JPH11154198A - Handwriting input device and storage medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate handwriting input of a Chinese character (KANJI) which is not remembered well by a user. SOLUTION: Concerning this handwriting input device, a storage device 1 stores a character recognition dictionary in which the form of a character and a character code are correspondently registered. Besides, the storage device 1 stores a radical recognition dictionary in which the form of the radical of KANJI and the character code of the radical are correspondently registered. Further, the storage device 1 stores a KANJI radical table and a KANJI table in which the character code of the radical and the character code of KANJI having the said radical are made correspondent. When the radical is inputted by handwriting, the KANJI having the radical inputted by handwriting are displayed on a list. By selecting the KANJI to be inputted out of the displayed KANJI, the KANJI is inputted. Namely, it is not necessary to input the number of strokes of the radical, to display the radicals having this number of strokes and to select one radical out of the displayed radicals, and it is enough only to directly input the radical by handwriting. Thus, the input using the radical at the handwriting input device can be facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handwriting input device for performing handwriting input of characters.

[0002]

2. Description of the Related Art In general, there is known a method of inputting characters by handwriting on a position detecting tablet with a pen or the like. Conventionally, as such a handwriting input device, for example, there is a device described in Japanese Patent Application No. 7-163342 filed by the present applicant. In this conventional handwriting input device, for example, as a method of inputting a kanji that cannot be handwritten due to forgetting how to write, a method of converting characters input by kana into kanji, that is, inputting by so-called kana-kanji conversion, A method of selecting a radical from an index and selectively inputting a desired kanji from a kanji list corresponding to the radical has been used.

[0003]

By the way, in the handwriting input, basically, it takes time and effort to input characters as compared with the input from the keyboard. Therefore, in the input method using the kana-kanji conversion, in many cases, a plurality of kana are input corresponding to one kanji, and the number of characters to be hand-written is increased, so that the work required for the hand-written input is increased and the hand-written input is required. Since the time is long and there are a plurality of kanji for the same reading, it is necessary to select and determine the kanji to be input from the candidate kanji.

In a conventional input method using a radical index, in an electronic device having a handwriting input mechanism, first,
When the operator counts and inputs the number of strokes of the kanji to be input, a plurality of radicals having the input number of strokes are displayed on the display screen of the electronic device. Select and specify the desired radical from a plurality of radicals.
This causes a plurality of kanji having the designated radical to be displayed on the display screen, and the operator selects and specifies a kanji to be input from the plurality of displayed kanji. As a result, kanji is input, but as described above, inputting one kanji requires input of the number of strokes of the radical and multiple selection / designation operations. In addition, the possibility of erroneous operation increases due to the large number of operations.

On the other hand, in the case where a kanji having a large number of strokes is input by handwriting, it is difficult to increase the recognition rate of the handwritten character, and it is needless to say that the input of a kanji having a large number of strokes requires time and effort. Furthermore, if the kanji with many strokes input by handwriting is not recognized, it may be necessary to input again by handwriting. In this case, it takes time and effort to repeatedly input kanji with many strokes.

SUMMARY OF THE INVENTION An object of the present invention is to make it possible to input kanji by hand-writing a radical, thereby simplifying the input operation and shortening the input time when inputting kanji by hand.

[0007]

According to a first aspect of the present invention, there is provided a handwriting input apparatus comprising: a coordinate position input means capable of inputting characters by hand; a display means capable of displaying characters; and the coordinate position input means. Based on the trajectory of the input handwritten character, a radical corresponding to the trajectory is determined, and a radical recognition means for outputting information indicating the determined radical, and information indicated by the information output from the radical recognition means. Radical kanji conversion means for determining a kanji having a radical to be obtained and outputting information indicating the determined kanji, and a kanji display for displaying the kanji indicated by the information output from the radical kanji conversion means on the display means Means, selected kanji output means for outputting information indicating the selected kanji when any kanji is selected from the kanji displayed on the display means, and storing information output from the selected kanji output means. Input character memory Characterized by comprising a stage.

According to the above arrangement, when the data of the trajectory is input as a handwritten character from the coordinate position input means, the radical recognition means determines the radical of the kanji corresponding to the trajectory based on the trajectory, Next, radical kanji conversion means determines a kanji having the determined radical. Next, the kanji display means:
Since there are basically a plurality of kanji having the same radical, the plurality of obtained kanji are displayed on the display means. When displaying, it is not necessary to display the required kanji at once,
The display may be divided into a plurality of pages, an arbitrary number of kanji may be displayed at a time, and the remaining kanji may be sequentially displayed by a feed operation or the like.

Next, for example, when one kanji is selected from the kanji displayed by the coordinate position input means or other input means, the selected kanji output means stores the information indicating the selected kanji in the input character storage means. To memorize. That is, a state is entered in which kanji has been input. In this way, if a kanji is to be input, the radicals of the kanji to be input can be input by hand, so that after inputting the number of strokes of the radical as in the related art, a plurality of radicals having the number of strokes are input. There is no need to perform an operation to select a radical. That is, basically, it is sufficient to input the radical by hand instead of such two operations, and the number of operations can be reduced as compared with the conventional kanji input method using the radical index. .

[0010] Basically, when inputting one kanji, it is sufficient to input one radical by hand, so that the number of characters to be input by handwriting does not increase unlike the input method using kana-kanji conversion. Thus, the number of input characters can be reduced as compared with the kana-kanji conversion. Also, when inputting a kanji with many strokes, instead of inputting all parts of the kanji, only one radical of the kanji needs to be input, and the number of operations increases, but the time required for handwriting can be reduced. In addition, when inputting kanji with a large number of strokes, for which it is difficult to increase the recognition rate, there is no need to re-enter the kanji with a large number of strokes without recognizing handwritten characters. Can be simplified. As described above, according to the handwriting input device, the input operation can be simplified and the input time can be reduced as compared with the conventional handwriting input device.

According to a second aspect of the present invention, there is provided a handwriting input device, wherein a trajectory pattern inputtable from the coordinate position input means and a character code indicating a kanji radical are registered in association with each other. And a kanji radical storage device storing a character code of a kanji having a radical indicated by the character code corresponding to the character code of each radical, and a kanji radical storage device storing a character code corresponding to each character code. And display character storage means for storing a display character pattern of a character indicated by the character code, wherein the radical recognition means is based on a trajectory of a handwritten character input by the coordinate position input means,
A trajectory pattern similar to the trajectory is searched from the radical recognition dictionary, and a character code of the radical corresponding to the trajectory pattern searched from the radical recognition dictionary is obtained and output. The means obtains and outputs a kanji character code corresponding to the radical character code output from the radical recognition means from the kanji radical storage means, and outputs the kanji display means from the radical kanji conversion means. A character pattern corresponding to the output character code is read from the display character storage means and output to the display means.

According to the above arrangement, the radical recognition means obtains a radical from the handwritten input data based on the radical recognition dictionary, and the radical kanji conversion means converts the radical obtained from the kanji radical table. The kanji having the kanji has
Data of the obtained display character pattern (for example, font) of kanji is obtained from the display character storage means, and a list of kanji is displayed on the display means based on the data. Therefore, basically, instead of a character recognition dictionary in which ordinary characters used when recognizing characters by handwriting are registered, a radical recognition dictionary in which radicals that are a part of Chinese characters are registered is used. By doing so, the radical can be recognized. Therefore, if a normal character recognition dictionary and a radical recognition dictionary of the present invention are provided, by switching the dictionary, it is possible to easily switch between handwriting input based on normal character recognition and handwriting input based on radicals. Can be.

According to a third aspect of the present invention, in the handwriting input device, when the radical recognition means determines a plurality of radicals corresponding to the trajectory input by the coordinate position input means, a plurality of copies are obtained. Radical display means for outputting information indicating the neck, and a radical display means for displaying the radical output from the radical recognition means on the display means; and an arbitrary part from the radical displayed on the display means. When a neck is selected, comprises a selected radical output means for outputting information indicating the selected radical,
The radical kanji conversion means obtains a kanji having a radical indicated by the information output from the selected radical output means, and outputs information indicating the kanji.

[0014] According to the above arrangement, when information indicating a plurality of radicals is output from the radical recognition means after inputting the radical by hand, the radical display means displays the plurality of radicals. It will be displayed on the means. When displaying,
It is not necessary to display the determined radicals at once, and it is also possible to display the remaining radicals sequentially by dividing the page into a plurality of pages, displaying an arbitrary number of radicals at once, and performing a feed operation or the like. .

[0015] For example, when one radical is selected from a plurality of radicals displayed by the coordinate position input means or other input means, the selected radical output means indicates the selected radical. The information is output to the radical kanji conversion means. The radical kanji conversion means obtains the kanji having the radical indicated in the information and outputs the information indicating the kanji to the kanji display means. The subsequent processing is performed in the same manner as in the handwriting input device according to the first aspect.

By doing so, the radical recognition means
Since the radical corresponding to the data of the locus input by handwriting is not specified to one radical from the beginning, even if the shape of the radical is not accurately input by handwriting, it is included in a plurality of candidate radicals. Is more likely to be
The possibility of re-input due to erroneous recognition becomes extremely low, and even if one operation for selecting one radical from a plurality of radicals is added, it is possible to substantially simplify the operation. In displaying the radicals on the display means, it is preferable to store the radical patterns as character patterns in the display character storage means according to claim 2 in correspondence with the character codes indicating the radicals, The radical display means preferably reads the radical pattern from the display character storage means in correspondence with the character code.

According to a fourth aspect of the present invention, in the handwriting input device, when the radical recognition means determines a plurality of radicals corresponding to the trajectory input by the coordinate position input means, a plurality of copies are obtained. When the information indicating a plurality of radicals is output from the radical recognition means, the radical kanji conversion means has at least one of the radicals. A kanji is obtained, and information indicating the obtained kanji is output.

According to the above arrangement, when information indicating a plurality of radicals is output from the radical recognition means after the radicals are input by hand, the radical kanji conversion means causes the radical kanji conversion means to output the radicals. Kanji with at least one is required. That is, for each of the determined radicals, a kanji having the radical is determined. The kanji obtained in this manner is displayed on the display means in the same manner as in claim 1, and is processed in the same manner thereafter.

Therefore, as in the case of the third aspect, even if the shape of the radical is not accurately input by handwriting input, it is highly likely that the radical is included in a plurality of candidate radicals, and the shape of the radical due to incorrect recognition is high. The possibility of input becomes extremely low,
Since it is not necessary to select one radical from a plurality of radicals as in the case of claim 3, the kanji input operation can be further simplified.

According to a fifth aspect of the present invention, in the handwriting input device, when the radical recognition means determines a plurality of radicals corresponding to the trajectory input by the coordinate position input means, a plurality of parts are obtained. In addition to outputting information indicating a neck, information indicating the priority of each radical to be output is output, and the radical kanji conversion means outputs information indicating a plurality of radicals from the radical recognition means. Is output, the kanji having the radical with the highest priority is obtained, and information indicating the obtained kanji is output.

According to the above configuration, as in the case of the third aspect, even if the shape of the radical is not accurately input by handwriting, it is highly likely that the radical is included in a plurality of candidate radicals. The possibility of re-input due to erroneous recognition becomes extremely low, and the operator does not select one of a plurality of determined radicals as in the case of claim 3, but outputs the radical from the radical recognition means. Since the selection is made according to the priority order, the operation can be simplified.

The determined priority of the radicals is determined by, for example, the input frequency of each radical or the degree of similarity between the shape of the trajectory and the shape of the radical input from the coordinate position input device. It can be decided. In addition, there is a possibility that the first-ranked radical output from the radical recognition means and the radical actually input are different, and in this case, if the radical is to be handwritten again, Since the operation cannot be simplified, for example, the radicals required by the radical recognition means are displayed or sequentially displayed in a state where at least the radical with the highest priority is known, and the radical with the highest priority is displayed. A process for confirming whether a neck is a radical to be input or not, and if a radical having the highest priority is not a radical to be input, a portion to be input from a radical other than the first priority It is preferable to perform a process of selecting a neck.

In the handwriting input device according to a sixth aspect of the present invention, the radical recognition means obtains a radical corresponding to the trajectory based on the trajectory of the handwritten character input by the coordinate position input means. If not, all the radicals are displayed on the display means to display all of the previously registered radicals, and when any radical is selected from the radicals displayed on the display means, the selected Selection radical output means for outputting information indicating a neck, wherein the radical kanji conversion means converts the information output from the selected radical output means in place of the radical determined by the radical recognition means. A kanji having the indicated radical is obtained, and information indicating the kanji is output.

According to the above arrangement, when the trajectory of the handwritten character is not recognized as a radical by the radical recognition means,
Instead of re-inputting the handwritten characters, all the radicals registered in advance are displayed on the display means by the all-radical display means so that the operator can select them. Then, the selected radical output means outputs information indicating the selected radical to the radical kanji conversion means, and thereafter the same processing as in claim 1 is performed.

Therefore, when the shape of the radical is not clear and the correct radical cannot be input, it is not necessary to repeat re-input by handwriting until the correct shape of the radical can be input. Since the kanji can be input by selecting the desired radical, it is possible to reduce the labor required for the substantial input operation. When displaying all radicals registered in advance by the all radical display means, all patterns of radicals generally used in the display character storage means correspond to the character codes indicating the radicals as character patterns. It is preferable to register it.

According to a seventh aspect of the present invention, there is provided a handwriting input apparatus, comprising: a radical input mode for obtaining a kanji to be input from a handwritten input of a radical; Switching means for switching between modes, and in the character input mode, a character corresponding to the trajectory is obtained based on the trajectory of the handwritten character input by the coordinate position input means, and information indicating the obtained character is stored in the input character storage. Character recognition means for storing in the means, the character recognition means recognizes the trajectory input by handwriting in the character input mode, and the radical recognition means performs handwriting input in the radical input mode. Recognition of the trajectory is performed.

According to the above arrangement, for kanji characters that have a relatively small number of strokes that are kanji characters that are correctly memorized, the kanji characters are directly input by handwriting using the character recognition means, and kanji characters that do not memorize the grammar correctly or are not input. For kanji with many strokes, operability can be improved by inputting kanji from a handwritten radical using radical recognition means. In order for the character recognition means to recognize a kanji, for example, a character recognition dictionary in which a locus pattern that can be input from the coordinate position input means and a character code indicating a character such as a kanji are registered is associated. It is preferable that the character recognition unit recognizes the kanji using the character recognition dictionary.

In switching between kanji recognition and radical recognition, the character recognition means and the radical recognition means are substantially the same character recognition means, and the character recognition means refers to the radical recognition dictionary. In that case, it acts as a radical recognition means,
When the character recognition unit refers to the character recognition dictionary, it may function as a character recognition unit. At this time, the switching means determines whether the recognition dictionary referred to by the character recognition means is a radical recognition dictionary or a character recognition dictionary.

A storage medium according to claim 8 of the present invention is a storage medium storing a computer-executable program. When data of a trajectory to be a handwritten character is input to the computer, the trajectory is stored in the storage medium. When a program code for finding a corresponding radical, a program code for finding a kanji having the found radical, a program code for displaying the found kanji, and when one kanji is selected from the displayed kanji, And a program code for storing information indicating the kanji. According to the above configuration, similarly to the configuration of the first aspect, it is possible to simplify the input operation and shorten the input time when inputting handwritten Chinese characters.

[0030]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A handwriting input device according to an embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is a block diagram showing a schematic configuration of the handwriting input device of this example. In addition, the handwriting input device of this example is,
Basically, it is a general-purpose computer system that can be used for various business processes and other processes. And
This example of a handwriting input device enables handwriting input in the computer system.

The handwriting input device shown in FIG. 1 has a storage device 1 serving as storage means and a RAM (random access memory) 2.
, An input device 3 for inputting character codes and coordinate positions, a display device 4 for displaying various data and the like, a touch panel 5 for handwriting input, and a CPU for performing arithmetic processing
(Central processing unit) 6. The storage device 1, RAM 2, input device 3, display device 4, and touch panel 5 are connected by a bus line 8.

The storage device 1 has a storage medium 7 in which programs, data and the like are stored in advance, and this storage medium 7 is constituted by a magnetic / optical storage medium, a semiconductor memory or the like. The storage medium 7 is fixedly provided in the storage device 1 or is detachably mounted. The storage medium 7 stores a handwriting input program for performing processing to be described later together with other data and programs. Is done.

The program, data and the like stored in the storage medium 7 may be received from another device connected via a communication line or the like and stored.
A storage device including the storage medium 7 may be provided on another device connected via a communication line or the like, and programs and data stored in the storage medium 7 may be used via the communication line. .

As shown in FIG. 2, the storage medium 7 includes a radical recognition dictionary 7a, a character recognition dictionary 7b, a kanji radical table 7c, a kanji table 7d, and a character pattern memory 7e together with other data and programs. It is remembered.
The radical recognition dictionary 7a includes a graphic pattern corresponding to the shape of each radical input by hand, that is, a trajectory of a coordinate position input from a coordinate position input unit (here, a touch panel 5) such as a tablet, The character code indicating the neck is stored in association with the character code.

That is, as described later, the touch panel 5
When the data (trace pattern) of the trajectory of the coordinate position is input as the radical input by hand from the CPU 6,
Can retrieve a graphic pattern similar to the upper trace pattern from the radical recognition dictionary 7a, and obtain a character code corresponding to the retrieved graphic pattern. In addition,
In the radical recognition dictionary 7a, for example, data of the order of lines constituting each figure pattern, that is, data of the writing order may be registered together with the figure pattern. The radical recognition dictionary 7a basically includes character codes (for example, JI
The character codes of all radicals used for the kanji for which the S character code is registered are registered.

The character recognition dictionary 7b is basically composed of generally used characters (hiragana, katakana,
It is the same as the radical recognition dictionary 7a except that a number, a kanji, an alphabet, a symbol, etc. are registered, and includes a graphic pattern corresponding to the shape of each character input by handwriting and a character indicating each character. The CPU 6 searches the character recognition dictionary 7b for a figure pattern similar to the trace pattern when a trace pattern is input as a character input by handwriting from the touch panel 5, A character code corresponding to the retrieved graphic pattern is required.

In the kanji radical table 7c and kanji table 7d, a character code indicating each radical and a character code indicating a kanji having the radical are registered in association with each other. In other words, in the kanji radical table 7c and the kanji table 7d, for example, kanji character codes such as ananayu kanji moriya kan are registered in correspondence with the character code indicating "kankan".

Actually, as shown in FIG. 4, the kanji radical table 7c stores each character code (the actual radical is shown in FIG. 4), the number of strokes of each radical, and a kanji table 7d described later. A pointer indicating an upper position is stored in association with the pointer. That is, when one character code is specified on the kanji radical table 7c, the number of strokes and a pointer indicating a position on the kanji table 7d can be determined.

Further, in the kanji table 7c, character codes having the same radical are continuously registered at the position indicated by the pointer. That is, the kanji table 7
In c, as described above, the kanji having each radical is registered in association with the pointer corresponding to each radical. Therefore, when the character code of the radical is determined, a pointer corresponding to the character code of the radical can be obtained in the kanji radical table 7c, and then the character code of the radical can be obtained from the kanji table 7d by the pointer. A character code of a kanji having a radical indicated by is required. Also, the kanji radical table 7c
The character codes of all radicals registered in the radical recognition dictionary 7a are registered. The kanji table 7d stores the character codes of all kanji registered in the character recognition dictionary 7b in the pointer. Is registered in association with.

The character pattern memory 7e stores, for each character code, a character pattern (character graphic data) to be displayed on the display device 4 or a touch panel 5 having a display function as described later. That is, the character pattern memory 7e stores fonts such as a display bitmap font and an outline font. Note that the character patterns stored in the character pattern memory 7e are not limited to those for display, but may be those that also store character patterns for printing.

The RAM 2 forms a memory area for temporarily storing a handwriting input program processed by the CPU 6 and data related to the processing. For example, FIG. 3 shows that the RAM 2
Indicates a memory area for temporarily storing data formed in, for example, as these memory areas,
A handwriting input buffer 2a, a candidate buffer 2b, a radical flag 2c, and a character buffer 2d are formed.

The handwriting input buffer 2a is a memory area for temporarily storing a trace pattern as a handwritten character inputted from the touch panel 5 as will be described later, and a graphic pattern similar to the trace pattern stored in this memory area. Is retrieved from the radical recognition dictionary 7a and the character recognition dictionary 7b. The candidate buffer 2b temporarily stores a plurality of (one or more) radical character codes or normal character character codes recognized by character recognition for one trace pattern.

The radical recognition dictionary 7a and the character recognition dictionary 7
In a case where a character code of a radical or a normal character corresponding to a handwritten trace pattern is obtained from b, in this example, a plurality of similar graphic patterns are searched, and each of the plurality of similar graphic patterns is searched. The character codes of the plurality of radicals or ordinary characters that are candidates are obtained. The character codes of the plurality of radicals or ordinary characters thus obtained are stored in the candidate buffer 2b. Has become.

The radical flag 2c is a memory area for storing a flag for determining whether to use the radical recognition dictionary 7a or the character recognition dictionary 7b when recognizing handwritten characters. For example, when 0 is stored in this memory area (when the flag is off),
When the character recognition dictionary 7b is used and 1 is stored in the memory area (when the flag is ON), the radical recognition dictionary 7a is used.

The character buffer 2d temporarily stores the character code finally input. That is, when a radical is input by handwriting as described later, the character code of the kanji selected from the kanji having the radical is stored in the character buffer 2d, and the normal character other than the radical is stored. Is input by handwriting, the character code of the character input and recognized by handwriting is stored in the character buffer 2d.

The input device 3 has, for example, a keyboard for inputting a character code and a mouse as a pointing device for inputting a coordinate position. However, the input device 3 is also specialized for a specific business. Things,
A combination of a tablet and a dedicated input sheet may be used. Further, the input device 3 may be provided with a tablet capable of handwriting input separately from the touch panel 5. Note that the touch panel 5 is also basically an input device, but the input device 3 does not include the touch panel 5 here.

The display device 4 is, for example, a CRT (Cath
ode Ray Tube) display and LCD (liquid crystal)
display). Note that the touch panel 5 also uses the LCD 9 as described later and is basically a display device, but in this example, the touch panel 5 is not included in the display device 4.

When the touch panel 5 touches (or approaches) a pen (other than a pen depending on the type of the touch panel 5, for example, a finger or the like), the touch panel 5 on the touch panel 8 corresponding to the touch position is touched. It outputs an electric signal indicating a coordinate position. For example, a coordinate position detecting device of a resistive film type, an electromagnetic induction type, a pressure-sensitive type, an electrostatic coupling type or the like can be used as the touch panel 8.

The touch panel 5 is provided with a transparent film or plate-like coordinate position detecting device and an LCD superimposed on the coordinate position detecting device. As shown in FIG. The display on the LCD can be viewed through the coordinate position detecting device. That is, the touch panel 5 is a coordinate position input device having a display function. The coordinate position input from the coordinate position detecting device on the touch panel 5 is set so that the coordinate position on the coordinate position detecting device matches the coordinate position on the LCD.
D can be converted to the coordinate position of the coordinate system on the coordinate system D. When a figure displayed on the LCD is touched with a pen on the coordinate position detecting device superimposed on the LCD, L
It is possible to input a coordinate position substantially the same as the coordinate position of the graphic displayed on the CD.

Then, on the touch panel 5, FIG.
As shown in the figure, function keys are displayed in a row on the upper edge thereof. As the function keys, three keys for determining the type of character to be input by handwriting and four keys for executing a specific command are displayed. The three keys are a full-width key 5a, a half-width key 5b, and a radical key 5c, and the four keys are a delete key 5d, a blank key 5e, a confirm key 9f, and an execution key 5g.

When the full-width key 5a is touched with a pen, full-width hiragana, katakana, numbers, kanji, and the like can be manually input as so-called full-width characters (two-byte characters). Can be entered. Also, when the half-width key 5b is touched with a pen, a half-width number, alphabet or the like can be input as a so-called 1-byte character. Note that half-width characters can also be input using a character recognition dictionary.

Then, like numbers and alphabets,
If the shape is almost the same in both half-width and full-width,
When a number or alphabet is input by handwriting while a is touched with a pen, a full-width number or character code of the alphabet is output, and when the half-width key 5b is touched with a pen, the number or alphabet is handwritten. When input, half-width numbers and alphabetic character codes are output.

When the radical key 5c is touched with a pen, "1" is written in the memory area of the radical flag 2c, and the radical recognition dictionary 7a is used as a recognition dictionary instead of the character recognition dictionary 7b. Is being used. The four keys include a delete key 5d, a blank key 5e, a confirm key 5f, and an execution key 5g. Delete key 5 above
When d is touched, for example, a specified portion is deleted in a file in which text data can be input, such as a document file to which text data is currently being input or a table file for a form (under development on the RAM 2). It has become.

When the blank key 5e is touched, a character code indicating a space is output, and the space is input at the current input position of the file in which the text data is being input by the handwriting input device. Become. Touching the enter key 5f will confirm the selected candidate when one kanji or radical is selected in a state where a plurality of candidate kanji or radicals are displayed, as described later. . When the execution key 5g is touched, the character code of the character finally recognized or selected and confirmed, that is, the character code stored in the character buffer 2d is, for example, a file in which text data is being input by the handwriting input device. Will be input to the current input position.

The lower left portion of the function keys on the touch panel 5 is an input character display area 5h, which is a character pattern (font) corresponding to the character code finally selected and stored in the character buffer 2d. ) Is displayed. On the right side of the input character display area 5h below the function keys of the touch panel 5, four candidate character display areas 5i are arranged. When character recognition is performed, candidate characters or parts are displayed. Up to four necks are displayed.

A candidate (next / previous) instruction icon 5j for switching the display of the candidate character display area 5i is displayed at the lower right end of the function key of the touch panel 5, and the candidate (next / previous) icon is displayed. Previous) instruction icon 5
In j, a feed key 5j1 and a return key 5j2 are displayed. For example, when five or more characters or radicals are obtained as candidates, the candidate (next / previous) instruction icon 5j cannot display all candidates in the four candidate character display areas 5i. So, candidate (next / previous)
Each time the feed key 5j1 of the instruction icon 5j is touched with a pen, candidate characters or radicals are sequentially displayed, for example, four by four. When the return key 5j2 of the candidate (next / previous) instruction icon 5j is touched with a pen, the previously displayed candidates are returned, for example, four by four and displayed.

Further, below the input character display area 5h of the touch panel 5, a handwriting input area 5k is arranged.
The data of the locus of the coordinate position input in the handwriting input area 5 is stored as a trace pattern in the handwriting input buffer 2.
a. In the handwriting input area 5k, when a coordinate position on the coordinate position detecting device of the touch panel 5 is input, it is converted into a coordinate position on the LCD screen of the touch panel 5, and data of the converted coordinate position is input. Is output to the LCD, and the pixel of the LCD at the input coordinate position is displayed, for example, in black.

Therefore, a pattern similar to the trace pattern input by handwriting is displayed on the LCD of the touch panel 5, and a state is obtained in which characters are actually written on the touch panel 5. It can be visually confirmed whether the shape is correct. A kanji list display area 51 is arranged on the right side of the handwriting input area 5k of the touch panel 5, and when a radical handwriting input is performed as described later, a registered kanji having the entered radical is displayed. All are displayed. If the number of input kanji having a radical exceeds the number of characters that can be displayed in the kanji list display area 51, the display is divided into a plurality of pieces as described later.

A kanji list (next / previous) instruction icon 5m is displayed below the handwriting input area 5k of the touch panel 5.
Are displayed, and a kanji list (next / previous) instruction icon 5m displays a feed key 5m1 and a return key 5m2. Kanji list (next / previous) instruction icon 5
m can be displayed, for example, when the number of kanji having a radical input by handwriting exceeds the number of characters that can be displayed in the kanji list display area 51 and all the kanji cannot be displayed in the kanji list display area 51 at a time. This is for switching the display of the kanji list display area 51 so as to display the missing kanji. Then, when the pen key touches the feed key 5m1 of the kanji list (next / previous) instruction icon 5m,
Each time a touch is made, for example, the number of kanji left without being displayed is sequentially displayed in the kanji list display area 5m as many as possible. Also, return key 5
m2 sequentially returns to the previous display every time it is touched.

The CPU 6 is provided in the storage medium 6 of the storage device 1.
The handwriting input processing program stored in the RAM 2
And performs a handwriting input process described later.
That is, the CPU 6 is capable of performing the same ordinary handwriting input processing as that of the related art, and is capable of performing the handwriting input processing using a radical as described later. In normal handwriting input processing, when the radical key 5c is not touched and the radical flag 2c is off (O), the CPU 6 inputs a trace pattern as a handwritten character from the touch panel 5 to the handwritten input buffer 2a. In this case, a graphic pattern similar to the trace pattern is searched from the character recognition dictionary 7b, and a character code registered in the character recognition dictionary 7b corresponding to the graphic pattern is obtained. It is stored in 2d, and when the execution key 5g is touched, the obtained character code is input to the currently specified position of the file being input.

In the case where the entered characters include full-width and half-width, when the full-width key 5a is touched,
A full-width character code is obtained, and a half-width character code is obtained when the half-width key 5b is touched. In this case, it is preferable that the RAM 2 is provided with a flag area for, for example, setting a full-width mode when turned on and a half-width mode when turned off. When switching between the full-width mode and the half-width mode, the character recognition dictionary 7b is divided into half-width characters and full-width characters, and is used by switching between the full-width character recognition dictionary 7b and the half-width character recognition dictionary 7b. You may do it.

Further, when one trace pattern is input, a plurality of candidate character codes may be obtained from the character recognition dictionary 7b instead of immediately obtaining one character code. The CPU 6 stores the obtained candidate character codes in the candidate buffer 2b, obtains a display character pattern corresponding to the stored character code from the character pattern memory 7e, and displays this on the touch panel 5 as a candidate character display. Display in area 5i ..., then
When one character is selected from the candidate characters displayed in the candidate character display area 5i..., For example, when the coordinate position of the area in which the character to be selected is displayed is input from the touch panel 5, the character is selected. The character code of the character
The character code is stored in the character buffer 2d of the AM2, and when the execution key 5g is touched, the character code of the character buffer 2d is input to the currently specified position of the file being input.

The method of recognizing handwritten characters when the radical flag 2c is off is not limited to the above-described method, but may use another known method. As the handwriting input process using the radical, when the radical key 5c is touched and the radical flag 2c is on (1), the CP
When a trace pattern as a handwritten character is input from the touch panel 5 to the handwriting input buffer 2a, the U6 searches the radical recognition dictionary 7a for a graphic pattern similar to the trace pattern, and stores the graphic pattern in the radical recognition dictionary 7a. The character code of the radical registered in correspondence with the graphic pattern is obtained.

Next, the CPU 6 obtains a pointer indicating a position on the kanji table 7d from the kanji radical table 7c based on the obtained radical character code, and based on the pointer, obtains the pointer of the radical from the kanji table 7d. A kanji character code having a radical corresponding to the character code is obtained. Next, the CPU 6 obtains a display character pattern corresponding to the obtained kanji character code from the character pattern memory 7e, and displays this in the kanji list display area 51 of the touch panel 5.

Then, when one kanji is selected from the kanji listed in the kanji list display area 51, the CPU 6 determines, for example, the coordinate position of the display area of each kanji on the touch panel and the displayed kanji. When the coordinate position of the area where the kanji to be selected is displayed is input from the touch panel 5 in a state where the character codes are associated with each other, the selected character code is stored in the character buffer of the RAM 2, When the coordinate position of the execution key 5g is input from the touch panel 5, the character code stored in the character buffer 2d is input to the current input position of the file being input by the handwriting input device.

Further, when one trace pattern is input, a plurality of candidate character codes may be obtained without suddenly obtaining one character code from the radical recognition dictionary 5c. The CPU 6 stores a plurality of character codes obtained as candidates in the candidate buffer 2b, obtains a display character pattern corresponding to the stored character codes from the character pattern memory 7e, When a character is selected from the candidate characters displayed in the candidate character display area 5i and displayed on the display area 5i, for example, the coordinate position of the area where the radical to be selected is displayed is displayed on the touch panel 5. When input from, based on the character code of the selected radical, as described above, the kanji having a radical corresponding to the character code of the radical It is adapted to determine the character code.

When the CPU 6 obtains a plurality of candidate character codes, the CPU 6 assigns a predetermined order, a selected frequency, an input trace pattern and an input trace pattern to the character codes in the radical recognition dictionary 7a. The priority is determined based on the degree of similarity with the graphic pattern, and the radical corresponding to the character code of the radical is determined based on the character code of the radical having the highest priority, as described above. May be obtained. In this case as well, the character code of the candidate radical is stored in the candidate buffer 2b and displayed in the candidate character display area 5i, so that the radical with the highest priority is the kanji radical to be input. If not, a radical of the kanji to be input may be selected from the remaining candidates.

When the CPU 6 obtains the character codes of a plurality of radicals as candidates, the CPU 6 uses the kanji radical table 7c and the kanji table 7d for all the character codes of the radicals. Thus, the character code of the kanji may be obtained. That is, for each of the plurality of candidate radical character codes, the kanji character code having the radical indicated by the radical character code is determined, and all kanji corresponding to these kanji character codes are displayed in a kanji list. One kanji may be selected from these kanji so that it can be displayed in the area 51.

When the CPU 6 cannot find the character code of the corresponding radical from the radical recognition dictionary 7a for the input trace pattern, that is,
When a graphic pattern similar to the trace pattern input by handwriting is not registered in the radical recognition dictionary 7a, the character codes of all radicals registered in the kanji radical table 7c and the radical recognition dictionary 7a are used. The character pattern of the corresponding radical is obtained from the character pattern memory 7e, and all radicals can be sequentially displayed in the candidate character display area 5i so that a desired radical can be selected from all the radicals. Is also good. In addition, recognition of the handwritten radical itself,
It is basically the same as character recognition except that the object is not a character but a radical, and a known character recognition method can be applied to radical recognition.

Hereinafter, the handwriting input processing by the above-described handwriting input device will be described with reference to the display on the touch panel shown in FIGS. 6 and 7 and the flowcharts shown in FIGS. Note that the following handwriting input processing is performed based on the above-described handwriting input processing program, and the handwriting input processing program will be described by describing the handwriting input processing. The handwriting input process is a process of inputting text, and is performed when a document file, a table file such as a form, and other files into which text can be input are input. Therefore, in the handwriting input device, when performing a process of creating a document file and other files as a computer system,
The handwriting input process will be performed.

First, the processing is started by touching the touch panel 5 with a pen.
In 6, it is determined whether or not the coordinate position is output from the touch panel 5. That is, it is detected whether or not a pen operation has been performed on the touch panel (step S1). When a coordinate position is input from the touch panel 5, the process branches based on the coordinate position. For example, the input coordinate position is a function key position (step S2), and ,
If it is the position of the radical key 5c among the function keys (step S3), a process of switching the radical flag 2c for performing the above-described function of the radical key 5c is performed.

In the process of switching the radical flag 2c, first, it is determined whether the current radical flag 2c of the RAM 2 is on or off (step S4). If the radical flag 2c is on, the radical flag 2c is switched off (step S5), and the display of the radical flag 2c on the touch panel 5 is displayed as a normal display (a non-reversed display described later). (Step S6). When the radical flag 2c is off, the radical flag 2c is switched on (step S7), and the display of the radical flag 2c on the touch panel 5 is reversed (step S8).

If the coordinate input position from the touch panel 5 is the position of the execution key 5g of the function keys (step S9), the character code stored in the character buffer 2d is output to the current position of the file being created. (Step S10). The character buffer 2d stores a character code by a character recognition process described later.

When the coordinate input position from the touch panel 5 is neither the radical key 5c nor the execution key 5g of the function keys, the full-width key 5a, the half-width key 5b, the delete key 5d, the blank Key 5e,
Processing for realizing the function of one of the function keys of the confirmation key 5f is performed (step S1).
1). For example, when a coordinate position corresponding to the full-width key 5a is input, a process is performed so that a character input by handwriting is determined as a full-width character, and a coordinate position corresponding to the half-width key 5b is input. In this case, a process is performed so that the character input by handwriting is determined as a half-width character.

When the coordinate position corresponding to the delete key 5d is input, the character in the range currently specified in the file being created is deleted, and the coordinate position corresponding to the blank key 5e is input. In this case, the character code of the space is output, and the space is input at the current position of the file being created. On the other hand, when the input coordinate position is not the position of the function key but the position of the handwriting input area 5k (step S12), a character recognition process is performed (step S13).

Note that even if the coordinate input position from the touch panel 5 is the position of the function key, the handwriting input area 5k
If not, for example, if the coordinate input position is in the candidate character display area 5i... Or the kanji list display area 51, a process of selecting the character or radical displayed there is performed, and When the position of the (previous) instruction icon 5j or the kanji list (next / previous) instruction icon 6m is input, display switching processing described later is performed. This is a process that is performed during the recognition process (step S13). When a character input process is not being performed, a coordinate input position that is neither the position of a function key nor the handwriting input area 5k is ignored.

Then, as described above, the handwriting input area 5
When the coordinate position of k is input, the character recognition process is started, and as shown in the flowchart of FIG. 9, the data of the coordinate position indicating the handwritten character input from the handwriting input area 5k, that is, the trace pattern is The data is stored in the handwriting input buffer 2a (step A1). It is determined whether the radical flag 2c is on (step A2).
When the radical flag 2c is on, the radical recognition dictionary 7a is set as the recognition dictionary (step A3), and when the radical flag 2c is off, the character recognition dictionary 7 is used as the recognition dictionary.
b is set (step A4).

Next, at the stage where the recognition dictionary to be used is determined, actual recognition processing is performed (step A5).
This recognition process is basically performed by a well-known method, for example,
A large number of figure patterns as handwritten input characters registered in the recognition dictionary are compared with the trace patterns stored in the handwriting input buffer 2a, and a figure pattern similar to the trace pattern is searched from the recognition dictionary and searched. A character code corresponding to the graphic pattern is required.
In this example, when the character code is obtained from the recognition dictionary as described above, it is determined that the plurality of graphic patterns corresponding to the plurality of character codes are similar to one input trace pattern. In such a case, a plurality of character codes are required.

When the radical flag 2c is off,
A character code indicating a normal character is obtained from the character recognition dictionary 7b, and when the radical flag 2c is on, a character code indicating the radical is obtained from the radical recognition dictionary 7a in which the radical of the kanji is registered. . When the radical flag 2c is off,
When the full-width key 5a of the function key is touched, the character code of the full-width character is obtained. When the half-width key 5b of the function key is touched, the character code of the half-width character is obtained.

Next, it is determined whether the recognition process has succeeded or failed (step A6). That is, it is determined whether a character code has been obtained by the recognition processing. If the recognition process has failed, the radical flag 2c is again set.
Is determined to be on (step A7). If the radical flag 2c is off, the character recognition process is terminated, and
The state is a standby state until a pen operation is detected, and a state where re-input by handwriting is required. When the character recognition processing is terminated after the recognition processing has failed, a display or a sound for notifying that the recognition processing has failed may be output.

When the radical flag 2c is on,
The character codes of all radicals registered in the radical recognition dictionary 7a or the kanji radical table are read, and the read radical character codes are output to the candidate buffer 2b and stored. Further, a character pattern of the radical corresponding to the character code is obtained from the character pattern memory based on the character code of the radical stored in the candidate buffer 2b and output to the LCD of the touch panel 5. (Step A8). On the other hand, when the recognition is successful, the character code obtained by the recognition is output to and stored in the candidate buffer 2b. The character pattern corresponding to the character code (the character code of the radical when the radical flag 2c is on) is obtained from the character pattern memory 7e based on the character code stored in the candidate buffer 2b. Output to the LCD. (Step A9).

Then, on the touch panel 5, the character pattern of the candidate character (candidate radical) output as described above is displayed in the candidate character display area 5i as shown in FIG. 6 or FIG. 7 (step A10). ). When the radical flag 2c is off, character codes of ordinary characters are searched from the character recognition dictionary 7b as described above, and ordinary characters (hiragana, katakana, numbers, kanji, alphabets, , Etc.), a character having a shape similar to the character input by handwriting is selected.

Accordingly, for example, as shown in FIG. 6, when "I" is handwritten in the handwriting input area 5k, the character "Ka" is basically obtained as a candidate character and the character "K" is similar to the character "Ka". Are obtained and displayed in the candidate character display area 5i. When the radical flag 2c is on, for example, as shown in FIG.
When "I" is handwritten in the handwriting input area 5k, the radical "Ninben" is basically obtained as a candidate radical, and a candidate radical similar to "A" among the radicals of the kanji is obtained. And is displayed in the candidate character display area 5i.

Then, the candidate characters (candidate radicals) are displayed, and it is determined whether or not the radical flag 2c is ON (step A11). When the radical flag 2c is off, the characters to be input are displayed in the candidate character display area 5i... As described above. Selection is performed, for example, by touching an area on the touch panel where characters to be selected are displayed with a pen (step A12). Further, at this time, after touching the area with the pen, the enter key may be touched.

In this manner, the character code stored in association with the area in which the character is displayed as described above is selected. If the number of candidate characters is large and not all candidate characters can be displayed in the candidate character display area 5i at a time, as many characters as can be displayed are displayed. By touching and operating the icon 5j with a pen, the display can be switched, whereby all candidate characters can be displayed. Therefore, when the number of candidate characters is large, a character is selected while switching the display.

On the other hand, when the radical flag 2c is on,
The operator selects a desired radical from the radicals displayed in the candidate character display areas 5i (step A13). In this case, for example, the user touches an area on the touch panel 5 where the radical to be selected is displayed with a pen, or touches an area where the radical to be selected is displayed with the pen, and then touches the enter key. By doing so, the character code stored in association with the area in which the character is displayed as described above is selected.

Then, by searching the kanji radical table 7c based on the selected character code, a pointer for selecting a kanji registered in the kanji table 7d is obtained. 7d
Then, the character code of the kanji having the radical indicated by the character code of the radical is obtained (step A14). Next, a character pattern corresponding to the character code is obtained from the character pattern memory based on the obtained character code, and is output to the LCD of the touch panel 5. (Step A15).

That is, as shown in FIG. 7, candidate kanjis (kanjis having radicals input by hand) are displayed in a list in the kanji list display area 51. In the kanji list display area 51, similarly to the candidate character display area 5i, if all candidate kanji characters cannot be displayed, as many kanji characters as possible can be displayed and the kanji list (next / previous) is displayed. By operating the instruction icon 5m, the display can be switched to display all candidate kanji.

Then, the operator sets the kanji list display area 5l.
(Step A16). In this case, for example, touching the area on the touch panel 5 where the kanji to be selected is displayed with a pen, or touching the area where the kanji to be selected is displayed with the pen and then touching the enter key As a result, the character code of the kanji stored in association with the area in which the kanji is displayed as described above is selected.

Next, the character code selected in step A12 or A16 is stored in the character buffer 2d, and the character recognition process ends. By touching the execution key 5g of the touch panel 5 with the pen as described above in a state where the character code is stored in the character buffer 2d in this way, the character stored in the character buffer 2d is processed in step S10. The code is output, and the character code is input at the current position of the file being input by the handwriting input device of this example.

For example, in this handwriting input device, when a document file or a form file is input, a document or a form is displayed on the display device 4. In this state, a character is input from the touch panel 5 by handwriting. When the operation is performed, a character input by handwriting is input at a cursor position of a document or a form displayed on the display device 4, and the input character is also displayed on the display device 4.

The above-described handwriting input processing is an example of the handwriting input processing by the handwriting input device of the present invention. For example, as an application example, the processing shown in the flowchart of FIG. 10 may be performed. The flowchart of FIG. 10 is such that the processing of steps B1 to B3 is performed instead of steps A13 to A16 of the flowchart of the character recognition processing shown in FIG. 9, and the other processing is the same as the processing described above. The same is done. Step B below
The processing of 1 to B3 will be described.

In this example, when the radical flag 2c is ON, the character codes of the candidate radicals are obtained as described above, and the candidate radicals are displayed on the touch panel 5 in the above-described manner. , The kanji radical table 7c and the kanji table 7d are selected based on the character codes of the plurality of candidate radicals without performing the process of selecting one radical from the plurality of candidate radicals. Is searched for a character code (step B1). That is, all kanji having at least one of a plurality of candidate radicals are obtained from the kanji radical table 7c and the kanji table 7d.

Next, the kanji having these character codes is displayed on the screen of the touch panel 5 as in the case of step A15. Then, the process of selecting a kanji to be input from the kanji displayed on the screen of the touch panel 5 is performed in substantially the same manner as in step A16. With such processing, the operation of selecting one radical from a plurality of radical candidates by the operator shown in step A13 can be omitted, so that the operation by the operator is reduced, and Handwriting input using a radical can be facilitated.

As another application example, a process as shown in the flowchart of FIG. 11 may be performed. The flowchart of FIG. 11 is such that the processing of steps C1 to C11 is performed instead of steps A9 to A16 of the flowchart of the character recognition processing shown in FIG. 9, and the other processing is the same as the processing described above. The same is done. The processing of steps C1 to C11 will be described below.

In this example, when the radical flag 2c is on, recognition processing is performed using the radical recognition dictionary 2a as a recognition dictionary as described above, and a candidate radical is obtained. When the candidate character codes are output as in the case of step A9, the priority order of the candidate characters is output together with the candidate character codes (step C9).
1). The priority order may be determined in advance for each character or radical, may be determined based on the frequency of use, or may be registered in advance in the input trace pattern and the recognition dictionary upon recognition. It may be determined based on the degree of similarity of the drawn graphic patterns.

Next, as in step A10, candidate characters and radicals are displayed on the touch panel 5. At this time, candidate characters and radicals are displayed in order according to the priority order (step A10). C2). Then, similarly to step A11, it is determined whether or not the radical flag 2c is on (step C3). If the radical flag 2c is off,
An operation of selecting a character to be input from the displayed candidate characters is performed in the same manner as in step A12 (step C12).
4).

When the radical flag 2c is turned on, the kanji having the first radical from the kanji radical table 7c and the kanji table 7d based on the character code of the radical having the highest priority. Search character code (step C
5). Then, as in step A15, the touch panel 5
In the kanji list display area 5
1 (step C6). At this time, if the radical having the highest priority is different from the radical for which the user tried to input by handwriting, the operator becomes a candidate displayed in the candidate character display area 5i as in step A13. A selection operation of touching the display area of a desired radical among the radicals with a pen is performed.

On the other hand, if the radical with the highest priority matches the radical that the user tried to input by handwriting, step A16
Similarly to the above, a selection operation of touching the display area of the kanji to be input among the candidate kanji displayed in the kanji list display area 51 with a pen is performed (step C7).
In step C8, it is determined whether the coordinate position output from the touch panel 5 is the position of the candidate character display area 5i... Or the position of the kanji list display area 51. In the case of the kanji list display area 51, as described above. Is stored in the character buffer 2d by the process of step A17.

On the other hand, when the coordinate position output from the touch panel is in the candidate character display area 5i, step C8 is basically the same as that in steps A14 to A16.
To C10. That is, the character code of the kanji having the radical is searched for based on the character code of the selected radical (step C8), and the kanji having the searched character code is displayed in the kanji list display area 51 (step C9). Then, one kanji is selected from the kanji displayed by the operator (step C10). Then, the character code of the selected kanji is stored in the character buffer 2d.
Is stored in

With this processing, when the radical having the highest priority is the radical to be input, one radical is selected from the plurality of candidate radicals by the operator shown in step A13. Can be omitted, the number of operations by the operator can be reduced, and the above-described handwriting input using a radical can be facilitated. In the case where the radical having the highest priority is not the radical to be input, an operation of selecting one radical from a plurality of candidate radicals is performed. Only the operation in the above example is the same, and the operation does not become complicated.

In the above example, the handwriting input device includes the display device 4 and the input device 3 and the touch panel (including the LCD) 5 having the input function and the display function. The display device 4 and the input device 3 may be omitted. Conversely, if the input device has a coordinate position input device such as a tablet capable of inputting characters by handwriting, by causing the display device 3 to perform a display similar to the display of the touch panel 5 as described above, The handwriting input may be performed while looking at the display screen of the display device 3. In this case, the touch panel 5 may not be provided. The handwriting input device is a CRT.
It is not necessary to use a relatively large computer system provided with the electronic device, but may be a small and configurable electronic device such as a PDA (personal digital assistant).

[0103]

According to the handwriting input device according to the first aspect of the present invention, the radicals of the kanji to be input can be input by handwriting. There is no need to perform an operation of selecting a radical from a large number of radicals. That is, instead of such two operations, the radical may be input by handwriting, and the number of operations can be reduced as compared with the conventional kanji input method using the radical index.

Basically, when inputting one kanji, it is sufficient to input one radical manually, so that the number of characters to be input by handwriting does not increase unlike the input method using kana-kanji conversion. , The number of input characters can be reduced as compared with the kana-kanji conversion. Also, when inputting kanji with a large number of strokes, instead of inputting all parts of the kanji by handwriting, only one radical needs to be input by handwriting, and the number of operations is increased, but the labor required for handwriting can be reduced In addition, when inputting kanji with a large number of strokes, for which it is difficult to increase the recognition rate, there is no need to re-enter the kanji with a large number of strokes without recognizing handwritten characters. Can be simplified. As described above, according to the handwriting input device, the input operation can be simplified and the input time can be reduced as compared with the conventional handwriting input device.

According to the handwriting input device of the second aspect of the present invention, in a recognition dictionary for recognizing characters by handwriting input, a radical recognition dictionary in which radicals which are a part of Chinese characters are registered instead of characters. By switching the dictionary, it is possible to easily switch between normal character recognition and input based on radicals.

According to the handwriting input device of the third aspect of the present invention, the radical recognition means does not specify a radical corresponding to the locus data input by handwriting to one radical from the beginning. Even if the shape of the neck is not accurately input by handwriting, it is highly likely that it will be included in multiple candidate radicals, and the possibility of re-input due to erroneous recognition will be extremely low. Even if one operation for selecting a radical is added, substantial simplification of the operation can be achieved.

According to the handwriting input device of the fourth aspect of the present invention, as in the case of the third aspect, even if the shape of the radical is not accurately input by handwriting, a plurality of candidate radicals can be obtained. And the possibility of re-input due to erroneous recognition is extremely low, and it is not necessary to select one radical from a plurality of radicals as in the case of claim 3, so that the kanji input operation Can be further simplified.

According to the handwriting input device according to the fifth aspect of the present invention, as in the case of the third aspect, even if the shape of the radical is not accurately input by handwriting input, a plurality of candidates can be obtained. The possibility of being included in the neck is high, the possibility of re-input due to erroneous recognition becomes extremely low, and the operator selects one radical from a plurality of radicals obtained as in claim 3. Instead, the selection is made according to the priority output from the radical recognition means, so that the operation can be simplified.

According to the handwriting input device according to the sixth aspect of the present invention, when the shape of a radical is not clear and a correct radical cannot be input, rewriting by handwriting can be performed until a correct-shaped radical can be input. It is not necessary to repeat the input, and the kanji can be input by selecting the desired radical from the displayed radicals, so that the labor required for the substantial input operation can be reduced.

According to the handwriting input device according to the seventh aspect of the present invention, for a kanji character which has a relatively small number of strokes and which is correctly remembered, the kanji can be directly input by handwriting using the character recognition means. For kanji characters that do not memorize correctly or kanji characters with a relatively large number of strokes, operability can be improved by inputting kanji characters from a handwritten radical using radical recognition means. Claim 8 of the present invention
According to the storage medium described above, it is possible to simplify the input operation and shorten the input time when inputting handwritten Chinese characters, as in the configuration of the first aspect.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a schematic configuration of a handwriting input device according to an example of an embodiment of the present invention;

FIG. 2 is a diagram for explaining a configuration of data stored in the handwriting input device of the above example.

FIG. 3 is a diagram illustrating a configuration of a memory area of a RAM of the handwriting input device of the above example.

FIG. 4 is a diagram illustrating a kanji radical table and a kanji table of the handwriting input device of the above example.

FIG. 5 shows a display screen of a touch panel of the handwriting input device of the above example.

FIG. 6 shows a display screen of a touch panel of the handwriting input device of the above example.

FIG. 7 shows a display screen of a touch panel of the handwriting input device of the above example.

FIG. 8 is a flowchart for explaining handwriting input processing by the handwriting input device of the above example.

FIG. 9 is a flowchart illustrating a handwriting input process by the handwriting input device of the above example.

FIG. 10 is a flowchart illustrating a handwriting input process by the handwriting input device of the above example.

FIG. 11 is a flowchart illustrating a handwriting input process by the handwriting input device of the above example.

[Explanation of symbols]

Reference Signs List 1 storage device (input character storage means, radical recognition dictionary storage means, kanji radical storage means, display character storage means) 2 RAM (input character storage means) 2a handwriting input buffer 2b candidate buffer 2c radical flag 2d character buffer 5 Touch panel (coordinate position input means, display means) 6 CPU (radical recognition means, radical kanji conversion means, kanji display means, selected kanji output means, radical display means, selected radical output means, all-radical display means, switching Means, character recognition means) 7 storage medium 7a radical recognition dictionary 7b character recognition dictionary 7c kanji radical table 7d kanji table 7e character pattern memory

Claims (8)

[Claims] 1. A coordinate position input means capable of inputting handwritten characters, a display means capable of displaying characters, and a unit corresponding to the trajectory based on the trajectory of the handwritten character input by the coordinate position input means. A radical recognition means for determining a neck and outputting information indicating the determined radical; and a kanji having a radical indicated by the information output from the radical recognition means, and determining the information indicating the determined kanji. Radical kanji conversion means to output; kanji display means for displaying kanji indicated by information output from the radical kanji conversion means on the display means; and arbitrary kanji selected from kanji displayed on the display means Handwritten input, comprising: selected kanji output means for outputting information indicating the selected kanji when selected; and input character storage means for storing information output from the selected kanji output means. apparatus. 2. A radical recognition dictionary storing means for storing a radical recognition dictionary in which a trajectory pattern that can be input from the coordinate position input means and a character code indicating a radical of a kanji are registered. Kanji radical storage means for storing a kanji character code having a radical indicated by the character code corresponding to the character code of each radical; display of a character indicated by the character code corresponding to each character code Display character storage means in which a character pattern for use is stored. The radical recognition means, based on the trajectory of the handwritten character input by the coordinate position input means, stores a pattern of a trajectory similar to the trajectory to the part. In addition to searching from the radical recognition dictionary, a radical character code corresponding to the locus pattern retrieved from the radical recognition dictionary is obtained and output, and the radical kanji conversion means is output from the radical recognition means. The character code of the kanji corresponding to the character code of the radical is obtained and output from the kanji radical storage means, and the kanji display means converts the character pattern corresponding to the character code output from the radical kanji conversion means. 2. The handwriting input device according to claim 1, wherein said handwriting input device reads out from said display character storage means and outputs to said display means. 3. The radical recognizing means outputs information indicating a plurality of radicals when a plurality of radicals corresponding to the trajectory input by the coordinate position input means are obtained. And a radical display means for displaying the radical output from the radical recognition means on the display means, and when an arbitrary radical is selected from the radicals displayed on the display means, the selected radical is selected. Selecting radical output means for outputting information indicating a radical, wherein the radical kanji conversion means obtains a kanji having a radical indicated by the information output from the selective radical output means, and 3. The handwriting input device according to claim 1, wherein the information is output. 4. The radical recognizing means outputs information indicating a plurality of radicals when a plurality of radicals corresponding to the trajectory input by the coordinate position input means are obtained, The radical kanji conversion means, when information indicating a plurality of radicals is output from the radical recognition means, determines a kanji having at least one of these radicals, and indicates the determined kanji. 3. The handwriting input device according to claim 1, wherein 5. When a plurality of radicals corresponding to the trajectory input by the coordinate position input means are obtained, the radical recognition means outputs information indicating the plurality of radicals and outputs the information. The radical kanji conversion means outputs the information indicating the priority of each radical, and the radical kanji conversion means has the highest priority when the information indicating a plurality of radicals is output from the radical recognition means. 3. The handwriting input device according to claim 1, wherein a kanji having a high radical is obtained, and information indicating the obtained kanji is output. 6. When a radical corresponding to the trajectory is not obtained based on the trajectory of the handwritten character input by the coordinate position input means, the radical recognition means pre-registers the radical. And a selected radical output for outputting information indicating the selected radical when an arbitrary radical is selected from the radicals displayed on the display device. Means, the radical kanji conversion means seeks a kanji having a radical indicated in the information output from the selected radical output means in place of the radical determined by the radical recognition means, The handwriting input device according to any one of claims 1 to 5, wherein information indicating a kanji is output. 7. A switching means for switching between a radical input mode for obtaining a kanji to be input from a handwritten input of a radical and a character input mode for obtaining a character to be directly input from a handwritten input character, and a character input mode. And character recognition means for obtaining a character corresponding to the trajectory based on the trajectory of the handwritten character input by the coordinate position input means, and storing information indicating the obtained character in the input character storage means, In the character input mode, the character recognition unit recognizes the trajectory input by handwriting, and in the radical input mode, the radical recognition unit recognizes the trajectory input by handwriting. The handwriting input device according to any one of claims 1 to 6, wherein 8. A storage medium storing a computer-executable program, wherein, when data of a trajectory to be a handwritten character is input to the computer, a program code for obtaining a radical corresponding to the trajectory; A program code for obtaining a kanji having the obtained radical, a program code for displaying the obtained kanji, and a program code for storing information indicating the kanji when one kanji is selected from the displayed kanji A storage medium storing a program including: