Patents by Inventor Thomas Wayne Studwell

Thomas Wayne Studwell 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).

  • Method and system for managing power in a system having an internal USB HUB
    Patent number: 6928562
    Abstract: A method and system for managing power in a computer system is disclosed. The computer system includes a host. The method and system include providing a Universal Serial Bus (USB) hub, at least one USB connector and attach/removal detection logic. The at least one USB connector is coupled with the USB hub. The attach/removal detection logic is coupled with the USB hub. The attach/removal detection logic determines whether a USB device is connected to the at least one USB connector, logically decouples the USB hub from the host if the USB device is not connected to the at least one USB connector and logically couples the USB hub to the host if the USB device is connected to the at least one USB connector.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: August 9, 2005
    Assignee: International Business Machines Corporation
    Inventors: Mark Evan Cohen, James Christopher Loebach, Carl Joseph Muti, Jr., Thomas Wayne Studwell, Osamu Yamamoto
  • Method and system for managing power in a system having an internal USB HUB
    Publication number: 20020138776
    Abstract: A method and system for managing power in a computer system is disclosed. The computer system includes a host. The method and system include providing a Universal Serial Bus (USB) hub, at least one USB connector and attach/removal detection logic. The at least one USB connector is coupled with the USB hub. The attach/removal detection logic is coupled with the USB hub. The attach/removal detection logic determines whether a USB device is connected to the at least one USB connector, logically decouples the USB hub from the host if the USB device is not connected to the at least one USB connector and logically couples the USB hub to the host if the USB device is connected to the at least one USB connector.
    Type: Application
    Filed: March 9, 2001
    Publication date: September 26, 2002
    Inventors: Mark Evan Cohen, James Christopher Loebach, Carl Joseph Muti, Thomas Wayne Studwell, Osamu Yamamoto