KR100957059B1 - A method and system for processing character data written on a touch screen - Google Patents

Abstract

There is provided a character data processing system for processing a character input through a touch screen of an electronic device as character data capable of being stored and transmitted. Wherein the character data processing system comprises a stroke recognition module that identifies and identifies one or more strokes constituting the character and recognizes a start point and an end point of each identified stroke, A coordinate data buffer for storing coordinates extracted by the coordinate extraction module with respect to each stroke, and a coordinate data buffer for storing coordinates extracted from the coordinate data stored in the coordinate data buffer, A counting module for counting the number of points constituting each stroke; and a counting module for counting the number of points constituting each stroke stored in the coordinate data buffer, together with the count counted by the counting module, And a character data generation module for generating character data in which x-coordinates and y-coordinates of the y-coordinates are stored.

Character, signature, touch screen, electronic settlement, coordinate, representative point

Description

[0001] The present invention relates to a method and system for processing character data input through a touch screen,

The present invention relates to a system and method for processing a character such as a signature written by a user on a touch screen of an electronic device with data that can be transmitted and stored.

The widespread use of wired and wireless communication devices has broadened the range of use in various ways using voice communication, Internet access as well as data transmission.

In Korean Patent Application Laid-Open No. 10-2004-108234, when a customer desires to pay with a credit card, he / she inquires card information, inputs a signature on a touch screen of a handheld inquiry device capable of accessing a VAN server, Capturing, encrypting, and transmitting the encrypted data to the VAN server. According to the above document, it is difficult to manage the slip of a slip printed on a paper sheet. Therefore, in a place where a credit card is used as a main payment means such as a department store or a large discount store, It can be managed as data.

In addition, there is a problem in that it is difficult to judge whether the signature is actually the owner of the card, in the method of manually signing the paper output by the paper. However, when the signature image of the card owner is registered in advance in the VAN server, By comparing it with the image of the signature transmitted via the hands-free terminal.

However, as disclosed in the above document, when the signature data is transmitted and stored as an image, it takes a long time to transfer the signature data from the handheld inquirer to the VAN server because the amount of data to be processed is large, There is a high possibility of occurrence. In addition, in order to display image data of a signature on a terminal screen, an image processing module suitable for the format of the image must be embedded in the terminal. For example, if the image is stored in .jpg format, the terminal must have a program that can process the file stored in jpg format.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and the inventors of the present invention have found that a conventional method of storing characters input through a touch screen as an image file stores information on blank spaces other than characters as data The amount of data is increased. Accordingly, the present invention provides a character data processing system and method capable of remarkably reducing the amount of data to be transmitted and stored by extracting only the character portion written on the touch screen of the electronic device as coordinate data and not including the blank margin portion in the data And to provide the above objects.

It is another object of the present invention to provide a character data processing system and a processing method that enable character data to be displayed even in a terminal that does not have a program or a control module capable of processing a specific image format.

According to a first aspect of the present invention, there is provided a system for processing characters input through a touch screen of an electronic device as character data capable of being stored and transmitted. The character data processing system includes a stroke recognition module that identifies and identifies one or more strokes constituting a character and recognizes a start point and an end point of each of the identified strokes, A coordinate data buffer for storing coordinates extracted by the coordinate extraction module with respect to each stroke, and a coordinate data buffer for storing coordinates extracted from the coordinate data stored in the coordinate data buffer, For each of the strokes forming the character, a counting module for counting the number of points constituting each stroke stored in the coordinate data buffer together with the count counted by the counting module, Coordinate data, and y-coordinate data, and stores character data including the counted number and the coordinate data It includes character data generating module.

The character data sequentially stores the x-coordinate and the y-coordinate of the points constituting the stroke from the start point to the end point or from the end point to the start point for each stroke.

According to a second aspect of the present invention, there is provided a method of processing characters input through a touch screen of an electronic device as character data capable of being stored and transmitted. The character data processing method includes the steps of recognizing a start point of each of one or more strokes constituting a character, extracting an x coordinate and a y coordinate of the points constituting the stroke on the touch screen, Temporarily storing the extracted coordinates in a memory, recognizing an end point of the stroke, counting the number of points constituting the stroke from the temporarily stored coordinates, determining whether the character input is completed And arranging x and y coordinates of the points constituting each stroke together with the counted number for all the strokes constituting the character to determine that the counted number and the coordinates And generating character data including the data.

According to a third aspect of the present invention, there is provided a computer-readable recording medium recording a program operable to process characters input through a touch screen of an electronic device as character data capable of being stored and transmitted. Wherein the program identifies and identifies one or more strokes constituting a character and includes one or more codes for recognizing the start and end points of each identified stroke, one or more codes for extracting x-coordinates and y-coordinates, one or more codes for storing the extracted x-coordinates and y-coordinates in a coordinate data buffer for each stroke, One or more codes for counting the number of points constituting the stroke from the information stored in the stroke, and for each stroke constituting the character, the x-coordinate and the y-coordinate of the points constituting each stroke, together with the counted number And one or more coils for generating the character data including the counted number and the coordinate data by arranging the coordinates .

According to the present invention, the character input to the touch screen of the electronic device is processed as character data of a unique form, whereby the amount of data to be transmitted and stored can be significantly reduced.

Further, according to the present invention, even in a terminal in which a program capable of processing a specific image format or a control module is not installed, the character data processed by the present invention can be restored and displayed in a form almost identical to the original character have.

Hereinafter, a character data processing system and method of the present invention will be described in detail with reference to the accompanying drawings. To facilitate understanding of the present invention, the same reference numerals have been used, where appropriate, to designate identical or similar components in the several views.

Hereinafter, the term "electronic device" refers to a device which includes a touch screen and on which a user can input contents recorded using an electronic pen such as a stylus. Personal digital assistance (PDA) ), Hand-held credit card payment machines, portable telephones, and portable computers. The "character data processing system" of the present invention may be the electronic device itself, or it may be implemented in the form of software or hardware that can be installed in the electronic device.

The technical idea of the present invention is applicable to any application field in which electronic signatures can be used, such as electronic payment, electronic mail requiring security, and an authentication system. For example, FIG. 1 shows a conceptual block diagram of an electronic payment system using the present invention. It should be noted that the electronic device does not discriminate between the hardware and / or the software if the electronic device can be connected to the communication network 30 such as the PDA 10, the portable telephone 12, and the portable computer 14 so as to transmit and receive data. do. Hereinafter, an embodiment in which the character data processing system 100 of the present invention is implemented by a PDA will be mainly described.

When the user inputs the character "Kim" as his signature on the touch screen of the electronic device, the character data processing system 100 of the present invention extracts the coordinate points of the character and stores the coordinate data. The access point device 20 sequentially synchronizes communication with a plurality of electronic devices 10 and receives card information and signature data transmitted from the electronic device 10 and transmits them to the VAN server 40. [ The VAN server 40 transmits an approval number or the like to the access point apparatus 20 when approving the payment, and transmits an approval disapproval message to the access point apparatus 20 when the payment can not be approved. The access point device 20 transmits the approval result to the corresponding electronic device 10. The access point device 20 not only serves as a buffer for temporarily storing data in the transmission standby state in transmitting and receiving data to and from the electronic device 10 but also buffers the data temporarily in the process of transmitting and receiving data with the VAN server 40. [ It acts as a memory.

According to the present invention, the electronic device 10 extracts the x, y coordinate values of the input character, stores it as character data, and transmits the character data. Thus, the information on the margin portion is not included in the character data. According to the conventional method of storing characters inputted through the touch screen as image data, all the information about the blank portion displayed in white together with the character portion displayed in black on the screen are included in the image data. Accordingly, the amount of data increases. In the present invention, the information of the margin portion is not included in the character data, so that the amount of character data can be significantly reduced.

2 is a conceptual block diagram showing a first embodiment of a character data processing system according to the present invention. 2, the character data processing system 100 of the present invention includes a character input module 110, a stroke recognition module 120, a coordinate extraction module 130, a stroke coordinate storage module 140, A data buffer 150, a character data generation module 160, hardware 170, and software 180. The hardware 170 and the software 180 are required to perform basic operations such as allowing the electronic device 10 to send and receive data, and controlling the touch screen. In particular, as one of the software 180, a Draw function, which is installed in a PDA by default, performs a drawing operation of connecting line segments between predetermined coordinate points on the touch screen. The configuration and operation principle of the software and hardware are well known in the technical field of the present invention, and are not essential to the realization of the technical idea of the present invention, so the details thereof will be omitted.

The character input module 110 converts characters written by a user using the electronic pen into electric or electronic signals on a touch screen of the electronic device and receives them. The position of the electronic pen in contact with the touch screen is determined as follows. Generally, in the case of an electromagnetic type, a touch screen is connected with a grid-shaped conductor at intervals of 0.1 to 0.5 inch, and a coil is attached to the end of the electronic pen. When one of the grid and the coil is activated by the electromagnetic pulse as the electronic pen approaches the touch screen, the other senses the induced voltage or current. Next, scan the tablet conductors of the touch screen to find the cell closest to the tip of the stylus.

The stroke recognition module 120 identifies strokes constituting one character. In storing character data, the present invention identifies strokes constituting a character and stores coordinate data so as to be divided into the identified strokes. Therefore, it is necessary to distinguish and recognize the strokes constituting the character while the character is input by the character input module 110. [ To this end, the character input module 110 recognizes the point of contact of the electronic pen on the touch screen as the start point of one stroke, and recognizes the point of the electronic pen as the end point of the stroke. Whether one stroke is continued or another stroke is started can be judged by the time interval in which the induced voltage or current is sensed on the touch screen or the electronic pen. For example, if an induction voltage or induction current is detected again after a lapse of a time longer than a predetermined time interval after the induction current or voltage between the electronic pen and the touch screen is sensed, it is recognized that a new stroke has started. In this case, if the time interval until the induction voltage or the induction current is again detected is longer than a predetermined time, it is recognized that the input is finished and the generation of the final character data may be started. Alternatively, it is also possible to recognize that the character input has not been completed until a specific event notifying that the character input has been completed. For example, an icon indicated by "OK" or "END" is created in one corner of the character input screen of the touch screen, and when the user takes this icon with the electronic pen, the character input is considered to be completed.

The coordinate extraction module 130 extracts the x and y coordinates of the points constituting the stroke with respect to each stroke. That is, the coordinates of each point at which the electronic pen touches the touch screen is extracted. The coordinate may be defined as a x-axis in the horizontal direction and a y-axis in the vertical direction, with a certain corner of the touch screen as a reference point. As described above, in the case of the touch screen using the electromagnetic method, the cell closest to the tip of the electronic pen can be found by scanning the tablet conductors of the touch screen. The position information of the cell is recognized as the coordinates of the points constituting the stroke .

The coordinate storage module 140 stores the coordinates of the points extracted by the coordinate extraction module 130 in the coordinate data buffer 150 for each stroke. When the stroke recognition module 120 recognizes that a stroke is completed, the stroke coordinate storage module 140 stores the coordinates of the next stroke in the coordinate data buffer 150.

If an event is detected in which no induction current or induced voltage is detected between the electronic pen and the touch screen for a predetermined period of time or that the character input is completed, the stroke recognition module 120 determines that the character input to the character data generation module 160 is completed It informs. The character data generation module 160 stores the x, y coordinates stored in the coordinate data buffer 150 in the memory. In particular, the character data generation module 160 counts the number of points constituting each stroke from the data stored in the coordinate data buffer 150, and stores the number of counted points in front of the coordinate data of each stroke . It is preferable that the coordinates of the points included in each stroke are sequentially stored according to the writing order from the starting point to the end point. Alternatively, it is also possible to sequentially store the coordinates of the points from the end point to the starting point.

The number of points constituting each stroke constituting the character data, the x-coordinate and the y-coordinate of each point can be stored or transmitted as a string, that is, a character string. Alternatively, it is possible to generate data for storing them in a 2-byte short form, respectively. In the latter case, it is particularly desirable to reduce the amount of data.

FIG. 3 shows an example of character data stored by the character data generation module 160 of FIG. As shown in FIG. 3, the number of coordinate points constituting each stroke and the coordinate points are sequentially stored. Here, N1, N2, and N3 represent the number of coordinate points constituting three different strokes, xi (i is an integer) represents the x coordinate of each point constituting the i-th stroke, and yi represents y Coordinate. In other words, in the example of FIG. 3, the first stroke is made up of a total of N1 points, and the coordinates of these points are (xj, yj) (j = 1, ..., N1). N1, N2, N3 ... are identification marks for distinguishing the start and end points of each stroke, that is, for distinguishing each stroke.

The data types of N1, N2, and N3 and the data types of x and y coordinates forming a single point are preferably short. In other words, the data representing the number of points forming each stroke is 2 bytes, and the x and y coordinates of one point occupying 2 bytes each. In this case, the space required for storing information of one point is 4 bytes do.

As described above, coordinate data of each stroke may be stored in order from the end point to the start point.

The signature data stored in the form of bytes is converted into an object and sent to the access point device 20 as shown in FIG. 1 and sent to the VAN server 40 via the communication network 30. The VAN server 40 can compare the transmitted coordinate data with the already stored signature data so as to determine whether the signer is an actual cardholder or the like to approve the use of the card.

On the other hand, the signature can be displayed again using this signature data. That is, since the start point and the end point of each stroke can be identified through the data structure shown in FIG. 3, if a segment is drawn from the start point to the end point for each stroke, it can be displayed in almost the same form as the originally written signature.

As described above, unlike the conventional method of storing characters in a picture file, by dividing a character into strokes and storing the x and y coordinates of the points constituting the stroke for each separate stroke, I can not. Thus, the space required for storing character data can be significantly reduced. In addition, even when characters are displayed on the screen using stored data, since the start point and end point of each stroke can be clearly identified from the configuration of character data, by connecting the coordinate points from the start point to the end point, You can display characters in much the same way as you type them.

In addition, when a character is stored in a picture file, a module or a program capable of processing a specific picture file is required to display it. However, in the case of using the coordinate data generated by the present invention, Since it is possible to draw using the built-in draw function, compatibility is very high and the convenience of the user can be achieved without inconveniencing the necessity of installing the necessary program on the terminal.

Table 1 below shows the case where the word "Choi" is input to a touch screen having a resolution of 105 * 79 and stored as an image file in the form of jpg, gif, bmp (monochrome bitmap) If the data is stored as a comparison of the amount of data.

Storage format Amount of data (in bytes) jpg 1457 gif 1187 bmp 1329 Coordinate data 480

As shown in Table 1, when the coordinate data is stored according to the present invention, the amount of data is significantly reduced. This is because, when stored in a picture file, information on an empty space is included, while coordinate data includes only valid information as characters. As described above, since the amount of data is greatly reduced, the memory space necessary for data storage is saved and the transmission of character data is accelerated.

As another embodiment of the coordinate data format, it is also possible to sequentially store the number of strokes constituting characters, the number of points constituting each stroke, and the x and y coordinates of the points constituting each stroke. In this case, two bytes are required in comparison with the form shown in Fig. In addition, there are various methods for generating character data composed of the number of points included in the stroke and the x, y coordinate data of the point. In any method, Can be significantly reduced.

4 is a flowchart showing a first embodiment of a character data processing method according to the present invention. When the electronic device 10 is set in a mode in which characters can be input (S400), the character input is ready (S402). When an induction current or induced voltage is detected between the electronic pen and the touch screen, it is recognized as a start point of the stroke (S404). Subsequently, the coordinates of the stroke drawn on the touch screen are extracted (S406). For example, the tablet conductors of the touch screen are scanned to extract the position information of the cell closest to the end of the electronic pen.

After recognizing the start point, since one stroke is being written while the electronic pen is in contact with the touch screen (S408: NO), the coordinates are extracted continuously (S406). Whether or not the electronic pen is in contact with the touch screen can be determined by the induced current or induced voltage sensed between the electronic pen and the touch screen. For example, if the induced current or induced voltage is not sensed during the predetermined time interval t1, the user can determine that the electronic pen is not touching the touch screen.

If the electronic pen is separated from the touch screen (S408: Yes), it is recognized that the stroke has been written (S410). If it is recognized that the writing of one stroke is completed, information on the coordinates extracted in S406 is stored in the coordinate data buffer (S412).

Next, when it is determined that the character input is completed (S414: Yes), the information stored in the coordinate data buffer is collected and converted into a byte form to form character data (S414). The character data is stored in a storage device such as a memory or is transferred to an access point device (see FIG. 1) or the like to terminate the character data processing procedure (S418).

However, if it is determined in S414 that another new stroke has been started, that is, if it is determined that the character input has not been completed (S414: NO), the process returns to S404 to recognize the start point of the new stroke. Here, whether or not the character input is completed can be determined based on a time interval during which the electronic pen and the touch screen are not in contact with each other, or whether a specific event is generated. For example, if an induced current or induced voltage is not detected between the electronic pen and the touch screen for a time period longer than a predetermined time interval t2 (> t1), it can be determined that the character input is completed. Alternatively, it is possible to set an event for notifying the system to the end of the character input so that the user can generate it.

5 is a conceptual block diagram showing a second embodiment of a character data processing system according to the present invention.

The present embodiment is characterized in that a representative point extraction module 230 and a coordinate coordinate storage module 240 are used instead of the coordinate extraction module 130, the coordinate coordinate storage module 140, the coordinate data buffer 150 and the character data generation module 160 2, except that it further includes a coordinate recognition module 290, which includes a coordinate data buffer 250, a character data generation module 260, and a coordinate recognition module 290. In the first embodiment shown in FIG. 2, The same or similar. Hereinafter, only the portions different from the first embodiment shown in Fig. 2 will be described, and the same portions as those of the first embodiment will be omitted unless necessary.

The first embodiment differs from the second embodiment in that only the representative points of each stroke are stored in the character data, while all the coordinates constituting each stroke are extracted and the data is stored. In the first embodiment, byte-type character data having the configuration shown in FIG. 3 is newly generated by collecting the information stored in the coordinate data buffer 150. In contrast, in the second embodiment, The coordinate information extracted by the representative point extracting module 230 is converted into a byte form in advance and stored, and the character data generating module 260 generates character data by simply collecting the data.

More specifically, it is as follows. The coordinate recognition module 290 recognizes the coordinate information of the points constituting the stroke until the point of the stroke is recognized by the stroke recognition module 120 until the end point is reached. The points are preferably recognized as x, y coordinate values, and it is preferable to store these coordinate values in a memory or the like. The representative point extraction module 230 extracts representative points of each stroke using the coordinates of the points recognized by the coordinate recognition module 290. The method of extracting the representative points may use techniques well known in the art to which the present invention belongs. For example, an example of a method for extracting representative points is disclosed in Korean Patent Registration No. 126800 entitled " Korean Character Recognition System and Method for Online Character Recognition. &Quot; According to the method disclosed in the above document, the coordinate values of the coordinate points adjacent to each other in the x-axis and y-axis directions are compared with the coordinate points constituting each stroke of the input character, Finds coordinate points that increase monotonously. This point is called a monotone dividing point, and the start point, end point, and monotone dividing point of each stroke are extracted as representative points of the stroke. It should be noted that the above method has been described as an example of a method of extracting representative points of strokes, but need not be limited to the above method. In addition, the representative point may be selected so that the points are approximated to the original stroke shape when the line segment is used.

6 is a diagram showing an example of representative points of a character. As an example, the case where "Kim" is written on the touch screen will be described as an example. "Kim" consists of "a", "l" and "ㅁ". In actual hand recording, "ㅁ" is generally divided into three strokes: "l", "a", "-". That is, "Kim" can be written in total 5 strokes. 6 represent representative points of strokes 1 to 5. These representative points represent a start point, an end point, and a monotone dividing point of each stroke.

The stroke coordinate storage module 240 counts the number of representative points extracted by the representative point extraction module 230 and stores the x and y coordinates of the counted number and representative points in the coordinate data buffer 250 in byte form . The coordinate data stored for each stroke of the character shown in Fig. 6 is shown in Fig. 6 and 7, in the first stroke "a" of FIG. 6, seven strokes are assigned to the second stroke "l", five strokes are assigned to the third stroke "l" 9 "in the" a "and four representative points in the fifth" - ". 7, in the coordinate data buffer 250, byte-type coordinate data is stored for each stroke. At the head of the coordinate data of each stroke, the number of representative points of the stroke is stored in a short form , And then the x and y coordinates of each representative point are stored in short form. In this example, the size of the coordinate data stored in the coordinate data buffer 250 is 130 bytes in total.

When all the characters have been input, the character data generation module 260 collects the coordinate data stored in each of the strokes in the coordinate data buffer 250 to generate character data having the structure shown in FIG.

According to the second embodiment, since only the coordinates of representative points of each stroke are extracted and stored, the amount of coordinate data can be further reduced than in the first embodiment. Further, since the x and y coordinates are stored in the coordinate data buffer 250 in the form of a byte while the characters are being input, it is only necessary to collect the data after the character input is completed, Character data can be generated.

8 is a flowchart showing a second embodiment of a character data processing method according to the present invention.

When the electronic device 10 is set to a mode in which a character can be input (S800), a state in which character input can be received is made (S802). When the induction current or induced voltage is detected between the electronic pen and the touch screen, it is recognized as the start point of the stroke (S804). Subsequently, coordinate information of the points constituting the stroke drawn on the touch screen is recognized (S806). The coordinates recognized in S806 are then used to extract the coordinate points of the stroke. Step S806 may be omitted depending on the method of extracting coordinate points.

After recognizing the start point, since one stroke is being written while the electronic pen is in contact with the touch screen (S808: NO), the coordinates of the points constituting the stroke are recognized (S806). Whether or not the electronic pen is in contact with the touch screen can be determined by the induced current or induced voltage sensed between the electronic pen and the touch screen.

If the electronic pen has moved away from the touch screen (S808: YES), it is recognized that the stroke has been written (S810). If it is recognized that the writing of one stroke has been completed, the representative point of the stroke is extracted using the information about the coordinate points recognized in S806 (S812). For example, a start point, an end point, and a monotone dividing point of a stroke may be the representative point. When the representative points are extracted in S812, the number of representative points of each stroke is counted, and the coordinates of the extracted number and the extracted representative points are converted into byte form and stored in the coordinate data buffer (S814).

Next, when it is determined that the character input is completed (S816: YES), the character data is generated by collecting the information stored in the coordinate data buffer (S818). The character data processing is terminated by storing the character data in a storage device or by transmitting the character data to an access point device (see FIG. 1) (S820).

As described above, according to the present invention, by storing the x and y coordinates of the points included in a stroke constituting a character as coordinate data of a unique form, characters inputted to the touch screen of the electronic device are stored as picture files The amount of data to be transmitted and stored can be significantly reduced as compared with the conventional method of transmitting or storing.

Further, according to the present invention, even in a terminal in which a program capable of processing a specific image format or a control module is not installed, the character data processed by the present invention can be restored and displayed in a form almost identical to the original character have.

In particular, when only the coordinate points of the stroke are extracted and stored, the amount of character data can be further reduced. In addition, when the coordinate data is stored in the buffer in the buffer and the data stored in the buffer is collected when the input of characters is completed, the final character data can be generated within a short time after the end of the character input.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

1 is a conceptual block diagram of an electronic payment system using the present invention.

2 is a conceptual block diagram showing a first embodiment of a character data processing system according to the present invention.

FIG. 3 shows an example of character data stored by the character data storage module of FIG.

4 is a flowchart showing a first embodiment of a character data processing method according to the present invention.

5 is a conceptual block diagram showing a second embodiment of a character data processing system according to the present invention.

6 is a diagram showing representative points in each stroke of the letter "Kim" written on the touch screen.

7 shows an example of coordinate data stored in the coordinate data buffer according to the second embodiment of the present invention.

8 is a flowchart showing a second embodiment of a character data processing method according to the present invention.

Claims (14)

A system for processing characters input through a touch screen of an electronic device as character data capable of being stored and transmitted, A stroke recognition module that identifies and identifies one or more strokes constituting the character and recognizes a start point and an end point of each identified stroke; A coordinate extracting module for extracting x and y coordinates on the touch screen of points constituting each stroke recognized by the stroke recognition module; A coordinate data buffer for storing coordinates extracted by the coordinate extraction module for each stroke; A counting module for counting the number of points constituting each stroke from the coordinate data stored in the coordinate data buffer; And For each stroke constituting the character, an x-coordinate and a y-coordinate of the points constituting each stroke stored in the coordinate data buffer together with the count counted by the counting module are arranged, and the counted number and the coordinates And a character data generating module for generating character data including data, Wherein the character data sequentially includes an x-coordinate and a y-coordinate of the points constituting the stroke with respect to each stroke, sequentially from the start point to the end point or from the end point to the start point. The method according to claim 1, Wherein the character data sequentially includes the counted number and the x and y coordinates of the points for each stroke. The method according to claim 1, Wherein the character data generation module stores the counted number, the x-coordinate and the y-coordinate of each point stored in the coordinate data buffer as a 2-byte size. The method according to claim 1, The character is input by touching the touch screen and the electronic pen, Wherein the stroke recognition module comprises: And recognizes that one stroke has ended when it is determined that the touch screen and the electronic pen are not in contact with each other for a time longer than a predetermined time t1. 5. The method of claim 4, Further comprising a character input module for converting the character into an electromagnetic signal generated by contact between the touch screen and the electronic pen, Wherein the stroke recognition module comprises: And recognizes that one stroke is terminated when it is determined that an electromagnetic signal is not generated for a time longer than the time t1. 5. The method of claim 4, Wherein the stroke recognition module comprises: And recognizes that the character input is terminated when it is determined that the touch screen and the electronic pen are not in contact with each other for a time longer than a predetermined time t2 (> t1). The method according to claim 1, And a representative point extraction module for extracting representative points including a start point and an end point of the stroke based on the coordinates of the points extracted by the coordinate extraction module with respect to each stroke, Wherein the coordinate data buffer stores coordinates of representative points extracted by the representative point extraction module. A system for processing characters input through a touch screen of an electronic device as character data capable of being stored and transmitted, A stroke recognition module that identifies and identifies one or more strokes constituting the character and recognizes a start point and an end point of each identified stroke; A coordinate extracting module for extracting x and y coordinates on the touch screen of points constituting each stroke recognized by the stroke recognition module; A counting module for counting the number of points extracted by the coordinate extracting module for each stroke; A coordinate data buffer for storing, for each stroke, coordinates extracted by the coordinate extraction module together with the count counted by the counting module; And And a character data generating module for collecting the number of counts and coordinate data for each stroke stored in the coordinate data buffer to generate one character data when the character input is terminated, Wherein the character data sequentially includes an x coordinate and a y coordinate of the points constituting the stroke with respect to each stroke from the start point to the end point or from the end point to the start point. A system for processing characters input through a touch screen of an electronic device as character data capable of being stored and transmitted, A stroke recognition module that identifies and identifies one or more strokes constituting the character and recognizes a start point and an end point of each identified stroke; A coordinate recognition module for recognizing an x coordinate and a y coordinate on the touch screen of points constituting each stroke recognized by the stroke recognition module; A representative point extraction module for extracting representative points including a start point and an end point of the stroke on the basis of the coordinates of the points recognized by the coordinate recognition module for each stroke; A counting module for counting the number of representative points extracted by the representative point extracting module for each stroke; A coordinate data buffer for sequentially storing the x-coordinate and y-coordinate of the representative points together with the counted number; And And a character data generating module for collecting the number of counts and coordinate data for each stroke stored in the coordinate data buffer to generate one character data when the character input is terminated, Wherein the character data sequentially includes x coordinate and y coordinate of representative points of the stroke from the start point to the end point or from the end point to the start point for each stroke. 10. The method of claim 9, The representative point extraction module compares the x and y coordinate values of the points recognized by the coordinate recognition module with respect to each stroke and determines whether the coordinate value is monotonically increasing or monotonically decreasing, As a representative point of the stroke. A method of processing characters input through a touch screen of an electronic device as character data capable of being stored and transmitted, Recognizing a start point of the stroke for each of one or more strokes constituting the character; Extracting an x coordinate and a y coordinate of the points constituting the stroke on the touch screen; Temporarily storing the extracted coordinates in a memory; Recognizing an end point of the stroke; Counting the number of points constituting the stroke from the temporarily stored coordinates; Determining whether character input has been completed; And If it is determined that the character input has been completed, the x-coordinate and the y-coordinate of the points constituting each stroke together with the counted number of all the strokes constituting the character are arranged, and the counted number and the coordinate data And generating character data including the character data, Wherein the character data sequentially includes an x coordinate and a y coordinate of points constituting the stroke with respect to each stroke from a start point to an end point or from an end point to a start point in sequence. A method of processing characters input through a touch screen of an electronic device as character data capable of being stored and transmitted, Recognizing a start point of the stroke for each of one or more strokes constituting the character; Recognizing an x coordinate and a y coordinate of the points constituting the stroke on the touch screen; Temporarily storing the recognized coordinates in a memory; Recognizing an end point of the stroke; Extracting representative points of the stroke based on coordinates stored in the memory; Counting the number of representative points of the stroke; Determining whether character input has been completed; And If it is judged that the character input has been completed, the x and y coordinates of the representative points of each stroke together with the counted number of all the strokes constituting the character are arranged, and the counted number and the coordinate data are included And generating character data to be displayed on the display device, Wherein the character data sequentially includes an x coordinate and a y coordinate of representative points from a start point to an end point or from an end point to a start point for each stroke. A computer-readable recording medium storing a program operable to process characters input through a touch screen of an electronic device as character data capable of being stored and transmitted, One or more codes that distinguish and identify one or more strokes that make up the character and that recognize the start and end points of each identified stroke; One or more codes for extracting x and y coordinates of the points constituting each of the recognized strokes on the touch screen; One or more codes for each stroke to store the extracted x and y coordinates in a coordinate data buffer; One or more codes for counting the number of points constituting the stroke from information stored in the coordinate data buffer for each stroke; And One for generating the character data including the counted number and the coordinate data by arranging the x-coordinate and y-coordinate of the points constituting each stroke together with the counted number for all the strokes constituting the character Or more code, Wherein the character data sequentially includes x-coordinate and y-coordinate of the points constituting the stroke with respect to each stroke sequentially from the start point to the end point or from the end point to the start point. A computer-readable recording medium storing a program operable to process characters input through a touch screen of an electronic device as character data capable of being stored and transmitted, One or more codes that distinguish and identify one or more strokes that make up the character and that recognize the start and end points of each identified stroke; One or more codes for recognizing the x and y coordinates on the touch screen of the points constituting each of the recognized strokes; One or more codes for each stroke to extract representative points including a start point and an end point of the stroke based on the coordinates of the recognized points; One or more codes for counting the number of extracted representative points for each stroke; One or more codes sequentially storing the x and y coordinates of the representative points in the coordinate data buffer with the counted number; And And one or more codes for collecting coordinate data of all strokes stored in the coordinate data buffer to generate one character data when the character input is completed, Wherein the character data includes the x coordinate and the y coordinate of the representative points of the stroke sequentially from the start point to the end point or from the end point to the start point with respect to each stroke.

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