Patents by Inventor Cody Ravenscroft

Cody Ravenscroft 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).

  • ANALYZING ELECTRICAL RESPONSE TO DETECT UNAUTHORIZED ATTACHMENT
    Publication number: 20220335167
    Abstract: In various examples, detecting unauthorized attachment to a communication bus between first and second components according to the present disclosure may include: applying voltage to the communication bus between the first and second components; detecting, at the first or second component, a temporal response to the applied voltage; comparing the detected temporal response to a reference temporal response associated with the communication bus; and based on the comparing, detecting the unauthorized attachment to the communication bus.
    Type: Application
    Filed: October 28, 2019
    Publication date: October 20, 2022
    Inventors: Bartley Mark HIRST, Charles LOGAN, Cody RAVENSCROFT
  • Communications bus with isolation circuit to operate one circuit domain while another is deactive
    Patent number: 11449457
    Abstract: Aspects are directed to systems in which control node communicates through a peripheral-side wired communications bus for data communications with other bus-coupled nodes. The control node acts as a master with a main-circuit domain during an initialization mode and when the main-circuit domain is deactivated, and acts as a slave, after completion of the initialization mode and when the main-circuit domain is not deactivated. An isolation circuit is used to isolate the main-circuit domain from the control node and, while the main-circuit domain is deactivated, to facilitate communications over the peripheral-side wired communications bus between the control node and another node connected to the peripheral-side wired communications bus.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: September 20, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Bartley Mark Hirst, Cody Ravenscroft, Charles Logan
  • COMMUNICATIONS BUS WITH ISOLATION CIRCUIT TO OPERATE ONE CIRCUIT DOMAIN WHILE ANOTHER IS DEACTIVE
    Publication number: 20220147481
    Abstract: Aspects are directed to systems in which control node communicates through a peripheral-side wired communications bus for data communications with other bus-coupled nodes. The control node acts as a master with a main-circuit domain during an initialization mode and when the main-circuit domain is deactivated, and acts as a slave, after completion of the initialization mode and when the main-circuit domain is not deactivated. An isolation circuit is used to isolate the main-circuit domain from the control node and, while the main-circuit domain is deactivated, to facilitate communications over the peripheral-side wired communications bus between the control node and another node connected to the peripheral-side wired communications bus.
    Type: Application
    Filed: July 15, 2019
    Publication date: May 12, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Bartley Mark Hirst, Cody Ravenscroft, Charles Logan