Patents by Inventor Bradley David Farnsworth
Bradley David Farnsworth 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: 11804871Abstract: Aspects of the present disclosure describe a system and method for synchronizing time, frequency, and phase among a plurality of devices.Type: GrantFiled: May 17, 2022Date of Patent: October 31, 2023Assignee: ENSCO, Inc.Inventors: Daniel Thomas Goff, William Todd Faulkner, Robert Barlow Alwood, Bradley David Farnsworth, Edward Joseph Kreinar, David W. A. Taylor, Jr.
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Publication number: 20220294488Abstract: Aspects of the present disclosure describe a system and method for synchronizing time, frequency, and phase among a plurality of devices.Type: ApplicationFiled: May 17, 2022Publication date: September 15, 2022Inventors: Daniel Thomas GOFF, William Todd FAULKNER, Robert Barlow ALWOOD, Bradley David FARNSWORTH, Edward Joseph KREINAR, David W. A. TAYLOR, JR.
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Patent number: 11368183Abstract: Aspects of the present disclosure describe a system and method for synchronizing time, frequency, and phase among a plurality of devices.Type: GrantFiled: June 22, 2020Date of Patent: June 21, 2022Assignee: ENSCO, Inc.Inventors: Daniel Thomas Goff, William Todd Faulkner, Robert Barlow Alwood, Bradley David Farnsworth, Edward Joseph Kreinar, David W. A. Taylor, Jr.
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Publication number: 20200403652Abstract: Aspects of the present disclosure describe a system and method for synchronizing time, frequency, and phase among a plurality of devices.Type: ApplicationFiled: June 22, 2020Publication date: December 24, 2020Inventors: Daniel Thomas GOFF, William Todd FAULKNER, Robert Barlow ALWOOD, Bradley David FARNSWORTH, Edward Joseph KREINAR, David W. A. TAYLOR, JR.
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Patent number: 10094908Abstract: A geolocation system includes an originator device configured to transmit a first wireless signal to a transponder device. The transponder device is configured to transmit a second wireless signal to the originator device. The system includes at least one observer device configured to receive the first wireless signal from the originator device and receive the second wireless signal from the transponder device. The system also includes a first processor configured to calculate a transactional difference range at the at least one observer device based on the first wireless signal received at the observer device and the second wireless signal received at the observer device. A corrected transactional difference range value may be calculated by subtracting a time-of-flight of the first wireless signal from the originator device to the transponder device from the transactional difference range. A method of performing geolocation using a transactional difference range is also disclosed.Type: GrantFiled: May 2, 2017Date of Patent: October 9, 2018Assignee: ENSCO, INC.Inventors: David W. A. Taylor, Jr., Bradley David Farnsworth, William Todd Faulkner
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Patent number: 9829574Abstract: Systems and methods for performing distance and velocity measurements, such as by using carrier signals, are disclosed. A measurement system device may include a first antenna configured to receive a first signal from a transmitting device, the first signal having a carrier frequency, and a second antenna configured to receive the first signal from the transmitting device. The measurement system device may also include a processor configured to determine a first differential distance between the first antenna and the second antenna from the transmitting device and to determine a rate of change of the first differential distance. The processor may also be configured to estimate a geometry of the measurement system device relative to the transmitting device using the rate of change of the first differential distance.Type: GrantFiled: June 2, 2014Date of Patent: November 28, 2017Assignee: ENSCO, INC.Inventors: David W. A. Taylor, Jr., Bradley David Farnsworth, Edward Joseph Kreinar
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Patent number: 9766322Abstract: A geolocation system includes an originator device configured to transmit a first wireless signal to a transponder device. The transponder device is configured to transmit a second wireless signal to the originator device. The system includes at least one observer device configured to receive the first wireless signal from the originator device and receive the second wireless signal from the transponder device. The system also includes a first processor configured to calculate a transactional difference range at the at least one observer device based on the first wireless signal received at the observer device and the second wireless signal received at the observer device. A corrected transactional difference range value may be calculated by subtracting a time-of-flight of the first wireless signal from the originator device to the transponder device from the transactional difference range. A method of performing geolocation using a transactional difference range is also disclosed.Type: GrantFiled: March 14, 2013Date of Patent: September 19, 2017Assignee: ENSCO, INC.Inventors: David W. A. Taylor, Jr., Bradley David Farnsworth, William Todd Faulkner
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Publication number: 20170234965Abstract: A geolocation system includes an originator device configured to transmit a first wireless signal to a transponder device. The transponder device is configured to transmit a second wireless signal to the originator device. The system includes at least one observer device configured to receive the first wireless signal from the originator device and receive the second wireless signal from the transponder device. The system also includes a first processor configured to calculate a transactional difference range at the at least one observer device based on the first wireless signal received at the observer device and the second wireless signal received at the observer device. A corrected transactional difference range value may be calculated by subtracting a time-of-flight of the first wireless signal from the originator device to the transponder device from the transactional difference range. A method of performing geolocation using a transactional difference range is also disclosed.Type: ApplicationFiled: May 2, 2017Publication date: August 17, 2017Applicant: ENSCO, Inc.Inventors: DAVID W. A. TAYLOR, JR., Bradley David Farnsworth, William Todd Faulkner
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Patent number: 9612325Abstract: Systems and methods for performing distance and velocity measurements, such as by using carrier signals, are disclosed. A measurement method may include transmitting a first signal from an originator device to a transponder device and determining a carrier phase of the first signal at the transponder device. The measurement method may also include transmitting a second signal from the transponder device to the originator device and determining a carrier phase of the second signal at the originator device. The measurement method may include estimating a relative distance between the originator device and the transponder device using the carrier phase of the first carrier signal, the carrier phase of the second carrier signal. The method may also include estimating the relative distance using a frequency difference. The method may include using an adjusted relative distance to determine a total distance between the originator device and the transponder device.Type: GrantFiled: June 2, 2014Date of Patent: April 4, 2017Assignee: ENSCO, INC.Inventors: David W. A. Taylor, Jr., Bradley David Farnsworth, Edward Joseph Kreinar
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Patent number: 9271258Abstract: Systems and methods for performing distance and velocity measurements, such as by using carrier signals, are disclosed. A measurement method may include transmitting a first signal from an originator device to a transponder device, the first signal having a first carrier frequency; and determining a carrier phase of the first signal at the transponder device. The method may include transmitting a second signal from the transponder device to the originator device, the second signal having a second carrier frequency; and determining a carrier phase of the second signal at the originator device. The method may include estimating a distance between the originator device and the transponder device using the carrier phase of the first carrier signal and the carrier phase of the second carrier signal. The method may include estimating the distance between the originator device and the transponder device using a frequency difference between the first carrier frequency and the second carrier frequency.Type: GrantFiled: June 2, 2014Date of Patent: February 23, 2016Assignee: ENSCO, INC.Inventors: David W. A. Taylor, Jr., Bradley David Farnsworth, Edward Joseph Kreinar
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Publication number: 20150346349Abstract: Systems and methods for performing distance and velocity measurements, such as by using carrier signals, are disclosed. A measurement system device may include a first antenna configured to receive a first signal from a transmitting device, the first signal having a carrier frequency, and a second antenna configured to receive the first signal from the transmitting device. The measurement system device may also include a processor configured to determine a first differential distance between the first antenna and the second antenna from the transmitting device and to determine a rate of change of the first differential distance. The processor may also be configured to estimate a geometry of the measurement system device relative to the transmitting device using the rate of change of the first differential distance.Type: ApplicationFiled: June 2, 2014Publication date: December 3, 2015Inventors: David W.A. TAYLOR, JR., Bradley David Farnsworth, Edward Joseph Kreinar
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Publication number: 20150351067Abstract: Systems and methods for performing distance and velocity measurements, such as by using carrier signals, are disclosed. A measurement method may include transmitting a first signal from an originator device to a transponder device, the first signal having a first carrier frequency; and determining a carrier phase of the first signal at the transponder device. The method may include transmitting a second signal from the transponder device to the originator device, the second signal having a second carrier frequency; and determining a carrier phase of the second signal at the originator device. The method may include estimating a distance between the originator device and the transponder device using the carrier phase of the first carrier signal and the carrier phase of the second carrier signal. The method may include estimating the distance between the originator device and the transponder device using a frequency difference between the first carrier frequency and the second carrier frequency.Type: ApplicationFiled: June 2, 2014Publication date: December 3, 2015Inventors: David W.A. TAYLOR, JR., Bradley David FARNSWORTH, Edward Joseph KREINAR
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Publication number: 20150346332Abstract: Systems and methods for performing distance and velocity measurements, such as by using carrier signals, are disclosed. A measurement method may include transmitting a first signal from an originator device to a transponder device and determining a carrier phase of the first signal at the transponder device. The measurement method may also include transmitting a second signal from the transponder device to the originator device and determining a carrier phase of the second signal at the originator device. The measurement method may include estimating a relative distance between the originator device and the transponder device using the carrier phase of the first carrier signal, the carrier phase of the second carrier signal. The method may also include estimating the relative distance using a frequency difference. The method may include using an adjusted relative distance to determine a total distance between the originator device and the transponder device.Type: ApplicationFiled: June 2, 2014Publication date: December 3, 2015Inventors: David W.A. TAYLOR, JR., Bradley David Farnsworth, Edward Joseph Kreinar
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Patent number: 9140557Abstract: A system and method for estimating the position of an object, such as a person, animal, or machine. The system includes first and second inertial measurement units, a first and second originator antennas, and a first and second transponder antennas. The system uses data from the inertial measurement units to estimate a position of the object. The system also calculates a range measurement between the first originator antenna and first transponder antenna. The system calculates a first CPD measurement between the second transponder antenna and the first originator antenna, and a second CPD measurement between the second originator antenna and the first transponder antenna. The range measurement and at least one CPD measurement are used to update a Kalman filter for estimating the position of the object. The system determines also updates the Kalman filter when one of the inertial measurement units is in a zero-velocity condition.Type: GrantFiled: December 16, 2013Date of Patent: September 22, 2015Assignee: ENSCO, INC.Inventors: David W. A. Taylor, Jr., Bradley David Farnsworth, William Todd Faulkner, Christopher Matthew Foster, Robert Barlow Alwood
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Patent number: 9091549Abstract: A system and method for estimating the position of an object, such as a person, animal, or machine. The system includes first and second inertial measurement units, a first and second originator antennas, and a first and second transponder antennas. The system uses data from the inertial measurement units to estimate a position of the object. The system also calculates a range measurement between the first originator antenna and first transponder antenna. The system calculates a first CPD measurement between the second transponder antenna and the first originator antenna, and a second CPD measurement between the second originator antenna and the first transponder antenna. The range measurement and at least one CPD measurement are used to update a Kalman filter for estimating the position of the object. The system determines also updates the Kalman filter when one of the inertial measurement units is in a zero-velocity condition.Type: GrantFiled: December 16, 2013Date of Patent: July 28, 2015Assignee: ENSCO, INC.Inventors: David W. A. Taylor, Jr., Bradley David Farnsworth, William Todd Faulkner, Christopher Matthew Foster, Robert Barlow Alwood
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Patent number: 8862394Abstract: A system and method for estimating the position of an object, such as a person, animal, or machine. The system includes first and second inertial measurement units, a first and second originator antennas, and a first and second transponder antennas. The system uses data from the inertial measurement units to estimate a position of the object. The system also calculates a range measurement between the first originator antenna and first transponder antenna. The system calculates a first CPD measurement between the second transponder antenna and the first originator antenna, and a second CPD measurement between the second originator antenna and the first transponder antenna. The range measurement and at least one CPD measurement are used to update a Kalman filter for estimating the position of the object. The system determines also updates the Kalman filter when one of the inertial measurement units is in a zero-velocity condition.Type: GrantFiled: January 22, 2013Date of Patent: October 14, 2014Assignee: Ensco, Inc.Inventors: David W. A. Taylor, Jr., Bradley David Farnsworth, William Todd Faulkner, Christopher Matthew Foster, Robert Barlow Alwood
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Publication number: 20140266907Abstract: A geolocation system includes an originator device configured to transmit a first wireless signal to a transponder device. The transponder device is configured to transmit a second wireless signal to the originator device. The system includes at least one observer device configured to receive the first wireless signal from the originator device and receive the second wireless signal from the transponder device. The system also includes a first processor configured to calculate a transactional difference range at the at least one observer device based on the first wireless signal received at the observer device and the second wireless signal received at the observer device. A corrected transactional difference range value may be calculated by subtracting a time-of-flight of the first wireless signal from the originator device to the transponder device from the transactional difference range. A method of performing geolocation using a transactional difference range is also disclosed.Type: ApplicationFiled: March 14, 2013Publication date: September 18, 2014Inventors: David W.A. Taylor, JR., Bradley David Farnsworth, William Todd Faulkner
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Publication number: 20140207374Abstract: A system and method for estimating the position of an object, such as a person, animal, or machine. The system includes first and second inertial measurement units, a first and second originator antennas, and a first and second transponder antennas. The system uses data from the inertial measurement units to estimate a position of the object. The system also calculates a range measurement between the first originator antenna and first transponder antenna. The system calculates a first CPD measurement between the second transponder antenna and the first originator antenna, and a second CPD measurement between the second originator antenna and the first transponder antenna. The range measurement and at least one CPD measurement are used to update a Kalman filter for estimating the position of the object. The system determines also updates the Kalman filter when one of the inertial measurement units is in a zero-velocity condition.Type: ApplicationFiled: January 22, 2013Publication date: July 24, 2014Inventors: David W.A. TAYLOR, JR., Bradley David Farnsworth, William Todd Faulkner, Christopher Matthew Foster, Robert Barlow Alwood
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Publication number: 20140203971Abstract: A system and method for estimating the position of an object, such as a person, animal, or machine. The system includes first and second inertial measurement units, a first and second originator antennas, and a first and second transponder antennas. The system uses data from the inertial measurement units to estimate a position of the object. The system also calculates a range measurement between the first originator antenna and first transponder antenna. The system calculates a first CPD measurement between the second transponder antenna and the first originator antenna, and a second CPD measurement between the second originator antenna and the first transponder antenna. The range measurement and at least one CPD measurement are used to update a Kalman filter for estimating the position of the object. The system determines also updates the Kalman filter when one of the inertial measurement units is in a zero-velocity condition.Type: ApplicationFiled: December 16, 2013Publication date: July 24, 2014Applicant: ENSCO, Inc.Inventors: David W.A. TAYLOR, JR., Bradley David Farnsworth, William Todd Faulkner, Christopher Matthew Foster, Robert Barlow Alwood
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Publication number: 20140203970Abstract: A system and method for estimating the position of an object, such as a person, animal, or machine. The system includes first and second inertial measurement units, a first and second originator antennas, and a first and second transponder antennas. The system uses data from the inertial measurement units to estimate a position of the object. The system also calculates a range measurement between the first originator antenna and first transponder antenna. The system calculates a first CPD measurement between the second transponder antenna and the first originator antenna, and a second CPD measurement between the second originator antenna and the first transponder antenna. The range measurement and at least one CPD measurement are used to update a Kalman filter for estimating the position of the object. The system determines also updates the Kalman filter when one of the inertial measurement units is in a zero-velocity condition.Type: ApplicationFiled: December 16, 2013Publication date: July 24, 2014Applicant: ENSCO, Inc.Inventors: David W.A. Taylor, Bradley David Farnsworth, William Todd Faulkner, Christopher Matther Foster, Robert Barlow Alwood