Patents by Inventor Youshi Xu

Youshi Xu 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 device for noise reduction
    Patent number: 6535254
    Abstract: A method of reducing noise in a video signal which includes a plurality of video frames being composed of a plurality of pixels, the method comprising the steps of: comparing video information contained in a current video frame and a plurality of temporally adjacent video frames; selecting from the current video frame and the adjacent video frames the video information that according to a predetermined condition is likely to be correct for the current video frame; and finally assigning the selected video information to the current video frame to thereby produce a video frame wherein noise has been reduced.
    Type: Grant
    Filed: April 6, 1998
    Date of Patent: March 18, 2003
    Assignee: Pinnacle Systems Inc.
    Inventors: Kent Olsson, Ting Ting Zhang, Youshi Xu, Roger Andersson