Patents by Inventor Charles J. Duey

Charles J. Duey 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).

  • Patent number: 11632080
    Abstract: A voltage controlled oscillator includes a resonator and an amplifier. The resonator includes a capacitive element and an inductive element. The inductive element has a plurality of conductive segments forming a physical loop. The inductive element has electrical connections on the physical loop to the plurality of conductive segments forming at least one electrical loop disposed within an interior space formed by the physical loop. The amplifier has an input and an output, the input coupled to a first conductive segment forming a first impedance and the output coupled to a second conductive segment forming a second impedance.
    Type: Grant
    Filed: November 15, 2021
    Date of Patent: April 18, 2023
    Assignee: Futurewei Technologies, Inc.
    Inventors: Michael L. Bushman, Charles J. Duey, James W. Caldwell
  • Publication number: 20220286086
    Abstract: A voltage controlled oscillator includes a resonator and an amplifier. The resonator includes a capacitive element and an inductive element. The inductive element has a plurality of conductive segments forming a physical loop. The inductive element has electrical connections on the physical loop to the plurality of conductive segments forming at least one electrical loop disposed within an interior space formed by the physical loop. The amplifier has an input and an output, the input coupled to a first conductive segment forming a first impedance and the output coupled to a second conductive segment forming a second impedance.
    Type: Application
    Filed: November 15, 2021
    Publication date: September 8, 2022
    Applicant: Futurewei Technologies, Inc.
    Inventors: Michael L. Bushman, Charles J. Duey, James W. Caldwell
  • Patent number: 11190134
    Abstract: A voltage controlled oscillator includes a resonator and an amplifier. The resonator includes a capacitive element and an inductive element. The inductive element has a plurality of conductive segments forming a physical loop. The inductive element has electrical connections on the physical loop to the plurality of conductive segments forming at least one electrical loop disposed within an interior space formed by the physical loop. The amplifier has an input and an output, the input coupled to a first conductive segment forming a first impedance and the output coupled to a second conductive segment forming a second impedance.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: November 30, 2021
    Assignee: Futurewei Technologies, Inc.
    Inventors: Michael L. Bushman, Charles J. Duey, James W. Caldwell
  • Publication number: 20190372523
    Abstract: A voltage controlled oscillator includes a resonator and an amplifier. The resonator includes a capacitive element and an inductive element. The inductive element has a plurality of conductive segments forming a physical loop. The inductive element has electrical connections on the physical loop to the plurality of conductive segments forming at least one electrical loop disposed within an interior space formed by the physical loop. The amplifier has an input and an output, the input coupled to a first conductive segment forming a first impedance and the output coupled to a second conductive segment forming a second impedance.
    Type: Application
    Filed: June 14, 2019
    Publication date: December 5, 2019
    Applicant: Futurewei Technologies, Inc.
    Inventors: Michael L. Bushman, Charles J. Duey, James W. Caldwell
  • Patent number: 10411647
    Abstract: A voltage controlled oscillator includes a resonator and an amplifier. The resonator includes a capacitive element and an inductive element. The inductive element has a plurality of conductive segments forming a physical loop. The inductive element has electrical connections on the physical loop to the plurality of conductive segments forming at least one electrical loop disposed within an interior space formed by the physical loop. The amplifier has an input and an output, the input coupled to a first conductive segment forming a first impedance and the output coupled to a second conductive segment forming a second impedance.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: September 10, 2019
    Assignee: Futurewei Technologies, Inc.
    Inventors: Michael L. Bushman, Charles J. Duey, James W. Caldwell
  • Patent number: 10348242
    Abstract: A voltage controlled oscillator includes a resonator and an amplifier. The resonator includes a capacitive element and an inductive element. The inductive element has a plurality of conductive segments forming a physical loop. The inductive element has electrical connections on the physical loop to the plurality of conductive segments forming at least one electrical loop disposed within an interior space formed by the physical loop. The amplifier has an input and an output, the input coupled to a first conductive segment forming a first impedance and the output coupled to a second conductive segment forming a second impedance.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: July 9, 2019
    Assignee: Futurewei Technologies, Inc.
    Inventors: Michael L. Bushman, Charles J. Duey, James W. Caldwell
  • Publication number: 20180034412
    Abstract: A voltage controlled oscillator includes a resonator and an amplifier. The resonator includes a capacitive element and an inductive element. The inductive element has a plurality of conductive segments forming a physical loop. The inductive element has electrical connections on the physical loop to the plurality of conductive segments forming at least one electrical loop disposed within an interior space formed by the physical loop. The amplifier has an input and an output, the input coupled to a first conductive segment forming a first impedance and the output coupled to a second conductive segment forming a second impedance.
    Type: Application
    Filed: October 5, 2017
    Publication date: February 1, 2018
    Inventors: Michael L. Bushman, Charles J. Duey, James W. Caldwell
  • Patent number: 9793855
    Abstract: A voltage controlled oscillator includes a resonator and an amplifier. The resonator includes a capacitive element and an inductive element. The inductive element has a plurality of conductive segments forming a physical loop. The inductive element has electrical connections on the physical loop to the plurality of conductive segments forming at least one electrical loop disposed within an interior space formed by the physical loop. The amplifier has an input and an output, the input coupled to a first conductive segment forming a first impedance and the output coupled to a second conductive segment forming a second impedance.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: October 17, 2017
    Assignee: Futurewei Technologies, Inc.
    Inventors: Michael L. Bushman, Charles J. Duey, James W. Caldwell
  • Publication number: 20160344342
    Abstract: A voltage controlled oscillator includes a resonator and an amplifier. The resonator includes a capacitive element and an inductive element. The inductive element has a plurality of conductive segments forming a physical loop. The inductive element has electrical connections on the physical loop to the plurality of conductive segments forming at least one electrical loop disposed within an interior space formed by the physical loop. The amplifier has an input and an output, the input coupled to a first conductive segment forming a first impedance and the output coupled to a second conductive segment forming a second impedance.
    Type: Application
    Filed: August 2, 2016
    Publication date: November 24, 2016
    Inventors: Michael L. Bushman, Charles J. Duey, James W. Caldwell
  • Patent number: 9425737
    Abstract: A voltage controlled oscillator includes a resonator and an amplifier. The resonator includes a capacitive element and an inductive element. The inductive element has a plurality of conductive segments forming a physical loop. The inductive element has electrical connections on the physical loop to the plurality of conductive segments forming at least one electrical loop disposed within an interior space formed by the physical loop. The amplifier has an input and an output, the input coupled to a first conductive segment forming a first impedance and the output coupled to a second conductive segment forming a second impedance.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: August 23, 2016
    Assignee: Futurewei Technologies, Inc.
    Inventors: Michael L. Bushman, Charles J. Duey, James W. Caldwell
  • Patent number: 6313961
    Abstract: A method and apparatus for calibrating the components of a Partial Response Read Channel (PRML) integrated circuit utilized in a magnetic storage device including a channel quality circuit, incorporated within the read channel IC, for automatically measuring the performance of each component as data is read by the channel. An error measurement for each component is generated as an indicator of the component's performance, such as a sample error generated by measuring the difference between the samples read by the channel and expected samples. The read channel components are programmed over a range of settings to determine the settings that generate the minimum error. By programming the components with settings corresponding to minimum error rates, the read channel is optimized.
    Type: Grant
    Filed: January 5, 1996
    Date of Patent: November 6, 2001
    Assignee: Cirrus Logic, Inc.
    Inventors: Alan J. Armstrong, Renee E. Wallerius, Richard T. Behrens, Charles J. Duey