Patents by Inventor Benjamin Michael Lever

Benjamin Michael Lever 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 for tracking depths in a scanline based raster image processor
    Patent number: 7425955
    Abstract: A method of rendering a scan line of a graphic object image in a scan line renderer for spans of pixels laying between consecutive x-ordered edges intersecting the scan line includes maintaining a set of depths present in the rendering of the scan line, with the set being maintained in depth order. For each span, the set contains at least those depths that are active in the span, and the set is subject to removal of at least one depth at a subsequent span on the scan line where the corresponding depth is no longer active.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: September 16, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Timothy Merrick Long, Scott Bradley, Stephen Edward Ecob, Benjamin Michael Lever