JPS6228828A - Tablet input information processor - Google Patents

Abstract

PURPOSE:To process easily the input of characters and the edition of sentences by dividing a tablet display part consisting of a tablet and a display unit into a character input area and a sentence area. CONSTITUTION:The tablet display part is unitedly formed by the tablet 101 and the display unit 102. A recognizing circuit 105 for recognizing hand-written characters or codes written on the tablet display part is connected to the table display part. The tablet display part is divided into the 1st and 2nd areas 109, 100. The 1st area 109 is used as the input area for hand-written characters or codes and the 2nd area is used as the sentence area for sentence display and edition. Since the tablet display part is divided into two areas, the input of characters and the edition of sentences can be easily processed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a tablet input information processing device that recognizes and edits, for example, characters and symbols input by hand through a tablet.

[Prior Art] As a simple means for inputting handwritten characters and the like, there is a device that integrates an input tablet, which is one type of coordinate input device, and a display device. It performs character recognition from handwritten input using a tablet, and displays the recognized characters on a display or the like. Examples of this include writing with a transparent tablet integrated on a liquid crystal display, a liquid crystal display integrated on an electromagnetic induction tablet, or a light pen with a semiconductor laser on the liquid crystal display panel. There are various types of devices, such as those in which the liquid crystal display panel itself detects the position of Ben.

Let us specifically explain a conventional example. Fig. 2 is a block diagram of an example of a conventional tablet input information processing device. , one character can be written on the tablet 1. 3 is an input bench, 4 is an input section, and tablet 1 of the input bench 3
Detects and inputs the coordinates and the on/off of the Ben touch of the input Ben 3, and stores input data for 61 characters.

Reference numeral 5 denotes a recognition circuit that recognizes an input character from one character's worth of input data stored in the input unit 4. Reference numeral 6 denotes a display circuit that outputs handwriting to the display 2 from the input data that is being obtained from the input unit 4, and also displays the recognition result obtained from the recognition circuit 5 on the display 2 when recognition of one character is completed. and
Reference numeral 7 denotes a display device for displaying text, and in this conventional example, it is not integrated with the tablet l.

In this way, an input area for one character is provided, and when a character is written, the handwriting is displayed on the display 2 and character recognition is performed. After recognition, the recognition result is displayed in the input area for one character (tablet 1). The text is displayed on another display device 7.

In this case, only one character is displayed on the display 2 integrated with the tablet 1, and when editing a text, it is necessary to use a method other than handwriting, which is inconvenient.

Next, FIG. 3 shows a conventional example in which character frames are displayed in the input area, and when one character is written in each character frame, the recognition result is displayed within the character frame. The display device 8 is integrated with the display device 8 mounted on top of the tablet 9 (the other components are the same as those in FIG. 2).

According to FIG. 3, a character frame is displayed on the display 8, and when you write one character at a time in the character frame, it will match the character input frame.
The recognition result is displayed in the display frame of the display 9 due to this relationship. Naturally, with this configuration, only the number of characters in the character frame can be displayed, and since the character input position and character display position are the same, the number of displayed characters is small due to the restriction of the input character size, and sufficient text cannot be displayed. It was not easy to edit text because it could not be displayed.

In the conventional example explained above, at least one
I was writing in a character frame of about 2mm x l 2mrn.

Therefore, in order to match the character input position and the character display position, a character input frame of at least 12 mm x 12 mm is required, and only one character can be displayed in such a frame, and as a result, the character display bag d Text editing is difficult because the number of characters that can be displayed is limited due to the overall size, and it is not possible to display enough text for text editing. Furthermore, it was difficult to create a table because there was a one-to-one correspondence between input character positions and display character positions.

[Problems to be Solved by the Invention] The present invention has been made in view of the problems of the prior art described above.
The purpose is to develop a tablet input information processing device that combines a tablet and a display unit, which can display a large number of characters even though it is small, and can facilitate character input and text editing. The task is to make a proposal.

[Means for Solving the Problems] As a means for achieving the above-mentioned problems, for example, the tablet input information processing device of the embodiment shown in FIG.
01 and a display unit 102, and a recognition unit 105 that recognizes handwritten characters or symbols written on the tablet display unit. The area is divided into areas i09.100.

[Operation] In the configuration shown in FIG. 1, the first area 109 is used as an input area for handwritten characters or symbols, and the second area 100 is used as a text area for displaying and editing texts. By dividing the tablet display section into two areas, the input area and the text area, input or editing operability and display capacity are improved.

[Examples] Examples of the present invention will be described in more detail below with reference to the accompanying drawings.

FIG. 1 is a block diagram of an embodiment of the present invention. In the embodiment shown in FIG. 1, a transparent tablet (101) is placed on top of the liquid crystal display 102.
are integrated. Display device (hereinafter referred to as LCD) 1
02 does not need to be a liquid crystal, it can be anything as long as it is flat, operates normally even when brought close to the transparent tablet 101, and does not affect the operation of the tablet 101. Tablet) 101 is functionally divided into two areas, and the two areas are the lower one-line character input area 1
09, and the other display input area 100. This area 100 displays a series of input sentences and is also an area for inputting editing control symbols (symbols as shown in FIG. 4) for editing the sentences. Call it 100.

By dividing into two as described above, the character input area 109
1 character frame can secure a size of about 12 mm x 12 mm, whereas the size of one character displayed in the text area 100 is about 5 mm x 5 yata, and the zero character input area 109 has a size of 12 mm Since the size of approximately 2 mm can be secured, sufficient resolution for recognition can be obtained even when inputting kanji etc., while the text area of 100
Since the input is an editing control symbol as shown in Fig. 4, high resolution is not required, and therefore 5 mm x 5
The size of the conventional example (Fig. 2, 3) is sufficient.
Compared to Figure 2, it is possible to display more characters with the same size device.

The basic operations of this embodiment will be explained with reference to FIG. FIG. 5 is a circuit block diagram illustrating the embodiment of FIG. 1 in more detail.

Its configuration will be explained. The input section 104 includes an at1/s conversion section 200 and a buffer 201. A scribe uses the input pen 103 to write 1 in the character frame of the character input area 109.
When characters are written down one by one, the address conversion unit ZOO inputs the pen coordinates from the tablet lO1, converts them into dots, and develops them in the buffer 201. The input section 104 is an input pen 10
The control unit 108 also inputs the on/off information of the pen touch from 3, and recognizes the start, end, etc. of input by the input pen 103. The recognition unit 105 recognizes character symbols based on the number of strokes of one character in the buffer 201, the shape of each stroke, the position of feature points, the positional relationship of strokes, and the like. Here, the break between one character can be determined when the input pen 103 moves to the next character frame, or when the Bentouch is off for a predetermined period of time or longer. The control circuit 108 is a central processing unit CPU202. RAM 203 for storing temporary data
, a ROM 204 that stores the control program according to the embodiment.
Consists of etc.

When handwriting is input into the buffer 201 from the tablet 101, the contents of the buffer 201 are stored as they are in the graphic memory 206. Therefore, the input handwriting is directly displayed on (the character input area 109 of) the LCD 102 via the sector 208 (although the tablet 101 and the LCD 102 are shown separately in the figure).

Here, the address of the graphic memory 206 is controlled by the control circuit 105 based on information from the address conversion section 200. Similarly, the recognized characters, symbols, etc. are converted into codes and stored in the character memory 205. The characters stored in the character memory 205 are processed by a character generator (
CG) 207 and displayed on the LCD 102.

In the case of input from the character input area 109, for example, as shown in FIG.
If you are inputting , area 10 on tablet 101
As described above, the dot is displayed in the area 109 in the LCD 102 corresponding to the number 9. Therefore, before one character is recognized, the handwritten character "RIS" is displayed only in area 109 of LCD 102. When the character is recognized by the recognition circuit 105,
The character code is stored in the character memory 205, but at that time, the character code in the character memory 205 is stored.
Character codes are stored in addresses corresponding to two areas, area 109 and area 100. As described above, the size of one character in the text area 100 is approximately 5 m + m x 5 mm, while the size of one character in the character input area 109 is approximately 12 m x 12 m. Therefore, when storing character codes in the two areas, distinct codes are generated and stored so that the CG 207 can generate character patterns of different sizes for the same character.

In this way, after the input characters are recognized, the character input area 109 (within the written character frame) and the text area 100 have different sizes.
5 mm x 5 lm and 12 mm x l 2 mm)
The same character is displayed. By doing so, the tablet display section can be used like a so-called word processor using a normal CRT screen.

In the above usage example, by writing characters in the character input area, the written text is displayed in the text area lOO. Next, another characteristic usage method of this embodiment will be explained. In the following embodiment, editing operations such as deletion, insertion, movement, and copying of sentences can be performed by writing editing symbols in the text display area. FIG. 4 shows an example of editing symbols. When an editing symbol as shown in FIG. 4 is input into the text area 100 of the tablet 101, the recognition circuit 105
performs recognition, and accordingly, an editing operation according to the recognition result of the editing symbol is performed on the area where the editing symbol has been input.

For example, if you want to delete a certain part of a sentence, you can do this by writing a "-" in the desired part displayed in the text area 100. Also, if you want to insert a character into a certain part of the text, write "△" or "Z" in the desired part of the text displayed in the text area lOO, and then write the desired character in the 1-character input frame. It is possible.

The operation of the embodiment when editing is insertion is shown in Figures 1 and 5.
This will be explained with reference to the figures. In the example shown in FIG. 1, the scribe mistakenly entered "information processing equipment" when it should have entered "information processing equipment", and the scribe entered the text area 100 between "doko J" and "so". The collection symbol ``△'' is written down, and then ``ri'' is written down in the character input box. Input section 4 is text area 1
Information such as the position, shape, and coordinates of feature points regarding the "△" written in 00 is stored in the buffer 201, and the recognition circuit 105
send to The recognition circuit 105 recognizes that it is an "insert" editing symbol from the shape of "Δ", the coordinates of the feature point, and the fact that it is written in the text area 100, and inputs the inserting editing symbol to the control circuit 108. Send the information and its location. The control circuit 108 determines from the position information of the editing symbol for insertion that the insertion operation should be performed between "dokoro" and "so", and waits for the next character to be input.

When the character "RIS" is written in the character input frame of the character input area 109, the character is recognized in the same manner as described above. The control circuit 108 stores the recognized character code in the character memory 2.
05, and the code “buried” is stored in the character memory 205.
Insert between the code ``dokoro'' and the code ``so''. In this way, the corrected characters "processing device" are displayed on the LCD 102, and the character memory 205 naturally also stores the code "processing device".

FIG. 5 is an example of table creation in this embodiment. In the conventional example shown in FIG. 1, the input tablet 101 is used to write down one character, and it is not possible to create a table by hand.In addition, in the conventional example shown in FIG. versus l
Because the table was made large, the entire table was rarely displayed, making it difficult to create a table.

Next, the operation of the embodiment for creating a table will be explained.

In the conventional example shown in Fig. 2, the input tablet 1 is used to write down one character and cannot create a table by hand, and in the conventional example shown in Fig. 3, the character input frame and character display are Since the tables were set in a one-to-one format, the table became large, and the entire table was rarely displayed, making it difficult to create a single table.

This embodiment can also deal with such difficulties.

FIG. 6 is a diagram explaining the table creation operation. First, before starting to create a table, the table creation designation area 110 at the lower right of the tablet 101 is touched with the input pen 103. The input unit 1O4 sends a table creation start signal to the recognition circuit 105 when inputting that there is a bent touch in the table creation designated area 110. When the recognition circuit 105 receives a table creation start signal, it operates to recognize lines to be input from now on as straight lines for table creation. In other words, when a line is input by hand in the text area 100, the handwriting is stored in the graphic memory. 206. In this way, the table frame is created by handwriting, and when the creation of the frame for one table is completed, the table creation designation area 110 is touched again. This bend touch activates the recognition circuit 105, which recognizes the pattern in the graphic memory 206 as a table frame, and sends the result to the control circuit 108.
send to In the control circuit 108, the graphic memory 206
It recognizes the intersection points of the frame from the frame of the table based on the handwriting in the figure, converts it into an accurate straight line pattern, stores it again in the graphic memory 206, and sends a signal to the display circuit 10 to display the frame of the table. The display circuit 106 displays the frame of the table. When the input unit 104 inputs that there is a bent touch in the table creation designated area 110 for the second time, the input unit 10
4 sends a "table" creation completion signal to the recognition circuit IO5.

The recognition circuit 105 determines that the creation of the table frame is completed.
The contents of the table are input by moving the cursor to a desired location using the cursor movement key 111 and writing in the character frame of the character input area 109. In this way, the table can be created at the desired location. The method of editing operations such as deletion and insertion is the same as in the example described above.

Next, various modifications will be explained. In the previous embodiment, the character input area was set to one line, but it may be set to two lines or multiple lines as shown in Fig. 7, or it may be set to horizontal ruled lines instead of a character frame as shown in Fig. 8. Even in the case of only horizontal ruled lines, it is possible to cut out characters reliably by leaving a little space between the characters or by waiting a little while after writing one character.

Furthermore, the character frame may be displayed by a display device as shown in FIG.
A display device may be stacked on top of the display device 1, or a display device and an input device may be integrated.

In addition, in the embodiment shown in FIG. 6, in order to create a table,
Touching the table creation designation area 110 was a so-called control command for creating a table, but there is also a method using an editing symbol shown in FIG. 4. That is, tablet 1
01, the upper left end and lower right corner of the table frame are specified using these two editing symbols. The recognition circuit 105 recognizes the editing symbol as a control command such as 7.

In this case, if the position where the editing symbol opening is input has the same ordinate or abscissa, it is considered to be a straight line rather than a frame. Of course, after the framework is specified, the straight lines within the framework may be input by hand as in the example described above.
In this way, there is no need to provide a special input area such as the table creation designation area 11o as in the embodiment of FIG. 6, and the operator can concentrate on operations on the text area loo when creating the table.

[Effects of the Invention] As explained above, according to the present invention, in a tablet input information processing device that is integrated with a tablet and a display, character input is performed with the tablet 1 consisting of the tablet and the display and the display section facing upward. By dividing the tablet into an area and a text area, it is possible to obtain a tablet input information processing device that has a large display capacity even though it is small, and allows not only text input but also editing work to be performed easily.

[Brief explanation of drawings]

Fig. 1 is a block diagram of an embodiment according to the present invention, Figs. 2 and 3 are block diagrams of a conventional example, Fig. 4 is a diagram of an example of editing symbols, and Fig. 5 is a block diagram of the embodiment of Fig. 1. Detailed drawings FIG. 6 is a diagram for explaining an embodiment related to table creation, and FIGS. 7, 8, 9, and 10 are diagrams for explaining other embodiments. In the figure, 1,9,101...tablet, 2,8゜10
2...Display device, 3,103...Input ben 103.4
．． 104... Input unit, 5, 105... Recognition circuit, s
, ios...Display circuit, 7...Text display, 100
...Text area, 108...Control circuit, 109...
Character input area, 110... Table creation specification area, 111.
...Cursor movement key, 200...Address conversion section,
201...Buffer, 202...CPU, 203...
...RAM, 204...ROM, 205...Character memory, 206...Graphic memory, 207
. . . Character generator, 208 . . . Selector. Patent applicant: Canon Corporation Figure 1 Figure 2 Figure 3 Figure 41 Figure 6 Figure 7 Figure 8 Figure 9

Claims (3)

[Claims] (1) It has a tablet display section in which a tablet and a display are integrated, and a recognition section that recognizes handwritten characters or symbols written on the tablet display section, and the tablet display section has a first and a second display section. A tablet input information processing device characterized in that the first region is used as an input region for handwritten characters or symbols, and the second region is used as a text region for displaying and editing text. (2) Text editing in the second area is the insertion of characters or symbols, and the editing control symbols for this editing are input via the tablet in the second area, and the characters or symbols to be inserted are input. The tablet input information processing device according to claim 1, characterized in that the information processing is performed via a tablet in the first area. (3) Text editing in the second area includes deleting, moving, ruling, or copying characters, and editing control symbols for the editing are input via the tablet in the second area. A tablet input information processing device according to claim 1.