Patents by Inventor Nai S Wong

Nai S Wong 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).

  • Method and apparatus for reducing rate determination errors and their artifacts
    Patent number: 7080009
    Abstract: The present invention provides a method and apparatus for improving the audio quality of a signal by reducing the effect of mis-determining the frame rate of a frame. The method includes the steps of determining that the frame rate of the current frame of information is eighth rate (324/340), determining that the previous frame was a full rate frame (334) and resetting the filter states of a speech decoder (336). The method further comprises the steps of utilizing alternative symbol error thresholds based on the number of consecutive frames with the same frame rate (308/328).
    Type: Grant
    Filed: January 23, 2001
    Date of Patent: July 18, 2006
    Assignee: Motorola, Inc.
    Inventors: Lee M Proctor, Mark D Hetherington, Nai S Wong, William K Morgan
  • Method and apparatus for reducing rate determination errors and their artifacts
    Publication number: 20030182108
    Abstract: The present invention provides a method and apparatus for improving the audio quality of a signal by reducing the effect of mis-determining the frame rate of a frame. The method includes the steps of determining that the frame rate of the current frame of information is eighth rate (324/340), determining that the previous frame was a full rate frame (334) and resetting the filter states of a speech decoder (336). The method further comprises the steps of utilizing alternative symbol error thresholds based on the number of consecutive frames with the same frame rate (308/328).
    Type: Application
    Filed: January 23, 2001
    Publication date: September 25, 2003
    Applicant: MOTOROLA, INC.
    Inventors: Lee M. Proctor, Mark D. Hetherington, Nai S. Wong, William K. Morgan