Patents by Inventor Thomas E. Virgil

Thomas E. Virgil 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).

  • Virtual USB compound device enumeration
    Patent number: 8850082
    Abstract: A system for implementing a virtual Universal Serial Bus (USB) compound device with a simulated hub enables a single physical USB device, such as a USB peripheral device, to expose multiple stand-alone functions on the USB bus. Logical functions on the single physical USB device can be added and removed dynamically without re-enumerating the entire device and without affecting the state of other functions. Logical functions can also be independently implemented on any of a number of processors in a system that has access to the USB hardware. Each processor can enumerate as one or more USB devices via the virtual hub. Initialization of logical functions can be performed via the virtual USB hub to maintain a charging current level from a USB host in a device having a discharged battery.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: September 30, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Igor Malamant, Thomas E. Virgil
  • Virtual USB Compound Device for Discharged Battery Recovery
    Publication number: 20120054378
    Abstract: A system for implementing a virtual Universal Serial Bus (USB) compound device with a simulated hub enables a single physical USB device, such as a USB peripheral device, to expose multiple stand-alone functions on the USB bus. Logical functions on the single physical USB device can be added and removed dynamically without re-enumerating the entire device and without affecting the state of other functions. Logical functions can also be independently implemented on any of a number of processors in a system that has access to the USB hardware. Each processor can enumerate as one or more USB devices via the virtual hub. Initialization of logical functions can be performed via the virtual USB hub to maintain a charging current level from a USB host in a device having a discharged battery.
    Type: Application
    Filed: August 22, 2011
    Publication date: March 1, 2012
    Applicant: QUALCOMM INCORPORATED
    Inventors: Igor Malamant, Thomas E. Virgil