JP2003132054A - System for inputting japanese, program therefor, and personal digital assistant - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system, which is capable of readily inputting a word included in a reference text, particularly the word of which reading is incomprehensible for a user, when preparing document and Japanese input. SOLUTION: The system has a means for reading a reference text to segments the word, and evaluating the relative difficulty at reading, to decide the priority and conduct extraction of the word; a means for recording and managing an extracted word in an extracted word registration file; and a means for outputting and displaying the word on a display device as a selection candidate list according to the priority from the extracted word registration file, in accordance with a predetermined key input in the case of Japanese input processing, and delivering the selected and defined word to an application.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a Japanese input system (kana-kanji conversion system), its program, and a portable information terminal equipped with the Japanese input system.

[0002]

2. Description of the Related Art A typical Japanese input process in a conventional Japanese input system (Kana-Kanji conversion system, Input Method) is performed in the following procedure, for example. First,
The user uses the keyboard to select the appropriate input mode (Roman character input / Kana input, etc.), then inputs the reading (the reading is displayed on the display device), and the conversion execution key (Space key, etc.) Enter. The Japanese conversion module receives a reading character string input from the keyboard via a driver or an I / O control module,
The reading character string is analyzed and converted while referring to a system dictionary or the like to generate a converted character string (such as a sentence containing words or kanji and kana) and output to a display device. The user refers to the post-conversion character string, tries further conversion if the target word is not converted, and confirms when the target word is displayed (Enter key, next input, etc.).

Conventionally, the operability of Japanese input processing has been improved by simplifying the input operation of reading and increasing the conversion efficiency. However, in the conventional technique, at least one reading character had to be input when inputting Japanese. In other words, it is not possible for the inputting user to immediately input a word that the user does not understand, and it takes time and effort to input it in another method by taking additional steps such as searching for the target word from elements other than reading. Was there.

For example, assume that a word contained in a document is input while referring to existing document data (text data). At that time, in order to input a word that is unreadable, it is necessary to follow a procedure such as copying and pasting the corresponding word in the reference document data, which is inconvenient.

In addition to inputting with reference to the existing document data as described above, generally, in creating / inputting a document, rather than newly inputting all, the change is made to the existing document data. Much more is added and added. For example, there is a case where a reply mail is created for the received electronic mail. Document data to refer to when creating or entering a document by referencing or updating existing document data (hereinafter referred to as reference text)
Occasionally, a word included in is repeatedly input.

For example, in the case of a portable information device,
The input method is limited, so it takes time to input Japanese. Therefore, there is a demand for an interface that enables easy Japanese input.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and when a document is created and Japanese is input, the words contained in the reference text, especially the user's understanding of the reading, can be understood. A first object of the present invention is to provide a Japanese input system capable of easily inputting non-existent words.

[0008]

In order to achieve such an object, the invention according to claim 1 reads a reference text, cuts out a word, evaluates the difficulty of reading, determines a priority and extracts a word. A text analysis means for performing, an extracted word storage means for recording and managing extracted words in an extracted word registration file, and a word selection from the extracted word registration file in order of priority according to a predetermined key input during Japanese input processing. It is characterized in that it has extraction word display means for outputting a candidate list to a display device for display and displaying the selected / fixed word to an application.

According to a second aspect of the present invention, in the first aspect of the present invention, the extracted words are searched for other information by referring to the system dictionary, and the other words for which the other information is successfully retrieved are read. It further has a reading addition means for adding and recording the information, and the extracted word display means is characterized in that when the selection candidate list is displayed, other information is also written and displayed.

The invention according to claim 3 is the invention according to claim 1 or 2.
In the invention described in (3), the text analysis means is characterized in that, at the time of word extraction, the text analysis means evaluates according to the type of the character code set or the character code value of the cut word.

According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the text analysis means evaluates the word length and the number of appearances in the reference text when extracting the word. The feature is that the priority is determined and the words are extracted.

According to a fifth aspect of the present invention, the reference text is read, the words are cut out, the reading difficulty is evaluated, the priority is determined to extract the words, and the extracted words are extracted. In the process of storing and managing the extracted words that are recorded and managed in the Japanese language and the process of inputting Japanese, according to a predetermined key input, the words are output from the extracted word registration file in order of priority as a selection candidate list to the display device for display and selection. It is characterized in that the computer is caused to execute the extracted word display processing for passing the decided word to the application.

According to a sixth aspect of the present invention, in the fifth aspect of the invention, regarding the extracted word, the reading other information is searched by referring to the system dictionary, and the reading succeeds in the reading other information. Is added to and recorded in the computer, and the extracted word display process is characterized in that when the selection candidate list is displayed, other reading information is also displayed.

The invention according to claim 7 is the invention according to claim 5 or 6.
In the invention described in (3), the text analysis process is characterized in that, at the time of word extraction, evaluation is performed according to the type or character code value of the character code set of the cut word.

According to an eighth aspect of the present invention, in the invention according to any one of the fifth to seventh aspects, the text analysis process performs evaluation based on the word length and the number of appearances in the reference text during word extraction. The feature is that the priority is determined and the words are extracted.

According to a ninth aspect of the present invention, an input device including an extracted word selection key, a display device, a storage device for storing reference text and created text data, an application for creating a text, and a Japanese input system. And a text analysis unit for extracting a word by reading a reference text from a storage device, cutting out a word, evaluating a difficulty of reading, determining a priority, and extracting a word. Extracted word storage means for recording and managing in a registered file, and during Japanese input processing, according to the input of the extracted word selection key, words are output from the extracted word registration file in the order of priority as a selection candidate list and displayed on a display device. It is characterized by having extracted word display means for passing the selected and confirmed word to the application.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a functional block diagram of the Japanese input system according to the embodiment of the present invention. In this system, in document creation and Japanese input, the reference text is read and analyzed first, the priority is evaluated, words are extracted and recorded in a file as a preceding step. When actually performing the Japanese input process, by using the above file, the word that is judged to be difficult to read is displayed on the display device according to the input of a predetermined key. Realizes simple input.

The present Japanese input system realizes its function in the form of a program executed on predetermined hardware. This system includes a text analysis unit 1, an extracted word storage unit 2, an input determination unit 3, and an extracted word display unit 4.
And are included.

The program for realizing the present system includes a text analysis processing unit 11 and an extracted word storage processing unit 1.
2, an input determination processing unit 13, and an extracted word display processing unit 14
And are included. These are program modules corresponding to the above means. The program is provided in a form recorded in a predetermined recording medium and installed in the program storage unit in the computer system used by the user. This includes a form in which it is downloaded and installed via a network. This program realizes the functions of the present invention by being loaded into the main memory by the computer system at the time of execution and being executed by the central processing unit.

The text analysis means 1 reads the reference text, performs a predetermined syntactic analysis / word segmentation, and extracts words to be extracted by some evaluation items such as difficulty of reading, before the user inputs Japanese. Evaluate and extract words. The trigger for reading the reference text is the command selection or other event by the user for reading the reference text. The text analysis means 1 receives the read instruction, reads the reference text from the auxiliary storage device into the main memory, analyzes and evaluates it, extracts a word, and outputs it to the extracted word storage means 2. The text analysis means 1 is shown in FIG.

In the text analysis, the extraction priority of the words is evaluated, and the words of high priority are extracted. This priority is also a priority at the time of display by the extracted word display means 4 which will be described later, and is calculated as a value by a predetermined calculation formula corresponding to the evaluation item.

The extracted word storage means 2 records and manages the words extracted by the text analysis means 1 in a special extracted word registration file together with the priority value thereof. This extracted word registration file is displayed by the extracted word display means 4.
It is referenced and used when processing Japanese input. The extracted word registration file is a file generated corresponding to each reference text.

The input judging means 3 is used for Japanese input processing.
Process input from an input device such as a keyboard. When the input is a key / command for instructing selection / display of the extracted word (hereinafter, word selection key / command), the extracted word display means 4 is requested to perform processing.

When the word selection key is input from the input device, the extracted word display means 4 reads out the registered words from the extracted word registration file and outputs and displays them on the display device in the display order according to their priority. Perform processing. This registered word is displayed in a window format, for example. Display some top words according to priority. The user can input by selecting a target word from the extracted words displayed on the screen and confirming it. FIG. 3 shows the input determination means 3 and the extracted word display means 4. As shown in FIG. 3, a Japanese input system is generally located between an input device and an application to perform a character string conversion process. The character string from the input device is passed through the Japanese input system management unit (provided by the OS), converted by the main body of the Japanese input system, and returned to the management unit. The converted character string is output to the display device or application.

The analysis processing of the reference text in the text analysis means 1 is performed by syntax analysis / word segmentation (lexical analysis).
Processing, system dictionary (dictionary usually used by Japanese input system) search / check processing, learning information (learning dictionary) search / check processing, and priority evaluation processing are performed. Alternatively, the priority evaluation process is
It may be a processing procedure that is performed at the same time as the syntax analysis / word extraction processing. The system dictionary search process is not always necessary.

As the syntax analysis / word cutout (lexical analysis) processing, if complicated syntax analysis cannot be performed due to implementation requirements, etc., only simple word cutout (lexical analysis) processing is performed.

As the word priority evaluation processing, evaluation is performed by factors such as the number of appearances of the word in the reference text, the length of the word, the type of the word (kanji and characters), that is, the type of the character code set and the character code value. The priority is calculated.

In the priority evaluation process, the priority value is increased as the word appears more frequently in the reference text. This is because it is judged that the higher the number of appearances, the higher the importance in the context of the sentence. Also, the longer the word length, the higher the priority value. This is because the larger the word length, the more omitted the word is when it is input for reading, which leads to improved operability and efficiency. Also, the character type of the word is determined from the type of the character code set, the character code value, etc., and, for example, the priority value is increased for the word for which the second level JIS code is used as the character code set. The characters of the second level JIS code are a character code system in which characters considered to be less frequently used than the characters of the first level JIS code are collected and registered. Therefore, it is determined that the characters of the second level JIS code have a high probability that the user cannot understand the reading of the word. In addition, it is determined that it is difficult to read person names, place names, and the like, so the priority is set high. For other character code sets, the priority should be evaluated in consideration of the frequency of use and appearance probability of characters.

In the learning / searching process of the learning information, the words extracted from the reference text are compared with the learning information held by the base Japanese input system main body (Japanese conversion processing module) to obtain the learning information. For those that already exist, omit registration. The learning information is word information registered by the system learning the input by the user. That is, since the user can input a word registered in the system as learning information without resorting to the function of the present invention, it is not always necessary to register such a word. In addition, even if it overlaps with the learning information, it may be registered without being omitted.

A specific example will be described with reference to FIGS. 4 and 5. Consider a case where a mobile information terminal equipped with an electronic mail application returns a mail to a received mail. As the input device, the display device, and the storage device, those provided in the mobile information terminal are used. It is assumed that the extracted word selection key is provided as a part of the input device.

In the electronic mail application, when creating a reply mail to the received mail, the user first specifies the received mail and selects and inputs a reply mail creation command. The text analysis processing unit 11 is activated in response to the selection of this command, and the received mail stored in the storage device is read as the reference text.
The text analysis processing unit 11 analyzes the received mail text and evaluates the priority to perform word extraction. As a result, "garbage collector", "dynamic loading", "memory leak", "sing", "order",
This indicates that words such as “summary” and “Utsu Root” have been extracted as high priority words and have been saved in the extracted word registration file by the extracted word storage processing unit 12. An example of the extracted word information is shown in FIG.

FIG. 5 shows a display example of extracted words. When the user inputs the text to be returned and presses the extracted word selection key, the extracted word display processing unit 14 displays the extracted words on the screen of the display device in the order of priority. The user can input by selecting and confirming the target word from the displayed selection candidate list.

In FIGS. 4 to 6, "garbage collector" and "dynamic loading" are extracted depending on the number of appearances in the reference text and the word length. Also, "Utatte" and "Hinshu" are extracted because they are the Kanji of the second level JIS code. In addition, "Utsu Tone" has been extracted as a person name or place name whose reading is unknown.

7 and 8 are flowcharts showing the operation of the Japanese input system in the embodiment of the present invention. FIG. 7 is a flow showing the flow of text analysis processing. When the user inputs Japanese using existing text data (reference / update), first, as a pre-stage, the text analysis processing unit 11 triggers a predetermined event to retrieve the reference text from the auxiliary storage device into the main memory. Is read (step S11). Then parse the text /
Lexical analysis is performed and words are cut out (step S1).
2). Next, it is checked whether or not the extracted word is included in the learning dictionary of the system, and the registration of the included word is omitted (step S13). With respect to the cut-out words, priority evaluation calculation is performed for elements such as the number of word appearances, word lengths, and character types, and the priority value is calculated to determine the priority, which is the extracted word (step S14). The extracted words are saved in the extracted word registration file in a predetermined format based on their priority (step S
15).

On the other hand, FIG. 8 is a flow showing the flow of the extraction word display processing. As a step of actually performing the Japanese input processing, the Japanese input system main body waits for a key input from the input device (step S21), and if the command is a text input end command, ends the processing (step S22.Y).
ES). Also, it is judged whether or not it is a word selection command (step S23), and if it is not a word selection command, normal Japanese input processing is performed (step S24). If the command is a word selection command, the extracted word display processing unit 14 reads out the registered words from the extracted word registration file, and outputs the registered words to the display device in a window format or the like in the descending order of priority (step S25). For a word selected and confirmed by the user from the displayed words, the extracted word registration file is updated by changing the priority value of the word to a higher value (step S26). The word selected and confirmed by the user is inserted and displayed at the caret (cursor) position on the screen of the display device, and is passed to the application which is creating the document (step S27).

The Japanese input system of the present invention exhibits its function by being incorporated in a predetermined information processing device. As the information processing device, for example, a personal digital assistant such as a PDA or a mobile phone can be considered.

FIG. 9 shows the configuration of the information processing terminal according to the embodiment of the present invention. This terminal includes a central processing unit 10 that operates under program control, an input device 20 such as a keyboard and buttons, and a display device 3 such as a liquid crystal display.
0, a storage device 40 such as a RAM, a program storage unit 50 such as a ROM or RAM, and a communication processing unit 60 for performing communication processing such as electronic mail via a network.
And an electronic mail application 70. The storage device 40 is a device such as a magnetic memory or a semiconductor memory that stores data such as reference text and created text, and various dictionary data used by the Japanese input system. The program storage unit 50 is a memory that stores the program of the present invention. It goes without saying that a predetermined driver or the like is used to handle various devices.

The program (text analysis processing section, etc.) of the present invention is loaded from the program storage section 50 into the main memory and executed by the central processing unit 10. The text analysis processing unit 11 is activated from the electronic mail application 70 as necessary to perform the processing. Various processes are the same as those described above.

Another embodiment will be described. Figure 10
It is a functional block diagram of the Japanese input system in the 2nd Embodiment of this invention. In the second embodiment, reading addition means 5 (corresponding to the reading addition processing means 15) is added to the components of the first embodiment. The other components are the same as the functions of the first embodiment.

The reading adding means 5 retrieves the reading of the extracted word by referring to the system dictionary during the text analysis processing. When the reading is found, the reading is recorded in the extracted word registration file in association with the priority value and other information for that word (see FIG. 6). Further, not only reading but also information such as spelling of English words may be added. In the extraction word display processing by the extraction word display means 4 during the Japanese input processing, in addition to the word display in the priority order, the reading information and the like registered in the extraction word registration file are also displayed.

A specific example will be shown. Similar to FIG. 4, words such as “garbage collector” and the like are extracted as high priority from the reference mail. The extracted word is stored in the extracted word registration file in a format in which additional information such as reading is added by searching the system dictionary by the reading addition processing unit 15. When the word selection key is input during the Japanese input process, additional information such as reading is displayed together with the extracted word. FIG. 11 shows a display example. The user can understand the reading of the word along with the selection input of the extracted word.

In FIG. 11, “garbage collector” and the like are read as they are, and the spelling of English words is added as additional information. In addition, the reading of “songs” and the like is detected and added. Also, "Utsu Root"
Describes the reading as unknown.

12 and 13 are flowcharts showing the operation of the Japanese input system in the second embodiment. In addition to the operation of the first embodiment, the process of adding reading in step S35 is added. In addition, in step S45, the display process of the registered word is performed in a form in which the reading and other information are also written. Other processes are the same as those in the first embodiment.

The embodiments of the present invention have been described above. The above-described embodiment shows an example of a preferred embodiment of the present invention, and the present invention is not limited thereto, and within a range not departing from the gist thereof,
Various modifications can be made.

[0046]

As is apparent from the above description, according to the present invention, at the time of document creation and Japanese input, words are extracted from the reference text and used to simplify the Japanese input operation and reduce labor. Can be reduced. In particular,
The effect is great when the input device such as a portable information terminal is limited. Further, in particular, the user can input the unreadable word in the reference text without inputting the reading.

[Brief description of drawings]

FIG. 1 is a functional block diagram showing a configuration of a Japanese input system according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a text analysis unit 1.

FIG. 3 is a diagram showing an input determination means 3 and an extracted word display means 4.

FIG. 4 is a diagram showing a specific example of use of this system.

FIG. 5 is a diagram showing a candidate display when a word selection key is pressed.

FIG. 6 is a diagram showing an example of registration information in an extracted word registration file.

FIG. 7 is a first flowchart (text analysis process) showing the operation of the Japanese input system according to the first embodiment of the present invention.

FIG. 8 is a second flowchart (extracted word display process) showing the operation of the Japanese input system according to the first embodiment of the present invention.

FIG. 9 is a functional block diagram showing a configuration of a portable information terminal according to the embodiment of the present invention.

FIG. 10 is a functional block diagram showing a configuration of a Japanese input system according to the second embodiment of the present invention.

FIG. 11 is a diagram showing candidate display (addition of reading and other information) when a word selection key is pressed.

FIG. 12 is a flow chart No. 1 (text analysis process) showing the operation of the Japanese input system according to the second embodiment of the present invention.

FIG. 13 is a second flowchart (extracted word display process) showing the operation of the Japanese input system according to the second embodiment of the present invention.

[Explanation of symbols]

1 Text analysis means 2 Extracted word storage means 3 Input judgment means 4 Extracted word display means 5 Reading addition means 11 Text analysis processing unit 12 Extracted word storage processing unit 13 Input judgment processing section 14 Extracted word display processing unit 15 Reading addition processing unit 10 Central processing unit 20 Input device 30 display 40 storage 50 Program storage 60 Communication processing unit 70 Email Applications

Claims (9)

[Claims] 1. A text analysis unit for reading a reference text, cutting out a word, evaluating a difficulty of reading, determining a priority and extracting a word, and recording and managing the extracted word in an extracted word registration file. The extracted word storage means and, in the Japanese input process, according to a predetermined key input, the words are output from the extracted word registration file in the order of the priority as a selection candidate list to a display device and displayed, and are selected / confirmed. A Japanese input system comprising: an extracted word display means for passing a word to an application. 2. A reading addition means for searching the reading word and other information with respect to the extracted word by referring to a system dictionary, and adding and recording the reading and other information for the word for which the reading other information is successfully retrieved. The Japanese input system according to claim 1, further comprising: the extracted word display means, when the display processing of the selection candidate list is performed, additionally displays the reading and other information. 3. The Japanese language according to claim 1, wherein the text analysis means performs an evaluation according to the type or character code value of the character code set of the cut word when extracting the word. Input system. 4. The text analysis means, when extracting the words, evaluates the word length and the number of appearances in the reference text to determine the priority and extracts the words. The Japanese input system according to any one of 3 above. 5. A text analysis process of reading a reference text, cutting out a word, evaluating a difficulty of reading, determining a priority and extracting a word, and recording and managing the extracted word in an extracted word registration file. In the extracted word storage process and the Japanese input process, according to a predetermined key input, the words are output from the extracted word registration file in the order of the priority as a selection candidate list to the display device and displayed, and are selected / confirmed. A program characterized by causing a computer to execute an extracted word display process of passing a word to an application. 6. A reading addition processing for searching the reading other information for the extracted word by referring to a system dictionary, and adding and recording the reading other information for the word for which the reading other information is successfully retrieved. 6. The program according to claim 5, further causing the computer to execute the extraction word display process, wherein when the selection candidate list is displayed, the reading and other information are also displayed together. 7. The program according to claim 5, wherein the text analysis process performs an evaluation according to the type or character code value of the character code set of the cut word when extracting the word. 8. The text analysis process according to claim 5, wherein when extracting the word, the word length and the number of appearances in the reference text are evaluated to determine the priority, and the word is extracted. 7. The program according to any one of 7. 9. A portable information terminal comprising an input device including an extracted word selection key, a display device, a storage device for storing reference text and created text data, an application for creating text, and a Japanese input system. A text analysis means for extracting the words by reading the reference text from the storage device, cutting out the words, determining the priority by evaluating the difficulty of reading, and extracting the extracted words in an extracted word registration file Extracted word storage means to be recorded and managed, and in the Japanese input process, according to the input of the extracted word selection key, words are output from the extracted word registration file in the order of the priority to the display device as a selection candidate list. And a selected word display means for displaying and displaying the selected / confirmed word to the application. News terminal.