An interactive computer system having a processor executing a target computer program, and having a speech recognizer for converting an utterance into a command signal for the target computer program. The target computer program has a series of active program states occurring over a series of time periods....http://www.google.de/patents/US5664061?utm_source=gb-gplus-sharePatent US5664061 - Interactive computer system recognizing spoken commands
Interactive computer system recognizing spoken commands
