/ HYBRID KEYPAD/SPEECH RECOGNITION TECHNIQUE FOR ORIENTAL CHARACTERS IN ADVERSE ENVIRONMENTS

摘要

PURPOSE: A hybrid keyboard/speech identifying technology for east words in adverse circumstances is provided to input an oriental language such as Chinese with very high precision for a small-sized electronic device such as a PDA, a mobile telephone set, an electronic dictionary, and an electronic wristwatch having several key pads and/or a memory with small capacity. CONSTITUTION: To further solve the vagueness resulting from the vocalization of each multisyllabic Chinese word in isolated intonation syllables having vowels and consonants separated through automatic syllable recognition and the acoustic realization of Pinyin pronunciation as, for example, a consonant in adverse environment, the depression of one of specially designed key pads, for example, key pressing operation including the first phoneme of a syllable is done. If vagueness remains, the second or third Pinyin pronunciation of the syllable needs to be pressed. The key pads are designed on a data-initiative basis so that the ratio of similarity of phonemes of the respective key pads is minimized and the ratio of similarity of Pinyin pronunciation between keys is maximized.