Patents by Inventor Mark Atchison

Mark Atchison 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).

  • Electrically Disconnecting a Peripheral Device
    Publication number: 20070023499
    Abstract: If a USB device is turned off or is not active, the device may be electrically disconnected from a USB host controller. The device may be electrically disconnected through a physical interface on the device. In some embodiments, if the device becomes active during a wait period (e.g., 2-3 seconds) prior to electrically disconnecting the device, the device may not be electrically disconnected. In some embodiments, when the device is electrically disconnected from the USB host controller and no system activity of a bus mastering peripheral is occurring, the CPU may enter a low power state if other conditions are met. In some embodiments, if the USB device becomes active after electrically disconnecting, the electrical disconnection may be discontinued.
    Type: Application
    Filed: September 12, 2006
    Publication date: February 1, 2007
    Inventors: Henry Wurzburg, Tetsuo Yamamoto, Mark Atchison
  • Peripheral device feature allowing processors to enter a low power state
    Publication number: 20050156038
    Abstract: If a USB device is turned off or is not active, the device may be electrically disconnected from a USB host controller. The device may be electrically disconnected through a physical interface on the device. In some embodiments, if the device becomes active during a wait period (e.g., 2-3 seconds) prior to electrically disconnecting the device, the device may not be electrically disconnected. In some embodiments, when the device is electrically disconnected from the USB host controller and no system activity of a bus mastering peripheral is occurring, the CPU may enter a low power state if other conditions are met. In some embodiments, if the USB device becomes active after electrically disconnecting, the electrical disconnection may be discontinued.
    Type: Application
    Filed: January 20, 2004
    Publication date: July 21, 2005
    Inventors: Henry Wurzburg, Tetsuo Yamamoto, Mark Atchison