Patents by Inventor Michael E. BICHAN

Michael E. BICHAN 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).

  • Apparatus for reducing periodic jitter in a ring oscillator
    Patent number: 9300277
    Abstract: A method and apparatus for reducing jitter in a ring oscillator are described. In one embodiment, the apparatus comprises a first power supply node to provide power supply current; a ring oscillator, coupled to the first power supply node, to generate an oscillating output according to change in the power supply current provided to the ring oscillator; and a second power supply node; a circuit, coupled to the second power supply node, to replicate time-average (e.g., DC) behavior of the ring oscillator; and a feedback mechanism having inputs coupled to the first and second power supply nodes, and an output to control current in the circuit.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: March 29, 2016
    Assignee: Intel Corporation
    Inventors: Michael E. Bichan, Robert H. Wang
  • Apparatus for generating quadrature clock phases from a single-ended odd-stage ring oscillator
    Patent number: 9209821
    Abstract: Described is an apparatus which comprises: a ring oscillator having odd number of delay stages; and an interpolator to receive at least three phases from the ring oscillator, the interpolator to generate quadrature clock phases by interpolating the at least four phases.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: December 8, 2015
    Assignee: Intel Corporation
    Inventors: Michael E. Bichan, Jonathan E. Rogers
  • Apparatus for Generating Quadrature Clock Phases From a Single-Ended Odd-Stage Ring Oscillator
    Publication number: 20150214967
    Abstract: Described is an apparatus which comprises: a ring oscillator having odd number of delay stages; and an interpolator to receive at least three phases from the ring oscillator, the interpolator to generate quadrature clock phases by interpolating the at least four phases.
    Type: Application
    Filed: January 24, 2014
    Publication date: July 30, 2015
    Inventors: Michael E. BICHAN, Jonathan E. ROGERS
  • APPARATUS FOR REDUCING PERIODIC JITTER IN A RING OSCILLATOR
    Publication number: 20150171839
    Abstract: Described is an apparatus which comprises: a first power supply node to provide power supply current; a ring oscillator, coupled to the first power supply node, to generate an oscillating output according to change in the power supply current provided to the ring oscillator; and a second power supply node; a circuit, coupled to the second power supply node, to replicate time-average (e.g., DC) behavior of the ring oscillator; and a feedback mechanism having inputs coupled to the first and second power supply nodes, and an output to control current in the circuit.
    Type: Application
    Filed: December 17, 2013
    Publication date: June 18, 2015
    Inventors: Michael E. BICHAN, Robert H. WANG