JPS5897738A - Display - Google Patents

Abstract

PURPOSE:To facilitate confirmation for the connection among the contexts in the direction of lines without impairing the layout of an original, by setting a larger number of characters equivalent to a line of sentences than the number of characters which can be displayed on a line of a display screen. CONSTITUTION:The number N of characters equivalent to a line of sentences to be displayed to an N register 331 of an RAM33 is stored, and the number M of lines of the sentences to be displayed to an M register 332 is stored. In such a case, writing is performed from an address A at the starting point to the diection X and in order of character codes. Thus the writing is performed again from the head of the 2nd line when the supplied character codes are counted up to the N-th character. Then the character codes are stored in a character code area 333 with exactly the same layout as an original. In other words, the number of characters which can be displayed on a line of a display screen is smaller than the number of characters which are set by a setting means, the sentence to be displayed in response to the output of a command means is shifted toward the line to be displayed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a display, and more particularly to an improvement in a display that displays a plurality of lines of text, such as a display that is used in a word processor or the like.

For example, a device that processes text, such as a word processor, is provided with a display device (eg, a CRT display) for displaying text currently being input through key operations or text read out from a floppy disk. Although such a display device can display multiple lines of text, the number of characters that can be displayed on one screen is fixed. That is, the number of characters (hereinafter simply referred to as characters) that can be displayed on one line and the number of lines that can be displayed on one screen are fixed. By the way, when creating a manuscript to be input into a word processor, the layout is not necessarily adjusted to the size of the number of display strokes. For example, if a display device can display 40 characters per line, the number of characters per line (including blank spaces) in the manuscript is 4.
It may be laid out with more than 0 characters. Text that was written on one line on such a floor ends up being displayed over multiple lines on Display VRII+. Therefore, the display is performed in a layout that does not match the layout of the manuscript, making it difficult to edit or correct the text. In particular, it becomes almost impossible to edit texts (such as mathematical formulas) whose meaning is difficult to understand unless they are displayed on a single line while looking at the display device.

This will be specifically explained with reference to FIGS. 1 and 2.

FIG. 1 is a diagram showing the layout of a manuscript before it is input into a word processor or the like. Further, FIG. 2 is a diagram showing the contents displayed on a conventional display device when a document as shown in FIG. 1 is input.

In the manuscript shown in Figure 1, each line of text (including blank areas)
is laid out in 17 characters. In contrast, a display device can display only 10 characters in one line. Therefore, what is one line of text in the original document ends up being displayed over two lines on the display device. therefore,
As shown in FIG. 1, in a document containing mathematical formulas, ruled lines, etc., it becomes almost impossible to grasp the original meaning from the content displayed on the display device. - Therefore, the main object of the invention is to provide a display device that can overcome the above-mentioned drawbacks.

To summarize, this invention provides a setting means that can set the number of characters for one line of a sentence stored in a storage means to be larger than the number of characters that can be displayed on one line of a display screen, and When the number of characters that can be displayed is smaller than the number of characters set by the setting means, the text to be displayed is moved in the line direction (so-called scrolling) in response to the output of the movement command means, and the text is This allows you to easily check the context connections in the row direction without damaging the layout.

The above objects and other objects and features of the present invention will become more apparent from the following detailed description with reference to the drawings.

FIG. 3 is a block diagram showing one embodiment of the present invention.

The key code output from the keyboard 1 is given to the microprocessor 3. For example, data file 2 is 7
It is used to read sentences stored in advance on a disk, etc., and its output is given to the microprocessor 3. This microprocessor 3 is, for example, CPLJ3
1, ROM32, and RAM33. ROM32kmG
*, for example, an operation program as shown in FIG. 8 is stored, and the CPU 31 operates according to this operation program. Further, the RAM 33 includes a storage area as shown in FIG. 5, for example. The character code read from RAM 33 is given to refresh memory 5 via data bus 4. This refresh memory 5 has addresses corresponding to character display positions on the display screen of the display 10 for displaying sentences. Then, the microprocessor 3 gives a write address to the refresh memory 5 via the address selector 6, and specifies the address where the character code is to be written.

The CRT controller 7 is used to control the display of the display 10, and provides a horizontal/vertical synchronizing signal to the display 10, and also provides an address for reading character codes to the refresh memory 5 via the address selector 6. In this way, the address selector 6 is given the character code write address from the microprocessor 3 and the character code read address from the CRT controller 7, but is also given an output switching signal from the microprocessor 3, and the output switching signal Ill III determines which address to output depending on the address. That is, when writing a character code to the refresh memory 5, the address selector 6 selects and outputs the address given from the microprocessor 3, and conversely, when reading a character code from the refresh memory 5, it selects and outputs the address given from the CRT controller 7. Select and output. Note that while the character code is written in the refresh memory 5, the display on the display 10 is stopped.

The character code read from refresh memory 5 by CRT controller 7 is given to font memory 8. This font memory 8 stores display pattern data for each character code.

Then, the font memory 8 outputs display pattern data corresponding to the character code given from the refresh memory 5, and supplies it to the parallel-to-serial conversion circuit [19]. This parallel-
The serial conversion circuit 9 converts the applied bit-parallel display pattern data into serial data, that is, a video signal, and supplies the serial data to the display 10.

In this way, the character code read from a certain address in the refresh memory 5 is displayed at the corresponding character display position on the display 110.

FIG. 4 is a key arrangement diagram of the keyboard 1 shown in FIG. 3. In the figure, a keyboard 1 includes character keys 101 for inputting various characters, a numeric keypad 102 for inputting numerical information, and various function keys 104.

Note that the function key 104 is a bank staff setting key 104a for setting the number of characters per line of text to be displayed on the display $110 (including blank space), and a bank staff setting key 104a for setting the number of lines of text to be displayed on the display 10. Line number setting key 1 for
04b. That is, when the numeric keypad 102 is operated after the bank employee setting key 104a is operated, the numerical information inputted by the numeric keypad is stored in a predetermined area of the RAM 33 (7), and the number of characters for one line of text to be displayed is This number of characters can be set to exceed the number of characters that can be displayed in one line of Display! 110, for example, the number of characters in one line of the original before input as shown in Figure 1. is set as is.Similarly, line number setting key 1
When the numeric keypad 102 with 04b is operated,
Numerical information entered using the numeric keypad 102 is stored in the RAM 3.
3, and the number of lines of text to be displayed is set. The number of lines can be set to exceed the number of lines that can be displayed on the display B140, and for example, the number of lines of the document as shown in FIG. 1 is set as is.

Furthermore, the keyboard 1 includes cursor movement keys 103. This cursor movement key 103 is a key for moving the cursor mark displayed on the display 10 to an arbitrary character display position, and cursor keys 103a and 10 for moving the cursor mark in a direction perpendicular to the line direction of the text.
3b, and cursor keys 103G and 103d for moving the cursor mark along the line direction of the text. These cursor keys 103a to 103d are used to specify character input positions, editing points, and correction points on the display screen of the display unit 10, but the cursor keys 1030 and 103d are used to scroll along the line direction of the displayed text. It is also used as a scroll command key for issuing commands.

FIG. 5 is an illustrative diagram showing the storage area of the RAM 33 shown in FIG. In the figure, the RAM 33 is the bank employee setting key 104a.
Number of characters for one line of text to be displayed set by (
N> storage area (hereinafter referred to as N register) 331
and an area (hereinafter referred to as M register) 332 for storing the number of lines (M) of text to be displayed set by the line number setting key 104b. Further, the RAM 33 includes an area (hereinafter referred to as character code area) 333 for storing character codes input by the character keys 101 or read from the data file 2. This character code area 333 contains 4 of the characters that can be displayed on the display 10.
It has the capacity to store and repeat twice as many character codes. That is, it is possible to store twice as many character codes as the characters that can be displayed on one line of the display 10 in the X direction shown in FIG. Then, it is possible to store twice the number of lines of text that can be displayed on the display 10 in the Y direction shown in FIG. Here, in the character code area 333, the area allocated for storing character codes changes depending on the storage contents of the N register 331 and the M register 332. For example, N(
If the number of characters for one line of text to be displayed is stored, and M (the number of lines of text to be displayed) is stored in the M register 332, in the character code area 333, the number of characters for one line of text to be displayed is stored in the X direction starting from address A. Storage area for N characters is allocated and Y
A storage area for M rows is allocated in the direction.

When writing character codes into the memory area allocated in this manner, the character codes are written sequentially in the X direction from address A as the starting point. When the input character code reaches the Nth character, writing is performed again from the beginning of the second line. That is, character codes are stored in the character code area 333 in exactly the same layout as the original.

FIGS. 6 and 7 are diagrams showing examples in which sentences inputted based on the manuscript shown in FIG. 1 are displayed on the display aio. Further, FIG. 8 is a flowchart for explaining the operation of the embodiment of FIG. 3.

The operation of the embodiment of the present invention will be described below with reference to FIGS. 3 to 8.

First, before displaying the text, one of the texts to be displayed is selected using the bank employee setting key 104a and the line number setting key 104b
It is assumed that the number of characters for a line N (17 characters in FIG. 11) and the number of lines M are set, N is stored in the N register 331, and M is stored in the M register 332.

Here, a description will be given of the operation when a character code is input from the character key 101 shown in FIG. 4, and characters are displayed on the display 10 accordingly.

In this case, in step 1 (abbreviated as S in the illustration) of FIG. 8, the key force from the keyboard 1 is determined, in step 2 it is determined that the key force is not a scroll command key, and in step 2a, the key force is It is determined that the key is a character key. And step 2b
Now, the input character code is in the character code area 333.
and written to the refresh memory 5. Subsequently, in step 3, the number of input characters is incremented by one. Next, in step 4, it is determined whether or not the character code has been written to the end of the line in which the character code is currently being written among the plurality of lines of storage area of the refresh memory 5.

In this embodiment, a code meaning a blank space is entered for each character even in a blank area where no characters are displayed, and the character code includes a code meaning such a blank space. If the character code has not been written to the end of the row in the refresh memory 5, the number of characters counted in knob 3 of step 5 will be stored in the N register 33.
It is determined that the number of characters stored in 1 is smaller than N,
In step 6, the text is displayed statically, and the operation in step 1 is performed again.

On the other hand, in the above step 4, the refresh memory 5
If it is determined that character codes have been written to the end of the line containing , no further character codes can be written to that line.

Therefore, in step 7, the text to be displayed is scrolled by a predetermined number of characters along the line direction.

For example, this scroll is displayed as shown in FIG.
When characters are displayed in order from the left end of 1m, the text input so far is scrolled to the left of the screen.

Here, this color roll will be explained in more detail. In CPLJ31, the text from the number character to the number character in the character code area 333 is always refreshed in the memory 5.
It remembers what is written in it. For example, it is assumed that the display device 10 stores character codes from the first character to the tenth character in the character code area 333 in the memory 5 with 10 characters per line. At this time, the CPU 31 stops displaying the display W10, and
The character codes from the 1st character to the 11th character are read and all contents of the refresh memory 5 are rewritten. That is, at this time, the character code area 33 is stored in the refresh memory 5.
The character codes from the 2nd character to the 11th character of 3 are stored. After that, the CPU 31 turns on the display 10 to display the text from the second character to the 11th character. After a predetermined period of time, the display on the display 10 is stopped again, and the refresh memory 5 is rewritten with the character codes from the 3rd character to the 12th character in the character code area 333. Then, the display 10 is turned on again. This series of operations is repeated a predetermined number of times (for example, five characters). Since there is an afterimage phenomenon in the human eye, if the refresh memory 5 is rewritten quickly, the refresh memory 5 can be rewritten within seconds.In this case, there is no need to stop the display 10 and the flicker can be eliminated. It can be completely eliminated.

Next, in step 8 of FIG. 8, the character code stored in the refresh memory 5 is statically displayed on the display 10.

Next, a case will be described in which it is determined in step 5 that the number of characters counted up in step 3 matches N. In this case, the character count is cleared in step 9, and the display ai is cleared in step 10.
The displayed text of o is scrolled along the line direction. The scrolling in step 10 is performed by scrolling rightward on the display screen shown in FIG. 6, for example. Note that this scrolling operation is performed in the exact opposite manner to the left scrolling in step 7 described above, but since such an operation will be easily understood, its explanation will be omitted. Step 1
After the frame 0- is completed, the refresh memory 5 stores the character codes of the character code area 333, for example, from the first character to the tenth character, and the display 10
The text from the first character to the tenth character of the manuscript is displayed. Next, in step 11, the cursor mark is returned to the beginning of the next line. As a result, character codes are written into the character code area 333 starting from the first character of the next line.

Next, a description will be given of the operation when reading an already created text from the data file 2 and displaying it on the display 1110. In this case, the cursor mark is moved to a predetermined character display position using the cursor keys 1038 to 103d in order to specify the edit or correction location, but the cursor mark is moved to the beginning or end of the line using the cursor keys 1030 or 103d. At this time, a movement command from the cursor key 1030 or 103d is processed as a scroll command. That is, in step 2, a scroll command by the cursor key 1030 or 103d is determined, and in step 12, the displayed text is scrolled. In this step 12,
When the cursor mark is moved to the beginning of a line, the displayed text is scrolled to the right in FIG. 6, for example. Conversely, when the power mark is moved to the end of the sentence, the displayed sentence is scrolled to the left, as shown in FIG. 6, for example.

Next, in step 13, the text is displayed statically, and the operation in step 1 is performed again.

As described above, according to the present invention, when the number of characters that can be displayed in one line of the display screen is smaller than the number of characters set by the setting means, the text to be displayed is moved in the line direction in response to the output of the command means. As a result, if one line of text to be displayed is longer than one line on the display screen, it will not be displayed over multiple lines as in the past, and it will be easier to see the connections between the contexts in the line direction and the characters between the lines. Positional relationships can be clearly recognized.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing a manuscript in which text to be displayed is written. FIG. 2 is a diagram showing the text of FIG. 1 displayed on a conventional display device. FIG. 3 is a block diagram showing one embodiment of the present invention. FIG. 4 is a key arrangement diagram of the keyboard 1 of FIG. 3. FIG. 5 is an illustrative diagram showing the storage area of the RAM 33 in the diagram. 6 and 7 are diagrams showing sentences such as those shown in FIG. 1 displayed in the embodiment of FIG. 3. FIG. 8 is a flow chart for explaining the operation of the embodiment shown in FIG. In the figure, 1 is a keyboard, 3 is a microprocessor, 10 is a display, 101 is a character key, 103a to 1
03d is a cursor key, 104a is a bank employee setting key, 33
3 indicates the character code area. Agent Shin Kuzuno - (1 other person) Figure 2 Figure 6 Wharf Figure 7

Claims (4)

[Claims] (1) A display device including a display screen capable of displaying multiple lines of text, the display screen having a fixed number of characters that can be displayed in one line, and storing the text to be displayed. storage means; setting means capable of setting the number of characters for one line of the text stored in the storage means to be larger than the number of characters that can be displayed on one line of the display screen; a command means for commanding movement in the row direction, and when the number of characters that can be displayed on the display screen is smaller than the number of characters set by the setting means, the text to be displayed is configured in response to the output of the command means; A display device comprising a display control means for moving in a row direction and displaying on the display screen. (2) includes an input means for inputting a sentence to be displayed in character sequence; the storage means includes means for storing the sentence input by the input means; and the display command means inputs the input means for each line. 2. The display device according to claim 1, further comprising means for generating said movement command when the number of characters input from said character exceeds the number of characters that can be displayed on one line of said display screen. (3) The method according to claim 1, further comprising means for displaying a mark at an arbitrary display position on the display screen, and wherein the command means includes means for generating the movement command in relation to the movement of the mark. The display device according to item 2. (4) The display control means according to any one of claims 1 to 3, wherein the display control means includes means for moving the text to be displayed in the line direction by a predetermined character in response to the output of the command means. Display device.