JPS5890692A - Display controller for character information 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 relates to display control of a character information processing device such as a text editing device.

Generally, when performing text editing control according to the document size in a text editing device, etc., the entire character information accommodated in A4 size or B4 size is projected on the display screen,
It is desirable to perform format control (editing control) according to the document size while looking at the display screen.

However, in order to project the entire text information group of A4.i or B4 size on the display screen as described above, a display device with a very large screen is required. For example, if the CRT display screen used is a display device with a size of 80 characters x 25 lines and 9 characters and a size of 10 characters/inch x 6 lines/inch, the A4 size is 210 x 297 m (8.27 x 11.69 inches). can be,
It was not possible to display an A4-sized image on one screen, so the only option was to reduce the size of the displayed characters.

Therefore, in the former case, the device is very expensive because it requires a large-screen display device, and in the latter case, the displayed characters are small, making it difficult for the operator to read the characters on a monitor etc. during character input operations. It caused a great deal of stress.

In view of the above-mentioned problems, the present invention displays characters in a size that is easy to read on a monitor etc. during character input operations, and when viewing the layout of the entire document size, one page is displayed on one screen. Character information is compressed and displayed in a pattern depending on the presence or absence of the character, and the layout of the entire document size can be seen by displaying the pattern.

In particular, the layout of the entire document size and the character information at the input position as a monitor when inputting characters are the same.
It is displayed on the screen, that is, a monitor display area is provided in a part of the screen so that the character information at the input position can be viewed while viewing the layout of the entire document size.

An embodiment of the present invention will be specifically described below. 1st
FIG. 1 is a block diagram showing the configuration of a character information processing device according to the present invention. In FIG. , is supplied to the editing control circuit 2.

The editing control circuit 2 is a circuit that controls an editing function generally known as a text editing device, edits according to a predetermined text format, and stores character information in the text memory 3.
are stored sequentially.

Reference numeral 14 denotes an input position indicating circuit, which is composed of, for example, a cursor counter, and stores information corresponding to the position of a cursor symbol to be displayed on the display screen. Then, in accordance with the operation of the cursor keys on the keyboard device l, the position information can be changed to the corresponding position information.

This position information is supplied to the address control circuit 4 of the text memory 8 and the CRT display device 12.

5 is a code signal for determining whether or not the character information stored in the text memory 3 is a space character, and for changing the determined plurality of characters into one pixel (plus the number of display pixels of the character). This is a circuit that generates

For example, as shown in FIG. 2, 2×3 display characters are displayed with or without a symbol S in a normal one-character section L.

In this figure, the first row, first column, row 1), the second row, second column (2-2), and the third row, first column (8-1)
The symbol S is displayed in the second column (8-2) to indicate that a display character is present there, and the second symbol in the first row is
The symbol S is not displayed in the column (1-2) and the first column (2-1) of the second row, indicating that no display character exists there. Then, each of the 2×3 matrices shown in FIG. 1 is made into 64 patterns, and a corresponding pattern is selected depending on the state of the characters in the matrix.

Then, information for one page of the document size specified in advance by the editing circuit 2 is converted into a code for selecting the pattern and introduced into the format memory 6.

The format memory 6 is read out by an address control circuit 7 which is controlled by a rask scanning circuit 13.

Reference numeral 8 denotes a pattern generation circuit which generates a corresponding pattern in response to input of a format code signal, and reads out and supplies the pattern in synchronization with rask scanning of the CRT display device 12.

A message memory 9 stores character information for one line at the input position, stores character information for the line designated by the input position designation circuit 14, and stores the character information for the row designated by the input position designation circuit 14.
It is read by an address control circuit IO controlled by a signal.

The information read from the message memory 9 is supplied to a character pattern generation circuit 11, which outputs a character pattern in synchronization with rask scanning and supplies it to a CRT display device 12.

The raster scanning circuit 18 is composed of a counter and the like controlled by a reference clock signal, and provides synchronization signals for horizontal and vertical deflection to the CRT display device 12, as well as a 7-ohm display period 20 of the display screen shown in FIG. A timing signal B is output for each pixel in the display, a timing signal A is output for each pixel in the character display period 21, and a timing signal C is synchronized with each dot within one pixel.

Next, the operation of the configuration shown in FIG. 1 will be explained.

First, character information regarding a sentence to be created is inputted from the keyboard device 1, and the character information is stored in the sentence memory 3 in advance.

Further, depending on the position of the cursor key, the page to be displayed in the text memory 3 and the line at the input position are designated. At this time, the input position is stored in the input position indicating circuit 14.

The character information specified above is supplied to the format code signal generation circuit 5, and the format code signal is stored in the format memory 6 in correspondence with the text. Information on the row designated by the input position designating circuit 14 is then stored in the message memory 9.

On the other hand, the raster scanning circuit 13 outputs the B signal when the scanning position of the CRT display device 12 is in the format display area 20 (FIG. 3). Therefore format memory 6
A code signal is outputted in synchronization with the raster scanning, and the pattern signal is read out by the pattern generation circuit 8 and the area of the display area 20 is displayed as shown in FIG.

Further, the scanning position of the CRT display device 12 is set to the display area 21.
During a certain period, the circuit 13 outputs the A signal, the character code is read out from the message memory 9 in synchronization with raster scanning, and the corresponding character pattern is derived from the character pattern generation circuit and displayed as shown in FIG. Ru.

The CRT display device 12 is supplied with input position information, and displays the input position by displaying a cursor mark at the corresponding character position in the format display area 20 or by pulling pixels corresponding to one character. . or,
In the display area 21, a cursor mark is displayed at the corresponding character position 22.

Therefore, the operator can tell where the input position is located in the document from this display.

When the cursor key is moved to the next or previous line, the information in the input position indication circuit +4 changes accordingly, and the corresponding line is moved from the text memory 3 according to this information. The character information is transferred to the message memory 9 again, and the document in the line at the operated position is displayed in the display area 21. Also, the format area? The cursor position of O also changes accordingly.

Note that another way of using the character display area 2o is to display operation (control) information for the operator. This allows the operator to identify whether the data is to be corrected, deleted, or printed.

As described above, the display control device of the present invention can display the entire layout of each document size in a predetermined symbol pattern that is easy to see, and also displays character information such as input position on a part of the screen displaying the symbol pattern. can be displayed on a monitor, and has the feature that both layout and monitoring can be performed using one display device.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the circuit configuration of the character information processing device according to the present invention, FIG. 2 is a diagram showing symbol patterns for layout display, and FIG. 3 is a diagram showing a specific display example of the device of the present invention. It is. 1: keyboard device, 2: nest control circuit, 3: text memory, 4 near address control circuit, 5: code signal generation circuit,
6: Format memory, 8: Pattern generation circuit, 9:
Message memory, 11: Character pattern generation circuit, +2
: CRT display device, 13: Raster scanning circuit, 14: Input position indicating circuit. Agent Patent Attorney Aihiko Fukushi

Claims (1)

[Claims] 1. In order to display the layout of a predetermined document size with predetermined symbols, a first memory means for storing character information for one page of the document size, and a a symbol pattern generation circuit for converting character information into a predetermined symbol pattern; and a character corresponding to a line at a designated input position or a character related thereto among the character information held in the first memory means. 4 second memory means for storing information; a character pattern generation circuit for converting character information from the second memory means into a character pattern; and a pattern signal from the symbol pattern generation circuit and a character pattern generation circuit. a display device for displaying the symbol pattern and the character pattern; and a display device for projecting both the symbol pattern/character pattern and the character pattern on the display surface of the display device. A display control device for a text editing device, comprising: control means for timing symbol pattern signals and character pattern signals to the device.