JP2009049824A - Mobile terminal and locking method therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile terminal which can considerably reduce the risk of leak or rigging of data at the time of its theft/loss. <P>SOLUTION: The mobile terminal 1 includes a locking means (a lock manager 14) which causes a first lock state in which at least the terminal operation is inhibited. It has a prelocking means (a prelock manager 13) which indicates that it is at least in a preset second lock state and in a state in which it can accept key input for unlocking the second lock state, after a previously registered starting time elapses without terminal operation. It starts the locking means to cause the first lock state when no key input is made in the key input accepting state. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a mobile terminal and a lock method used therefor, and more particularly to a lock method that disables the operation of the mobile terminal and suppresses or deletes data stored in the mobile terminal.

  Currently, in portable terminals related to the present invention, data that can be confidential information such as schedules, e-mails, addresses, photos, etc. is held inside, and there is always a risk of information leakage in the case of theft or loss Yes. As a measure for preventing information leakage of portable terminals, there are a terminal lock function from a server and a lock function of the terminal itself (see, for example, Patent Document 1).

  In the method described in Patent Document 1, the data erasing time is set in the mobile terminal, and when the time elapses, the mobile terminal itself locks data (prohibits reading data) or erases the data in the mobile terminal. .

  This data erasing method will be described with reference to FIG. In FIG. 3, the lock setting manager 21 of the mobile terminal 2 notifies the lock timer 22 of the data erasure time when the owner of the mobile terminal 2 sets the data erasure time.

  The lock timer 22 generates a trigger and notifies the lock manager 23 when the data erasure time received from the lock setting manager 21 has elapsed. When receiving the trigger (when the data erasing time has elapsed), the lock manager 23 locks or erases the data in the portable terminal 2.

JP 2007-97023 A

  The portable terminal related to the present invention has a terminal lock function from the server or a lock function of the terminal itself in order to prevent data held inside from being leaked in the case of theft or loss. , With these means, there is a time lag from when the owner notices the theft or loss of the mobile device until it locks. In the case of a screen saver without a password, there is a security problem.

  In the method described in Patent Document 1 described above, emphasis is placed on preventing information leakage when the mobile terminal is lost, but the data erasure time is generally set in units of several tens of minutes or several hours. Therefore, there is a risk in the time interval from loss to data erasure. Further, in the method described in Patent Document 1, since data is erased, it takes a cost to restore the mobile terminal.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a portable terminal that can solve the above-described problems and can greatly reduce the risk of data leakage and unauthorized operation during theft and loss, and a locking method used therefor.

A portable terminal according to the present invention is a portable terminal including a lock unit that makes at least a first locked state in which terminal operation is disabled,
When the pre-registered start-up time has passed without the terminal operation being performed, at least in the second locked state set in advance and in the key input accepting state for releasing the second locked state Having pre-lock means to display,
When the key input with respect to the key input acceptance state is not normally performed, the lock unit is activated to enter the first lock state.

A locking method according to the present invention is a locking method used for a portable terminal that performs a locking process for at least a first locking state in which terminal operation is disabled,
The portable terminal is at least in a second locked state set in advance when a pre-registered start-up time has passed without the terminal operation being performed, and key input acceptance for releasing the second locked state Execute pre-lock processing to indicate that it is in a state,
When the key input with respect to the key input acceptance state is not normally performed, the lock process is activated to enter the first lock state.

  By adopting the configuration and operation as described above, the present invention provides an effect that the risk of data leakage or unauthorized operation can be greatly reduced during theft or loss.

  Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing an internal configuration of a portable terminal according to an embodiment of the present invention. In FIG. 1, the mobile terminal 1 includes a lock setting manager 11, a lock timer 12, a prelock manager 13, and a lock manager 14.

  In the lock setting manager 11, the owner of the mobile terminal 1 sets an unlock key, a dialog activation time, and a dialog display time. The lock timer 12 generates a trigger from the dialog activation time and dialog display time received from the lock setting manager 11.

  The pre-lock manager 13 receives a trigger from the lock timer 12, and displays a dialog, accepts a key input, and activates a screen saver. That is, the pre-lock manager 13 is at least in the second locked state set in advance when the pre-registered activation time has elapsed without the operation of the mobile terminal 1 and cancels the second locked state. Function lock processing for displaying that the key input is being accepted and for displaying the first lock state in which at least terminal operation by the lock manager 14 is disabled (locking various functions of the portable terminal 1) For example, a screen saver).

  The lock manager 14 locks the operation of the mobile terminal 1 to be disabled (first lock state) according to the determination result of the key input from the pre-lock manager 13, locks the data in the mobile terminal 1 (prohibits data reading). ) Or erase.

  When key input from the user of the portable terminal 1 is performed in response to the dialog display and key input reception in the pre-lock manager 13, if the key input is a registration key input, the pre-lock manager 13 performs pre-lock When the key input is an input other than the registration key, if the key input is unsuccessful or there is no input, the pre-lock is not released by the pre-lock manager 13 and the screen saver is activated.

  In the present embodiment, the two-stage lock method is used as a solution to achieve both the convenience and safety of the mobile terminal 1. The two-stage lock method includes pre-lock by the pre-lock manager 13 and lock by the lock manager 14. First, the pre-lock is activated in a short time such as several tens of seconds, and returns to the usable state by easy key input.

  When the pre-lock by the pre-lock manager 13 is released, the mobile terminal 1 can be used normally. If there is no key input or input, the pre-lock by the pre-lock manager 13 cannot be released, and user authentication or biometric authentication (biometric authentication) using identification information [eg, PIN (Personal Identification Number)] ) Is locked by a full-fledged lock manager 14 that requires (for example, fingerprint authentication).

  FIG. 2 is a flowchart showing the operation of the mobile terminal 1 of FIG. The operation of the portable terminal 1 according to the embodiment of the present invention will be described with reference to FIG. 1 and FIG.

  First, in the portable terminal 1, the owner of the portable terminal 1 registers the release key, the pre-lock activation time, and the key input time in the lock setting manager 11 (step S1 in FIG. 2). When the mobile terminal 1 is not operated and the prelock activation time registered in step S1 has elapsed, the prelock key input dialog is displayed in the prelock manager 13 on the mobile terminal 1 (step S2 in FIG. 2).

  In the mobile terminal 1, it is determined whether or not the key input is normally performed by the owner (step S3 in FIG. 2). If the key input fails or does not occur, the lock by the lock manager 14 is activated and the operation of the mobile terminal 1 is performed. Is disabled (step S4 in FIG. 2), and the confidential information of the portable terminal 1 is deleted (step S5 in FIG. 2). When the terminal is restored, the lock by the lock manager 14 is released on the portable terminal 1 (step S6 in FIG. 2).

  On the other hand, if it is determined in step 3 that the key input is successful, the portable terminal 1 releases the pre-lock by the pre-lock manager 13 and waits until the pre-lock activation time (step S7 in FIG. 2).

  In the application example of the present embodiment, it is possible to specify an easy pattern as a release key and a short time of about several tens of seconds as a pre-lock activation time. If there is no operation from the owner for about several tens of seconds, a key input dialog is displayed in the pre-lock manager 13 and can be easily released by performing key input within the time. If there is a mistake in key input, or if input within the time is not possible, the lock manager 14 locks.

  As described above, in the present embodiment, the pre-lock function (pre-lock manager 13) of the mobile terminal 1 prevents unauthorized use from a person other than the owner by simple key input without losing convenience. Therefore, the risk of data leakage or unauthorized operation when the mobile terminal 1 is stolen or lost can be greatly reduced.

  That is, as shown in FIG. 1, the present invention introduces a pre-lock manager 13 and provides a two-stage lock by the pre-lock manager 13 and the lock manager 14, thereby considering the convenience of the owner of the mobile terminal 1. In addition, the risk of unauthorized use and information leakage can be reduced by pre-locking at short intervals, and it can be restored to a usable state at a low cost by simple key input.

  As described above, when the mobile terminal 1 is lost or stolen, when the owner and the mobile terminal 1 are physically separated from each other, the present invention allows unauthorized access to the corporate system by unauthorized use by others. It is characterized by a mechanism that reduces the risk of information leakage. In the present invention, by providing the pre-lock by the pre-lock manager 13 of the mobile terminal 1, the convenience of the mobile terminal 1 is not impaired, and risks such as unauthorized use and information leakage can be reduced.

  The locking method according to the present invention is applied not only to a mobile phone but also to reduce the risk of theft and loss of devices such as PDAs (Personal Digital Assistants), smartphones and notebook PCs (Personal Computers) that can be carried around. Is possible.

It is a block diagram which shows the internal structure of the portable terminal by embodiment of this invention. It is a flowchart which shows operation | movement of the portable terminal of FIG. It is a block diagram which shows the internal structure of the portable terminal relevant to this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mobile terminal 11 Lock setting manager 12 Lock timer 13 Pre-lock manager 14 Lock manager

Claims (8)

A mobile terminal including at least a lock means for making a first locked state in which terminal operation is disabled,
When the pre-registered start-up time has passed without the terminal operation being performed, at least in the second locked state set in advance and in the key input accepting state for releasing the second locked state Having pre-lock means to display,
A portable terminal, wherein when the key input for the key input receiving state is not normally performed, the lock unit is activated to enter the first locked state. Including a plurality of functions operable by the terminal operation,
2. The portable terminal according to claim 1, wherein the pre-lock unit activates a process of locking the plurality of functions when the lock unit is activated. The locking means releases the first locked state when the user is authenticated by either user authentication based on identification information or user authentication based on biometric authentication,
The portable terminal according to claim 1 or 2, wherein the pre-lock unit releases the second locked state when a user is authenticated by the key input.   The portable terminal according to any one of claims 1 to 3, wherein the lock unit prohibits or deletes reading of data in the terminal itself at the time of activation. A locking method used for a portable terminal that performs a locking process for at least a first locked state in which terminal operation is disabled,
The portable terminal is at least in a second locked state set in advance when a pre-registered start-up time has passed without the terminal operation being performed, and key input acceptance for releasing the second locked state Execute pre-lock processing to indicate that it is in a state,
A locking method, wherein when the key input for the key input acceptance state is not normally performed, the lock process is activated to enter the first lock state. The portable terminal includes a plurality of functions operable by the terminal operation,
The locking method according to claim 5, wherein the portable terminal activates a process of locking the plurality of functions when the lock process is activated in the pre-lock process. When the mobile terminal authenticates the user by either user authentication by identification information or user authentication by biometric authentication in the lock process, the first lock state is released,
The locking method according to claim 5 or 6, wherein the portable terminal releases the second locked state when the user is authenticated by the key input in the pre-lock process.   The locking method according to any one of claims 5 to 7, wherein the portable terminal prohibits or deletes reading of data in the portable terminal when the lock process is started.

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