JPH09114824A - Document processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To switch the input mode state of a pen keyboard and to perform a display only if the moving to a character with a cursor is performed, and to unnecessitate the switching of the input mode of the pen keyboard by an operator. SOLUTION: This processor possesses a pen keyboard 3, a handwritten input 4, an OCR recognizing device 7, a text memory 2 holding a text and a cursor pointer for holding the location (address) in the text of a character with a cursor. The processor is provided with a CPU 6 receiving an input character 1 and the moving of a cursor and controlling the edition 2 of the text and a display screen 3. When one character is made to be recognized for the data obtained from a handwritten character recognition 4 and the OCR recognizing device 7, in particular, there are many cases where two or more candidates exist in the obtained result. Therefore, the text memory 2 can be made to hold the number of candidates, the characters of the candidates and also priority for each character in the text.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a document processing device, and more particularly to a device capable of correcting a created document and a document processing device capable of extracting text information from a printed matter.

[0002]

2. Description of the Related Art In a conventional Japanese word processor,
Even if the pen keyboard or handwriting input is enabled in addition to the key input / correction, the processing performed by the keyboard is simply replaced with the pen keyboard or handwriting input. For this reason, when correcting a document that has already been created, a correction method that fully utilizes the characteristics of the pen keyboard and handwriting input is not used. Specifically, if you want to quickly change the numerical value part of a sentence you have already created, move the cursor to the numerical position and then change the pen keyboard type (character input mode) to "alphanumeric characters". It has to be set to “”, and the burden on the operator cannot be reduced. An example of this case is shown in FIG.

A pen keyboard displays an image of the keyboard on the screen of the display device, and this screen itself is integrated with the coordinate input device. By touching the image on the keyboard with a pen, coordinate data is generated. And the key corresponding to this coordinate is input.

In addition, OCR (optical character reader)
When a character is incorporated into a sentence such as a Japanese word processor by the character recognition by the operator, the operator usually visually confirms the captured sentence. When it is necessary to select or correct another candidate for a character, the operator moves the cursor to the character and then performs the operation.
Even if you want to quickly correct only the letters with three or more,
It was necessary to move the cursor to all the characters and perform the process of confirming the candidate characters, and the operation was complicated.

The following patents have been proposed as a method for improving the operation of switching the character input mode. In Japanese Patent Laid-Open No. 2-135568 (published on May 24, 1990), character data at the cursor position or in a predetermined range is read, and a character mode is set according to the character type.

JP-A-6-83514 (March 25, 1994)
In Japanese), the character mode is automatically switched at the position where the preset character mode is switched.

However, these proposals also have the following problems. Japanese Patent Laid-Open No. 2-135568 sets the character mode automatically, but does not assume the screen display of a pen keyboard or the like, and does not automatically perform the switching processing of these boards. In Japanese Patent Laid-Open No. 6-83514,
Since it is necessary to set the position to switch the character mode in advance, the operation is complicated.

[0008]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide means for automatically switching the state of the pen keyboard in association with the character with the cursor, so that the operator can select the type of pen keyboard. The purpose is to reduce the burden of operation by not having to set it.

Another object of the present invention is that in handwriting input, the number of recognition result candidates is often two or more, and it is necessary for the operator to select an optimum character from the candidates. An object of the present invention is to provide means for changing the priority order of handwriting input candidates in synchronization with the character on which the cursor is placed in order to reduce the burden of the operation at this time. As a result, in the case of correction of numbers, the number candidates can be preferentially displayed, and the operator can perform work with less operation.

Further, conventionally, when a character is captured in a document such as a Japanese word processor by OCR character recognition or the like, the operator usually visually confirms the captured sentence. When it is necessary to select or correct another candidate for a character, the operator moves the cursor to that character before performing the operation.In this case, the cursor is moved to all characters. You have to perform the process of checking the candidate characters,
The operation was complicated.

Therefore, it is an object of the present invention that, in a document having two or more types of candidates obtained from OCR character recognition, the cursor does not move to a character having only one candidate result, and there are two or more candidates. The purpose is to provide a means for moving the cursor only to a certain character. This makes it possible to quickly correct only characters having two or more candidates without moving the cursor to all the characters.

[0012]

The present invention has been made for the purpose of solving the above-mentioned problems, and as means of the present invention,
It has a pen keyboard, handwriting input, OCR recognition device, and a text memory that holds the text, and a cursor pointer that holds the position (address) in the text of the character with the cursor. It also accepts input characters and cursor movement. , CPU for controlling text editing and display screen. In particular, the data obtained from the handwritten character recognition or OCR recognition device often has two or more candidates for the result obtained by recognizing one character. Therefore, the text memory uses the number of candidates for each character in the text,
Candidate characters and priority levels can also be retained.

More specifically, in the invention according to claim 1, a handwriting input board for inputting a character and a symbol and a corresponding key can be displayed by pen-touching the image of the keyboard displayed on the screen of the display device. In a document processing apparatus including a pen keyboard for input and a display unit for displaying read document data, when performing character correction by handwriting input with the pen keyboard or the pen,
The data type of the character at the cursor position is recognized in conjunction with the character with the cursor, and the pen keyboard corresponding to the recognition result is automatically displayed on the display unit on the pen keyboard, and the operator is displayed. The document processing apparatus is characterized in that correction input is possible by touching the pen keyboard with a pen.

According to the second aspect of the present invention, means for recognizing the data type of the character in association with the character on which the cursor is located, and the data type of the result candidate of the handwritten character recognition corresponding to the recognition result. The document processing apparatus includes means for changing the priority order.

Further, according to the third aspect of the invention, in a document having two or more types of candidates obtained by OCR character recognition or the like, the cursor does not move to a character having only one candidate result, and there are two candidates. The document processing apparatus includes means for moving the cursor only to one or more characters.

According to the first aspect of the invention, the character with the cursor can be read from the text memory, the state of the pen keyboard can be automatically switched according to the character type, and the pen keyboard can be displayed on the screen.

According to the second aspect of the present invention, the character with the cursor is read from the text memory, and the priority order of the recognition result candidates of the handwriting input is automatically switched according to the character type and displayed on the screen. it can.

According to the third aspect of the invention, the number of candidates for the character in the text is read from the text memory, the cursor is prevented from moving to the character having the number of candidates of 1, and the number of next candidates is 2 or more. You can move the cursor to a character.

[0019]

1 is a system configuration diagram of a document processing apparatus according to an embodiment of the present invention.

As shown in the system configuration diagram of FIG. 1, the keyboard 1 is a key input device, and when a key is pressed, a key code is generated. The keyboard 1 is provided with a character key 1-1 stored in a document as a character and a cursor key 1-2 for instructing cursor movement. The editing device 2 stores the character corresponding to the received key. It includes an edit buffer 2-1 for storing characters input by keys and recognition result character strings from the OCR recognition device.

Display / pen keyboard coordinate input device 3
Displays the contents of the edit buffer 2-1 and the characters of the message by displaying according to the bitmap data from the display controller 5. The display device 3 also serves as a pen keyboard coordinate input device. A pen keyboard can be displayed on the display device 3, and when the displayed pen keyboard is touched with the pen, the coordinates of the pen are input.

The handwriting input character recognition device 4 recognizes a character input by handwriting and outputs a character code of a result candidate.

The display control unit 5 has a correspondence table between character codes called character generator (CG) data and bitmap data for display, receives the character code from the CPU 6, and causes the display device 3 to correspond to the character. Output bitmap data. Further, it also has pen keyboard display data 5-1 which is bitmap data for displaying the pen keyboard.

The CPU 6 is a central processing unit that controls the operation of the entire system.

The OCR recognition device 7 reads a printed matter,
It recognizes characters and generates a candidate character code as a result.

FIG. 2 is a flow chart showing the operation of the first embodiment of the present invention according to claim 1. According to the flowchart of FIG. 2, when the cursor movement key of the keyboard is pressed (STEP 1), the cursor position moves. For example, in the case of the cursor [→] key, the cursor pointer advances so as to point to the next character (usually the character whose edit buffer address is one character higher). At this time, the character code with the cursor is read from the editing device (STE
P2). The JIS Kanji code is used as the character code.

Check the range of character codes (STE
By P3), it is possible to determine whether the character is "Hiragana", "Katakana", "alphanumeric characters", "Kanji" or other characters. Specifically, if the JIS Kanji code is used, the code range is Hiragana if the code range is 2421H to 247EH. 2521H ~ 257EH is Katakana, 3021H ~
4F5EH can be identified as Chinese characters, and the other characters can be identified as alphanumeric (symbols are also considered as alphanumeric).

The relationship between the JIS Kanji code and the classification is shown in the JIS Kanji code and character type tables of FIGS.

In the display control unit, according to this result,
Any one of "Hiragana board", "Katakana board", and "Alphanumeric board" is displayed on the display device (STEP 4).
As a result, the input mode state of the pen keyboard can be automatically switched in synchronization with the character at the cursor.

FIG. 10 shows a display example of the pen keyboard, and FIG. 11 shows an example of changing the display type of the pen keyboard depending on the cursor display position of the text.

Next, taking FIG. 11 as an example, a description will be given according to the flow chart of FIG.

First, it is assumed that the cursor is at the position of the kanji "value" and that the cursor movement key is kept waiting while the "Hiragana pen keyboard" is displayed (STEP).
1).

When the cursor [→] key is pressed, the cursor is moved to the next character and the character code at the new cursor position is read from the edit buffer (STEP 2).

The read character code is checked. In the case of the example, the character is "1" and the JIS Kanji code is 233.
It is 1H. (STEP 3).

Since the check result is alphanumeric, the mode is switched to the alphanumeric input mode and the "alphanumeric pen keyboard" is displayed (STEP 4).

The operation of the second embodiment is shown in the flowchart of FIG. According to the flowchart of FIG. 12, when handwritten input data is given to the handwriting recognition device, the resulting character code is obtained after performing the recognition process. Normally, one or more candidates are obtained for one character input. At this time, the character code with the cursor is read from the editing device. The JIS Kanji code is used as the character code.

By checking the range of the read character code, the characters are "Hiragana", "Katakana", "alphanumeric characters".
It is possible to determine whether it is "Kanji" or other characters.

Taking the case of Hiragana as an example,
The edit buffer has a structure as shown in FIG.
The candidates for one character are arranged so that the one at the lower address has higher priority. Therefore, the codes of the candidate characters are checked and rearranged so that the hiragana characters are at lower addresses than the other characters. By this operation, when hiragana is used, the order of candidates can be rearranged so that hiragana has priority.

Similarly, in the case of Katakana, Katakana candidates are
If it is alphanumeric, rearrange it so that the alphanumeric candidates have priority. The display control unit 5 displays the recognition result candidates according to this result. As a result, the priority order of the recognition result candidates of handwriting input can be automatically changed in association with the character with the cursor.

FIG. 14 shows an example in which the order of handwriting recognition candidates changes depending on the cursor display position of the text.

Next, taking FIG. 15 and FIG. 16 as an example, FIG.
A description will be given according to the flowchart of 2. Initially, it is assumed that the cursor is located at the kanji "value".

By moving the cursor by one character with the cursor [→] key and inputting one character handwritten character in the handwriting recognition device in this state, a result candidate is obtained. It is assumed that there are three result candidates “I”, “I”, and “1” (STE
P1).

This candidate is stored in the edit buffer, and the state of the edit buffer at this time is shown in FIG.

The character code with the cursor is read from the edit buffer. In this case, the character is "1" and the code is 233.
It is 1H (STEP 2).

Check the character code. In this case, it corresponds to an alphanumeric character (STEP 3).

The candidates are rearranged so that the alphanumeric candidates are prioritized (STEP 4). The state of the edit buffer at this time is shown in FIG.

The result candidates are displayed according to the priority of the edit buffer (STEP 5).

FIG. 17 shows the operation of the third embodiment of the present invention.
Is shown in the flowchart of FIG. According to the flowchart of FIG. 17, when editing the result of OCR character recognition, the editing device holds the number of candidates, the first candidate character, and the second and subsequent candidate characters for each character, and displays or selects the candidate character. It is usually possible to do.

Under this premise, when the cursor movement key is pressed, the cursor position moves. At this time, the number of candidates for the character at the cursor is read from the editing device. If the number of candidates is 1, the process is finished. If the number of candidates is 2 or more, the cursor moves to the next character and the number of candidates for the character with the cursor is read. This process is repeated until the number of candidates reaches 1. As a result, the cursor does not move to the character having only one candidate result, but only to the character having two or more candidates.

FIG. 18 shows the number of candidates for OCR recognition.
An example of moving the cursor is shown.

Next, taking FIG. 18 as an example, description will be given according to the flowchart of FIG.

First, it is assumed that the edit buffer is in the state shown in FIG. 13, the cursor is at the position of the numeral "0", and is waiting for the cursor movement key (STEP).
1).

Press the cursor [→] key to move the cursor to 1
Move characters. In the example, move to the character "10,000" (STE
P2).

The number of candidates for the character at the cursor is read from the edit buffer (STEP 3).

The number of candidates for the character "ten thousand" in the example is one. Therefore, returning to STEP 2, the cursor moves in the same manner as when the [→] key is input again. In this example, the cursor moves to the character "circle". Then, the number of character candidates at the cursor position is read again. Since the number of candidates is 2 this time, the cursor movement is ended (STEP 4).

[0056]

According to the first aspect of the invention, the input mode state of the pen keyboard is switched and the display is performed only by moving to the character with the cursor. This eliminates the need for the operator to switch the input mode of the pen keyboard, and has the effect of improving work efficiency in the case of correcting the numerical values of the created document.

According to the second aspect, the priority order of the result candidates of the handwritten input character recognition changes in association with the character with the cursor. As a result, when correcting numerical values, the numerical candidates are preferentially displayed, which has the effect of increasing the work efficiency of the operator.

Further, according to the third aspect, since the cursor does not move to the character having only one candidate, the working efficiency is improved when the operator confirms the candidate and finds the character that needs to be selected. There is.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram according to an embodiment of the present invention.

FIG. 2 is a flowchart of the first embodiment of the present invention.

FIG. 3 is a table of JIS Kanji codes and character types used in the embodiment of the present invention.

FIG. 4 is a table of JIS Kanji codes and character types used in the embodiment of the present invention.

FIG. 5 is a table of JIS kanji codes and character types used in the embodiment of the present invention.

FIG. 6 is a table of JIS Kanji codes and character types used in the embodiment of the present invention.

FIG. 7 is a table of JIS Kanji codes and character types used in the embodiment of the present invention.

FIG. 8 is a table of JIS Kanji codes and character types used in the embodiment of the present invention.

FIG. 9 is a table of JIS Kanji codes and character types used in the embodiment of the present invention.

FIG. 10 is a diagram showing a display example of the pen keyboard according to the embodiment of the present invention.

FIG. 11 is a diagram showing an example of displaying a cursor position on a pen keyboard according to an embodiment of the present invention.

FIG. 12 is a flowchart of the second embodiment of the present invention.

FIG. 13 is a diagram showing a structure of an edit buffer used in the embodiment of the present invention.

FIG. 14 is a diagram showing a display example of cursor positions and handwriting candidates used in the embodiment of the present invention.

FIG. 15 is a diagram showing a state of the edit buffer immediately after obtaining a recognition result candidate from the handwriting recognition device used in the embodiment of the present invention.

FIG. 16 is a diagram showing a state of an edit buffer when the candidates obtained from the handwriting recognition device used in the embodiment of the present invention are rearranged according to the character type of the cursor.

FIG. 17 is a flowchart of the third embodiment of the present invention.

FIG. 18 is a diagram showing an example of the number of candidates for an OCR recognition result and cursor movement used in the embodiment of the present invention.

FIG. 19 is a flowchart showing an operation when a pen keyboard is used in the conventional technique.

[Explanation of symbols]

 1 Keyboard 1-1 Character Key 1-2 Cursor Key 2 Editing Device 2-1 Editing Buffer 3 Display Device / Pen Keyboard Coordinate Input Device 4 Handwriting Input Character Recognition Device 5 Display Control Unit 5-1 Pen Keyboard Display Data 6 CPU 7 OCR Recognition device

Claims (3)

[Claims] 1. A handwriting input board for inputting character symbols, and a pen keyboard for inputting corresponding keys by pen-touching an image of a keyboard displayed on a screen of a display device, and read document data. In a document processing device having a display means for displaying, when performing character correction by handwriting input with the pen keyboard or a pen, in conjunction with a character with a cursor,
By recognizing the data type of the character at the cursor position, automatically displaying the pen keyboard corresponding to the recognition result on the display unit on the pen keyboard, and touching the displayed pen keyboard by the operator, the correction is performed. A document processing device, which is capable of inputting. 2. A means for recognizing a data type of a character in association with a character having a cursor, and a means for changing the priority of the data type of a result candidate of handwritten character recognition corresponding to the recognition result. The document processing apparatus according to claim 1. 3. In a document having two or more types of candidates obtained by OCR character recognition or the like, the cursor does not move to a character having only one candidate result, and the cursor is moved only to a character having two or more candidates. Claim 1 provided with the means to move.
Document processing device as described.