KR20060040189A - Wireless communication terminal and its method for providing function of high speed message processing - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a wireless communication terminal having a high speed text message processing function and a method thereof.

2. The technical problem to be solved by the invention

The present invention provides a text message high speed for speeding up a text message processing by comparing and analyzing parameter changes of a text input engine before and after a key input when creating a text message in a wireless communication terminal and performing key input processing corresponding to the parameter change. It is an object of the present invention to provide a wireless communication terminal having a processing function and a method thereof.

3. Summary of the Solution of the Invention

According to an aspect of the present invention, there is provided a wireless communication terminal comprising: input means for receiving a key input signal such as a character or a cursor movement when a text message is written; Control means for comparing and analyzing parameter changes before and after key input as a key input signal is received through the input means, performing key input processing corresponding to the parameter change, and then outputting a key input result screen accordingly; And output means for outputting a key input result screen according to the control of the control means.

4. Important uses of the invention

The present invention is used in a wireless communication terminal.

Wireless communication terminal, text input engine, parameter change, Unicode, national standard code, text message processing

Description

Wireless communication terminal and its method for providing text message high speed processing function             

1 is a flowchart illustrating a text message processing method in a conventional wireless communication terminal;

2 is a configuration diagram of an embodiment of a wireless communication terminal having a text message fast processing function according to the present invention;

3 is a detailed configuration diagram of an embodiment of a text input engine of a wireless communication terminal having a text message fast processing function according to the present invention;

4 is a flowchart illustrating a text message fast processing method in a wireless communication terminal according to the present invention;

5 is an exemplary explanatory diagram for comparing and analyzing parameters before and after key input among text message fast processing methods in a wireless communication terminal according to the present invention;

FIG. 6 is a diagram illustrating an embodiment of a process of outputting a text message received to date in a text message fast processing method in a wireless communication terminal according to the present invention.

* Explanation of symbols on the main parts of the drawing

21: wireless transmission and reception device 22: central processing unit

23: Codec 24: Storage device

25: audio output device (speaker) 26: display (LCD)

27: input device (keypad) 28: voice input device (microphone)

29: character input engine

The present invention relates to a wireless communication terminal having a high speed text message processing function and a method thereof, and more particularly, to compare and analyze the parameter change of the text input engine before and after key input when creating a text message in the wireless communication terminal. A wireless communication terminal having a text message fast processing function and a method thereof for speeding up a text message processing by performing a key input process corresponding to a change.

In the present invention, a wireless communication terminal is a mobile communication terminal, a personal mobile communication terminal (PCS), a personal digital terminal (PDA), a smart phone, a next generation mobile communication terminal (IMT-2000), wireless communication while carrying an individual such as a wireless LAN terminal Say this is possible terminal.

In the present invention, the letter is a term of meaning including not only the Korean alphabet, the English alphabet, but also numbers, special symbols, and emoticons. A term of meaning.

There may be various advantages of the wireless communication terminal, but above all, it is said that the greatest advantage is in the mobility provided to the user who is calling. Due to this mobility, the number of wireless communication subscribers has increased exponentially, and in recent years, wireless communication terminals are widely used by the general public. In particular, short message service (SMS) is a service that can exchange short text messages between wireless communication terminals, and is widely used because it is easy to implement and use, and can provide various additional services without directly using a call path. .

A text message processing method for temporarily storing a text received from a user in a conventional wireless communication terminal and outputting it to a screen will be described with reference to FIG. 1.

1 is a flowchart illustrating a text message processing method in a conventional wireless communication terminal.

First, when the character input engine of the wireless communication terminal receives the character input signal through the keypad, the character input signal is converted into the corresponding Unicode and stored in the Unicode buffer (101). At this time, the text input engine is a program for processing input text. As well as text messages prepared to date are stored in Unicode, information related to other text messages is stored in internal parameters.

For reference, Unicode is an abbreviation for the 2-byte universal universal character code (UCS), which is an international standard. The official name is "ISO / IEC 10646-1 (Universal Multiple-Octet Coded Character Set)". Unicode is designed to facilitate data exchange by computer by increasing the compatibility between characters by unifying all data values assigned to each character to 16 bits.

In other words, the value of each character of the code currently used in each country is 7 bits in English, 8 bits in non-English, 16 bits in Korean or Japanese, etc. For this purpose, the ISO / IEC 10646-1 plane is assigned code values for the characters and special symbols of 26 languages used around the world (the maximum number of characters is 65,536 characters). In addition, the Chinese characters of Korea, China, Japan, and Taiwan were integrated to accommodate the characters of each country in two bytes. That is, the same two-byte code is allocated to similar Chinese characters used in Korea, Japan, China, and Taiwan.

On the other hand, the character input engine that stores the text messages received so far in the Unicode buffer scans the Unicode buffers in turn and converts them into national standard codes (KS codes, etc. in the case of our country) to form a standard code text stream It stores in the standard code buffer and calculates the length and cursor position of the constructed standard code text stream (102). In other words, in order to display a text stream in Unicode format, the font must be converted into a font in a national standard code (KS code) format.

For reference, unlike an English alphabet that can be processed as 1 byte, Hangul (syllable) should be composed of a coding system of 2 bytes or more due to the characteristics of a character, which is standardized in the country as "KSC 5601". Originally enacted in 1987 in accordance with the International Standardization Organization's code exchange system ISO 2022, the standard is called 'Complete Hangul Code' and consists of 2,350 Korean, 4,888 Chinese characters and 986 special characters. .

However, complete Hangul does not support all Hangul characters, and its construction method does not conform to the combination principle of Hangul syllables. KS C5601-1992). Combination type sets a fixed value (defined as 5 bits) to initial, neutral, and final characters, and adds a Korean delimiter bit, and has a 2-byte value combining the values as a code value. This code system is used as an internal information processing code system in some document processors (word processors).

Thereafter, the standard code buffer is sequentially scanned and stored in the display buffer line by line (103). In this case, the display buffer is composed of a plurality of buffers according to the number of lines of the display device, and the characters corresponding to the standard codes stored for each line are output to the corresponding lines of the display device.

That is, the user interface (UI) task scans the display buffer for each line in turn and outputs it to the display device (104).

The above processes "101" to "104" are repeatedly performed whenever a keypad input occurs, that is, whenever a character is input or the cursor is moved.

However, this conventional method repeatedly scans the Unicode buffer and the standard code buffer every time a key input occurs, and each time a large number of character codes must be converted and processed. There was a time-consuming problem. In particular, in the case of a short message, there is no problem, but when a long (more than 1,000 characters) message is written or a key is input at a high speed, the response speed to the user input is slowed, causing a user to feel uncomfortable.

That is, the conventional text message processing method is mainly an algorithm that considers a short message, and in order to form a national standard code text stream by scanning the entire Unicode text stream in the character input engine every time a key is input, Since the entire scan of the national standard code text stream is sorted, the longer the sentence is, the more computation is required to process the character input.

The present invention has been proposed to solve the above problems, and compares and analyzes the parameter change of the text input engine before and after the key input when creating a text message in the wireless communication terminal and performs a key input process corresponding to the parameter change. Accordingly, an object of the present invention is to provide a wireless communication terminal having a high speed text message processing function and a method thereof for increasing the speed of text message processing.

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. Also, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

According to an aspect of the present invention, there is provided a wireless communication terminal, comprising: input means for receiving a key input signal such as a character or a cursor movement when writing a text message; Control means for comparing and analyzing parameter changes before and after key input as a key input signal is received through the input means, performing key input processing corresponding to the parameter change, and then outputting a key input result screen accordingly; And output means for outputting a key input result screen according to the control of the control means.

On the other hand, the method of the present invention, a text message fast processing method in a wireless communication terminal, an input step of receiving a key input signal, such as a character or cursor movement when creating a text message; A key input processing step of comparing and analyzing parameter changes before and after key input according to the received key input signal and performing key input processing corresponding to the parameter change; And an output step of outputting the key input processing result screen.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, whereby those skilled in the art may easily implement the technical idea of the present invention. There will be. In addition, in describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a configuration diagram of an embodiment of a wireless communication terminal having a text message fast processing function according to the present invention.

As shown in FIG. 2, the wireless communication terminal having a high speed text message processing function according to the present invention drives and controls a wireless transmission / reception apparatus 21 for transmitting and receiving signals wirelessly through an antenna and the wireless communication terminal. And a text input engine 29 for processing the key input signal received through the input device (keypad) 27 when the text message is written, and the text input engine 29 receives the key input signal. After comparing and analyzing the change of the parameters before and after the key input according to the key input processing corresponding to the change of the parameter, the central processing unit for outputting the key input result screen through the display device (LCD) 26 ( 22) under the control of the central processing unit 22, converts the signal received from the wireless transmitting and receiving device 21 into voice and outputs it to the voice output device (speaker) 25 Codec (23) for converting the voice received from the voice input device (microphone) 28 to a signal to be transmitted to the central processing unit 22 to be transmitted through the wireless transmission and reception device 21, A storage device 24 for storing a program for operating the wireless communication terminal and a file system (image, character, icon), etc., and a voice output device for outputting a voice received from the codec 23; Speaker) 25, a display device (LCD) 26 for outputting a screen (including a key input result screen) according to the control of the central processing unit 22, a telephone number, menu selection information, and text through a button Or an input device (keypad) 27 for receiving a key input signal such as a cursor movement, and a voice input device (microphone) 28 for receiving a voice and transmitting the same to the codec 13. do.

The character input engine 29 of the central processing unit 22 converts a key input signal received from a UI task into a Unicode, and stores it in a Unicode buffer, and stores the parameter change before and after key input. Compare and update the standard code buffer. At this time, the parameters before and after key input include the cursor position of the Unicode buffer, the length of the Unicode buffer, the cursor position of the standard code buffer, the length of the standard code buffer, the line index of the standard code buffer, and the display buffer. Cursor position, etc.

In addition, the character input engine 29 updates the standard code buffer by comparing and analyzing parameter changes before and after key input, instead of sequentially scanning the entire Unicode buffer to sequentially update the standard code buffer. Therefore, the amount of calculation required for input text processing is greatly reduced when the text message is written, thereby speeding up the response of the user key input. The configuration of the character input engine will be described in more detail with reference to FIG. 3.

3 is a detailed configuration diagram of an embodiment of a text input engine in a wireless communication terminal having a text message fast processing function according to the present invention.

As shown in FIG. 3, the text input engine 29 of the wireless communication terminal having a text message fast processing function according to the present invention includes a Unicode buffer 31, a standard code buffer 32, and a plurality of display buffers. (33).

The Unicode buffer 31 stores a Unicode text stream corresponding to a key input signal when a text message is written.

The standard code buffer 32 stores a national standard code text stream corresponding to the Unicode text stream stored in the Unicode buffer 31.

The plurality of display buffers 33 are provided as many as the number of lines included in the display device (LCD) 26, and each of the display buffers 33 for each line is configured to display the corresponding area to be displayed on the screen in the national standard code text stream. It stores text streams sorted line by line.

Referring to Figure 4 will be described in more detail with respect to the overall operating process of the present invention.

4 is a flowchart illustrating a text message fast processing method in a wireless communication terminal according to the present invention.

First, when the character input engine receives the key input signal through the input device (keypad) 27, the character input engine converts the received key input signal into the corresponding Unicode and stores it in the Unicode buffer 31 (401). At this time, the text input engine is a program for processing input text. As well as text messages prepared to date are stored in Unicode, information related to other text messages is stored in internal parameters.

In particular, when the key input signal received through the input device (keypad) 27 is a cursor movement signal, the Unicode buffer 31 is not updated, only the parameter is updated, and through the input device (keypad) 27 When the received key input signal is a delete signal, Unicode conversion is not performed, but the Unicode buffer 31 is updated and the parameters are updated.

Thereafter, the parameter before the key input and the parameter after the key input are compared and analyzed, and the standard code buffer 32 is updated according to the parameter change (402). That is, the parameter before the key input and the parameter after the key input are compared to determine whether the key input by the user is character input, character deletion, cursor movement, or the like. Then, the standard code buffer 32 is updated according to the determined input state. This process will be described later in more detail with reference to FIG. 5.

The index of each line is assigned to the standard code text stream stored in the standard code buffer 32 by referring to the length of the standard code buffer and the cursor position of the standard code buffer (403).

The region to be displayed on the screen among the standard code text streams stored in the standard code buffer 32 is arranged line by line in the display buffer 33 using the assigned line-by-line index (404).

Thereafter, the display buffer 33 is scanned for each line and output through the output device (LCD) 26 (405).

FIG. 5 is a diagram illustrating an embodiment of a parameter comparison analysis process before and after key input in a text message fast processing method in a wireless communication terminal according to the present invention.

As illustrated in FIG. 5, a state according to key input includes a Hangul character input, a Hangul character deletion, a cursor move right, a cursor move left, and a cursor position overwrite.

First, as a result of comparing and analyzing the parameters before and after the key input, if the current buffer length is 0 and the current cursor position is 0, there is no current message input.

If the current buffer length is increased by 1 (2 bytes) than the previous buffer length and the current cursor position is increased by 1 than the previous cursor position, the Korean character is input.

Also, if the current buffer length is increased by 1 (2 bytes) than the previous buffer length and the current cursor position is decreased by 1 than the previous cursor position, the Hangul character is deleted.

On the other hand, if the current buffer length is the same as the previous buffer length and the current cursor position is larger than the previous cursor position, the cursor has moved to the right.

In contrast, when the current buffer length is the same as the previous buffer length and the current cursor position is smaller than the previous cursor position, the cursor is moved to the left.

On the other hand, if the current multi-mode input state and the current cursor position is the same as the previous cursor position, and the current cursor position is greater than zero, the character is overwritten at the current cursor position. That is, you are selecting one of several letters ('a' and 'b' and 'c' or 'ㄱ' and 'ㅋ') assigned to one key.

In addition, when the current multi-mode input is terminated, the current cursor position is the same as the previous cursor position, and the current cursor position is larger than 0, the cursor must be moved to the right.

As described above, the character input engine according to the present invention classifies the state change before and after the key input by using a parameter capable of storing information before and after the key input, and forms a standard code text stream from the Unicode text stream based on this. After assigning the index for each line to the configured standard code text stream, the current cursor position is checked to align the standard code text stream of the area to be output to the display device (LCD) 26 in the display buffer 33. .

In this case, the parameter information of the character input engine before and after the key input may be compared and analyzed to align and store only the display buffer 33 of the corresponding line in which the change occurs, without aligning the entire display buffer 33. That is, as a result of comparing and analyzing the parameter information of the character input engine before and after key input, if the page up / down state is not, only the display buffer of the corresponding line (the line where the cursor is located or the lines before the line where the cursor is located) may be aligned. have.

On the other hand, when a user inputs a key at a high speed when creating a long message in a wireless communication terminal, the key is read from a key buffer in which the key input signal input from the input device (keypad) 27 is stored and processed. If a key input signal is continuously input from the user input device (keypad) 27 on the way, read / write occurs simultaneously in the interface task (UI task), causing a conflict. Therefore, in the present invention, in order to prevent a key input processing error (read / write conflict) that may occur when a user inputs a key at a high speed when writing a long message in a wireless communication terminal, a user interface task (UI Task) The UI task does not read the key from the input device (keypad) 27 when the key input signal received from the input device (keypad) 27 is transmitted to the character input engine 29. .

As described above, the present invention compares and analyzes the parameter change in the character input engine when converting Unicode into a national standard code (for example, KS code), and converts the corresponding Unicode into a national standard code according to the result. The standard code buffer 32 is updated. Thus, the amount of computation required for converting Unicode to national standard code is greatly reduced.

In addition, the present invention is a text for each line displayed with respect to the standard code text stream stored in the standard code buffer 32 in order to easily find only the text to be displayed on the screen, while using little resources of the wireless communication terminal After setting an interval to give an index, the cursor position is calculated at the time of key input, and the display buffer 33 of the corresponding line is updated according to the calculated cursor position.

In addition, the present invention provides a key in a UI task to prevent a key input processing error (read / write conflict) that may occur when a user inputs a key at an abnormally high speed when writing a long message. In the input processing, a stable key input processing is possible by introducing a buffer concept so that a key is not read from the input device (keypad) 27 to a UI task.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by the drawings.

 As described above, the present invention compares and analyzes the parameter change of the character input engine before and after key input at the time of text message creation in the wireless communication terminal, and greatly increases the text message processing speed by performing key input processing corresponding to the parameter change. It can be effective.

In addition, the present invention, by introducing a buffer concept so as not to read the key from the input device (keypad) to the user interface task (UI Task) during the key input processing in the user interface task (UI Task), stably processes the key input It can work.

Claims (10)

In a wireless communication terminal, Input means for receiving a key input signal such as text or cursor movement when composing a text message; Control means for comparing and analyzing parameter changes before and after key input as a key input signal is received through the input means, performing key input processing corresponding to the parameter change, and then outputting a key input result screen accordingly; And Output means for outputting a key input result screen according to the control of the control means Wireless communication terminal having a high speed text message processing function comprising a. The method of claim 1, The control means, First storage means for storing a Unicode text stream corresponding to a key input signal when composing a text message; Second storage means for storing a national standard code text stream corresponding to a Unicode text stream stored in said first storage means; And Third storage means for storing the national standard code text stream of the region to be displayed on the screen among the national standard code text streams stored in the second storage means, aligned line by line Wireless communication terminal having a high speed text message processing function comprising a. The method of claim 2, The control means, Converts the key input signal received through the input means into Unicode and stores it in the first storage means, and compares and analyzes parameter changes before and after the key input to update the second storage means, and the second storage means. And assigning a line-by-line index to the standard code text stream stored in the network, and storing the standard code text stream of the corresponding region to be displayed on the screen in line with the third storage means. Wireless communication terminal having. The method of claim 3, wherein The step of the control means to align the specific area of the standard code text stream stored in the second storage means with the third storage means, Comparing and analyzing parameter changes before and after key input, and storing the standard code text stream of the corresponding line in which the change is present in the region to be displayed on the screen in alignment with the third storage means. Wireless communication terminal. The method according to any one of claims 2 to 4, The parameter is Cursor position of the first storage means, length of the first storage means, cursor position of the second storage means, length of the second storage means, line index of the second storage means, and the third A wireless communication terminal having a text message fast processing function, comprising a cursor position of a storage means. In the high-speed text message processing method in a wireless communication terminal, An input step of receiving a key input signal such as a character or a cursor movement when composing a text message; A key input processing step of comparing and analyzing parameter changes before and after key input according to the received key input signal and performing key input processing corresponding to the parameter change; And An output step of outputting the key input processing result screen High speed text message processing method in a wireless communication terminal comprising a. The method of claim 6, The key input processing step, A Unicode storage step of converting and storing the received key input signal into a Unicode text stream; A standard code storing step of comparing and analyzing parameter changes before and after a key input and converting the converted Unicode text streams into national standard code text streams so as to correspond to the compared and analyzed parameter changes; And Display storage step of assigning the index for each line to the converted national standard code text stream, sorting and storing the standard code text stream of the corresponding area to be displayed on the screen by line High speed text message processing method in a wireless communication terminal comprising a. The method of claim 7, wherein The display storage step, A method for processing text messages in a wireless communication terminal, comprising comparing and analyzing parameter changes before and after key input and sorting and storing a standard code text stream of a corresponding line in which a change exists in an area to be displayed on a screen. The method according to claim 7 or 8, The output step, And a standard code text stream stored by sorting the lines and outputting the standard code text stream corresponding to each line of the display means. The method of claim 9, The input step, When the UI task transmits a key input signal such as a character or a cursor movement received from an input means to a character input engine, the UI task does not read a key from the input means. A text message fast processing method in a wireless communication terminal.

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