Patents by Inventor Shuijun Lu

Shuijun Lu 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).

  • Graphic engine for fill style transferring in a resource-constrained device
    Patent number: 7142211
    Abstract: A method is provided for determining fill styles for pixels. A parameter “sum fill” is calculated for each pixel. Parameter sum fill is the sum of the difference between the right fill style and the left fill style of each edge that touches the bottom border of a pixel. A parameter “fa” is then calculated for each pixel. Parameter fa is the sum of the parameters sum fill of the current pixel and the preceding pixels. The fill style of a pixel that is untouched by any edges is set equal to the parameter fa of the adjacent pixel to its right.
    Type: Grant
    Filed: July 7, 2003
    Date of Patent: November 28, 2006
    Assignee: ArcSoft, Inc.
    Inventor: Shuijun Lu
  • Graphic engine for fill style transferring in a resource-constrained device
    Publication number: 20050007366
    Abstract: A method for determining fill styles for pixels in a scan line includes, for each edge in a first pixel, incrementing a first parameter (sum_fill) by a difference between a right fill style and a left fill style of the edge. In the method, the leftmost fill style in the scan line is set to null. The method further includes incrementing a second parameter (fa) by the first parameter of the first pixel and filling a second pixel devoid of edges with a first fill style equal to the second parameter.
    Type: Application
    Filed: July 7, 2003
    Publication date: January 13, 2005
    Inventor: Shuijun Lu