JPH04304585A - Device for recognizing handwritten character - Google Patents

Abstract

PURPOSE:To improve a recognition rate and to make an entry format free by recognizing the end of a character even if the character is written by any size in any position on a tablet, CONSTITUTION:A pen 5 is provided with a first switch 6 which outputs a first signal expressing under writing on the tablet 1 and with the second switch 7 which outputs the second signal expressing the writing termination of one character by an operation. A recognition control part 4 processes the character recognition of coordinate data from the tablet 1 signal-converted by a signal converting circuit 2 when the first signal stops and the second signal is inputted. A display equipment 3 displays the recognized character.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handwritten character recognition device for recognizing handwritten characters written on a tablet.

0002

[Prior Art] In a conventional handwritten character recognition device,
In order to recognize the breaks between each character, a system was adopted in which a character frame was provided on the tablet for writing, and each character frame was recognized as a separate character.

FIG. 2 is a block diagram of an example of a conventional handwritten character recognition device. In FIG. 2, 11 is a tablet;
12 is a signal conversion circuit for inputting coordinate data on the tablet, 13 is a display for displaying recognition results, 14 is a recognition control unit, 15 is a pen for writing, 16 is a switch indicating that writing is in progress, 18 is a switch on the tablet This is a character frame data storage circuit that stores character frame data representing character frame positions.

In the conventional example, when a character is written on the tablet 11, the recognition control unit 4 receives a signal from the switch 16 and the position data of the character output from the signal conversion circuit 12, thereby indicating that writing has started. While recognizing the character, the position data of the character is compared with the contents of the character frame data storage circuit 8,
Recognition processing is performed to separate characters when the character frame changes.

[0005]

[Problems to be Solved by the Invention] In the conventional handwritten character recognition device described above, the character frame in which to write must be determined in advance, and the character size and layout must be determined before writing, which makes handling cumbersome. There was a drawback.

[0006]

[Means for Solving the Problems] The handwritten character recognition device of the present invention includes a first switch that outputs a first signal indicating that writing is in progress on a doublet, and a second switch that outputs a first signal indicating that writing is in progress on a doublet, and a second switch that outputs a first signal that indicates the end of writing one character. a pen equipped with a second switch that outputs a signal; and characters of coordinate data from the doublet whose signal is converted by a signal conversion circuit when the first signal stops and the second signal is input. and a recognition control unit that performs recognition processing.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be explained with reference to the drawings. FIG. 1 is a block diagram of a handwritten character recognition device according to an embodiment of the present invention.

The pen 5 has a first switch 6 which outputs a first signal indicating that writing is in progress on the tablet 1, and a second switch 6 which, when operated, outputs a second signal indicating the end of writing one character. switch 7. When the first signal is stopped and the second signal is input, the recognition control unit 4 causes the signal conversion circuit 2 to perform character recognition processing on the coordinate data from the tablet 1 that has been converted into a signal. The display 3 displays the recognized characters.

Next, the operation will be explained. When a character is written on the tablet 1, the recognition control unit 4 receives the signal from the first switch 6 and the position data of the character output from the signal conversion circuit 2, and recognize that it has started.

The scribe uses the second switch 7 to notify the recognition control unit 4 of the completion of writing one character.

When the recognition control section 4 receives the signal from the second switch 7, it performs character recognition processing. Here, the first and second switches 6 and 7 output a signal indicating that writing is in progress from the switch during normal writing, and when writing is finished, a signal indicating the end of writing is output by strongly pressing the pen. There is a method of using a pressure sensitive switch as the switch 7.

0012

[Effects of the Invention] As explained above, according to the present invention,
This has the advantage of improving the recognition rate and freeing up the writing format, since the boundaries between characters can be recognized no matter where and how large they are written on the tablet.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a handwritten character recognition device according to an embodiment of the present invention.

FIG. 2 is a block diagram of an example of a conventional handwritten character recognition device.

[Explanation of symbols]

1 Tablet 2 Signal conversion circuit ３　　　　Display device 4 Recognition control section 5 Pen 6 First switch 7 Second switch

Claims (1)

[Claims] Claim 1: A first switch that outputs a first signal indicating that writing is in progress on the doublet, and a second switch that outputs a second signal that indicates the end of writing one character when operated. when the first signal stops and the second signal stops.
1. A handwritten character recognition device comprising: a recognition control unit that performs character recognition processing on coordinate data from the doublet whose signal is converted by a signal conversion circuit when the signal is input.