WO2018084383A1

WO2018084383A1 - Mobile terminal

Info

Publication number: WO2018084383A1
Application number: PCT/KR2017/001133
Authority: WO
Inventors: 전봉정; 장유준; 김성은; 설지이
Original assignee: 엘지전자 주식회사
Priority date: 2016-11-01
Filing date: 2017-02-02
Publication date: 2018-05-11
Also published as: KR20180047694A

Abstract

A mobile terminal according to one embodiment of the present invention may comprise: a touch screen; and a control unit which detects, on the basis of a capacitance value on the touch screen, whether the mobile terminal is underwater, changes an operation mode of the mobile terminal to enter an underwater mode when it is detected that the mobile terminal is underwater, and displays, on the touch screen, guide information for controlling the operation of the mobile terminal under the underwater mode.

Description

Mobile terminal

The present invention relates to a mobile terminal, and more particularly, to an invention in which the function of the mobile terminal can be effectively controlled when the mobile terminal is in the water.

Terminals may be divided into mobile / portable terminals and stationary terminals according to their mobility. The mobile terminal may be further classified into a handheld terminal and a vehicle mounted terminal according to whether a user can directly carry it.

The functions of mobile terminals are diversifying. For example, data and voice communication, taking a picture and video with a camera, recording a voice, playing a music file through a speaker system, and outputting an image or video to a display unit. Some terminals have an electronic game play function or a multimedia player function. In particular, recent mobile terminals may receive multicast signals that provide visual content such as broadcasting, video, and television programs.

As the terminal functions are diversified, for example, such a terminal is a multimedia player having a complex function such as taking a picture or a video, playing a music or video file, playing a game, or receiving a broadcast. Is being implemented.

Recently, a mobile terminal having a waterproof function has appeared to operate in the water.

However, when the mobile terminal is placed in the water, there is a problem that the touch input by the water and the touch input by the user's finger are not distinguished and the touch input is not properly recognized on the touch screen.

In addition, when photographing an object through the mobile terminal underwater, there is a problem that the preview image is blurred due to the flow of water and floating objects.

In addition, when photographing an object through the mobile terminal underwater, the blue-based color is emphasized, there is a problem that can not take a clear image.

It is an object of the present invention to solve the above and other problems.

An object of the present invention is to control the operation of a mobile terminal through a touch input distinguished from a touch event by water when the mobile terminal is in the water.

An object of the present invention is to provide guide information for guiding a specific user input to a user in order to control the function of the mobile terminal when the mobile terminal is in the water.

An object of the present invention is to improve visibility of a screen by inverting color of a captured image displayed on a touch screen when taking underwater photographs through a mobile terminal.

An object of the present invention is to provide a clearer preview image through a red filter when taking underwater photographs through a mobile terminal.

According to an embodiment of the present invention, the mobile terminal detects whether the mobile terminal is in the water based on the touch screen and the capacitance value on the touch screen, and when the mobile terminal is detected in the water, And a controller for entering the operation mode of the mobile terminal into the underwater mode and displaying guide information for controlling the operation of the mobile terminal under the underwater mode on the touch screen.

Further scope of the applicability of the present invention will become apparent from the following detailed description. However, various changes and modifications within the spirit and scope of the present invention can be clearly understood by those skilled in the art, and therefore, specific embodiments, such as the detailed description and the preferred embodiments of the present invention, should be understood as given by way of example only.

According to various embodiments of the present disclosure, even when the mobile terminal is in the water, the mobile terminal may be controlled without a complicated process through a user input distinguished from a touch event by water.

According to various embodiments of the present disclosure, when taking underwater photographs through a mobile terminal, the visibility of the screen may be improved by inverting the color of the photographed image displayed on the touch screen.

The present invention can provide a clearer preview image through a red filter when taking underwater photographs through a mobile terminal.

1A is a block diagram illustrating a mobile terminal related to the present invention.

1B and 1C are conceptual views of one example of a mobile terminal, viewed from different directions.

2 is a flowchart illustrating a method of operating a mobile terminal according to an embodiment of the present invention.

3 is a diagram illustrating capacitance variation when a touch input is present on a capacitive touch screen.

4A and 4B illustrate a distribution of capacitance values corresponding to predetermined areas of the touch screen when the mobile terminal is not in the water and capacitance values corresponding to predetermined areas of the touch screen when the mobile terminal is in the water. A diagram showing the distribution of.

5 to 7 illustrate examples in which a mobile terminal can be operated with a force touch input under an underwater mode according to an embodiment of the present invention.

8 to 10 are examples illustrating that a mobile terminal can be operated through a pen device under an underwater mode according to an embodiment of the present invention.

FIG. 11 illustrates an example in which a mobile terminal may be operated through a long touch input under an underwater mode according to an embodiment of the present disclosure.

12 is a diagram for explaining an example in which a mobile terminal recognizes a long touch input under an underwater mode according to one embodiment of the present invention.

13A to 13F illustrate an example of controlling an operation of the mobile terminal 100 according to a hand gesture input in the underwater mode of the mobile terminal according to an embodiment of the present invention.

14A and 14B illustrate an example of adjusting a depth of focus according to a type of gesture input according to an embodiment of the present invention.

FIG. 15 is a diagram illustrating an example of performing color inversion on an image acquired through a camera when the mobile terminal enters the underwater mode according to one embodiment of the present invention.

FIG. 16 is a diagram for explaining an example of providing a preview image of which a color level is adjusted by using a red filter when photographing underwater through a mobile terminal according to one embodiment of the present invention.

FIG. 17 is a diagram illustrating an example of automatically switching a focus of a camera when a mobile terminal is placed in a waterproof pack and underwater photographing is performed according to an embodiment of the present disclosure.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings, and the same or similar components are denoted by the same reference numerals regardless of the reference numerals, and redundant description thereof will be omitted. The suffixes "module" and "unit" for components used in the following description are given or used in consideration of ease of specification, and do not have distinct meanings or roles from each other. In addition, in describing the embodiments disclosed herein, when it is determined that the detailed description of the related known technology may obscure the gist of the embodiments disclosed herein, the detailed description thereof will be omitted. In addition, the accompanying drawings are intended to facilitate understanding of the embodiments disclosed herein, but are not limited to the technical spirit disclosed herein by the accompanying drawings, all changes included in the spirit and scope of the present invention. It should be understood to include equivalents and substitutes.

Terms including ordinal numbers such as first and second may be used to describe various components, but the components are not limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that there is no other component in between.

Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprises" or "having" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

The mobile terminal described herein includes a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant, a portable multimedia player, a navigation, a slate PC , Tablet PCs, ultrabooks, wearable devices, such as smartwatches, glass glasses, head mounted displays, and the like. have.

However, it will be readily apparent to those skilled in the art that the configuration according to the embodiments described herein may also be applied to fixed terminals such as digital TVs, desktop computers, digital signages, etc., except when applicable only to mobile terminals. will be.

1A to 1C, FIG. 1A is a block diagram illustrating a mobile terminal according to the present invention, and FIGS. 1B and 1C are conceptual views of one example of the mobile terminal, viewed from different directions.

The mobile terminal 100 includes a wireless communication unit 110, an input unit 120, a sensing unit 140, an output unit 150, an interface unit 160, a memory 170, a controller 180, and a power supply unit 190. ) May be included.

The components shown in FIG. 1A are not essential to implementing a mobile terminal, so a mobile terminal described herein may have more or fewer components than those listed above.

More specifically, the wireless communication unit 110 of the components, between the mobile terminal 100 and the wireless communication system, between the mobile terminal 100 and another mobile terminal 100, or the mobile terminal 100 and the external server It may include one or more modules that enable wireless communication therebetween. In addition, the wireless communication unit 110 may include one or more modules for connecting the mobile terminal 100 to one or more networks.

The wireless communication unit 110 may include at least one of the broadcast receiving module 111, the mobile communication module 112, the wireless internet module 113, the short range communication module 114, and the location information module 115. .

The input unit 120 may include a camera 121 or an image input unit for inputting an image signal, a microphone 122 for inputting an audio signal, an audio input unit, or a user input unit 123 for receiving information from a user. , Touch keys, mechanical keys, and the like. The voice data or the image data collected by the input unit 120 may be analyzed and processed as a control command of the user.

The sensing unit 140 may include one or more sensors for sensing at least one of information in the mobile terminal, surrounding environment information surrounding the mobile terminal, and user information.

For example, the sensing unit 140 may include a proximity sensor 141, an illumination sensor 142, an illumination sensor, a touch sensor, an acceleration sensor, a magnetic sensor, and gravity. G-sensor, Gyroscope Sensor, Motion Sensor, RGB Sensor, Infrared Sensor, Infrared Sensor, Finger Scan Sensor, Ultrasonic Sensor Optical sensors (e.g. cameras 121), microphones (see 122), battery gauges, environmental sensors (e.g. barometers, hygrometers, thermometers, radiation detection sensors, Thermal sensors, gas sensors, etc.), chemical sensors (eg, electronic noses, healthcare sensors, biometric sensors, etc.). Meanwhile, the mobile terminal disclosed herein may use a combination of information sensed by at least two or more of these sensors.

The output unit 150 is used to generate an output related to sight, hearing, or tactile sense, and includes at least one of a display unit 151, an audio output unit 152, a hap tip module 153, and an optical output unit 154. can do. The display unit 151 forms a layer structure with or is integrally formed with the touch sensor, thereby implementing a touch screen. The touch screen may function as a user input unit 123 that provides an input interface between the mobile terminal 100 and the user, and may also provide an output interface between the mobile terminal 100 and the user.

The interface unit 160 serves as a path to various types of external devices connected to the mobile terminal 100. The interface unit 160 connects a device equipped with a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, and an identification module. It may include at least one of a port, an audio input / output (I / O) port, a video input / output (I / O) port, and an earphone port. In the mobile terminal 100, in response to an external device being connected to the interface unit 160, appropriate control associated with the connected external device may be performed.

In addition, the memory 170 stores data supporting various functions of the mobile terminal 100. The memory 170 may store a plurality of application programs or applications driven in the mobile terminal 100, data for operating the mobile terminal 100, and instructions. At least some of these applications may be downloaded from an external server via wireless communication. In addition, at least some of these application programs may exist on the mobile terminal 100 from the time of shipment for basic functions of the mobile terminal 100 (for example, a call forwarding, a calling function, a message receiving, and a calling function). The application program may be stored in the memory 170 and installed on the mobile terminal 100 to be driven by the controller 180 to perform an operation (or function) of the mobile terminal.

In addition to the operation related to the application program, the controller 180 typically controls the overall operation of the mobile terminal 100. The controller 180 may provide or process information or a function appropriate to a user by processing signals, data, information, and the like, which are input or output through the above-described components, or by driving an application program stored in the memory 170.

In addition, the controller 180 may control at least some of the components described with reference to FIG. 1A in order to drive an application program stored in the memory 170. In addition, the controller 180 may operate by combining at least two or more of the components included in the mobile terminal 100 to drive the application program.

The power supply unit 190 receives power from an external power source and an internal power source under the control of the controller 180 to supply power to each component included in the mobile terminal 100. The power supply unit 190 includes a battery, which may be a built-in battery or a replaceable battery.

Hereinafter, the components listed above will be described in detail with reference to FIG. 1A before looking at various embodiments implemented through the mobile terminal 100 described above.

First, referring to the wireless communication unit 110, the broadcast receiving module 111 of the wireless communication unit 110 receives a broadcast signal and / or broadcast related information from an external broadcast management server through a broadcast channel. The broadcast channel may include a satellite channel and a terrestrial channel. Two or more broadcast receiving modules may be provided to the mobile terminal 100 for simultaneous broadcast reception or switching of broadcast channels for at least two broadcast channels.

The broadcast management server may mean a server that generates and transmits a broadcast signal and / or broadcast related information or a server that receives a previously generated broadcast signal and / or broadcast related information and transmits the same to a terminal. The broadcast signal may include not only a TV broadcast signal, a radio broadcast signal, and a data broadcast signal, but also a broadcast signal having a data broadcast signal combined with a TV broadcast signal or a radio broadcast signal.

The broadcast signal may be encoded according to at least one of technical standards (or broadcast methods, for example, ISO, IEC, DVB, ATSC, etc.) for transmitting and receiving digital broadcast signals, and the broadcast receiving module 111 may The digital broadcast signal may be received by using a method suitable for a technical standard set by technical standards.

The broadcast associated information may mean information related to a broadcast channel, a broadcast program, or a broadcast service provider. The broadcast related information may also be provided through a mobile communication network. In this case, it may be received by the mobile communication module 112.

The broadcast related information may exist in various forms such as an electronic program guide (EPG) of digital multimedia broadcasting (DMB) or an electronic service guide (ESG) of digital video broadcast-handheld (DVB-H). The broadcast signal and / or broadcast related information received through the broadcast receiving module 111 may be stored in the memory 160.

The mobile communication module 112 may include technical standards or communication schemes (eg, Global System for Mobile communication (GSM), Code Division Multi Access (CDMA), Code Division Multi Access 2000 (CDMA2000), and EV). Enhanced Voice-Data Optimized or Enhanced Voice-Data Only (DO), Wideband CDMA (WCDMA), High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE), LTE-A (Long Term Evolution-Advanced) and the like to transmit and receive a radio signal with at least one of a base station, an external terminal, a server on a mobile communication network.

The wireless signal may include various types of data according to transmission and reception of a voice call signal, a video call call signal, or a text / multimedia message.

The wireless internet module 113 refers to a module for wireless internet access and may be embedded or external to the mobile terminal 100. The wireless internet module 113 is configured to transmit and receive wireless signals in a communication network according to wireless internet technologies.

Examples of wireless Internet technologies include Wireless LAN (WLAN), Wireless-Fidelity (Wi-Fi), Wireless Fidelity (Wi-Fi) Direct, Digital Living Network Alliance (DLNA), Wireless Broadband (WiBro), and WiMAX (World). Interoperability for Microwave Access (HSDPA), High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE), Long Term Evolution-Advanced (LTE-A), and the like. 113) transmits and receives data according to at least one wireless Internet technology in a range including the Internet technologies not listed above.

In view of the fact that the wireless Internet access by WiBro, HSDPA, HSUPA, GSM, CDMA, WCDMA, LTE, LTE-A, etc. is made through a mobile communication network, the wireless Internet module 113 for performing a wireless Internet access through the mobile communication network 113 ) May be understood as a kind of mobile communication module 112.

The short range communication module 114 is for short range communication, and includes Bluetooth ™, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and NFC. (Near Field Communication), at least one of Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, Wireless USB (Wireless Universal Serial Bus) technology can be used to support short-range communication. The short-range communication module 114 may be configured between a mobile terminal 100 and a wireless communication system, between the mobile terminal 100 and another mobile terminal 100, or through the wireless area networks. ) And a network in which the other mobile terminal 100 (or an external server) is located. The short range wireless communication network may be short range wireless personal area networks.

Here, the other mobile terminal 100 is a wearable device capable of exchanging (or interworking) data with the mobile terminal 100 according to the present invention (for example, smartwatch, smart glasses). (smart glass), head mounted display (HMD). The short range communication module 114 may sense (or recognize) a wearable device that can communicate with the mobile terminal 100, around the mobile terminal 100. Further, when the detected wearable device is a device that is authenticated to communicate with the mobile terminal 100 according to the present invention, the controller 180 may include at least a portion of data processed by the mobile terminal 100 in the short range communication module ( The transmission may be transmitted to the wearable device through 114. Therefore, the user of the wearable device may use data processed by the mobile terminal 100 through the wearable device. For example, according to this, when a call is received by the mobile terminal 100, the user performs a phone call through the wearable device or when a message is received by the mobile terminal 100, the received through the wearable device. It is possible to check the message.

The location information module 115 is a module for obtaining a location (or current location) of a mobile terminal, and a representative example thereof is a Global Positioning System (GPS) module or a Wireless Fidelity (WiFi) module. For example, when the mobile terminal utilizes the GPS module, the mobile terminal may acquire the location of the mobile terminal using a signal transmitted from a GPS satellite.

As another example, when the mobile terminal utilizes the Wi-Fi module, the mobile terminal may acquire the location of the mobile terminal based on information of the wireless access point (AP) transmitting or receiving the Wi-Fi module and the wireless signal. If necessary, the location information module 115 may perform any function of other modules of the wireless communication unit 110 to substitute or additionally obtain data regarding the location of the mobile terminal. The location information module 115 is a module used to obtain the location (or current location) of the mobile terminal, and is not limited to a module that directly calculates or obtains the location of the mobile terminal.

Next, the input unit 120 is for inputting image information (or signal), audio information (or signal), data, or information input from a user. For input of image information, the mobile terminal 100 is one. Alternatively, the plurality of cameras 121 may be provided. The camera 121 processes image frames such as still images or moving images obtained by the image sensor in the video call mode or the photographing mode. The processed image frame may be displayed on the display unit 151 or stored in the memory 170. On the other hand, the plurality of cameras 121 provided in the mobile terminal 100 may be arranged to form a matrix structure, and through the camera 121 forming a matrix structure in this way, the mobile terminal 100 may have various angles or focuses. The plurality of pieces of image information may be input. In addition, the plurality of cameras 121 may be arranged in a stereo structure to acquire a left image and a right image for implementing a stereoscopic image.

The microphone 122 processes external sound signals into electrical voice data. The processed voice data may be variously used according to a function (or an application program being executed) performed by the mobile terminal 100. Meanwhile, various noise reduction algorithms may be implemented in the microphone 122 to remove noise generated in the process of receiving an external sound signal.

The user input unit 123 is for receiving information from a user. When information is input through the user input unit 123, the controller 180 may control an operation of the mobile terminal 100 to correspond to the input information. . The user input unit 123 may be a mechanical input unit (or a mechanical key, for example, a button, a dome switch, or a jog wheel located at the front or rear or side of the mobile terminal 100). , Jog switch, etc.) and touch input means. As an example, the touch input means may include a virtual key, a soft key, or a visual key displayed on the touch screen through a software process, or a portion other than the touch screen. The virtual key or the visual key may be displayed on the touch screen while having various forms, for example, graphic or text. ), An icon, a video, or a combination thereof.

Meanwhile, the sensing unit 140 senses at least one of information in the mobile terminal, surrounding environment information surrounding the mobile terminal, and user information, and generates a sensing signal corresponding thereto. The controller 180 may control driving or operation of the mobile terminal 100 or perform data processing, function or operation related to an application program installed in the mobile terminal 100 based on the sensing signal. Representative sensors among various sensors that may be included in the sensing unit 140 will be described in more detail.

First, the proximity sensor 141 refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or an object present in the vicinity without using a mechanical contact by using an electromagnetic force or infrared rays. The proximity sensor 141 may be disposed in an inner region of the mobile terminal covered by the touch screen described above or near the touch screen.

Examples of the proximity sensor 141 include a transmission photoelectric sensor, a direct reflection photoelectric sensor, a mirror reflection photoelectric sensor, a high frequency oscillation proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor. In the case where the touch screen is capacitive, the proximity sensor 141 may be configured to detect the proximity of the object by the change of the electric field according to the proximity of the conductive object. In this case, the touch screen (or touch sensor) itself may be classified as a proximity sensor.

On the other hand, for convenience of explanation, an action of allowing the object to be recognized without being in contact with the touch screen so that the object is located on the touch screen is referred to as a "proximity touch", and the touch The act of actually touching an object on a screen is called a "contact touch." The position at which the object is in close proximity touch on the touch screen means a position where the object is perpendicular to the touch screen when the object is in close proximity touch. The proximity sensor 141 may detect a proximity touch and a proximity touch pattern (for example, a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, and a proximity touch movement state). have.

Meanwhile, the controller 180 processes data (or information) corresponding to the proximity touch operation and the proximity touch pattern detected through the proximity sensor 141 as described above, and further, provides visual information corresponding to the processed data. It can be output on the touch screen. Further, the controller 180 may control the mobile terminal 100 to process different operations or data (or information) according to whether the touch on the same point on the touch screen is a proximity touch or a touch touch. .

The touch sensor applies a touch (or touch input) applied to the touch screen (or the display unit 151) using at least one of various touch methods such as a resistive film method, a capacitive method, an infrared method, an ultrasonic method, and a magnetic field method. Detect.

As an example, the touch sensor may be configured to convert a change in pressure applied to a specific portion of the touch screen or capacitance generated at the specific portion into an electrical input signal. The touch sensor may be configured to detect a position, an area, a pressure at the touch, a capacitance at the touch, and the like, when the touch object applying the touch on the touch screen is touched on the touch sensor. Here, the touch object is an object applying a touch to the touch sensor and may be, for example, a finger, a touch pen or a stylus pen, a pointer, or the like.

As such, when there is a touch input to the touch sensor, the corresponding signal (s) is sent to the touch controller. The touch controller processes the signal (s) and then transmits the corresponding data to the controller 180. As a result, the controller 180 can know which area of the display unit 151 is touched. Here, the touch controller may be a separate component from the controller 180 or may be the controller 180 itself.

Meanwhile, the controller 180 may perform different control or perform the same control according to the type of touch object that touches the touch screen (or a touch key provided in addition to the touch screen). Whether to perform different control or the same control according to the type of touch object may be determined according to the operation state of the mobile terminal 100 or an application program being executed.

Meanwhile, the touch sensor and the proximity sensor described above may be independently or combined, and may be a short (or tap) touch, a long touch, a multi touch, a drag touch on a touch screen. ), Flick touch, pinch-in touch, pinch-out touch, swipe touch, hovering touch, etc. A touch can be sensed.

The ultrasonic sensor may recognize location information of a sensing object using ultrasonic waves. On the other hand, the controller 180 can calculate the position of the wave generation source through the information detected from the optical sensor and the plurality of ultrasonic sensors. The position of the wave source can be calculated using the property that the light is much faster than the ultrasonic wave, that is, the time that the light reaches the optical sensor is much faster than the time when the ultrasonic wave reaches the ultrasonic sensor. More specifically, the position of the wave generation source may be calculated using a time difference from the time when the ultrasonic wave reaches the light as the reference signal.

On the other hand, the camera 121, which has been described as the configuration of the input unit 120, includes at least one of a camera sensor (eg, CCD, CMOS, etc.), a photo sensor (or an image sensor), and a laser sensor.

The camera 121 and the laser sensor may be combined with each other to detect a touch of a sensing object with respect to a 3D stereoscopic image. The photo sensor may be stacked on the display element, which is configured to scan the movement of the sensing object in proximity to the touch screen. More specifically, the photo sensor mounts a photo diode and a transistor (TR) in a row / column and scans contents mounted on the photo sensor by using an electrical signal that varies according to the amount of light applied to the photo diode. That is, the photo sensor calculates coordinates of the sensing object according to the amount of light change, and thus, the position information of the sensing object can be obtained.

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, the display unit 151 may display execution screen information of an application program driven in the mobile terminal 100 or user interface (UI) and graphical user interface (GUI) information according to the execution screen information. .

In addition, the display unit 151 may be configured as a stereoscopic display unit for displaying a stereoscopic image. The stereoscopic display unit may be a three-dimensional display method such as a stereoscopic method (glasses method), an auto stereoscopic method (glasses-free method), a projection method (holographic method).

Generally, a 3D stereoscopic image is composed of a left image (left eye image) and a right image (right eye image). A top-down method in which the left and right images are arranged up and down in one frame according to the way in which the left and right images are merged into three-dimensional stereoscopic images. L-to-R (left-to-right, side by side) method to be arranged as a checker board method to arrange the pieces of the left and right images in the form of tiles, a column unit of the left and right images Or an interlaced method of alternately arranging rows, and a time sequential (frame by frame) method of alternately displaying left and right images by time.

In addition, the 3D thumbnail image may generate a left image thumbnail and a right image thumbnail from the left image and the right image of the original image frame, respectively, and may be generated as one image as they are combined. In general, a thumbnail refers to a reduced image or a reduced still image. The left image thumbnail and the right image thumbnail generated as described above are displayed with a left and right distance difference on the screen by a depth corresponding to the parallax of the left image and the right image, thereby representing a three-dimensional space.

The left image and the right image necessary for implementing the 3D stereoscopic image may be displayed on the stereoscopic display by the stereoscopic processing unit. The stereoscopic processing unit receives 3D images (images of the base view and images of the extended view) and sets left and right images therefrom, or receives 2D images and converts them into left and right images.

The sound output unit 152 may output audio data received from the wireless communication unit 110 or stored in the memory 170 in a call signal reception, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, and the like. The sound output unit 152 may also output a sound signal related to a function (for example, a call signal reception sound or a message reception sound) performed in the mobile terminal 100. The sound output unit 152 may include a receiver, a speaker, a buzzer, and the like.

The haptic module 153 generates various haptic effects that a user can feel. A representative example of the tactile effect generated by the haptic module 153 may be vibration. The intensity and pattern of vibration generated by the haptic module 153 may be controlled by the user's selection or the setting of the controller. For example, the haptic module 153 may output different synthesized vibrations or sequentially output them.

In addition to vibration, the haptic module 153 may be used to stimulate pins that vertically move with respect to the contact skin surface, jetting force or suction force of air through the jetting or suction port, grazing to the skin surface, contact of electrodes, and electrostatic force. Various tactile effects can be generated, such as effects by the endothermic and the reproduction of a sense of cold using the elements capable of endotherm or heat generation.

The haptic module 153 may not only deliver a tactile effect through direct contact, but also may allow a user to feel the tactile effect through a muscle sense such as a finger or an arm. Two or more haptic modules 153 may be provided according to a configuration aspect of the mobile terminal 100.

The light output unit 154 outputs a signal for notifying occurrence of an event by using light of a light source of the mobile terminal 100. Examples of events occurring in the mobile terminal 100 may be message reception, call signal reception, missed call, alarm, schedule notification, email reception, information reception through an application, and the like.

The signal output from the light output unit 154 is implemented as the mobile terminal emits light of a single color or a plurality of colors to the front or the rear. The signal output may be terminated by the mobile terminal detecting the user's event confirmation.

The interface unit 160 serves as a path to all external devices connected to the mobile terminal 100. The interface unit 160 receives data from an external device, receives power, transfers the power to each component inside the mobile terminal 100, or transmits data inside the mobile terminal 100 to an external device. For example, a port connecting a device equipped with a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, and an identification module. The port, audio input / output (I / O) port, video input / output (I / O) port, earphone port, etc. may be included in the interface unit 160.

On the other hand, the identification module is a chip that stores a variety of information for authenticating the usage rights of the mobile terminal 100, a user identification module (UIM), subscriber identity module (SIM), universal user authentication And a universal subscriber identity module (USIM). A device equipped with an identification module (hereinafter referred to as an 'identification device') may be manufactured in the form of a smart card. Therefore, the identification device may be connected to the terminal 100 through the interface unit 160.

In addition, when the mobile terminal 100 is connected to an external cradle, the interface unit 160 may be a passage for supplying power from the cradle to the mobile terminal 100 or may be input from the cradle by a user. Various command signals may be a passage through which the mobile terminal 100 is transmitted. Various command signals or power input from the cradle may operate as signals for recognizing that the mobile terminal 100 is correctly mounted on the cradle.

The memory 170 may store a program for the operation of the controller 180 and may temporarily store input / output data (for example, a phone book, a message, a still image, a video, etc.). The memory 170 may store data regarding vibration and sound of various patterns output when a touch input on the touch screen is performed.

The memory 170 may include a flash memory type, a hard disk type, a solid state disk type, an SSD type, a silicon disk drive type, and a multimedia card micro type. ), Card-type memory (e.g., SD or XD memory), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read It may include at least one type of storage medium of -only memory (PROM), programmable read-only memory (PROM), magnetic memory, magnetic disk and optical disk. The mobile terminal 100 may be operated in connection with a web storage that performs a storage function of the memory 170 on the Internet.

On the other hand, as described above, the controller 180 controls the operation related to the application program, and generally the overall operation of the mobile terminal 100. For example, if the state of the mobile terminal satisfies a set condition, the controller 180 may execute or release a lock state that restricts input of a user's control command to applications.

In addition, the controller 180 may perform control and processing related to voice call, data communication, video call, or the like, or may perform pattern recognition processing for recognizing handwriting input or drawing input performed on a touch screen as text and images, respectively. Can be. Furthermore, the controller 180 may control any one or a plurality of components described above in order to implement various embodiments described below on the mobile terminal 100 according to the present invention.

The power supply unit 190 receives an external power source and an internal power source under the control of the controller 180 to supply power for operation of each component. The power supply unit 190 includes a battery, and the battery may be a built-in battery configured to be rechargeable, and may be detachably coupled to the terminal body for charging.

In addition, the power supply unit 190 may be provided with a connection port, the connection port may be configured as an example of the interface 160 is electrically connected to the external charger for supplying power for charging the battery.

As another example, the power supply unit 190 may be configured to charge the battery in a wireless manner without using the connection port. In this case, the power supply unit 190 may use at least one of an inductive coupling based on a magnetic induction phenomenon or a magnetic resonance coupling based on an electromagnetic resonance phenomenon from an external wireless power transmitter. Power can be delivered.

Meanwhile, various embodiments of the present disclosure may be implemented in a recording medium readable by a computer or a similar device using, for example, software, hardware, or a combination thereof.

1B and 1C, the disclosed mobile terminal 100 includes a terminal body in a bar shape. However, the present invention is not limited thereto, and the present invention can be applied to various structures such as a watch type, a clip type, a glass type, or a folder type, a flip type, a slide type, a swing type, a swivel type, and two or more bodies which are coupled to be movable relative. . Although related to a particular type of mobile terminal, a description of a particular type of mobile terminal may generally apply to other types of mobile terminals.

Herein, the terminal body may be understood as a concept that refers to the mobile terminal 100 as at least one aggregate.

The mobile terminal 100 includes a case (eg, a frame, a housing, a cover, etc.) forming an external appearance. As shown, the mobile terminal 100 may include a front case 101 and a rear case 102. Various electronic components are disposed in the internal space formed by the combination of the front case 101 and the rear case 102. At least one middle case may be additionally disposed between the front case 101 and the rear case 102.

The display unit 151 may be disposed in front of the terminal body to output information. As shown, the window 151a of the display unit 151 may be mounted to the front case 101 to form a front surface of the terminal body together with the front case 101.

In some cases, an electronic component may be mounted on the rear case 102. Electronic components attachable to the rear case 102 include a removable battery, an identification module, a memory card, and the like. In this case, the rear cover 102 may be detachably coupled to the rear case 102 to cover the mounted electronic component. Therefore, when the rear cover 103 is separated from the rear case 102, the electronic components mounted on the rear case 102 are exposed to the outside.

As shown, when the rear cover 103 is coupled to the rear case 102, a portion of the side surface of the rear case 102 may be exposed. In some cases, the rear case 102 may be completely covered by the rear cover 103 during the coupling. On the other hand, the rear cover 103 may be provided with an opening for exposing the camera 121b or the sound output unit 152b to the outside.

The

cases

101, 102, and 103 may be formed by injecting a synthetic resin, or may be formed of a metal, for example, stainless steel (STS), aluminum (Al), titanium (Ti), or the like.

The mobile terminal 100 may be configured such that one case may provide the internal space, unlike the above example in which a plurality of cases provide an internal space for accommodating various electronic components. In this case, the mobile terminal 100 of the unibody that the synthetic resin or metal from the side to the rear may be implemented.

On the other hand, the mobile terminal 100 may be provided with a waterproof portion (not shown) to prevent water from seeping into the terminal body. For example, the waterproof portion is provided between the window 151a and the front case 101, between the front case 101 and the rear case 102 or between the rear case 102 and the rear cover 103, and a combination thereof. It may include a waterproof member for sealing the inner space.

The mobile terminal 100 includes a display unit 151, first and second

sound output units

152a and 152b, a proximity sensor 141, an illuminance sensor 142, an optical output unit 154, and first and second units. The

cameras

121a and 121b, the first and

second manipulation units

123a and 123b, the microphone 122, the interface unit 160, and the like may be provided.

Hereinafter, as illustrated in FIGS. 1B and 1C, the display unit 151, the first sound output unit 152a, the proximity sensor 141, the illuminance sensor 142, and the light output unit may be disposed on the front surface of the terminal body. 154, the first camera 121a and the first operation unit 123a are disposed, and the second operation unit 123b, the microphone 122, and the interface unit 160 are disposed on the side of the terminal body. The mobile terminal 100 in which the second sound output unit 152b and the second camera 121b are disposed on the rear surface of the mobile terminal 100 will be described as an example.

However, these configurations are not limited to this arrangement. These configurations may be excluded or replaced as needed or disposed on other sides. For example, the first manipulation unit 123a may not be provided on the front surface of the terminal body, and the second sound output unit 152b may be provided on the side of the terminal body instead of the rear surface of the terminal body.

The display unit 151 may include a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), and a flexible display (flexible display). display, a 3D display, or an e-ink display.

In addition, two or more display units 151 may exist according to an implementation form of the mobile terminal 100. In this case, the plurality of display units may be spaced apart or integrally disposed on one surface of the mobile terminal 100, or may be disposed on different surfaces.

The display unit 151 may include a touch sensor that senses a touch on the display unit 151 so as to receive a control command by a touch method. By using this, when a touch is made to the display unit 151, the touch sensor may sense the touch, and the controller 180 may generate a control command corresponding to the touch based on the touch sensor. The content input by the touch method may be letters or numbers or menu items that can be indicated or designated in various modes.

Meanwhile, the touch sensor is formed of a film having a touch pattern and disposed between the window 151a and the display (not shown) on the rear surface of the window 151a or directly patterned on the rear surface of the window 151a. It can also be Alternatively, the touch sensor may be integrally formed with the display. For example, the touch sensor may be disposed on a substrate of the display or provided in the display.

As such, the display unit 151 may form a touch screen together with the touch sensor. In this case, the touch screen may function as the user input unit 123 (see FIG. 1A). In some cases, the touch screen may replace at least some functions of the first manipulation unit 123a.

The first sound output unit 152a may be implemented as a receiver for transmitting a call sound to the user's ear, and the second sound output unit 152b may include a loud speaker for outputting various alarm sounds or multimedia reproduction sounds. It can be implemented in the form of).

A sound hole for emitting sound generated from the first sound output unit 152a may be formed in the window 151a of the display unit 151. However, the present invention is not limited thereto, and the sound may be configured to be emitted along an assembly gap between the structures (for example, a gap between the window 151a and the front case 101). In this case, an externally formed hole may be invisible or hidden for sound output, thereby simplifying the appearance of the mobile terminal 100.

The light output unit 154 is configured to output light for notifying when an event occurs. Examples of the event may include message reception, call signal reception, missed call, alarm, schedule notification, email reception, and information reception through an application. When the user's event confirmation is detected, the controller 180 may control the light output unit 154 to end the light output.

The first camera 121a processes an image frame of a still image or a moving image obtained by the image sensor in a shooting mode or a video call mode. The processed image frame may be displayed on the display unit 151 and stored in the memory 170.

The first and

second manipulation units

123a and 123b may be collectively referred to as a manipulating portion as an example of the user input unit 123 operated to receive a command for controlling the operation of the mobile terminal 100. have. The first and

second manipulation units

123a and 123b may be adopted in any manner as long as the user is operating in a tactile manner such as touch, push, and scroll. In addition, the first and

second manipulation units

123a and 123b may be employed in such a manner that the first and

second manipulation units

123a and 123b are operated without a tactile feeling by the user through proximity touch, hovering touch, or the like.

In the drawing, the first operation unit 123a is illustrated as being a touch key, but the present invention is not limited thereto. For example, the first manipulation unit 123a may be a mechanical key or a combination of a touch key and a push key.

The contents input by the first and

second manipulation units

123a and 123b may be variously set. For example, the first operation unit 123a receives a command such as a menu, a home key, a cancellation, a search, and the like, and the second operation unit 123b is output from the first or second

sound output units

152a and 152b. The user may receive a command such as adjusting the volume of the sound and switching to the touch recognition mode of the display unit 151.

Meanwhile, as another example of the user input unit 123, a rear input unit (not shown) may be provided on the rear surface of the terminal body. The rear input unit is manipulated to receive a command for controlling the operation of the mobile terminal 100, and the input content may be variously set. For example, commands such as power on / off, start, end, scroll, etc., control of the volume of sound output from the first and second

sound output units

152a and 152b, and the touch recognition mode of the display unit 151. Commands such as switching can be received. The rear input unit may be implemented in a form capable of input by touch input, push input, or a combination thereof.

The rear input unit may be disposed to overlap the front display unit 151 in the thickness direction of the terminal body. For example, the rear input unit may be disposed at the rear upper end of the terminal body so that the user can easily manipulate the index body when the user grips the terminal body with one hand. However, the present invention is not necessarily limited thereto, and the position of the rear input unit may be changed.

As such, when the rear input unit is provided at the rear of the terminal body, a new type user interface using the same may be implemented. In addition, when the touch screen or the rear input unit described above replaces at least some functions of the first operation unit 123a provided in the front of the terminal body, the first operation unit 123a is not disposed on the front of the terminal body. The display unit 151 may be configured with a larger screen.

Meanwhile, the mobile terminal 100 may be provided with a fingerprint recognition sensor for recognizing a user's fingerprint, and the controller 180 may use fingerprint information detected through the fingerprint recognition sensor as an authentication means. The fingerprint recognition sensor may be embedded in the display unit 151 or the user input unit 123.

The microphone 122 is configured to receive a user's voice, other sounds, and the like. The microphone 122 may be provided at a plurality of locations and configured to receive stereo sound.

The interface unit 160 serves as a path for connecting the mobile terminal 100 to an external device. For example, the interface unit 160 may be connected to another device (eg, an earphone or an external speaker), a port for short-range communication (for example, an infrared port (IrDA Port), or a Bluetooth port (Bluetooth). Port), a wireless LAN port, or the like, or a power supply terminal for supplying power to the mobile terminal 100. The interface unit 160 may be implemented in the form of a socket for receiving an external card such as a subscriber identification module (SIM) or a user identity module (UIM), a memory card for storing information.

The second camera 121b may be disposed on the rear surface of the terminal body. In this case, the second camera 121b has a photographing direction substantially opposite to that of the first camera 121a.

The second camera 121b may include a plurality of lenses arranged along at least one line. The plurality of lenses may be arranged in a matrix format. Such a camera may be referred to as an 'array camera'. When the second camera 121b is configured as an array camera, images may be photographed in various ways using a plurality of lenses, and images of better quality may be obtained.

The flash 124 may be disposed adjacent to the second camera 121b. The flash 124 shines light toward the subject when the subject is photographed by the second camera 121b.

The second sound output unit 152b may be additionally disposed on the terminal body. The second sound output unit 152b may implement a stereo function together with the first sound output unit 152a and may be used to implement a speakerphone mode during a call.

The terminal body may be provided with at least one antenna for wireless communication. The antenna may be built in the terminal body or formed in the case. For example, an antenna that forms part of the broadcast receiving module 111 (refer to FIG. 1A) may be configured to be pulled out of the terminal body. Alternatively, the antenna may be formed in a film type and attached to the inner side of the rear cover 103, or may be configured such that a case including a conductive material functions as an antenna.

The terminal body is provided with a power supply unit 190 (see FIG. 1A) for supplying power to the mobile terminal 100. The power supply unit 190 may include a battery 191 embedded in the terminal body or detachably configured from the outside of the terminal body.

The battery 191 may be configured to receive power through a power cable connected to the interface unit 160. In addition, the battery 191 may be configured to enable wireless charging through a wireless charger. The wireless charging may be implemented by a magnetic induction method or a resonance method (magnetic resonance method).

Meanwhile, in the drawing, the rear cover 103 is coupled to the rear case 102 to cover the battery 191 to limit the detachment of the battery 191 and to protect the battery 191 from external shock and foreign matter. To illustrate. When the battery 191 is detachably configured to the terminal body, the rear cover 103 may be detachably coupled to the rear case 102.

An accessory may be added to the mobile terminal 100 to protect the appearance or to assist or expand the function of the mobile terminal 100. An example of such an accessory may be a cover or pouch that covers or accommodates at least one surface of the mobile terminal 100. The cover or pouch may be configured to be linked with the display unit 151 to expand the function of the mobile terminal 100. Another example of the accessory may be a touch pen for assisting or extending a touch input to a touch screen.

Next, a communication system that can be implemented through the mobile terminal 100 according to the present invention will be described.

First, the communication system may use different air interfaces and / or physical layers. For example, a radio interface that can be used by a communication system includes frequency division multiple access (FDMA), time division multiple access (TDMA), and code division multiple access (CDMA). ), Universal Mobile Telecommunications Systems (UMTS) (especially Long Term Evolution (LTE), Long Term Evolution-Advanced (LTE-A)), Global System for Mobile Communications (GSM), etc. This may include.

Hereinafter, for convenience of description, the description will be limited to CDMA. However, it is apparent that the present invention can be applied to any communication system including an orthogonal frequency division multiplexing (OFDM) wireless communication system as well as a CDMA wireless communication system.

The CDMA wireless communication system includes at least one terminal 100, at least one base station (Base Station, BS (also referred to as Node B or Evolved Node B)), and at least one Base Station Controllers (BSCs). ), And may include a mobile switching center (MSC). The MSC is configured to connect with the Public Switched Telephone Network (PSTN) and BSCs. The BSCs may be connected to the BS through a backhaul line. The backhaul line may be provided according to at least one of E1 / T1, ATM, IP, PPP, Frame Relay, HDSL, ADSL, or xDSL. Thus, a plurality of BSCs can be included in a CDMA wireless communication system.

Each of the plurality of BSs may include at least one sector, and each sector may include an omnidirectional antenna or an antenna pointing in a radial direction from the BS. In addition, each sector may include two or more antennas of various types. Each BS may be configured to support a plurality of frequency assignments, and the plurality of frequency assignments may each have a specific spectrum (eg, 1.25 MHz, 5 MHz, etc.).

The intersection of sectors and frequency assignments may be called a CDMA channel. BSs may be called Base Station Transceiver Subsystems (BTSs). In this case, one BSC and at least one BS may be collectively referred to as a "base station". The base station may also indicate “cell site”. Or, each of the plurality of sectors for a particular BS may be called a plurality of cell sites.

The broadcast transmitter (BT) transmits a broadcast signal to the terminals 100 operating in the system. The broadcast receiving module 111 illustrated in FIG. 1A is provided in the terminal 100 to receive a broadcast signal transmitted by BT.

In addition, a satellite positioning system (Global Positioning System, GPS) for identifying the position of the mobile terminal 100 may be linked to the CDMA wireless communication system. The satellite 300 helps to locate the mobile terminal 100. Useful location information may be obtained by up to two or more satellites. Here, the location of the mobile terminal 100 may be tracked using all the technologies capable of tracking the location as well as the GPS tracking technology. In addition, at least one of the GPS satellites may optionally or additionally be responsible for satellite DMB transmission.

The location information module 115 provided in the mobile terminal is used to detect, calculate, or identify the location of the mobile terminal. Examples of the location information module 115 may include a Global Position System (GPS) module and a Wireless Fidelity (WiFi) module. If necessary, the location information module 115 may perform any function of other modules of the wireless communication unit 110 to substitute or additionally obtain data regarding the location of the mobile terminal.

The GPS module 115 calculates distance information and accurate time information away from three or more satellites, and then triangulates the calculated information to accurately calculate three-dimensional current position information according to latitude, longitude, and altitude. can do. Currently, a method of calculating position and time information using three satellites and correcting the error of the calculated position and time information using another satellite is widely used. In addition, the GPS module 115 may calculate speed information by continuously calculating the current position in real time. However, it is difficult to accurately measure the position of the mobile terminal using the GPS module in the shadowed area of the satellite signal such as indoors. Accordingly, in order to compensate for GPS positioning, a WPS (WiFi Positioning System) may be utilized.

The Wi-Fi Positioning System (WPS) uses a WiFi module provided in the mobile terminal 100 and a wireless access point (AP) for transmitting or receiving a wireless signal with the WiFi module. As a technology for tracking the location of a, it refers to a WLAN (Wireless Local Area Network) based location positioning technology using WiFi.

The Wi-Fi location tracking system may include a Wi-Fi location server, a mobile terminal 100, a wireless AP connected to the mobile terminal 100, and a database in which any wireless AP information is stored.

The mobile terminal 100 connected to the wireless AP may transmit a location information request message to the Wi-Fi location server.

The Wi-Fi positioning server extracts the information of the wireless AP connected to the mobile terminal 100 based on the location information request message (or signal) of the mobile terminal 100. Information of the wireless AP connected to the mobile terminal 100 may be transmitted to the Wi-Fi positioning server through the mobile terminal 100, or may be transmitted from the wireless AP to the Wi-Fi positioning server.

Based on the location information request message of the mobile terminal 100, the extracted information of the wireless AP is MAC Address, Service Set IDentification (SSID), Received Signal Strength Indicator (RSSI), Reference Signal Received Power (RSRP), RSRQ ( It may be at least one of Reference Signal Received Quality, Channel Information, Privacy, Network Type, Signal Strength, and Noise Strength.

As described above, the Wi-Fi location server receives the information of the wireless AP connected to the mobile terminal 100, and extracts the wireless AP information corresponding to the wireless AP to which the mobile terminal is connected from a pre-established database. At this time, the information of any wireless AP stored in the database is MAC address, SSID, channel information, Privacy, Network Type, latitude and longitude coordinates of the wireless AP, building name, floor number, indoor detailed location information (GPS coordinates) Available), the AP owner's address, telephone number, and the like. In this case, in order to remove the wireless AP provided by the mobile AP or the illegal MAC address in the positioning process in the positioning process, the Wi-Fi positioning server may extract only a predetermined number of wireless AP information in the order of high RSSI.

Thereafter, the Wi-Fi location server may extract (or analyze) location information of the mobile terminal 100 using at least one piece of wireless AP information extracted from a database. The location information of the mobile terminal 100 is extracted (or analyzed) by comparing the included information with the received wireless AP information.

As a method for extracting (or analyzing) the location information of the mobile terminal 100, a cell-ID method, a finger print method, a triangulation method, a landmark method, or the like may be utilized.

The Cell-ID method is a method of determining a location of a mobile AP having the strongest signal strength among neighboring wireless AP information collected by the mobile terminal. The simple implementation, no additional cost, and quick location information can be obtained. However, the low installation density of the wireless AP reduces the positioning accuracy.

The fingerprint method is a method of selecting a reference location in a service area to collect signal strength information and estimating a location based on signal strength information transmitted from a mobile terminal based on the collected information. In order to use the fingerprint method, it is necessary to database propagation characteristics in advance.

The triangulation method calculates the position of the mobile terminal based on the coordinates of at least three wireless APs and the distance between the mobile terminals. In order to measure the distance between the mobile terminal and the wireless AP, the signal strength is converted into distance information, a time of arrival of a radio signal (ToA), a time difference of transmission of a signal (Time Difference of Arrival, TDoA) , Angle of signal transmission (Angle of Arrival, AoA) may be used.

The landmark method is a method of measuring the location of a mobile terminal using a landmark transmitter that knows the location.

In addition to the methods listed, various algorithms may be utilized as a method for extracting (or analyzing) location information of a mobile terminal.

The extracted location information of the mobile terminal 100 is transmitted to the mobile terminal 100 through the Wi-Fi positioning server, the mobile terminal 100 can obtain the location information.

The mobile terminal 100 may obtain location information by being connected to at least one wireless AP. In this case, the number of wireless APs required to obtain location information of the mobile terminal 100 may be variously changed according to a wireless communication environment in which the mobile terminal 100 is located.

As described above with reference to FIG. 1A, a mobile terminal according to the present invention includes Bluetooth ™, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and NFC (Near). Short-range communication technologies such as Field Communication, Wireless USB, and the like may be applied.

Among these, the NFC module provided in the mobile terminal supports contactless short-range wireless communication between terminals at a distance of about 10 cm. The NFC module may operate in any one of a card mode, a reader mode, and a P2P mode. In order for the NFC module to operate in a card mode, the mobile terminal 100 may further include a security module for storing card information. Here, the security module may be a physical medium such as a universal integrated circuit card (UICC) (for example, a subscriber identification module (SIM) or a universal SIM (USIM)), a secure micro SD, and a sticker, or a logical medium embedded in a mobile terminal ( For example, it may be an embedded SE (Secure Element). Data exchange based on a single wire protocol (SWP) may be performed between the NFC module and the security module.

When the NFC module is operated in the card mode, the mobile terminal can transmit the stored card information to the outside like a conventional IC card. Specifically, when the mobile terminal storing the card information of the payment card such as a credit card or bus card is close to the toll payment machine, the mobile short-range payment can be processed, and the mobile terminal storing the card information of the access card is approved for access. Close to the flag, the approval process can be started. Cards such as credit cards, transportation cards, and access cards are mounted in a security module in the form of an applet, and the security module may store card information about the mounted card. Here, the card information of the payment card may be at least one of a card number, balance, and usage history, and the card information of the access card may include at least one of a user's name, number (eg, student's student number or company number), and access history. It can be one.

When the NFC module is operated in the reader mode, the mobile terminal can read data from an external tag. In this case, the data received by the mobile terminal from the tag may be coded in a data exchange format (NFC Data Exchange Format) determined by the NFC forum. In addition, the NFC Forum defines four record types. Specifically, the NFC forum defines four record type definitions (RTDs) such as smart poster, text, uniform resource identifier (URI), and general control. If the data received from the tag is a smart poster type, the controller may execute a browser (eg, an Internet browser). If the data received from the tag is a text type, the controller may execute a text viewer. When the data received from the tag is a URI type, the controller executes a browser or makes a phone call, and when the data received from the tag is a general control type, the controller can execute an appropriate operation according to the control content.

When the NFC module is operated in a peer-to-peer mode, the mobile terminal may perform P2P communication with another mobile terminal. In this case, LLCP (Logical Link Control Protocol) may be applied to P2P communication. A connection may be created between the mobile terminal and another mobile terminal for P2P communication. In this case, the generated connection may be classified into a connectionless mode in which one packet is exchanged and terminated, and a connection-oriented mode in which packets are continuously exchanged. Through P2P communication, data such as electronic business cards, contact information, digital photos, URLs, and setup parameters for Bluetooth and Wi-Fi connections can be exchanged. However, since the available distance of NFC communication is short, the P2P mode may be effectively used for exchanging small data.

Hereinafter, embodiments related to a control method that can be implemented in the mobile terminal configured as described above will be described with reference to the accompanying drawings. It is apparent to those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit and essential features of the present invention.

When the display unit 151 is implemented as the touch screen 151, the present invention can be implemented more easily. Hereinafter, the present invention will be described on the assumption that the display unit 151 is the touch screen 151. do. In addition, when the user input unit 130 includes a touch sensor, the touch screen 151 may also be used as the user input unit 130.

Referring to FIG. 2, the controller 180 of the mobile terminal 100 obtains at least one of a capacitance value on the touch screen 151 and a frequency spectrum of a sound input through the microphone 122 (S201).

In one embodiment, when the mobile terminal 100 is in the water, the capacitance value obtained through the touch screen 151 and when the mobile terminal 100 is not in the water, is obtained through the touch screen 151. Capacitance values can be different.

The controller 180 may determine whether the mobile terminal 100 is in the water by using the capacitance value obtained through the touch screen 151.

In another embodiment, the controller 180 may determine whether the mobile terminal 100 is in the water by using the frequency spectrum of the sound input to the microphone 122.

In another embodiment, the controller 180 may determine whether the mobile terminal 100 is in the water based on the capacitance value acquired through the touch screen 151 and the frequency spectrum of the sound input to the microphone 122. have.

The controller 180 detects whether the mobile terminal 100 is in the water based on at least one of the obtained capacitance value and the frequency spectrum of the sound (S203).

The controller 180 may determine that the mobile terminal 100 is in the water when one or more of the obtained capacitance value and the frequency spectrum of the sound satisfy a preset condition.

The controller 180 may determine that the mobile terminal 100 is not in the water when one or more of the obtained capacitance value and the frequency spectrum of the sound do not satisfy the preset condition.

In one embodiment, the preset condition may represent a condition for the mobile terminal 100 to enter the underwater mode. The meaning of the underwater mode will be described later.

According to an embodiment, the preset condition may be satisfied when the capacitance value of each of the predetermined areas on the touch screen 151 is equal to or less than the preset value.

According to another embodiment, the preset condition may be satisfied when the difference in capacitance values between predetermined areas on the touch screen 151 is equal to or less than the preset value.

According to another embodiment, the preset condition may be satisfied when a difference between the maximum capacitance value and the minimum capacitance value among the capacitance values of the predetermined areas on the touch screen 151 is equal to or less than the preset value.

This is because when the touch screen 151 touches water, capacitance values of the areas on the touch screen 151 touched by water are evenly distributed in a range below a predetermined value.

The predetermined area is a plurality of arbitrary areas on the touch screen 151 and may be evenly distributed on the touch screen 151, but this is merely an example.

According to another embodiment of the present disclosure, the preset condition may be satisfied when the spectrum pattern of the sound input through the microphone 122 provided in the mobile terminal 100 is a preset pattern.

In another embodiment, the preset condition may be satisfied when the capacitance value of the touch screen 151 is equal to or less than the preset value and the spectral pattern of the sound input through the microphone 122 is a preset pattern.

Step S203 will be described with reference to the drawings below.

In particular, the following description focuses on an embodiment of determining whether the mobile terminal 100 is in the water through a capacitance value on the touch screen 151.

3 is a diagram illustrating capacitance change when a touch input is present on a capacitive touch screen, and FIGS. 4A and 4B are capacitance values corresponding to predetermined areas of the touch screen when the mobile terminal is not placed in the water; And a distribution of capacitance values corresponding to predetermined regions of the touch screen when the mobile terminal is in the water.

Referring to FIG. 3, in the touch screen 151, a contact is basically formed between the

conductive materials

200 and 201, and a predetermined parasitic capacitance (hereinafter referred to as Cp) is present therebetween.

When the touch screen 151 is touched by a conductive material, for example, when the human finger 220 touches the touch screen 151, the

conductive screen

200 and 201 may also be placed between the fingers 200. A predetermined capacitance (hereinafter referred to as Cf) is generated.

Therefore, when there is a touch on the touch screen 151, the total capacitance value is the sum of the Cp value and the Cf value, which is increased than when there is no touch.

The determination of the presence or absence of the touch may be made in the touch controller which may exist separately in the touch screen 151, but for convenience, the controller 180 may determine whether the touch exists.

In general, capacitance values are uneven across the entire area on the touch screen 151 due to various characteristics such as material characteristics, manufacturing tolerances, and use environment of the touch screen 151, and there are variations in capacitance values for each area. .

When the water touches the touch screen 151, since water is also conductive like a human hand, a predetermined capacitance is generated between the

conductive materials

200 and 201 and water, and the water is touched on the touch screen 151. In the region, the capacitance value appears relatively evenly.

4A illustrates a distribution of capacitance values corresponding to the entire area of the touch screen 151 when the mobile terminal 100 is placed outside the water. In this case, the capacitance value ranges from 1.5pF to 1.9pF over the entire area on the touch screen 151.

Referring to FIG. 4B, when the mobile terminal 100 is placed in the water, a distribution of capacitance values corresponding to the entire area of the touch screen 151 is shown. In this case, the capacitance value has a value of 1.65 pF or less over the entire area on the touch screen 151.

According to an embodiment, when the capacitance value is less than or equal to a preset value for the entire area of the touch screen 151, the controller 180 may determine that the mobile terminal 100 is in the water.

The present invention determines whether or not the mobile terminal 100 is in the underwater environment by using the characteristics of the capacitance value detected through the touch screen 151 when water touches the touch screen 151, and the mobile terminal 100 If it is determined that the underwater environment, the user wants to provide a solution that can enter the underwater mode without a separate procedure to set the underwater mode.

2 will be described again.

If it is determined that the mobile terminal 100 is in the water, the controller 180 enters the operation mode of the mobile terminal 100 into the underwater mode (S205), and the mobile terminal 100 is not in the water. If it is determined, the operation mode of the mobile terminal 100 enters the normal mode (S204).

In an embodiment, the underwater mode of the mobile terminal 100 may represent a mode set to an environment suitable for the mobile terminal 100 to operate in the underwater state.

In an embodiment, the general mode of the mobile terminal 100 may indicate a mode in which the mobile terminal 100 operates in addition to the underwater mode of the mobile terminal 100.

Meanwhile, when entering the underwater mode as the operation mode of the mobile terminal 100, the controller 180 may display a guide window including information indicating that the underwater mode has been entered on the touch screen 151.

In one embodiment, the guide window may be displayed in the form of a pop-up window.

The controller 180 displays guide information for controlling a function of the mobile terminal 100 through the touch screen 151 under the underwater mode of the mobile terminal 100 (S207).

The guide information may be information for guiding a user that the mobile terminal 100 can operate in a specific situation. In detail, the guide information may be information indicating that the mobile terminal 100 can operate when the mobile terminal 100 receives a predetermined input.

The guide information may include information for controlling the operation of the mobile terminal 100 in the underwater mode.

In an embodiment, the guide information may include information indicating that the mobile terminal 100 can operate in the underwater mode when a force touch input is received on the touch screen 151. The force touch input may be a touch input having a pressure of a certain intensity or more.

In another embodiment, the guide information may include information indicating that the mobile terminal 100 can operate in the underwater mode only by an input through a pen capable of controlling the operation of the mobile terminal 100.

According to another embodiment, the guide information may include information indicating that the mobile terminal 100 can operate in the underwater mode when the touch input is maintained on the touch screen 151 for a preset time.

In another embodiment, the guide information may include information indicating that the mobile terminal 100 can operate in the underwater mode through a hand gesture input.

The controller 180 obtains a user input according to the guide information (S209) and performs a function of the mobile terminal 100 corresponding to the obtained user input (S211).

In one embodiment, the user input may be a force touch input having a pressure of a predetermined intensity or more.

In another embodiment, the user input may be an input through a pen for controlling the operation of the mobile terminal 100.

In another embodiment, the user input may be a long touch input for touching the touch screen 151 for a preset time.

In another embodiment, the user input may be a hand gesture input.

In an embodiment, the function of the mobile terminal 100 corresponding to the user input may be a function performed in response to the input on the touch screen 151.

For example, the function of the mobile terminal 100 corresponding to the user input may be a function performed by selecting a button displayed on the touch screen 151. For example, the function to be performed may be a photographing function, an image enlargement function, an image reduction function, and the like, but is not limited thereto, and any function may be performed through the touch screen 151.

In the following figures, steps S207 to S211 are described.

In FIGS. 5 to 7, it is assumed that the mobile terminal 100 is in the water and the camera photographing function is activated.

The touch screen 151 of the mobile terminal 100 displays an image 500 acquired through a camera (not shown). That is, the mobile terminal 100 displays the preview image 500 through the touch screen 151.

The touch screen 151 may further display a photographing button 501 for photographing the preview image 500.

When the mobile terminal 100 is in the underwater state, the controller 180 may enter the operation mode of the mobile terminal 100 into the underwater mode.

When the mobile terminal 100 enters the underwater mode, as illustrated in FIG. 5, the controller 180 may include a guide including information indicating that the underwater mode of the mobile terminal 100 is executed and that only the force touch can be operated. The window 510 may be displayed on the touch screen 151.

Referring to FIG. 6, the controller 180 may obtain an average pressure intensity B of pressure intensities corresponding to each of touch events generated by water pressure.

The controller 180 may compare the obtained average pressure intensity B with the pressure intensity A of the touch input by the user's finger. That is, the controller 180 may perform a function corresponding to the touch input when the pressure intensity of the touch input exceeds the average pressure intensity due to the water pressure, based on the comparison result.

The controller 180 may perform a function corresponding to the force touch input when a force touch input exceeding an average pressure strength by hydraulic pressure is received.

Meanwhile, when the force touch input exceeding the average pressure intensity is received, the controller 180 places the guide circle 530 on the touch screen 151 at the position where the force touch input is received, as shown in FIG. 7. I can display it.

The guide circle 530 may be an indicator indicating that a force touch input is received to control the function of the mobile terminal 100.

When the object 503 included in the preview image 500 is selected through the force touch input, the controller 180 may focus pick the selected object 503 as illustrated in FIG. 7. Focus peaking may be a function of emphasizing a portion corresponding to a specific focus in the preview image 500.

According to the force touch input, the focus peaked object 503 may be highlighted to be identified with other portions of the preview image 500. For example, the focus peaked object 503 may be distinguished from other portions through the highlight line 540 formed along the outline of the object 503.

If the photographing button 501 is selected through a force touch input exceeding an average pressure intensity caused by water pressure, the controller 180 may photograph the preview image 500.

The touch screen 151 of the mobile terminal 100 uses a static touch method. The touch screen 151 includes a highly conductive glass such as indium tin oxide, and current flows through the glass.

When the user's finger touches the glass surface, electrons flow through the finger (dielectric constant 100) having a larger dielectric constant than air (dielectric constant 1). Accordingly, a change in the electric field is detected at the touch point, and the function of the mobile terminal 100 may be controlled through the detection result.

However, since the dielectric constant of the finger which is the main body of the touch input and the dielectric constant of water are the same, when the mobile terminal 100 is in the water, the mobile terminal 100 distinguishes the touch event by the water and the touch input by the finger. Hard.

The force touch input may be one input for controlling the mobile terminal 100 when the mobile terminal 100 is in the water.

Even if the mobile terminal 100 is placed in the water, the user can easily control the mobile terminal 100 through a force touch input distinguished from a touch event by water.

According to another embodiment of the present disclosure, the mobile terminal 100 may be controlled in the underwater state through a pen device interworking with the mobile terminal 100.

In FIG. 8 and FIG. 9, it is assumed that the mobile terminal 100 is in the water and the camera photographing function is activated.

The touch screen 151 of the mobile terminal 100 displays an image 500 acquired through a camera (not shown). That is, the mobile terminal 100 displays the preview image 500 through the touch screen 151. The touch screen 151 may further display a photographing button 501 for photographing the preview image 500.

When the mobile terminal 100 enters the underwater mode, as shown in FIG. 8, the controller 180 executes the underwater mode of the mobile terminal 100, and the mobile terminal 100 can operate through the pen device. The guide window 810 including information indicating that the image is controlled (or controllable) may be displayed on the touch screen 151.

In another embodiment, when the mobile terminal 100 enters the underwater mode, the controller 180 induces the underwater mode of the mobile terminal 100 to be executed and to eject the pen device, as shown in FIG. 9. The guide window 910 may be displayed on the touch screen 151.

In another embodiment, when the mobile terminal 100 enters the underwater mode, the controller 180 executes the underwater mode of the mobile terminal 100, and the mobile terminal 100 can be controlled by the pen device. A guide window 910 may be displayed on the touch screen 151 to guide the device out.

The pen device 930 may be mounted inside the mobile terminal 100 and may be detachable from the mobile terminal 100.

When the pen tip of the pen device 930 touches the photographing button 501, the controller 180 may photograph the preview image 500.

The mobile terminal 100 may recognize a touch of the pen device 930 through an electromagnetic resonance method.

FIG. 10 is a diagram illustrating a principle in which a mobile terminal recognizes a touch of a pen device underwater according to an exemplary embodiment.

Referring to FIG. 10, a touch screen 151, a sensor 1010, and a shielding sheet 1030 included in the mobile terminal 100 are illustrated. The touch screen 151, the pen touch sensor 1010, and the shielding sheet 1030 may form a stacked structure.

The pen touch sensor 1010 for detecting a touch of the pen device 930 may be provided below the touch screen 151.

The lower side of the pen touch sensor 1010 may be provided with a shielding sheet 1030 for shielding the magnetic field generated by the sensor 1010.

The sensor 1010 and the shielding sheet 1030 may be separately provided with the touch screen 151 or may be included in the touch screen 151.

The pen touch sensor 1010 may include a second resonant circuit 931 included in the pen device 930 and a first resonant circuit 1011 for electromagnetic resonance.

Each of the first resonant circuit 931 and the second resonant circuit 1011 may include one or more coils and capacitors for electromagnetic resonance.

When the pen tip of the pen device 930 contacts the touch screen 151, the pen touch sensor 1010 may detect a generation position of an electromagnetic force generated through electromagnetic resonance. The controller 180 may perform a function of the mobile terminal 100 corresponding to the detected generation position.

According to an exemplary embodiment of the present invention, when the mobile terminal 100 is in the water, the input is possible through the pen device 930, thereby resolving the problem of not recognizing a general finger touch input.

Meanwhile, according to another embodiment of the present disclosure, operation control of the mobile terminal 100 through the pen device 930 may be associated with operation control of the mobile terminal 100 through the gesture input.

It is assumed that the mobile terminal 100 can control the operation through the gesture input in the underwater state. The mobile terminal 100 may recognize a user's hand gesture based on the image input through the camera. When the recognized hand gesture is a previously stored hand gesture, the mobile terminal 100 may perform a function corresponding to the corresponding hand gesture.

The gesture control function may be on or off.

When the gesture control function is turned on, the controller 180 can detect whether the pen device 930 is detached from the mobile terminal 100.

When the gesture control function is turned on and the pen device 930 is detected to be detached from the mobile terminal 100 (if separated), the controller 180 may automatically turn off the gesture control function. That is, the controller 180 can determine that the user intends to control the mobile terminal 100 through the pen device 930, and automatically turn off the gesture control function.

When the gesture control function is turned on and the pen device 930 is not detached from the mobile terminal 100 (that is, when it is mounted), the controller 180 can keep the gesture control function on.

When the gesture control function is turned off, the controller 180 can detect whether the pen device 930 is detached from the mobile terminal 100.

When the gesture control function is turned off and the pen device 930 is detached from the mobile terminal 100, the controller 180 may keep the gesture control function off.

When the gesture control function is turned off and the pen device 930 is not detached from the mobile terminal 100, the controller 180 may automatically turn on the gesture control function.

Depending on whether the pen device 930 is detached from the mobile terminal 100 and whether the gesture control function is on or off, the user may control the operation of the mobile terminal 100 in a desired manner according to the situation.

Meanwhile, according to an embodiment of the present disclosure, the operation of the mobile terminal 100 may be controlled in the underwater state through a touch input over a preset time.

In FIG. 11, it is assumed that the mobile terminal 100 is in the water and the camera photographing function is activated.

When the mobile terminal 100 enters the underwater mode, as illustrated in FIG. 11, the controller 180 executes the underwater mode of the mobile terminal 100, and touch input for a preset time or more (hereinafter, long touch input). A guide window 1110 indicating that the mobile terminal 100 can be operated may be displayed.

The controller 180 may recognize the long touch input in the underwater state based on the comparison of the capacitance value of the long touch area corresponding to the long touch input with the capacitance value of the touch areas around the long touch area.

This will be described with reference to FIG. 12.

Referring to FIG. 12, it is assumed that the touch screen 151 of the mobile terminal 100 is in an underwater state.

In addition, the long touch area 1210 on which the long touch input is received on the touch screen 151 and the touch areas 1220 to 1250 around the long touch area 1210 are illustrated.

The long touch area 1210 may be an area touched by a user's finger for a predetermined time or more. In this case, the capacitance value of each of the surrounding touch regions 1220 to 1250 may change according to the flow of water.

However, since the capacitance value of the long touch region 1210 is a state in which a touch input by a user's finger is maintained, the capacitance value does not change or changes according to the flow of water.

The controller 180 may detect the long touch input when the amount of change in the capacitance value corresponding to the long touch area 1210 is not present or is within a preset change amount for a predetermined time, and perform a function corresponding to the long touch input. Can be.

The controller 180 changes the amount of change in the capacitance value corresponding to the long touch area 1210 below the preset change amount, and the amount of change in the capacitance value corresponding to each of the surrounding touch areas 1220 to 1250 exceeds the preset change amount. In this case, a long touch input may be detected, and a function of the mobile terminal corresponding to the detected long touch input may be performed.

For example, when the amount of change in the capacitance value corresponding to the long touch region 1210 is within the first change amount for a predetermined time, the controller 180 may detect the long touch input and provide a function corresponding to the long touch input. Can be done. In this case, the amount of change in capacitance value corresponding to each of the touch areas 1220 to 1250 around the long touch area 1210 may be within the second amount of change. Here, the first change amount may be smaller than the second change amount.

For example, when the photographing button 501 illustrated in FIG. 11 is touched for a preset time or more, the controller 180 may photograph the preview image 500 according to the detected long touch input.

According to an embodiment of the present disclosure, the operation of the mobile terminal 100 may be controlled according to the hand gesture input under the underwater mode of the mobile terminal 100.

13A to 13F, it is assumed that the mobile terminal 100 is in the water and the camera photographing function is activated.

In an embodiment, when the mobile terminal 100 enters the underwater mode, the controller 180 notifies that the underwater mode of the mobile terminal 100 is executed and that the mobile terminal 100 can operate through a user's gesture input. A guide window including information may be displayed on the touch screen 151.

In another embodiment, when the mobile terminal 100 enters the underwater mode, as illustrated in FIG. 13A, the controller 180 executes the underwater mode of the mobile terminal 100 and moves through the user's gesture input. A guide window 1310 including information indicating that a photographing function of the terminal 100 is available may be displayed on the touch screen 151.

In addition, an underwater mode end button 1300 for terminating the underwater mode of the mobile terminal 100 may be further displayed on one side of the guide window 1310.

The guide window 1310 may execute the underwater shooting mode, and may include guide text 1311 for requesting a user's specific gesture input and a gesture guide image 131 corresponding to the specific gesture. Here, the specific gesture may be a hand gesture that draws a circle by using a thumb and index finger, but this is only an example.

When the rear camera (not shown) provided in the mobile terminal 100 is covered by a user's hand according to the request of the guide text 1311, the controller 180 controls the photographing guide on the touch screen 151 according to FIG. 13B. Window 1330 may be displayed.

The photographing guide window 1330 may include guide information for moving a specific gesture to a corresponding object in order to focus the object to be photographed.

As illustrated in FIG. 13C, when the user takes a specific gesture to focus, the controller 180 may recognize a gesture image 1370 corresponding to the specific gesture included in the preview image 500.

When the gesture image 1370 acquired through the rear camera coincides with the gesture image previously stored in the memory 170, the controller 180 focuses the photographing object as illustrated in FIG. 13D and photographs a button 501. ) And one or more of the record button 503 may be displayed on the touch screen 151. The record button 503 may be a button for recording or shooting a video.

At the same time, the controller 180 can focus peak the object 540 corresponding to the focus.

After a certain time elapses after the gesture image 1370 corresponding to the specific gesture is moved to the photographing button 501, the controller 180 may perform a function corresponding to the photographing button 501. That is, the controller 180 can capture the preview image 500.

As another example, as illustrated in FIG. 13E, when the controller 180 detects that the gesture image 1370 is moved to the capture button 501, the controller 180 may capture the preview image 500 after executing the timer function. have.

The controller 180 may recognize the number of fingers spread through the gesture image 1370 and set a timer to a time corresponding to the number of recognized fingers. For example, when the number of fingers spread out through the gesture image 1370 is three, the controller 180 displays the timer guide information 1350 indicating that the picture is taken after three seconds as illustrated in FIG. 13E. 151 may be displayed on the screen.

Accordingly, after 3 seconds, the preview image 500 may be photographed.

Meanwhile, as shown in FIG. 13F, when the gesture image 1370 is moved to the recording button 502, the controller 180 may record the preview image 500 in real time.

Meanwhile, when focusing the camera through the gesture input, the depth of focus may be adjusted according to the type of the gesture input.

14A and 14B are views corresponding to FIG. 13C, and descriptions of overlapping contents will be omitted.

The controller 180 may adjust the depth of focus based on the gesture image 1370 included in the preview image 500.

For example, when the size of the circle formed by the thumb and the index finger is increased through the gesture image 1370, the object in the distance may be focused. Accordingly, an image of an object located at a short distance from the mobile terminal 100 may be blurred, and an image of an object located at a far distance may be clear.

On the contrary, for example, when the size of the circle formed by the thumb and the index finger is reduced through the gesture image 1370, the object located near may be focused. Accordingly, an image of an object located at a short distance from the mobile terminal 100 may be clear, and an image of an object located at a far distance may be blurred.

In the underwater mode of the mobile terminal 100, the user can switch the depth of the camera focus with only a simple gesture input.

According to another exemplary embodiment of the present disclosure, when the underwater terminal is photographed by the mobile terminal 100, the mobile terminal 100 may perform a color inversion function for the preview image.

This is because diffuse reflection is severe in the water, and the image acquired through the camera is not properly displayed on the touch screen 151 during underwater shooting.

Referring to FIG. 15, the mobile terminal 100 is in the water and displays the preview image 500 acquired through the camera on the touch screen 151.

There is a float in the water, and due to the diffuse reflection caused by the presence of the float, a clear preview image cannot be obtained as in the water.

Thus, when the operation mode of the mobile terminal 100 enters the underwater mode, the controller 180 may invert the color of the preview image 500 as shown in FIG. 15.

When the mobile terminal 100 operates in the underwater mode, the controller 180 performs color inversion on the image acquired through the camera, and displays the final image 1500 on which the color inversion is performed on the touch screen 151. I can display it.

Due to the color reversal function, the visibility of the user with respect to the preview image may be improved during underwater shooting.

Meanwhile, according to another exemplary embodiment of the present disclosure, when underwater is photographed through the mobile terminal 100, the color level of the preview image may be adjusted through the red filter.

This is because, in underwater photography, the amount of incident light is reduced due to the medium of water, so that an image of which blue is emphasized is obtained.

Referring to FIG. 16, the mobile terminal 100 is in the water and displays a preview image 500 acquired through a rear camera (not shown) on the touch screen 151.

When the red filter is not attached to the rear camera, the red visible light is not properly transmitted in the water, and due to the medium of water, the amount of light is also insufficient. Accordingly, the preview image 500 is acquired with the blue series highlighted.

In this state, when the red filter is mounted on the rear camera, the rear camera may acquire the preview image 500 in which the red color level is increased through the red filter.

Due to the red filter, the red color level is emphasized, so that a clearer image can be taken underwater.

On the other hand, when the user photographs underwater through the mobile terminal 100, the user may place the mobile terminal 100 in the waterproof pack, and perform the shooting.

However, in this case, the proximity sensor included in the mobile terminal 100 may recognize the waterproof pack as one object, and the screen of the touch screen 151 may be turned off. That is, when the mobile terminal 100 is in the bag, the mobile terminal 100 determines that the mobile terminal 100 is in the bag through the proximity sensor, and is the same principle as turning off the screen of the touch screen 151. .

Accordingly, when the user puts the mobile terminal 100 in the waterproof pack and performs underwater shooting, the screen of the touch screen 151 is turned off, which causes inconvenience in shooting.

In order to solve this problem, according to an exemplary embodiment of the present invention, the mobile terminal 100 is placed in the waterproof pack using the proximity sensor and the illuminance sensor at the same time, and the screen of the touch screen 151 is not turned off even when underwater.

That is, the mobile terminal 100 does not turn off the screen of the touch screen 151 when the brightness level of the light measured by the illuminance sensor is greater than or equal to the preset brightness level even when the proximity sensor detects that the object is in proximity. You may not.

Accordingly, when the user puts the mobile terminal 100 in the waterproof pack and performs underwater shooting, the problem of turning off the screen may be solved.

Meanwhile, according to an exemplary embodiment of the present disclosure, when the mobile terminal 100 is placed in a waterproof pack and underwater shooting is performed, a near focus is automatically adjusted due to the waterproof pack, and thus a problem of blurring the captured image may be solved. have.

Referring to FIG. 17, the mobile terminal 100 is placed in a waterproof pack 1700 for a waterproof function and displays a preview image 1710 obtained through a rear camera (not shown).

Although the mobile terminal 100 detects that the waterproof pack 1700 is close by the proximity sensor 141, when the brightness level measured by the illuminance sensor 142 is greater than or equal to the preset brightness level, the screen of the touch screen 151 Do not turn off.

However, the waterproof pack 1700 is also recognized as a photographing object, so that the focus of the rear camera may be automatically set to near focus. As the focus of the rear camera is set to near focus, the preview image 1710 may be blurred due to the influence of the waterproof pack.

To solve this problem, the mobile terminal 100 can detect the presence of the waterproof pack 1700 and automatically switch the focus of the rear camera from the near focus to the far focus.

The mobile terminal 100 may detect the presence of the waterproof pack 1700 through the proximity sensor 141. An optical proximity sensor may be used as the proximity sensor 141. If the light emitted through the optical proximity sensor is continuously received, the controller 180 may detect that the waterproof pack 1700 is present.

Accordingly, the controller 180 may set the focus of the rear camera to the far focus. Thereafter, the touch screen 151 may display the preview image 1730 corresponding to the far focus.

As such, according to an embodiment of the present invention, when underwater shooting through the mobile terminal 100 in the waterproof pack 1700, due to the presence of the waterproof pack 1700, it is possible to prevent the camera from focusing to near focus. Can be.

The present invention described above can be embodied as computer readable codes on a medium in which a program is recorded. The computer-readable medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of computer-readable media include hard disk drives (HDDs), solid state disks (SSDs), silicon disk drives (SDDs), ROMs, RAMs, CD-ROMs, magnetic tapes, floppy disks, optical data storage devices, and the like. There is this. In addition, the computer may include the controller 180 of the terminal.

Accordingly, the above detailed description should not be construed as limiting in all aspects and should be considered as illustrative. The scope of the invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the invention are included in the scope of the invention.

Claims

In a mobile terminal,

touch screen; And

Detect whether the mobile terminal is under water based on a capacitance value on the touch screen,

When it is detected that the mobile terminal is in the water, the operation mode of the mobile terminal is entered into the underwater mode,

And a controller configured to display guide information for controlling the operation of the mobile terminal in the underwater mode on the touch screen.

Mobile terminal.
The method of claim 1,

The control unit

Receiving a user input according to the guide information and executing a function of the mobile terminal corresponding to the received user input

Mobile terminal.
The method of claim 2,

The guide information is

And information indicating that the operation of the mobile terminal can be controlled through a force touch input having a pressure greater than or equal to a certain intensity under the underwater mode.

Mobile terminal.
The method of claim 3,

The control unit

Obtaining an average pressure intensity of pressure intensities corresponding to each of the touch events generated by the hydraulic pressure,

When the pressure intensity of the force touch input exceeds the average pressure intensity, performing a function of the mobile terminal corresponding to the force touch input

Mobile terminal.
The method of claim 2,

The guide information is

And information indicating that the operation of the mobile terminal is controllable through the pen device mountable to the mobile terminal in the underwater mode.

Mobile terminal.
The method of claim 5,

When the pen nib of the pen device is in contact with the touch screen, the pen touch sensor further comprises a pen touch sensor for detecting the location of the electromagnetic force generated through the electromagnetic resonance with the pen device,

The control unit

Performing a function of a mobile terminal corresponding to the detected occurrence position

Mobile terminal.
The method of claim 5,

The control unit

If the pen device is detached from the mobile terminal while the gesture control function for controlling the function of the mobile terminal is turned on by a hand gesture, the gesture control function is turned off.

When the pen device is mounted in the mobile terminal in a state where the gesture control function is turned off, turning on the gesture control function.

Mobile terminal.
The method of claim 2,

The guide information is

And information indicating that the operation of the mobile terminal can be controlled through a long touch input maintained for a predetermined time or more under the underwater mode.

Mobile terminal.
The method of claim 8,

The control unit

Detecting the long touch input based on a comparison of a change amount of a capacitance value corresponding to the long touch area where the long touch input on the touch screen is received and a change amount of a capacitance value corresponding to each of the touch areas around the long touch area; doing

Mobile terminal.
The method of claim 9,

The control unit

The amount of change in the capacitance value corresponding to the long touch area is less than a preset amount of change,

When the amount of change in capacitance value corresponding to each of the surrounding touch areas exceeds a preset amount of change,

Detects the long touch input and performs a function of the mobile terminal corresponding to the detected long touch input

Mobile terminal.
The method of claim 2,

The guide information is

Under the underwater mode, including information indicating that the operation of the mobile terminal is controllable through the gesture input

Mobile terminal.
The method of claim 11,

The mobile terminal

Further includes a camera,

The control unit

When the gesture image included in the preview image acquired through the camera matches the previously stored gesture image, one or more of a shooting button and a recording button are displayed on the touch screen.

Mobile terminal.
The method of claim 12,

The control unit

When the gesture image is located at any one of the shooting button and the recording button, the gesture image may perform a function corresponding to the corresponding button.

Mobile terminal.
The method of claim 1,

The mobile terminal

Further includes a camera,

The control unit

Under the underwater mode, the color of the image acquired through the camera is inverted, and the color-inverted image is displayed on the touch screen.

Mobile terminal.
The method of claim 1,

The mobile terminal

A camera for acquiring an image; And

Further comprising a red filter mounted to the camera,

The control unit

Under the underwater mode, a color level adjusted image is displayed on the touch screen through the red filter.

Mobile terminal.
In a mobile terminal,

touch screen; And

Detect whether the mobile terminal is under water based on a capacitance value on the touch screen,

When it is detected that the mobile terminal is in the water, the operation mode of the mobile terminal is entered into the underwater mode,

And a controller configured to display guide information on the touch screen, the guide information including information indicating that the operation of the mobile terminal is controllable through a long touch input maintained for a predetermined time or more under the underwater mode.

The control unit

Detecting the long touch input based on a change amount of a capacitance value of a long touch area corresponding to the long touch input received on the touch screen;

Mobile terminal.
The method of claim 16,

The control unit

The long touch input is based on a comparison of a change amount of a capacitance value of a long touch area corresponding to the long touch input received on the touch screen and a change amount of a capacitance value corresponding to each of the touch areas around the long touch area. Detect

Mobile terminal.
The method of claim 17,

The control unit

The amount of change in the capacitance value corresponding to the long touch area is less than a preset amount of change,

When the amount of change in capacitance value corresponding to each of the surrounding touch areas exceeds a preset amount of change,

Detects the long touch input and performs a function of the mobile terminal corresponding to the detected long touch input

Mobile terminal.
The method of claim 16,

When the mobile terminal enters the underwater mode, the controller displays information indicating that the mobile terminal has entered the underwater mode on the touch screen.

Mobile terminal.
The method of claim 16,

The mobile terminal

Further includes a camera,

The control unit

Under the underwater mode, the color of the image acquired through the camera is inverted, and the color-inverted image is displayed on the touch screen.

Mobile terminal.