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).
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Patent number: 11632080Abstract: 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: GrantFiled: November 15, 2021Date of Patent: April 18, 2023Assignee: Futurewei Technologies, Inc.Inventors: Michael L. Bushman, Charles J. Duey, James W. Caldwell
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Publication number: 20220286086Abstract: 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: ApplicationFiled: November 15, 2021Publication date: September 8, 2022Applicant: Futurewei Technologies, Inc.Inventors: Michael L. Bushman, Charles J. Duey, James W. Caldwell
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Patent number: 11190134Abstract: 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: GrantFiled: June 14, 2019Date of Patent: November 30, 2021Assignee: Futurewei Technologies, Inc.Inventors: Michael L. Bushman, Charles J. Duey, James W. Caldwell
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Publication number: 20190372523Abstract: 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: ApplicationFiled: June 14, 2019Publication date: December 5, 2019Applicant: Futurewei Technologies, Inc.Inventors: Michael L. Bushman, Charles J. Duey, James W. Caldwell
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Patent number: 10411647Abstract: 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: GrantFiled: October 5, 2017Date of Patent: September 10, 2019Assignee: Futurewei Technologies, Inc.Inventors: Michael L. Bushman, Charles J. Duey, James W. Caldwell
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Patent number: 10348242Abstract: 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: GrantFiled: October 5, 2017Date of Patent: July 9, 2019Assignee: Futurewei Technologies, Inc.Inventors: Michael L. Bushman, Charles J. Duey, James W. Caldwell
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Publication number: 20180034412Abstract: 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: ApplicationFiled: October 5, 2017Publication date: February 1, 2018Inventors: Michael L. Bushman, Charles J. Duey, James W. Caldwell
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Patent number: 9793855Abstract: 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: GrantFiled: August 2, 2016Date of Patent: October 17, 2017Assignee: Futurewei Technologies, Inc.Inventors: Michael L. Bushman, Charles J. Duey, James W. Caldwell
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Publication number: 20160344342Abstract: 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: ApplicationFiled: August 2, 2016Publication date: November 24, 2016Inventors: Michael L. Bushman, Charles J. Duey, James W. Caldwell
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Patent number: 9425737Abstract: 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: GrantFiled: March 16, 2015Date of Patent: August 23, 2016Assignee: Futurewei Technologies, Inc.Inventors: Michael L. Bushman, Charles J. Duey, James W. Caldwell
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Patent number: 6313961Abstract: 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: GrantFiled: January 5, 1996Date of Patent: November 6, 2001Assignee: Cirrus Logic, Inc.Inventors: Alan J. Armstrong, Renee E. Wallerius, Richard T. Behrens, Charles J. Duey