JP2002123351A - Portable information terminal device and window generating method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of properly displaying a reply window on a portable information terminal device having a small display area like a portable telephone set and a PDA(Personal Digital Assistant). SOLUTION: When an event for informing a user of a message from a system side has occurreds, the position of a cursor in a display area is obtained (step S101) to generate the reply window for message notification for the largest area among four areas formed by dividing the display area into four on the basis of the position of the cursor as an intersection. Then largest area information is generated (step S102) as information showing the results of area comparisons in the two longitudinal and lateral directions of the display area. Further, which vertex of the reply window is regarded as the base point of the generation of the reply window is determined (step S103) by referring to the largest area information. Then, the reply window is generated (step S104) so that it's vertex decided as the generation base point matches with the cursor position and the message to the user is displayed in the reply window.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a portable telephone and a PD.
Related to window control in A (Personal Data Assistant). More specifically, the present invention relates to a method for appropriately displaying a message window on a small screen (display area) of a mobile phone or a PDA, and a device embodying the method.

[0002]

2. Description of the Related Art Some mobile phones and PDAs operate on a general-purpose OS by a software maker like personal computers and the like. However, due to the limitation of hardware resources, the hardware maker designs it independently. Some operate on a modified OS.

[0003] However, in most cases, it is common that a graphical user interface (GUI) using a message window, an icon, or the like is adopted.

[0004] Specifically, the GUIs adopted are designed to have commonality with the operation of an OS for a personal computer.

[0005]

In the case of an OS for a personal computer, when a user performs some operation and the system notifies the user of a message in response to the operation, the message notification is performed. A pop-up window (hereinafter referred to as a reply window) is generated and a message is displayed in the window.

[0006] On the other hand, there is a case where such a message notification is required even in a portable telephone or a PDA. For example,
This is the case where there is an error in the user's operation method or the case where an e-mail arrives.

However, in such a case, if the operability of the OS for a personal computer is diverted to a mobile phone or PDA as it is, a problem may occur.

More specifically, since the screen is originally large to some extent in a personal computer or the like, there is no problem even if the above-described window is generated. ) Is small, the entire message to be notified may not be displayed depending on the position where the window is to be displayed.

Accordingly, an object of the present invention is to provide a method for appropriately displaying a reply window in a portable information terminal device having a small display area such as a portable telephone or a PDA.

Another object of the present invention is to provide a portable information terminal device having a reply window display function by such a method.

[0011]

In order to solve the above-mentioned problems, the present invention provides a display unit for notifying a user of an operation state, an input unit for receiving an instruction from a user, a storage unit, the display unit, A portable information terminal device connected to the input unit and the storage unit, the control unit controlling a function of each unit; and a display of a message in response to an instruction from a user is newly generated at a cursor position for displaying the message. This is done within the reply window, which is the window that was created. This reply window is displayed, for example, in the area having the largest area among four areas which are two straight lines intersecting at the head position of the cursor and divided by two straight lines parallel to the sides of the display unit.

More specifically, according to the present invention, a display unit having a display area of a predetermined shape, an input unit having an operation means for operating a position of a cursor in the display area, a processor, and a processor And a memory storing software instructions for performing system control including the control of the display unit and the input unit, for a user who uses the portable information terminal device from the system side. When an event that requires a message notification occurs, the message notification reply window is displayed for the maximum area of the four areas when the predetermined shape of the display area is divided into four parts by using the cursor position as an intersection. A window generation method for generating, comprising: display area information that is information on the predetermined shape of the display area; A first step of preliminarily retaining base point information indicating which vertex of the reply window is to be a base point for generating the reply window when the maximum area is determined; and displaying the cursor. A second step of acquiring a position in an area to generate cursor position information; a third step of generating maximum area information indicating the maximum area from the display area information and the cursor position information; A fourth step of determining which vertex of the reply window is to be the base point based on the maximum area information with reference to the information, and the position of the cursor when the event occurs and the position of the cursor. A second step of generating the reply window by matching the vertices of the reply window as a base point Window generation method characterized by comprising of the steps is obtained.

According to the present invention, in the window generation method, the predetermined shape of the display area is a quadrangular shape, and the four divisions are parallel to each of two opposite sides of the quadrangular shape. This is performed by dividing the square shape by two straight lines that intersect at the position of the cursor, and the display area information uses one of the four vertices of the square shape as a reference point. In a two-dimensional coordinate system, it is information indicating coordinates of a diagonal vertex,
The cursor position information is information indicating coordinates of a position of the cursor in the two-dimensional coordinate system, and a window generation method is obtained.

Further, according to the present invention, in the window generation method, the two-dimensional coordinate system has first and second coordinate axes, and the display area information includes the vertexes of the diagonal. A first value indicating a coordinate value on the first coordinate axis;
A coordinate maximum value and a second coordinate maximum value indicating a coordinate value of the diagonal vertex on the second coordinate axis, wherein the cursor position information is a position of the cursor on the first coordinate axis. A first cursor coordinate value indicating a coordinate value, and a second cursor coordinate value indicating a coordinate value of the cursor position on the second coordinate axis, wherein the third step is performed with respect to the first coordinate axis. Comparing a value obtained by subtracting the first cursor coordinate value from the first coordinate value with the first cursor coordinate value, and comparing the second cursor coordinate from the second coordinate value with respect to the second coordinate axis. A window generation method is provided, wherein a value obtained by subtracting a value from the second cursor coordinate value is compared, and the maximum area is determined based on a combination of comparison results for each coordinate axis.

The display function of the reply window based on these window generation methods may be realized as hardware and provided in the portable information terminal device,
Alternatively, it may be realized by cooperation between a processor and software.

Further, in order to realize such a window generating method, a CPU provided in a portable information terminal device is provided.
Alternatively, the present invention may be embodied in the form of a recording medium storing instructions and the like to be executed by a processor.

Further, in order to cause a processor or CPU already provided in the portable information terminal device to execute the above-described window generation method, a program for generating the window is stored in a memory already provided in the portable information terminal device. May be embodied in the form of a recording medium on which a program for updating the system is recorded.

Examples of the medium include a floppy (registered trademark) disk, hard disk, magnetic tape, magneto-optical disk, CD (including CD-ROM and Video-CD), DVD (DVD-Video, DVD-ROM,
DVD-RAM), ROM cartridges, RAM memory cartridges with battery backup, flash memory cartridges, nonvolatile RAM cartridges, and the like.

The communication medium also includes a communication medium such as a wired communication medium such as a telephone line and a wireless communication medium such as a microwave line. The Internet is also included in the communication medium mentioned here.

A medium is a medium on which information (mainly digital data and programs) is recorded by some physical means, and which allows a processing device such as a computer or a dedicated processor to perform a predetermined function. You can do it.
In short, any method may be used as long as the program is downloaded to the computer by some means and a predetermined function is executed.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A portable information terminal device and a method for generating a reply window in the portable information terminal device according to an embodiment of the present invention will be described below in detail with reference to the drawings.

A portable information terminal device according to an embodiment of the present invention is a PDA having an external appearance as shown in FIG. 1 and having a configuration as shown in FIG.

More specifically, the PDA according to the present embodiment is:
As shown in FIG. 2, the CPU (or processor) 1
0, ROM 20, RAM 30, input unit 40, display unit 50
And a communication unit 60 connected by a bus 70.

The ROM 20 stores software instructions for causing the CPU 10 to perform system control including control of the input unit 40, the display unit 50, and the communication unit 60, and data (control data) required for the control. Is to be recorded. In particular, the ROM 2 according to the present embodiment
Reference numeral 0 denotes an EEPROM, which can update the contents of the system control by electrically erasing and rewriting the program stored in the ROM 20 even after the product is shipped. However, the ROM 20 may be a flash memory, or may be an EPROM if no consideration is given to electrical erasure. Further, in a case where the contents of the system control are not updated later, the ROM 20 may be configured inexpensively with a mask ROM or the like.

The RAM 30 is used to temporarily store data during system control performed by the CPU 10. This RAM 30 is, for example, D
It is composed of a RAM, an SRAM and the like. RAM 30 is
At the time of system control by the PU 10, the PU 10 is appropriately divided into a plurality of memory areas for use. For example, the program stored in the ROM 20 may be temporarily loaded on the RAM 30 and then executed.
A system area is secured on the AM 30 and the program is loaded therein.

The input unit 40 includes, for example, parts that contribute to the PDA operation by the user, such as the cursor operation button 41 shown in FIG.
An interface for transmitting a signal corresponding to a user operation to the CPU 10. In particular, the cursor operation button 41 shown in FIG. 1 is for operating the movement of the cursor displayed on the display area 51.

In this specification, the term "cursor" is used as a general term including a mouse cursor and other pointers in addition to a so-called cursor.
In particular, a so-called general cursor may be of a horizontal bar type or a vertical bar type such as an I-shape, and there is no shape limitation. In addition, in the case of "cursor position", it means the position where the "cursor" exists. For example, in the case of a general horizontal bar cursor, the position of the left end of the horizontal bar is the In this case, the position of the lower end of the vertical bar is a position indicated by the mouse cursor in the case of a mouse cursor.

The display unit 50 comprises a display unit having a display area 51 and a display control unit for controlling the display unit. The display unit 50 provides visual information to the user in accordance with a command from the CPU 10. The display unit is, for example, a liquid crystal display, an organic EL, or an inorganic E.
It consists of an L display.

The communication unit 60 is a circuit unit for performing communication with the outside. For example, a modem for wired communication performed through a telephone line, a network interface for LAN connection, an IrDA interface, or a wireless communication. It has a circuit and the like.

In the portable information terminal having such a configuration, the reply window is generated by the ROM 20.
When the CPU 10 executes the software instruction stored in the CPU, the software instruction is performed as schematically shown in FIG.
A message in response to an instruction from the user is displayed in the reply window. That is, when an event such as a malfunction of the user is detected on the system side, when notifying the user of a message from the system side, first, the position of the cursor is detected, and the intersection of the cursor position is used as an intersection. The display area 51 is divided into four areas (A, B, C, and C) by two straight lines each of which is parallel to two orthogonal sides of the display area 51.
In the case of dividing into D), a reply window is generated in the area (B) having the largest area, and a message is displayed there.

The display area 5 shown in FIG. 1 and FIG.
Although 1 has a rectangular shape, depending on the portable information terminal device, the vicinity of each vertex of the display area 51a may be rounded as shown in FIG. In that case, for example, in the periphery of the display area 51a, four points which extend and intersect with the linear portions are virtual vertices, and are two straight lines parallel to the line connecting the vertices. If it is assumed that the display area 51a is divided into four by two straight lines intersecting the cursor position as an intersection, the display area 51a can be handled in the same manner as the display area 51 shown in FIGS.

Hereinafter, referring to FIG. 5 to FIG.
An example of window generation will be described in detail. In addition,
In the present embodiment, it is assumed that the size of the reply window is within １ ／ of the display area 51.

When an event requiring a message notification from the system side occurs to the user, a reply window generating routine shown in FIG. 5 is started. This reply window generation routine is for generating a reply window for message notification with respect to the largest area among the four areas when the display area 51 is divided into four parts with the cursor position as an intersection. Specifically, this is performed by the CPU 10 executing the software command stored in the ROM 20 and using the control data stored in the ROM 20 in advance.

In the reply window generating routine, first, the position of the cursor in the display area 51 is obtained and stored as cursor position information in the RAM 30 (step S101). More specifically, as shown in FIG. 6, the coordinate value (x, y) of the cursor position in the case of an XY two-dimensional coordinate system using the lower left vertex of the display area 51 as a reference point is stored in the RAM 30. And store it as cursor position information.

Since the lower left vertex of the display area 51 is a reference point, it has a coordinate value (0, 0), and the upper right vertex corresponding to the coordinate value has a coordinate value (X _max , Y _max ). . If the coordinate values (X _max , Y _max ) of the upper right vertex are known, it can be seen from FIG. 6 that the lower right vertex has the coordinate value (X _max , 0) and the upper left vertex has the coordinate value (0, Y _max ). it is obvious.
That is, when the shape of the display area 51 is a quadrangle, the shape and size of the display area can be known by using only one vertex as a reference point and knowing only the coordinate value of the diagonal vertex of the reference point. . Therefore, in the present embodiment, only the values of X _max and Y _max are stored in the ROM 20 in advance as the display area information indicating the shape and size of the display area 51.

Here, referring again to FIG. 6, if the values of X _max and Y _max and the coordinate value (x, y) of the cursor position are known, the area of each of the areas A, B, C, and D becomes xx × y, (X
_max- x) x y, xx (Y _max- y), (X _max- x) x
It is clear that (Y _max -y). In particular, since the areas A and B and the areas C and D have the same height, which of x and (X _max -x) is larger (that is, x and X _max / 2). Is larger, you can also know the size of those areas. Similarly, area A and area C, and area B and area D
Are the same in width (bottom), so that y and (Y _max
−y) (ie, y and Y _max /
2 is larger), the size of those areas can be known. If the two comparison results (area size) of the area comparison in the width direction and the area comparison in the height direction are known, the largest area among the four areas A, B, C, and D can be obtained.

Therefore, in the present embodiment, after acquiring the coordinate value of the cursor position, 1-bit information, a total of 2 bits, is calculated as information indicating the comparison result of the area in the two directions, and the maximum area information is calculated. As the RAM 30
(Step S102). More specifically, x
Is compared with X _max -x and 0 is set if x is larger, otherwise 1 is set to the first bit, and if y is larger than y _max -y, 0 is set if y is larger. Otherwise, 1 is set to the second bit.

It is possible to know which area is the largest area based on the above-described principle by referring to the maximum area information consisting of the first and second bits, that is, a total of 2 bits. The relationship between the values of the first and second bits and the maximum area is summarized in FIG.

Next, it is determined which vertex of the reply window is to be matched with the cursor position, that is, which vertex of the reply window is to be a base point for generating the reply window (step S10).
3). In determining the generation base point of the reply window, base point information stored in the ROM 20 in advance is used.

As shown in FIG. 8, the base point information is obtained by storing the maximum area information and the base point for generating the reply window in association with each other. For example, when both the first bit and the second bit in the maximum area information are “0”, the maximum area is the area A,
In this case, the upper right vertex of the reply window is the generation base point. When the first and second bits in the maximum area information are “0” and “1”, respectively, the maximum area is area C. In this case, the lower right vertex of the reply window is the generation base point. Becomes

After the origin of the reply window is determined in this manner, the reply window is generated by making the vertex of the reply window, which is the origin of the reply window, coincide with the cursor position. (Step S104), a message for the user is displayed in the reply window.

If the reply window is generated in this manner, the entire reply window always fits in the display area, so that a state in which the message to the user is interrupted is avoided. Can be.

In the above-described embodiments, various specific examples have been described to facilitate understanding of the present invention. However, the concept of the present invention is not limited thereto.

For example, in the above embodiment,
Although the PDA has been described as an example of the portable information terminal device, the concept of the present invention can be applied to other portable information terminal devices such as a cellular phone in which the size of the display area is limited unlike a personal computer or the like. Applicable. When the concept of the present invention is applied to a mobile phone, for example, the communication unit 60 operates as a wireless unit for performing wireless communication with a base station of a mobile communication network.

In the above-described embodiment, RO
A removable memory card or the like may be provided instead of the M20. In this case, the above-described control data and software instructions may be stored in the memory card or the like.

In the above-described embodiment, the storage destinations are divided into the ROM 20 and the RAM 30 according to the properties of the stored data and the program.
These two memories may be integrated.

In order for a portable information terminal device having the same hardware configuration as the portable information terminal device in the above-described embodiment to have the function of generating a reply window according to the above-described embodiment, For example,
The control data and software instructions may be added to the ROM 20 using a recording medium storing a system update program for writing the above-described control data and software instructions into the ROM 20.

The present invention is not limited to the embodiments described above, and various modifications can be made within the scope of the invention described in the appended claims, which are also included in the scope of the present invention. Needless to say, this is done.

In this specification, means does not necessarily mean physical means, but also includes a case where the function of each means is realized by software.
Further, the function of one unit may be realized by two or more physical units, or the function of two or more units may be realized by one physical unit.

[0050]

As described above, according to the present invention,
In the portable information terminal device, when an event occurs that requires the system to notify the user of a message, a reply window is generated at the cursor position at that time, and the message is displayed in the window. Since the message is displayed, the message can be prevented from being interrupted as long as the reply window is within the display area of the portable information terminal device.

According to the present invention, the display area is divided by two straight lines that intersect the cursor position when the above-described event occurs and that is parallel to the side of the display area. Since the reply window is displayed in the area having the largest area among the two areas, the reply window can be easily contained in the display area. In particular, if the size of the reply window is within 1/4 of the display area, the reply window can be reliably contained in the display area, so that the message can be reliably transmitted to the user. .

[Brief description of the drawings]

FIG. 1 is a diagram showing an appearance of a PDA according to an embodiment of the present invention.

FIG. 2 is a system configuration diagram of the PDA shown in FIG. 1;

FIG. 3 is a diagram showing a concept of generating a reply window in the embodiment of the present invention.

FIG. 4 is a diagram for describing handling of a display area that is not a square.

FIG. 5 is a diagram showing a procedure for generating a reply window according to the embodiment of the present invention.

FIG. 6 is a diagram illustrating a relationship between four areas when a display area is assumed to be a two-dimensional coordinate system.

FIG. 7 is a diagram illustrating a relationship between maximum area information and a maximum area.

FIG. 8 is a diagram showing base point information stored by associating maximum area information with a generation base point of a reply window.

[Explanation of symbols]

 Reference Signs List 10 CPU 20 ROM 30 RAM 40 Input unit 41 Cursor operation button 50 Display unit 51 Display area 60 Communication unit

 ────────────────────────────────────────────────── ─── Continued on the front page F-term (reference)

Claims (14)

[Claims] A communication unit for setting a communication channel by a wireless line with a base station; a display unit for notifying an operation state to a user; an input unit for receiving an instruction from the user; a storage unit; A communication unit, a display unit, an input unit, and a control unit that is connected to the storage unit and controls a function of each unit.In a portable information terminal device, a display of a message in response to an instruction from a user is used for displaying the message. A portable information terminal device, wherein the process is performed in a reply window that is a window newly generated at a cursor position. 2. The portable information terminal device according to claim 1, wherein the reply window is divided by two straight lines that intersect at a head position of a cursor and are parallel to a side of the display unit. A portable information terminal device for displaying in an area having a large area. A display unit having a display area of a predetermined shape;
An input unit having operation means for operating the position of a cursor in the display area, a processor, software instructions for causing the processor to perform system control including control of the display unit and the input unit, and the system control And a second memory used for temporary data storage in system control by the processor, using the portable information terminal device. When an event that requires a message notification from the system side occurs for the user who performs the operation, when the predetermined shape of the display area is divided into four by using the cursor position as an intersection,
In order to generate a reply window for message notification with respect to a maximum area of the two areas, the control data includes display area information that is information on the predetermined shape of the display area, and the maximum area is determined. In this case, the software instruction includes: a vertex information indicating which vertex of the reply window is to be a base point for generating the reply window; andthe software instruction acquires a position of the cursor in the display area. A first step of storing the cursor area information in the second memory as the cursor position information, and referring to the display area information to determine the maximum area based on the cursor position information stored in the second memory. A second step of determining and storing the maximum area information as the maximum area information in the second memory; A third step of determining which vertex of the reply window is the base point based on the maximum area information stored in the second memory; and A fourth step of generating the reply window by matching the position with the vertex of the reply window as the base point. 4. The portable information terminal device according to claim 3, wherein the predetermined shape of the display area is a quadrangular shape, and the quadrant is parallel to each of two opposite sides of the quadrangular shape. This is performed by dividing the square shape with two straight lines that intersect at the position of the cursor. The display area information uses one of the four vertices of the square shape as a reference point. The coordinates of a diagonal vertex in a two-dimensional coordinate system are indicated. In the first step, as the cursor position information,
A portable information terminal device, wherein information indicating coordinates of the position of the cursor in the two-dimensional coordinate system is stored in the second memory. 5. The portable information terminal device according to claim 4, wherein the two-dimensional coordinate system has a first coordinate axis and a second coordinate axis, and the display area information includes information of the diagonal vertex. A first coordinate maximum value indicating a coordinate value on the first coordinate axis; and a second coordinate maximum value indicating a coordinate value of the diagonal vertex on the second coordinate axis. A first cursor coordinate value indicating a coordinate value of the cursor position on the first coordinate axis, and a second cursor coordinate value indicating a coordinate value of the cursor position on the second coordinate axis; The second step compares a value obtained by subtracting the first cursor coordinate value from the first coordinate value with the first cursor coordinate value for the first coordinate axis, and compares the second coordinate axis. For the second coordinate value from the second coordinate value.
A portable information terminal device, wherein a value obtained by subtracting a cursor coordinate value is compared with a magnitude of the second cursor coordinate value, and the maximum area is determined based on a combination of a comparison result for each coordinate axis. 6. A display unit having a display area of a predetermined shape,
An input unit having operation means for operating a position of a cursor in the display area; a processor; and a memory storing software instructions for causing the processor to perform system control including control of the display unit and the input unit. When an event that requires a message notification from the system side occurs to the user using the portable information terminal device, the predetermined shape of the display area is determined by using the position of the cursor as an intersection. A window generation method for generating a reply window for message notification with respect to a maximum area among four areas in the case of dividing into four areas, wherein display area information is information on the predetermined shape of the display area. When the maximum area is determined, any vertex of the reply window A first step of pre-holding base point information indicating whether or not to be a base point for generating a reply window; and a second step of obtaining a position of the cursor in the display area and generating cursor position information. A third step of generating maximum area information indicating the maximum area from the display area information and the cursor position information; and referring to the base point information, based on the maximum area information, the reply window. A fourth step of determining which of the vertices is to be the base point; and making the position of the cursor when the event occurs coincide with the base point of the reply window as the base point, A fifth step of generating a reply window. 7. The window generation method according to claim 6, wherein the predetermined shape of the display area is a quadrangular shape, and the four divisions are two parallel to each of two opposite sides of the quadrangular shape. The display area information is obtained by dividing the rectangular shape by two straight lines that intersect at the position of the cursor, and the display area information is obtained by using one vertex of the four vertices of the rectangular shape as a reference point. A window generation method, which is information indicating coordinates of a diagonal vertex in a two-dimensional coordinate system, and wherein the cursor position information is information indicating coordinates of a position of the cursor in the two-dimensional coordinate system. 8. The window generation method according to claim 7, wherein the two-dimensional coordinate system has first and second coordinate axes, and wherein the display area information includes information of the diagonal vertex. The first coordinate maximum value indicating the coordinate value on the first coordinate axis, and the second coordinate maximum value indicating the coordinate value of the diagonal vertex on the second coordinate axis, the cursor position information, A first cursor coordinate value indicating a coordinate value of the cursor position on the first coordinate axis; and a second cursor coordinate value indicating a coordinate value of the cursor position on the second coordinate axis. A third step of comparing the first coordinate axis with a value obtained by subtracting the first cursor coordinate value from the first coordinate value and a magnitude of the first cursor coordinate value; From the second coordinate value,
A method for generating a window, comprising: comparing a value obtained by subtracting a cursor coordinate value with the second cursor coordinate value; and determining the maximum area based on a combination of comparison results for each coordinate axis. 9. A display unit having a display area of a predetermined shape;
A portable information terminal device comprising: an input unit having operation means for operating a position of a cursor in the display area; a processor connected to the display unit and the input unit; and a memory readable and writable by the processor. When an event that requires a message notification from the system of the portable information terminal device to the user using the portable information terminal device occurs, the processor determines the predetermined shape of the display area using the position of the cursor as an intersection. Is a recording medium that records software instructions and control data for generating a message notification reply window for a maximum area of the four areas when the area is divided into four areas, wherein the control data is The display area information, which is information on the predetermined shape of the display area, and the maximum area are defined. And the base information indicating which vertex of the reply window is used as a base point for generating the reply window when the reply is completed. The software instruction acquires a position of the cursor in the display area. A second step of determining the maximum area based on the display area information and the cursor position information and generating maximum area information; a first step of generating the maximum area information based on the display area information and the cursor position information; A third step of determining which vertex of the reply window is to be the base point based on the maximum area information; and a position of the cursor and the base point when the event occurs. Generating the reply window by matching the vertices of the reply window Characterized in that it comprises the steps,
A recording medium readable by the processor. 10. The recording medium according to claim 9, wherein the predetermined shape of the display area is a quadrangular shape, and the quadrant is divided into two parallel sets of two opposite sides of the quadrangular shape. The display area information is obtained by dividing the square shape by two straight lines that intersect at the cursor position, and the display area information is two-dimensional with one vertex of the four vertices of the square shape as a reference point. A recording medium that indicates coordinates of a diagonal vertex in a coordinate system, and wherein the cursor position information is information indicating coordinates of a position of the cursor in the two-dimensional coordinate system. 11. The recording medium according to claim 10, wherein the two-dimensional coordinate system has first and second coordinate axes, and wherein the display area information includes a first one of the diagonal vertices. A first coordinate maximum value indicating a coordinate value on the first coordinate axis, and a second coordinate maximum value indicating a coordinate value of the diagonal vertex on the second coordinate axis. A first cursor coordinate value indicating a coordinate value of the cursor position on the first coordinate axis; and a second cursor coordinate value indicating a coordinate value of the cursor position on the second coordinate axis. In the second step, for the first coordinate axis, a value obtained by subtracting the first cursor coordinate value from the first coordinate value is compared with a magnitude of the first cursor coordinate value, and for the second coordinate axis, From the second coordinate value, the second
A recording medium, wherein a value obtained by subtracting a cursor coordinate value is compared with a magnitude of the second cursor coordinate value, and the maximum area is determined based on a combination of comparison results of respective coordinate axes. 12. A display unit having a display area of a predetermined shape, an input unit having an operation means for operating a position of a cursor in the display area, a processor, and a display unit and an input unit for the processor. A first memory storing software instructions for performing system control including control and control data used for the system control;
A portable information terminal device having a second memory used for temporary data storage in system control by the processor, for updating the software instructions and the control data stored in the first memory. A recording medium on which an update program is recorded, wherein, when an event requiring a message notification from the system side to a user using the portable information terminal device occurs, the cursor is transmitted to the processor as the system control. In order to generate a reply window for the message notification with respect to the maximum area among the four areas when the predetermined shape of the display area is divided into four with the position of the intersection as an intersection, Display area information that is information relating to the predetermined shape of the display area; An instruction to add base information indicating which vertex of the reply window is to be the base of generation of the reply window when the rear is determined; and the display area of the cursor with respect to the software instruction. A first step of acquiring a position in the second memory and storing it as cursor position information in the second memory; and referring to the display area information and based on the cursor position information stored in the second memory. A second step of determining the maximum area and storing it in the second memory as maximum area information; and referring to the base point information, the maximum area information stored in the second memory. A third step of determining which vertex of the reply window is to be the base point, based on A recording medium comprising: a command to add a fourth step of generating the reply window by making the position of the cursor coincide with the vertex of the reply window as the base point. . 13. The recording medium according to claim 12, wherein the predetermined shape of the display area is a quadrangular shape, and the quadrant is divided into two parallel sets of two opposing sides of the quadrangular shape. The display area information is obtained by dividing the square shape by two straight lines that intersect at the cursor position, and the display area information is two-dimensional with one vertex of the four vertices of the square shape as a reference point. The coordinates of a diagonal vertex in a coordinate system are indicated, and the first step includes, as the cursor position information,
A recording medium for storing information indicating coordinates of the position of the cursor in the two-dimensional coordinate system in the second memory. 14. The recording medium according to claim 13, wherein the two-dimensional coordinate system has a first coordinate axis and a second coordinate axis, and the display area information includes the first and second coordinates of the diagonal vertex. A first coordinate maximum value indicating a coordinate value on the first coordinate axis, and a second coordinate maximum value indicating a coordinate value of the diagonal vertex on the second coordinate axis. A first cursor coordinate value indicating a coordinate value of the cursor position on the first coordinate axis; and a second cursor coordinate value indicating a coordinate value of the cursor position on the second coordinate axis. In the second step, for the first coordinate axis, a value obtained by subtracting the first cursor coordinate value from the first coordinate value is compared with a magnitude of the first cursor coordinate value, and for the second coordinate axis, From the second coordinate value, the second
A recording medium for comparing the magnitude of a value obtained by subtracting a cursor coordinate value with the second cursor coordinate value, and determining the maximum area based on a combination of comparison results for each coordinate axis. .