Patents by Inventor Carl F. Humphreys

Carl F. Humphreys 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).

  • Validating message-signaled interrupts by tracking interrupt vectors assigned to devices
    Patent number: 8631181
    Abstract: The disclosed embodiments provide a system that validates message-signaled interrupts. During operation, the system receives a message-signaled interrupt from a requesting device. This message-signaled interrupt includes an interrupt vector that identifies an interrupt, and is accompanied by an identification tag that identifies the source of the interrupt. The system uses the interrupt vector to access a stored tag from a tracking mechanism that associates source devices with their assigned interrupt vector(s). The system then compares the identification tag and the stored tag to validate the message-signaled interrupt.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: January 14, 2014
    Assignee: Oracle International Corporation
    Inventors: John R. Feehrer, Hugh R. Kurth, Carl F. Humphreys, David M. Kahn, John G. Johnson, Tayfun Kocaoglu, Gregory C. Onufer
  • VALIDATING MESSAGE-SIGNALED INTERRUPTS
    Publication number: 20130080673
    Abstract: The disclosed embodiments provide a system that validates message-signaled interrupts. During operation, the system receives a message-signaled interrupt from a requesting device. This message-signaled interrupt includes an interrupt vector that identifies an interrupt, and is accompanied by an identification tag that identifies the source of the interrupt. The system uses the interrupt vector to access a stored tag from a tracking mechanism that associates source devices with their assigned interrupt vector(s). The system then compares the identification tag and the stored tag to validate the message-signaled interrupt.
    Type: Application
    Filed: September 26, 2011
    Publication date: March 28, 2013
    Applicant: ORACLE INTERNATIONAL CORPORATION
    Inventors: John R. Feehrer, Hugh R. Kurth, Carl F. Humphreys, David M. Kahn, John G. Johnson, Tayfun Kocaoglu, Gregory C. Onufer