Patents by Inventor Wasim Ullah

Wasim Ullah 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).

  • Wave guiding structures for crosstalk reduction
    Patent number: 8203395
    Abstract: Various apparatus and methods of addressing crosstalk in a circuit board are disclosed. In one aspect, a method of manufacturing is provided that includes forming a first layer of a circuit board with a first signal trace and forming a second layer of the circuit board with a second signal trace. A first guard trace is formed on the first layer and offset laterally from the first signal trace but at least partially overlapping the second signal trace and a second guard trace is formed on the second layer and offset laterally from the second signal trace but at least partially overlapping the first signal trace.
    Type: Grant
    Filed: August 17, 2009
    Date of Patent: June 19, 2012
    Assignee: ATI Technologies ULC
    Inventors: Fei Guo, Xiao Ling Shi, Mark Frankovitch, Wasim Ullah
  • Wave Guiding Structures for Crosstalk Reduction
    Publication number: 20110037528
    Abstract: Various apparatus and methods of addressing crosstalk in a circuit board are disclosed. In one aspect, a method of manufacturing is provided that includes forming a first layer of a circuit board with a first signal trace and forming a second layer of the circuit board with a second signal trace. A first guard trace is formed on the first layer and offset laterally from the first signal trace but at least partially overlapping the second signal trace and a second guard trace is formed on the second layer and offset laterally from the second signal trace but at least partially overlapping the first signal trace.
    Type: Application
    Filed: August 17, 2009
    Publication date: February 17, 2011
    Inventors: Fei Guo, Xiao Ling Shi, Mark Frankovitch, Wasim Ullah