KR101685340B1 - Mobile terminal and operation method thereof - Google Patents

Abstract

The present invention relates to a portable terminal and an operation method thereof. An operation method of the portable terminal displays a preview image of a camera, recognizes a voice signal, and displays a text corresponding to a voice signal in an area adjacent to a portrait image of the preview image. According to the present invention, since not only the information about the person displayed on the preview image of the camera but also the voice contents of the person are provided as text, the user can more clearly grasp the person and the conversation contents.

Description

The present invention relates to a mobile terminal and an operation method thereof,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a mobile terminal and an operation method thereof, and more particularly, to a mobile terminal that implements an augmented reality and an operation method thereof.

A portable terminal is a portable device having one or more functions capable of carrying out voice and video communication, capable of inputting and outputting information, and storing data, while being portable. As the functions of the portable terminal have diversified, they have complicated functions such as photographing and photographing of a movie, playback of a music file or a video file, reception of a game, reception of broadcasting, wireless Internet, etc., and a comprehensive multimedia device .

Recently, mobile terminals have been widely used for shooting moving images or still images through cameras. In addition, a technology for providing a real-world image and additional information, particularly, information related to the real-world image, which are displayed through a camera, has been developed in the portable terminal. This technique is called augmented reality technology.

Augmented Reality is a reality in which real world images and information are mixed with additional information inserted into the real environment. Due to the augmented reality as described above, the user can acquire information related to the real world more easily.

In such a situation, a variety of methods are being sought to provide users with information more effectively through augmented reality.

Accordingly, it is an object of the present invention to provide a portable terminal that converts information about a person and voice contents of a person displayed in a preview image of a camera into text, and provides an operation method thereof.

According to another aspect of the present invention, there is provided a method of operating a mobile terminal, the method comprising: displaying a preview image of a camera; Recognizing a voice signal; And displaying a text corresponding to the voice signal in an area adjacent to the character image that generated the voice signal in the preview image.

According to another aspect of the present invention, there is provided a portable terminal comprising: a camera; MIC; A display unit; And a display unit for displaying a preview image of the camera on the display unit and recognizing a voice signal inputted through the microphone to display a text corresponding to the voice signal in an area adjacent to the character image of the preview image, And a control unit for displaying the image.

According to the present invention, since not only the information about the person displayed on the preview image of the camera but also the voice contents of the person are provided as text, the user can more clearly grasp the person and the conversation contents.

1 is a block diagram of a portable terminal according to an exemplary embodiment of the present invention,
FIG. 2 is a perspective view of a mobile terminal according to an exemplary embodiment of the present invention,
FIG. 3 is a rear perspective view of the portable terminal shown in FIG. 2,
4 is a flowchart illustrating an operation method of the portable terminal according to the first embodiment of the present invention.
FIG. 5 is a flowchart illustrating an operation method of a mobile terminal according to a second embodiment of the present invention;
6 is a block diagram illustrating a method of providing person information according to an exemplary embodiment of the present invention.
7 is a block diagram illustrating a method of providing text corresponding to a speech signal according to an embodiment of the present invention;
8 is a block diagram illustrating a method of reproducing images and text stored in the augmented reality mode according to an embodiment of the present invention,
9 is a reference diagram for explaining a method of reproducing text stored in the augmented reality mode according to an embodiment of the present invention.

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

The portable terminal described in this specification includes a mobile phone, a smart phone, a notebook computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), and navigation. In addition, suffixes "module" and " part "for the components used in the following description are given merely for convenience of description, and do not give special significance or role in themselves. Accordingly, the terms "module" and "part" may be used interchangeably.

FIG. 1 is a block diagram of a portable terminal according to an exemplary embodiment of the present invention. Referring to FIG. Referring to FIG. 1, a mobile terminal according to an embodiment of the present invention will be described in terms of components according to functions.

1, the portable terminal 100 includes a wireless communication unit 110, an A / V input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, A memory 160, an interface unit 170, a control unit 180, and a power supply unit 190. When such components are implemented in practical applications, two or more components may be combined into one component, or one component may be divided into two or more components as necessary.

The wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 113, a wireless Internet module 115, a short distance communication module 117, and a GPS module 119.

The broadcast receiving module 111 receives at least one of a broadcast signal and broadcast related information from an external broadcast management server through a broadcast channel. At this time, the broadcast channel may include a satellite channel, a terrestrial channel, and the like. The broadcast management server may refer to a server for generating and transmitting at least one of a broadcast signal and broadcast related information and a server for receiving at least one of the generated broadcast signal and broadcast related information and transmitting the broadcast signal to the terminal.

The broadcast-related information may mean information related to a broadcast channel, a broadcast program, or a broadcast service provider. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and a broadcast signal in which a data broadcast signal is combined with a TV broadcast signal or a radio broadcast signal. The broadcast-related information can also be provided through a mobile communication network, in which case it can be received by the mobile communication module 113. Broadcast-related information can exist in various forms.

The broadcast receiving module 111 receives broadcast signals using various broadcast systems and can receive digital broadcast signals using the digital broadcast system. In addition, the broadcast receiving module 111 may be configured to be suitable for all broadcasting systems that provide broadcasting signals, as well as the digital broadcasting system. The broadcast signal and the broadcast-related information received through the broadcast receiving module 111 may be stored in the memory 160.

The mobile communication module 113 transmits and receives a radio signal to at least one of a base station, an external terminal, and a server on a mobile communication network. Here, the wireless signal may include various types of data according to a voice call signal, a video call signal, or a text / multimedia message transmission / reception.

The wireless Internet module 115 refers to a module for wireless Internet access, and the wireless Internet module 115 can be embedded in the mobile terminal 100 or externally. WLAN (Wi-Fi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) and the like can be used as wireless Internet technologies.

The short-range communication module 117 refers to a module for short-range communication. Bluetooth, radio frequency identification (RFID), infrared data association (IrDA), ultra wideband (UWB), ZigBee, and the like can be used as the short distance communication technology.

A GPS (Global Position System) module 119 receives position information from a plurality of GPS satellites.

The A / V (Audio / Video) input unit 120 is for inputting an audio signal or a video signal, and may include a camera 121 and a microphone 123. The camera 121 processes image frames such as still images or moving images obtained by the image sensor in the video communication mode or the photographing mode. Then, the processed image frame can be displayed on the display unit 151. [

The image frame processed by the camera 121 may be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. [ The camera 121 may be equipped with two or more cameras according to the configuration of the terminal.

The microphone 123 receives an external sound signal by a microphone in a communication mode, a recording mode, a voice recognition mode, or the like, and processes it as electrical voice data. The processed voice data can be converted into a form that can be transmitted to the mobile communication base station through the mobile communication module 113 and output when the voice data is in the call mode. The microphone 123 may be a variety of noise reduction algorithms for eliminating noise generated in receiving an external sound signal.

The user input unit 130 generates key input data that the user inputs to control the operation of the terminal. The user input unit 130 may include a key pad, a dome switch, and a touch pad (static / static) capable of receiving commands or information by a push or touch operation of a user. The user input unit 130 may be a jog wheel for rotating the key, a jog type or a joystick, or a finger mouse. Particularly, when the touch pad has a mutual layer structure with the display unit 151 described later, it can be called a touch screen.

The sensing unit 140 senses the current state of the portable terminal 100 such as the open / close state of the portable terminal 100, the position of the portable terminal 100, Thereby generating a sensing signal. For example, when the portable terminal 100 is in the form of a slide phone, it is possible to sense whether the slide phone is opened or closed. In addition, a sensing function related to whether or not the power supply unit 190 is powered on, whether the interface unit 170 is coupled to an external device, and the like can be handled.

The sensing unit 140 may include a proximity sensor 141, a pressure sensor 143, a motion sensor 145, and the like. The proximity sensor 141 can detect the presence of an object approaching the portable terminal 100 or an object existing near the portable terminal 100 without mechanical contact. The proximity sensor 141 can detect a nearby object by using a change in the alternating magnetic field or a change in the static magnetic field, or a rate of change in capacitance. The proximity sensor 141 may be equipped with two or more sensors according to the configuration.

The pressure sensor 143 can detect whether the pressure is applied to the portable terminal 100, the magnitude of the pressure, and the like. The pressure sensor 143 may be installed at a portion where the pressure of the portable terminal 100 is required depending on the use environment. When the pressure sensor 143 is installed on the display unit 151, the touch input through the display unit 151 and the pressure applied by the touch input The pressure touch input can be identified. Also, the magnitude of the pressure applied to the display unit 151 at the time of the pressure touch input can be determined according to the signal output from the pressure sensor 143. [

The motion sensor 145 detects the position and movement of the portable terminal 100 using an acceleration sensor, a gyro sensor, or the like. An acceleration sensor that can be used for the motion sensor 145 is a device that converts an acceleration change in one direction into an electric signal and is widely used along with the development of MEMS (micro-electromechanical systems) technology. The acceleration sensor measures the acceleration of a small value built in the airbag system of an automobile and recognizes the minute motion of the human hand and measures the acceleration of a large value used as an input means such as a game There are various types. Acceleration sensors are usually constructed by mounting two or three axes in one package. Depending on the usage environment, only one axis of Z axis is required. Therefore, when the acceleration sensor in the X-axis direction or the Y-axis direction is used instead of the Z-axis direction for some reason, the acceleration sensor may be mounted on the main substrate by using a separate piece substrate.

The gyro sensor is a sensor for measuring the angular velocity, and it can sense the direction of rotation with respect to the reference direction.

The output unit 150 is for outputting an audio signal, a video signal, or an alarm signal. The output unit 150 may include a display unit 151, an audio output module 153, an alarm unit 155, and a haptic module 157.

The display unit 151 displays and outputs the information processed by the portable terminal 100. For example, when the portable terminal 100 is in the call mode, a UI (User Interface) or a GUI (Graphic User Interface) associated with a call is displayed. When the portable terminal 100 is in the video communication mode or the photographing mode, the photographed or received images can be displayed individually or simultaneously, and the UI and the GUI are displayed.

Meanwhile, as described above, when the display unit 151 and the touch pad have a mutual layer structure to constitute a touch screen, the display unit 151 may be an input device capable of inputting information by a user's touch in addition to the output device Can also be used.

If the display unit 151 is configured as a touch screen, it may include a touch screen panel, a touch screen panel controller, and the like. In this case, the touch screen panel is a transparent panel attached to the outside, and can be connected to the internal bus of the portable terminal 100. The touch screen panel keeps a watch on the contact result, and if there is a touch input, sends the corresponding signals to the touch screen panel controller. The touch screen panel controller processes the signals, and then transmits corresponding data to the controller 180 so that the controller 180 can determine whether the touch input has been made and which area of the touch screen has been touched.

The display unit 151 may be formed of an e-paper. Electronic paper (e-Paper) is a kind of reflective display, and has excellent visual characteristics such as high resolution, wide viewing angle and bright white background as conventional paper and ink. The electronic paper (e-paper) can be implemented on any substrate such as plastic, metal, paper, and the image is retained even after the power is shut off, and the battery life of the portable terminal 100 is long Can be maintained. As the electronic paper, a hemispherical twist ball filled with a telephone can be used, or an electrophoresis method and a microcapsule can be used.

In addition, the display unit 151 may be a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, a three- (3D display). There may be two or more display units 151 according to the implementation mode of the portable terminal 100. [ For example, the portable terminal 100 may include an external display unit (not shown) and an internal display unit (not shown) at the same time.

The audio output module 153 outputs audio data received from the wireless communication unit 110 or stored in the memory 160 in a call signal reception mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, The sound output module 153 outputs sound signals related to functions performed in the portable terminal 100, for example, a call signal reception tone, a message reception tone, and the like. The sound output module 153 may include a speaker, a buzzer, and the like.

The alarm unit 155 outputs a signal for notifying the occurrence of an event of the portable terminal 100. Examples of events occurring in the portable terminal 100 include call signal reception, message reception, and key signal input. The alarm unit 155 outputs a signal for notifying the occurrence of an event in a form other than an audio signal or a video signal. For example, it is possible to output a signal in a vibration mode. The alarm unit 155 can output a signal to notify when a call signal is received or a message is received. Also. When the key signal is inputted, the alarm unit 155 can output a signal as a feedback to the key signal input. The user can recognize the occurrence of an event through the signal output by the alarm unit 155. A signal for notifying the occurrence of an event in the portable terminal 100 may also be output through the display unit 151 or the sound output module 153. [

The haptic module 157 generates various tactile effects that the user can feel. A typical example of the haptic effect generated by the haptic module 157 is a vibration effect. When the haptic module 157 generates vibration with a haptic effect, the intensity and pattern of the vibration generated by the haptic module 157 can be converted, and the different vibrations can be synthesized and output or sequentially output.

In addition to the vibration, the haptic module 157 may be provided with a function of stimulating by a pin arrangement vertically moving with respect to the contact skin surface, an effect of stimulating air through the injection or suction force of the air through the injection port or the suction port, The effect of stimulation through contact of an electrode (eletrode), the effect of stimulation by electrostatic force, and the effect of reproducing a cold sensation using a device capable of endothermic or exothermic can be generated. The haptic module 157 can be implemented not only to transmit the tactile effect through direct contact but also to feel the tactile effect through the muscular sense of the user's finger or arm. The haptic module 157 may include two or more haptic modules 157 according to the configuration of the portable terminal 100.

The memory 160 may store a program for processing and controlling the control unit 180 and may store a function for temporarily storing input or output data (e.g., a phone book, a message, a still image, .

The memory 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), a RAM , And a ROM. ≪ / RTI > In addition, the portable terminal 100 may operate a web storage for storing the memory 150 on the Internet.

The interface unit 170 serves as an interface with all external devices connected to the portable terminal 100. Examples of the external device connected to the portable terminal 100 include a wired / wireless headset, an external charger, a wired / wireless data port, a memory card, a SIM (Subscriber Identification Module) card, a UIM An audio input / output (I / O) terminal, a video I / O (input / output) terminal, and an earphone. The interface unit 170 receives data from the external device or receives power from the external device and transmits the data to each component in the portable terminal 100 so that data in the portable terminal 100 can be transmitted to the external device .

The interface unit 170 is a path through which power from the cradle connected when the portable terminal 100 is connected to the external cradle is supplied to the portable terminal 100 or various command signals inputted from the cradle by the user are carried And may be a passage to be transmitted to the terminal 100.

The controller 180 typically controls the operation of the respective units to control the overall operation of the mobile terminal 100. For example, voice communication, data communication, video communication, and the like. In addition, the control unit 180 may include a multimedia playback module 181 for multimedia playback. The multimedia playback module 181 may be configured in hardware in the controller 180 or separately from software in the controller 180. [

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power necessary for operation of the respective components.

The mobile terminal 100 having such a configuration can be configured to be operable in a communication system capable of transmitting data through a frame or a packet, including a wired / wireless communication system and a satellite-based communication system. have.

The portable terminal according to the present invention has been described in terms of components according to functions. Hereinafter, with reference to FIG. 2 and FIG. 3, the portable terminal related to the present invention will be described in more detail from the viewpoint of the components according to the external form. Hereinafter, for convenience of explanation, a bar-type portable terminal having a front touch screen among various types of portable terminals such as a folder type, a bar type, a swing type, a slider type and the like will be described as an example. However, the present invention is not limited to a bar-type portable terminal, but can be applied to all types of portable terminals including the above-mentioned type.

2 is a perspective view of a portable terminal according to an embodiment of the present invention. Referring to FIG. 2, the case of the present portable terminal 100 is formed by a front case 100A-1 and a rear case 100A-2. Various electronic components are incorporated in the space formed by the front case 100A-1 and the rear case 100A-2. At least one intermediate case may be additionally disposed between the front case 100A-1 and the rear case 100A-2. Such cases may be formed by injection molding of a synthetic resin, or may be formed of a metal material, for example, a metal material such as stainless steel (STS) or titanium (Ti).

The display unit 151, the first sound output module 153a, the first camera 121a, and the first user input unit 130a may be disposed in the main body, specifically, the first front case 100A-1. The second user input unit 130b, the third user input unit 130, and the microphone 123 may be disposed on the side of the rear case 100A-2.

The display unit 151 includes a liquid crystal display (LCD), an OLED (Organic Light Emitting Diodes), and the like that visually express information. The display unit 151 may be configured to operate as a touch screen by inputting information by a user's touch by superimposing the touch pad on the display unit 151 in a layer structure.

The first acoustic output module 153a may be implemented in the form of a receiver or a speaker. The first camera 121a may be adapted to photograph an image or a moving image of a user or the like. The microphone 123 may be implemented in a form suitable for receiving voice, sound, etc. of the user.

The first to third user input units 130a, 130b, and 130c may be collectively referred to as a user input unit 130 and may be employed in any manner as long as the user operates in a tactile manner with a tactile impression.

For example, the user input unit 130 may be embodied as a dome switch or a touch pad capable of receiving a command or information by a push or touch operation of a user, or may be a wheel, a jog type, a joystick, Or the like. In terms of functions, the first user input unit 130a is for inputting a command such as start, end, and call, and the second user input unit 130b is for inputting an operation mode selection or the like. Also, the third user input unit 130c may operate as a hot-key for activating a special function in the portable terminal 100. [

When the user's finger is close to the display unit 151, the proximity sensor 141 installed on the first body or the like senses it and outputs a proximity signal. At this time, it is possible to configure to output different proximity signals depending on the distance that the user's finger is located. In general, a distance at which a detection object approaches a proximity sensor and a proximity signal is output is referred to as a detection distance. When a plurality of proximity sensors having different detection distances are used in this way and the proximity signals output from the respective proximity sensors are compared, Can be known.

It is also possible to arrange a plurality of proximity sensors having different detection areas to determine whether proximity signals are output from which proximity sensors among the proximity sensors and to determine which area of the display unit 151 the proximity object approaches, Whether or not the display unit 151 is moving close to the display unit 151, and the like. Accordingly, the control unit 180 may select a touch key corresponding to a position close to the user's finger or the like, and control to output a corresponding vibration signal.

When the user tilts or shakes the portable terminal, the motion sensor 145 detects the movement of the portable terminal. The motion sensor 145 generates a signal corresponding to the motion of the portable terminal and outputs the signal to the controller 180. The control unit 180 detects information related to the motion, such as the direction, the angle, the speed, the intensity, and the current position of the portable terminal, from the signal generated by the motion sensor 145.

The controller 180 tracks the movement of the portable terminal through the information detected from the signal generated by the motion sensor 145. The information that can be detected from the signal generated by the gyro sensor may be different depending on the components constituting the motion sensor 145. [ The portable terminal is provided with a motion sensor 145 according to motion information of the portable terminal to be detected. At least one motion sensor 145 may be provided in the portable terminal. The control unit 180 may control the motion sensor 145 to operate only when a specific application is executed in response to information to be detected.

3 is a rear perspective view of the portable terminal shown in FIG. 3, the fourth user input unit 130d, the fifth user input unit 130d, and the interface unit 170 may be disposed on the side of the rear case 100A-2, and the rear case 100A-2 The second camera 121b may be further mounted on the rear surface of the second camera 121b.

The second camera 121b has a photographing direction substantially opposite to that of the first camera 121a, and may have pixels different from those of the first camera 121a. For example, the first camera 121a has low pixels so that it is easy to capture a face of a user in the case of a video call or the like and transmit the face to the other party. The second camera 121b photographs a general object and immediately transmits It is preferable to have a high pixel.

A mirror 125 and a flash 126 may be further disposed adjacent to the second camera 121b. The mirror 125 enables the user to illuminate the user's own face or the like when the user intends to take a picture of himself / herself (self-photographing) using the second camera 121b. The flash 126 illuminates the subject when the subject is photographed by the second camera 121b.

A second sound output module (not shown) may be further disposed in the rear case 100A-2. The second sound output module may implement the stereo function together with the first sound output module 153a, and may be used for talking in the speakerphone mode.

An antenna (not shown) for receiving broadcasting signals may be disposed on one side of the second rear case 100A-2 in addition to the antenna for communication. The antenna may be installed to be capable of being drawn out from the rear case 100A-2.

The interface unit 170 is a path for allowing the portable terminal 100 to exchange data with an external device. For example, the interface unit 170 may be at least one of a connection terminal for connecting to an earphone, a port for short-range communication, or power supply terminals for supplying power to the portable terminal 100, have. The interface unit 170 may be a card socket that accommodates an external card such as a SIM (subscriber identification module) or a UIM (user identity module), a memory card for information storage, and the like.

A power supply unit 190 for supplying power to the portable terminal is mounted on the rear case 100A-2. The power supply unit 190 may be a rechargeable battery, for example, and may be detachably coupled to the rear case 100A-2 for charging or the like.

In the above description, the second camera 121b and the like are disposed in the rear case 100A-2, but the present invention is not limited thereto. Also, the second camera 12b may be separately provided, but the first camera 121a may be configured to be rotatable so that the first camera 121a can be photographed up to the photographing direction of the second camera 121b.

4 is a flowchart illustrating an operation method of the portable terminal according to the first embodiment of the present invention.

Referring to FIG. 4, a preview image of the camera 121 is displayed on the display unit 151 of the portable terminal (S410). Specifically, when a user selects a photographing mode through a manual or the like of the portable terminal, a preview image (hereinafter, referred to as a 'preview image of a camera' or a 'preview image') showing a preview of the image to be photographed through the camera 121 ) Is displayed.

In response to the user command, the controller 180 sets the mode of the portable terminal to the portrait mode (S420). The user can input a command to change the mode of the portable terminal from the photographing mode to the portrait mode when the user wishes to implement an augmented reality providing additional information around the person in the preview image while watching the preview image. The above-described person mode may be implemented by selecting a person icon displayed on the display unit 151. When the mode is set to the person mode, the portable terminal can provide a service related to the person.

In the person mode, the controller 180 detects the face image from the preview image (S430). There are statistical methods and statistical learning methods for facial image detection. The statistical method is a method of detecting facial images by comparing the data obtained from the image itself and the statistical learning method is a method in which facial images are obtained through a learning algorithm using data obtained through statistical methods, Is detected. The controller 180 detects the face image from the preview image using at least one of the face image detection methods.

Meanwhile, the controller 180 determines whether there is character information on the detected face image (S440). Specifically, the control unit 180 extracts feature points such as eyes, nose, and mouth from the detected face images. The similarity degree between the face image and the face of the person image stored in the person database is calculated using the extracted feature points, and it is determined whether the person in the preview image is included in the person database based on the calculated similarity value.

The person database may be stored in the memory 160 of the portable terminal. However, when the person database is not stored in the memory 160 of the portable terminal, the control unit 180 may access the external device of the person database through the wireless communication unit and use the person database of the external device. It is preferable that the face database and the character information are stored in a matching manner in the person database.

Here, the person information is information characterizing the person, and preferably includes the name of a person, a telephone number, SNS (Social Network Site) site information, and the like. Particularly, a phonebook database built in a portable terminal can be utilized as a character database.

If there is person information corresponding to the face image (S440-Y), the control unit 180 displays the person image on one area of the display unit 151 (S450). In displaying the person information, it is preferable to display the person information in an area adjacent to the face image, and a notification indicator indicating that the person information of a specific person is displayed can also be displayed.

The present invention also provides a service for displaying a voice signal of a person included in a preview image as text as well as pre-stored person information.

5 is a flowchart illustrating an operation method of the portable terminal according to the second embodiment of the present invention.

Referring to FIG. 5, a preview image of the camera 121 is displayed on the touch screen of the portable terminal (S510). Specifically, when the user selects a photographing mode through a manual or the like of the portable terminal, the touch screen displays a preview image (hereinafter referred to as 'preview image of the camera 121' or 'preview image' Quot;) is displayed.

On the other hand, the microphone 122 receives the voice signal (S520). The control unit 180 removes the noise signal from the received voice signal, calculates the size and direction of the voice signal, and determines the location information of the sound source that generated the voice signal in operation S530. As a method for determining the position of the sound source, there are a method of detecting the position of the sound source by measuring the intensity of the signal and the path loss according to the distance, a method of detecting the position of the sound source by using the arrival angle (AOA) A method of using a spatial spectrum, and a method of locating a sound source using a sound source transmission time. The controller 180 determines the position of the sound source using at least one of the methods for tracking the position of the sound source.

Then, the control unit 180 determines the direction information of the camera 121 (S550). Generally, since the camera 121 is integrated with the portable terminal, the controller 180 can acquire the direction information of the camera 121 from the change of the location information of the portable terminal and the change of the movement. Or directional sensors (not shown) attached directly to the camera 121. [

It is determined whether the sound source is displayed on the preview image based on the direction information of the obtained camera 121 and the location information of the sound source (S550). When the position of the sound source is within the viewing angle of the camera 121, the control unit 180 determines that the sound source is displayed on the preview image.

If it is determined that the sound source is displayed on the preview image (S550-Y), the control unit 180 converts the audio signal into text (S560). The text database stores the code of the corresponding text for each frequency of the voice signal. Accordingly, the control unit 180 analyzes the frequency of the received voice signal, and acquires the text code corresponding to the analyzed frequency using the text database, thereby converting the voice signal into text.

Meanwhile, the text database may be stored in the memory 160 of the portable terminal, or may be stored in an external device. If the text database is stored in an external device, the control unit 180 may analyze the voice signal and transmit the analyzed frequency to an external device and request a corresponding text code.

In addition, the text database may store the frequency band of the voice signal of the first language and the test code of the second language corresponding thereto. In this case, the language of the received voice signal and the language of the converted text may be different from each other. That is, the voice signal can be converted into text translated into another language. In addition, the text database may have text codes of the first language and text codes of the second language matched with each other. Thus, the control unit 180 may convert the voice signal of the first language into text of the first language using the text database and convert the text of the first language into text of the second language using the text database.

Then, the control unit 180 displays the converted text in an area adjacent to the area where the sound source is displayed (S570). The control unit 180 can estimate the area where the sound source is displayed in the preview image based on the location information of the sound source and the direction information of the camera 121. [ Since the sound source is a person, the controller 180 extracts the face image from the preview image, estimates the area in which the sound source is displayed based on the position information of the face image and the position information of the sound source, The area can be estimated. Then, the control unit 180 displays the text in an area adjacent to the area where the sound source is displayed.

Meanwhile, it is determined whether a video storage command is input (S580). When an image storage command is inputted (S580-Y), the controller 180 stores the text together with the preview image (S590). In the preview image and text storage box, the preview image and text displayed on the display unit 151 can be captured as an image and stored. In addition, the control unit 180 may match the preview image and the text based on time, and separately store the matched preview image and the text. The storage capacity of the memory 160 can be minimized by storing the preview image only when the preview image is changed.

As described above, the portable terminal can provide more augmented reality services by providing not only the person information about the person displayed on the preview image but also the voice signal of the person displayed on the preview image as text.

In the present embodiment, if there is a user's save instruction, the text corresponding to the preview image and the voice signal is stored, but the present invention is not limited thereto. If the text is displayed on the display unit 151, the preview image and text may be automatically stored without a user command.

6 is a reference diagram illustrating a method of providing person information according to an embodiment of the present invention.

6A, menu icons may be displayed on the display unit 151 together with the preview image 610 of the camera 121 in the photographing mode. When the user selects the 'person' icon 612 to convert the mode of the portable terminal into the person mode, the controller 180 converts the mode of the portable terminal to the person mode. Then, the face image is extracted from the preview image, and it is determined whether or not there is person information matching the extracted face image in the person database. When the person information is present, the control unit 180 reads the person information from the person database and displays the person information 620 in an area adjacent to the area where the face image is displayed, as shown in Fig. 6 (b) have.

7 is a reference diagram illustrating a method of providing text corresponding to a speech signal according to an embodiment of the present invention.

7 (a), a preview image 710 of the camera 121 is displayed on the display unit 151. As shown in FIG. When the first sound signal is received through the microphone 122, the controller 180 analyzes the first sound signal and determines the position information of the first sound source 720 that generated the first sound signal. If it is determined that the first sound source 720 is displayed on the preview image from the position information of the first sound source 720 and the direction information of the camera 121, the controller 180 converts the first sound signal into text. 7 (b), the converted text 730 can be displayed in an area adjacent to the area where the first sound source 720 is displayed. When a plurality of sound sources are displayed in the preview image, the controller 180 may additionally display an indicator indicating the sound source of the sound source. In Figure 7 (b), the indicators described above are shown in shape (740) in a display form that includes text. Also, when the second audio signal is received through the microphone 122, the controller 180 analyzes the second audio signal and determines the position information of the second sound source that generated the second audio signal. If it is determined that the second sound source 750 is displayed on the preview image from the position information of the second sound source 750 and the direction information of the camera 121, the controller 180 converts the second sound signal into text. 7 (c), the text 760 for the converted second audio signal can be displayed in an area adjacent to the area where the second sound source 750 is displayed.

The present embodiment has been described on the assumption that the first sound source of the first sound signal and the second sound source of the second sound signal are different from each other. However, the sound source of the second sound signal may be the same as the sound source of the first sound signal. In such a case, the control unit 180 ends the display of the text corresponding to the first sound signal, Text may be displayed or a text corresponding to the second voice signal may be displayed in an area adjacent to the area where the text corresponding to the first voice signal is displayed or superimposed on the text corresponding to the first voice signal.

In addition, the control unit 180 may display the text only while the voice signal is received, or may display the text until another text of the same sound source is displayed.

Although the display of the text information for the character information and the voice signal is separately described in the present embodiment, it is needless to say that the text information for the character information and the voice signal can be simultaneously displayed.

On the other hand, the preview image and text may be captured and stored as an image, and the preview image and text may be matched and stored based on time. Of course, the stored preview image and text can be reproduced by a reproduction command.

8 is a reference diagram for explaining a method of reproducing images and text stored in an augmented reality mode according to an embodiment of the present invention.

As shown in FIG. 8 (a), on the menu screen 810 for the augmented reality reproduction, the user can select a method for reproducing the stored augmented reality. In addition to the image photographed in the augmented reality mode, information related to the image is stored together. Therefore, the menu screen 810 includes items for playing back images and text together, items for playing back images, and items for playing back text have. The user selects the item 812 for playing the video and the text together and selects the confirmation key 814 from the items. 8B, the stored image 820 is displayed, and the texts 830, 840, and 850 are sequentially displayed in the order of the stored time. In Fig. 8 (b), the numbers displayed in the text indicate the stored time sequence.

9 is a reference diagram for explaining a method of reproducing text stored in the augmented reality mode according to an embodiment of the present invention.

9A, in the menu screen 910 for augmented reality reproduction, the user selects an item 912 for playing a text and selects an OK key 914. [ Then, as shown in FIG. 9 (b), the speech signal is generated in the stored time sequence 930, the character information 940 of the sound source generating the speech signal, and the text 950 corresponding to the speech signal, Is displayed. The contents of the screen may be transmitted to an external device as a message. When the message transmission icon 9610 as shown in FIG. 9 (b) is selected and the number of the external device to be transmitted is input, the screen contents are transmitted to the external device in the message format.

Meanwhile, the present invention can be implemented as a processor-readable code on a processor-readable recording medium such as an MSM (Mobile Station Modem). The processor-readable recording medium includes all kinds of recording apparatuses in which data that can be read by the processor is stored. Examples of the recording medium readable by the processor include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and may be implemented in the form of a carrier wave such as transmission over the Internet. In addition, the processor-readable recording medium may be distributed over network-connected computer systems so that code readable by the processor in a distributed fashion can be stored and executed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It should be understood that various modifications may be made by those skilled in the art without departing from the spirit and scope of the present invention.

110: wireless communication unit 120: A / V input unit
130: user input unit 140: sensing unit
150: output unit 151: display unit
160: memory 170: interface section
180:

Claims (10)

Claim 1 has been abandoned due to the setting registration fee. Displaying a preview image of the camera;
Recognizing a voice signal input through at least one microphone;
Displaying a text corresponding to the speech signal in an area adjacent to the character image generating the speech signal from the preview image;
Storing the preview image and the augmented reality image combined with the text; And
A first item for playing back the augmented reality image, a second item for playing back the shot image excluding the text among the augmented reality images, and a third item for playing back the text except for the shot image among the augmented reality images And providing a playback menu to the mobile terminal. Claim 2 has been abandoned due to the setting registration fee. The method according to claim 1,
And recognizing a person image included in the preview image. Claim 3 has been abandoned due to the setting registration fee. 3. The method of claim 2,
And displaying information related to the portrait image in an area adjacent to the portrait image of the preview image. Claim 4 has been abandoned due to the setting registration fee. The method according to claim 1,
Converting the speech into text in a first language;
Converting the text of the first language into a text of a second language,
Wherein the text is text of the second language. Claim 5 has been abandoned due to the setting registration fee. The method according to claim 1,
Further comprising calculating a size and a direction of the voice signal to determine location information of the voice source that generated the voice signal. Claim 6 has been abandoned due to the setting registration fee. The method according to claim 1,
And capturing and storing the preview image in which the text is displayed. camera;
MIC;
A display unit; And
A preview image of the camera is displayed on the display unit and a voice corresponding to the voice signal is displayed in an area adjacent to the portrait image of the preview image, And a controller for storing the preview image and the augmented reality image combined with the text in a memory,
The control unit may include a first item for reproducing the augmented reality image, a second item for playing back an imaged image excluding the text of the augmented reality image, a third item for reproducing a text of the augmented reality image, And a playback menu including the item. 8. The method of claim 7,
Wherein,
And recognizes a portrait image included in the preview image. 9. The method of claim 8,
Wherein,
And displays information related to the portrait image in an area adjacent to the portrait image of the preview image. 8. The method of claim 7,
Wherein the control unit calculates the size and direction of the voice signal and determines the location information of the voice source that generated the voice signal.

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