Patents by Inventor Simon P. CREASY

Simon P. CREASY 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).

  • Method and apparatus for performing a holdover function on a holdover line card
    Patent number: 10122525
    Abstract: Various embodiments relate to a network node and method thereof including a high stability oscillator and a holdover phase-locked loop (“PLL”) wherein the holdover PLL is configured to perform a holdover function by receiving a system clock signal, disciplining the high stability oscillator using the system clock signal to generate a local reference signal, and providing the local reference signal as the system clock signal when the system clock signal becomes unavailable.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: November 6, 2018
    Assignee: NOKIA OF AMERICA CORPORATION
    Inventors: Simon P. Creasy, Steven G. Driediger
  • METHOD AND APPARATUS FOR PERFORMING A HOLDOVER FUNCTION ON A HOLDOVER LINE CARD
    Publication number: 20180262324
    Abstract: Various embodiments relate to a network node and method thereof including a high stability oscillator and a holdover phase-locked loop (“PLL”) wherein the holdover PLL is configured to perform a holdover function by receiving a system clock signal, disciplining the high stability oscillator using the system clock signal to generate a local reference signal, and providing the local reference signal as the system clock signal when the system clock signal becomes unavailable.
    Type: Application
    Filed: March 10, 2017
    Publication date: September 13, 2018
    Inventors: Simon P. CREASY, Steven G. DRIEDIGER