Patents by Inventor Bruce A. Dautrich

Bruce A. Dautrich has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Speaker-trained speech recognizer having the capability of detecting confusingly similar vocabulary words
    Patent number: 4972485
    Abstract: During a training sequence, a speaker-trained speech recognizer detects and signals the speaker when vocabulary word pairs are potentially confusing to the recognizer. Each vocabulary word is converted into feature signals and then parameters representing a predetermined reference model of that word. The feature signals of a subsequent potential vocabulary word are compared against the reference model of each vocabulary word previously stored in the recognizer memory. The speaker is signaled when the potential vocabulary word is confusingly similar to one of the existing vocabulary words.
    Type: Grant
    Filed: May 23, 1989
    Date of Patent: November 20, 1990
    Assignee: AT&T Bell Laboratories
    Inventors: Bruce A. Dautrich, Thomas W. Goeddel, David B. Roe