JPH06150064A - Handwritten character and graphic input device - Google Patents

Abstract

PURPOSE:To provide the handwritten character and graphic input device for recognizing either a graphic or a character basing on a stroke plotted on a tablet or the size of a character and further automatically deciding the size of a character font to be displayed when the character is inputted. CONSTITUTION:This device is provided with a character size judging means 15 for judging the stroke or the size of the character from handwritten input data from a tablet (input means 11) and a display control means 16 for outputting instructions so as to judge whether the input is the character or the graphic basing on this judged result, to select the character font to e displayed from fonts stored in a display font storage means 14 in the case of the character and to display this font at a display means 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handwritten character / graphics input device for inputting from a tablet with a pen.

[0002]

2. Description of the Related Art In recent years, with the progress of character and figure recognition technology, handwriting input with a pen has started to be used for inputting characters and symbols in CAD (Computer-Aided Design, personal computer) and word processors. ing. Hereinafter, a handwritten character / graphic input device according to the related art will be described with reference to the drawings.

FIG. 6 shows the construction of an example of the handwritten character / graphics input device. In the figure, 11 is an input means, which is usually composed of a tablet and a pen. Then, stroke data (a locus of the pen consisting of a single line) such as handwritten characters and figures is input to the tablet with the pen. Here, the tablet is also called a digitizer or a coordinate indicator, and in order to detect the movement and position coordinates of the pen on the flat plate, the pen contact detection end consisting of a thin line is vertically and horizontally oriented in a grid pattern. Alternatively, it is possible to detect the coordinates of the pen contact position by densely arranging in a grid pattern. There are various types of pen contact detection principles such as an electromagnetic induction method and an acoustic method. The pen is also called a light pen, and there are various types such as a suppression type and a light emitting type as a system that acts on the detection end in the above-mentioned tablet. A recognizing means 12 executes character recognition or graphic recognition processing for character input and graphic input by collation or the like. Reference numeral 13 is a display means including a CRT, a printer, and the like, and displays a character font (font, a fixed font, which is also referred to as a "font" because symbols are also targets) as a recognition result or a figure. Reference numeral 14 is a display font storage means, which is hard to read in the display means 13 as it is in a handwritten form, so that the character font to be displayed after being stylized is stored as an electromagnetic signal. 6
Reference numeral 5 is a designation means for designating a character input or a graphic input, and other designation such as a display position of a character and a font type. In addition to the above, it is needless to say that the printer, the clock signal generator, the keyboard, the mouse, the CPU, the floppy disk storage unit, and other accessory devices required as a handwritten character / figure input device are provided. However, since it is well known, illustration and description thereof will be omitted.

The operation of the handwritten character / graphics input device configured as described above will be described below. First, the operator inputs characters or figures by handwriting with the pen from the input means 11. Here, in order to recognize the character input or the graphic input and to determine the type of the font to be displayed, the operator (input person) normally inputs a program from the keyboard or tablet to the designating means 65 before inputting the handwriting stroke. It is performed by specifying the specific switching operation or a predetermined procedure. The input one point or the stroke composed of one point is sent to the recognition means 12 as an electric signal. In the case of character recognition, the recognition means 12 recognizes the stroke input as one character by collation with a built-in sample dictionary (not shown) or the like to specify the character intended by the operator. It should be noted that stroke recognition for one character is specified separately by the input person, when the input time interval of each stroke is compared with the reference time, and when there is a new input of a stroke to a predetermined division in the tablet. A method such as determining that the input of the previous character has been completed by the stroke one stroke before the stroke and that a new character input has started from the stroke is adopted. Next, in the case of figure recognition, processing such as correction of line deviation correction according to a predetermined program is executed. Further, the recognition result is sent to the display means 13. Finally, in the character recognition, the input character is finally specified, the font specified above is taken out from the display font storage means 14, and this character is displayed.
Further, in the graphic processing, the input graphic is displayed after being subjected to predetermined correction and the like.

[0005]

However, in the above-mentioned configuration, firstly, in the case of character input, the operator performs a separate operation to determine the size of the character to be displayed as a result of character recognition. Must be specified. Secondly, the operator must specify whether the input data from the input means is character input or graphic input before inputting. Therefore, an additional input means is required for the device, which not only increases the cost of hardware but also limits the installation location of the large-sized operation panel. In addition, an operator requires more labor than writing characters or figures directly on paper, which may be an obstacle to learning.

Moreover, in recent years, not only in design drawings but also in ordinary documents, for example, important description parts are surrounded by squares,
This problem becomes more important as documents such as headings and other important parts such as large characters are used, and documents with a mixture of characters and graphics or drawing-like documents are used frequently. It has become to. In view of the above, claim 1
According to another aspect of the present invention, there is provided a handwritten character / graphic input device for automatically determining, in the case of character input in order to solve the first problem, the size of a character to be displayed as a result of character recognition. It was made for the purpose of providing.

In order to solve the above-mentioned second problem, an object of the present invention is to provide a handwritten character / graphics input device for automatically determining whether an input is a character input or a graphic input. It was made. In order to solve the first and second problems, the inventions of claim 4 and claim 5 automatically determine whether the input is a character input or a graphic input, and if it is further determined that the input is a character, The purpose of the present invention is to provide a handwritten character / graphic input device that automatically determines the size of the character to be displayed as a result of character recognition.

[0008]

In order to achieve the above object, in the invention of claim 1, an input unit for inputting handwritten coordinate data with a pen, and a character for the input data input by the input unit. A recognition unit that performs recognition or figure recognition, and whether the input data input by the input unit is recognized by a predetermined procedure according to a predetermined procedure, and the recognition unit performs character recognition based on the result. In the handwriting character / graphic input device, a recognition switching unit for instructing whether or not to perform the recognition, a display unit for displaying the recognition result, and a display font storage unit for storing a font for character display of the recognition result are provided. When it is determined that the recognition target data is a character as a result of the recognition of the copy, the character size determination unit that determines the character size of the handwritten coordinate data obtained from the input unit, and the character size A display control unit that determines a display font according to a predetermined procedure from displayable fonts stored in the display font storage unit according to the input character size obtained by the determination unit, and instructs the display unit to display. The handwriting character / graphic input device is characterized by having.

According to another aspect of the present invention, the display control unit determines a character size of the input handwritten character and a character font to be displayed as a recognition result, as a predetermined procedure. The handwritten character / graphic input device according to claim 1, further comprising a correspondence display font determining unit that holds the correspondence table and determines the correspondence display font based on the correspondence table.

According to another aspect of the present invention, an input unit for inputting handwritten coordinate data with a pen, a recognition unit for performing character recognition or graphic recognition on the input data input by the input unit, and a recognition result A stroke for determining a stroke size of handwritten coordinate data obtained from the input unit in a handwritten character / graphics input device having a display font storage unit for storing a font for displaying characters and a display unit for displaying a recognized result. When the size of the input handwriting stroke obtained by the size determination unit and the stroke size determination unit is equal to or larger than a certain value, the stroke is regarded as a graphic, and the recognition unit is instructed to perform graphic recognition,
If it is less than a certain value, the stroke is regarded as a character,
The handwriting character and graphic input device is provided with a recognition switching unit for instructing the recognition unit to perform character recognition.

According to the invention of claim 4, the instruction content of the recognition switching unit is based on the judgment result of the stroke size judging unit with respect to the handwriting stroke size inputted from the input unit, and the display character font corresponding to this size. Inquires the display font storage unit whether or not there is, and if there is, instructs the recognition unit to perform character recognition, and if not, instructs the recognition unit to perform graphic recognition. The handwritten character / graphic input device according to claim 3 is characterized in that.

According to a fifth aspect of the present invention, there is provided a judgment reference value changing means for changing a stroke size value serving as a reference for character recognition and graphic recognition based on the stroke size by the recognition switching section. The handwritten character / graphic input device according to claim 3 is used.

[0013]

With the above structure, in the invention of claim 1,
When the recognition target data is determined to be a character by the recognition switching unit, the character determination unit determines the character size of the handwritten coordinate data obtained from the input unit. The display control unit selects a font to be displayed on the display means in a predetermined procedure from the displayable fonts stored in the display font storage unit in accordance with the character size determined by the character determination unit.

According to the second aspect of the invention, as the predetermined procedure for selecting the font to be displayed in the first aspect of the invention, the character size of the input handwritten character determined by the character size determination unit and the character to be displayed are displayed. Comparison and collation is performed using a correspondence table with fonts. In the invention of claim 3, the stroke size determination unit determines the stroke size of the handwritten coordinate data obtained from the input unit. The recognition switching unit, when recognizing the handwritten coordinate data input by the recognition unit, regards the stroke size judgment value as a figure or more and recognizes it as a figure, and if it is less than a certain value, recognizes it. Instruct to recognize characters as characters and perform character recognition.

According to a fourth aspect of the present invention, in the recognition operation in the recognition section according to the third aspect of the invention, the size is determined based on the stroke size determination result of the handwriting stroke input by the recognition switching section by the stroke size determination section. The display font storage unit is queried for the existence of the display character font corresponding to. Then, if it exists, the recognition unit is instructed to perform character recognition, and if it does not exist, the recognition unit is instructed to perform illustration recognition.

According to the invention of claim 5, the judgment reference value for character recognition and figure recognition based on the stroke size in the invention of claim 3 can be changed by the operation of the judgment reference value changing means by the operator. There is.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to each claim. (First Embodiment) The invention of claim 1 will be described based on an embodiment. FIG. 1 shows the configuration of an embodiment of a handwritten character / graphics input device according to the invention of claim 1. In the figure, 11 is an input means, 12 is a recognition means, and 1
Reference numeral 3 is a display means, 14 is a display font storage means, 15 is a character size determination means, 16 is a display control means, and 17 is a recognition switching means. Of these, the input means 11, the recognition means 12, the display means 13, the display font storage means 14, and the recognition switching means 17 are basically the same as those of the conventional technique, and therefore, are given the same reference numerals as those in FIG. A description of the structure and the like will be omitted. This also applies to other embodiments described later. The character size determination means 15 and the display control means 16 form the essential part of the invention of claim 1. this house,
The display control means 16 simply selects a display font from a character size in a predetermined procedure. Next, the character size determination means 15 will be described focusing on its principle. When the operator inputs a stroke on the tablet with a pen, the pens come into contact with the pen contact detection ends arranged in a grid pattern on the tablet surface one after another. Therefore, the position coordinates along the movement locus of the pen are sequentially input to the character size determination means 15. Based on the input position coordinates, the character size determination unit 15 can detect not only the locus of pen movement, and thus the start and end points of the stroke, but also the points in the middle as position coordinates. From this, the stroke length can be easily obtained. Note that the straight line distance between the starting point and the ending point of the stroke is not simply defined as the stroke length in consideration of the fact that there are many broken lines and curves as constituent elements such as characters.

Next, when the stroke of one character has been input, the character size input means 15 selects the longest one of the strokes input as one character, that is, the character of all strokes, that is, the character. Of the position coordinates, the difference between the uppermost value and the lowermost value, and similarly the difference between the leftmost value and the rightmost value are obtained. The input character size is obtained by comparing these with the separately set reference values.

Next, the operation of the handwritten character / graphics input device configured as described above will be described below.
The operator inputs characters for each stroke by handwriting with the pen from the input means 11. The input stroke is sent to the recognition means 12 and the character size determination means 15. The recognition unit 12 executes character recognition, specifically, specifying a character intended to be displayed by the operator from the input stroke. Then, the character code of the character specified as a result is sent to the display means 13. On the other hand, the character size determination unit 15 obtains the character size by the above procedure and sends the result to the display control unit 16. Next, the display control means 16 inquires the display font storage means 14 about the retained character font size. Of the font sizes returned from the display font storage means 14, the first
As the procedure, the one whose value is closest to the measured character size value is selected, and as the second procedure, the character size value selected in the first procedure is selected for the character entered immediately before the character. If the character size is less than or equal to the specified character size and is 2/3 or more, the selected value is changed to the character size input immediately before. Then, the display means 13 is informed of the selected value and the display position is also indicated. For example, if the display font storage means 14 stores a 24-dot font and a 48-dot font, it is displayed when the character size value measured in the first procedure is between 0 and 36 dots. 2 as the font size value of the character
4 dots were selected and the same measured font size value was 3
When the number of dots is 7 or more, 48 dots are selected. next,
It is the second procedure, but if the previously entered font size is 4
When the size of the characters is 8 dots and the size of the character input later is 36 dots, which is tentatively selected in the first procedure, the character input after that is finally changed to 48 dots. This is because in the case of handwritten character input, the input person usually intends to input characters of the same size in many cases. Also, the display position is designated as the next position if the font size is the same as that of the character displayed before the character, and the start position of the next line if the line to be displayed ends. And this is the same as a keyboard input word processor. The display unit 13 displays the character specified by the recognition unit 12 at a predetermined position with a dot value designated by the display control unit 16. (Second Embodiment) The invention of claim 2 will be described based on an embodiment.

FIG. 2 is a block diagram of an embodiment of the handwritten character / graphics input device according to the present invention. In the figure, 11 is an input means, 12 is a recognition means, 13 is a display means, 14 is a display font storage means, 15 is a character size determination means, and 16 is a display control means. , 17 are recognition control means. These are the same as those in the first embodiment. However, the difference is that the corresponding display font determining means 27 is additionally provided to the display control means 16.

The operation of the handwritten character / graphics input device configured as described above will be described below. The operator inputs characters by handwriting with the pen from the input means 11. The input stroke is sent to the recognition means 12 and the character size determination means 15. The recognition means 12 executes character recognition and sends the resulting character code to the display means 13. The character size determination means 15 measures the size of the input character and sends the result to the display control means 16. The processing up to this point is the same as in the first embodiment. Next, regarding the operation according to the present invention, the display control means 16 obtains from the corresponding display font determining means 27 the font size determined based on the display font correspondence table contained in the corresponding display font determining means 27. The above is notified to the display means 13. The display means 13 displays the characters of the obtained recognition result in the notified font size. Here, regarding the contents of the display font correspondence table, as shown in FIG. 8, characters up to 30 dots in character size are displayed in K24 font after recognition.
K48 font is displayed up to 0 dots, and K60 font is displayed up to 75 dots. When it exceeds 76 dots, the CRT warns the operator that the corresponding font is not stored. It should be noted that there are four types of display character fonts stored here, and it is intended that the characters of the headline are usually large and the footnotes and the like are small, which can be effectively dealt with. (Third Embodiment) This embodiment mainly relates to the invention of claim 3 and subordinately to the invention of claim 1. A description will be given below with reference to the drawings.

FIG. 3 is a block diagram of an embodiment of the handwritten character / graphics input device according to the present invention. In the figure, 11 is an input means, 12 is a recognition means, 13 is a display means, 14 is a display font storage means, 35 is a stroke size determination means, and 16 is a display control means. , 37 are recognition switching means. Among these, the recognition switching means 37 is different from the first embodiment shown in FIG. 1 in basic operation, and the stroke size determining means 35 is also slightly different. That is, in the present embodiment, the recognition switching means 37 recognizes whether the input data is a character or a graphic, not by a separate instruction from the input person, but by the input stroke length. Further, the stroke size determination means 35 determines the length of the stroke input for this recognition and notifies the recognition control means of this. The operation of the handwritten character / graphics input device configured as described above will be described below with reference to the flowchart shown in FIG.

The operator inputs characters by handwriting with the pen from the input means 11 (S1). The input stroke is sent to the recognition means 12 and the stroke size determination means 35 (S2). The stroke size determination means 35 measures the size of the input stroke and sends the result to the recognition switching means 37 (S3). The recognition switching means 37 determines the stroke size (S4), determines that the input stroke is a graphic if the value is equal to or larger than a certain boundary value, and instructs the recognition means 12 to execute graphic recognition (S5). Specifically, it corrects the blurring of lines caused by manual input for each font, and since there are many opportunities to display straight lines, circles, etc., it collates with previously stored lines, and after that If it is judged to be a straight line, a circle, etc., it will be displayed more accurately based on the stored line. Similarly, after a few fonts have been input, an accurate comparison will be made with the previously stored symbolic figure. Display etc. are made. If the stroke size determination value is less than the boundary value, the stroke is determined to be a part of the character, and the recognition means 12 is instructed to execute the character recognition (S6).

Furthermore, it is further determined whether or not the stroke input for one character is completed (S7). If not completed, the process returns to (S1) and the next stroke input is executed. Therefore, for each stroke input, it is determined whether the graphic input or the character input is based on the size. When the first stroke of the next character is input to the next section of the tablet, and it is determined that the stroke input for one character is completed by the stroke immediately before that, it is determined that the recognition switching unit 37 recognizes the character. Is confirmed (S8). Next, in the pen input device according to the present embodiment, the stroke size determination means 35 further measures the character size under the instruction of the recognition switching means 37 (S8).
Based on this measured character size, the display control means 16 selects a dot having the closest dot size to the measured character size from the character fonts stored in the display font storage means 14. S9), the character specified as a result of character recognition is displayed on the display means 13 by the selected dot.

In determining the character input and the graphic input, the fact that the stroke length is the boundary value or more is considered in consideration of the fact that the graphic is generally larger than the character. Further, in this case, a handwritten figure input whose input stroke is less than the boundary value is recognized as a symbol, that is, a kind of character even if the figure input is intended. For example, if the stroke of the bulged portion of the long arrow is less than the boundary value, it is recognized as the symbol ">" instead of as a figure. However, if a long line is input following this, it goes without saying that the process shifts to figure recognition.

In the above embodiment, it is assumed that the stroke for one character is determined by whether or not it is input in a predetermined section of the tablet. However, as described above, there are various methods for determining whether or not a stroke for one character is input, such as whether or not the next stroke is input within a fixed time from the input of the previous stroke. Therefore, these means may be adopted or used in combination. (Fourth Embodiment) The invention of claim 4 will be described based on an embodiment.

FIG. 4 is a block diagram of an embodiment of a handwritten character / graphics input device according to the present invention. In the figure, 11 is an input means, 12 is a recognition means, 13 is a display means, 14 is a display font storage means, 35 is a stroke size determination means, and 16 is a display control means. , 47 are recognition switching means. Of these, the input unit 11, the recognition unit 12, the display unit 13, the display font storage unit 14, and the display control unit 15 are the same as or substantially the same as those in the first embodiment shown in FIG. The stroke size determining means 35 is almost the same as that of the third embodiment shown in FIG. However, the difference is that confirmation of whether the input data of the recognition switching means 47 is a character or a graphic is made by a notification from the display control means 16. The operation of the handwritten character / graphics input device configured as described above will be described below, which is different from that of the third embodiment according to the present claim.

The operator inputs characters by handwriting with the pen from the input means 11. The input stroke is sent to the recognition means 12 and the stroke size determination means 35. The stroke size determination means 35 measures the size of the input stroke and sends the result to the display control means 16 and the recognition switching means 47. The recognition switching means 47 inquires via the display control means 16 whether or not the display character font corresponding to the notified stroke size is stored in the display character font storage means 14. If the stroke is not stored, it is determined that the stroke is a figure, and the recognition unit 12 is instructed to execute the figure recognition. If stored, the stroke is determined to be a character or a part of the character, and the recognition means 12 is instructed to execute character recognition. In addition,
The reason for this determination is the same as that described in the third embodiment. The recognition means 12 executes recognition and sends the resulting character code or graphic data to the display means 13. On the other hand, the display control means 16 makes an inquiry to the display font storage means 14 in response to the inquiry from the recognition switching means 47, and receives the notification of the font size returned as a result,
This is notified to the recognition switching means 37, and the contents of the stored character font are also known. Then, the character font having the dot number closest to the measured stroke size value is selected from the selected fonts, and the result is notified to the display means 13. The display unit 13 displays the character specified by the recognition unit with the notified number of dots.

Although only the operation peculiar to this embodiment has been described above, every time a stroke for one character is input, the determination as to whether it is a character input or a graphic input is repeated, and even one stroke is larger than the reference value. In this case, changing from character input to graphic input and recognition, and final judgment of character input and character size when all strokes for one character are input may be added. Of course. This is the same in the fifth embodiment described later. (Fifth Embodiment) The fifth embodiment of the invention will be described.

FIG. 5 is a block diagram of an embodiment of a handwritten character / graphics input device according to the invention of claim 5. In the figure, 11 is an input means, 12 is a recognition means, and 1
3 is a display unit, 14 is a display font storage unit, 35 is a stroke size determination unit, 16 is a display control unit, 37 is a recognition switching unit, and 58 is a determination reference value changing unit. . The basic configuration and operation of this embodiment are the same as those of the third embodiment shown in FIG. 3 except for the judgment reference value changing means 58. Therefore, as in the case of the fourth embodiment, the operation according to the present invention and different from the third embodiment will be mainly described.

The operator inputs a character by handwriting with the pen from the input means 11. The input stroke is sent to the recognition means 12 and the stroke size determination means 35. The stroke size determination means 35 measures the size of the input stroke and sends the result to the display control means 16 and the recognition switching means 37. The recognition switching means 37 instructs the recognition means 12 whether to perform graphic recognition or character recognition based on the judgment reference value held therein.

Regarding the judgment reference value at this time, two types of stroke sizes, which are judgment reference values, are displayed according to a predetermined program on the CRT which also serves as the display means 13 prior to the character input by the operator. Then, the input person gives an instruction as to which stroke size to adopt by operating the cursor with the keyboard. It should be noted that the stroke size serving as the judgment reference value at this time is the display font storage means 1.
Considering that the font size values of the characters to be displayed stored in 4 are 24 dots and 48 dots, and that there are broken lines and curved lines as kana and kanji constituent strokes, strokes corresponding to 30 dots and 60 dots The length. If the stroke length corresponding to 30 dots is designated, the recognition switching means 37 determines whether the input data is a character or a graphic, and if the input stroke length is 30 dots or less, it is a character. If it exceeds, it will be called a figure.

Although the present invention has been described above based on the embodiments, it goes without saying that the present invention is not limited to the above embodiments. That is, for example, (1) In each industry, a specific graphic is used as characters or symbols. Therefore, "figure recognition" is to combine a plurality of input fonts and judge that the input result is these character or symbolic figures, and as a result of the judgment, an appropriate shape, size, line This is a concept including displaying these figures that have been input in advance such as the thickness.

(2) A character does not consist of only a single stroke such as "shi", but consists of a plurality of strokes without common parts (dots) such as "i".
There are various strokes that have a common portion such as, and moreover, there are many strokes such as "facility" and "profit", which are often used in kanji, and have a complicated structure. Also, in numbers and alphabets, the same character may differ in full-width, half-width, etc. Therefore, "character recognition" means not only "recognizing the input stroke as a part of the character", "recognizing the character size", and "deciding the number of dots of the font to be displayed", but also "character recognition". It is a concept of "various properties regarding display of characters and some kind of determination regarding attributes".

(3) Arabic characters, Chinese characters that are not stored in the display font storage unit because they are rarely used, may be added with a graphic processing function. vice versa,
A function of processing symbols such as "?" And ">" and small complicatedly used figures (often in electric circuit diagrams etc.) as characters may be added. (4) Although common to all the embodiments, the display position of the input character is almost fixed even in the handwriting word processor. Therefore, the same character entry position determination method as that of a word processor for keyboard input may be adopted. In addition, in the flowchart, the position of the square or rhombus in which the procedure or judgment is written inside is often the lower part of the square or rhombus entered before that, and the letters inside it are arranged in a well-balanced manner. To be done. For this reason, a function of automatically determining the positions and arrangements of these figures and the characters inside thereof may be added.

(5) The inventions of the above claims may be appropriately combined and employed. (6) In the first embodiment, as the predetermined procedure, another method such as selecting a character size smaller than the input character size may be adopted. (7) In the second embodiment, the contents of the display font correspondence table may be changeable.

(8) In the third embodiment, if a continuous stroke is input over a plurality of character writing sections in the tablet, a function of performing graphic recognition may be added regardless of the length of the stroke. . (9) For convenience of manufacturing, one constituent element (requirement) of the claimed invention may be divided into a plurality of parts, or conversely, a plurality of constituent elements may be one part. Also, the components are hard,
It does not matter whether it is software or not.

[0038]

As described above, according to the apparatus of the invention of claim 1, the character size of the recognition result can be automatically changed and displayed according to the size of the character input by handwriting. , It is possible to save the trouble of specifying the size of the character font to be displayed. According to the invention of claim 2,
In addition to the effect of the invention of claim 1, by adding the display font correspondence table holding means for holding the correspondence table between the size of the input handwritten character and the display character font of the recognition result, the size of the input handwritten character and the display character The size of can be changed freely. For this reason, it is possible to flexibly use it according to the input person's habit or the document to be created.

According to the third aspect of the invention, it is possible to automatically control the execution of character recognition and figure recognition by using the size of the input stroke. Therefore, the convenience is improved especially in CAD and graphic writing. According to the invention of claim 4, it is possible to automatically control the execution of the character recognition and the graphic recognition and specify the display character font of the recognition result by using the size of the input stroke. Therefore, it becomes more convenient to create various documents.

According to the invention of claim 5, in addition to the effect of the invention of claim 3, the correspondence between the size of the input handwritten character and the size of the display character font, and switching between character recognition and graphic recognition depending on the size of the input stroke. The setting of can be freely changed. As a result, it is possible to flexibly use according to the type of the input person's habit or the document to be created.

Further, as described in [Problems to be solved by the invention] by these functions, there is little hardware,
In addition, the cost is low and the operation panel can be downsized, so that the installation is relatively easy and the proficiency is improved.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of a handwritten character / graphic input device according to the invention of claim 1.

FIG. 2 is a configuration diagram of an embodiment of a handwritten character / graphics input device according to the invention of claim 2;

FIG. 3 is a configuration diagram of an embodiment of a handwritten character / graphics input device according to the invention of claim 3;

FIG. 4 is a configuration diagram of an embodiment of a handwritten character / graphics input device according to the invention of claim 4;

FIG. 5 is a configuration diagram of an embodiment of a handwritten character / graphic input device according to the invention of claim 5;

FIG. 6 is a configuration diagram of a handwritten character / graphic input device according to a conventional technique.

FIG. 7 is an operation flow chart of the embodiment of the invention of claim 3;

FIG. 8 is a display font correspondence table in the invention of claim 2;

[Explanation of symbols]

 11 input means 12 recognition means 13 display means 14 display font storage means 15 character size determination means 16 display control means 17 recognition switching means (first embodiment) 27 corresponding display font determination means 35 stroke size determination means 37 recognition switching means (first) 3) 47 recognition switching means (4th embodiment) 58 judgment reference value changing means 65 instructing means

Claims (5)

[Claims] 1. An input unit for inputting handwritten coordinate data with a pen, a recognition unit for performing character recognition or graphic recognition on the input data input by the input unit, and input data input by the input unit. A character or a figure in a predetermined procedure, and based on the result, a recognition switching section for instructing the recognition section to perform character recognition or figure recognition, and a display section for displaying the recognized result. In a handwritten character / graphic input device having a display font storage unit that stores a font for displaying characters of a recognition result, when the recognition target data of the recognition of the recognition control unit is a character, input A character size determination unit that determines the character size of the handwritten coordinate data obtained from the display unit, and the display font storage unit that corresponds to the input character size obtained by the character size determination unit. It determines the display font from displayable fonts that are stored by a predetermined procedure, handwriting graphical input device and having a display control unit for instructing the display to the display unit. 2. As a predetermined procedure when the display control unit determines the character size of the input handwritten character and the character font to be displayed as a recognition result, a display font correspondence table including a correspondence table between the two is held, The handwritten character / graphic input device according to claim 1, further comprising a corresponding display font determining unit that determines the correspondence display font based on the correspondence table. 3. An input unit for inputting handwritten coordinate data with a pen, a recognition unit for performing character recognition or graphic recognition on the input data input by the input unit, and a font for displaying characters of the recognition result. In a handwritten character / graphics input device having a display font storage unit for storing the, and a display unit for displaying the recognized result, a stroke size determination unit for determining the stroke size of the handwritten coordinate data obtained from the input unit, When the size of the input handwritten stroke obtained by the stroke size determination unit is equal to or larger than a certain value, the stroke is regarded as a graphic and the recognition unit is instructed to perform graphic recognition. And a recognition switching unit for instructing the recognition unit to perform character recognition. Apparatus. 4. The instruction content of the recognition switching unit is based on the judgment result of the stroke size judging unit for the handwriting stroke size input from the input unit, and whether or not there is a display character font corresponding to this size. Is inquired to the display font storage unit, and if present, the recognition unit is instructed to perform character recognition, and if not present, the recognition unit is instructed to perform graphic recognition. Item 3. The handwritten character / graphic input device according to Item 3. 5. A judgment reference value changing means for changing a stroke size value which is a reference for judgment of character recognition and graphic recognition based on a stroke size by the recognition switching unit. Handwritten character figure input device described.