Patents by Inventor Steve Sung-Nam Chang

Steve Sung-Nam Chang 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).

  • Patent number: 7831427
    Abstract: Monitoring a spoken-word audio stream for a relevant concept is disclosed. A speech recognition engine may recognize a plurality of words from the audio stream. Function words that do not indicate content may be removed from the plurality of words. A concept may be determined from at least one word recognized from the audio stream. The concept may be determined via a morphological normalization of the plurality of words. The concept may be associated with a time related to when the at least one word was spoken. A relevance metric may be computed for the concept. Computing the relevance metric may include assessing the temporal frequency of the concept within the audio stream. The relevance metric for the concept may be based on respective confidence scores of the at least one word. The concept, time, and relevance metric may be displayed in a graphical display.
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: November 9, 2010
    Assignee: Microsoft Corporation
    Inventors: Stephen Frederick Potter, Tal Saraf, David Gareth Ollason, Steve Sung-Nam Chang
  • Publication number: 20080319750
    Abstract: Monitoring a spoken-word audio stream for a relevant concept is disclosed. A speech recognition engine may recognize a plurality of words from the audio stream. Function words that do not indicate content may be removed from the plurality of words. A concept may be determined from at least one word recognized from the audio stream. The concept may be determined via a morphological normalization of the plurality of words. The concept may be associated with a time related to when the at least one word was spoken. A relevance metric may be computed for the concept. Computing the relevance metric may include assessing the temporal frequency of the concept within the audio stream. The relevance metric for the concept may be based on respective confidence scores of the at least one word. The concept, time, and relevance metric may be displayed in a graphical display.
    Type: Application
    Filed: June 20, 2007
    Publication date: December 25, 2008
    Applicant: Microsoft Corporation
    Inventors: Stephen Frederick Potter, Tal Saraf, David Gareth Ollason, Steve Sung-Nam Chang