JP2013211703A - Input support program and input support device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an input support program and an input support device that implement an efficient key input depending on a user.SOLUTION: When an application for arrangement setting based on initial learning is selected to be started, a control section 21 of a tablet terminal 20 acquires tap positions and input conditions of keys pressed by a user according to example sentences, and creates and records the user's individual recognition areas. When a software keyboard 500 is used with another application, on detecting a tap, the control section 21 of the tablet terminal 20 identifies the pressed key by using individual recognition areas corresponding to the relevant input condition or, if there are no individual recognition areas corresponding to the input condition, using general recognition areas.

Description

  The present invention relates to an input support program and an input support apparatus for supporting key input in a computer terminal.

  In a computer terminal such as a tablet terminal, a software keyboard has been proposed in which a keyboard is displayed on a screen, and a cursor is moved on the screen to select and input characters (see, for example, Patent Document 1). The technique described in this document has a function of displaying a software keyboard on a display screen and inputting information by touching the screen. Further, this document describes that the display of each key is changed based on the variation in the operation position of the user.

JP 2011-150489 A (first page, FIG. 1)

  However, depending on the user, the input tendency such as the touch position may differ depending on the input situation and the use environment. In this case, if a software keyboard having the same shape is always displayed, erroneous input or operability deterioration may occur.

  The present invention has been made to solve the above-described problems, and provides an input support program and an input support apparatus for realizing efficient key input according to a user.

  In order to solve the above-described problems, the invention described in claim 1 includes a display unit, an input unit, a key arrangement storage unit that stores recognition coordinate information of each key constituting the software keyboard, and the input unit. In a computer terminal comprising control means for outputting input information to the display means, a program for supporting key input, the control means, means for outputting the software keyboard to the display means, Identifying means for identifying an original key to be selected on the software keyboard, identifying an actual touch position touched with respect to the original key, and recognition coordinates recorded in the touch position and the key arrangement storage means The original key recognition coordinate information recorded in the key arrangement storage means is updated according to the result of comparison with the information. And summarized in that to function as update means that.

  According to a second aspect of the present invention, in the input support program according to the first aspect, the key arrangement storage means stores recognition coordinate information of the key in association with key input status information, and the control And means for acquiring key input status information together with the touch position, and means for identifying the key recognition coordinate information corresponding to the acquired input status information in the key arrangement storage means. The gist.

  The invention according to claim 3 is the input support program according to claim 1 or 2, wherein the computer terminal further includes example sentence storage means in which an example sentence used for specifying key recognition coordinate information is stored, The control means further displays an example sentence stored in the example sentence storage means and further functions as a means for prompting a key input for the example sentence, and the specifying means originally selects a key corresponding to a character constituting the example sentence. The main point is to specify the key.

  According to a fourth aspect of the present invention, in the input support program according to any one of the first to third aspects, when the specifying unit detects a corrected character, the key corresponding to the corrected character is used. The key point is that the touch position touched when the uncorrected character is input is specified as the actual touch.

  According to a fifth aspect of the present invention, in the input support program according to any one of the first to fourth aspects, the specifying unit predicts a word according to an input character, and converts the predicted word into a character constituting the predicted word. The gist is to identify the corresponding key as the original key.

  According to a sixth aspect of the present invention, in the input support program according to the fifth aspect, the computer terminal further includes dictionary storage means for storing input word candidates, and the specifying means is configured to input character strings. The gist is to predict the word by collating with the character string of the word registered in the dictionary.

  According to a seventh aspect of the present invention, in the input support program according to the fifth aspect, for the input word, the computer terminal sets a character trajectory pattern at the time of input according to a key arrangement of characters constituting the word. Character trajectory pattern storage means storing the registered dictionary is further provided, and the specifying means is configured to collate the acquired touch position input trajectory pattern with the character trajectory pattern recorded in the character trajectory pattern storage means. The gist is to predict words.

  According to an eighth aspect of the present invention, in the input support program according to the fifth aspect, the computer terminal further comprises reference word storage means for storing a reference word, and the specifying means is stored in the reference word storage means. The gist is to specify the key of each character constituting the reference word as a key each time it is detected that the input reference word is input.

  A ninth aspect of the present invention provides the input support program according to any one of the fifth to eighth aspects, wherein the control means predicts a part of speech of an input word according to a grammatical rule at the time of writing a sentence. Further functioning as a rule determining unit, the specifying unit acquires part-of-speech information of an input word from the grammar rule determining unit according to a character input situation, and specifies the word using the part-of-speech information. Is the gist.

  According to a tenth aspect of the present invention, in the input support program according to any one of the first to ninth aspects, the key arrangement storage unit stores recognition coordinate information of each key in association with a user identifier. The control means further identifies the user identifier of the user and further functions as means for recording the recognized coordinate information of each key in the key arrangement storage means in association with the user identifier. To do.

  According to an eleventh aspect of the present invention, in the input support program according to any one of the first to tenth aspects, the means for identifying the recognition coordinate information of the user's key to be used, and the acquired touch position and the recognition The gist is to calculate a deviation amount from the coordinate information, and to further function as means for executing the attention mode process when the deviation amount exceeds a determination reference value for determining the same user.

  According to a twelfth aspect of the present invention, there is provided display means, input means, key arrangement storage means for storing recognition coordinate information of each key constituting the software keyboard, and information input in the input means to the display means. An input support apparatus including a control means for outputting, wherein the control means specifies a means for outputting the software keyboard to the display means, and an original key to be selected on the software keyboard, and uses the original key as the original key. In accordance with the result of comparing the specifying means for specifying the actual touch position touched with the touch position and the recognition coordinate information recorded in the key arrangement storage means, it is recorded in the key arrangement storage means. The gist of the present invention is that it comprises updating means for updating the recognition coordinate information of the original key.

(Function)
According to the invention described in claim 1 or 12, the control means outputs the software keyboard to the display means. The control means specifies an original key to be selected on the software keyboard and specifies an actual touch position touched with respect to the original key. The control unit updates the recognition coordinate information of the original key recorded in the key arrangement storage unit according to the result of comparing the touch position with the recognition coordinate information recorded in the key arrangement storage unit. Thus, since the key recognition area is set based on the actual touch position at the time of key input, it is possible to realize efficient key input in consideration of the key input tendency such as the user's habit. Here, as the key recognition coordinate information, the coordinates (coordinate group) for specifying the center position of the key area, the shape of the key area, the key range, and the like can be used.

  According to the second aspect of the present invention, the control means acquires key input status information together with the touch position. The control means specifies key recognition coordinate information corresponding to the acquired input status information in the key arrangement storage means. Depending on the input situation, the user's key input tendency may differ. Therefore, the key recognition area can be set in consideration of the tendency of the key input according to the input situation. And even if it is a case where the recognition area | region of a key is changed depending on an input condition and the same position is touched, a different key input according to an input condition is realizable.

  According to the third aspect of the present invention, the control means displays the example sentence stored in the example sentence storage means and prompts key input for the example sentence. A control means specifies the key corresponding to the character which comprises an example sentence as an original key. Thus, it is possible to identify the key input tendency of the user based on the touch position of the key actually input to the example sentence, and to set the key recognition area in consideration of this tendency.

  According to the invention described in claim 4, when the control means detects the corrected character, the key corresponding to the corrected character is identified as the original key, and the character before the correction is input The touch position touched is specified as an actual touch. Accordingly, it is possible to identify a tendency of key input in a user's erroneous input for each correction based on the touch position of the character before correction, and set a key recognition area in consideration of this tendency.

  According to the fifth aspect of the present invention, the control means predicts a word according to the input character, and specifies the key corresponding to the character constituting the predicted word as the original key. Thereby, when the predicted character is different from the input character, it is possible to identify an erroneous input by the user based on the actual touch position and the predicted word. Then, it is possible to identify a key input tendency in the case of a user's erroneous input and set a key recognition area in consideration of this tendency.

  According to the invention described in claim 6, the control means predicts the word by collating the input character string with the character string of the word registered in the dictionary. As a result, it is possible to identify the key of the character that the user intends to input from the words registered in the dictionary and set the key recognition area in consideration of the tendency of the key input.

  According to the seventh aspect of the invention, the control means predicts the word by collating the acquired input locus pattern of the touch position with the character locus pattern recorded in the character locus pattern storage means. As a result, it is possible to identify the key of the character that the user intends to input from the character trajectory pattern and set the key recognition area in consideration of the tendency of the key input.

  According to the invention described in claim 8, each time the control means detects that the reference word stored in the reference word storage means is input, the key of each character constituting the reference word is used as the original key. Identify. Thus, each time a reference word is detected, the key recognition coordinate information can be updated to identify the user's key input tendency, and the key recognition area can be set in consideration of this tendency.

  According to the ninth aspect of the present invention, the control means predicts the part of speech of the input word according to the grammatical rules at the time of writing. The control means acquires part-of-speech information of the word input from the grammar rule determination means according to the character input situation, and specifies the word using the part-of-speech information. Thereby, a word can be narrowed down by the part of speech of an input word using a grammar rule. Therefore, the original word can be specified more accurately by this narrowing down.

  According to the invention described in claim 10, the control means specifies the user identifier of the user, and records the recognition coordinate information of each key in the key arrangement storage means in association with the user identifier. Thereby, since the key recognition coordinate information can be stored according to each user, the key recognition area can be set in consideration of the input tendency for each user.

  According to the invention described in claim 11, the control means specifies the recognition coordinate information of the user's key to be used, calculates the shift amount between the acquired touch position and the recognition coordinate information, and the shift amount is the same. When the determination reference value for determining the user is exceeded, the attention mode process is executed. Since the recognized coordinate information reflects the input tendency of the user, when the difference from the recognized coordinate information is large, it can be determined that the recognized coordinate information is used by others. In this case, attention mode processing different from the normal usage mode is executed. Thereby, for example, the update of the recognition coordinate information can be stopped, the use can be restricted, and a warning can be issued.

  ADVANTAGE OF THE INVENTION According to this invention, the input assistance program and input assistance apparatus for implement | achieving efficient key input according to a user can be provided.

Explanatory drawing of the functional block of the input assistance apparatus of 1st Embodiment. Explanatory drawing of the process sequence of the arrangement | positioning setting process by the initial learning of 1st Embodiment. Explanatory drawing of the process sequence of the arrangement | positioning setting process by correction input of 2nd Embodiment. Explanatory drawing of the process sequence of the arrangement | positioning setting process by the input prediction of 3rd Embodiment. Explanatory drawing of the process sequence of the creation process of the character locus pattern dictionary of 4th Embodiment, and the arrangement | positioning setting process by locus | trajectory input.

(First embodiment)
Hereinafter, an embodiment of an input support apparatus embodying the present invention will be described with reference to FIGS. In the present embodiment, as illustrated in FIG. 1, a case where input is performed on the tablet terminal 20 will be described. Further, in the present embodiment, it is assumed that an English character corresponding to each key is input in character input.

  The tablet terminal 20 is a computer terminal used by a user, and is used for outputting and inputting information by executing various applications. In the present embodiment, the tablet terminal 20 includes a control unit 21, a word dictionary storage unit 22, a key arrangement storage unit 23, an example sentence storage unit 24, and a touch panel display 30.

  The touch panel display 30 functions as a display unit and an input unit. Specifically, while outputting information on the panel, various operations (pointing, key input, etc.) can be performed based on the display contents of the tapped screen position by tapping (tapping) the surface of the panel. . In the present embodiment, a software keyboard 500 is displayed on the touch panel display 30. The software keyboard 500 includes keys for performing operations such as character input, deletion, and cursor movement.

  The control unit 21 includes control means (CPU, RAM, ROM, etc.), and performs processing described later (display control stage, touch control stage, application execution stage, keyboard control stage, key arrangement learning stage, etc.). . The control unit 21 functions as the display control unit 211, the touch control unit 212, the application execution unit 213, and the keyboard control unit 214, and also functions as the key arrangement learning unit 215 by executing the input support program.

The display control unit 211 executes processing for controlling display on the touch panel display 30.
The touch control unit 212 executes processing for detecting a tap on the touch panel display 30. In this case, the touch control unit 212 specifies a tap position (a touch position including coordinates actually touched by the tap).

  The application execution means 213 manages the activation, execution, and the like of applications (for example, sentence creation, spreadsheet, browser, etc.) stored in the tablet terminal 20. In this embodiment, a key input screen that is a key input target is output to the touch panel display 30 by executing this application.

  The keyboard control unit 214 executes processing for outputting the software keyboard 500 to the touch panel display 30. Therefore, the keyboard control unit 214 stores key display data including key arrangement information. The key display data is data for displaying the keys arranged in a predetermined keyboard layout on the touch panel display 30. In this embodiment, each key of this display data is displayed corresponding to the general recognition area. The general recognition area is a default key arrangement area (coordinate information of an area for recognizing each key) stored in advance in the key arrangement storage unit 23.

  Furthermore, the keyboard control means 214 specifies the input key based on the tap position. In the present embodiment, the keyboard control unit 214 specifies the selected key based on the relative coordinates on the software keyboard 500. Further, the keyboard control means 214 includes an input memory. In this input memory, contents (operations and characters) input using the software keyboard 500 are temporarily stored.

  The key arrangement learning unit 215 functions as a specifying unit and an updating unit, and executes a process of learning each key area (individual recognition area) constituting the software keyboard 500 according to a user input. This individual recognition area is an arrangement area of each key specified according to the user. The key arrangement learning unit 215 acquires the tap position from the touch control unit 212. Furthermore, the key arrangement learning means 215 includes a time zone (tap time zone) in which touch input is performed, the number of taps in a predetermined time (tap speed), an elapsed time from the start of input of a word initial, Characters etc. are specified as the input situation. The key arrangement learning unit 215 acquires key arrangement information on the software keyboard 500 from the keyboard control unit 214. The key arrangement learning unit 215 includes a tap information memory. This tap information memory temporarily stores the tap position in association with the input status.

  The key arrangement learning unit 215 stores data related to the correction target reference range. The correction target reference range is a reference range for determining whether or not the key position needs to be corrected. For example, a range about half of one key is set. The key arrangement learning unit 215 uses this tap position for updating the individual recognition area only when the tap position is within the correction target reference range with respect to the general recognition area.

  Furthermore, the control unit 21 functions as user authentication means for authenticating the user. For this reason, the control unit 21 stores user information (user ID, password) for authenticating the user of the tablet terminal 20.

  In addition, the control unit 21 includes a delimiter storage unit that stores delimiters. In this delimiter storage unit, for example, data related to delimiters such as spaces, commas, and periods is stored.

The word dictionary storage unit 22 functions as a dictionary storage unit. The word dictionary storage unit 22 stores dictionary data in which commonly used words (headwords) are spelled out.
The key arrangement storage unit 23 functions as a key arrangement storage unit. The key arrangement storage unit 23 stores a recognition area for each key. In the present embodiment, a general recognition area and an individual recognition area are stored. The individual recognition area is a recognition area associated with the user ID according to the user. This individual recognition area is further associated with the input status. This individual recognition area is specified and recorded by the arrangement setting process according to the tap position. In this embodiment, an example sentence is input as initial learning, and is recorded by an arrangement setting process performed based on the acquired tap position.

  The example sentence storage unit 24 functions as example sentence storage means. The example sentence storage unit 24 stores data relating to example sentences used for specifying the individual recognition area. In this example sentence, a sequence of arbitrary characters, a sequence of a plurality of words, a sentence composed of a plurality of words, or the like can be used.

(Placement setting process by initial learning)
Next, an arrangement setting process by initial learning in the tablet terminal 20 will be described with reference to FIG. Here, when the tablet terminal 20 is used, the control unit 21 first executes a user specifying process. Specifically, the control unit 21 outputs a user authentication screen to the touch panel display 30. This user authentication screen is provided with an input field for inputting a user ID and a password. Here, when the user ID and password are input, the control unit 21 collates with the stored user ID and password. When the collation is completed, the control unit 21 causes the display control unit 211 to display an application selection screen on the touch panel display 30. On this application selection screen, icons of various applications that can be activated are displayed, and each application can be activated by selecting each icon.

  Here, the user selects an icon of the initial learning application on the selection screen of the touch panel display 30. Thereby, the control part 21 of the tablet terminal 20 performs the starting process of an initial learning application. In this case, the application execution unit 213 of the control unit 21 outputs the software keyboard 500 and the initial arrangement setting screen (key input screen) to the touch panel display 30. Specifically, the application execution unit 213 of the control unit 21 displays an initial arrangement setting screen on the touch panel display 30 via the display control unit 211. Further, the application execution unit 213 instructs the keyboard control unit 214 to display the software keyboard 500. The keyboard control unit 214 displays the stored key display data on the touch panel display 30 via the display control unit 211.

  The initial arrangement setting screen (key input screen) includes an input content display area and an example sentence display area. In the input content display area, characters and the like input using the software keyboard 500 are displayed. In the example sentence display area, headwords (character strings) extracted from the example sentence storage unit 24 are displayed.

  And the control part 21 of the tablet terminal 20 performs the character input tap process of an example sentence (step S1-1). Specifically, the application execution unit 213 of the control unit 21 extracts one example sentence stored in the example sentence storage unit 24. Then, the application execution unit 213 displays the example sentence in the example sentence display area of the initial arrangement setting screen via the display control unit 211.

  Then, the user inputs characters of the example sentence displayed in the example sentence display area by tapping the keys of the software keyboard 500. Here, when the touch control unit 212 of the control unit 21 detects a tap on the software keyboard 500, this touch position is supplied to the keyboard control unit 214 and the key arrangement learning unit 215. The key arrangement learning means 215 specifies the tap time zone in the system timer and calculates the tap speed. Furthermore, the key arrangement learning means 215 calculates the elapsed time from the start of the example sentence input.

  Also, the keyboard control unit 214 compares the tap position with the general recognition area, specifies the character corresponding to the selected key, and temporarily stores it in the input memory. The keyboard control unit 214 displays the temporarily stored characters in the input content display area of the initial arrangement setting screen via the display control unit 211. Further, the keyboard control unit 214 supplies the temporarily stored characters to the key arrangement learning unit 215.

  Next, the control unit 21 of the tablet terminal 20 executes a tap position and input state recording process (step S1-2). Specifically, the key arrangement learning means 215 of the control unit 21 stores the acquired input state in the tap information memory in association with the acquired tap position and character.

  The application execution unit 213 of the control unit 21 executes the processes of steps S1-1 and S1-2 using all the example sentences stored in the example sentence storage unit 24. When the processing for all the example sentences is completed, the application execution unit 213 closes the software keyboard 500 and the initial arrangement setting screen.

  Next, the control unit 21 of the tablet terminal 20 performs a comparison process between the tap position and the original key position (step S1-3). Specifically, the key arrangement learning unit 215 of the control unit 21 acquires the tap position from the tap information memory and also acquires the general recognition area of the key of the example sentence character from the key arrangement storage unit 23. Then, the key arrangement learning means 215 compares the general recognition area of each key with the tap position.

  Next, the control part 21 of the tablet terminal 20 performs the determination process about whether a tap position is exact (step S1-4). Specifically, when the tap position is included in the general recognition area, the tap position is determined to be accurate. In this case (in the case of “YES” in step S1-4), the control unit 21 of the tablet terminal 20 ends the arrangement setting process by the initial learning.

On the other hand, when it is determined that the tap position is not included in the general recognition region and is not accurate (in the case of “NO” in step S1-4), the control unit 21 of the tablet terminal 20 associates with the input status. The original key position correction process is executed (step S1-5). Specifically, the key arrangement learning means 215 of the control unit 21 specifies an individual recognition area for the example sentence character key based on the tap position. For example, an area including the tap position with respect to the general recognition area is specified as an individual recognition area. When the tap position is away from the correction target reference range with respect to the general recognition area, the key arrangement learning unit 215 does not perform the key position correction process using this input. The key arrangement learning unit 215 stores the individual recognition area in the key arrangement storage unit 23 in association with the user ID and the input status.
Thus, the arrangement setting process by the initial learning is completed.

  Thereafter, when the software keyboard 500 is used in another application, the control unit 21 of the tablet terminal 20 uses the recognition area stored in the key arrangement storage unit 23. Specifically, the touch control unit 212 supplies the tap position to the keyboard control unit 214. The keyboard control means 214 specifies the input situation (preceding character, character speed, etc.) at this time, and specifies the input key using the individual recognition area corresponding to this input situation. In addition, when the individual recognition area corresponding to the input status at this time is not recorded, the keyboard control unit 214 specifies the input key using the general recognition area. Then, the keyboard control unit 214 supplies input characters based on the identified key to the application execution unit 213. The application execution unit 213 displays the acquired input characters on the touch panel display 30 via the display control unit 211.

According to the present embodiment, the following effects can be obtained.
(1) In the present embodiment, when the control unit 21 of the tablet terminal 20 detects a tap, the control unit 21 uses an individual recognition area corresponding to the input situation at this time, or an individual recognition area corresponding to the input situation exists. If not, the input key is specified using the general recognition area. As a result, the key selected by the user can be specified using the key recognition range according to the input status, and thus efficient key input can be performed according to the user. In this case, even if it is the same coordinate on the touch panel display 30, the key specified according to an input condition will differ, and a key can be specified in consideration of an input condition.

  (2) In this embodiment, the control part 21 of the tablet terminal 20 performs the tap process of the character input of an example sentence, and performs the recording process of a tap position and an input condition (step S1-1, S1-2). When the control unit 21 of the tablet terminal 20 determines that the tap position is not accurate (in the case of “NO” in step S1-4), the control unit 21 executes the original key position correction process in association with the input situation (step S1-4). S1-5). Thereby, the character of the example sentence can be specified as the original key, and the recognition range of the key can be set by using the actual tap position for the key.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIG. In the first embodiment, the arrangement setting is performed by initial learning. However, in the second embodiment, the arrangement setting is performed by using the correction of the user. In the present embodiment, when an erroneous input is an adjacent key, the recognition area of this key is adjusted. In the second embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  Also in the present embodiment, as in the above-described embodiment, when the tablet terminal 20 is used, the control unit 21 temporarily stores the collated user ID by executing a user specifying process.

  When an activation instruction for a desired application is given on the selection screen of the touch panel display 30, the control unit 21 of the tablet terminal 20 executes an activation process for the instructed application. Here, it is assumed that an application for inputting characters (for example, a document creation application) is activated.

  In this case, the application execution unit 213 of the control unit 21 outputs a display screen (key input screen) to the touch panel display 30. When performing character input, the keyboard control unit 214 of the control unit 21 displays the software keyboard 500 on the touch panel display 30 via the display control unit 211.

  And the control part 21 of the tablet terminal 20 performs a character input tap process (step S2-1). Specifically, the user inputs characters using the keys of the software keyboard 500 on the display screen. Here, the touch control unit 212 of the control unit 21 supplies the tap position to the keyboard control unit 214 and the key arrangement learning unit 215 when a tap is detected on the software keyboard 500. Then, the key arrangement learning means 215 specifies the tap speed according to the tap time zone, the character input immediately before this key input (preceding character), or the number of taps within a predetermined time as the input status. .

  The keyboard control unit 214 identifies a recognition area according to the input situation, and identifies the character of the key selected by the user from the recognition area and the tap coordinates. Then, the keyboard control unit 214 supplies the specified key character to the application execution unit 213 and the key arrangement learning unit 215.

  The application execution unit 213 specifies the display position of the specified character and supplies it to the display control unit 211 and the key arrangement learning unit 215. The display control unit 211 displays the specified character at the display position on the touch panel display 30 in accordance with an instruction from the application execution unit 213. The key layout learning unit 215 acquires the deleted character, the corrected character inserted instead of the deleted character, and the replaced character position from the application execution unit 213.

  Next, the control part 21 of the tablet terminal 20 performs the recording process of an input condition and a tap position (coordinate) (step S2-2). Specifically, the key arrangement learning unit 215 of the control unit 21 stores the tap position and input status (touch speed, preceding character, etc.) in the tap information memory in association with the input character and display position.

  Next, the control part 21 of the tablet terminal 20 performs the determination process about whether there was correction (step S2-3). Specifically, the key layout learning unit 215 of the control unit 21 determines that there is a correction when the deleted character is replaced with a corrected character. Note that the key arrangement learning unit 215 determines that there is no correction when the character is not deleted or when it is determined that the corrected character is not input. In this case (in the case of “NO” in step S2-3), the control unit 21 of the tablet terminal 20 repeats the processes after step S2-1.

  If it is determined that there has been a correction (in the case of “YES” in step S2-3), the control unit 21 of the tablet terminal 20 executes a process for specifying the corrected character (step S2-4). Specifically, the key arrangement learning unit 215 of the control unit 21 specifies a newly input corrected character instead of the deleted character.

  Next, the control part 21 of the tablet terminal 20 performs the key area | region setting process corresponding to a tap position (step S2-5). Specifically, first, the key arrangement learning unit 215 of the control unit 21 determines whether or not the deleted character key and the corrected character key are adjacent to each other using the key arrangement information. Here, when the key of the deleted character and the key of the corrected character are adjacent to each other, the key arrangement learning unit 215 determines that the tap position of the key used for the deleted character is in the recognition area of the key used for the corrected character. Change the individual recognition area of the key so that it is included. In this case, the size of the individual recognition area is changed so that the identified tap position is included in the individual recognition area with respect to the stored individual recognition area. Then, the key arrangement learning unit 215 stores the changed individual recognition area of the key in the key arrangement storage unit 23. In this case, the key arrangement learning means 215 records the changed individual recognition area of the key in association with the input situation and user ID associated with the deleted character. If the deleted character key and the corrected character key are not adjacent to each other, the key position correction processing is not performed.

According to this embodiment, in addition to the effect (1), the following effect can be obtained.
(3) In the present embodiment, when the input character is corrected (in the case of “YES” in step S2-3), the control unit 21 of the tablet terminal 20 performs a key area setting process corresponding to the tap position. Execute (Step S2-5). In this case, when the key of the deleted character before correction and the key of the corrected character after correction are adjacent to each other, the control unit 21 determines that the tap position of the correction character is the individual key after correction. Change to be included in the recognition area. As a result, the key can be originally specified by the character corrected by the user, so the key recognition range is set by specifying the relationship between the key and the tap position and taking into account the tendency of erroneous input by the user. can do.

(Third embodiment)
Next, a third embodiment of the present invention will be described with reference to FIG. In the second embodiment, the arrangement setting is performed according to the correction of the user. In the third embodiment, the arrangement setting is performed by correcting using a word predicted from the input character. Moreover, in this embodiment, about the part similar to the said embodiment, detailed description is abbreviate | omitted using the same code | symbol.

  In the present embodiment, as in the second embodiment, the control unit 21 of the tablet terminal 20 temporarily stores the collated user ID, then executes an application activation process, and displays a display screen including the software keyboard 500. Output to the touch panel display 30.

  And the control part 21 of the tablet terminal 20 performs a character input tap process (step S3-1). Specifically, the touch control means 212 of the control unit 21 supplies the tap coordinates to the keyboard control means 214 and the key arrangement learning means 215 when a tap is detected on the software keyboard 500 as in step S2-1. To do. The keyboard control unit 214 specifies a character corresponding to the selected key, temporarily stores it in the input memory, and supplies the character to the key arrangement learning unit 215. The key arrangement learning means 215 calculates the tap time zone, the preceding character, and the touch speed.

  Next, the control part 21 of the tablet terminal 20 performs the recording process of an input condition and a tap position (coordinate) (step S3-2). Specifically, the key arrangement learning unit 215 of the control unit 21 stores the tap position, the input status, and the display position in the tap information memory in association with the input character, similarly to step S2-2.

Then, the processes in steps S3-1 and S3-2 are repeated until a delimiter is input.
And when the input of a delimiter is detected, the control part 21 of the tablet terminal 20 performs the prediction process of a character string using a word dictionary (step S3-3). Specifically, the key layout learning unit 215 of the control unit 21 searches the word dictionary storage unit 22 for a headword consisting of characters common to a series of input character groups input from the start of input to the delimiter character. In this case, for example, even a single character difference is searched as a headword consisting of common characters. Then, the key layout learning unit 215 predicts the original character string based on the extracted headword.

  Next, the control part 21 of the tablet terminal 20 performs the determination process about whether it is an incorrect input (step S3-4). Specifically, the key layout learning means 215 of the control unit 21 determines that there is no erroneous input when a headword that matches the input character group is extracted. Further, it is determined that there is no erroneous input even when a headword common to the input character group cannot be extracted. Further, even if the mismatched characters in the headword and the input character group are not adjacent in the key layout on the software keyboard 500, it is determined that there is no erroneous input. In these cases (in the case of “NO” in step S3-4), the processing after step S3-1 is executed.

  On the other hand, when the key arrangement of the mismatched characters in the headword and the input character group is adjacent, it is determined that the input is incorrect. In this case (in the case of “YES” in step S3-4), the control unit 21 of the tablet terminal 20 executes a correct character specifying process (step S3-5). Specifically, the key layout learning unit 215 of the control unit 21 specifies a mismatched character in the headword as a correct character.

  Next, the control part 21 of the tablet terminal 20 performs the key area | region setting process corresponding to a tap position (step S3-6). Specifically, the key layout learning unit 215 of the control unit 21 acquires the tap position and input status of the input character from the tap information memory. The key arrangement learning unit 215 changes the individual recognition area of the key identified as the correct character so as to include the tap position of the input character, and stores it in the key arrangement storage unit 23. In this case, the key arrangement learning unit 215 records the input state of the input character and the user ID in association with each other in the individual recognition area of this key.

According to this embodiment, in addition to the effect (1), the following effect can be obtained.
(4) In the above embodiment, the key arrangement of the mismatched characters in the headword and the input character group are adjacent to each other, and if it is determined that the input is incorrect (in the case of “YES” in step S3-4), the tablet terminal The control unit 20 performs a correct character identification process (step S3-5) and a key area setting process (step S3-6) corresponding to the tap position. Thereby, since the key can be originally specified using the word registered in the word dictionary storage unit 22, the recognition range of the key can be set in consideration of the tendency of erroneous input by the user.

(Fourth embodiment)
Next, a fourth embodiment embodying the present invention will be described with reference to FIG. In the third embodiment, correction is performed using words registered in the dictionary. However, in the fourth embodiment, the arrangement setting is performed by correcting using registered character trajectory patterns. Moreover, in this embodiment, about the part similar to the said embodiment, detailed description is abbreviate | omitted using the same code | symbol.

  Further, the control unit 21 includes a character locus pattern dictionary storage unit as a character locus pattern storage unit. The character trajectory pattern dictionary storage unit stores a character trajectory pattern dictionary composed of character trajectory patterns of headwords. This character trajectory pattern is an input trajectory on the key layout when inputting a character string constituting each reference word. The character trajectory pattern includes data related to information for specifying a relative arrangement on the software keyboard 500. As the relative arrangement information, for example, on the software keyboard 500, the coordinates of the first tap position of the locus, a predetermined range from these coordinates, and the like are used. With this relative arrangement, the original word can be specified even when there are a plurality of words whose shape of the character locus pattern is approximate.

  Further, the control unit 21 stores a pattern determination allowable range (relative coordinate amount) for determining that the character trajectory pattern matches the input trajectory pattern. This allowable range for pattern determination includes the degree of approximation of the pattern position and the degree of approximation of the locus pattern shape.

(Character locus pattern dictionary creation process)
Next, a process for creating the character locus pattern dictionary will be described.
First, the control part 21 of the tablet terminal 20 performs the identification process of the constituent character of a word (step S4-1). Specifically, the key layout learning means 215 of the control unit 21 specifies each character (constituent character) constituting the headword recorded in the word dictionary storage unit 22.

  Next, the control part 21 of the tablet terminal 20 performs the specific process of arrangement | positioning on a keyboard about a structural character (step S4-2). Specifically, the key arrangement learning means 215 of the control unit 21 specifies the position of the key corresponding to each specified character using the general recognition area stored in the key arrangement storage unit 23.

  Next, the control unit 21 of the tablet terminal 20 executes a character locus pattern specifying process according to the order of the constituent characters (step S4-3). Specifically, the key arrangement learning means 215 of the control unit 21 specifies the character trajectory pattern by connecting the center positions of the general recognition areas of the specified characters in the order of the characters constituting the word.

  Next, the control part 21 of the tablet terminal 20 performs the registration process of a character locus pattern (step S4-4). Specifically, the key layout learning unit 215 of the control unit 21 stores the identified character trajectory pattern in the character trajectory pattern dictionary storage unit in association with the headword.

(Arrangement setting by locus input)
Next, the arrangement setting process by locus input will be described. In the present embodiment, as in the second embodiment, the control unit 21 of the tablet terminal 20 temporarily stores the collated user ID, then executes an application activation process, and displays a display screen including the software keyboard 500. Output to the touch panel display 30.

  And the control part 21 of the tablet terminal 20 performs a character input tap process (step S5-1). Here, similarly to step S2-1, when detecting a tap, the control unit 21 specifies the tap position, the character of the key selected by the user, and the display position of the character. Next, the control unit 21 displays the specified character on the display position on the touch panel display 30. And the key arrangement | positioning learning means 215 of the control part 21 calculates a tap time slot | zone, a preceding character, and a touch speed.

  Next, the control part 21 of the tablet terminal 20 performs the recording process of an input condition and a tap position (coordinate) (step S5-2). Specifically, the key arrangement learning unit 215 of the control unit 21 stores the tap position, the input status, and the display position in the tap information memory in association with the input character, similarly to step S2-2.

  Next, the control part 21 of the tablet terminal 20 performs the determination process about whether it is a delimiter input (step S5-3). Specifically, the key layout learning unit 215 of the control unit 21 compares the input character with the delimiter character. As a result of the comparison, if the input character is not a delimiter (“NO” in step S5-3), the key arrangement learning unit 215 repeats the processing from step S5-1.

  On the other hand, when a delimiter is input (in the case of “YES” in step S5-3), the control unit 21 of the tablet terminal 20 executes an input locus specifying process at the time of keyboard input (step S5-4). ). Specifically, the key arrangement learning means 215 of the control unit 21 specifies the previous delimiter character from the tap position and the display position, and specifies the tap position of each character from the previous delimiter character to the current delimiter character. . And the input locus | trajectory at the time of keyboard input is specified by connecting each tap position in tap order.

  Next, the control part 21 of the tablet terminal 20 performs a pattern matching process (step S5-5). Specifically, the key arrangement learning means 215 of the control unit 21 searches the character locus pattern dictionary storage unit for a character locus pattern that matches the specified input locus. In this case, the key layout learning unit 215 determines that the character locus pattern matches with the input locus when the deviation between the similar shape and the input locus is within the allowable range for pattern determination. In this case, the deviation between the character trajectory pattern and the input trajectory is determined to be the same even in the case of magnitude (similarity), rotation, and partial deformation.

  Next, the control part 21 of the tablet terminal 20 performs the determination process about whether there is any correction (step S5-6). Specifically, when the key layout learning unit 215 of the control unit 21 determines that a corrected character is input at the same display position as the deleted character, it determines that there is a correction.

  If there is a correction (in the case of “NO” in step S5-6), the control unit 21 of the tablet terminal 20 executes a process for specifying the corrected character (step S5-7). Specifically, the key arrangement learning means 215 of the control unit 21 specifies a newly input corrected character instead of the deleted character as in step S2-4.

  On the other hand, when there is no correction (in the case of “YES” in step S5-6), the control unit 21 of the tablet terminal 20 skips the process of specifying the corrected character (step S5-7).

  Next, the control unit 21 of the tablet terminal 20 executes a key arrangement changing process (step S5-8). Specifically, the key arrangement learning unit 215 of the control unit 21 moves the software keyboard 500 so that the tap coordinates of each character in the input locus coincide with the character locus pattern. In this case, the software keyboard 500 is enlarged and reduced to change the key arrangement. When there is a corrected character, the key layout learning unit 215 determines that the tap position of each character in the input locus specified using the character string including the character matches the character locus pattern. The software keyboard 500 is moved.

  Next, the control part 21 of the tablet terminal 20 performs the key area | region setting process corresponding to a tap position (step S5-9). Specifically, the key arrangement learning means 215 of the control unit 21 specifies a word of the input trajectory pattern, and specifies the key of each character constituting this word. The key arrangement learning unit 215 changes the individual recognition area for each key of the specified character so that the tap position of the input character is the center of the key. And it returns to the process after step S5-1 mentioned above.

According to this embodiment, in addition to the effect (1), the following effect can be obtained.
(5) In this embodiment, the control part 21 of the tablet terminal 20 performs the pattern matching process with the registered input locus pattern and the input locus pattern at the time of keyboard input (step S5-5). When the control unit 21 detects a character trajectory pattern that matches the specified input trajectory, it performs a key arrangement changing process (step S5-8) and a key area setting process corresponding to the tap position (step S5-9). Run. Thereby, the tap position can be specified by the character trajectory pattern, so that the key recognition range can be set in consideration of the input tendency of the user.

Moreover, you may change the said embodiment into the following aspects.
In each of the above embodiments, the tablet terminal 20 is used as the input support device, but the present invention is not limited to this. For example, the present invention can be applied to a smartphone that can be touch-input.

  In the above embodiments, the key arrangement is set according to the input situation. In this case, as the input situation, the tap time zone, the tap speed, the elapsed time from the start of key input, and the preceding input character immediately before the input character were used. The input situation for associating the key arrangement is not limited thereto, and for example, an input environment, tap strength, tap time, or the like may be used. Here, as the input environment, for example, the inclination of the tablet terminal 20 specified from the acceleration detected by the acceleration sensor provided in the tablet terminal 20 can be used. Further, the touch pressure detected by the pressure sensor of the touch panel display 30 can be used as the strength of the tap. Further, as the tap time, the time (long press time) in which the same tap position is touched can be used. By using such an input situation, it is possible to set a key recognition range suitable for the user's key input tendency.

  In each of the above embodiments, in the key area setting process corresponding to the tap position, the control unit 21 determines that the key tap position used for the deleted character is included in the key recognition area used for the corrected character. Changed the individual recognition area. In this case, the size of the individual recognition area is changed so as to include the specified tap position. The method for changing the individual recognition area is not limited to such a method. Here, you may make it change an individual recognition area | region according to an input condition. For example, the key recognition range may be determined using a plurality of key inputs for one key. In this case, the control unit 21 of the tablet terminal 20 generates, for each key, a touch frequency map that records the touch position for a predetermined period in association with the input state. Next, the control unit 21 calculates a statistical position for a predetermined number of touch positions using the touch frequency map. As the statistical position, for example, a touch area with a predetermined frequency or more, or the center of gravity of the distribution of touch positions can be used. Then, the key recognition range is changed from the statistical position corresponding to the input situation.

  -In the said 2nd Embodiment, the control part 21 of the tablet terminal 20 performs the determination process about whether there was correction (step S2-3). When it is determined that there is a correction (in the case of “YES” in step S2-3), the control unit 21 of the tablet terminal 20 specifies the corrected character (step S2-4), and the key area corresponding to the tap position. A setting process (step S2-5) is executed. Here, the movement of the entire keyboard and the individual recognition area of each key may be identified or corresponded. For example, when a plurality of key inputs of a reference number or more are corrected at one time in one word, the control unit 21 of the tablet terminal 20 determines the movement of the entire keyboard in order to determine the individual recognition area of each key. The center of gravity position is specified, and the tendency of the positional relationship (displacement) between the center of gravity position and the touch position is calculated. When multiple key inputs exceeding the reference number are corrected and it is determined that there is a shift in the same tendency (parallel movement, rotation, etc.) in these key inputs, the individual recognition area of each key is changed independently. Instead, the entire keyboard is moved (translated or rotated) according to the misalignment between the erroneous input key and the correction key. On the other hand, when the correction of the key input is less than the reference number, or when it is determined that there is no common tendency of deviation in a plurality of key inputs, the control unit 21 of the tablet terminal 20 displays the key area corresponding to the tap position. A setting process is executed (step S2-5).

  Further, the key area setting timing is not limited to the case where the key input is corrected. For example, the entire keyboard may be moved (translated or rotated) according to the degree of deviation at the time of matching between the character trajectory pattern and the input trajectory pattern or at the time of detecting a reference word registered in advance.

  In the above embodiments, the key arrangement is set according to the input situation. Here, the individual recognition range of the key may be changed according to the hand (right hand or left hand) used for key input. In this case, the control unit 21 of the tablet terminal 20 specifies whether the hand used for inputting each key is the right hand or the left hand. For example, the shaking of the tablet terminal 20 varies depending on the holding method of the tablet terminal 20. Specifically, when holding the tablet terminal 20 with the left hand and inputting keys with the right hand, holding the tablet terminal 20 with the right hand and inputting keys with the left hand, holding the tablet terminal 20 with both hands and inputting keys from both sides There is a case. Therefore, information specifying the hand (right hand or left hand) used for input is stored in the tablet terminal 20 in association with the acceleration pattern. The control unit 21 of the tablet terminal 20 specifies an acceleration pattern from the acceleration detected by the acceleration sensor provided in the tablet terminal 20, and specifies a hand (right hand or left hand) used for input according to the acceleration pattern.

  Further, the individual recognition range of the key may be changed according to the input situation based on the relationship between the finger used to input the preceding character and the finger used to input the subsequent character. In this case, a table in which a finger used for key input is recorded is prepared for each key. In this table, the individual recognition range of each subsequent key is recorded according to the finger used for the preceding key input. In this case, the individual recognition range of each key is grouped according to the finger used for input. In this table, an individual recognition range of each subsequent key may be registered for a finger generally used for inputting each key. Moreover, you may register the individual recognition range of each subsequent key with respect to the finger to be used according to a user. At the time of key input, the finger used for the preceding character input is specified based on the touch position, and the individual recognition range of each subsequent key is specified correspondingly. Then, the specified individual recognition range is changed according to the subsequent character input and the touch position.

  Moreover, you may specify the hand (right hand or left hand) to be used for every key to input. In this case, using the example sentence of the first embodiment, the hand (right hand or left hand) used for each key is specified and recorded as the usage status. Here, the example sentences include characters of keys (for example, the center key of the keyboard) that can be input with either the right hand or the left hand. Then, the hand used for the input is specified from the input state of the key input corresponding to the example sentence. For example, based on the elapsed time pattern (speed pattern of continuous key input) from the previous key input to this key input, it is specified whether the input is performed by the same hand or by different hands. For each key, the hand (right hand or left hand) used for key input is recorded.

  Here, when the software keyboard 500 is used, the position of the right hand or the left hand may gradually shift. For example, the touch positions of a plurality of keys input with the same hand (right hand or left hand) are shifted in the same direction, and the range of a plurality of key inputs input with the same hand has been enlarged or reduced. Sometimes. In this case, the individual recognition areas of other keys that are input with the same hand are also adjusted in accordance with the shift or enlargement / reduction.

  Specifically, the control unit 21 of the tablet terminal 20 specifies a hand (right hand or left hand) used for key input by initial learning, and records this information as an input situation. The key arrangement learning unit 215 records the change history when changing the key recognition area in the key area setting process. Further, the key arrangement learning unit 215 specifies a change history within a predetermined period in a plurality of key inputs input with the same hand (right hand or left hand). Next, the key arrangement learning unit 215 determines whether or not the change tendency (change direction or change amount of the recognition area) is common within a predetermined error range in the change history. When it is determined that the change tendency is common, the individual recognition areas of all keys input with this hand (right hand or left hand) are changed according to the change tendency. Thereby, it is possible to support the user's key input in consideration of the input tendency by the left and right manual input.

  Further, when the control unit 21 of the tablet terminal 20 determines that a shift has occurred in a plurality of keys in the right hand or the left hand, the keyboard area in the right hand or the left hand is shifted as a whole according to the amount of the shift. May be. For example, the control unit 21 predicts the overall tendency (not only the change direction and the change amount but also the enlargement / reduction and rotation) of the keyboard area in the right hand or the left hand from the change history when the key recognition area is changed. Depending on, other key recognition areas may be changed.

  In each of the above embodiments, it is assumed that English characters corresponding to each key are input in character input. The key input character is not limited to English characters, and can be applied to Japanese input such as kana characters. In this case, at the time of Kana-Kanji conversion or fixed input, the input key (key before conversion) is specified according to the input method such as Kana input method or Roman character input method, and each key is recognized individually. Identify the area.

  In the above embodiments, the control unit 21 of the tablet terminal 20 displays the software keyboard 500 on the touch panel display 30, and sets the key recognition range according to the user. Here, the key arrangement of the software keyboard 500 may be changed according to the individual recognition area of the key. In this case, the keyboard control unit 214 displays the software keyboard 500 having a key arrangement corresponding to the individual recognition area on the touch panel display 30.

  In the second embodiment, when the erroneous input is an adjacent key, the recognition area of this key is adjusted. Here, the correction for adjusting the key recognition area is not limited to the case where the erroneous input is an adjacent key. For example, when the control unit 21 of the tablet terminal 20 determines that there is an obvious error (spelling error), the error may be corrected and the key recognition area may be adjusted based on the error input. .

  In addition, when the repetition of the reference number or more is detected for correction to the original word for the same erroneous input, the control unit 21 of the tablet terminal 20 converts the touch position of the erroneous input into the original word. May be stored. Also in this case, the key is converted into the original word and the key recognition area is adjusted based on the input.

  In each of the second to fourth embodiments, during the operation of the application, the key arrangement learning unit 215 performs the key area setting process corresponding to the tap position (steps S2-5, S3-6, S5). -9). Here, in accordance with the usage status of the tablet terminal 20, an off setting that does not execute the key area setting process corresponding to the tap position may be performed. For example, when lending the tablet terminal 20 to another person, the off setting is performed. Thereby, it is possible to prevent key area setting based on a tendency different from the tendency of the user's key input.

  -In the said 3rd Embodiment, the control part 21 of the tablet terminal 20 performed the prediction process (step S3-3) of a character string using the word dictionary. Moreover, in the said 4th Embodiment, the control part 21 of the tablet terminal 20 performed the pattern matching process (step S5-5). Here, before performing the character string prediction process or pattern matching process, word narrowing may be executed according to the character input status. Specifically, the control unit 21 is further caused to function as a grammar rule determining unit that predicts the part of speech of the input word based on the grammar rules at the time of writing. Then, the key arrangement learning unit 215 of the control unit 21 acquires part-of-speech information of the next input word from the grammar rule determination unit according to the character input situation. And the key arrangement | positioning learning means 215 specifies a word using this part of speech information. Thereby, since the character input based on part-of-speech information can be narrowed down, pattern matching can be performed efficiently and accurately.

  Further, the key arrangement learning means 215 of the control unit 21 specifies part-of-speech information of a word using phrases and phrases registered in a corpus in which natural language sentences are structured and accumulated instead of grammatical rules, The word may be predicted after specifying this part of speech information.

  In the fourth embodiment, the control unit 21 determines that, in the pattern matching process (step S5-5), the deviation between the character locus pattern (similar shape and its position, etc.) and the input locus is within the allowable range for pattern determination. Is determined to match, and the key arrangement changing process is executed (step S5-8). Here, when the deviation between the similar shape of the character locus pattern and the input locus is within the allowable range, it may be displayed as an input candidate. Specifically, the control unit 21 specifies a word corresponding to the input character locus pattern from the degree of approximation based on the deviation, and displays it as an input candidate. And the control part 21 performs the key area | region setting process corresponding to a tap position using the word selected from the input candidates by the user.

  In each of the above-described embodiments, the control unit 21 of the tablet terminal 20 has executed an arrangement setting process by initial learning, an arrangement setting process by correction input, an arrangement setting process by input prediction, and an arrangement setting process by trajectory input. In addition to executing the arrangement setting method individually, the control unit 21 of the tablet terminal 20 may execute an arrangement setting process using both of them.

  In each of the above embodiments, the tablet terminal 20 stores the key individual recognition area in association with the user ID. The information is not limited to the user ID as long as it can be identified as a user. For example, when the number of users of the tablet terminal 20 is limited to one, the individual recognition area of the key may be stored for each tablet terminal 20. It is also possible to store the individual recognition area in association with the terminal identifier of the tablet terminal 20.

  Furthermore, when it is determined that another person who is different from the user (original user) whose individual recognition area is registered in the tablet terminal 20, the mode is changed to a mode different from the normal usage mode. May be. For example, when it is determined that the control unit 21 of the tablet terminal 20 is different from the original user, the control unit 21 executes a caution mode process different from the normal process. In the caution mode process, for example, deletion of stored information, screen lock, user authentication for continuing use, restriction on use of the tablet terminal 20, stop of updating of the individual recognition area, and the like are performed. Specifically, the control unit 21 stores a determination reference value for determining the same user. Then, the control unit 21 compares the input series of key inputs with the individual recognition areas and character trajectory patterns of each key (or each key of the reference word) registered for this user as needed. To monitor. And when the deviation | shift amount of both exceeds the determination reference value continuously for a predetermined period, it determines with the control part 21 not being an original user. In this case, the control unit 21 executes the above-described attention mode process. Thereby, in the tablet terminal 20, a usage mode can be changed in consideration of an original user's input tendency. Therefore, it is possible to prevent the individual user's individual recognition area from becoming inaccurate or used by another person without permission due to the input tendency of other users.

  In each of the above embodiments, the tablet terminal 20 stores the key individual recognition area in association with the user ID. Here, in the tablet terminal 20, when a key input different from the individual recognition area is detected, the alert mode may be set. Specifically, when a key input that is different from the individual user's individual recognition area exceeding the allowable range is detected, it is determined that the key is used by another person and input and display are limited. Thereby, the security of the tablet terminal 20 can be ensured using the individual recognition area.

  In each of the above embodiments, the character of the example sentence in the initial learning, the corrected character, and the character specified based on the locus are specified as the original key, and the key recognition range is set. Originally, the key is not limited to these. For example, it may be executed every time a reference word registered in advance is detected. Specifically, the tablet terminal 20 is provided with reference word storage means for registering reference words. As the reference word, for example, a simple and frequently occurring word or word may be used. Examples of this word include pronouns such as “he” and “that”, basic verbs such as “is” and “does” and negative forms thereof, or frequently used particles such as “on” and “in”, Examples include articles such as “the”. It is also possible to use phrases and phrases registered in the corpus as words having a high appearance frequency. In this case, it is desirable to select a plurality of reference words so that all alphabets are included. When the control unit 21 of the tablet terminal 20 detects the reference word between the delimiters, the control unit 21 specifies the tap position of the character included in the reference word and sets the key recognition range. Specifically, the control unit 21 adjusts the key recognition range so that the tap position of the character constituting the detected reference word is at the center of the key recognition region corresponding to this character.

  DESCRIPTION OF SYMBOLS 20 ... Tablet terminal, 21 ... Control part, 22 ... Word dictionary storage part, 23 ... Key arrangement storage part, 24 ... Example sentence storage part, 30 ... Touch panel display, 211 ... Display control means, 212 ... Touch control means, 213 ... Application Execution means, 214 ... keyboard control means, 215 ... key arrangement learning means, 500 ... software keyboard.

Claims (12)

A computer comprising: display means; input means; key arrangement storage means for storing recognition coordinate information of each key constituting the software keyboard; and control means for outputting information input in the input means to the display means. A program for supporting key input in a terminal,
The control means;
Means for outputting the software keyboard to the display means;
A specifying means for specifying an original key to be selected on the software keyboard and specifying an actual touch position touched to the original key; and the recognition coordinates recorded in the touch position and the key arrangement storage means An input support program that functions as an update unit that updates the recognition coordinate information of the original key recorded in the key arrangement storage unit according to a result of comparison with information. The key arrangement storage means stores the key recognition coordinate information in association with the key input status information,
The control means;
The key position storage means further functions as means for acquiring key input status information together with the touch position, and for identifying key recognition coordinate information corresponding to the acquired input status information in the key arrangement storage means. The input support program according to claim 1. The computer terminal further includes example sentence storage means storing example sentences used for specifying key recognition coordinate information,
The control means;
Display the example sentence stored in the example sentence storage means, and further function as a means for prompting key input for the example sentence;
The input support program according to claim 1 or 2, wherein the specifying unit specifies a key corresponding to a character constituting the example sentence as a key.   When detecting the corrected character, the specifying means specifies the key corresponding to the corrected character as the original key, and the touch position touched when the uncorrected character is input as the actual touch. The input support program according to claim 1, wherein the input support program is specified.   The said specific | specification means predicts a word according to an input character, and specifies the key corresponding to the character which comprises the predicted word as a key originally, The one of Claims 1-4 characterized by the above-mentioned. Input support program. The computer terminal further includes dictionary storage means for storing input word candidates,
The input support program according to claim 5, wherein the specifying unit predicts the word by collating the input character string with a character string of a word registered in the dictionary. The computer terminal further comprises character trajectory pattern storage means for storing a dictionary in which a character trajectory pattern at the time of input is registered in accordance with a key arrangement of characters constituting the word for an input word,
The said specifying means performs prediction of the said word by collation with the input locus pattern of the acquired touch position, and the said character locus pattern recorded in the said character locus pattern memory | storage means. Input support program. The computer terminal further comprises reference word storage means for storing a reference word,
The identification means identifies the key of each character constituting the reference word as the original key every time it detects that the reference word stored in the reference word storage means is input. 5. The input support program according to 5. The control means further functions as a grammar rule determining means for predicting the part of speech of an input word according to a grammar rule at the time of writing a sentence,
The specifying unit obtains part-of-speech information of a word input from the grammar rule determining unit according to a character input situation,
The input support program according to claim 5, wherein the word is specified using the part of speech information. The key arrangement storage means stores recognition coordinate information of each key in association with a user identifier,
The control means;
The user identifier of the user is specified, and further functioning as means for recording the recognized coordinate information of each key in the key arrangement storage means in association with the user identifier. The input support program according to claim 1. The control means;
Means for identifying the recognition coordinate information of the user's key to be used, and calculating a deviation amount between the acquired touch position and the recognition coordinate information, and the deviation amount exceeds a criterion value for determining the same user. The input support program according to any one of claims 1 to 10, further functioning as means for executing a caution mode process. Input support comprising a display means, an input means, a key arrangement storage means for storing recognition coordinate information of each key constituting the software keyboard, and a control means for outputting information inputted in the input means to the display means A device,
The control means is
Means for outputting the software keyboard to the display means;
A specifying means for specifying an original key to be selected on the software keyboard and specifying an actual touch position touched on the original key;
Updating means for updating the recognition coordinate information of the original key recorded in the key arrangement storage unit according to a result of comparing the touch position and the recognition coordinate information recorded in the key arrangement storage unit; An input support apparatus characterized by that.

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