KR20120020662A - Mobile terminal and method for unlocking thereof - Google Patents

Abstract

PURPOSE: A mobile terminal and an unlocking method are provided to unlock by a two dimensional or a three dimensional pattern using touch time. CONSTITUTION: A touch screen receives an unlocking pattern input for unlocking. A control unit(180) receives a three dimensional pattern or a two dimensional pattern using touch time on the touch screen. The control unit compares an input pattern with a predefined pattern. The control unit unlocks or keeps the locking state based on the comparison result. The control unit recognizes the pattern recognition based on the following information: a pointer location or adjacent location, adjacent distance, adjacent or touch holding time, and a moving path.

Description

Mobile terminal and how to unlock it {MOBILE TERMINAL AND METHOD FOR UNLOCKING THEREOF}

The present invention relates to a mobile terminal for unlocking through pattern recognition in a terminal having a touch screen and a method of unlocking the same.

Terminals, such as personal computers, laptops, mobile phones, etc., have diversified functions, for example, multimedia devices having complex functions such as taking pictures or videos, playing music or video files, playing games, and receiving broadcasts. It is implemented in the form of (multimedia player).

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

Recently, as the use of a terminal having a touch screen increases, a pattern lock function is provided instead of a password when releasing a lock mode (touch screen hold state) of the terminal. However, the conventional pattern lock function connects four or more nodes among the nine nodes displayed in the pattern input window, thereby setting the pattern lock using a pattern formed. Therefore, since the usage trace input by the user remains on the display screen and is exposed to others or a pattern is formed through a simple node connection, security is weak. Therefore, efforts are being made to provide an improved security level unlocking function.

The present invention has been made to solve the above problems, the present invention is a mobile terminal for unlocking through a two-dimensional pattern or a three-dimensional pattern using a touch time in a terminal equipped with a touch screen and its unlocking method It is to provide.

According to an aspect of the present invention, there is provided a method of unlocking a mobile terminal, the method including: setting a three-dimensional pattern or a two-dimensional pattern using a touch time for performing the unlocking; Recognizing a pattern input on the touch screen, and comparing the recognized pattern and the set pattern, and releasing or maintaining the lock state according to the comparison result.

In addition, the mobile terminal according to an embodiment of the present invention receives a touch screen for receiving a lock release pattern for performing a lock release and a two-dimensional pattern using a three-dimensional pattern or a touch time on the touch screen in a locked state. And a controller configured to compare the input pattern with a preset pattern and release or maintain the locked state according to the comparison result.

At least one embodiment of the present invention configured as described above may provide an improved security level since unlocking is performed through a two-dimensional or three-dimensional pattern using a touch time in a terminal having a touch screen. .

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.
2 is a conceptual diagram for explaining a proximity distance of a proximity sensor.
3 is a flowchart illustrating a method of unlocking a mobile terminal according to an embodiment of the present invention.
4A and 4B are screens for registering a lock release pattern of a mobile terminal according to one embodiment of the present invention;
5A and 5B are examples illustrating a three-dimensional pattern input of a mobile terminal according to an embodiment of the present invention.
6 is an example of unlocking a mobile terminal associated with one embodiment of the present invention.
7 is another example illustrating a unlocking pattern of a mobile terminal according to an 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 herein may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), navigation, and the like. 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, and the like, except when applicable only to mobile terminals.

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 A / V input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, and an interface. The unit 170, the controller 180, and the power supply unit 190 may be included. The components shown in FIG. 1 are not essential, so that 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 that enable wireless communication between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and a 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 center through a broadcast channel.

The broadcast channel may include a satellite channel and a terrestrial channel. The broadcast center may refer to 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 related 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. 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).

The broadcast receiving module 111 may include, for example, Digital Multimedia Broadcasting-Terrestrial (DMB-T), Digital Multimedia Broadcasting-Satellite (DMB-S), Media Forward Link Only (MediaFLO), and Digital Video Broadcast (DVB-H). Digital broadcast signals can be received using digital broadcasting systems such as Handheld and Integrated Services Digital Broadcast-Terrestrial (ISDB-T). Of course, the broadcast receiving module 111 may be configured to be suitable for not only the above-described digital broadcasting system but also other broadcasting systems.

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 a wireless signal with 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 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. 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. As a short range communication technology, Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and the like may be used.

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

Referring to FIG. 1, the A / V 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 may 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 according to the use environment.

The microphone 122 receives an external sound signal by a microphone in a call mode, a recording mode, a voice recognition mode, etc., and processes the external sound signal into 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. The microphone 122 may implement various noise removing algorithms for removing noise generated in the process of receiving an external sound signal.

The user input unit 130 generates input data for the 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 detects the current state of the mobile terminal 100 such as the open / closed 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, the acceleration / deceleration of the mobile terminal, and the like. To generate a sensing signal for controlling the operation of the mobile terminal 100. For example, if 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. The sensing unit 140 may include a proximity sensor 141.

The output unit 150 is used to generate an output related to sight, hearing, or tactile sense, and includes a display unit 151, an audio output module 152, an alarm unit 153, and a haptic module 154. Can be.

The display unit 151 displays (outputs) information processed by the mobile terminal 100. For example, when the mobile terminal is in a call mode, the mobile terminal displays a user interface (UI) or a graphic user interface (GUI) related to the call. When the mobile terminal 100 is in a video call mode or a shooting mode, the mobile terminal 100 displays a photographed and / or received image, a UI, or a GUI.

The display unit 151 includes 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). and at least one of a 3D display.

Some of these displays can be configured to be transparent or light transmissive so that they can be seen from the outside. This may be referred to as a transparent display. A representative example of the transparent display is TOLED (Transparant OLED). The rear structure of the display unit 151 may also be configured as a light transmissive structure. With this structure, the user can see the object located behind the terminal body through the area occupied by the display unit 151 of the terminal body.

Two or more display units 151 may exist according to the implementation form of the mobile terminal 100. For example, a 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.

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, for example, a form of a touch film, a touch sheet, a touch pad, or the like.

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

Referring to FIG. 1, a proximity sensor 141 may be disposed in an inner region of a mobile terminal surrounded by the touch screen or near 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 an object present in the vicinity without using a mechanical contact by using an electromagnetic force or infrared rays. Proximity sensors have a longer life and higher utilization than touch sensors.

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. When the touch screen is capacitive, the touch screen is configured to detect the proximity of the pointer by the change of the electric field according to the proximity of the pointer. 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 proximity touch is performed by the pointer on the touch screen refers to a position where the pointer is perpendicular to the touch screen when the pointer is in proximity proximity.

The proximity sensor detects 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). Information corresponding to the sensed proximity touch operation and 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 may also output a sound signal related to a function (eg, a call signal reception sound, a message reception sound, etc.) performed by the mobile terminal 100. The sound output module 152 may include a receiver, a speaker, a buzzer, and the like.

The alarm unit 153 outputs a signal for notifying occurrence of an event of the mobile terminal 100. Examples of events occurring in the mobile terminal include call signal reception, message reception, key signal input, and touch input. The alarm unit 153 may output a signal for notifying occurrence of an event in a form other than a video signal or an 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 151 and 152 may be classified as 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 may be 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 may not only deliver the haptic effect through direct contact, but also may implement the user to feel the haptic effect through a muscle sense such as a finger or an arm. The haptic module 154 may be provided with two or more according to the configuration aspect of the mobile terminal 100.

The memory 160 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 160 may store data regarding vibration and sound of various patterns output when a touch input on the touch screen is performed.

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), RAM (Random Access Memory, RAM), Static Random Access Memory (SRAM), Read-Only Memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Programmable Read-Only Memory (PROM), Magnetic Memory, Magnetic It may include a storage medium of at least one type of disk, 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 passage with all external devices connected to the mobile terminal 100. The interface unit 170 receives data from an external device, receives power, transfers the power to each component inside the mobile terminal 100, or transmits the data inside the mobile terminal 100 to an 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 that stores various types of information for authenticating the use authority of the mobile terminal 100, and includes a user identification module (UIM), a subscriber identification module (SIM), and a universal user authentication module ( 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 170 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 commands input from the cradle by a user. The signal may be a passage for transmitting to the mobile terminal. Various command signals or power input from the cradle may be operated as signals 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, perform related control and processing for voice calls, data communications, video calls, and the like. The controller 180 may include a multimedia module 181 for playing multimedia. The multimedia module 181 may be implemented in the controller 180 or may be implemented separately from the controller 180.

The controller 180 may perform a pattern recognition process for recognizing a writing input or a drawing input performed on the touch screen as text and an image, 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.

Various embodiments described herein may be implemented 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 functions and operations described herein. Software code can be implemented in a software application written in a suitable programming language. The software code may be stored in the memory 160 and executed by the controller 180.

2 is a conceptual diagram illustrating a proximity distance of a proximity sensor.

As illustrated in FIG. 2, when a pointer such as a user's finger or pen approaches the touch screen, the proximity sensor 141 disposed in or near the touch screen detects this and outputs a proximity signal.

The proximity sensor 141 may be configured to output different proximity signals according to vertical distances (hereinafter, referred to as "proximity distances") between the proximity touched pointer and the touch screen.

In FIG. 2, for example, a cross section of a touch screen on which proximity sensors capable of sensing three proximity distances is disposed. Of course, a proximity sensor that detects less than three or more than four proximity distances is also possible.

Specifically, when the pointer is completely in contact with the touch screen (d0), it is recognized as a contact touch. When the pointer is positioned below the distance d1 on the touch screen, the pointer is recognized as a proximity touch of a first proximity distance. When the pointer is spaced apart from the distance d1 or more and less than d2 on the touch screen, the pointer is recognized as a proximity touch of a second proximity distance. When the pointer is spaced apart from the d2 distance by more than d3 distance on the touch screen, the pointer is recognized as a proximity touch of a third proximity distance. When the pointer is located at a distance greater than or equal to d3 on the touch screen, the proximity touch is recognized as released.

Accordingly, the controller 180 may recognize the proximity touch as various input signals according to the proximity distance and the proximity position of the pointer, and perform various operation control according to the various input signals.

Hereinafter, embodiments related to a method of releasing a terminal lock (touch screen lock) in a terminal configured as described above will be described in detail with reference to the accompanying drawings.

In the embodiments related to the present invention, the terminal locking function may be used to prevent a malfunction caused by an unintended touch occurring while the user does not use the touch screen in a terminal having a touch screen or to prevent another person from using the user's terminal. will be. A terminal employing such a device lock function sets a touch screen hold so that the touch screen is not activated even when a touch is input on the touch screen when the touch screen is not used, and when the touch screen is used, the touch screen is set according to the unlock password. Unlock to activate the touchscreen.

The touch screen is a movement pattern that is formed when the user moves a pointer such as a finger to or touches the proximity or touch position, proximity distance, proximity or touch holding time, proximity or touch. Path) and the like.

The controller 180 locks or unlocks the touch screen according to a user input or preset setting information. For example, when the automatic lock function is set, the controller 180 locks the touch screen when there is no input for a predetermined time on the touch screen. When the touch screen lock state is received, the controller 180 requests input of an unlock password. When the user inputs an unlock password for the request, the controller 180 checks whether the input unlock password matches the preset unlock password. The controller 180 unlocks the touch screen when the input unlock password matches the preset unlock password. If the input unlock password does not match the preset unlock password, the controller 180 resets the touch screen lock state. Keep it.

The unlock password includes a two-dimensional pattern or a three-dimensional pattern using a touch time generated by a touch or proximity of a pointer detected on a touch screen. The two-dimensional pattern using the touch time is formed by combining a movement pattern that is formed as the pointer moves with a touch held on a touch screen, and a time that is held by a predetermined node on the movement pattern. The three-dimensional pattern is formed by a combination of a proximity distance and a proximity position of the pointer, a proximity holding time, and a movement pattern (path) formed by moving the pointer to a proximity state.

The memory 160 stores an unlock password (unlock pattern) set (registered) when the touch screen lock function is set. That is, the two-dimensional pattern or the three-dimensional pattern using the touch time set in advance by the user as an unlock password is stored in the memory 160.

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

Referring to FIG. 3, the controller 180 sets a three-dimensional pattern or a two-dimensional pattern using a touch time as an unlock password for performing a touch screen unlock (S101). For example, the controller 180 executes a lock release pattern setting function according to a user input. The lock release pattern setting function registers a lock release pattern for user authentication when the touch screen is unlocked. In addition, when setting the lock release pattern, the controller 180 may set a touch screen lock (screen lock) function according to a user input, and in addition to the screen lock (terminal lock) by function (eg, camera, web browser, outgoing call, international call) You can also set the lock to information (phone book, content box, call history, message box, memo, etc.) or by information.

After setting the unlock password, the controller 180 activates the touch screen and detects the input of the unlock pattern on the touch screen when receiving the lock release request in the touch screen lock state (S102 and S103). For example, when a user inputs a hold key located at one side of the terminal, the controller 180 recognizes the lock screen as a lock release request. The controller 180 displays a pattern input window for inputting a unlock pattern on the touch screen. When the lock release pattern is input to the pattern input window, the controller 180 recognizes the input lock release pattern.

The controller 180 checks whether the detected lock release pattern matches the set lock release pattern (S104). That is, the controller 180 checks whether the pattern input in the current pattern input window (pattern input area) is the same as the pattern set in step S101.

As a result of the check, if the detected lock release pattern matches the set lock release pattern, the controller 180 releases the touch screen lock and activates the touch screen (S105).

If the detected lock release pattern does not match the set lock release pattern, the controller 180 maintains the lock state of the touch screen (S106). In this case, the controller 180 may output a warning sound or a warning message indicating that the detected lock release pattern does not match the set lock release pattern.

4A and 4B illustrate a lock release pattern registration screen of a mobile terminal according to an embodiment of the present invention.

First, when the lock release pattern setting menu is selected by the user, the controller 180 executes the selected lock release pattern setting menu, and displays an execution screen as shown in FIG. 4A on the touch screen. The controller 180 arranges and displays a plurality of nodes for inputting the unlock pattern in a pattern input area. The number of nodes displayed in the pattern input area may be set by the user. For example, when the user selects a 4 × 4 node arrangement, the controller 180 displays 16 nodes arranged in 4 × 4 in the pattern input area. The user inputs a pattern for connecting (passing) at least a predetermined number of nodes among the displayed plurality of nodes. In addition, different times may be input for holding a touch at a node on the pattern.

In other words, when a touch of the pointer is detected in the pattern input area, the controller 180 senses the touch start point, the touch end point, the moving path between the touch start point and the touch end point, and the touch holding in the node through the sensing unit 140. It acquires information such as time and recognizes the pattern input to the pattern input area.

Here, the controller 180 measures a holding time when a touch of a touch is detected at a predetermined node, and changes the color of the corresponding node or displays an arrow on the edge of the node according to the holding time so that the user recognizes the flow of time. Do it. In addition, the controller 180 may visually provide fun to the user by using a flash effect on the corresponding node according to the holding time.

When recognition of the pattern input to the pattern input area is completed, the controller 180 displays the recognized pattern on the display unit 151 as shown in FIG. 4B. As shown in FIG. 4B, the controller 180 visually displays a node passed by the pointer, a moving direction, a holding time at the node, and the like. Therefore, when the user checks the pattern information displayed on the display unit and selects the 'Continue' icon, the controller 180 requests to input the input pattern again, and if the pattern is input again, whether the pattern is the same as the previously input pattern. Check it. If the re-entered pattern and the previously input pattern are the same as the check result, the controller 180 sets the corresponding pattern as the unlock pattern. On the other hand, if the re-entered pattern does not match the previously input pattern, the controller 180 outputs a warning sound and / or a warning message indicating that the re-entered pattern does not match the previously input pattern.

In addition, the controller 180 activates the touch screen lock function when the setting of the lock release pattern is completed. For example, the controller 180 locks the touch screen when a touch input does not occur for a predetermined time on the touch screen. Alternatively, the controller 180 switches the touch screen to the locked state when the lock button of the user input unit 130 is input.

5A and 5B illustrate an example of inputting a 3D pattern of a mobile terminal according to an embodiment of the present invention.

Referring to FIG. 5A, the controller 180 enters a setting mode for setting a lock release pattern for unlocking a touch screen according to a user input. When entering the setting mode, the controller 180 displays the pattern setting cube on the display screen. The pattern setting cube is arranged in the (x, y, z) axis when composed of a plurality of hexagon blocks.

If the user places the pointer at a point perpendicular to the block at (x, y) = (2, 1), moves the pointer close to the touch screen at a third proximity, and then holds the pointer for a predetermined time, the controller 180 The block located at (x, y, z) = (2, 1, 1) is recognized as selected and the color of the block is changed. Therefore, the user can recognize the selection of the block as the color of the block changes.

When the user inputs a predetermined pattern through the proximity touch input, the controller 180 combines the proximity distance of the pointer, the proximity position, the proximity movement pattern (path), the holding time at the predetermined proximity position (block), and the like. Recognize.

When the recognition of the pattern is completed, the controller 180 displays the recognized pattern on the display screen as shown in FIG. 5B. When the user checks the pattern displayed on the display screen and then inputs a new pattern again, the user selects the 'retry' icon and the controller 180 displays the pattern as shown in FIG. 5A so that the user can input the new pattern again. Display the configuration cube.

Meanwhile, when the user selects the 'continue' icon after checking the pattern displayed on the display screen and sets the unlock pattern as the checked pattern, the controller 180 once again to confirm the input pattern. A pattern setting cube is displayed on the touch screen to input the input pattern. The controller 180 recognizes a re-input pattern that is input through the proximity touch on the pattern setting cube, checks whether the re-input pattern matches a previously input pattern, and then re-enters the pattern previously. If it matches the input pattern, the controller 180 sets a lock release pattern to the input pattern.

If the re-input pattern does not match the previously input pattern, the controller 180 outputs a warning sound or a warning message.

6 illustrates an example of unlocking a mobile terminal according to an embodiment of the present invention.

First, when the lock release button of the user input unit 130 is operated by the user in the touch screen lock state, the controller 180 detects the manipulation of the lock release button and displays a lock release pattern input screen on the touch screen (a ). As shown in FIG. 6A, the controller 180 arranges and displays the pattern nodes in the pattern input area of the touch screen.

The controller 180 recognizes the input pattern when the pattern is input to the pattern input area as shown in FIG. 6 (b). That is, the controller 180 senses a touch start position (point), a touch end position (point), a touch movement pattern, a holding time at a predetermined node, and recognizes the input pattern based on the sensed information.

In addition, the controller 180 checks whether the recognized pattern matches a preset unlock pattern. As a result of the check, if the recognized pattern matches the preset unlock pattern, the controller 180 unlocks the touch screen (c). In other words, if the lock release pattern input by the user matches the preset lock release pattern, the controller 180 releases the lock state so that the terminal can be used.

Meanwhile, if the recognized pattern does not match the preset unlock pattern, the controller 180 outputs a warning sound through the sound output module 152 or displays a warning message on the display screen. And warning messages can be implemented to be output together.

In addition to the unlock pattern disclosed in the above embodiments, it is possible to register in various three-dimensional patterns. For example, as shown in FIG. 7, it is also possible to set the unlocking pattern to rotate a predetermined surface of the cube so that a specific shape such as a cross is formed on one surface of the cube.

According to an embodiment of the present invention, the above-described method may 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 the computer-readable medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, and the like, and also implemented in the form of a carrier wave (for example, transmission over the Internet) . In addition, the computer may include the controller 180 of the terminal.

The above-described terminal is not limited to the configuration and method of the above-described embodiments, the embodiments may be configured by selectively combining all or a part of the embodiments so that various modifications can be made have.

100: mobile terminal 110: wireless communication unit
120: A / V input unit 121: camera
130: user input unit 140: sensing unit
150: output unit 160: memory
170: interface unit 180: control unit
190: power supply

Claims (5)

Setting a two-dimensional pattern using a three-dimensional pattern or a touch time for performing the unlocking;
Recognizing a pattern input on a touch screen in a locked state after setting the pattern;
Comparing the recognized pattern with the set pattern, and releasing or maintaining the locked state according to the comparison result. The method of claim 1, wherein the three-dimensional pattern,
A method of unlocking a mobile terminal, comprising a combination of a proximity distance and a movement pattern of a pointer. The method of claim 1, wherein the two-dimensional pattern using the touch time,
The unlocking method of the mobile terminal, characterized in that formed by a combination of the movement pattern of the pointer and the time to hold at the node on the movement pattern. A touch screen for receiving an unlock pattern for unlocking;
A control unit for receiving a 3D pattern or a 2D pattern using a touch time on the touch screen in a locked state, comparing the input pattern with a preset pattern, and releasing or maintaining the locked state according to the comparison result; Mobile terminal, characterized in that. 5. The apparatus of claim 4,
And a pattern recognition based on information such as a touch or a proximity position of a pointer, a proximity distance, a proximity or touch holding time, and a movement path on the touch screen.

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