JP4375353B2 - Mobile communication terminal, mail transmission / reception function control method, program, and recording medium - Google Patents

Description

  The present invention relates to a mobile communication terminal, a mail transmission / reception function control method thereof, a program, and a recording medium. The present invention relates to a portable communication terminal that can control the restriction of e-mail functions in stages.

  In recent years, mobile communication terminals such as mobile phones and PHS (Personal Handy-phone System) have been widely used, and they are rapidly spreading as a convenient communication means not only for business use but also in daily life. The situation of one unit per person is also expected. Such mobile communication terminals have various application functions such as an e-mail function, a camera function, and a schedule function according to a wide range of user requests.

  One of various application functions is a phone book function. In the phone book function, for example, personal information such as a phone number, e-mail address, name, and image data is stored in a memory. When a name is entered as a keyword and a call instruction is issued, the corresponding name and the phone number of the other party are displayed. Can be called and displayed.

  On the other hand, the mobile communication terminal is relatively easy to operate and browse not only by the owner but also by a third party because of its portability, there is a high possibility that personal information will be leaked, and security is required to be strengthened.

  On the other hand, conventionally, a personal information protection function (PIM (Personal Information Manager) lock) that suppresses only a function that operates by referring to recorded personal information is implemented in the mobile communication terminal and recorded in the mobile communication terminal. The security of personal information is improved. The PIM lock is a function for preventing a third party from seeing the outgoing / incoming call history, the transmission / reception address list, and the like.

Also, for example, Patent Document 1 discloses a mobile communication terminal that can set a secret level according to a user's usage status, enhance personal information protection, and improve convenience and operability.
JP-A-2005-198170

  When PIM Lock is implemented, it is possible to operate outgoing calls and incoming calls related to voice calls without using the phone book data recorded in the mobile communication terminal. There is a problem that the overall transmission / reception function is limited.

  The mobile communication terminal disclosed in Patent Document 1 is intended to protect personal information by setting a secret level for outgoing and incoming calls, and to improve the security and convenience of personal information when sending and receiving mail. is not.

  Accordingly, the present invention prevents leakage of personal information due to third-party operations and browsing, and restricts the mail transmission / reception function in stages, thereby improving operability even in the PIM lock execution state, and convenience. An object is to provide a portable communication terminal having high performance.

In order to achieve such an object, the present invention is a mobile communication terminal comprising a mail transmission / reception function and a personal information protection function that suppresses only a function that operates by referring to personal information recorded in the mobile communication terminal. In the function restriction state of the mail transmission / reception function, a lock mode that completely restricts the transmission and reception of mail, a partial permissible lock mode that partially restricts the transmission and reception of mail, and does not restrict the transmission and reception of mail. Stored in the portable communication terminal is control data storage means for storing information related to a function restriction state including three modes of the normal mode and storing personal authentication information necessary for realizing the personal information protection function. the in and data reference or update has a main control unit for instructing various kinds of processing to the processing means of the mobile communication in the terminal, the main Emission control means, based on the information about the function restriction state stored by said control data storing means, and performs control of the mail transmitting and receiving function.

  In the present invention, the function restriction state stored by the control data storage means is, for example, a three-stage state, that is, a lock mode that completely restricts the mail transmission / reception function, a partial permissible lock mode that partially restricts the function, And a normal mode that does not restrict the function. The main control means limits the mail transmission / reception function according to the three-stage function restriction state. For example, when the function restriction state is the lock mode, the main control unit performs control to disable activation of the outgoing mail creation function and disable notification of incoming mail. In addition, when the function restriction state is the partial permissible lock mode, the main control means allows the activation of the outgoing mail creation function, but cannot operate the telephone book data reference, but operates the received mail notification, but not the received mail list reference. Control is performed.

  In this way, according to the function restriction state that has been set, it is possible to control the services that can be provided at a step-by-step level for the mail transmission / reception function, and the prevention of leakage of personal information due to third-party operations and browsing, A highly convenient mobile communication terminal that achieves both improved operability in the implementation state of the personal information protection function is realized.

In addition, the present invention comprises a mail transmission / reception function and a personal information protection function that suppresses only a function that operates by referring to the personal information recorded in the mobile communication terminal, and in a function restriction state for the mail transmission / reception function , Function restriction states including a lock mode that completely restricts transmission and reception of mail, a partial permissible lock mode that partially restricts transmission and reception of mail, and a normal mode that does not restrict transmission and reception of mail A method for controlling a mail transmission / reception function of a mobile communication terminal having control data storage means for storing personal information necessary for realizing the personal information protection function and storing information related to the personal information protection function, which is stored in the mobile communication terminal A main control step of referring to or updating the data being processed and instructing various processing to the processing means in the mobile communication terminal, The main control step, based on the information about the function restriction state stored by said control data storing means, even mail transmitting and receiving function control method for a mobile communication terminal and performs control of the mail transmitting and receiving function Good.

  Further, the present invention may be a program for causing a mobile communication terminal to execute the above-described mail transmission / reception function control method of the mobile communication terminal.

  Further, the present invention may be a recording medium on which the above program is recorded.

  According to the present invention, the leakage of personal information due to third-party operations and browsing is prevented, and the mail transmission / reception function is restricted in stages, so that the operability is improved even in the PIM lock execution state. A highly portable communication terminal or the like is realized.

  Embodiments of the present invention will be described with reference to the drawings.

<Embodiment 1>
First, the configuration of the mobile phone according to the first embodiment of the present invention will be described.

  FIG. 1 is a block diagram illustrating a functional configuration of the mobile phone according to the present embodiment. The mobile phone 100 includes a main processing unit 101, a wireless communication processing unit 102, a key operation input processing unit 103, a screen display processing unit 104, a phone book data recording unit 105, a control data recording unit 106, and a received mail recording unit 107. Composed.

  The main processing unit 101 is connected to each processing unit and each recording unit inside the mobile phone 100, and performs various processing instructions to each processing unit and refers to and updates data recorded by each recording unit.

  The wireless communication processing unit 102 performs radio wave transmission / reception processing with the base station 200 of the mobile phone communication network.

  The key operation input processing unit 103 performs a key operation reception process executed by the user 300 of the mobile phone 100.

  The screen display processing unit 104 performs display processing for showing the processing result as the mobile phone 100 to the user 300.

  The phone book data recording unit 105 holds a name, a telephone number, a mail address, and the like registered by the user 300.

  The control data recording unit 106 holds personal authentication information such as a lock state of the mobile phone 100 and a password for switching the lock state, which is necessary for controlling the operation of the personal information protection function. The lock state of the mobile phone 100 includes a normal mode, a lock mode, and a mail transmission / reception partial permissible lock mode, and any one state is set. The personal authentication information for switching the lock state may be biometric information such as a fingerprint or a voiceprint.

  The received mail recording unit 107 holds mail information received through the wireless communication processing unit 102.

  Next, an operation for controlling the mail transmission / reception function in this embodiment will be described.

  FIG. 2 is a flowchart showing the flow of the lock state switching operation in the mobile communication terminal of the present embodiment.

  The cellular phone 100 holds the locked state of the cellular phone 100 in the control data recording unit 106. The user 300 can execute a switching instruction through the key operation input processing unit 103 regardless of whether the mobile phone 100 is in the normal mode, the lock mode, or the mail transmission / reception partial permission lock mode.

  First, when executing the switching instruction, the user 300 uses the key operation input processing unit 103 to input a state to be set (hereinafter referred to as a designated state) and a password. The key operation input processing unit 103 receives the input designation state and the password, and transmits them to the main processing unit 101 (step S1).

  Next, the main processing unit 101 compares the code number for switching the lock state recorded in the control data recording unit 106 with the code number transmitted from the key operation input processing unit 103 (step S2).

  If the comparison results match (step S2 / YES), the main processing unit 101 updates the lock state recorded in the control data recording unit 106 to the specified state transmitted from the key operation input processing unit 103 (step S3). ) Notifies the user 300 that the switching has been normally executed (“switching completed”) through the screen display processing unit 104 (step S4).

  On the other hand, when the comparison results do not match (step S2 / NO), the main processing unit 101 notifies the user 300 that the password is different (“password is invalid”) through the screen display processing unit 104. (Step S5).

  FIG. 3 is a flowchart showing a flow of control operation of the mail transmission function in the mobile communication terminal of the present embodiment.

  First, when mail transmission is performed, the user 300 instructs the key mail input processing unit 103 to activate the transmission mail creation function. The key operation input processing unit 103 receives the input transmission mail creation function activation instruction and transmits it to the main processing unit 101 (step S11).

  Next, the main processing unit 101 makes a determination with reference to the lock state recorded in the control data recording unit 106 (step S12).

  When the locked state is the lock mode (step S12 / YES), the main processing unit 101 informs the user 300 that the outgoing mail creation function cannot be activated (“not activated”) through the screen display processing unit 104. Notification is made (step S13).

  When the lock state is the normal mode or the mail transmission / reception partial permissible lock mode (step S12 / NO), the main processing unit 101 notifies the user 300 that the outgoing mail creation function has been activated through the screen display processing unit 104. At the same time, a screen display is performed so as to select and input either the method of determining the destination mail address by referring to the phone book data or the method of determining by directly inputting from the user (step S14). ).

  Then, the user 300 inputs a destination mail address determination method through the key operation input processing unit 103. The key operation input processing unit 103 transmits the input destination mail address determination method to the main processing unit 101 (step S15).

  Subsequently, the main processing unit 101 makes a determination with reference to the lock state recorded in the control data recording unit 106 and the destination mail address determination method transmitted from the key operation input processing unit 103 (step S16). To S18).

  When the destination e-mail address determination method is phone book data reference (step S16 / NO) and the lock state is the mail transmission / reception partial permissible lock mode (step S17 / NO), the main processing unit 101 displays the screen. Through the processing unit 104, the user 300 is notified that the phone book data cannot be referred to ("phone book cannot be referred") (step S18). Note that when the lock state is the lock mode, “activation is not possible” (step S13). Therefore, the lock state when the outgoing mail creation function is activated is either the mail transmission / reception partial allowable lock mode or the normal mode. It becomes.

  When the destination e-mail address determination method is telephone book data reference (step S16 / NO) and the lock state is the normal mode (step S17 / YES), the main processing unit 101 passes the screen display processing unit 104. The screen is displayed so that the user 300 selects and inputs the telephone book data reference method (step S19), and the user 300 determines the telephone book data reference method through the key operation input processing unit 103 and the screen display processing unit 104. Then, phone book data selection and destination mail address determination are performed (step S20).

  On the other hand, when the destination email address determination method is direct input (step S16 / YES), the main processing unit 101 displays the screen so that the user 300 directly inputs the destination email address through the screen display processing unit 104. Then, the user 300 directly inputs the destination email address through the key operation input processing unit 103 and the screen display processing unit 104, and determines the destination email address (step S22). Note that the above steps are performed regardless of whether the lock mode is the mail transmission / reception partial permission lock mode or the normal mode.

  When the transmission destination mail address is determined, the user 300 inputs and determines the text of the transmission mail through the key operation input processing unit 103 and the screen display processing unit 104 (step S23), and the mail 300 through the wireless communication processing unit 102. Is transmitted (step S24).

  FIG. 4 is a flowchart showing a flow of control operation of the mail receiving function in the mobile communication terminal of the present embodiment.

  First, when a mail is received, the wireless communication processing unit 102 receives a radio wave transmitted from the base station 200 and transmits a signal indicating that the mail has been received to the main processing unit 101 (step S41).

  Next, the main processing unit 101 records the received mail information in the received mail recording unit 107 (step S42), and makes a determination with reference to the lock state recorded in the control data recording unit 106 (step S42). Step S43).

  When the lock state is the lock mode (step S43 / YES), the main processing unit 101 does not give any instruction to the screen display processing unit 104 and does not notify the user 300 that there is a received mail (step). S44).

  When the lock state is the normal mode or the mail transmission / reception partial permissible lock mode (step S43 / NO), the main processing unit 101 notifies the user 300 that the mail has been received through the screen display processing unit 104 and receives it. Whether or not to display a mail list screen is selected and displayed (step S45).

  Then, the user 300 designates and inputs whether or not to display the received mail list screen through the key operation input processing unit 103. The key operation input processing unit 103 accepts the input list screen display permission designation and transmits it to the main processing unit 101 (step S46).

  Next, the main processing unit 101 makes a determination with reference to the list screen display availability designation transmitted from the key operation processing unit 103 (step S47).

  When it is specified not to display the list screen display availability (step S47 / NO), the screen display processing unit 104 displays on the screen that the received unread mail exists to the user 300 (step S48).

  When it is specified to display the list screen display availability (step S47 / YES), the determination is made with reference to the lock state recorded in the control data recording unit 106 (step S49).

  When the lock state is the mail transmission / reception partial permissible lock mode (step S49 / NO), the main processing unit 101 notifies the user 300 that the received mail list cannot be referred to via the screen display processing unit 104 (“received mail”). "List not available") is displayed on the screen and notified (step S50). When the lock state is the lock mode, the presence of the received mail is not displayed on the screen (step S44). Therefore, the determination of the lock state when it is specified to display the list screen display permission / rejection is the mail transmission / reception partial allowable lock It is determined whether the mode is the normal mode.

  If the lock state is the normal mode, the main processing unit 101 refers to the received mail recording unit 107 to obtain a list of received mails (step S51), and sets the source mail address of each received mail as a key. Then, the name corresponding to the corresponding mail address is searched from the telephone directory data recording unit 105 (step S52). Then, the main processing unit 101 determines a name search result (step S53).

  If the name can be acquired (step S53 / YES), it is determined that the name is displayed as the received mail list (step S54). If the name cannot be acquired (step S53 / NO), the received mail list is displayed. It is determined that the sender mail address is displayed (step S55).

  Subsequently, the main processing unit 101 displays the received mail list on the screen of the user 300 through the screen display processing unit 104 (step S56), and the user 300 receives it through the key operation input processing unit 103 and the screen display processing unit 104. A received mail is selected from the mail list, and the text of the received mail is displayed (step S57).

  According to this embodiment, according to the lock state set based on the user's intention, it is possible to control services that can be provided at a stepwise level with respect to mail transmission / reception. For example, if the lock state is set to the normal mode, the mail transmission / reception function of the mobile phone can be used as usual. If the lock state is set to the mail transmission / reception partial allowance lock mode, mail can be sent without referring to the phone book data, and mail reception can be performed without resetting the lock state to the normal mode. It is possible to recognize what happened. If the lock state is set to the lock mode, it is possible to suppress all mail transmission and reception services. The reason is to maintain the lock state in stages and change the services that can be provided for mail transmission / reception at each stage.

<Embodiment 2>
Next, a second embodiment of the present invention will be described. The configuration is the same as that of the first embodiment described above, but, among the lock states held in the control data recording unit 106, the mail transmission / reception partial allowable lock mode is changed to the mail book transmission / reception phone book reference suppression mode and the mail transmission / reception address. It is different in that it is held in two display modes. That is, there are four mail transmission lock states of the mobile phone 100: a normal mode, a lock mode, a phone book reference suppression mode during mail transmission / reception, and an address display mode during mail transmission / reception, and any one lock state is set. A lock state switching instruction can be executed through the key operation input processing unit 103. Hereinafter, description of the functional configuration and the lock state switching operation will be omitted, and the operation for controlling the mail transmission / reception function will be described.

  FIG. 5 is a flowchart showing a flow of control operation of the mail transmission function in the mobile communication terminal of the present embodiment.

  When mail transmission is performed, the operation when the lock state of the mobile phone 100 is the lock mode is the same as that in the first embodiment (steps S11 to S13). In addition, when the lock state is other than the lock mode, an operation for notifying the user 300 that the outgoing mail creation function has been activated, a method for determining the destination mail address with reference to the phone book data, and the user 300 The operation of displaying the screen to select and input any of the methods to be determined by direct input and the operation in which the user 300 inputs and accepts the destination mail address determination method are the same as in the first embodiment. Yes (steps S14 and S15). Since the operation after receiving the destination mail address determination method is different from that of the first embodiment, this flowchart describes the operation flow after receiving the destination mail address determination method.

  First, the main processing unit 101 makes a determination with reference to the lock state recorded in the control data recording unit 106 and the destination mail address determination method transmitted from the key operation input processing unit 103 (steps S61 to S61). S63).

  If the destination e-mail address determination method is phone book data reference (step S61 / NO) and the phone book reference deterrence mode is set during mail transmission / reception (step S62 / YES), the main processing unit 101 performs screen display processing. Through the unit 104, the user 300 is notified that the telephone book data cannot be referred to (step S64). Note that the locked state after the outgoing mail creation function is activated is any of the telephone book reference suppression mode during mail transmission / reception, the address display mode during mail transmission / reception, or the normal mode.

  When the destination e-mail address determination method is the telephone book data reference (step S61 / NO) and the lock state is the address display mode during mail transmission / reception (step S62 / NO, step S63 / YES), the main processing unit 101 displays all the mail addresses registered in the phone book data to the user 300 through the screen display processing unit 104 and selects them or selects only the mail addresses registered in the phone book data that match the front. A screen is displayed so as to select whether to display and select (step S65).

  Then, the user 300 inputs an all-case display designation or a forward match search designation through the key operation input processing unit 103, and also inputs a character string as a search condition in the case of the forward match search designation. The key operation input processing unit 103 receives the input display designation and search condition character string and transmits them to the main processing unit 101 (step S66).

  Subsequently, the main processing unit 101 makes a determination with reference to the display designation and search condition character string transmitted from the key operation input processing unit 103 (step S67).

  If the display designation is all-case display designation (step S67 / YES), the main processing unit 101 acquires all mail addresses registered in the telephone directory data recording unit 105 (step S68).

  When the display designation is a forward matching search designation (step S67 / NO), the main processing unit 101 starts from the designated search condition character string among all the mail addresses registered in the telephone directory data recording unit 105. Only the mail address that starts is acquired (step S69).

  The list of e-mail addresses acquired by the main processing unit 101 is displayed on the screen as a list of acquired e-mail addresses through the screen display processing unit 104 (step S70), and the user 300 transmits the destination e-mail through the key operation input processing unit 103. An address is selected and determined (step S71).

  When the destination mail address determination method is phone book data reference (step S61 / NO) and the lock state is the normal mode (step S62 / NO, step S63 / NO), the main processing unit 101 displays the screen. A screen is displayed so that the telephone book data reference method is selected and input through the display processing unit 104 (step S72), and the user 300 transmits the phone book data reference method through the key operation input processing unit 103 and the screen display processing unit 104. Determination, telephone directory data selection, and transmission destination mail address determination are performed (step S73). When selecting phone book data, a search with reference to the name registered in the phone book data recording unit 105 is made possible.

  On the other hand, when the destination email address determination method is a direct input (step S61 / YES), the operation until the destination email address is determined is the same as that in the first embodiment (step S18, steps S22 to S24). .

  When the transmission destination mail address is determined, the user 300 inputs and determines the text of the transmission mail through the key operation input processing unit 103 and the screen display processing unit 104 (step S74), and the mail 300 through the wireless communication processing unit 102. Is transmitted (step S75).

  FIG. 6 is a flowchart showing a flow of control operation of the mail receiving function in the portable communication terminal of the present embodiment.

  First, when receiving a mail, the wireless communication processing unit 102 receives a radio wave transmitted from the base station 200 and transmits a signal indicating that the mail has been received to the main processing unit 101 (step S81).

  Next, the main processing unit 101 records the received mail information in the received mail recording unit 107 (step S82) and makes a determination with reference to the lock state recorded in the control data recording unit 106 (step S82). Step S83).

  When the lock state is the lock mode (step S83 / YES), the main processing unit 101 does not give any instruction to the screen display processing unit 104 and does not notify the user 300 that the received mail exists (step S84). ).

  When the locked state is any one of the normal mode, the phonebook reference suppression mode during mail transmission / reception, or the address display mode during mail transmission / reception (step S83 / NO), the main processing unit 101 passes the screen display processing unit 104 to the user. The fact that the mail has been received is notified to 300, and a screen is displayed to select and input whether to display the received mail list screen (step S85).

  Then, the user 300 designates and inputs whether or not to display the received mail list screen through the key operation input processing unit 103. The key operation input processing unit 103 receives the input designation of whether to display the list screen and transmits it to the main processing unit 101 (step S86).

  Subsequently, the main processing unit 101 makes a determination with reference to the list screen display permission designation transmitted from the key operation processing unit 103 (step S87).

  When it is specified not to display the list screen display availability (step S87 / NO), the screen display processing unit 104 displays that there is a received unread mail (step S88).

  If it is specified to display the list screen display availability (step S87 / YES), the lock state recorded in the control data recording unit 106 is referred to make a determination (step S89, step S90).

  When the lock state is the telephone book reference suppression mode during mail transmission / reception (step S89 / YES), the main processing unit 101 notifies the user 300 that the received mail list cannot be referenced through the screen display processing unit 104 ( Step S91).

  When the lock state is the mail display address display mode (step S90 / YES), the main processing unit 101 refers to the received mail recording unit 107 to obtain a list of received mails (step S92), and the screen A list of sender mail addresses of received mail is displayed on the screen through the display processing unit 104 (step S93). In this case, the text of the corresponding received mail cannot be displayed from the list of sender email addresses displayed on the screen.

  When the lock state is the normal mode (step S90 / NO), the operation until the text of the received mail is displayed is the same as in the first embodiment (steps S51 to S57 in FIG. 4).

  The effect of the present embodiment can further subdivide the lock state set based on the user's intention, and control services that can be provided at a level in accordance with a more specific user request. For example, if the lock status is set to the phonebook reference suppression mode when sending / receiving emails, when sending emails, even if the destination email address determination method is specified as phonebook data reference, phonebook data reference It is possible to prevent the received mail list from being referred to even when it is specified to display a list screen when receiving mail. Also, if the lock state is set to the mail transmission / reception address display mode, the desired mail address is acquired when the mail address determination method is designated as phonebook data reference when sending mail. When a mail is received, a list of received mails can be acquired when it is designated to display a list screen.

  A computer-readable recording medium that records the program code of the software that realizes the functions of the embodiments of the present invention described above, that is, a storage medium is supplied to the mobile communication terminal, and the computer (CPU) of the mobile communication terminal stores it. The object of the present invention can also be achieved by reading and executing the program code stored in the medium.

  In this case, the program code itself read from the storage medium realizes the functions of the above-described embodiment, and the recording medium on which the program code is recorded constitutes the present invention.

  Examples of the storage medium for supplying the program code include a floppy (registered trademark) disk, a hard disk, an optical disk, a magneto-optical disk, a CD-ROM, a CD-R, a nonvolatile memory card, a ROM, and a magnetic tape. Can be used.

  The above-described embodiment is a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiment alone, and various modifications are made without departing from the gist of the present invention. Implementation is possible.

It is a functional block diagram of a mobile phone according to an embodiment of the present invention. 5 is a flowchart showing a flow of a lock state switching operation in the mobile phone according to the embodiment of the present invention. It is the flowchart which showed the flow of control operation | movement of the mobile telephone mail transmission function which concerns on embodiment of this invention. It is the flowchart which showed the flow of control operation | movement of the mobile telephone mail reception function which concerns on embodiment of this invention. It is the flowchart which showed the flow of control operation | movement of the mobile telephone mail transmission function which concerns on embodiment of this invention. It is the flowchart which showed the flow of control operation | movement of the mobile telephone mail reception function which concerns on embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Mobile phone 101 Main processing part 102 Wireless communication processing part 103 Key operation input processing part 104 Screen display processing part 105 Phonebook data recording part 106 Control data recording part 107 Received mail recording part 200 Base station 300 User

Claims (14)

A mobile communication terminal having a mail transmission / reception function and a personal information protection function that suppresses only a function that operates by referring to personal information recorded in the mobile communication terminal,
In the function restriction state of the mail transmission / reception function, a lock mode that completely restricts the transmission and reception of mail, a partial permissible lock mode that partially restricts the transmission and reception of mail, and a normal that does not restrict the transmission and reception of mail Control data storage means for storing information relating to a function restriction state including three modes of modes, and storing personal authentication information necessary for realizing the personal information protection function;
Main control means for referring to or updating data stored in the mobile communication terminal and instructing various processing to the processing means in the mobile communication terminal ;
Have,
The main control unit, a mobile communication terminal based on information about the function restriction state stored by said control data storing means, and performs control of the mail transmitting and receiving function. The main control means disables the operation for creating the outgoing mail when the function restriction state is the lock mode, and operates for the creation of the outgoing mail when the function restriction state is the partial permissible lock mode. 2. The mobile communication terminal according to claim 1 , wherein control is performed so as to enable the operation of referring to the telephone directory data. The main control means disables the operation for the notification of received mail when the function restriction state is the lock mode, and operates for the notification of the reception mail when the function restriction state is the partial permissible lock mode. together to enable, portable communication terminal according to claim 1 or 2, characterized in that the control of the inoperable for the reference of the received mail list. The partial permissible lock mode includes a phone book data reference suppression mode that completely restricts reference to the phone book data when sending and receiving mail, and an address reference permission that allows reference to a mail address in the phone book data when sending and receiving mail. The mobile communication terminal according to claim 1 , further comprising a mode. The main control means, when the function restriction state is the lock mode, disables the creation of outgoing mail, and when the function restriction state is the telephone book data reference suppression mode, the main control means creates the outgoing mail. When the function restriction state is the address reference permission mode, the outgoing mail is created and the mail address is referenced in the telephone book data. 5. The portable communication terminal according to claim 4 , wherein the mobile communication terminal is controlled so as to be operable and to be disabled when referring to the telephone directory data other than the mail address. The main control means, when the function restriction state is the lock mode, disables the operation for the notification of the received mail, and when the function restriction state is the phonebook data reference suppression mode, the notification of the received mail The operation of the received mail list is disabled, and when the function restriction state is the address reference permission mode, the received mail is notified and the mail address is referenced in the received mail list. possible and then, the mobile communication terminal according to claim 4 or 5, characterized in that the control of the inoperable for the reference of the email body of the received the mail list. A mail transmission / reception function and a personal information protection function that suppresses only a function that operates by referring to personal information recorded in the mobile communication terminal, and transmits and receives mail in a function-restricted state of the mail transmission / reception function. Stores information related to the function restriction state including a lock mode that restricts the whole, a partial allowable lock mode that restricts transmission and reception of mail partially, and a normal mode that does not restrict transmission and reception of mail. , A mail transmission / reception function control method for a mobile communication terminal having control data storage means for storing personal authentication information necessary for realizing the personal information protection function,
A main control step of referring to or updating data stored in the mobile communication terminal and instructing various processing to processing means in the mobile communication terminal;
The main control step, based on the information on the function restriction state stored by said control data storage means, mail transmitting and receiving function control method for a mobile communication terminal and performs control of the mail transmitting and receiving function. The main control step disables the operation for creating the outgoing mail when the function restriction state is the lock mode, and operates for the creation of the outgoing mail when the function restriction state is the partial permissible lock mode. 8. The method for controlling a mail transmission / reception function of a mobile communication terminal according to claim 7 , wherein control is performed so that the operation is disabled and the operation of referring to the telephone directory data is disabled. The main control process is disabled for notification of received mail when the function restriction state is the lock mode, and operates for notification of received mail when the function restriction state is the partial permissible lock mode. 9. The method for controlling a mail transmission / reception function of a mobile communication terminal according to claim 7 or 8 , wherein the control is performed so that the received mail list can be referred to and disabled. The partial permissible lock mode includes a phone book data reference suppression mode that completely restricts reference to the phone book data when sending and receiving mail, and an address reference permission that allows reference to a mail address in the phone book data when sending and receiving mail. The mail transmission / reception function control method of the mobile communication terminal according to claim 7 , further comprising: a mode. The main control step disables the operation for creating outgoing mail when the function restriction state is the lock mode, and creates the outgoing mail when the function restriction state is the phonebook data reference suppression mode. When the function restriction state is the address reference permission mode, the outgoing mail is created and the mail address is referenced in the telephone book data. 11. The method of controlling mail transmission / reception functions of a mobile communication terminal according to claim 10 , wherein control is performed to enable operation and to disable operation for referring to the phone book data other than the mail address. The main control step disables the received mail notification when the function restriction state is the lock mode, and notifies the received mail when the function restriction state is the phonebook data reference suppression mode. The operation of the received mail list is disabled, and when the function restriction state is the address reference permission mode, the received mail is notified and the mail address is referenced in the received mail list. 12. The method for controlling a mail transmission / reception function of a mobile communication terminal according to claim 10 or 11 , wherein control is performed to enable the operation of referring to a mail text in the received mail list. Program for executing mail transmission and reception function control method for a mobile communication terminal according to the portable communication terminal of claims 7 to 12. A recording medium on which the program according to claim 13 is recorded.

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