WO2014064866A1 - Mobile communication device, authentication information notification method, and non-temporary computer-readable medium in which program is stored - Google Patents

Abstract

The purpose of the present invention is to provide a mobile communication device, an authentication information notification program, and a method making it possible to improve security when the locked state is disengaged using voice authentication. This mobile communication device (10) is provided with: a display controller (13) for causing a display (14) to display authentication information different from the authentication information displayed on the previous occasion, and switching off the illumination of the display (14) after the authentication information is displayed on the display (14), upon detecting the timing at which the illumination of the display (14) is switched off; a voice recognition processor (11) for recognizing voice information inputted by a user; and a voice authentication unit (12) for performing voice authentication processing using the voice information and the authentication information displayed on the display (14), and determining whether or not to disengage the security state.

Description

Mobile communication device, authentication information notification method and non-transitory computer-readable medium storing program

The present invention relates to a mobile communication device, an authentication information notification method, and a program, and more particularly, to a mobile communication device, an authentication information notification method, and a program that execute voice authentication.

In general, a user who uses a mobile terminal device sets a security lock so that others do not use his mobile terminal device. As a method for releasing the security lock, it is common to use a password or the like input through a key operation or a touch panel operation by a user for authentication. However, the user may feel annoyed with the operation of inputting a password or the like through a key operation or a touch panel operation in order to release the security lock. For this reason, in order to eliminate the inconvenience of performing a predetermined operation for the user, it has been studied to apply the voice authentication technology to the release of the security lock.

Patent Document 1 discloses a technique for inputting a password used for releasing a locked state of a mobile phone using voice.

Japanese Patent Laid-Open No. 08-223281

However, in the voice authentication disclosed in Patent Document 1, a pre-registered word is used as a password for voice input. Therefore, when a person is present when performing voice input to the mobile phone, the password may be heard by another person. In such a case, if another person who heard the password subsequently obtains the mobile phone by some method, there is a problem that the other person's mobile phone can be operated by inputting the heard password.

In order to solve such problems, an object of the present invention is to provide a mobile communication device, an authentication information notification method, and a program capable of improving security when releasing a lock state using voice authentication. To do.

When the mobile communication device according to the first aspect of the present invention detects the timing when the illumination of the display unit is turned off, the authentication information different from the authentication information displayed last time is displayed on the display unit, After the authentication information is displayed on the display unit, a display control unit that turns off the illumination of the display unit, a voice recognition processing unit that recognizes voice information input from a user, the voice information, and the display unit A voice authentication unit that performs voice authentication processing using the displayed authentication information and determines whether or not to release the security state.

The authentication information notification method according to the second aspect of the present invention performs voice authentication processing using voice information input from a user and predetermined authentication information, and determines whether or not to release the security state. An authentication information notification method for notifying the authentication information used at the time of voice authentication, wherein when displaying a timing for turning off the illumination of the display unit, the authentication information different from the authentication information displayed last time is displayed. And the illumination of the display unit is turned off after the authentication information is displayed on the display unit.

The program according to the third aspect of the present invention performs voice authentication processing using voice information input from a user and predetermined authentication information, and at the time of voice authentication for determining whether or not to release the security state. A program for causing a computer to execute a process for notifying the authentication information to be used, and displaying the authentication information different from the authentication information displayed last time when the timing for turning off the illumination of the display unit is detected. Steps to display in the department,
And causing the computer to execute the step of turning off the illumination of the display unit after the authentication information is displayed on the display unit.

According to the present invention, it is possible to provide a mobile communication device, an authentication information notification method, and a program capable of improving the security when releasing the lock state using voice authentication.

1 is a configuration diagram of a mobile communication apparatus according to a first embodiment. 1 is a configuration diagram of a mobile communication apparatus according to a first embodiment. It is a figure which shows the screen transition concerning Embodiment 1. FIG. It is a figure which shows the flow of a process until a security lock is set from the normal screen concerning Embodiment 1. FIG. It is a figure which shows the flow of the security unlocking process concerning Embodiment 1. FIG. It is a figure which shows the flow of a process from the normal screen concerning Embodiment 2 to a security lock being set. It is a figure which shows the flow of a process from the normal screen concerning Embodiment 2 to a security lock being set.

(Embodiment 1)
Embodiments of the present invention will be described below with reference to the drawings. A configuration example of the mobile communication device 10 according to the first exemplary embodiment of the present invention will be described with reference to FIG. The mobile communication device 10 may be a mobile phone terminal, a smart phone terminal, a tablet terminal, or a personal computer having a communication function. The mobile communication device 10 includes a voice recognition processing unit 11, a voice authentication unit 12, a display control unit 13, and a display unit 14.

The voice recognition processing unit 11 recognizes voice information input from the user. For example, the voice recognition processing unit 11 converts analog data information of voice input via a microphone device or the like into digital data. The voice recognition processing unit 11 performs voice recognition processing on the voice information input from the user, and then outputs the processed voice information to the voice authentication unit 12.

The voice authentication unit 12 performs voice authentication processing using the voice information and authentication information output from the voice recognition processing unit 11. Specifically, the voice authentication unit 12 determines whether or not to release the security lock state by performing voice authentication in a state where the security lock is set in the mobile communication device 10. The authentication information is predetermined information, for example, password information. The voice authentication unit 12 determines that the authentication is successful if the voice information output from the voice recognition processing unit 11 matches the authentication information, and determines that the authentication fails if they do not match. The authentication information is not limited to one, and the mobile communication device 10 may hold a plurality of authentication information.

When the display control unit 13 detects the timing at which the illumination of the display unit 14 is turned off, the display control unit 13 displays the authentication information on the display unit 14, and after the authentication information is displayed on the display unit 14, the illumination of the display unit 14 is displayed. Is turned off. The user stores the authentication information displayed on the display unit 14 and inputs the authentication information as voice information when releasing the security lock state.

The display unit 14 is a display arranged on the surface of the mobile communication device 10, for example. The display can display character information, image information, or the like when illuminated. Illumination irradiated on the display is generated using a power supply supplied from a battery or the like included in the mobile communication device 10. When the display is no longer illuminated, audio information or image information is not displayed on the display. When the mobile communication device 10 transitions to the power saving mode or when the mobile communication device 10 is turned off, illumination of the display may be stopped.

Here, the timing at which the illumination of the display unit 14 is turned off may be the timing at which the mobile communication device 10 transitions from the normal operation state to the operation in the power saving mode. The mobile communication device 10 detects a key operation or a touch panel operation by a user, for example, and transitions to the power saving mode. Alternatively, the mobile communication device 10 may transition to the power saving mode when no key operation or touch panel operation by the user is detected for a predetermined period. Furthermore, the mobile communication device 10 may transition to the power saving mode after a specific function that is periodically executed is executed. For example, when the alarm clock function is mounted on the mobile communication device 10, the alarm clock function may be activated at a predetermined time, and then the mobile communication device 10 may transition to the power saving mode.

That is, the display control unit 13 detects the operation information for causing the user to shift the mobile communication device 10 to the power saving mode or detects the no-operation time longer than a predetermined time by the user. Control to turn off the light.

Furthermore, the display control unit 13 causes the display unit 14 to display authentication information before setting the display unit 14 to the no-light state. That is, the display control unit 13 causes the display unit 14 to display authentication information for a predetermined period before the display unit 14 is turned off. Here, the authentication information may have different contents each time the timing at which the illumination of the display unit 14 is turned off is detected. In this case, the display control unit 13 outputs the authentication information displayed on the display unit 14 to the voice authentication unit 12. The voice authentication unit 12 uses the authentication information output from the display control unit 13 to perform user voice information authentication processing.

As described above, by using the mobile communication device 10 according to the first embodiment of the present invention, the user can use the authentication information for releasing the security lock state every time the display unit 14 is turned off. Can be obtained. Furthermore, since the authentication information displayed on the display unit 14 is changed every time the state is changed to the security lock state, even if another person hears the voice information when inputting the voice information, the authentication information is frequently Therefore, the possibility that another person can release the security lock state of the mobile communication device 10 can be reduced. In addition, even when the authentication information is frequently changed, the user can confirm the authentication information before the display unit 14 is turned off, so that the changed authentication information can be reliably stored. it can.

Subsequently, a detailed configuration example of the mobile communication device 10 according to the first embodiment of the present invention will be described with reference to FIG. The mobile communication device 10 includes a voice recognition processing unit 11, a voice authentication unit 12, a display control unit 13, a display unit 14, a control unit 15, an input conversion unit 16, a sensor processing unit 17, a question answer generation unit 18, and a voiceprint data storage unit. 19 is provided. The voice recognition processing unit 11, the voice authentication unit 12, the display control unit 13, the display unit 14, the control unit 15, the input conversion unit 16, the sensor processing unit 17, and the question answer generation unit 18 are connected via a bus. Yes. In addition, with respect to the voice recognition processing unit 11, the voice authentication unit 12, the display control unit 13, and the display unit 14, differences from FIG. 1 will be mainly described below.

The control unit 15 controls the operation of each functional unit connected to the bus or the execution timing of processing. The control unit 15 may incorporate a microcomputer.

The input conversion unit 16 converts information input when a user operating the mobile communication device 10 performs a key operation or a touch panel operation into a format that can be recognized by the control unit 15 or the like. For example, when the user who operates the mobile communication device 10 inputs password information, the input conversion unit 16 converts the input password information into a format that can be recognized by the control unit 15, and the converted data to the control unit 15. Is output.

The sensor processing unit 17 detects the state of the mobile communication device 10 based on information output from the sensor device. For example, the sensor processing unit 17 may detect whether the user has touched the mobile communication device 10 using a proximity sensor and determine whether the user has picked up the mobile communication device 10. Further, the sensor processing unit 17 detects whether or not the user has moved the mobile communication device 10 using the acceleration sensor, and determines whether or not the user has moved the mobile communication device 10 to a position where the mobile communication device 10 is used. Good. For example, the sensor processing unit 17 may determine that the user has moved the mobile communication device 10 when the acceleration detected using the acceleration sensor exceeds a predetermined threshold. In addition, the state change of the mobile communication device 10 may be detected using various sensors.

The question answer generation unit 18 is displayed on the display unit 14 during a predetermined period before the display unit 14 enters the no-light state when the display control unit 13 detects the timing of turning off the illumination of the display unit 14. Question information and answer information are generated. The question information and the answer information may be generated differently each time the display control unit 13 detects the timing at which the illumination of the display unit 14 is turned off. For example, the question information and the answer information use user data stored in the mobile communication device 10. For example, the user data may be schedule data information, information on the last used WEB page, the number of outgoing or incoming calls, the current time, or the total number of downloaded applications. These user data are updated as time passes or the user operates the mobile communication device 10. Therefore, the question information and the answer information are generated with different contents each time they are generated. Alternatively, even when the same question information is generated, different information is generated each time the answer information is generated. Alternatively, in order to reliably generate information having contents different from the answer information generated last time, whether or not the user data has been updated is monitored, and question information and answer information related to the updated user data are generated. Good.

The user may arbitrarily set a predetermined period during which the question information and the answer information are displayed on the display unit 14.

Further, when the question answer generation unit 18 detects that the user has picked up the mobile communication device 10, the question answer generation unit 18 outputs the question information as voice information through a speaker or the like in order to prompt input of answer information.

As described in FIG. 1, the voice authentication unit 12 performs voice authentication processing using the voice information and authentication information output from the voice recognition processing unit 11. When the sensor processing unit 17 determines that the user has moved the mobile communication device 10 by hand, the voice recognition processing unit 11 activates the voice recognition function and transitions to a state of waiting for voice information input from the user. Also good.

Further, the voice authentication unit 12 identifies a voice print from the user's voice information input via the voice recognition processing unit 11 and determines whether or not it matches the user's voice print registered in the voice print data storage unit 19 in advance. May be. As described above, a third party who is not permitted to operate the mobile communication device 10 uses the voice authentication process using the voice information and the authentication information and the authentication process using the voice print data. Security for preventing the device 10 from being operated can be enhanced.

Further, when the voice recognition processing unit 11 recognizes voice information and the voice authentication unit 12 executes a process of specifying a voice print from the voice information, the voice information needs to be input over a predetermined time. There is. Therefore, when the voice recognition processing unit 11 receives input of voice information from the user, the user may use a fixed wording to secure a predetermined speech time. For example, the fixed phrase may be “Keyword is XX”. The answer information is used for XX. In addition, when the question answer generation unit 18 generates the question information and the answer information, it also generates information related to the fixed wording, and the display unit 14 is displayed during a predetermined period before the display unit 14 is turned off. Information about the fixed wording may be displayed.

Here, the screen transition from the normal screen to the screen in which the display unit 14 is turned off will be described with reference to FIG. Further, the display unit 14 is specifically described as an LCD (Liquid Crystal Display). First, the display unit of the mobile communication device 10 displays a normal screen such as a standby screen or a screen for displaying an application.

Next, the user performs an operation to turn off the LCD. The operation for turning off the LCD may be, for example, a specific button operation such as pressing a power button, or an operation of touching a specific place on the touch panel. Alternatively, the operation for turning off the LCD may include an operation for turning off the LCD by inputting voice information including a specific word. When the user performs an operation to turn off the LCD, the question information and the answer information are displayed on the LCD for a predetermined period. FIG. 3 illustrates an example in which “What is the schedule for XX month YY?” Is displayed as the question information. Furthermore, when the schedule of XX month YY registered in the scheduler of the mobile communication device 10 is “tennis”, “tennis” is displayed as answer information. Although not shown in FIG. 3, a fixed phrase that needs to be spoken when voice input of the answer information may be displayed together with the question information and the answer information.

When the predetermined period has elapsed after the question information and answer information are displayed, the LCD is turned off and a security lock is set on the mobile communication device 10.

Subsequently, the flow of processing from the normal screen according to the first embodiment of the present invention until the security lock is set will be described with reference to FIG.

First, the display control unit 13 detects the timing at which the LCD is turned off (S11). The timing at which the LCD is turned off may be when the user performs an operation to turn off the LCD via the input conversion unit 16 or when the operation information of the mobile communication device 10 is not detected for a certain period of time. For example, in a general smartphone terminal, the LCD is turned off when a power key is pressed. Further, in the smartphone terminal, after the LCD is turned off, the control unit 15 shifts to the sleep state.

Next, the question answer generation unit 18, when the timing for turning off the LCD is detected by the display control unit 13, the question information and the answer displayed on the LCD during a predetermined period before the LCD is turned off. Generate information. The question information is a word output from the speaker of the mobile communication device 10 at the next voice authentication, and the answer information is a word to be spoken by the user at the next voice authentication.

Next, after the question information and the answer information are displayed on the LCD for a predetermined period, the display control unit 13 turns off the LCD and sets a security lock on the mobile communication device 10. Here, the security lock is set at a timing when the LCD is turned off. The process of setting the security lock in the mobile communication device 10 may be performed by the voice authentication unit 12 or the control unit 15 or the like.

Subsequently, the flow of the security lock releasing process of the mobile communication device 10 according to the first embodiment of the present invention will be described with reference to FIG. First, the mobile communication device 10 is in a state where the LCD is OFF and a security lock is set (S21). Next, the sensor processing unit 17 determines whether or not the mobile communication device 10 has moved (S22). Here, when it is determined by the sensor processing unit 17 that the mobile communication device 10 has moved, the question answer generating unit 18 outputs the question information as voice information through a speaker or the like (S23). At this time, the LCD maintains a no-light state.

Next, the voice authentication unit 12 determines whether answer information is input as voice information from the user (S24). If it is determined that the answer information has been input, the voice authentication unit 12 determines whether the answer information matches the answer information displayed immediately before the LCD is turned off (S25). The answer information displayed immediately before the LCD is turned off may be held in the voice authentication unit 12 or may be held in another memory or the like in the mobile communication device 10.

When the voice authentication unit 12 determines that the input answer information matches the answer information displayed immediately before the LCD is turned off, the voice authentication unit 12 releases the security lock set in the mobile communication device 10. Further, the display control unit 13 turns on the illumination of the LCD (S26).

In step S25, if the voice authentication unit 12 determines that the answer information does not match the answer information displayed immediately before the LCD is turned off, the security lock state and the LCD off state are maintained (S29). .

In step S22, when it is determined by the sensor processing unit 17 that the mobile communication device 10 has not moved, the display control unit 13 determines whether an operation for turning on the LCD has been performed (S27). Normally, since the user picks up and moves the mobile communication device 10, it is considered that when the movement of the mobile communication device 10 is not detected, an operation for turning on the LCD is not performed. In step S <b> 27, for example, an operation when the user operates the mobile communication device 10 while the mobile communication device 10 is placed on a desk is applicable. When it is determined by the display control unit 13 that an operation to turn on the LCD has been performed, the control unit 15 inputs password information used to release the security lock state from the user via the input conversion unit 16. It is determined whether or not a release operation has been executed (S28). When it is determined that the release operation has been performed, the control unit 15 releases the security lock (S26).

In step S24, when the voice authentication unit 12 determines that the answer information has not been input after the question information is output through a speaker or the like, the process proceeds to step S28.

In step S28, when it is determined that the release operation has not been executed, the control unit 15 maintains the LCD OFF state and the security lock state (S29). Furthermore, when it is determined in step S27 that the operation for turning on the LCD is not performed by the display control unit 13, the control unit 15 maintains the OFF state and the security lock state of the LCD (S29).

As described above, by using the mobile communication device 10 according to the first embodiment of the present invention, the authentication information used for voice authentication is displayed in a predetermined period before the display unit 14 is turned off. 14 can be displayed. Thereby, the user of the mobile communication device 10 can recognize the authentication information input as voice information when releasing the security lock. Further, as authentication information, different contents are displayed at each timing when the display unit 14 is turned off. Therefore, even if the authentication information is frequently heard when the user utters the authentication information, the authentication information is frequently changed, so the security lock can be released with the acquired authentication information. Disappear. In this way, the security of the mobile communication device 10 can be improved.

Further, when the user unlocks the security lock and uses the mobile communication device 10 by hand, the question information is output from the speaker or the like. The user can release the security lock by speaking the answer information to a microphone or the like. This eliminates the need for troublesome button operations or touch panel operations to release the security lock.

(Embodiment 2)
Next, the flow of processing from the normal screen according to the second embodiment of the present invention until the security lock is set will be described with reference to FIG.

First, the display control unit 13 detects the timing when the LCD is turned off (S31). Next, the control unit 15 determines whether or not an operation for turning off the LCD is performed by a user operating the mobile communication device 10 (S32).

When the control unit 15 determines that an operation for turning off the LCD, such as a specific button operation or touch panel operation, is explicitly performed by the user, the question answer generation unit 18 determines that the LCD is in a no-light state. Question information and answer information to be displayed on the LCD during a predetermined period of time are generated (S33).

Next, after the question information and the answer information are displayed on the LCD for a predetermined period, the display control unit 13 turns off the LCD and sets a security lock on the mobile communication device 10 (S34).

In Step S32, when it is determined by the control unit 15 that the operation for turning off the LCD is not performed, the process proceeds to Step S34. Here, the case where the operation for turning off the LCD is not executed is, for example, a case where the operation information is not detected when the user does not operate the mobile communication device 10 for a certain period of time. In such a case, since the possibility that the user is viewing the display unit 14 is low, the question information and the answer information are not displayed on the display unit 14. In such a case, the user may release the security lock state by inputting password information or the like. Alternatively, when the LCD is turned off without performing the LCD off operation, the previously displayed question information and answer information may be authentication information used for releasing the security lock state.

As described above, by using the processing flow from the normal screen according to the second embodiment of the present invention until the security lock is set, the question information and the answer are based on the cause of the LCD being turned off. It can be determined whether or not to display information on the display unit 14. Thereby, when there is a high possibility that the user does not visually recognize the display unit 14, the question information and the answer information are not displayed on the display unit 14, so that the power consumption of the mobile communication device 10 can be reduced. it can.

(Embodiment 3)
Subsequently, the flow of the security lock releasing process of the mobile communication device 10 according to the third embodiment of the present invention will be described with reference to FIG. Steps S41 to S46 are the same as steps S21 to S26 of FIG. In step S44, the voice authentication unit 12 differs from the process in FIG. 5 when it is determined that the answer information is not input after the question information is output via a speaker or the like. Specifically, in step S44, when the voice authentication unit 12 determines that the answer information has not been input after the question information is output via a speaker or the like, the process proceeds to step S48. Details of the processing after step S47 including step S48 will be described below.

In step S42, when it is determined by the sensor processing unit 17 that the mobile communication device 10 has not moved, the display control unit 13 determines whether an operation for turning on the LCD has been performed (S47). If the display control unit 13 determines that an operation to turn on the LCD has been performed, the display control unit 13 displays only the question information displayed on the LCD before the LCD is turned off on the display unit 14 (S48). Here, the question information is displayed on the display unit 14 in order to prompt the user to input answer information. Therefore, in order to prevent a user who is not authorized to operate the mobile communication device 10 from releasing the security lock, the release information is not displayed in step S48.

Next, the voice authentication unit 12 determines whether answer information is input as voice information (S49). When answer information is input, the voice authentication unit 12 performs an authentication process (S45). When answer information is not input as voice information, the control unit 15 determines whether password information or the like used for canceling the security lock state is input from the user via the input conversion unit 16, that is, a release operation is performed. It is determined whether it has been executed (S50). When it is determined that the release operation has been performed, the control unit 15 releases the security lock (S46).

In step S50, when it is determined that the release operation has not been executed, the control unit 15 maintains the LCD OFF state and the security lock state (S51). Furthermore, when it is determined in step S47 that the operation for turning on the LCD is not performed by the display control unit 13, the control unit 15 maintains the OFF state and the security lock state of the LCD (S51).

As described above, by using the flow of the security unlock processing of the mobile communication device 10 according to the third embodiment of the present invention, for example, even when the user forgets the answer information, the question is displayed on the display unit 14. By displaying the information, it is possible to prompt the user to recall the answer information. Therefore, when the answer information can be remembered by visually recognizing the question information, it is not necessary to perform a canceling operation such as password entry, and the convenience of the user can be improved.

(Other embodiments)
The voice authentication according to the present invention can be applied to the operation upon arrival. In general, when an incoming call is received, it is not necessary to unlock the manual input by the user. This is because priority is given to the start of a call in consideration that there is a possibility that an incoming call cannot be received because it takes time to release the lock when manual unlocking is required at the time of the incoming call. However, even when the screen is locked when an incoming call is received, the above problem can be solved by using the method for unlocking the mobile terminal device using the voice recognition of the present invention.

For example, it is assumed that voice authentication is possible when an incoming call is detected. The contents to be uttered at this time are the following 1) or 2).
1) Fixed wording for unlocking when receiving an incoming call (eg “Start a call”)
2) Answer wording of the present invention

Here, security is higher in 2) than in 1). This is because in the case of 2), the authentication information used for voice authentication is frequently updated. When the user speaks and voice authentication is determined to be the person, the call is started. By the way, when an incoming call is received, the LCD turns on and an incoming call screen is displayed. When the above 2) is applied, “Question” is displayed on the incoming call screen. As an effect obtained by this application example, if the user can determine who has received an incoming call even when the mobile terminal device is at a distance from the incoming call (for example, the tone of the ringtone), It is possible to start a call, and the possibility of missing the start of the call is reduced.

Note that the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the spirit of the present invention. For example, the process in FIG. 5 according to the first embodiment of the present invention is executed after the process in FIG. 4 according to the first embodiment of the present invention or after the process in FIG. 6 according to the second embodiment of the present invention. Also good. Further, the process in FIG. 7 according to the second embodiment of the present invention may be executed after the process in FIG. 4 according to the first embodiment of the present invention or after the process in FIG. 6 according to the second embodiment of the present invention. Good.

In the above-described embodiment, the hardware configuration has been described. However, the present invention is not limited to this, and the processing in FIGS. 4 to 7 is realized by causing a CPU (Central Processing Unit) to execute a computer program. It is also possible. In this case, the computer program can be stored and supplied to a computer using various types of non-transitory computer readable media. Non-transitory computer readable media include various types of tangible storage media (tangible storage medium). Examples of non-transitory computer-readable media include magnetic recording media (eg flexible disks, magnetic tapes, hard disk drives), magneto-optical recording media (eg magneto-optical discs), CD-ROMs (Read Only Memory), CD-Rs, CD-R / W, semiconductor memory (for example, mask ROM, PROM (Programmable ROM), EPROM (Erasable ROM), flash ROM, RAM (random access memory)) are included. The program may also be supplied to the computer by various types of temporary computer-readable media. Examples of transitory computer readable media include electrical signals, optical signals, and electromagnetic waves. The temporary computer-readable medium can supply the program to the computer via a wired communication path such as an electric wire and an optical fiber, or a wireless communication path.

The present invention has been described above with reference to the embodiment, but the present invention is not limited to the above. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the invention.

This application claims priority based on Japanese Patent Application No. 2012-234377 filed on October 24, 2012, the entire disclosure of which is incorporated herein.

DESCRIPTION OF SYMBOLS 10 Mobile communication apparatus 11 Voice recognition process part 12 Voice authentication part 13 Display control part 14 Display part 15 Control part 16 Input conversion part 17 Sensor process part 18 Question answer generation part 19 Voiceprint data storage part

Claims (13)

When detecting the timing when the illumination of the display means is turned off, the authentication information different from the authentication information displayed last time is displayed on the display means, and the display is performed after the authentication information is displayed on the display means. Display control means for turning off the lighting of the means, voice recognition processing means for recognizing voice information input from the user,
A mobile communication apparatus comprising: voice authentication means that performs voice authentication processing using the voice information and the authentication information displayed on the display means to determine whether or not to release the security state. The timing when the illumination of the display means is turned off is the timing when the user performs the operation of turning off the illumination of the display means, or the timing when the user does not operate the mobile communication device for a predetermined period. The mobile communication device according to claim 1, wherein The display control means includes
The mobile communication device according to claim 1 or 2, wherein the authentication information is displayed on the display means at a timing at which a function mounted on the mobile communication device is periodically executed. The display control means includes
The mobile communication device according to claim 1, wherein the display unit displays question information and answer information for the question information as the authentication information. The question information and the answer information are:
5. The mobile communication device according to claim 4, wherein the mobile communication device is generated each time the user data stored in the mobile communication device is displayed on the display means. The user data is
6. The mobile communication device according to claim 5, comprising at least one of schedule data information, last used WEB page, number of outgoing or incoming calls, current time, and total number of downloaded applications. The voice authentication means is
The voice authentication process is performed according to any one of claims 4 to 6, wherein it is determined whether or not the answer information input as voice from the user matches the answer information displayed on the display means. The mobile communication device described. The voice authentication means is
The mobile communication according to claim 7, further comprising: performing voice authentication processing by determining whether a voice print extracted from voice information input from the user matches a voice print of the user registered in advance. apparatus. The question information and the answer information are:
When the user performs an operation to turn off the illumination of the display unit, the display unit displays the display unit. When the user does not operate the mobile communication device for a predetermined period, the display unit displays The mobile communication device according to any one of claims 4 to 8, which is not displayed. The operation information input means for receiving an operation for canceling the unlit state of the illumination via a manual operation from the user when the answer information is not input as the audio information from the user. 2. The mobile communication device according to item 1. The display control means includes
The movement according to any one of claims 4 to 9, wherein when the voice information is not input from a user, only the question information is displayed on the display means, and the user is prompted to input the answer information by voice. Communication device. An authentication information notification method for performing voice authentication processing using voice information input from a user and predetermined authentication information and notifying the authentication information used at the time of voice authentication for determining whether to release the security state Because
When detecting the timing of turning off the illumination of the display unit, the authentication information different from the authentication information displayed last time is displayed on the display unit,
An authentication information notification method in which the display unit is turned off after the authentication information is displayed on the display unit. A process of performing voice authentication processing using voice information input from a user and predetermined authentication information and notifying the computer of the authentication information used at the time of voice authentication for determining whether or not to release the security state A non-transitory computer readable medium storing a program to be executed,
When detecting the timing when the illumination of the display unit is turned off, the step of displaying authentication information different from the authentication information displayed last time on the display unit;
A non-transitory computer-readable medium storing a program for causing a computer to execute the step of turning off the illumination of the display unit after the authentication information is displayed on the display unit.

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