JPH11184778A - Electronic mail device and medium recording electronic mail program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent characters from being deformed by no coincidence of character code systems between both mail transmission and reception sides by converting codes concerning the selected character code system corresponding to a character set built in a device. SOLUTION: When processing for storing received mail in a received mail store area JM (mail box) is completed, a CPU identifies a country identification symbol added to the end of a transmitter address SAD in the stored received mail. Next, a character code converting table CT corresponding to this identified country identification symbol is selected and continuously, while using the selected character code converting table CT, the character code of received mail MAIL(n) is converted to the character set (display font) built in the device. Thus, it is not necessary to manually select the character code, and characters are prevented from being deformed by automatically converting codes so that the character code system of the transmitted mail can be matched with the reception side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic mail apparatus and a medium recording an electronic mail program suitable for use in a PDA (Personal Digital Assistant) connected to a network by wireless or wired communication.

[0002]

2. Description of the Related Art Conventionally, there has been known an electronic mail apparatus for transmitting and receiving electronic mail via the Internet and an intranet. In particular, in recent years, a PHS terminal and an electronic mail apparatus have been combined and connected to a network by wireless communication. Email exchanges have also been put to practical use.

[0003] Such an electronic mail device, when dial-up-connected to a mail server computer (hereinafter abbreviated as "server") constituting a network, first inquires of the server whether there is any new mail, and when there is new mail, the server side. Will have the new mail addressed to your address delivered, store it in your own mailbox and open the mail. On the other hand, when a dedicated line is connected, the server directly delivers the mail to the receiving mailbox of the electronic mail device every time the mail arrives.

[0004]

By the way, in the conventional electronic mail device, if the mail is opened with the character code systems of both the mail transmitting and receiving sides not matching, the character is garbled and the contents of the mail cannot be read. Occurs. Therefore, in the past, when such garbled characters occurred, it was possible to manually switch to match the character code system on the receiving side in order to match the character code system of the sent mail, but the character code system was Since there is a wide range of differences depending on each case, for example, there is a problem that a user unfamiliar with the operation selects an incorrect character code system without knowing which character code system to switch to.

The present invention has been made in view of such circumstances, and provides an electronic mail apparatus and a medium on which an electronic mail program is recorded, which prevents garbled characters due to mismatching of a character code system on both sides of a mail. It is an object.

[0006]

In order to achieve the above object, in the electronic mail apparatus according to the present invention, a mail receiving means for receiving a mail and an attribute of the mail received by the mail receiving means are provided. Code identification means for identifying the character code system of the mail, provided corresponding to various character code systems, from among these, select the character code system identified by the code identification means, and select the character code system Code conversion means for performing code conversion so as to correspond to a character set built in the device.

According to the second aspect of the present invention, the code identifying means identifies the character code system of the received mail according to a country identification code added to the end of the address of the received mail. It is characterized by doing.

According to the third aspect of the present invention, the code identification means identifies a character code system of the received mail according to type information included in the address data of the received mail. It is characterized by doing.

According to a fourth aspect of the present invention, there is provided a medium storing a program for opening an electronic mail, wherein a character code system of the electronic mail is identified based on a country identification code added to the end of the address of the received electronic mail. Select a character code conversion table corresponding to the identified character code system from among a plurality of character code conversion tables provided corresponding to the character code system, and refer to the selected character code conversion table for the mail. Character conversion is performed so that the character code system corresponds to a character set built into the device.

In the electronic mail device according to the present invention, a display font corresponding to a plurality of languages is prepared in advance, and a character code system and a corresponding display font are set according to the mail address of the received mail. And automatically display the mail.

[0011] According to a sixth aspect of the present invention, there is provided a medium in which a program for displaying an e-mail is recorded, a display font corresponding to a plurality of languages is prepared in advance, and a mail address of the received e-mail is provided. It is characterized by automatically switching to a character code system and a corresponding display font in response to mail display.

In the first invention, a character code system of the received mail is identified based on a country identification code added to the end of the address of the received mail, and a plurality of characters provided corresponding to various character code systems are provided. Select a character code conversion table corresponding to the identified character code system from the code conversion tables, and refer to the selected character code conversion table to make the character code system of the mail correspond to the character set built into the device. Since the conversion is performed, it is possible to prevent garbled characters due to mismatching of the character code systems on both sides of the mail. Further, in the second invention, a display font corresponding to a plurality of language zones is prepared in advance, and automatically switched to a character code system and a corresponding display font according to the mail address of the received mail. Since the mail is displayed, it is possible to prevent garbled characters due to a difference in fonts while preventing garbled characters due to character code system mismatch.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An electronic mail device according to the present invention
The present invention can be applied not only to a PDA (Personal Digital Assistant) connected to a network by wireless communication or wired communication, but also to a server computer constituting the network. Hereinafter, an e-mail device according to an embodiment of the present invention will be described as an example with reference to the drawings.

A. 1. Configuration of Embodiment (1) Overall Configuration FIG. 1 is a block diagram showing a configuration of a mail system to which an electronic mail device according to an embodiment of the present invention is applied.
In this figure, reference numeral 1 denotes a server computer (hereinafter, abbreviated as a server) connected to the network NT, which manages mail transfer for each mail address under the server. In the case of this embodiment, when the server 1 receives a mail, it stores the received mail in a folder corresponding to the destination address of the mail, and stores the received mail in the terminal 2 of the destination address.
The side forwards the received mail in response to the inquiry of the new mail.

Reference numerals 2-1 to 2-N denote portable information terminals (hereinafter abbreviated as PDAs) to which the electronic mail device according to the present invention is applied, and servers on a network via a dedicated line network LC such as a LAN. Connected to 1. This PDA2-
1-2-N have a plurality of independent processing functions such as a scheduler function and a timekeeping (calendar) function like a well-known electronic organizer, and when an e-mail function is selected and executed among them, The server 1 is inquired of the new mail, and receives the mail transferred from the server 1 in response to the inquiry, or transmits the created mail to the server 1.

PDA 2-1 to 2-N are composed of elements 2a to 2g
Consists of Reference numeral 2a denotes a CPU for controlling each unit of the apparatus, and its characteristic operation will be described later. 2b is CP
A ROM for storing various control programs loaded into the U2a and screen data for forming various display screens related to sending and receiving mails. Some of the various screen data stored in the ROM 2b are transferred to a RAM 2c described later. The various program data stored in the ROM 2b may be stored in a magnetic recording medium or a magneto-optical recording medium and read out by an external storage device (not shown) corresponding to the medium. Alternatively, a rewritable nonvolatile solid-state memory such as a flash memory or the like may be used.

The RAM 2c is used as a work area for the CPU 2a, and has various storage areas such as a mail creation area for sending and receiving mails, and stores data necessary for sending and receiving mails, such as received mails and a plurality of destination addresses. The main memory configuration will be described later. The area for storing the data table necessary for mail transmission / reception may be, for example, a form in which a rewritable nonvolatile memory such as a flash memory is assigned.

Reference numeral 2d denotes a display unit composed of an LCD panel or the like, which displays various screens (described later) relating to mail transmission / reception based on a display control signal supplied from the CPU 2a. 2e is a keyboard for key input, and 2f is a mouse for clicking various icons. 2g is CP
A communication control unit that controls transmission and reception of mail with the server 1 according to a predetermined protocol under the instruction of U2a.

(2) Memory Configuration of RAM 2a Next, a main memory configuration of the RAM 2a will be described with reference to FIG. In FIG. 2, MS is a mail creation area in which various data necessary for mail creation, that is, a destination address AAD, a sender address SAD, a subject KM, and a body HB are stored. The mail creation area MS has an area for storing screen data for forming a mail creation screen described later, and also has a mail buffer used when creating a mail.

AD is an address area, which stores a mail address for each individual and addresses (1) to (N) including information accompanying the mail address. This address area A
This is referred to when a desired mail address is selected from D and registered as the destination address AAD of the transmitted mail. Each address (1) to (N) is a data NAME,
It is composed of data ADDRESS and data TYPE. Here, the data NAME stores an individual name or a handle name, the data ADDRESS stores an electronic mail address, and the data TYPE stores information indicating a mail attribute (presence or absence of an attached file, character type, etc.).

JM is a received mail store area corresponding to a mailbox, and stores received mails MAIL (1) to (N) received from the server 1. Each mail MA
IL (1) to (N) are the sender addresses SAD, respectively.
(Including personal name or handle name), Subject KM, Body H
B, TIME indicating reception time and opening flag KAI
It consists of FUF. The opening flag KAIFUF is a flag for identifying opening / unopening, and is “0” when opened.
However, "1" is set in the unopened state.

CT1 to CTn are a group of character code conversion tables for performing code conversion so that the character code system of the received mail corresponds to a character set (display font) built into the apparatus. The character code conversion tables are provided at the end of the sender address SAD of the received mail. Either one is selected according to the country identification code to be given.
For example, if the country identification symbol at the end of the received mail address is ".uk (UK)", the character code conversion table CT2 (ASCII-UK) is selected, and the character code system of the received mail is determined by this table CT2. Automatically convert to built-in character set. In other words, the character code system of the transmitted mail is automatically converted so as to match the receiving side, thereby preventing garbled characters.

B. Next, various operations implemented by the embodiment having the above configuration will be described. In the following, when the server 1 receives an e-mail, the server 1 stores the received e-mail in a folder corresponding to the destination address of the e-mail, and forwards the received e-mail in response to an inquiry for a new arrival mail from the terminal 2 of the destination address. Or send outgoing mail from the PDA 2 to the destination address. Therefore,
Here, the processing operation of the server 1 will not be described in detail, and only the characteristic operation of the PDA 2 will be described.

(1) Outline of Operation As described above, the PDA 2 has a plurality of independent various processing functions such as a scheduler function and a timekeeping (calendar) function like a well-known electronic organizer. For example, the timekeeping (calendar) function counts the timer clock at all times by a timer interrupt to advance the current time (including the date), and the current time (date and time) is set according to the power supply of the apparatus. Is included in the display unit 2d. Such a timekeeping (calendar) function also operates in parallel when an e-mail function described later is executed. Specifically, the time at which an e-mail is transmitted and received is measured.

Now, when the e-mail function is executed,
That is, when a mail icon (not shown) is pointed and clicked with the mouse 2f in a state where a startup menu screen (not shown) is displayed on the display unit 2d, the PDA 2 implements an e-mail function. "Reception processing routine" and "Main routine"
Is executed.

The "reception process routine" is a process executed by interruption every predetermined time. When a mail arrival notification is received from the server 1, the storage state of the reception mail store area (mail box) JM of the RAM 2c is changed. If the area JM is vacant, the received mail is stored as it is, and if the area JM is full, the oldest stored mail is deleted and the newly received mail is stored. I do. Then, one of the character code conversion table groups CT1 to CTn is selected based on the country identification code added to the end of the sender address SAD of the stored received mail, and the selected character code conversion table CT is selected.
Thus, the character code of the received mail is converted into a character set (display font) built in the device. On the other hand, in the “main routine”, a function for opening and displaying the mail received in the above “reception processing routine” and a mail for setting the above-mentioned optimal reply time HT at the time of mail deletion, mail creation and transmission A series of “reception display processing routine” for performing the creation processing is called.

(2) Specific Operation Next, a series of processing operations for realizing the above-described electronic mail function will be described with reference to FIGS. In the following, first, the "reception processing routine" executed by interruption will be described, and then the "main routine" will be referred to.
Subsequently, a series of processing operations forming a “reception display processing routine” called from the “main routine” will be sequentially described.

A. Operation of Reception Processing Routine When the PDA 2 accesses the server 1 via the network NT, the CPU 2a interrupts the reception processing routine shown in FIG. 3 at regular intervals. When this routine is executed, the CPU 2a advances the process to step Sa1, and determines whether or not the server 1 has notified the arrival of the mail.

Now, for example, the P being accessed by the server 1
For DA2, it is checked whether there is a new mail corresponding to the mail address, and it is assumed that there is a new mail. Then, the server 1 sends a response indicating that the mail has arrived to the PD.
The data is transmitted to the A2 side, and in response, the PDA2 determines "YES" in the above step Sa1 and proceeds to the next step Sa2. On the other hand, if there is no response indicating that the mail has arrived, the result of this determination is "NO". In this case, this routine is temporarily completed, and the process returns to the main routine described later.

(A) Storing of received mail When mail reception is started, the CPU 2a advances the process to step Sa2, sets the value of the pointer register n to an initial value "1", and in the next step Sa3, It is determined whether or not the mail area MAIL (n) in the received mail store area JM (see FIG. 2) corresponding to the value of the pointer register n is free.

When there is a vacancy in the mail area MAIL (n) When there is a vacancy in the mail area MAIL (n), the result of the determination in step Sa3 is "YES", the process proceeds to the next step Sa4, and the pointer register n The received mail received from the server 1 is stored in the mail area MAIL (n) in the received mail store area JM (see FIG. 2) corresponding to the value of.

Next, when the process proceeds to step Sa5, the CPU
2a is the opening flag KAI of the mail area MAIL (n).
FUF (n) is set to "0" to indicate an unopened state. Then, in step Sa6, the mail area MA
The reception time (including the date) is stored in the register TIME (n) of the IL (n), and the process proceeds to step Sa7 described later.

When there is no free space in the mail area MAIL (n) On the other hand, when there is no free space in the mail area MAIL (n), the result of the determination in step Sa3 becomes "NO", the process proceeds to step Sa8, and the pointer register The value of n is incremented by one and incremented, and in the following step Sa9, it is determined whether or not the maximum number of mails that can be stored in the received mail store area JM has been exceeded. Here, if the maximum number of emails is not exceeded, the determination result is “NO”,
The process returns to step Sa3 described above, and it is determined again whether or not the mail area MAIL (n) is empty.

On the other hand, all mail areas MAIL
If the received mail is stored and the received mail store area JM (mailbox) is full, the result of the determination in step Sa9 is "YES", and the process proceeds to step Sa10. In step Sa10, a mail having the oldest reception time TIME (hereinafter referred to as the oldest mail) is searched from the mail group stored in the received mail store area JM (mail box).

In step Sa11, the oldest mail that has been searched is deleted, while the number of the oldest mail that has been deleted is set in the pointer register n. Thereafter, the above-described steps Sa4 to Sa6 are executed, the newly received mail is stored in the area of the oldest mail that has been deleted, the opening flag KAIFUF (n) of the mail is set to “0”, and the register TIME ( The reception time (including the date) is set in n).

(B) Character code conversion When the processing of storing the received mail in the received mail store area JM (mail box) is completed, the CPU
2a advances the process to step Sa7, and identifies the country identification code added to the end of the sender address SAD of the stored received mail. Next, in step Sa12, a character code conversion table CT corresponding to the identified country identification code is selected, and in subsequent step Sa13, the received mail MAIL is used using the selected character code conversion table CT.
The character code of (n) is converted into a character set (display font) built in the device. This eliminates the need to manually select the character code as in the conventional case, and automatically converts the character code system of outgoing mail to match the receiving side, thereby preventing garbled characters. ing.

B. Operation of Main Routine Next, the operation of the main routine will be described with reference to FIG. First, when the PDA 2 is powered on, the CPU
2a loads a predetermined control program stored in the ROM 2b, executes a main routine shown in FIG. 4, advances the process to step Sb1, resets various register flags provided in the RAM 2c to zero, and sets initial values. Thereafter, a start menu (not shown) is displayed on the display unit 2d on the screen.

If the process proceeds to step Sb2 in a state where the start menu is displayed on the screen, it is determined whether or not the ON flag stored in the register ONF is set to "1".
That is, it is determined whether or not the mail icon (not shown) is selected and executed by an operation such as a click and the electronic mail function is being executed. If the e-mail function is not being executed, the ON flag is “0”, so the result of the determination in step Sb2 is “NO”, and step Sb3
The processing proceeds to "Other processing". Here, the “other processes” refer to various processes executed in the PDA 2 and include, for example, a scheduler function and an address book management function.

When the "other processing" is completed, the CP
When the process of U2a proceeds to step Sb4, it is determined whether or not a mail icon (not shown) in the start menu screen is selected and executed by an operation such as a click. Here, when an icon for selecting and executing processing other than the mail icon is clicked, the determination result is “NO”, and the processing advances to step Sb5 to perform the selected and executed “other processing”. When the mail icon is clicked, the determination result is "YES", the process proceeds to step Sb6, and the ON flag stored in the register ONF is set to "1".

As a result, the result of the determination in step Sb2 is "YES", and the flow advances to step Sb7 to execute a reception display processing routine. This reception display processing routine includes a function for opening and displaying the received mail stored in the received mail store area JM (mail box) by the above-described reception processing routine (see FIG. 3), a function for deleting the mail, and a method for creating and transmitting the mail. Then, a series of "reception display processing" such as processing for setting a timer for the optimum return time HT set by the above-described reception processing routine is called. As described above, in the main routine, the reception display processing routine is executed in response to the click of the mail icon. When the reception display processing routine is started, the reception processing routine described above and the current time (current time) are executed. (Including the date) is processed in parallel.

[0041] c. Operation of Reception Display Processing Routine Next, the operation of the reception display processing routine will be described with reference to FIGS. When a mail icon (not shown) in the startup menu screen (not shown) is selected and executed by an operation such as a click, the CPU 2a executes the reception display shown in FIG. 5 through the above-described main routine step Sb7 (see FIG. 4). The processing routine is executed, the processing proceeds to step Sc1, and the reception screen RMD is displayed.

Here, the configuration of the reception screen RMD will be described with reference to an example shown in FIG. The reception screen RMD displayed on the display unit 2d includes a group of icons for selecting functions drawn at the top of the screen, and a display column LIST for displaying a list of received mails. The icon group for selecting a function includes an opening icon KF that is clicked when a desired received mail is specified and opened, a mail creation icon ME that is clicked when a new mail is created, and a click that is input when an address is input. It comprises an address input icon AI, a delete icon DEL clicked when deleting a mail, and a cancel icon CAN for clearing the display of the reception screen RMD.

In the display column LIST, each line in the column functions as a mail list icon ML, while each line has a display area KFM, NAME, SUB, and RT. The mail list icon ML is used to specify the received mail in the corresponding line, and the display mode of the line changes (for example, the display dot is inverted) to indicate the specified state according to the click. Has become.

In the display area KFM, a mark indicating an unopened state is displayed when the open flag KAIFUF included in the received mail is "0". In the display area NAME, the sender name or sender address is displayed based on the sender address SAD included in the received mail.
In the display area SUB, the subject KM included in the received mail
Is displayed as the mail title. In the display area RT, based on the reception time TIME included in the received mail,
The mail reception time (including the date) is displayed.

Now, when such a reception screen RMD is displayed, the CPU 2a proceeds to the next step Sc2.
The value of the pointer register n is set to "1", and in the following step Sc3, the received mail MAIL (n) is read from the received mail store area JM (mail box) in accordance with the value of the pointer register n, and the received mail is read. Sender address SAD, subject KM and TIME
Are displayed in the display areas NAME, SUB and RT, respectively.

Next, in step Sc4, it is determined whether or not the opening flag KAIFUF (n) of the received mail MAIL is "0", that is, whether or not the mail is in an unopened state. Here, if it is in the unopened state, the determination result is “YES”, and the process proceeds to the next Step Sc5. In step Sc5,
The unopened mark is displayed in the display area KFM, and the process proceeds to the next step Sc6. On the other hand, if the mail has already been opened, the result of the determination in step Sc4 is “NO”, and the flow proceeds to step Sc6.

In step Sc6, the value of the pointer register n is incremented by one to increment the value so that the next received mail is displayed in a list. In step Sc7, the value is read out according to the value of the incremented pointer register n. It is determined whether or not the received mail MAIL (n) is empty. Here, if it is empty, the judgment result is “YE
S ", and in this case, there is no need to read the received mail thereafter, so the process proceeds to step Sc9 described later.

On the other hand, the read received mail MAI
If L (n) is not empty, the determination result is “NO”.
And the process proceeds to step Sc8 to determine whether all the received mails have been read. If the reading is being performed, the determination result is “NO”, and the process returns to step Sc3 to read the received mail.

On the other hand, when all the received mails have been read out, the judgment result is "YES", and step Sc9 is performed.
Processing proceeds to When the process proceeds to step Sc9, the CPU 2a
Sets the value of the counter register A for counting the number of display lines in the display column LIST to "1", and then proceeds to step S
At c10, the display area of the mail number (A) corresponding to the value of the counter register A is highlighted.

In step Sc11, a cursor corresponding to the mouse 2f is displayed on the reception screen RMD. In steps Sc12 to Sc13, the cursor display position is moved on the reception screen RMD in accordance with the pointing operation of the mouse 2f. Let it. Thereafter, step Sc14
The process proceeds to steps Sc12 to Sc12 until one of the function selection icons described above is clicked.
The display position of the cursor is moved by repeating c13.
On the other hand, if the mouse 2f has been clicked, step S is executed to process the function corresponding to the clicked icon.
The process proceeds to c15 and thereafter. In the following, the operation will be described for each type of clicked icon.

When the mail list icon ML is clicked Now, for example, in the display column LIST, to select the mail displayed on the second line, the cursor is pointed to the line and then clicked. Then, the decision result in the step Sc15 becomes "YES", the process proceeds to the next step Sc16, and the mail number (A) of the pointed cursor position is stored in the counter register A.

Next, in step Sc17, the display mode of each display area KF, NAME, SUB and RT of the mail MAIL (A) corresponding to the value of the counter register A is changed (for example, inverted display), and the following step Sc1
In step 8, the mail list ML other than the pointed mail list ML is displayed normally, and thereafter, the process returns to step Sc12 described above. As a result, only the respective display areas on the second line are highlighted, so that it is clear at a glance that the mail on that line has been selected.

When the open icon KF is clicked: In order to open the mail selected by clicking the mail list icon ML, the cursor is moved to the open icon KF.
When the user points upward and clicks, the result of the determination in step Sc15 becomes “NO”, the process proceeds to step Sc19 shown in FIG. 6, and the result of the determination becomes “YES”. Then, the CPU 2a determines in step Sc
The process proceeds to step 20, and a mail display processing routine to be described later is executed to display the contents of the mail on the screen. Then, the process returns to step Sc12 (see FIG. 5) described above.

When the mail creation icon ME is clicked: To newly create an outgoing mail, the cursor is pointed on the mail creation icon ME and clicked. Then, the respective determination results of the above-described steps Sc15 and Sc19 become “NO”, and FIG.
The process proceeds to step Sc21 shown in (1), and the result of this determination is “YES”. Then, the process proceeds to step Sc22, in which a mail creating process routine described later is executed to create an outgoing mail, and then the process returns to step Sc12.

When the Address Input Icon AI is Clicked Next, in order to register a new address, when the cursor is pointed on the address list icon AL and clicked, the results of the above-described steps Sc15, Sc19 and Sc21 are all determined. "NO", the process proceeds to step Sc23, and the determination result is "YE
S ". Then, the process proceeds to the next step Sc24, executes an address input processing routine described later to register a new address, and then returns to the above-described step Sc12.

When Delete Icon DEL is Clicked Next, in order to delete the mail selected in the received mail list displayed on the reception screen RMD (see FIG. 7), the cursor is pointed on the delete icon DEL and clicked. , The above-described steps Sc15, Sc19, Sc2
1 and Sc23 are both “NO”, the process proceeds to step Sc25, and the determination result is “YES”.

Then, the process proceeds to the next step Sc26, in which the selected mail MAIL (A) is deleted (erased) from the received mail store area JM (mail box), and in the following step Sc27, the received mail store area JM is deleted.
The other mail groups remaining in the (mailbox) are sorted in the order of the reception time TIME. After this, the CPU 2a
Returns the process to step Sc12 described above.

When the Cancel Icon CAN is Clicked Next, the cursor is pointed on the cancel icon CAN and clicked in order to close the reception screen RMD (see FIG. 7) and complete the reception display processing. , Sc19, Sc21, S
Each of the judgment results of c23 and Sc25 is “NO”
And the process proceeds to step Sc28, where the determination result is "YES". Then, the next step Sc2
9, the display is cleared and the reception screen RMD is closed, and the flow advances to step Sc30 to turn on the on flag O.
The NF is reset to zero to complete the reception display processing routine, and the processing is returned to the main routine (see FIG. 4).

[0059] d. Operation of Mail Display Processing (Mail Opening) Next, the operation of the mail display processing routine will be described with reference to FIGS. Open icon KF to open the mail selected on the receiving screen RMD (see FIG. 7)
When is clicked, the mail display processing routine shown in FIG. 8 is executed via step Sc20 described above, and the process proceeds to step Sd1. Proceeding to step Sd1, C
The PU 2a first displays a mail display screen MDD.

The mail display screen MDD has areas DE1 to DE4 for displaying a sender address (or name), a destination address (or name), a subject, and a body, respectively, as in the example shown in FIG. A cancel icon CAN that is clicked when the display is cleared and a delete icon DEL that is clicked when the displayed mail is deleted from the received mail store area JM are provided.

When the mail display screen MDD is displayed, C
The PU 2a advances the process to step Sd2, and sets the sender address SAD (or name) of the mail MAIL (A) selected by clicking the mail list icon ML in the area DE1 and the destination address (or name) in the area DE2. Are displayed, and in the subsequent step Sd3, the subject KM is displayed in the area DE3. Next, in step Sd4, the mail MAIL (A) is added to the body area DE4.
Display the text data of Thereafter, the CPU 2a advances the process to step Sd5, and sets the open flag KAIFUF (A) included in the mail MAIL (A) to "1" to indicate the open state.

Next, in step Sd6, a cursor corresponding to the mouse 2f is displayed, and in steps Sd7 and Sd8, the cursor is moved and displayed in accordance with the pointing operation of the mouse 2f. Thereafter, the process proceeds to step Sd9,
Until either the cancel icon CAN or the delete icon DEL provided on the mail display screen MDD is clicked, the above steps Sd7 to Sd8 are repeated, and the cursor is moved and displayed according to the pointing operation of the mouse 2f. Then, when the mouse 2f is clicked, the process proceeds to step Sd10 and subsequent steps to process a function corresponding to the clicked icon. Hereinafter, the operation will be described for each clicked icon.

When the Cancel Icon CAN is Clicked When the cancel icon CAN is clicked, the decision result in the step Sd10 becomes "YES", and the process advances to the next step Sd11 to clear the mail display screen MDD and complete this routine. .

When the delete icon DEL is clicked On the other hand, when the delete icon DEL is clicked, the result of the determination in step Sd10 is "NO", and the flow advances to step Sd12, where the result of the determination is "YES". The process proceeds to step Sd13. In step Sd13,
The displayed mail MAIL (A) is deleted (erased) from the received mail store area JM (mail box), and in the subsequent step Sd14, the reception time TI is set for another mail group remaining in the received mail store area JM (mail box).
Sort in ME order. Thereafter, step Sd11
, The display of the mail display screen MDD is cleared, and this routine is completed.

[0065] e. Operation of Mail Creation Processing Next, the operation of the mail creation processing routine will be described with reference to FIGS. When the mail creation icon ME is clicked on the reception screen RMD (see FIG. 7), the mail creation processing routine shown in FIG. 10 is executed via the above-described step Sc22 (see FIG. 6), and the process proceeds to step Se1. When proceeding to step Se1, C
The PU 2a displays a mail creation screen MED on the display unit 2d based on the mail creation screen data read from the mail creation area MS.

In the mail creation screen MED, an area SIE in which a sender address (including a name) is automatically set and a destination address (including a name) are individually input, as in the example shown in FIG. Address input area AIE
And a subject input area KIE for individually inputting a subject and a text input area HIE for inputting a text. The mail creation screen MED is provided with an address list icon AL that is clicked when a destination address is specified from the address list, a transmission icon TM that is clicked when sending a mail, and a cancel icon CAN.

When the mail creation screen MED is displayed, the CPU 2a advances the process to step Se2 to display a character cursor in the address input area AIE, and in the next step Se3, displays a cursor corresponding to the mouse 2f on the screen. . Next, in steps Se4 to Se5, the cursor is moved and displayed according to the pointing operation of the mouse 2f, and in step Se6, the presence or absence of a click is determined. When the button is clicked, the result of the determination is “YES”, and the process proceeds to step Se7 and subsequent steps.
Executes processing according to the clicked position on the screen.
Hereinafter, the processing will be described in different cases.

When the address input area AIE is clicked When the address input area AIE is clicked to input a destination address, the result of the determination in step Se7 is "YE
S ", the process proceeds to the next step Se8, the character cursor is moved to the address input area AIE, and a state of waiting for address input is set.

When a key input (data input) is performed in this state, the process proceeds to step Se23 via step Se22 shown in FIG. 12, and it is determined whether or not the position of the character cursor is in the address input area AIE. to decide. In this case, since the input in the address input area AIE is waiting, the determination result is “YES”, and the next step S
e24 to Se26, the key input data (characters, numbers, and symbols) is displayed in the address input area AIE, and the key input data is displayed in the mail creation area MS.
The character cursor is moved and displayed in accordance with the key input, while being stored at the destination address AAD (see FIG. 2). Thus, when the input of the destination address is completed, the CPU 2a returns the process to the above-described step Se4.

When the subject input area KIE is clicked When the subject input area KIE is clicked to input a subject, the process proceeds to step Se7 through step Se7.
The process proceeds to 9. Then, in this case, step Se9
Is "YES", and the next step Se10
Then, the character cursor is moved to the subject input area KIE, and a state of waiting for the subject input is set.

When a key input (data input) is performed in a state of waiting for a subject, steps Se22 and S22 shown in FIG.
The process advances to step Se27 via e23, and it is determined whether or not the position of the character cursor is in the subject input area KIE. In this case, since the input is waiting in the subject input area KIE, the determination result is “YES”, and the next step S
While the key input data is displayed in the subject input area KIE via e28 to Se30, the character cursor is moved according to the key input while the data is stored in the subject KM of the mail creation area MS (see FIG. 2). indicate. Thus, when the input of the subject is completed, the CPU 2a returns the process to the above-described step Se4.

When the text input area HIE is clicked When the text input area HIE is clicked to input the mail text, the process proceeds to step Se11 through steps Se7 and Se9. Then, in this case, the result of the determination in step Se11 is "YES", the process proceeds to the next step Se12, the character cursor is moved to the text input area HIE, and a state of waiting for text input is set.

When a key input (data input) is performed in a state of waiting for text input, steps Se22, S22 shown in FIG.
The process proceeds to step Se31 via e23 and Se27, and determines whether the position of the character cursor is in the text input area HIE. In this case, the text input area HI
Waiting for input in E, the judgment result is "YES",
After the next steps Se32 to Se34, the key input data is displayed in the text input area HIE, and the data is displayed in the text HB of the mail creation area MS (see FIG. 2).
While the character cursor is moved and displayed according to the key input. Thus, when the input of the subject is completed, the CPU
In step 2a, the process returns to step Se4.

When the address list icon AL is clicked Next, when the address list icon AL displayed on the mail creation screen MED is clicked, the above-described step Se is performed.
The process proceeds to step Se13 shown in FIG. 11 via 7, Se9, and Se11. In this case, the result of the determination in step Se13 is "YES", the process proceeds to the next step Se14, and a list of addresses (1) to (N) stored in the address area AD of the RAM 2c is displayed. An address list display processing routine for registering a new address in the address area AD is executed. The details of the address list display processing routine will be described later.

When the transmission icon TM is clicked Each input area AIE, K on the mail creation screen MED
When the transmission icon TM is clicked in a state where necessary items are input to the IE and the HIE, the above-described step S
The process proceeds to Step Se15 via e7, Se9, Se11, and Se13. Then, in this case, the result of the determination in step Se15 is "YES", the process proceeds to the next step Se16, and the own address (including name) is stored in the sender address SAD of the mail creation area MS. Thereafter, after steps Se17 and Se18, the process waits until the created mail has been transmitted to the server 1, and upon completion of the transmission, proceeds to step Se19 to clear the display of the mail creation screen MED, and then completes this routine. .

When the Cancel Icon CAN is Clicked Now, in order to cancel the mail creation, the cancel icon C is clicked.
When AN is clicked, the above steps Se7, S
The process proceeds to step Se20 via e9, Se11, Se13, and Se15. Then, in this case, the result of the determination in step Se20 becomes “YES”, the process proceeds to the next step Se21, and after clearing the mail buffer in the mail creation area MS, the process proceeds to step Se19 to display the mail creation screen MED. Clear to complete this routine.

F. Operation of Address List Display Processing Next, the operation of the address list display processing routine will be described with reference to FIGS. Mail creation screen M
Address list icon A in the ED (see FIG. 13)
When L is clicked, the address list display processing routine shown in FIG. 14 is executed via the above-described step Se14 (see FIG. 11), and the process proceeds to step Sf1. In step Sf1, the CPU 2a first displays an address list display screen ALD on the display unit 2d.

The address list display screen ALD is shown in FIG.
, A display column ALIST for scrolling the addresses (1) to (N) registered in the address area AD of the RAM 2c, a new input icon NI and a delete icon DEL arranged at the top of the screen. , A confirmation icon OK and a cancel icon CAN.

In the display column ALIST, each line in the column functions as an address list icon AL, while each line is provided with a display area NAME and ADDRESS. The address list icon AL is used when selecting and specifying the address of the corresponding row, and the display mode of the row changes (for example, inversion display for inverting the display dot) according to the click. In the display areas NAME and ADDRESS, a personal name or a handle name corresponding to each address (1) to (N),
Each email address is displayed.

When such an address list display screen ALD is displayed, the CPU 2a advances the process to step Sf2, sets an initial value "1" in a pointer register m, and in a subsequent step Sf3, sets the pointer register m From address area AD according to the value of (m)
Is read, and NAME and ADDRESS forming the address (m) are displayed in the display area NAME and ADDRESS in the first row of the display column ALIST.

Next, at step Sf4, the value of the pointer register m is incremented by one to increment the value. At step Sf5, it is determined whether or not the incremented value of the pointer register m is larger than the maximum number. It is determined whether or not the reading for the address (m) has been completed. If the reading has not been completed, the determination result is “NO”, and the process returns to the step Sf3 to proceed with the reading. When the reading has been completed, the determination result is “YES”. And the next step Sf
The process proceeds to 6.

Then, in step Sf6, the display field ALI is displayed.
"1" is set to the counter register A for counting the display row in ST, and in the following step Sf7, the drawing bits of the display area NAME and ADDRESS of the first row in the display column ALIST are inverted in accordance with the value of the counter register A. Is displayed in reverse. Thereafter, the process proceeds to step Sf8, and a cursor corresponding to the mouse 2f is displayed on the address list display screen ALD.

Next, in steps Sf9 to Sf10,
The cursor is moved and displayed according to the pointing operation of the mouse 2f, and it is determined in step Sf11 whether there is a click. When the button is clicked, the result of the determination is “YES”, and step Sf shown in FIG.
The process proceeds to step 12 and thereafter, and a process corresponding to the clicked position on the screen is executed. Hereinafter, the processing will be described in different cases.

When the Address List Icon AL is Clicked When any one of the address list icons AL corresponding to each line in the display column ALIST is pointed and clicked, the result of the determination in step Sf12 becomes "YES", and the next step Sf13 is executed. The process proceeds, and the address number of the clicked row is set in the counter register A. In step Sf14, the display areas NAME and ADDR corresponding to the value of the counter register A are set.
ESS is highlighted.

Subsequently, in step Sf15, the address list AL other than the pointed address list AL is normally displayed, and thereafter, the process returns to step Sf9 described above. As a result, the display areas NAME and ADDRESS of the clicked line are highlighted, indicating that the name and address displayed on the line have been selected.

When the New Input Icon NI is Clicked When the new input icon NI is clicked in order to newly register an address, the process proceeds to step Sf16 via the above-mentioned step Sf12, and the judgment result is "YES". The process proceeds to step Sf17. Step S
When proceeding to f17, the CPU 2a executes an address input processing routine to be described later to register a new address in the address area AD, and thereafter returns to the above-described step Sf1 to display a list including the newly registered address. .

When the Cancel Icon CAN is Clicked When the cancel icon CAN is clicked, the process proceeds to step Sf18 via the above-described step Sf16, where the determination result is “YES” and the next step Sf
The process proceeds to 19, where the address list display screen ALD is cleared and the present routine is completed.

When the delete icon DEL is clicked When the delete icon DEL is clicked, the process proceeds to the step Sf20 via the above-mentioned step Sf18, and the judgment result is "YES", and the next step Sf2
The process proceeds to 1. In step Sf21, the currently selected address, that is, the address corresponding to the address number (A) highlighted in step Sf14 is deleted from the address area AD, and the subsequent step Sf21 is executed.
At 22, the remaining addresses after the deletion are sorted and rearranged. Thereafter, the process returns to the above-described step Sf1, and the rearranged addresses after deletion are displayed again in a list.

When the OK icon is clicked Now, in the display column ALIST, the above-described step S
To confirm the address number (A) highlighted in f14 as the destination address of the created e-mail, click the OK icon. When the confirmation icon OK is clicked, the process proceeds to step Sf23 via step Sf20.
The determination result here is “YES”, and the process proceeds to the next step Sf24. In step Sf24, the data of the address number (A) is set in the mail buffer of the mail creation area MS. Thus, the address data of the highlighted address number (A) is set and displayed in the address input area AIE of the above-described mail creation screen MED (see FIG. 13). Thereafter, the process proceeds to step Sf25, where the display of the address list display screen ALD is cleared and the present routine is completed.

G. Operation of Address Input Processing Next, the operation of the address input processing routine will be described with reference to FIGS. On the address list display screen ALD (see FIG. 16), the new input icon NI
Is clicked, the aforementioned step Sf17 (FIG. 1)
5), the address input processing routine shown in FIG. 17 is executed, and the process proceeds to step Sg1. In step Sg1, the CPU 2a first sets an initial value "1" in the pointer register m, and in subsequent step Sg2, determines whether the address (m) corresponding to the value of the pointer register m is not empty.

(A) When there is no vacancy in the address area AD If the address (m) is not vacant, the judgment result of the above step Sg2 becomes "YES", the process proceeds to the next step Sg3, and the value of the pointer register m is changed. Increment by one increment. Then, in step Sg4, it is determined whether or not the incremented value of the pointer register m is larger than the maximum number, that is, whether or not all the addresses (1) to (m) stored in the address area AD are free. It is determined whether or not the processing has been completed.

When the search for the availability of all the addresses (1) to (m) is completed, that is, when there is no availability in the address area AD, the determination result is “YE”.
S ", the process proceeds to the next step Sg5, and a warning is displayed to the user for a fixed time indicating that there is no free space in the address area AD and a new address cannot be registered, and then this routine is completed.

(B) When there is a vacancy in the address area AD On the other hand, when there is a vacancy in the address area AD, in the process of searching for vacancies in the addresses (1) to (m), the judgment in the step Sg2 is made. The result is "NO",
Proceeding to step Sg6, the address input screen AID is displayed on the display unit 2d. What is the address input screen AID?
As shown in FIG. 19, data N forming an address
Input areas Name, address for inputting AME, data ADDRESS, and data TYPE, respectively.
OK icon to confirm input other than s and type
And cancel icon CAN to cancel input
Is provided.

When such an address input screen AID is displayed, the CPU 2a advances the process to the next step Sg7 to display a cursor corresponding to the mouse 2f on the address input screen AID. Set in the input area Name. Next, in Steps Sg9 to Sg10, the cursor is moved and displayed in accordance with the pointing operation of the mouse 2f, and Step Sg1 is performed.
At 1, it is determined whether or not there is a click. When the button is clicked, the result of the determination is “YES”, the process proceeds to step Sg12 and thereafter, and a process corresponding to the clicked position on the screen is performed. Hereinafter, the processing will be described in different cases.

When Clicking on Input Area Name When the input area Name on the address input screen AID is clicked in order to input the "name" at the new address, the CPU 2a proceeds to step Sg16 shown in FIG. 18 via steps Sg12 and Sg14. The result of this determination is “YES”, and the flow advances to step Sg17 to move the character cursor to the input area Name.

When a key input (data input) is performed in this state, the process proceeds to step Sg22 shown in FIG. 18 via step Sg11 shown in FIG. 17, and the determination result is "YES", and the process returns to step Sg23. Proceed with the process. In step Sg23, it is determined whether or not the character cursor is in the input area Name. In this case, since the key input is made in the area, the determination result is "YES", and the flow proceeds to step Sg24. In step Sg24, the keyed data is displayed in the input area Name, and in the subsequent step Sg25, the keyed data is stored in the data NAME at the address (m). Then, the process proceeds to step Sg26, the character cursor is moved and displayed in the input area Name in accordance with the key input, and then the process returns to step Sg9 (see FIG. 17).

When clicked on input area address In the same manner as described above, when input area address is clicked in order to input a new mail address "mail address", CPU 2a proceeds to steps Sg12, Sg14 and Sg14.
The process advances to step Sg18 shown in FIG. 19 via g16, and the determination here is "YES". The process advances to step Sg19 to move the character cursor to the input area addre.
Move to ss.

When a key input (data input) is made in this state, the result of the determination in step Sg22 is "YE
S ”, and goes through step Sg23 to step Sg27.
Processing proceeds to In step Sg27, it is determined whether or not the character cursor is in the input area Address. In this case, since the key input is performed in the area, the determination result is "YES", and the flow advances to next step Sg28. In step Sg28, the key input data is displayed in the input area address, and in the subsequent step Sg29, the key input data is displayed as the data A of the address (m).
Store in DDRESS. Thereafter, step Sg26
Then, the character cursor is moved and displayed, and the process returns to step Sg9.

When clicked on input area type When input area type is clicked to input "type (mail attribute)" of a new address, CPU 2a
Are the steps Sg12, Sg14, Sg16 and Sg1
The process proceeds to a step Sg20 shown in FIG. 18 through FIG.
Proceed to g21, and move the character cursor to the input area type.

When a key input (data input) is made in this state, the result of the determination in step Sg22 is “YE”.
S ", and the process proceeds to step Sg30 via steps Sg23 and Sg27. In step Sg30, it is determined whether or not the character cursor is in the input area type. In this case, since the key input is in the area, the determination result is "YES", and the flow advances to the next step Sg31.
In step Sg31, the keyed-in data is displayed in the input area type. In the subsequent step Sg32, the keyed-in data is displayed as the data TY of the address (m).
Store in PE. Thereafter, the character cursor is moved and displayed through step Sg26, and then the above-described step Sg26 is performed.
The process is returned to 9.

When the Confirmation Icon OK is Clicked In the address input screen AID, when the registration of the new address is completed and the confirmation icon OK is clicked, the result of the determination in step Sg12 shown in FIG. Proceeding to Sg13, the address input screen AID is displayed and cleared, this routine is completed, and the process returns to the address list display processing routine (see FIG. 14).

When Cancel Icon CAN is Clicked On the other hand, when interrupting new address registration, the cancel icon CAN is clicked. In this case, the result of the determination in step Sg14 shown in FIG. 17 is "YES", and the next step Sg15 Proceed to. In step Sg15, after clearing each content of the data NAME, data ADDRESS and data TYPE of the address (m), the display of the address input screen AID is cleared through step Sg13, and after completing this routine, the address list is displayed. Return processing to the processing routine.

As described above, according to this embodiment,
Character code conversion table group C according to the country identification code added to the end of the sender address SAD of the received mail
Since any one of T1 to CTn is selected and the character code system of the received mail is converted into the character set (display font) of the device itself based on the selected character code conversion table CT, for example, a character using "ASCII-UK" When a mail in the code system is sent from the UK, the character code conversion table group CT2 is selected based on the country identification symbol “.uk” attached to the end of the sender address SAD of the mail. Then, based on this table CT2, the character code system of the received mail is automatically converted into a character set corresponding to the shift JIS, and the mail can be displayed without being garbled as shown in FIG. . That is, unlike the related art, it is not necessary to select a character code by a manual operation, and it is possible to automatically perform character code conversion and prevent garbled characters caused by mismatch of character codes.

In this embodiment, the character code system is converted to the character set (display font) of the apparatus itself according to the mail address to prevent garbled characters. In the case of a mail from a country, there are characters that do not exist in the character set (display font) of the device itself, and in that case, the characters are garbled due to a difference in the display font. Therefore, in such a case, if a display font corresponding to a plurality of languages is prepared in advance, and the mail display is switched to the character code system and the corresponding display font according to the mail address, the font is displayed. The garbled characters due to the difference can be avoided.

In this embodiment, the character code system is identified according to the country identification symbol at the end of the mail address. However, the present invention is not limited to this. For example, data TYPE included in the received mail address data may be used. For example, a method of identifying the character code system according to various attributes given to the mail, such as identifying the character code system of the mail according to the above method, may be considered. In addition, in the above-described embodiment, the server 1
In the embodiment, the gist of the present invention is applied to the PDA 2 that accesses the side, but the gist of the present invention may be applied to the server 1 instead. Furthermore, in the present embodiment, the case where the present invention is applied to the wired communication is described as an example. However, the present invention is not limited to this, and it goes without saying that the present invention is also applicable to a portable terminal that performs wireless communication.

[0106]

According to the electronic mail device of the first aspect, the character code system of the mail is identified according to the attribute of the mail received by the mail receiving means, and the character code system is corresponded to various character code systems. A code conversion means corresponding to the identified character code system is selected from the plurality of code conversion means provided, and a code is set by the selected code conversion means so that the character code system of the mail corresponds to a character set built into the apparatus. Since the conversion is performed, it is possible to prevent garbled characters due to a mismatch between the character code systems on both the mail transmitting and receiving sides. According to the second aspect of the present invention, the character code system of the received mail is identified according to the country identification code added to the end of the address of the received mail. Therefore, the character code system to be converted is automatically selected. obtain. According to the third aspect of the invention, since the character code system of the received mail is identified according to the type information included in the address data of the received mail, the character code system to be code-converted can be automatically selected. The medium on which the electronic mail program according to claim 4 is recorded identifies the character code system of the received mail based on a country identification code added to the end of the address of the received mail, and corresponds to various character code systems. Select the character code conversion table corresponding to the identified character code system from among the plurality of character code conversion tables provided, and refer to the selected character code conversion table to change the character code system of the mail to the built-in character Since the code is converted so as to correspond to the set, it is possible to prevent garbled characters due to a mismatch between the character code systems on both the mail transmitting and receiving sides. In the electronic mail device according to the fifth aspect, display fonts corresponding to a plurality of language zones are prepared in advance, and a character code system and a corresponding display font are automatically set according to the mail address of the received mail. , And displaying the mail, it is possible to prevent garbled characters due to mismatch of character code systems and also to prevent garbled characters due to differences in fonts.
The medium storing the program for displaying an electronic mail according to claim 6 prepares display fonts corresponding to a plurality of language zones in advance, and sets a character code system according to the mail address of the received mail. Since the display font is automatically switched to the corresponding display font and displayed by e-mail, it is possible to prevent garbled characters due to mismatching character code systems and also prevent garbled characters due to font differences.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a mail system to which an electronic mail device according to an embodiment of the present invention is applied.

FIG. 2 is a memory map for explaining a main memory configuration of a RAM 2c configuring the PDA 2.

FIG. 3 is a flowchart illustrating an operation of a reception processing routine.

FIG. 4 is a flowchart showing an operation of a main routine.

FIG. 5 is a flowchart showing an operation of a reception display processing routine.

FIG. 6 is a flowchart showing an operation of a reception display processing routine.

FIG. 7 is a diagram illustrating an example of a reception display screen RMD.

FIG. 8 is a flowchart showing an operation of a mail display processing routine.

FIG. 9 is a diagram showing an example of a mail display screen MDD.

FIG. 10 is a flowchart illustrating an operation of a mail creation processing routine.

FIG. 11 is a flowchart showing an operation of a mail creation processing routine.

FIG. 12 is a flowchart showing an operation of a mail creation processing routine.

FIG. 13 is a diagram showing an example of a mail creation screen MED.

FIG. 14 is a flowchart showing an operation of an address list display processing routine.

FIG. 15 is a flowchart showing an operation of an address list display processing routine.

FIG. 16 is a diagram showing an example of an address list display screen ALD.

FIG. 17 is a flowchart showing an operation of an address input processing routine.

FIG. 18 is a flowchart showing an operation of an address input processing routine.

FIG. 19 is a diagram illustrating an example of an address input screen AID.

FIG. 20 is a diagram illustrating an example of a result of code conversion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Server computer 2 Personal digital assistant (PDA) 2a CPU 2b ROM 2c RAM 2d Display part 2e Keyboard 2f Mouse 2g Communication control part

Claims (6)

[Claims] 1. A mail receiving means for receiving a mail, a code identifying means for identifying a character code system of the mail according to an attribute of the mail received by the mail receiving means, and various character code systems. Code conversion means for selecting a character code system identified by the code identification means from among them, and converting the code so that the selected character code system corresponds to a character set built into the apparatus. E-mail device 2. The electronic mail device according to claim 1, wherein the code identification unit identifies a character code system of the received mail according to a country identification code added to the end of the address of the received mail. 3. The electronic mail apparatus according to claim 1, wherein the code identification unit identifies a character code system of the received mail according to type information included in address data of the received mail. 4. A medium in which a program for opening an electronic mail is recorded, wherein a character code system of the electronic mail is identified based on a country identification code added to the end of the address of the received electronic mail, and various characters are provided. Select the character code conversion table corresponding to the identified character code system from among the multiple character code conversion tables provided corresponding to the code system, and refer to the selected character code conversion table to see the character code of the mail. A medium on which an electronic mail program is recorded, wherein code conversion is performed so that the system corresponds to a character set built into the apparatus. 5. A display font corresponding to a plurality of languages is prepared in advance, and a mail code is automatically switched to a character code system and a corresponding display font in accordance with the mail address of the received mail, and the mail is displayed. An electronic mail device characterized by the above-mentioned. 6. A medium in which a program for displaying an electronic mail is recorded, a display font corresponding to a plurality of languages is prepared in advance, and a character code system is set according to the mail address of the received mail. And a display font corresponding to the electronic mail program.