Patents by Inventor Paul MacDougal

Paul MacDougal 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).

  • Raster operations unit with interleaving of read and write requests using PCI express
    Patent number: 8035647
    Abstract: A raster operations (ROP) unit interleaves read and write requests for efficiently communicating with a frame buffer via a PCI Express (PCI E) link or other system bus that provides separate upstream and downstream data transfer paths. One example of a ROP unit processes pixels in groups, performing read modify writeback sequences for each group. The read requests associated with pixels in a second group are advantageously interleaved with the writeback requests for pixels in the first group prior to sending the requests on the system bus.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: October 11, 2011
    Assignee: NVIDIA Corporation
    Inventors: Donald A. Bittel, Paul MacDougal, Manas Mandal, Colyn S. Case