JP2012083815A - Character string conversion device, character string conversion method, computer program and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a character string conversion device that can effectively generate a sentence.SOLUTION: In a character string conversion device, a storage part 16 stores character strings used for generating a sentence, and a character string conversion part 20 detects whether or not an operation for selecting one conversion candidate from conversion candidates for character string conversion of an input character string is performed, retrieves the character string partly corresponding to the selected conversion candidate, out of the character strings stored in the storage part 16 if it detects that the operation for selecting one conversion candidate is performed, selectably displays the retrieved character string on a display part 13 and outputs the selected character string if one character string is selected from the displayed character strings.

Description

  The present invention relates to a character string conversion device that converts an input character string, a character string conversion method, a computer program that causes a computer to execute the character string conversion method, and a computer program recorded therein. The present invention relates to a computer-readable recording medium.

  In recent years, mobile terminals such as mobile phones and PDAs (Personal Digital Assistants) have been widely used. When inputting a large number of characters on these portable terminals, there is a demand for a method capable of inputting a target character string, particularly a character string as long as possible, with a small number of operations.

  As a method for this, there is a method in which an operator registers a character string. In this method, a character string that the operator thinks is frequently used is registered in the portable terminal in a predetermined procedure. When the operator edits the text on the mobile terminal, a list of registered character strings is displayed on the screen, and the character string selected from the list is inserted into the text being edited. However, this method has a problem that it takes time since the operator needs to register the character string in advance.

  Therefore, the text of the received e-mail is divided based on a predetermined condition, and a character string consisting of one or more characters is acquired and registered, and when editing a reply e-mail to the received e-mail, the registered character string is A technique has been proposed in which a selected character string is inserted into a document of a transmission e-mail when an operation of an operator who selects and displays a character string is accepted (see Patent Document 1).

  With this technique, when the operator selects a registered character string, if the number of character strings to be displayed is large, it becomes difficult for the operator to search for the target character string on the screen. Further, when all the character strings cannot be displayed on one screen, page switching and scrolling operations are necessary, and the operator is forced to perform complicated work to search for the target character string.

  In order to solve the problem of complicating the operator to search for a target character string, the number of characters of the predicted character string is obtained by adding (n + α) to the number of characters n of the input character string and (n + α). A character string prediction method is proposed in which the upper limit value is made up of the number of characters equal to or less than the upper limit value, only the predicted character string having the input character string at the head is limited, searched from the dictionary, and displayed as a predicted character string candidate. (See Patent Document 2). In this character string prediction method, for example, when α = 2, if the user inputs “ASA”, n = 2, so “ASAGA (morning glory)”, “ASAHI (ASAHI)”, “ASA ( Only 2-4 character strings such as “morning)” are displayed as predicted character strings.

JP 2008-52702 A JP-A-8-255156

  However, the above-described character string prediction method has a problem that it is difficult to effectively create a sentence. For example, the input of a sentence is performed while selecting a predicted character string candidate. However, the above-described character string prediction method uses the predicted character string having the input character string at the beginning each time the user inputs the character string. Is displayed as a predicted character string candidate, so that the predicted character string candidate for the character string newly input by the user is displayed regardless of the predicted character string candidate selected by the user immediately before.

For example, even when the user selects the predicted character string candidate “Asahi” immediately before, the predicted character string candidate displayed next is a predicted character string for the character string newly input by the user. There is no direct relationship with the predicted character string candidate “Asahi” selected immediately before by the user. When creating a sentence, the character string input immediately before and the character string input next are often related, but the above-described character string prediction method does not effectively use such a relationship. Therefore, it was difficult to create sentences effectively.
Moreover, in order to solve the problem that the operator is forced to perform complicated work to search for the target character string in Patent Document 1 by the method described in Patent Document 2, the registered character string is used as a display target. An input character string for limiting the character string is necessary, and the user is forced to input the input character string separately from the character string selected immediately before by the user.

  In view of the above problems, the present invention provides a character string conversion device, a character string conversion method, and a computer program characterized by causing a computer to execute the character string conversion method, which can effectively generate a sentence. Another object of the present invention is to provide a computer-readable recording medium characterized by recording the computer program.

  In order to solve the above problems, a first technical means of the present invention is a character string conversion device for converting an input character string, the storage unit storing an output character string used for generating a sentence, and the input It is detected whether or not an operation for selecting one conversion candidate from conversion candidates for character string conversion of a character string has been performed, and when it is detected that an operation for selecting the one conversion candidate has been performed, The output character string stored in the storage unit is searched for an output character string that partially matches the selected conversion candidate, the searched output character string is displayed on the display unit in a selectable manner, and the displayed output character is displayed. And a character string conversion unit that outputs the selected output character string when one output character string is selected from the columns.

  The second technical means of the present invention, when it is detected in the first technical means that the generation of the text is completed, the generated text is based on the delimiter information that registers the delimiter that separates the text. It is further characterized by further comprising a character string registration unit for storing a plurality of character strings formed by dividing a plurality of character strings into sentences and storing the plurality of character strings as the output character strings in the storage unit.

  According to a third technical means of the present invention, in the second technical means, when the character string registration unit detects the transmission of an electronic mail, the text generated for the transmission of the electronic mail based on the delimiter Is divided into a plurality of character strings, and a plurality of character strings formed by dividing the generated sentence are stored as the output character strings in the storage unit.

  According to a fourth technical means of the present invention, in the second or third technical means, the character string conversion unit performs character string conversion using a conversion dictionary in which conversion candidates for character string conversion of the input character string are registered. The character string registration unit stores a character string that matches a conversion candidate registered in the conversion dictionary among the plurality of character strings formed by dividing the sentence as the output character string in the storage unit. It is excluded from the object to be performed.

  According to a fifth technical means of the present invention, in any one of the second to fourth technical means, the character string registration unit stores a plurality of character strings formed by dividing the sentence in the storage unit. In this case, only character strings having a predetermined number of characters or more are stored.

  According to a sixth technical means of the present invention, in any one of the second to fifth technical means, the character string registration unit stores a plurality of character strings formed by dividing the sentence in the storage unit. In this case, a character string is stored with an upper limit of a predetermined number per sentence.

  According to a seventh technical means of the present invention, in any one of the second to sixth technical means, the character string registration unit is configured such that a character string formed by dividing the sentence is a city, a road, a prefecture, a prefecture. , A city, a ward, a town, a village, a county, a large letter, and a character indicating an administrative division of a letter, a character indicating the administrative division from the first character of a character string formed by dividing the sentence Character strings excluding the characters up to are stored as the output character strings in the storage unit.

  According to an eighth technical means of the present invention, in any one of the second to seventh technical means, the character string registration unit separates the sentence when the sentence is divided into a plurality of character strings. A plurality of character strings formed in this manner are stored in the storage unit excluding the delimiters.

  According to a ninth technical means of the present invention, in any one of the second to eighth technical means, the character string registration unit stores a plurality of character strings formed by dividing the sentence in the storage unit. At the time, a plurality of character strings formed by dividing the sentence in association with application software activated at the time of storing the plurality of character strings is stored as the output character string, and the character string conversion unit An output character string that partially matches the selected conversion candidate is searched from character strings stored in association with application software that is activated when an operation for selecting one conversion candidate is performed. The output character string is selectably displayed on the display unit.

  According to a tenth technical means of the present invention, in any one of the second to ninth technical means, the character string registration unit is configured such that when one output character string is selected from the displayed output character string. The selected output character string is stored in the storage unit as a learned character string, and the character string conversion unit stores the output character stored in the storage unit when an operation for selecting the one conversion candidate is performed. The learning character string searched when the output character string or learning character string that partially matches the selected conversion candidate is searched from among the strings and learning character strings, and the output character string and learning character string are searched Is displayed with priority over the output character string.

  According to an eleventh technical means of the present invention, in any one of the second to tenth technical means, the character string registration unit stores the selected output character string as a learning character string in the storage unit. The learning character string is stored in association with the application software activated when the learning character string is stored, and the character string conversion unit is activated when an operation for selecting the one conversion candidate is performed. A learning character string partially matching the selected conversion candidate is searched from learning character strings stored in association with application software, and the searched learning character string is displayed on a display unit.

  A twelfth technical means of the present invention is a character string conversion method for converting an input character string, and whether or not an operation for selecting one conversion candidate from conversion candidates for character string conversion of the input character string has been performed. A detection step for detecting the conversion candidate, and when the operation for selecting the one conversion candidate is detected in the detection step, the selected conversion candidate among the output character strings stored in the storage unit; A search step for searching for an output character string that partially matches, and the output character string searched in the search step is displayed on a display unit so that it can be selected, and one output character string is selected from the displayed output character strings. And an output step of outputting the selected output character string.

  A thirteenth technical means of the present invention is a computer program that causes a computer to execute the character string conversion method.

  A fourteenth technical means of the present invention is a computer readable recording medium characterized by recording the above computer program.

  According to the present invention, when an operation for selecting one conversion candidate from conversion candidates for character string conversion of an input character string is performed, an output character string that partially matches the selected conversion candidate is searched and searched. Since the output character string is output, an output character string related to the selected conversion candidate can be obtained as a character string candidate to be input next, and a sentence can be generated effectively.

It is a functional block diagram of a text generation device concerning an embodiment of the present invention. It is a figure which shows an example of text data. It is a figure which shows an example of a character string table. It is a figure which shows an example of a delimiter table. It is a figure which shows an example of the input character string displayed on a display part. It is a figure which shows an example of the conversion candidate list | wrist displayed on a display part. It is a figure which shows an example of the conversion candidate list | wrist displayed on a display part. It is a figure which shows an example of the text after the character string insertion displayed on a display part. It is a flowchart which shows an example of the process sequence of the extraction process which extracts a character string from a text. It is a flowchart which shows an example of the process sequence of the conversion candidate determination process of a character string. It is a flowchart which shows an example of the process sequence of the search process of the character string table shown in FIG. It is a flowchart which shows an example of the process sequence of the conversion candidate determination process of the character string using a log | history table. 13 is a flowchart illustrating an example of a processing procedure of a history table search process illustrated in FIG. 12.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a functional block diagram of a text generation apparatus 10 according to an embodiment of the present invention. The sentence generation device 10 includes an input unit 11, an input interface unit 12, a display unit 13, an output interface unit 14, a communication interface unit 15, a storage unit 16, a sentence generation unit 17, an e-mail processing unit 18, a character string registration unit 19, A character string converter 20 is provided. The storage unit 16, the character string registration unit 19, and the character string conversion unit 20 constitute a character string conversion device.

  Here, the input interface unit 12, the output interface unit 14, the communication interface unit 15, the storage unit 16, the text generation unit 17, the e-mail processing unit 18, the character string registration unit 19, and the character string conversion unit 20 are connected via the system bus 21. Connected. The input unit 11 and the input interface unit 12, the display unit 13 and the display interface unit 14 are connected to each other, and the communication interface unit 15 is connected to the network 22.

  The input unit 11 is an input device such as a keyboard, a mouse, or a touch panel. The input interface unit 12 is an interface unit that transmits information input by the input unit 11 via the system bus 21 to each functional unit. The display unit 13 is a display device such as a liquid crystal display, a CRT (Cathode Ray Tube) display, or a projector. The output interface unit 14 is an interface unit that outputs information received from each function unit via the system bus 21 to the display unit 13. The communication interface unit 15 is an interface unit that performs communication with an external device via the network 22.

  The storage unit 16 is a storage device such as a memory (such as a semiconductor memory) or a hard disk device. The storage unit 16 stores conversion dictionary data 16a, sentence data 16b, a character string table 16c, and a delimiter table 16d.

  The conversion dictionary data 16a is dictionary data in which kana and kanji, katakana, numbers, alphabets, and the like that are candidates for conversion are stored in association with each other. The sentence data 16b is data storing sentences such as e-mails. FIG. 2 is a diagram illustrating an example of the text data 16b. As shown in Fig. 2, for example, in the sentence data 16b, "I'm tired of today's practice. The intense heat continues, but let's do our best for the game. Please remember me ".

  The character string table 16c is data in which character strings extracted from sentences stored in the sentence data 16b are stored. FIG. 3 is a diagram illustrating an example of the character string table 16c. As shown in FIG. 3, in the character string table 16c, "I'm tired of today's practice", "The severe heat continues," "Let's do our best for the game." A character string such as “Please practice tomorrow at 9 o'clock” is stored.

  The delimiter table 16d is data that stores delimiters that delimit a sentence into a plurality of character strings when a character string is extracted from the sentence stored in the sentence data 16b. FIG. 4 is a diagram illustrating an example of the delimiter table 16d. As shown in FIG. 4, delimiter symbols such as “.”, “,”, “!”, “?”, “New line symbol”, and the like are registered in the delimiter table 16d.

  The sentence generation unit 17 is a processing unit that generates a sentence in response to an input from the operator received by the input unit 11. When the generation of the sentence is completed, the sentence generation unit 17 stores the generated sentence as the sentence data 16b. Further, the sentence generation unit 17 transmits a generation completion signal notifying the character string registration unit 19 that the generation of the sentence has been completed.

  The email processing unit 18 is a processing unit that performs processing such as transmission / reception of emails. When receiving an e-mail, the e-mail processing unit 18 performs processing for storing the e-mail text in the text data 16b, processing for transmitting the text generated by the text generation unit 17 by e-mail, and the like.

  When the character string registration unit 19 receives a generation completion signal from the text generation unit 17, the character string registration unit 19 extracts a character string from the text stored in the text data 16b, and stores the extracted character string in the character string table 16c. It is.

  Specifically, when extracting the character string data from the sentence, the character string registration unit 19 sequentially compares each character from the beginning to the end of the sentence with the delimiter stored in the delimiter table 16d, It is determined whether each character in the sentence matches any delimiter.

  When the character in the sentence matches any of the delimiters, the character string registration unit 19 starts the character next to the character that matched the delimiter immediately before (if there is no character that matched the delimiter immediately before, The character string from the character) to the character that currently matches the delimiter is extracted, and the extracted character string is added to the top of the character string table 16c. As described above, when the character string is added to the character string table 16c, the operator does not need to perform an operation, so that the burden on the operator can be reduced.

  Thereafter, the character string registration unit 19 performs character string extraction processing when the number of character strings extracted from the sentence reaches a predetermined upper limit value or when the comparison with the delimiter is completed up to the last character of the sentence. To complete. For example, when a character string is extracted from the text stored in the document data 16b shown in FIG. 2 based on the delimiter table 16d shown in FIG. 4, the character string is stored in the character string table 16c as shown in FIG. be registered.

  By providing the above upper limit for the total number of character strings extracted from one sentence, the following effects can be obtained. In general, in a sentence such as an e-mail, a character string that is likely to be reused is often input at the beginning of the sentence, such as a reply phrase or a fixed phrase. However, if all of the following sentences are stored, storing all of them causes the storage area of the storage unit 16 reserved for the character string table 16c to be filled by storing a large number of sentences that are unlikely to be reused. It becomes impossible to extract a character string that is highly likely to be reused at the beginning of the e-mail. Therefore, by providing a predetermined upper limit as described above, a highly reusable sentence can be extracted from the top part of more e-mails and stored in the character string table 16c.

  Here, when the generation of the sentence is completed, the sentence generation unit 17 transmits a generation completion signal to the character string registration unit 19. Specifically, the sentence generation unit 17 includes the input unit 11. When the operator performs an operation to save the sentence via the, it is determined that the generation of the sentence is completed, and a generation completion signal is transmitted. This prevents a character string from being extracted from a completed sentence, not from a sentence in the middle of generation that may be corrected by the operator, and preventing a character string including an error from being stored in the character string table 16c. can do.

  Alternatively, when the operator performs an operation of sending an e-mail via the input unit 11, the e-mail processing unit 18 detects the operation and generates a generation completion signal indicating that the generation of the sentence is completed. It may be transmitted to the column registration unit 19. In e-mail, the text may be edited before sending, so by extracting the character string when sending the e-mail, the character string is extracted from the completed sentence and the extracted character string is reused Will be able to.

  In addition, when storing the extracted character string in the character string table 16c, the character string registration unit 19 compares the conversion candidate registered in the conversion dictionary data 16a with the extracted character string, and extracts the extracted character string. If there is a conversion candidate that matches the column, the extracted character string may not be stored in the character string table 16c. Since the character string that can be converted using the conversion dictionary data 16a can be selected from the conversion candidates stored in the conversion dictionary data 16a, the same character string as the conversion candidate is stored in the character string table 16c, and the same character as the conversion candidate at the time of conversion is stored. Displaying a column with conversion candidates is redundant and hinders the operator from looking for a character string. Thus, by excluding the extracted character string having the character string that matches the conversion candidate stored in the conversion dictionary data 16a from the storage target for the character string table 16c, the above redundancy is eliminated, It becomes easier for the operator to search for the target character string.

  Alternatively, when storing the extracted character string in the character string table 16c, the character string registration unit 19 may store only a character string having a predetermined number of characters or more in the character string table 16c. In the example described above, when the extracted character string is stored in the character string table 16c, the extracted character string is compared with the character string stored in the conversion dictionary data 16a. The comparison process with all character strings stored in the dictionary data 16a takes time. Since there is a high possibility that a character string with a small number of characters is included in the conversion dictionary data 16a, by storing only a character string having a predetermined number of characters or more in the character string table 16c, the character string can be obtained in a short processing time. Can be stored, and the operator can easily search for the target character string.

  Further, when storing the extracted character string in the character string table 16c, the character string registration unit 19 may store the extracted character string in the character string table 16c except for the end delimiter. Here, this delimiter is a delimiter stored in the delimiter table 16d.

  A symbol used as a delimiter may be changed depending on a sentence to be input. For example, if you want to strengthen the vocabulary of the sentence “Thank you.”, It is desirable to change the delimiter at the end of the sentence so that it says “Thank you!”. In such a case, if a delimiter is included at the end of the character string stored in the character string table 16c, it is necessary to once delete the delimiter. Therefore, if the character string is stored in the character string table 16c with the delimiter removed in advance, it is not necessary to delete the delimiter and only a character such as “!” Needs to be added as necessary.

  In addition, when the character string registration unit 19 stores the extracted character string in the character string table 16c, the extracted character string is “city”, “road”, “prefecture”, “prefecture”, “city”. , "City", "town", "village", "county", "Large", "character" in addition to the character string that represents any administrative division, You may make it memorize | store in the character string table 16c the character string which remove | excluded the character from the head character of the extracted character string to the character which shows an administrative division from the extracted character string.

  For example, the character string registration unit 19 uses the character string “Tokyo Metropolitan Chiyoda-ku Kasumigaseki 3-4-3” for the extracted character string “Tokyo Metropolitan Chiyoda-ku Kasumigaseki 4-3-3” The character string “Chigida-ku 3-chome 4-3-3, Chiyoda-ku” excluding “Tokyo” and the character string “Kasumigaseki 3-chome 4--3,” excluding “Tokyo” to “Chiyoda-ku” You may make it memorize | store in the column table 16c.

  Specifically, the character string registration unit 19 sequentially compares the characters with the characters indicating the administrative divisions from the first character of the extracted character string, and the characters are “city”, “road”, “prefecture”, “prefecture”. , "City", "ku", "town", "village", "county", "Large", "letter", if it matches any of the character string from the beginning to the character string table 16c.

  Alternatively, the character string registration unit 19 stores a character string table representing administrative divisions such as “Tokyo” and “Chiyoda Ward” in the storage unit 16, and sequentially extracts characters from the head to the end of the table. You may compare a row | line | column and the character string showing an administrative division. If the extracted character string partially matches the character string representing the administrative district, the character string registration unit 19 extracts the characters from the first character of the extracted character string to the last character of the partially matching character string. The obtained character string is stored in the character string table 16c.

  Here, the character string representing the administrative division excluded from the storage processing target for the character string table 16c may be limited to the character string indicating the prefecture name. As a result, the number of character strings registered in the character string table 16c for one extracted character string can be at most two.

  When inputting an address as a character, it is common to omit a character string representing the first administrative division such as “Tokyo”. According to the above method, it is possible to easily input a character string excluding the character string representing the administrative section of the head portion by using an address previously input by the operator.

  The character string conversion unit 20 converts a character string input by the operator and outputs a character string stored in the character string table 16c as a conversion candidate for character string conversion in the next and subsequent sentence generation. It is a processing part to perform.

  Specifically, the character string conversion unit 20 detects a character input operation performed by the operator via the input unit 11 by receiving a signal from the input interface unit 12, and outputs the input character string as an output interface. The character string is output to the unit 14 and displayed on the display unit 13. FIG. 5 is a diagram illustrating an example of an input character string displayed on the display unit 13. In the example of FIG. 5, the operator inputs “honjitsu”.

  Then, the character string conversion unit 20 displays the conversion candidate list for the input character string on the display unit 13 via the output interface unit 14 with reference to the conversion dictionary data 16a. FIG. 6 is a diagram illustrating an example of the conversion candidate list 30 displayed on the display unit 13. In the example of FIG. 6, conversion candidates “Today”, “Today”, and “Today” for the input character string “Honjitsu” are displayed as the conversion candidate list 30.

  Thereafter, the character string conversion unit 20 determines whether or not the operator has performed a selection operation for conversion candidates by detecting a selection operation signal from the input interface unit 12. By selecting the conversion candidate, the conversion result of the input character string input by the operator is confirmed. When the conversion candidate selection operation is performed, the character string conversion unit 20 uses the selected conversion candidate character string as a search keyword, and converts the conversion candidate character string from among the character strings stored in the character string table 16c. Search for a character string that partially matches. Then, the character string conversion unit 20 causes the display unit 13 to display a character string obtained by excluding the conversion candidate character string from the searched character string via the output interface unit 14.

  FIG. 7 is a diagram illustrating an example of the conversion candidate list 40 displayed on the display unit 13. In the example of FIG. 7, the conversion candidate “Today” is selected by the operator. In this case, the character string “stored today ’s practice” stored in the character string table 16c is searched as a character string that partially matches the conversion candidate “today”. A character string excluding “Today's” “Thank you for your practice” is displayed as the conversion candidate list 40. In the example of FIG. 7, only one character string is displayed. However, when there are a plurality of searched character strings, the plurality of searched character strings are displayed as the conversion candidate list 40.

  Then, the character string conversion unit 20 determines whether or not a character string has been selected from the conversion candidate list 40 by detecting the selection operation signal from the input interface unit 12. Then, when a character string selection operation is performed, the character string conversion unit 20 inserts the selected character string at the cursor position of the sentence being generated.

  FIG. 8 is a diagram illustrating an example of text after insertion of a character string displayed on the display unit 13. FIG. 8 shows a case where the character string “I have practiced you” has been selected from the conversion candidate list 40 shown in FIG. 7 and the character string “I have practiced you” has been inserted at the cursor position of the sentence being generated. It is shown.

  In this way, a character string including the character string converted immediately before is searched from the character strings input at the time of past sentence generation and stored in the character string table 16c using the character string converted immediately before as a search keyword. Since the character string obtained as a result of the search is displayed so as to be selectable, the operation of the operator selecting the character string input at the time of past sentence generation can be reduced.

  In addition, since the character string input at the time of past sentence generation is displayed as a conversion candidate following the selection operation of the immediately preceding conversion candidate, the character string connected to the immediately preceding character string is selected at a timing desired by the operator. , You can enter that string.

  Furthermore, a character string including the character string converted immediately before is detected from the character strings input at the time of past sentence generation and stored in the character string table 16c using the character string converted immediately before as a search keyword. In order to read a character string input at the time of past sentence generation, it is not necessary to register the reading kana of the character string in advance and perform character string conversion using the reading kana, and the registered reading Processing such as morphological analysis for acquiring a pseudonym is also unnecessary, so that the memory usage area can be saved.

  For the character string selected in the previous conversion (for example, the character string “today” in FIG. 7), the character string conversion unit 20 executes the selection operation of the conversion candidate by the operator in the conversion candidate list 30 shown in FIG. 6. When detected, the character string conversion unit 20 inserts it at the cursor position of the document being generated. When the character string conversion unit 20 detects the execution of the conversion candidate selection operation by the operator in the conversion candidate list 40 shown in FIG. 7, the character string selected in the previous conversion is selected from the conversion candidate list 40. The combined character string may be inserted into the cursor position by the character string conversion unit 20.

  Next, the process procedure of the extraction process which extracts a character string from a sentence is demonstrated. FIG. 9 is a flowchart illustrating an example of a processing procedure of extraction processing for extracting a character string from a sentence. As shown in FIG. 9, the character string registration unit 19 of the sentence generation device 10 detects that the generation of the sentence is completed (step S101). Then, the character string registration unit 19 refers to the delimiter table 16d stored in the storage unit 16, delimits the sentence included in the sentence data 16b at the position of the delimiter, and extracts the character string delimited by the delimiter (Step S102). Thereafter, the character string registration unit 19 stores the extracted character string in the character string table 16c (step S103), and ends the character string extraction process.

  Next, a processing procedure for character string conversion candidate determination processing will be described. FIG. 10 is a flowchart illustrating an example of a processing procedure for character string conversion candidate determination processing. As shown in FIG. 10, the character string conversion unit 20 of the sentence generation device 10 detects that one of the conversion candidates is selected in the conversion candidate list 30 as shown in FIG. 6 (step S201).

  Then, the character string conversion unit 20 uses the selected conversion candidate character string as a search keyword, and searches the character string stored in the character string table 16c for a character string that partially matches the search keyword (step S202). .

  Subsequently, the character string conversion unit 20 displays the searched character strings on the display unit 13 as the conversion candidate list 40 (step S203). When the operator selects one character string from the character strings displayed as the conversion candidate list 40 via the input unit 11, the character string conversion unit 20 receives information on the selected character string. (Step S204). Thereafter, the character string conversion unit 20 inserts the selected character string at the cursor position of the sentence being generated (step S205), and ends the conversion candidate determination process.

  Next, the processing procedure of the search processing of the character string table 16c shown in step S202 of FIG. 10 will be described in detail. FIG. 11 is a flowchart illustrating an example of a processing procedure of search processing of the character string table 16c illustrated in FIG. As illustrated in FIG. 11, the character string conversion unit 20 of the sentence generation device 10 performs a process of selecting the first character string stored in the character string table 10 (step S301).

  Then, the character string conversion unit 20 checks whether or not the first character string in the character string table 10 has been selected (step S302). If the first character string cannot be selected because the character string is not stored in the character string table 10 (NO in step S302), the search process is terminated.

  When the first character string can be selected (YES in step S302), the character string conversion unit 20 compares the selected character string with the search keyword (conversion candidate selected in the conversion candidate list 30) (step S303). ). Then, the character string conversion unit 20 checks whether or not the selected character string partially matches the search keyword (step S304).

  If the selected character string partially matches the search keyword (YES in step S304), the character string conversion unit 20 adds the selected character string to the end of the conversion candidate list 40 (step S305). When the selected character string does not partially match the search keyword (NO in step S304), or when the selected character string is added to the end of the conversion candidate list 40 (step S305), the character string conversion unit 20 In the character string table 16c, a process for selecting the next character string is performed (step S306).

  Thereafter, the process proceeds to step S302, and the character string conversion unit 20 checks whether or not the next character string can be selected (step S302). If the next character string can be selected (YES in step S302), the next character string is checked. The processing after step S303 is executed for the character string. If the next character string cannot be selected because there is no next character string (NO in step S302), the search process is terminated.

  Here, the upper limit of the number of character strings to be added to the conversion candidate list 40 is determined, and the character strings stored in the character string table 16c in the order from the date and time stored in the character string table 16c to the current time are converted into the conversion candidate list 40. 11 may be terminated and the conversion candidate list 40 may be displayed when the number of character strings added to the conversion candidate list 40 reaches the upper limit.

  For example, the character string conversion unit 20 determines whether or not the number of character strings added to the conversion candidate list 40 has reached the upper limit after the process of step S305 in FIG. 11, and the number of character strings reaches the upper limit. If it has reached, the search process shown in FIG. 11 may be terminated. As a result, only the latest character string among the character strings stored in the character string table 16c is displayed in the conversion candidate list 40, so that the character strings to be reused can be narrowed down to those recently used by the operator. .

  In addition, a character string previously selected by the operator from the conversion candidate list 40 may be preferentially displayed on the conversion candidate list 40. When the sentence is generated, the sentence is divided at the position of the delimiter, and the character string formed by dividing the sentence is automatically stored in the character string table 16, and the character string stored in the character string table 16c is Are displayed in the conversion candidate list 40. In this case, when a character string is selected from the conversion candidate list 40, the character string conversion unit 20 stores the selected character string as a learned character string at the beginning of a history table different from the character string table 16c. To. The history table is searched before the character string table 16c, and the searched learning character string is preferentially displayed on the conversion candidate list 40.

Next, a processing procedure for character string conversion candidate determination processing using this history table will be described. FIG. 12 is a flowchart illustrating an example of a processing procedure of character string conversion candidate determination processing using a history table. As shown in FIG. 12, the character string conversion unit 20 of the sentence generation device 10 detects that one of the conversion candidates is selected in the conversion candidate list 30 as shown in FIG. 6 (step S401).

  Then, the character string conversion unit 20 uses the selected conversion candidate character string as a search keyword, and searches the learned character string stored in the history table for a character string that partially matches the search keyword (step S402). Further, the character string conversion unit 20 searches the character string stored in the character string table 16c for a character string that partially matches the search keyword (step S403).

  Subsequently, the character string conversion unit 20 displays the learned character string searched from the history table or the character string searched from the character string table 16c on the display unit 13 as the conversion candidate list 40 (step S404). At that time, the character string conversion unit 20 displays the learning character string searched from the history table in the conversion candidate list 40 on the front side of the character string searched from the character string table 16c, and is searched from the history table. The operator can easily check the learned character string. In addition, when the character string searched from the character string table 16c includes a character string that overlaps with the learning character string, the character string conversion unit 20 does not display the duplicate character string searched from the character string table 16c. .

  Thereafter, when the operator selects a character string from among the character strings displayed as the conversion candidate list 40 via the input unit 11, the character string conversion unit 20 receives information on the selected character string (step S1). S405). Thereafter, the character string conversion unit 20 inserts the selected character string at the cursor position of the sentence being generated (step S406), and ends the conversion candidate determination process.

  Next, the processing procedure of the history table search process shown in step S402 of FIG. 12 will be described in detail. FIG. 13 is a flowchart illustrating an example of a processing procedure of the history table search processing illustrated in FIG. 12. As illustrated in FIG. 13, the character string conversion unit 20 of the sentence generation device 10 selects the first learning character string stored in the history table (step S501).

  Then, the character string conversion unit 20 checks whether or not the first learning character string in the history table has been selected (step S502). If the first learned character string cannot be selected because the learned character string is not stored in the history table (NO in step S502), the search process is terminated.

  If the first learning character string can be selected (YES in step S502), the character string conversion unit 20 compares the selected learning character string with the search keyword (conversion candidate selected in the conversion candidate list 30) ( Step S503). Then, the character string conversion unit 20 checks whether or not the selected learning character string partially matches the search keyword (step S504).

  If the selected learning character string partially matches the search keyword (YES in step S504), the character string conversion unit 20 adds the selected learning character string to the end of the conversion candidate list 40 (step S505). When the selected learning character string does not partially match the search keyword (NO in step S504), or when the selected learning character string is added to the end of the conversion candidate list 40 (step S505), the character string conversion unit 20 Selects the next learning character string in the history table (step S506).

  Thereafter, the process proceeds to step S502, where the character string converter 20 checks whether or not the next learning character string has been selected (step S502), and if the next learning character string can be selected (YES in step S502). Then, the processing after step S503 is executed for the next learned character string. If the next learning character string cannot be selected because there is no next learning character string or the like (NO in step S502), the search process is terminated.

  Thus, by displaying the learning character string once selected by the operator in the conversion candidate list 40 with priority, it is possible to easily reuse a character string input in the past, which is frequently used by the operator. become able to.

  Further, when a plurality of application software for generating a sentence is installed in the sentence generating apparatus 10, a character string table 16c is prepared for each application software, and a character string extracted from the sentence is stored. The character string registration unit 19 stores the character string in the character string table 16c corresponding to the application software activated at that time, and the character string conversion unit 20 stores the character string stored in the character string table 16c. When displaying as the conversion candidate list 40, a character string may be searched from the character string table 16c corresponding to the currently activated application software.

  For example, when the generation of a sentence is completed using e-mail application software, the character string registration unit 19 stores the extracted character string in the character string table 16c associated with the e-mail application software. When generating the next and subsequent sentences using the mail application software, a character string is searched from the character string table 16c associated with the electronic mail application software.

  In this way, a character string that is used only with specific application software can be displayed as a conversion candidate only when that application software is running, so it can only be used with other application software. Such an extra character string can be prevented from being displayed as a conversion candidate, and the operator can easily find the target character string.

  Now, the description has been made centering on the embodiments of the character string conversion device and the character string conversion method so far, but the present invention is not limited to these embodiments, and in order to realize the function of the character string conversion device. The present invention may be implemented as a form of a computer program or a form of a computer-readable recording medium on which the computer program is recorded.

  Here, as a recording medium, a disk system (for example, magnetic disk, optical disk, etc.), a card system (for example, memory card, optical card, etc.), a semiconductor memory system (for example, ROM, nonvolatile memory, etc.), a tape system (for example) For example, various forms such as a magnetic tape and a cassette tape can be employed.

  By recording and distributing a computer program for realizing the functions of the character string conversion device of the present embodiment described above or a computer program for causing a computer to execute the character string conversion method on these recording media, the cost can be reduced, and Portability and versatility can be improved.

  Then, the above-mentioned recording medium is mounted on the computer, the computer program recorded on the recording medium is read out by the computer and stored in the memory, and the processor (CPU: Central Processing Unit, MPU: Micro Processing Unit) included in the computer is the computer program. Is read from the memory and executed, the function of the character string conversion apparatus according to the present embodiment can be realized, and the character string conversion method can be executed.

  The present invention is not limited to the above-described embodiments, and various modifications and corrections can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 10 ... Text production | generation apparatus, 11 ... Input part, 12 ... Input interface part, 13 ... Display part, 14 ... Output interface part, 15 ... Communication interface part, 16 ... Memory | storage part, 16a ... Conversion dictionary data, 16b ... Text data, 16c ... Character string table, 16d ... Delimiter table, 17 ... Text generation unit, 18 ... E-mail processing unit, 19 ... Character string registration unit, 20 ... Character string conversion unit, 30, 40 ... Conversion candidate list

Claims (14)

A string converter for converting an input string,
A storage unit for storing an output character string used for generating a sentence;
When it is detected whether or not an operation for selecting one conversion candidate from among conversion candidates for character string conversion of the input character string has been performed, and when it is detected that an operation for selecting the one conversion candidate has been performed The output character string stored in the storage unit is searched for an output character string that partially matches the selected conversion candidate, and the searched output character string is displayed on the display unit in a selectable manner. A character string conversion unit that outputs the selected output character string when one output character string is selected from the output character strings;
A character string conversion device comprising:   When it is detected that the generation of text has been completed, based on the delimiter information that registers the delimiters that separate the sentences, the generated text is divided into multiple character strings, and multiple characters are created by dividing the text The character string conversion device according to claim 1, further comprising a character string registration unit that stores a string in the storage unit as the output character string.   When the character string registration unit detects transmission of an e-mail, the character string registration unit divides a sentence generated for transmission of the e-mail based on the delimiter into a plurality of character strings, and the generated sentence is delimited. The character string conversion device according to claim 2, wherein a plurality of generated character strings are stored in the storage unit as the output character string.   The character string conversion unit performs character string conversion using a conversion dictionary in which conversion candidates for character string conversion of the input character string are registered, and the character string registration unit includes a plurality of characters formed by dividing the sentence. 4. The character string according to claim 2, wherein a character string that matches a conversion candidate registered in the conversion dictionary is excluded from objects to be stored as the output character string in the storage unit. 5. Conversion device.   5. The character string registration unit stores only a character string of a predetermined number of characters or more when storing a plurality of character strings formed by dividing the sentence in the storage unit. The character string conversion device according to any one of the above.   The character string registration unit stores a character string with a predetermined number as an upper limit for one sentence when the storage unit stores a plurality of character strings formed by dividing the sentence. The character string conversion device according to any one of claims 2 to 5.   The character string registration unit, the character string formed by dividing the sentence is a character indicating an administrative division of any of the capital, road, prefecture, prefecture, city, ward, town, village, county, large character, character. A character string excluding characters from the first character of the character string formed by dividing the sentence to the character indicating the administrative district is stored as the output character string in the storage unit. The character string conversion device according to any one of claims 2 to 6.   The character string registration unit, when the sentence is divided into a plurality of character strings, stores a plurality of character strings formed by dividing the sentence in the storage unit excluding the delimiter symbol. The character string conversion device according to any one of claims 2 to 7.   When the character string registration unit stores a plurality of character strings formed by dividing the sentence in the storage unit, the character string registration unit associates with the application software activated when the plurality of character strings are stored. A plurality of separated character strings are stored as the output character string, and the character string conversion unit is stored in association with application software activated when an operation for selecting the one conversion candidate is performed. 9. An output character string that partially matches the selected conversion candidate is searched from the selected character string, and the searched output character string is displayed on the display unit so as to be selectable. The character string conversion device according to claim 1.   When one output character string is selected from the displayed output character string, the character string registration unit stores the selected output character string in the storage unit as a learning character string, and the character string conversion unit Is an output character string or learning that partially matches the selected conversion candidate among the output character string stored in the storage unit and the learning character string when an operation for selecting the one conversion candidate is performed. The character string is searched, and when the output character string and the learning character string are searched, the searched learning character string is displayed in preference to the output character string. The character string conversion device according to item 1.   The character string registration unit stores the learning character string in association with the application software activated when the learning character string is stored when the selected output character string is stored in the storage unit as the learning character string. The character string conversion unit partially matches the conversion candidate selected from the learning character string stored in association with the application software activated when the operation for selecting the one conversion candidate is performed. The character string conversion device according to any one of claims 2 to 10, wherein a learning character string to be searched is searched and the searched learning character string is displayed on a display unit. A string conversion method for converting an input string,
A detection step of detecting whether or not an operation for selecting one conversion candidate from conversion candidates for character string conversion of the input character string has been performed;
When it is detected in the detection step that an operation for selecting the one conversion candidate has been performed, an output character string that partially matches the selected conversion candidate is searched from the output character strings stored in the storage unit A search step to
The output character string searched in the search step is displayed in a selectable manner on the display unit, and when one output character string is selected from the displayed output character strings, the selected output character string is output. An output step;
A character string conversion method comprising:   A computer program for causing a computer to execute the character string conversion method according to claim 12.   A computer-readable recording medium having the computer program according to claim 13 recorded thereon.

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