JP2002159067A - Portable terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable terminal which is constituted to enable the user to prevent the overuse of the terminal for speech or communication, to cancel regulation as necessary by his own judgment, and to reduce the amount of the loss caused by the unauthorized use of the terminal to the minimum so as to solve the problem raised by the conventional portable terminal that the user is not able to adapt itself to circumstances when the user makes speed in excess of a limit amount. SOLUTION: This portable terminal is constituted to set a limit call tariff at every speech or at every fixed period of time and a pass word which cancels the regulation on the limit call tariff and to give a warning to the user when the limit amount is reached during speech. The terminal allows the continuation of speech when the set pass word is inputted and forcibly cuts off the speech when the pass word is not inputted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable terminal for calculating a telephone charge for each telephone call, and more particularly, to preventing overuse of telephone calls and communications based on the owner's judgment, and as required by the owner's judgment. Mobile terminal that can remove restrictions and minimize the damage of unauthorized use.

[0002]

2. Description of the Related Art Conventionally, as a method for preventing overuse of telephones and communications, a call charge guidance service in which a communication carrier informs a call charge in response to an inquiry from a user, or a call charge is notified after a call ends. There was a call charge notification service. In addition, as a method of strictly restricting excessive use of call charges, a communication carrier sets a maximum monthly call charge for each owner (contractor) according to a request from the owner (contractor), There was also a service that regulated outgoing calls when the monthly call charge exceeded the upper limit.

As a conventional technique for preventing overuse of telephones and communications, Japanese Patent Laid-Open Publication No. Hei 9-116651, published on May 2, 1997, entitled "Call management system for key telephone apparatus".
(Applicant: Shizuoka NEC Corporation, Inventor: Yasuhiro Ito)
There is. This prior art is a button telephone device comprising a control unit for regulating a call time and a call charge for each call, and specifically, calculates a call charge during a call, and sets the call charge in advance. When the call charge warning value is reached, a warning is issued.If the call extension is possible, the access code can be continued if an access code is entered. If no access code is entered, the call is cut off when the call charge regulation value is reached. Is described.

Another conventional technique is disclosed in
There is Japanese Patent Application Laid-Open No. 9-331409 "Mobile Phone" (applicant: Saitama NEC Corporation, inventor: Hidehiko Kameyama) published on February 22. This prior art describes that a call charge is calculated for each call, and a notification sound is emitted when the call charge reaches a preset call charge.

[0005]

However, in the above-mentioned conventional portable terminal, the call charge notification service in which the call charge is displayed after the end of the call shows that the call charge is high after a long telephone call. And there is no way to know it during a call. In addition, the telecommunications carrier sets a monthly usage limit, and when the usage limit is reached, the service that regulates outgoing calls must provide the carrier with cancellation of restrictions if you want to call even if you exceed the usage limit Therefore, there is a problem that not only is it not possible to respond flexibly, but it is also inconvenient to use, for example, a fee is required for deregulation.

In the technique disclosed in Japanese Patent Application Laid-Open No. Hei 9-331409, a notification sound is only emitted when a preset call charge is reached, so that the user can be notified of the charge excess.
For example, there is a problem that it is not useful for preventing unauthorized use by others. In addition, in the case of a method in which a warning is issued when the call charge warning value is reached, and the call is disconnected when the call charge regulation value is reached, even if the caller exceeds the usage limit and wants to make a call, the call will be disconnected when the limit is reached. There was a problem that it was inconvenient to use.

In the technique disclosed in Japanese Patent Application Laid-Open No. 9-116651, a warning is issued when a preset call charge warning value for each call is reached, and if an access code is input, continuation is possible. Will be disconnected when the call charge regulation value is reached, but if the access code is common to all users, it can be extended simply by inserting that code, which is effective in preventing unauthorized use such as when the mobile terminal is lost. There was no problem. In addition, since the restriction is made on a call-by-call basis, there is a problem in that the restriction is not made if the time of one call is short, and there is no effect in preventing unauthorized use when the mobile terminal is lost.

[0008] The present invention has been made in view of the above circumstances, and a limit on the use of call charges for each call and for a certain period,
A password can be set to release restrictions, a warning is issued based on the usage limit, and if the set password is entered, the restrictions are released to prevent excessive use of telephone calls and communications, and possession. It is an object of the present invention to provide a portable terminal capable of releasing restrictions as required by a user and further minimizing damage from unauthorized use.

[0009]

SUMMARY OF THE INVENTION The present invention for solving the above-mentioned problems of the prior art is a portable terminal for calculating a call charge for each call, comprising: a call charge limit for each call; A password can be set in advance to enable calls even if the amount exceeds the amount, a warning is issued during or before the set call charge limit is reached during the call, and the set password is If the password is entered, the call can be continued, and if the set password is not entered, the call is terminated. Therefore, for each call, excessive use of the call or communication is prevented, and the owner's judgment is made. As a result, regulations can be released as necessary, and the damage caused by unauthorized use can be minimized.

Further, the present invention for solving the above-mentioned conventional example is a portable terminal which calculates a call charge for each fixed period. A password for enabling a call can be set in advance, and a warning is issued before or during the call or when the set call charge limit is reached or during the call, and the set password is used. When entered, the call can be started or continued, and if the set password is not entered, the call cannot be started or disconnected. In addition, restrictions can be released as necessary at the discretion of the owner, and damage from unauthorized use can be minimized.

[0011]

Embodiments of the present invention will be described with reference to the drawings. Note that the function realizing means described below may be any circuit or device as long as the function can be realized, and some or all of the functions may be realized by software. is there. Further, the function realizing means may be realized by a plurality of circuits, or the plurality of function realizing means may be realized by a single circuit.

A portable terminal according to the present invention is a portable terminal which calculates a call charge for each call and / or for a fixed period, or for both. A password can be set in advance to enable calls even when the limit is exceeded, and a warning is issued before or during the call, when the set call charge limit is reached or before the call is reached. If the set password is input, the call can be started or continued.If the set password is not input, the call cannot be started or disconnected. It is possible to prevent excessive use of communication, release restrictions as needed at the discretion of the owner, and further minimize damage caused by unauthorized use.

First, the configuration of a portable terminal according to an embodiment of the present invention will be described with reference to FIG. FIG. 1 is a configuration block diagram of a mobile terminal according to an embodiment of the present invention. In the following description, an example in which the certain period is one month will be described, but the present invention is not limited to this. As shown in FIG. 1, the mobile terminal of this embodiment has an antenna 1
, A transmission / reception switching unit 2, a reception unit 3, a demodulation unit 4, a modulation unit 5, a transmission unit 6, a codec 7, and an audio processing unit 8.
, Receiver 9, microphone 10, operation unit 11, display unit 12, memory 13, call charge calculation unit 14, limit / password setting unit 21, call control unit 22, and abnormal end flag check unit 23. And a control unit 20 having the following.

Hereinafter, each part will be described in detail, but since the antenna 1 to the microphone 10 are parts for realizing a call function in a general portable terminal, they will be described only briefly. The antenna 1 is a general antenna for transmitting and receiving a radio signal. The transmission / reception switching unit 2 outputs a signal arriving at the antenna 1 to the reception unit 3 and transmits and outputs a signal input from the transmission unit 6 via the antenna 1. The receiving unit 3 receives a signal input from the transmission / reception switching unit 2 and outputs the signal to the demodulation unit 4. Demodulation unit 4
Is for demodulating a signal input from the receiving unit 2 and outputting it to the codec 7.

The codec 7 decodes the signal input from the demodulation unit 4 and outputs the decoded signal to the control unit 20 if it is a control signal such as a call signal. This is output to the audio processing unit 8. The codec 7 encodes an audio signal input from the audio processing unit 8 and outputs the encoded signal to the modulation unit 5. Further, the codec 7 receives a control signal such as a call signal from the control unit 20. This is coded and output to the modulation unit 5.

The audio processing section 8 sounds and outputs an audio signal from the codec 7 through the receiver 9 and outputs an audio signal input from the microphone 10 to the codec 7.
Is output to The modulator 5 modulates a signal input from the codec 7 and outputs the modulated signal to the transmitter 6. The transmission section 6 outputs the modulated signal input from the modulation section 5 to the transmission / reception switching section 2.

Next, each section related to the characteristic portion of the present invention will be described. The operation unit 11 is a group of keys, which is an operation unit of a general portable terminal, and outputs the content of the performed operation to the control unit 20. In particular, in the present case, the operation unit 11 is used for, for example, input when setting a usage limit and a password, and inputting a password when a warning is issued. The display unit 12 is a display unit of a general mobile terminal, and in this case, in particular, displays a display at the time of inputting the setting of a usage limit and a password, a warning display when the usage limit is reached, and the like. is there.

The call charge calculation unit 14 calculates a call charge for each call in accordance with an instruction from the control unit 20, and calculates a call charge for each call.
Is output to As a specific method of calculating the charge, a method of receiving a charge rate according to the contract content from a base station or the like in advance and calculating the charge from the count of the talk time according to the rate can be considered, but in the present case, the charge is calculated. The calculation method is not limited.

The memory 13 is a non-volatile memory for storing user setting data and the like, and in this case, in addition to telephone directory data and the like in a general portable terminal, various data for performing call control based on a call charge are stored in the present case. I remember. Here, the data unique to the present invention stored in the memory 13 will be described with reference to FIG. FIG. 2 is an explanatory diagram showing data contents specific to the present invention in the memory 13 of the portable terminal according to the embodiment of the present invention. As shown in FIG. 2, in the memory 13 of the mobile terminal according to the embodiment of the present invention, a usage limit 13a for each call, a usage limit 13b for each month,
Passwords 13c and 1 that unlock the usage limit for each call
A password 13d for canceling the monthly usage limit, a cumulative call charge 13e, and an abnormal termination flag 13f are stored.

Here, the use limit 13a for each call, the use limit 13b for each month, the password 13c for canceling the use limit for each call, and the password 13d for canceling the use limit for each month are owned. It is set and stored by an input from the operation unit 11 by a user, and can be changed. The accumulated call charge 13e is calculated by the call charge calculation unit 1
The control unit 20 stores data in the process of accumulating the charges for each call calculated by the control unit 4 over a fixed period (for example, one month).

The abnormal end flag 13f is set in the control unit 2
In the process of call control by 0, whether or not abnormal termination has occurred,
A value (flag) indicating the status when abnormal termination has occurred
Is stored. Specifically, the abnormal end flag is set to 0
Indicates "normal termination", 1 indicates "disconnected state without password input when exceeding the usage limit for each call", and 2 indicates "password input when exceeding the monthly usage limit." 3 indicates a state in which the usage limit is exceeded for a one-month use limit but a password has been entered and the call is permitted.

Here, the concept of the check using the abnormal end flag will be described. For example, if the abnormal termination flag ends with 1 in the previous call, as a possible case, (a) when the original owner is calling, the usage limit is set for each call, For example, if you do not want to talk anymore, you do not enter a password, and the call is disconnected (abnormal termination). (B) Lost and misused. There are two cases where the call is not input and the call is disconnected (abnormal termination). Therefore, in order to minimize the damage caused by unauthorized use, the user is required to input a password before starting the call, and if the correct password is input, it is not lost, so the start of the call is OK. If the correct password is not entered, the call cannot be made from the beginning.

If the abnormal end flag ends with 2, the possible cases are as follows: (a) When the original owner is talking, the usage limit is one month, Judging that the call should not be made, the user did not enter the password and the call was disconnected (abnormal termination). (B) Lost and misused, the usage limit reached for one month during the call. There are two cases where the call is not input and the call is disconnected (abnormal termination). Either way, you have reached the monthly usage limit, so you need to enter your password before calling, and if the correct password is entered, it is not lost, and at the discretion of the owner, Even if it exceeds the monthly limit, the start of this call is OK, the abnormal end flag is set to 3, and if the correct password is not entered, it will not be possible to make a call from the beginning due to unauthorized use or the owner's judgment. It will be.

The case where the abnormal end flag ends with 3 is the case where the original owner enters a correct password during the telephone conversation when the usage limit of one month is reached, and in any case, the one-month Has been reached, the user is required to enter a password before the call starts, and if the correct password is entered, the start of the call is disabled.
The flag is set to 3 as K. Also, in this case, it is necessary to check the usage limit for one call, so if the usage limit for one call is reached during a call, request a password entry, and if the correct password is entered,
The call can be continued.

The control unit 20 is a control unit for controlling the entire mobile phone. In addition to a means for controlling a general mobile phone, a means for performing a call control based on a usage limit which is a characteristic part of the present invention. Limit / password setting means 21 for setting various limits and a password for canceling them.
And an abnormal end flag check unit 22 for performing control according to the previous call end state before the start of the call, and a call control unit 23 for controlling the call by checking the call charge during the call process after the start of the call.

Each means will be described in detail. Credit limit·
The password setting means 21 stores a use limit for each call, a password for canceling the limit for each call, a use limit for a fixed period, and a password for canceling the limit for each call. This is a means for setting a limit amount and a password to be set, and is started at any time by selecting a setting function from the operation unit 11.

Here, the limit / password setting means 21
A specific processing example of the limit amount and password setting process will be described with reference to FIG. FIG. 3 is a flowchart showing the flow of the limit amount and password setting process of the limit amount / password setting means 21 in the portable terminal according to the embodiment of the present invention. In the portable terminal of the present invention, when the limit amount and the password setting function are selected from the operation unit 11,
The limit / password setting means 21 in the control unit 20 is activated, and a message requesting the input of the usage limit for each call is displayed on the display unit 12 (100). A key input process for inputting and displaying is performed (102). Further, a message is displayed on the display unit 12 requesting the input of a password for canceling the usage limit for each call (104), and a key for inputting and displaying a password for canceling the usage limit for each call from the operation unit 11 is displayed. An input process is performed (106). Further, a message requesting the user to input a monthly usage limit is displayed on the display unit 12 (10
8) A key input process for inputting and displaying a monthly usage limit from the operation unit 11 is performed (110). Further, a message requesting input of a password for releasing the monthly usage limit is displayed on the display unit 12 (112), and a password for releasing the monthly usage limit is input from the operation unit 11 and displayed. Key input processing is performed (114).

Then, the input limit for each call and each month and the password for canceling the limit for each call and each month are confirmed (116). Each usage limit and each password
Stored in the memory 13 are a use limit 13a for each call, a use limit 13b for each month, a password 13C for canceling the use limit for each call, and a password 13d for canceling the use limit for each month. (118) The limit amount and password setting process ends. Also, if the input usage limit and each password are canceled in the process 116, the process returns to the process 100 and the input of each item is repeated again.

When a call start request is made, the abnormal end flag check means 22 checks an abnormal end flag indicating the status of the previous call, and performs an abnormal end flag check process for controlling the start of the call. Means. Only when the result of the abnormal end flag check processing indicates that the call start is OK, the call start request is permitted and normal call control is performed.

Here, abnormal end flag check means 22
A specific example of the abnormal end flag check processing will be described with reference to FIG. FIG. 4 is a flowchart showing a flow of the abnormal end flag check processing of the abnormal end flag check means 22 in the portable terminal according to the embodiment of the present invention. Here, as described above, the abnormal end flag is set to 0: normal end, 1: disconnection without inputting a password when the usage limit for each call is exceeded,
2: When the usage limit for one month is exceeded, the password is not input and the user is disconnected. 3: When the usage limit for the one month is exceeded, the password is input and the use of this call is permitted. Is shown.

In the portable terminal of the present invention, when a call request instruction is input from the operation unit 11, the abnormal end flag check means 22 in the control unit 20 is activated, and the memory 1
It is determined what the value of the abnormal end flag 13f of No. 3 is (300). If the abnormal end flag is 0, it has been normally ended the previous time, and the abnormal end flag check process is terminated as it is with the call start OK.

In the process 300, if the abnormal termination flag is 1, it means that the password limit was set for each previous call and a correct password was not entered.
A message is displayed requesting the input of a password to release the usage limit for each call (302), and a KEY input process for inputting a password is performed (304), and the input password releases the usage limit for the memory 13 for each call. It is determined whether the password 13c matches with the password 13c (306). If the password 13c matches (Yes), the abnormal termination flag is set to 0 (310) as OK is issued for this call, and the call is started OK.
Ends the abnormal end flag check processing. If the passwords do not match (N
o), a warning message is displayed (308), and the abnormal end flag check processing ends with a call start NG.

In the process 300, if the abnormal termination flag is 2 or 3, it means that the usage limit for one month has been reached in the previous call, so the usage limit for each month is released. A message for requesting a password input is displayed (312), a key input process for inputting a password is performed (314), and whether or not the input password matches a password 13d for canceling the monthly usage limit of the memory 13 is determined. It is determined (316), and if they match (Ye
s) Assuming that OK has been issued for this call, the abnormal end flag is set to 3 (320), and the abnormal end flag check processing ends when the call is started OK. If the passwords do not match in the process 316 (No), a warning message is displayed (318), and the abnormal end flag check process ends with a call start NG. It should be noted that, only when the call start is OK in the abnormal end flag check processing, the passage start request is permitted and a normal call can be made. In the case of the call start NG, the passage start request is not permitted and the call is made. Will not be.

Next, as a result of the abnormal end flag check processing of the abnormal end flag check means 22, the call control means 23 is activated when a call is initiated and the call is started by off-hook on the receiving side. Means for performing a call control process for checking a call charge during a call and controlling the call according to a set usage limit.

Here, a specific example of the call control processing of the call control means 23 will be described with reference to FIG. FIG. 5 is a flowchart showing the flow of a call control process of call control means 23 in the mobile terminal according to the embodiment of the present invention. In the portable terminal of the present invention, when a call is started, the call control means 22 is activated, and the call charge calculation unit 1 is started.
4 is instructed to start the usage charge calculation process (20)
8). Then, it is confirmed whether the abnormal end flag is 3 (210), and if the abnormal end flag is 3 (Ye).
If s), the process jumps to step 240. This means that, as a result of the processing of the abnormal end flag check means, the abnormal end flag is 3, which means that the usage limit for one month has already been reached, and that the correct password has been entered before the start of the call.
Since this indicates that the call has been accepted, it is unnecessary to check the usage limit for one month, and it is only necessary to check the usage limit for each call.

If the abnormal end flag is not 3 (No) in the process 210, firstly, the usage fee for the call is acquired from the call charge calculation unit 14 and added to the accumulated call charge in the memory 13 in units of one month. The cumulative usage charge for
It is checked whether or not the monthly limit of the memory 13 is exceeded (212).
es), a warning sound is output (220), a message requesting a password input for releasing the monthly usage limit is displayed (222), and a KEY input process for inputting a password is performed (224). Password is memory 13
It is determined whether or not the password matches the password 13d for canceling the monthly usage limit (226).
s) Continue the call (232), OK for this call
Is set and the abnormal end flag is set to 3 (234).
Then, the monthly check is completed, and the process proceeds to the check of the call unit (process 240). On the other hand, if the passwords do not match in the process 226 (No), a warning message is displayed (228), the abnormal end flag is set to 2 (230), the call is disconnected (231), and the call control process is performed. To end.

In step 212, if the accumulated usage fee does not exceed the monthly usage limit in the memory 13 (No), and in steps 220 to 234, the monthly usage limit is released. If the correct password is entered and the call continues, it is determined as a check process for each call whether the usage amount for each call exceeds the usage limit 13a for each call in the memory 13 (240).
If it does not exceed (No), the process returns to the process 210, and the check is repeated until any of the usage limit is reached. If it exceeds (Yes), a warning sound is output (242) and each call is made. A message requesting the input of a password for canceling the usage limit is displayed (244), a key input process for inputting the password is performed (246), and the entered password is used to cancel the usage limit for each call in the memory 13. 13c is determined (248), and if they match (Yes), the call is continued (254), and the abnormal termination flag is set to 0 as OK is issued for this call (256), and the call control process is performed. To end. If the passwords do not match in process 248 (No), a warning message is displayed (25).
0), the abnormal end flag is set to 1 (252), the call is disconnected (253), and the call control process ends.

Here, the fact that the abnormal termination flag is other than 3 means that both the check of whether the usage amount for each month is over and the check of whether the usage amount for each call is over are both performed. Must check. Therefore, a check is performed on a monthly basis in steps 212 to 230, and a call is checked in steps 240 to 256.

In the portable terminal according to the embodiment of the present invention, when the usage limit is exceeded (when the usage limit is reached), a warning is issued before the usage limit is exceeded (for example, 10% before). No problem. In addition, in the flowchart of FIG. 5, after the monthly limit is exceeded and the correct password is input, the limit is checked for each call. If the password is entered, the check for each call may not be performed.

Next, the operation of the portable terminal according to the embodiment of the present invention will be described with reference to FIG. In the portable terminal according to the embodiment of the present invention, the limit / password setting unit 2 of the control unit 20 is selected by the function selection from the operation unit 11.
1 is activated, and the usage limit amount for each call is
A password for releasing this limit for each call, a usage limit for each fixed period, and a password for releasing this limit for each call are input and stored in each area of the memory 13.

Then, a call is started (originated) from the operation unit 11.
Is input, first, the abnormal end flag check unit 22 checks the abnormal end flag 13f of the memory 13, and the call is disconnected without inputting the password in the previous call. In such a case, a password is required to be input before the call starts, and the call can be started only when a correct password is input. At the same time, if the usage limit has been reached for a certain period (for example, a month), the owner (user) is asked to confirm whether or not the requested call can be made. Prompt for password and allow outgoing call to start if correct password is entered.

Then, the abnormal end flag check means 22
As a result, when the start of the call is OK, the call processing is performed, and when the call is started, the operation of the call charge checking means 22 reaches the usage limit for a certain period (for example, month). If so, a password input is requested, and if the stored correct password is input, the call is continued. If the correct password is not input, the call is forcibly disconnected. In addition, if the usage limit for each call is reached, a password input is required, and if the stored correct password is input, the call is continued, and if the correct password is not input, the call is forcibly disconnected. .

According to the portable terminal of the embodiment of the present invention,
By the operation of the limit password setting means 21, the use limit for each call and the password for releasing the regulation when the limit is reached are set by a simple operation by the user,
By the operation of the call charge checking means 23, a warning is issued when the limit is reached during a call, and if the set password is entered, the call is continued, so that the regulation value according to the user's consciousness can be easily set. The user can be notified of excessive use by a warning, and can continue with the intention of the user (owner). Therefore, it is possible to prevent excessive use of communication and telephone calls, and to release restrictions as necessary at the owner's discretion. This has the effect of improving usability.

According to the portable terminal of the embodiment of the present invention, the operation of the limit password setting means 21
The usage limit amount for each fixed period (for example, one month) and a password for releasing the regulation when the limit amount is reached are set by a simple operation by the user, and the call charge checking means 23 is set.
Will warn you if the limit is reached during a call, and if you enter the set password, the call will continue.
Regulation values according to the user's consciousness can be set easily, warnings can be given to the user of overuse, and the user (owner) can continue on his / her own will. In addition, the restriction can be released as necessary at the discretion of the owner, which has the effect of improving usability.

That is, a similar invention is disclosed in Japanese Patent Application Laid-Open No. Hei 9-1166.
In No. 51 “Call Management Method for Button Telephone Device”, control was performed on the limit value for each call, so if the time of one call was short, any amount of unauthorized use was possible, but the use of unauthorized use was not prevented. According to the present invention, there is an effect that regulation can be performed even on a monthly basis.

In addition, since the user can set a password for releasing the regulation when the limit is reached, the user can be prevented from using a certain amount or more even when unauthorized use is performed by another person. Has the effect of minimizing the

According to the portable terminal of the embodiment of the present invention, when the usage limit is reached, the password is not entered and the call is disconnected, the abnormal termination flag is set, and the next call is made. At the time of a start request, the abnormal end flag check means 22 operates to request a password input before the call starts, and the call cannot be started unless a preset correct password is input. Has the effect of minimizing the

When the limit is reached for a certain period, a password is always required at the time of a call start request, so that the owner is notified before the start of the call that the limit has been reached and a judgment is made. The effect of preventing overuse can be improved.

[0049]

According to the present invention, it is possible to previously set a call charge limit for each call and a password for enabling a call even when the call charge limit is exceeded. When or before the call limit is reached,
A warning is issued, the call can be continued if the set password is entered, and if the set password is not entered, the mobile terminal will be disconnected. In addition, the regulation can be canceled as required by the owner, and the damage from unauthorized use can be minimized.

According to the present invention, it is possible to set in advance a call charge limit for each fixed period and a password for enabling a call even if the call charge limit is exceeded. When the set call limit is reached or before the warning is issued, a warning is issued, and if the set password is entered, the call can be started or continued, and if the set password is not entered, As the mobile terminal cannot start or terminate calls, it prevents overuse of calls and communications for a certain period of time, and allows the owner to remove restrictions as necessary at the discretion of the owner. There is an effect that can be limited to.

[Brief description of the drawings]

FIG. 1 is a configuration block diagram of a mobile terminal according to an embodiment of the present invention.

FIG. 2 is a memory 1 of the portable terminal according to the embodiment of the present invention.
3 is a diagram showing the contents of FIG.

FIG. 3 is a flowchart illustrating memory settings in the portable terminal according to the embodiment of the present invention.

FIG. 4 is a flowchart showing an abnormal end flag check process in the portable terminal according to the embodiment of the present invention.

FIG. 5 is a flowchart illustrating a call control process in the mobile terminal according to the embodiment of the present invention.

[Explanation of symbols]

1 antenna, 2 transmission / reception switching unit, 3 reception unit,
4 demodulator, 5 modulator, 6 transmitter, 7 codec, 8 audio processor, 9 receiver, 10
Microphone, 11 operation unit, 12 display unit, 13 memory, 14 call charge calculation unit, 20 control unit, 2
1 ... limit / password setting means 22 ... abnormal end flag checking means 23 ... call charge checking means

Claims (2)

[Claims] 1. A portable terminal for calculating a call charge for each call, wherein a call charge limit for each call and a password for enabling a call even when the call charge limit is exceeded can be set in advance. During a call, when or before the set call charge limit is reached, a warning is issued, and when the set password is entered, the call can be continued, and the set password is A mobile terminal that disconnects a call when no input is made. 2. A mobile terminal for calculating a call charge for each fixed period, comprising: a call charge limit for each fixed period; and a password for enabling a call even if the call charge limit is exceeded. Configurable and before or during a call,
When the set call charge limit is reached or before the call is reached, a warning is issued, and when the set password is input, the call can be started or continued, and the set password is not input. , A mobile terminal that cannot start or disconnect a call.