KR101161354B1 - Method for improving recognition of cursive and input device using the same - Google Patents

Abstract

The present invention relates to a method for improving handwriting recognition and an input tool using the same. The method for improving handwriting recognition according to the present invention includes: a first step of selecting a character mode to be input through predetermined selection means provided on the handwriting input tool; Generating and receiving an electrical signal according to the selection; Converting a text input editor into a corresponding mode according to the received signal; And a fourth step of outputting an input character under the converted mode.

In addition, the handwriting input tool for improving handwriting recognition according to the present invention includes a mode selection unit for selecting a text mode to be input according to a user's selection; A signal transmitter for generating an electrical signal according to the selection of the mode selector; And a handwriting input unit which inputs a handwriting under the mode selected by the mode selection unit.

Tablet PC, IME, Cursive Input, Mode Selector, Signal Sender, Cursive Input

Description

METHOOD FOR IMPROVING RECOGNITION OF CURSIVE AND INPUT DEVICE USING THE SAME}

1A is a diagram illustrating an input device including a handwriting input tool and a display device.

1B is a diagram illustrating a configuration of a tablet PC including a handwriting input tool and a display device.

2A is a diagram illustrating an example of inputting to a display device using a conventional handwriting input tool.

FIG. 2B is a diagram illustrating an example in which the input values displayed in FIG. 2A are recognized and output differently.

2C is a diagram illustrating a text mode selection window of a conventional text input editor.

3A and 3B illustrate front and plan views of a handwriting input tool according to an embodiment of the present invention.

4 is a diagram illustrating a front surface of a handwriting input tool according to another embodiment of the present invention.

5 is a view showing the configuration of a handwriting recognition enhancement system including a handwriting input tool and a display device according to the present invention.

6 is a view showing a method for improving handwriting recognition according to the present invention.

7 is a diagram illustrating an embodiment of a method of improving handwriting recognition according to the present invention.

* Description of the main parts of the drawings *

10: Cursive input tool 20: Shield plate

30: adhesive 40: sensor printed circuit board

50: liquid crystal display 51: Hangul input window

52: foreign language input window 53: number input window

54: Special Character Input Window 60: Glass

300, 300a, 300b: Cursive Input Tool

310: Hangul mode selection unit 320: Foreign language mode selection unit

330: number mode selection unit 340: special character mode selection unit

510: mode selector 520: signal transmitter

530: handwriting input unit 600: display device

610: signal receiver 620: converter

630: input value recognition unit 640: input value search unit

650: output unit

The present invention relates to a method for improving handwriting recognition and an input tool using the same, and more particularly, a method for improving handwriting recognition that can increase an input recognition rate by converting a character input mode by simple manipulation of a handwriting input tool, and an input tool using the same. It is about.

Recently, digital devices, which directly input information by a user using an input tool instead of a keyboard or a mouse, have been widely used. For example, a PDA or a tablet PC, and the like, which are pen-type devices having a thin liquid crystal display, are illustrated in FIGS. 1A and 1B, which include a handwriting input tool and a display device. It is a figure which shows an input device, and FIG. 1B is a figure which shows the structure of the tablet PC containing a handwriting input tool and a display device as an example.

Taking a tablet PC as an example, the biggest feature of such a tablet PC is that the LCD itself is a low-power, low-heating CPU, a motherboard, a hard disk, and so on as an independent PC. Another feature of the Tablet PC is the handwriting recognition function, which has a built-in digitizer (a device that converts analog data to digital) under the LCD, such as a PDA, and automatically recognizes when you write on the screen with a digital pen. The digital pen, also known as a stylus, is a term commonly used to refer to tools used to create data on handheld computers that were first used on workstations in the graphics field but recently accept handwritten input. have.

FIG. 1A illustrates an operation of directly inputting a digital pen to a liquid crystal screen. The liquid crystal below recognizes a character to be input by detecting a position of the digital pen as an electrical signal difference. Looking at the configuration of a tablet PC as a representative device having such a recognition method with reference to Figure 1b, it prevents a user from inputting a handwriting like a pen 10, the electrical signal from the writing input tool 10 attenuated A shield plate 20, an adhesive 30 connecting the sensor printed circuit board 40 and the shield plate 20, and an electrical signal from the writing input tool 10. It can be seen that the sensor is made of a printed circuit board 40, a liquid crystal display device 50 for displaying information, and a glass 60 for protecting the liquid crystal display device 50.

FIG. 2A is a diagram illustrating an example of inputting a display device using a conventional handwriting input tool, and FIG. 2B is a diagram illustrating an example of recognizing and outputting an input value displayed in FIG. 2A.

When a digital pen is input to a handwriting input panel by a general PDA or tablet PC, the existing digital pen does not have a function for converting a text input mode, so it is possible to distinguish Korean / English / numeric / special symbols for the recognized input value. This method finds characters with similar shapes from a database in a handwriting input panel program and outputs input values to a program to be input. By the way, the character input from the digital pen is input to the handwriting input panel, and the recognition rate similar to the recognized input value is not found in the database without distinguishing between Korean, English, numbers, and special symbols. That is, when English O is input to the handwriting input panel, the number 0 is recognized or the lower case l is input, but there is a problem in that it is recognized as the number 1 or the capital letter I. (The figure on the left in FIG. 2B is the case where it is recognized as ols in English and the figure on the right shows that it is recognized as the Arabic numeral 015.)

2C is a diagram illustrating a text mode selection window of a conventional text input editor. The text mode selection window of the text input editor is displayed in four types, which are illustrated by four windows of a Korean input window 51, a foreign language input window 52, a numeric input window 53, and a special character input window 54. have. Such a text input editor is called an input method editor (IME) program. When a user clicks with a digital pen, the text input editor recognizes the clicked value and converts it into one of Korean, English, numbers and special symbols. However, when the IME conversion program is installed, a small IME selection window as shown in FIG. 2C appears and clicks with a digital pen. The window is too small to select using the digital pen, and the IME selection window is displayed by other programs when executing various programs. There is a problem that can be masked.

The present invention has been made to solve the above problems, the user can increase the recognition rate for the input by inputting the character of the mode in the state that is converted to the character mode to be input through a simple operation of the handwriting input tool which is a digital pen The present invention provides a method for improving handwriting recognition and an input tool using the same.

The objects of the present invention are not limited to the above-mentioned objects, and other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a method of improving handwriting recognition, comprising: a first step of selecting a text mode to be input through predetermined selection means provided on a handwriting input tool; Generating and receiving an electrical signal according to the selection; Converting a text input editor into a corresponding mode according to the received signal; And a fourth step of outputting an input character under the converted mode.

In addition, a handwriting input tool for improving handwriting recognition according to the present invention for achieving the above object includes a mode selection unit for selecting a text mode to be input according to a user's selection; A signal transmitter for generating an electrical signal according to the selection of the mode selector; And a handwriting input unit which inputs a handwriting under the mode selected by the mode selection unit.

In addition, the display device for improving the handwriting recognition according to the present invention for achieving the above object, the signal receiving unit for receiving a signal transmitted from the signal transmitter of the handwriting input tool; A converter for converting a text input editor into a corresponding mode according to the signal reception of the signal receiver; And a character output unit configured to output a character input under the mode converted by the conversion unit.

In addition, the system for improving handwriting recognition according to the present invention for achieving the above object includes the handwriting input tool and the display device.

Specific details of other embodiments are included in the detailed description and the drawings. Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3A and 3B illustrate front and plan views of a handwriting input tool according to an embodiment of the present invention, and FIG. 4 illustrates a front view of the handwriting input tool according to another embodiment of the present invention. Is a diagram illustrating a configuration of a handwriting recognition enhancement system including a handwriting input tool and a display device according to the present invention.

First, referring to FIG. 5, the handwriting input tool 300 includes a mode selection unit 510, a signal transmitter 520, and a handwriting input unit 530.

The mode selector 510 serves to select a text mode to be input according to a user's selection. For example, the mode selector 510 may be used to input Korean characters among Korean / foreign language / number / special characters. By selecting the Hangul mode, the signal transmitter 520 to be described later is to generate an electrical signal for the Hangul mode.

The signal transmitter 520 serves to generate an electrical signal according to the selection of the mode selector 510. For example, the signal transmitter 520 selects a Hangul mode and transmits an electrical signal for the Hangul mode. When the signal is transmitted, the signal receiver 610 of the display device 600, which will be described later, detects the difference between these electrical signals.

The cursive input unit 530 directly inputs cursive under the mode selected by the mode selector 510.

However, two embodiments of the mode selection method of the mode selection unit 510 are shown in the present invention.

The first embodiment will be described with reference to FIGS. 3A and 3B. First, the Korean mode selection unit 310 and the foreign language mode selection unit 320 are shown in FIG. 3A. In FIG. 3B, the handwriting input tool 300a is viewed from above. In FIG. 3B, the number mode selection unit 330 and the special character mode selection unit 340 are shown. ) Is also appearing. By the way, it can be seen that the mode selection unit 510 is provided around the handwriting input tool 300a and implemented in the form of a number of buttons corresponding to the number of text input modes. That is, as shown in Figure 3a, a button corresponding to each mode is provided around the body of the handwriting input tool 300a so that the user presses a button corresponding to the mode of the character to be input as if the button of the ballpoint pen is pressed. You can enter characters after switching. 3A shows a state in which the Hangul mode is selected.

The second embodiment will be described with reference to FIG. 4. As shown in FIG. 4, the mode selection unit 510 includes a rotating unit capable of rotating one end of the writing input tool 300b in a discontinuous step, unlike the first embodiment, while the rotating unit discontinuously rotates. The character input mode is switched at each step. That is, the left picture of FIG. 4 shows a foreign language (eg, English) mode 320 selected, and the right picture shows a Hangul mode 310 selected.

On the other hand, the handwriting input tool 300 is elongated in both directions and becomes thinner toward one end, in general, the end of the portion touching the touch screen is tapered. In the embodiment of the present invention, the type of the character mode may be set by the user. Generally, four types of the Hangul mode, the foreign language mode, the numeric mode, and the special character mode may be set, but not limited to the four modes. You can also extend the number of. In addition, the foreign language mode may be any of several foreign languages such as English, Japanese, French, Chinese, etc., but it is generally set to the English mode.

Referring to FIG. 5 again, referring to the configuration of the display device 600 that outputs the text input by the handwriting input tool 300, the signal receiver 610, the converter 620, and the input value recognizer 630 may be described. , An input value retrieval unit 640 and an output unit 650.

The signal receiver 610 receives an electrical signal transmitted from the signal transmitter 520 of the handwriting input tool 300.

The converting unit 620 converts the text input editor into a corresponding mode according to the signal reception of the signal receiving unit 610. If the signal is an electrical signal corresponding to a special character input mode, for example, the converting unit 620. Converts to the mode corresponding to the special character input mode.

The input value recognizing unit 630 recognizes a writing input by a user under a mode converted by the conversion unit 620.

The input value retrieval unit 640 searches for a character in a form most similar to the handwritten character recognized by the input value recognizing unit 630 in the database in the text input editor.

The text output unit 650 outputs the text input by the handwriting input unit 530 under the mode converted by the conversion unit 620. Specifically, the text output unit 650 is the most searched by the input value search unit 640. It serves to display similar characters.

6 is a view showing a method for improving handwriting recognition according to the present invention.

First, the mode selector 510 selects a text mode to be input by the handwriting input tool 300 (S602). At this time, there are two embodiments of a mode selection method. As described above, the first embodiment is a mode to be input by pressing a button corresponding to the text mode among a plurality of buttons provided in the handwriting input tool 300. How to choose. Another embodiment is a method of selecting a mode to be input by discontinuously rotating one end of the handwriting input tool 300. Since these two embodiments have been described above with reference to FIGS. 3A, 3B, and 4, the descriptions thereof will be omitted.

Meanwhile, the signal transmitter 520 of the handwriting input tool 300 generates an electrical signal corresponding to the selected text mode, and the signal receiver 610 of the display device 600 receives the signal (S604). .

The conversion unit 620 converts the text input editor to the corresponding mode according to the received signal (S606).

The handwriting is input by the handwriting input unit 530 in the converted mode (S608), and the input value recognition unit 630 recognizes the input handwriting (S610). In addition, the input value search unit 640 searches for a character having a form most similar to a character corresponding to the recognized handwritten object in a database in the text input editor (S612), and the output unit 650 performs the input value. The most similar character searched by the search unit 640 is output (S614).

That is, for example, when the foreign language (English) mode is selected and English O is written, a form similar to the letter input by the user is outputted among the number 0 and the English alphabet O, but in the embodiment of the present invention, the input is already performed. Since the desired character mode is converted to English, the English alphabet O that the user wants to input is correctly output. Such a process is illustrated in FIG. 7, which is a diagram illustrating, in chronological order, a flow of actually implementing the method of improving handwriting recognition according to the present invention.

First, when the handwriting input tool 300 selects a foreign language (English) mode by a button method or a rotation method and inputs a desired input by handwriting (S702), it will be shown in the form of a handwriting in an input window as shown in S704 ( S704). Then, if a character in the form most similar to the input cursive character is searched in the database in the text input editor under the English mode, the English alphabets o, l, and s are output in sequence (S706). If you want to enter another character in another mode, after pressing another button of the handwriting input tool 300, further input the character corresponding to the mode. When the input of the desired handwriting is finished, press the input button on the bottom right of the input window (S708). Then, the alphabet ols are sequentially output to the program window (S710).

Meanwhile, the character mode in the above-described handwriting recognition improving method is one of a Hangul mode, a foreign language mode, a numeric mode, and a special character mode. The foreign language mode is a mode determined by a user's selection and is generally an English mode.

In addition, the present invention will be apparent to those skilled in the art that the scope of the right extends not only to the handwriting recognition improving method and the input tool using the same, but also to the handwriting recognition improving system including the handwriting input tool 300 and the display device 600.

That is, the handwriting input tool 300 including the mode selector 510, the signal transmitter 520, and the handwriting inputter 530, the signal receiver 610, the converter 620, and the input value recognizer 630. The range of rights also extends to a handwriting recognition enhancement system including a display device 600 including an input value retrieval unit 640 and a character output unit 650.

Although embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains have various permutations, modifications, and modifications without departing from the spirit or essential features of the present invention. It is to be understood that modifications may be made and other embodiments may be embodied. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

According to the present invention, the character input mode of the text input editor (IME program) can be easily converted as if the color of the color ballpoint pen is selected. Through this, the inputted character value is searched for only the characters under the selected mode and outputted. Therefore, the recognition rate can be increased and the accuracy can be increased.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

Claims (14)

A first step of selecting a text mode to be input through predetermined selection means provided on the handwriting input tool; Generating and receiving an electrical signal according to the selection; Converting a text input editor into a corresponding mode according to the received signal; And And a fourth step of outputting an input character under the converted mode. The method of claim 1, wherein the first step, And selecting a mode to be input by pressing a button corresponding to the character mode among a plurality of buttons provided in the handwriting input tool. The method of claim 1, wherein the first step, And a step of selecting a mode to be input by discontinuously rotating one end of the handwriting input tool. The method of claim 1, wherein the fourth step, A fourth step (a) of recognizing the handwritten writing under the converted mode; A fourth step (b) of searching for a character corresponding to the recognized handwriting in the text input editor; And And a fourth step (c) of outputting the retrieved character. The text mode according to any one of claims 1 to 4, wherein: And one of a Hangul mode, a foreign language mode, a numeric mode, and a special character mode, wherein the foreign language mode is determined by a user's selection. A mode selection unit for selecting a text mode to be input according to a user's selection; A signal transmitter for generating an electrical signal according to the selection of the mode selector; And And a handwriting input unit for inputting a handwriting under a mode selected by the mode selection unit. The method of claim 6, wherein the mode selection unit, And a number of buttons provided around the handwriting input tool and corresponding to the number of modes. The method of claim 6, wherein the mode selection unit, And a rotating unit capable of rotating one end of the handwriting input tool in discrete steps, each step corresponding to one mode. The method of claim 6, wherein the handwriting input tool, Cursive writing tools that extend in both directions and taper toward one end. The text mode according to any one of claims 6 to 9, wherein A handwriting input tool, which is one of a Korean mode, a foreign language mode, a numeric mode, and a special character mode, wherein the foreign language mode is determined by a user's selection. A signal receiver configured to receive a signal transmitted from a signal transmitter of the cursive input tool; A converter for converting a text input editor into a corresponding mode according to the signal reception of the signal receiver; And And a character output unit configured to output a character input under the mode converted by the conversion unit. The method of claim 11, wherein An input value recognizing unit recognizing a handwriting input under the mode converted by the converting unit; And And an input value retrieving unit for retrieving a character corresponding to the handwritten recognized by the input value recognizing unit in the text input editor. A mode selector for selecting a text mode to be input according to a user's selection, a signal transmitter for generating an electrical signal according to the selection of the mode selector, and a handwriting input unit for inputting handwriting under a mode selected by the mode selector A handwriting input tool; And A signal receiving unit for receiving a signal transmitted from the signal transmitting unit of the handwriting input tool, a converting unit for converting a text input editor into a corresponding mode according to the signal reception of the signal receiving unit, and characters input under the mode converted by the converting unit Handwriting recognition enhancement system comprising a display device including a character output unit for outputting the. The display device of claim 13, wherein the display device comprises: The apparatus may further include an input value recognizing unit recognizing the handwriting inputted under the mode converted by the conversion unit, and an input value retrieval unit retrieving a character corresponding to the handwriting recognized by the input value recognizing unit in the text input editor. Cursive Recognition Enhancement System.

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