JPH09322246A - Radio portable terminal equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To execute the security function automatically by allowing a radio portable terminal equipment to receive and extract a radio base station identification code, to compare the extracted CSID with a specific CS-ID stored in advance so as to verify the user of the terminal equipment. SOLUTION: A radio data processing section 1 receives data from a radio base station and provides an output of the data to a reception data processing section 2 and a radio base station identification code (NSC) extract section 6 respectively. The NSC extract section 6 extracts the NSC from the received data and informs it to an NSC comparator section 8. The NSC comparison section 8 compares the received NSC with the specific CS-ID stored in a specific CS-ID storage section 7 and activates a protection function to limit a function of a radio portable terminal equipment section 11 when the both are different. On the other hand, the section 8 releases the limit of the function of the radio portable terminal equipment 11 when the both are identical to each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless mobile terminal device, and more particularly to improving a security function when a terminal is used.

[0002]

2. Description of the Related Art In recent years, wireless mobile terminal devices represented by mobile phones and information terminals are very often used outdoors. In addition, the shipment of wireless mobile terminals is growing very rapidly, and the trend will be remarkable in the future. Along with this, the chances of losing the wireless mobile terminal device tend to increase.

In view of the above situation, conventionally, regarding the protection function when the portable terminal device is lost, the wireless portable terminal has a mechanism for providing the protective function by the user himself setting a password. There are many mobile terminals.

Further, for example, in the "portable terminal device and security method thereof" disclosed in Japanese Patent Laid-Open No. 7-193865, when the wireless portable terminal is lost, a call is made to the wireless portable terminal and the wireless portable terminal is called. There is one that communicates with a terminal and activates its security function so that the wireless mobile terminal is not used illegally.

[0005]

The conventional wireless mobile terminal device is configured as described above, and the password often works to restrict some functions of the wireless mobile terminal device.
Most of them are for telephone numbers that you do not want others to know. Further, even if the password has a function that prevents the wireless mobile terminal device itself from being used, the password is within a range that the user can memorize, and a person who illegally acquires the wireless mobile terminal device can make trial and error. If the password is entered many times during that time, the protection function may be canceled and the function may not work.

Further, as disclosed in Japanese Patent Laid-Open No. 7-193865, in a method of making a call to a wireless mobile terminal and preventing the wireless mobile terminal from being illegally used, the lost person calls the wireless mobile terminal. If you do not notice the loss of the wireless mobile terminal, it may be used illegally. Further, when there is a wireless mobile terminal in a place where radio waves do not reach (dead zone), the protection function by the above method cannot be executed.

The present invention has been made in order to solve the above problems, and even if a wireless portable terminal is lost and a third party acquires it, the lost person automatically recognizes the loss. It is an object of the present invention to provide a wireless mobile terminal device that executes a security function.

[0008]

A wireless mobile terminal device according to the first invention of the present application includes a plurality of wireless base stations each transmitting a wireless base station identification code for specifying a wireless base station, and among these wireless base stations. In a wireless mobile terminal device that communicates through one of the wireless base station, the wireless base station identification code is received and extracted, and the extracted wireless base station identification code and a wireless base station preset by a specific wireless base station are transmitted. An authentication means is provided for comparing the identification code (specific CS-ID) and authenticating the user of the wireless mobile terminal device based on the comparison result.

The wireless mobile terminal device according to the second invention of the present application is the wireless mobile terminal device according to the first invention, wherein the received wireless base station identification code and the previously stored specific CS-
The ID is compared, and if they are different, the protection function is automatically set for the wireless mobile terminal device.

A wireless mobile terminal device according to the third invention of the present application is the wireless communication terminal device according to the second invention, wherein the specific CS-ID is used.
Reception elapsed time measuring means for measuring a time (reception elapsed time) elapsed from the time when the specific CS-ID cannot be received until the next time the specific CS-ID is received, and the protection function after the specific CS-ID cannot be received. The wireless base station which has a protection function operation delay time storing means for storing a time until the operation (protection function operation delay time) and a comparing means for comparing the reception elapsed time with the protection function operation delay time. When the identification code and the preset specific CS-ID are different, and the comparison result by the comparing means determines that the protection function operation delay time is larger, the setting start of the protection function is started. If a delay is made and communication with any radio base station becomes possible, and on the other hand, the comparison result by the comparison means determines that the reception elapsed time is larger, the protection is performed. In which capacity is to be set.

A wireless mobile terminal device according to a fourth aspect of the present invention is the specific C extracted according to the first aspect.
Compare the S-ID with a preset specific CS-ID,
When it is determined that the two are the same, the protection function that has been set is automatically canceled.

A wireless portable terminal device according to a fifth aspect of the present invention is the system setting of the wireless portable terminal device according to any one of the second to fourth aspects, when the protection function is set. The value cannot be changed.

Further, a wireless portable terminal device according to a sixth aspect of the present invention is the wireless portable terminal device according to any one of the second to fourth aspects, further comprising a protection function notifying means for notifying a user of whether or not the protection function is set. It is a thing.

A wireless mobile terminal device according to a seventh aspect of the present invention is the wireless mobile terminal device according to the second or third aspect of the invention, further comprising a start detecting means for detecting that the wireless mobile terminal device is activated. When set, the protection function is not released even when the activation of the wireless mobile terminal device is detected by the activation detection means.

The wireless portable terminal device according to an eighth invention of the present application is the wireless mobile terminal device according to the third invention, wherein a password storage means for storing a preset password, a password input means for inputting the password from the outside, and an input. A protection function holding time storing means for storing the time (holding time) for suspending the setting of the protection function, and inputting the preset password to protect the protection function. The setting of the protection function set after the reception time elapses until the hold time elapses until is set, and the hold is automatically released after the hold time elapses.

The wireless mobile terminal device according to the ninth invention of the present application is the wireless mobile terminal device according to the second invention, wherein the received wireless base station identification code and the previously stored specific CS-
If the IDs are compared and the two are different, the wireless base station identification code currently received by the wireless mobile terminal device is notified to the contact set in advance by the user, or the function of the wireless mobile terminal device is restricted. Either the operation is performed or the specific information stored in the wireless mobile terminal device is erased.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION

(Embodiment 1) FIG. 1 is a configuration diagram of a wireless mobile terminal device according to Embodiment 1 of the present invention. A plurality of wireless base stations each transmitting a wireless base station identification code for identifying its own station. 2 illustrates an example of a wireless mobile terminal device that communicates through one of the. In FIG. 1, a wireless mobile terminal device 100 includes a wireless mobile terminal unit 11 and an authentication unit 10. The wireless mobile terminal unit 11 further includes a wireless data processing unit 1, a received data processing unit 2, and an output unit. 3, a transmission data processing unit 4, and an input unit 5, and the authentication unit 10 includes a wireless base station identification code extraction unit 6, a specific CS-ID (radio base station identification code) storage unit 7, and a wireless base station. A station identification code comparison unit 8 and a protection function processing unit 9 are included.

More specifically, the wireless data processing unit 1 receives data from a wireless base station (not shown) and transmits data to the wireless base station. The received data is output to the reception data processing unit 2 and the radio base station identification code extraction unit 6, respectively, and the data to be transmitted is input from the transmission data processing unit 4. Also, negotiation with the wireless base station
It also performs data codec (encoding / decoding).

The reception data processing unit 2 extracts voice and data from the reception data received by the wireless data processing unit 1. The extracted voice / data is sent to the output unit 3.

The output section 3 allows the user to hear the voice / data extracted by the received data processing section 2 and outputs it to the display device. Here, as a method of outputting voice and data, a method of outputting voice using a speaker and data using an LCD (liquid crystal display), an earphone, a C
There is a method of using RT (CRT).

The input unit 5 is used by the user for the wireless portable terminal device 10.
This is a part for inputting data with respect to 0. As this input means, a microphone is used for inputting voice and a keyboard is used for inputting data. An input method other than using a microphone or a keyboard may be used.

The transmission data processing unit 4 notifies the wireless data processing unit 1 of the voice / data input from the input unit 5 and requests the voice / data transmission.

The radio base station identification code extracting section 6 extracts the radio base station identification code from the received data, and the extracted radio base station identification code is compared with the radio base station identification code comparing section 8
To notify.

The specific CS-ID storage unit 7 stores the identification code (specific CS-I) of the specific radio base station set by the user.
D) is stored and the wireless base station identification code comparison unit 8 is stored.
The wireless base station identification code is notified to the. This wireless base station identification code is used for authentication of a wireless mobile terminal and is different for each wireless base station.

The radio base station code comparison unit 8 compares the received radio base station identification code with the stored specific CS-ID. If the comparison results in that both are the same, the protection function processing unit 9 Notify that both are "equal". Also,
If they are different as a result of the above comparison, the protection function processing unit 9 is notified that they are “different”.

Then, in the protection function processing unit 9, if the radio base station identification code and the specific CS-ID are "different" according to the notification from the radio base station identification code comparison unit 8, the protection function is operated to activate the radio portable terminal. The function of the unit 11 is restricted. On the other hand, when the wireless base station identification code and the specific CS-ID are “equal”, the protection function is canceled and the wireless mobile terminal unit 1 is released.
Release the function restriction of 1.

The operation of the wireless mobile terminal device having the above configuration will be described below with reference to the flowchart shown in FIG. In step S1, the wireless mobile terminal device 100
Is data (carrier signal) from a radio base station (not shown)
To receive. Then, in step S2, the wireless base station identification code is extracted from the received data and compared with the specific CS-ID stored in advance. If the two are "equal", the process proceeds to step S3 to cancel the protection function, that is, the protection function of the wireless mobile terminal unit 11 is canceled.
After that, the process ends (RTN).

On the other hand, if the two are "different" in the comparison in step S2, the process proceeds to step S4, the protection function is set, and the function restriction of the wireless mobile terminal unit 11 is set. After that, the process ends (RTN).

As described above, according to the first embodiment,
The wireless mobile terminal device 100 is in a state of being able to communicate only with a specific wireless base station set by the user, and when the wireless mobile terminal device 100 is lost, does not notice the loss, or is stolen. However, a third party can only communicate with the specific radio base station, and therefore cannot be used in an area out of service of the specific base station, and the protection function is automatically executed. It will be. When the lost wireless mobile terminal device returns to the legitimate user, the wireless mobile terminal device 100 communicates with the wireless base station normally used by the user to set the wireless mobile terminal device 100. Upon receiving the specified specific CS-ID, the protection function is automatically released without any action by the user, and the wireless mobile terminal device is ready for use again.

(Embodiment 2) FIG. 3 is a diagram showing a configuration of a wireless mobile terminal device according to Embodiment 2 of the present invention.
In a wireless mobile terminal device that communicates through one of a plurality of wireless base stations that each transmit a wireless base station identification code for identifying its own station, a service of a wireless base station that is not set in the wireless mobile terminal device by itself It is provided with a configuration that prevents the above-mentioned protection function from automatically working and causing a trouble to oneself when moving to the area.

In FIG. 3, the wireless portable terminal device 101
Is composed of a wireless mobile terminal unit 11 and an authentication unit 19. Further, the wireless mobile terminal unit 11 is the same as in the first embodiment, and the wireless data processing unit 1, the received data processing unit 2, the output unit 3, and the transmission data. The authentication unit 19 includes a processing unit 4 and an input unit 5. In addition to the configuration of the first embodiment, the authentication unit 19 includes a reception elapsed time measurement unit 20 and a protection function operation time storage unit 21.
And a protection function operating time comparison unit 22 are added.

Here, the radio base station code comparison unit 8 compares the received radio base station identification code with the specific CS-ID stored in the specific CS-ID storage unit 7, and in the comparison result, the two If they are equal, the protection function processing unit 9 and the reception elapsed time measuring unit 20 are notified that they are “equal”. On the other hand, if they are different from each other in the comparison result, the protection function operation time comparison unit 22 is notified that they are “different”.

The elapsed reception time measuring unit 20 uses the specified CS-I.
The protection function operating time comparison unit 22 is notified of the time elapsed from the time when D cannot be received, and the radio base station identification code comparison unit 8 notifies that the radio base station identification code and the specific CS-ID are “equal”. In this case, the elapsed reception time is deleted.

The protection function operating time storage unit 21 stores the specific CS
-Notify the protection function operation time comparison unit 22 of the time from the reception of the ID until the protection function operates. The protection function operation time comparison unit 22 compares the reception elapsed time with the protection function operation time, and if the protection function operation time has elapsed, notifies the protection function processing unit 9 that the protection function operation time has elapsed. If it has not elapsed, the protection function processing unit 9 is notified that the protection function operation time has not elapsed.

Then, the protection function processing unit 9 sets the protection function when the protection function operation time comparison unit 22 notifies that the protection function operation time has passed, and sets the wireless mobile terminal unit 1
Restrict the function of 1. On the contrary, from the radio base station identification code comparison unit 8, the radio base station identification code and the specific CS-I
When it is notified that D is equal to each other or when the protection function operation time comparison unit 22 notifies that the protection function operation time has not elapsed, the protection function processing unit 9 releases the protection function, and the protection function processing unit 9 releases the protection function. The function restriction of the terminal unit 11 is released.

The operation of the wireless mobile terminal device having the above configuration will be described below with reference to the flowchart shown in FIG. In step S5, the wireless mobile terminal device 101
Receives data from a radio base station (not shown). Then, in step S6, the wireless base station identification code is extracted from the received data, and the specific CS-stored in advance is stored.
Compare with ID. If both are "equal" here, the process proceeds to step S7, the reception elapsed time is erased, the protection function is further released, and the function restriction of the wireless mobile terminal is released. Then, the processing is ended (RTN).

On the other hand, if they are "different" in the comparison in step S6, the process proceeds to step S8 to compare the elapsed reception time with the protection function operation time. If it is determined that the protection function operation time has elapsed, the process proceeds to step S9 to set the protection function. After that, the process ends (RT
N). On the other hand, if it is determined in step S8 that the protective function operating time has not elapsed, the process proceeds to step S10 to cancel the protective function. Then, the processing is ended (RTN).

As described above, according to the second embodiment, the wireless mobile terminal device 101 can receive an arbitrary wireless signal until the preset protection function operating time elapses, even when the specific CS-ID cannot be received. It will be possible to communicate with the base station,
It can be used outside the coverage area of a specific wireless base station. As a result, it is possible to avoid a problem in which the wireless mobile terminal device is abruptly disabled when the authorized user carries the wireless mobile terminal device. In addition, even if the wireless mobile terminal device is lost, unaware of it, or stolen, it is automatically protected when a predetermined set time set in the protection function operating time storage unit 21 has elapsed. The function is executed. Therefore, even when it is used illegally, it is possible to minimize the damage such as the communication cost and the data leakage that the legitimate user incurs.

(Embodiment 3) FIG. 5 is a diagram showing a configuration of a wireless mobile terminal device according to Embodiment 3 of the present invention.
Whether or not the user of a wireless mobile terminal is a legitimate user in a wireless mobile terminal device that communicates through one of a plurality of wireless base stations that each transmit a wireless base station identification code for identifying its own station The security function is provided for setting or changing the setting value of the system such as setting of a specific CS-ID used for authentication of the device or setting of the protection function operating period.

In FIG. 5, the wireless mobile terminal device 102 is shown.
Is composed of a wireless portable terminal unit 11 and a protection function executing unit 34. Further, the wireless portable terminal unit 11 has the wireless data processing unit 1, the received data processing unit 2, and the output unit 3 as in the first embodiment. , The transmission data processing unit 4 and the input unit 5, and the protection function execution unit 34 includes the authentication unit 19, the input / output switching unit 32, the password storage unit 31, and the password comparison unit similar to those of the second embodiment. Unit 30 and data storage unit 3
3, a start notification unit 40, and a protection function processing unit 9.

The above-mentioned configuration will be described in detail. The input / output switching unit 32 performs an operation of notifying the reception data received from the wireless data processing unit 1 to the reception data processing unit 2 or not. Similarly, the operation of notifying the transmission data from the transmission data processing unit 4 to the wireless data processing unit 1 or not is performed.

The password storage unit 31 notifies the password comparison unit 30 of a password for authenticating whether or not the user of the wireless portable terminal is an authorized user.

The password comparison unit 30 compares the input password input from the input unit 5 with the password sent from the password storage unit 31. Notify that "match".

The data storage unit 33 stores the system setting values of the wireless portable terminal and the contact information when the protection function is operated, and reads or writes the data at the request of the protection function processing unit 9.

The activation notification section 40 is used for the wireless mobile terminal device 10.
When "2" is activated by power-on or reset, "protection" is notified to the protection function processing section 9.

The protection function processing section 9 includes an input / output switching section 32,
The data storage unit 33 is controlled, whereby the protection function is set, the output unit 3 is notified of the presence or absence of the protection function operation, the operation of the wireless mobile terminal at startup is controlled, and the protection function is released. By doing so, the system setting value changing process, the process when the wireless mobile terminal device is activated, the process when the password is entered, and the process when the protection function is activated are realized.

The operation of the wireless mobile terminal device 102 having the above configuration will be described below with reference to the flow charts shown in FIGS. FIG. 6 is a flowchart showing the operation of the protection function for the above-mentioned system setting value change processing. First, in step S11, the protection function processing unit 9
Determines whether the protection function is set, that is, receives the comparison result from the radio base station identification code comparison unit 8 and determines whether the protection function is set.
If it is determined in step S12 that the protection function is set, it means that the user's legitimacy cannot be confirmed. Therefore, the system setting value of the data storage unit 33 cannot be changed, and thus step S12 Ends with (R
TN).

On the other hand, if it is determined in step S12 that the protection function has been released, it means that the user's legitimacy has been confirmed, so the system proceeds to step S13 and is stored in the data storage unit 33. Enables changing processing of set values. Then, the processing ends (RTN)
I do.

By the above processing, the system setting value of the wireless mobile terminal device can be protected, and the authorized user of the wireless mobile terminal device can change the system value without being aware of the presence or absence of the operation of the protection function. . The system setting value mentioned here can also be applied to the protection function operating time and the value of the specific CS-ID. Further, in the case of an unauthorized user, the system setting value cannot be changed. Therefore, the protection function is canceled by rewriting the protection function operating time, the value of the specific CS-ID, etc. It becomes impossible to use it.

FIG. 7 is a flow chart showing the processing for notifying the presence / absence of the protection function operation. First, in step S11, the protection function processing unit 9 determines whether or not the protection function is being set. If it is determined in step S11 that the protection function is set, the process proceeds to step S14, characters are displayed on the output unit 3 as shown in FIG. 8, and the user is protected by the wireless mobile terminal device 102. Notify that the function is set. Then, the processing is ended (RTN).

On the other hand, if it is determined in step S11 that the protection function has been canceled, step S15
9 is displayed on the output unit 3 as shown in FIG. 9 to notify the user that the wireless mobile terminal device 102 is in a state where the protection function is not working. And
After that, the process ends (RTN).

In the above example, the presence / absence of protection function setting / cancellation is displayed on the output unit 3, but any character may be used as long as the user can determine the distinction between them. Also, displays other than letters may be used. Further, the same configuration can be provided in the wireless mobile terminal device having the configuration shown in the first and second embodiments.

Through the above processing, the user can externally recognize the presence or absence of the operation of the protection function of the wireless mobile terminal device 102 without operating the wireless mobile terminal device 102.

FIG. 10 is a flowchart showing the operation of the protection function when the wireless mobile terminal device 102 is activated. First, when the activation notification unit 40 notifies that the terminal has been activated in step S11, the protection function processing unit 9 determines whether the protection function is set in the wireless mobile terminal device 102 at the time of activation. To do. Step S1
When it is determined in 1 that the protection function is set, the process proceeds to step S16 to execute the protection function.
Then, the process ends (RTN).

On the other hand, if it is determined in step S11 that the protection function is released, step S17
Then, the normal activation sequence of the wireless mobile terminal device 102 is executed. Then, the processing is ended (RTN).

Through the above processing, the wireless mobile terminal device 10
2 lost, did not notice it, or got stolen, and the wireless mobile terminal device 102 specified CS-
When the third party removes the power from the wireless mobile terminal device 102 or presses the reset switch while moving to the service area not stored in the ID storage unit 7 and the protection function is automatically executed. Even if the system activation process is performed, the protection function operates according to the above-described flow, and the wireless mobile terminal device 102 can be prevented from being illegally used.

This function can also be applied to the wireless mobile terminal device 101 having the configuration shown in the second embodiment.

FIG. 11 is a flow chart showing the operation of the protection function when a password is entered in the wireless mobile terminal device 102. First, in step S18, the password comparison unit 30 compares the input password input from the input unit 5 with the password stored in the password storage unit 31. If they are the same in step S18, that is, if the password is valid, the process proceeds to step S19, where the password comparison unit 30
Notify the protection function processing unit 9 to cancel the protection function,
The protection function processing unit 9 cancels the protection function for a certain period preset as a system value. Then, the process ends (RTN).

On the other hand, as a result of the comparison in step S18, if they are different from each other, that is, if the password is invalid, the process proceeds to step S20, and the password comparison unit 30 ends the processing as it is.

By the above processing, if the entered password is correct, that is, if the user is recognized as a valid user, the start of the protection function operation is postponed. As a result, due to loss or theft, the wireless portable terminal device is moved to a service area that is not stored in the specific CS-ID storage unit 7 and the protection function is automatically executed to make it unusable. It becomes possible to manually use again by entering the password of the person. Therefore, as in the second embodiment, after moving to the outside of the service area of the wireless base station not set in the wireless mobile terminal device and automatically delaying the protection function operation for a predetermined time, the wireless mobile terminal is protected. Even if the function is set, a legitimate user can cancel this, and for the legitimate user, the wireless mobile terminal device 1
02 You can remove the restriction of communication by the protection function, and on the other hand, for unauthorized users, you have to enter the password each time you use it because the protection function operates automatically after the lapse of a predetermined time. By causing the troublesomeness, it is possible to obtain the effect of suppressing the use by the unauthorized user.

The password to be stored in the password storage section 31 is not used frequently,
Since it is usually used by a legitimate user on a temporary basis,
If the number of digits that the user cannot remember is used, the protection function will be canceled even if the person who illegally acquires the wireless mobile terminal device tries to input the password many times through trial and error. There are few things like that.

FIG. 12 is a flowchart showing the processing when the protection function of the wireless mobile terminal device 102 is operating. That is, in each of the above-described embodiments, as the protection function, the main function is to limit the use itself of the wireless mobile terminal device, but here, some of the protection functions that perform other operations will be described. .

First, in step S21, the protection function processing section 9 determines whether the currently received radio base station identification code is stored in the specific CS-ID storage section 7 or not.
It is determined whether or not to transmit the currently received radio base station identification code. In this step S21, when it is determined that the wireless base station identification code should be transmitted, that is, when the wireless mobile terminal may be used illegally, the protection function processing unit 9 proceeds to step S22. , A call is automatically made to a preset notification destination, and a transmission process for transmitting the currently received radio base station identification code is performed. Next, in step S23, the protection function processing unit 9 determines whether or not the use of the wireless mobile terminal is restricted depending on whether or not the process of step S22 is performed. If it is determined in step S23 that the use of the wireless mobile terminal is restricted, step S
24, the input / output switching unit 32 is turned off, the data from the wireless data processing unit 1 is not notified to the reception data processing unit 2, and the transmission data of the transmission data processing unit 4 is transmitted to the wireless data processing unit 1. Do not notify. In addition, the data storage unit 33 is prevented from being accessed. Therefore, the wireless mobile terminal device 102 cannot communicate with the wireless base station or write or read data set in the wireless mobile terminal.

Further, the protection function processing section 9 determines whether or not the information stored in the data storage section 33 should be erased depending on whether or not the processing in step S24 is performed. When it is determined in step S25 that the memory is to be erased, the process proceeds to step S26 and the data in the data storage unit 33 is erased. Then, after that, the process proceeds to step S27 to end the process (RTN). The information stored in the data storage unit 33 is a telephone number,
This includes personal data such as schedules and data that you do not want to make public.

With the above processing, if the wireless mobile terminal device is lost, is unaware of it, or is stolen, it is possible that the terminal can be found using the wireless base station code transmitted. Higher, and therefore
There is a high possibility that the terminal will return to the rightful user.

If the terminal is not found,
It is possible to minimize the communication cost in the case of unauthorized use and damage such as leakage of personal data that should not be made public.

[0067]

As described above, according to the wireless portable terminal device according to the first aspect of the present invention, the wireless base station identification code for identifying itself is included in the data transmitted from the wireless base station. Since it is included, it is possible to perform authentication every time it is received, and thus it is possible to automatically perform authentication whether or not the owner of the wireless mobile terminal device is valid.

Further, according to the wireless mobile terminal device of the present invention, since the protection function automatically operates even when a legitimate user does not notice the loss of the wireless mobile terminal device, the wireless mobile terminal device can be used. This has the effect of reducing the risk of unauthorized use of a terminal device by a person who has acquired it.

According to the wireless mobile terminal device of the third aspect of the present invention, since the operation start of the protection function is delayed by the time designated by the user in advance, an arbitrary wireless communication can be performed for that time. It becomes possible to communicate with the base station, the area where the wireless mobile terminal device can be used by legitimate users is widened, and for the user who has acquired the wireless mobile terminal device unreasonably, after the set time, Even if the user tries to use the terminal, the protection function automatically operates, and there is an effect that security against illegal use can be automatically performed.

Further, according to the wireless portable terminal device according to the fourth aspect of the present invention, when the specific CS-ID is received, the protection function is automatically released, so the password is manually input. There is an effect that the wireless mobile terminal device can be used without the user performing the protection function releasing process.

According to the wireless portable terminal device of the present invention, the authentication check is always performed when the system setting value is changed, and the system setting is set when the user is an authorized user. The value can be changed without being aware of the protection function, but in the case of an unauthorized user, the protection function cannot operate and change the system contents. There is an effect that it is possible to prevent changing the value and canceling the protection function of the wireless mobile terminal device.

According to the wireless mobile terminal device of the sixth aspect of the present invention, whether or not the protection function is operating without the user performing any operation such as confirmation on the wireless mobile terminal device. Has the effect of being able to be recognized from the outside.

Further, according to the wireless portable terminal device of the present invention, the wireless portable terminal device is reset by turning on or off the power of the wireless portable terminal device when the protection function is operating. However, even if an unauthorized user tries to use the wireless mobile terminal, the wireless mobile terminal cannot be used, which is not a disadvantage to the legitimate user.

Further, according to the wireless mobile terminal device of the eighth aspect of the present invention, a password is used for user authentication,
If the password is legitimate, you can suspend the protection function for a certain period of time, so that it is
It becomes possible to manually enable the wireless mobile terminal device that is automatically disabled when the protection function operates when used outside the service area of the wireless base station that is not set in the wireless mobile terminal device, This has the effect of further reducing the possibility of causing a disadvantage to a legitimate user. Also, since authentication is performed automatically, the password used here may have a number of digits that the user cannot remember,
By using such a password, the protection function of the wireless mobile terminal can be enhanced. Furthermore, even if an unauthorized user picks up the password by some method, the protection function will be automatically set again after the holding time has elapsed, so it is necessary to enter the password each time, and it is troublesome. Therefore, there is a possibility that the use of the wireless mobile terminal device will be given up, which is effective in reducing the disadvantage to the legitimate user.

Further, according to the wireless portable terminal device of the present invention, the level of the protection function can be designated even when the wireless portable terminal device is lost, whereby the wireless portable terminal device is properly used. It is also possible to prevent the disadvantage to the user and to notify the legitimate user of the wireless base station code, so it is possible to search for the lost wireless mobile terminal device by relying on the wireless base station code. There is an effect that there is.

As described above, according to the wireless mobile terminal device of the present invention, when the wireless mobile terminal is lost, it is not necessary for the lost person to actively carry out the protection activity, and the wireless mobile terminal device is operated by inputting the password or the like. The wireless mobile terminal automatically authenticates whether or not the user is a legitimate user, even if he / she does not actively carry out activities such as limiting the use of the mobile terminal. The protection function is automatically activated against, and in the case of a legitimate user, it is possible to obtain a terminal that the user can use without being aware of whether the protection function of the wireless mobile terminal device is operating. Is obtained.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a wireless mobile terminal device according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a flowchart for explaining a protection function operation process of the wireless mobile terminal device according to the first embodiment.

FIG. 3 is a diagram showing a configuration of a wireless mobile terminal device according to a second embodiment of the present invention.

FIG. 4 is a diagram showing a flowchart for explaining a protection function operation process of the wireless mobile terminal device according to the second embodiment.

FIG. 5 is a diagram showing a configuration of a wireless mobile terminal device according to a third embodiment of the present invention.

FIG. 6 is a diagram showing a flowchart of a system setting value changing process of the wireless mobile terminal device according to the third embodiment.

FIG. 7 is a diagram showing a flowchart of a protection function notification process of the wireless mobile terminal device according to the third embodiment.

FIG. 8 is a diagram showing an example of a display state when the protection function of the wireless mobile terminal device according to the third embodiment is not operating.

FIG. 9 is a diagram showing an example of a display state when the protection function of the wireless mobile terminal device according to the third embodiment is operating.

FIG. 10 is a diagram showing a flowchart in the case of operating a protection function in the activation processing of the wireless mobile terminal device according to the third embodiment of the present invention.

FIG. 11 is a diagram showing a flowchart for canceling a protection function by password input processing of the wireless mobile terminal device according to the third embodiment.

FIG. 12 is a diagram showing a flowchart for explaining another example of the protection function processing of the wireless mobile terminal device according to the third embodiment.

[Explanation of symbols]

 1 wireless data processing unit 2 received data processing unit 3 output unit 4 transmission data processing unit 5 input unit 6 wireless base station identification code extraction unit 7 specific CS-ID storage unit 8 wireless base station identification code comparison unit 9 protection function processing unit 10 Authentication unit 11 Wireless mobile terminal unit 19 Authentication unit 20 Elapsed reception time measurement unit 21 Protection function operating time storage unit 22 Protection function operating time comparison unit 34 Protection function execution unit 32 Input / output switching unit 30 Password comparison unit 31 Password storage unit 33 Data Memory

Claims (9)

[Claims] 1. A wireless mobile terminal device that communicates through one of a plurality of wireless base stations that each transmit a wireless base station identification code for identifying itself, and receives the wireless base station identification code. The extracted wireless base station identification code and a preset wireless base station identification code transmitted by a specific wireless base station (hereinafter referred to as a specific CS-
(Hereinafter referred to as ID), and a wireless mobile terminal device comprising an authentication means for authenticating a user of the wireless mobile terminal device based on the comparison result. 2. The wireless mobile terminal device according to claim 1, wherein the received wireless base station identification code and the previously stored specific CS-ID are compared, and if the two are different, the wireless mobile terminal device. A wireless mobile terminal device, wherein a protection function is automatically set for the terminal device. 3. The wireless mobile terminal device according to claim 2, wherein a time elapsed from when the specific CS-ID cannot be received until the next specific CS-ID is received (hereinafter referred to as a reception elapsed time). And a protection function operation delay time storage for storing a time elapsed from the time when the specific CS-ID cannot be received until the protection function operates (hereinafter referred to as a protection function operation delay time). Means and a comparing means for comparing the reception elapsed time with the protection function operation delay time, wherein the received radio base station identification code and the preset specific CS-ID are different from each other, and by the comparing means. If the comparison result determines that the protection function operation delay time is longer, the setting of the protection function is delayed and communication with any radio base station becomes possible, while Serial comparison means comparison result by the, if it is determined that the direction of the reception elapsed time is greater, the wireless mobile terminal device, characterized in that the protective function is set. 4. The wireless mobile terminal device according to claim 1, wherein the extracted specific CS-ID and preset specific CS
-A wireless mobile terminal device characterized in that the protection function that has been set is automatically canceled when the IDs are compared and both are judged to be equal. 5. The wireless portable terminal device according to any one of claims 2 to 4, when the protective function is set, to change the system settings of the wireless portable terminal with Not possible A wireless mobile terminal device. 6. The wireless mobile terminal device according to claim 2, further comprising a protection function notifying means for notifying a user of whether or not the protection function is set. apparatus. 7. The wireless mobile terminal device according to claim 2, further comprising an activation detection unit that detects that the wireless mobile terminal device has been activated, and the protection function is set. The wireless mobile terminal device is characterized in that the protection function is not released even when the activation detection means detects activation of the wireless mobile terminal device. 8. The wireless mobile terminal device according to claim 3, further comprising: a password storage means for storing a preset password, a password input means for inputting the password from the outside, and a means for analyzing the input password. A protection function holding time storing means for storing a time for holding the setting of the protection function (hereinafter, referred to as a holding time), and by inputting the preset password, the stored protection holding time is stored. The setting of the protection function set after the reception time above is held until
A wireless mobile terminal device, wherein the hold is automatically released after the hold time has elapsed. 9. The wireless mobile terminal device according to claim 2, wherein the received wireless base station identification code is compared with the specific CS-ID stored in advance, and when the two are different,
The wireless base station identification code currently received by the wireless mobile terminal device is notified to a contact set in advance by the user, the function of the wireless mobile terminal device is restricted, or the wireless mobile terminal device stores the code. The wireless mobile terminal device is characterized by performing one of erasing specific information that is present.