JP5215103B2 - Character input device - Google Patents

Description

  The present invention relates to a character input device in which a character assigned to a key is input when the key is pressed.

  Conventionally, Japanese kana-kanji mixed Japanese input to computers via romaji kana conversion has been widely performed.

  Here, when Japanese input is performed through Roman character Kana conversion, English characters (alphabets) often remain after Roman character Kana conversion due to an input error. This remaining alphabet is the alphabet for the consonant. English letters for vowels are always converted to the corresponding Kana characters, so they will not remain as English letters after conversion to Roman Kana.

Based on such considerations, Japanese Patent Application Laid-Open No. 2003-228561 proposes a technique related to automatic correction of Japanese. According to Patent Document 1, there is proposed a technique for checking whether or not English characters remain when inputting Roman characters using a keyboard and performing kanji conversion, and correcting if left. Specifically, if the result of the conversion is “jirma”, it is checked whether “r” is removed and whether it is established as a word, and “r” is added with a vowel, and “jiranma”, “ It is checked whether it is formed as a word from “Dirimma”, “Dilumma”, “Dilemma”, and “Gironma”.
JP 2007-172661 A

  By the way, although the technique according to Patent Document 1 seems to be useful for character conversion correction in full keyboard input, it is not a useful technique in a device with few keys such as a mobile phone device. In mobile phone devices, in general, when a numeric keypad is pressed, a plurality of symbols assigned to the numeric keypad are operated in a toggle manner (an operation that repeatedly displays them). There will be no situation where English characters remain in For example, if a mobile phone device is assigned hiragana “A”, “I”, “U”, “E”, “O” for one key, and the input method is Hiragana, The hiragana to be selected is determined by the number of times the key is continuously pressed, and the keys are toggled to “A” → “I” → “U” → “E” → “O” → “A”. To do. Further, the technique according to Patent Document 1 is not suitable for correcting erroneous input of characters due to such a toggle operation.

  An object of the present invention is to provide a character input device capable of correcting an erroneous input peculiar to character input using a numeric keypad that operates in a toggle manner.

  In order to solve the above problems, a character input device according to the present invention is assigned at least one character input key to which a plurality of characters are assigned, and a character deletion function for deleting a character input by the character input key. When the character input key is operated, a plurality of characters assigned to the character input key are changed in a predetermined order and displayed on the display unit when the character input key is operated. A display control unit that controls the display unit, a first storage unit that stores one or more characters displayed on the display unit as an input candidate character string, and a conversion candidate character string corresponding to the input candidate character string. When the conversion candidate creation unit to be created and the character input by the character input key are deleted by operating the delete key, the deleted character is stored in the first storage unit. A character deleting unit that deletes the character deleted from the candidate character string; and a second storage unit that stores the character deleted by the character deleting unit. The conversion candidate creating unit receives a character from the input candidate character string by the character deleting unit. When deleted, a character other than the character stored in the second storage unit is selected from the characters assigned to the character input key corresponding to the character stored in the second storage unit, and the selection is made A conversion candidate character string corresponding to a character string combining the converted character and the conversion candidate character string stored in the first storage unit, and the display control unit generates the conversion candidate character string generated It is possible to selectably display on the display unit.

  In the character input device, after the character is deleted from the input candidate character string by the character deletion unit, the display position of the index indicating the character input position is moved from the display position of the character deleted by the delete key. The display control unit terminates the display of the conversion candidate character string corresponding to the combination of the selected character and the conversion candidate character string stored in the first storage unit on the display unit. It is preferable.

  In the character input device, when the index is displayed at the position of the deleted character in the input candidate character string, a character input key different from the character input key to which the deleted character is assigned When an input is made, the display control unit displays the conversion candidate character string corresponding to the combination of the selected character and the conversion candidate character string stored in the first storage unit. It is preferable to end the display on the part.

  In order to solve the above-described problem, the character input device according to the present invention has at least one character input key to which a plurality of characters are assigned, and a character deletion function for deleting a character input by the character input key. An input unit having an assigned delete key; and a display unit that, when the character input key is operated, causes a plurality of characters assigned to the character input key to transition in a predetermined order according to the operation. A display control unit that controls the display so that the character input key is operated, and one or more characters displayed on the display unit are stored as input candidate character strings when the character input state changes. A conversion candidate creation unit that creates a conversion candidate character string corresponding to the input candidate character string, and a conversion candidate character string created by the conversion candidate creation unit. Or a confirmation part for confirming a character string when no conversion is selected, and a correspondence relationship when the character string is confirmed by the confirmation part and converted from a character string before confirmation to a character string after confirmation A second storage unit that stores the character string before the confirmation, and when a character included in the character string confirmed by the confirmation unit is deleted by the delete key, the deleted character A character deletion unit that extracts a character before confirmation with reference to the second storage unit and deletes the extracted character from the input candidate character string stored in the first storage unit; and the character deletion A third storage unit that stores characters deleted by the unit, and the conversion candidate creation unit is stored in the third storage unit when a character is deleted from the input candidate character string by the character deletion unit. Characters other than Corresponding to the combination of the selected character and the conversion candidate character string stored in the first storage unit, selected from the characters assigned to the character input key corresponding to the character stored in the part A conversion candidate character string is created.

  In the character input device, the conversion candidate creation unit may be configured to input a character to which the deleted character is assigned when the index is displayed at the position of the deleted character in the input candidate character string. When an input to a character input key different from the key is performed, a character input key corresponding to the character stored in the third storage unit is replaced with a character other than the character stored in the third storage unit. It is preferable to finish the creation of the conversion candidate character string corresponding to the combination of the selected character and the conversion candidate character string stored in the first storage unit.

  According to the present invention, it is possible to correct erroneous input peculiar to character input by operating the numeric keypad in a toggle manner.

  Embodiments of the present invention will be described below. FIG. 1 is an external perspective view of a cellular phone device 1 which is an example of a character input device according to the present invention. 1 shows a form of a so-called foldable mobile phone device, the form of the mobile phone device according to the present invention is not particularly limited to this. For example, a sliding type in which one casing is slid in one direction from a state in which both casings are overlapped, or a rotary type in which one casing is rotated around an axis along the overlapping direction ( (Turn type) or a type (straight type) in which the operation unit and the display unit are arranged in one housing and do not have a connecting unit.

  The mobile phone device 1 includes an operation unit side body unit 2 and a display unit side body unit 3. The operation unit side body unit 2 includes an operation unit 11 and a microphone 12 into which a voice uttered by a user of the mobile phone device 1 is input on the surface unit 10. The operation unit 11 includes a function setting operation key 13 for operating various functions such as various settings, a telephone book function, a mail function, and the like, and an input operation key 14 for inputting a telephone number and characters such as mail. , And a determination operation key 15 for performing determination and scrolling in various operations.

  Further, the display unit side body unit 3 includes, on the surface unit 20, an LCD (Liquid Crystal Display) display unit 21 for displaying various types of information, and a speaker 22 for outputting the voice of the other party of the call. It is configured.

  Further, the upper end of the operation unit side body 2 and the lower end of the display unit side body 3 are connected via a hinge mechanism 4. In addition, the cellular phone device 1 relatively rotates the operation unit side body 2 and the display unit side body 3 connected via the hinge mechanism 4, thereby The display unit side body 3 can be opened to each other (open state), or the operation unit side body 2 and the display unit side body 3 can be folded (folded).

  FIG. 2 is a functional block diagram showing functions of the mobile phone device 1. As shown in FIG. 2, the mobile phone device 1 includes an operation unit 11 (key operation unit), a microphone 12, a main antenna 40, an RF circuit unit 41, an LCD control unit 42, an audio processing unit 43, A memory 44 and a control unit 45 are provided in the operation unit side body 2, and an LCD display unit 21 (display unit), a speaker 22, a driver IC 23, and a sub LCD display unit 30 are included in the display unit side case. The body part 3 is provided.

  The main antenna 40 communicates with a base station or the like in a first use frequency band (for example, 800 MHz), and can support a second use frequency band (for example, 1.5 GHz) for GPS communication. It is. In the present embodiment, the first frequency band used is 800 MHz, but other frequency bands may be used. Further, the main antenna 40 may be separately provided with an antenna that communicates with an external device in the first use frequency band and can correspond to the second use frequency band for GPS communication.

  The RF circuit unit 41 demodulates the signal received by the main antenna 40 and supplies the processed signal to the control unit 45. Then, the signal supplied from the control unit 45 is modulated and transmitted to an external device (base station) via the main antenna 40. On the other hand, the control unit 45 is notified of the strength of the signal received by the main antenna 40.

  The LCD control unit 42 performs predetermined image processing according to the control of the control unit 45, and outputs the processed image data to the driver IC 23. The driver IC 23 stores the image data supplied from the LCD control unit 42 in the frame memory and outputs it to the LCD display unit 21 or the sub LCD display unit 30 at a predetermined timing.

  The sound processing unit 43 performs predetermined sound processing on the signal supplied from the RF circuit unit 41 under the control of the control unit 45, and outputs the processed signal to the speaker 22. The speaker 22 outputs the signal supplied from the sound processing unit 43 to the outside.

  In addition, the audio processing unit 43 processes the signal input from the microphone 12 according to the control of the control unit 45 and outputs the processed signal to the RF circuit unit 41. The RF circuit unit 41 performs a predetermined process on the signal supplied from the sound processing unit 43 and outputs the processed signal to the main antenna 40.

  The memory 44 includes, for example, a working memory and is used for arithmetic processing by the control unit 45. The memory 44 stores a plurality of applications and various tables necessary for the applications. The memory 44 may also serve as a removable external memory.

  The control unit 45 controls the entire mobile phone device 1 and is configured using a central processing unit (CPU) or the like. Here, the control operation of the control unit 45 according to the key operation by the operation unit 11 will be described. In principle, the control unit 45 assigns symbols and functions to each key (the function setting operation key 13, the input operation key 14, and the determination operation key 15) constituting the operation unit 11 in accordance with an application that is currently actively activated. To change.

  Specifically, when any of the keys is pressed, the operation unit 11 detects the position information of the key (for example, as shown in FIG. 3A, the left column of the second row of the input operation keys 14). When the key (the key with “1” and “a” printed on the front surface) is pressed, the position information (X2, Y1) is transmitted to the control unit 45. The control unit 45 accesses the memory 44, refers to the key assignment table corresponding to the currently active application, and processes the symbols and functions assigned from the position information transmitted from the operation unit 11. Run. For example, as shown in FIGS. 3B to 3D, the memory 44 stores a plurality of key assignment tables. 3B is a table used when making a call, FIG. 3C is a table used in a notepad application or a mail application, and FIG. It is a table used when changing a channel in a television application.

  In the cellular phone device 1, the input of symbols by the operation unit 11 operates in a toggle manner (an operation for repeatedly displaying). For example, in the setting of the hiragana input, the keys in the left row of the second row of the input operation keys 14 (keys with “1” and “A” printed on the front surface) are continuously pressed, so that “A” → “I” → “U” → “E” → “O” → “Ah”, and so on.

  Further, execution of symbol processing means, for example, that “1” or “A” is displayed on the LCD display unit 21 when the currently active application is Notepad. The execution of the function processing means, for example, that the display channel is set to 1ch when the currently active application is a television.

  In this way, the memory 44 stores a plurality of key assignment tables, and the control unit 45 switches the key assignment table to be referenced according to the application, and positions of keys transmitted from the operation unit 11. A predetermined process is executed by referring to a predetermined key assignment table based on the information.

  In the mobile phone device 1 configured as described above, for example, in the setting of hiragana input, when an erroneous character is included in the character string input by pressing the input operation key 14, the erroneous character is deleted. By doing so, it has a function of displaying conversion candidates based on a correct character string.

  Here, a configuration for exhibiting the above-described function (an erroneous input correction function before character determination) will be functionally described. As illustrated in FIG. 4, the mobile phone device 1 includes an operation unit 11 (input unit), a display control unit 101, a first storage unit 102, a conversion candidate creation unit 103, a character deletion unit 104, And a storage unit 105. The display control unit 101 corresponds to the LCD control unit 42. Further, the first storage unit 102 and the second storage unit 105 may have a configuration corresponding to the memory 44, or may be configured by a memory physically different from the memory 44. The conversion candidate creation unit 103 and the character deletion unit 104 correspond to the control unit 45.

  The operation unit 11 includes at least one input operation key 14 (character input key) to which a plurality of characters are assigned, and a delete key 14a to which a character deletion function for deleting a character input by the input operation key 14 is assigned. Have.

  When the input operation key 14 is operated, the display control unit 101 shifts a plurality of characters assigned to the input operation key 14 in accordance with the operation in a predetermined order to display the LCD display unit 21 (display unit). ) To display.

  The first storage unit 102 operates when the input operation key 14 is operated and the character input state changes (for example, when the key pressed in the input operation key 14 is changed or when the long press is released). At the time, etc.), one or more characters displayed on the LCD display unit 21 are stored as input candidate character strings.

  The conversion candidate creation unit 103 creates a conversion candidate character string corresponding to the input candidate character string. When the delete key 14 a is operated and the character input by the input operation key 14 is deleted, the character deletion unit 104 deletes the deleted character from the input candidate character string stored in the first storage unit 102. delete. The second storage unit 105 stores the characters deleted by the character deletion unit 104.

  The conversion candidate creation unit 103 is assigned to the input operation key 14 corresponding to the character stored in the second storage unit 105 when the character is deleted from the input candidate character string by the character deletion unit 104. A character other than the character stored in the second storage unit 105 is selected from the characters, and the conversion candidate character corresponding to the combination of the selected character and the conversion candidate character string stored in the first storage unit 102 Create a column.

  Here, a specific example of the erroneous input correction function before character confirmation by the mobile phone device 1 will be described. For example, the following description will be given assuming that the user has erroneously input “Kenko” with the intention of inputting “Kenko” (“Health after conversion”).

  When the user operates the input operation key 14 and inputs “Kenko”, the display control unit 101 displays “Kenko” as an undetermined character string on the LCD display unit 21 as shown in FIG. Is displayed. At this time, the first storage unit 102 stores “Kenko” as an input candidate character string. Further, the conversion candidate creation unit 103 creates a conversion candidate character string corresponding to “Kenkoi”. The display control unit 101 performs control so that the created conversion candidate character string is displayed at a predetermined position on the LCD display unit 21 (a lower region of the display in FIG. 5A).

  Next, when the user presses the delete key 14 a and “I” is deleted, the character deletion unit 104 inputs “I”, which is the deleted character, stored in the first storage unit 102. Deleted from the candidate character string, the second storage unit 105 stores “i”, which is the deleted character. The conversion candidate creation unit 103 includes other characters (that is, “A”, “U”, etc.) assigned to the input operation key 14 corresponding to the character “I” stored in the second storage unit 105, and A conversion candidate character string corresponding to a combination with the conversion candidate character string (that is, “Kenko”) stored in the first storage unit 102 is created. Specifically, the conversion candidate creation unit 103 can combine the character strings such as “Kenkoa” and “Kenko” with reference to the word dictionary stored in the memory 44 or the like to determine whether it can be a meaningful word. A new conversion candidate character string is created by determining whether or not and extracting a hiragana character string that can be a meaningful word. In the case of the present embodiment, “Health, Health, Concurrency, Authority ...” is created as a new conversion candidate character string (see FIG. 5B).

  Then, when “health” is selected from the conversion candidate character strings displayed by a predetermined operation by the user, the display control unit 101 displays “health” on the LCD display unit 21 as a character string in which “health” is determined. (See FIG. 5 (c)).

  With this configuration, the mobile phone device 1 can be deleted by performing an operation to delete the erroneous character when the input character string includes the erroneous character. The conversion candidate character string is created by using the characters assigned to the operation key to which the deleted character is assigned before and after the deleted character, and the user does not have to input the correct character again with the key. Since the converted character string can be predicted and generated, it is possible to save the user from having to input the key at the time of erroneous input.

  The conversion candidate creation unit 103 stores an index (so-called cursor) indicating the character input position, which is stored in the second storage unit 105 when the character deletion unit 104 deletes a character from the input candidate character string. A character other than the character displayed at the position where is displayed is selected from the characters assigned to the input operation key 14 corresponding to the character stored in the second storage unit 105, and the selected character is selected. It is preferable to create a conversion candidate character string corresponding to a combination of a character and a conversion candidate character string stored in the first storage unit 102.

  Specifically, in the mobile phone device 1, for example, when only the third character “Ke” is deleted from the character string input “Kenkeu”, the cursor position is “Ken” and “Ken”. Because it is between “U”, the characters “KU” and “KO” assigned to the same operation key as “KE” before and after “KE” are supplemented by “KU” and “Kenko”. ”Or the like is combined to determine whether or not it can be a meaningful word, and a character string that can be a meaningful word is extracted to create a new conversion candidate character string (in the case of this embodiment) "Health, health, cum, authority ...").

  With this configuration, the mobile phone device 1 can be deleted by performing an operation to delete the erroneous character when the input character string includes the erroneous character. The conversion candidate character string is created by using the characters assigned to the operation key to which the deleted character is assigned before and after the deleted character, and the user does not have to input the correct character again with the key. Since the converted character string can be predicted and generated, it is possible to save the user from having to input the key at the time of erroneous input.

  Also, the conversion candidate creation unit 103 receives an input operation key 14 different from the input operation key 14 to which the deleted character is assigned at the position of the deleted character in the input candidate character string. The conversion candidate character corresponding to the combination of the character assigned to the input operation key 14 corresponding to the character stored in the second storage unit 105 and the conversion candidate character string stored in the first storage unit 102 It is preferable to finish creating the column.

  With this configuration, the mobile phone device 1 determines that the user desires a character string other than that presented as the conversion candidate character string, and does not operate the conversion candidate creation unit 103. The operability can be improved without confusing the user.

  A configuration for demonstrating an erroneous input correction function after character determination will be functionally described. As illustrated in FIG. 6, the mobile phone device 1 includes an operation unit 11 (input unit), a display control unit 151, a first storage unit 152, a conversion candidate creation unit 153, a determination unit 154, and a second storage. Unit 155, a character deletion unit 156, and a third storage unit 157. The display control unit 151 corresponds to the LCD control unit 42. In addition, the first storage unit 152, the second storage unit 155, and the third storage unit 157 may have a configuration corresponding to the memory 44, or may be configured by a physically different memory from the memory 44. Also good. Further, the conversion candidate creation unit 153 and the character deletion unit 156 correspond to the control unit 45.

  The operation unit 11 includes at least one input operation key 14 (character input key) to which a plurality of characters are assigned, and a delete key 14a to which a character deletion function for deleting a character input by the input operation key 14 is assigned. Have.

  When the input operation key 14 is operated, the display control unit 151 causes a plurality of characters assigned to the input operation key 14 to transition in a predetermined order and display them on the LCD display unit 21 according to the operation. To control.

  The first storage unit 152 stores one or more characters displayed on the LCD display unit 21 as input candidate character strings when the input operation key 14 is operated and the character input state changes.

  The conversion candidate creation unit 153 creates a conversion candidate character string corresponding to the input candidate character string. The determination unit 154 determines the character string when the conversion candidate character string created by the conversion candidate creation unit 153 is selected or when no conversion is selected. The second storage unit 155, when the character string is confirmed by the confirmation unit 154, the correspondence when the character string before confirmation (that is, the input candidate character string) is converted to the character string after confirmation, and the confirmation The previous character string (input candidate character string) is stored.

  When a character included in the character string confirmed by the confirmation unit 154 is deleted by the delete key 14a, the character deletion unit 156 displays the character before the confirmation of the deleted character as the second storage unit 155. And the extracted character is deleted from the input candidate character string stored in the first storage unit 152. The third storage unit 157 stores the character deleted by the character deletion unit 156.

  The conversion candidate creation unit 153 stores characters other than the characters stored in the third storage unit 157 in the third storage unit 157 when the characters are deleted from the input candidate character string by the character deletion unit 156. A conversion candidate corresponding to a combination of the selected character and the conversion candidate character string stored in the first storage unit 152 is selected from the characters assigned to the input operation key 14 corresponding to the selected character. Create a string.

  Here, a specific example of the erroneous input correction function after character confirmation by the mobile phone device 1 will be described. For example, a description will be given below assuming that the user has erroneously input “Moka” with the intention of inputting “Mako” (after conversion, “Mongolia”) and has confirmed it with “Fire”.

  When the user operates the input operation key 14 and inputs “other”, the display control unit 151 displays “another” as an undetermined character string on the LCD display unit 21 as shown in FIG. Is displayed. At this time, the first storage unit 152 stores “other” as an input candidate character string. Also, the conversion candidate creation unit 153 creates a conversion candidate character string corresponding to “Moka”. The display control unit 151 performs control so that the created conversion candidate character string is displayed at a predetermined position on the LCD display unit 21 (a lower region of the display in FIG. 7A).

  The confirmation unit 154 determines “fire” as a character string when “fire” is selected from the conversion candidate character string by the user's operation. The second storage unit 155 corresponds to the character string “other” before being confirmed corresponding to the character string “furious” after being confirmed, and the character string “ka” being before being confirmed corresponds to the character string “fire” after being confirmed. The character string “Burning fire” after the confirmation is stored. Further, the display control unit 151 displays the character string “Burning fire” after confirmation on the LCD display unit 21 (see FIG. 7B).

  Next, when the user presses the delete key 14a and “fire” is deleted, the character deletion unit 156 refers to the second storage unit 155 based on the deleted character “fire”. Then, the character before determination (that is, “ka”) is extracted, and the extracted character is deleted from the input candidate character string stored in the first storage unit 152. That is, only “other” is stored in the first storage unit 152. Further, the third storage unit 157 stores the character “ka” deleted by the character deletion unit 156.

  In addition, the conversion candidate creation unit 153 uses a character other than the character stored in the third storage unit 157 from the character assigned to the input operation key 14 corresponding to the character “ka” stored in the third storage unit 157. A character (ie, “ko”, “ki”, etc.) is selected, and the selected character (ie, “ko”, “ki”, etc.) and a conversion candidate character stored in the first storage unit 152 are selected. A conversion candidate character string corresponding to the combination with the column (that is, “other”) is created. Specifically, the conversion candidate creation unit 153 refers to the word dictionary stored in the memory 44 or the like by combining character strings such as “Mako” and “Maki”, and determines whether or not the word is meaningful. A new conversion candidate character string is created by determining and extracting a meaningful word. In the case of the present embodiment, “Mako, Mongolia,...” Is created as a new conversion candidate character string (see FIG. 7C).

  When “Mongolia” is selected from the conversion candidate character strings displayed by the user's predetermined operation, the display control unit 151 displays “Mongolia” on the LCD display unit 21 as a confirmed character string. (See FIG. 7 (d)).

  With this configuration, when the confirmed character string is incorrect, the cellular phone device 1 performs an operation of deleting the confirmed character string, thereby Incorrect characters are deleted from inside, a conversion candidate character string is created by combining a new character string, and the user can predict the desired converted character string without having to input the correct character again with the key. Therefore, it is possible to save the user from having to input keys at the time of erroneous input.

  Also, the conversion candidate creation unit 153 stores the character stored in the third storage unit 157 when the character deletion unit 156 deletes the character from the input candidate character string, and displays an index indicating the character input position. A character other than the character displayed at the position is selected from the characters assigned to the input operation key 14 corresponding to the character stored in the third storage unit 157, and the selected character and the first character are selected. It is preferable to create a conversion candidate character string corresponding to a combination with the conversion candidate character string stored in the storage unit 152.

  Specifically, in the mobile phone device 1, for example, when “relict” is confirmed as the character string after confirmation of the unconfirmed character string “Ihin”, when “article” is deleted, the position of the cursor Is between the unconfirmed character strings “I” and “Hin”, so the second character from the beginning is supplemented with the characters before and after “Hin”, and the character strings such as “Ihan”, “Ifun”, etc. In combination, it is determined whether or not the word is meaningful, and the hiragana of the meaningful word is extracted to create a new conversion candidate character string (in this example, “ ·"etc).

  With this configuration, when the confirmed character string is incorrect, the cellular phone device 1 performs an operation of deleting the confirmed character string, thereby Incorrect characters are deleted from inside, a conversion candidate character string is created by combining a new character string, and the user can predict the desired converted character string without having to input the correct character again with the key. Therefore, it is possible to save the user from having to input keys at the time of erroneous input.

  Also, the conversion candidate creation unit 153 has an input operation key 14 different from the input operation key 14 to which the deleted character is assigned when the index is displayed at the position of the deleted character in the input candidate character string. When an input is made to a character other than the character stored in the third storage unit 157, the character assigned to the input operation key 14 corresponding to the character stored in the third storage unit 157 Preferably, the creation of the conversion candidate character string corresponding to the combination of the selected character and the conversion candidate character string stored in the first storage unit 152 is terminated.

  With this configuration, the mobile phone device 1 determines that the user desires a character string other than that presented as the conversion candidate character string, and does not operate the conversion candidate creation unit 103. The operability can be improved without confusing the user.

<Process flow>
Next, the flow of processing in which the erroneous input correction function after character determination and before character determination described above is demonstrated will be described with reference to the flowchart shown in FIG. In the following description, it is assumed that the control unit 45 exhibits the function of the conversion candidate creation unit 103, the function of the character deletion unit 104, the function of the conversion candidate creation unit 153, and the function of the character deletion unit 156. Further, in this embodiment, for convenience of explanation, the description proceeds to step S1 to step S5, returns to step S1, then proceeds to step S6 to step S8, returns to step S1, and then proceeds to step S9. The flow is not limited to this.

  In step S1, the control unit 45 determines what operation has been performed. If it is determined that the input character has been deleted, the process proceeds to step S2. If it is determined that the character input operation has been performed, the process proceeds to step S6, where it is determined that the character confirmation operation has been performed. The process proceeds to step S9.

  In step S2, the control unit 45 deletes the character (for example, “I”) deleted from the storage unit (the first storage unit 102) in which the undetermined character string (for example, “Kenkoi”) is stored ( to erase.

  In step S <b> 3, the control unit 45 stores the deleted character (for example, “I”) in the deleted character string storage unit (second storage unit 105).

  In step S4, the control unit 45 includes, as a word, a character string that combines an unconfirmed character string (for example, “kenko”) with characters before and after the deleted character string (for example, “a” and “u”). Judgment is made with reference to a word dictionary or the like.

  In step S5, when it is determined that the control unit 45 is present in the word dictionary in step S4, the LCD control unit 45 preferentially displays the character string as a new conversion candidate character string on the LCD display unit 21. 42 is controlled. In this embodiment, “Health, Health, Concurrency, Authority ...” is displayed as a new conversion candidate character string.

  In step S <b> 6, the control unit 45 adds a newly input character to the storage unit (first storage unit 102) in which the undetermined character string is stored. For example, in the above-described steps S1 to S5, when “Kenkoi” is input as an initially undetermined character string by the user's operation, and “I” is deleted, from step S5 When returning to step S1, for example, when “ku” is input, the unconfirmed character string is “kenkoku”.

  In step S7, the control unit 45 deletes the character stored in the second storage unit 105 in the step S3. In this embodiment, “I” stored in the second storage unit 105 is deleted.

  In step S8, in the case of the character input operation immediately after the input character is deleted, the control unit 45 ends the display of the conversion candidate character string displayed in step S5. In the present embodiment, the display of “health, health, cum, authority ...” ends.

  In step S9, the control unit 45 determines an unconfirmed character in accordance with a predetermined confirmation operation.

  In step S10, the control unit 45 stores the confirmed character in the storage unit (second storage unit 155) in which the confirmed character is stored.

  In step S11, the control unit 45 stores the contents stored in the storage unit (first storage unit 152) in which unconfirmed characters are stored and the storage unit (third storage unit) in which the deleted character string is stored. to erase.

  In step S12, the control unit 45 determines what operation has been performed. If it is determined that a new character has been input, the process proceeds to step S13. If it is determined that the confirmed character string has been deleted, the process proceeds to step S14.

  In step S <b> 13, the control unit 45 deletes the contents of the second storage unit 155. Then, it returns to step S1.

  In step S <b> 14, the control unit 45 refers to the second storage unit 155 based on the deleted character, extracts the character before confirmation, and the extracted character is stored in the first storage unit 152. From the input candidate character string, and the extracted character is stored in the third storage unit 157.

  In step S <b> 15, the control unit 45 refers to the third storage unit 157, moves the deleted fixed character (Hiragana) around one character, and determines whether it exists as a word by referring to the word dictionary. . For example, if you delete "fire" after entering "Fire", create a string with "ka" before and after ("Maki", "Moko") and check whether it is a meaningful word. Judgment is made by referring to the word dictionary.

  In step S16, when it is determined that the control unit 45 is present in the word dictionary in the step S15, the LCD control unit 45 preferentially displays the character string as a new conversion candidate character string on the LCD display unit 21. 42 is controlled. In the present embodiment, “Mako, Mongolia ...” is displayed as a new conversion candidate character string.

  With this configuration, when the confirmed character string is incorrect, the cellular phone device 1 performs an operation of deleting the confirmed character string, thereby Incorrect characters are deleted from inside, a conversion candidate character string is created by combining a new character string, and the user can predict the desired converted character string without having to input the correct character again with the key. Therefore, it is possible to save the user from having to input keys at the time of erroneous input.

1 is an external perspective view of a mobile phone device. It is a functional block diagram which shows the function of a mobile telephone apparatus. It is a figure where it uses for description about a key assignment. It is a functional block diagram for demonstrating the incorrect input correction function before character determination. It is a schematic diagram which shows the transition of a screen. It is a functional block diagram for demonstrating the incorrect input correction function after character determination. It is a schematic diagram which shows the transition of a screen. It is a flowchart with which it uses for description about the flow of the process by which the incorrect input correction function after character determination and before character determination is exhibited.

Explanation of symbols

1 Mobile phone device 11 Operation unit (input unit)
14 Input operation keys (character input keys)
14a Delete key 101, 151 Display control unit (display control unit)
102, 152 First storage unit 103, 153 Conversion candidate creation unit 104, 156 Character deletion unit 105, 155 Second storage unit 154 Determination unit 157 Third storage unit

Claims (5)

An input unit having at least one character input key to which a plurality of characters are assigned, and a delete key to which a character deletion function for deleting a character input by the character input key is assigned;
When the character input key is operated, a display control unit that controls the plurality of characters assigned to the character input key to be changed in a predetermined order and displayed on the display unit according to the operation;
A first storage unit for storing one or more characters displayed on the display unit as an input candidate character string;
A conversion candidate creation unit for creating a conversion candidate character string corresponding to the input candidate character string;
A character deletion unit that deletes the deleted character from the input candidate character string stored in the first storage unit when the character input by the character input key is deleted by operating the deletion key; ,
A second storage unit for storing the character deleted by the character deletion unit,
The conversion candidate creation unit, when a character is deleted from the input candidate character string by the character deletion unit, from the character assigned to the character input key corresponding to the character stored in the second storage unit A conversion candidate character string corresponding to a character string obtained by selecting a character other than the character stored in the second storage unit and combining the selected character and the conversion candidate character string stored in the first storage unit The display control unit displays the created conversion candidate character string so as to be selectable on the display unit.   After the character is deleted from the input candidate character string by the character deletion unit, when the display position of the index indicating the character input position is moved from the display position of the character deleted by the delete key, the display control unit The display of the conversion candidate character string corresponding to the combination of the selected character and the conversion candidate character string stored in the first storage unit is terminated on the display unit. The character input device described.   When the index is displayed at the position of the deleted character in the input candidate character string, when an input to a character input key different from the character input key to which the deleted character is assigned is performed In addition, the display control unit ends the display of the conversion candidate character string corresponding to the combination of the selected character and the conversion candidate character string stored in the first storage unit on the display unit. The character input device according to claim 2. An input unit having at least one character input key to which a plurality of characters are assigned, and a delete key to which a character deletion function for deleting a character input by the character input key is assigned;
When the character input key is operated, a display control unit that controls the plurality of characters assigned to the character input key to be changed in a predetermined order and displayed on the display unit according to the operation;
A first storage unit that stores one or more characters displayed on the display unit as input candidate character strings when the character input key is operated and a character input state changes;
A conversion candidate creation unit for creating a conversion candidate character string corresponding to the input candidate character string;
A conversion candidate character string created by the conversion candidate creation unit is selected, or a confirmation unit that determines a character string when no conversion is selected, and
When the character string is confirmed by the confirmation unit, a correspondence relationship when the character string before confirmation is converted to a character string after confirmation, and a second storage unit that stores the character string before confirmation;
When a character included in the character string confirmed by the confirmation unit is deleted by the delete key, the character before confirmation is referred to the second storage unit based on the deleted character. A character deletion unit that extracts and deletes the extracted character from the input candidate character string stored in the first storage unit;
A third storage unit for storing the character deleted by the character deletion unit,
The conversion candidate creation unit stores characters other than the characters stored in the third storage unit in the third storage unit when the characters are deleted from the input candidate character string by the character deletion unit. A conversion candidate character string corresponding to a combination of the selected character and a conversion candidate character string stored in the first storage unit. Character input device characterized by creating.   The conversion candidate creation unit, when an index is displayed at the position of the deleted character in the input candidate character string, to a character input key different from the character input key to which the deleted character is assigned When input is performed, a character other than the character stored in the third storage unit is selected from the characters assigned to the character input keys corresponding to the characters stored in the third storage unit. 5. The character input device according to claim 4, wherein the creation of the conversion candidate character string corresponding to the combination of the selected character and the conversion candidate character string stored in the first storage unit is terminated. .

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