Patent ID: 6594630
Filing Date: 2003-07-15
Classification: G10L

Abstract:
An apparatus for voice activated control of an electrical device, the apparatus comprising:receiving means for receiving at least one audio command generated by a user, the at least one audio command having a command word portion and a pause portion, each of the audio command portions being at least one syllable in length; speech recognition data having a command word portion and a pause portion, each of the speech recognition data portions being at least one syllable in length; speech recognition means including a Hidden Markov Model for comparing said command word portion and said pause portion of said at least one received audio command with said command word portion and said pause portion, respectively, of said speech recognition data, said speech recognition means generating at least one control signal based on said comparison, said speech recognition means prevents operation of the electrical device when the spectral content is dynamic; means for analyzing the pause portion of the received audio command for spectral content; and power control means for controlling power delivered to an electrical device, said power control means being responsive to said at least one control signal generated by said speech recognition means for operating the electrical device in response to said at least one audio command generated by the user.