JP3363119B2 - Handwritten data input device, handwritten data input method, and recording medium recording the method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handwriting data input device, and more particularly, to a handwritten document in which character data (text, handwritten character strokes) and drawing memo data (drawing memo strokes) can be mixed. The handwritten character stroke relates to a handwritten data input device that can be easily converted into text by character recognition later, transmitted by mail, searched, and reused.

[0002]

2. Description of the Related Art As methods for inputting handwritten data, there are a method (1) of saving handwritten strokes as they are and an ink word processor input method (2) of reducing handwritten strokes that have been input in a continuous manner and saving them. is there.

The method of directly storing the handwritten stroke of (1) is used in applications such as characters, figures, and
The feature is that the user can freely input strokes without paying special attention to pictures. Further, the ink word processor input method (2) is a method of reducing handwritten strokes that have been input in a row and reducing the strokes to fit the space between lines.
In general, when inputting by handwriting on a tablet with a pen, it is difficult to write a small character, and it is inevitably large. If a large character is saved as it is, there is a problem that it occupies the screen, but since the ink word processor input method saves it in a reduced size, the problem of occupying the screen as described above is solved. Also, it is displayed in line with each other, so it has a beautiful effect.

[0004]

As described above, in the conventional method (1) for directly saving handwritten strokes, data such as characters, figures and pictures can be freely input. When there are mixed characters, it is difficult to extract and recognize only the characters. Therefore, it is difficult to use it by sending only a character part by general mail, or reuse it by making it into text and searching for it later.

Further, in the ink word processor input method of (2), handwritten strokes can be embedded between lines,
Since each character is not cut out and saved as a character, for example, not only is there a problem that the handwriting for one character cannot be erased, but also handwriting strokes can be recognized later. Have difficulty.

It is an object of the present invention to solve the above problems and easily determine whether a handwriting stroke is a character stroke which is a stroke input of a character or a memo drawing data stroke which is a stroke input of a drawing memo. If it is a character stroke, it can be easily recognized later and converted to text, and it is possible to cut out and edit each character, and send it by e-mail. (EN) Provided are a handwritten data input device and a handwritten data input method, which are capable of freely drawing pictures, and a recording medium recording the method.

[0007]

In order to achieve the above object, the present invention has an input means (input section 101) for inputting handwritten data (slotoke data such as characters and drawing memos).
And display means for displaying the input data (display unit 10
2) and a cursor indicating the start position of the text data input
When data is entered in the position of
Data is input at the cursor position that indicates the input start position
Data has been entered before a certain time has passed
If the input data is determined to be a handwritten character,
In other cases, the input data determining means (input data determining unit 103) that determines the input data as a drawing memo, and if the input data is determined to be a character, the input data is determined for each character. When it is requested to recognize a character,
A character data management unit (character data management unit 104) that passes the handwritten data cut out character by character to the character recognition unit (character recognition unit 106) to convert the handwritten character strokes into text and save the text, and the input data. When it is determined that the drawing memo is a drawing memo, a drawing memo data management unit (drawing memo data management unit 105) that saves the input data without cutting it out is provided.

Further, in the handwritten data input method of the present invention, when handwritten data (slotalk data such as characters and drawing memos) is input from the input unit, the input data determination unit determines the input start position of the text data. Position of the cursor
If data is entered in the
Data is entered at the cursor position, which indicates the input start position.
If data is input before a certain time elapses after
The input data is judged to be a handwritten character and
In this case, the input data is determined to be a drawing memo . When it is determined that the input data is a character, the input data is transferred to the character data management unit. The character data management unit cuts out the input data for each character and saves it as a handwritten character stroke. If a character recognition request is made, the handwritten character stroke cut out for each character is used by the character recognition means. Convert it to text and save. If it is determined that the input data is a drawing memo, the input data is not cut out and directly saved as a drawing memo stroke. This can be realized by displaying these data (text, handwritten character strokes, drawn memo strokes) on the display unit.

Further, the recording medium of the present invention is one in which each processing of the above handwriting data input method is coded into a computer-executable program and recorded on a recording medium such as a CD-ROM, a DVD or an FD.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION (Outline) In the present invention, when inputting handwritten data, when the stroke input is started from a predetermined specific position, the stroke input is regarded as "character input", While handwriting character strokes are saved while cutting out characters, on the other hand, when stroke input is started from a position other than the above specified position, the stroke input is regarded as a drawing memo (figure, picture, etc.), and character cutting is performed. It allows free handwriting without being restricted by.

The handwritten character strokes are cut out for each character and stored, so that it is possible to easily convert the handwritten character strokes into text by character recognition or edit each character. On the other hand, drawing memos such as figures and pictures can be freely written without being restricted by the cutout of characters.

By converting the handwritten character stroke into text by character recognition, it is possible to use it by sending only the character part by general mail, or reuse it by making it into text and searching for it later. In addition, handwritten character strokes can be displayed neatly in line with a grid of a line or manuscript paper.

Further, since the handwritten character strokes and the strokes of the drawing memo are separately stored, when the strokes are compressed later, a compression method suitable for the respective data (eg, character → character recognition approximation, It is also possible to apply (drawing memo → approximation of figure recognition) to compress handwritten character data when recognizing it later so as not to reduce the recognition rate, and draw memo data can be compressed while maintaining the shape of the figure. is there.

(First Embodiment) A handwritten data input device according to a first embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing functional blocks of a handwriting data input device according to the first embodiment of the present invention. This handwriting data input device, as shown in the figure, has an input unit (10) for inputting handwriting (strokes such as characters and drawing memos).
1), an input data determination unit (103) and an input data determination unit (10) that determine whether the input data is a handwritten character or a drawing memo based on the position of the input data.
When it is determined by 3) that the input data is a character, the input data is cut out for each character and saved as a handwritten character stroke (1042), and when there is a character recognition request, A character data management unit (104) that passes the handwritten data cut out character by character to a character recognition unit (106), converts the handwritten character strokes into text, and saves it as text (1041), an input data determination unit (103). By this, when it is determined that the input data is a drawing memo, the drawing memo data management unit (105) that directly saves the input data as the drawing memo stroke (1051) without cutting the input data, and , These saved data (text (1041), handwritten character stroke (1042), drawing memo stroke (1 Display unit for displaying by reading the 51)) composed of (102).

Text (1041), handwritten character stroke (1042), drawing memo stroke (105)
1) and the like are stored in a storage device such as a semiconductor memory or a hard disk (which may be an individual storage device or different areas of a single storage device).

Next, the operation of the handwritten data input device according to the first embodiment of the present invention shown in FIG. 1 will be described. Input section (10
When a handwritten handwriting (characters or drawing memo) is input by 1), the input data determination unit (103) determines whether the input data is a handwritten character based on the position of the input data. Determine if there is.

When the input data determination unit (103) determines that the input data is a character, the input data is transferred to the character data management unit (104).
The character data management unit (104) cuts out the input data for each character and saves it as a handwritten character stroke.
When there is a request for character recognition, the handwritten character stroke cut out for each character is converted into text using the character recognition unit (106) and saved.

If the input data determination unit (103) determines that the input data is a drawing memo, the drawing memo data management unit (105) does not cut the input data and draws the drawing memo. Save as a stroke in storage. These data (text, handwritten character strokes, drawn memo strokes) are displayed on the display unit (102).

FIG. 12 is a diagram showing a configuration example of the handwriting data input device according to the first embodiment of the present invention. The handwritten data input device includes an input device (1201), an output device (display device) (1202), a CPU (1203), and a storage device (1204). In the processing of the present invention, for example, the CPU (1203) reads out a program stored in the storage device (1204), and the input device (120
It is determined whether the handwritten data input from 1) is character data or drawing memo data.

As a result of the determination, in the case of character data, the character is cut out and stored as a handwritten stroke or the character is recognized and converted into text according to a program. In the case of drawing memo data, the stroke is directly stored as a drawing memo stroke. Then, each processing such as displaying these data (text, handwritten character stroke, drawing memo stroke) on the display device (1202) is performed.

As for the correspondence between FIG. 1 and FIG. 12, the input unit (101) and the display unit (102) of FIG. 1 correspond to the input device (1201) and the output device (1202) of FIG. The input data determination unit (103), the character data management unit (104), and the drawing memo data management unit (10 in FIG.
5), the character recognition unit (106) is the CPU (12
03) reads out and executes the program stored in the storage device (1204) to achieve the function. The details of the process will be described later with reference to the process flow of FIG.

FIG. 2 is a diagram showing an example of the screen (201) of the "handwritten memo pad application" by the handwritten data input device according to the first embodiment of the present invention. In the example of FIG. 2, the handwritten character stroke and the text are displayed at the position of the cursor (207) between the ruled lines (206). When the character input start frame (203) is displayed at the position of the cursor (207) and the user starts the handwriting stroke input from the character input start frame (203), the input data determination unit (103) displays the stroke as a character. It is determined that the stroke is an input stroke, and a character cutout frame (204) surrounding the stroke is displayed.

When the user adds a handwritten stroke in the frame, the input data determination unit (103) determines that the stroke also forms the same character, cuts out the same character, and buffers the handwritten character stroke. . When stroke input is started from the character input start frame (203), strokes written until a certain period of time after the end of stroke are written in other than the character input start frame, the input data determination unit (103 ), Character data is determined, and similarly, handwritten character strokes are buffered while cutting out characters. In the example shown in FIG. 2, the handwritten character strokes "Tomorrow at 12 o'clock, gather in front of the book center" are respectively displayed in the character cutting frame (20
This is an example of input while cutting out in 4).

When the stroke input is started from the character input start frame (203) and a certain period of time elapses after the stroke input is completed (time out), a cursor (207) is displayed after the last handwritten character stroke. The character input start frame (203) is moved. In this way, by displaying the character input start frame at the position of the cursor, it becomes possible to easily input the next handwritten character stroke without hiding the previously input handwritten character stroke under the user's hand.

If the handwriting input is started from outside the character input start frame (203), the stroke is determined to be a drawing memo by the input data determination unit (103), and the stroke is not cut and the stroke is not changed. It is saved in the storage device as a drawing memo stroke. In the example of FIG.
Handwritten map (and accompanying text) written at the bottom
Is saved as a drawing memo stroke without being cut out.

In this state, if the user "character recognition"
When the button (205) is pressed (mouse click), 1
The character recognition unit (106) character-recognizes the handwritten character strokes cut out for each character and stored, and converts the handwritten character strokes into a text character string "Together tomorrow at 12 o'clock before book center". The above is the description of the application screen of the handwriting data input device according to the embodiment of the present invention.

FIG. 3 is a processing flow chart for explaining the processing flow of the handwriting data input device according to the first embodiment of the present invention. In this process flow diagram, a rectangular quadrangle represents a general process, and a pentagon with two corners on the right side represents a process branch.

In FIG. 3, first, the input section (101)
Gets the user's handwriting input (step 30).
1). Then, the input data determination unit (103) determines whether the data input by the input unit (101) is character data, drawing memo data, or a character recognition menu designation (step 302). ). That is,
If the input data is input from the character input start frame (203), it is determined that the input data is character data until the stroke input ends and a fixed time elapses (timeout occurs). When inputting from other positions, it is determined that the stroke input is drawing memo stroke data (except when the "character recognition" button (205) is pressed).

If the input data determination unit (103) determines that the input data is character data (step 303: Y), the handwritten character data management unit (104) cuts out the input data for each character, Buffer as handwritten character strokes (step 303-1). The input data is cut out by displaying a character cutout frame (204) so as to surround the stroke, and if the stroke is drawn from among them, it is determined that the characters are the same. (Alternatively, the character input frame is displayed from the beginning, and it is determined that the stroke written in it is one character, or if strokes are written with a certain distance apart, another character is written. There is also a method for determining that the stroke is the same as the above, etc. Further, the cut out handwritten character stroke may be saved by enlarging or reducing it to a size that fits the width of the ruled line (206).

If the input data judgment unit (103) judges that the input stroke data is the drawing memo data (step 304: Y), the drawing memo data management unit (105) draws the input stroke data as the drawing memo stroke. Buffering as (step 304-1).
That is, strokes are directly buffered without cutting out characters.

If the input data judging unit (103)
When it is determined that the "character recognition" button (205) has been selected (step 305: Y), the character data management unit (1
The handwriting character stroke buffered by 04) is converted into text data by the character recognition unit (106),
Buffering is performed (step 305-1). On this occasion,
Since the handwritten character stroke is cut out for each character, the character can be easily recognized. The character data management unit (104) sets a flag of text conversion completed on the handwritten character stroke data for which character recognition has been performed.

The display unit (102) displays the text,
The handwritten character strokes for which the text converted flag is not set and the drawing memo strokes are displayed on the screen (step 306). The above is a processing outline of the handwriting data input device according to the first embodiment of the present invention. As described above, the handwriting data input device according to the first embodiment of the present invention can be realized.

(Second Embodiment) Next, a handwritten data input device including a stroke compression means, an image data management means and the like, which is a second embodiment of the present invention, will be described.

FIG. 4 is a diagram showing the functional blocks of the handwriting data input device according to the second embodiment of the present invention. The "handwriting data input device" according to the second embodiment of the present invention is shown in FIG.
As shown in (4), an input unit (40 for inputting handwritten stroke data (stroke data such as characters and drawing memos))
1), an input data determination unit (403) that determines whether the input data is a handwritten character, a drawing memo, or a selection of a menu or a button based on the position of the input data. When the input data is determined to be a character, the input data is cut out for each character and stored in the storage device as a handwritten character stroke,
When there is a request for character recognition, the handwritten data cut out character by character is passed to the character recognition unit (406), the handwritten character stroke is converted into text, and the character data management unit (404) is input. When it is determined that the created data is a drawing memo, the drawing memo data management unit (405) that directly saves the input data in the storage device as a drawing memo stroke without cutting out the input data, A stroke enlargement / reduction unit (407) that enlarges / reduces the size, a stroke compression / decompression unit (408) that compresses the data amount of handwritten character strokes and drawing memo strokes for storage, and decompresses the data for display. Image data management unit (409) that acquires, edits, and saves image data, text, handwritten character strokes, and images Display combining unit for combining in accordance with the layer information of the layer management unit (410) (411), a display unit for displaying the synthesized data (402), and,
When there is a request to input / output data to / from a file, all data (text 4121, handwritten character strokes 4122, drawing memo strokes 4123, images 412)
4) or text 4125, stroke 412
6, a file input / output unit (412) for inputting / outputting individual data of the image 4127 to / from a file. In addition,
The operation of the handwriting data input device according to the second embodiment will be described later in detail with reference to FIGS.

FIG. 5 is a diagram showing an example of the screen (501) of the "handwritten memo pad application" by the handwritten data input device according to the second embodiment of the present invention. In the example of FIG. 5, the user inputs a handwritten character (stroke) in the handwritten character input frame (503). Then, the stroke written in the same character input frame is determined to be one character, and the character is cut out. Furthermore, the input stroke is reduced (or enlarged) to a size that fits within the ruled line (510),
A handwritten character stroke is displayed at a position where the cursor (504) is located between the ruled lines (510). In the example shown,
After that, the handwritten stroke "OK!" Is reduced and displayed for each character ("O", "K", "!") At the position of the cursor (504) according to the width of the ruled line (510). To be done.

If handwriting input is started from outside the character input frame (503), it is determined that it is a drawing memo, and the character is not cut out and the stroke is directly stored in the storage device. In the example of FIG. 5, the handwritten map (and the characters accompanying it) is saved as a drawing memo stroke without being cut out.

Further, in the example of FIG. 5, various menus are used to capture images. To import an image, select the "Image selection" button (506-1) from the menu, select the image of the desktop screen or another application (specify the range), and drag and drop it into the handwriting memo pad application. The selected image sticks to. The example of FIG. 5 shows an example in which the image of the clock on the desktop screen is pasted on the memo pad. In addition to this application, the "All character recognition" button (506-
2), "Partial character recognition" button (506-3), "Double angle" button (506-4), "Stroke compression" button (506-5), "All data file" button (506
-6), "Individual data file" button (506-
7), a "file open" button (506-8), and "line feed" button (505-1), "space" button (505-2) as a "text input" button,
A "backspace" button (505-3) and a "change line spacing" bar (507) are provided.

Next, an "image selection" button (506-1)
Menu buttons other than will be described. When the "recognize all characters" button (506-2) is selected, all handwritten character strokes are recognized and converted into text.
When the "Partial character recognition" button (506-3) is selected,
It becomes the mode in which the user specifies the range for character recognition.
Only the handwritten character strokes in the range designated by the user are character-recognized and converted into text.

When the "double-width" button (506-4) is designated, the mode in which the user designates the range desired to be double-width is entered, and the text and handwritten character strokes in the designated range are enlarged to double-size.

"Stroke compression" button (506-5)
When is selected, the stroke data amount is compressed. That is, processing is performed to extract only the data of the characteristic points of the stroke so that the displayed shape does not collapse. The extraction of the feature points can be performed by using the approximation process of character recognition for the handwritten character strokes and the approximation process of figure recognition for the drawing memo strokes, for example. When handwritten character strokes are compressed using approximate processing of character recognition,
When recognizing characters later, it is possible to prevent a reduction in recognition rate. Further, if the approximate processing of figure recognition is used for the drawing memo stroke, it is possible to perform compression while leaving the figure of the drawing memo clean. When the stroke is compressed, the display data may be generated by applying, for example, a function for generating a spline curve to the feature points.

"All data file" button (506-
When 6) is selected, all the data of the handwritten character stroke 4122, the text 4121, the drawing memo stroke 4123, and the image 4124 are output to the same file (each data is a separate file, and a file indicating the relationship between them is also output. May be).

"Individual data file" button (506-
7) is specified, the text 4125, the stroke (handwritten character stroke + drawing memo stroke) 4126,
And the image 4127 are output to individual files (in this case, the image file may output the entire screen of the memo pad (including text and strokes) as image data).

Next, a text input button ("line feed" button (505-1) and "space" button (505-
2), "Backspace" button (505-3)) will be described. These text buttons are valid for character data (text and handwriting strokes),
"Line feed" button (505-1), "Space" button (505-2), "Backspace" button (505-
3) can be entered like ordinary text.
For example, in the example of the screen, a line feed is input by the "line feed" button (505-1) between "tegara nigomega" and "you can enter". Furthermore, in the example of FIG. 5, "change between lines"
A bar (507) is provided so that the line spacing can be widened or narrowed.

Next, the processing of the handwriting data input device in the second embodiment will be described using the processing flow charts of FIGS. In these process flow charts, a rectangular quadrangle represents a general process, a pentagon with two corners on the right side represents a branch of the process, and a quadrangle with a line drawn at both ends of the rectangle represents another process. It is shown that the detailed processing is described in the figure.

First, the overall processing flow will be described with reference to FIG. A user's handwriting input is acquired by the input unit (401) (step 601). Whether the data input from the input unit (401) by the input data determination unit (403) is character data, drawing memo data, text input button designation, or menu designation, It is determined whether the line spacing is changed (step 602).

Specifically, if the input data is input in the character input box (203), it is determined that it is character data. When input is made from any other position (further, the position is other than the text input button, the menu button, and the "change line spacing" bar), the input stroke data is determined to be drawing memo data. If it is the position of the text input button, it is determined to be the selection of the text input button. If it is the position of the menu button, it is determined to be the selection of the menu. It is determined that the change is designated.

When the input data determination unit (403) determines that the input data is character data (step 603: Y), the handwritten character data management unit (404).
Performs handwriting character stroke buffering processing (step 603-1). The handwritten character stroke buffering process (step 603-1) of the handwritten character data management unit (404) will be described later in detail with reference to FIG. 7.

When the input data determination unit (403) determines that the input stroke data is the drawing memo data (step 604: Y), the input data is buffered as the drawing memo stroke (step 604-). 1). That is, strokes are directly buffered without cutting out characters.

When the input data determination unit (403) determines that the text input button is selected (step 605: Y), the processing corresponding to each text input button is performed (step 605-1). . The process of the text input button (step 605-1) will be described later in detail with reference to FIG.

When the input data judging section (403) judges that the menu is selected (step 606: Y), the processing corresponding to each menu is performed (step 606-1). Regarding the processing of the menu,
The details will be described later with reference to FIGS. 9 and 10.

If the input data determination unit (403) determines that the line spacing change is designated (step 607: Y), the line spacing change process is performed (step 6).
07-1). (Line spacing change processing (step 607-1) will be described later with reference to FIG. 11.)

Then, the display synthesizing unit (411) synthesizes the text, the handwritten character strokes, the drawing memo strokes, and the image in accordance with the layer information of the layer managing unit (410) to generate display data ( Step 608). That is, an image is created by superimposing the text, the handwritten character stroke, the drawing memo stroke, and the image in a predetermined order managed by the layer management unit (410).

Then, the display section (402) displays the display data generated by the display composition section (411) on the screen (step 609). The above is the description of the overall processing flow of the handwriting data input device according to the second embodiment of the present invention.

FIG. 7 shows a buffering process of handwritten character strokes in the character data management unit (404) (step 6).
03-1) is a diagram for explaining (03-1). The character data management unit (404) cuts out the input data (stroke) for each character to make handwritten character stroke data (step 603-1-1). For character cutting, it is determined that the strokes written in the character input frame are the same character, and the data is set for each character. In addition, if a frame (cutout frame) that surrounds the stroke is displayed, and it is written in that frame, it is determined that it is the same character and it is cut out, or strokes drawn with a certain distance apart are written in different characters. There is also a method of determining that there is.

Next, the stroke enlarging / reducing unit (407) enlarges / reduces the handwritten character stroke cut out for each character to a size according to the line spacing (step 603-).
1-2). A handwritten character stroke is displayed at the cursor position and the handwritten character stroke data is buffered (step 603-1-3). The above is the description of the handwriting character stroke buffering process (step 603-1) of the character data management unit (404).

FIG. 8 is a diagram for explaining the processing of the text input button (step 605-1). "new line"
When the button (505-1) is designated (step 605-1-1: Y), a line feed code is inserted at the cursor position of the text data (step 605-1-1).
-1). Further, the position after the cursor position of the handwritten character stroke data is changed to the next line (step 605-).
1-1-2). Then, the cursor display position is moved to the next line (step 605-1-1-3).

If the "Space" button (505-2) has been designated (step 605-1-2: Y),
A space is inserted at the cursor position of the text data (step 605-1-2-1). Further, the position after the cursor in the handwritten character stroke data is changed to the position one character behind (step 605-1-2-2). Then, the cursor display position is moved backward by one character (step 605-1-2-3).

"Backspace" button (505-3)
Is specified (step 605-1-3:
Y), the character before the cursor position in the text data is deleted (step 605-1-3-1). Further, the handwritten stroke before the cursor position of the handwritten character stroke data is deleted (step 605-1-3-2), and the handwritten character stroke data after the cursor position is changed to the position one character before (step 605-). 1-3-3).
Then, the cursor display position is moved forward by one character (step 605-1-3-4). The above is the description of the processing of the text input button (step 605-1).

Next, the menu processing (step 606-1) will be described in detail with reference to FIGS. 9 and 10. The two figures in FIGS. 9 and 10 are used because it is not possible to draw all the processing in one figure, and the processing in which the circles (900) in FIGS. 9 and 10 are connected. Is the whole menu processing.

First, a description will be given with reference to FIG. If the menu of the "image selection" button (506-1) is designated (step 606-1-1: Y), the image data management unit (40
9) acquires the image selection range of the user (step 606).
-1-1-1), and the image of the selected range is acquired (step 606-1-1-2). Further, the image data management unit (409) obtains the user's desired image pasting position (step 606-1-1-3), pastes the image at that position, and buffers the data (step 606).
-1-1-4).

If the menu of the "recognize all characters" button (506-2) is designated (step 606-1-2: Y), the handwritten character stroke stored in the character data management unit (404) is changed to the character recognition unit ( 406) to convert to text,
Buffering is performed (step 606-1-2-1).
Then, the character data management unit (404) sets a text converted flag for all handwritten character strokes (step 606-1-2-2).

If the menu of the "partial character recognition" button (506-3) is designated (step 606-1-3: Y),
The character data management unit (404) acquires the character recognition target range (step 606-1-3-1), and the character data management unit (404) uses the character recognition unit (406) to write the handwritten character stroke of the character recognition target range. Convert to text and buffer (step 606-1-3-2). And
The character data management unit (404) sets a text-converted flag for the handwritten character stroke that is the target of character recognition (step 606-1-3-3).

If the "double angle" button (506-4) is designated in the menu (step 606-1-4: Y), the character data management unit (404) acquires the handwritten stroke and the text in the double angle designation target range (step). 606-1-4-
1), the handwriting stroke and the text in the double-angle designation target range, and the positions of the subsequent handwriting stroke and the text are moved to the lower line (step 606-1-4-2). Then, the stroke enlarging / reducing unit (407) enlarges the target handwritten character stroke to double size. Further, the character data management unit (404) changes the font size of the text in the double-width specification target range to double-width.

The following menu processing will be described with reference to FIG. If the "stroke compression" button (506-5) is designated in the menu (step 606-1-5: Y), the character data management unit (404) is buffered by the stroke compression / expansion unit (408). The handwritten character stroke is compressed (step 606-1-5-1). The compression of strokes can be performed, for example, by using the stroke approximation processing of character recognition software or the stroke approximation processing of figure recognition software to extract only the characteristic coordinates on the stroke. Then, the character data management unit (404) converts the handwritten character stroke into
Set the compressed flag (step 606-1-5)
2).

When compressing strokes, stroke approximation processing of character recognition software is applied to handwritten character strokes, and drawing memo strokes are applied to drawn memo strokes.
It can also be used separately, for example, by applying stroke approximation processing of figure recognition software. Then, when recognizing a handwritten character stroke later, it is not necessary to reduce the recognition rate. Also, the stroke of the drawing memo can be compressed while retaining the shape of the map.

"All data file" button (506-
6) If the (Save) menu is specified (step 606-
1-6: Y), the file input / output unit (412) refers to the text, handwritten character stroke, drawing memo stroke, and image data (step 606-1-6-).
1) If the stroke is compressed (step 606-1-6-2: Y), the text, the compressed handwritten character stroke and the drawing memo stroke, and the image are collectively stored in a file. (Step 606
-1-6-2-1). If the stroke is not compressed (step 606-1-6-2), the text, the uncompressed handwritten character stroke, the drawing memo stroke, and the image are collectively stored in a file (step 606-1-). 6-2-2). (In addition to saving all at once, the file should be an individual data file,
There is also a method of filing information indicating their relation. )

"Individual data file" button (506-
7) If the (Save) menu is specified (step 606-
1-7: Y), the file input / output unit (412) refers to the text, handwritten character stroke, drawing memo stroke, and image data (step 606-1-7-).
1) If the strokes are compressed (step 606-1-7-2: Y), the text, the compressed strokes (handwritten character strokes and drawn memo strokes), and the image are individually separated. Save the file (step 606-1-7-2-1). If the stroke is not compressed (step 606-
1-7-2: N), text, uncompressed strokes (handwritten character strokes and drawing memo strokes),
And the image are saved in separate files (step 606-1-7-2-2). At this time, the image file may store an image in which text, strokes (handwritten character strokes, drawing memo strokes), and images are combined.

"File open" button (506-
If the menu of 8) is specified (step 606-1-8:
Y), the file input / output unit (412) reads the file specified by the user (step 606-1-8-).
1). At this time, if the stroke is compressed (step 606-1-8-2: Y), the compressed stroke is extended (step 606-1-8-2-1).
The expansion of the compressed stroke can be executed by applying a function for generating a spline curve to the coordinates of the characteristic points of the compressed stroke, for example. The above is the description of the processing flow of the menu processing (step 606-1).

Next, the line spacing changing process (step 607-1) will be described with reference to FIG. First, a ruled line that matches a new line specified by the user is displayed (step 607-1-1). Then, the character data management unit (40
4) calculates the changed position of the character (text, handwritten character stroke) that matches the new line spacing (step 607).
-1-2). Then, the character data management unit (404)
Replace the text with a font that fits the new line spacing (step 607-1-3). Further, the character data management unit (404) is used by the stroke enlargement / reduction unit (4
07), the handwritten character stroke is changed to a size suitable for the new line, and the display position of the character data (text, handwritten character stroke) is also changed to the position suitable for the new line (step 607-1-4). The above is the description of the processing flow of each menu processing. As described above, the handwriting data input device according to the second embodiment of the present invention can be realized.

Further, the above-mentioned processing flow is coded into a program for operating a computer, and the CD-RO is executed.
The handwritten data input method of the present invention can be widely spread by recording it on a computer-readable recording medium such as M, DVD, or FD and distributing it in the market.

As described in detail above, according to the above-described embodiment, when input is started from a specific position, it is regarded as character data, and handwriting strokes are performed while cutting out characters for each character. It is possible to realize a handwriting data input device that saves stroke data that is freely handwritten by regarding it as drawing memo data (figure, picture, etc.) when inputting is started from another position. According to this handwriting data input device, strokes of handwritten characters can be easily recognized later and converted into text,
It is possible to edit each character, and you can also freely write drawing memos such as figures and pictures. By converting handwritten strokes into text by character recognition,
It is possible to use it by sending only the character part by general mail, or reuse it by searching it later as text and using it, and display the handwritten character stroke neatly according to the line or the grid of the manuscript paper. It is also possible.

[0072]

According to the present invention, since the stroke of a handwritten character is cut out character by character when inputting, the character can be easily recognized later and converted into a text.
It is possible to edit for each character. You can also freely write drawing memos such as figures and pictures. By converting handwritten strokes into text by character recognition, it is possible to use them by sending only the part of the letters by ordinary mail, or by reusing them as text and searching for them later. Strokes can be displayed neatly according to the lines and the grids of the original paper.

[Brief description of drawings]

FIG. 1 is a functional block diagram of a handwriting data input device that is a first embodiment of the present invention.

FIG. 2 is a schematic screen view of the handwriting data input device according to the first embodiment of the present invention.

FIG. 3 is a process flow diagram of the handwriting data input device according to the first embodiment of the present invention.

FIG. 4 is a functional block diagram of a handwriting data input device according to a second embodiment of the present invention.

FIG. 5 is a schematic screen view of a handwriting data input device according to a second embodiment of the present invention.

FIG. 6 is a process flow chart of the handwriting data input device according to the second embodiment of the present invention.

FIG. 7 is a process flow diagram of the handwriting data input device according to the second embodiment of the present invention.

FIG. 8 is a process flow diagram of the handwriting data input device according to the second embodiment of the present invention.

FIG. 9 is a process flow chart of the handwriting data input device according to the second embodiment of the present invention.

FIG. 10 is a process flow chart of the handwriting data input device according to the second embodiment of the present invention.

FIG. 11 is a process flow diagram of the handwriting data input device according to the second embodiment of the present invention.

FIG. 12 is a configuration diagram of a handwriting data input device according to the first embodiment of the present invention.

[Explanation of symbols]

101: Input section 102: display unit 103: Input data determination unit 104: Character data management unit 105: Drawing memo data management unit 106: Character recognition unit 201: Handwriting data input application screen 202: Stylus pen 203: Character input start frame 204: Character cutout frame 205: Character recognition button (menu) 206: Ruled line 207: Cursor 401: Input section 402: Display unit 403: Input data determination unit 404: Character data management unit 405: Drawing memo data management unit 406: Character recognition unit 407: Stroke enlargement / reduction section 408: Stroke compression / expansion section 409: Image data management unit 410: Layer management unit 411: Display composition unit 412: File input / output section 501: Handwriting data input application screen 502: Stylus pen 503: Character input frame 504: Cursor 505: Text input button (menu) 506: Menu button 507: Line spacing change button 508: Desktop screen 509: Desktop screen image 510: Ruled line 1041: text 1042: Handwritten character stroke 1051: Drawing memo 1201: Input device 1202: Output device (display device) 1203: CPU 1204: storage device

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-6-110993 (JP, A) JP-A-6-1119496 (JP, A) JP-A-6-150064 (JP, A) JP-A-7- 28951 (JP, A) JP 60-136890 (JP, A) JP 60-204089 (JP, A) JP 60-233780 (JP, A) JP 60-233781 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) G06K 9/00-9/82

Claims (9)

(57) [Claims] 1. In a handwriting data input device having an input means for inputting handwritten data and a display means for displaying the input data, a handwriting data input device is provided at a position of a cursor indicating an input start position of text data.
When data is entered or text data is entered
After data is entered at the position of the cursor that indicates the start position
If data is input before a certain period of time,
If the input data is judged as handwritten characters,
When the input data is determined to be a character, the input data is cut out for each character and saved as a handwritten character stroke. , 1 when a character recognition request is made
Character data management means that converts the handwritten character strokes cut out for each character into text using character recognition means and saves it, and input data when input data is determined to be a drawing memo. A handwritten data input device, comprising: a drawing memo data management unit for saving without cutting out. 2. The handwritten data input device according to claim 1, further comprising a plurality of stroke compression means, wherein different stroke compression means are used according to the type of input data. . 3. The handwriting data input device according to claim 2 , wherein when the input data is handwritten character data, an approximation method of character recognition is used as the stroke compression means. . 4. A handwritten data input method for inputting and displaying handwritten data, wherein the handwriting data is displayed at the position of a cursor indicating the input start position of text data.
When data is entered or text data is entered
After data is entered at the position of the cursor that indicates the start position
If data is input before a certain period of time,
If the input data is judged as handwritten characters,
In the case where the input data is determined to be a drawing memo, and the input data is determined to be a handwritten character,
The input data is cut out for each character and saved as a handwritten character stroke, and the handwritten character stroke cut out for each character is converted into text using a character recognition method and saved. A handwritten data input method, characterized in that input data is saved without being cut out when it is determined to be a drawing memo. 5. The handwritten data input method according to claim 4, wherein the input data is compressed by using different stroke compression methods depending on the type of the input data. 6. The handwritten data input method according to claim 5, wherein when the input data is handwritten character data, an approximation method of character recognition is used for compressing strokes. 7. A medium that records handwritten data input method of displaying the handwritten data, text de
Data is input at the cursor position that indicates the input start position of the data
When inputting text or input start position of text data
A certain period of time after the data is input at the cursor position
If the data is input by the time it is input
The data is judged as handwritten characters, and in other cases, the input
The process of determining the drawn data as a drawing memo, the process of cutting out the input data for each character and saving it as a handwritten character stroke when the input data is determined to be a character, and the process for each character The process of converting the handwritten character strokes cut out in to the text by using the character recognition method and saving it, and when the input data is determined to be a drawing memo, the input data is saved without being cut out. A computer-readable recording medium characterized in that the processing to be performed is recorded as a program code. 8. The computer-readable recording medium according to claim 7 , wherein the input data is compressed using different stroke compression methods according to the type of the input data. 9. The computer-readable recording medium according to claim 8 , wherein when the input data is handwritten character data, an approximation method of character recognition is used for compression of strokes.