Patents by Inventor Patrick John Donlin

Patrick John Donlin 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).

  • Failsoft system for multiple CPU system
    Patent number: 8078907
    Abstract: A cpu-set type multiprocessor system allows a cpu of a cpu-set that has a hardware exception to disable itself and notify the system. The system assigns processes of the cpu-set that include the problem cpu to another cpu-set. The disabling of the problem cpu and transfer of the related processes to another cpu-set allows the system to failsoft so that other cpu-sets the multiprocessor system can continue to run and a recovery of the processes being run on the problem cpu-set occurs.
    Type: Grant
    Filed: January 19, 2006
    Date of Patent: December 13, 2011
    Assignee: Silicon Graphics, Inc.
    Inventors: Patrick John Donlin, Samuel Edward Watters
  • Translation lookaside buffer checkpoint system
    Patent number: 7913057
    Abstract: A system that, at a process checkpoint, pauses the process to copy the system state for the process and then copies pages of the process in memory to disk storage while the process continues to run. When a write to a page by the process is to occur that requires a translation from a virtual address to a physical address the write is intercepted. The page that is being modified is duplicated and then the process is allowed to modify the page and continue. The duplicate page is then stored as part of the checkpoint copy.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: March 22, 2011
    Assignee: Graphics Properties Holdings, Inc.
    Inventors: Michael A. Raymond, Patrick John Donlin