KR20000045662A - Method for releasing locking function of mobile communication terminal and apparatus thereby - Google Patents

Abstract

PURPOSE: A method for releasing the locking function of a mobile communication terminal and the apparatus thereby are provided so that a user can confirm a password and release the locking function, by displaying the stored password in case that the terminal displays a stored question and the answer for the question is accorded. CONSTITUTION: A RF signalling part(12) demodulates and amplifies an RF signal received through an antenna(11). A baseband conversion part(13) executes digital-analog conversion or analog-digital conversion for signals transmitted and received between the RF signalling part(12), a digital signalling processor(16), a speaker(14) and a microphone(15). The digital signalling processor(16) carries out an equalizer to remove multiple path noise and an audio relevant data processing function. A microprocessor(17) controls the RF signalling part(12) and the digital signalling processor(16) and executes interleaving, block coding and convolution coding for the data transmitted and received.

Description

Method for releasing lock function of mobile communication terminal and device

The present invention relates to a mobile communication terminal, in particular, if a password is not remembered in a state in which a lock function is set in the terminal, when the user selects a predetermined function key, the terminal displays a stored question and the response to the question matches. The present invention relates to a method and a device for releasing a lock function of a mobile communication terminal, which enables a user to release a lock function by checking a password by displaying a stored password.

At present, a mobile communication terminal has been developed and widely used to make a voice call with another person while moving from an arbitrary place or from one place to another.

In addition, in the above mobile communication terminal, a number of additional functions have been added and used to provide various conveniences to users beyond the conventional simple call function.

Recently, a mobile communication terminal having a built-in lock function has been released as a means for suppressing the number of times the terminal is used or preventing the terminal from being used by another person when the terminal is stolen or lost.

In addition, in order to set the lock function of the mobile communication terminal, when the user selects a lock function setting mode and inputs a predetermined password, the terminal stores the input password and sets a lock function on, for example, a transmission key of the keypad. Done.

In addition, in order to release the locking function of the terminal set by the user in a state in which the locking function is set in the terminal, when the user turns on the terminal and inputs a password by operating a keypad, the terminal matches the input password with the previously stored password. If it is determined whether or not to match, for example, the terminal is switched to the available state by releasing the lock function set in the transmission key of the keypad.

On the other hand, if the user incorrectly remembers the password entered when setting the lock function of the terminal, or if the password is forgotten, the user cannot use the terminal anymore because he or she is in trouble. do.

In addition, in the above state, if the user's password is not remembered continuously, the user visits the service center and forcibly releases the lock function set in the terminal. Therefore, the user may time and release the lock function of the terminal. There was a problem of having to take economic losses.

Accordingly, the present invention has been made in view of the above-described circumstances, and when the user selects a help key in a state in which the user pre-stores a predetermined question and response in the terminal and sets the lock function, the terminal pre-stores the pre-stored question. The present invention provides a method and a device for releasing the lock function of a mobile communication terminal, in which the user can confirm the password and release the lock function by displaying the stored password when the answer to the question is matched. .

1 is a block diagram showing the internal configuration of a mobile communication terminal with a lock function according to an embodiment of the present invention.

2 is a flowchart for explaining the operation of the apparatus shown in FIG.

*** Explanation of symbols for main parts of drawing ***

11: antenna, 12: RF signal processing unit,

13: baseband converter, 14: speaker,

15: microphone,

16: DSP (Digital Signal Processor), 17: microprocessor,

18: Subscriber Identity Module (SIM),

19: program storage, 20: keypad,

20a: numeric keys, 20b: function keys,

20c: help key, 21: LCD display,

22: data storage, 23: guide message storage,

24: question and answer storage unit 25: password storage unit.

According to a first aspect of the present invention, there is provided a method of releasing a lock function of a mobile communication terminal, comprising: key input means including a numeric key, a function key and a help key, a password storage means for storing a password, and a key input A method for releasing a lock function in a mobile communication terminal, comprising: a question answer storage means for storing a question and a response input through the means, a display means, and a control means for controlling setting and execution of a lock function of the terminal; A question answer input mode setting step of setting a question answer input mode on the basis of the key input of the key input means, and a question and answer inputted through a key input means in a state where the question answer input mode is set; When the locking function is selected through the key input means in the state of storing the question and answer stored, the locking function setting step of setting the lock function in the terminal, when the help key input is detected in the state in which the locking function is set A question-and-response determination step of reading a pre-stored question from the question-and-response storage means and displaying it through the display means, and determining whether or not the response to the question matches the pre-stored response if the response to the question is input through the key input means; If the response inputted through the key input means matches the previously stored response, the stored password is read. Is displayed through the display unit W and a password that matches the previously stored password input through the key input means, including a phase lock release function to release the lock is characterized in that configured.

In addition, the question and response input through the key input means in the question and answer storage step is characterized in that the character or number data.

Then, the password input through the key input means in the lock function setting step, characterized in that for storing the number data in the password storage means.

In addition, a mobile communication terminal having a lock function release function according to the second aspect of the present invention, a key input means having a numeric key, a function key and a help key, and a password storage for storing a password inputted through the key input means. Means, a question and answer storage means for storing the question and response input through the key input means, display means for displaying the password, question and response according to a control signal, and a question and response input through the key input means. If the help key is selected while the data is stored in the question answer storage means and the lock function is set, the question stored in the question answer storage means is read and displayed through the display means, and the response inputted through the key input means is read. Control means for reading out the password stored in the password storage means and controlling the display through the display means if it matches the stored response Characterized in that configured to include.

In addition, when the question answer input mode is selected through the key input means, the control means switches the mode state of the terminal to the question answer input mode, and texts the question and answer input through the key input means into the question answer storage means. Or storing as number data.

The control means may release the lock function set in the terminal when the password inputted through the key input means and the password stored in the password storage means match.

That is, according to the present invention having the above-described configuration, when the user selects the question answer input mode by operating the key input means and inputs a predetermined question and answer, the control means stores the result in the question answer storage means, When the help key provided in the key input means is input while the lock function is set, the control means reads the question stored in the question answer storage means and displays it through the display means, and the response input through the key input means is stored in advance. If it matches the response, the password stored in the password storage means is read out and displayed through the display means.

In addition, when the user inputs the displayed password through the key input means, the control means releases the lock function of the terminal and switches to the normal call waiting state when the previously stored password and the input password match.

Therefore, when the user does not remember the password for releasing the lock function of the terminal, the user can confirm the stored password by releasing the help key of the terminal and answer the previously entered question to release the lock function of the terminal.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention.

1 is a block diagram schematically showing the internal configuration of a mobile communication terminal with a lock function according to an embodiment of the present invention.

In Fig. 1, reference numeral 11 denotes an antenna for data transmission and reception, and 12 denotes a transmission signal applied from the baseband converter 13 to demodulate and amplify an RF signal received through the antenna 11, That is, the RF signal processor 13 for GMSK modulation and outputting the IQ signal, for example, 13 is a signal transmitted and received between the RF signal processor 12 and the digital signal processor 16, the speaker 14 and the microphone 15 to be described later. The baseband conversion unit performs digital-analog conversion, analog-digital conversion processing, and so on.

In addition, reference numeral 14 is a speaker for outputting the voice signal received from the baseband converter 13 as an audible sound, 15 is a microphone for converting the user's voice input into an electrical signal, 16 is coding or decoding the voice signal Digital Signal Processor (DSP), which performs an equalizer to remove multipath noise and performs audio related data processing functions, and 17 controls or transmits / receives the RF signal processor 12 and the DSP 16. A microprocessor that controls interleaving, block coding, and convolution coding for data, and controls various additional functions and devices in general.

In addition, reference numeral 18 denotes a subscriber identity module (SIM) for processing various services for subscriber related functions of the mobile communication terminal 1 and processing network information related to subscribers and storing registration information of subscribers. 19 is a program memory for storing the function of the terminal and protocol software for processing messages transmitted and received with the network.

In addition, reference numeral 20 is a keypad composed of a numeric key 20a, a function key 20b, a help key 20c, and the like for dialing, and 21 is an LCD display for displaying the operating state of the terminal using an LCD (Liquid Crystal Display). 22 is a data storage unit serving as a data buffer when the terminal operation program is executed, and 23 is a guide message storage unit for storing various guide messages of the terminal.

In addition, reference numeral 24 denotes a question and answer storage unit for storing a question inputted by the user and a response thereto, and 25 denotes a password storage unit for storing a password input when the lock function is set and released.

Next, the operation of the device having the above configuration will be described with reference to the prochart shown in FIG.

First, the process of setting a question and answer in the terminal is performed when the user turns on the mobile communication terminal 1 (ST11), and the microprocessor 17 sequentially increases or demodulates the demodulation frequency of the RF signal processor 12. While reducing, the wireless carrier received through the antenna 11 is searched and the base station (not shown) to which the base station belongs is determined based on the level of each demodulated signal inputted (ST12).

At this time, the microprocessor 17 stores the control data for controlling the RF signal processing unit 12 and the level of the received data input through the baseband conversion unit 13 in the data storage unit 22 and then stores the control data. The demodulation frequency of the RF signal processing unit 12 is set based on the reception frequency having the large level value.

The microprocessor 17 receives a broadcast channel (BCCH) from a base station (not shown), grasps information of the base station, and stores its information stored in the subscription information storage unit 18 according to the LAPDm protocol. The registration procedure is performed by reading the subscriber information (IMSI: International Mobile Subscriber Identity) and transmitting it to the corresponding base station (ST13).

Then, when the registration process is completed in step ST13, the microprocessor 17 checks whether there is a call from another terminal, that is, whether a paging channel is received from a base station (not shown), and the user selects the keypad 20. By operating, a normal call waiting state is detected in which a transmission request (call request) is made to the base station or whether a handover command is received from the base station (ST14).

On the other hand, when the user selects the question answer input mode by operating the function key 20b of the keypad 20 in order to input the question and answer to the terminal (ST15), the microprocessor 17 asks the mode state of the terminal. In addition to switching to the response mode state, for example, the "Enter a question" question input guide message is read from the menu message storage unit 23 and displayed on the LCD display unit 21 (ST16).

Subsequently, when the user manipulates the keypad 20 to input, for example, “the wedding anniversary,” the microprocessor 17 stores the input text data as data in the question and answer storage unit 24 (ST17). For example, the message " Please enter the content to respond " is read from the message storage unit 23 and displayed on the LCD display unit 21 (ST18).

Subsequently, when the user manipulates the keypad 20 to input, for example, “970412,” the microprocessor 17 stores the input number data as data in the question answer data storage unit 24 (ST19). When an AND key, not shown by the user, is input or when a predetermined time e.g., "5 seconds" elapses, the user's question answering mode is released to switch to the normal call waiting state (ST20).

On the other hand, when the user inputs a question and answer in the above-described manner, and the user turns on the terminal in a state in which the locking function is set in the terminal (ST31), the macro processor 17 from the message storage unit 23. For example, the "lock function setting" guide message is read and displayed on the LCD display 21 (ST32), and the key input of the keypad 20 is detected (ST33).

Subsequently, in the step ST33 of detecting key input, the microprocessor 17 re-performs step ST32 of displaying the confinement function setting guide message if a key input is not detected, and if the key input is detected, the corresponding key. It is determined whether the input is the help key 20c (ST34). If the key input is the numeric key 20a instead of the help key 20c, it is determined as a password input and the number stored in the password storage unit 25. The data is read out and compared with the input password (ST35).

Subsequently, in step ST35 comparing the password, if the input password and the stored password do not match, the microprocessor 17 performs step ST32 displaying the lock setting guide message again, and if the password matches. In addition to releasing the lock function of the terminal, and performs the steps ST12 ~ ST14 to switch to a general call waiting partner (ST36).

On the other hand, in step ST34 to determine whether the detected key input is the help key 20c, the microprocessor 17 is stored in the question answer storage unit 24 when the key input is the help key 20c. The data corresponding to the question, for example, "the wedding anniversary" is read out and displayed on the LCD display 21, and the response data according to the question, for example, "970412" is read out and temporarily stored in the data storage unit 22. (ST37).

Then, when the user operates the keypad 20 in response to the question to input a predetermined numeric key 20a, the microprocessor 17 stores the corresponding number data and the data on the input numeric key 20a. It is determined whether or not the number data temporarily stored in the unit 22 is matched (ST38), and if it does not match, for example, the step ST37 indicating "the wedding anniversary" is maintained, and, for example, if it does not match three or more times. Step ST32 of displaying the lock setting guide message is performed again (ST39).

Further, in step ST38 of determining whether the number data matches, the microprocessor 17 reads out the password stored in the password storage unit 25 when the input number data and the stored number data match, and then displays the LCD display unit 21. Indicated by) (ST39).

Then, when the user enters the password displayed in step ST40 by operating the keypad 20, the microprocessor determines whether the input password matches the stored password, and if it matches, releases the lock function of the terminal ( ST40) In step ST36, the process returns to the normal call waiting state.

That is, according to the embodiment described above, when the user inputs the question and answer to the terminal and sets the lock function, when the help key 20c is input, the microprocessor 17 enters the question answer storage unit 24. When the stored question is read out and displayed on the LCD display 21 and the number data corresponding to the response input through the keypad 20 matches the previously stored response number data, the password stored in the password storage unit 25 is read out. To display through the LCD display unit 21.

In addition, when the user inputs the displayed password by operating the keypad 20, the microprocessor 17 releases the lock function of the terminal and switches to the normal call waiting state when the stored password and the input password match. Done.

Therefore, when the user does not remember the password for releasing the lock function of the terminal, the user can confirm the stored password by releasing the help key of the terminal and answer the previously entered question to release the lock function of the terminal.

In addition, this invention is not limited to the said Example, It can variously deform and implement within the range which does not deviate from the technical summary of this invention.

As described above, according to the present invention, when the user enters a help key when the password for releasing the lock function of the terminal is forgotten, the terminal displays a pre-stored question, and when the response to the question matches By displaying the stored password, it is possible to realize a method and a device for releasing the lock function of the mobile communication terminal, which allow the user to enter the displayed password to release the lock function of the terminal.

Claims (6)

Key input means equipped with numeric keys, function keys and help keys, Password storage means for storing the password, Question and answer storage means for storing the questions and answers entered through the key input means, display means, and the locking function of the terminal A method of releasing a lock function in a mobile communication terminal having control means for controlling setting and execution; A question answer input mode setting step of setting a question answer input mode based on the key input of the key input means; A question answer storing step of storing a question and answer inputted through a key input means in a question answer storing means with the question answer input mode set; A lock function setting step of setting a lock function in the terminal when a lock function is selected through a key input means while the question and answer are stored; When the help key input is detected while the lock function is set, the pre-stored question is read from the question answer storage means and displayed through the display means. Question and answer determination step of determining; If the response inputted through the key input means matches the previously stored response in the question and answer determination step, the stored password is read and displayed through the display means, and when the password corresponding to the previously stored password is input through the key input means, the lock is locked. Method for releasing the lock function of a mobile communication terminal, characterized in that it comprises a step of releasing the lock function to release the function. The method of claim 1, And a question and response inputted through the key input means in the question and answer storage step are character or number data. The method of claim 1, The method for releasing the lock function of a mobile communication terminal, characterized in that for storing the password input through the key input means in the lock function setting step as a number data in the password storage means. A key input means having numeric keys, function keys and help keys; Password storage means for storing the password entered through the key input means, A question answer storage means for storing a question and a response inputted through the key input means; Display means for displaying the password, question and answer according to a control signal; The question and response input through the key input means are stored in the question answer storage means as data, and when the help key is selected while the lock function is set, the question stored in the question answer storage means is read and displayed through the display means. In addition, when the response inputted through the key input means matches the pre-stored response, the lock of the mobile communication terminal, characterized in that it comprises a control means for reading out the password stored in the password storage means and display control through the display means Deactivation device. The method of claim 4, wherein The control means, when the question answer input mode is selected through the key input means, switches the mode state of the terminal to the question answer input mode, and sends a question or response inputted through the key input means into a question or answer storage means. A device for releasing the lock function of a mobile communication terminal, characterized by storing as data. The method of claim 4, wherein And the control means releases the lock function set in the terminal when the password inputted through the key input means and the password stored in the password storage means match.