JP2012108893A - Hand-written entry method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique facilitating an edition of hand-written characters.SOLUTION: The locus of characters input by a user is detected as a series of coordinate data, and the series of data detected in the former step is separated based on a prescribed condition. Regarding each of the separated coordinate data as hand-written character data, the hand-written character data is displayed in a display area based on prescribed format information. In this case, character recognition of the hand-written character data is performed to specify a character code of the hand-written character data, and each hand-written character data and the character code may be stored in association with each other in a storage part, or the consecutive character code may be compared with dictionary data to determine information of word or clause separation and added to the format information.

Description

  This case relates to hand-drawn character input technology.

When a hand-drawn character is hand-drawn on paper with a pen, there is a system in which the position coordinate of the pen is detected by a detector and input to a computer, and the computer displays the hand-drawn character on a display device based on the input position coordinate. Known (Patent Document 1).
In addition, when performing hand-drawn input on an electronic whiteboard, a system has also been proposed that simplifies hand-drawn input by indicating the next character candidate based on the entered character and selecting the character to be entered from this candidate. (Patent Document 2).

JP 2009-86769 A JP 2007-265171 A

As described above, in the system for performing hand-drawn input, since the input characters are handled as graphics (vector data) and images, there is a problem that editing cannot be performed freely like text data. For example, it is not possible to perform editing such as changing the arrangement of hand-drawn characters and rearranging them, or deleting some characters and moving up subsequent characters.
For this reason, a system that converts input hand-drawn characters into text data by character recognition processing and enables editing is also known.
However, in a system that performs character recognition, it is necessary to sequentially select a plurality of conversion candidates to be extracted when handwritten input is performed, and it has not been possible to input smoothly such as taking notes on paper.
In addition, after character recognition, since the font corresponding to the character code of each character is displayed, it is impossible to leave the handwriting of the user input by hand drawing.
Therefore, an object of the present invention is to provide a technique that enables easy editing of hand-drawn characters.

In order to solve the above problems, the hand-drawn input method of the present invention is:
Detecting a trajectory of a character input by a user as a series of coordinate data;
Delimiting the series of coordinate data detected in the step based on a predetermined condition, and setting each delimited coordinate data as hand-drawn character data;
Displaying hand-drawn characters in a display area based on the hand-drawn character data;
Is executed by the computer.

The hand-drawn input device of the present invention is
An input detection unit for detecting a locus of characters input by the user as a series of coordinate data;
A character delimiter recognition unit that delimits a series of coordinate data detected by the input detection unit based on a predetermined condition, and sets each delimited coordinate data as hand-drawn character data;
A display control unit for displaying hand-drawn characters in a display area based on the hand-drawn character data.

  In order to solve the above-mentioned problem, the present invention may be a hand-drawn input program for causing a computer to execute the hand-drawn input method. Furthermore, the hand-drawn input program may be recorded on a computer-readable recording medium. The function can be provided by causing the computer to read and execute the program of the recording medium.

  Here, the computer-readable recording medium refers to a recording medium that accumulates information such as data and programs by electrical, magnetic, optical, mechanical, or chemical action and can be read from the computer. . Examples of such a recording medium that can be removed from the computer include a flexible disk, a magneto-optical disk, a CD-ROM, a CD-R / W, a DVD, a DAT, an 8 mm tape, and a memory card.

  Further, there are a hard disk, a ROM (read only memory), and the like as a recording medium fixed to the computer.

  The present invention can provide a technique that facilitates editing of hand-drawn characters.

Illustration of handwritten character input Illustration of handwritten character input Schematic configuration diagram of hand-drawn input device Illustration of handwriting input method Illustration of hand-drawn character modification process Illustration of hand-drawn character modification process Explanatory drawing of conversion example 1 mixed with kana and kanji Explanatory drawing of the conversion example 3 of a kana / kanji mix Diagram showing an example applied to spreadsheet Diagram showing an example applied to spreadsheet Explanatory diagram of input processing in write-through mode Explanatory diagram of kana-kanji conversion processing Diagram showing conversion example

  The best mode for carrying out the present invention will be described below with reference to the drawings. The configuration of the following embodiment is an exemplification, and the present invention is not limited to the configuration of the embodiment.

<Embodiment 1>
1. 1 is a computer (hand-drawing input device) that employs the hand-drawing input method of the present invention, and includes a touch panel on the surface of the display 10. When input is performed, the locus is detected and a hand-drawn character string is displayed in the display field (display area) 12. Conventionally, since this hand-drawn character string has been indicated by vector data or image data for each page, editing in character units has not been possible.

  For example, when the display column 12 is changed to be narrow, the page is reduced to narrow the width, so that hand-drawn characters may be reduced at the same rate and difficult to read. In addition, conventional hand-drawn character strings cannot be edited such as wrapping in the middle of a line to change the character padding, or changing the character sequence so that some characters are deleted and the subsequent characters are moved forward.

  On the other hand, in the hand-drawn input method according to the present embodiment, character breaks are recognized for each character and represented by stroke data or image data for each character. Therefore, the width of the display column 12 is changed as shown in FIG. Editing that changes the character wrapping position is enabled.

2. Configuration of Hand-Drawing Input Device FIG. 3 is a schematic configuration diagram of the hand-drawing input device 1 in the present embodiment. As shown in FIG. 3, the hand-drawn input device 1 includes an arithmetic processing unit 16 including a central processing unit (CPU) and a main memory in a main body, and a storage unit (flash memory) that stores data and software for arithmetic processing. 13, a computer including an input / output port 14, a communication control unit (CCU) 15 and the like.

The input / output port 14 includes a keyboard (operation buttons and the like), a pointing device, a reading device for a storage medium (memory card and the like), an input device such as a touch panel, and an output device such as the display 10 and a storage medium writing device and a speaker. Are appropriately connected.
The CCU 15 communicates with other computers via a network.

  An operating system (OS), application software (hand-drawn input program), dictionary data, and the like are installed in the storage unit 13.

  The arithmetic processing unit 16 appropriately reads out and executes the OS and application program from the storage unit 13 and performs input processing by performing arithmetic processing on information input from the input / output port 14 and the CCU 15 and information read from the storage unit 13. It also functions as a detection unit, character delimiter recognition unit, character shaping unit, character attribute recognition unit, and display control unit.

  The input detection unit detects a locus of characters input by the user into the input field 11 of the touch pad as a series of coordinate data.

  The character delimiter recognition unit delimits a series of coordinate data detected by the input detection unit based on a predetermined condition, and sets each delimited coordinate data as hand-drawn character data.

  The character shaping unit shapes the hand-drawn character data delimited by the character delimiter recognition unit into a predetermined format such as stroke data.

  The character attribute recognizing unit obtains a corresponding character code based on characteristics such as the writing order and character shape of the hand-drawn character data. For example, a character code database in which features such as handwriting character data writing order and character shape are associated with character codes is stored in the storage unit 13, and features similar to the features of handwritten character data input by the user are stored. Is extracted from the dictionary database. The extracted character code is stored in the memory or the storage unit 13 as attribute information of the hand-drawn character data.

  The display control unit displays hand-drawn characters in the display area 12 of the display 10 based on the hand-drawn character data.

3. Handwritten Input Method FIG. 4 is an explanatory diagram of a handwritten input method executed by the handwritten input device configured as described above according to a handwritten input program.
First, when a user performs hand-drawn input on the input field 11 of the touch panel, the input detection unit detects the trajectory of the input character as a series of coordinate data (step S1).

  Next, the character delimiter recognition unit delimits the series of coordinate data detected in step S1 into data for each character based on a predetermined condition, and sets each delimited coordinate data as hand-drawn character data (step S2).

  The character attribute recognizing unit obtains a corresponding character code by referring to the character code database based on the characteristics of the handwritten character data obtained in step S2, such as the writing order and the character shape, and uses it as attribute information of the handwritten character data. (Step S3). When a plurality of character code candidates are extracted, all or a predetermined number of the plurality of character codes may be used as attribute information. Furthermore, when extracting character codes, priorities may be given in descending order of the similarity of features of hand-drawn character data.

  The character attribute recognition unit compares the character code with dictionary data and performs kana-kanji conversion (step S4).

  The character attribute recognizing unit may obtain word or phrase delimiter information when the character code is compared with dictionary data.

  And a display control part displays a hand-drawn character with the predetermined format on the display column 12 of the display 10 based on the said hand-drawn character data (step S5). Here, the predetermined format includes character size, number of characters in one line, character spacing, line spacing, left justification, prohibition processing, and the like. The predetermined format may be set in advance or selected at the time of input.

  As described above, according to the present embodiment, handwritten character data can be divided and managed for each character, so that input handwritten character data can be easily edited.

4). Character Separation Processing FIG. 5 is an explanatory diagram of processing for determining the separation of input hand-drawn characters.
First, when the user draws characters on the input field 11 with a touch pen as shown in FIG. 5A, the touch panel detects a touch point (point) of the touch pen and inputs the coordinates to the arithmetic processing unit 16 sequentially. To do. That is, the movement trajectory of the contact point when the character is drawn is set as the following series of coordinate data.
(54, 58) (56, 58) (58, 58) ... (247, 68)
(249, 68) (251, 68) (253, 68) ・ ・ ・ (147, 10)
(54, 58) (56, 58) (58, 58) ... (247, 68)
(249, 68) (251, 68) (253, 68) ・ ・ ・ (147, 10)
(54, 58) (56, 58) (58, 58) ... (247, 68)
(249, 68) (251, 68) (253, 68) ・ ・ ・ (147, 10)
:
:

  Based on the coordinate data, the character delimiter recognition unit sets a rectangle 31 surrounding the hand-drawn character as shown in FIG. Here, the height of the rectangle 31 is the height at which the coordinate data can be accommodated, and the width of the rectangle 31 is determined to be a character delimiter on the condition that a continuous coordinate in the width direction is interrupted and a predetermined distance or more is left. And set the width to fit the coordinates up to this break.

Further, when the ratio of the width to the height of the rectangle 31 is smaller than a predetermined value, that is, when the rectangle 31 has a narrow vertically long shape, pattern matching with vertically long characters such as 1, I,! If there is a match, the character delimiter is confirmed. Otherwise, pattern matching with the kanji is performed together with the coordinate data in the adjacent rectangle. Set the rectangle as, and change the separator.

The character shaping unit shapes the series of coordinate data as the hand-drawn character data into a predetermined format such as stroke data.
For example, the passing point and direction of each stroke are shown in the following format.
(character
(value character code)
(width rectangle width)
(height rectangle height)
(strokes
((1st drawing 1st xy) (1st drawing 2nd xy) ... (1st drawing nth xy))
((2nd stroke 1st xy) (2nd stroke 2nd xy) ... (2nd stroke nth xy))
((3-screen 1-point xy) (3-screen 2-point xy) ... (3-screen n-th xy))
...))

In this way, the data bound by () following strokes indicates one stroke,
Each xy coordinate in parentheses indicating each stroke indicates a passing point of each stroke. Note that the xy coordinates indicating the passing point of each stroke indicate the coordinates in the rectangle with the upper left corner of each character rectangle defined by width and height as the origin.

Specifically, for example, the following data is used.
(character (value a) (width 300) (height 300) (strokes ((54 58) (249 68)) ((147 10) (145 201) (182 252)) ((224 103) (149 230) ( 82 240) (53 204) (86 149) (182 139) (240 172) (248 224) (228 250))))
Characters are displayed by drawing each stroke with a spline curve so as to pass through the passing point indicated by the xy coordinates.

5. Modification Processing As described above, in the present embodiment, since hand-drawn characters are divided into character units, it is possible to modify each character by adding attribute information to the hand-drawn character data of each character. FIG. 6 is an explanatory diagram of handwritten character modification processing.

  For example, as shown in FIG. 6A, when a user designates a modification by designating a range of characters displayed on the display 10, a tag indicating the modification is inserted before and after the character string designated by the range designation 32. To do.

FIG. 6B shows a display example when the underline 33 is added to the character “Iue” whose range is specified in the character string “Aiueo”. In this case, tags (<u> to </ u>) indicating an underline are inserted as follows.
(character (value a) (width 300) (height 300) (strokes ((54 58) (249 68)) ((147 10) (145 201) (182 252)) ((224 103) (149 230) ( 82 240) (53 204) (86 149) (182 139) (240 172) (248 224) (228 250))))
<u>
(character (value) (width 300) (height 300) (strokes ((56 63) (43 213) (67 259) (94 243)) ((213 66) (231 171) (208 217))))
(character (value) (width 300) (height 300) (strokes ((102 35) (187 45)) ((73 121) (167 105) (206 139) (198 211) (135 275))))
(character (value e) (width 300) (height 300) (strokes ((140 19) (162 38)) ((62 105) (208 100) (51 263) (128 205) (188 268) (260 252 ))))
</ u>
(character (value O) (width 300) (height 300) (strokes ((64 94) (240 98)) ((148
35) (159 129) (140 199) (105 247) (64 228) (101 161) (192 161) (222 223) (189 257)) ((223 49) (253 89))))

  In addition to the underline, modifications such as strikethrough, ruled line, shading, bold, italic, right justification, left justification, centering, and color designation can be performed in the same manner.

  In addition, when an underline is added to a plurality of characters as shown in FIG. 6B, it is preferable to display not only each character but also a space between characters. The continuous modification between the characters is the same for the strikethrough, ruled line, and shading.

6). Conversion Process of Words Mixed with Kana-Kanji Character attribute recognition unit can convert to kanji as shown in step S4 of FIG. 4 when the input character is a kana.

  It should be noted that input using the keyboard is a process that always inputs kana and converts it to kanji, so refer to the dictionary that associates kana and kanji for words and uses kana for words as indexes. The conversion is done by extracting the kanji to be.

  On the other hand, in this embodiment, since characters are input by handwriting, they can be input in kanji, and input in which kanji and kana are mixed may be performed.

  For example, in the case of inputting “minutes”, there may be input of “giki minutes”, “gioki roku”, and “jiji memo”. In this case, the reading kana is only a part of the word, and in the conventional dictionary in which the reading kana and the kanji of the word correspond to each other, the index does not match and the word cannot be searched, so that the conversion cannot be performed efficiently.

  Therefore, in the present embodiment, the following processing is adopted in order to efficiently convert a word mixed with kana / kanji characters. The conversion unit in the case of performing this conversion process may be a configuration in which hand-drawn characters input in the input field 11 are converted at predetermined time intervals, or the user selects a conversion button (not shown). A configuration may be employed in which hand-drawn characters input in the input field 11 are converted when a conversion instruction is received by operation.

(6-1) Conversion example 1
FIG. 7 is an explanatory diagram of a conversion example 1 in which kana / kanji characters are mixed.
It is determined whether or not the Chinese character is included in the character code obtained in step S3 of FIG. 4 (step S21). If the Chinese character is included, the character code is reverse-converted with reference to the Chinese character reading dictionary, and the character code is read. A pseudonym is obtained (step S22). The kanji reading dictionary is dictionary data in which kanji and their readings are associated with each other, and is stored in the storage unit 13.

  Next, of the kanji readings obtained in step S22, an appropriate combination with the preceding and following characters is selected (step S23).

  For example, if the input character is “gijiroku”, it is determined in step S21 that the kanji “thing” is included, and “ji” “ko” is extracted as the reading kana of this kanji “thing”. This combination becomes “giji”, “gikoto”, “jirok”, and “kotoroku”.

  The character attribute recognition unit selects a combination of the reading kana that matches the index of the kana-kanji conversion dictionary. That is, “Gigi” that makes sense as a word is selected.

Then, the character attribute recognition unit converts “gijiroku” into kana-kanji using the reading kana selected in step S23 (step S24).

  As described above, according to this example, even if a mixed word of kana / kanji is input, kana / kanji conversion is performed in units of words after reverse conversion of kanji into kana, so that appropriate conversion can be performed.

  The kanji reading dictionary may use data for single kanji conversion of the kana-kanji conversion dictionary. Since this single kanji conversion data is for searching for a single kanji character using the reading of a single kanji character as an index, in this example, this is used in reverse to search for a reading kana character using a single kanji character as an index. It ’s fine. However, in order to perform the inverse transformation of this example, “Roku” like “Roppongi”, “Rotto” as “Roku”, “Pon” as “Pon”, “Tree” as “gi”, etc. Since there are some which become different kana readings, such reading kana for reverse conversion may be added to the data for single kanji conversion and used as a kanji reading dictionary. In this case, when converting kana-kanji to single kanji, conversion is performed using data for single-kanji conversion, and for reverse conversion, data for single-kanji conversion and reading kana for reverse conversion are used. Switching may be performed to perform conversion. Thereby, it is possible to prevent the reading kana for reverse conversion from becoming noise during kana-kanji conversion.

(6-2) Conversion example 2
As a conversion example 2, first, in order to convert words mixed with kana-kanji, a kana-kanji mixed dictionary in which kana-kanji mixed words are associated with converted kanji is created in advance and stored in the storage unit 13.

  For example, kana-kanji mixed dictionaries are created by associating kanji-kanji mixed words such as “gijiroku”, “gijiroku”, “geijiroku”, and “meeting roku” with the converted kanji “minutes”.

  Then, when a kana-kanji mixed word is input, the corresponding kanji is extracted with reference to the kana-kanji mixed dictionary.

(6-3) Conversion example 3
This example shows an example in which a dictionary for kana-kanji conversion can be used for conversion of words mixed with kana-kanji.

First, a “delimited dictionary” in which delimiter information for each kanji character is given to the reading kana in the dictionary for kana-kanji conversion is created in advance and stored in the storage unit 13.
For example, the following dictionary is created.
Candidate conversion candidate
-------------------------
→ Gap → Conversion → Learning Roppongi → Roppongi
-------------------------

  It should be noted that the index of the reading kana part can be searched with the break of each character as the head. That is, in the above example, conversion, learning, and Roppongi can be searched even when searching for “kan”, “shu”, and “pongi”.

FIG. 8 is an explanatory diagram of a conversion example 3 in which kana / kanji characters are mixed.
It is determined whether or not the character code obtained in step S3 of FIG. 4 includes kanji (step S31). If kanji is included, the delimited dictionary is referred to and the partial kana matches the reading kana of the word. A word to be searched is searched (step S32).

  Next, it is determined whether or not the word obtained in step S32 matches the kanji part of the mixed word of kana and kanji (step S33), the matching word is displayed as a conversion candidate, and the user is prompted to select (step). S34).

Then, the word selected by the user is determined as the converted word (step S35).
For example, if you enter "Change",
1-a) The first kanji character is skipped, and the second and subsequent hiragana characters are searched.
1-b) Search for the second and subsequent characters in the dictionary.
1-c) If the readings match, it is checked whether the first Kanji character matches, and only those that match are displayed as conversion candidates.
1-d) Confirm the word selected by the user as the conversion result.

2) If "Change" is entered,
2-a) Perform a search corresponding to "hen" in the normal Kana-Kanji conversion process.
2-b) If the readings match, it is checked whether the second Kanji character matches, and only those that match are displayed as conversion candidates.
2-c) Confirm the word selected by the user as the conversion result.

  According to this example, a kana-kanji mixed word can be appropriately converted, and a dictionary for kana-kanji conversion and a dictionary for converting a kana-kanji mixed word can be used together, thereby simplifying the configuration.

  The above conversion processes may be used in combination as appropriate. For example, the conversion process of the conversion example 2 may be performed, and the conversion process of the conversion example 1 or the conversion example 3 may be performed on a word that cannot be converted by this process.

  When a character hand-drawn in kana is converted into kanji by the above conversion processing, the character attribute recognition unit me (inputs) the character code of the converted kanji to the arithmetic processing unit 16, and the display control unit A character corresponding to the character code is displayed on the display 10. Here, the display control unit prompts the user to input a kanji by re-inputting the kanji by hand drawing, and when the user inputs the kanji on the display 10 by hand, the display control unit Is displayed in the display area 12 instead of the handwritten character data of the kana.

  In addition, the display control unit does not prompt the user to input again as described above, and causes the display area 12 to display the character using an existing font such as Mincho or Gothic according to the character code. Alternatively, handwritten character data may be registered in advance as a handwritten character dictionary, and handwritten character data of kanji corresponding to the character code may be read and displayed in the display area 12 instead of the handwritten character data of the kana. good.

7). Application to Spreadsheet Software FIG. 9 is an example in which the hand-drawn input of the present embodiment is applied to spreadsheet software.
As shown in FIG. 9, in this example, each cell is input by hand drawing. Each cell is displayed with the input hand-drawn character, and the spreadsheet is performed according to the character code of the attribute information. That is, a numeric character code is added as attribute information to the hand-drawn character data of the cells to be aggregated.
This makes it possible to perform spreadsheets even when the numerical values in the table are hand-drawn characters.
When hand-drawn input is applied to spreadsheet software, the display mode may be changed to switch between hand-drawn characters and characters indicated by each character code. In the example of FIG. 10, an example is shown in which both hand-drawn characters and characters indicated by the character codes are displayed simultaneously in each cell. This makes it easy for the user to visually recognize the correspondence between hand-drawn characters and character codes.

<Embodiment 2>
In the second embodiment, a processing example in which a series of hand-drawn character data stored on a storage medium such as the main memory or the storage unit 13 is collectively converted into kana-kanji characters will be described. Since the configuration other than this process is the same as that of the first embodiment, the same elements are denoted by the same reference numerals and the description thereof is omitted.

11 and 12 are flowcharts showing a processing example of the second embodiment, and FIG. 13 is a diagram showing a conversion example.
First, as shown in FIG. 11, when the user performs hand-drawn input on the input field 11 of the touch panel, the input detection unit detects the trajectory of the input character as a series of coordinate data (step S41). .

  Next, the character delimiter recognition unit delimits the series of coordinate data detected in step S1 into data for each character based on a predetermined condition, and sets each delimited coordinate data as hand-drawn character data (step S42). The data is recorded on a storage medium such as the unit 13 (step S43).

  As described above, in the second embodiment, handwritten input characters are input without being sequentially converted, and handwritten character data is recorded, so that the input operation can be input without interruption for kanji conversion. Can continue, i.e. continue to write. Hereinafter, this is also referred to as writing.

  Input data 41 in FIG. 13 is data input by handwriting in this writing mode. As shown in FIG. 13, when input is performed in the writing mode, the kanji and hiragana characters are input and recorded as handwritten character data.

  When taking a memo at a meeting or a meeting, it is desirable to input in the writing-in mode, because if the input characters are converted one by one, it will interfere with the meeting or the meeting.

  Then, after a meeting or a meeting, conversion may be performed in a lump when Kanji conversion time is available. FIG. 12 is a flowchart of a process for performing conversion later.

  Thereafter, when the user selects conversion, the computer 1 first obtains handwritten character data recorded in the writing mode of FIG. 11 from the recording medium (step S51). The acquisition of the handwritten character data is, for example, a process in which the CPU reads the handwritten character data from the main memory, and the process is a process in which the CPU reads the handwritten character data from the storage unit 13 via the main memory.

  Next, the character attribute recognition unit obtains a corresponding character code by referring to the character code database based on the characteristics of the handwritten character data acquired in step S51, such as the writing order and the character shape, and attribute information of the handwritten character data. (Step S52).

  Further, the character attribute recognition unit divides the hand-drawn character data into conversion units for converting kana-kanji characters, and obtains data that is the earliest conversion unit (step S53). For example, data of a predetermined number of characters is extracted from the beginning and compared with a dictionary. In addition, hand-drawn character data is delimited by punctuation marks such as parentheses, punctuation marks, question marks, and particles, and is used as a conversion unit. Furthermore, morphological analysis may be performed based on the character code of the hand-drawn character data, and divided into clause units, and each clause may be used as a conversion unit.

Further, the character attribute recognition unit performs kana-kanji conversion by comparing handwritten character data in conversion units with dictionary data (step S54). The kana-kanji conversion in step S54 is the same as step S4 in the first embodiment. That is, handwritten character data mixed with kana and kanji is converted to kanji. Then, the determination of the conversion unit and the kana-kanji conversion process (steps S53 to S54) are repeated, and the process ends when the last conversion unit kana-kanji conversion is completed (step S55).

  Reference numeral 42 in FIG. 12 shows an example of data after conversion. For example, according to the above-described conversion example 1, the input data 41 “Kankan Seido” is used as a conversion unit, and the reading of the kanji character “Kan” included in this conversion unit is obtained from the dictionary as “hen”. It searches the kana-kanji conversion dictionary for “seido” as a search target and converts it to “conversion accuracy”. If “conversion accuracy” is not registered as an idiom, conversion may be performed separately for “conversion” and “accuracy”. Moreover, you may convert by not only the above-mentioned conversion example 1 but the conversion example 2, the conversion example 3, or these combination.

  As described above, according to the second embodiment, handwritten character data input in the writing mode can be converted later. Therefore, handwritten input can be made like taking notes on paper at meetings and meetings, and handwritten input data can be converted to kana-kanji after a certain amount of time and printed, making it convenient for handwritten input. improves.

<Others>
The present invention is not limited to the illustrated examples described above, and various modifications can be made without departing from the scope of the present invention.
For example, the same effects as those of the above-described embodiment can be obtained even with the configurations described below. These components can be combined as much as possible.

(Appendix 1)
Detecting a trajectory of a character input by a user as a series of coordinate data;
Delimiting the series of coordinate data detected in the step based on a predetermined condition, and setting each delimited coordinate data as hand-drawn character data;
Displaying hand-drawn characters in a display area based on the hand-drawn character data;
A computer-implemented hand-drawn input method.

(Appendix 2)
The handwriting input method according to appendix 1, wherein the handwritten characters are arranged in the display area based on predetermined format information, respectively.

(Appendix 3)
The hand-drawn input according to appendix 1 or 2, wherein character recognition of the hand-drawn character data is performed, a character code of the hand-drawn character data is specified, and each hand-drawn character data is associated with the character code and stored in the storage unit Method.

(Appendix 4)
The handwritten input method according to supplementary note 3, wherein the successive character codes are compared with dictionary data to obtain word or phrase delimiter information and add to the format information.

(Appendix 5)
The handwriting input method according to appendix 4, wherein when a character code is input, a step of reading out and outputting handwritten character data corresponding to the character code from a storage unit is executed.

(Appendix 6)
Underline, strikethrough, ruled line, shaded, bold, italic, right justified, left justified,
The hand-drawn input method according to any one of appendices 1 to 5, wherein attribute information for performing at least one modification of centering is added to the hand-drawn character.

(Appendix 7)
The handwriting input method according to any one of appendices 1 to 6, wherein the display area is a tabular input field.

(Appendix 8)
Determining whether the hand-drawn character data includes kana and kanji; and
A supplementary note 1 that executes a step of converting a combination of the kana and the kana obtained by reversely converting the kanji into kanji with reference to the kana-kanji conversion dictionary when the hand-drawn character data includes kana and kanji. 8. The handwriting input method according to any one of items 1 to 7.

(Appendix 9)
Determining whether the hand-drawn character data includes words mixed with kana and kanji; and
If the hand-drawn character data includes words mixed with kana and kanji, refer to the kana-kanji mixed dictionary that associates kana-kanji mixed words and words with kana as kanji, and mixes kana-kanji mixed words 9. The hand-drawn input method according to any one of appendices 1 to 8, wherein a step of converting to a corresponding kanji word is executed.

(Appendix 10)
Determining whether the hand-drawn character data includes words mixed with kana and kanji; and
When the hand-drawn character data includes words mixed with kana-kanji characters, a delimited dictionary that associates kanji words as a conversion result with an index that divides the reading kana of the words for each character of the kanji The handwritten input method according to any one of appendices 1 to 9, wherein a step of converting a word mixed with kana and kanji into a word in which the kana portion of the word matches the index is executed.

(Appendix 11)
Detecting a trajectory of a character input by a user as a series of coordinate data;
Delimiting the series of coordinate data detected in the step based on a predetermined condition, and setting each delimited coordinate data as hand-drawn character data;
Displaying hand-drawn characters in a display area based on the hand-drawn character data;
Hand-drawn input program to make a computer execute.

(Appendix 12)
The hand-drawn input program according to appendix 11, wherein the hand-drawn characters are arranged in the display area based on predetermined format information.

(Appendix 13)
The hand-drawn input according to appendix 11 or 12, wherein character recognition of the hand-drawn character data is performed, a character code of the hand-drawn character data is specified, and each hand-drawn character data is associated with the character code and stored in the storage unit program.

(Appendix 14)
14. The handwritten input program according to appendix 13, wherein the successive character codes are compared with dictionary data to obtain word or phrase break information and add to the format information.

(Appendix 15)
15. The handwriting input program according to appendix 14, which executes a step of reading out and outputting handwritten character data corresponding to the character code from a storage unit when a character code is input.

(Appendix 16)
Any one of appendices 11 to 15, wherein attribute information for performing at least one modification of underline, strikethrough, ruled line, shaded, bold, italic, right-justified, left-justified, and centering is added to the hand-drawn character The handwritten input program described.

(Appendix 17)
The handwritten input program according to any one of appendices 11 to 16, wherein the display area is a tabular input field.

(Appendix 18)
Determining whether the hand-drawn character data includes kana and kanji; and
And a step of converting a combination of the kana and the kana obtained by inversely converting the kanji into kanji with reference to the kana-kanji conversion dictionary when the hand-drawn character data includes kana and kanji. 18. The hand-drawn input program according to any one of items 17 to 17.

(Appendix 19)
Determining whether the hand-drawn character data includes words mixed with kana and kanji; and
If the hand-drawn character data includes words mixed with kana and kanji, refer to the kana-kanji mixed dictionary that associates kana-kanji mixed words and words with kana as kanji, and mixes kana-kanji mixed words 19. The hand-drawn input program according to any one of appendices 11 to 18, which executes a step of converting to a corresponding kanji word.

(Appendix 20)
Determining whether the hand-drawn character data includes words mixed with kana and kanji; and
When the hand-drawn character data includes words mixed with kana-kanji characters, a delimited dictionary that associates kanji words as a conversion result with an index that divides the reading kana of the words for each character of the kanji The hand-drawn input program according to any one of appendices 11 to 19, which executes a step of converting a kana-kanji mixed word into a word in which the kana part of the word matches the index.

(Appendix 21)
An input detection unit for detecting a locus of characters input by the user as a series of coordinate data;
A character delimiter recognition unit that delimits a series of coordinate data detected by the input detection unit based on a predetermined condition, and sets each delimited coordinate data as hand-drawn character data;
A display control unit for displaying hand-drawn characters in a display area based on the hand-drawn character data;
Hand-drawn input device equipped with.

(Appendix 22)
The hand-drawn input device according to attachment 21, wherein the hand-drawn characters are arranged in the display area based on predetermined format information.

(Appendix 23)
The supplementary note 21 or 22, further comprising a character attribute recognition unit that performs character recognition of the hand-drawn character data, specifies a character code of the hand-drawn character data, and associates and stores the hand-drawn character data and the character code in the storage unit. Hand drawn input device.

(Appendix 24)
24. The handwritten input device according to appendix 23, wherein the character attribute recognition unit compares the continuous character code with dictionary data to obtain word or phrase break information and adds it to the format information.

(Appendix 25)
25. The handwriting input device according to appendix 24, wherein, when a character code is input, the display control unit reads out and outputs handwritten character data corresponding to the character code from a storage unit.

(Appendix 26)
Appendices 21 to 21 in which the character attribute recognition unit adds attribute information for performing at least one modification of underline, strikethrough, ruled line, hatching, bold, italic, right justification, left justification, and centering to the hand-drawn character. 26. The hand-drawn input device according to any one of 25.

(Appendix 27)
27. The handwritten input device according to any one of appendices 21 to 26, wherein the display area is a tabular input field.

(Appendix 28)
The character attribute recognition unit
Determine whether the hand-drawn character data includes kana and kanji,
Any one of appendices 21 to 27, wherein when the hand-drawn character data includes kana and kanji, a combination of the kana and kana obtained by reversely converting the kanji is converted to kanji by referring to the kana-kanji conversion dictionary The hand-drawn input device according to item.

(Appendix 29)
The character attribute recognition unit
It is determined whether the hand-drawn character data includes words mixed with kana and kanji,
If the hand-drawn character data includes words mixed with kana and kanji, refer to the kana-kanji mixed dictionary that associates kana-kanji mixed words and words with kana as kanji, and mixes kana-kanji mixed words 29. The hand-drawn input device according to any one of appendices 21 to 28, wherein the handwriting is converted into a corresponding kanji word.

(Appendix 30)
The character attribute recognition unit
It is determined whether the hand-drawn character data includes words mixed with kana and kanji,
When the hand-drawn character data includes words mixed with kana-kanji characters, a delimited dictionary that associates kanji words as a conversion result with an index that divides the reading kana of the words for each character of the kanji The handwritten input device according to any one of appendices 21 to 29, wherein the kana-kanji mixed word is converted to a word in which the kana part of the word matches the index.

1 Hand-drawn input device 16 Arithmetic processing unit 13 Storage unit (hard disk)
14 I / O port 15 Communication control unit

Claims (12)

Detecting a trajectory of a character input by a user as a series of coordinate data;
Delimiting the series of coordinate data detected in the step based on a predetermined condition, and setting each delimited coordinate data as hand-drawn character data;
Displaying hand-drawn characters in a display area based on the hand-drawn character data;
A computer-implemented hand-drawn input method.   The hand-drawing input method according to claim 1, wherein the hand-drawn characters are arranged in the display area based on predetermined format information.   The hand drawing according to claim 1 or 2, wherein character recognition of the hand drawn character data is performed, a character code of the hand drawn character data is specified, and each hand drawn character data and a character code are associated with each other and stored in a storage unit. input method.   4. The hand-drawn input method according to claim 3, wherein the step of comparing the consecutive character codes with dictionary data to obtain word or phrase break information and adding it to the format information is performed.   The hand-drawing input method according to claim 4, wherein when a character code is input, a step of reading out and outputting hand-drawn character data corresponding to the character code from a storage unit is performed.   The attribute information for performing at least one modification of underline, strikethrough, ruled line, shading, bold, italic, right justification, left justification, and centering is added to the hand-drawn character. The hand-drawn input method described in 1.   The hand-drawn input method according to any one of claims 1 to 6, wherein the display area is a tabular input field. Determining whether the hand-drawn character data includes kana and kanji; and
A step of converting a combination of the kana and the kana obtained by reversely converting the kanji into a kanji by referring to the kana-kanji conversion dictionary when the hand-drawn character data includes kana and kanji. 8. The hand-drawn input method according to any one of 1 to 7. Determining whether the hand-drawn character data includes words mixed with kana and kanji; and
If the hand-drawn character data includes words mixed with kana and kanji, refer to the kana-kanji mixed dictionary that associates kana-kanji mixed words and words with kana as kanji, and mixes kana-kanji mixed words The hand-drawing input method according to claim 1, wherein a step of converting the word into a corresponding kanji word is executed. Determining whether the hand-drawn character data includes words mixed with kana and kanji; and
When the hand-drawn character data includes words mixed with kana-kanji characters, a delimited dictionary that associates kanji words as a conversion result with an index that divides the reading kana of the words for each character of the kanji The handwritten input method according to any one of claims 1 to 9, wherein a step of converting a kana-kanji mixed word into a word in which the kana part of the word matches the index is executed. Detecting a trajectory of a character input by a user as a series of coordinate data;
Delimiting the series of coordinate data detected in the step based on a predetermined condition, and setting each delimited coordinate data as hand-drawn character data;
Displaying hand-drawn characters in a display area based on the hand-drawn character data;
Hand-drawn input program to make a computer execute. An input detection unit for detecting a locus of characters input by the user as a series of coordinate data;
A character delimiter recognition unit that delimits a series of coordinate data detected by the input detection unit based on a predetermined condition, and sets each delimited coordinate data as hand-drawn character data;
A display control unit for displaying hand-drawn characters in a display area based on the hand-drawn character data;
Hand-drawn input device equipped with.

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