Patents by Inventor Travis D. Bishop

Travis D. Bishop 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).

  • Automatically replacing versions of a key database for secure boots
    Patent number: 11106798
    Abstract: A technique includes, in a first phase of a secure boot of a computer system, executing boot code of the computer system to access a first version of a secure boot key database to authenticate driver code. The first version of the secure boot key database stores a key corresponding to a plurality of drivers. The technique includes executing the boot code to automatically prepare the secure boot key database for a second phase of the secure boot in which operating system bootloader code is executed. Preparing for the second phase includes executing the boot code to automatically replace the first version of the secure boot key database with a second version of the secure boot key database, and the second version of the secure boot key database stores a key, which corresponds to the operating system bootloader code. The technique includes in the second phase of the secure boot, executing the boot code to access the secure boot key database to authenticate the operating system bootloader code.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: August 31, 2021
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Travis D. Bishop, Kevin G. Depew
  • AUTOMATICALLY REPLACING VERSIONS OF A KEY DATABASE FOR SECURE BOOTS
    Publication number: 20210232691
    Abstract: A technique includes, in a first phase of a secure boot of a computer system, executing boot code of the computer system to access a first version of a secure boot key database to authenticate driver code. The first version of the secure boot key database stores a key corresponding to a plurality of drivers. The technique includes executing the boot code to automatically prepare the secure boot key database for a second phase of the secure boot in which operating system bootloader code is executed. Preparing for the second phase includes executing the boot code to automatically replace the first version of the secure boot key database with a second version of the secure boot key database, and the second version of the secure boot key database stores a key, which corresponds to the operating system bootloader code. The technique includes in the second phase of the secure boot, executing the boot code to access the secure boot key database to authenticate the operating system bootloader code.
    Type: Application
    Filed: January 28, 2020
    Publication date: July 29, 2021
    Inventors: Travis D. Bishop, Kevin G. Depew
  • Time-interval-based system and method to determine if a device error rate equals or exceeds a threshold error rate
    Patent number: 7350007
    Abstract: An apparatus and method to determine if a device error rate equals or exceeds a threshold. In an apparatus embodiment, a system comprises a device, and an interrupt handler executable by a processor. The interrupt handler executes, upon expiration of a time period, to determine if a threshold error rate associated with the device has been equaled or exceeded.
    Type: Grant
    Filed: April 5, 2005
    Date of Patent: March 25, 2008
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kevin G. Depew, Travis D. Bishop