Patent ID: 8568045

Claim:
A language input system using a computer-implemented keypad or keyboard comprising: a first group of keys for inputting a consonant by pressing a single key or simultaneously pressing a combination of keys thereof; and a second group of keys for inputting a vowel by pressing a single key or simultaneously pressing a combination of keys thereof; wherein the first group of keys consists essentially of seven keys and is arranged on a first matrix of three rows and three columns, and the second group of keys consists essentially of seven keys and is arranged on a second matrix of three rows and three columns, wherein the first group of keys consists essentially of five Hangul simple consonant letters and two function key, wherein the five Hangul simple consonant letters are one velar consonant, one coronal consonant, one bilabial consonant, one sibilant consonant and one glottal consonant of Hangul simple consonant letters, and wherein the two function keys are for inputting other velar consonants, coronal consonants, bilabial consonants, sibilant consonants or glottal consonants of Hangul by simultaneously pressing one or two of the two function keys and one of the five Hangul simple consonant letters, wherein the two function keys are arranged on the second column of the first matrix, one of the two function keys occupying the second column and second row of the first matrix.