JPH11296271A - Handwritten character input method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display a front of the font size corresponding to the size of an input character by handwriting input of different font size without the need to specify a font size by a font setting function. SOLUTION: A memory 1 (4) stores items of low frequency of rewriting, a memory 2 (5) stores items of high frequency of rewriting as compared with the memory 1, and a memory 3 (6) is used as a work area mainly for a program stored in the memory 2. Through a handwriting input process stored in a memory 2, a font of the size corresponding to the size of handwritten characters inputted to a handwriting input frame is displayed. Namely, when large characters are handwritten and inputted, a large font is displayed and when small characters are handwritten and inputted, a small font is displayed. Consequently, handwriting input of different font size becomes possible.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a handwritten character input method in an information processing apparatus having a handwritten character recognition function.

[0002]

2. Description of the Related Art Conventionally, in an information processing apparatus having a handwritten character recognition function, different sizes and types of fonts can be designated by a display font setting function and the like. In the display processing, when characters are displayed on a display such as an LCD, a font of a size and a type according to the font specification is displayed.

In handwritten character input, a character code can be returned as a character recognition result. The host software displays the character code and a font of a size and a type according to the font specification.

[0004]

However, in the above-mentioned conventional example, for example, in a system in which figures and characters are input by handwriting on one screen, when it is desired to input fonts of different sizes, the font There is a drawback in that the font size must be designated each time by the setting function, which is troublesome.

The present invention has been made in view of the above points. In the above-described system, it is not necessary to specify a font size by a font setting function, and handwriting in a different font size is required. An object of the present invention is to provide a handwritten character input method that can achieve a purpose by input.

[0006]

The present invention can solve the above-mentioned problems by providing the following constitution.

(1) In an information processing apparatus having a handwritten character recognition function, a large font is displayed when large characters are input by handwriting, and a small font is displayed when small characters are input by handwriting. A handwriting character input method, comprising a font display means for displaying a font having a font size corresponding to (1).

(2) The method for inputting handwritten characters according to the above (1), further comprising input frame display means for displaying an input frame for each font size.

(3) A handwritten character input as described in the above item (1), further comprising a lowercase conversion means for converting a character recognition result to a lowercase when a lowercase designation gesture is performed on an input frame for each font size. Method.

(4) Handwriting according to any one of the above (1) to (3), further comprising a center line display means for displaying vertical and horizontal center lines for an input frame for each font size. Character input method.

(5) The size of the rectangular frame surrounding the handwritten input character and the size of the input frame is compared with the size of the input frame, and the font size to be displayed is determined based on the result. ) Described handwritten character input method.

(6) The font size of a character input after the second character is adjusted to the font size of a handwritten character input to the first first character.
Handwritten character input method described.

[0013]

Embodiments of the present invention will be described below.

FIG. 1 is a block diagram showing an example of the configuration of an information processing apparatus for realizing this embodiment.
A display unit such as a CD, 3 is an input unit such as a digitizer or a touch panel, 4 is a memory for storing items whose rewriting frequency is low, and 5 is a flash memory for storing items whose rewriting frequency is higher than that of the memory 1. The memories 2 and 6 are memories 3 such as a RAM mainly used for a work area of a program stored in the memory 2.

The fonts stored in the memory 1 are files storing display character font data of 24 × 24 dots, 16 × 16 dots, and 12 × 12 dots for realizing the present embodiment. And a kana-kanji dictionary storing data for converting a kana-kanji character.

FIGS. 2A and 2B show an example of a handwriting input frame for realizing this embodiment. Reference numeral 7 denotes a 24 × 24 box which is an input frame for inputting a 24 × 24 dot font by hand. Is a 16 × 16 box as an input frame for inputting a 16 × 16 dot font by hand, and 9 is a 12 ×
A 12 × 12 box, which is an input frame for inputting a 12-dot font by hand, is a center line for making it easy to understand input locations such as lowercase letters and punctuation marks. The display attributes for displaying / hiding these input frames and center lines and for displaying them are system-dependent, but it is desirable that the display attributes do not hinder handwriting input. For example, 24 ×, which is the maximum size input frame. It is easy to understand that the 24 boxes are black, the other input frames are gray, and the center line is a gray dotted line or a dashed line. Further, FIG. 2A has a difference that the reference point of the input frame is centered, and FIG. 2B has a difference that the reference point of the input frame is lower left. FIG. 2B is based on the premise that no lowercase letters or punctuation marks are input as the first character.

FIGS. 3 and 4 are flowcharts of a handwriting input process for realizing the first embodiment, and FIG.
FIG. 6 is an explanatory diagram showing an example of a rectangular frame inscribed in handwriting for realizing the present embodiment, and 11 is a rectangular frame inscribed in handwriting. FIG. 7 is an explanatory diagram showing an example of a lowercase designation gesture for realizing the present embodiment. Reference numeral 12 denotes a lowercase designation gesture.

The embodiment according to the present invention is realized by a handwriting input process stored in the memory 2, and FIG.
A font having a size corresponding to the size of a handwritten character input to the handwriting input frame shown in (a) or (b) is displayed, and a font having a size corresponding to the size of the handwritten character drawn in the handwriting input frame is displayed. Is displayed, or a lowercase character is input by performing a lowercase designation gesture for the input frame of each font size.
The method of realizing the two embodiments will be described with reference to the flowcharts of FIGS.

The handwriting input processing in the present embodiment means that the handwriting data of the handwritten character input to the handwriting input frame shown in FIG. And display unit 2
Indicates a series of processing until displayed in.

(First Embodiment) FIGS. 3 and 4 are flowcharts of a handwriting input process for realizing the first embodiment.

Hereinafter, the first embodiment will be described with reference to the above-described configuration and the flowcharts of FIGS. 3 and 4.

In step S301, handwritten characters are input into the handwriting input frame shown in FIG. 2A to create handwriting data. 12 × 12 to display 12 × 12 font
To fit within a box, a 16x16 font fits within a 16x16 box with 12x12 or more boxes, and a 24x24 font fits within a 24x24 box with 16x16 boxes or more. Enter handwritten characters as shown. Handwriting data is generally created while performing handwriting input.

In step S302, the handwriting data created in step S301 is subjected to character recognition. As a result of character recognition, it is common to return a character code group that matches handwritten characters and the number thereof.

In step S303, it is determined whether there is a matching character as a result of character recognition. If there is a matching character, the process proceeds to step S304, and if there is no matching character, the handwriting input process ends.

In step S304, the upper left X dot coordinate, the upper left Y dot coordinate, the lower right X dot coordinate, and the lower right Y dot coordinate of the rectangular frame inscribed in the handwritten character are calculated.

In step S305, it is determined whether or not there is a gesture for designating a lowercase letter in the 12 × 12 box. If there is a lowercase designation gesture, step S31
The process jumps to 0 and proceeds to step S306 if there is no lowercase designation gesture. The method of determining the lowercase gesture is system-dependent. For example, it is conceivable to add the gesture to the gesture function of each system.

In step S306, it is determined whether there is a gesture for designating a lowercase letter in the 16 × 16 box. If there is a lowercase designation gesture, step S30
The process jumps to step S9, and if there is no gesture for designating a lowercase letter, the process proceeds to step S307.

In step S307, it is determined whether or not there is a lowercase designation gesture in the 24 × 24 box. If there is a lowercase designation gesture, step S30
Then, if there is no gesture for designating a lowercase letter, the process proceeds to step S311.

Steps S308 to S310 are separately described because the processing to be performed thereafter is different. However, since the processing contents are all common and there is a lowercase designation gesture, the match character is converted to lowercase. If the match character is originally a lowercase letter or a character that cannot be converted to a lowercase letter, no conversion is performed. After this processing, step S308 is S
To step S313, step S309 to step S314, and step S314.
310 proceeds to S315.

In step S311, it is determined whether the rectangular coordinates calculated in step S304 are within a 12 × 12 box. If it is inside the box, the process jumps to step S315, and if it is not inside the box, it jumps to step S312.
Go to

In step S312, it is determined whether or not the rectangular coordinates calculated in S304 are within a 16 × 16 box. If it is inside the box, go to step S314; otherwise, go to step S313.
Go to

In step S313, since the rectangular coordinates calculated in step S304 are within the 24 × 24 box,
In step S314, the font for the dot is 16 × 1
In step S315, the font for 6 dots is 12 ×
A font for 12 dots is read.

In step S316, S313 to S315
Is displayed on the display unit 2.

As described above, the characters are displayed in the font size according to the size of the characters input by handwriting. If there is a lowercase designation gesture, it means that lowercase input has been performed.

(Second Embodiment) FIG. 5 is a flowchart of a handwriting input process for realizing the second embodiment.
The font of the corresponding size is displayed according to the size of the handwritten character input to the handwriting input frame, and the characters to be input thereafter are displayed according to the font size of the handwritten character input as the first character, and it is realized. The method will be described with reference to the flowchart of FIG.

In step S501, handwritten characters are input into the handwriting input frame shown in FIG. 2A or 2B to create handwriting data. If this is the first character, 12
If you want to display a × 12 font, fit it in a 12 × 12 box, or a 16 × 16 font
In the case of a 24 × 24 font, handwritten characters are input so that 12 or more boxes fit in a 16 × 16 box and in the case of 24 × 24 fonts, 16 × 16 boxes or more fit in a 24 × 24 box. If it is the second character or later, it can be adjusted to the font size of the first character by the method described below,
You can input without depending on the input size.

Further, when an input is made in an area such as 30% or 20% of the entire input frame, characters are usually recognized as lowercase letters or punctuation marks. There is no need to enter in the size considered. In general, handwriting data is created while performing handwriting input.

In step S502, character recognition is performed on the handwriting data created in step S501. As a result of character recognition, it is common to return a character code group that matches handwritten characters and the number thereof.

In step S503, it is determined whether there is a matching character as a result of character recognition. If there is a match character, the process proceeds to S504, and if there is no match character, the handwriting input process ends.

In step S504, the number of X-direction dots and the number of Y-direction dots of the rectangular frame inscribed in the handwritten character are calculated.

In step S505, it is determined whether or not the input is the first character. If it is the first character, the process proceeds to S506. If it is not the first character, the process proceeds to S508 because there is no need to match the font size. The method of designating the “first character” depends on the system, but it is conceivable that the system is provided with a “function from next input as first character” function. For example, if the function is issued when the character input location is changed by the graphic input software, the next input is the first character.

On the other hand, in step S508, the first character is 1
It is determined whether the font is a 2 × 12 dot font. If it is a 12 × 12 dot font, go to S512, otherwise go to S509.

In step S509, the first character is 16 ×
It is determined whether the font is a 16 dot font. 1
If it is a 6 × 16 dot font, go to S511, otherwise go to S510.

In step S506, it is determined whether the size of the rectangular frame calculated in step S504 is equal to or smaller than 12 × 12 boxes. If it is below, go to S512, and if it is above, go to S507.

In step S507, it is determined whether or not the rectangular frame size calculated in S504 is smaller than or equal to 16 × 16 boxes. If it is below, go to S511,
If so, the process proceeds to S510.

In step S510, since the rectangular frame size calculated in S504 is equal to or less than 24 × 24 boxes,
The font for × 24 dots is 16 × 16 in S511.
In step S512, a font for 12 × 12 dots is read out.

In the next step S513, S510 to S5
The font read out at step 12 is displayed on the display unit 2.

As described above, the characters are displayed in the font size according to the size of the characters input by handwriting. In addition, the characters to be subsequently input are displayed according to the font size of the handwritten character input as the first character.

[0049]

As described above, the first embodiment according to the present application is described.
According to the invention, the font size is specified by using the font setting function by having a means for displaying a large font when inputting by handwriting with large characters and displaying a small font when inputting by handwriting with small characters. Without this, it is possible to realize handwriting input with different font sizes.

According to the second aspect of the present invention, the provision of the input frame display means for each font size facilitates input with different font sizes, and different font sizes are mixed. Enable input.

According to the third aspect of the present invention, when the lowercase designation gesture is performed on the input frame for each font size, the means for converting the character recognition result to lowercase letters is provided, so that the font size is conscious. You can enter lowercase letters without having to do so.

According to the fourth aspect of the present invention, by providing the means for displaying the center line, the input location of lowercase letters, punctuation, and the like can be easily understood.

According to the fifth aspect of the present invention, the size of the rectangular frame inscribed in the handwritten input character is compared with the size of the input frame to determine the font size to be displayed. It is possible to input a handwritten character in a free place without any change.

According to the sixth invention of the present application, the font size of the character input after the second character is made to match the font size of the handwritten character input to the first character, so that the input frame of the second character and thereafter is It is possible to input without worrying about the size. Furthermore, even when entering lowercase letters and punctuation marks, there is no need to match the font size,
These inputs become easier. As described above, the effects of six items are exhibited.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one configuration example of an information processing apparatus for realizing a handwritten character input method according to the present invention.

FIGS. 2A and 2B are explanatory diagrams showing an example of a handwriting input frame; FIGS.

FIG. 3 is a flowchart illustrating a handwriting input process according to the first embodiment;

FIG. 4 is a flowchart illustrating a handwriting input process according to the first embodiment;

FIG. 5 is a flowchart illustrating handwriting input processing according to a second embodiment.

FIG. 6 is an explanatory diagram showing an example of a rectangular frame inscribed in a handwriting

FIG. 7 is an explanatory diagram showing an example of a lowercase designation gesture;

[Explanation of symbols]

 1 CPU 2 display unit 3 input unit 4 memory 1 5 memory 2 6 memory 3 7 24 × 24 box 8 16 × 16 box 9 12 × 12 box 10 center line 11 rectangular frame inscribed in handwriting 12 lowercase designation gesture

Claims (6)

[Claims] In an information processing apparatus having a handwritten character recognition function, a large font is displayed when a large character is input by handwriting, and a small font is displayed when a small character is input by handwriting. A handwritten character input method comprising a font display means for displaying a font having a corresponding font size. 2. The handwritten character input method according to claim 1, further comprising input frame display means for displaying an input frame for each font size. 3. The handwritten character input method according to claim 1, further comprising a lowercase conversion unit that converts a character recognition result to a lowercase when a lowercase designation gesture is performed on an input frame for each font size. 4. An input frame for each font size,
4. The handwritten character input method according to claim 1, further comprising a center line display unit for displaying a horizontal center line. 5. The size of a rectangular frame surrounding a handwritten input character and the size of the input frame is compared with the size of the input frame, and the font size to be displayed is determined based on the result. How to input handwritten characters. 6. The handwritten character input method according to claim 1, wherein the font size of the character input after the second character is matched with the font size of the handwritten character input to the first character.