JPH09146934A - Japanese syllabary to chinese character conversion device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a KANA(Japanese syllabary)-KANJI(Chinese character) conversion device having a function which detects inadequate KANJI, etc., in character units and informs a user of it and a function which substitute characters in adequate notation for the detected characters. SOLUTION: A special character retrieval part 120 detects characters, constituting a KANA-KANJI mixed character string candidate obtained through the conversion by a KANA-KANJI conversion part 100, one by one by referring to a special character dictionary 114, and stores them in a candidate storage part 130 so that specified identifiers are made to correspond to them. A discrimination display instruction part 140 instructs to distinctively display them corresponding to the identifiers and a candidate display generation part 160 generates a candidate window, etc. Further, a special character which is distinctively displayed is selected and a special character substituting means 210 is actuated to substitute a KANA character or synonym of proper expression.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a kana-kanji conversion device, and more particularly to a kanji conversion device for converting at least an input kana-character string into a plurality of kana-kanji mixed character string candidates and displaying the candidates.

[0002]

2. Description of the Related Art A kana-kanji conversion device designed to handle Japanese on a computer inputs a kana character string and converts it into a kanji-kana mixed sentence. The performance of the Kana-to-Kanji converter is remarkably improved, and the conversion accuracy itself is reaching the practical level due to the verification of the dependency between phrases and the adoption of the minimum cost method. Therefore, more advanced services are required for kana-kanji conversion devices.

In a document editing device such as a word processor,
Some have a document proofreading function. For example, an inappropriate expression, a word, or the like is detected and identification display is performed. Also, some kana-kanji conversion devices have been controlled so as not to display inappropriate candidates when displaying the converted kana-kanji mixed character string candidates.

[0004]

However, it is inefficient to activate the proofreading function of the word processor or the like after inputting in the kana-kanji conversion device as in the conventional case, and it is desirable to detect it in the stage of the kana-kanji conversion device.

Further, the conventional kana-kanji conversion device capable of detecting inappropriate words etc. handles the converted kana-kanji mixed character string candidates as a unit. Therefore, the kanji in the candidates cannot be detected character by character. Specifically, there is a case in which the candidate "day of the week", "Monday", has not been acquired in a specific grade of elementary school and wants to write "Month day". At this time, in the conventional kana-to-kanji conversion device, "Monday" itself is not displayed as a candidate, or "Monday" is displayed as a whole. Therefore, the user could not know which character in "Monday" was the problem.

Further, in the conventional kana-kanji conversion device, in the above example, "Monday" is detected after "Monday" is detected as inappropriate.
It was necessary to re-enter "you" and "day" individually. It is more desirable to perform the operation of replacing "day" with "you" when "Monday" is detected during kana-kanji conversion. In particular, it is desirable to activate a means for replacing an abusive word, an in-house document prohibited word, etc. with an appropriate expression upon detection.

The present invention has been made to solve the above problems,
An object of the present invention is to provide a kana-kanji conversion device that detects an inappropriate expression character by character and informs the user. Another object of the present invention is to provide a kana-kanji conversion device having a function of replacing a detected character with an appropriate expression.

[0008]

A kana-kanji conversion device of the present invention is a kana-kanji conversion device for analyzing an input kana-character string by referring to a dictionary and converting it into a kana-kanji mixed character string. A kana-kanji conversion unit that searches a kana-kanji conversion dictionary from a character string to create a plurality of kana-kanji mixed character string candidates, and a special character dictionary that stores predetermined special characters,
A special character search unit that collates the characters that form the kana-kanji mixed character string candidate with the special character dictionary, adds an identifier to the matched characters, treats the character having the identifier as a special character, and distinguishes it from other characters. An identification display instructing unit for instructing identification display, and a candidate display creating unit for creating a candidate display for a part or all of the kana-kanji mixed character string candidates based on an instruction from the identification display instructing unit. Characterize.

The kana-kanji conversion device described above searches the special character dictionary for the candidates created by the kana-kanji conversion unit, and determines the special characters in character units in the candidates. A special identifier is attached to the special character, and other characters are identified and displayed. Therefore, it is possible to identify and display each character that constitutes a character string candidate mixed with kana and kanji.

Further, the identification display instructing unit includes a display mode changing instructing unit for instructing to change the display mode of the special character itself from other characters when the special character is distinguishable from other characters. Since it is characterized in that it is included, it can be distinguished from the special character itself detected by color coding and the like, and the usability for the user is improved. Since the special character is composed of at least one or more Chinese characters, symbols, etc., it is possible to detect a desired Chinese character or the like in units of at least one character.

Further, the special character is classified into a plurality of types, and a type identifier storage section for storing an identification identifier corresponding to the type of the special character in the special character dictionary in association with the special character, A type identifier search unit that searches the type identifier corresponding to the special character searched by the special character search unit, and the kana kanji character that distinguishes it from other characters or other special characters according to the type of the type identifier A special character identification display instructing section for instructing display of mixed character string candidates. That is, the kana-kanji device further classifies special characters into a plurality of special characters and has a type identifier corresponding to the type of each special character. Therefore, the identification display according to the type of special character is possible.

On the other hand, it is also effective that the kana-kanji conversion device is provided with a condition setting section for setting the presence or absence of the identification display corresponding to the identifier and the identification display method in the identification display instruction section. With the condition setting unit, the display condition of each special character, that is, the display method such as the presence or absence of display and the display color can be set according to the type of document to be created.
Since the types of the special characters include at least personal name characters, emergency kanji, and grade-specific kanji, for example, when creating a document for a specific grade, the kanji learned in a grade higher than that grade can be identified and displayed. .

Further, since the kana-kanji conversion device described above is provided with guidance display means for displaying guidance regarding the special character at the same time as the special character identification display or by a predetermined operation after the special character identification display.
The user can easily know how the special character was retrieved.

Further, it is also preferable to provide a special character replacing means for searching the replacement dictionary for the special character and replacing it with another character by a predetermined operation after the special character is identified and displayed. Special characters are often displayed because their use is limited, and it is very effective to replace the special characters with appropriate characters.

Further, since the special character replacing means includes a synonymous character replacing section that searches the replacement dictionary for the special character to be replaced and converts the special character into a synonymous character, the characters prohibited in the in-house document Words can be replaced with other expressions.

Further, the special character replacing means includes a kana character replacing section for converting the special character to be replaced into a kana character by searching the replacement dictionary. Therefore, if a Kanji character by grade is detected, it can be replaced with a kana character.

Further, it is also preferable that the special character replacing means has a replacement candidate learning means for registering a kana-kanji mixed character string candidate created by a replacing operation in the kana-kanji conversion dictionary. For example, if "Monthly day" or the like that replaces "Monday" is registered in the Kana-Kanji conversion dictionary, "Monday" and "Monthly day" will be displayed as conversion candidates from the next time, and selection will be easy.

In the kana-kanji device of the present invention, a menu display means for displaying a special character designating section for designating the identified special character and a plurality of processing means activated for the designated special character. May be provided. Particularly, if the guidance display means, the special character replacement means, and the like are provided in the menu display, the user can easily see the guidance display and activate desired processing.

Further, since the guidance or the menu is displayed in the vicinity of the special character displayed for identification, the user can see the guidance display or the menu display in association with the displayed special character. it can.

Further, when the special character is composed of a plurality of consecutive characters, the identification display instructing unit preferably has a special word display instructing unit for displaying the special character as a special word so as to be integrally viewed. When the continuous characters are identified and displayed, it is possible to determine whether each character is detected as a special character or a special word composed of continuous characters.

On the other hand, another kana-kanji conversion device of the present invention is
A kana-kanji conversion device that analyzes an input kana character string by referring to a dictionary and converts it into a kana-kanji mixed character string, which is given to a predetermined special character that is handled separately for general words. An identifier stored in the dictionary corresponding to a special character, and a kana-kanji conversion unit that searches the dictionary from the kana-character string to create a plurality of kana-kanji mixed character string candidates, and the kana-kanji mixed character string When or after creating a candidate, a special character search unit that searches the identifier corresponding to the special character that constitutes the Kana-Kanji mixed character string candidate, and stores the candidate in the candidate storage unit together with the Kana-Kanji mixed character string candidate. , A special word display instruction unit for instructing to display the special word differently from other characters, and a part or all of the kana-kanji mixed character string candidates based on the instruction of the special word display instruction unit. A candidate display creation unit that creates a supplementary display, a display unit that displays the candidate display, and an identification display of the special word, and then performs a predetermined operation to search the replacement dictionary for the special character and replace it with another character. Special character replacement means,
It is characterized by having. The present kana / kanji device does not require a special character dictionary for storing special characters, and the device can be easily configured. In addition, the special word is detected in the unit of the kana-kanji mixed character string candidates registered in the dictionary, is displayed for identification, and the replacing means is activated. Therefore, although it is a character string candidate unit mixed with kana and kanji, it has an effect that a replacement operation can be performed.

[0022]

Other Embodiments As other embodiments of the present invention, various embodiments such as one in which the input means is a handwriting recognition means, one in which an optical character reading device such as a scanner is used, and one which is a voice recognition device are considered. You can Furthermore, this kana-kanji conversion device can be used alone as a word processor, or can be used by incorporating it into various devices that require kana-kanji conversion. It can also be realized by being incorporated in a computer operating system. When implemented as software in a device using a computer, it is possible to handle the software in the form of a flexible disk or a CD-ROM, or to distribute it via personal computer communication or the like.

A software program (application program) for realizing the functions of these respective units is stored in a portable storage medium (portable storage medium) such as a floppy disk or a CD-ROM, and the main storage of the computer system is changed from the portable storage medium. Transferred to memory or external storage. An apparatus for providing these software programs is provided via a communication line, and a software program for realizing the above kana-kanji conversion method is provided from the supply apparatus to the main memory of the computer system or an external storage device via the communication line. It may be transferred. For example, it is possible to download from a host computer for personal computer communication via a telephone line or receive distribution using satellite broadcasting.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION Next, a preferred embodiment of a kana-kanji conversion device according to the present invention will be described with reference to the drawings.
FIG. 1 is a functional block diagram of the kana-kanji conversion device of the first embodiment, and FIG. 2 is a block diagram showing a schematic configuration of a computer in which the kana-kanji conversion device is realized.

For convenience of description, first, the hardware configuration of the computer 10 will be described with reference to FIG. This computer 10 has a local bus 22 as shown.
C of the arithmetic processing unit 20 via the PCI bridge 30 that connects the arithmetic processing unit 20 and the local bus 22 connected to the PCI bus 32, which is one of the external buses, to the PCI bus 32.
Controller unit 4 that is accessed by the PU 21 or the like
0, an I / O unit 60 in which devices controlling various I / O devices and the like are connected to the ISA bus 42 that is a low-speed external bus, and a keyboard 72, speakers 74, and C that are peripheral devices.
It is composed of RT76 and the like.

The arithmetic processing unit 20 includes a CPU 21 (a Penti manufactured by Intel Corporation in this embodiment) as a central arithmetic processing unit.
um), a cache memory 23, its cache controller 24, and a main memory 25. The PCI bridge 30 has a high-speed PCI bus 32.
Is a controller having a function of controlling. CPU2
The memory space handled by 1 is expanded to a logical address wider than the actual physical address by various registers prepared inside the CPU 21.

The controller section 40 is a monitor (CRT).
A graphics controller (hereinafter, referred to as a VGA) 44 for controlling the display of an image on a computer 76; a SCSI controller 46 for controlling data transfer with a connected SCSI device;
It comprises a PCI-ISA bridge 48 which manages the interface between the I bus 32 and the lower ISA bus. V
The GA 44 can display 640 × 480 dots and 16 colors on the CRT 76. It should be noted that a character generator that stores a font for display, a graphic controller that receives a predetermined command and draws a predetermined figure, and a video memory that stores a drawn image, etc.
Although it is mounted on the VGA 44, since these configurations are well known, they will be described later as necessary.
Has been omitted.

The ISA bus 42 connected via the PCI-ISA bridge 48 is an input / output control bus to which various I / O devices are connected, and includes a DMA controller (hereinafter simply referred to as DMA) 50 and real time. Clock (R
TC) 52, two composite I / O ports 54 and 55, a sound I / O 56, a keyboard interface (hereinafter referred to as KEY) 64 that controls the interface with the keyboard 72 and the mouse 73, and an interrupt controller that performs interrupt control with priority. (Hereinafter referred to as PIC) 6
6. Timer 6 that generates various time counts and beeps
8 and the like. In addition, the ISA bus 42,
An ISA slot 62 on which an expansion board can be mounted is connected.

The composite I / O port 54 has ports for inputting and outputting signals for controlling the floppy disk device 82 and the hard disk 84 in addition to parallel output and serial output. A printer 88 is connected to the parallel input / output via a parallel port 86, and a modem 92 is connected to the serial input / output via a serial port 90. In another composite I / O port 55,
A scanner 93 and a tablet 94 capable of handwriting input are connected. A microphone 96 can be connected to the sound I / O 56 in addition to the speaker 74 described above. In addition to these configurations, standardized I / O channels are often prepared in DOS / V machines, but illustration and description thereof are omitted in this embodiment.

Next, the functions executed by the hardware thus constructed will be described with reference to FIG. The configuration and operation of each unit shown in FIG. 1 will be outlined, but the processing performed here is executed by the central processing unit (CPU 21) based on the data input from the keyboard 72, the scanner 93 or the tablet 94. . This CP
All processing is performed by U21. Regarding kana-kanji conversion, when a kana-kanji conversion is instructed by a predetermined operation after a character string is input from the keyboard 72 or the like, a predetermined interrupt process is activated and the acquired character string (kana-character A device driver that converts a string or a character string containing Chinese characters) and finally converts it into a mixed Kana and Chinese character string is started. In the case of a computer capable of parallel processing, kana-kanji conversion may be performed by one application (input method), and the conversion result may be passed to a required application. In this case, the input method collectively accepts the input from the keyboard 72 or the like.

Next, the kana-kanji conversion device of this embodiment will be described with reference to FIG. This kana-kanji conversion device is realized by the computer 10 described above in which its hardware and software are integrated.
Is a block diagram including the parts realized by software. The kana-kanji conversion device has a control part 170 as a center, an input part 180 for receiving an input from a keyboard 72 or a two-button mouse 73 via an operating system, a dictionary 110 stored in a hard disk 84 together with a plurality of kana-kanji conversion programs. , A conversion candidate for a kana-kanji mixed character string by referring to a dictionary for the kana character string input by the input unit 180 and performing segmentation and segmentation processing (hereinafter appropriately referred to as “candidate”)
Kana-to-Kanji conversion unit 100 for generating, a candidate storage unit 130 for temporarily storing the conversion candidates, and a dictionary 1 when creating candidates.
10 is searched to determine whether or not a predetermined special character is present in the character string that constitutes the candidate. In the case of a special character, the corresponding identifier (the type identifier is set according to the type of the special character Is stored in the candidate storage unit 130, an identification display instruction unit 140 for instructing the identification display of special characters by referring to the identifier of the candidate storage unit 130, the special character search unit 120, and an identification display instruction. A condition setting unit 150 that sets search conditions and identification display conditions in the unit 140, a candidate display creation unit 160 that creates a candidate display after identification display in accordance with an instruction from the identification display instruction unit 140, a set candidate display and other menu displays A display unit 190 for displaying guidance display and the like on the color CRT 76 is provided.

Further, the kana-kanji conversion device of the present embodiment has a processing means 200 which is called at the same time as or after the candidate identification is displayed and a menu display means 220 for displaying or calling the processing means. There is.

The kana-kanji conversion unit 100 also has an input kana character buffer 102 that holds the kana character string input therein until the conversion process of the kana character string is completed. The dictionary 110 includes a kana-kanji conversion dictionary 112 that the kana-kanji conversion unit 100 refers to when segmenting a phrase or creating a character string candidate in which kana-kanji mixed with each phrase is created, and a special character search unit 12
The special character dictionary 114 referred to from 0 and the synonym dictionary 116 appropriately referred to from the kana-kanji conversion unit 100 and the special character search unit 120 are provided. The kana-kanji conversion dictionary 112 may be integrally configured, or may be separately configured as a standard dictionary, a user dictionary, and a technical term dictionary.

As shown in FIG. 4, the structure of the special character dictionary 114 has special characters (predetermined Chinese characters, symbols, etc., in FIG. 4, I, Karasu, Ryo, bandit, manual) as headings, and corresponding type identifiers, Kana candidates and synonym candidates for reading kana in special characters are registered.

The special character search unit 120 is activated when the kana-kanji conversion unit 100 creates a kana-kanji mixed candidate, and checks whether the special character dictionary 114 has a special character in the character string forming the candidate. When the special character corresponding to the special character is searched and found in the special character dictionary 114, an appropriate synonym corresponding to the special character is called by the identifier searching unit 122 and the synonym replacing unit 212 that searches and acquires the corresponding type identifier. Synonym search unit 12 acquired from the special character dictionary 114
6. A kana search unit 124 that is called by the kana character replacement unit 214 and similarly acquires a kana candidate corresponding to a special character is provided. The special character search unit 120 stores the searched identifier in the candidate storage unit 130 in association with each character of the kana-kanji mixed character string candidates.

The identification display instructing section 140 is the candidate storing section 130.
When the special character is mixed with the candidate, the identification display is instructed and the candidate is given to the candidate display creation unit 160. The special character identification display instructing unit 142 determines the type of a special character from a special character type identifier that represents a type of special character (for example, kanji that can be used according to grade, kanji for personal names, kanji for emergency, forbidden words in company documents, bad words, etc.). It is determined and an identification display according to the type is instructed. The candidate display itself may not be changed from the identification display, but may be displayed in another guidance window or the like, or the display mode of the special character itself may be changed by using the display mode change instruction unit 146, for example, the color or font may be changed. good. When the special character is composed of two characters such as “manual”, the special word display instruction unit 144
The display mode change instruction unit 1 so that these two characters can be seen as one
Instruct 46. This is to distinguish it from the case where "hand" and "movement" are selected separately.

The menu display means 220 is activated at the same time as the display of the candidate including the identified special character or by a predetermined operation after the display. Candidate storage unit 13
Get the currently displayed special character identifier from 0,
Guidance display according to the type of the special character, for example, ""
A guidance message such as "This Kanji is not a regular Kanji" is displayed. Further, the processing unit 200 has a processing unit start instruction unit 224 for starting the process prepared in the processing unit 200, and a start button for starting the process is created on the menu. In this embodiment, the menu display unit 220 acquires the guidance display data from the processing unit 200, the display data of the start button is manufactured in-house to create the menu screen, and the menu storage unit 222.
To save. This is displayed on the display unit 190.

The processing means 200 is a collection of processes which can be executed simultaneously with or after the identification display of the candidates including the special characters. The special character replacing means 210 supports the replacement of special characters when they are inappropriate. In the case of the present embodiment, the synonym replacement unit 212 is called by the processing means activation instruction unit 224 and activated. The special character currently selected is acquired, and based on this, the synonym search unit 126 searches the special character dictionary 114, and if there is a corresponding synonym, this is displayed in a menu. When the user selects the displayed synonym, the special character is replaced with the synonym and stored again in the candidate storage unit 130, and the identification display instructing unit 140 is instructed to update the display. Similarly, the kana character replacing unit 214 is called by the processing means activation instructing unit 224, the kana searching unit 124 searches the special character dictionary 114 to acquire the kana character, and when the user gives an instruction, the special character is identified. It is replaced with a kana character and stored again in the candidate storage unit 130. These replacement means may be directly called by selecting a special character with the mouse. The guidance display means 202 is called by the identification display instructing section 140 and can display guidance regarding special characters. Further, it may be called from the menu display means 220, or the guidance data can be provided to other means.

Next, the flow of identifying and displaying special characters will be described with reference to FIG. When the kana / kanji conversion unit 100 acquires the kana / kanji characters in step A1, the kana / kanji conversion dictionary 112 is searched in step A2, and one kana / kanji mixed character string candidate is created in step A3. Here, the special character searching unit 120 is activated to search the special character dictionary 114 for each character of the candidates. Special character dictionary 1 at step A5
If there is a character that hits 14, the identifier search unit 122 searches for the type identifier, associates it with a special character, stores it in the candidate storage unit 130 as one of the candidates, and returns control to the Kana-Kanji conversion unit 100. . Of course, the kana-kanji conversion unit 100 may control the storage in the candidate storage unit 130.

The kana-kanji conversion dictionary 112 determines in step A6 whether all the kana-kanji conversion dictionaries 112 have been searched. If not, the process returns to step A2 and the kana-kanji conversion dictionary 112 is returned.
Is continued, and the special character of each candidate is similarly attached with a type identification flag and stored in the candidate storage unit 130. When the dictionary search is completed, the identification display instructing unit 14 is operated in step A7.
0 is searched for the identifier of each character of the kana-kanji mixed character string candidate stored in the candidate storage unit 130, and the identification display according to the identifier is instructed. In step A8, the candidate display creation unit 160 and the display unit 190 identify and display the special character. A specific display form will be described later.

FIG. 4 shows the structure of the special character dictionary 114.
The type identifier, the kana candidate, and the synonym candidate are registered in the same record in correspondence with the special character serving as the headline.
“I” is attached with a type identifier “08” indicating a personal name and kanji, and “I” is registered as a kana candidate. Synonyms have not been registered. The special character "manual" is a special character consisting of two characters. Although not registered in the dictionary of FIG. 4, "hand""movement"
Even if each is registered as a special character, a longer (many characters) “manual” is selected and its identifier is detected. “Manual” is positioned as an in-house document prohibited word and is given a type identifier “A0”. There is no kana candidate, and “manual” is registered as a synonym candidate. In this embodiment, the special character dictionary 114 has a synonym field and has a synonym as a concrete character string, but the synonym dictionary 116 independent of the synonym field is provided.
A synonym may be obtained by providing a pointer pointing to and pointing to the synonym dictionary 116 with the "manual" heading.

FIG. 5 shows the type identifiers corresponding to the types of special characters used in this embodiment. As the special characters, the type identifiers "01" to "06" are set to the characters (mainly Kanji) learned from the first to sixth years of elementary school for each grade.
Furthermore, "07" is associated with the character to be learned in junior high school or higher, "08" is associated with the personal name kanji, and "09" is associated with the emergency kanji. Although the personal name kanji is originally included in the emergency kanji, in the present embodiment, different identifiers are added for distinction.
When creating a document for elementary school students, type identifier "0
Special characters other than "1" to "06" are preferably displayed for identification. In the text for the third grade of elementary school, kanji of 4 years or older are displayed as unacquired characters. Further, the in-house document prohibited word is a word in which one of the words is prohibited when there are a plurality of synonyms. For example, when there are synonyms “manual” and “manual”, the internal documents are unified as “manual”, and when trying to convert to “manual”, an identification display is given to warn.

The obnoxious word is also a word that is not normally used, and is given the identifier "A1" as a special word. In this embodiment, the type identifier A1 is controlled by the identification display instructing unit 140 so that the candidates themselves are not displayed.
Other special words include prohibited words and discriminative words. Of course, the user is not limited to these, and may be properly set by the user. The special character dictionary 114 of this embodiment is provided with a support program that allows the user to freely add and delete special words, type identifiers, kana candidates, and synonyms.

FIG. 6 is a diagram for explaining the internal structure of the identification display instructing section 140. The candidate character storage unit 132 is a unit for storing the Kana-Kanji mixed character string candidates created by the Kana-Kanji conversion unit 100, and the identifier storage unit 134 stores the type identifier corresponding to each of the candidate characters. Is set to. Now, assuming that the candidate display shown in FIG. 11A is being performed, “below” that constitutes “below” is elementary school 4
The year kanji is “04”, “bottom” is the elementary year 1 kanji, “01”,
"Ni" is a hiragana that you can learn in the first year of elementary school, and "01"
Are stored in association with each other. It should be noted that hiragana, katakana and the like may be used as non-kanji and a type identifier such as "00" may be attached. Further, the type identifier may be set in detail to distinguish it from the 1st semester, 2nd semester, and 3rd semester of elementary school.
Among the characters that make up the other candidates, "ryo" is a junior high school or higher, crow is an emergency, and "i" is a person name kanji type identifier. Since an identifier is attached to each character in this manner, it is possible to perform identification display or replacement processing on a character-by-character basis.

Based on these identifiers, the identification display instruction unit 14
At 0, the identification display is instructed. The result of the identification display is shown in FIG. The line currently being edited,
On the echo line 300, a character string candidate including kana and kanji currently selected is representatively displayed. In the kana-kanji conversion device of the embodiment, the selected candidate is highlighted, but in the figure, it is surrounded by a frame for the sake of convenience. Only “” is displayed in red for the candidate “”. It is shown by hatching in the figure. In addition, "crow" is displayed in yellow and "thief" is displayed in red. In addition, “I”, “incense”, and “boar” are identified and displayed by the set colors.

FIG. 7 shows a special character identification display setting menu for performing the display of FIG. 11 (a). This menu is activated by the condition setting unit 150 and the identification display instructing unit 140
For each module inside, what kind of identification display is made for the detected identifier is set. In the menu, for the grade Kanji, "junior high school" is selected by the button indicating the grade, and "above" is selected by the button indicating the condition. With this, the kanji learned in junior high school and above are targeted. The button indicated as “display” is a button for selecting whether to display candidates including special characters that meet the conditions. That is, since "how" in Fig. 11 (a) includes the Chinese character "like" in junior high school and above,
The control is performed so that the candidate "how" itself is not displayed. In this case, the identification display instruction unit 140 is the candidate storage unit 1
“How” in 30 is deleted. Alternatively, the candidate storage unit 13
The candidate of 0 may be maintained and the candidate display in the candidate display creation unit 160 may not include “how”. In this embodiment, the Kanji of the school year is set to "display". Also,
When the presence / absence of color classification is selected in the color-coded display item and “yes” to the color-coded is selected, the color can be further selected by the color button. In the present embodiment, "red" is selected, and as a result, "like", "thief", and "ka" are displayed in red as the kanji learned in junior high school and above in FIG. 11 (a). These color-coded displays are instructed by the display mode change instructing unit 146.

Similarly, in the special character display setting menu, the personal name kanji "I" is displayed in blue, the emergency kanji "crow" is displayed in yellow, and the in-house document prohibited words are shaded. "Do not display" is selected for the hate word, and the candidate itself is not displayed. Although the candidates that are displayed as an identification call the user's attention, there is still room for the user to make a forced choice, whereas the hate word does not display the candidates from the beginning, so the selection itself is unsuccessful. It will be possible. It is preferable that the abusive word, the discriminative word, etc. be processed in this way. Further, although it is displayed as a candidate, it may be set to be impossible to be converted (incapable of being taken in by the kana-kanji conversion unit 100).

As the special character display setting menu, a plurality of menus with different conditions can be prepared and stored in the condition setting section 150. Internal documents, external documents,
If the menu can be selected according to the type of document such as personal document, the usability will be improved. A plurality of setting menus are prepared to store the condition settings so that the user can select them. When editing a document, even if the condition setting is automatically selected by distinguishing from the file name of the document file (especially the extension specified by MS-DOS), the stored directory name, and the folder name. Good.

FIG. 8 shows a specific flow of the identification display by the identification display instructing section 140. After all the kana-kanji mixed character string candidates are stored in the candidate storage unit 130, the identification display instruction unit 140 is called. Identification display instruction unit 14
0 calls the candidates one by one, executes this flow for each candidate, designates each color (changes the attribute of the color designation corresponding to each character to the designated color), and then sends it to the candidate display creation unit 160. In step B1, the characters constituting each candidate and the corresponding type identifier are acquired, and in step B2, first the grade kanji is judged. Figure 7 shows the Kanji requirements for grades
Since the menu indicates that it is in junior high school or higher, it is judged from the type identifier whether it is in junior high school kanji or higher, and for the character judged as YES, the red character is instructed by the special character identification display instructing section 142 in step B3. It Characters marked as NO are not displayed for identification.

Similarly, in step B4, it is determined whether or not the person's name is kanji, and if so, it is instructed to display in blue in step B5, it is determined in step B6 if it is in emergency kanji, and if YES, it is instructed to be displayed in yellow. In step B8, it is determined whether the word is an in-house document prohibited word. An example of in-house document prohibited words is shown in the window display of FIG. This is a case where the word “manual” is registered as an in-house document prohibited word for the candidate “manual machine”. The "hand" and "movement" that compose "manual" are not in-house document prohibited words, but correspond to special characters when the word "manual" is used. Such special characters set at the word level include abusive words, discriminative words, broadcast prohibited words, and the like. Of course, you may set the in-house document prohibition word at the one-character level. In this embodiment, in-house document prohibited words are displayed in a shaded manner. In addition, special characters consisting of two or more characters are surrounded by a frame or the like so that they can be viewed as one. The special word composed of two or more special characters is instructed to be displayed by the special word display instructing section 144.

In step B10, it is determined whether or not the character forming the candidate does not include the abolition word, and if any of the characters forming the candidate is the abolition word, the identification display instructing unit 140 causes the candidate storage unit to be displayed. The corresponding candidate in 130 itself is deleted. This is because the dislike word candidates are set to "not display" in the menu of FIG.

The above processing is repeated for all the candidates stored in the candidate storage unit 130, and after the identification display is instructed, the candidate display creation unit 160 creates the candidate display.

The identification display of special characters has been described above. However, the present embodiment is not limited to this, and means for performing guidance display (explanation display) and means for replacing special characters with respect to the identified special characters are provided. Have Less than,
These means will be described.

FIG. 11 shows how the menu including the guidance display is displayed after the special character is identified and the replacement means is activated. First, the kana character "how"
When is input and Kana-Kanji conversion is instructed, the first candidate “below” is displayed on the echo line 300.
Since it is not a desired candidate, when the conversion key is operated, the candidate window 310 is displayed next, as shown in (a), and 9 candidates out of all the candidates 60 are displayed. Note that the menu display 320 including the guidance display is displayed near the special character. It is desirable that the menu display 320 be displayed right beside, right above, and right below the special character, but if it is difficult to display the candidate window, etc., the range in which the correspondence with the special character being displayed can be clearly defined (in the present application, This state is called "neighborhood").

When the user selects "how" which is a desired candidate with the mouse 73 or the like, the candidate of the echo line 300 is changed to "how", and "how" is changed by the selection cursor 312 in the candidate window 310. It is highlighted.

Here, since "Ryo" is displayed in red, (b) shows the state after the user double-clicks on "Rho" with the mouse 73. In (b), the menu display 320 is displayed by the menu display means 220 in FIG. 1, and the guidance display 322 is displayed inside. “Ryo” displays a guide to indicate that it is a kanji that you will learn in junior high school and above, helping users to make decisions. Similarly, guidance displays are provided for personal name kanji, emergency kanji, in-house document prohibited words, etc.

FIG. 9 shows a flow when the guidance is displayed. When a special character is selected in step C1, the menu display means 220 passes the special character to the guidance display means 202. The guidance display unit 202 acquires the type identifier corresponding to the received special character from the candidate storage unit 130 in step C2. In step C3, the guidance display means selects the guidance data corresponding to the type identifier from the guidance data of each kind stored inside, and passes the guidance data to the menu display means 220.

Further, in step C4, the menu display means 220 calls the synonym replacement unit 212 to determine whether or not there is a synonym corresponding to the selected special character "like" in the special character dictionary 114. Similarly, the kana character replacement unit 214
Also, the presence / absence of a kana character candidate corresponding to the special character dictionary 114 is determined, and the result is received to change the display mode of the kana character replacement section activation button 324 and the synonym replacement section activation button 326. Since the synonym corresponding to “” is not registered in the special character dictionary 114, an identification display indicating that the activation is not possible is displayed in FIG. 11B. After acquiring these pieces of information, the menu display unit 220 creates a menu and stores it in the menu storage unit 222. Step C
The menu display is performed based on the menu data stored in step 5. The guidance display 322, the kana character replacement section activation button 324, the synonym replacement section activation button 32
6, and a menu end button 328 is displayed.

In FIG. 11B, when the kana character replacement section start button 324 is selected, the kana character replacement section 214 is started. This situation will be described with reference to the flowchart of FIG. When the kana character replacement unit 214 is activated in step D1, the special character to be replaced is acquired from the menu display unit 220 or the candidate storage unit 130 in step D2. In step D3, the special character dictionary 114 is searched for the special character to obtain the corresponding kana character. Specifically, the kana character replacement unit 214 searches the special character dictionary 114 by the kana search unit 124 using the key such as "like", and acquires the kana character candidates "i" and "nyo". Step d
4, a kana character candidate selection button 342 indicating “yes” and a kana character candidate selection button 344 indicating “nyo” are displayed in the kana character candidate window 340, and the mouse cursor 34
When the kana character candidate selection button 342 is selected in 6, the target special character is replaced with the selected kana character in step d5 and the candidate character is re-stored in the candidate storage unit 130. When the candidate display is updated in step D6, "like" is replaced with "i" as shown in FIG. 11C, and the candidate is displayed as "what".
At the same time, in step 7, the kana character candidate window 340 is closed. It is possible to select "Ii ni ni" as well as other candidates. The menu end button 328 can end the menu display.

The function that can be converted into kana characters in this way is
It is extremely useful when preparing documents for each grade. It is easy to convert "Monday" to "Monthly day" during the Kana-Kanji conversion operation.

The kana character replacing section 214 has a candidate learning section (not shown) inside. According to this candidate learning unit, when "Iwhat ni" is created as a candidate, the candidate is learned and registered in the Kana-Kanji conversion dictionary 112 or the like. After that, the candidates are displayed in parallel as "candidates" and "what" s, and the selection operation by the user can be simplified. This learning function can be turned on or off.

Next, the operation of replacing a special character with a synonym will be described. Since the operation is almost the same as the kana character substitution, the explanation by the flow chart is omitted. FIG. 12 (a)
Input the kana character “Shudouki”, the kana-kanji conversion unit 100 searches the kana-kanji conversion dictionary 112 and outputs “lead machine” and “manual machine” as candidates, and the user selects “manual machine”. Indicates that is selected. As described above, "manual" is registered as an in-house document prohibited word, and therefore is displayed in a shaded manner.

When "manual" is double-clicked with the mouse 73, the menu display 360 shown in (b) is displayed. In the guidance display 362, a guide corresponding to the forbidden word in the in-house document is displayed, ““ manual ”is an inappropriate expression in the in-house document.” As in the case of the kana character replacement, the guidance display means displays “manual” from the candidate storage unit 130. , And the guidance data corresponding to it is passed to the menu display means 220. When the synonym replacement unit start button 326 is selected, a synonym candidate window 380 is displayed and a synonym selection button 382 indicating “manual” is displayed.
Is displayed. When the mouse cursor 346 is selected, the candidates are changed from “manual machine” to “manual machine” as shown in (c).
Is displayed in the echo line 300 and the candidate window 310. Internally, the processing means activation instructing section 224 activates the synonym replacement section 212, acquires the characters “manual” from the menu display means 220 or the candidate storage section 130, and the synonym search section 126 causes the special character dictionary 114. And retrieve the replacement character "manual".

The replacement function described above is also very useful for processing special characters at the level of the kana-kanji conversion device.
Since the special characters are registered as "manual", not only "manual machine" but also candidates for "manual operation", "manual transmission", etc. are identified and displayed, and "manual operation" and "manual operation" A replacement candidate such as "transmission" can be created.

The synonym replacement unit 212, like the Kana character replacement unit 214, has a candidate learning unit (not shown), and the candidates created by replacement are automatically converted into the Kana-Kanji conversion dictionary 1.
It can be registered as 12 or the like and can be displayed as a candidate for the kana-kanji conversion unit 100 from the next time.

Further, the synonym replacement unit 212 searches for synonyms registered in the special character dictionary 114, but other dictionaries such as the synonym dictionary 116 are found in the special character dictionary 114.
You may have only the pointer which shows, and you may search a synonym word from the synonym dictionary 116 by tracing this pointer.

FIG. 13 is a diagram showing details of the display of special characters consisting of a plurality of characters. Special characters made up of multiple characters are surrounded by a frame and are displayed as if they were one.
Of course, another display method may be used as long as it can be determined as one.

While one embodiment of the kana-kanji conversion measure of the present invention has been described above, other embodiments are possible. FIG.
The flowchart in FIG. 4 shows another aspect of the overall flow described in FIG. In FIG. 3, Kana-Kanji conversion unit 1
The special character search unit 120 was activated each time 00 created a kana-kanji mixed character string candidate, but in FIG. 14, the special character search unit 120 is activated after all candidates are stored in the candidate storage unit 130. .

In step E1, the kana character string is acquired from the input unit 180, in step E2, the kana-kanji conversion unit 100 searches the kana-kanji conversion dictionary 112, and in step E3, the kana-kanji mixed character string candidate is created and the candidate storage unit 130 is created. To store. In step E4, this is repeated until the end of the Kana-Kanji conversion dictionary 112 search, and all candidates are stored in the candidate storage unit 130.
To be stored. In step E5, the special character dictionary 114 is searched for each character forming each candidate, the identifier of the character hit by the search is acquired in step E6, and the identifier is stored in the candidate storage unit 130 in association with the character. In step E7, the identification display instructing section 140 instructs the identification display according to the identifier, and in step E8, the special characters are identified and displayed.

The advantage of the method of FIG. 14 is that the kana-kanji conversion unit 1
Until 00 stores the candidates in the candidate storage unit 130, the special character search unit 120 can be operated without any consideration. That is, the kana-kanji conversion unit 100 can be a conventional one as it is, and a special character identification display function can be added. The process is simpler than when the special character search unit 120 is called every time a candidate is created, and the development period can be shortened.

FIG. 15 is a further improvement of the function of the kana character replacing unit 214 described with reference to FIG. When the kana character replacement unit 214 is called from the menu display unit 220, the special character to be dealt with is acquired from the candidate storage unit (or the menu display unit 220) in step F1, and the kana search unit 124 is activated in step F2 to activate the special character. Dictionary 114
To retrieve the corresponding Kana candidate. Here, in step F3, the input kana character is obtained from the input kana character buffer 102. In the "how" example, "how" is obtained.

In step F4, the kana character candidates "I" and "Nyo" acquired from the special character dictionary 114 are compared with the inputted kana character "How". Then, the kana candidate “i” that partially matches “how” is selected as valid.

Since the number of kana candidates has been narrowed down to one, in step F5, the kana character candidate window 340 of FIG. 11 is not displayed and the target special character "like" is replaced with the selected kana character "i". Store it again in the candidate storage. In step F6, the candidate display of the echo line 300 and the candidate window 310 is updated to "what", and the menu display 320 is closed in step F7.

As described above, since the kana candidates to be replaced are compared with the inputted kana characters and automatically narrowed down, the user is not burdened with selecting a kana candidate.

FIG. 16 shows another mode of the operation screen of the condition setting section 150 of this embodiment. The usable kanji display window 400 displays the type of kanji for which identification display is not instructed by the identification display instructing unit 140 and the kanji that are specifically registered as usable kanji. The kanji types are grouped into units like 402 and displayed in a tree (called a folder) for intuitive recognition. Among the kanji that can be used, the kanji that are learned in the first and second years of elementary school and the first and second semesters of elementary school are classified into common kanji. The folder that indicates is displayed.
Further, when a folder for the 3rd year and 2nd semester of elementary school is clicked, a kanji list 404 is displayed so that the kanji registered in the folder for the 3rd semester of elementary school can be seen concretely.

In the unusable kanji display window 410, emergency kanji including regular kanji and personal name kanji learned after the third and third semesters of elementary school are registered and displayed. The figure shows a state in which the kanji list 414 registered by clicking the folder of the third year and third semester of elementary school is displayed.

In this state, Chinese characters can be moved in units of folders displayed in a tree. For example, it is possible to move a folder for the third semester of elementary school from the unusable Kanji display window 410 to the usable Kanji display window 400. Specifically, drag the folder of the 412 tree in the 3rd semester of elementary school with the mouse (the operation of moving the mouse while pressing the mouse button), and drop it at the folder position of the 3rd elementary school in the 402 tree (click the mouse button. Release). Then, the third semester folder is added under the third grade elementary folder in the tree 402. By this operation, "drink", "institution", "luck", and "swim" are all registered as usable kanji. It is also possible to move in units of higher folders. It should be noted that if the amount of information of the type identifier is increased, it is possible to identify and display in Kanji units. In this case, it is possible to easily move to Kanji units by using the tool shown in FIG.

With such a visual user interface, the condition setting unit 150 sets the identification display kanji (in FIG. 16, the emergency kanji including the common kanji for the third and third semesters of elementary school and the personal name kanji). The condition setting unit 150 sets the identification display instructing unit 140 to perform identification display when detecting a Kanji having an identifier indicating an emergency Kanji including a common Kanji for the third and third semesters of elementary school and a personal name Kanji. Of.

The kana-kanji conversion device of the present invention can have other modes. In the embodiment, the condition setting unit 150 sets the identification display method for each type of identifier in the identification display instructing unit 140, but sets the condition in the identifier search unit 122 and sets “not display”. As for the hate word, when the candidate is received from the Kana-Kanji conversion unit 100, the candidate storage unit 130 determines the candidate including the special character “not displayed”.
It can be controlled not to be stored in. Further, the condition setting unit 150 can set the name, position, and search level of the dictionary to be searched (when the special character and the replacement character are hierarchically registered and registered) in the special character search unit 120. Is.

In the embodiment, the identifier is temporarily stored in the candidate storage unit 130. However, when the identification display instruction unit 140 calls the candidate from the candidate storage unit 130, the special character search unit 12
It is also possible to search the special character dictionary 114 with 0. In this case, the capacity of the buffer used as the candidate storage unit 130 can be reduced.

Further, although the special characters and the corresponding identifiers are put in the special character dictionary 114 in this embodiment, it is also possible to attach the identifiers to the candidates such as independent words registered in the kana-kanji conversion dictionary 112. . In this case, it is not possible to identify and display the character string candidates mixed with kana and kanji character by character as in the above-described embodiment. However, the processing means 200, the special character replacement means 210, and the menu display means 2 in the embodiment
20 can be used in the same way and can bear the same effect. In addition, there is an advantage that the special character dictionary 114 need not be newly provided.

Further, in the above embodiment, the operation by the mouse 73 was mainly described, but the same operation can be performed by other input means such as the keyboard 72.

[Brief description of the drawings]

FIG. 1 is a functional block diagram showing an outline of the present invention.

FIG. 2 is a diagram showing a hardware configuration of an embodiment of the present invention.

FIG. 3 is a flowchart showing a special character identification display process according to an embodiment of the present invention.

FIG. 4 is a diagram showing a structure of a special character dictionary according to an embodiment of the present invention.

FIG. 5 is a diagram showing an identifier corresponding to a special character according to an embodiment of the present invention.

FIG. 6 is a diagram showing an internal structure of a candidate storage unit according to an embodiment of the present invention.

FIG. 7 is a diagram showing a menu screen for setting identification display according to an embodiment of the present invention.

FIG. 8 is a flowchart of identification display according to an embodiment of the present invention.

FIG. 9 is a flowchart for displaying a menu for activating the processing means regarding the displayed special character according to the embodiment of this invention.

FIG. 10 is a flowchart for replacing special characters with kana characters according to an embodiment of the present invention.

FIG. 11 is a diagram showing a CRT screen when a special character is identified and displayed and a kana character replacing means is activated according to an embodiment of the present invention.

FIG. 12 is a diagram showing a CRT screen when a special character is identified and displayed and a synonym replacement unit is activated according to an embodiment of the present invention.

FIG. 13 is a diagram showing a display mode when displaying a special character composed of a plurality of characters according to an embodiment of the present invention.

FIG. 14 is a flowchart showing a process of identifying and displaying special characters in another embodiment of the present invention.

FIG. 15 is a flowchart showing a method of automatically selecting a kana character candidate when replacing with a kana character in another embodiment of the present invention.

FIG. 16 is a diagram showing a screen for setting an identification display in another embodiment of the present invention.

[Explanation of symbols]

 10 computer 20 arithmetic processing unit 21 CPU 22 local bus 23 cache memory 24 cache controller 25 main memory 30 PCI bridge 32 PCI bus 40 controller unit 42 ISA bus 44 VGA 46 SCSI controller 48 ISA bridge 54, 55 composite I / O port 56 sound I / O 60 I / O unit 62 ISA slot 68 Timer 72 Keyboard 73 Mouse 74 Speaker 76 CRT 82 Floppy disk device 84 Hard disk 86 Parallel port 88 Printer 90 Serial port 92 Modem 93 Scanner 94 Tablet 96 Microphone 100 Kana-Kanji conversion unit 102 Input Kana character buffer 110 dictionary 112 Kana-Kanji conversion dictionary 114 special character dictionary 116 synonyms Handbook 120 Special character search unit 122 Identifier search unit 124 Kana search unit 126 Synonym search unit 130 Candidate storage unit 132 Candidate character storage unit 134 Identifier storage unit 140 Identification display instruction unit 142 Special character identification display instruction unit 144 Special word display instruction unit 146 Display mode change instructing section 150 Condition setting section 160 Candidate display creating section 170 Control section 180 Input section 190 Display section 200 Processing means 202 Guidance display means 210 Special character replacement means 212 Synonym replacement section 214 Kana character replacement section 220 Menu display means 222 menu storage section 224 processing means start instruction section 300 echo line 310 candidate window 312 selection cursor 320 menu display 322 guidance display 324 kana character replacement section start button 326 synonym replacement section start button 328 menu Exit button 340 kana characters candidate window 342 kana characters candidate selection button 344 kana character candidate selection button 346 mouse cursor 360 menu display 362 guidance display 380 synonym candidate window 382 synonym selection button

Claims (16)

[Claims] 1. A kana-kanji conversion device that analyzes an input kana character string by referring to a dictionary and converts the kana-kanji character string into a kana-kanji mixed character string. The Kana-Kanji conversion unit that creates the Kana-Kanji mixed character string candidate, the special character dictionary that stores predetermined special characters, and the characters that make up the Kana-Kanji mixed character string candidate and the special character dictionary are matched and matched. A special character search unit that adds an identifier to the character, an identification display instruction unit that treats the character having the identifier as a special character, and instructs the character to be displayed distinguishably from other characters, based on the instruction of the identification display instruction unit A kana-kanji conversion device, comprising: a candidate display creation unit that creates a candidate display of a part or all of the kana-kanji mixed character string candidates. 2. The identification display instructing unit, when making the special character distinguishable from other characters, a display mode changing instructing unit instructing to make the display mode of the special character itself different from other characters. The kana-kanji conversion device according to claim 1, comprising: 3. The kana-kanji conversion device according to claim 1, wherein the special characters are at least one kanji or symbol. 4. The special character is classified into a plurality of types, and a type identifier storage unit that stores an identification identifier corresponding to the type of the special character in the special character dictionary in association with the special character, A type identifier search unit that searches for the type identifier corresponding to the special character searched by the special character search unit; and the kana kanji character to distinguish from other characters or other special characters according to the type of the type identifier 4. The kana-kanji conversion device according to claim 1, further comprising: a special character identification display instructing section for instructing display of mixed character string candidates. 5. The kana-kanji conversion device according to claim 1, further comprising: a condition setting unit that sets the presence or absence of an identification display corresponding to the identifier and an identification display method in the identification display instruction unit. . 6. The kana-kanji conversion device according to claim 4, wherein the types of the special characters include at least personal name characters, emergency kanji, and grade-specific kanji. 7. A guidance display means for displaying guidance regarding the special character at the same time as the special character identification display or by a predetermined operation after the special character identification display. Kana-to-Kanji converter described in 6 to 6. 8. The kana-kanji conversion device according to claim 1, wherein after the special character is identified and displayed, a special operation is performed to search a replacement dictionary for the special character and replace it with another character. The kana-kanji conversion device according to claim 1, further comprising a character replacement unit. 9. The special character replacing means includes a synonymous character replacing unit that searches the replacement dictionary for the special character to be replaced and converts the special character into a synonymous character.
Kana-Kanji conversion device described. 10. The kana of claim 8, wherein the special character replacement means includes a kana character replacement unit that searches the replacement dictionary for the special character to be replaced and converts it into a kana character. Kanji conversion device. 11. The kana-kanji conversion device according to claim 8, wherein the special character replacement means registers a kana-kanji mixed character string candidate created by a replacement operation in the kana-kanji conversion dictionary. 11. The kana-kanji conversion device according to claim 8, further comprising means. 12. The kana-kanji conversion device according to claim 7, wherein the kana-kanji conversion device specifies a special character designating unit that designates the specially displayed special character, and a plurality of activation units for the designated special characters. 12. A kana-kanji conversion device according to claim 7, further comprising a menu display means for displaying the processing means in a menu. 13. The kana-kanji conversion device according to claim 12, wherein said processing means includes at least said guidance display means and said special character replacement means. 14. The kana-kanji conversion device according to claim 7, 14, or 13, wherein said guidance or said menu is displayed in the vicinity of said specially displayed special characters. 15. The kana-kanji conversion device according to any one of claims 1 to 14, wherein when the special character comprises a plurality of consecutive characters, the identification display instructing unit makes the special character visible as a special word. 15. The kana-kanji conversion device according to claim 1, further comprising a special word display instructing section for identifying and displaying. 16. A kana-kanji conversion device for analyzing an input kana character string by referring to a dictionary and converting it into a kana-kanji mixed character string, for a predetermined special character that is treated separately for general words. An identifier stored in the dictionary corresponding to the special character, and a kana-kanji conversion unit that searches the dictionary from the kana character string to create a plurality of kana-kanji mixed character string candidates; When or after creating a kana-kanji mixed character string candidate, the identifier corresponding to the special character that constitutes the kana-kanji mixed character string candidate is searched and stored in the candidate storage unit together with the kana-kanji mixed character string candidate. A special character search unit, a special word display instruction unit for instructing to display the special word differently from other characters, and the kana-kanji mixed character string candidate based on the instruction of the special word display instruction unit. A candidate display creation unit that creates a part or all of the candidate displays, a display unit that displays the candidate displays, and a replacement of the special characters by a predetermined operation after identifying and displaying the special words. A kana-kanji conversion device, comprising: