JPS63286893A - Display device having expanded character display function for data processor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an enlarged character display function suitable for use in various data processing systems having document editing functions such as word processors, personal computers, and data processing systems (DPS). In particular, in a display device that enlarges a character string on one screen and displays it in the same size as a printed image when a character is enlarged at an arbitrary magnification when editing a document, the operation target In addition to quickly moving the cursor to indicate the desired characters, etc., and for characters that extend beyond the screen.

The present invention relates to a display device that improves the operability of a data processing system when creating documents by visualizing all patterns by scrolling a certain amount.

Specifically, when character string data created using a word processor etc. is displayed on the display screen at various magnifications, horizontal movement of the cursor prohibits vertical scrolling of the screen. By moving the cursor character by character within the displayable range of the screen, horizontal movement of the cursor is realized that allows the desired character to be quickly indicated.

In addition, when moving the cursor vertically, scrolling in the left and right directions of the screen is prohibited, and the 5 screens are scrolled downward (or upward) by a fixed amount, so that the cursor can be directed even if the screen is horizontally long. The entire pattern of written characters can be visually displayed on the screen.

By controlling the movement of the cursor in this manner, it is possible to quickly move the cursor in a display device that has a function of displaying a character string enlarged at an arbitrary magnification, that is, a print image display function.

The present invention relates to a display device that improves the processing efficiency of a data processing device.

BACKGROUND ART Traditionally, various data processing systems such as word processors and personal computers use one display device as a display device.
A display means such as an LCD or CRT display is connected, and created document data, edited image data, etc. are displayed in a visible pattern.

In conventional data processing systems such as word processors, 1
During the G1 collection, in order to emphasize a specific character or character string, the size is changed by an arbitrary magnification through enlargement processing, and the enlarged character pattern is displayed on the screen of a single display device, so-called enlargement. A display device having a character display function is used.

However, in relatively inexpensive portable word processors, LCD displays are often used, and the displayable area is horizontally long, and when the magnification is large, for example 10 times to several tens of times, text data cannot be displayed. Situations arise where it is not always sufficient to do so.

In this case, for areas of character display data that cannot be visualized on one screen, it is necessary to switch one screen by moving the cursor up and down.

Furthermore, when moving the cursor, especially when moving horizontally, the cursor will, in principle, move sequentially to a specific position such as the lower left edge of the displayed character, so if enlarged characters of different magnifications are mixed, There are characters that protrude from the screen due to enlargement.

Screen scrolling is required as the cursor moves.

Generally, a display device used in a data processing apparatus has a large horizontal display screen, but very often the vertical display screen is not necessarily large enough.

The reason for this is that the screen itself of the display device is not large enough to begin with, or.

This is because by using a part of the screen for guidance or other display purposes, the test kit displayable range is narrowed.

For example, this tendency is particularly prevalent in LCD-type personal word processors that have recently been widely used. In such a case, since the number of lines that can be displayed on the display screen is small, problems arise when displaying enlarged characters.

As described above, the first problem with conventional display devices having an enlarged character display function is that, especially when the vertical size of the display screen is short, some of the enlarged characters may protrude from the screen. Since not all patterns are visualized,
Vertical scrolling is required.

In this case, even if the screen is scrolled by a continuous physical amount with respect to the current display screen, the next cursor position may end up extending beyond one screen. On the other hand, if the user scrolls so that the next cursor position is within the screen, the amount of scrolling will increase, and the pattern in the middle of the enlarged character will no longer be visible.

A second disadvantage is that when the cursor is moved horizontally, if several types of characters with different enlargement factors are mixed in the display line, the next cursor position changes vertically in a random manner. As a result, it may be necessary to scroll the screen in response to the next cursor position that changes in the vertical direction.

When screen scrolling occurs, it takes time to move the cursor to the horizontal target position.

It takes a lot of time and operation efficiency decreases.

The reason for this is that scrolling the screen changes the display screen, which requires time to create new display data.

As described above, display devices with an enlarged character display function used in conventional data processing equipment have problems with cursor processing when enlarged characters are displayed, and the visualization of enlarged characters is insufficient, resulting in the cursor Since lateral movement cannot be performed quickly, there is a problem in that the operational efficiency during document creation is reduced.

Moreover, in the display device having the enlarged character display function of the data processing device of the present invention, the problem of the conventional display device, that is, when the entire pattern of the enlarged characters protrudes from the display screen, the screen scrolling This solves the problem of not being able to easily visualize all patterns, and not being able to quickly move the cursor horizontally when enlarged characters are mixed. When the text extends beyond the enlarged text, the vertical movement of the next cursor position is controlled to a constant value, and the pattern in the middle of the enlarged character is visualized.

When the cursor moves horizontally, the next cursor position is controlled so that it is within the displayable range, so that it can quickly move to the target position. The purpose is to improve the operability of processing equipment.

Configuration For this purpose, the present invention includes an input device, a display device,
A conventional data processing system that includes a text editing means for creating document text, an enlargement character means for enlarging edited characters, a cursor display means, and a central processing unit that controls each of these parts, and has a document creation function. A scroll control means for controlling the device by a preset physical scroll amount so that one screen continues, and a cursor control means for controlling the next cursor position by the permissible vertical movement amount when the cursor moves horizontally. and when the next cursor position protrudes from the screen of the display device, the scroll control means controls the scroll amount by the preset scroll amount;
when moving the cursor horizontally.

If the line contains characters with different magnifications,
The cursor control means controls the next cursor position within the range of the allowable movement amount.

Next, embodiments of a display device having an enlarged character display function of the data processing apparatus of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a functional block diagram showing an embodiment of a main part of a display device having an enlarged character display function of a data processing apparatus according to the present invention. In the drawings, 1 is an input device, 2 is an input control circuit, 3 is a cursor movement circuit, 4 is a cursor position determination circuit, 5 is a scroll control circuit, 6 is a cursor display circuit, 7 is an enlargement magnification setting circuit, and 8 is a character enlargement circuit. 9 is an enlargement magnification setting display screen circuit, 10 is a text editing circuit, 11 is an independent word dictionary area, 12 is a document text storage area, 13 is a single character extraction circuit, and 14 is a CG (
15 is a text display circuit, 16 is a display screen moving circuit, and 17 is a display device.

The configuration of the data processing device, such as a word processor, shown in FIG. 1 is basically the same as that of a conventional system.

However, functionally, the cursor position determining circuit 4 and the scroll control circuit 5 have a control function that is different from that of conventional display devices.

The functions of each block shown in FIG. 1 are outlined as follows.

The input device 1 includes a keyboard and the like, and is an input means for inputting character information necessary for starting the system and editing the command 1, instructions for moving a cursor, instructions for enlarging characters, and the like.

The input control circuit 2 transmits commands input from the input device 1 to each control unit, and also transmits character information among the input data to the text editing circuit 10 and information regarding the cursor position to the cursor movement circuit. 3, the numerical information of the enlargement magnification is further transferred to the enlargement magnification setting circuit 7.

The cursor movement circuit 3 transmits the transferred cursor position information to the cursor position determination circuit 4.

The cursor position determination circuit 4 determines the input cursor position (
Determines the requested new cursor line/column position to be displayed based on information on the requested cursor position) and information on the current cursor position device, and creates position information to display the cursor at the specified position. do. In this case, as will be described in detail later, when switching screens, the cursor position is determined so that the screen can be switched as quickly as possible.

The scroll control circuit 5 scrolls the screen according to the cursor row/column position determined by the cursor position determining circuit 4. In this case, as will be described in detail later, when switching screens, the display of characters with a large magnification,
When the current display range is exceeded, a new screen display start line/column is determined so that the entire pattern is converted.

The cursor display circuit 6 transmits display data of a cursor pattern to the display device 1 in order to display a cursor based on the cursor position information given from the cursor position determination circuit 4.
7 VRAM.

The magnification setting circuit 7 sets the magnification magnification for each character given via the input control circuit 2, that is, based on numerical data.

The character enlargement circuit 8 enlarges the font pattern and creates display data with enlarged characters arranged in the same manner as the print image.

The magnification setting display screen circuit 9 creates display data of a character pattern corresponding to the magnification magnification based on the numerical data set in the magnification magnification setting circuit 7, and displays it in the VR of the display device 17.
Expand on AM.

The text editing circuit 10 performs editing processing on the characters, attribute information, document format information, etc. of a document using the code input from the input control circuit 2.

The independent word dictionary area 11 is a dictionary area in which character codes such as kanji characters are stored.

The document text storage area 12 is a storage means for storing character codes, attribute information, format information, and the like.

The single character extraction circuit 13 extracts a dot pattern corresponding to a single character code from the CG font area 14 for each character and outputs it to the text display circuit 15 and character enlargement circuit 8.

The CG font area 14 is a font data area in which data for each character is stored in a dot pattern.

The text display circuit 15 receives character data corresponding to the display address from the document text storage area 12, and outputs the font data converted by the CG font area 14 via the single character extraction circuit 13 to the VRAM of the display device 17 as display data. Expand on top.

The display screen moving circuit 16 is connected to the document text storage area 12.
For character data, specify new enlargement, change magnification,
When an action such as correction or deletion of characters is taken, a request is made to change the display data developed on the VRAM of the display device 17 in accordance with a request mode such as enlargement mode, correction mode, or deletion mode.

The display device 17 is an LCD display, a CRT display, or other display means, and includes VRAM (video memory).
Display data such as character/numeric information such as documents being edited or created by the text display circuit 15 and magnification setting display screen circuit 9, guidance necessary for operation, etc., is written to the VRAM. As a result, a dot pattern is visually displayed on the display screen. Further, cursor display data is created by the cursor display circuit 6.

Although the printing device is not particularly shown, it is possible to use a dot image printing device such as a known thermal dot printer, inkjet printer, plunger magnet type printer, etc. Documents, etc. are printed in a dot pattern using the character data obtained.

In the order of explanation, we will briefly describe the operation when creating document text, which is common to conventional word processors.

Input data input from the input device 1 is applied to the text editing circuit 1o via the input control circuit 2, and is taken in as a character code.

In this case, if necessary, the independent word dictionary area 11 converts it into a Kanji character code and stores it in the document text storage area 12.

Each time, the status is displayed on the screen of the display device 1.7.

Further, text position data is provided to a cursor position determination circuit 4 via a cursor movement circuit 3.

The cursor position determination circuit 4 supplies this position data to the scroll control circuit 5 in order to determine whether or not to scroll.

The resulting cursor line/column position data is passed to the text display circuit 15.

The text display circuit 15 determines the data to be displayed on the screen and performs display switching when one display switching is necessary.

For example, when creating a horizontal document, if text data is entered at the right end of the screen, the input position of the primary data will be at the left end of the next line, but if that position does not fit within the display screen, 1 Screen switching is required.

Also, when you operate a cursor movement key, that is, when you press a cursor movement key with an arrow or the like displayed on the key top indicating the direction of movement, the cursor moves 1 point in the direction of the arrow.
Moved character by character. Furthermore, when an operation such as character deletion or character correction is performed on text data at a certain position, the cursor position is also moved to the next text data position.

In these cases, when the cursor position does not fit within the display screen, it is also necessary to switch one screen.

In conventional display devices, when switching the display screen, the screen is simply switched so that the requested cursor line/column is within four screens.

However, in the display device having the enlarged character display function of the present invention, scrolling at the time of screen switching is controlled as follows.

FIG. 2 is a flowchart showing the main processing flow when switching display screens in the display device having the enlarged character display function of the present invention shown in FIG. In the drawings, #1 to #9 indicate steps.

As shown in FIG. 2, in step #1, the cursor position determination circuit 4 determines the position of the requested cursor line/column from the text position data, and in the next step #2, the requested cursor position is set on one screen. Check whether the cursor stop position is within the range allowed.

FIG. 3 is a diagram showing an example of a displayable range of a display screen of a display device having an enlarged character display function used in a data processing device such as a word processor. On the screen, D indicates a display area.

If the cursor line/column position is outside the range bounded by the broken line in FIG. 3, it will be scrolled.

When screen scrolling is required for display switching, the flow in FIG. 2 proceeds to step #3, where the scroll control circuit 5 determines the line and column at which the new screen should be displayed.

In the next step #4, when the obtained new screen display start line/column is compared with the current screen display start line/column, if either one is the same, the process advances to step #6.

In this step #6, it is determined whether the amount of scroll movement is within the data displayable range. If it is within the range, in step #7, the display is switched from the display start line/column, and the display is changed from the display start line/column. If the existing data is available, the effort of creating new display data can be omitted by moving that part.

In step #8, display data for the portion that has not yet been developed is created and displayed.

On the other hand, if the position of the new screen display start line/column is determined to be different in the previous step #4, proceed to the next step #5 and create display data from that position. to be displayed. In this case, even if the remaining display data is reused, it will not save much processing time, so new display data is created.

Once the text data display screen is determined, in step #9, the cursor display circuit 6 displays a cursor at the requested cursor row/column position.

When creating new display data using the text display circuit 15, character data to be developed into display data is retrieved from the text storage area 12, and the single character extraction circuit 1
3, the font corresponding to the character code is extracted from the CG font area 14. - The font thus extracted is passed to the text display circuit 15 and displayed as display data.

When the text storage area 12 is changed by such processing, the display screen also changes accordingly.

This change in the display screen occurs not only when characters are input, but also when attributes are added to characters, or when some action is taken in the document text storage area 12, such as deleting or modifying characters. Then, the process shown in FIG. 2 is performed.

As mentioned above, when creating document text, character enlargement is often necessary to emphasize specific characters.

In the display device having the enlarged character display function of the present invention, there is an important relationship between character enlargement processing, in other words, the cursor position on the display screen according to the enlargement attribute and screen switching.

Therefore, the operation of displaying enlarged characters performed by conventional word processors and the like, that is, the operation of displaying image data on the screen in a pattern array of the same size as the printed image, will be briefly described.

FIG. 4 is a memory configuration diagram showing an example of a storage state of character data when attributes are attached to characters in the document text storage area 12 of the data processing device shown in FIG.

When attributes are attached to characters, attribute data is added in front of each character code and stored in the document text storage area 12, as shown in FIG.

In this enlargement process, the character pattern on the display screen is enlarged at a desired magnification, and arranged in the same way as the printed image.
It is displayed on the screen of the display device 17.

In this way, when attaching an attribute to a character, specify the attribute by moving the cursor to specify the character on the display. Note that an attribute here refers to information that modifies a single character.
The enlargement attribute for changing the size of characters is also stored in the one-document text storage area 12 in a state as shown in FIG.

This enlargement process is performed as attribute data before the target character code, as shown in FIG. 4 above.

This is an operation for adding enlarged data.

By the way, when some action is taken on the document text storage area 12 as shown in FIG.
The subsequent cursor position becomes the next text character position.

Here, the cursor position means the offset line and offset column from the top of the page when the character input range of one page is divided into lines and columns at regular intervals. This is a position assumed to be a so-called physical row/column.

And the position of the cursor indicating the character of the text is 1
On the display screen, this is when it is at the bottom edge of the character.

Therefore, the cursor position after taking an action on the text storage area 12 is required to be on the physical line and physical column at the bottom of the next text character.

FIG. 5 is a diagram showing an example of a display screen for explaining the relationship between a character pattern and a cursor position during operations such as deleting one character on a display device having an enlarged character display function; (2) is a diagram showing the display screen after the operation. In the drawings, ■ to ■ indicate the cursor position.

As shown in (1) in Figure 5, when enlarging the character "2" with a function or attribute such as deleting characters at the cursor position, the subsequent display screen will be As shown in (2) in FIG. 5, the position ■ at the bottom of the next text character rMJ becomes the cursor position, and operations on this character rMJ become possible.

However, in the case of the display device of a conventional word processor,
The next cursor position is changed from the cursor position (1) in this Figure 5 to the cursor position (2) in Figure 5,
At the same time, the document text creation screen is switched by screen scrolling, so the pattern in the middle of the text character rMJ is not visually displayed.

This kind of screen scrolling is also the same when the cursor is moved down at the cursor position ■ in (1) in Figure 5.
The next cursor position becomes the cursor position (2) in FIG. 5, and the screen for creating the 5-document text is switched.

On the other hand, in the display device having the enlarged character display function of the present invention, as explained earlier in relation to the flow in FIG. From the cursor position ■ or ■ in (1) of Figure 5,
The cursor is not immediately moved to the cursor position (2) in FIG. 5.

FIG. 6 is a diagram showing an example of an enlargement designation screen in a display device having an enlarged character display function according to the present invention.

If you place the cursor on the bottom edge of a character on the display screen and request enlargement, a screen like this one shown in FIG. 6 will appear.

If you enter the number keys on the enlargement specification screen shown in Figure 6,
The magnification is changed.

When the execution key is pressed in this state, the enlargement magnification at that time is added to the character in the text storage area 12 specified by the cursor as an enlargement attribute as shown in FIG.

Once this magnification factor, or enlargement size, is set, the value is retained unless it is changed, so if you want to attribute the same magnification to subsequent strings, you need to specify the enlargement size again. There isn't.

When a character at a certain position is enlarged, its display area is changed, so in this case as well, the display screen changes and the cursor moves to the primary cursor position. Also, scrolling is performed as necessary.

FIG. 7 is a diagram showing an example of a display screen for explaining the relationship between a character pattern and a cursor position during enlargement processing in a display device having an enlarged character display function of the present invention.
(1) is the screen before the enlargement of the character indicated by the cursor, (
2) is a diagram showing the screen after enlargement. In the drawing, ■
and ■ indicate the cursor position.

On the display screen shown in (1) of Figure 7, if you place the cursor on the position ■ of the character "e" and add the 3x height and 3x width enlargement attributes, it will appear as shown in (2) of Figure 7. One character "e" is enlarged 3x3 times from the line down and to the right.

Then, the cursor position thereafter becomes a position ■ indicating the next text character "o".

When the character data in the text storage area 12 is changed by such processing, the display screen also changes as shown in FIG.
2), it is changed.

Next, cursor movement when enlarged characters are displayed on the display device having the enlarged character display function of the data processing apparatus of the present invention will be described.

In the display device having the enlarged character display function of the present invention, when the cursor request is horizontal movement, the cursor is moved within the range where the screen does not scroll vertically, that is, vertical screen scrolling is prohibited, and within the displayable range. Move left or right.

Further, when the cursor request is for vertical movement, the cursor is moved by prohibiting screen scrolling in the horizontal direction and scrolling in the vertical direction by the amount that one display screen continues.

FIG. 8 is a flowchart showing the main processing flow when the cursor is moved in the display device having the enlarged character display function of the data processing apparatus of the present invention shown in FIG. In the drawing.

#11 to #24 indicate steps.

Generally, in a word processor or the like, if you want to take some action on a desired character, you must move the cursor to the lower left position of that character.

The following Figure 9 is a diagram showing how the cursor position changes when the cursor is moved horizontally in the display state of enlarged characters in the display device having the enlarged character display function of the present invention. ~ @ Cursor position, ■', ■' by the display device having the enlarged character display function of this invention
, ■', ■', [phase]' indicate the cursor position on a conventional display device.

When the cursor is moved horizontally, as shown in the display screen of FIG. 9, the cursor is, in principle, moved to the lower left position ■ or ■ of the five characters.

However, each point at position 1 ■', ■', ■', ■I, @11 is originally the cursor requested position for each character, but in order to display the cursor position, screen scrolling is required. Therefore, the cursor position is intentionally changed to the position ■, ■, ■, ■, 0, one position before the line to start scrolling.

In the flow of FIG. 8, it is determined in step #11 whether or not a cursor movement key has been input.

When input using the cursor movement key, the next step #12
to determine whether the movement is horizontal or vertical.

This explanation is for horizontal movement, so step #16
Calculate the requested cursor position.

In step #17, it is determined whether the calculated digit position of the request cursor is within the displayable range, and if it is within the range, the process advances to step #19.

If it is outside the displayable range, go to step #18 to calculate the new screen display start digit position, and then go to step #1 in the same way.
Proceed to 9.

In step #19, it is determined whether the line position of the request cursor is within the displayable range, and if it is within the range, the process advances to step #21.

If the judgment result in step #19 is outside the displayable range, in step #20, the line position of the request cursor is changed to
Change the position to one line before the scroll start target line so that it is within the display screen (displayable range).

In the next step #21, it is determined whether the display start position has been changed.

If the display start position has been changed, proceed to the next step #
At step 22, the remaining display data is moved vertically or horizontally by a preset amount of movement and displayed.

In step #23, other new display data is created and displayed.

Thereafter, in step #24, a cursor is displayed. Note that if it is determined in step #21 that the display start position has not been changed, immediately proceed to step #24.
to display the cursor.

In the display device having the enlarged character display function of the present invention, when the cursor is moved horizontally as shown in FIG. In such a case, by intentionally changing the next cursor position to the position immediately before the scroll start target line, the cursor can be moved laterally efficiently.

In summary, when the cursor is moved horizontally, the display screen is scrolled only in the horizontal direction, that is, in the left and right directions, and scrolling in the vertical direction is prohibited.

The reason for this kind of control is to reduce the time loss caused by vertically scrolling the screen.
This is to shorten the time required to move the cursor, for example, to the target position [phase] as much as possible. however,
When the cursor is displayed in the middle of a character or in a position away from the character, the cursor is displayed at that position for convenience rather than the cursor indicating the characters above and below it, so the scroll control for that purpose is Not performed.

Next, control during vertical movement of the cursor will be explained.

As already mentioned, in practice, it often happens that, for example, in an LCD-type personal word processor, the test kit displayable range in the vertical direction of one screen is not necessarily sufficiently larger than in the horizontal direction.

In the case of such a display device, the number of lines that can be displayed is naturally small. Here, the display screen in the horizontal direction, that is, the number of displayable digits, is assumed to be sufficiently large, and the calculation of the new screen display start digit position when scrolling in the horizontal direction is performed in step #16 of the flow shown in FIG. ~#18 shall be performed.

In this way, in the case of a so-called horizontally long display screen, when displaying enlarged characters at a large magnification, it is necessary to display the characters multiple times on one display screen in order to make the entire character visible.

In this case, the requested cursor position when the cursor is moved vertically does not change the digits in the horizontal direction, but the lower left end of the character becomes the line position.

FIG. 1O shows a state in which enlarged characters are displayed in a display device having an enlarged character display function according to the present invention.

FIG. 7 is a diagram showing an example of a requested cursor position when the cursor is moved vertically. In the drawings, ■ to ■ indicate the cursor position.

In this Figure 1O, ■ and ■ indicate the current cursor position,
Assume that ■ indicates the requested cursor position when moving up, and ■ indicates the requested cursor position when moving up.

First, we will explain the required cursor position when moving the cursor up or down when the cursor position ■ or ■ is at the bottom of a character or a position within a character pattern, that is, when it is in a position where no action can be taken on the character. .

In the case of FIG. 10, the requested cursor position when moving the cursor up is ■ with respect to the current cursor position ■, and
The requested cursor position when moving the cursor up is ■.

If the current cursor position ■ is between the characters rAJ and "C", no action can be taken on either character.

Here, when specifying the letter "A", if cursor upward movement is selected, the lower left end of the letter rAJ becomes the requested cursor position ■.

The same goes for the character "C", and if cursor up movement is selected, the lower left end of one character rCJ becomes the requested cursor position ■, making it possible to take an action.

In this point, the current cursor position ■ is a one-character pattern rC
'', the requested cursor positions are ■ and ■, respectively.

When moving the cursor in the vertical direction, that is, in the vertical direction, steps 316 to #18.20 in the flow of FIG.
Similarly, assume that the requested cursor line position is controlled to be within the displayable range.

In this case, if you move the cursor upward from the cursor position ■ on the display screen shown in (1) in Fig. 5, the display screen shown in (2) in Fig. 5 will appear.
The screen will appear and the cursor will move to position ■.

However, on the display screen (2) in Fig. 5, the character "M
It is not possible to see the state in the middle of the enlarged characters.

Therefore, in the display device having the enlarged character display function of the present invention, the change amount of the new display start position is determined in advance, and when it is necessary to change the screen by scrolling, this value is used as the standard scroll amount.

Change the display start position according to this standard scroll amount,
Display starts from that position, and if the requested cursor position falls within the displayable range of the display screen at that time, that is, the displayable range shown in FIG. 3, the requested cursor position is set as the cursor position.

On the other hand, when the requested cursor position exceeds the displayable range, the scroll target position in that direction, that is, the end or end within the displayable range in FIG. 3 is set as the cursor position.

Next, scroll control during such vertical cursor movement will be described.

FIG. 11 shows an example of the relationship between the storage state of pattern data including enlarged characters on the video memory and the display range of the display screen, and when the cursor is moved vertically, in the display device having the enlarged character display function of the present invention. In drawing 0, which is a diagram showing the state of change in the display range in
indicates the current cursor position, ■' to ■' indicate the requested cursor position when the cursor is moved up, ■1 to ■' indicate the requested cursor position when the cursor is moved up, and D indicates the displayable range (display screen).

On the display screen as shown in Fig. 11, the cursor position ■,■
The requested cursor positions for upward cursor movement starting from , ■ are positions ■′, ■′, and ■′, respectively.

Further, the requested cursor positions when the cursor is moved up are positions ■'', ■1, and ■', respectively.

This request cursor position will be explained with reference to the flow shown in FIG. 8 above.

In this case, the cursor is moved vertically, and similarly to the case of horizontal movement, it is determined in step #11 whether or not a cursor movement key has been input.

When input using the cursor movement key, the next step #12
to determine whether the movement is horizontal or vertical.

In this case, it is vertical movement, so step #13 below
Calculate the requested cursor position.

In step #14, it is determined whether the calculated line position of the request cursor is within the displayable range, and if it is within the displayable range, the process advances to step #21.

If it is outside the displayable range, the new screen display start line position is calculated in step #15, and then the process proceeds to step #19.

In step #19, it is determined whether the line position of the request cursor is within the displayable range, and if it is within the range, the process advances to step #21.

The subsequent process is the same as the previous horizontal movement, step #22
~24, create and display new display data,
Also displays a cursor.

In this way, when moving the cursor vertically, step #1
5, based on the preset vertical scroll amount,
Calculate the new screen display start line position.

Therefore, even when the entire pattern of the enlarged character protrudes from the display screen, one cursor movement operation scrolls the screen vertically by the amount that one screen continues, and the pattern in the middle of the character is visualized.

Next, the state of change of the display screen due to vertical movement of the cursor will be explained.

Figures 12 (1) and (2) are shown in the display state of Figure 11.

FIG. 6 is a diagram showing how the display range changes when the cursor is moved upward. In the drawing, ■' to ■' indicate the current cursor position, and D indicates the display screen.

When the cursor is actually moved up with one cursor movement operation, the display screen looks like this in FIG. 12 (1) and (2).

In the case of FIG. 12(2), since the character "4" is within the display screen area when the cursor position ■' is displayed, there is no need to change the screen.

However, screen scrolling is required to display the cursor positions ■' and ■'. That is, the character "2" at the cursor position ■' and the character "7" at the position ■' are outside the display screen, and moreover, the character "2" at the cursor position ■' in FIG.
does not fit within the displayable range on the display screen of FIG. 12(1), so position ■' will be the cursor position from now on.

In this way, by changing the display start position according to the standard scroll amount and repeating such operations, the entire pattern of one character "2" is displayed.

Similarly, when the cursor is actually moved up with one cursor movement operation, the display screen becomes as shown in FIG. 13 below.

Figures 13 (1) and (2) are diagrams showing how the display range changes when the cursor is moved up, in the same display state as in Figure 11. The cursor position, D, indicates the display screen.

In the case of FIG. 13(1), when the cursor position ■' is displayed, the character "u" is within the display screen area, so there is no need to change the screen.

However, screen scrolling is required to display cursor positions ■′ and ■1, and furthermore, the character rBJ at cursor position ■1 in FIG. 11 is displayed on the display screen in FIG. 13 (2).
Since it does not fit within the displayable range, the position
becomes the cursor position from now on.

In this way, by changing the display start position by the standard scroll amount and scrolling by a certain amount, it is possible to make one character fully visible by performing a plurality of cursor movement operations.

As described above in detail, the present invention includes an input device, a display device, a text editing means for creating one document text, an enlarged character means for enlarging edited characters, a cursor display means, and each of these parts. In a conventional data processing device having a document creation function, the scroll control means controls the screen by a preset physical scroll amount so that the screen continues;
and cursor control means for controlling the next cursor position by a vertical movement allowance when the cursor moves horizontally, and when the primary cursor position protrudes beyond the screen of the display device, the scroll control means controls the preset position. When the cursor is moved horizontally by the scroll amount and characters with different enlargement factors are mixed in the line, the cursor control means controls the next cursor position within the range of the allowable movement amount.

Effects Therefore, according to the display device having the enlarged character display function of the present invention, even when the entire pattern of enlarged characters at a large magnification protrudes from the display screen on a relatively small scale display device, the vertical cursor position can be adjusted. The amount of movement of is controlled to a constant value,
Since it is stopped within the display area of the character pattern, the pattern in the middle of the enlarged character is displayed so as to be completely visible.

Additionally, when moving the cursor horizontally, the next cursor position is controlled to be within the displayable range, so even if the displayed line contains enlarged characters with different magnifications, it can be quickly moved to the target position. This significantly improves the operability when creating documents using a word processor or the like. This excellent effect can be obtained.

[Brief explanation of drawings]

FIG. 1 is a functional block diagram showing an embodiment of a main part of a display device having an enlarged character display function of a data processing device of the present invention, and FIG. 2 is an enlarged version of the present invention shown in FIG. 1. A flowchart showing the flow of main processing when switching one display screen in a display device having a character display function. FIG. 4 is a diagram showing an example of the displayable range of the screen. FIG. 4 shows an example of the storage state of character data when an attribute is attached to one character in the document text storage area 12 of the data processing device shown in FIG. Memory configuration diagram, FIG. 5 is a diagram showing an example of a display screen for explaining the relationship between a character pattern and a cursor position during operations such as deleting characters in a display device having an enlarged character display function. ) is the display screen before operation. (2) is a diagram showing a display screen after operation; FIG. 6 is a diagram showing an example of an enlargement designation screen in a display device having an enlarged character display function of the present invention. FIG. 7 is a diagram showing an example of a display screen for explaining the relationship between a character pattern and a cursor position during enlargement processing in a display device having an enlarged character display function of the present invention.
(1) is the screen before enlarging the character indicated by the cursor, (
2) is a diagram showing the screen after enlargement. FIG. 8 is a flowchart showing the main process flow when moving the cursor in the display device having an enlarged character display function of the data processing device of the present invention shown in FIG. 1; A diagram showing how the cursor position changes when the cursor is moved horizontally in a display state of enlarged characters in a display device having an enlarged character display function. FIG. FIG. 11 is a diagram showing an example of the requested cursor position when the cursor is moved vertically in a state where enlarged characters are displayed. FIG. FIG. 7 is a diagram showing an example of the relationship between the storage state of pattern data and the display range of one display screen, and the state of change in the display range when the cursor is moved vertically. Figures 12 (1) and (2) are in the display state of Figure 11. Figures 13 (1) and (2) show how the display range changes when the cursor moves up. Figures 13 (1) and (2) show how the display range changes when the cursor moves up, while also showing the display state in Figure 11. Figure shown. In the drawings, 1 is an input device, 2 is an input control circuit, 3 is a cursor movement circuit, 4 is a cursor position determination circuit, 5 is a scroll control circuit, 6 is a cursor display circuit, 7 is an enlargement magnification setting circuit, and 8 is a character enlargement circuit. 9 is an enlargement magnification setting display screen circuit, 1o is a text editing circuit, 11 is an independent word dictionary area, 12 is a document text storage area, 13 is a single character extraction circuit, 14 is a CG phone hundred area, and 15 is a text editing circuit. , 16 is a display screen moving circuit, and 17 is a display device. ;4-2f21 ``Cd ef 9 h''M ■' Naka 11 Diagram fragment, 2 Diagram (2) Monument 13 Diagram

Claims (1)

[Claims] An input device, a display device, a text editing device for creating document text, an enlarging character device for enlarging edited characters, a cursor display device, and a central processing unit for controlling each of these parts. In a data processing device having a creation function, there is a scroll control means that controls the screen by a preset physical scroll amount so that the screen continues, and when the cursor moves horizontally, the next cursor position is controlled by the vertical movement allowance. and a cursor control means for controlling the next cursor position beyond the screen of the display device, the scroll control means controls the scroll amount by the preset scroll amount, and when the cursor moves horizontally, the enlargement magnification is applied to that line. A display device having an enlarged character display function, characterized in that when different characters are mixed, the next cursor position is controlled by the cursor control means within the range of the movement allowance.