first UI810may include the icon having the form of a microphone, which indicates the origin of the first AI agent.

The user may easily recognize that the AI agent providing the voice recognition service is changed through the first UI810or the notification1110.

Meanwhile, the display device100may display, onto the display unit180, film search information1200received from the NLP server630as illustrated inFIG.11.

Accordingly, the user may receive the film search information1200corresponding to the operating command through the changed AI agent.

In other words, even though the AI agent corresponding to the starting command uttered by the user is different from the AI agent corresponding to the operating command, the user may receive information based on the intent of the operating command uttered by the user.

FIG.13is a view illustrating a table showing the correspondence among a starting word uttered by a user, and a UI and an intent fulfillment result displayed depending on a search word.

The starting word and the search word described above may correspond to the operating command.

In addition, a microphone UI and an origin UI may correspond to any one of the first UI810and the second UI830described with reference toFIGS.8A and8B.

For example, a KK microphone UI may correspond to the first UI810and a DD microphone UI may correspond to the second UI830.

A result card may be a card indicating an intent fulfillment result described with reference toFIG.7.

In addition, it is assumed that the first AI agent may not search for the weather information, but may search for film information, and the second agent may search for the weather information, but may not search for the film information.

First, an operating word, which is <HI KK>, will be described below. In this case, the microphone UI may be a KK microphone UI to identify the identified first AI agent based on the starting word.

When the search word is <weather>, the first AI agent may not search for the weather information, but the second AI agent may search for the weather information. Accordingly, the KK microphone UI may be changed to a DD origin UI for identifying the second AI agent.

The result card may be provided through the second AI agent which is the origin for providing the weather information, and may be a card displayed on the display device100.

Meanwhile, when the search ward is <Search Movies>, the first AI agent may not search for the film. Accordingly, the origin UI may be identical to the KK microphone UI for identifying an existing first AI agent.

The result card may be a card provided through the first AI agent which is an origin for providing the film search information.

Next, an operating word, which is <OK DD>, will be described below. In this case, the microphone UI may be a DD microphone UI for identifying the identified second AI agent identified based on the starting word.

When the search word is <weather>, the second AI agent may search for the weather information and the first AI agent may not search for the weather information. Accordingly, the DD microphone UI may be maintained to an origin UI.

The result card may be a card provided through the second AI agent which is the origin providing the film search information, and displayed on the display device100.

Meanwhile, when the search word is <Search Movies>, the second AI agent may not search for the film, and the first AI agent may search for the film. Accordingly, the DD microphone UI may be changed to a KK origin UI for identifying the first AI agent.

The result card may be a card provided through the first AI agent which is the origin providing the film search information.

FIG.14illustrates an AI table obtained by organizing AI agents supported for a plurality of languages according to an embodiment of the present disclosure.

Referring toFIG.14, an AI table1400is a table obtained by organizing services supported for the plurality of languages.

The AI table1400may be a table stored in the NLP server630or a service delivery platform (SDP) server described below.

The language item1401may be an item for representing a plurality of languages.

An STT item1410may be an item for representing whether an STT function for each language is supported. The STT function may be a function of converting the voice data to text data.

An NLP item1430may be an item for analyzing the intent of text data converted for each language.

A KK item1450may be an item for representing whether the voice recognition service is provided through the first AI agent (KK).

The DD item1470may be an item for representing whether the voice recognition service is provided through the second AI agent (DD).

The display device100may receive the AI table1400from the NLP server630or the SDP server through the NLP client101, when powered on.

In other words, the display device100may read the AI table1400from the NLP server630or the SDP server and may store the AI table1400, when powered on.

The display device100may display the received AI table1400onto a language menu.

FIG.15is a view illustrating that a service which is able to be s supported for each language is displayed on a language menu by using an AI table, according to an embodiment of the present disclosure.

FIG.15illustrates a language menu1500for setting a language used in voice recognition.

The language menu1500may include a first language item1510, a second language item1530, and a third language item1550.

Each of the first language item1510, the second language item1530, and the third language item1550may include an identifier for identifying a voice recognition support service which is able to be supported for each relevant language.

The display device100may display, on the language menu1500, at least one identifier for representing a service which is able to be supported for the first language item1510, the second language item1530, and the third language item1550.

For example, the first language item1510may include a first identifier1501for indicating that an STT function is able to be supported with respect to English, a second identifier1503for indicating that an NLP function is able to be supported, a third identifier1505for indicating that voice recognition service is able to be supported through the first AI agent, and a fourth identifier1507for indicating that the voice recognition service is able to be supported through the second AI agent.

The third identifier1505and the fourth identifier1507may represent origins to provide the voice recognition service.

The second language item1530may include the first identifier1501for indicating that the STT function is able to be supported, the second identifier1503for indicating that the NLP function is able to be supported, and the third identifier1505for indicating that the voice recognition service is able to be supported through the first AI agent.

The third language item1550may include the first identifier1501for indicating that the STT function is able to be supported.

The user may easily recognize the AI agent supported for each language, under multiple AI environments, through the language menu1500.

In addition, the user may easily recognize, through the language menu1500, whether only an STT function is supported for each language, or whether the STT function is supported for each language together with the NLP function.

The user may select the AI agent, which provides the voice recognition service, on the language menu1500, as the third identifier1505and the fourth identifier1507is selected.

For example, when the third identifier1505is selected on the first language item1510, the display device100may provide the voice recognition result of the voice command uttered by the user, through the first AI agent.

FIG.16is a view illustrating the procedure of outputting an intent fulfillment result corresponding to a voice command, depending on an AI agent selected on a language menu, according to an embodiment of the present disclosure.

Referring toFIG.16, the NLP client101may include a first AI plug-in SDK1610, a second AI plug-in SDK1630, and a dynamic AI loader1650.

The first AI plug-in SDK1610may include software development tool collections used to provide the voice recognition service through the first AI agent server631.

The first AI plug-in SDK1610may receive an intent fulfillment result corresponding to a voice command, from the first AI agent server631.

The voice agent103may output the intent fulfillment result received from the first AI plug-in SDK1610.

The second AI plug-in SDK1630may include software development tool collections used to provide a voice recognition service through the second AI agent server633.

The second AI agent server1630may receive an intent fulfillment result corresponding to the voice command from the second AI agent server633.

The voice agent103may output the intent fulfillment result received from the second AI plug-in SDK1630.

The dynamic AI loader1650may read the AI table1650from the SDP server1600.

The dynamic AI loader1650is connected to the SDP server1600to receive the AI table1400, when the display device100is powered on.

The dynamic AI loader1650may output a menu UI by using the received AI table1400. The menu UI may be a language menu1500illustrated inFIG.15.

According to an embodiment of the present disclosure, the above-described method is able to be implemented in the form of a computer readable code. The computer readable medium includes, for example, a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, and an optical data storage device, and it is also implemented in the form of a carrier wave (e.g., data transmission through the Internet).

The display device described above is not limited to the configuration and the method according to embodiments described above, and the entire portion or the portion of embodiments are selectively combined and configured such that the embodiments may be variously modified.