JP2568168B2 - Information processing method - Google Patents

Description

The present invention relates to an information processing method for recognizing input character information.

[Prior Art] Conventionally, when inputting handwritten characters, for example, an input device composed of a graphic tablet and a stylus pen is used, and a keyboard for item selection is used for inputting characters such as alphabet, numbers, and kanji. Or, a dedicated multi-item input tablet was used. For this reason, two types of input devices have to be prepared for the purpose of performing both graphic input such as handwritten characters and item selection input such as alphabets, which is not economical. Therefore, a tablet having both functions by adding an item selection function to the graphic tablet is used.

This is to place an item sheet on which specific items are printed in advance on the input surface of the graphic tablet, detect the coordinates of the point entered according to the item of the sheet with the graphic tablet, and the area to which the input point belongs and the item sheet. The input item areas are detected by associating the item positions of.

On the other hand, to detect the type of item sheet, a hole or the like is made around the item sheet, and the presence or absence of this hole is detected to distinguish the item sheet types and detect the item corresponding to the item area from the input coordinates. Was going on.

However, when changing the input mode from graphic input to input handwritten characters to item selection input or from item selection input to graphic input, or when there are multiple item sheets even for item selection input, the input mode The operability is not always sufficient because it requires a manual operation for designating and instructing the type of item sheet, and requires a plurality of manual operations different from the case of inputting handwritten characters.

Also, because the selected item and the selection operation and the item detection method correspond one-to-one, if the printed content is obviously different on the sheet that is determined to be a sheet, the item that is different from the item sheet is displayed. It was input, and it was not possible to classify these contents by the item selection operation.

Further, according to the conventional item detection method, the number of selectable items is determined by hardware.

[Problems to be Solved by the Invention] The present invention has been made in view of such problems, and by inputting and recognizing a character in a specific area, the character type of a character outside the specific area can be specified. Not only can the character recognition process be flexible and reliable,
An object of the present invention is to provide an information processing method that enables efficient character type identification processing.

[Means for Solving the Problem] In order to solve this problem, the information processing method of the present invention includes the following steps. That is, the input position of the input character information is determined, the input character information is recognized, and when the input position of the character information is determined to be a specific area, the input character information is recognized. Information processing characterized by determining character type identification information from a result, and recognizing character information input outside the specific area as a character type identified by the character type identification information according to the determined character type identification information Method.

[Embodiment] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the drawings.

 FIG. 1 is a block diagram showing one embodiment of the present invention.

In FIG. 1, 1 is an information input device such as a tablet,
Reference numeral 2 is an item sheet with input information attached in a specific format, and 3 is an item sheet selection area for handwriting input of a character string designating a pre-registered item sheet selection mode and a type of the item sheet to be selected. . 4 is a character writing area for inputting handwritten characters in the format specified in the item sheet selection area 3, 5 is a stylus pen, 6 is handwriting input in the item sheet selection area 3 and the character writing area 4 using the stylus pen 5. It is the character input information consisting of the input point position signal of the generated character.

Reference numeral 7 denotes an input control circuit, and the input control circuit 7 is composed of each block described below. ROM
Is a memory in which the program shown in FIG. 2 is stored. Reference numeral 8 denotes a character position detection circuit for recognizing an input position which is a recognition target for converting input character information and the like into position information of a point sequence into an X coordinate signal, a Y coordinate signal, and a pen down signal. Outputs an X coordinate signal, a Y coordinate signal, and a pen down signal to the item selection control circuit 10 and the recognition processing unit 11 via the bus 9. Item selection control circuit
Both 10 and the recognition processing unit 11 recognize the input character from the input signal, and output the recognition result to the item sheet identification circuit 13 from the bus 12.

The item sheet identification circuit 13 stores the recognition result in the storage unit 1
4, a word creation unit 15 that assembles words using the recognition result stored in the storage unit 14, a word that specifies the item sheet selection mode and the type of item sheet to be selected, and the type of the corresponding item sheet It has a dictionary unit 16 in which the information necessary for doing so is registered, the item sheet determination unit 17 compares the word created by the word creating unit 15 with the sheet information of the dictionary unit 16, and the item sheet identification signal 18 is obtained. Form.

Reference numeral 30 is a dictionary in which information corresponding to the types of item sheets is registered, and 31 is a matching circuit for comparing the characteristics of input characters. This is a character recognition signal output from 32 input control circuits 7. 33 is an item sheet selection signal for pulling out the dictionary corresponding to the item sheet, and 34 is character information output from the dictionary 30.

FIG. 2 shows an embodiment of the item sheet 1 of this embodiment shown in FIG.

In the figure, 19 is an item sheet, and when an item sheet selection word indicating that it is a format consisting of only Japanese characters, for example, “phone book” is input as input information to the character writing area 4, the item sheet is input. Input to is determined to be in the phonebook mode. As a result, the area 20 of the item sheet 1 is a manuscript paper sheet having a plurality of squares for handwriting input of Japanese characters, and 21 is a numeral book having ruled lines for handwriting input of only numbers. Used as a built-in area.

3 and 4 show another embodiment of the item sheet 1, which is the third embodiment.
When the item sheet selection word "Grade table" is entered in the area 22 in the figure, the item sheet is judged as a grade table. Then, for example, when "A4" is input in the area for inputting the item selection word designating the input range of the area 25 shown in FIG.
The input range is the 26 ranges shown in the figure. Area 26 shows the input range of handwritten characters.

The operation of the handwritten character input device according to the embodiment of the present invention will be described below with reference to the flow chart of FIG.

When there is an input from the information input device 1, first, the process of S1 is executed to detect the position of the recognized character. In S1, the item sheet 2 is placed on the tablet input surface 1 and the item sheet selection word 19 is handwritten in the item sheet selection area 3 with the stylus pen 5. The input character information 6 is passed to the input control circuit 7 and the character to be recognized is recognized. The position detection circuit 8 converts the signals into three kinds of signals, that is, the X coordinate, the Y coordinate, and the pen down signal 9, and S2
Move on to. In S2, the item selection control circuit 10 determines based on each signal 9 whether the input character is for selecting an item and moves to S3 or S5. When it is determined in S2 that the input character has been input in the item selection area, the process proceeds to S3, the recognition processing unit 11 recognizes the character, and then continues.
The recognition result 12 is stored in the storage unit 14 in S4. This S1-S4 is S2
It is continued while the result of the judgment in is for item selection. If the input character is not entered in the item selection area
If the determination is made in S2, the process proceeds to S5. That is, when handwritten characters are input in a region other than the item area, it is determined that the input of the item sheet selection word is completed.

If it is not input to the item selection area in S2, proceed to S5,
In S5, the word creation unit 15 assembles words based on the recognition result stored in the storage unit 14. Then, in S6, the item sheet determination unit
17 determines an item sheet based on the recognition result recognized in S4, outputs an item sheet selection signal 33 to the dictionary 30, and selects the corresponding dictionary. In subsequent S7, the item sheet determination unit 17 outputs the determined item sheet as an item sheet identification signal 18, which is output from the input control circuit 7. In this way, the item sheet is determined, and in the subsequent processing, the input character is recognized according to the item sheet determined in S6 and S7.

When the item sheet is determined, the process of S8 is performed,
The input character input information 6 is input to the character position detection circuit 8 and the position where the character is input is detected. And
It is determined whether the position input in S9 is within the character writing area 4 or the area specified in the item selection area. If it is a character input in the corresponding area, proceed to S10. Invalidates the input and prepares for the next input.

In S10, the item sheet selection signal 33 corresponding to the item sheet determined by the item sheet determination unit 17 is given to the dictionary 30, and the character information 34 corresponding to the item sheet is read from the dictionary 30 and input to the matching circuit 31. To be done. In the matching circuit 31, the word created by the word creating unit 15 and the dictionary 30
Matching is performed by comparing with the character information 34 that indicates the characteristics of the input character that is output, the character type is determined, and the recognized character is determined according to this character type. Therefore, the recognition result is determined within the range of the character type used in the determined item sheet, so that the recognition rate can be improved. And S11
The character recognition signal 32 is output based on the recognition result. This S8
The processing from S11 to S11 is continued while the character input information is input from the character writing area 4.

In the above description, the characters for selecting the item sheets have been registered in advance, but the operator may be able to register the item selection words and the type of the item sheet to be used.

As described above, according to the present embodiment, by providing the handwriting input area of the character for specifying the item sheet in the specific area of the item sheet and inputting the specific information in the area,
You can select item sheets and information required for the above items, eliminating the need for multiple manual operations when selecting item sheets and different manual operations, and inputting handwritten characters with improved operability when selecting item sheets. The device is realized.

In addition, by making one item sheet selection correspond to many kinds of character for item sheet selection, the handwritten input character for item sheet selection has a role of item sheet selection, and at the same time, the input information It can also have headline meanings that help classify content.

EFFECTS OF THE INVENTION As described above, according to the present invention, the character type of a character outside the specific area can be specified by inputting and recognizing the character in the specific area. Therefore, the character recognition process by specifying the character type is flexible. In addition to being reliable and reliable, the character type specifying process can be efficiently performed.

[Brief description of drawings]

FIG. 1 is a block diagram of a handwritten character input device according to an embodiment of the present invention, FIGS. 2 to 4 are diagrams showing an example of an item sheet used in the present embodiment, and FIG. 5 is a handwritten character according to the present embodiment. 4 is a flow chart showing the operation of the input device. Here, 1 ... Information input device, 2 ... Item sheet, 3 ...
… Item sheet selection area, 4 …… Character writing area, 5…
… Stylus pen, 7 …… Input control circuit, 8 …… Character position detection circuit, 11 …… Recognition processing unit, 14 …… Storage unit, 15 ……
Word creation section, 17 …… Item sheet determination section, 19,22,23 …… Item sheet selection word, 20 …… Manuscript paper, 21 …… Rules, 24 …… Specified area, 30 …… Dictionary, 31 The matching circuit.

Claims (1)

(57) [Claims] 1. An input position of character information to be input is determined, the input character information is recognized, and when it is determined that the input position of the character information is a specific area, the input character information is input. Characteristic information is determined from the recognition result, the character information input outside the specific area is recognized as the character type specified by the character type specifying information according to the determined character type specifying information. Information processing method.