JP2012113579A - Character input support device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to effectively and quickly perform desired character input with an easy input operation.SOLUTION: A mail address and a keyword used for retrieval are registered in a main memory 202 beforehand. When a CPU 201 and the main memory 202 have acquired a mail which was newly received, they extract a difference with a mail whose transmission source is same as that of the newly received mail among past mails stored in an HDD 203 and register the extracted difference by associating it with the keyword in the main memory 202. When the keyword is inputted through an input device 204, the preregistered difference which is associated with the keyword is displayed as selectable. By this way, character input is supported.

Description

  The present invention relates to a character input support device, and more particularly to a character input support device that facilitates character input when creating a mail.

  In recent years, communication using e-mail has become common regardless of business scenes and private scenes, and the opportunity to create e-mails accordingly has increased, but for that reason it is very troublesome to create all e-mail texts from scratch. Become. Therefore, for example, some mail client software is provided with a search window so that a new mail can be created by reusing the text of the mail transmitted / received in the past. Then, the user can input the sender name and subject in the search window, cut out sentences and words from the text of past emails that hit the search, and copy them to the body of new emails for reuse. .

  In particular, when composing an e-mail with a mobile phone or the like, the user inputs a character string of 50 sounds or more using ten or more numeric keys, so that the same button is pressed a plurality of times to designate one character. It is necessary to press. Therefore, when creating a new mail text from scratch, a more troublesome character input operation is required. Thus, for example, Patent Document 1 discloses a saving input function for presenting a converted character string as a conversion candidate by simply inputting the first few “reading characters”.

  Patent Document 2 discloses a technique for extracting independent words in received mail by morphological analysis, learning words, and presenting them as prediction candidates in order to reduce the trouble of inputting characters when creating a reply mail. It is disclosed.

Japanese Patent Laid-Open No. 2002-063158 JP 2001-273291 A

  However, in the above conventional technique, for example, when a search function of mail client software is used, there is a problem that the user is forced to perform an operation. In other words, the search processing system (processing system starting from entering the search key in the search window of the mail client software) is a separate process from the mail creation processing system (processing system that inputs characters in the mail creation window, etc.). Run as. Therefore, the user needs to change the operation target from the mail creation window to the mail client software (change the active window) and enter a desired search key in the search window of the client software. Then, in order to copy the reusable sentence found as a result of the search, the user needs to switch the operation target again and return to the mail creation processing system.

  In addition, in the character input candidate presentation technique disclosed in Patent Document 2, morphological analysis is performed on the received mail, and only independent words are extracted and learned. Therefore, a store name that makes sense with a plurality of independent words is independent. The user only needs to input each word when reusing it, and the convenience is not sufficient. Also, URLs included in e-mails are not useful because only meaningless alphanumeric characters are learned as conversion candidates even if morphological analysis is performed.

  The present invention has been made in view of the circumstances as described above. By presenting conversion candidates extracted in advance from past received mails by differential extraction at the time of character input, it is possible to efficiently and quickly perform simple input operations. An object of the present invention is to provide a character input support device capable of performing desired character input.

  In order to solve the above-mentioned problem, a first technical means of the present invention is a character input support device having a character input means for inputting characters and a character input support unit for supporting character input by the character input means. A data registration unit for registering the sender identification information and keywords of the mail used for the search, a past mail holding unit for acquiring and holding the received mail, and acquiring the newly received mail for the search. Based on the sender identification information registered in the data registration unit, the newly received mail matches the newly received mail among the mail stored in the mail storage means, and the newly received mail A difference extraction unit that extracts a difference, the data registration unit registers the difference extracted by the difference extraction unit in association with the keyword, and the character input support unit includes the character input unit. When the keyword is input by means by presenting selectable differential registered in the data registration unit in association with the keyword, which is the input, in which is characterized in that supporting character input.

  According to a second technical means, in the first technical means, when the difference extraction unit compares the mails with the same transmission source, the difference is extracted by comparing the mail text line by line. The part registers the character string of the first line of the mail body as a conversion candidate from the differences extracted by comparison for each line, and the character input support part, when the keyword is input, The present invention is characterized in that a conversion candidate based on a character string on the first line is presented so as to be selectable and character input is supported.

  According to a third technical means, in the second technical means, a character string in the second and subsequent lines of the mail body is converted into a second conversion candidate from the difference extracted by the data registration unit for each line. The character input support unit can select a second conversion candidate related to the selected conversion candidate when the conversion candidate based on the character string in the first line presented to be selectable is selected. It is characterized by being presented in

  A fourth technical means is the character input support device according to any one of the first to third aspects, wherein the character input support unit is configured to generate the data based on an arbitrary character or character string input to the character input means. The difference registered in the registration unit is searched, and at least a difference having a character or character string partially matching the input character or character string is selectably presented to support character input. .

  According to the present invention, by extracting a mechanically added character string from a difference from a received mail in a fixed format distributed from a specific address and registering it as a conversion candidate for a specific “reading character”, When inputting e-mail, it is possible to efficiently input a character string registered as a conversion candidate or cooperation prediction candidate for a specific “reading character”.

It is a figure which shows the registration screen of the character and e-mail address used as the keyword for a search. It is a figure explaining the process which compares a received mail with a character input assistance apparatus, and extracts a difference. It is a figure which shows the example of registration of the user dictionary registered based on the extracted difference. It is a figure explaining the usage method of the registered user dictionary. It is a figure showing an example of the functional block in the character input assistance apparatus of a present Example. It is a figure which shows an example of the hardware constitutions of the character input assistance apparatus at the time of implement | achieving each functional component requirement of FIG. 5 as hardware. In the flowchart which shows an example of the process by the character input assistance apparatus of this invention, The flowchart which shows the other example of the process by the character input assistance apparatus of this invention. It is a figure explaining the other example of the process which selects a prediction candidate on the mail preparation screen of a character input assistance apparatus.

  Embodiments of the present invention will be described below with reference to the drawings. Note that the present invention is not limited to these embodiments, and can be implemented in various modes without departing from the spirit of the present invention.

Example 1
In the embodiment of the character input support device according to the present invention, first, a fixed-format mail address that the user wants to extract a character string and a search keyword for calling a character string conversion candidate are registered. This keyword for search is called “reading character”. The mail address corresponds to the sender identification information of the present invention.
Here, the difference in the mail text is extracted and registered from the mail transmitted from the same address as the registered mail address. The read character is used to call the registered information as a character string conversion candidate when the next mail is created.

  FIG. 1 is a diagram showing a screen for registering read characters and e-mail addresses as search keywords. First, the user displays a registration screen 1 as shown in FIG. 1 using a character input support device, and inputs a mail address in a fixed format for extracting a character string to the mail address input unit 11. In addition, a read character for calling the extracted character string as a conversion candidate is input to the read character input unit 12. In the character input support device, these input mail addresses and reading characters are registered. In this example, it is assumed that the registered reading character is “Shokutsuu”.

  FIG. 2 is a diagram for explaining processing for comparing received mails and extracting a difference in the character input support device. First, as shown in FIG. 2 (A), when a new received mail with the address registered on the registration screen of FIG. It is determined whether or not it has been received. The mail receiving means can use the mail transmission / reception function of a device (for example, a PC or a portable terminal device) to which the character input support device is applied. In the character input support device, the received mail received by the mail receiving means is acquired. Further, the character input support device may have a mail transmission / reception function.

  If a mail from the same address has been received in the past, a difference is extracted by comparing line by line between the mail and the newly received mail. In this case, when the difference is larger than a certain amount, even if the mail has the same source address, the mail extraction format is changed and the process is terminated without performing the difference extraction process. There are several methods for extracting the difference for each row, but the present invention is not particularly limited.

FIG. 2B is an extracted character string of the difference extracted by the difference extraction process. In this example, the store name in the first line of the mail body and the URL in the second line of the mail body are extracted by the differential extraction process of the two mails of mail 1 and mail 2 having the same sender address. To do.
Then, the first line of the extracted difference is registered as a conversion candidate corresponding to the read character registered on the registration screen 1 in FIG. When comparing mails with the same source address, valid information may be included in these differences. In this case, the main information of the mail such as a store name is described in the first line of the difference. Therefore, the first line of the difference is registered as a pre-registered candidate character conversion candidate. In the example of FIG. 2B, each shop name in the first line extracted as a difference is registered as a conversion candidate corresponding to the read character “Shokutsuu”.

Also, if there is a second or subsequent line as the extracted difference, it is registered as a linked prediction candidate for the first line difference. The cooperative prediction candidate is displayed as a next prediction candidate that is linked to the selected conversion candidate after the conversion candidate corresponding to the reading character is displayed and selected.
Many of the second and subsequent lines of mail are often subordinate to the information on the first line, such as URL and phone number, and the character strings on the second and subsequent lines are linked to the selected character string on the first line. By displaying it as a prediction candidate, it becomes possible to continuously input necessary information.

  In this way, the character input support device extracts a difference compared to a mail transmitted in the past from the same transmission source address when a mail having a transmission address registered in advance is transmitted, and the extracted character string of the difference Register. This registration information is registered for each user and constitutes a user dictionary. Since the registration information in the user dictionary is expanded each time a mail is received, the character input support device has a learning function.

FIG. 3 is a diagram illustrating a registration example of a user dictionary registered based on the extracted difference.
In the user dictionary, the difference extracted by comparing mails with the same source address is registered for each mail. In this example, “Shokutsuu” is registered as a reading character registered in advance by the user, the character string of the store name on the first line extracted as the difference is registered as a conversion candidate, and the URL on the second line is further used as a cooperation prediction candidate. be registered. In this case, for the store name “ABCchina Makuhari store” in the mail 1, the URL in the second line of the email 1 is registered as a link prediction candidate, and for the store name “EFG Kaikai Makuhari store” in the mail 2, 2 URL of the 2nd line is registered as a cooperation prediction candidate.
The character string registration process is performed for each line of the mail. This is because when learning is performed in units of words as in morphological analysis, the character string is not valuable as information.

FIG. 4 is a diagram for explaining how to use a registered user dictionary. As described above, the character input support device extracts a difference from the received mail of the same transmission source, registers the difference information, and creates a user dictionary.
When a user creates a new mail using a character input support device, the user can create a mail with a simple operation using such a user dictionary. In this case, as shown in FIG. 4A, the user first opens the mail creation screen 2 and inputs an arbitrary character to the mail input unit 21. In this example, it is assumed that “Shokutsu” has been entered as a reading character.

  When a reading character is input, the character input support device determines whether or not the input reading character is registered in the user dictionary, and if registered, the conversion registered in association with the reading character. The candidates are displayed in the prediction candidate window 22 of the mail creation screen 2. The conversion candidate is the character information on the first line of the difference extracted when the same source mail is compared as described above. In this example, the conversion candidate registered corresponding to “Shokutsuu” is character information of each store name (ABCchina Makuhari store, EFG restaurant Kaihin Makuhari store).

  The user can select an arbitrary prediction candidate from the prediction candidates displayed in the prediction candidate window 22 corresponding to the input reading character. For example, it is assumed that “ABC china Makuhari store” is selected as the store name (FIG. 4B). When this selection is confirmed, the confirmed store name information is input to the mail input unit 21 of the mail creation screen 2 (FIG. 4C). Then, if a cooperative prediction candidate is registered for the confirmed conversion candidate, the cooperative prediction candidate is displayed in the prediction candidate window 22 (FIG. 4C). As described above, the cooperation prediction candidate is the character information on the second line of the difference extracted by the mail comparison. In this example, URL information of the store name “ABCchina Makuhari store” and the like are displayed as cooperation prediction candidates. When there is cooperation candidate information such as a telephone number in addition to the URL, the cooperation prediction candidate is also displayed in the prediction candidate window 22.

  The user can select an arbitrary prediction candidate from among the cooperative prediction candidates displayed in the prediction candidate window 22. For example, when a URL indicating a place is selected and confirmed, the confirmed URL is input to the mail input unit 21 following the input store name (FIG. 4D)).

  In addition, when there are a plurality of cooperation prediction candidates such as a URL and a telephone number, these can be displayed at once as the cooperation prediction candidates as shown in FIG. 4C. Is displayed in the prediction candidate window 22 as a cooperative prediction candidate, and when a URL is selected and input to the mail input unit 21, a telephone number is further displayed in the prediction candidate window 22 as the next cooperative prediction candidate. Good. In addition, since a line feed is necessary when actually creating a mail, when a character string extracted by comparing mails is registered as a cooperation candidate, a new line 23 is added at the beginning of the character string and registered. It may be.

  In this way, by displaying the conversion candidates for the good character, and further displaying the linked prediction candidates associated with the selected conversion candidate, the user can extract from a plurality of past mails by simply inputting one good character. E-mail can be created efficiently and easily while selecting useful character strings.

<Functional configuration>
FIG. 5 is a diagram illustrating an example of functional blocks in the character input support device of the present embodiment. The character input support device of the present invention has a mail creation function, and can be incorporated into a general device having a function of accepting a character input for mail creation from a user. Examples of devices to be incorporated include desktop PCs, notebook PCs / netbooks, smartphones, mobile phones, PHS, and PDAs (personal digital assistants).

  The function blocks of the character input support device described below can be realized as dedicated hardware, or can be realized as a combination of general-purpose hardware and software. Specifically, if a computer is used, a CPU, a main memory, a bus, or a secondary storage device (a hard disk, a non-volatile memory, a storage medium such as a CD or a DVD, a read drive for the medium, etc.), information Input devices used for input, printing equipment, display devices, other hardware components such as external peripheral devices, interfaces for external peripheral devices, communication interfaces, driver programs for controlling these hardware, Other examples include application programs and user interface applications.

Then, by CPU processing according to the program developed on the main memory, the data input from the input device or other interface, etc., and stored in the memory or hard disk is processed and accumulated, An instruction for controlling the software is generated. The present invention can be realized not only as an apparatus but also as a method.
A part of the invention can be configured as software. Further, a software product used to cause a computer to execute such software and a recording medium on which the product is fixed are naturally included in the technical scope of the present invention (the same applies throughout the present specification). .

  As shown in FIG. 5, the character input support device 100 of this embodiment includes a past mail holding unit 101, a character input unit 102, a newly received mail acquisition unit 103, a difference extraction unit 104, and a data registration unit. 105 and a character input support unit 106.

  The character input unit 102 has a function of allowing a user to input characters. For example, it has a function of inputting a reading address of a received mail that the user wants to extract a character string and a read character that is a keyword for calling the extracted character string as a conversion candidate. For example, the character input unit 102 can be realized by an input program including a CPU, a main memory, an input device, and a GUI (graphical user interface).

  The past mail holding unit 101 has a function of holding past mail that is sent mail and / or received mail, and can be realized by, for example, an HDD (hard disk drive), a flash memory, or other various storage media. The received mail held in the past mail holding unit 101 is managed in association with data such as a transmission source address and a mail text. Therefore, it is possible to use the address as a search key as a search target for searching for a received mail with the same address. The past mail holding unit 101 holds past received mail that should be originally stored as a communication history as described above.

  The new received mail acquisition unit 103 has a function of acquiring received mail, and is realized by, for example, a CPU, main memory, a new received mail acquisition unit including a received mail determination program to be subjected to differential extraction, and the like. In this embodiment, it is determined whether or not the source address of a newly received mail is a target for differential extraction processing, and in the case of an address for differential extraction processing, a past received mail of the same address is searched. A command is issued to the difference extraction unit 104 so as to extract the difference.

  When receiving a difference extraction command from the newly received mail acquisition unit 103, the difference extraction unit 104, based on the transmission source address specified as the transmission source address of the standard format reception mail that extracts the character string by the user, It has a function of searching for past received mail held in the mail holding unit 101 and a function of extracting a difference from a newly received mail. The difference extraction unit 104 can be realized by, for example, a CPU, a main memory, a search program, a difference extraction program, and the like.

  When the character input support device acquires a new received mail, the difference extraction unit 104 extracts a difference between the mail texts of the past received mail and the new received mail having the same transmission source address. If the difference is larger than a certain amount, it is determined that the e-mail provides other information such as a different format, and the character string difference extraction process is not performed. If the amount of character string difference is a certain amount or less, it is determined that the mail is in a fixed format with only useful information added, and character string difference extraction processing is performed. When there are a plurality of past received mails, a difference extraction is performed by comparing each past received mail with a new received mail.

  The data registration unit 105 has a function of registering a transmission source address and a reading character input by the user through the character input unit 102, and registering a difference character string extracted from the difference extraction unit 104 as a conversion candidate for the registered reading character. . The difference extracted at this time is registered in association with the registered character. Thereby, the character information of the difference linked | related with the input reading character can be extracted and shown at the time of the reading of a reading character. The data registration unit 105 can be realized by, for example, an HDD (hard disk drive), a flash memory, or other various storage media.

  The character input support unit 106 has a function of presenting a registered difference character string as a reading character conversion candidate, and can be realized by, for example, a text input support program including a CPU, a main memory, a display, and a GUI. The presented conversion candidates can be displayed on a display provided in a PC or portable terminal device to which the character input support device is applied. Further, the character input support device may include a display unit, and the conversion candidate presented by the character input support unit 106 may be displayed on the display unit. In addition, a display screen such as a display displays a mail creation screen for creating a mail using the character input support device, a registration screen for registering a search source address and a reading character, and the like.

  As described above, the character input support device according to the present embodiment allows the user to input a specific reading character when creating a mail to be transmitted, thereby including a character string including useful information that is differentially extracted from the received mail in a fixed format. Can be input in character strings instead of word units, and efficient character input becomes possible. Moreover, since the conversion candidate for the text is automatically registered every time the mail is received, the user can use it without performing an operation for updating the latest information. Even if there are multiple lines of useful character strings included in the email, it is registered as a cooperation prediction candidate. Therefore, it is possible to input a cooperation prediction candidate after the character string in the first line, which improves the efficiency of character input. realizable.

<Hardware configuration>
FIG. 6 is a diagram illustrating an example of a hardware configuration of the character input support device when the above functional components are realized as hardware. The operation of each hardware component in the mail creation process will be described with reference to FIG. As shown in FIG. 6, the character input support device 200 includes a CPU 201 and a main memory 202. The CPU 201 and the main memory 202 are for realizing the functions of the new mail acquisition unit 103, the difference extraction unit 104, the character input support unit 106, and the like in FIG. 5 and execute other various arithmetic processes.

The character input support apparatus 200 includes an HDD 203, an input device 204, and a display 205, and is provided with a system bus 206 that connects the elements to each other.
The HDD 203 implements the function of the past mail holding unit 101 in FIG. The HDD 203 stores, for example, mail reception history and past received mail.
The input device 204 realizes the function of the character input unit 102 in FIG. 5 in cooperation with the CPU 201, the main memory 202, and the like. The system bus 206 functions as a data communication path for transmitting / receiving information and processing. Note that the data registration unit 105 can realize the function in both or either of the HDD 203 and the main memory 202.

  A program is read into the main memory 202, and the CPU 201 refers to the read program and executes various arithmetic processes according to the procedure indicated by the program. Also, a plurality of addresses are assigned to the main memory 202 and the HDD 203, respectively, and in the arithmetic processing of the CPU 201, arithmetic processing using data is performed by specifying the address and accessing the stored data. It is possible. The main memory 202 stores, for example, a transmission source address and reading character data used for search, newly received mail, past received mail to be subjected to differential extraction, character data extracted by differential, and the like.

  Here, for example, the user operates the input device 204 of the portable terminal device in which the character input support device 200 of the present embodiment is incorporated, and the source address of the email for learning the extracted difference character string, and the learned character string An application for registering read characters for calling is started. Then, the CPU 201 interprets the input program and displays a registration screen 1 for registering a source address and a reading character as shown in FIG. 1 on the GUI screen according to the interpretation result. Then, the user performs registration by inputting a transmission source address and a reading character to the address input unit 11 and the reading character input unit 12 of the registration screen 1 via the input device 204. This triggers the new reception determination program.

  Subsequently, when a newly received mail is received from, for example, the input device 204 of the portable terminal in which the character input support device 200 of the present embodiment is incorporated, a program for determining a target mail for differential extraction processing in the new received mail acquisition unit 103 is provided. to start. Then, the CPU 201 interprets the input program and determines whether or not the newly received mail is a mail with a source address designated as a difference extraction target by the user. If the determination result is “mail with a source address designated by the user as a target for difference extraction”, the difference extraction unit 104 is instructed to start the difference extraction program.

  Subsequently, the CPU 201 interprets the activated difference extraction program, and searches the past received mail stored in the HDD 203 for a mail having the same transmission address as the transmission source address designated by the user as a difference extraction target. I do. If no e-mail is found by the search, it is determined that there is no e-mail that is the target of differential object extraction, and the process ends. If a mail is found, the mail is stored in the main memory 202, and the difference between the two mails in line units is extracted. If the amount of difference-extracted data is within a reference value determined that there is useful information, the difference-extracted character string data is registered in the main memory 202. The registered character string is registered as a character conversion candidate registered by the user.

  When the user uses the character string data of the difference registered in the main memory 202, the CPU 201 activates a mail application as shown in FIG. The character conversion program is started from the unit 106, and a character string obtained by extracting the difference from the registered mail is displayed on the display 205 as a character conversion candidate, thereby enabling character input.

  In this way, when the user registers the source address for extracting the difference and the character for calling the extracted difference, the conversion candidate for the registered character is registered each time the registered source address is received. Then, by inputting the read character registered at the time of creating the mail, it is possible to input a character string obtained by differential extraction as a conversion candidate. In addition, although the said structure was demonstrated as what is implement | achieved by the combination of general purpose hardware and software, of course, it may be implement | achieved by the same dedicated hardware.

<Process flow>
FIG. 7 is a flowchart showing an example of processing by the character input support device of the present invention, and a flow of processing for registering a difference character string extracted by comparing a newly received mail and a past received mail as a candidate for conversion of a reading character. Is shown. The steps shown below may be steps executed by each hardware configuration of the computer as described above, or may be processing steps that constitute a program for controlling the computer recorded on a medium. I do not care.

  First, when acquiring a newly received mail (step S1), the character input support device determines whether or not the received mail is from a transmission source address designated by the user as a difference extraction target (step S2). If it is not the source address designated by the user, the process ends. On the other hand, in the case of the transmission source address designated by the user, it is determined whether the mail to be searched remains among the mails received in the past at the transmission source address designated by the user (step S3). If there is no received mail to be searched, the process ends.

  If there are still received mails to be searched, past received mails are searched (step S4), and it is determined whether the received mail is the source address for which the user has specified differential extraction (step S5). If it is not the received mail of the transmission source address for which the difference extraction is designated, in order to search for the next past received mail, the process returns to step S3, and the remaining past received mail is determined. If the determination result in step S5 is the transmission source address for which the user has specified differential extraction, the two mails are compared for each row and the difference is extracted (step S6).

  Then, it is determined whether or not the extracted difference amount is larger than a predetermined reference value (step S7). If the extracted difference amount is larger than the reference value, it is determined that the compared mail is a mail in a different format, The process returns to step S3 without registering the character string, and is compared with the next received mail. If the extracted difference amount is not greater than the reference value, it is determined that the email is in a fixed format to which the user has added the necessary information, and the extracted difference character string is used as a candidate character conversion candidate designated by the user. Register (step S8).

  FIG. 8 is a flowchart showing another example of processing by the character input support device of the present invention, and shows a flow of processing when a character string registered by extracting a difference from received mail is called to create a mail. . The steps shown below may be steps executed by each hardware configuration of the computer as described above, or may be processing steps that constitute a program for controlling the computer recorded on a medium. I do not care.

  First, the user inputs a reading character for calling a character string registered as a conversion candidate to the character input support device (step S11). This read character is a character string registered by the user on the registration screen 1 in FIG. In the character input support device, the character string in the first line of the mail registered by the difference extraction is displayed as a conversion candidate (step S12). The difference-extracted first line character string includes important information in the mail such as the store name. The displayed conversion candidates increase every time the user receives an e-mail with a source address designated for differential extraction, and different character strings obtained from the same source address are input as conversion candidates for one reading character. become able to. The user inputs characters by selecting necessary candidates from these conversion candidates (step S13).

  Next, for the conversion candidate selected by the user, the character strings in the second and subsequent lines registered by extracting the difference are displayed as cooperative prediction candidates (step S14). The character strings in the second and subsequent lines extracted by difference include information such as URLs, telephone numbers, and addresses subordinate to the character strings in the first line including important information such as point names. The user can input characters of the cooperative prediction candidate subordinate to the desired conversion candidate by selecting these cooperative prediction candidates as necessary (step S15).

<Other examples>
FIG. 9 is a diagram illustrating another example of the process of selecting a prediction candidate on the mail creation screen of the character input support device. The character input support device can display selectable conversion candidates that partially match even when an arbitrary character or character string other than the read character registered by the user on the registration screen of FIG. 1 is input.
For example, in FIG. 9A, it is assumed that an arbitrary character string not registered as a read character is input to the mail input unit 21 of the mail creation screen 2. In this example, it is assumed that a character string “Makuhari” is input. Although the prediction candidate is displayed in the prediction candidate window 22, this display is a general prediction candidate based on the normal dictionary.

  The user can select an arbitrary conversion candidate from the screen of FIG. Here, it is assumed that “Makuhari” is selected (FIG. 9B). The mail creation screen 2 is provided with a search button 24, a conversion button 25, a Kana-English conversion button 26, and the like. When the user operates the search button 24, the character input support device searches a user dictionary registered in advance using “Makuhari” selected in the prediction candidate window 22 as a search keyword, and selects conversion candidates. Extracted and displayed in the prediction candidate window 22 (FIG. 9C). As described above, the user dictionary to be searched here is a dictionary created by extracting the difference from the mail having the same source address, and the character or the character that is completely or partially matched with the input character or the character string of the mail input unit 21. Displays a character string as a conversion candidate. Therefore, in this example, a store name including the character string “Makuhari” is displayed in the prediction candidate window 22 as a search result.

When the user selects and confirms an arbitrary store name from the prediction display window 22 of Fig. 9C, the determined store name is input to the mail input unit 21 (Fig. 9D). If there is a cooperative conversion candidate, the candidate is displayed in the prediction candidate window 22. The user can select an arbitrary cooperative conversion candidate from the displayed cooperative conversion candidates, and if this is confirmed, the mail input unit 21 is selected. It is possible to easily input a cooperative conversion candidate such as a URL following the store name input in the.
As described above, at least partially matching conversion candidate characters or character strings can be displayed in the prediction candidate window 22 so as to be selectable with the character string input to the mail input unit 21 as a search target. For example, if store names are written in the first line of character strings extracted from restaurant information, many of them contain place names such as “Makuhari branch”, so narrow down to conversion candidates that contain the same place names. It is also possible to perform candidate selection by performing.

  As described above, every time the user receives a mail from the same address as the transmission source address for which the user designates the difference extraction, the store name, the subordinate URL, the telephone number, and the like are useful. Only the information can be registered as conversion candidates corresponding to the read characters registered by the user. Then, when the user inputs a reading character, it is possible to input a conversion candidate character registered in units of lines, and it is easy to create a sentence.

  In the conversion candidate learning process from a general received mail, the conversion candidate is learned in units of independent words using morphological analysis. Therefore, a character string such as an automatic delivery mail in which useful information is configured in a line unit is used as information. It becomes a word candidate worthless. On the other hand, in the embodiment according to the present invention, the character string can be registered in units of one line without breaking its meaning, and the user does not needlessly learn unnecessary character strings in the standard format. Therefore, it is possible to efficiently perform character conversion without increasing registration of unnecessary conversion candidates.

DESCRIPTION OF SYMBOLS 1 ... Registration screen, 2 ... Mail creation screen, 11 ... Address input part, 12 ... Character input part, 21 ... Mail input part, 22 ... Prediction candidate window, 23 ... Line feed, 24 ... Search button, 25 ... Conversion button, 26 ... Kana-English conversion button, 100 ... Character input support device, 101 ... Past mail holding section, 102 ... Character input section, 103 ... New received mail acquisition section, 104 ... Difference extraction section, 105 ... Data registration section, 106 ... Character input Support unit, 200 ... character input support device, 201 ... CPU, 202 ... main memory, 203 ... HDD, 204 ... input device, 205 ... display, 206 ... system bus.

Claims (4)

A character input support device having character input means for inputting characters and a character input support unit for supporting character input by the character input means,
A data registration unit for registering sender identification information and keywords used for search;
A past mail holding unit that acquires and holds received mail;
The newly received mail is acquired, and based on the sender identification information registered in the search data registration unit, the sender of the newly received mail matches the sender of the mail stored in the mail storage means. And a difference extraction unit that extracts a difference between the newly received mail and the newly received mail,
The data registration unit registers the difference extracted by the difference extraction unit in association with the keyword,
The character input support unit supports character input by presenting a selectable difference registered in the data registration unit in association with the input keyword when a keyword is input by the character input unit. A character input support device. In the character input assistance device according to claim 1,
The difference extraction unit extracts a difference by comparing the mail body for each line when comparing the mail with the same sender.
The data registration unit registers the character string of the first line of the mail body as a conversion candidate from the differences extracted by comparing each line,
The character input support device, wherein when the keyword is input, the character input support device supports the character input by presenting the conversion candidates based on the character string in the first line so as to be selectable. The character input support device according to claim 2,
The data registration unit registers, as a second conversion candidate, a character string after the second line of the mail body from the difference extracted by comparing the lines.
The character input support unit, when a conversion candidate based on the character string in the first line presented to be selectable is selected, presents the character input support unit as a second conversion candidate related to the selected conversion candidate. Character input support device characterized by this. In the character input assistance device according to any one of claims 1 to 3,
The character input support unit searches for a difference registered in the data registration unit based on an arbitrary character or character string input to a character input unit, and at least partially matches a character or character string input Alternatively, a character input support device that supports a character input by presenting a difference having a character string in a selectable manner.

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