JP2003101640A - Mobile terminal - Google Patents

Abstract

(57) [Summary] [Problem] To provide a portable terminal that can be easily found when illegally used, allows an authorized user to quickly identify the unauthorized user, and prevents information leakage. I do. A password is input from an operation unit (4). At this time, the comparison unit 12 reads out a pre-registered password from the storage unit 15 and compares this password with the input password. If the input password is incorrect a predetermined number of times consecutively, it is determined that the password has been illegally used, and the photographing unit 6 photographs the user who has input the password. Then, the photographing data is transmitted to a telephone number registered in advance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile terminal having a function for dealing with illegal use by a person other than an authorized user.

[0002]

2. Description of the Related Art A portable terminal is used for carrying and using it.
There are not a few chances of losing it by misplacement or theft. In addition, if the mobile terminal is once lost and is illegally used by a person other than an authorized user (hereinafter referred to as an unauthorized user),
Important information may be leaked. Therefore, the conventional mobile terminal can be configured not to display important information unless the personal identification number or the like is input. As a result, the conventional mobile terminal protects important information.

In the invention disclosed in Japanese Unexamined Patent Publication No. 62-298893, in an automatic machine such as a cash automatic payment / deposit machine, an illegal user is photographed when it is judged to be illegal, thereby making it illegal. It is possible to identify users.

In the invention disclosed in Japanese Unexamined Patent Publication No. 9-27853, a mobile terminal automatically makes a call after determining that it is an unauthorized use, and notifies an authorized user of the unauthorized use.

[0005]

When the authorized user loses the mobile terminal and the mobile terminal is illegally used,
It is difficult for a legitimate user to know the illegal use immediately. It is also difficult for a legitimate user to identify an unauthorized user.

[0006] Further, there is a high possibility that an unauthorized user is moving with a portable terminal. Therefore, JP-A-62-29
It is difficult for a legitimate user to recover a lost mobile terminal just by taking an image as in the invention disclosed in Japanese Patent No. 8893.

In the invention disclosed in Japanese Unexamined Patent Publication No. 9-27853, when the power of the mobile terminal is turned off by an unauthorized user, the mobile terminal cannot make or receive calls. In addition, when the mobile terminal determines that the mobile terminal is illegally used, the battery is exhausted immediately because the mobile terminal performs a call operation for a long time while waiting. Therefore, when the authorized user notices the unauthorized use, there is a high possibility that the mobile terminal cannot communicate.

Further, mobile terminals in recent years may store information of persons registered in a telephone directory, personal information of authorized users, or personal identification numbers of various services. This information may include important information that could harm an authorized user if made known to a third party. If the personal identification number is decrypted by an unauthorized user, such information will be leaked. Therefore, protection only by the PIN code
It is insufficient to prevent the leakage of important information.

The object of the present invention is to provide the following information in case of unauthorized use:
It is an object of the present invention to provide a mobile terminal that can be easily discovered, an authorized user can quickly identify an unauthorized user, and can prevent information leakage.

[0010]

According to the present invention, in a portable terminal, if the communication means, the input means for inputting a personal identification number, and the input of the personal identification number are consecutively mistaken for a predetermined number of times, it is regarded as an illegal use. A mobile terminal, comprising: a control unit configured to judge and record the surrounding condition and to transmit the recorded surrounding condition from the communication unit.

According to the present invention, when the input of the personal identification number is repeated a predetermined number of times, it is judged as illegal use, the surrounding situation is recorded, and the control means for transmitting the recorded surrounding situation is provided. By being provided, the situation around the mobile terminal can be transmitted to another information terminal. Therefore, when there is an unauthorized use, it is possible to notify the authorized user of the situation around the mobile terminal.

Further, the present invention is characterized in that the recorded surrounding situation is an image of the surroundings.

According to the present invention, since the image of the surroundings of the portable terminal is taken as the situation around the portable terminal, the appearance of the unauthorized user can be notified.

Further, the present invention is characterized in that the recorded surrounding situation is surrounding voice.

According to the present invention, since the voice around the portable terminal is recorded as the situation around the portable terminal, the voice of the unauthorized user can be notified.

Further, the present invention is characterized in that the control means captures a still image every time the input means is operated after determining that the control means is illegally used.

According to the present invention, since the control means captures a still image each time the input means is operated, there is a possibility that the appearance of an unauthorized user can be captured rather than capturing a still image at regular intervals. high.

Further, the present invention is characterized in that the control means shoots a moving image for a certain period of time after determining that it is illegally used.

According to the present invention, the control means shoots a moving image for a certain period of time after determining that the user has illegally used the image. Therefore, there is a high possibility that the appearance of the illegal user can be taken rather than shooting a still image.

Further, the invention is characterized in that the control means records a voice for a certain period of time after judging that the control is illegal use.

According to the present invention, since the control means records the voice for a certain period of time after determining that the illegal use is made, for example, when the personal identification number is inputted by voice, the voice of the illegal user can be recorded. Probability is high.

Further, the present invention is characterized by having position information transmitting means for transmitting position information after the control means judges that the control information is illegally used.

According to the present invention, since the position information transmitting means for transmitting the position information is provided, the position information of the mobile terminal can be transmitted to another information terminal. Therefore, the location information of the mobile terminal can be notified when there is an unauthorized use.

Further, the present invention is characterized in that the control means transmits the recorded ambient condition from the communication means to a specific place or to a specific incoming call.

According to the present invention, since the control means sends the situation around the portable terminal to a specific place, it is possible to promptly notify an authorized user of any unauthorized use. In addition, since the control means transmits the situation around the mobile terminal to a specific incoming call from an authorized user, for example,
It is possible to reduce the total time required for communication as compared with the case of transmitting to a specific place every fixed time. Therefore, battery consumption can be reduced.

Further, the present invention is to turn on / off the power supply of the portable terminal.
When the power switch for switching the FF, the operating means including the input means, the display means for displaying the screen, and the control means are determined to be illegally used and then the power switch is turned off, the communication means and Power supply control means for turning off the operation means and the display means while the control means is turned on is provided.

According to the present invention, when the power switch is turned off after the control means determines that the use is illegal,
Since the power supply control means for maintaining the communication means and the control means in the ON state is provided, even if the power switch is turned off by an unauthorized user, the recording and transmission of the surrounding situation can be continued.

Further, the present invention is characterized in that it has means for erasing the stored information when an incoming call is received and a correct personal identification number is input after the control means judges that the control means is illegally used. To do.

According to the present invention, the means for erasing the stored information is provided, so that when there is an illegal use, the information which the unauthorized user does not want to be known is erased by the remote operation of the authorized user. be able to.

[0030]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

First, a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view of the mobile phone 10. The mobile phone 10 includes an antenna 1, an ear receiver 2, a display unit 3, an operation unit 4, a microphone 5 and a photographing unit 6.

The antenna 1 sends and receives communication radio waves.
The ear receiver 2 converts an audio signal into an audible sound. The display unit 3 displays a screen. The operation unit 4 is operated to input a personal identification number. The microphone 5 converts the voice input by the user into an electric signal. The photographing unit 6 photographs the surroundings.

FIG. 2 is a block diagram of the mobile phone 10. The mobile phone 10 includes a wireless unit 11, a comparison unit 12, a photographing unit 6, an operation unit 4, an external device interface 13, a control unit 14, a storage unit 15, a recording unit 16, a display unit 3, and a call unit 17.

The radio section 11 demodulates the received radio wave captured by the antenna 1 and modulates the radio wave transmitted to the base station. The comparison unit 12 compares the input personal identification number with the registered personal identification number. External device interface 13
Connects the mobile phone 10 to an external device. Control unit 14
Controls the entire mobile phone 10. The storage unit 15 stores a personal identification number and a remote personal identification number. The storage unit 15 also stores the telephone number of the destination of the recorded data. The personal identification number, the remote personal identification number, and the telephone number of the transmission destination are registered in advance by an authorized user. The recording unit 16 records surrounding voice. The call unit 17 corresponds to the ear receiver 2 and the microphone 5.

The mobile phone 10 protects functions such as a telephone directory with a personal identification number. The user inputs the personal identification number from the operation unit 4 in order to use those functions. At this time, the comparison unit 12 reads the registered personal identification number from the storage unit 15 and compares the personal identification number with the personal identification number input by the user. If the entered PIN matches the registered PIN, the user will
You can use those functions.

FIG. 3 is a flowchart showing the personal identification number input processing of this embodiment. The control unit 14 performs the following personal identification number input processing.

In step A1, the user inputs a personal identification number. In step A2, it is determined whether the illegal use flag is ON or OFF. If the illegal use flag is OFF, the process proceeds to step A3. If the illegal use flag is ON, the process proceeds to step A9. In step A9, the user who inputs the personal identification number is photographed by the photographing unit 6, and the process proceeds to step A3.

At step A3, the comparison section 12
The personal identification number input in step A1 is compared with the registered personal identification number. In step A4, the comparison result is judged. If the personal identification numbers match, the process proceeds to step A10, and the normal processing after the personal identification number is input is performed. Then, the personal identification number input process ends. If the personal identification numbers do not match, the process proceeds to step A5.

At step A5, the number of consecutive disagreements up to this time is determined. If the number of consecutive disagreements is N or more,
In step A6, the illegal use flag is turned on. That is, the user who inputs the personal identification number is determined to be an unauthorized user. In step A7, the user who inputs the personal identification number is photographed by the photographing unit 6. At step A8, a call to a specific telephone number registered in advance in the storage unit 15 is made to inform the authorized user that the user has been illegally used. In addition, the photographing data obtained in the process of step A7 is transmitted. The process of step A8 is performed when the user who is illegally using is not making communication such as voice call. This is to prevent the user who is illegally using it from being aware of it. Then, the personal identification number input process ends.

By the above processing, when there is an illegal use of the mobile phone 10, the authorized user can immediately know the illegal use. Moreover, since the user who inputs the personal identification number is photographed by the photographing unit 6, the appearance of the user can be photographed. Therefore, the user can be identified from the appearance of the user.

FIG. 4 is a flow chart showing the process of transmitting image data according to this embodiment. The authorized user is informed by the process of step A8 of FIG. 3 that the mobile phone 10 is illegally used from a specific phone registered in the storage unit 15 in advance. After that, the authorized user makes a call from the specific phone to the mobile phone 10 that has been illegally used. When the control section 14 receives an incoming call when the illegal use flag is ON, the control section 14 performs the following process of transmitting the captured data.

In step B1, the called number is compared with the registered telephone number. That is, it is determined whether the incoming call is from an authorized user.

If the incoming call is from an authorized user, the process proceeds to step B3. In step B3, the comparing unit 12 compares the added remote personal identification number with the registered remote personal identification number. If the remote passwords match, the process proceeds to step B4. In step B4, communication is started and the latest shooting data is transmitted. Then, in step B5, the communication ends. This communication is performed when a user who is illegally using the mobile phone 10 is not making a communication such as a voice call. Then, the process of transmitting the photographing data is completed.

If it is not an incoming call from an authorized user in step B1 or if the remote personal identification numbers do not match in step B3, the process proceeds to step B2. In step B2,
Perform normal incoming call processing. Then, the process of transmitting the photographing data is completed.

By the above processing, when there is an unauthorized use, the authorized user can obtain the latest shooting data by remote operation. Therefore, it is possible to easily identify an unauthorized user. In addition, since the communication is performed only when the authorized user receives the photographing data by the remote operation after notifying the unauthorized use in step A8 of FIG. 3, the battery consumption is small and the mobile phone 10 is turned on for a long time. Can be. Therefore, the possibility of collecting the illegally used mobile phone 10 increases. In addition, the possibility of taking a picture of an illegal user who is easily distinguishable increases.

FIG. 5 is a flow chart showing the processing for transmitting position information according to this embodiment. In the standby state and when the unauthorized use flag is ON, the control unit 14 performs the following position information transmission processing.

First, in step C1, it is determined whether or not the timer is operating. If the timer is operating, the position information transmission process ends. If the timer has expired and is not operating, the process proceeds to step C2. In step C2, position information measurement is performed. For example, GPS (Global P
The position information data by which the current position of the mobile phone 10 can be accurately known is created by acquiring the position information by the ositioning system). The location information data is PHS.
Like the location information service of (Personal Handyphone System), the peripheral base station is searched and the base station specific information (CS
ID) and its reception level may be obtained.

At step C3, the created position information data is transmitted to the telephone number destination registered in the storage unit 15 in advance. In step C4, the timer is started. Then, the processing for transmitting the position information ends.

Through the above processing, accurate position information of the mobile phone 10 can be transmitted to the authorized user at regular intervals. Further, the position information measurement and the position information transmission are not always carried out, but they are carried out at regular intervals, so that the power consumption is minimized and the tracking for a long time becomes possible.

FIG. 6 is a flow chart showing the power supply control processing of this embodiment. Mobile phones by unauthorized users 1
When the operation of turning off the power of 0 is performed, the control unit 14
Performs the following power supply control processing.

In step D1, the illegal use flag is ON.
Or OFF. If the illegal use flag is OFF, the process proceeds to step D2. In step D2, normal power OFF processing is performed. That is, all the functions of the mobile phone 10 are turned off. Then, the power supply control process ends. If the illegal use flag is ON, step D3
Proceed to. In step D3, the power range is turned off in the visible range of the user. That is, the operation unit 4 and the display unit 3, which are user interfaces, are turned off, and the other functions are kept on. Then, the power supply control process ends.

By the above processing, the control unit 14 can continue the processing shown in FIGS. 3 to 5 even if the power of the mobile phone 10 is turned off during illegal use. it can.

Next, a second embodiment of the present invention will be described with reference to FIGS. In this embodiment, the mobile phone 10 shown in FIGS. 1 and 2 is used.

FIG. 7 is a flowchart showing the personal identification number input processing of this embodiment. The processes other than step E7, step E8, and step E9 in FIG. 7 are the same as the processes other than step A7, step A8, and step A9 in FIG.

At steps E7 and E9, the recording section 16 records a voice for a certain period of time. At step E8, a call is made to a specific telephone number registered in advance in the storage unit 15 to inform the authorized user that the user has been illegally used. Further, in step E8, the recording data obtained in the process of step E7 is transmitted.

By the above processing, when there is an unauthorized use of the mobile phone 10, the authorized user can immediately know the unauthorized use. If the personal identification number is voice input, there is a high possibility that the voice of an unauthorized user can be recorded. Further, when an unauthorized user makes a voice call using the mobile phone 10, there is a high possibility that the voice of the unauthorized user can be recorded by recording a part of the voice call. Therefore, it is possible to identify the unauthorized user from the voice of the unauthorized user.

FIG. 8 is a flow chart showing the recording data transmission processing of this embodiment. The authorized user is notified by the process of step E8 of FIG. 7 that the mobile phone 10 is illegally used from a specific phone registered in the storage unit 15 in advance. After that, the authorized user makes a call from the specific phone to the mobile phone 10 that has been illegally used. When the unauthorized use flag is ON, the control unit 14 receives the incoming call and performs the following recording data transmission process.

In step F1, the called number is compared with the registered telephone number. That is, it is determined whether the incoming call is from an authorized user.

If the incoming call is not from the authorized user, the process proceeds to step F2. In step F2, normal incoming call processing is performed. Then, the process of transmitting the recording data is ended. If the incoming call is from an authorized user, the process proceeds to step F3. In step F3, the added remote security code is compared with the registered remote security code.

If the remote passwords match,
Go to step F4. In step F4, communication is started and the latest recorded data is transmitted. In step F5, the communication ends. This communication is performed when a user who is illegally using the mobile phone 10 is not making a communication such as a voice call. Then, the recording data transmission process ends. If the remote PINs do not match, step F5
Proceed to.

By the above processing, when there is an unauthorized use, the authorized user can obtain the latest recorded data by remote operation. Therefore, it is possible to easily identify an unauthorized user. In addition, since the communication is performed only when the authorized user receives the recording data by the remote operation after notifying the unauthorized use in step E8 of FIG. 7, the battery consumption is small and the mobile phone 10 is turned on for a long time. Can be. Therefore, the possibility of collecting the illegally used mobile phone 10 increases. In addition, the possibility of recording the voice of an illegitimate user who is easy to distinguish increases.

Also in this embodiment, the position information transmission process shown in FIG. 5 and the power supply control process shown in FIG. 6 may be performed.

Next, a third embodiment of the present invention will be described with reference to FIGS. 9 and 10. In this embodiment, the mobile phone 10 shown in FIGS. 1 and 2 is used.

FIG. 9 is a flowchart showing the personal identification number input processing of this embodiment. The processes other than step G7, step G8, and step G9 in FIG. 9 are the same as the processes other than step A7, step A8, and step A9 in FIG.

In steps G7 and G9, the recording unit 16 records the voice for a certain period of time, and the photographing unit 6 captures a moving image. In step G8, a call is made to a specific telephone number registered in advance in the storage unit 15 to inform the authorized user that the user has been illegally used.
In step G8, the recording data and the moving image data obtained in the process of step G7 are transmitted.

By the above processing, when there is an unauthorized use of the mobile phone 10, the authorized user can immediately know the unauthorized use. Also, authorized users can obtain both recorded data and moving image data. Therefore, it becomes possible to easily identify an unauthorized user.

FIG. 10 is a flow chart showing the process of transmitting the recording data and the moving image data of this embodiment.

The authorized user confirms that the mobile phone 10 is illegally used by the processing of step G8 in FIG.
The notification is given from a specific telephone registered in the storage unit 15 in advance. After that, the authorized user makes a call from the specific phone to the mobile phone 10 that has been illegally used. Control unit 14
When the unauthorized use flag is ON, when the incoming call arrives, the following recording data and moving image data transmission processing is performed.

The process other than step H4 in FIG.
Since the processing is the same as the processing other than F4 of No. 2, description thereof will be omitted.

At step H4, the recording data and the moving image data are transmitted. Through the above process, when there is an unauthorized use, the authorized user can obtain the latest recorded data and moving image data by remote operation. Therefore, it is possible to easily identify an unauthorized user. In addition, since communication is performed only when the authorized user receives the recording data and the moving image data by the remote operation after notifying the unauthorized use in step G8 of FIG. 9, the battery consumption is small and the mobile phone 10 is powered on. It can be turned on for a long time. Therefore, the possibility of collecting the illegally used mobile phone 10 increases.

Also in this embodiment, the position information transmission process shown in FIG. 5 and the power supply control process shown in FIG. 6 may be performed.

Next, a fourth embodiment of the present invention will be described with reference to FIG. In this embodiment, the mobile phone 10 shown in FIGS. 1 and 2 is used. Further, in this embodiment, the personal identification number input process shown in any one of FIGS. 3, 7, and 9 is performed.

FIG. 11 is a flowchart showing the information erasing process of this embodiment. Regular users are mobile phones 1
The fact that 0 is illegally used is notified from a specific telephone registered in the storage unit 15 in advance. After that, the authorized user makes a call from the specific phone to the mobile phone 10 that has been illegally used. When an incoming call arrives when the illegal use flag is ON, the control unit 14 performs the following information erasing process.

At step I1, the called number is compared with the registered telephone number. That is, it is determined whether the incoming call is from an authorized user.

If the incoming call is not from the authorized user, the process proceeds to step I2. In step I2, normal incoming call processing is performed. Then, the information erasing process ends. If the incoming call is from an authorized user, the process proceeds to step I3. In step I3, the added remote personal identification number is compared with the registered remote personal identification number.

If the remote personal identification numbers do not match, the process proceeds to step I2. If the remote passwords match, the process proceeds to step I4. In step I4, communication is started and the latest data is transmitted. This communication is performed when a user who is illegally using the mobile phone 10 is not making a communication such as a voice call. And step I
Go to 5.

At step I5, it is judged whether or not the important information erasing request from the authorized user is received. If not received, the process proceeds to step I7. In step I7, the communication ends. Then, the information erasing process ends. If so, go to step I6. In step I6, the important information set in advance is erased, and the process proceeds to step I7.

Through the above processing, the authorized user can immediately delete the important information stored in the mobile phone 10 when he / she knows that the mobile phone 10 is illegally used. Therefore, it becomes possible to prevent leakage of important information.

Also in this embodiment, the position information transmission process shown in FIG. 5 and the power supply control process shown in FIG. 6 may be performed.

In the above embodiment, the personal identification number is input from the operation unit 4 of the mobile phone 10, but it is also possible to input the personal identification number from other than the mobile phone 10. More specifically, the mobile phone 10 is connected to a device other than the mobile phone 10 such as a PC (Personal Computer) or a PDA (Personal Digital Assistant) via a wired or low-power wireless communication. User is a PC or PD
The device such as A is operated to input the personal identification number of the mobile phone 10.

FIG. 12 is a diagram showing an example of connection between the mobile phone 10 and a device other than the mobile phone 10. Cell phone 10
Is connected to the PC 20 via a low power radio. PC2
The camera 0 has a camera 21 for photographing and a display unit 22 capable of inputting and displaying. The user inputs the personal identification number of the mobile phone 10 from the display unit 22 of the PC 20. If the passwords match, the mobile phone 10 can be operated from the PC 20.

The camera 21 is a low-power wireless or PC.
It is connected to the mobile phone 10 via 20. Therefore, the camera 21 can also be operated from the mobile phone 10. The camera 21 may be directly connected to the mobile phone 10 by low power wireless communication without using the PC 20.

[0083]

As described above, according to the present invention, it is possible to notify the authorized user of the situation around the portable terminal when there is an unauthorized use. Therefore, the authorized user can obtain a clue for identifying the unauthorized user from the situation around the mobile terminal.

Further, according to the present invention, since it is possible to notify the authorized user of the appearance of the unauthorized user, it is possible to easily identify the unauthorized user.

Further, according to the present invention, since the voice of the unauthorized user can be notified to the authorized user, it is possible to easily identify the unauthorized user.

Further, according to the present invention, since the control means captures a still image each time the input means is operated, there is a high possibility that the appearance of an unauthorized user can be captured. Therefore, it is possible to further easily identify an unauthorized user.

Further, according to the present invention, since the control means shoots a moving image for a certain period of time when there is an illegal use, there is a high possibility that the appearance of the illegal user can be taken. Therefore, it is possible to further easily identify an unauthorized user.

Further, according to the present invention, since the control means records the voice for a certain period of time when there is an illegal use, there is a high possibility that the voice of the illegal user can be recorded. Therefore, it is possible to further easily identify an unauthorized user.

Further, according to the present invention, it is possible to notify the authorized user of the position information of the portable terminal. Therefore, even if an unauthorized user moves while holding a mobile terminal, the authorized user can know the position of the mobile terminal. Therefore, the authorized user can promptly collect the mobile terminal.

Further, according to the present invention, when there is an unauthorized use, the situation around the portable terminal is transmitted to a specific place,
Unauthorized use can be notified to authorized users. Upon receiving this notification, the authorized user can quickly deal with the unauthorized use. In addition, by transmitting the situation around the mobile terminal to a specific incoming call, it is possible to reduce communication time and battery consumption. Therefore, tracking for a long time becomes possible.

Further, according to the present invention, even if the power switch is turned off by an unauthorized user, the recording and transmission of the surrounding situation can be continued. Further, at this time, since the operation means and the display means are in the OFF state, the surrounding situation can be recorded and transmitted without being noticed by the unauthorized user.

Further, according to the present invention, it is possible to delete the information which the unauthorized user does not want to be known by the remote operation of the authorized user. Therefore, it is possible to prevent leakage of information that the unauthorized user does not want to know.

[Brief description of drawings]

FIG. 1 is a perspective view of a mobile phone 10.

FIG. 2 is a block diagram of the mobile phone 10.

FIG. 3 is a flowchart showing a personal identification number input process of the first embodiment.

FIG. 4 is a flowchart showing a process of transmitting captured image data according to the first embodiment.

FIG. 5 is a flowchart showing a process of transmitting position information according to the first embodiment.

FIG. 6 is a flowchart showing a power supply control process of the first embodiment.

FIG. 7 is a flowchart showing a personal identification number input process of the second embodiment.

FIG. 8 is a flowchart showing a recording data transmission process of the second embodiment.

FIG. 9 is a flowchart showing a personal identification number input process of the third embodiment.

FIG. 10 is a flowchart showing a process of transmitting recorded data and moving image data according to the third embodiment.

FIG. 11 is a flowchart showing a process of erasing information according to the fourth embodiment.

FIG. 12 is a diagram showing an example of a connection between the mobile phone 10 and a device other than the mobile phone 10.

[Explanation of symbols]

1 antenna 2 ear receiver 3 Display 4 operation part 5 microphone 6 Shooting department 10 mobile phones 11 radio section 12 Comparison section 13 External device interface 14 Control unit 15 memory 16 Recording section 17 Call Department

Claims (10)

[Claims] 1. A portable terminal, a communication means, an input means for inputting a personal identification number, and if the personal identification number is entered a predetermined number of times consecutively, it is judged as illegal use and the surrounding situation is recorded. And a control means for transmitting the recorded surrounding situation from the communication means. 2. The mobile terminal according to claim 1, wherein the recorded surroundings are surrounding images. 3. The mobile terminal according to claim 1, wherein the recorded surrounding situation is surrounding voice. 4. The mobile terminal according to claim 2, wherein the control unit captures a still image each time the input unit is operated after determining that the input is illegal. 5. The mobile terminal according to claim 2, wherein the control means shoots a moving image for a certain period of time after determining that the image is illegally used. 6. The mobile terminal according to claim 3, wherein the control means records voice for a certain period of time after determining that the control is illegally used. 7. The mobile terminal according to claim 1, further comprising a position information transmitting unit that transmits position information after the control unit determines that the illegal use is made. 8. The control means transmits the recorded ambient condition from the communication means to a specific place or to a specific incoming call, according to any one of claims 1 to 7. Mobile terminal described in one. 9. A power switch for switching on / off a power supply of a portable terminal, an operation means including the input means, a display means for displaying a screen, and the control means after determining that the control means is illegally used, 9. A power supply control means for turning off the operating means and the display means while the communication means and the control means are turned on when the power switch is turned off. The mobile terminal according to any one. 10. The control means comprises means for erasing stored information when an incoming call is received and a correct personal identification number is input after the control means judges that the control is illegal. The mobile terminal according to any one of 1 to 9.