Patents by Inventor Gregory George Williams

Gregory George Williams 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).

  • Extended USB protocol with selective broadcast mechanism
    Patent number: 7831748
    Abstract: An extension to the Universal Serial Bus (USB) protocol that utilizes reserved bits in the OHCI Endpoint Descriptors to signal which root hub port(s) should transmit the data. Typically, all ports transmit (broadcast) data. The present invention encodes transmission information that can be used by the hardware to effectively control which port(s) need to be tri-stated. However, by setting, the “on” bits for all the ports, the present invention retains standard USB functionality. Also provided is a method to increase the bandwidth of low speed devices connected to the USB bus by increasing the data payload for such devices.
    Type: Grant
    Filed: August 10, 2004
    Date of Patent: November 9, 2010
    Assignee: Microsoft Corporation
    Inventors: Mitchell Stephen Dernis, Ankur Varma, Wei Guo, Eiko Junus, Gregory George Williams, Harjit Singh