KR19990059615A - Hangul Font Processing Method of Mobile Terminal - Google Patents

Abstract

The present invention relates to a Hangul font processing method of a mobile terminal capable of high-speed processing of Hangul characters by a character type and an output means selected by the Hangul font conversion module. The first step of inputting the Hangul selection code for determining authorization and the output selection code for determining the output means of the Hangul character code, and the character code input from the CPU are divided into bytes and the clock signal is generated by the clock generation unit. A second process of applying to the negative language, a third process of issuing an address corresponding to the Hangul character code from the address generator and outputting it to the ROM under the control of the main control unit, and a Korean font outputted from the third process according to the control of the main control unit 4th process of display and control signal applied from CPU to main-control part, and application from CPU to main-control part Has the effect that the data signal is made up of the fifth process of exchange through a data port, it can increase the letter processing speed can be simplified by a complex symbol conversion circuit for Hangul font conversion module.

Description

Hangul Font Processing Method of Mobile Terminal

The present invention relates to a Hangul font processing method of a mobile terminal, and more particularly, by using the Hangul font conversion module, a Hangul font processing method of a mobile terminal capable of high-speed processing of Hangul characters by the character type and output means selected by the user. It is about.

In general, when implementing characters such as Hangul, Hanja, and special characters, the complete code or combined code system is used. To support both the complete code and the combined code system, a complete font ROM and a combined font ROM should be provided. In order to reduce the size, only a combination font ROM is provided, and when the completion type code is supported, the completion type code is converted into the combination code to output the font of the combination font ROM.

A conventional character processing apparatus includes a system memory 10, a video graphics memory 11, a graphics controller 20, a font controller 30, a font ROM 40, and a display unit 50 as shown in FIG. do. When the character key is input through the keyboard of the personal computer, the Hangul driver program of the CPU distinguishes the combination type or the completion type to apply the corresponding character code to the font ROM 40, and if the combination type is applied to the font controller 30, In the case of the completed type, the code conversion table stored in the memory or the mask ROM is accessed to read the combined type code corresponding to the completed type code and apply it to the font controller 30. The font controller 30 generates an address corresponding to the combined code applied from the CPU, outputs the address to the font ROM 40, reads the combined font of the font ROM 40 in letter units, and combines them in units of characters. Output At this time, when the CPU outputs the font data received from the font ROM 40 through the font controller 30 to the graphic controller 20, the graphic controller 20 outputs the font data from the CPU to the video graphics memory 11. Is recorded on the display unit 50 and is output to the display unit 50 by graphic processing.

The font controller 30 described above includes a buffer unit 31, a latch / register unit 32, a control unit 33, a font address generator 34, and a font combination unit 35 as shown in FIG. 2. Is done. The buffer unit 31 receives the control signal from the CPU, receives the combined character code from the CPU through the system bus, and delivers the combined character code to the latch / register unit 32 to supply the character unit from the font combination unit 35 in character units. Fonts are output to the CPU side via the system bus.

The latch / register unit 32 stores the combined character code supplied from the buffer unit 31 and outputs the combined character code to the font address generator 34. The control unit 33 stores the combined type code stored in the latch / register unit 32. The operations of the font address generator 34 and font combination unit 35 are controlled in accordance with the contents of the character code. The font address generation unit 34 issues an address corresponding to the combined character code from the latch / register unit 32 under the control of the control unit 33 and outputs the address to the font ROM 40 side so that the font ROM 40 Outputs the combined font of the address. The font combination unit 35 combines the combination font supplied from the font ROM 40 in letter units in units of characters under the control of the controller 33, and outputs the combined fonts to the CPU through the buffer unit 31.

However, the conventional character processing apparatus requires a large memory space in the case of a large number of characters, such as a Korean font, and more memory area is required especially when a plurality of character sizes are provided. For example, a character font consisting of one character in 16 × 16 dot format requires 32 bytes per character, and in case of different character sizes, for example, a character font consisting of 48 × 48 dot format is 1 megabyte in size. The above memory area is required. Therefore, there is a problem that the character processing speed decreases and the number of semiconductors increases due to the large memory area.

In addition, if the order of the most significant bit and the least significant bit is reversed when output to the monitor, the program can not execute the operation properly or reprocess the read data to change the order of the most significant bit and least significant bit in the program. There is a problem that causes degradation and complexity of the program.

Therefore, the present invention has been made to solve such a problem, an object of the present invention is to input the Hangul selection code specifying the shape of the Hangul font to the Hangul font conversion module and input the output selection code specifying the output means to the user The present invention provides a method for processing a Korean font of a mobile terminal capable of high-speed processing of Korean characters in a desired character form and output means.

Another object of the present invention is to avoid the Hangul font processing method using a complex character conversion circuit, and to provide a Hangul font processing method of a mobile terminal that can easily process characters using the Hangul font conversion module.

In order to achieve the above object, the present invention provides a Hangul selection code for determining whether a Hangul character code to be output is a complete type code or a combination type code in the Hangul font processing for receiving a control signal and a character code from a CPU. And a second step of inputting an output selection code for determining an output means of the Hangul character code, and a second step of dividing the character code input from the CPU by byte and applying a clock signal to the main control part every one byte by the clock generator. A third process of issuing an address corresponding to the Hangul character code from the address generator and outputting the address to the ROM, and a fourth process of displaying the Hangul font output from the third process under the control of the main control unit; The control signal applied from the CPU to the main controller and the data signal from the main controller to the CPU It is characterized by being a fifth step of interchange.

1 is a block diagram of a conventional character conversion apparatus.

FIG. 2 is a block diagram of the font controller shown in FIG. 1; FIG.

Figure 3 is a block diagram showing the internal configuration of the Hangul font processing method of a mobile terminal according to the present invention.

Figure 4 is a flow chart for explaining the overall operation of the Hangul font processing method of a mobile terminal according to the present invention.

<Explanation of symbols for the main parts of the drawings>

100: main control unit 110: input unit

110a: Hangul selection code 110b: Output selection code

120: clock generator 130: address generator

140: ROM 140a: Combination data ROM

140b: Complete data ROM 140c: Combination font ROM

150: data port

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 3 is a block diagram illustrating an internal configuration of a Hangul font processing method of a mobile terminal according to the present invention. As shown in FIG. 3, a main control unit 100, an input unit 110, and a clock generator 120 are illustrated. And an address generator 130, a ROM 140, and a data port 150.

An input unit 110 and a clock generator 120 are connected to an input terminal of the main control unit 100. The input unit 110 includes a Hangul selection code 110a and an output unit for determining a Hangul character form by a user's selection. And an output selection code 110b for determining. For example, if the Korean character type is a combination type code, the Korean code "0" is input. If the Korean character type is a completion type code, the Korean code "1" is input.

The clock generator 120 generates a periodic signal used for synchronization. The clock generator 120 divides a character code input from the CPU into bytes and applies a clock signal to the main controller 100 every 1 byte. To induce the character recognition byte by byte.

The address generator 130 generates an address for designating a location of the Hangul font stored in the ROM 140. The address corresponding to the Hangul selection code selected by the input unit 110 under the control of the main controller 100 is generated. Is issued and output to the ROM 140 side.

The ROM 140 stores a Korean character code table, and includes a combination data ROM 140a in which a combination code table is stored, a completion data ROM 140b in which a completion code table is stored, and a combination font ROM 140c. In response to the address output from the address generator 130, a font corresponding to the input address is output to the main controller 100.

The data port 150 is interconnected to the CPU and the main controller 100, and has a function of exchanging a control signal applied from the CPU to the main controller 100 and a data signal applied from the main controller 100 to the CPU. Perform.

Hereinafter, the operation of the present invention having the above configuration will be described in detail with reference to FIG.

4 is a flowchart illustrating the overall operation of the Hangul font processing method of the mobile terminal according to the present invention, it is assumed that the Hangul character form has a combination code and the completion type code, and the output means of the Hangul character has an LCD and LED .

The user selects the Korean character form from among the combination type code and the complete type code, and inputs the Korean character output means into one of the LCD and the LED into the main control unit 100. That is, if you want to select a combination type code, enter "0" in the Hangul selection code 110a. If you want to select a completed type code, enter "1" in the Hangul selection code 110a. Also, if the output character is to be displayed on the LCD, "0" is input to the output selection code 110b, and if the output character is to be displayed on the LED, "1" is input to the output selection code 110b (step 402).

When the Hangul character code input by the user's selection from the CPU is transmitted to the main control unit 100 through the data port 150 (step 404), the clock generator 120 clocks by one byte to distinguish the Hangul character codes. (Step 406). The main control unit 100 determines whether the input Hangul character form is a combination type code or a completion type code, and transmits the Hangul character code to the address generator 130, and the address generator 130 transmits the address of the transmitted Hangul character code. (Step 408).

If the Hangul character type selected by the user is a combined type code (step 410), the address generated by the address generator 130 is connected to the combined data ROM 140a to output the corresponding data (step 412), and the Hangul character type selected by the user is selected. If is the complete code (step 414), the address generated by the address generator 130 is connected to the complete data ROM (140b) to output the corresponding data (step 416).

In addition, the main control unit 100 determines whether the output selection code 110b input by the user's selection is "0" or "1" (step 418), and if the output selection code 110b is "0", the LCD is displayed. If the output selection code 110b is " 1 &quot; (step 422), the Korean character is output to the LED (step 424).

According to the Hangul font processing method of the mobile terminal according to the present invention as described above, inputting the Hangul selection code for specifying the type of the Hangul characters into the Hangul font conversion module without performing the character conversion to the logic circuit to specify the output means By inputting the output selection code and outputting the Hangul characters by the user's desired character form and output means, it is possible to increase the character processing speed and simplify the complicated character conversion circuit by the Hangul font conversion module.

Claims (3)

In conversion of Korean font that receives control signal and character code from CPU and outputs Korean characters, A first step of inputting a Hangul selection code 110a for determining whether the Hangul character code to be output is a complete type code or a combination type code and an output selection code 110b for determining the output means of the Hangul character code; A second process of inputting a character code input from the CPU into the main control unit 100 by 1 byte according to a signal applied from the clock generator 120; A third process of processing the character code into a combination string or a complete character according to the inputted Hangul selection code; A fourth process of outputting the characters processed in the combined type or completed type in a vertical priority or a horizontal priority on a display device according to the output selection code; And a fifth process of outputting a signal to receive data from the main control unit (100) to the CPU. The method of claim 1, wherein the third process comprises receiving data of a font area from information of a combined data area on a ROM 140a when the character code is determined to be a combined type from a Hangul character code, and ROM 140b if determined to be completed. And a font area data is inputted from the information of the completed data area of the image to the information of the combined data area corresponding thereto. The method of claim 1, wherein the fourth process sequentially outputs the text processed information to the main control unit 100 when the output selection code is horizontally preferential, and rearranges and outputs the text processed information in the vertically preferred fashion. Hangul font processing method of a mobile terminal characterized in that.