Patents by Inventor Frank E. Barrus

Frank E. Barrus 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: 7069279
    Abstract: A garbage collector, from time to time, and within a single cycle, determines objects that are eligible to have their associated memory freed; executes high-priority finalizers associated with such eligible objects as are determined; and after execution of a high-priority finalizer, deallocates the memory of the associated object. The garbage collector queues references to eligible objects that have non-high-priority finalizers in a list. After garbage collection is completed, a finalizer thread runs the queued non-high-priority finalizers and marks the associated objects as ready for deallocation. The garbage collector, during a subsequent cycle, then deallocates the memory associated with marked objects.
    Type: Grant
    Filed: November 4, 2002
    Date of Patent: June 27, 2006
    Assignee: SavaJe Technologies, Inc.
    Inventors: Lawrence R. Rau, Craig F. Newell, Frank E. Barrus
  • Patent number: 7002604
    Abstract: The invention method and system provides rotation of an image on a display screen. A graphics library translates on-screen coordinates from a base viewing mode to a desired alternate viewing mode. The translated coordinated are rendered directly to the display screen.
    Type: Grant
    Filed: November 4, 2002
    Date of Patent: February 21, 2006
    Assignee: SavaJe Technologies, Inc.
    Inventors: Frank E. Barrus, Lawrence R. Rau, Craig F. Newell
  • Patent number: 6981120
    Abstract: Memory and processing required for managing virtual memory segments is reduced by overloading the existing page table entries in a virtual memory page table to encode virtual memory segmentation data. Therefore, no additional data structures are required for virtual memory segment management. Virtual memory segmentation information is stored in the actual page table entries, using bits that are reserved as unused for the given computer architecture to identify the virtual memory segment management information.
    Type: Grant
    Filed: November 4, 2002
    Date of Patent: December 27, 2005
    Assignee: SavaJe Technologies, Inc.
    Inventors: Frank E. Barrus, Lawrence R. Rau, Craig F. Newell
  • Patent number: 6864899
    Abstract: A graphics sub-system manages a two-dimensional coordinate space which includes a plurality of rectangular regions. The two-dimensional coordinate space is represented by a hierarchical linked list of nodes. Each node represents a rectangular region of two-dimensional coordinate space. Each node acts as a bounding box for all descendant nodes in the hierarchical linked list of nodes.
    Type: Grant
    Filed: November 4, 2002
    Date of Patent: March 8, 2005
    Assignee: Savaje Technologies, Inc.
    Inventors: Frank E. Barrus, Lawrence R. Rau, Craig F. Newell