KR20070056392A - Portable terminal and method capable of inputting writing rapidly - Google Patents

Abstract

A portable terminal for rapidly inputting characters and a method for inputting characters using the same are provided to select and input desired words more rapidly by separately storing frequently used words and recently displayed or used words according to the priority order, detecting inferable words among the stored words when a letter is inputted, and providing them. A portable terminal for rapidly inputting characters comprises a storage part(250), a display part(140), an inferable word detection part(240), and a control part(110). The storage part(250) separately stores specific words in the order of frequency in use. The display part(140) displays inputted characters. If a letter is displayed through the display part(140), the inferable word detection part(240) detects one or more inferable words beginning with the displayed letter among the stored words. Then the control part(110) displays the detected words so that the user can select one of them. If one of the displayed words is selected, the control part(110) replaces the displayed letter with the selected word.

Description

Portable terminal capable of rapid character input and character input method using the same {Portable Terminal and Method capable of inputting writing rapidly}

1 is a block diagram schematically showing an example of a character input device of a general portable terminal;

2 is a diagram illustrating an example of a layout structure of key buttons provided in the key input unit of FIG. 1;

3 is a flowchart illustrating a character input method using a character input device of a conventional portable terminal;

Figure 4 is a block diagram showing a portable terminal capable of fast text input according to a preferred embodiment of the present invention,

5 is a diagram illustrating an example of a configuration of a character storage unit of FIG. 4;

FIG. 6 is a diagram illustrating an example of characters for each language stored in a writing character storage unit and a received character storage unit of FIG. 5;

7 is a diagram illustrating an example of a configuration of an extracted word storage unit of FIG. 4;

FIG. 8 is a diagram illustrating an example of words for each language stored in a composition word storage unit and a reception word storage unit of FIG. 7;

9 is a flowchart illustrating a text input method using a portable terminal device capable of quickly inputting text according to a first embodiment of the present invention;

10 is a flowchart illustrating another example of a method for inputting a character when there is no word selection signal for input among the recommended words displayed in the word selection determination step of FIG. 9 according to an embodiment of the present invention;

11 is a flowchart illustrating a text input method using a portable terminal capable of fast text input according to a second embodiment of the present invention; and

12 is a flowchart illustrating an example of a method of extracting a word from a displayed sentence according to an embodiment of the present invention.

The present invention relates to a text input method of a portable terminal, and more particularly, to a text input device and a text input method using the same that can quickly input a character to be input in a simpler method when entering the text.

Recently, liquid crystal displays (LCDs) of portable terminals have been installed in many sizes on the main body, and data services such as the Internet, short message service, and mail are available. Language texting or text input functions become more important.

In general, a character input method using a portable terminal adopts a method of recommending all inferred words starting with a character that is input by managing a word database in order to provide promptness when inputting a character.

1 is a block diagram schematically illustrating an example of a text input device of a general portable terminal.

As shown, the character input apparatus includes a display unit 12 for displaying a character, a key input unit 20 for inputting a character, a storage unit 16 for storing a program for operation of the character input apparatus, and a controller ( 10) The storage unit 16 includes a word storage unit 18 that stores predetermined words that can be displayed in a corresponding language.

FIG. 2 is a diagram illustrating an example of a layout structure of key buttons provided in the key input unit 20 of FIG. 1.

As illustrated, the key input unit 20 includes a call key 21, a confirmation key 23, a cancel key 25, an end key 27, and an alphanumeric input key 30. Here, an alphanumeric input key 30 is used to enter characters.

When a character is input from the key input unit 20, the controller 10 retrieves words starting with the input character from the word storage unit 18 and displays the words through the display unit 12. Then, if a predetermined word is selected through the key input unit 20 among the displayed words, the controller 10 selects the selected word as a word for input and displays it on the display unit 12.

For example, when a character input through the key input unit 20 is Korean, when the one letter (eg, 'ga') is input, the controller 10 searches for words starting with the one letter entered. Search from the word storage unit 18 and display through the display unit 12 to recommend the input of the word.

When the character input through the key input unit 20 is English, the control unit 10 includes words starting with the input alphabet 'a' when a letter (for example, 'a') is inputted. ) And search through the display unit 12 to recommend the input of the word.

3 is a flowchart illustrating a character input method using a character input device of a conventional portable terminal.

First, the control unit 10 stores the corresponding words in the word storage unit 18 according to the input word registration command (S11). The controller 10 determines whether the current operation mode of the character input apparatus is the character input mode (S13), and receives the character input from the key input unit 20 and displays it on the display unit 12 in the character input mode (S15). ).

The control unit 100 retrieves all words starting with the displayed letter (for example, 'a', 'a', etc.) from the word storage unit 18 (S17). At this time, the control unit 10 sorts all the searched words and displays them through the display unit 12 (S19).

The controller 10 determines whether a corresponding word is selected for input and display among the displayed words (S21). If there is no word selected among the displayed words, the controller 10 performs step S15. When any one of the displayed words is selected, the controller 10 displays the selected word through the display unit 12 (S23).

By the way, the character input method using the character input device of the conventional portable terminal, all the words starting with the input character to search all displayed in a sequence so that the user can select the input. Therefore, the user can select a word to input while checking all the searched words starting with the input letter.

That is, in the related art, since the user does not consider the category of the word to be input at all, but searches and recommends all the words starting with the input letter, it takes a lot of time to check and select the letter to enter. There is a problem. For example, if 100 words starting with 'a' are searched and displayed, and the required word among the 100 words displayed is displayed in the 100th, the user checks the 100 words displayed first from the first word The problem is that you need to select the word that is located.

Therefore, the conventional character input method using the character input device is difficult to achieve the desired purpose for the rapid input of the character according to the proposal of the present method, the character input time rather than entering the word directly depending on the situation There is a problem that can take a lot.

A first object of the present invention for solving the above problems is to provide a portable terminal for inputting a character to be input more quickly and a character input method using the same.

It is a second object of the present invention to provide a portable terminal capable of selecting and inputting a word to be input by a user more quickly when a character is input, and a character input method using the same.

It is a third object of the present invention to provide a portable terminal capable of quickly selecting and inputting a corresponding word when a character is input by separately managing words frequently used by a user, and a method of inputting a character using the same.

According to an embodiment of the present invention, there is provided a portable terminal capable of fast text input, comprising: a storage unit for separately storing predetermined words in order of high frequency of use based on frequency of use of words; A display unit which displays an input character; An analogy word detection unit that preferentially detects at least one word of the order of high frequency of use stored in the storage unit among inferred words starting with the displayed letter; And a controller configured to display at least one word detected by the analogy word detection unit through the display unit, and to replace the selected word with a character displayed on the display unit according to a command for selecting the displayed word. Achieved by the terminal.

Preferably, the portable terminal according to the present embodiment extracts at least one word included in the sentence from a sentence received through an external communication and input through an internal key and displayed on a screen, and stored in the storage unit. It further comprises a wealth.

In addition, the portable terminal of the present embodiment further includes a frequency extracting unit configured to set priorities according to the frequency of use for the words extracted by the word extracting unit and store the priorities in the storage unit.

The priority according to the frequency of use according to the present embodiment is set based on the number of times the word is displayed on the display unit and the time point at which the word is displayed on the display unit.

Preferably, the storage unit, a word storage unit for storing inferred words starting with the characters displayed on the display unit; A sentence storage unit for storing at least one sentence received through the external communication and input through the internal key input and displayed on the screen; And an extraction word storage unit for storing the words whose priority is set according to the frequency of use by the frequency extraction unit.

The sentence storage unit may include: a received sentence storage unit storing the at least one sentence received through the external communication; And a composition sentence storage unit for storing the at least one sentence input through the internal key input.

In the present embodiment, the sentence stored in the received sentence storage is a received text message, and the sentence stored in the written character storage is an outgoing text message.

The extracted word storage unit may include: a received word storage unit configured to store words extracted from a sentence stored in the received sentence storage unit according to the usage frequency of the corresponding word; And a composition word storage unit for storing the words extracted from the sentences stored in the composition sentence storage unit according to the frequency of use of the corresponding words.

The controller may, when the corresponding character is input in the text input mode for reply to the received text message, selects a word that can be inferred from the inputted text among words extracted from the received text message stored in the receiving word storage unit. Extract.

On the other hand, the above object is, according to an embodiment of the present invention, a portable terminal capable of fast text input, the storage unit for storing the predetermined word in order of the frequency of use based on the frequency of use of the word; A key input unit for inputting a letter forming the letter; A text editing unit generating the text by combining the input letters; A display unit displaying the generated characters; An analogy word detection unit for detecting at least one word of the inferred order from the inferred words starting with the displayed letter from the storage; And a controller configured to display at least one word detected by the analogy word detection unit through the display unit, and to replace the selected word with a character displayed on the display unit according to a command for selecting the displayed word. Achieved by the terminal.

On the other hand, the above object is, according to an embodiment of the present invention, in the rapid character input method using a character input device, a) separately storing the predetermined words in the order of the frequency of use separately based on the frequency of use of the word; step; b) when the corresponding character is input in the character input mode, displaying the input character on the screen; c) detecting from said stored words at least one word of said inferred order of use, beginning with said displayed letter; d) displaying the detected at least one word to be selectable; And e) when the command for selecting the displayed word is input, displaying the selected word in the text input mode in place of the displayed letter.

Preferably, in the character input method of the present embodiment, after the step e), when the input of the character is completed in the character input mode, extracting at least one word included in the sentence from the input completed sentence. ; And storing the extracted words by setting priorities based on the frequency of use.

The priority according to the frequency of use is set based on the number of times the corresponding word is displayed and the time at which the corresponding word is displayed.

On the other hand, the above object is, according to an embodiment of the present invention, a rapid text input method using a portable terminal, comprising: receiving a text message transmitted from the outside; Extracting and storing a word included in the received text message; Determining a reply mode for replying to the received text message; If it is determined that the reply mode is selected, displaying an input character; Detecting at least one inferred word starting with the displayed letter from words extracted and stored from the received text message; Displaying the detected at least one word to be selectable; And when the command for selecting the displayed word is input, displaying the selected word by replacing the displayed word with the input character in the reply mode.

According to the present invention, the words frequently used according to the frequency of use and the recently displayed or used words according to the time of use are prioritized and stored separately and frequently used inferred words starting with the letter input in the text input mode. By detecting and providing the priorities among the words to be used and recently used words, it is possible to select and enter a word to be input more quickly. In addition, by extracting and storing the words included in the received text message separately, and starting with the letters entered in the text input mode for reply to the received text message by detecting and providing the priority among the words extracted from the received text message When a character is input for replying to a received text message, a word to be input can be selected and displayed more quickly.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the same elements in the figures are represented by the same numerals wherever possible. In addition, detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted.

Figure 4 is a block diagram showing a portable terminal capable of fast text input according to a preferred embodiment of the present invention.

As shown, the portable terminal includes a control unit 110, a camera unit 120, an image processing unit 130, a display unit 140, a wireless communication unit 150, a data processing unit 160, an audio processing unit 170, and a key. An input unit 180, a text editing unit 210, a word extracting unit 220, a frequency extracting unit 230, an inferred word detecting unit 240, and a storage unit 250 are provided.

The controller 110 performs an overall control operation of the portable terminal. The control unit 110 performs a series of operations for transmitting and receiving text messages, editing texts, extracting words from sentences / characters displayed on the screen, and detecting and displaying words starting with the displayed characters. To control.

The camera unit 120 photographs an image captured by a lens, and includes a camera sensor that converts the photographed optical signal into an electrical signal, and a signal processor that converts the analog image signal photographed from the camera sensor into digital data. In this case, a CCD (Charge Coupled Device) sensor is generally applied to the camera sensor, and the signal processor may be implemented by a digital signal processor (DSP). In addition, the camera sensor and the signal processor may be implemented separately or integrally.

The image processor 130 performs a function of generating screen data for displaying an image signal output from the camera unit 120. The image processor 130 processes the image signal output from the camera unit 120 in units of frames, and outputs the processed frame image data corresponding to the characteristics and the size of the display unit 140. In addition, the image processor 130 includes an image codec and performs a function of compressing the frame image data displayed on the display unit 140 in a set manner or restoring the compressed frame image data to the original frame image data. . The image codec may be a JPEG codec, an MPEG codec, a wavelet codec, or the like. In addition, the image processing unit 130 may have an OSD function. In this case, the image processing unit 130 outputs display data to be displayed on a predetermined area of the screen under the control of the control unit 110. can do. In the present exemplary embodiment, the camera 120 and the image processor 130 may be selectively provided.

The display unit 140 displays the image signal output from the image processor 130 on the screen, and displays the display data output from the control unit 110 on the screen. The display unit 140 may be a liquid crystal display (LCD). In this case, the display unit 140 may include an LCD controller, a memory capable of storing image data, and an LCD display device. In this case, when the LCD is implemented using a touch screen method, the LCD may operate as an input unit.

The display unit 140 according to an exemplary embodiment of the present invention may convert and display a text message received in a portable terminal into a text form. In addition, the display unit 140 may display sentences / characters stored in the portable terminal and sentences / characters edited by the portable terminal itself. In addition, the display unit 140 may display predetermined words starting with letters inputted under the control of the controller 110.

The wireless communication unit 150 performs a function of transmitting and receiving corresponding data for wireless communication of the portable terminal. The wireless communication unit 150 includes an RF transmitter for upconverting and amplifying a frequency of a transmitted signal, and an RF receiver for low noise amplifying and downconverting a received signal. The wireless communication unit 150 according to the present embodiment converts an input text message into a wireless signal and transmits it through a wireless channel. In addition, the wireless communication unit 150 receives a wireless signal transmitted through a wireless channel, converts it into problem message data, and outputs it.

The data processor 160 includes a transmission module for encoding and modulating a signal for transmission through a wireless channel, and a reception module for demodulating and decoding a signal received through a wireless channel.

The audio processor 170 may be configured as a codec, and the codec includes a data codec for processing packet data and an audio codec for processing an audio signal such as voice. The audio processor 1760 converts the digital audio signal received by the data processor 160 into an analog signal through an audio codec and reproduces the same through a speaker. In addition, the audio processor 170 converts an analog audio signal input from the microphone into a digital audio signal through an audio codec and outputs the digital audio signal to the data processor 160. The codec may be provided separately or included in the controller 110.

The key input unit 180 includes a plurality of keys for inputting numeric and text information and control keys for controlling the operation of the portable terminal. The key input unit 180 according to an embodiment of the present invention provides functions for inputting a text, inputting a text message for a short message service, transmitting an input text message, editing a displayed text, and selecting a word starting with the input text. Each has corresponding keys to perform. Here, the key input unit 180 outputs the corresponding command signal to the controller 110.

The text editing unit 210 combines the Korean characters (jamo) and / or the English alphabet input from the key input unit 210 according to character combination characteristics set according to the corresponding language. In this case, the combined characters are displayed through the display unit 140 under the control of the controller 110.

The word extracting unit 220 extracts a word for each language from a character / sentence displayed on the screen through the display unit 140 under the control of the controller 110. Here, the type of text / sentence displayed on the screen may include, for example, a text / sentence received from the outside, a text / sentence input and edited through the key input unit 180, or a text / sentence stored in the storage unit 260. have.

The word extracting unit 220 extracts a word having a grammatical noun or a verbal characteristic by separating the character / phrase based on a space and then removing the investigation when the displayed character / phrase is Korean. In addition, when the displayed character / sentence is English, the word extraction unit 220 extracts the word by separating the character / sentence based on the space.

The frequency of use extractor 230 checks the frequency of use of each word extracted by the word extractor 220 and stores the information in the storage 250. Here, the frequency of use indicates a priority according to the display time of the word based on the number of times the word is displayed on the screen and the current time. In the present embodiment, the function of the frequency extracting unit 230 may be selectively applied.

The analogy word detection unit 240 detects inferred words starting with the letter displayed on the display unit 140 according to the input of the key input unit 180 according to the priority. The controller 110 sequentially displays the words detected by the inferred word detector 240 in order of priority.

When a selection command is displayed among the displayed words, the controller 110 replaces the selected word with a character being input in the character input mode and displays and displays the selected word.

The storage unit 250 stores programs for controlling a general operation of the portable terminal and programs for inputting letters and searching for words according to an embodiment of the present invention. In addition, the storage 250 may temporarily store data generated while executing programs.

The storage unit 250 includes a word storage unit 260, a character storage unit 270, and an extracted word storage unit 280 according to an exemplary embodiment of the present invention.

The word storage unit 260 stores words input according to a storage command during and after the manufacture of the portable terminal.

The text storage unit 270 stores text messages and texts edited and transmitted and received through the portable terminal.

The extracted word storage unit 280 sequentially sorts the words extracted by the word extraction unit 220 from the characters / statements stored in the character storage unit 270 according to the use source (send, receive, edit) and the point of use. Save it. In this case, the extracted word storage unit 280 may sort and store the words extracted by the word extracting unit 220 according to the alphabetical order and / or the alphabetical order. Also, the extracted word storage unit 280 may classify the words extracted by the word extracting unit 220 according to the source of use, and sort and store them in alphabetical order and / or alphabetical order. In addition, the extracted word storage unit 280 may sequentially sort and store the words extracted through the word extraction unit 220 according to the frequency of use of each word.

According to an exemplary embodiment of the present invention, when a corresponding character (for example, 'a' or 'a') is input through the key input unit 180 in the character input mode, the controller 110 inputs through the display unit 140. Character to be displayed. At this time, the control unit 110 controls the analogy word detection unit 240 to sequentially detect the frequently used words among the inferred words starting with the letters inputted through the key input unit 180 from the extracted word storage unit 280. do. The controller 110 sequentially sorts and displays the detected frequently used words through the display unit 140 in a selectable form. When a selection command for any one of the displayed words is input, the controller 110 replaces the selected word with the character being input in the character input mode and displays the selected word through the display unit 140.

Therefore, words frequently used and recently used words are stored separately from the words frequently used according to the frequency of use and the words recently displayed or used according to the time of use. By detecting and providing the priorities among them, it is possible to select and display the words to be input more quickly when the characters are input.

Meanwhile, when a corresponding character (eg, 'ga' or 'a') is input through the key input unit 180 in a text input mode for replying to a received text message, the controller 110 displays the display unit 140. Displays the characters entered through. At this time, the control unit 110 controls the analogy word detection unit 240 to detect inferred words starting with a character input through the key input unit 180 from the extracted word storage unit 280 in which the words extracted from the received text message are stored. do. The controller 110 sequentially displays the detected words in a selectable form through the display unit 140. When a selection command for any one of the displayed words is input, the controller 110 replaces the selected word with the character being input in the character input mode and displays the selected word through the display unit 140.

Accordingly, by extracting and storing the words included in the received text message and storing them separately, the words starting with the text input in the text input mode for reply to the received text message are detected and provided as priority among the words extracted from the received text message. When a character is input for replying to a received text message, a word to be input can be selected and displayed more quickly.

5 is a diagram illustrating a configuration example of the character storage unit 270 of FIG. 4.

As shown, the character storage unit 270 has a writing character storage unit 272 for storing the characters created in the portable terminal, and a received character storage unit 274 for storing the characters received from the outside.

FIG. 6 is a diagram illustrating an example of a character for each language stored in the written character storage unit 272 and the received character storage unit 274 of FIG. 5.

FIG. 6A is a diagram illustrating an example of a character for each language stored in the composition character storage unit 272 of FIG. 5. As shown, the writing character storage unit 272 'I love. You can see that a Korean sentence is stored. In addition, the write character storage unit 272 is' I love you. You can see that the English sentence "To your friend."

FIG. 6B is a diagram illustrating an example of a language-specific character stored in the received character storage 274 of FIG. 5. Received character storage unit 274 can be seen that the Hangul sentence "me too." In addition, the received text storage unit 274 can be seen that the English sentence 'Me too.'

FIG. 7 is a diagram illustrating a configuration example of the extracted word storage unit 280 of FIG. 4.

As illustrated, the extracted word storage unit 280 stores a word extracting unit 282 storing words extracted from a character (sentence) created in a portable terminal, and words extracted from a character (sentence) received from the outside. And a receiving word storage section 284.

8 is a diagram illustrating an example of a word for each language stored in the composition word storage unit 282 and the reception word storage unit 284 of FIG. 7.

8A is a diagram illustrating an example of words for each language stored in the composition word storage unit 282 of FIG. 7. As shown, it can be seen that the composition word storage unit 282 stores Korean words such as 'love' and 'friend'. In addition, it can be seen that the word storage unit 282 stores English words such as 'I', 'love', 'you', 'your', and 'friend'.

8B is a diagram illustrating an example of words for each language stored in the reception word storage unit 284 of FIG. 7. It can be seen that the received word storage unit 284 stores Korean words such as 'I'. In addition, it can be seen that the English words 'Me' and 'too' are stored in the receiving word storage unit 284.

9 is a flowchart illustrating a text input method using a portable terminal capable of fast text input according to a first embodiment of the present invention.

First, the control unit 110 controls the text editing unit 210 to create a character by combining the letters input through the key input unit 180 in the text input mode, and displays the generated sentence according to the result of the display unit 140 Display through (S110). The controller 110 determines whether writing of the character is completed through the key input unit 180 (S120).

If it is determined that the writing of the character is completed, the controller 110 controls the word extracting unit 220 to extract a word from the written sentence (S130). When a word is extracted from the prepared sentence, the controller 110 controls the frequency of use extraction unit 230 to store the sorted words by prioritizing them according to the frequency of use (S140).

Thereafter, the controller 110 determines whether or not the operation of the portable terminal performs a character writing operation according to the character input mode (S150). In the mode for creating a character, the control unit 110 displays the character input through the key input unit 180 through the display unit 140 (S160).

At this time, the control unit 110 has at least one having a priority according to the frequency of use from the extracted word storage unit 280, the words extracted from the inferred words, starting from the displayed characters, are sequentially stored according to the frequency of use The analogy word detection unit 240 is controlled to detect a word of (S170). In this case, the controller 110 may be configured to preferentially search for at least one word most recently used in time.

Accordingly, the controller 110 sorts the words detected by the analogy word detector 240 and displays the selected words through the display unit 140 (S180). In this case, the controller 110 determines whether one word is selected from the displayed words (S190). If it is determined that a word is not selected, the controller 110 performs step S180 of sorting and displaying the detected word.

When a selection command for any one of the words displayed in operation S190 is input, the controller 110 replaces the selected word with the character that is being input in the character input mode and displays it on the display unit 140 (S210). Thereafter, the controller 110 determines whether character writing is completed according to the completion of the character input mode (S220). If it is determined that character writing is not completed, the controller 110 performs steps S160 to S210. When it is determined that the writing of the character is completed, the controller 110 extracts words from the letters written in the same manner as in steps S130 and S140 and sequentially sorts and stores the words according to the frequency of use (S230).

Therefore, the words are extracted from the written letters, prioritized according to the frequency of use, sorted and stored, and the words inferred from the letters inputted at the time of character input are detected from the stored words according to the frequency of use and recommended for word input. In addition, it is possible to select a frequently used word more quickly and easily according to the frequency of use when entering letters.

FIG. 10 is a flowchart illustrating another example of a method for inputting a character when there is no word selection signal for input among the recommended words displayed in the word selection determination step S190 of FIG. 9 according to an embodiment of the present invention.

First, if a word selection signal is not input among the words displayed in operation S190, the controller 110 searches for a search command from the word storage unit 260 in which all words that can be inferred as characters input from the key input unit 180 are stored. It is determined whether there is any (S191). If it is determined that there is no word search command from the word storage unit 260, the controller 110 performs step S180. If it is determined that there is a word search command from the word storage unit 260, the controller 110 controls the inferred word detection unit 240 to detect all the inferred words starting with the displayed letter from the word storage unit 260. (S192).

Accordingly, the controller 110 sorts the detected words and displays the selectable words through the display unit 140 (S193). In this case, the controller 110 determines whether there is a signal for selecting a word for input among the displayed words (S194). If it is determined that there is a word selection signal, the controller 110 replaces the selected word with the character input in the character input mode and displays it on the display unit 1401 (S195).

After displaying the selected word through the display unit 140, the controller 110 determines whether or not the character writing is completed in the character input mode (S196). When it is determined that character writing is completed, the controller 110 extracts a word from the letters written in the same manner as in steps S130 and S140 in FIG. 9, sets priorities according to the frequency of use, and stores the word in the extracted word storage unit 280 (S197). ). If it is determined that the character creation is not completed, the controller 110 receives a character input from the key input unit 180 (S201), and returns to step S160 in FIG.

Meanwhile, if it is determined that a word for input is not selected among the words displayed in operation S194, the controller 110 determines whether the character is continuously input through the key input unit 180 in succession to the input character (S198). . If it is determined that characters through the key input unit 180 are not continuously input, the controller 110 performs step S193.

When it is determined that the characters through the key input unit 180 are continuously input, the controller 110 displays the characters continuously input through the display unit 140 (S199). Thereafter, the controller 110 determines whether writing of the input character is completed (S196). The controller 110 selectively performs steps S197 and S210 according to whether the character writing is completed.

11 is a flowchart illustrating a text input method using a portable terminal capable of fast text input according to a second embodiment of the present invention.

First, the controller 110 receives a text message from the outside through wireless communication (S310). The controller 110 controls the word extractor 220 to extract a word from the received problem message (S320). When the word is extracted, the controller 110 sorts the extracted words and stores the extracted words in the extracted word storage unit 280 (S330).

Thereafter, the controller 110 determines whether the operation mode of the portable terminal is a reply text input mode for the received text message (S340). If the operation mode is the reply character input mode, the controller 110 displays the character input through the key input unit 180 through the display unit 140 (S350).

The controller 110 detects the inferred words starting with the displayed letter from the received text message and stored in the extracted word storage unit 280 (S360). Accordingly, the controller 110 sorts the detected words and displays the selected words on the display unit 140 in a selectable form (S370). At this time, the controller 110 determines whether there is a word selected for character input among the displayed words (S380).

If it is determined that there is a selected word among the displayed words, the controller 110 replaces the selected word with the character being input in the reply character input mode and displays it on the display unit 140 (S390). After displaying the selected word, the controller 110 determines whether or not writing of the letter is completed according to the reply letter input mode (S392).

If it is determined that the character writing is not completed, the controller 110 performs steps S350 to S390. If it is determined that the character creation is not completed, the controller 110 extracts a word from the created character, sorts it according to the frequency of use, and stores the word in the extracted word storage unit 280 (S394).

12 is a flowchart illustrating an example of a method of extracting a word from a displayed sentence according to an embodiment of the present invention.

First, the word extractor 220 separates the sentence based on a space (S131). At this time, the word extraction unit 220 separates the irradiation from the separated character (phrase) (S133). Through this process, the word extractor 220 extracts a word from a sentence (S135).

Meanwhile, in the case of extracting a word from an English sentence, the word extracting unit 220 may extract a word only by separating the English sentence based on a space.

In the present invention as described above, the words frequently used according to the frequency of use are separately stored and the words that can be inferred as the letters inputted during the character input are first detected from the frequently used words. The present invention as described above may be equally applied to frequently used phrases, phrases, sentences, and special characters.

In the above, specific preferred embodiments of the present invention have been illustrated and described. However, the present invention is not limited to the above-described embodiments, and various modifications can be made by those skilled in the art without departing from the gist of the present invention attached to the claims. will be.

According to the present invention, the words frequently used according to the frequency of use and the recently displayed or used words according to the time of use are prioritized and stored separately and frequently used inferred words starting with the letter input in the text input mode. By detecting and providing the priorities among the words to be used and recently used words, it is possible to select and enter a word to be input more quickly.

In addition, by extracting and storing the words included in the received text message separately, and starting with the letters entered in the text input mode for reply to the received text message by detecting and providing the priority among the words extracted from the received text message When a character is input for replying to a received text message, a word to be input can be selected and displayed more quickly.

Claims (21)

In a portable terminal capable of fast text input, A storage unit for separately storing predetermined words in order of increasing frequency of use based on frequency of use of words; A display unit which displays an input character; An analogy word detection unit that preferentially detects at least one word of the order of high frequency of use stored in the storage unit among inferred words starting with the displayed letter; And And a controller configured to display at least one word detected by the analogy word detection unit through the display unit, and to replace the selected word with a character displayed on the display unit according to a command for selecting the displayed word. Portable terminal made with. The method of claim 1, And a word extractor configured to extract at least one word included in the sentence from a sentence received through an external communication and input through an internal key input, and to store the word in the storage. The method of claim 2, And a usage frequency extractor configured to set priorities according to the frequency of use for the words extracted by the word extractor and store the priorities in the storage unit. The method of claim 3, wherein The priority according to the frequency of use is set based on the number of times the word is displayed on the display unit and the time point at which the word is displayed on the display unit. The method of claim 4, wherein The storage unit, A word storage unit for storing inferred words starting with a letter displayed on the display unit; A sentence storage unit for storing at least one sentence received through the external communication and input through the internal key input and displayed on the screen; And And an extraction word storage unit for storing the words whose priority is set according to the frequency of use by the frequency extraction unit. The method of claim 5, The sentence storage unit, A received sentence storage unit for storing the at least one sentence received through the external communication; And And a writing sentence storage unit for storing the at least one sentence inputted through the internal key input. The method of claim 6, The sentence stored in the received sentence storage unit is a portable terminal, characterized in that the received text message. The method of claim 6, The sentence stored in the composition text storage unit is a portable terminal, characterized in that the outgoing text message. The method according to claim 7 and 8, The extracted word storage unit, A received word storage unit for storing the words extracted from the sentences stored in the received sentence storage unit according to the frequency of use of the corresponding words; And And a written word storage unit for storing the words extracted from the sentences stored in the written sentence storage unit according to the use frequency of the corresponding words. The method of claim 9, The control unit, When a corresponding character is input in a text input mode for replying to the received text message, a word that can be deduced from the received text message stored in the receiving word storage is extracted from the received text message. Portable terminal made with. In a portable terminal capable of fast text input, A storage unit which stores predetermined words in order of increasing frequency of use based on frequency of use of words; A key input unit for inputting a letter forming the letter; A text editing unit generating the text by combining the input letters; A display unit displaying the generated characters; An analogy word detection unit for detecting at least one word of the inferred order from the inferred words starting with the displayed letter from the storage; And And a controller configured to display at least one word detected by the analogy word detection unit through the display unit, and to replace the selected word with a character displayed on the display unit according to a command for selecting the displayed word. Portable terminal made with. The method of claim 11, And a word extracting unit configured to extract at least one word included in the sentence from a sentence displayed on a screen which is input through an external communication and a key input unit and stored in the storage unit. The method of claim 12, And a usage frequency extractor configured to set priorities according to the frequency of use for the words extracted by the word extractor and store the priorities in the storage unit. The method of claim 13, The priority according to the frequency of use is set based on the number of times the word is displayed on the display unit and the time point at which the word is displayed on the display unit. The method of claim 14, The storage unit, A word storage unit for storing inferred words starting with a letter displayed on the display unit; A sentence storage unit for storing at least one sentence received through the external communication and input through the key input unit and displayed on the screen; And And an extraction word storage unit for storing the words whose priority is set according to the frequency of use by the frequency extraction unit. The method of claim 15, The extracted word storage unit, A reception word storage unit for storing the words extracted from the sentences received through the external communication according to the frequency of use of the words; And  And a writing word storage unit for storing the words inputted through the key input unit and extracted from the sentences displayed on the screen according to the frequency of use of the corresponding words. In the quick character input method using a character input device, a) separately storing predetermined words in the order of high frequency of use based on the frequency of use of the word; b) when the corresponding character is input in the character input mode, displaying the input character on the screen; c) detecting from said stored words at least one word of said inferred order of use, beginning with said displayed letter; d) displaying the detected at least one word to be selectable; And e) when the command for selecting the displayed word is input, replacing the selected word with the displayed letter which is input in the text input mode and displaying the selected word. The method of claim 17, After step e), When the input of the character is completed in the character input mode, Extracting at least one word included in the sentence from the input completed sentence; And And storing the extracted words by setting priorities based on the frequency of use. The method of claim 18, The priority according to the frequency of use is set based on the number of times the word is displayed and the time when the word is displayed. In the fast text input method using a portable terminal, Receiving a text message sent from the outside; Extracting and storing a word included in the received text message; Determining a reply mode for replying to the received text message; If it is determined that the reply mode is selected, displaying an input character; Detecting at least one inferred word starting with the displayed letter from words extracted and stored from the received text message; Displaying the detected at least one word to be selectable; And And when the command for selecting the displayed word is input, replacing the selected word with the displayed letter which is input in the reply mode. In the character input device capable of quick character input, A storage unit for separately storing predetermined words in order of increasing frequency of use based on frequency of use of words; A display unit which displays an input character; An analogy word detection unit that preferentially detects at least one word of the order of high frequency of use stored in the storage unit among inferred words starting with the displayed letter; And And a controller configured to display at least one word detected by the analogy word detection unit through the display unit, and to replace the selected word with a character displayed on the display unit according to a command for selecting the displayed word. Character input device.

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