JPH0682358B2 - Document editing device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a document editing apparatus having a function of inputting and editing a document, such as a Japanese word processor. The present invention relates to a document editing device having a function of displaying a document layout by using the document editing device.

BACKGROUND OF THE INVENTION Generally, a document editing apparatus includes an input unit for inputting characters and symbols, a display unit for displaying characters and symbols input by the input unit or an edited document, a control program, a prepared document, and the like. It is roughly divided into a temporary storage unit that stores information, a printing unit that prints a document created on paper, and a control unit that includes a computer that controls these units. The functions required by this document editing apparatus are mainly inputting a document, editing the input document, and saving and printing the created document.

By the way, generally, it is efficient to edit or rearrange a created document while checking the arrangement and balance of the document on the entire page.

Therefore, in the conventional document editing apparatus, in order to confirm the layout, balance, etc. of the created document, a display device for displaying the layout of one page of the document (hereinafter referred to as layout) is provided separately from the display device for displaying the document. There is one provided.

However, this requires a display device for displaying a document and a display device for displaying a layout, and thus has a problem that the display device becomes complicated and expensive.

Further, this prior art does not consider the layout display of the character pattern created by the user which is not stored in the storage device.

The layout display is a character pattern smaller than a normal character pattern, but if all the character patterns of different sizes are stored in advance in the storage device provided in the main body of the device, the layout display can be performed quickly. Although it can be performed, it requires a storage capacity corresponding to different sizes, resulting in a large-sized storage device.

In addition, since the characters used in normal document creation are limited, it is wasteful to store all of the above-mentioned characters, including characters that are rarely used, in the storage device in advance.

Conventionally, the technical idea of layout display using reduced characters is known from the invention described in JP-A-56-114992.
However, since the conventional layout display adopts the code refresh method, a large amount of memory is required when creating and using the reduced character pattern. For example,
When using 1/3 reduced characters, 9 times the memory is required for the entire screen. When creating multiple character patterns with different reduction ratios, it is necessary to further increase the memory by the number of different reduction ratios. In addition to this, even if the user-created character patterns are reduced and displayed, more memory is required. And lacks in practicality.

Further, if the layout display is performed using reduced characters, the processing speed of the memory and the control unit must be increased according to the reduction rate, which is also impractical.

[Object of the Invention]

Focusing on the above points, the present invention enables layout display while confirming the document contents to improve the document creation work, and sets the reduced character layout display and reduction ratio including the character pattern created by the user. Alternatively, it is an object of the present invention to provide a document editing apparatus that is highly feasible and simple in design by making changes by a simple processing method.

[Outline of Invention]

The object of the present invention is, in particular, a storage device that stores a character pattern created by a user, a reduced character of both the character pattern stored in the storage device and the character pattern stored in the nonvolatile memory. A dot refresh memory for storing a pattern is provided, and the display control means is configured to display a reduced user-created character pattern on the display by the dot refresh memory when displaying in a layout display format. To be done.

Example of Invention

An embodiment of the configuration of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the document editing apparatus of the present invention includes a device main body 121 having a temporary storage unit, a display unit, and a control unit, a keyboard 122 as an input unit, and printing as shown in FIG. It has a printer 124 as a unit. The main body 121, the printer 124, and the keyboard 122 are connected by a cable 130, respectively.
And 131, control signals and information signals are exchanged.

A control unit 100 as a control circuit shown in the block diagram of FIG. 2 is housed in the device main body 121. The control unit 100 stores a program storage type computer unit (hereinafter referred to as CPU) 301, a boot ROM 302 including a non-volatile memory and a program to be executed at power-on, a program and information for executing a function as a document editing device. Program memory that can be continuously written to at any time
303, part of which has non-volatile raw memory and part of which has continuous writable memory at any time. In the non-volatile memory, dot data (hereinafter referred to as a character pattern) representing a character of 24 × 24 dot matrix used for normal document display (hereinafter referred to as a character pattern) is stored as a character and a symbol code,
A first character generator (hereinafter referred to as CG1) having this non-volatile memory section and a memory section for reading and storing character patterns from a flexible disk set in 125 flexible disk devices (hereinafter referred to as FDD) as needed 304), which is created in advance in a one-to-one correspondence with the character patterns stored in the non-volatile memory part of the CG1, and is an 8 × 8 dot matrix character for layout display with the characters and symbol codes as indexes. A second character generator 312 (hereinafter referred to as CG2) that stores patterns is stored.

The control unit 100 further includes a pattern conversion circuit 500 having an algorithm for converting the dot matrix shown in FIG. 11 into the dot matrix shown in FIG. 12, a character etc. to be displayed on the CRT 123 for displaying (displaying) a document or the like. Code refresh memory 310 and dot refresh memory 311, which stores information and can be read and written at any time, reads dot data from the character generator 304 according to the character code read from the code refresh memory 310 according to a command from the CPU 301. Dot data from the dot refresh memory 311 CRT controller 305 that converts the data into a read video signal and sends it to the CRT 123 together with the synchronization signal, a flexible disk control circuit (hereinafter referred to as FDC) 306 that controls the FDD 125 according to the command of the CPU 301, and a signal that controls the printer 124 according to the command of the CPU 301 Send signal to printer 124 The printer controller 307, which receives the signal indicating the status of the printer 124 that has been output from the printer 124 and sends it to the CPU 301, the CPU
Keyboard 12 is controlled according to the instruction of 301
A key input controller 308 that sends an input signal from the CPU 2 to the CPU 301, and the CPU 301, boot ROM 302, program memory 303, code refresh memory 310, character generator 304, dot refresh memory 311, CR
The T controller 305, the CRT 123, the FDC 306, the FDD 125, the printer controller 307, and the internal wiring 309 connecting the key input controller 308 are provided.

On the front surface of the device main body 121, a CRT 123 as a display unit and an FDD 125 as a temporary storage unit are installed.

A detailed configuration of the pattern conversion circuit 500 is shown in FIG. 501 ~
503 is an 8-bit register that temporarily sets the conversion input, 504 is a quaternary counter that selects a register and gives a write signal, 505 is a bus driver that calls the result obtained in the 8-bit register of 507 to the CPU, 506- Reference numerals a to h are OR gates that take the logical sum of each bit of the 8-bit register data of 501 to 503. Reference numeral 507 is a register for storing the ORed result.

Now, when the power is turned on with the above configuration, the boot ROM 302
The program stored in the flexible disk in the FDD 125 is executed according to the program in the program, and the program for executing the flow of FIG. 3 is moved into the program memory 303, and the document editing function is operated according to the program. Here, the auxiliary function is a general term for a function in which functions for copying a document in a flexible disk to another flexible disk are integrated.

When the input process or the edit process is selected by the work selection input, the input process program or the edit process program according to the flow of FIG. 4 or 5 is executed. The document being input or edited is displayed on the CRT 123 by the code refresh method using the code refresh memory 310 according to the input or edit processing program in the program memory 303 according to the flow of FIG. 4 or FIG. Is displayed.

A command for processing associated with the character input or edit to the document is input from the keyboard 122 and detected by the CRU 301 via the key input controller 308. The CPU 301 follows the input and changes the character code of the input character to the code refresh memory 310.
The input character is displayed on the CRT 123 or the character code in the code refresh memory 310 is changed according to the instructed editing process to change the display document on the CRT 123. At this time, the CPU 301 sets the program memory 303
The document information in the portion in which the document information is stored (called a document buffer) is also changed.

By the way, in the document processing function, there are about 8,000 kanji, symbols, etc. that must be prepared, but half of them are old characters and the frequency of use is low. Frequently used Kanji characters are always stored in the 304 CG1 non-volatile memory,
Infrequently used Kanji characters and character patterns created by the user as needed are usually stored in the flexible disk set in the FDD125, and when necessary for display, the CG1 of 304 is continuously written at any time. Called into available memory and used.

When a layout display command is input from the keyboard 122, the CPU 301 detects a layout display execution command via the key input controller 308, and the CPU 301 stores the layout shown in FIG. Run the display program. When the layout display processing is started, the CPU 301 gives a command to the CRT controller 305 to erase the code refresh memory type document display by the input processing or editing processing program of FIGS. 4 and 5 from the CRT 123. Next, the dot refresh memory 311 is initialized, and the CPU 301 makes the CRT controller 30
Nothing will be displayed on the CRT123 even if the 5 command to display by the dot refresh memory method is issued. After this process is completed, the contents of the dot refresh memory 311
A command is given to the CRT controller 305 to display on the RT123, and the contents of the dot refresh memory 311 are displayed on the CRT123. Next, the character code is sequentially read from the document buffer in the program memory 303, and when the layout is displayed, it is checked that the character pattern is in CG2 of 312 based on the display position information of the character and the character code, and if there is,
One reduced character pattern is read from CG2 312 and written in the dot refresh memory 311 at the corresponding position.

Here, the character pattern dot refresh memory 311
Writing to the first character built into the character generator 1 of 304 or the character generator 2 of 312
Write the dot matrix character pattern shown in Fig. 1 or Fig. 12 as it is or with reduced conversion while keeping its square shape, and write it in the dot refresh memory 311 with bit correspondence according to the positional relationship shown in Fig. 9. Is.

If the character code is not in CG2 of 312, the character is 30
Since it is read from the flexible disk to the CG1 4 readable / writable memory section at any time, the CPU 301 calls the character pattern and generates the 8 × 8 character pattern by the pattern converter of 500, and similarly to the above, the dot refresh memory. Write to the appropriate position in 311.

This processing is performed by the CPU 301 using the pattern converter to execute the reduced character writing processing program having the flow of FIG. The reduced character writing processing program generally uses km × jn as shown in FIG. 9 using 500 pattern converters.
Character pattern D represented by the dot matrix of DR (x, y) = D (kx, jy) + D (kx + 1, jk) + ... + D [k (x + 1) -1, jy] + D (kx, jy +
1) + ... + D [k (x + 1) -1, jy + 1] ... + D [kx, j (y + 1) -1] + ... + D [k (x + 1) -1, j (y + 1) -1] (however , + Indicates a logical sum.) According to the algorithm indicated by (1), a process of reducing to a m × n character pattern DR and writing the reduced character pattern to a corresponding position in the dot refresh memory 311 is performed.

In the present embodiment, the constants in the conversion formula are set as j = k = 3 m = n = 8, and the reduced character writing processing program according to the flow of FIG. Character patterns displayed in a matrix pattern of × 24 dots are continuously output from the character generator 304 by three lines each, and the character patterns are represented by three dots in vertical and horizontal directions as shown in FIG. ) = D (3x, 3y) + D (3x + 1,3y) + D (3x + 2,
3y) + D (3x, 3y + 1) + D (3x + 1,3y + 1) + D (3x + 2,3y + 1) + D (3x, 3y + 2) + D (3x + 1,3y + 2) + D (3x + 2,3y + 2) Logical "1"].

The pattern converter 500 having the function of converting to 1 dot is successively used to make a reduced pattern for 1 line, and this is repeated to produce a reduced pattern for 1 character.
Write to dot refresh memory 311 and write the first on CRT123.
The reduced characters of the dot matrix pattern of 8 × 8 dots shown in FIG. 2 are displayed. The reduction rate is j =
It is determined and selectable by arbitrarily setting the values of k and m = n.

This process is repeated until the layout display for one page is completed, and the layout with reduced characters is displayed on the CRT 123.

When the layout display for one page is completed, it is selected whether or not the edit processing is performed on the layout display screen, and when the edit processing is performed, a command of the edit processing on the document display screen by the code refresh method is input, Update the contents of the document buffer. The flow of the editing processing program is shown in FIG. It is determined whether the command input from the keyboard 122 corresponds to character deletion and correction, movement, format change, or document layout change in the editing process, and the respective processes are performed. If none of them match, return to the instruction input of the edited content and have a new instruction.

In the case of character deletion, when the keyboard 122 is used to specify the deletion range, the CPU 301 deletes the corresponding character code in the buffer according to the program and rearranges it to a new character code.

For correction, the keyboard 122 is used to indicate the correction range and the characters to be corrected are input, and the CPU 301 replaces the corresponding character code in the document buffer with the new character code according to the program and arranges the character codes in the document buffer newly. Frog.

In the case of movement, when the range of movement character string and the movement destination are designated from the keyboard 122, the CPU 301 moves the character code in the document buffer according to the program and rearranges it to a new character code.

In the case of changing the format, when a new format is designated from the keyboard 122, the CPU 301 rewrites the format information in the document buffer according to the program.

In the case of changing the layout such as setting a frame or setting an input prohibited area, when an instruction for a new layout is input from the keyboard 122, the CPU 301 rewrites the frame opening information and the display prohibited area information in the document buffer according to a program.

In this way, the character code in the document buffer is rewritten with new document information.

When the editing process is completed, the process returns to the character display start point of the layout display program as shown in the flow of FIG.
Display on CRT123.

When the editing process is completed or not performed, the layout display is continued until the layout display end instruction, and when the layout display is completed, the CPU 301 stops the dot refresh method display on the CRT controller 305 and displays the code refresh method. , And returns to the input processing or editing processing program.

By using the document editing apparatus having the above-mentioned configuration and operating, the characters on the layout display screen can be read as shown in FIG. 12 instead of the conventional alternative symbols such as “*” and “★”. It can be displayed as a character.

However, not all characters are legible when the 24 × 24 dot character pattern is reduced to 8 × 8 dots. However, in reality, hiragana, katakana, numbers, etc.
Almost all of the characters with relatively small shaded areas in the 24 × 24 dot pattern in FIG. 11 can be read with only one character after reduction conversion, and are semi-voiced characters such as “bo” and “po”. It is somewhat difficult to distinguish between and the voiced characters. However, the probability that these semi-voiced characters and voiced characters appear in the document is low, and even if they appear, they can be read according to the context of the document.

In addition, the reduced characters obtained by reducing and converting the kanji are
20% to 30% can be read with only one character from the font as shown in Fig. 12. Considering that the probability of Chinese characters appearing in a document is 30 to 40%, it can be estimated that about 60 to 70% of the characters in the document are legible.
Considering that the characters that can be read with only one character appear in succession in the reduced document, and even if they do appear, almost all of them can be read according to the context, the book It can be concluded that the document on the layout display screen according to the embodiment is legible.

Therefore, when the layout of the document is displayed by the reduced characters, the document displayed on the layout display screen can be read and the character arrangement can be confirmed according to the content of the document. Further, since the contents of the document can be read on the layout display screen, the above-mentioned FIG. 6, FIG. 7, and FIG.
By the program having the flow as shown in the figure, editing processing such as correction, insertion and movement of a document can be performed on the layout display screen.

Furthermore, since the layout display processing time was processed by the circuit in FIG. 13 for the generation of the reduced character pattern as shown in FIG. 12,
Processing time is greatly reduced.

In this way, the present invention displays the layout by the dot refresh display method, so that the character memory that is not stored in the non-volatile memory such as characters that are not often used or character patterns created by the user is increased. It can be displayed as a reduced character pattern without.

Further, since the dot refresh memory stores the characters displayed on the entire display screen as dot information, a new processing speed is not required even if the size of the characters to be displayed changes.

As described above, the document editing apparatus of the present invention can reduce the time required to complete the layout display using reduced characters and can be put to practical use.

Further, if the reduced character pattern for layout display is an 8 × 8 dot pattern as in this embodiment, the JIS 1st level 3418 character pattern has a 256K-bit mask ROM1.
It can be stored individually, and the area occupied by the character generator that stores the character patterns for layout display can be small, and even when it is added to the control circuit of the existing document editing device, the effect can be minimized. is there.

As a modification of the present invention, it is conceivable to store a 12 × 12 dot pattern as a layout display pattern in the character generator in addition to the 8 × 8 reduced character pattern. According to this, the characters on the layout display screen are easier to read than in the present embodiment.

In addition, as the configuration of the character generator for the layout display, in addition to the ROM, which is a non-volatile memory in which the contents are saved even when the power is cut off, as in the present embodiment, a RAM that can be written and read at any time Can be considered.
In the case of the ROM as in the present embodiment, the later-described character pattern writing operation which is necessary in the latter when power is turned on is unnecessary, and the processing when power is turned on is simpler than in the latter case. However, in the latter case, the character pattern can be rewritten as compared with the former, the number of reduced character patterns is not limited, and the character pattern created by the user can be reduced.

If the layout display character generator is configured with a memory that can be read and written at any time, it is necessary to write the layout display character pattern to the character generator when the power is turned on. The reduced pattern is written to the layout display character generator, and the 24 × 24 dot character pattern stored in the normal display character generator is reduced by the reduction conversion circuit and written to the layout display character generator. A method can be considered.

In the former case, the layout display character pattern can be changed by converting the flexible disk, and in the latter case, it is not necessary to prepare the layout display character pattern in advance.

The writing process of the character pattern to the character generator 2 of the layout display character generator 312 is performed by the layout display character pattern writing process program by using the pattern converter 500 and performing the same process as in FIG. Be done.

〔The invention's effect〕

As described above, according to the present invention, in particular, both a storage device that stores a character pattern created by a user, a character pattern stored in this storage device, and a character pattern stored in the non-volatile memory. And a dot refresh memory for storing a reduced character pattern in which the dot matrix is reduced by a predetermined calculation method at any time, and the display control means displays a reduced user-created character pattern when displaying in a layout display format. Since it is configured to display on the display unit with a dot refresh memory, layout display can be performed while checking the document contents to improve document creation work and reduced character layout display including character patterns created by the user. And reduction ratio can be set or changed by a simple processing method, which is highly feasible. , In which and design it can also provide a simple document editing device.

[Brief description of drawings]

FIG. 1 is an external view of a document editing device to which the present invention is applied, and FIG.
FIG. 4 is a block diagram of a control device of the document editing apparatus, FIG. 3 is a flowchart showing an operation program of the document editing apparatus to which an embodiment of the present invention is applied, and FIG. 4 is a detailed flowchart of input processing of the flowchart of FIG. FIG. 5 is a detailed flowchart of the editing process of the flowchart of FIG. 3, FIG. 6 is a detailed flowchart of the layout display process of the flowcharts of FIGS. 4 and 5, and FIG. 7 is a flowchart of the layout display process of FIG. FIG. 8 is a detailed flowchart of the reduced character writing process, FIG. 8 is a detailed flowchart of the layout editing process of FIG. 6, FIGS. 9 and 10 are explanatory diagrams of a conversion method for reducing conversion of character patterns, and FIG. 11 is 24 × 24.
FIG. 12 is a dot character pattern diagram, FIG. 12 is a layout display character pattern diagram of the character pattern of FIG. 11, and FIG. 13 is a pattern conversion circuit diagram. 121 …… Main body, 122 …… Keyboard, 123 …… CRT, 124…
… Printer, 125 …… FDD, 301 …… CPU, 302 …… Boot R
OM, 303 ... program memory, 304 ... character generator 1, 305 ... CRT controller, 306 ... FDC, 30
7 ... Printer controller, 308 ... Key input controller, 310 ... Code refresh memory, 311 ... Dot refresh memory, 312 ... Character generator 2, 500 ... Pattern conversion circuit, 501-503 ... 8-bit register, 504 ... Quaternary counter, 505 ... Bus driver, 506 ... OR gate, 507 ... 8-bit register.

Claims (1)

[Claims] 1. An input device for inputting characters, symbols and the like, a character pattern stored in a non-volatile memory incorporated in the main body of the device, and a document editing process for editing the characters, symbols and the like input by the input device. Means, a display device for displaying the document edited by the document editing processing device input by the input device, and dots having a normal size for displaying the document edited by the editing processing device on the display device. A storage device for storing a character pattern created by a user in a display control means for displaying in a document display format using a character pattern according to a matrix size and displaying in a reduced character layout display format,
Provided is a dot refresh memory for storing a reduced character pattern in which the character pattern stored in the storage device and the character pattern stored in the non-volatile memory are reduced in advance or at any time by a predetermined calculation method. The display control means, when displaying in a layout display format,
Document editing apparatus for displaying a reduced user-created character pattern on the display by means of a dot refresh memory