A speech understanding system includes a language model comprising a combination of an N-gram language model and a context-free grammar language model. The language model stores information related to words and semantic information to be recognized. A module is adapted to receive input from a user and...http://www.google.com.hk/patents/US7200559?utm_source=gb-gplus-share專利 US7200559 - Semantic object synchronous understanding implemented with speech application language tags
