JPH0344335B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention has a word dictionary in ROM, and stores priority information of homophones and user word registration dictionary in RAM.
This invention relates to a kana-kanji conversion processing method that performs kana-kanji conversion processing using these methods.

[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. Conventional Japanese electronic typewriters have, for example, a CRT display with a display screen of 48 characters x 22 lines, as well as a floppy disk device or magnetic disk device for storing dictionary documents. This type of Japanese electronic typewriter has drawbacks such as being unportable and expensive, and it is desired to realize a portable Japanese electronic typewriter.

[Purpose of the invention]

The present invention meets the above requirements, and includes:
It is an object of the present invention to provide a kana-to-kanji conversion processing method that can reduce the size of a storage device that stores dictionary documents for kana-to-kanji conversion and can efficiently perform kana-to-kanji conversion processing.

[Means for solving problems]

Therefore, the kana-kanji conversion processing method of the present invention includes: a word dictionary ROM that stores a plurality of word groups consisting of the reading of a word and a word expressed in kanji having this reading; and a reading of the word and a kanji notation having this reading. A RAM area for a user registered word dictionary that can store multiple user registered word groups consisting of words, and a user registered word that indicates the pronunciation of the word and the order number of the word in the word group or that it is a user registered word. Kana in a Japanese electronic typewriter that is equipped with a RAM area for priority information that can store multiple priority information groups consisting of priority information expressed as ordered sets of symbols, and uses these to perform kana-kanji conversion. This is a kanji conversion processing method, and when performing kana-kanji conversion, it is checked whether a priority information group with the same pronunciation as the input kana character string exists in the priority information RAM area, and if it exists, Kana-kanji conversion is performed while referring to the word dictionary ROM or user registered word RAM area based on the priority information of the priority information group, and if it does not exist, the user registered word dictionary
Kana-kanji conversion is performed while referencing the RAM area with priority over the word dictionary ROM, and when the word written in kanji for the input kana string is determined, the priority information of the priority information group with this reading is determined. Update the priority information so that the word is ranked first, write the priority information group at the beginning of the priority information RAM area, and shift the already stored priority information group backwards. It is characterized by:

[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 edge, you may end up printing the previous line during 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 the line boundaries. For example, there is a character string ``Kiyo 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) Regarding the Kana-Kanji conversion process: A word dictionary is stored in ROM, and priority order information for homophones and a user-registered word dictionary are stored in RAM. and assigned to priority information
Evicting priority information from the RAM area and assigning it to the user registered word dictionary
User registration words are independently purged from the RAM area.

Evict candidates are determined by LRU, but the latest information is added to the beginning of the area and the last information in the area is evicted. Homophones are one group, so if the pronunciation to be registered or to which priority information is to be attached is in the middle of the area, it is brought to the top position and new information is added there.

If there are too many user-registered words, candidates for removal are shown to the user and removed after confirmation.

To make it possible to take out the priority order information of homophone opposite words and a user registered word dictionary.

FIG. 1 is a block diagram of one embodiment of the present invention. In the figure, 1 is a keyboard, 2 is an input buffer, 3 is a kana-kanji conversion mechanism, 4 is a conversion result holding section, 5 is a control section, 6 is a character number counter, 7 is a cursor position register, 8 is an 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, and 16 is a
17 is a format memory, 18 is a document 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. The save buffer 12 is used to save the contents of the 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. If you press the conversion key in this state, "Today is D"
These characters 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 -n (where n is the number of columns in one line).
The above contents are incremented by +n each time a downward cursor movement code is input. 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 the cursor position register 7 is "8", the content of the display head position register is incremented by 1.

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 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 jth line position, and the text is written into the character input line buffer 20 of the jth line of the document memory 18. 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 , ... _bo . 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 , ...c _o . Assume that the character strings in the jth line of the document memory 18 are d ₁ , d ₂ , . . . d _o . Compare the strings d ₁ , d ₂ ...d _o and 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 . this character
The printer 16 may print each character e ₁ , e _{2 ,} . The address generator 22 determines the address when accessing the document memory 18, and the +1 circuit 23 increments this address by +1. Note that the actual hardware for implementing the present invention is that the format memory 17 and the document memory 18 are composed of RAM;
The character generator 14 is composed of ROM, this RAM, a keyboard 1, and a liquid crystal panel 1.
5. The parts other than the printer 16 are comprised of a program memory, a dictionary memory, a microprocessor, and other memory areas.

FIG. 2 is a diagram for explaining the word dictionary, priority information, and user registered word dictionary used in the kana-kanji conversion process of the present invention. In FIG. 2, reference numeral 24 indicates a ROM, 25 indicates a RAM area allocated for storing priority information, and 26 indicates a RAM area allocated for storing user registration words. The ROM 24 stores a plurality of word groups each consisting of a word's reading and a word written in kanji having this reading. As shown in the diagram, words written in kanji that have the reading ``kiko'' include ``climate,'' ``port call,''``contribution,'' and ``stomata,'' but these constitute one word group. . The RAM area 25 stores a plurality of priority information groups each consisting of word readings and priority information of words written in kanji having these readings. The priority information group shown in Figure 2 consists of the character string 3,2, which indicates that the priorities are ``contribution,'' ``port call,''``climate,'' and ``pore.'' Note that the numbers such as "3" and "2" in the priority information group indicate the order numbers of the words written in Kanji characters stored in the word group with the reading "Kiko". In the RAM area 26,
A plurality of user-registered word groups each consisting of a word's reading and a word written in kanji having this reading are stored. In the illustrated example, the user-registered words that have the pronunciation "Kikou" are "Kikagyou" and "Kikyou."
Note that the size of the RAM area 25 is fixed;
The size of the RAM area 26 is also fixed. FIG. 3 shows an example of the contents of the priority group including the contents of the user registration dictionary. In this example, the priorities are "contributions,""yourschool,""climate,""yours," and "port calls."

Assume that the kana character string "Kikou" is input and the conversion key is pressed. Then, first
The RAM area 25 is searched to see if there is a priority information group having the pronunciation "Kikou".

If there is no priority information group with the reading "Kikou" in the RAM area 25,
RAM area 26 is searched. RAM area 26
Since there is a user registered word group with the pronunciation "Kikou", the first word "Kigaku" is read out and displayed on the liquid crystal panel 15. When the conversion key is pressed again, "Kiki" is read from the RAM area 26 and displayed on the liquid crystal panel 15. When the next character is input while "Kikou" is displayed, the word written in kanji for "Kikou" is determined. Once it is confirmed that “Kiko” is a kanji character string for “Kikou”,
In the user registered word group with the pronunciation of "Kikou", "Kikou" is the first word, "Kikou" is the second word, and the priority information group "Kikou" is written at the beginning of the RAM area 25. At this time, the priority information group that has already been written in the RAM area 25 is shifted so that it follows the priority information group having the pronunciation "Kikou". At this time, if there is not enough space, the last one will be kicked out. If “nobleman”
When the conversion key is pressed under the condition where is displayed, the ROM 24 is searched with the key "Kikou". Then, "climate" is read from the ROM 24 and displayed on the liquid crystal panel 15. "climate"
When the conversion key is pressed while "Port Call" is being displayed, "Port Call" is read from the ROM 24 and displayed on the liquid crystal panel 15. If the following characters are entered while "Port Call" is displayed, the priority information group with the content "Visiting 2" will be displayed.
The priority information group that is written to the beginning of the RAM area 25 and already stored is shifted backward.

If a priority information group with the pronunciation "Kikou" exists, this priority information group is read out. Assuming that the priority information group having the pronunciation "Kikou" is Kikou 3, u, 1, "Contribution" is read from the ROM 24 and displayed on the liquid crystal panel 15. If the following characters are entered while "Contribution" is displayed, "Kikou 3, u,
The priority information group "1" is in RAM area 2.
The priority information group that is written at the beginning of No. 5 and already stored is shifted backward. If the conversion key is pressed while "Contribution" is displayed, "Your school" is read from the RAM area 26 and displayed on the liquid crystal panel 15. "Your school"
is determined, the priority information group "Kiko u, 3, 1" is created as described above.
It is written to the RAM area 25. When the conversion key is pressed while "Your school" is displayed,
“Climate” is read from the ROM 24 and displayed on the liquid crystal panel 15. When the "climate" is determined, the priority information group "Kikou 1, 3, u" is written into the RAM area 25 as described above. When the conversion key is pressed while "climate" is displayed, "Mr.
is read out and displayed. Assuming that "Kikou" is confirmed, the contents of the user registration word group "Kikou" will be changed to "Kikou, Youkoki, Your school", and the priority information group of "Kikou u, 3, u, 1" will be changed as described above. and stored in the RAM area 25. When the conversion key is pressed while "Your Honor" is displayed, "Port Call" is read from the ROM 24 and displayed. When the "port call" is confirmed, the priority information group "Kikou 2, 3, u, 1" is assigned to the RAM area 2 as described above.
5 is written. When the conversion key is pressed under the displayed state of "port call", "pore" is read from the ROM 24 and displayed. "Stomata"
Once determined, the priority information group “Kikou 4, 3, u, 1” is stored in the RAM as described above.
It is written in area 25.

When a user registers the word "Kikou Organization", the user registered word group "Kikou" is updated to "Kikou Organization, Your High School, Mr.
The user registration word group written to the beginning of the RAM area 26 and already stored is shifted backward. When the word "Kiki Kibue" is registered as a user word, if the pronunciation "Kiki" does not exist in the user registered word group,
The user-registered word group “Kiki Kibue” is written as is at the beginning of the RAM area 26,
Already stored user registered word groups are shifted backwards.

[Effects of the Invention] As is clear from the above description, according to the present invention, it is possible to downsize a storage device that stores dictionary documents for kana-kanji conversion, it is possible to efficiently perform kana-kanji conversion, and it is possible to improve the storage area. It is possible to achieve effects such as easy management.

[Brief explanation of drawings]

FIG. 1 is a block diagram of one embodiment of a Japanese electronic typewriter to which the present invention is applied; FIG. 2 is a diagram illustrating a word dictionary, priority information, and user registered word dictionary used in the present invention; FIG. 3 is a diagram showing an example of the contents of the priority group including the contents of the user registration dictionary. 24...ROM for storing a word dictionary, 25...
RAM area for storing priority information, 26... RAM area for storing user registered word dictionary.

Claims (1)

[Scope of Claims] 1. A word dictionary ROM that stores a plurality of word groups consisting of the reading of a word and a word written in Kanji having this reading, and a user consisting of a reading of a word and a word written in Kanji having this reading. A RAM area for a user registered word dictionary that can store multiple registered word groups, and an ordered set of word pronunciations and word order numbers in the word groups or user registered word symbols indicating that the words are user registered words. This is a kana-kanji conversion processing method for Japanese electronic typewriters, which is equipped with a priority information RAM area that can store a plurality of priority information groups consisting of priority information groups, and uses these to perform kana-kanji conversion. When performing kana-kanji conversion, it is checked whether a priority information group with the same pronunciation as the input kana character string exists in the priority information RAM area, and if it exists, the priority information group is Kana-kanji conversion is performed while referring to the word dictionary ROM or user registered word RAM area based on the priority information, and if it does not exist, the user registered word dictionary ROM area is used.
Kana-kanji conversion is performed while referencing the RAM area with priority over the word dictionary ROM, and when the word written in kanji for the input kana string is determined, the priority information of the priority information group with this reading is determined. Update the priority information so that the word is ranked first, write the priority information group at the beginning of the priority information RAM area, and shift the already stored priority information group backwards. A Kana-Kanji conversion processing method featuring the following.