KR20020087667A - Apparatus and method for inputting a character in portable mobile terminal - Google Patents

Abstract

PURPOSE: A device for inputting characters of a portable mobile terminal is provided to display all common phrases starting with the first letter when the first letter of a word or a phrase prestored by a user is inputted, and to insert a selected common phrase as text, thereby quickly inputting frequency-used words or phrases. CONSTITUTION: A memory(24) stores common phrases composed of more than two letters as data. A controller(22) makes corresponding input character strings as data by inputting a common phrase specifying signal for character strings within a text, and stores the data in the memory(24). When the first letter is inputted, the controller(22) reads prestored common phrases including the first letter from the memory(24), and displays the read common phrases on a screen, then inputs the common phrases instead of the first letter by inputting a selection signal for the display common phrases.

Description

Apparatus and method for inputting a character in portable mobile terminal}

The present invention relates to a character input device and method of a portable mobile terminal, and more particularly, when any character is first input in a character input mode of a portable mobile terminal, a previously stored word or phrase including the first input character. The present invention relates to an apparatus and a method for displaying characters on a screen and simply inputting characters according to a user's selection.

As wireless communication technology has been put into practical use, it has developed competitively with wired communication method that began with telegraph in the middle of the 19th century. Coaxial cable carriers and analog microwave carriers, which represent wireless communications, have been at their peak.

With the rapid development of optical fiber transmission technology, in the land fixed communication field, the wired communication method by the fiber optic cable has overwhelmed the wireless communication method in terms of economy and technicality regardless of the transmission distance.

In the early 1980s, in North America, the service area was divided into hexagonal cells of several Km to several 10Km in diameter, and the same frequency channel was repeatedly used in geographically separated cells, and wireless channel switching between cells was implemented as subscribers moved. The first commercialization of cellular mobile communication systems has made mobile phones a universal service.

In addition, various wireless communication systems have been commercialized in recent years, such as the demand for mobile phones has exploded.

Mobile communication can be viewed as a form of adding mobility to an existing communication service. A type of mobility includes terminal mobility in which a terminal can be freely moved by being released from a subscriber line, and a user moves to an arbitrary terminal. There are user mobility that can communicate, and service mobility that can accommodate not only voice but also data and video by widening a wireless channel by increasing a use frequency band.

With the development of technology, the miniaturization and lightening of mobile phone terminals are rapidly spreading to personal mobile phones (cellular phones, PCS phones; mobile phones).

The phone offers the following services: If the mailbox subscriber cannot receive a call on the cell phone, the caller leaves a message in the mailbox subscriber's voice mailbox or fax mailbox and allows the mailbox subscriber to check the message. Voice Sampling Service), a voice recognition dialing service (Voice) that connects a voice recognition device to a mobile phone system to memorize / register a subscriber's voice and then make a voice call without having to dial the phone number when the subscriber makes a mobile call. Activated Dialing Service), you can receive numbers and text messages (40-50 characters in English, 80 characters in English) or various life information as texts through the screen of your mobile phone. Upon arrival, you will be notified by mobile phone. Give provide such SMS (Short Message Service).

The emergence of mobile phones has led to the emergence of various types of portable devices that perform similar functions. Among them, portable devices capable of text recognition called PDA (Personal Digital Assistant) are in the spotlight.

The PDA is a device that can perform information collection, storage, creation, retrieval and communication functions, and can easily interface various applications through the pen.

PDAs are equipped with a variety of software and peripherals based on the computer's basic CPU, memory, operating system, and operating system.

A PDA generally refers to a small computer that uses a pen to enter, but is also used in various terms. For example, Palm Computing's Palm and other similar types of personal digital devices are called PDAs. Pens without keyboards are used in products using Microsoft's Windows CE operating system. Devices that use the same Windows CE operating system as Palm-Sizes PC (PPC), but products that use a keyboard are called HPC (Handheld PC). Currently, the term "PDA" is used to encompass all of these concepts.

In the above-mentioned mobile phone or PDA, character input by a keypad operation or direct character input using a pen is performed. The input speed is significantly lower than that of a general desktop keyboard, and the entire contents are copied when a frequently used word or phrase is required. There is an inconvenience to be done or to input again.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and provides a text input device for a portable mobile terminal, which enables the user to designate a boilerplate and display a screen so that text input frequently used in the mobile terminal can be performed quickly. The purpose is.

Another object of the present invention is to provide a text input method of a portable mobile terminal, which enables a user to designate a boilerplate and display a screen so that text input frequently used in the portable mobile terminal can be performed quickly.

1 is a configuration diagram when the character input device of the present invention is applied to a character recognition portable mobile terminal,

2A and 2B illustrate an example of a data format stored in a memory shown in FIG. 1;

3 is a flowchart illustrating a character input method of a portable mobile terminal according to an embodiment of the present invention;

4 is a diagram illustrating an example of a screen display when a word designated as a boilerplate is selected in the description of a character input method according to an embodiment of the present invention;

FIG. 5 is a diagram illustrating an example of screen display when a phrase designated as boilerplate is selected in the description of the character input method according to the exemplary embodiment of the present invention.

※ Explanation of code for main part of drawing

10: character input unit 12: display unit

14: touch screen 16: character database

18: touch signal receiving unit 20: character recognition unit

22: control unit 24: memory

In order to achieve the above object, a character input device of a portable mobile terminal according to a preferred embodiment of the present invention, a memory for storing the boilerplate text of two or more characters; And converts the input string into data by inputting a boilerplate designation signal for the character string in the text to be input, and reads out the prestored boilerplate including the first character from the memory as the first character is input. And a control unit for inputting the boilerplate text in place of the first character by inputting a selection signal for the screened boilerplate text.

According to an aspect of the present invention, there is provided a character input method of a portable mobile terminal, comprising: a first process of converting a character string in an input text into a memory; A second step of reading and displaying the boilerplate text having two or more characters previously stored in the memory as the first character is inputted; And a third step of inserting the selected boilerplate text into the text by inputting a selection signal for the screen-displayed boilerplate text.

Hereinafter, a character input device and method for a portable mobile terminal according to an embodiment of the present invention will be described with reference to the accompanying drawings.

1 is a configuration diagram when the character input device of the present invention is applied to a character recognition portable mobile terminal, and displays a character input unit 10 capable of inputting various characters and characters inputted from the character input unit 10 and various common phrases. A touch screen 14 having a display unit 12 for displaying the display unit 12; Intrinsic feature data representing characteristics of Hangul, for example, a character database 16 in which intrinsic coordinate data and stroke data corresponding to each character and scanning data obtained by scanning and normalizing each characterized character are registered; Output coordinate value signal and stroke number of the touch screen 14 generated when a character is input by direct character input on the touch screen 14 using a pen or a character keypad (not shown) operation on the touch screen 14. A touch signal receiver 18 which receives a value signal (analog signal), converts the data into digital data, and outputs the converted digital data; when the character input to the character input unit 10 is a character written by a pen, The feature data is generated based on the coordinate value and the stroke number value according to the movement path, and the unique feature data registered in the character database 16 is searched for the same unique feature data within a predetermined range of error. A character recognition unit 20 for detecting and outputting a character recognition signal corresponding thereto; And storing the input characters into the memory 24 by inputting the boilerplate selection signal for the characters in the text input in the character input mode, and recalling the previously stored boilerplate including the first character as the first character is inputted. A control unit 22 reads out of the memory 24 and displays the screen, and inputs the boilerplate in place of the first character by inputting a selection signal for the displayed boilerplate.

Unique characteristic data of each of the characters stored in the character database 16 are data determined by experimental values.

The character input unit 10 and the display unit 12 occupy a predetermined area on the touch screen 14. The touch screen 14 is a device capable of inputting text data, and a resistance plate method for outputting a coordinate value signal and a stroke value signal according to a change in resistance value is used, or a coordinate value signal and stroke number according to a change in a charge amount value of a capacitor. A capacitor plate method of outputting a value signal is used.

The touch screen 14 recognizes characters input from a user, that is, characters input through the character input unit 10 as pressing points according to pressure, and indicates X / Y coordinate value signals and stroke numbers. Outputs a stroke value signal. The coordinate value and the stroke value signal are used to determine the moving state and pressure state of the pressure point generated when the user inputs text through the text input unit 10 on the touch screen 14. It becomes a resource of the state data to be able to know which character is the input character based on the coordinate data according to the change and how many times a continuous pressure occurs.

In addition, as a method of inputting a character into the character input unit 10, a character input by a pen and a character keypad operation may be performed. In the case of direct character input by the pen, the character recognition unit 20 may be used. The controller 22 recognizes which character is the written character, and in the case of character input by the character keypad operation, the controller 22 performs a character recognition operation based on a touch signal according to the character keypad operation. .

On the other hand, the data stored in the memory 24 is composed of control information and boilerplate for the controller 22 to determine the display order of the boilerplate data as illustrated in FIGS. 2A and 2B. Here, the boilerplate text is stored in the form of a word (ie, a character string) or a phrase in the boilerplate data region as illustrated in FIGS. 2A and 2B. The control information is stored in the use frequency area (see FIG. 2A) or the recent use time area (see FIG. 2B). Although the numbers of decimal numbers "3", "2", and "1" are shown in the usage frequency area of FIG. 2A for easy understanding, the decimal numbers "3", "2", and "1" are respectively converted into binary data. The converted information is stored. In FIG. 2B, the recent usage time area is easily understood to be "01110708" and "01071400", which stores data representing year / month / day / hour / minute. In addition, although letters such as "hello", "hello", "good bye", "goodbye…", "goodbye…" and the like are easily illustrated in the boilerplate data area of FIGS. It is assumed that digital information is stored.

When the controller 22 displays the boilerplate stored in the memory 24 on the display unit 12, the controller 22 displays the screen in such a manner that the number of times of use is arranged in the order of high use or recent use.

In addition, when the boilerplate displayed on the display unit 12 is a phrase, the controller 22 causes the display to be less than the brightness of the input first character, and selects a portion (that is, a user) from the screened boilerplate (in the case of the phrase). Inserts a string of characters up to a block) into the text.

3 is a flowchart illustrating a text input method of a portable mobile terminal according to an embodiment of the present invention.

When the user selects a text input mode using a keypad and a pen provided in the text recognition portable mobile terminal, a corresponding selection signal is inputted to the controller 22. Accordingly, the controller 22 converts the current operation mode into a mode capable of text input (step S10).

When a user writes a predetermined character (for example, a character) using a pen or a character keypad, the character currently input is displayed on the display unit 12 under the control of the controller 22 (step S12).

Here, in case of direct letter input by the pen, the output X / Y coordinate value signal and stroke value signal (analog signal) according to the movement path on the touch screen 14 are transmitted to the touch signal receiving unit 18, and the touch signal The receiving unit 18 converts the input analog X / Y coordinate value signal and stroke value signal into a digital form and transmits the digital form to the control unit 22, and the control unit 22 transmits the digital X / Y coordinate value signal. And a stroke value signal to the character recognition unit 20. The character recognition unit 20 controls the character recognition signal for the currently input character based on the unique feature data for each character previously registered in the character database 16 under the control of the controller 22. 22). As a result, the control unit 22 may know what character is currently input. If the character is input by the character keypad, the controller 22 determines which character is the character currently input by the digital X / Y coordinate value signal input through the touch signal receiver 18.

Then, the controller 22 determines whether or not the boilerplate designation signal for the character currently being input is input (step S14).

When the user inputs the word "hello" and floats one space by moving the space bar or the cursor, and operates the boilerplate designation button before entering another word, the controller 22 controls the boilerplate corresponding to the manipulation of the boilerplate designation button. Based on the designation signal, it is determined that there is a boilerplate designation (" Yes " in step S14), and the word " hello " (i.e., a character string separated by a space) is stored in the memory 24 as boilerplate data (step S16). ).

On the other hand, in the above example, it is assumed that the designation of boilerplate words as words, but may be a phrase. In other words, the user enters a paragraph such as "Hello Hong-gil-dong. Today is…", specifies the desired part of the paragraph (for example, "Hello-gil-dong."), And operates the boilerplate designation button. When the control unit 22 determines that there is a boilerplate designation based on the boilerplate designation signal corresponding to the boilerplate designation button operation ("Yes" in step S14), the phrase "Hello, Hong-gil-dong." The data is stored in the memory 24 (step S16).

If there is no designation of the boilerplate text (“No” in step S14), the controller 22 is input through the character input unit 10 and the boilerplate text having the first character displayed on the display unit 12 is the memory 24. Is already stored (step S18).

As a result of the search, if no boilerplate is found ("No" in step S18), the control unit 22 returns to step S12 to display the characters input through the character input unit 10 on the display unit 12. .

On the contrary, when the boilerplate word having the first character displayed on the display unit 12 is stored in the memory 24 ("Yes" in step S18), the controller 22 uses the retrieved boilerplate number of times. Are displayed sequentially on the display unit 12 according to or recently used (step S20).

Referring to the case in which the searched boilerplate word is a word, as shown in FIG. 4, when the user inputs a letter "not" as the first character, the display unit 12 includes a phrase that starts with the word "not" (eg, " Hello "," Hello "," Hello ") are displayed. In this state, when the user selects the desired boilerplate among the several boilerplates displayed on the display unit 12 (for example, "hello") ("Yes" in step S22), the corresponding boilerplate selection signal is the touch signal receiving unit. It is generated at 18 and transferred to the controller 22. Accordingly, the control unit 22 determines the selected boilerplate text (i.e., "hello") as text and displays it on the display unit 12 as shown in FIG. 4 (step S24). Then, the controller 22 increases the number of times of use of the boilerplate (ie, hello) by one. Then, the controller 22 adjusts the time used for the boilerplate (i.e., "hello") (step S26).

In the case where the searched word phrase is a phrase, when the word phrase is sequentially displayed on the display portion 12 in the step 20, the phrase "Hi Hong-gil" is shown on the display portion 12 as illustrated in FIG. Today's boilerplate is displayed. The brightness of the boilerplate of "Hello, Hong Gil-dong. Today" is displayed is set to be less than the brightness of the first character (ie, "in") that the user entered. Of course, there may be a boilerplate with other phrases, but it is assumed that there is only one boilerplate that satisfies the conditions of step S18 to help the description. In this state, when the user selects a desired part of the boilerplate displayed on the display unit 12 (for example, "Hello, Gil-dong") as a block ("Yes" in step S22), the corresponding boilerplate selection signal is received. The touch signal receiver 18 is generated and transmitted to the controller 22. Accordingly, the control unit 22 determines the selected boilerplate (ie, "Hello, Gil-gil") as text and displays it on the display unit 12 as shown in FIG. 5 (step S24). Then, the controller 22 increases the number of times of use of the boilerplate (ie, "Hello, Gil-gil. Today"). Then, the control unit 22 adjusts the used time for the boilerplate (that is, "Hello Gil-dong. Today is") (step S26).

After that, when the character input mode cancel signal is input to the controller 22 (" Yes " in step S28), the controller 22 ends the simple character input operation of the present invention.

In the above description of the embodiments of the present invention, when the boilerplate is a word and the boilerplate is divided into phrases, the wording and the boilerplate may be mixed and stored in the memory 24. . In this case, on the display unit 12, the word boilerplate and the phrase boilerplate are sorted and displayed in the order of use or recently used order. When any one of the words and phrases is selected on the display unit 12 in which the words and phrases are mixed and displayed, the subsequent operation is performed in the same manner as in any of the above-described operations depending on whether the words or phrases are words or phrases. All. The boilerplate may be a phrase.

As described in detail above, according to the present invention, when the first letter of a word or phrase that is stored in advance by a user is input, all the boilerplate words of the word or phrase starting with the first letter are displayed and the selected boilerplate text is selected as the text. By inserting, it is possible to enter a frequently used word or phrase simply and quickly.

On the other hand, the present invention is not limited only to the above-described embodiment, but can be modified and modified within the scope not departing from the gist of the present invention, the technical idea to which such modifications and variations are also applied to the claims Must see

Claims (10)

A memory that stores two or more characters of boilerplate as data; And By inputting the boilerplate designation signal for the character string in the input text, the input string is data-stored and stored in the memory. As the first character is input, the previously stored boilerplate including the first character is read out from the memory and displayed on the screen. And a control unit which inputs the boilerplate in place of the first character by inputting a selection signal for the screened boilerplate. 4. The method of claim 1, The data to be stored in the memory is a character input device of a portable mobile terminal, characterized in that the control unit is composed of control information for determining the display order of the boilerplate data. The method of claim 2, The control information is a number of times of use, and the controller displays the previously stored boilerplate on the basis of the control information. The method of claim 2, The control information is a recent usage time, and the control unit displays the pre-stored boilerplate based on the control information. The method of claim 1, And the control unit inputs a character from the screen displayed boilerplate to the selected part in place of the first character. A first step of converting the character string in the input text into data and storing it in a memory; A second step of reading and displaying the boilerplate text having two or more characters previously stored in the memory as the first character is inputted; And And inserting the selected boilerplate text into the text by inputting a selection signal for the screen-displayed boilerplate text. The method of claim 6, The data to be stored in the memory in the first process is a character input method of a mobile terminal, characterized in that the control information for determining the display order of the boilerplate data and the boilerplate. The method of claim 7, wherein The control information is a number of times of use and character input method of the mobile terminal, characterized in that for displaying the pre-stored boilerplate based on the control information. The method of claim 7, wherein The control information is a recent usage time, and the character input method of the mobile terminal, characterized in that to display the pre-stored boilerplate based on the control information. The method of claim 7, wherein Character input method of the mobile terminal, characterized in that for inputting the characters from the on-screen displayed boilerplate in place of the first character.