JPS61861A - Line end setting system for electronic typewriter of japanese word - Google Patents

Abstract

PURPOSE:To attain the display or non-display of a blank corresponding to a margin in response to the presence or absence of a margin release state, by providing a margin release key, an address generating part, a +1 circuit, etc. CONSTITUTION:A margin release key is pushed to secure a margin release state, and the margin is displayed to a display only when a cursor is shifted. No margin is displayed when the release key is not pushed with a line end set. In other words, the data read out of a document memory 18 is displayed excluding a blank part with the line end set in case the number of digits within a line are set at 7, together with the left margin set at 2, the right margin set at 1, the display head position set at the 0th line and the 3rd digit and the number of characters set at (8 characters X 1 line) for a liquid crystal panel 15 respectively. In this case, the addition/subtraction is carried out by a unit amount to the document memory addresses corresponding to the cursor positions via an address generating circuit 22 and a +1 circuit 23. Thus a blank corresponding to a margin can be displayed or not to a display.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a Japanese typewriter equipped with a small display section having a display screen for displaying a character string smaller than one line, when the margin release state is not set. , relates to a line end setting method for Japanese electronic typewriters that does not display margins on the display screen, but allows a blank space corresponding to the margin to be displayed on the display screen when the margin is released. .

[Prior art and problems]

A Japanese electronic typewriter has a keyboard that can input kana, a display unit that displays the input character string and the kanji character string that is the result of kana-kanji conversion, a printer unit that prints the created document, and the input kana character string. It is equipped with a kana-kanji conversion mechanism that converts characters into kanji strings. For example, the display part of the previous Japanese electronic typewriter was 48
It consists of a CRT with a display screen of 22 lines of characters, but conventional Japanese electronic typewriters with CRT displays have drawbacks such as being relatively expensive, large, and heavy. ing. In order to eliminate this drawback, it has been proposed to use a liquid crystal panel capable of displaying characters smaller than one line as a display section. 1
In a conventional Japanese electronic typewriter having a display unit capable of displaying a page worth of documents, margin portions are displayed on the display screen with predetermined symbols. However, in the Japanese electronic typewriter proposed this time, the display screen of the display section is, for example, 8 characters x 1 line in size, so if the margin is displayed on the display section,
Character strings input from the keyboard and Chinese character strings resulting from kana-kanji conversion cannot be displayed on the display. There are also cases where it is desired to create a document using an area designated as a margin area.

[Purpose of the invention]

The present invention is based on the above considerations, and is capable of displaying a blank space corresponding to the margin on the display section under the margin release state, and displaying a blank space corresponding to the margin on the display section when not in the margin release state. The purpose of this paper is to provide a method for changing the line ends of a Japanese electronic typewriter that avoids this.

[Means for solving problems]

Therefore, the line end setting method of the Japanese electronic typewriter of the present invention is to display the character string input from the keyboard and the kanji character string that is the result of kana-kanji conversion.
In a Japanese electronic typewriter that is equipped with a display section with a size of one line (n is smaller than the number of digits in the line), a document memory for storing confirmed characters, and a printer, there are a margin release key and a margin release key. A state setting canceling means that changes the operating state of the device to the margin release state when the margin release key is pressed when it is not in the release state, and when the left cursor movement key is pressed under the margin release state. ” - address generating means for subtracting a document memory address corresponding to a cursor position on a display by a unit amount and adding the document memory address by a unit amount when a right cursor movement key is pressed; means for reading data from the address of the document memory specified by the address generation means on the condition that the document memory address is updated by the means and the document memory address is in the margin release state; If the data read as margin data is margin data, a blank is displayed at the digit specified by the cursor on the display section, and blank data is displayed at the document memory address where the read margin data is stored. The invention is characterized by comprising means for writing.

[Embodiments of the invention]

First, an overview of the Japanese electronic typewriter of the present invention will be explained.

(b) Regarding the display screen In conventional Japanese electronic typewriters, documents are created on the display screen, but the basic idea of the present invention is to keep the display screen to the minimum size necessary for kana-kanji conversion. The idea is to use the printed results on paper in place of the display screen of conventional Japanese electronic typewriters. In the embodiment of the present invention, a liquid crystal panel is used as the display section, but since the cost of the liquid crystal panel is proportional to the number of displayed characters, the number of displayed characters is made as small as possible. ``The size of the display screen of the liquid crystal panel is, for example, 8 characters x 1 line. In Japanese electronic liveliking using the kana-kanji conversion method, it is necessary to display the input kana character string and the conversion candidate kanji character string on the display screen, but since these are different from the final printed characters, the display screen Display it only in the area and print it after confirming the rectangle.

(b) Regarding the ejecting method Since the display screen of the Japanese electronic type-like of the present invention is small (for example, 8 characters x 1 line), it is necessary to remove characters one after another, and the ejected characters must be printed. There are two ways to remove characters from the display screen: one is to remove characters immediately after the conversion is confirmed, and the other is to remove characters from the display screen by one character to the left when a character is entered from the keyboard with the cursor past the right edge of the display screen. One possible method is to shift the characters to the left end of the display screen and display the characters input from the keyboard at the right end of the display screen.

(c) If you want to refer to the previous and subsequent parts that have already been created regarding the relationship between the cursor and the printer head, press the upward cursor movement key. Then, the character string in the same digit range of the previous line is read from the document memory and displayed on the display screen, and the printer performs a reverse change operation, and the printer head corresponds to the leftmost character on the display screen. position on the printing paper. When the downward cursor movement key is pressed, a printer change operation is performed. When the left cursor movement key is pressed while the cursor is at the left end of the display screen, the entire screen is shifted to the left and the printer head is moved to the left. When the right cursor movement key is pressed while the cursor is past the right edge of the display screen, the entire screen is shifted to the right and the printer head is moved to the right. In this way, the printer head is positioned at the position on the paper where the leftmost character on the display screen is to be printed. In addition, in the above explanation, when the screen moves up, down, left, or right, the relative position of the printer head and the paper changes, but if the character at the left end of the display screen changes from the i line to the i + l Alternatively, the printer may perform a line feed or reverse feed operation when the line changes from line i to line i-1.

(d) Regarding printing control for characters that overflow from the display screen In a method that prints characters when they overflow from the display screen, if you simply print when the characters overflow from the left edge, the previous line will be When displaying, there is no opportunity to print the characters currently displayed on the screen. Also,'
Even when the entire screen is shifted to the left and characters that have already been printed on that line are displayed again, the characters that have not yet been printed on the screen overflow from the right edge of the screen. Printing characters that overflow from the right edge is difficult for printers that print in one direction (it also damages the ribbon). Therefore, when the printer head moves from the i-th line to the first line (ifj) (when the operator moves the cursor using the up cursor movement key or down cursor movement key, or when the printer head moves to the beginning of the line) (For example, when the left cursor movement key is pressed to move the head to the previous line), the characters that have not yet been printed on the i-th line are printed all at once.

If you are constantly printing characters that overflow from the display screen, if you move the cursor under the state where the character string of the already printed part is displayed on the display screen and the characters overflow from the left edge of the display screen, it will appear on the paper. Additional characters are printed in areas where characters have already been printed. Also, if you want to modify text that has already been entered, if you print it as is, the text will be overwritten on top of the original text and will become unreadable. Therefore, printing is performed only when characters are written on blank spaces.

(e) Line boundary display Although character strings spanning lines are displayed continuously on the display screen, marks are displayed on the screen to indicate line boundaries. For example, there is a character string "Kyo wa", and "Kyo" is in the m-2 to m digit of the i-th line (the m digit is the right end of the range to make a sentence), and "ha" is in the left end of the i-th line At some point, on the display screen, ``Kyou: Ha...'' is displayed.

(f) About the two calling methods If you keep pressing the left cursor movement key or the right cursor movement key, the screen will shift horizontally and each line will be displayed one after another on the display screen, but the upper When the directional cursor movement key or the downward cursor movement key is pressed, a character string in the digit range just above or below is read from the character memory and displayed on the screen.

(g) About line edge settings If you want to create a document with a width smaller than the maximum number of characters per line (number of columns in a line), set margins on the left and right. It's not difficult. That is, depending on the width of the margin, the characters may become invisible. The margin is displayed on the display section only when the cursor is moved after pressing the margin release key, and the margin is not displayed on the display section when the margin release key is not pressed.

The first part is a block diagram of one embodiment of the present invention.

In the figure, ■ is the keyboard, 2 is the input buffer, 3 is the kana-kanji conversion mechanism, 4 is the conversion result holding unit, 5 is the control unit,
6 is a character number counter, 7 is a cursor position register, 8 is an effective reading length counter section, 9 is an input status flag section, 10 is a confirmed status flag, 11 is a display code buffer, 12 is a save buffer, 13 is an overflow control section , 14 is a character generator, 15 is a liquid crystal panel, 16 is a printer, 17 is a format memory, 18 is a document memory, 19 and 20
21 is a manual row buffer, 21 is a comparison section, 22 is an address generation section, and 23 is a +1 circuit. The keyboard 1 is used to input kana characters, alphanumeric characters, and the like. The input buffer 2 temporarily holds kana character strings input from the keyboard 1. The character string of the input cover sofa 2 is stored in the display code buffer 11 via the control section 5. When the conversion key on the keyboard 1 is pressed, the kana-kanji conversion mechanism 3 is activated. When activated, the kana-kanji conversion mechanism 3 converts the kana character string in the input cover sofa 2 into a kanji character string, and writes this into the conversion result holding section 4. The kanji character string in the conversion result holding unit 4 is sent to the display code buffer 11 by the control unit 5, and the corresponding kana character string in the display code buffer 11 is replaced with the kanji character string. The control unit 5 controls the entire Japanese electronic typewriter, and includes a character counter 6,
It has a cursor position register 7, an effective reading length counter 8, an input state flag 9, and a confirmed state flag 10. The character number counter 6 is for displaying line boundaries. The cursor position register 7 indicates the cursor position on the liquid crystal panel 15.8 The effective reading length counter 8 indicates the number of kana characters in the kana character string to be converted. When the next character is input from the keyboard 1 after the conversion key is pressed, the kanji character string for the kana character string to be converted is determined. The character string in the confirmed state is stored in the document memory 18. Character codes are stored in the display code buffer 11, and the contents of the display code buffer 11 are converted into character patterns by the character generator 14.
It is sent to the liquid crystal panel 15. That is, a character pattern corresponding to the contents of the display code buffer 11 is displayed on the liquid crystal panel 15.

The save buffer 12 is used to save the contents of the display code buffer 11.

For example, if you enter "Kiyouha" from the keyboard 1 with rABcDJ written in the display code buffer 11 and the cursor pointing to rAJ, rA B
CD! is replaced with "Kiyouha". When the conversion key is pressed in this state, the character "Today is D" is written into the display code buffer 11. save buffer 12
is used, for example, to realize such a function.

When the cursor is beyond the right edge of the liquid crystal panel 15, that is, when the value of the cursor position register 7 is "8",
When new characters are sent to the display code buffer 11, the leftmost characters of the display code buffer 11 overflow.
A new character is written to the right end of display code buffer 11. Also, if you press the right cursor movement key when the value of cursor position register 7 is "8", the display code
The characters at the left end of buffer 11 overflow, and a blank space is written to the right end of display code buffer 11. The overflow control unit 13 performs controls such as writing characters overflowing from the left end of the display code buffer 11 into the input line buffer 19. The format of the document is determined by the contents of Format Memo January 7. In order to manage the document memo January 8, a display start position register is provided. This display start position register indicates the document memory address corresponding to the leftmost digit of the display code buffer 11. Every time the upward cursor movement code corresponding to the upward cursor movement key is input, the contents of the display start position register are incremented by -n (where n is the number of digits in one line), and the downward cursor movement code is input. The above contents are increased by +n each time. If the leftward cursor movement code is input when the content of the cursor position register 7 is "0", the content of the display start position register is -1
be done. If the rightward cursor movement code is input when the content of the cursor position register 7 is "8", the content of the display head position register is incremented by 1.

The leftmost digit of the display code buffer 11 is from the i-th row to the 1st
When the line changes, the printer 16 prints the characters that have not been printed yet among the character strings in the i-th line of the document memo January 8. The printer 16 is, for example, a thermal printer. After this process is completed, a line feed or reverse feed operation of the printer 16 is performed, the head of the printer 16 is positioned at the first line position, and the characters of the first line of the document memory 18 are written to the input line buffer 20. . When the character in the X position of the first line overflows from the left end of the display code buffer 11, this character is stored in the X position of the input line buffer 19, and this character and the character in the X position of the input line buffer 20 are compared. 21, and if the character in the X position of the input line buffer 20 is blank, then the display code buffer 11
The overflowing characters in the jth row and Xth column are printed by the printer 16 on the jth row and Xth column. Display code buffer 1
When the position on the document memory corresponding to the leftmost digit of 1 changes from the first line to the second line, the printer 1 prints the characters that have not yet been printed out of the character string in the first line of the document memory 18.
6 must be printed. For this reason, the following processing is performed.

Character string aI+aZ stored in input input couch 19
+ -aM and the character strings stored in the input line buffer 20, , b2. -b. b8(i =
If 1, 2-n) is blank, change s to ai,
If it is not a blank but a regular character, leave it as is. The resulting string is CI+C2+---C1
Set to 1. Actually, the character string in the first line of the document memory is d,,
Let d, , -d, . Character string d,,d2. -d, and the character string cl + cZ + -Cn are compared. If C2 is a blank, leave d, and if d is not a blank and is a regular character, remove d8.

Let the character string obtained as a result be e,,C2,-e.

The printer 16 may print each character of this character string eI+C2+-en in the corresponding column position of the first line. The address generator 22 determines the address when accessing the document memo January 8, and the +1 circuit 23 increments this address by +1.

Note that the actual hardware for implementing the present invention is as follows:
The format memory 17 and the document memory 18 are composed of RAM, the character generator 14 is composed of ROM,
This RAM, keyboard 1, liquid crystal panel 15. The parts excluding the printer 16 are program memory, dictionary memory,
It consists of a microprocessor and other memory v4 areas.

FIG. 2 is a diagram showing an example of character strings in the document memory and character strings on the liquid crystal panel when the margin is not in the release state. In the example shown in Figure 2, the number of in-line digits in the document is "7", the left margin is "2", the right margin is "1", the display start position is 0th row, 3rd digit, and the number of characters on the LCD panel 15 is 8 characters. ×1
It is said to be a row.

Note that the first row is the 0th line and the first digit is the 0th digit.

The 0th digit of the liquid crystal panel 15 has the number "2", the first digit has the number "3", the second digit has the number "4", and the third digit has the number "5".
”, the 4th digit is the number “’6”, the 5th digit is the number “7”
, the number ``8'' is displayed in the 6th digit, the digit ``9'' is displayed in the 7th digit, a line boundary mark is displayed between the 2nd and 3rd digit, and the 6th and 7th digit are displayed. Line boundary marks are also displayed between the lines.

FIG. 3 is a diagram for explaining line end setting when the margin release key is not pressed. In FIG. 3, 24 indicates a screen memory. Note that the same reference numerals as in FIG. 1 indicate the same parts. In the create or update mode, a character string in the form of a code in the display code buffer 11 is converted by the character generator 14 into a character string in the form of a dot pattern, and the screen memory 24 stores this character string in the form of a dot pattern. It is something to keep. Although this screen memory 24 is omitted in FIG.
This is the character generator 14 and the liquid crystal panel 15
It can be thought of as existing between the two.

The line end settings when not in margin release state are as follows. For example, when a character string as shown in FIG. 2 is stored in the document memory 18, the upward cursor movement key is pressed and the display top position moves to the 0th row, 3rd digit (3rd address). Suppose it became. First, data is read from the third address of the first day of the document memory. Since this data is not a margin but the number "2", the number "2" is displayed in the 0th digit of the liquid crystal panel 15, and the counter is set to "1". Since the content of the counter is not "8", the number "3" is read out from the fourth address of the document memo January 8 and displayed on the first digit of the liquid crystal panel 15, and the counter becomes "2". Since the counter is not "8", the number "4" is read from the fifth address of the document memory 18 and displayed on the second digit of the liquid crystal panel 15, and the counter becomes "3".

Since the counter is not "8", data at address 6 of document memory 1B is read. At this time, a row boundary mark is displayed between the second and third digits of the liquid crystal panel 15. 6th
Since the address data is a margin, nothing is displayed in the third digit of the LCD panel 15, and the document memory address is +
1 and becomes the 7th address. Since the data at the seventh address of the document memory 18 is also a margin, nothing is displayed on the third digit of the liquid crystal panel 15. Since the data at the 8th address of the document memory 18 is also a margin, nothing is displayed on the 3rd digit of the liquid crystal panel 15.

The read data from the 9th address of the document memo January 8th is the number "
5”, the number “5” is placed in the third digit of the liquid crystal panel 15.
is displayed and the counter becomes '4''.

Thereafter, similar operations are repeated until the counter reaches 8''.

FIG. 4 explains line end setting in the margin release state. In FIG. 4, reference numeral 25 indicates a keyboard control section, 26 indicates a state setting cancellation section, and 27 indicates a blank changing section. The keyboard control section 25 notifies the state setting cancellation section 26 when a key related to margin release is pressed. Also,
The keyboard control unit 25 controls when a key that causes cursor movement is pressed under the margin release state.
The document memory address corresponding to the cursor position is incremented by +1 or =1. The blank change section 27 is a document memo 1
If the data read from month 8 is a margin, a blank is written in the digit of the screen memory 24 specified by the cursor, and a blank code is written at the address in the document memory of the read margin. be.

FIG. 5 is a diagram showing changes on the display screen when the left cursor movement key is pressed under the margin release state. As shown in Figure 5, the margin release
Suppose that when the key is pressed, 00 ([12345) is displayed on the display screen and the cursor is positioned at the number "1". Also, the address in the document memory of the number ``1'' is in the second column of the first line. , and the left margin is 2°'. Note that the vertical dotted line between the numbers "0" and "1" indicates a line boundary mark.

In this state, when the left cursor movement key is pressed, the document memory address is incremented by 1, and data is read from the first column of the first row of the document memory 18. Since this data is merge data, the character string on the right side of the line boundary mark on the liquid crystal panel 15 is shifted to the right by one character, and a blank is written in the third digit of the liquid crystal panel 15. When the left cursor movement key is further pressed, the document memory address is incremented by 1, and data is read from the 0th digit of the first row of the document memory 18. Since this data is also margin data, the character string on the right side of the line boundary mark on the liquid crystal panel 15 is shifted to the right by one character, and a blank is written in the third digit of the liquid crystal panel 15. If the left cursor movement key is further pressed while the document memory address corresponding to the cursor position indicates the left edge of the line, the margin release state is canceled and the cursor moves to the second digit of the liquid crystal panel 15. It is positioned in When the cursor is positioned at a blank digit and a character is input from the keyboard in this state, the character is written at the position indicated by the cursor, and after confirmation, the character is stored at the corresponding position in the document memory 18.

FIG. 6 shows the change in the display screen when the right cursor movement key is pressed in the margin release state.

Assume that the cursor position when the margin release key is pressed corresponds to the n-3rd column of the first line of the document memory (n is the number of columns in the line), and that the right margin is "2". When the right cursor movement key is pressed under this condition,
The margin is read from the n-2nd digit of the first row of the document memory 18, the character string to the left of the line boundary mark is shifted one character to the left, the display start position is set to -1, and the blank is moved to the liquid crystal panel 15. Written to the third digit. When the right cursor movement key is further pressed, the n-th line of the first row of the document memory 18 is
Margin data is read from the first digit, the character string to the left of the line boundary mark is shifted by one character, the display start position is decremented by 1, and a blank is written in the third digit of the liquid crystal panel 15. When the right cursor movement key is pressed while the document memory address corresponding to the cursor position indicates the right edge of the line, the margin/lease state is canceled and the cursor moves to the fourth digit on the LCD panel. It is positioned in Note that under the margin release state, the margin
When the release key is pressed, the margin release state is immediately released.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, characters can be printed in digits that are defined as margin areas.

[Brief explanation of drawings]

Fig. 1 is a block diagram of one embodiment of the present invention, Fig. 2 is a diagram showing an example of character strings in the document memory and character strings on the liquid crystal panel when the margin release is not in the state, and Fig. 3 is a diagram showing an example of the character string on the liquid crystal panel when the margin release is not performed. Figure 4 is a diagram explaining the line end setting when the state is not in the margin release state, Figure 4 is a diagram explaining the line end setting in the margin release state, and Figures 5 and 6 are the margin release state.
FIG. 7 is a diagram showing changes in the display screen when a leftward or rightward cursor movement key is pressed in a released state. 1-keyboard, 2-human power buffer (3-kana-kanji conversion mechanism, 4-conversion result holding unit, 5-control unit, 6-character number counter, 7-cursor position register, 8-effective reading length count, 9-manpower status Flag section, 10-1+i steady state flag section, 11-display code buffer, 12-save/
Buffer, 13-・Overflow control unit, 14-Character・
Generator, 15-LCD panel, 16-Printer,
17-form memory, 18-document memory, 19 and 20-
21-comparison section, 22-address generation section, 23-+1 circuit, 24 one-screen memory, 25-keyboard control section, 26-state setting cancellation section, 27-blank change section. [Sai1zu]21 Sai3I21 Shows the cursor

Claims (1)

[Claims] A display section with a size of n digits x 1 line (n is smaller than the number of digits in the line) that displays the character string input from the keyboard and the kanji character string that is the result of kana-kanji conversion, and a document that stores the determined characters. In a Japanese electronic typewriter equipped with a memory and a printer, there is a margin release key, and when the margin release key is pressed when the margin release key is not in the margin release state, the operating state of the device is changed to the margin release state. When the left cursor movement key is pressed under the margin release state, the document memory address corresponding to the cursor position on the display is subtracted by a unit amount, and the right cursor movement key is pressed. Address generation means that adds a unit amount to the document memory address when pressed, and specified by the address generation means on the condition that the document memory address is updated by the address generation means and is in the margin release state. means to read data from the address in the document memory that has been read out, and if the read data is margin data, provided that the margin release state is in effect, a blank space is written in the digit specified by the cursor on the display section. A line end setting method for a Japanese electronic typewriter, comprising means for displaying and writing blank data at an address in a document memory where read margin data is stored.