KR101120661B1 - Apparatus and method for inputting character using touch screen in portable terminal - Google Patents

Apparatus and method for inputting character using touch screen in portable terminal Download PDF

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Publication number
KR101120661B1
KR101120661B1 KR1020100089802A KR20100089802A KR101120661B1 KR 101120661 B1 KR101120661 B1 KR 101120661B1 KR 1020100089802 A KR1020100089802 A KR 1020100089802A KR 20100089802 A KR20100089802 A KR 20100089802A KR 101120661 B1 KR101120661 B1 KR 101120661B1
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South Korea
Prior art keywords
character
portable terminal
electronic pen
touch screen
character input
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KR1020100089802A
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Korean (ko)
Inventor
조용덕
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주식회사 인스프리트
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/018—Input/output arrangements for oriental characters
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
    • G06F3/023—Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
    • G06F3/0233—Character input methods
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G06F3/04883—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Telephone Function (AREA)
  • User Interface Of Digital Computer (AREA)

Abstract

The present invention relates to a character input device and a method using a touch screen of a portable terminal, and after setting the shape of the font (font), color (color), font size, etc. in the electronic pen for inputting characters in the portable terminal When a character is input on the touch screen, a convenient function of displaying the input character in a set font, color, and font size according to whether the information (letter shape) set in the portable terminal and the electronic pen is provided is provided. . In addition, the electronic device includes a function of canceling the lock function by inputting a preset character or password on the touch screen of the portable terminal.
Character input method using a touch screen of a portable terminal according to the present invention comprises the steps of installing and driving the character input program in the portable terminal; Selecting a character shape from a menu of a character input program to display a character shape setting screen; Setting font shape information including font, color, and font size through a font setting screen; Transmitting the set character information to an electronic pen in a portable terminal; Receiving letter shape information transmitted from the electronic pen and storing the letter shape information in a memory; When the electronic pen is in contact with the touch screen of the portable terminal, the portable terminal compares the character information received wirelessly from the electronic pen with the character information stored in the memory of the portable terminal and determines whether to lock or close the lock based on the match. step; And recognizing a character input by the electronic pen, converting the character input by the electronic pen into a set character shape, and displaying it on the touch screen when the lock function is terminated due to the coincidence of the character information.

Description

Apparatus and method for inputting character using touch screen in portable terminal}

The present invention relates to a character input device and a method using a touch screen of a portable terminal, and more particularly, to a font (color), color (color), size, etc. for an electronic pen that a user inputs a character. Character setting device using the touch screen of the portable terminal to display the characters in the font, color, font size according to the information set in the electronic pen when the character is input on the touch screen after setting and It's about how.

The present invention also relates to a character input device using the touch screen of a portable terminal and a method of canceling a character input lock function when a preset character or password is input to the touch screen of the portable terminal using an electronic pen.

As is well known, the mobile communication industry has grown rapidly in the information and communication field in recent years, and portable terminals (eg, mobile phones, PDAs, etc.) are becoming a necessity for modern people. Under these circumstances, mobile operators are focusing on developing various value-added services to secure customers.

According to this trend, among the currently developed mobile telecommunications supplementary services, the most popular services among users are SMS (Short Message Service) and MMS, which allow users to easily transmit various text messages such as short texts or images. (Multimedia Messaging Service) service.

However, a method of inputting a short text or an image through a portable terminal such as a conventional mobile phone or PDA (Personal Digit Assistant) is generally input through various numeric keys or letter keys provided in the keypad of the terminal. That is, when the user selects a specific character (alphabet, Hangul / vowel, number) printed on 12 key buttons and presses the promised transmission key, the input short text message is transmitted to the called terminal.

However, the above-described conventional text input method is not only inconvenient because the user has to spend a lot of time and effort according to the text input, and in particular, in the case of a user who is unfamiliar with the operation of the elderly or a mobile phone, the text input itself is difficult to utilize the short text service. There was a problem. Therefore, according to the conventional character input method, the service quality cannot be reduced because it cannot satisfy the customer satisfaction of various layers, and thus, there is a problem that the service differentiation with other companies is impossible and the competitiveness is low.

In order to solve this problem, conventionally, a method of inputting a character with a pen on a touch screen of a portable terminal has been developed. Related prior arts are as follows.

Korean Patent No. 0651396 (hereinafter referred to as “prior art 1”) relates to a character recognition apparatus and method for recognizing a character input through a touch screen in a terminal having a touch screen, and includes a touch screen. The terminal has at least one text input area displayed on the touch screen, a user interface in which basic characters and one or more extended characters are assigned to the text input areas, and a touch pen input type input through the text input areas. And a controller for selecting a character and displaying the selected character.

The prior art 1 can input a basic consonant in the corresponding character input area by clicking the pen, and can input an extended consonant in the corresponding character input area by dragging the pen so that the user can easily remember the keys of the keyboard. Although there is an advantage in that the alphabet can be input quickly and conveniently, the function of setting a font, color, font size, etc. in a pen is not disclosed.

Korean Registered Patent No. 0651554 (hereinafter referred to as "prior art 2") relates to a virtual note device and an input method for inputting a letter, symbol or picture through a virtual screen in a mobile communication terminal. And a main body for outputting and displaying on an external surface, and an input device for transmitting a user input signal while moving within the virtual screen, wherein the main body recognizes a trajectory according to the movement of the input device and displays it on the virtual screen. And it provides a virtual note device characterized in that to store the data according to the trajectory therein.

The prior art 2 eliminates the inconvenience of the user having to enter a character or symbol through the keypad of the mobile communication terminal, so that not only the character or symbol can be input at high speed but also a simple picture can be drawn, but the pen ( The function of setting font, color, font size, etc. in a pen is not disclosed.

Korean Patent No. 0715593 (hereinafter referred to as “prior art 3”) relates to a portable terminal capable of pen type message input and a control method thereof, and includes a housing 100 forming a body of the portable terminal, and a user texting. A pen 200 for inputting a message; A pen mounting unit 300 for inserting or attaching the pen 200 to the body of the housing 100; Gyro sensor 400 for detecting the continuous movement of the pen 200; A memory 500 for storing a text message pattern in a table form; After receiving the motion signal from the gyro sensor 400 continuously and forming a message pattern, the predetermined message is selected by comparing the formed message pattern with the text message pattern previously stored in the memory 500, and then all the text messages are filed. Control unit 600 for converting the form; A transmitter 700 for transmitting a text message in a file form to a called terminal; And an LCD display unit 800 for displaying text messages under the control of the control unit 600.

In the prior art 3, when a user writes a picture or a character as if writing a text on an arbitrary surface through a pen attached to a portable terminal, the caller senses the movement according to the user's handwriting motion and recognizes it as a letter or a picture. By providing the user with convenience of text or picture input by transmitting to a portable terminal, a function of setting a font, a color, a font size, etc. in a pen is not disclosed.

In addition, the prior art including the prior art is configured to input a character using a separate plastic pen in a mobile terminal, such as a mobile phone, PMP, in this case to set the desired character shape every time for the input character There was discomfort.

The technical problem to be solved by the present invention is to set the font, color, size, etc. for the electronic pen for the user inputs the character to the character on the touch screen The present invention provides a text input device and a method using a touch screen of a portable terminal that displays the input characters in font, color, and font size according to the information set in the electronic pen.

In addition, another technical problem to be achieved by the present invention is a portable device providing a character input lock setting and termination function according to whether or not the setting information, such as font, color, font size set in the portable terminal and the electronic pen. Disclosed is a character input device using a touch screen of a terminal and a method thereof.

In addition, another technical problem to be achieved by the present invention is a character input device using a touch screen of the portable terminal that the character input lock function is terminated by inputting a preset character or password to the touch screen of the portable terminal using the electronic pen; To show you how.

The problem of the present invention is not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

As a means for solving the above-described technical problem, the invention of claim 1 is a text input method using a touch screen of a portable terminal, comprising: (a) installing and driving a text input program in a portable terminal; (b) displaying a character setting screen when selecting a character shape from a menu of the character input program; (c) setting font shape information including a font, a color, and a font size through the font setting screen; (d) transmitting, by the portable terminal, the set character information to an electronic pen; (e) receiving letter shape information transmitted from the electronic pen and storing the letter shape information in a memory; (f) When the electronic pen is in contact with the touch screen of the portable terminal, the portable terminal compares the character information received wirelessly from the electronic pen with the character information set in the memory of the portable terminal according to whether the electronic pen is matched. Determining whether to lock and unlock; And (g) recognizing a character input by the electronic pen and converting the character input by the electronic pen into a set character shape and displaying it on the touch screen when the lock function is terminated by matching the character shape information. Character input method using a touch screen of a portable terminal.

The invention according to claim 2, wherein the character input method comprises: setting a lock and unlock function through a menu of the character input program, and registering a password or secret character through a menu of the character input program. And a lock function is terminated only when the registered password or secret character is input through the touch screen.

The invention as set forth in claim 3, wherein "the wireless communication between the portable terminal and the electronic pen includes a Bluetooth method, wherein the character input method using the touch screen of the portable terminal." To provide.

In addition, as a means for solving the above-described technical problem, the invention described in claim 4, "In the character input device using the touch screen of the portable terminal, the character input program is installed and driven, the font through the character input program set and store font information including font, color, and font size, and wirelessly transmit the set font information to an electronic pen, and when the electronic pen is in contact with a touch screen, form a font from the electronic pen. Receives the information and compares it with the character information set in the memory to determine whether to lock or unlock according to the match, and if the lock function is terminated by matching the character information is recognized by the electronic pen to recognize the character entered The portable terminal converts the characters input by the pen into the set letters and displays them on the touch screen. last period; And an electronic pen configured to receive and store letter-shaped information from the portable terminal through wireless communication and to transmit the stored letter-shaped information to the portable terminal through wireless communication. Is provided.

The invention according to claim 5, further comprising: a touch screen for inputting positional information in contact with the screen; A key input unit for inputting a signal for operation of the portable terminal; A character recognition unit recognizing a character input through the touch screen; A memory storing the character input program; A wireless transmission / reception unit configured to transmit / receive the character information set through the character input program to and from the electronic pen through wireless communication; And a control unit for controlling the operation of the portable terminal. ”A character input device using a touch screen of a portable terminal.

The invention as set forth in claim 6, wherein the electronic pen comprises: a memory for storing character information received from the portable terminal; A wireless transceiver for transmitting and receiving the letter-shaped information through wireless communication with the portable terminal; And a control unit for controlling transmission and reception of the character-shaped information and a storage operation of the character-shaped information.

The invention according to claim 7, "The wireless communication device according to any one of claims 4 to 6, comprising: a Bluetooth (Bluetooth) method, characterized in that the character input device using a touch screen of a portable terminal. Is provided.

The invention as set forth in claim 8, wherein the character input device is configured to: input the registered password or secret character through the touch screen if a password or secret character is registered through a menu of the character input program. It provides a character input device using a touch screen of the portable terminal, characterized in that only the lock function is terminated.

According to the present invention, if a font, color, a font size, etc. are set in an electronic pen for inputting a character in a portable terminal, and if a character is input on a touch screen, whether the information set in the portable terminal and the electronic pen matches or not According to the lock and unlock function is provided, and when the lock function is terminated, it recognizes the input character and displays the font, color, and font size set on the touch screen. Therefore, when a character is input to a portable terminal such as a mobile phone or a PMP using a separate input device, the inconvenience of having to set a desired letter shape for the input character every time can be eliminated.

In addition, by inputting a preset character or password on the touch screen of the portable terminal, the character input lock function is terminated, thereby enhancing the security function and providing convenience to the user.

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

1 is an overall configuration diagram of a character input apparatus using a touch screen of a portable terminal according to an embodiment of the present invention
2 is an exemplary view showing an example of inputting a character using an electronic pen on the touch screen of the portable terminal according to the present invention.
3 is an operation flowchart showing a character input method using a touch screen of a portable terminal according to an exemplary embodiment of the present invention.
4 is a flowchart illustrating a method of setting a character input lock and release function on a touch screen of a portable terminal according to the present invention.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In order to clearly explain the present invention in the drawings, parts not related to the description are omitted, and similar parts are denoted by similar reference numerals throughout the specification.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Embodiment of a Character Input Device Using a Touch Screen of a Portable Terminal

1 is an overall configuration diagram of a character input apparatus using a touch screen of a portable terminal according to an embodiment of the present invention.

As shown in FIG. 1, the character input device using the touch screen of the portable terminal includes a controller 110, a key input unit 120, a touch screen 130, a character recognition unit 140, a memory 150, and a character. The mobile terminal 100 includes an input program 160, a wireless transceiver 170, and an antenna 171, and a controller 210, a wireless transceiver 220, an antenna 221, and a memory 230. One electronic pen 200 is included. Here, the portable terminal 100 is a digital device such as a mobile phone or a PMP equipped with the touch screen 130, and the electronic pen 200 writes a character on the touch screen 130 of the portable terminal 100. Input device to input.

The character input program 160 installed in the portable terminal 100 sets and stores character shape information including font, color, and font size through the key input unit 120, and sets the character information. It is a program for wirelessly transmitting letter-shaped information to the electronic pen 200. In addition, when the character is input through the touch screen 130 or when the electronic pen 200 is in contact with the screen, the character input program 160 generates font information (font, color) from the electronic pen 200. (color, letter size, etc.) is received and compared with the letter shape information stored in the memory 150 to determine whether there is a match. At this time, if the character shape information set in the portable terminal 100 and the character shape information stored in the electronic pen 200 are terminated, the character input lock function is canceled. Keep it going. In addition, when the two character-shaped information coincides with each other, the character input program 160 uses the electronic pen 200 to input the character input on the touch screen 130 into the character recognition unit 140. Recognized through the character recognition unit 140, and converts the character recognized in the set font (font, color, font size, etc.) and displayed on the touch screen 130. In addition, the character input program 160 may set a lock function and a termination function through a menu, and if a password or secret character is registered through the menu, the registered password or secret character may be set through the touch screen 130. Release the lock only on input.

The portable terminal 100 installs (stores) and drives the character input program 160 having such a function in the memory 150. In this case, the character input program 160 is driven and controlled by the controller 110.

The key input unit 120 of the portable terminal 100 functions to input a signal required for the operation of the portable terminal 100, and uses a keypad provided in a mobile phone or a PMP. In the present invention, the key input unit 120 is used to input a font, color, font size, etc. in addition to the existing key input function, and input a command for operating the character input program 160. .

The touch screen 130 is a device for inputting positional information in contact with the screen as a data signal, and inputs characters and the like into the electronic pen 200 and sets the input characters into fonts and colors ( color), font size and display. Characters input through the touch screen 130 are recognized by the character recognition unit 140. The character recognition unit 140 recognizes which character is input by grasping the position information of the character input to the touch screen 130. At this time, since the character recognition method is a conventional known technique, it will not be described in detail here.

The wireless transmission / reception unit 170 converts a wireless signal into text information such as font, color, and font size set in the portable terminal 100, and converts the wireless signal through the antenna 171 to the electronic pen 200. Is transmitted to the wireless transceiver 220). To this end, the wireless transceiver 170 of the portable terminal 100 and the wireless transceiver 220 of the electronic pen 200 operate in association to transmit and receive a wireless signal. Here, the wireless signal transmission and reception method includes a Bluetooth (Bluetooth) method.

The controller 150 controls the overall operation of the portable terminal 100, and controls the operation of each component of the portable terminal 100 according to the operation of the text input program 160.

Meanwhile, the electronic pen 200 receives letter shape information (font, color, font size, etc.) from the portable terminal 100 through wireless communication, and stores the received information in the memory 230. When the electronic pen 200 inputs a character or the like through the touch screen 130 of the portable terminal 100, the font information (font, color, and the like) stored in the memory 230 is input. Font size, etc.) is transmitted to the portable terminal 100 through wireless communication. To this end, the electronic pen 200 is a wireless transceiver 220 for wirelessly transmitting the character information stored in the memory 230 to the portable terminal 100, the operation of transmitting and receiving the character information and the memory ( The controller 210 controls the storage operation of the 230.

Character shape information (font, color, font size, etc.) stored in the electronic pen 200 is used as an authentication means when inputting a character into the portable terminal 100. That is, when the letter shape information stored in the electronic pen 200 and the letter shape information stored (set) in the portable terminal 100 coincide with each other, the lock function is released and text input is performed through the touch screen 130. It becomes possible.

As described above, the character input apparatus using the touch screen of the portable terminal according to the present invention includes a font, color, and font size in the portable terminal 100 by driving the character input program 150. Setting and storing character shape information, and wirelessly transmitting the set character shape information from the portable terminal 100 to the electronic pen 100 to store in the electronic pen 100. Subsequently, when a character is input through the touch screen 130 of the portable terminal 100, the portable terminal 100 receives letter shape information from the electronic pen 200 and stores the character in its memory 150. It compares with shape information and decides whether to lock or unlock based on the match. In this case, when the lock function is terminated by matching the character-shaped information with each other, the portable terminal 100 recognizes the character input by the electronic pen 200 and sets the character input by the electronic pen 200. Font, color, font size, etc.) to be displayed on the touch screen.

Character input example

2 is an exemplary view showing an example of inputting a character using an electronic pen on the touch screen of the portable terminal according to the present invention.

When a user inputs a character into the electronic pen 200 on the touch screen 130 of the portable terminal 100, the character shape information stored in the electronic pen 200 is set in the portable terminal 100. If the information matches, as shown in FIG. 2, a character input by the user using the electronic pen 200 is set in the portable terminal 100 (font, color, font size). Etc.) and display on the touch screen.

Embodiment of Character Input Method Using Touch Screen of Portable Terminal

3 is a flowchart illustrating a text input method using a touch screen of a portable terminal according to an exemplary embodiment of the present invention.

Referring to FIGS. 1 to 3, first, the text input program 160 is installed and driven on the portable terminal 100 (step S110).

When the character input program 160 is driven, a menu screen of the character input program 160 appears on the touch screen 130. If [Letter] is selected on the menu screen, a letter shape setting screen is displayed (step S120).

After inputting font shape information including font, color, and font size by using the key input unit 120 through the font shape setting screen, the font shape information is displayed in the memory ( 150 is set while being stored (step S140).

Subsequently, the portable terminal 100 transmits the letter shape information set in the memory 150 to the electronic pen 200 through wireless communication (step S150).

Then, the electronic pen 200 stores the font information (font, color, font size, etc.) transmitted from the portable terminal 100 in the memory 230 (step S160).

Thereafter, when the electronic pen 200 is in contact with the touch screen 130 of the portable terminal 100, the portable terminal 100 receives letter-shaped information wirelessly from the electronic pen 200. Compared to the character information set in the memory 150 of the portable terminal 100 determines whether to lock and unlock according to the match (step S170).

Here, when two pieces of character-shaped information respectively stored in the portable terminal 100 and the electronic pen 200 coincide with each other (YES in step S180), the locking function is terminated (step S200) and is inputted to the electronic pen. The character is recognized (step S210). However, if the two letters do not match each other (NO in step S180), the portable terminal 100 maintains the lock state as it is (step S190).

Finally, the character input by the electronic pen in the step S210 is converted into a font (font, color, font size, etc.) set in the memory 150 in the portable terminal 100 Displayed on the touch screen 130 (step S220).

Example of how to set the character input lock and unlock function

4 is a flowchart illustrating a method of setting a character input lock and release function on a touch screen of a portable terminal according to the present invention.

According to the present invention, after driving the character input program 160 of the portable terminal 100 (step S300), a lock and release function may be set through a menu of the character input program 160 (steps S310 to S340). .

In addition, the present invention registers a password or a secret character through the menu of the character input program 160 to perform a lock function, and then through the touch screen 130 the same password or secret as the registered password or secret character The lock function can be set to be released only when a character is input (steps S350 to S370).

Character input device and method using the touch screen of the portable terminal according to the present invention configured as described above after setting the shape of the font (font), color (color), font size, etc. in the device for inputting the character in the portable terminal When a character is input on the touch screen, the character is displayed in a set font, color, and font size according to whether the information (letter shape) set in the portable terminal and the character input device is matched. The technical problem can be solved.

Preferred embodiments of the present invention described above are disclosed to solve the technical problem, and those skilled in the art to which the present invention pertains (man skilled in the art) various modifications, changes, additions, etc. within the spirit and scope of the present invention. It will be possible to, and such modifications, changes, etc. will be considered to be within the scope of the following claims.

100: portable terminal 110: control unit
120: key input unit 130: touch screen
140: character recognition unit 150: memory
160: character input program 170: wireless transceiver
171: antenna 200: electronic pen
210: control unit 220: wireless transceiver
221: antenna

Claims (8)

In the character input method using a touch screen of a portable terminal,
(a) installing and driving a character input program in the portable terminal;
(b) displaying a character setting screen when selecting a character shape from a menu of the character input program;
(c) setting font shape information including a font, a color, and a font size through the font setting screen;
(d) transmitting, by the portable terminal, the set character information to an electronic pen;
(e) receiving letter shape information transmitted from the electronic pen and storing the letter shape information in a memory;
(f) When the electronic pen is in contact with the touch screen of the portable terminal, the portable terminal compares the character information received wirelessly from the electronic pen with the character information set in the memory of the portable terminal according to whether the electronic pen is matched. Determining whether to lock and unlock; And
(g) recognizing a character input by the electronic pen and converting the character input by the electronic pen into a set character shape and displaying it on the touch screen when the lock function is terminated by matching the character-shaped information;
Character input method using a touch screen of the portable terminal comprising a.
The method of claim 1, wherein the character input method comprises:
Set the lock and unlock function through the menu of the character input program,
When a password or secret character is registered through the menu of the character input program, a lock function is terminated only when the registered password or secret character is input through the touch screen. .
The method of claim 1,
Wireless communication between the portable terminal and the electronic pen includes a Bluetooth method. Character input method using a touch screen of a portable terminal.
In the character input device using a touch screen of a portable terminal,
Install and run a character input program, and set and save character information including font, color, and font size through the character input program, and wirelessly transmit the set character information to an electronic pen. When the electronic pen contacts the touch screen, the electronic pen receives character information from the electronic pen and compares the character information with the character information set in the memory to determine whether the electronic pen is locked or terminated based on the match. A portable terminal recognizing a character input by the electronic pen when the function is terminated, converting the character input by the electronic pen into a set character shape, and displaying the character on the touch screen; And
An electronic pen for receiving and storing letter-shaped information from the portable terminal through wireless communication and transmitting the stored letter-shaped information to the portable terminal through wireless communication;
Character input device using a touch screen of the portable terminal comprising a.
The portable terminal of claim 4, wherein the portable terminal comprises:
A touch screen for inputting location information in contact with the screen;
A key input unit for inputting a signal for operation of the portable terminal;
A character recognition unit recognizing a character input through the touch screen;
A memory storing the character input program;
A wireless transmission / reception unit configured to transmit / receive the character information set through the character input program to and from the electronic pen through wireless communication; And
A control unit controlling an operation of the portable terminal;
Character input device using a touch screen of a portable terminal, comprising a. The electronic pen of claim 4, wherein the electronic pen is:
A memory for storing character information received from the portable terminal;
A wireless transceiver for transmitting and receiving the letter-shaped information through wireless communication with the portable terminal; And
A controller for controlling transmission and reception of the character-shaped information;
Character input device using a touch screen of a portable terminal, comprising a.
The method of claim 4, wherein the wireless communication is:
Character input device using a touch screen of a portable terminal, characterized in that including a Bluetooth (Bluetooth) method.
The apparatus of claim 4, wherein the character input device is:
When a password or secret character is registered through a menu of the character input program, a lock function is terminated only when the registered password or secret character is input through the touch screen. .
KR1020100089802A 2010-09-14 2010-09-14 Apparatus and method for inputting character using touch screen in portable terminal KR101120661B1 (en)

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KR20140029821A (en) * 2012-08-30 2014-03-11 삼성전자주식회사 Apparatus and method for selecting a input in terminal equipment having a multi touch input device
KR101815633B1 (en) * 2014-07-11 2018-01-08 주식회사 네오랩컨버전스 Bluetooth object instrument registration method and its device

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KR20140029821A (en) * 2012-08-30 2014-03-11 삼성전자주식회사 Apparatus and method for selecting a input in terminal equipment having a multi touch input device
KR102008438B1 (en) * 2012-08-30 2019-08-07 삼성전자주식회사 Apparatus and method for selecting a input in terminal equipment having a multi touch input device
KR101815633B1 (en) * 2014-07-11 2018-01-08 주식회사 네오랩컨버전스 Bluetooth object instrument registration method and its device

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