JPH05334496A - Display control device - Google Patents

Abstract

(57) [Abstract] [Purpose] To improve the operability of the device and prevent the user from feeling bothersome. [Structure] When a handwritten character input in the input frame 32a of the input window 32 is recognized and the recognition result display button 22 is operated by the input pen 33 (FIG. 3D), the character as a character recognition result is printed. It is displayed (FIG. 3 (e)).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display control device which recognizes and displays handwritten characters and is suitable for use in, for example, an electronic notebook device (portable computer).

[0002]

2. Description of the Related Art FIG. 6 is a block diagram showing the configuration of an example of a conventional personal computer. The character input display screen in which the tablet 1 formed of a transparent member is arranged on the front surface of the LCD 2 has an OK button 21, an input frame 61a, a recognition start button 51, and a cancel button 52 as shown in FIG. The input window 61 is displayed, and the input pen 33 is used to input the input frame 61 of the input window 61.
When a handwritten character is input on the a (tablet 1) (when the locus of the handwritten character is drawn), the tablet 1 recognizes the locus (handwriting) of the character and the handwriting buffer 4 of the core 40.
Output to 1.

The recognition core unit 40 includes a character recognition unit 14, a handwriting buffer 41, a recognition result buffer 42, and a control unit 4.
It consists of three. The handwriting buffer 41 is controlled by the control unit 43, and is input from the tablet 1 such as the handwritten character “A” shown in FIG. ) Temporarily store the locus (handwriting) of the handwritten character input above. The character recognition unit 14 is controlled by the control unit 43, and when the recognition start button 51 on the input window 61 is operated by the input pen 33, the locus (handwriting) of the handwritten character stored in the handwriting buffer 41 is read and the character is recognized. It recognizes and outputs the print type corresponding to the recognition result to the recognition result buffer 42. The recognition result buffer 42 temporarily stores the characters output from the character recognition unit 14, and the LCD under the control of the control unit 43.
Supply to 2. The control unit 43 controls each block forming the recognition core unit 40.

The LCD 2 displays, for example, the characters supplied from the recognition result buffer 42 of the recognition core 40 by the input pen 33.
Input frame 61a of the input window 61 (tablet 1)
The handwriting of the handwritten character input above (FIG. 7A) is displayed instead (FIG. 7B).

In the device constructed as described above, the LCD 2
When one handwritten character is input by the input pen 33 to the input frame 61a of the input window 61 displayed on the character input display screen in which the tablet 1 formed of the transparent member is arranged on the front surface of the tablet (see FIG. a)), from tablet 1,
The handwriting of the character is output to the handwriting buffer 41 of the recognition core 40.

In the handwriting buffer 41, the tablet 1
The handwriting of the handwritten character input by the input pen 33 on the input frame 61a (tablet 1) of the input window 61 is temporarily stored, and the recognition start button 51 on the input window 61 is operated by the input pen 33. Then, in the character recognition unit 14, the locus (handwriting) of the handwritten character stored in the handwriting buffer 41 is read and the character is recognized, and the printed character corresponding to the recognition result is output to the recognition result buffer 42. In the recognition result buffer 42, the character recognition unit 14
The printed characters are temporarily stored and supplied to the LCD 2 under the control of the control unit 43.

On the LCD 2, the type supplied from the recognition result buffer 42 of the recognition core 40 is the input pen 33.
Input frame 61a of the input window 61 (tablet 1)
It is displayed in place of the handwriting of the handwritten character (FIG. 7A) input above (FIG. 7B).

If the type displayed on the LCD 2 does not correspond to the handwriting of a handwritten character, when the cancel button 52 on the input window 61 is operated with the input pen 33, the type displayed on the input frame 61a is displayed. Is cleared (erased) and the handwriting input waiting state is entered. Also, LD
When the type displayed on C2 corresponds to the handwriting of the handwritten character, the OK button 2 on the input window 61
When 1 is operated by the input pen 33, the type displayed on the input frame 61a on the input window 61 of the LCD 2 is changed to LC.
It is displayed in the page area of D2 (the area in which the confirmed characters (print characters) are displayed) (not shown).

Next, referring to the flow chart of FIG.
Further, its operation will be described. First, in step S21, the handwriting buffer 41, the recognition result buffer 42, and the input frame 61a are cleared (reset), and the process proceeds to step S22. In step S22,
When one handwritten character is input to the input frame 61a with the input pen 33, the handwriting of the handwritten character is written in the handwriting buffer 41.
Output to step S23. In step S23, it is determined whether the recognition start button 51 has been operated with the input pen 33.

If it is determined in step S23 that the recognition start button 51 has not been operated with the input pen 33, the process returns to step S22, and in step S23,
The processes of steps S22 and S23 are repeated until it is determined that the recognition start button 51 has been operated with the input pen 33. When it is determined in step S23 that the recognition start button 51 is operated by the input pen 33, the process proceeds to step S24, and the handwriting (trajectory) of the handwritten character output to the handwriting buffer 41 in step S22 is recognized.

Then, the process proceeds to step S25, in which the character type as the character recognition result of the handwritten character in step S24 is
Displayed in the input frame 61a, the process proceeds to step S26. In step S26, it is determined whether or not the OK button 21 has been operated with the input pen 33. If it is determined in step S26 that the OK button 21 has been operated with the input pen 33, the process proceeds to step S27, and the characters displayed in the input frame 61a in step S25 are displayed at a predetermined position in the page area of the LCD 2, Returning to step S21, the processing from step S21 is repeated again.

In step S26, the OK button 21
When it is determined that is not operated with the input pen 33,
In step S28, the cancel button 52 is the input pen 33.
It is determined whether or not it has been operated. When it is determined in step S28 that the cancel button 52 has not been operated with the input pen 33, the process returns to step S26, and it is determined in step S26 that the OK button 21 has been operated with the input pen 33, or in step S28. Cancel button 52
The processes of steps S26 and S28 are repeated until is determined to have been operated with the input pen 33. Step S2
When it is determined that the cancel button 52 is operated by the input pen 33 in 8, the process returns to step S21 and the processes from step S21 are repeated.

As described above, in the above-mentioned device, when one handwritten character is input and the recognition start button 51 is operated, the recognition of the character is started and the confirmation of the recognition result is confirmed by the OK button 21. When the button is operated, a character corresponding to the character recognition result is displayed in the page area of the LCD 2.

Therefore, not only the operation is complicated, but also the next handwritten character must be input after waiting for the recognition of one input handwritten character, which causes a problem for the user. ..

Therefore, there is an apparatus capable of sequentially inputting handwritten characters as shown in FIG. In the figure, the same reference numerals are given to the portions corresponding to those in FIG. On the character input display screen in which the tablet 1 formed of a transparent member is arranged on the front surface of the LCD 2, as shown in FIG. 10, an OK button 21, a recognition start button 51, and a plurality of frames (in FIG. An input window 81 having an input frame 81a composed of (frame) is displayed,
In the input frame 81a of the input window 81, up to four handwritten characters can be input with the input pen 33 at one time.

The recognition core unit 70 (FIG. 9) includes a buffer designation unit 11, a handwriting buffer 12, a buffer selection unit 13, a character recognition unit 14, a buffer designation unit 15, and a recognition result buffer 1.
6, a display position selection unit 17, and a control unit 71. The buffer designating unit 11 corresponds to the position of the input frame 81a in which the handwritten character is input with the input pen 33, and stores the handwriting of the handwritten character output from the tablet 1 in the same number of buffers as the number of input frames 81a. Handwriting buffer 1 consisting of
Output to 2. The handwriting buffer 12 is composed of the same number of buffers as the number of frames of the input frame 81a, and the handwriting of the handwriting output from the tablet 1 via the buffer designating unit 11 is input by the input pen 33. It is temporarily stored in correspondence with the position of the frame of the frame 81a. That is, the handwriting buffer 12 stores, for example, a handwriting of a handwritten character input to the leftmost frame of the input frame 81a in a buffer having a higher address, and is input to the rightmost frame of the input frame 81a. The handwriting of the handwritten character is sequentially stored in a buffer having lower addresses.

The buffer selection unit 13 includes a handwriting buffer 12
The handwriting of the handwritten character stored in is read and output to the character recognition unit 14.

The buffer designating section 15 corresponds to the position (frame) at which the handwritten character recognized as the character type is output as the character recognition result output from the character recognizing section 14 in the input frame 81a. , To the recognition result buffer 16 including the same number of buffers as the input frames 81a. The recognition result buffer 16 is composed of the same number of buffers as the number of frames of the input frame 81a, and a handwritten character, which is character-recognized as the type, is input as the typed character output from the character recognition unit 14 via the buffer designating unit 15. It is temporarily stored in correspondence with the position of the frame of the input frame 81a. That is, the recognition result buffer 16 stores, for example, a character type in which the handwriting of the handwritten character, which is input in the leftmost frame of the input frame 81a, is recognized in a buffer having a higher address.
The characters for which the handwriting of the handwritten character input in the frame on the right of a is recognized are sequentially stored in a buffer having lower addresses.

The display position selecting section 17 reads out the characters stored in the recognition result buffer 16 and supplies them to the LCD 2. The control unit 71 controls each block forming the recognition core unit 70.

In the device constructed as described above, the LCD 2
When handwritten characters are input by the input pen 33 into an arbitrary frame of the input frame 81a of the input window 81 displayed on the character input display screen in which the tablet 1 formed of the transparent member is arranged on the front surface of the tablet (Fig. 11 (a)), tablet 1
, The handwriting of the character is output to the handwriting buffer 12 via the buffer specifying unit 11 of the recognition core unit 70, and in the handwriting buffer 12, the handwriting of the handwritten character is input by the input pen 33. It is temporarily stored in a buffer having an address corresponding to the position of the frame 81a.

Here, for example, as shown in FIG. 11A, the input pen 33 is placed in another frame, for example, the frame on the right side of the frame of the input frame 81a in which the handwritten character "A" is input. When the pen is down, it is considered that the input of the handwritten character has moved to the box on the right side, that is, it is considered that the input of the character in the box where the handwritten character "A" was input so far is completed, and the buffer In the selection unit 13, of the frame stored in the handwriting buffer 12, which is considered to be the end of input of characters,
The handwriting of the handwritten character "A" is read out, and the character recognition unit 14
At, the character recognition of the handwriting of the handwritten character "A" is started.

As for the handwritten character input in the rightmost frame of the input frame 81a, when the recognition start button 51 is operated by the input pen 33, the character recognition section 14 starts character recognition.

The character "a" as the character recognition result of the handwriting of the handwritten character from the character recognition unit 14 is stored in the buffer designation unit 15
When it is supplied to the recognition result buffer 16 via, the character “a” is temporarily stored in the recognition result buffer 16. Then, the display position selection unit 17 reads out the character “a” stored in the recognition result buffer 16,
It is supplied to CD2. On the LCD2, the print type "A"
Is displayed in place of the handwriting of the handwritten character “A” input in the input frame 81a (FIG. 11B).

In FIG. 11 (b), the character "a" in the leftmost frame of the input frame 81a has already been recognized and displayed as a character, and the second frame from the left of the input frame 81a is displayed. Indicates that the handwritten character "i" is being recognized, and the handwritten character "u" in the third frame from the left of the input frame 81a is being input.

Next, the operation of the apparatus shown in FIG. 9 will be further described with reference to the flow charts shown in FIGS. 12 and 13. First, in step S31 shown in FIG. 12, it is determined whether or not the input pen 33 is pen-down in any of the four frames of the input frame 81a. Step S31
When it is determined that the input pen 33 is not pen-downed in any one of the four frames of the input frame 81a in
The process ends.

When it is determined in step S31 that the input pen 33 is pen-downed in any of the four frames of the input frame 81a, the process proceeds to step S32, and the input pen 33 is pen-downed in the input frame 81a. The position (frame), that is, the frame in which the handwritten character is input is detected.

Here, the position (frame) of the input frame 81a in which the handwritten character detected in step S32 is input is
The k-th frame (k-th frame from the left) (k = 1, 2, 3,
Or 4).

Then, in step S33, the recognition result buffer 16 having the address corresponding to the kth frame in which the handwritten character is input is stored in the buffer of the recognition result buffer 16 as the recognition result of the character recognition performed in the past. It is determined whether or not the print type is stored. When it is determined in step S33 that the type of the recognition result from the character recognition unit 14 is stored in the buffer of the recognition result buffer 16 having the address corresponding to the k-th frame in which the handwritten character is input, Proceeding to step S34, the buffer of the recognition result buffer 16 having the address corresponding to the kth frame in which the handwritten character is input is cleared, and the process proceeds to step S35.

In step S33, it is determined that the character type as the recognition result from the character recognizing unit 14 is not stored in the buffer of the recognition result buffer 16 having the address corresponding to the kth frame in which the handwritten character is input. In this case, step S34 is skipped, the process proceeds to step S35, the handwriting of the handwritten character input in the kth frame is stored in the handwriting buffer 13, and the process proceeds to step S36. In step S36, it is determined whether or not the input pen 33 has been pen-down in a frame other than the k-th frame, that is, whether or not input of handwritten characters has started in a frame other than the k-th frame.

When it is determined in step S36 that the input of the handwritten character has started in a frame other than the k-th frame, step S37 is skipped and the process proceeds to step S38. If it is determined in step S36 that the input of handwritten characters has not been started in a frame other than the k-th frame, step S36
In step 37, it is determined whether the recognition start button 51 has been operated with the input pen 33. In step S37,
When it is determined that the recognition start button 51 has not been operated with the input pen 33, step S38 is skipped and the process ends.

If it is determined in step S37 that the recognition start button 51 has been operated with the input pen 33, the flow advances to step S38 to input in the kth frame, and step S3
In step 5, a recognition request is output to the character recognition unit 14 so as to start recognition of the handwriting of the handwritten character stored in the handwriting buffer 13, and the process ends.

The above-described step S3 in FIG.
The processes of 1 to S38 are interrupt processes, and are performed at predetermined time intervals, for example, by a timer interrupt.

Next, FIG. 13 is a flow chart showing the main routine of the operation of the apparatus of FIG. First, in step S41, the interrupt process (steps S31 to S38) of the flowchart shown in FIG. 12 is prohibited, and the process proceeds to step S42. In step S42, the handwriting buffer 12, the recognition result buffer 16, and the input frame 81a
Is cleared, and in step S43, step S4
The interrupt processing of the flowchart shown in FIG. 12, which is prohibited in 1, is permitted.

Then, in step S44, it is determined whether or not there is a frame in the input frame 81a for which the recognition request is output in step S38 of FIG. When it is determined in step S44 that there is a frame (kth frame) in the input frame 81a for which the recognition request is output in step S38 of FIG. 12, the process proceeds to step S45, and the kth frame for which the recognition request is output is selected. The handwriting of the input handwritten character is recognized, and the process proceeds to step S46. In step S46, the character type as the character recognition result in step S45 is k.
The frame number is displayed, and the process returns to step S44. Step S4
4, the processes of steps S44 to S46 are repeated until it is determined that there is no frame in the input frame 81a for which the recognition request is output in step S38 of FIG.

When it is determined in step S44 that there is no frame in the input frame 81a for which the recognition request is output in step S38 of FIG. 12, the process proceeds to step S47, and the OK button 21 on the input window 81 is pressed by the input pen 33. It is determined whether or not it has been operated. When it is determined in step S47 that the OK button 21 on the input window 81 is not operated by the input pen 33, step S47
Returning to step 44, the processes of steps S44 to S47 are repeated until it is determined in step S47 that the OK button 21 on the input window 81 has been operated by the input pen 33.

If it is determined in step S47 that the OK button 21 on the input window 81 has been operated by the input pen 33, that is, if the printed character displayed in step S46 corresponds to the handwriting of the handwritten character (step S47). S4
(If the handwritten character is correctly recognized in step 5), the process proceeds to step S48, the print character displayed in the input frame 81a in step S46 is displayed at a predetermined position in the page area of the LCD 2, and the process returns to step S41 and again. Step S4
The process from 1 is repeated.

[0037]

As described above, in this conventional apparatus, handwritten characters can be sequentially input to the input frame 81a having a plurality of frames.
Further, when the input of the handwritten character is completed, the handwritten character in the frame is sequentially recognized, and the printed character corresponding to the character recognition result is displayed.

Therefore, if a handwritten character input in the past is erroneously recognized, a non-printable character corresponding to the handwritten character,
That is, since the wrong type is displayed, in order to correct the type, if the input pen 33 is released from the frame in which the handwritten character is currently input and the pen is down in the frame in which the wrong type is displayed, Even if a character in the frame in which the handwritten character is currently input is being input, recognition of the handwritten character is started.

Therefore, the characters in the frame in which the handwritten character is currently input are also erroneously recognized, so that even if the wrong character is displayed, it cannot be corrected immediately and the operability is poor. there were.

The present invention has been made in view of such a situation, and is to improve the operability of the apparatus and prevent the user from feeling awkward.

[0041]

A display control device according to claim 1 recognizes a character input by handwriting and converts it into a printed character by a character recognition section 14 or a processing step S15 of a program. , The recognition result buffer 16 as a storage means for sequentially storing the characters output from the character recognition unit 14 or the processing step S15 of the program.
And the recognition result display button 22 as a display requesting means for requesting the display of the characters stored in the recognition result buffer 16 or the processing steps S7 and S of the program.
And 8 are provided.

The display control device according to a second aspect of the invention is further characterized by further including an OK button 21 as a display confirming means for confirming the display of the characters on the screen or a processing step S18 of the program.

A display control device according to a third aspect of the present invention recognizes a character input by handwriting and recognizes the character, and converts the character into a print character recognition unit 14 or a processing step S15 of the program and the character recognition unit 14 or A recognition result buffer 16 as a storage means for sequentially storing the characters output from the processing step S15 of the program, and a control unit 18 as a collective display means for collectively displaying the characters stored in the recognition result buffer 16 on the screen. It is characterized by being provided.

[0044]

In the display control device according to the first aspect, a character input by handwriting is recognized and converted into a printed character,
It is sequentially stored in the recognition result buffer 16. Then, only when it is requested to display the character type stored in the recognition result buffer 16 on the screen, the character type as the character recognition result is displayed on the screen. Therefore, since a character type as a character recognition result can be displayed on the screen as needed, the operability of the apparatus is improved and the user is prevented from feeling annoyance.

In the display control device according to the second aspect, it is possible to confirm the display of the type character on the screen after confirming the error of the type character, for example, so that the operability of the device is improved.

In the display control device according to the third aspect, a character input by handwriting is recognized and converted into a printed character. Then, the printed characters are sequentially stored in the recognition result buffer 16 and are collectively displayed on the screen. Therefore, the characters as a result of character recognition are collectively displayed on the screen, so that the operability of the apparatus is improved and the user is prevented from feeling annoying.

[0047]

1 is a block diagram showing the configuration of an embodiment of a portable computer to which the display control device of the present invention is applied. In the figure, parts corresponding to those in FIG. 6 or 9 are designated by the same reference numerals. On the character input display screen (FIG. 2) in which the tablet 1 formed of a transparent member is arranged on the front surface of the LCD 2, an OK button 21, a recognition result display button 22 (hereinafter referred to as the display button 2) as shown in FIG.
2), and an input window 32 having an input frame 32a composed of a plurality of frames (four frames in the figure) is displayed. In the input frame 32a of the input window 32, up to four handwritten characters can be input at one time. It is possible to input with the pen 33.

The recognition core unit 10 (FIG. 1) includes a buffer designation unit 11, a handwriting buffer 12, a buffer selection unit 13, a character recognition unit 14, a buffer designation unit 15, and a recognition result buffer 1.
6, a display position selection unit 17, and a control unit 18. The control unit 18 outputs the clock signal required by each block constituting the recognition core unit 10, and when the display button 22 of the input window 32 is operated by the input pen 33 (FIG. 2 or FIG. 3), the recognition is performed. The control for displaying the characters stored in the result buffer 16 on the LCD 2 is performed.

Next, the operation will be described. LCD
2 is input to an arbitrary frame of the input frame 32a of the input window 32 (FIG. 3A) displayed on the character input display screen (FIG. 2) in which the tablet 1 formed of a transparent member is arranged on the front surface. When handwritten characters are input with the pen 33 (see FIG.
(B)), in the tablet 1, the handwriting of the character is output to the handwriting buffer 12 via the buffer designating unit 11 of the recognition core 10, and in the handwriting buffer 12, the handwriting of the handwritten character and the handwriting character are input by the input pen. It is temporarily stored in a buffer having an address corresponding to the position of the frame of the input frame 32a input at 33.

For example, as shown in FIG. 3B, the input pen 33 is pen-downed to another frame such as the frame on the right side of the frame of the input frame 32a in which the handwritten character "A" is input. Then, it is considered that the input of the handwritten character is shifted to the adjacent frame on the right side, that is, it is considered that the input of the character into the frame where the handwritten character “A” has been input until now is completed, and the buffer selection unit 13 At, the handwriting of the handwritten character “a” stored in the handwriting buffer 12 in the frame considered to be input of the character is read out, and in the character recognition unit 14,
Character recognition of the handwriting of the handwritten character "A" is started.

The character "a" as the character recognition result of the handwriting of the handwritten character from the character recognition unit 14 is stored in the buffer designation unit 15
When it is supplied to the recognition result buffer 16 via, the character “a” is temporarily stored in the recognition result buffer 16.

Further, the same processing is performed for the handwritten characters such as "i", "u", and "e" entered in other boxes of the input box 32a (FIG. 3 (c)). ,
In the recognition result buffer 16, the characters "a", "i",
"U" and "E" are temporarily stored.

When the display button 22 of the input window 32 is operated by the input pen 33 (FIG. 3 (d)), the control section 18 supplies the characters stored in the recognition result buffer 16 to the LCD 2. A control signal is output to the display position selection unit 17. When the control signal from the control unit 18 is detected in the display position selection unit 17, the type characters stored in the recognition result buffer 16 are read out and the LC
It is supplied to D2. In the LCD 2, the print characters “a”, “i”, “u”, and “e” supplied from the display position selection unit 17 and stored in the recognition result buffer 16 are the handwritten characters “input” in the input frame 32a. "A", "I",
It is displayed in place of the handwriting of "u" and "e" (Fig. 3
(E)).

Next, the operation will be further described with reference to the flow charts of FIGS. First, in step S1 shown in FIG. 4, it is determined whether or not the input pen 33 is pen-down in any of the four frames of the input frame 32a. In step S1, input frame 3
When it is determined that the input pen 33 is not pen-downed in any of the four frames 2a, the process ends.

In step S1, 4 in the input frame 32a
When it is determined that the input pen 33 is pen-down in any one of the two frames, the process proceeds to step S2, and the position (frame) of the input frame 32a in which the input pen 33 is pen-down, that is, a handwritten character is input. The frame that is present is detected.

Here, the position (frame) of the input frame 32a in which the handwritten character detected in step S2 is input is k
The number frame (k-th frame from the left) (k = 1, 2, 3, or 4).

Then, in step S3, the recognition result buffer 16 having the address corresponding to the kth frame in which the handwritten character is input is stored in the buffer of the recognition result buffer 14 as the recognition result of the character recognition performed in the past. It is determined whether or not the print type is stored. In step S3,
When it is determined that the character type as the recognition result from the character recognition unit 14 is stored in the buffer of the recognition result buffer 16 having the address corresponding to the kth frame in which the handwritten character is input, the process proceeds to step S4. , The buffer of the recognition result buffer 16 having the address corresponding to the k-th frame in which handwritten characters are input is cleared, and step S5
Proceed to.

In step S3, it is determined that the typed character as the recognition result from the character recognition unit 14 is not stored in the buffer of the recognition result buffer 16 having the address corresponding to the kth frame in which the handwritten character is input. In this case, step S4 is skipped, the process proceeds to step S5, the handwriting of the handwritten character input in the kth frame is stored in the handwriting buffer 13, and the process proceeds to step S6. Step S6
In, it is determined whether or not the input pen 33 is pen-down in a frame other than the k-th frame, that is, whether or not input of handwritten characters is started in a frame other than the k-th frame.

When it is determined in step S6 that the input of the handwritten character has started in a frame other than the k-th frame, steps S7 and S8 are skipped and the process proceeds to step S9. When it is determined in step S6 that the input of the handwritten character is not started in the frame other than the k-th frame, the process proceeds to step S7, and the display button (recognition result display button) 22 is operated by the input pen 33. Is determined. When it is determined in step S7 that the display button 22 is not operated with the input pen 33, the process ends.

When it is determined in step S7 that the display button 22 is operated with the input pen 33, the process proceeds to step S8, and the type corresponding to the handwritten character input in the kth frame is input in the kth frame. A display request flag requesting display in place of handwritten characters is set, and the process proceeds to step S9. In step S9, the character recognition unit 14 starts the recognition of the handwriting of the handwritten character input in the kth frame and stored in the handwriting buffer 13 in step S5.
A recognition request is output to and the process ends.

The above-described steps S1 to S9 of FIG. 4 are interrupt processes, and are performed at predetermined time intervals by, for example, a timer interrupt.

Next, FIG. 5 is a flow chart showing the main routine of the operation of the portable computer of FIG. First, in step S11, the interrupt process (steps S1 to S9) of the flowchart shown in FIG. 4 is prohibited, and the process proceeds to step S12. In step S12, the handwriting buffer 12, the recognition result buffer 16, and the input frame 32a are cleared, and in step S13,
The interrupt processing of the flowchart shown in FIG. 4, which is prohibited in step S11, is permitted.

Then, in step S14, it is determined whether or not there is a frame in the input frame 32a for which the recognition request is output in step S9 of FIG. If it is determined in step S14 that there is a frame (k-th frame) in the input frame 32a for which the recognition request is output in step S9 of FIG. 4,
In step S15, the handwriting of the handwritten character input in the k-th frame for which the recognition request is output is recognized,
It returns to step S14. In step S14, as shown in FIG.
The processes of steps S14 and S15 are repeated until it is determined in step S9 that there is no frame (k-th frame) in the input frame 32a for which the recognition request is output.

If it is determined in step S14 that there is no frame (k-th frame) in the input frame 32a for which the recognition request is output in step S9 of FIG. 4, the process proceeds to step S16, and the display request is issued in step S8 of FIG. It is determined whether or not there is a frame (k-th frame) in the input frame 32a for which a flag is set. In step S16, step S in FIG.
If it is determined in step 8 that there is no frame (k-th frame) in the input frame 32a for which the display request flag is set, step S17
And skip to step S18.

If it is determined in step S16 that there is a frame (k-th frame) in the input frame 32a for which the display request flag is set in step S8 of FIG. 4, step S1
The process proceeds to step S7, where the typed character as the result of character recognition in step S15 is displayed in the kth frame instead of the handwritten character input in step S1 of FIG. 4, and the process proceeds to step S18.

In step S18, it is determined whether or not the OK button 21 on the input window 32 has been operated with the input pen 33. When it is determined in step S18 that the OK button 21 on the input window 32 is not operated by the input pen 33, the process returns to step S14,
In step S18, the OK button 2 on the input window 32
The processes of steps S14 to S18 are repeated until it is determined that 1 is operated by the input pen 33.

If it is determined in step S18 that the OK button 21 on the input window 32 has been operated by the input pen 33, that is, if the printed characters displayed in step S17 correspond to the handwriting of handwritten characters (step S1
If the handwritten character is correctly recognized in step 5), the process proceeds to step S19, and the type displayed in the input frame 32a in step S17 is the page area 31 (FIG. 2) of the LCD 2.
Is displayed at a predetermined position of, the process returns to step S11, and the processing from step S11 is repeated again.

As described above, when the input of the handwritten character is completed, the character recognition is sequentially performed, and the print character corresponding to the character recognition result is displayed only when the display button 22 is operated by the input pen 33.

Therefore, when a handwritten character input in the past is erroneously recognized, the print result as the erroneous recognition result is not displayed while another handwritten character is being input.
It is prevented that the user feels troublesome.

In this embodiment, the display button 2
The character corresponding to the character recognition result is displayed only when 2 is operated by the input pen 33.
In addition, after the handwritten characters are input to all the frames of the input frame 32a, the characters as the recognition result of all the handwritten characters stored in the recognition result buffer 16 can be collectively displayed on the LCD 2.

[0071]

According to the display control device of the first aspect, the characters input by handwriting are recognized, converted into printed characters, and sequentially stored in the storage means. Then, only when it is requested to display the characters stored in the storage means on the screen, the characters as the character recognition result are displayed on the screen. Therefore, since a character type as a character recognition result can be displayed on the screen as needed, the operability of the apparatus is improved and the user is prevented from feeling annoyance.

According to the display control device of the second aspect,
For example, since it is possible to confirm the display of the type on the screen after confirming the error of the type, the operability of the apparatus is improved.

According to the display control device of the third aspect,
Characters input by handwriting are recognized and converted into printed characters. Then, the printed characters are sequentially stored in the storage means and are collectively displayed on the screen. Therefore, the characters as a result of character recognition are collectively displayed on the screen, so that the operability of the apparatus is improved and the user is prevented from feeling annoying.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of a portable computer to which a display device of the present invention is applied.

FIG. 2 shows a tablet 1 on the front of the LCD 2 of the embodiment of FIG.
It is a top view which shows the character input display screen in which was arrange | positioned.

FIG. 3 shows the tablet 1 on the front surface of the LCD 2 of the embodiment of FIG.
It is a top view which shows the input window 32 displayed on the character input display screen in which is arrange | positioned.

FIG. 4 is a flow chart for explaining the operation of the embodiment of FIG.

5 is a flowchart for explaining the operation of the embodiment of FIG.

FIG. 6 is a block diagram showing a configuration of an example of a conventional portable computer.

7 is a plan view showing an input window 61 displayed on a character input display screen in which the tablet 1 is arranged in front of the LCD 2 of the portable computer of FIG.

8 is a flow chart for explaining the operation of the portable computer of FIG.

FIG. 9 is a block diagram showing the configuration of another example of a conventional portable computer.

10 is a plan view showing an input window 81 displayed on a character input display screen in which the tablet 1 is arranged in front of the LCD 2 of the portable computer shown in FIG.

11 is a plan view showing an input window 81 displayed on a character input display screen in which the tablet 1 is arranged in front of the LCD 2 of the portable computer of FIG.

12 is a flow chart for explaining the operation of the portable computer of FIG.

13 is a flow chart for explaining the operation of the portable computer of FIG.

[Explanation of symbols]

 1 Tablet 2 LCD 10 Recognition Core Part 11 Buffer Designation Part 12 Handwriting Buffer 13 Buffer Selection Part 14 Character Recognition Part 15 Buffer Designation Part 16 Recognition Result Buffer 17 Display Position Selection Part 18 Control Part 21 OK Button 22 Recognition Result Display Button (Display Button) ) 31 page area 32 input window 32a input frame 33 input pen 40 recognition core part 41 handwriting buffer 42 recognition result buffer 43 control part 51 recognition start button 52 cancel button 61 input window 61a input frame 70 recognition core part 71 control part 81 input window 81a Input frame

Claims (3)

[Claims] 1. A recognition conversion means for recognizing a character input by handwriting and converting it into a print character, a storage means for sequentially storing the print characters output from the recognition conversion means, and a print character stored in the storage means. And a display requesting means for requesting display on the screen. 2. The display control device according to claim 1, further comprising display confirmation means for confirming the display of the printed characters on the screen. 3. A recognition conversion means for recognizing a character input by handwriting and converting it into a print character, a storage means for sequentially storing the print characters output from the recognition conversion means, and a print character stored in the storage means. And a collective display means for collectively displaying on the screen.