Patent ID: 6298324
Filing Date: 2001-10-02
Classification: G10L

Abstract:
A speech recognition system comprising:an application;a vocabulary accessible by the application, the vocabulary including a set of utterances applicable to the application;an active grammar containing a first subset of utterances from the vocabulary, the first subset comprising one or more keyword utterances, a plurality of non-keyword utterances, and a help command;a speech recognition engine to recognize the utterances in the active grammar;an operator interface to:(a) expand the active grammar to contain both the first subset of utterances and a second subset of utterances from the vocabulary in response to detection by the speech recognition engine of the keyword utterance, wherein the active grammar remains expanded until a non-keyword utterance is detected; and(b) verbally enunciate the utterances contained in the active grammar in response to recognition by the speech recognition engine of the help command.