Patents by Inventor Steve O. Hadfield

Steve O. Hadfield 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: 6801205
    Abstract: A method for enabling reduced transport display in a computer image generator connected to a host simulator which receives real-time input. The first step is performing real-time matrices calculations with the real-time input. The next step is processing geometry for primitives in a scene and storing the primitives in a double-buffered geometry buffer. The geometry buffer toggles as soon as the geometry processing is done without waiting for a field sync signal which reduces the transport delay normally found in image generation systems. Another step is rendering the primitives into a pixel frame buffer as soon as the geometry buffer toggles. The final step is displaying the pixel frame buffer. The rendering hardware and geometry processing hardware can also include enough processing power to complete the geometric transformations and rendering and in less than one display frame.
    Type: Grant
    Filed: December 6, 2000
    Date of Patent: October 5, 2004
    Assignee: Evans & Sutherland Computer Corporation
    Inventors: Harold Dee Gardiner, Steve O. Hadfield
  • Publication number: 20020109697
    Abstract: A method for enabling reduced transport display in a computer image generator connected to a host simulator which receives real-time input. The first step is performing real-time matrices calculations with the real-time input. The next step is processing geometry for primitives in a scene and storing the primitives in a double-buffered geometry buffer. The geometry buffer toggles as soon as the geometry processing is done without waiting for a field sync signal which reduces the transport delay normally found in image generation systems. Another step is rendering the primitives into a pixel frame buffer as soon as the geometry buffer toggles. The final step is displaying the pixel frame buffer. The rendering hardware and geometry processing hardware can also include enough processing power to complete the geometric transformations and rendering and in less than one display frame.
    Type: Application
    Filed: December 6, 2000
    Publication date: August 15, 2002
    Inventors: Harold Dee Gardiner, Steve O. Hadfield