JPS6027583A - Controlling system for micro-spacing - Google Patents

Abstract

PURPOSE:To make proper character spacing and print with high quality, by a method wherein a total width of a group of characters contained in a predetermined line is calculated from the widths of inputted characters, then the maximum line length is detected therefrom, and is made to be a printing width for one line. CONSTITUTION:When character code data W are inputted through a keyboard or the like, the width of the character is determined by a character width table 1, and is added in an adder 3. When an input of a word end indicating character (a space, a hyphen or the like) is supplied to a detecting circuit 2 for the word end indicating character, the content (W1) of the adder 3 is added in an adder 6. At this moment, the adder 3 is reset. When it is discriminated by a line end detecting circuit 5 that transfer to the next line should be conducted, a maximum line length detecting circuit 8 receives the content (W) of the adder 6, and stores it. At this moment, the adder 6 is reset. These operations are performed until the last line in a page is detected by a last line detecting circuit 7. When the last line is detected, the detecting circuit 8 detects the maximum line length (MAX) from the line lengths thus stored, and sets the maximum line length as the printing width for one line.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a printing method in an English word processing device and the like, and particularly to a microspacing management method for obtaining high quality printing.

(Prior art) (JT) In a word processing device that is equipped with a keyboard and that edits and creates text information stored in an external memory, for example an English word processing device, the input of nine sentences and one word is performed using a CRT. This is done using the keyboard while the entire sentence is completed, and then printed by the printer.In such word processing devices, in order to achieve high quality printing using a printer with a daisy wheel, the right edge of each line is printed aligned. Right-aligned printing is generally performed.Also, depending on the print book used, the width of each character may be finely adjusted and placed.
Some printers are capable of high-quality printing by performing so-called proportional spacing.

In right-aligned printing, since input is performed using a CRT, it is necessary to predetermine how many characters the width of the - line should be, and when a manually entered word exceeds the width of that line, it is automatically input. A method is adopted in which the word is automatically moved to the next line.

Generally, characters on a CRT have a fixed width, so in many cases, the width of one line can only be defined as "how many characters" at the time of input. In this way, when a completed sentence is printed with proportional spacing by specifying the line width by the number of characters, it is difficult to set the print width.

In other words, in order to fine-tune the spacing between each character using a proportional spacing print wheel and to print right-aligned characters, a so-called micro-spacing wheel is used to adjust the spacing between words. Spacing is necessary, but in order to determine the amount of space between each word, the print width of one line by the printer must be determined. However, the print width of one line, which is determined when creating a text, is only the number of characters. In this, the print wheel for proportional spacing is by letter.

- Since the width per character differs, the printing width varies depending on which character width is used as a reference to determine the printing width of the - line. If an average character width is adopted, there may be no space available at all in a line in which wide characters such as rmJ are frequently used. Also,
If the printing width is determined based on the maximum character width, there will be too much space in a typical line, resulting in printing that is "too white" as a whole.

(Objective) The object of the present invention was to eliminate such drawbacks, and to provide a microspacing management method that can set the printing width for a line to an appropriate value and perform high-quality printing. It is about providing.

(Example) Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 shows an example of a circuit configuration for realizing the present invention. In the flash, character code data W input from a keyboard or the like is supplied to a character width table 1 and a break character detection circuit 2. The character width table 1 is, for example, a ROM or RAM that uses a character code as an address and stores the character width corresponding to the character code. In the character width table 1, when a character code data W is supplied, the character width corresponding to the character code is searched. The retrieved character width data is supplied to the adder 3. The adder 3 sequentially adds the input character widths.

The break character detection circuit 2 detects whether the supplied character code data W is a predetermined break character code (space code) or a tongue. That is, it is detected whether the input of the character group constituting the - word has been completed. When a break character code is detected, a detection signal 2 is sent from this detection circuit 2.
S is supplied to the gate 4 and the end of line detection circuit 5. Here, the gate 4 receives the character width addition result (Wl) from the adder 3.
) is supplied as a signal, and the gate 4 is opened by the input of the signal 2S, and the addition result (wl) is supplied to the adder 6. This adder 6 sequentially adds the supplied addition results (wl) of the adder 3, that is, word lengths. Also, each time such an addition operation is performed, a reset signal R is sent to the adder 3.
is output to. In the adder 3, its contents are cleared by the reset signal R, and addition of character widths is started again.

The end-of-line detection circuit 5 determines whether the number of input words has reached the number of lines constituting one line by counting the number of inputs to No. 44 2S. In other words, the end of one line is detected. When the end of a row is detected, a detection signal 5s is output to the adder 6 and the final row detection circuit 7. Further, counting of the number of incoming signals 2S is started from zero.

When the adder 6s receives the signal 5S, the adder 6s converts the summation result (W) up to that point, that is, the width of one row, into the maximum row width detection circuit 8.
and starts adding the adder result (wl) again from zero. The maximum line width detection circuit 8 sequentially compares the supplied line widths and selects the maximum line width (WAX).

The final line detection circuit 7 counts the number of inputs of the signal 5S and detects whether the input line is the last line of one page. This detection output cuff S is supplied to the maximum line width detection IjjJ path 8. In the maximum line width detection circuit 8, when No. 1) 7S is supplied, the maximum line width (MAX) selected so far is
is output to a print control section (not shown).

FIG. 2 shows the operational procedure for calculating the print width of one line, which is executed by the circuit shown in FIG. The operation will be explained according to the second factor.

When character code data W is input from a keyboard etc.,
The width of the input character is determined in the character width table 1 (step ■). That is, an input character is decoded and its corresponding length is sequentially retrieved from the character width table. Generally, the number of English characters is 96, and there are 258 types at @large, so such a search task is easily performed. Note that the method for determining the character width is not limited to the method of this example, and may be any other known method.

Next, the character widths searched in this way are added up in the adder 3 (step 2). Contents of adder 3 (punishment)
is initially set to zero. Next, the expiration date character detection circuit 2 determines whether the input character is an expiration date character (step ■). Here, an expiration date character is a space character between words. or hyphen, and are characters that identify breaks in one word. Until this expiration date character is input, the adder 3 adds the character width of the input character. When an expiration date character is input, the contents (Wl) of adder '3 are added in adder 6. Here, the contents (Wl) of the adder 3 at this point are as follows.

This is the total width of the characters that make up the word from the beginning of g to the end of the - word (including the end date character). In the adder 6, the content (W) is initially set to zero, and the calculated total value (Wl) is added in the adder 6 (step ■). Also, at the time of grass, the contents of adder 3 (wl) are reset to zero (step ■).
1 The input character widths are added again in this adder 3.

Next, the end-of-line detection circuit 5 determines whether the number of input characters exceeds the predetermined width of one line, and determines whether to move the input characters or words to the next line (step
). If it is determined that the next line should be moved, the detection circuit 8 receives the real voice (W) of the adder 6 and stores it (step 2). At this point, the adder 56 is reset (step ■). The above-mentioned operation is performed until the last line of one page is detected in the detection circuit 7 (step 2), and the maximum line width detection circuit 8 stores the line width of each line. When the last row is detected, the detection circuit 8 detects the maximum row width (WAX) from the stored row widths (step @).

The maximum line width value (MAX) obtained in this way is used as the physical width during printing.

Note that step O indicated by a broken line in FIG.
The steps required for word processing operations such as display, memory manipulation, etc.

(Effects) As explained above, according to the present invention, among the lines to be printed, the line with the maximum line width is detected, and this maximum line width is set as the print width of one line. It is possible to perform much more appropriate printing than determining the printing width of one line by assuming all characters are the maximum width characters as in the past. It is also possible to solve the disadvantage that the character space becomes zero as in the case of calculation, thereby making it possible to perform high-quality printing.

[Brief explanation of the drawing]

FIG. 1 is a circuit configuration diagram showing an embodiment of the present invention, and FIG. 2 is a flowchart showing its operation. l...Character width table, 2...End date character detection circuit, 3.6...Adder, 4...Gate, 5...End of line detection circuit, 7...Last line detection circuit, 8... Maximum line width detection circuit. Patent applicant Canon Co., Ltd.

Claims (1)

[Scope of Claims] Character width setting means for setting the character width of input characters; line width calculation means for calculating the total width of a group of characters included in one predetermined line; and from the calculated line width. Microspacing (1) characterized by comprising a print width setting means for detecting the maximum line width and setting the line width as the print width of one line. Scientific method. (Hereafter, margin)