Patents by Inventor William Duckwall

William Duckwall 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).

  • Publication number: 20050251601
    Abstract: An electronic system interconnect. The interconnect comprises a first node and a second node coupled to the first node. The interconnect is initially configured to include the first and second nodes. A third node is added to the interconnect after the interconnect is initially configured, and the first node responds to the addition of the third node by initiating a new connect handshake with the third node. The first node begins by transmitting a first signal to the third node. The first node signals that the third node has been added to the interconnect if the third node responds to the first signal by transmitting a second signal. The first node causes the interconnect to be reconfigured if the third node transmits a third signal in response to receiving the first signal.
    Type: Application
    Filed: July 18, 2005
    Publication date: November 10, 2005
    Inventors: William Duckwall, Michael Teener
  • Publication number: 20050114582
    Abstract: A method and apparatus for accelerating detection of speed code signals, and in particular S400 signals, for IEEE Standard 1394-1995 serial bus devices. The present invention validates S400 mode immediately after detecting an S400 speed signal, or immediately after detecting an S400 speed signal following a first S200 speed signal. The invention further provides S200 and S100 mode validation according to current implementations. Additionally, the invention does not require RX_DATA_PREFIX as a pre-requisite for signal detection.
    Type: Application
    Filed: December 21, 2004
    Publication date: May 26, 2005
    Inventor: William Duckwall
  • Patent number: 6266334
    Abstract: In a packet communication system having a node adapted for sending and receiving data packets at a first rate and at a second rate faster than said first rate, the communication system node characterized by sending an acknowledge packet to acknowledge receipt of a data packet, a method for optimizing the acknowledge packet data rate of the node comprising the step of sending acknowledge packets for data packets received at both the first rate and the second rate at the first rate.
    Type: Grant
    Filed: July 20, 1998
    Date of Patent: July 24, 2001
    Assignee: Zayante, Inc.
    Inventor: William Duckwall