Patents by Inventor John Randall Hershey

John Randall Hershey 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).

  • System and method for speech separation and multi-talker speech recognition
    Patent number: 7664643
    Abstract: A method, and a system to execute this method is being presented for the identification and separation of sources of an acoustic signal, which signal contains a mixture of multiple simultaneous component signals. The method represents the signal with multiple discrete state-variable sequences and combines acoustic and context level dynamics to achieve the source separation. The method identifies sources by discovering those frames of the signal whose features are dominated by single sources. The signal may be the simultaneous speech of multiple speakers.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: February 16, 2010
    Assignees: Nuance Communications, Inc.
    Inventors: Ramesh Ambat Gopinath, John Randall Hershey, Trausti Thor Kristjansson, Peder Andreas Olsen, Steven John Rennie
  • System and method for speech separation and multi-talker speech recognition
    Publication number: 20080052074
    Abstract: A method, and a system to execute this method is being presented for the identification and separation of sources of an acoustic signal, which signal contains a mixture of multiple simultaneous component signals. The method represents the signal with multiple discrete state-variable sequences and combines acoustic and context level dynamics to achieve the source separation. The method identifies sources by discovering those frames of the signal whose features are dominated by single sources. The signal may be the simultaneous speech of multiple speakers.
    Type: Application
    Filed: August 25, 2006
    Publication date: February 28, 2008
    Inventors: Ramesh Ambat Gopinath, John Randall Hershey, Trausti Thor Kristjansson, Peder Andreas Olsen, Steven John Rennie