Patents by Inventor William Mistretta

William Mistretta 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).

  • Model adaptation of neural tree networks and other fused models for speaker verification
    Patent number: 6519561
    Abstract: The model adaptation system of the present invention is a speaker verification system that embodies the capability to adapt models learned during the enrollment component to track aging of a user's voice. The system has the advantage of only requiring a single enrollment for the user. The model adaptation system and methods can be applied to several types of speaker recognition models including neural tree networks (NTN), Gaussian Mixture Models (GMMs), and dynamic time warping (DTW) or to multiple models (i.e., combinations of NTNs, GMMs and DTW). Moreover, the present invention can be applied to text-dependent or text-independent systems.
    Type: Grant
    Filed: November 3, 1998
    Date of Patent: February 11, 2003
    Assignee: T-Netix, Inc.
    Inventors: Kevin Farrell, William Mistretta