KR20100020817A - Mobile terminal and operation control method thereof - Google Patents

Abstract

And a method of controlling the operation of the portable terminal. The present invention provides a method for controlling a touch screen, comprising: setting a signal obtained by combining a plurality of touch signals inputted through a touch screen as an encryption signal; changing a specific function to a locked state; And releasing the locked state of the specific function. According to the present invention, various cryptographic signals can be set and arbitrary lock state can be prevented from being released.

Description

[0001] The present invention relates to a mobile terminal and an operation control method thereof,

The present invention relates to a portable terminal and its operation control method, and more particularly, to a portable terminal capable of releasing a locked state using a touch signal or a proximity signal inputted in a predetermined order or form in a locked state of the portable terminal, And an operation control method thereof.

A portable terminal is a portable device having at least one function that can carry out voice and video communication, a function to input and output information, and a function to store data while being portable.

In order to realize a complicated function, a mobile terminal implemented in the form of a multimedia device is being applied variously in terms of hardware and software. As a fee-based service such as a video call, a web service, and a content download can be performed using the portable terminal, there is an increasing need to protect the various paid communication events from being used by others. In addition, as the portable terminal has a close relationship with daily life, there is an increasing need to restrict the privacy of an individual, that is, to restrict access to information contained in a mobile terminal of another person. Therefore, the number of cases in which some functions of the portable terminal or the portable terminal are set to a locked state is increasing.

Generally, in order to release the lock state, in a portable terminal equipped with a touch screen, a method of releasing a locked state when a specific external key is long pressed or when a specific area of the touch screen is long pressed is used. However, in a commonly used method, a user may arbitrarily input a signal for releasing the lock state while moving the mobile terminal by holding the portable terminal, and the locked state may be canceled by the play of the children.

Accordingly, it is required to implement a cryptographic signal for releasing the locked state in various forms, thereby preventing a case in which the locked state is arbitrarily released, and preventing the cryptographic signal from being used by others.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide an apparatus and a method for setting an encryption signal capable of releasing a lock state using a touch signal or a proximity signal input in a predetermined order or form, And an operation control method thereof.

According to another aspect of the present invention, there is provided a method of controlling a mobile terminal, the method comprising: setting a signal obtained by combining a plurality of touch signals input through a touch screen as an encryption signal; And releasing the locked state of the specific function when the signal inputted through the touch screen is recognized as the encryption signal.

In order to achieve the above object, the present invention provides a method for controlling a mobile terminal including a proximity sensor, the method comprising: setting a signal obtained by combining a plurality of proximity signals detected by the proximity sensor as an encryption signal; And releasing the locked state of the specific function when the signal detected by the proximity sensor is recognized as the encrypted signal.

According to another aspect of the present invention, there is provided a portable terminal, comprising: a touch screen; and a signal combining unit configured to set a signal obtained by combining a plurality of touch signals inputted through the touch screen as an encryption signal, And a control unit for releasing the locked state of the specific function when the signal inputted through the touch screen is recognized as the encryption signal.

According to another aspect of the present invention, there is provided a portable terminal, which comprises a proximity sensor and a signal obtained by combining a plurality of proximity signals detected by the proximity sensor as a cryptographic signal, And a control unit for canceling the locked state of the specific function when the signal detected by the proximity sensor is recognized as the encryption signal.

According to the present invention, a cryptographic signal can be variously set by a user in a desired form, and it is possible to arbitrarily prevent the lock state from being released.

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

The portable terminal described in this specification includes a mobile phone, a smart phone, a notebook computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), and navigation.

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

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

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

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

The broadcast-related information may mean information related to a broadcast channel, a broadcast program, or a broadcast service provider. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and a broadcast signal in which a data broadcast signal is combined with a TV broadcast signal or a radio broadcast signal. The broadcast-related information can also be provided through a mobile communication network, in which case it can be received by the mobile communication module 113. Broadcast-related information can exist in various forms. For example, an EPG (Electronic Program Guide) of DMB (Digital Multimedia Broadcasting) or an ESG (Electronic Service Guide) of Digital Video Broadcast-Handheld (DVB-H).

The broadcast receiving module 111 receives broadcast signals using various broadcasting systems. In particular, the broadcast receiving module 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S) ), Digital Video Broadcast-Handheld (DVB-H), Integrated Services Digital Broadcast-Terrestrial (ISDB-T), and the like. In addition, the broadcast receiving module 111 may be configured to be suitable for all broadcasting systems that provide broadcasting signals, as well as the digital broadcasting system. The broadcast signal and / or broadcast related information received through the broadcast receiving module 111 may be stored in the memory 160.

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

The wireless Internet module 115 refers to a module for wireless Internet access, and the wireless Internet module 115 can be embedded in the mobile terminal 100 or externally. The short-range communication module 117 refers to a module for short-range communication. Bluetooth, radio frequency identification (RFID), infrared data association (IrDA), ultra wideband (UWB), ZigBee, and the like can be used as the short distance communication technology. A GPS (Global Position System) module 119 receives position information from a plurality of GPS satellites.

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

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

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

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

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

The sensing unit 140 may include a proximity sensor 141. The proximity sensor 141 is capable of detecting an object to be approached or the presence or absence of an object in the vicinity without mechanical contact. The proximity sensor 141 can detect a nearby object by using a change in the alternating magnetic field or a change in the static magnetic field, or a rate of change in capacitance. The proximity sensor 141 may be equipped with two or more sensors according to the configuration.

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

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

Meanwhile, as described above, when the display unit 151 and the touch pad have a mutual layer structure to constitute a touch screen, the display unit 151 can be used as an input device in addition to the output device. If the display unit 151 is configured as a touch screen, it may include a touch screen panel, a touch screen panel controller, and the like. In this case, the touch screen panel is a transparent panel attached to the outside, and can be connected to the internal bus of the portable terminal 100. The touch screen panel keeps a watch on the contact result, and if there is a touch input, sends the corresponding signals to the touch screen panel controller. The touch screen panel controller processes the signals, and then transmits corresponding data to the controller 180 so that the controller 180 can determine whether the touch input has been made and which area of the touch screen has been touched.

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

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

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

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

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

The interface unit 170 serves as an interface with all external devices connected to the portable terminal 100. Examples of the external device connected to the portable terminal 100 include a card socket such as a wired / wireless headset, an external charger, a wired / wireless data port, a memory card, a SIM / UIM card, / Output, Video I / O, and Earphone. The interface unit 170 receives data from the external device or receives power from the external device and transmits the data to each component in the portable terminal 100 so that data in the portable terminal 100 can be transmitted to the external device .

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

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

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

2 is a perspective view of a portable terminal according to an embodiment of the present invention. Referring to FIG. 2, the portable terminal includes a first body 100A and a second body 100B configured to be slidable along at least one direction on the first body 100A.

The state where the first body 100A is disposed in a state of being overlapped with the second body 100B may be referred to as a closed configuration and the first body 100A may be referred to as a second body 100B ) May be referred to as an open configuration.

While the portable terminal 100 is in the closed state, it operates mainly in the standby mode, but the standby mode is also canceled by the user's operation. While the portable terminal 100 is open, it operates mainly in a communication mode, but it is also switched to a standby mode by a user's operation or a predetermined period of time.

The case constituting the outer appearance of the first body 100A is formed by the first front case 100A-1 and the first rear case 100A-2. Various electronic components are embedded in the space formed by the first front case 100A-1 and the first rear case 100A-2. At least one intermediate case may be additionally disposed between the first front case 100A-1 and the first rear case 100A-2. Such cases may be formed by injection molding of a synthetic resin, or may be formed of a metal material, for example, a metal material such as stainless steel (STS) or titanium (Ti).

The display unit 151, the first sound output module 153a, and the first camera 121a may be disposed in the first body 100A, specifically, the first front case 100A-1.

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

The first acoustic output module 153a may be implemented in the form of a receiver or a speaker. The first camera 121a may be configured to be suitable for capturing an image or a moving image of a user or the like.

The case constituting the appearance of the second body 100B is formed by the second front case 100B-1 and the second rear case 100B-2. The first operation unit 130a may be disposed on the front face of the second body 100B, specifically, the second front case 100B-1. The second user input unit 130c, the microphone 123 and the interface unit 170 may be disposed on at least one of the first front case 100B-1 and the second rear case 100B-2.

The first user input unit 130a receives a command for controlling the operation of the portable terminal. The first user input unit 130a may include an input key having a function corresponding to a mouse function such as a joystick key, a touch pad, a track ball, a pointing stick, a finger mouse, and the like.

The first and second user input units 130a and 130c may be collectively referred to as a manipulating portion 130 and any method may be adopted if the user operates in a tactile manner with a tactile impression have. For example, the user input unit 130 may be implemented as a dome switch or a touch pad capable of receiving a command or information by a push or a touch operation of a user, or may be a wheel, a jog type, Method or the like.

In terms of functionality, the first user input 130a is for entering commands, numbers, letters, symbols, etc., such as start, end, scroll, and the like. Also, the second user input unit 130c may operate as a hot-key for activating a special function in the portable terminal.

The microphone 123 may be implemented in a form suitable for receiving voice, sound, etc. of the user. The interface unit 170 enables the portable terminal according to the present invention to exchange data with an external device. For example, the interface unit 170 may be at least one of a connection terminal for connecting to an earphone, a port for short-range communication, or power supply terminals for supplying power to the portable terminal 100, have. The interface unit 170 may be a card socket that accommodates an external card such as a user authentication module such as a subscriber identification module (SIM) or a user identity module (UIM), or a memory card for information storage.

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

3 is a rear perspective view of the portable terminal shown in FIG. Referring to FIG. 3, a second camera 121b may be further mounted on the rear surface of the second rear case 100B-2 of the second body 100B. The second camera 121b has a photographing direction substantially opposite to that of the first camera 121a, and may have pixels different from those of the first camera 121a.

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

In addition, a third user input unit 130d may be additionally mounted on the rear surface of the second rear case 100B-2 of the second body 100B. The third user input unit 130d may be implemented with a wheel, and may operate as a special function key such as a scroll in the portable terminal.

A flash 125 may be further disposed adjacent to the second camera 121b. The flash 125 illuminates the subject when the subject is photographed by the second camera 121b.

On one side of the second rear case 100B-2, a broadcast signal receiving antenna 105 may be disposed in addition to an antenna for communication. The antenna 105 may be installed to be able to be drawn out from the second body 100B. A part of the slide module 100C that slidably connects the first body 100A and the second body 100B is disposed on the first rear case 100A-2 side of the first body 100A. The other part of the slide module 100C may be disposed on the second front case 100B-1 side of the second body 100B and may not be exposed to the outside as shown in Fig.

In addition, a fourth user input unit 130e serving as a selection or confirmation key for a specific function may be disposed on one side of the second rear case 100B-2. The fourth user input unit 130e may operate as a hot-key for activating a special function in the portable terminal.

In the above description, the second camera 121b and the like are disposed on the second body 100B, but the present invention is not limited thereto. At least one of the structures 105, 121b, and 125 described as being arranged in the second rear case 100B-2, such as the second camera 121b, is a first body 100A, 1 rear case 100A-2. In such a configuration, there is an advantage that the structures disposed in the first rear case 100A-2 in the closed state are protected by the second body 100B. Also, the first camera 121a may be rotatably formed so that the second camera 121b can be photographed up to the photographing direction, even if the second camera 121b is not separately provided.

4 is a flowchart illustrating a method of controlling a mobile terminal operation according to an exemplary embodiment of the present invention.

As shown in FIG. 4, a password setting menu for the portable terminal 100 is first selected (S400). The control unit 180 can set a password consisting of numbers or characters through a password setting menu, and can set a password signal using a touch signal. Further, when the proximity sensor is included in the portable terminal 100, an encryption signal using the proximity signal may be set.

Next, the control unit 180 determines whether the password setting menu using the touch signal is selected or the password setting menu using the proximity signal is selected in the password setting menu (S405). When the proximity sensor is not included in the portable terminal 100, the password setting menu using the proximity signal is not included in the password setting menu.

If it is determined in step S405 that the password setting menu using the touch signal is selected, a signal obtained by combining a plurality of touch signals through the touch screen is input (S410). The plurality of touch signals include at least one of a plurality of directional touch signals and a plurality of directional touch signals. A plurality of directional touch signals may be a drag signal. Hereinafter, as one embodiment of the present invention, a plurality of directional touch signals will be described as a drag signal.

The inputted plurality of touch signals are set as an encryption signal (S420). That is, a signal obtained by combining one or more touch signals, or one or more drag signals, or a combination of one or more touch signals and one or more drag signals, may be set as an encryption signal. Here, the touch signal is input through a specific area of the touch screen. A specific area of the touch screen may be one area of the touch screen that is arbitrarily divided by the user. The number of divided areas can also be changed by the user.

For example, the control unit 180 may divide the touch screen into nine areas, and may set the first signal input to the first area of the touch screen and the second signal input to the second area as a cryptographic signal . The encryption signal may be a signal in which the first signal and the second signal are inputted in order, or may be a signal inputted at the same time.

The control unit 180 may set one or more drag signals as encryption signals. The drag signal is a letter, a number. Other symbols, and may be represented by a single word using a plurality of drag signals. For example, 'i', which is a combination of 'ㅇ' and 'ㅣ', can be set as an encryption signal. The control unit 180 can set the type of the input drag signal as an encryption signal, and can convert the input drag signal into a character and set the recognized character as an encryption signal. For example, it is possible to set a signal of the form of 'i' which is a combination of 'ㅇ' and 'ㅣ' as an encryption signal, convert the combined signal of 'i' Characters may be set as an encryption signal.

As another embodiment, a signal obtained by combining all of a drag signal input in a linear form, a first signal input to the first area of the touch screen, and a second signal input to the second area may be set as an encryption signal.

On the other hand, when it is determined in step S405 that the password setting menu using the proximity signal is selected, a signal obtained by combining a plurality of proximity signals detected by the proximity thin line 141 is input (S415). The plurality of proximity signals include at least one of a plurality of non-directional proximity signals and a plurality of directional proximity signals.

The input signal is set as an encryption signal (S420). That is, a plurality of non-directional proximity signals, or a plurality of directional proximity signals, or a combination of a plurality of non-directional proximity signals and a plurality of directional proximity signals may be set as encryption signals. The encryption signal may include one or more directional proximity signals. Here, the plurality of proximity signals without directionality correspond to one or more touch signals in step S410, and the plurality of directional proximity signals correspond to one or more drag signals in step S410. That is, a plurality of directional proximity signals means a set of one or more proximity signals detected at successive positions. The plurality of directional proximity signals means a case in which the proximity signal has an arbitrary shape such as a specific letter or number.

Here, the proximity signal is a signal detected by the proximity sensor 141, and the position where the proximity signal is detected may be the same position as one region of the touch screen that is arbitrarily divided by the user. The number of divided areas can also be changed by the user.

For example, the control unit 180 may set the first signal detected at the position of the first region of the touch screen and the second signal detected at the position of the second region as a cryptographic signal. The encryption signal may be a signal in which the first signal and the second signal are detected in order, or may be a signal detected at the same time. Also, '01', which is a combination of proximity signals detected in the form of '0' and '1', can be set as an encryption signal.

As another embodiment, a signal obtained by combining a proximity signal detected in a circular form, a first signal detected at the position of the first region of the touch screen, and a second signal detected at the position of the second region is set as an encryption signal .

Next, if an encryption signal is set through step S420, the control unit 180 ends the password setting menu (S425)

Next, the control unit 180 changes the specific function included in the portable terminal to the locked state by the user's selection (S430). The method of changing to the locked state may not use the encryption signal set in S420.

Next, when a function included in the portable terminal 100 is selected (S435) after an encryption signal for the portable terminal 100 is set, the controller 180 determines whether the selected function is locked (S440). If it is determined in step S440 that it is not locked, the execution screen of the selected function is displayed (S460). Here, the function included in the portable terminal 100 may be a lock setting of the portable terminal 100 itself, and may be a function of the portable terminal 100 such as a text message, a web server access, a login for accessing a specific web server, And a menu in which a locked state can be set.

If it is determined in operation S440 that the menu is in the locked state, the control unit 180 receives a signal for releasing the locked state through the touch screen or the proximity sensor 141 in operation S445. Whether the signal input in step S445 is a touch signal or a proximity signal may vary depending on the type of the encryption signal input in S410 or S415. In addition, when the function of the locked state is selected, the controller 180 may temporarily activate the touch screen or the proximity sensor 141 so that a signal can be input in step S445.

Next, the control unit 180 determines whether the signal input in step S445 is the same as the encryption signal set in step S420 (S450). Whether or not the signal input in step S445 is the same as the password signal set in step S420 may be included in a range that can be recognized to be the same depending on the type and order of the input signal. If it is determined that the input signal and the encryption signal are not the same, the control unit 180 receives a signal for releasing the lock state again (S445).

On the other hand, if it is determined in step S450 that the input signal and the encryption signal are not the same, the control unit 180 releases the locked state by the input encryption signal (S455), and the execution screen of the function whose locked state is released is displayed (S460). The execution screen of the function may be a standby screen of the mobile terminal 100, or may be a web page screen, a character writing screen, a received character screen, or a screen logged in for a specific web.

5 to 10 illustrate a method of controlling a mobile terminal operation according to an embodiment of the present invention, together with a screen displayed on a display unit.

5A, on the screen 550 in which a menu 551 for setting a password with a touch signal and a menu 552 for setting a password with a proximity signal are displayed, The menu 551 for setting is selected. If the touch screen is divided into nine areas by the automatic setting, as shown in FIG. 5B, the screen 553 divided into the first to ninth areas 1 touch signal, a second touch signal input through the seventh region, a third touch signal input through the third region, and a fourth touch signal input through the ninth region are sequentially inputted. A signal in which the first touch signal to the fourth touch signal are combined in order is set as an encryption signal. On the other hand, when the touch screen is divided into four areas by the setting of the user, as shown in FIG. 5 (b), the screen area divided into the first area through the fourth area The first touch signal input through the second region, the second touch signal input through the second region, the third touch signal input through the first region, and the fourth touch signal input through the fourth region. A signal in which the first touch signal to the fourth touch signal are combined in order is set as an encryption signal. That is, a signal including the first touch signal and the third touch signal input to the first area may be set as an encryption signal.

When an encryption signal is set using one or more drag signals, as shown in FIG. 6 (a), a 'drag' signal of 'a' type, a drag signal of ' Is displayed on the screen 555 as " Kim ". The signal 'Kim' obtained by combining each drag signal is set as an encryption signal. As another embodiment, a 'K' type drag signal, an 'I' type drag signal, and an 'M' type drag signal are inputted as shown in FIG. 6B, Quot; KIM " and is set as an encryption signal.

7A, a first touch signal is transmitted through the first area on the screen 557 divided into the first to ninth areas, a second touch signal is transmitted through the ninth area, A signal obtained by sequentially combining the drag signals inputted in the diagonal direction of the screen 557 can be set as an encryption signal. When one or more touch signals are used, not only the touch signals combined in order but also a plurality of simultaneously input touch signals can be set as encryption signals. Therefore, as shown in FIG. 7B, A touch signal input through the third area on the screen 558 divided into areas and a signal through which the touch signal input through the seventh area are input simultaneously can be set as an encryption signal.

8A, when a proximity sensor 141 is used to set an encryption signal, a menu 561 for setting a password as a touch signal and a menu 561 for setting a password as a proximity signal The menu 561 for setting a password with the proximity signal is selected on the screen 560 in which the passwords 562 and 562 are displayed. When the touch screen is divided into nine areas by the automatic setting, as shown in FIG. 8B, the touch screen is detected at the position of the first area on the screen 563 divided into the first to ninth areas The first proximity signal, the second proximity signal detected at the position of the third region, the third proximity signal detected at the position of the ninth region, and the fourth proximity signal detected at the position of the seventh region are sequentially inputted. A signal in which the first proximity signal to the fourth proximity signal are combined in order is set as an encryption signal. When a plurality of directional proximity signals are input, that is, when a continuously detected proximity signal is used, as shown in FIG. 8 (c), when a plurality of directional proximity signals of 'A' 'A' is displayed on the surface 564 and is set as an encryption signal. Even when the proximity signal is used, the input character or number can be set as a cryptographic signal using a plurality of directional proximity signals.

The encryption signal set in Figs. 5 to 8 is used when the function of the portable terminal 100 is locked, as shown in Figs. 9 to 10.

When the reception message box of the portable terminal 100 is in the locked state and the user selects the reception message box, the screen 570 on which the message 571 indicating the locked state is displayed, as shown in FIG. 9A, Is displayed, and the touch screen 572 is activated so that an encryption signal can be input. When the cipher signal is set as the proximity signal, the proximity sensor 141 is activated instead of the touch screen. 9B, the first touch signal is transmitted through the first area, the second touch signal is transmitted through the second area, and the third touch is transmitted through the first area through the activated touch screen 572. [ And a fourth touch signal are sequentially inputted through the fourth region. If it is determined that the input signal is identical to the predetermined encryption signal as a result of the determination by the controller 180, the locked state of the received message box is released and the received message box is displayed as shown in (c) of FIG. A screen 573 is displayed. If the encryption signal is set as a proximity signal, the first proximity signal detected at the position of the first region, the second proximity signal detected at the position of the seventh region, the third proximity signal detected at the position of the third region, , It is determined whether the fourth proximity signal detected at the position of the ninth area is a predetermined cipher signal, and the locked state can be released.

When the portable terminal 100 itself is in the locked state and the user wishes to use the portable terminal 100, a screen 580 displaying a message indicating that the portable terminal 100 is in the locked state is displayed as shown in FIG. 10 (a) And the touch screen 581 is activated so that an encryption signal can be input. When the cipher signal is set as the proximity signal, the proximity sensor 141 is activated instead of the touch screen. As shown in FIG. 9 (b), a drag signal of 'a' type, a drag signal of 'I' type and a drag signal of 'ㅁ' type are inputted through the activated touch screen 572, (555). If the controller 180 determines that the input signal is identical to the predetermined encryption signal, the locked state of the portable terminal 100 is released as shown in FIG. 10C, A screen 582 for displaying is displayed. If the cryptographic signal is set as a proximity signal, it is determined whether the signal inputted as 'KIM' is a preset coded signal by combining the continuously detected signals of the 'a', 'l' Can be released.

In addition, the configuration and method of the embodiments described above can be applied to a portable terminal and its operation control method according to the present invention, Or some of them may be selectively combined.

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

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

1 is a block diagram of a portable terminal according to an embodiment of the present invention;

2 is a front perspective view of a mobile terminal according to an embodiment of the present invention,

3 is a rear perspective view of a portable terminal according to an embodiment of the present invention,

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

5 to 10 are views illustrating a method of controlling a mobile terminal operation according to an embodiment of the present invention, together with screens displayed on a display unit.

Claims (26)

Setting a signal obtained by combining a plurality of touch signals input through a touch screen as an encryption signal; Changing the specific function to a locked state; And And releasing the locked state of the specific function when the signal inputted through the touch screen is recognized as the encryption signal. The method according to claim 1, Wherein the encryption signal is input in a predetermined order. The method according to claim 1, Wherein the encryption signal is input to a plurality of touch signals at the same time. The method according to claim 1, Wherein the encryption signal includes a plurality of directional touch signals. The method according to claim 1, Wherein the encryption signal includes a plurality of directional touch signals and a plurality of directional touch signals. The method according to claim 4 or 5, Wherein the plurality of directional touch signals are in a character form. 6. The method of claim 5, Wherein the character type is one of Hangul, English, a number, and a signature of a user. The method according to claim 1, Wherein the specific function is any one of a function of a mobile phone, a character function, and a web server access function. 1. A portable terminal operation control method including a proximity sensor, Setting a signal obtained by combining a plurality of proximity signals detected by the proximity sensor as an encryption signal; Changing the specific function to a locked state; And And releasing the locked state of the specific function when the signal detected by the proximity sensor is recognized as the encrypted signal. 10. The method of claim 9, Wherein the cryptographic signal includes a plurality of proximity signals input in a predetermined order. 10. The method of claim 9, Wherein the cryptographic signal includes a plurality of proximity signals input at the same time. 10. The method of claim 9, Wherein the encryption signal includes a plurality of directional proximity signals. 10. The method of claim 9, Wherein the encryption signal includes a plurality of proximity signals which are not directional and a plurality of directional proximity signals. The method according to claim 12 or 13, Wherein the plurality of directional proximity signals are in a character form. 15. The method of claim 14, Wherein the character type is one of Hangul, English, a number, and a signature of a user. 10. The method of claim 9, Wherein the specific function is any one of a function of a mobile phone, a character function, and a web server access function. touch screen; And Wherein the control unit sets a signal obtained by combining a plurality of touch signals input through the touch screen as an encryption signal, changes the specific function to a locked state, and when a signal input through the touch screen is recognized as the encryption signal, And releasing the locked state of the specific function. 18. The method of claim 17, Wherein the encryption signal is input in a predetermined order. 18. The method of claim 17, Wherein the encryption signal is input to a plurality of touch signals at the same time. 18. The method of claim 17, Wherein the encryption signal includes a plurality of directional touch signals. 18. The method of claim 17, Wherein the encryption signal includes a plurality of directional touch signals and a plurality of directional touch signals. Proximity sensor; And A signal combining the plurality of proximity signals detected by the proximity sensor is set as an encryption signal, the specific function is changed to a locked state, and when a signal detected by the proximity sensor is recognized as the encryption signal, And releasing the locked state of the specific function. 23. The method of claim 22, Wherein the encryption signal is input in a predetermined order. 23. The method of claim 22, Wherein the cryptographic signal includes a plurality of proximity signals input at the same time. 23. The method of claim 22, Wherein the encryption signal includes a plurality of directional proximity signals. 23. The method of claim 22, Wherein the encryption signal includes a plurality of proximity signals that are non-directional and a plurality of proximity signals that are directional.

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