Patents by Inventor Byron Yoshio Yafuso

Byron Yoshio Yafuso 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).

  • Distributed voice recognition system using acoustic feature vector modification
    Patent number: 7024359
    Abstract: A voice recognition system applies speaker-dependent modification functions to acoustic feature vectors prior to voice recognition pattern matching against a speaker-independent acoustic model. An adaptation engine matches a set of acoustic feature vectors X with an adaptation model to select a speaker-dependent feature vector modification function f( ), which is then applied to X to form a modified set of acoustic feature vectors f(X). Voice recognition is then performed by correlating the modified acoustic feature vectors f(X) with a speaker-independent acoustic model.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: April 4, 2006
    Assignee: Qualcomm Incorporated
    Inventors: Chienchung Chang, Naren Malayath, Byron Yoshio Yafuso
  • Distributed voice recognition system using acoustic feature vector modification
    Publication number: 20020103639
    Abstract: A voice recognition system applies speaker-dependent modification functions to acoustic feature vectors prior to voice recognition pattern matching against a speaker-independent acoustic model. An adaptation engine matches a set of acoustic feature vectors X with an adaptation model to select a speaker-dependent feature vector modification function f( ), which is then applied to X to form a modified set of acoustic feature vectors f(X). Voice recognition is then performed by correlating the modified acoustic feature vectors f(X) with a speaker-independent acoustic model.
    Type: Application
    Filed: January 31, 2001
    Publication date: August 1, 2002
    Inventors: Chienchung Chang, Naren Malayath, Byron Yoshio Yafuso