Patents by Inventor Chi M. Pham

Chi M. Pham 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).

  • Time multiplexed bidirectional bus
    Patent number: 7653770
    Abstract: A system for providing bidirectional communication for a data bus includes a datalink interface component configured to interface into a datalink. The datalink interface component is configured to operate in at least one of a first data communication state, a second data communication state, and a wholly inactive state. The first data communication state causes a first data communication component to communicate via the datalink interface and a second data communication component to be in an inactive state. The second data communication state causes the first data communication component to exist in an inactive state and the second communication component to communicate via the datalink interface. The wholly inactive state causes the first and second data communication components to exist in the inactive state.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: January 26, 2010
    Assignee: Xerox Corporation
    Inventor: Chi M. Pham
  • Time multiplexed bidirectional bus
    Publication number: 20080175274
    Abstract: A system for providing bidirectional communication for a data bus includes a datalink interface component configured to interface into a datalink. The datalink interface component is configured to operate in at least one of a first data communication state, a second data communication state, and a wholly inactive state. The first data communication state causes a first data communication component to communicate via the datalink interface and a second data communication component to be in an inactive state. The second data communication state causes the first data communication component to exist in an inactive state and the second communication component to communicate via the datalink interface. The wholly inactive state causes the first and second data communication components to exist in the inactive state.
    Type: Application
    Filed: January 18, 2007
    Publication date: July 24, 2008
    Inventor: Chi M. Pham
  • Method and apparatus for generating delays
    Patent number: 7362155
    Abstract: One embodiment pertains generally to a method of delaying based on a single clock signal. The method includes providing a first clock signal and generating a second clock signal based on the first clock signal and a third clock signal that is the inverse of the second clock signal. The method also includes generating a unit of delay based the first clock single and generating a half unit of delay based on the first and second clock signal.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: April 22, 2008
    Assignee: Xerox Corporation
    Inventor: Chi M. Pham