JPH0316662B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] 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. This invention relates to a line end setting method for a Japanese electronic typewriter in which a margin is not displayed on the display screen of the display, but a blank space corresponding to the margin is displayed on the display screen when the margin is released.

[Conventional technology and problems]

A Japanese electronic typewriter has a keyboard that can input kana, a display section that displays the input character string and the kanji string that is the result of kana-kanji conversion, a printer section 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 section of a conventional Japanese electronic typewriter is 48 characters x 22.
Consists of a CRT with a line display screen,
Conventional Japanese electronic typewriters with CRT displays have drawbacks such as being relatively expensive, large, and heavy. 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. In a conventional Japanese electronic typewriter having a display unit capable of displaying one page of a document, the margin portion is displayed on the display screen with a predetermined symbol. However, in the Japanese electronic typewriter proposed this time, the display screen on the display section is, for example, 8 characters x 1 line in size, so if the margin is displayed on the display section, the character string input from the keyboard or The kanji character string that is the result of kana-kanji conversion cannot be displayed on the display. Also,
There are also cases where it is desired to create a document using an area that is designated as a margin area.

[Purpose of the invention]

The present invention is based on the above invention, and includes:
Under the margin release state, a blank space corresponding to the margin can be displayed on the display, and
The object of the present invention is to provide a line end changing method for a Japanese electronic typewriter in which a blank space corresponding to the margin is not displayed on the display section when the margin is not in the margin release state.

[Means for solving problems]

Therefore, the line end setting method of the Japanese electronic typewriter of the present invention is to display a character string input from the keyboard and a kanji character string resulting from kana-kanji conversion in n digits x 1 line (n is the number of digits in the line). In a Japanese electronic typewriter, which is equipped with a display section of a size smaller than 1,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,0000000000 type type type type type type type type type type type type type typewriter typewriter, such as a Japanese electronic typewriter that is equipped with a display unit of a size smaller than・A state setting canceling means that changes the operating state of the device to the margin release state when a key is pressed, and corresponds to the cursor position on the display when the leftward cursor movement key is pressed under the margin release state. Address generation means for subtracting a document memory address by a unit amount and adding the document memory address by a unit amount when a right cursor movement key is pressed, and updating the document memory address by the address generation means. Thereafter, there is a means for reading data from the address of the document memory specified by the address generating means on the condition that the margin release state is established, and the data read out on the condition that the margin release state is the margin data. If so, it is characterized by comprising means for displaying a blank in the digit specified by the cursor on the display section and writing blank data at the address of the document memory where the read margin data is stored. That is.

[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 make the display screen as large as the minimum 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 typewriters that use 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 It is displayed only on the screen and printed after confirmation.

(b) Regarding the expulsion method Since the display screen of the Japanese electronic typewriter of the present invention is small (for example, 8 characters x 1 line), it is necessary to expel characters one after another, and the expelled 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) Regarding the relationship between the cursor and the printer head If you want to refer to the previous or next part that has already been created, press the upward cursor movement key.
Then, the character string in the same digit range in the previous line is read from the document memory and displayed on the display screen, and the printer performs a reverse change operation, so that the printer's 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 edge 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 head of the printer is positioned at the position on the paper where the leftmost character on the display screen is to be printed. In the above explanation, when the screen moves up, down, left, or right, the relative position between the printer head and the paper changes. When changing from the i line to the i-1 line, the printer may perform a line feed or reverse feed operation.

(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 side, the previous line will be printed in the middle of creation. When displaying , there is no opportunity to print the characters displayed on the screen. Also, 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 will 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's head moves from the i-th line to the j-th line (i≠j) (when the operator moves the cursor using the cursor up or down keys, or when the printer's head moves from line to line), (e.g. when pressing the left cursor move key while at the beginning of the line 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, the characters already on the paper will be printed. More characters are printed in the area where characters were printed. Also, if you want to edit 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) Regarding line boundary display Character strings that span lines are displayed continuously on the display screen, but marks are displayed on the screen to indicate line boundaries. For example, there is a character string ``Kiyou wa'', ``Kiyo'' 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 ``wa'' is in the i-th line When it is at the left end, it is displayed as... on the display screen.

(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 top 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 When 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, but when these margins are displayed, words that span lines are 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.

FIG. 1 is a block diagram of one embodiment of the present invention. In the figure, 1 is the keyboard, 2 is the input buffer, 3 is the kana-kanji conversion mechanism, 4 is the conversion result holding section, 5 is the control section, 6 is the character number counter, 7 is the cursor position register, and 8 is the effective reading length counter section. , 9 is an input state flag section, 10 is a confirmed state 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
1 is a printer, 17 is a format memory, 18 is a format memory, 19 and 20 are input line buffers, 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 in the input buffer 2 is sent to the display code via the control unit 5.
It is stored in the buffer 11. 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 will:
The kana character string in the input buffer 2 is converted into a kanji character string, and this is written into the conversion result holding section 4. The kanji character string in the conversion result holding section 4 is sent to the display code buffer 11 by the control section 5, and the corresponding kana character string in the display code buffer 11 is replaced with the kanji character string. The control section 5 controls the entire Japanese electronic typewriter, and has a character number counter 6, 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. 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 that has become finalized is stored in the document memory 18. A character code is stored in a display code buffer 11, and the contents of the display code buffer 11 are converted into a character pattern by a character generator 14 and sent to a 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. save·
Buffer 12 is used to save the contents of display code buffer 11. For example, when "ABCD" is written in the display code buffer 11 and the cursor is pointing to "A", if you enter "Kiyouha" from the keyboard 1, "ABCD" changes to "Kiyouha". Replaced. When the conversion key is pressed in this state, the characters "Today is D" are written into the display code buffer 11. The save buffer 12 is used, for example, to implement such a function. When a new character is sent to the display code buffer 11 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", the display code buffer 11 The characters on the left end of the display code buffer 11 overflow, and new characters are written on the right end of the display code buffer 11.
If the right cursor movement key is pressed when the value of the cursor position register 7 is "8", the characters at the left end of the display code buffer 11 overflow and a blank space is written at the right end of the display code buffer 11. The overflow control unit 13 transfers characters overflowing from the left end of the display code buffer 11 to the input line buffer 1.
It controls writing to 9. The format of the document is determined by the contents of format memory 17. In order to manage the document memory 18, a display start position register is provided. This display head 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 (n is the number of digits in one line), and the downward cursor movement code is input. Each time, the above contents are incremented by +n. If the leftward cursor movement code is input when the content of the cursor position register 7 is "0", the content of the display head position register is incremented by 1. If the rightward cursor movement code is input when the content of cursor position register 7 is “8”, the content of the display start position register is +1
be done.

When the leftmost digit of the display code buffer 11 changes from the i-th line to the j-th line, the document memory 18
The printer 16 prints the characters that have not been printed yet among the character strings in the i-th row of the character string. printer 1
6 is, for example, a thermal printer. After the processing is completed, the line feed or reverse feed operation of the printer 16 is performed, the head of the printer 16 is positioned at the jth line position, and the characters in the jth line of the document memory 18 are written to the input line buffer 20. . When the x-digit character of the j-th row overflows from the left end of the display code buffer 11, this character
This character and the input line buffer 2
The character in the x digit of 0 is compared by the comparison unit 21, and if the character in the x digit of the input row buffer 20 is a blank, the character in the is printed by the printer 16 in the jth row and xth column. When the position in the document memory corresponding to the leftmost digit of the display code buffer 11 changes from the jth line to the kth line, the printer prints the characters that have not yet been printed out of the character string in the jth line of the document memory 18. 16 must be printed. For this reason, the following processing is performed. Character strings a ₁ , a ₂ , a _o stored in the input row buffer 19
and the character string stored in the input row buffer 20
Compare b ₁ , b ₂ , ...b _o . b _i (i=1, 2...n)
If is a blank, change b _i to a _i ; if it is not a blank and is a regular character, leave b _i as is. Let the resulting character strings be c ₁ , c ₂ , ... _co . Assume that the character strings in the j-th line of the document memory 18 are d ₁ , d ₂ , . . . d _o . Compare the strings d ₁ , d ₂ , ...d _o with the strings c ₁ , c ₂ , ...c _o . If c _i is a blank, leave d _i ; if d _i is a non-blank character, remove d _i . Let the resulting character strings be e ₁ , e ₂ , ...e _o . Each character of this character string e ₁ , e ₂ , ...e _o is printed by the printer 16 at the jth
Just print it in the corresponding column position of the line. The address generator 22 determines the address when accessing the document memory 18, and the +1 circuit 23 increments this address by +1. The actual hardware for implementing the present invention is that the form memory 17 and document memory 18 are composed of RAM, the character generator 14 is composed of ROM, and this RAM, keyboard 1, liquid crystal panel 15, printer The parts except 16 are program
It consists of memory, dictionary memory, microprocessor and other memory 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 line. 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
The number "5" is displayed in the digit, the number "6" is displayed in the fourth digit, the number "7" is displayed in the fifth digit, the number "8" is displayed in the sixth digit, and the number "9" is displayed in the seventh digit. , a line boundary mark is displayed between the second and third digits, and a line boundary mark is also displayed between the sixth and seventh digits.

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

The line end settings when not in margin release state are as follows. For example, the second
Assume that the upward cursor movement key is pressed and the display start position becomes the 0th row, 3rd digit (3rd address) in a state where a character string as shown in the figure is stored in the document memory 18. First, document memory 1
Data is read from the third address of 8. This data is not a margin but the number “2”, so
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 from the fourth address of the document memory 18 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", document memory 1
The data at the 6th address of 8 is read out. At this time,
A line boundary mark is displayed between the second and third digits of the liquid crystal panel 15. Since the data at the sixth address is a margin, nothing is displayed in the third digit of the liquid crystal panel 15, and the document memory address is incremented by 1 to become the seventh address. Since the data at the 7th address of the document memory 18 is also a margin, the data at the 3rd address of the liquid crystal panel 15
Nothing is displayed on the digits. No. 8 of document memory 18
The address data is also a margin, so LCD panel 1
Nothing is displayed in the third digit of 5. Document memory 1
Since the read data from the 9th address of 8 is the number “5”, the number “5” is displayed 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. Further, the keyboard control unit 25 increments the document memory address corresponding to the cursor position by +1 or -1 when a key that causes cursor movement is pressed under the margin release state. If the data read from the document memory 18 is a merge, the blank change unit 27 writes a blank in the digit of the screen memory 24 specified by the cursor, and also writes the address of the read margin on the document memory. This is to write a blank code to.

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 FIG. 5, when the margin release key is pressed, it is assumed that 000〓12345 is displayed on the display screen and the cursor is positioned at the number "1". Further, it is assumed that the address of the number "1" on the document memory is the second digit of the first row, and that the left margin is "2". In addition, the number “0”
The vertical dotted line between 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 the first
Data is read from the 0th digit of the row. Since this data is also margin data, the LCD panel 15
The character string on the right side of the line boundary mark is shifted one character to the right, 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 released and the cursor is positioned at the second digit on the liquid crystal panel 15. When the cursor is positioned at the 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 in this state, the margin is read from the n-2nd column of the first row of the document memory 18, and the character string to the left of the line boundary mark is moved one step to the left.
The display is shifted by a character, the display start position is incremented by -1, and a blank is written in the third digit of the liquid crystal panel 15. When the right cursor movement key is further pressed, the margin data is read from the n-1st column of the first row of the document memory 18, and the character string to the left of the line boundary mark is shifted by one character, and the character string is shifted to the top of the display. The position is incremented by 1, and a blank is written in the third digit of the liquid crystal panel 15. If 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
The release state is released and the cursor is positioned at the fourth digit on the liquid crystal panel. Note that when the margin release key is pressed while in the margin release state, 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, and FIG.
The figure shows an example of the character string in the document memory and the character string on the liquid crystal panel when the margin is not released. Figure 3 is a diagram explaining the line end settings when the margin is not released. Figures 5 and 6, which explain line end settings in the margin release state, show changes in the display screen when the left or right cursor movement key is pressed under the margin release state. It is a diagram. 1...Keyboard, 2...Input buffer, 3...
...Kana-kanji conversion mechanism, 4...Conversion result holding unit, 5
...Control unit, 6...Character number counter, 7...Cursor position register, 8...Valid reading length counter,
9... Input status flag section, 10... Determined status flag section, 11... Display code buffer, 12...
Save buffer, 13...Overflow control section, 14
... Character generator, 15 ... Liquid crystal panel, 16 ... Printer, 17 ... Format memory,
18...Document memory, 19 and 20...Input line buffer, 21...Comparison section, 22...Address generation section, 23...+1 circuit, 24...Screen memory, 2
5...Keyboard control unit, 26...Status setting cancellation unit, 27...Blank changing unit.

Claims (1)

[Claims] 1. 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 stores the determined characters. In a Japanese electronic typewriter equipped with a document memory and a printer, the margin release key and the margin release key are pressed when the margin release key is not in the margin release state.
A state setting canceling means that changes the operating state of the device to the margin release state when the release key is pressed, and corresponds to the cursor position on the above display when the left cursor movement key is pressed under the margin release state. address generation means for subtracting a document memory address by a unit amount from a document memory address to be stored and adding the document memory address by a unit amount when a right cursor movement key is pressed; and updating the document memory address by the address generation means. means for reading data from the address of the document memory specified by the address generation means on the condition that the margin release state is reached after the data is read out,
If the margin data is data, the method includes means for displaying a blank space in the digit specified by the cursor on the display section and writing the blank data at an address in the document memory where the read margin data is stored. Characteristic Japanese electronic typewriter line end setting method.