Patents by Inventor Paul Madeira

Paul Madeira 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).

  • Fully integrated differential LC PLL with switched capacitor loop filter
    Patent number: 8773184
    Abstract: A circuit comprising a loop filter, wherein the filter comprises an active integrator configured to generate one or more tuning signals, and a voltage-controlled oscillator (VCO) coupled to the loop filter and configured to generate a feedback signal based on the one or more tuning signals, wherein generating the one or more tuning signals is based on the feedback signal.
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: July 8, 2014
    Assignee: Futurewei Technologies, Inc.
    Inventors: Dmitry Petrov, Paul Madeira
  • CENTRAL LC PLL WITH INJECTION LOCKED RING PLL OR DELL PER LANE
    Publication number: 20120161827
    Abstract: A clock circuit includes a frequency or phase comparator for receiving a reference clock signal, an LC VCO coupled to the comparator, a feedback divider coupled between the LC VCO and the comparator, a clock distribution chain coupled to the feedback divider and the first VCO, and a DLL or injection-locked ring-VCO coupled to the clock distribution chain for providing a plurality of phased output clock signals.
    Type: Application
    Filed: December 27, 2011
    Publication date: June 28, 2012
    Applicant: STMicroelectronics (Canada) Inc.
    Inventors: Paul Madeira, John Hogeboom, Pat Hogeboom-Nivera