Patents by Inventor Alistair Williamson

Alistair Williamson 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).

  • Sonet/SDH signal recognition and selection
    Patent number: 5572515
    Abstract: System for automatic signal recognition and selection in a Synchronous Optical Network (Sonet) and Synchronous Digital Hierarchy (SDH) signal. The system automatically looks for signal location, signal rate, signal structure, signal payload mapping, and signal test patterns and displays the results in a matrix form. A user is allowed to select a specific channel within a specific structure, thereby setting the instrument's receiver.
    Type: Grant
    Filed: December 28, 1994
    Date of Patent: November 5, 1996
    Assignee: Tektronix, Inc.
    Inventors: Alistair Williamson, Robert J. Woolridge
  • Dispenser
    Patent number: D802714
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: November 14, 2017
    Assignee: Mast Group Limited
    Inventors: Alistair Williamson, Andrew Hodgin, Neil Warburton
  • Canister
    Patent number: D937564
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: December 7, 2021
    Assignee: MAST GROUP LIMITED
    Inventors: Alistair Williamson, Andrew Hodgin, Neil Warburton