KR20130043809A - Mobile terminal and method for controlling thereof - Google Patents

Abstract

PURPOSE: A portable terminal and a control method thereof are provided to safely release a lock state of a terminal using a set number of pattern inputs. CONSTITUTION: A memory(160) stores the touch input of a first pattern and the number of first touch keys. The number of the first touch keys is used for the touch input of the first pattern. When the touch of a second pattern is inputted in a lock state, a control unit(180) detects the touch input of a third pattern corresponding to the number of the first touch key from the touch input of the second pattern. The second pattern includes the touch input for one or more touch keys. When the detected touch input of the third pattern is similar with the touch input of the first pattern, the control unit releases the lock state. [Reference numerals] (110) Wireless communication unit; (111) Broadcasting reception module; (112) Mobile communication module; (113) Wireless Internet module; (114) Local area communication module; (115) Location information module; (120) A/V input unit; (121) Camera; (122) Microphone; (130) User input unit; (140) Sensing unit; (141) Proximity sensor; (150) Output unit; (151) Display unit; (152) Sound output module; (153) Alarm unit; (154) Haptic module; (155) Projector module; (160) Memory; (170) Interface unit; (180) Control unit; (181) Multimedia module; (190) Power supplying unit

Description

Mobile terminal and its control method {MOBILE TERMINAL AND METHOD FOR CONTROLLING THEREOF}

The present invention relates to a mobile terminal and a control method thereof, and more particularly, to a mobile terminal and a control method of releasing a locked state of a terminal using only a predetermined number of pattern inputs among a plurality of pattern inputs.

The terminal can move And can be divided into a mobile / portable terminal and a stationary terminal depending on whether the mobile terminal is a mobile terminal or a mobile terminal. The mobile terminal can be divided into a handheld terminal and a vehicle mount terminal according to whether the user can directly carry the mobile terminal.

Such a terminal has various functions, for example, in the form of a multimedia device having multiple functions such as photographing and photographing of a moving picture, reproduction of a music or video file, reception of a game and broadcasting, etc. .

In order to support and enhance the functionality of such terminals, it may be considered to improve the structural and / or software parts of the terminal.

Recently, when a user wants to release a lock state of a terminal, a touch input of a predetermined predetermined pattern is frequently used.

However, when releasing the lock state through a touch input of a specific pattern, there is a problem that a touch input of a specific pattern input to another person may be exposed, so an improvement method for this is required.

The present invention has been made to solve the problems of the general technology as described above, an object of the present invention is to provide a function that can safely release the lock state of the terminal by using only a predetermined number of pattern inputs of the plurality of pattern inputs. It is to provide.

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

A mobile terminal according to an embodiment of the present invention for realizing the above object has a touch screen for displaying a plurality of touch keys arranged in a predetermined form, and a first pattern including a touch input to at least one of the plurality of touch keys. A memory for storing the number of first touch keys, which is the number of touch keys used for the touch input and the touch input of the first pattern, and a touch input for at least one of the plurality of touch keys in a locked state. When a touch is input, the touch input of the third pattern corresponding to the number of the first touch keys is detected among the touch inputs of the second pattern, and the detected touch input of the third pattern is the touch input of the first pattern. If it is equal to, may include a control unit for controlling to release the lock state.

The controller may detect a touch input of the third pattern by first scanning a first touch key or a late input touch key among touch keys used for the touch input of the second pattern.

The controller may be configured to display a predetermined visual effect on each of the plurality of touch keys, and the predetermined visual effect may include a color of each of the plurality of touch keys, a pattern of a texture of a surface, a blink, May include size changes and deformations.

The controller may control the positions of the plurality of touch keys to be randomly displayed according to a preset time.

On the other hand, the control method of the mobile terminal according to an embodiment of the present invention for realizing the above object is a touch input of the first pattern including a touch input for at least one of the plurality of touch keys arranged in a predetermined form on the touch screen Storing the first touch key, which is the number of touch keys used for the touch input of the first pattern, and storing a touch input of at least one of the plurality of touch keys in a locked state. Detecting a touch input of a third pattern corresponding to the number of the first touch keys among touch inputs of the second pattern, and detecting the touch input of the detected third pattern by the first pattern Determining whether the touch input is the same as the touch input and when the detected touch input of the third pattern is the same as the touch input of the first pattern, canceling the locked state. May comprise a step.

The mobile terminal according to at least one embodiment of the present invention configured as described above may safely release the locked state of the terminal using only a predetermined number of pattern inputs among a plurality of pattern inputs.

The effects obtained by the present invention are not limited to the above-mentioned effects, and other effects not mentioned can be clearly understood by those skilled in the art from the following description will be.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.
2 is a front perspective view of a mobile terminal associated with one embodiment of the present invention;
3 is a front view of a mobile terminal for explaining an operation state of the mobile terminal according to an embodiment of the present invention.
4 is a flowchart illustrating an example of releasing a locked state of a terminal through a pseudo pattern in accordance with an embodiment of the present invention.
5A, 5B, and 5C illustrate an example of releasing a locked state of a terminal through a pseudo pattern in accordance with an embodiment of the present invention.
6A and 6B illustrate specific examples of failures to attempt to unlock a lock state in connection with one embodiment of the present invention.
7A, 7B, and 7C illustrate examples of pseudo patterns using visual effects in accordance with one embodiment of the present invention.

Hereinafter, a mobile terminal related to the present invention will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

The mobile terminal described in this specification may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), and navigation. 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, etc., except when applicable only to mobile terminals.

Overall configuration

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.

The mobile terminal 100 includes a wireless communication unit 110, an audio / video input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, A controller 170, a controller 180, a power supply 190, and the like. The components shown in FIG. 1 are not essential, and a mobile terminal having more or fewer components may be implemented.

Hereinafter, the components will be described in order.

The wireless communication unit 110 may include one or more modules for enabling wireless communication between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and the network in which the mobile terminal 100 is located. For example, the wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short range communication module 114, and a location information module 115 .

The broadcast receiving module 111 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. The broadcast management server may refer to a server for generating and transmitting broadcast signals and / or broadcast related information, or a server for receiving broadcast signals and / or broadcast related information generated by the broadcast management server and transmitting the generated broadcast signals and / or broadcast related information. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and a broadcast signal in which a data broadcast signal is combined with a TV broadcast signal or a radio broadcast signal.

The broadcast-related information may refer to a broadcast channel, a broadcast program, or information related to 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. For example, it may exist in the form of Electronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB) or Electronic Service Guide (ESG) of Digital Video Broadcast-Handheld (DVB-H).

For example, the broadcast receiving module 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S), a Media Forward Link Only And a Digital Broadcasting System (ISDB-T) (Integrated Services Digital Broadcast-Terrestrial). Of course, the broadcast receiving module 111 may be adapted to other broadcasting systems as well as the digital broadcasting system described above.

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

The wireless Internet module 113 is a module for wireless Internet access, and may be built in or externally attached to the mobile terminal 100. Wireless Internet technologies may include Wireless LAN (Wi-Fi), Wireless Broadband (Wibro), World Interoperability for Microwave Access (Wimax), High Speed Downlink Packet Access (HSDPA), and the like.

The short range communication module 114 refers to a module for short range communication. Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee, and the like can be used as a short range communication technology.

The position information module 115 is a module for obtaining the position of the mobile terminal, and a representative example thereof is a Global Position System (GPS) module.

Referring to FIG. 1, an A / V (Audio / Video) input unit 120 is for inputting an audio signal or a video signal, and may include a camera 121 and a microphone 122. 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 can be displayed on the display unit 151. [

The image frame processed by the camera 121 may be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. [ Two or more cameras 121 may be provided depending on the use environment.

The microphone 122 receives an external sound signal through a microphone in a communication mode, a recording mode, a voice recognition mode, or the like, and processes it as electrical voice data. The processed voice data can be converted into a form that can be transmitted to the mobile communication base station through the mobile communication module 112 when the voice data is in the call mode, and output. Various noise reduction algorithms may be implemented in the microphone 122 to remove noise generated in receiving an external sound signal.

The user input unit 130 generates input data for a user to control the operation of the terminal. The user input unit 130 may include a key pad dome switch, a touch pad (static pressure / capacitance), a jog wheel, a jog switch, and the like.

The sensing unit 140 senses the current state of the mobile terminal 100 such as the open / close state of the mobile terminal 100, the position of the mobile terminal 100, the presence or absence of user contact, the orientation of the mobile terminal, And generates a sensing signal for controlling the operation of the mobile terminal 100. For example, when the mobile terminal 100 is in the form of a slide phone, it may sense whether the slide phone is opened or closed. In addition, whether the power supply unit 190 is supplied with power, whether the interface unit 170 is coupled to the external device may be sensed. Meanwhile, the sensing unit 140 may include a proximity sensor 141.

Furthermore, the sensing unit 140 generates a sensing signal by measuring the ambient noise (for example, 20db) of the mobile terminal 100 or the ambient brightness (for example, 20lm) of the mobile terminal 100 as an illuminance sensor. It is also possible to generate a sensing signal by measuring.

The output unit 150 is for generating an output relating to visual, auditory or tactile sense and includes a display unit 151, an acoustic output module 152, an alarm unit 153, a haptic module 154, 155, and the like.

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

The display unit 151 is a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), a flexible display (flexible) and at least one of a 3D display.

Some of these displays may be transparent or light transmissive so that they can be seen through. This can be referred to as a transparent display, and a typical example of the transparent display is TOLED (Transparent OLED) and the like. The rear structure of the display unit 151 may also be of a light transmission type. With this structure, the user can see an object located behind the terminal body through the area occupied by the display unit 151 of the terminal body.

There may be two or more display units 151 according to the embodiment of the mobile terminal 100. For example, in the mobile terminal 100, a plurality of display portions may be spaced apart from one another, or may be disposed integrally with one another, and may be disposed on different surfaces, respectively.

When the display unit 151 and a sensor for detecting a touch operation (hereinafter, referred to as a touch sensor) form a mutual layer structure (hereinafter referred to as a touch screen), the display unit 151 may be configured in addition to an output device. Can also be used as an input device. The touch sensor may have the form of, for example, a touch film, a touch sheet, a touch pad, or the like.

The touch sensor may be configured to convert a change in a pressure applied to a specific portion of the display unit 151 or a capacitance generated in a specific portion of the display unit 151 into an electrical input signal. The touch sensor can be configured to detect not only the position and area to be touched but also the pressure at the time of touch.

If 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 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.

The proximity sensor 141 may be disposed in an inner region of the mobile terminal or in the vicinity of the touch screen, which is enclosed by the touch screen. The proximity sensor refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or a nearby object without mechanical contact using the force of an electromagnetic field or infrared rays. The proximity sensor has a longer life span than the contact sensor and its utilization is also high.

Examples of the proximity sensor 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. And to detect the proximity of the pointer by the change of the electric field along the proximity of the pointer when the touch screen is electrostatic. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.

Hereinafter, for convenience of explanation, the act of allowing the pointer to be recognized without being in contact with the touch screen so that the pointer is located on the touch screen is referred to as a "proximity touch", and the touch The act of actually touching the pointer on the screen is called "contact touch." The position where the pointer is proximately touched on the touch screen means a position where the pointer is vertically corresponding to the touch screen when the pointer is touched.

The proximity sensor detects a proximity touch and a proximity touch pattern (e.g., a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, a proximity touch movement state, and the like). Information corresponding to the detected proximity touch operation and the proximity touch pattern may be output on the touch screen.

The sound output module 152 may output audio data received from the wireless communication unit 110 or stored in the memory 160 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 module 152 also outputs sound signals related to functions (e.g., call signal reception sound, message reception sound, etc.) performed in the mobile terminal 100. [ The audio output module 152 may include a receiver, a speaker, a buzzer, and the like.

The alarm unit 153 outputs a signal for notifying the occurrence of an event of the mobile terminal 100. Examples of events that occur in the mobile terminal include call signal reception, message reception, key signal input, touch input, and the like. The alarm unit 153 may output a signal for notifying the occurrence of an event in a form other than the video signal or the audio signal, for example, vibration. The video signal or the audio signal may be output through the display unit 151 or the audio output module 152 so that they may be classified as a part of the alarm unit 153.

The haptic module 154 generates various tactile effects that the user can feel. Vibration is a representative example of the haptic effect generated by the haptic module 154. The intensity and pattern of vibration generated by the haptic module 154 can be controlled. For example, different vibrations may be synthesized and output or sequentially output.

In addition to vibration, the haptic module 154 may be configured to provide a pin array that vertically moves with respect to the contact skin surface, a jetting force or suction force of air through an injection or inlet port, grazing to the skin surface, contact of an electrode, electrostatic force, and the like. 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 154 can be implemented not only to transmit the tactile effect through the direct contact but also to allow the user to feel the tactile effect through the muscular sensation of the finger or arm. The haptic module 154 may include two or more haptic modules 154 according to the configuration of the portable terminal 100.

The projector module 155 is a component for performing an image project function using the mobile terminal 100 and is similar to the image displayed on the display unit 151 in accordance with a control signal of the controller 180 Or at least partly display another image on an external screen or wall.

Specifically, the projector module 155 includes a light source (not shown) that generates light (for example, laser light) for outputting an image to the outside, a light source And a lens (not shown) for enlarging and outputting the image at a predetermined focal distance to the outside. Further, the projector module 155 may include a device (not shown) capable of mechanically moving the lens or the entire module to adjust the image projection direction.

The projector module 155 can be divided into a CRT (Cathode Ray Tube) module, an LCD (Liquid Crystal Display) module and a DLP (Digital Light Processing) module according to the type of the display means. In particular, the DLP module may be advantageous for miniaturization of the projector module 151 by enlarging and projecting an image generated by reflecting light generated from a light source on a DMD (Digital Micromirror Device) chip.

Preferably, the projector module 155 may be provided longitudinally on the side, front or back side of the mobile terminal 100. It goes without saying that the projector module 155 may be provided at any position of the mobile terminal 100 as occasion demands.

The memory unit 160 may store a program for processing and controlling the control unit 180 and temporarily store the input / output data (e.g., telephone directory, message, audio, For example. The memory unit 160 may also store the frequency of use of each of the data (for example, each telephone number, each message, and frequency of use for each multimedia). In addition, the memory unit 160 may store data on vibration and sound of various patterns output when the touch is input on the touch screen.

The memory 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), a RAM (Random Access Memory), SRAM (Static Random Access Memory), ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM A disk, and / or an optical disk. The mobile terminal 100 may operate in association with a web storage that performs a storage function of the memory 160 on the Internet.

The interface unit 170 serves as a path for communication with all external devices connected to the mobile terminal 100. The interface unit 170 receives data from an external device or supplies power to each component in the mobile terminal 100 or transmits data to the external device. For example, a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device having an identification module, an audio I / O port, A video input / output (I / O) port, an earphone port, and the like may be included in the interface unit 170.

The identification module is a chip for storing various information for authenticating the use right of the mobile terminal 100 and includes a user identification module (UIM), a subscriber identity module (SIM), a general user authentication module A Universal Subscriber Identity Module (USIM), and the like. Devices with identification modules (hereinafter referred to as "identification devices") can be manufactured in a smart card format. Accordingly, the identification device can be connected to the terminal 100 through the port.

The interface unit may be a passage through which power from the cradle is supplied to the mobile terminal 100 when the mobile terminal 100 is connected to an external cradle, or various command signals input from the cradle by a user may be transferred. It may be a passage that is delivered to the terminal. The various command signals or the power source input from the cradle may be operated as a signal for recognizing that the mobile terminal is correctly mounted on the cradle.

The controller 180 typically controls the overall operation of the mobile terminal. For example, voice communication, data communication, video communication, and the like. The control unit 180 may include a multimedia module 181 for multimedia playback. The multimedia module 181 may be implemented in the control unit 180 or may be implemented separately from the control unit 180. [

The controller 180 may perform a pattern recognition process for recognizing handwriting input or drawing input performed on the touch screen as characters and images, respectively.

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 various embodiments described herein may be embodied in a recording medium readable by a computer or similar device using, for example, software, hardware, or a combination thereof.

According to a hardware implementation, the embodiments described herein include application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), and the like. It may be implemented using at least one of processors, controllers, micro-controllers, microprocessors, and electrical units for performing other functions. The described embodiments may be implemented by the controller 180 itself.

According to the software implementation, embodiments such as the procedures and functions described herein may be implemented as separate software modules. Each of the software modules may perform one or more of the functions and operations described herein. Software code can be implemented in a software application written in a suitable programming language. The software code is stored in the memory 160 and can be executed by the control unit 180. [

Organization description

FIG. 2 is a perspective view of a mobile terminal or a portable terminal according to the present invention, as viewed from the front.

The disclosed mobile terminal 100 has a bar-shaped terminal body. However, the present invention is not limited thereto, and can be applied to various structures such as a slide type, a folder type, a swing type, and a swivel type in which two or more bodies are relatively movably coupled.

The body includes a case (a casing, a housing, a cover, and the like) which forms an appearance. In this embodiment, the case may be divided into a front case 101 and a rear case 102. [ A variety of electronic components are embedded in the space formed between the front case 101 and the rear case 102. At least one intermediate case may be additionally disposed between the front case 101 and the rear case 102. [

The cases may be formed by injecting synthetic resin or may be formed of a metal material, for example, a metal material such as stainless steel (STS) or titanium (Ti).

The display unit 151, the sound output unit 152, the camera 121, the user input units 130/131 and 132, the microphone 122, the interface 170, and the like may be disposed in the front body 101 have.

The display unit 151 occupies most of the main surface of the front case 101. A sound output unit 151 and a camera 121 are disposed in an area adjacent to one end of both ends of the display unit 151 and a user input unit 131 and a microphone 122 are disposed in an area adjacent to the other end. The user input unit 132 and the interface 170 may be disposed on the side surfaces of the front case 101 and the rear case 102. [

The user input unit 130 is operated to receive a command for controlling the operation of the portable terminal 100 and may include a plurality of operation units 131 and 132. The manipulation units 131 and 132 may also be collectively referred to as manipulating portions, and may be employed in any manner as long as the user operates the tactile manner with a tactile feeling.

The contents inputted by the first or second operation unit 131 or 132 may be variously set. For example, the first operation unit 131 receives commands such as start, end, scroll, and the like, and the second operation unit 132 controls the size of the sound output from the sound output unit 152 or the size of the sound output from the display unit 151 To the touch recognition mode of the touch screen.

Front touch

Hereinafter, the operation of the display unit 151 and the touch pad 135 will be described with reference to FIG. 3.

3 is a front view of a portable terminal for explaining an operation state of the portable terminal according to the present invention.

Various types of time information can be displayed on the display unit 151. [ These pieces of information can be displayed in the form of letters, numbers, symbols, graphics, or icons.

At least one of the letters, numbers, symbols, graphics, or icons may be displayed in a predetermined arrangement for inputting such information, thereby being implemented as a keypad. Such a keypad may be referred to as a so-called " virtual keypad ".

3 illustrates inputting of a touch applied to the virtual keypad through the front surface of the terminal body.

The display unit 151 may operate as an entire area or may be divided into a plurality of areas and operated. In the latter case, the plurality of areas can be configured to operate in association with each other.

For example, an output window 151a and an input window 151b are displayed on the upper and lower portions of the display unit 151, respectively. The output window 151a and the input window 151b are areas allocated for outputting or inputting information, respectively. In the input window 151b, a virtual keypad 151c is displayed in which a number for inputting a telephone number or the like is displayed. When the virtual keypad 151c is touched, numbers and the like corresponding to the touched virtual keypad are displayed on the output window 151a. When the first operation unit 131 is operated, call connection to the telephone number displayed on the output window 151a is attempted.

The display unit 151 or the touch pad 135 may be configured to receive a touch input by scrolling, as well as the input method described in the above embodiments. The user can move a cursor or a pointer located on an object displayed on the display unit 151, for example, an icon or the like, by scrolling the display unit 151 or the touch pad 135. [ Further, when the finger is moved on the display portion 151 or the touch pad 135, the path along which the finger moves may be visually displayed on the display portion 151. [ This will be useful for editing the image displayed on the display unit 151. [

One function of the terminal may be executed in response to a case where the display unit 151 (touch screen) and the touch pad 135 are touched together within a predetermined time range. In the case of being touched together, there may be a case where the user clamps the terminal body using the thumb and index finger. The one function may be activation or deactivation of the display unit 151 or the touch pad 135, for example.

Meanwhile, a graphic in the form of an arrow or a finger for pointing a specific object or selecting a menu on the display unit is called a pointer or a cursor.

However, in the case of a pointer, it often means a finger or a stylus pen for a touch operation or the like.

Therefore, in this specification, a graphic displayed on the display unit is referred to as a cursor, and a physical means for performing a touch, a proximity touch, and a gesture, such as a finger or a stylus pen, is referred to as a pointer.

For convenience of explanation, it is assumed that the mobile terminal referred to below includes at least one of the components shown in FIG. In particular, it is assumed that a mobile terminal to which the present invention is applicable has a touch screen.

Recently, when a user wants to release a lock state of a terminal, a touch input of a predetermined predetermined pattern is frequently used.

However, when releasing the lock state through a touch input of a specific pattern, there is a security problem that a touch input of a specific pattern input to another person may be exposed. Therefore, a touch input of a pattern that can enhance security in addition to a predetermined pattern is required.

The present invention provides a method of first inputting a dummy pattern prior to the touch input of a specific pattern for unlocking the lock state in order to solve the aforementioned security problem.

That is, when the number of valid touch inputs is predetermined and a touch of a specific pattern is input from the user, the controller 180 ignores the touch input of the invalid pattern as a dummy pattern and touch input of the valid pattern. Use only to determine whether to release the lock state of the terminal.

In the case of using a dummy pattern input, the number of cases for a specific pattern of touch input that the user can use for unlocking is increased, thereby ensuring an effect of enhanced security.

The dummy pattern touch input may be used as a touch input of a dummy code pattern, a touch input of a pseudo pattern, a touch input of a pseudo code pattern, and the like. Hereinafter, to avoid confusion, the term is uniformly used as a touch input of a pseudo pattern.

Details of the present invention will be described with reference to FIG. 4.

4 is a flowchart illustrating an example of releasing a locked state of a terminal through a pseudo pattern in accordance with an embodiment of the present invention.

First, the user may set a touch input of a specific pattern for releasing the locked state of the terminal (S410).

The touch input of a specific pattern may be a closed curve type in which at least one of a straight line, a line bent at a predetermined angle, a branch line, and a curve is mixed.

After the touch input of a specific pattern for releasing the locked state is set, the number of additional valid touch inputs from the user may be set (S420).

That is, when a plurality of touches are input from the user, the number of touch inputs that can be processed as valid among the plurality of touch inputs is set.

In this case, the order of valid touch inputs may be set together with the number of valid touch inputs. For example, when the number of valid touch inputs is set to four, whether the four valid touch inputs are four inputs first input or four inputs last input may be set together.

In addition, in FIG. 4, for convenience, it is described that step S420 is performed after step S410, but the order of steps S410 and S420 may be reversed. That is, the number of valid touch inputs may be set in advance (S420), and a touch input of a specific pattern for releasing the locked state of the terminal may be set (S410).

Thereafter, a touch of a predetermined pattern may be input from the user (S430).

When a touch of a predetermined pattern is input from the user, the controller 180 detects a valid touch input among touch inputs of the predetermined pattern (S440).

That is, when a touch of a predetermined pattern including a plurality of touch inputs is input from the user, the controller 180 detects a touch input corresponding to a preset number of valid touch inputs. Herein, a touch input except a valid touch input among a plurality of touch inputs input from a user is a pseudo pattern touch input.

For example, when the last four touch inputs are preset as valid touch inputs and ten touches are input from the user, the controller 180 detects only the last four touch inputs among the ten touch inputs. In this case, the remaining six touch inputs will be treated as a pseudo pattern touch input.

If a valid touch input is detected, the controller 180 determines whether the detected valid touch input is the same as a touch input of a predetermined specific pattern (S450).

If the detected valid touch input is different from the preset touch input of the predetermined pattern, the process returns to step S430 in which the touch of the predetermined pattern is input from the user.

In addition, when the detected valid touch input is the same as the preset touch input of the specific pattern, the controller 180 controls to release the current lock state of the terminal (S460).

In the above description, only the method of releasing the locked state of the terminal using a pseudo pattern touch input is merely an exemplary content of the present invention. That is, a function such as directly executing another specific application or calling a specific menu may be provided by using a pseudo pattern touch input.

Therefore, according to the present invention, a user may implement a variety of specific touch inputs using a pseudo pattern touch input, thereby ensuring user privacy.

5A, 5B, and 5C illustrate an example of releasing a locked state of a terminal through a pseudo pattern in accordance with an embodiment of the present invention.

In FIGS. 5A, 5B, and 5C, nine touch keys 510, 520, 530, 540, 550, 560, 570, 580, and 590 are provided on the touch screen, and a specific pattern for releasing the locked state of the terminal using the touch screen is provided. Assume that touch of is input.

In addition, in FIGS. 5A, 5B, and 5C, it is assumed that an input of a pattern in which a user touches 510, 520, 530, 540, and 550 touch keys sequentially is set as a touch input for releasing a locked state of the terminal.

5A, 5B and 5C, it is assumed that the last five touch key inputs input from the user are set as valid touch inputs.

First, referring to FIG. 5A, a user sequentially touches and inputs touch keys 590, 580, 510, 520, 530, 540, and 550.

In this case, the controller 180 detects a valid touch input among touch inputs input from the user. That is, only the last five inputted 510, 520, 530, 540, 550 touch key inputs among the 590, 580, 510, 520, 530, 540, and 550 touch keys are detected as valid touch inputs.

Subsequently, the controller 180 compares the detected 510, 520, 530, 540, and 550 touch key inputs with the touch input for releasing the locked state, and in FIG. 5A, since the set touch input and the detected effective touch input are the same as each other, the controller The control unit 180 releases the lock state of the terminal.

In addition, referring to FIG. 5B, a user sequentially touches and inputs 570, 560, 590, 580, 510, 520, 530, 540, and 550 touch keys.

In this case, the controller 180 detects a valid touch input among touch inputs input from the user. That is, only the last five inputted 510, 520, 530, 540, 550 touch key inputs among the 570, 560, 590, 580, 510, 520, 530, 540, 550 touch key inputs are detected as valid touch inputs.

Subsequently, the controller 180 compares the detected 510, 520, 530, 540, and 550 touch key inputs with a touch input for releasing a locked state, and in FIG. 5B, since the set touch input and the detected valid touch input are the same as each other, the controller The control unit 180 releases the lock state of the terminal.

In addition, referring to FIG. 5C, a user sequentially touches and inputs 570, 550, 540, 560, 580, 510, 520, 530, 540, and 550 touch keys.

In this case, the controller 180 detects a valid touch input among touch inputs input from the user. That is, only the last five 510, 520, 530, 540, 550 touch key inputs among the 570, 550, 540, 560, 580, 510, 520, 530, 540, 550 touch key inputs are detected as valid touch inputs. do.

Thereafter, the controller 180 compares the detected 510, 520, 530, 540, and 550 touch key inputs with a touch input for releasing a locked state, and in FIG. 5C, since the set touch input and the detected valid touch input are the same as each other, the controller The control unit 180 releases the lock state of the terminal.

6A and 6B illustrate examples of failure of an attempt to release a lock state in relation to an embodiment of the present invention.

In Figs. 6A and 6B, the assumption in Fig. 5 remains the same.

First, referring to FIG. 6A, a user sequentially touches and inputs 510, 520, 530, 540, 550, and 570 touch keys.

In this case, the controller 180 detects a valid touch input among touch inputs input from the user. That is, only the last five inputted 520, 530, 540, 550, and 570 touch key inputs among the 510, 520, 530, 540, 550, and 570 touch keys are detected as valid touch inputs.

Subsequently, the controller 180 compares the detected 520, 530, 540, 550, and 570 touch key inputs with a touch input for releasing a locked state. In FIG. 6A, since the set touch input and the detected valid touch input are not identical to each other, The controller 180 controls the lock state of the terminal not to be released.

In addition, referring to FIG. 6B, a user sequentially touches and inputs 580, 510, 520, 530, 540, 550, 570, 590, and 560 touch keys.

In this case, the controller 180 detects a valid touch input among touch inputs input from the user. That is, only the last five 540, 550, 570, 590, and 560 touch key inputs that are input among the 580, 510, 520, 530, 540, 550, 570, 590, and 560 touch keys are detected as valid touch inputs.

Subsequently, the controller 180 compares the detected 540, 550, 570, 590, and 560 touch key inputs with a touch input for releasing a locked state. In FIG. 6B, since the set touch input and the detected valid touch input are not identical to each other, The controller 180 controls the lock state of the terminal not to be released.

Meanwhile, according to an embodiment of the present invention, a method of changing the position of a plurality of touch keys to which a visual effect is applied may be additionally used in a method of using a pseudo pattern for more efficient user security.

That is, whenever the terminal is switched from the sleep state to the active state, the positions of the plurality of touch keys given the color on the touch screen may be changed to random.

In this case, the sleep state of the terminal means that the terminal enters the standby state when the terminal is not used for a preset period, and the active state of the terminal corresponds to a specific key or the terminal in the sleep state. It means a state in which the terminal enters a usable state again by inputting a touch of a specific pattern.

In addition, the applied visual effect may be realized through the color of the touch key, the pattern of the texture of the surface, the blinking, the size change and the deformation.

This will be described in detail with reference to FIGS. 7A, 7B and 7C.

7A, 7B and 7C are diagrams showing examples of pseudo patterns using visual effects in accordance with an embodiment of the present invention.

In FIGS. 7A, 7B and 7C, nine touch keys 710, 720, 730, 740, 750, 760, 770, 780, 790 are provided on the touch screen, and each touch key has a different color visual effect. It is assumed that a touch of a specific pattern for releasing the locked state of the terminal is input using the same.

7A, 7B and 7C, the 710 touch key is brown, the 720 touch key is red, the 730 touch key is orange, the 740 touch key is green, the 750 touch key is purple, the 760 touch key is green, and the 770 touch key is blue. The touch key 780 is assumed to be yellow, and the touch key 790 is set to light blue.

In addition, in FIGS. 7A, 7B, and 7C, a pattern in which a user touches 710 (brown), 720 (red), 730 (orange), 740 (green), and 750 (purple) touch keys in sequence is locked in the terminal. Assume that it is set as a touch input for releasing.

7A, 7B, and 7C, it is assumed that the last five touch key inputs input from the user are set as valid touch inputs.

First, referring to FIG. 7A, a user sequentially touches 710 (brown), 720 (red), 730 (orange), 740 (green), and 750 (purple) touch keys.

In this case, the controller 180 detects a valid touch input among touch inputs input from the user. 710 (brown), 720 (red), 730 (orange), 740 (green), or 750 (purple) touch key, the last five 710 (brown), 720 (red), 730 (orange) Only 740 (green) and 750 (purple) touch key inputs are detected as valid touch inputs.

Thereafter, the controller 180 compares the detected 710 (brown), 720 (red), 730 (orange), 740 (green), and 750 (purple) touch key inputs with a touch input for releasing a locked state, and FIG. 7A. Since the set touch input and the detected valid touch input are the same as each other, the controller 180 controls the terminal to release the locked state.

Meanwhile, when the terminal of FIG. 7A enters a sleep state and then becomes an active state, the position of the touch key is randomly displayed as shown in FIG. 7B.

At this time, the user touches 760 (yellow), 750 (purple), 720 (red), 770 (blue), 710 (brown), 740 (green), and 780 (yellow) touch keys in sequence.

In this case, the controller 180 detects a valid touch input among touch inputs input from the user. That is, the last five 720 (red) inputs of 760 (Yellow green), 750 (purple), 720 (red), 770 (blue), 710 (brown), 740 (green), and 780 (yellow) touch keys Only 770 (blue), 710 (brown), 740 (green), and 780 (yellow) touch key inputs are detected as valid touch inputs.

Thereafter, the controller 180 compares the detected 720 (red), 770 (blue), 710 (brown), 740 (green), and 780 (yellow) touch key inputs with a touch input for releasing a locked state, and FIG. 7B. Since the set touch input and the detected valid touch input are different from each other, the controller 180 controls such that the locked state of the terminal is not released.

Meanwhile, when the terminal of FIG. 7A or 7B enters a sleep state and is switched to an active state, the position of the touch key is randomly displayed as shown in FIG. 7C.

At this time, the user touches the 770 (blue), 760 (yellow), 780 (yellow), 710 (brown), 720 (red), 730 (orange), 740 (green), and 750 (purple) touch keys in sequence. I'm typing.

In this case, the controller 180 detects a valid touch input among touch inputs input from the user. 770 (blue), 760 (yellow), 780 (yellow), 710 (brown), 720 (red), 730 (orange), 740 (green), 750 (purple) Only 710 (brown), 720 (red), 730 (orange), 740 (green) and 750 (purple) touch key inputs are detected as valid touch inputs.

Thereafter, the controller 180 compares the detected 710 (brown), 720 (red), 730 (orange), 740 (green), and 750 (purple) touch key inputs with the touch inputs for releasing the locked state, and FIG. 7C. Since the set touch input and the detected valid touch input are the same as each other, the controller 180 controls the terminal to release the locked state.

Therefore, by using a method of using a pseudo pattern, a method of changing the position of a plurality of touch keys that are visually effected can be used to implement more various types of touch inputs, thereby enhancing the user's security. Guaranteed.

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

The mobile terminal described above can be applied to not only the configuration and method of the embodiments described above but also all or some of the embodiments may be selectively combined so that various modifications may be made to the embodiments It is possible.

Claims (5)

A touch screen displaying a plurality of touch keys arranged in a predetermined form;
A memory for storing the first touch key number, the number of touch keys used for a touch input of a first pattern including a touch input to at least one of the plurality of touch keys and the touch input of the first pattern; And
When a touch of a second pattern including a touch input to at least one of the plurality of touch keys is input in the locked state, the touch of the third pattern corresponding to the number of the first touch keys among the touch inputs of the second pattern is input. And a controller configured to detect an input and to release the locked state when the detected touch input of the third pattern is the same as the touch input of the first pattern. The method of claim 1,
The control unit detects a touch input of the third pattern by first scanning a first touch key or a late input touch key among touch keys used for the touch input of the second pattern. The method of claim 1,
The controller controls a predetermined visual effect to be displayed on each of the plurality of touch keys.
The predetermined visual effect includes a color of each of the plurality of touch keys, a pattern of a texture of a surface, a blink, a change in size, and a deformation. The method of claim 3,
And the controller controls the positions of each of the plurality of touch keys to be changed and displayed at random according to a preset time. Storing a touch input of a first pattern including a touch input for at least one of a plurality of touch keys arranged in a predetermined form on the touch screen;
Storing the number of first touch keys, the number of touch keys used for the touch input of the first pattern;
Inputting a touch of a second pattern including a touch input to at least one of the plurality of touch keys in a locked state;
Detecting a touch input of a third pattern corresponding to the number of the first touch keys among the touch inputs of the second pattern;
Determining whether the detected touch input of the third pattern is the same as the touch input of the first pattern; And
If the detected touch input of the third pattern is the same as the touch input of the first pattern, releasing the locked state.

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