JP3350135B2 - Handwriting input device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handwritten input device capable of recognizing drawn image data such as figures and line drawings, still image data, and handwritten characters in designated positions.

[0002]

2. Description of the Related Art In recent years, various image communication terminals having a function of transmitting moving images and still images have been developed in addition to a voice transmission function as a normal telephone, and a handwriting input having a handwritten character recognition as an input device has been developed. Devices and handwriting input devices such as pen input personal computers for portability have been developed.

Hereinafter, a conventional handwriting input device will be described with reference to the drawings. FIG. 6 is a functional block diagram of a conventional handwriting input device. Reference numeral 1 denotes a case where a user inputs a drawn image such as a figure or a line drawing or a key switch, detects a designated position, and displays a screen of a terminal 7. The grid 2 performs similar display, converts the detected position information into coordinate data, determines whether the converted coordinate data is key switch information or depiction image data, and notifies each block of data information. The interface unit 3 is a key switch control unit that controls the system and the terminal according to the key switch information specified by the user. The control unit 4 controls the display of drawn image data such as figures and line drawings input by the user. A drawing image data control unit that performs character recognition based on the data in the handwritten character recognition frame when character recognition is performed, and 6 transmits and receives data to and from a terminal 7 such as a video conference system and a personal computer. A communication interface unit for performing, 8 is a handwriting input device consisting of 4 and 6 to not above units 1.

An example of a conventional handwriting input device configured as shown in FIG. 6 for recognizing handwritten characters will be described below. The user inputs drawing image data such as a figure or a line drawing to the grid 1 so that the coordinate input interface unit 2 determines the drawing image data and converts the coordinate data. The display of an image is controlled and displayed on the terminal 7 and the grid 1 via the communication interface unit 6.

When the user wishes to perform handwritten character recognition, the user presses a key switch (not shown) on the grid 1 for performing character recognition, and the coordinate input interface unit 2 determines that the key switch information is present. Then, the key switch control unit 3 determines whether or not to perform handwritten character recognition, and notifies the terminal 7 and the grid 1 via the drawn image data control unit 4 and the communication interface unit 6. Thereafter, when the user inputs the coordinate data to the grid 1 on which the frame for handwritten character recognition is displayed, the coordinate input interface unit 2 converts the coordinate data, and the drawn image data control unit 4 converts the coordinate data. The recognition is performed, and the recognized character information is notified to the terminal 7 and the grid 1 via the communication interface unit 6.

[0006]

However, in the above-described conventional handwriting input device, when it is desired to perform handwritten character recognition after displaying drawn image data such as figures or line drawings or still image data, a frame for handwritten character recognition is required. Is fixed, even if you want to perform handwritten character recognition with reference to previously input drawing image data such as figures and line drawings and still image data, the handwritten character recognition There was a problem that it was difficult to input characters for character recognition.

An object of the present invention is to solve the above-mentioned conventional problems and to provide a handwriting input device which is easy to use when performing handwritten character recognition.

[0008]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems and achieves the object by adding graphics and
Draw image data such as line drawings, still image data, and
Handwriting input device that can recognize handwritten characters
Control the display of drawn image data such as figures and line drawings.
Your, and Bei and drawing image data control section for recognizing characters in a handwritten character in the recognition frame when handwriting recognition has Tsu line
When handwritten character recognition is performed, drawing of figures, line drawings, etc.
It is characterized in that a portion with the least image input is automatically determined, and a display position of a frame for handwritten character recognition is determined .

Further, a key switch data designated by a user is provided.
And judge whether or not to perform handwritten character recognition.
Come, Keith to detect the display position of the frame for handwriting recognition
A switch control unit is provided .

[0010]

According to the present invention, even if it is desired to perform handwritten character recognition by referring to previously drawn image data such as figures or line drawings or still image data, the frame for handwritten character recognition is not hindered. The display position can be set freely.

[0011]

FIG. 1 is a functional block diagram of a handwriting input device according to a first embodiment of the present invention, and 5 is a character recognition frame for controlling a display position of a frame for handwritten character recognition in accordance with a designated position. It is a display control unit. In addition, the same functional blocks as those in FIG. 6 are denoted by the same reference numerals, and description thereof will be omitted.

FIG. 2 shows a grid 1 of the handwriting input device of FIG.
It is an example of a key switch above.

FIG. 3 shows a grid 1 of the handwriting input device of FIG.
It is a display example displayed on the display device on the upper side or the display device on the terminal 7.

Next, the first embodiment of FIG. 1 will be described with reference to FIGS. 2 and 3 as an example in the case of recognizing handwritten characters. The user inputs drawn image data such as a figure or a line drawing to the grid 1 so that the coordinate input interface unit 2 determines the drawing image and converts the coordinate data. Is displayed on the terminal 7 and the grid 1 via the communication interface unit 6.

When the user wishes to perform handwritten character recognition with reference to previously input drawing image data such as figures and line drawings and still image data, the user performs character recognition on the grid 1 shown in FIG. Key switch (up / down / left / right)
By selecting and pressing a position that is not obstructed by the 1SW, the coordinate input interface unit 2 determines that the key switch information is present, and the key switch control unit 3 determines whether or not to perform character recognition. By grasping the display position of the frame and notifying the terminal 7 via the drawn image data control unit 4 and the character recognition frame display control unit 5 and the communication interface unit 6, the display device shown in FIG. It is displayed as exemplified in (b).

After that, the user inputs coordinate data into the grid 1 on which the frame for handwritten character recognition is displayed by referring to previously drawn image data such as figures and line drawings and still image data, thereby obtaining The coordinate input interface unit 2 converts the coordinate data, the drawn image data control unit 4 recognizes the handwritten character, and notifies the terminal 7 and the grid 1 of the recognized character information via the communication interface unit 6. You.

FIG. 4 is a functional block diagram of a handwriting input device according to a second embodiment of the present invention. FIG. 9 shows the data amount of previously drawn drawing image data such as figures and line drawings and still image data. This is a frame display position detection unit that calculates from the image display memory, determines the display position of the handwriting character recognition frame at the least number of locations, and notifies the character recognition frame display control unit 5 of the frame display position. In addition, the same functional blocks as those in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted.

FIG. 5 is a diagram showing detection positions in the image display memory of the handwriting input device of FIG.

Next, a second embodiment of FIG. 4 will be described below with reference to FIGS. 3 and 5, in which an example in which handwritten character recognition is performed. The user inputs drawing image data such as a figure or a line drawing to the grid 1 so that the coordinate input interface unit 2 determines the drawing image and converts the coordinate data. Is displayed on the terminal 7 and the grid 1 via the communication interface unit 6.

When the user wants to recognize handwritten characters with reference to previously input drawing image data such as figures and line drawings and still image data, the user must use a key switch for performing character recognition on the grid 1. By pressing (FIG. 2), the coordinate input interface unit 2 determines that the key switch information is obtained, and the key switch control unit 3 determines whether or not to perform character recognition. The display position detection unit 9 is notified. This frame display position detection unit 9
By comparing the amount of data in the four types of image display memories (1) to (4) shown in FIG. 5 and notifying the character recognition frame display control unit 5 of the location with the smallest amount of data, the communication interface unit (A) of FIG. 3 on the display device of the terminal 7 via
And (b).

After that, the user inputs coordinate data into the grid 1 on which the frame for handwritten character recognition is displayed by referring to previously drawn image data such as figures and line drawings and still image data. The coordinate input interface unit 2 converts the coordinate data, the drawn image data control unit 4 recognizes the handwritten character, and notifies the terminal 7 and the grid 1 of the recognized character information via the communication interface unit 6. You.

[0022]

As described above, the handwriting input device of the present invention does not interfere with handwritten character recognition even if it is desired to refer to previously drawn image data such as figures and line drawings and still image data. Since the display position of the frame for handwritten character recognition can be set freely or automatically so as not to become undesired, it is possible to provide an easy-to-use handwriting input device when performing handwritten character recognition.

[Brief description of the drawings]

FIG. 1 is a functional block diagram of a handwriting input device according to a first embodiment of the present invention.

FIG. 2 is an example of key switches on a grid of the handwriting input device of FIGS. 1 and 4;

FIG. 3 is a display example displayed on a display device on a grid or a display device on a terminal of the handwriting input device of FIGS. 1 and 4;

FIG. 4 is a functional block diagram of a handwriting input device according to a second embodiment of the present invention.

FIG. 5 is a diagram showing detection positions in an image display memory of the handwriting input device of FIG. 4;

FIG. 6 is a functional block diagram of a conventional handwriting input device.

[Explanation of symbols]

1 ... grid 2 ... coordinate input interface unit 3
... key switch control unit, 4 ... drawing image data control unit, 5
... Character recognition frame display control unit, 6 ... Communication interface unit, 7 ... Video conference system, terminal such as personal computer
8 Handwriting input device 9 Frame display position detection unit 1S
W: Character recognition key.

Claims (2)

(57) [Claims] 1. A graphic and graphic image data and still image data of the line drawing or the like, and a handwriting input device capable handwriting recognition at the specified position within the display of the drawing image data such as drawing type and line control, and when performing handwriting recognition and a drawing image data control section for recognizing characters in a handwritten character in the recognition frame, when performing handwriting recognition, FIG.
Automatically determines where the least input of drawing images such as shapes and line drawings
Sectional then, the handwriting input device and determines the display position of the frame for handwriting recognition. 2. Key switch data designated by a user.
Ri when performing determines whether or not to handwriting recognition, key switch for detecting the display position of the frame for handwriting recognition
The handwriting input device according to claim 1, further comprising a control unit .