JP2005234717A - Portable terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable terminal which is convenient to a user at the time of performing document edition. <P>SOLUTION: This portable terminal is provided with a setting control part 26 which sets the contents of a character erasing operation, a display part 10 which displays a cursor on a display screen, a position deciding part 22 which decides the reference position of character erasure at the display position of the cursor and an erasure control part 24 which controls a character erasing operation based on the display position and reference position of the cursor according to the contents of the character erasing operation when a clear key is depressed. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to improvement of a document editing function of a mobile terminal, and more particularly to improvement of deletion control of inputted characters.

  Conventionally, a portable terminal such as a cellular phone has been provided with a document editing function such as creation of a mail document. When editing a document with such a portable terminal, if it becomes necessary to delete the input character, the character is deleted using the clear key.

As a technique for improving the efficiency of such a character deletion operation, Japanese Patent Application Laid-Open Publication No. 2004-228561 has a configuration in which, when a numeral at an arbitrary position in a numeric string is deleted, the position of a digit display mark is automatically corrected to an appropriate position. It is disclosed.
JP-A-8-305687

  However, the mobile terminal according to the above-described conventional technology has only one clear key, and the operation content varies depending on the model. In particular, when the user changes the model, an operation different from the expected deletion operation occurs and the usability is improved. There was a problem of getting worse.

  The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide a portable terminal that is user-friendly when editing a document.

  In order to achieve the above object, the present invention provides a portable terminal capable of editing a document, setting means for setting the content of a character deletion operation, display means for displaying a cursor on a display screen, and display of the cursor Based on the display position of the cursor and the reference position according to the contents of the character deletion operation, the position determination means for determining the reference position for character deletion at the position, the deletion means for deleting the character displayed on the display screen Deletion control means for controlling the character deletion operation by the deletion means. Here, the deleting means can function as a delete key or a backspace key. In addition, the reference position for character deletion can be either the left or right side of the cursor.

  In the portable terminal, when the character deletion operation is set by the setting unit, the content of the character deletion operation is preferably displayed on the display screen by the display unit.

  The present invention is also a method for controlling a portable terminal capable of editing a document, wherein a setting step for setting the content of a character deletion operation, a display step for displaying a cursor on a display screen, and a character at the display position of the cursor A position determination step for determining a reference position for deletion; a deletion step for deleting a character displayed on the display screen; and the character based on the display position of the cursor and the reference position according to the content of the character deletion operation. And a deletion control step for controlling the deletion operation.

  Further, the present invention provides a setting means for setting the content of the character deletion operation, a display means for displaying a cursor on the display screen, a position determination means for determining a reference position for character deletion at the display position of the cursor, and a display screen. The computer functions as a deletion unit that deletes the displayed character, and a deletion control unit that controls the character deletion operation by the deletion unit based on the display position of the cursor and the reference position according to the contents of the character deletion operation. It is a program for making it happen.

  In the mobile terminal according to the present invention, since the character deletion operation can be set according to the display position of the cursor, it is possible to avoid the deletion operation contrary to the user's intention, and the user-friendly mobile terminal Can be realized.

  Hereinafter, the best mode for carrying out the present invention (hereinafter referred to as an embodiment) will be described with reference to the drawings.

  FIG. 1 is a block diagram showing a configuration of an embodiment of a mobile terminal according to the present invention. In FIG. 1, the mobile terminal includes a display unit 10, an operation unit 12, a storage unit 14, a communication unit 16, and a control unit 18.

  The display unit 10 is composed of, for example, a liquid crystal display, and displays key input contents such as character data, a cursor, various graphics, and the like. When the present invention is applied to a personal computer or the like, the display unit 10 can also be configured with a CRT or the like. The key input is performed by the operation unit 12 shown in FIG. This operation part 12 is comprised by the operation button etc. of a portable terminal, for example. The operation buttons include a cross key as a cursor operation means for moving the cursor up, down, left and right on the display screen, a clear key as a deletion means for deleting characters displayed on the display screen, and the like. In addition, when the present invention is applied to a personal computer or the like, the operation unit 12 can be configured by a region designation means such as a keyboard and a mouse, a barcode, and the like.

  The storage unit 14 includes, for example, a working RAM for the control unit 18, an EEPROM as a nonvolatile memory, a magnetic storage medium, and the like, and stores various data such as key input contents and character deletion operation contents to be described later. Is done.

  The communication unit 16 is used when the present invention is applied to a mobile communication terminal, and realizes a call function as a mobile communication terminal by communicating with a base station by a known method. When the present invention is applied to a PDA (Personal Digital Assistance), a personal computer or the like, the communication unit 16 is not necessarily required.

  The control unit 18 includes, for example, a CPU and controls these operations while exchanging data with the display unit 10, the operation unit 12, the storage unit 14, and the communication unit 16.

  The display control unit 20 of the control unit 18 mainly controls the content displayed on the display unit 10. The position determination unit 22 performs control for determining a reference position for character deletion, which will be described later, at the cursor display position. The deletion control unit 24 controls an operation for deleting a character displayed on the display screen based on pressing of the clear key of the operation unit 12. The setting control unit 26 controls the process of setting the contents of the character deletion operation and switching the contents.

  FIG. 2 shows an example of the display screen of the display unit 10 in the portable terminal according to the present invention. In FIG. 2, the character “ABC” is displayed on the display screen, and the cursor is displayed at the position of the character “B”. These display operations are controlled by the display control unit 20. In the portable terminal according to the present invention, the user can select and set a character deletion operation when the clear key of the operation unit 12 is pressed to delete a character in this state.

  In the embodiment shown in FIG. 2, when deleting a character, it is possible to set which side is the left or right side of the displayed cursor. This reference position is hereinafter referred to as a cursor reference, and the setting control unit 26 controls the setting of the cursor reference. In FIG. 2, the cursor reference 30 is set on either the left or right side of the cursor 28 displayed on the character “B”. The cursor reference 30 is not displayed on the screen, and only the cursor 28 is displayed on the screen. Next, in the present embodiment, the function of the clear key can be set to either a back space, that is, a function that deletes the character on the left side of the cursor reference 30, or a delete, that is, a function that deletes the character on the right side of the cursor reference 30. Accordingly, when the cursor reference 30 is set to the left side of the cursor 28 and the clear key function is set to the backspace, the character “A” is deleted by pressing the clear key, and the clear key function is set to delete. The letter “B” is deleted by pressing the clear key. When the cursor reference 30 is set to the right side of the cursor 28 and the clear key function is set to backspace, the character “B” is deleted by pressing the clear key, and the clear key function is set to delete. The character “C” is deleted by pressing the clear key. The setting control unit 26 also controls the setting of the clear key function.

  The position of the cursor reference 30 described above, that is, the reference position for character deletion, can be configured such that the position determination unit 22 determines the display position of the cursor 28 when the clear key is pressed. . Further, the deletion control unit 24 controls the character deletion operation of deleting which character by pressing the clear key based on the determination result of the position determination unit 22 and the clear key function.

  FIG. 3 shows an example of a screen for setting the details of the clear key deletion operation (the cursor reference and the clear key function). In FIG. 3, a column for setting the contents of the delete operation is provided for each of the cursor position at the first character position, the middle character position, and the last character position. The leading character position is the character position at the left end of the first line on the first page of the edited document. In this case, even if the position is a space, it is treated as the first character position. The end character position is the character position at the right end of the last line in the last page of the edited document. In this case, even if it is in the middle of the line or even if the position is a space, it is treated as the final character position. The character position in the sentence refers to a character position other than the first character position and the last character position, and even if the position is a space, it is treated as a character position in the sentence.

  As shown in FIG. 3, the selected field of the key function field or the cursor reference field is displayed with a thick frame (hereinafter referred to as focus), and the cross key on the operation unit 12 is operated. By doing so, this focus can be moved to an arbitrary column. The user can focus on a desired field with the cross key and set the contents shown in the field. Note that the movement and display of the focus are controlled by the display control unit 20.

  FIG. 3 shows an example in which the function of the clear key is set to delete when the cursor is at the character position in the sentence. In this case, since the delete field is in focus, when the determination key of the operation unit 12 (preferably arranged at the center of the cross key) is pressed, the setting control unit 26 deletes the clear key. Set. In this case, the cursor reference is set by moving the focus to the cursor reference field at the character position in the sentence with the cross key, selecting either "Left" or "Right" and pressing the Enter key. Can be similarly performed. Other fields can be set in the same manner. The contents of the deletion operation set as described above are preferably marked by reversing the selected field, displaying a predetermined figure, or the like. With this mark, the user can easily confirm the current setting contents. The display of the mark is also controlled by the display control unit 20.

  In addition, an operation confirmation column 32 is provided at the bottom of the display screen shown in FIG. In the operation confirmation column 32, when the character deletion operation is set, the deletion operation of the clear key when the column displaying the focus is selected is displayed. In the example of FIG. 3, the delete operation of the clear key is displayed when delete is selected when the cursor is at the character position in the sentence and the cursor reference is right. An example of this deletion operation is also controlled by the display control unit 20.

  FIG. 4 shows a flow of an operation when the content of the clear key deletion operation is set in the mobile terminal according to the present invention. This flow assumes that the setting screen shown in FIG. 3 is displayed on the display unit 10 in advance by the operation of the operation unit 12. In FIG. 4, when the cross key on the operation unit 12 is pressed (S1), the display control unit 20 moves the focus to a desired field on the setting screen (S2) and displays it (S3). Here, when the determination key of the operation unit 12 is pressed (S4), the display control unit 20 changes the mark described above to the selected column where the focus is displayed. In addition, the setting control unit 26 stores the contents of the selected field (the function of the clear key or the cursor reference) as the setting contents of the clear key deletion operation in the storage unit 14 (S5).

  Next, when the cross key is pressed again (S6), the process returns to S2 and the setting operation is repeated. When the clear key is pressed instead of pressing the enter key in S4 and S6 (S7, S8), the deletion control unit 24 loads a character deletion program from the storage unit 14 based on the settings made so far. Read (S9). As a result, the deletion control unit 24 executes a desired deletion operation in accordance with pressing of the clear key.

  The control unit 18 described above may be a computer configured with a CPU at the center. In this case, each function of the control unit 18 is realized by the CPU executing a program stored in a memory card or other medium. Is done.

It is a block diagram of the structure of one Embodiment of the portable terminal concerning this invention. It is a figure which shows the example of the display screen of the display part in embodiment of FIG. It is a figure which shows the example of the screen for setting the content of the deletion operation | movement of a clear key. It is a figure which shows the flow of operation | movement in the case of setting the content of deletion operation | movement of a clear key in the portable terminal concerning embodiment of FIG.

Explanation of symbols

10 display unit, 12 operation unit, 14 storage unit, 16 communication unit, 18 control unit,
20 display control unit, 22 position determination unit, 24 deletion control unit, 26 setting control unit,
28 cursors, 30 cursor reference.

Claims (6)

A portable terminal that can edit documents,
A setting means for setting the content of the character deletion operation;
Display means for displaying a cursor on the display screen;
Position determination means for determining a reference position for character deletion at the display position of the cursor;
A deletion means for deleting characters displayed on the display screen;
In accordance with the content of the character deletion operation, a deletion control means for controlling a character deletion operation by the deletion means based on the display position of the cursor and the reference position;
A portable terminal comprising:   2. The portable terminal according to claim 1, wherein the deleting unit functions as a delete key or a backspace key.   3. The portable terminal according to claim 1, wherein the character deletion reference position is one of the left and right sides of the cursor.   The portable terminal according to any one of claims 1 to 3, wherein when the character deletion operation is set by the setting means, the content of the character deletion operation is displayed on the display screen by the display means. A featured mobile terminal. A method for controlling a portable terminal capable of editing a document,
A setting step for setting the content of the character deletion operation;
A display step for displaying a cursor on the display screen;
A position determination step of determining a reference position for character deletion at the display position of the cursor;
A deletion step of deleting characters displayed on the display screen;
A deletion control step of controlling the character deletion operation based on the display position of the cursor and the reference position according to the content of the character deletion operation;
A method for controlling a mobile terminal, comprising: Setting means for setting the contents of the character deletion operation,
Display means for displaying a cursor on the display screen;
Position determination means for determining a reference position for character deletion at the display position of the cursor;
A deletion unit that deletes a character displayed on the display screen; and a deletion control unit that controls a character deletion operation by the deletion unit based on the display position of the cursor and the reference position according to the content of the character deletion operation;
As a program to make the computer function as.

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