JPH03214309A - handwritten input processing device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Summary] Regarding an input/output device that has a handwriting input function, a handwriting input function can be provided by partial addition to a device that uses an input display integrated tablet for display and input. Aiming at a handwriting input processing method, it includes a display section, an area determination section, a recognition processing section, and an input/output processing section, and the display section is integrally configured with a flat display and an input tablet, and the flat display is configured to handle the input/output processing. The input tablet displays the output from the processing unit, and the input tablet is configured to have one plane and generate an input signal indicating the coordinates of the indicated position on the plane when instructed by a predetermined instruction means. , the plane has a first input part that overlaps with the display surface of the flat display, and a second input part that is outside the display surface, and the area determination section is configured to detect the input from the input tablet. identify the signal, transfer the input signal to the input/output processing section if the input is from the first input section, and to the recognition processing section if the input is from the second input section; The recognition processing section is configured to receive the input signal, execute predetermined character recognition and recognition processing, and notify the result of the execution to the person output processing section.

[Industrial Application Field] The present invention relates to a handwriting input processing method for an input/output device having a handwriting input function, particularly a device using an input/display integrated tablet 7} for display and input.

Handwritten input is considered to be an input means that allows even amateurs who are unfamiliar with conventional computer operations to operate computers relatively easily.

[Prior Art and Problems to be Solved by the Invention] In an input/output device 1 that enables handwritten input, a so-called input/display integrated tablet is often used for display and input. As is well known, an input/display integrated tablet is, for example, a third tablet.
An input possible area 41 with a coordinate input function is displayed on a flat display 40 such as a liquid crystal display bag as shown in FIG.
(The part shown surrounded by the broken line) is overlapped to allow input on the display screen. Input control in this case is achieved by using a so-called stylus pen 42 or the like as an indicating means to indicate the position on the plane of the input area 41 of the tablet. Output the value from the tablet.

Therefore, if you use a tablet with an integrated input display for handwriting input, you can input characters in the same way as writing on paper by operating the stylus pen used to specify the coordinates on the display surface. .

However, in such an input/output bag storage, it is necessary to provide a character input area within the display surface in order to input handwritten characters, and as a result, it is generally necessary to change the layout of the display surface. Therefore, it is necessary to modify existing application programs.

The present invention aims to provide a handwriting input processing method that can partially add a handwriting input function to a device that uses an input/display integrated tablet for display and input without affecting existing application programs. do.

[Means to solve the problem]

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

The figure shows the configuration of a handwritten input processing method, which includes a display section 1, an area determination section 2, a recognition processing section 3, and an input/output processing section 4,
The display unit 1 is composed of a flat display 5 and an input tablet 6, and the flat display 5 is integrated with the input/output processing unit 4.
The input tablet 6 is configured to: (1) be a plane and, when instructed by a predetermined instruction means 9, generate an input signal indicating the coordinates of the indicated position on the plane; The plane has a first input part 7 that overlaps the display surface of the flat display 5 and a second input part 8 that is outside the display surface, and the area determination unit 2 receives input from the input tablet 6. The input signal is identified and sent to the input/output processing section 4 in the case of input from the first input section 7, and to the recognition processing section 3 in the case of input from the second input section 8. transfer,
The recognition processing section 3 receives the input signal, executes a predetermined character recognition process, and notifies the input/output processing section 4 of the result of the execution.

Further, a second flat display 10 can be superimposed on the second input portion 8 of the input tablet 6, and the recognition processing section 3 has a display processing section 11. Based on the coordinate position indicated by the input signal transferred to the recognition processing unit 3, a predetermined L-shape representing the display position of the second flat display 10 corresponding to the coordinate position is displayed on the second flat display 10. indicate.

[For production]

With this processing method, the handwriting input portion of the input tablet is provided outside the flat display 5 as the second input portion 8, so that the same display surface as before can be maintained on the flat display 5, and the recognition By inputting the output of the character recognition result of the processing unit 3 to the input/output processing unit 4 through a keyboard input interface, for example, the input/output processing unit 4
As for the applications that are connected and executed therewith, it is possible to provide a handwriting input function without requiring modification of either input or output. Further, for this purpose, the input plane of the input tablet 6 is only slightly expanded compared to the conventional one, and there is no need to provide a separate input means, so it can be realized with a relatively economical configuration.

〔Example〕

FIG. 2 is a block diagram showing the configuration of an embodiment of the present invention.

The display unit 30 shown in the figure is composed of an input/display integrated tablet as described above, but as shown in FIG. The rectangular area (encircled by a broken line in the figure) is overlapped, and the part of the input possible area 43 that overlaps with the flat display 40 (hereinafter referred to as A display area) is a first input part (hereinafter referred to as A area), A second input portion (hereinafter referred to as the B Si region) is provided in the non-overlapping portion and is used as described below. A second flat display 44 (hereinafter referred to as a B display section) can be superimposed on this BSI area.

In addition, in the example shown in the figure, the right side of area B is further designated as a third input area (hereinafter referred to as area C) 45, and displays indicating the positions of various required functions (for example, in FIG. This is an area for

Each of the above flat displays is, for example, a liquid crystal display device, and the resolution is, for example, 640 x 400 dots for the A display section and 280 x 60 dots for the B display section.

Note that the B area does not necessarily have to be placed in the relative position as shown in the diagram with respect to the AeJ area, and may be located outside the ASN area, but the A display section should not be hidden when operating the B area, and the Considering that the player should be independent of handedness, the example of the arrangement shown in the figure is a suitable arrangement.

Referring to FIG. 2, when the user operates the stylus pen 49 to specify coordinates within the inputtable area 43 of the tablet, the coordinate values detected by the tape note are displayed in the area determination unit 3.
4 is input. The area determining unit 34 determines that this coordinate value is A,
It is determined which of the B and C areas the coordinate value is included in, and if the coordinate value is within the eight areas, it is passed to the coordinate conversion unit 35.

The coordinate conversion unit 35 converts the received coordinate values into dot coordinates on the display surface of the A display unit corresponding to the position, and
Since the data is input to the standard mouse interface section 36 of the computer 29, the computer 29 can process it in the same way as when the cursor position on the screen is specified using a mouse.

When the area determining unit 34 determines that the area is the B area, the area determining unit 34 passes the coordinate values to the coordinate converting unit 37 and the stroke data storage unit 39. The coordinate conversion unit 37 converts the received coordinate values into dot coordinates on the display surface of the B display unit corresponding to the position and passes the converted coordinates to the display control unit 31, and the display control unit 31 converts the received coordinate values into dot coordinates on the display surface of the B display unit and passes them to the display control unit 31. A display signal is output to the B display control section 31 so as to display the handwriting.

On the other hand, the stroke data storage unit 39 accumulates coordinate values sequentially received for character recognition, and the stroke data storage unit 39 uses the coordinate values to detect that the character input has moved to the input position of the next character, or The timer 21 monitors the input of coordinate values from the tablet, and when there is no input for a certain period of time (for example, 1 second), it determines that the input of one character has ended, and notifies the stroke data storage unit 39.
The coordinate value data held up to that point is passed to the recognition unit 20, and the accumulation of coordinate values for the next character is started.

The recognition unit 20 recognizes characters based on a predetermined logic from a group of coordinate values representing handwritten handwriting, determines a character code,
The character codes resulting from the recognition are sequentially stored in the character processing section 22. Further, since the character code is passed to the display control unit 31, the display control unit 31 causes the B display unit 38 to display the character specified by the character code instead of displaying the handwriting.

The character code stored in the character huffer unit 22 is passed to the calculation 829 by the keyboard interface 26 when a func code is notified to the character huffer unit 22 as described below by specifying the "send" function, for example. . Therefore, the computer 29 can process characters input by hand in the same way as input from a keyboard.

When the area determination unit 34 determines that it is the C area, the area determination unit 34 passes the coordinate values to the function determination unit 23 . The function determining unit 23 determines the function corresponding to the coordinate value from the received coordinate value according to the function definition given in advance, and sends the determined function to the control unit 24 or the key code generating unit 25 depending on the type of function. Notify function.

The control unit 24 processes a function that performs local control for this input processing, identifies character recognition control (for example, an instruction to cancel erroneously recognized characters and re-enter them, etc.),
Controls necessary control functions of the recognition unit 20 and the like. Further, the key code generation unit 25 generates a key code representing the notified function according to the definition, and inputs it to the calculation 829 from the keyboard interface 26.

Figure 4 shows an example of the state of the B display when inputting the character ``1 hand from the BSI area'' by hand. This example shows a case where there are input positions for 5 characters, While inputting, (
b) is the state of each handwriting display at the time of completion of input, (C) is "hand"
The state in which recognition is confirmed, the display is replaced with the internal character pattern, and the next "calligraphy" is input, (d), (
e) is a state in which the input of "calligraphy" has been completed, and the character pattern of "calligraphy" has been recognized and displayed, and here, for example, by inputting the "send" function, these two characters are transferred to the computer 29.
When an input is made to , the display returns to the non-input state shown in ).

The display data to be displayed on the A display section is output from the conventional computer 29 to the display control section 33 via the RGB interface 32, and is displayed according to the display signal output from the display control section 33 accordingly.

In the above configuration, character recognition of handwritten input is performed independently of the computer, but if the connected computer has a relatively advanced input/output processing function (for example, if there is an input/output processing front processor). Alternatively, the configuration may be such that recognition processing and the like are performed on the computer side.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, in an input/output device having a handwriting input function, the handwriting input function is partially added to an input/output device that uses an input/display integrated tablet for display and input. This has a significant industrial effect in that existing application programs do not need to be changed.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of the present invention, FIG. 2 is a block diagram showing an embodiment of the present invention, FIG. 3 is an explanatory diagram of a configuration example of the display section, and FIG. 4 is an explanation of a display example of the B display section. FIG. 5 is a diagram showing an example of function display. In the figure, 1 and 30 are display units, 2 and 34 are area determination units, 3 is a recognition processing unit, 4 is an input/output processing unit, 5 and 40 are flat displays, 6 is an input tablet, and 7 is a first input part , 8 is a second input section, 9 is an instruction means, 10 is a second flat display, 11 is a display processing section, 20 is a recognition section, 21 is a timer, 22 is a character buffer section, 23 is a function judgment section, 24 25 is a control unit, 25 is a key code generation unit,
26 is a keyboard interface, 29 is a calculator, 31 and 33 are display control units, 3
2 is an RGB interface, 35 and 37 are coordinate conversion units, 36 is a mouse interface, 38 is a B display unit, 39 is a stroke data storage unit, 41 and 43 are input possible areas, 42 is a stylus pen,
44 is the B area and the B display section; 45 is the C area; 1st block diagram showing the configuration of the present invention; 1st V block diagram showing the embodiment of the present invention; 2(b); al (-1) +bl (e tel lfl Figure 4: Illustration of an example of display on the B display section. Figure 5: Illustration showing an example of function display.

Claims (1)

[Claims] 1. It has a display section, an area determination section, a recognition processing section, and an input/output processing section, the display section is configured integrally with a flat display and an input tablet, and the flat display is configured to perform the input/output processing. The input tablet is configured to display an output from the processing unit, and is configured to have one plane and generate an input signal indicating the coordinates of the indicated position on the plane when instructed by a predetermined instruction means. , the plane has a first input part that overlaps with the display surface of the flat display, and a second input part that is outside the display surface, and the area determination section is configured to receive the input from the input tablet. identifying a signal and transmitting the input signal to the input/output processing section in the case of input from a first input section and to the recognition processing section in case of input from a second input section; The handwriting input processing method is characterized in that the recognition processing section is configured to take the input signal as input, execute a predetermined character recognition process, and notify the input/output processing section of the result of the execution. . 2. A second flat display is superimposed on the second input portion of the input tablet, and the recognition processing section has a display processing section, and the display processing section transfers information to the recognition processing section. 2. The second flat display is configured to display a predetermined figure representing a display position of the second flat display corresponding to the coordinate position on the basis of the coordinate position indicated by the input signal. The handwritten input processing method described in 1.