KR970008518B1 - Method of displaying korean alphabet input of telephone pad - Google Patents

Abstract

A method which input a hanguel by a key pad of a telephone is disclosed. In the method, when key data is applied to a microprocessor(3) by means of a key pad(1), the microprocessor(1) stores the key data in a memory(4) when the key data is a first row key value and it outputs an error when the key data is not the first row key value. When key data is again applied to a microprocessor(3) by means of a key pad(1), the microprocessor(3) checks the key data. When the key data is the first row key value, the microprocessor(3) compares a firstly current row key data with the previously first row key data. When the firstly current row key data is identical with the previously first row key data, the microprocessor(3) receive a key input, and when the firstly current row key data is different from the previously first row key data the microprocessor(3) stores the firstly current row key data in the memory(4).

Description

How to Display Korean Input on the Phone Keypad

1 is a block diagram of the Hangul input display control system of the telephone keypad of the present invention.

(A) of FIG. 2 is an explanatory diagram of the consonant processing of FIG.

(B) is an explanatory diagram of the vowel processing of FIG.

3 is a signal flow diagram for explaining the operation of FIG.

* Explanation of symbols for main parts of the drawings

1: Keypad of phone 2: Latch and buffer part

3: microprocessor 4: memory

5: LED array unit

The present invention relates to a Hangul input in a speech recognition and synthesis system, and more particularly to a Hangul input method of a telephone keypad for inputting Hangul using a keypad of a telephone when a Korean character is desired to be input in a computer without a keyboard.

In the conventional Hangul input display system, the microcomputer detects key data sequentially input from the keyboard, stores the data in the memory unit, reads the stored key data, and displays a series of characters or various forms on the monitor. There is a problem in that a computer that does not have a series of characters cannot be input, and that the microcomputer must process the characters by memorizing the key arrangement of the keyboard.

In view of the above-mentioned problems, the present invention provides a microprocessor that detects and stores them in the memory unit by pressing a key of a keypad according to the shape of a Korean by using a keypad of a telephone when inputting Korean in a computer without a keyboard. Read the stored key data is converted to hexacode, and converted to a value in Hangul code was created to display Hangul in the LED array unit, the present invention will be described in detail with reference to the accompanying drawings as follows.

1 is a block diagram of a Hangul input display control system of a telephone keypad according to the present invention. As shown in FIG. 1, a latch and a buffer unit 2 for latching and buffering key data input from a keypad 1 of a telephone is provided. And a microprocessor (3) for detecting the data output from the buffer unit (2), storing it in the memory unit (4), calculating and processing the stored data according to program execution, and controlling the system, and the telephone keypad (1). The LED array unit 5 is configured to correspond to the key array of and displays the key data calculated from the microprocessor 3 in Korean.

The operation and effects of the present invention configured as described above will be described with reference to FIGS. 2 and 3 in the accompanying drawings.

When the system is driven, the microprocessor 3 sends a control signal to the LED array unit 5 to activate only the first one of the LED array unit 5, and the other performs initialization. Then, when key data is input from the keypad 1 of the telephone, the microprocessor 3 detects this through the latch and buffer unit 2 to drive the LED array unit 5, and the detected key data is consonant in Korean. If the first column key is not the first column key, an error ERROR is displayed in the LED array unit 5, and if the first column key is used, the first column key data is displayed in the memory unit. After saving in (4), it waits for the next key data. Thereafter, when key data is input from the keypad 1 of the telephone through the latch and buffer unit 2, the microprocessor 3 detects this and checks whether the detected key data is the first column key. Comparing the first column key data stored in the memory unit 4 with the current first column key data, if it is equal, the key input is received from the keypad 1 again, and if it is not equal, the current first column key data is stored in the memory unit 4, and If it is not the first row key, the key data is stored in the memory unit 4 and the key input of the keypad 1 is accepted again. Thereafter, when key data is input from the keypad 1 through the latch and buffer unit 2, the microprocessor 3 detects this and checks whether the detected key data is the first column key. Key 3), if the key data other than the first column key data previously stored in the memory section 4 and the current key data are equal, the key input is received from the keypad 1 again. If the first column key (1, 2, 3 key) is pressed, that is, if the first column key is pressed twice, the microprocessor 3 stores all of the Korean consonants or vowels. Recognizing that it is finished, the entire key data values of Hangul, consonants, and vowels stored in the memory unit 4 are read and converted into HEXA codes of consonants and vowel characteristics. That is, the first key (keys 1, 2, 3) of keypad 1 of the telephone is BCD mode 1, the second key (keys 4, 5, 6) is BCD code 2 and the third key (keys 7, 8, 9). Is defined as BCD code 4, and the fourth column key (*, ψ, #) is defined as BCD code 8, and then added to convert to hexacode.

For example, if the first consonant "a" is pressed as in (a) of FIG. 2, that is, if the key of the keypad 1 is pressed 1,2,5, the third row key (3, 6, 9 # key) ) Is not pressed and hexadecimal code is ψ, and the 2nd row key (2,5,8, ψ key) is 2 and 5 key pressed, so 3H (1st row key 2 → 1, 2nd row key 5 → 2) The first row key (keys 1, 4, 7, and *) is 1H (first column key 1 → 1) because only the first key is pressed.

Thus, the consonant "a" (keys 1, 2, 5) is converted to the hexacode ψ31H. In addition, when the third consonant shape "b" is pressed as in (a) of FIG. 2, that is, when the 1,4,7, *, ψ, # keys of the keypad 1 are pressed, the third row key (3, 6,9, # key is 8H (fourth column key # → 8) with hexacode because only # is pressed, and the second row key is 8F (fourth open ψ → 8) with hexacode because only ψ is pressed. The first row key is hexadecimal because of the 1,4,7, * key being pressed. The first row key is FH (first row key 1 → 1, second row key 4 → 2, third row key 7 → 4, fourth row key * → 8 Sums up to hexacode "F").

Also, as shown in (b) of FIG. 2, when the first vowel “-” is pressed, that is, when the key of the keypad 1 is pressed 1, 7, 8, the third row key is not pressed. The second row key is 4H (third column key 8 → 4) because 8 is pressed, and the first row key is hexacode 5H (first column key 1 → 1, third column key 7 → 4) because 1 and 7 are pressed. do.

In this way, the consonants and vowels are recognized by converting 19 consonants and 22 vowels into hexacodes. In this case, 1,4,7,5,8 If this is detected, the microprocessor 3 receives the key inputs of 3, 6, and 9 again, stores them in the memory unit 4, and converts the stored key data values into hexacodes in the same manner as described above.

In this way, after converting the hexacode of consonant and vowel characteristics, the converted hexacode value is compared with the hexacode value defined in the memory unit 4 to recognize the Korean consonant or vowel, and the recognized one Korean consonant or Hexadecimal values of vowels are stored in the memory section 4, where vowels are continuous in the formula of vowel vowels If it is recognized, if "ㅣ" "ㅣ" is recognized continuously, it is displayed together with "" ㅣ "in the LED array unit 5, and the code value of the active and one Hangul vowel of the LED array unit 5 is displayed. When the first column key data is inputted from the keypad 1, the microprocessor 3 decompresses the next consonant, the entire Korean key consonant stored in the memory unit 4, in order to receive the key data of the vowel. Clear it, the current first Yeolki stores a data value in the memory unit (4). After that, when the first column key data is input from the keypad 1, the first column key data value previously stored in the memory unit 4 and the current first column key will be received. Comparing the data values, if it is equal, the Hangul consonants and hexacode values of the vowels are converted into Hangul code values and stored in the memory unit. If it is configured to check, the Hangul is displayed on the first LED array unit 5, on the contrary, if the Hangul shape is not configured and the LED array unit 5 is not active at the first, increase the active of the LED array unit 5 and In addition, since the LED array unit 5 is first active, and the vowels are consonants of the front end, the consonants of the front end are composed of the Hangul constitution of the second stage. LED display unit of the array 5, and the second LED array unit 5 is provided with Sikkim displays the current collection as well as to activate the LED array of the third section 5, thereby displaying the next Hangul consonant or vowel.

As described in detail above, the present invention has only 12 keyswitches configured on the keypad of a telephone when inputting Hangul in a computer system without a keyboard, so that keystrokes are inputted according to the shape of the Hangul. There are features that can be.

Claims (1)

In the Hangul input display method of the telephone keypad, the keypad (1), the latch and buffer unit (2), the microprocessor (3), the memory unit (4) and the LED array unit (5) comprising the keypad (1) When the key data is inputted from the microprocessor 3, the microprocessor 3 checks whether the key is the first column key or an error table. If the key data is the first column key, the microprocessor 3 stores the key value in the memory unit 4, and then again from the keypad 1 If key data is input, check the key value. If it is the first column key, compare the previous first column key value with the current first column key value, and if it is the same, accept the key input again. If it is not the same, save the current key value. Is stored in the memory unit 4, and the key input of the keypad 1 is accepted again, and then the key data input from the keypad 1 is not the first column key and the key value is the same as the previous key value. If not, the key value is stored, and if the first column key is used, the consonants and vowels are converted into 22 consonants and 19 vowels stored in the memory unit 4 to consonants and hexacodes of vowel characteristics. If is input, clear the entire consonant value of Hangul consonants and vowels, save the current first column key value, and compare it when the first column key is input again. If it is checked that the Hangul shape is composed of one Hangul consonant and the vowel code value, it is displayed on the LED array unit 5, and if the Hangul shape is not configured and the LED array unit 5 is first active and is a vowel The consonant of the front end is displayed on the first LED array unit 5, and the second LED array unit 5 displays the current vowel. Hangul input method for displaying a telephone keypad, a feature that.