KR20140019056A - Apparatus and method for unlocking of mobile terminal - Google Patents

Abstract

The present invention relates to an unlocking device and method, comprising: a touch screen for outputting a modified unlocking screen, receiving a modified unlocking password from a user, and determining a reference unlocking screen according to a preset lock method according to a unlocking request; And a controller configured to output a modified lock release screen corresponding to the reference lock release screen, and to unlock the modified lock release password corresponding to the modified lock release screen. The present invention allows the user to enter the modified unlock password every time the user enters the unlock password through the modified unlock screen, so that others can not easily recognize the password for unlocking, Even if exposed, since the unlock screen is transformed into another modified unlock screen, the unlocked screen cannot be unlocked by a password recognized by another person.

Description

Device and method for unlocking mobile terminal {APPARATUS AND METHOD FOR UNLOCKING OF MOBILE TERMINAL}

The present invention relates to an apparatus and a method for unlocking a mobile terminal.

In recent years, due to the rapid development of communication technology, functions in a mobile terminal are gradually expanding, and accordingly, more various user interfaces (UIs) and various functions using the same are provided.

In particular, a mobile terminal having a touch screen is provided with a locking function of various methods in order to limit unnecessary input errors or limit use by other users in a standby state. In general, the mobile terminal performs the locking function only when activation for the locking function is selected by the user. For example, the user may set a lock function to prevent another person from using his mobile terminal by using a password such as a predetermined pattern or a password.

When the lock function is set as described above, the mobile terminal typically locks when there is a lock condition such as when there is no input from the user for a predetermined time or when the user does not input for a certain time while using a specific function of the mobile terminal. Activate to enter the lock mode, the screen or function of the mobile terminal to be deactivated in the lock mode.

The mobile terminal releases the lock mode when the unlock password is input in the lock mode. For example, the mobile terminal releases the lock mode when there is a touch input corresponding to a predetermined unlock pattern, for example, or a password for a predetermined unlock is input by the user.

Referring to the conventional unlocking method in more detail, Figures 1A and 1B are diagrams for explaining the unlocking method according to the prior art.

First, referring to FIG. 1A, the mobile terminal may display a lock release screen as shown in FIG. 1A when a lock release request is made in the lock mode. FIG. 1A illustrates a lock release screen based on a pattern recognition method. The user may unlock by performing a password input such as a touch input corresponding to a predetermined pattern on the unlock screen of the pattern recognition method as shown in FIG. 1A. Referring to FIG. 1B, FIG. 1B illustrates an example in which a touch input corresponding to a pattern is performed. As illustrated in FIG. 1B, the mobile terminal releases the lock mode when a password input corresponding to a touch input corresponding to a predetermined pattern is performed by the user on the touch screen.

However, since the conventional method as described above is a predetermined fixed and uniform unlock screen is displayed on the mobile terminal, if the other person only grasps the pattern when the user performs a touch input corresponding to the pattern to unlock the lock, it is easy to lock. There is a problem that can be turned off. For example, when the unlock screen is displayed as shown in FIG. 1A, when another user sees a user inputting a pattern as shown in FIG. 1B, the pattern is likely to be easily recognized by the other person. Therefore, there is a risk that others can easily grasp the pattern as shown in FIG. 1B and randomly unlock and steal the user's mobile terminal.

Meanwhile, recently, display devices of mobile terminals are often made of a material in which fingerprints or touch marks remain when a user touches, such as a surface made of tempered glass. Therefore, in case of unlocking through the fixed and uniform unlock screen, the trace remains on the part which is frequently touched, and the pattern input or password input for unlocking is traced because the user touches the almost fixed portion. Likely to remain. As such, when an input trace for unlocking remains, another person may easily recognize the unlock input password by using the input trace, and unlock the mobile terminal to steal it.

Accordingly, an object of the present invention is to provide an unlocking device and method in a mobile terminal which is excellent in preventing the exposure of the unlocking password to others and is more secure.

Another object of the present invention is not to display a predetermined fixed unlock screen on the mobile terminal, but to automatically display a modified unlock screen, and the user applies the unlock password to the modified portion according to the modified unlock screen. By providing an input, it is an object of the present invention to provide an unlocking device and method in a mobile terminal to prevent the unlocking password from being easily exposed by others.

 According to an aspect of the present invention, there is provided an unlocking device, comprising: a touch screen for outputting a modified unlock screen and receiving a modified unlock password from a user, and unlocking a reference according to a preset lock method according to an unlock request; And a controller configured to determine a screen, to output a modified unlock screen corresponding to the reference unlock screen, and to unlock the modified unlock password corresponding to the modified unlock screen. do.

In addition, the present invention provides a method for unlocking a device, the method comprising: determining a reference lock screen according to a preset lock method according to a lock release request; outputting a modified lock screen corresponding to the reference lock screen; And receiving a modified lock release password corresponding to the modified lock release screen, and unlocking the modified lock release password.

According to the present invention, by modifying and displaying a fixed and uniform lock release screen, it is to provide an unlocking device and method in a mobile terminal which is excellent in preventing the unlocking password exposure to others and more excellent in security.

In other words, according to the present invention, by changing the unlock password through the modified unlock screen, the unlock password is changed every time the user enters the unlock password, thereby preventing other people from being exposed to the unlock password. have. In addition, the present invention, even if the password is exposed to others, since the unlock screen is modified, even if the password is recognized by the other person is not unlocked, there is an excellent security effect.

1A and 1B are views for explaining a lock release method according to the prior art.
2 is a block diagram of a mobile terminal having a lock release device according to an embodiment of the present invention;
3 is a flowchart illustrating a lock setting method in a mobile terminal according to an exemplary embodiment of the present invention.
4 is a flowchart illustrating an unlocking method in a mobile terminal according to an exemplary embodiment of the present invention.
5 is a flowchart illustrating an unlocking method in a mobile terminal according to the first to third embodiments of the present invention.
6A and 6B are diagrams illustrating an unlock screen of a dial lock method according to a first embodiment of the present invention.
7A and 7B are diagrams illustrating an unlock screen of a pattern recognition method according to a second embodiment of the present invention.
8A and 8B are diagrams illustrating an unlock screen of a number dialing method according to a third embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It is to be noted that the same elements among the drawings are denoted by the same reference numerals whenever possible. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

According to the present invention, if there is a request for unlocking while the lock mode is set, the reference unlock screen displays the modified variant unlock screen, and when the variant unlock password corresponding to the variant unlock screen is input, the unlock is released. An apparatus and method are provided. The present invention is capable of performing a lock function for restricting use by another user, and any device may be applied to any electronic device having a touch screen. For example, the terminal may be a mobile terminal such as a mobile phone, a smart phone, a tablet PC, or a fixed terminal such as a PC or a monitor.

In the present invention, a case of application to a mobile terminal will be described by way of example. 1 is a block diagram of a mobile terminal having a lock release device according to an embodiment of the present invention. Referring to FIG. 1, a mobile terminal 100 may be connected to an external device (not shown) using a mobile communication module 120, a sub communication module 130, and a connector 165. The external device includes other devices (not shown), a cell phone (not shown), a smart phone (not shown), a tablet PC (not shown) and a server (not shown).

Referring to FIG. 1, the apparatus 100 includes a touch screen 190 and a touch screen controller 195. The apparatus 100 includes a controller 110, a mobile communication module 120, a sub communication module 130, a multimedia module 140, a camera module 150, a GPS module 155, an input / output module 160 A sensor module 170, a storage unit 175, and a power supply unit 180. The sub communication module 130 includes at least one of a wireless LAN module 131 and a local communication module 132. The multimedia module 140 includes a broadcasting communication module 141, an audio reproduction module 142, (143). The camera module 150 includes at least one of a first camera 151 and a second camera 152. The input / output module 160 includes a button 161, a microphone 162, a speaker 163, A motor 164, a connector 165, and a keypad 166.

The control unit 110 stores a ROM or a ROM 112 storing a control program for controlling the apparatus 100 and a signal or data input from the outside of the apparatus 100, And a RAM (RAM) 113 used as a storage area for a work to be performed. The CPU 111 may include a single core, a dual core, a triple core, or a quad core. The CPU 111, the ROM 112, and the RAM 113 may be interconnected via an internal bus.

The controller 110 may include a mobile communication module 120, a sub communication module 130, a multimedia module 140, a camera module 150, a GPS module 155, an input / output module 160, and a sensor module 170. The controller 175 may control the storage unit 175, the power supply unit 180, the touch screen 190, and the touch screen controller 195. That is, the controller 110 performs the overall control function for the mobile terminal 100 and controls the signal flow between the components.

In particular, the controller 110 selects or inputs a reference unlock screen and an unlock password from a user through various input methods such as a touch method through the touch screen 190 and the touch screen controller 195 according to an embodiment of the present invention. To set the lock mode. The controller 110 may deactivate the screen output or other predetermined function of the mobile terminal 100 while the lock mode is set. In addition, the controller 110 controls to display the modified unlock screen that transforms the reference lock screen according to a predetermined rule when the lock request is made by another input method such as pressing a predetermined lock button by the user in the lock mode. . The controller 110 recognizes when a modified password corresponding to the modified unlock screen is input by various input methods such as a touch method by the user while the modified unlock screen is displayed, and releases the lock mode.

The mobile communication module 120 allows the device 100 to be connected to an external device through mobile communication using at least one or more antennas (not shown) under the control of the controller 110. The mobile communication module 120 may communicate with a mobile phone (not shown), a smartphone (not shown), a tablet PC or other device (not shown) having a phone number input to the device 100, And transmits / receives a radio signal for a text message (SMS) or a multimedia message (MMS).

The sub communication module 130 may include at least one of a wireless LAN module 131 and a local area communication module 132. For example, it may include only the wireless LAN module 131, only the short range communication module 132, or both the wireless LAN module 131 and the short range communication module 132.

The wireless LAN module 131 may be connected to the Internet at a place where a wireless access point (not shown) is installed under the control of the controller 110. [ The wireless LAN module 131 supports the IEEE 802.11x standard of the Institute of Electrical and Electronics Engineers (IEEE). The short-range communication module 132 may wirelessly perform short-range communication between the apparatus 100 and the image forming apparatus (not shown) under the control of the controller 110. [ The local area communication method may include bluetooth, infrared data association (IrDA), and the like.

The mobile terminal 100 may include at least one of a mobile communication module 120, a wireless LAN module 131, and a local communication module 132 according to performance. For example, the device 100 may include a combination of a mobile communication module 120, a wireless LAN module 131, and a short range communication module 132 depending on performance.

The multimedia module 140 may include a broadcasting communication module 141, an audio reproducing module 142, or a moving picture reproducing module 143. The broadcast communication module 141 receives a broadcast signal (e.g., a TV broadcast signal, a radio broadcast signal, or a data broadcast signal) transmitted from a broadcast station through a broadcast communication antenna (not shown) under the control of the controller 110, (E. G., An Electric Program Guide (EPS) or an Electric Service Guide (ESG)). The audio playback module 142 may play back a digital audio file (e.g., a file having a file extension of mp3, wma, ogg, or wav) that is stored or received under the control of the controller 110. [ The moving picture playback module 143 may play back digital moving picture files (e.g., files having file extensions mpeg, mpg, mp4, avi, mov, or mkv) stored or received under the control of the controller 110. [ The moving picture reproducing module 143 can reproduce the digital audio file.

The multimedia module 140 may include an audio play module 142 and a video play module 143 except for the broadcast communication module 141. The audio reproducing module 142 or the moving picture reproducing module 143 of the multimedia module 140 may be included in the controller 100.

The camera module 150 may include at least one of a first camera 151 and a second camera 152 for capturing still images or moving images under the control of the controller 110. [ In addition, the first camera 151 or the second camera 152 may include an auxiliary light source (e.g., a flash (not shown)) for providing the light amount necessary for photographing. The first camera 151 may be disposed on the front side of the apparatus 100 and the second camera 152 may be disposed on the rear side of the apparatus 100. The distance between the first camera 151 and the second camera 152 is larger than 1 cm and smaller than 8 cm) in a manner different from the first camera 151 and the second camera 152 Dimensional still image or a three-dimensional moving image.

The GPS module 155 receives radio waves from a plurality of GPS satellites (not shown) on the earth orbit, and uses the Time of Arrival from the GPS satellites (not shown) to the device 100 The position of the apparatus 100 can be calculated.

The input / output module 160 may include at least one of a plurality of buttons 161, a microphone 162, a speaker 163, a vibration motor 164, a connector 165, and a keypad 166.

A button 161 may be formed on the front, side, or rear of the housing of the device 100 and may include a power button (not shown), a lock button (not shown), a volume button A home button, a back button, and a search button 161. [

The microphone 162 receives a voice or a sound under the control of the controller 110 and generates an electrical signal.

The speaker 163 may transmit various signals (for example, a radio signal, a broadcast signal, a radio signal, a radio signal, a radio signal, a radio signal, and the like) of the mobile communication module 120, the sub communication module 130, the multimedia module 140, or the camera module 150 under the control of the controller 110. [ A digital audio file, a digital moving picture file, a picture photographing, or the like) to the outside of the apparatus 100. The speaker 163 can output sound corresponding to the function performed by the apparatus 100 (e.g., a button operation sound corresponding to a telephone call or a ring back tone). The speaker 163 may be formed at one or a plurality of appropriate positions or positions of the housing of the terminal 100.

The vibration motor 164 can convert an electrical signal into a mechanical vibration under the control of the control unit 110. [ For example, when the device 100 in the vibration mode receives a voice call from another device (not shown), the vibration motor 164 operates. May be formed in the housing of the apparatus 100 in one or more. The vibration motor 164 may operate in response to the user's touching operation on the touch screen 190 and the continuous movement of the touch on the touch screen 190.

The connector 165 may be used as an interface for connecting the apparatus 100 to an external apparatus (not shown) or a power source (not shown). The data stored in the storage unit 175 of the apparatus 100 is transmitted to an external device (not shown) via a wired cable connected to the connector 165 under the control of the controller 110, Lt; / RTI > Power can be input from a power source (not shown) or can be charged to a battery (not shown) through a wired cable connected to the connector 165. [

The keypad 166 may receive key input from a user for control of the device 100. Keypad 166 includes a physical keypad (not shown) formed on device 100 or a virtual keypad (not shown) displayed on touch screen 190. The physical keypad (not shown) formed in the mobile terminal 100 may be excluded according to the performance or structure of the device 100.

The sensor module 170 includes at least one sensor for detecting the condition of the device 100. For example, the sensor module 170 may include a proximity sensor that detects whether a user is approaching the device 100, a light intensity sensor (not shown) that detects the amount of light around the device 100, (Not shown) that detects the motion of the device 100 (e.g., the rotation of the device 100, the acceleration or vibration applied to the device 100). At least one of the sensors may detect the state, generate a signal corresponding to the detection, and transmit the signal to the control unit 110. The sensor of the sensor module 170 may be added or deleted depending on the capabilities of the device 100.

The storage unit 175 is connected to the mobile communication module 120, the sub communication module 130, the multimedia module 140, the camera module 150, the GPS module 155, the input / And may store signals or data input / output corresponding to the operation of the touch panel 160, the sensor module 170, and the touch screen 190. The storage unit 175 may store control programs and applications for controlling the mobile terminal 100 or the control unit 110. [

In particular, the storage unit 175 may include a user interface provided by the mobile terminal 100, various setting information according to the use of the mobile terminal 100, information on setting a lock mode, and the like, according to an embodiment of the present invention. . The information about the lock mode setting includes at least one lock method, a plurality of lock screens according to each of the at least one lock method, unlock password information, and the like.

The term " storage unit " refers to a storage unit 175, a ROM 112 in the control unit 110, a RAM 113, or a memory card (not shown) ). The storage unit may include a nonvolatile memory, a volatile memory, a hard disk drive (HDD), or a solid state drive (SSD).

The power supply unit 180 may supply power to one or a plurality of batteries (not shown) disposed in the housing of the apparatus 100 under the control of the controller 110. One or more batteries (not shown) supply power to the device 100. In addition, the power supply unit 180 can supply power to the apparatus 100 from an external power source (not shown) through a wired cable connected to the connector 165.

The touch screen 190 may provide a user interface corresponding to various services (e.g., call, data transmission, broadcasting, photographing) to the user. The touch screen 190 may transmit an analog signal corresponding to at least one touch input to the user interface to the touch screen controller 195. The touch screen 190 can receive at least one touch through a user's body (e.g., a finger including a thumb) or a touchable input means (e.g., a stylus pen). Also, the touch screen 190 can receive a continuous movement of one touch among at least one touch. The touch screen 190 may transmit an analog signal corresponding to the continuous movement of the input touch to the touch screen controller 195.

In particular, according to an embodiment of the present invention, the touch screen 190 displays a modified unlock screen that transforms the reference lock screen according to a predetermined rule under the control of the controller 110. The touch screen 190 generates a variant unlock password input event when there is an input corresponding to the variant unlock password corresponding to the variant unlock screen by the user while the variant unlock screen is displayed under the control of the controller 110. Transfer to the controller 110. In this case, the user input includes a touch and drag input for inputting a predetermined pattern, a touch and sweep input for inputting a predetermined dial lock value or a predetermined password dial value. can do.

In the present invention, the touch is not limited to the contact between the touch screen 190 and the user's body or touchable input means, but may be a non-contact (e.g., between the touch screen 190 and the user's body, 1 mm or less). The detectable interval on the touch screen 190 may be changed according to the performance or structure of the mobile terminal 100.

The touch screen 190 may be implemented by, for example, a resistive method, a capacitive method, an infrared method, or an acoustic wave method.

The touch screen controller 195 converts the received analog signal from the touch screen 190 into a digital signal (e.g., X and Y coordinates) and transmits the converted signal to the controller 110. [ The controller 110 may control the touch screen 190 using the digital signal received from the touch screen controller 195. For example, the control unit 110 may cause a shortcut icon (not shown) displayed on the touch screen 190 to be selected or a shortcut icon (not shown) in response to a touch. Also, the touch screen controller 195 may be included in the control unit 110. [

Hereinafter, a method of setting a lock mode and a method of releasing a lock mode in a state in which a lock mode is set will be described in the mobile terminal 100 configured as described above.

First, a lock mode setting method according to an embodiment of the present invention will be described. According to an embodiment of the present disclosure, the controller 110 of the mobile terminal 100 may control the overall operation regarding the lock mode setting. In this case, the control of the controller 110 may be implemented in software to process the operation of the present invention.

3 is a flowchart illustrating a lock mode setting method in a mobile terminal 100 according to an exemplary embodiment of the present invention. Referring to FIG. 3, the mobile terminal 100 determines whether there is a lock mode setting request input by a user in step 302. The user may input a lock setting request by selecting a lock mode setting item among various items of the setting menu provided by the mobile terminal 100.

When the lock mode setting item is selected by the user, the mobile terminal 100 displays the lock mode setting screen in step 304. In this case, at least one lock method selectable by the user may be displayed on the lock mode setting screen. For example, the at least one locking method may include a dial lock method, a pattern recognition method, and a numeric dial method. The dial lock method is a lock method in which the lock is unlocked when the dial lock password corresponding to the password is entered by turning the dial lock. The pattern recognition method is a lock method in which a lock is released when a pattern corresponding to a password is input. The number dial method is a lock method in which a lock is unlocked when a number is entered based on the number by turning the dial as long as a random number is provided as a condition.

The mobile terminal 100 sets the locking method according to the random lock method selected by the user in step 306. For example, when the user selects one of the dial lock method, the pattern recognition method, and the numeric dial method, the selected lock method is set.

When the lock method is set, the mobile terminal 100 sets a reference lock release screen corresponding to the lock method in step 308. In this case, the reference lock release screen may be a predetermined screen or a lock release screen selected by a user among a plurality of pre-stored lock release screens.

When the reference lock release screen is set, the mobile terminal 100 sets a lock release password corresponding to the reference lock release screen in step 310. In this case, the unlock password corresponding to the reference lock screen may be a pre-stored unlock password or a lock unlock password input by the user. When the unlock password is set as described above, the mobile terminal 100 stores the lock mode setting values, that is, the set reference lock screen and the unlock password.

The mobile terminal 100 has a predetermined lock condition such as when there is no input from the user for a predetermined time while the lock mode setting values are stored, or when the user does not input for a predetermined time while using a specific function of the mobile terminal. In this case, the lock function is activated to enter the lock mode.

 As such, the mobile terminal 100 deactivates the screen output or the predetermined predetermined function to enter the lock mode. The user needs to release the lock mode in order to use the mobile terminal 100.

Hereinafter, a method of releasing the lock mode in the state where the lock mode is set as described above will be described. 4 is a flowchart illustrating a method of releasing a lock mode according to an exemplary embodiment of the present invention.

Referring to FIG. 4, the mobile terminal 100 determines whether there is a lock mode release request in step 402. The user may request to release the lock mode by performing an input such as pressing a predetermined lock button in the lock mode.

When the lock mode release request is input, the mobile terminal 100 determines a preset lock scheme in operation 404 and determines a screen set as a reference lock release screen among lock release screens according to the lock scheme.

 In operation 406, the mobile terminal 100 displays the modified lock release screen corresponding to the reference lock release screen. In this case, the modified lock release screen refers to a lock release screen obtained by modifying the reference lock release screen according to a predetermined rule. The predetermined rule may be a rule in which the unlock screen is rotated at an angle or the number used as a condition for inputting the password of the unlock screen is changed to another number.

After displaying the modified lock release screen, the mobile terminal 100 determines whether a modified lock release password corresponding to the modified lock release screen is input in step 408. For example, when the unlock screen is rotated by an angle, it is determined whether the unlock password is input at a position rotated by the rotation angle of the unlock screen. In addition, when the number used as a condition for inputting the password of the unlock screen is changed according to a predetermined value, it is determined whether the password according to the changed number is input.

If the modified lock release password is input, the mobile terminal 100 releases the lock mode in step 410 and activates a screen output or a predetermined schedule function which has been deactivated.

On the other hand, the lock mode release method of the present invention as described above may be implemented in various various embodiments according to the lock method.

Hereinafter, a more specific example of the lock mode releasing method of the present invention will be described. 5 is a flowchart illustrating a method of releasing a lock mode when the lock method according to the first to third embodiments of the present invention is applied. According to the first embodiment of the present invention, the dial lock locking method may be applied, the pattern recognition locking method may be applied according to the second embodiment of the present invention, and the number dial locking method according to the third embodiment of the present invention may be applied. May be applied.

Referring to FIG. 5, the mobile terminal 100 determines whether there is a lock mode release request in step 502. The user may request to release the lock mode by performing an input such as pressing a predetermined lock button in the lock mode.

When the lock mode release request is input, the mobile terminal 100 determines a preset lock method in step 504. For example, it is determined whether the preset lock method is a lock lock method, a pattern recognition lock method, or a numeric dial lock method.

If the lock method is the dial lock lock method according to the first embodiment of the present invention, the mobile terminal 100 proceeds to step 506 and checks the preset dial lock reference lock release screen. In operation 508, the mobile terminal 100 displays the dial lock modified unlock screen in which the dial lock reference unlock screen is modified. In this case, the modified lock release screen may be a screen in which the reference lock release screen is modified according to a predetermined rule, and the dial lock reference lock release screen may be rotated by an angle.

For example, FIGS. 6A and 6B are diagrams illustrating an unlock screen of a dial lock method according to a first embodiment of the present invention. According to an exemplary embodiment of the present invention, when the dial lock reference unlock screen as shown in FIG. 6A is previously set, the mobile terminal 100 may display the dial lock deformation unlock screen rotated by an angle counterclockwise as shown in FIG. 6B. Can be.

The mobile terminal 100 proceeds to step 510 while the dial lock modified unlock screen is displayed, and determines whether the modified lock release password corresponding to the dial lock modified unlock screen is input by the user. The user knows the unlock password corresponding to the standard unlock screen, and when the variant unlock screen is displayed, the user can recognize a schedule rule according to the variant of the unlock screen and enter a variant unlock password according to the schedule rule. . For example, when the dial lock reference unlock screen is shown in FIG. 6A and is displayed rotated at an angle counterclockwise as shown in FIG. 6B, as shown in FIG. 6B, the variant unlock password is rotated at an angle counterclockwise. It may be modified.

Meanwhile, according to the second embodiment of the present invention, when the lock method is the pattern recognition lock method, the mobile terminal 100 proceeds to step 516 and checks the preset pattern recognition reference lock screen. In operation 518, the mobile terminal 100 displays the pattern recognition modified unlock screen in which the pattern recognition criterion unlock screen is modified. In this case, the modified lock release screen may be a screen obtained by modifying the reference lock release screen according to a predetermined rule, and may be a screen in which the pattern recognition reference lock release screen is rotated by an angle.

Specifically, FIGS. 7A and 7B are diagrams illustrating an unlock screen of a pattern recognition method according to an exemplary embodiment of the present invention. According to an exemplary embodiment of the present invention, when the pattern recognition criterion unlocking screen as shown in FIG. 7A is previously set, the mobile terminal 100 may display the pattern recognition transform unlocking screen rotated by an angle in a clockwise direction as shown in FIG. 7B. have.

The mobile terminal 100 proceeds to step 520 while the pattern recognition deformation unlock screen is displayed, and determines whether a deformation unlock password corresponding to the pattern recognition deformation lock screen is input by the user. The user knows the unlock password corresponding to the standard unlock screen, and when the variant unlock screen is displayed, the user can recognize a schedule rule according to the variant of the unlock screen and enter a variant unlock password according to the schedule rule. . For example, when the pattern recognition criterion unlock screen is shown in FIG. 7A and is rotated by a clockwise angle as shown in FIG. 7B, as shown in FIG. 7B, the deformation unlock password is rotated by a certain angle in the clockwise direction. It may be.

In addition, when the lock method is the number dial lock method according to the third embodiment of the present invention, the mobile terminal 100 proceeds to step 526 and checks the preset number dial reference lock screen. In operation 528, the mobile terminal 100 displays the number dial modification lock release screen in which the number dial reference lock release screen is modified. In this case, the modified lock release screen may be a screen obtained by modifying the reference lock release screen according to a predetermined rule, and may be a screen in which the password condition number is changed to another number.

Specifically, FIGS. 8A and 8B are diagrams illustrating an unlock screen of a number dial method according to an exemplary embodiment of the present invention. According to an embodiment of the present invention, the mobile terminal 100 randomly modifies the number as shown in FIG. 8B when the condition number for decryption is set to '000' on the number dial reference unlock screen as shown in FIG. 8A. A number dial variant unlock screen including a variant number may be displayed, such as '362'.

When the number dial modification lock release screen is displayed, the mobile terminal 100 determines in step 530 whether the number dial modification lock release password corresponding to the number dial modification lock release screen is input by the user. The user knows the unlock password corresponding to the standard unlock screen, and when the variant unlock screen is displayed, the user can recognize a schedule rule according to the variant of the unlock screen and enter a variant unlock password according to the schedule rule. .

For example, in the state that the number dial reference unlock screen is shown in FIG. 8A and the number dial variant unlock screen in which the condition number for decryption is modified from '000' to '362' is displayed as shown in FIG. 8B, the variant unlock password is changed. Can be. For example, when the condition number is '000', the password turns 2, 3, 5 clockwise (2 inputs), then rotates 2 counterclockwise (0 inputs), and clockwise 3 If you rotate a cell (3 inputs) again, rotate it 3 counterclockwise (0 inputs), rotate it 5 clockwise (5 inputs), then rotate it clockwise 5 spaces (0 inputs). If the number is changed to '362', the passcode rotates the dial 2 spaces clockwise (2 inputs), then rotates 1 space clockwise (3 inputs), touches without rotation (3 inputs), and clockwise. It can be changed by rotating 5 spaces (5 inputs) and then rotating 3 spaces counterclockwise (2 inputs). In this case, the input may be input by a touch-off or an operation of touching again in the touch-off state.

As described above, when the modified unlock password is input on the modified lock release screen of the corresponding lock method, the mobile terminal 100 releases the lock mode in step 532 and activates a screen output or a predetermined schedule function deactivated in the lock mode. do. In this case, if a password other than the modified unlock password is input, the mobile terminal 100 may display that an incorrect password is input.

According to the embodiment of the present invention as described above, by modifying and displaying a fixed and uniform lock screen, it is excellent in preventing the unlock password exposure to others, and excellent security effect for the unlock password have. In other words, according to an embodiment of the present invention, by allowing the user to input the modified unlocking password every time the user inputs the unlocking password through the modified unlocking screen, the other person cannot easily recognize the password for unlocking. can do. In addition, according to an embodiment of the present invention, even if a password is exposed to another person, since the unlock screen is transformed into another modified unlock screen, it is not possible to unlock with a password recognized by another person, thereby providing excellent security. .

It will be appreciated that embodiments of the present invention may be implemented in hardware, software, or a combination of hardware and software. Any such software may be stored in a memory such as, for example, a volatile or nonvolatile storage device such as a storage device such as ROM, or a memory such as, for example, a RAM, memory chip, device, or integrated circuit, whether removable or rewritable. , Or stored in a machine-readable storage medium, such as optical, or magnetically recordable, such as, for example, a CD, DVD, magnetic disk or magnetic tape. It will be appreciated that a memory that can be included in a mobile terminal is an example of a machine-readable storage medium suitable for storing a program or programs containing instructions for implementing embodiments of the present invention. Accordingly, the invention includes a program comprising code for implementing the apparatus or method as claimed in any of the claims herein, and a storage medium readable by a machine (such as a computer) for storing such a program. In addition, such a program may be electronically transported through any medium such as a communication signal transmitted via a wired or wireless connection, and the present invention appropriately includes the same.

Claims (11)

In the unlocking device,
A touch screen that outputs a variant unlock screen and receives a variant unlock password from the user,
Determine a reference lock screen according to a preset lock method according to the lock release request, and control to output a deformation lock screen corresponding to the reference lock screen, the deformation unlock password corresponding to the deformation lock screen And a control unit for releasing the lock if received. The method of claim 1,
And a storage unit which stores at least one lock release screen including the reference lock release screen and the modified lock release screen. The method of claim 1,
The modified lock release screen is a lock release device, characterized in that the modified screen according to a predetermined rule unlock screen. The method of claim 3,
And the predetermined rule is a rule for randomly rotating the reference lock release screen at a predetermined angle. The method of claim 3,
The predetermined rule is a lock release device, characterized in that for randomly changing the unlock condition number of the reference lock release screen to another number. The unlocking device of claim 3, wherein the locking method comprises at least one of a lock dial lock method, a pattern recognition lock method, and a number dial lock method. In the unlocking method,
Determining a reference unlock screen according to a preset lock method according to the unlock request;
Outputting a variant unlock screen corresponding to the reference unlock screen;
Receiving a variant unlock password corresponding to the variant unlock screen from a user;
Unlocking when the modified unlock password is received. The method of claim 7, wherein
And the modified lock release screen is a screen obtained by modifying the reference lock release screen according to a predetermined rule. 9. The method of claim 8,
The predetermined rule is a rule for rotating the reference lock release screen at a predetermined angle randomly. 9. The method of claim 8,
The predetermined rule is a lock release method, characterized in that to randomly change the lock release condition number of the reference lock release screen to another number. The method of claim 8, wherein the locking method comprises at least one of a lock dial lock method, a pattern recognition lock method, and a number dial lock method.

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