Patents by Inventor Gregory L. Charvat
Gregory L. Charvat 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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Publication number: 20240100565Abstract: CMOS Ultrasonic Transducers and processes for making such devices are described. The processes may include forming cavities on a first wafer and bonding the first wafer to a second wafer. The second wafer may be processed to form a membrane for the cavities. Electrical access to the cavities may be provided.Type: ApplicationFiled: November 30, 2023Publication date: March 28, 2024Inventors: Jonathan M. Rothberg, Keith G. Fife, Tyler S. Ralston, Gregory L. Charvat, Nevada J. Sanchez
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Patent number: 11850075Abstract: Aspects relate to providing radio frequency components responsive to magnetic resonance signals. According to some aspects, a radio frequency component comprises at least one coil having a conductor arranged in a plurality of turns oriented about a region of interest to respond to corresponding magnetic resonant signal components. According to some aspects, the radio frequency component comprises a plurality of coils oriented to respond to corresponding magnetic resonant signal components. According to some aspects, an optimization is used to determine a configuration for at least one radio frequency coil.Type: GrantFiled: July 10, 2020Date of Patent: December 26, 2023Assignee: Hyperfine Operations, Inc.Inventors: Michael Stephen Poole, Gregory L. Charvat, Todd Rearick, Jonathan M. Rothberg
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Patent number: 11833542Abstract: CMOS Ultrasonic Transducers and processes for making such devices are described. The processes may include forming cavities on a first wafer and bonding the first wafer to a second wafer. The second wafer may be processed to form a membrane for the cavities. Electrical access to the cavities may be provided.Type: GrantFiled: September 6, 2019Date of Patent: December 5, 2023Assignee: BFLY Operations, Inc.Inventors: Jonathan M. Rothberg, Keith G. Fife, Tyler S. Ralston, Gregory L. Charvat, Nevada J. Sanchez
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Publication number: 20230333188Abstract: According to some aspects, a method of suppressing noise in an environment of a magnetic resonance imaging system is provided. The method comprising estimating a transfer function based on multiple calibration measurements obtained from the environment by at least one primary coil and at least one auxiliary sensor, respectively, estimating noise present in a magnetic resonance signal received by the at least one primary coil based at least in part on the transfer function, and suppressing noise in the magnetic resonance signal using the noise estimate.Type: ApplicationFiled: April 24, 2023Publication date: October 19, 2023Applicant: Hyperfine Operations, Inc.Inventors: Todd Rearick, Gregory L. Charvat, Matthew Scot Rosen, Jonathan M. Rothberg
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Publication number: 20230320668Abstract: Aspects relate to providing radio frequency components responsive to magnetic resonance signals. According to some aspects, a radio frequency component comprises at least one coil having a conductor arranged in a plurality of turns oriented about a region of interest to respond to corresponding magnetic resonant signal components. According to some aspects, the radio frequency component comprises a plurality of coils oriented to respond to corresponding magnetic resonant signal components. According to some aspects, an optimization is used to determine a configuration for at least one radio frequency coil.Type: ApplicationFiled: June 14, 2023Publication date: October 12, 2023Applicant: Hyperfine Operations, Inc.Inventors: Michael Stephen Poole, Gregory L. Charvat, Todd Rearick, Jonathan M. Rothberg
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Publication number: 20230324479Abstract: Some aspects comprise a tuning system configured to tune a radio frequency coil for use with a magnetic resonance imaging system comprising a tuning circuit including at least one tuning element configured to affect a frequency at which the radio frequency coil resonates, and a controller configured to set at least one value for the tuning element to cause the radio frequency coil to resonate at approximately a Larmor frequency of the magnetic resonance imaging system determined by the tuning system. Some aspects include a method of automatically tuning a radio frequency coil comprising determining information indicative of a Larmor frequency of the magnetic resonance imaging system, using a controller to automatically set at least one value of a tuning circuit to cause the radio frequency coil to resonate at approximately the Larmor frequency based on the determined information.Type: ApplicationFiled: June 13, 2023Publication date: October 12, 2023Applicant: Hyperfine Operations, Inc.Inventors: Todd Rearick, Jeremy Christopher Jordan, Gregory L. Charvat, Matthew Scot Rosen
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Patent number: 11714147Abstract: Some aspects comprise a tuning system configured to tune a radio frequency coil for use with a magnetic resonance imaging system comprising a tuning circuit including at least one tuning element configured to affect a frequency at which the radio frequency coil resonates, and a controller configured to set at least one value for the tuning element to cause the radio frequency coil to resonate at approximately a Larmor frequency of the magnetic resonance imaging system determined by the tuning system. Some aspects include a method of automatically tuning a radio frequency coil comprising determining information indicative of a Larmor frequency of the magnetic resonance imaging system, using a controller to automatically set at least one value of a tuning circuit to cause the radio frequency coil to resonate at approximately the Larmor frequency based on the determined information.Type: GrantFiled: March 29, 2021Date of Patent: August 1, 2023Assignee: Hyperfine Operations, Inc.Inventors: Todd Rearick, Jeremy Christopher Jordan, Gregory L. Charvat, Matthew Scot Rosen
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Patent number: 11684949Abstract: CMOS Ultrasonic Transducers and processes for making such devices are described. The processes may include forming cavities on a first wafer and bonding the first wafer to a second wafer. The second wafer may be processed to form a membrane for the cavities. Electrical access to the cavities may be provided.Type: GrantFiled: October 30, 2020Date of Patent: June 27, 2023Assignee: BFLY OPERATIONS, INC.Inventors: Jonathan M. Rothberg, Keith G. Fife, Tyler S. Ralston, Gregory L. Charvat, Nevada J. Sanchez
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Patent number: 11688929Abstract: A system comprising synchronization circuitry, a first interrogator, and a second interrogator. The first interrogator includes a transmit antenna; a first receive antenna, and circuitry configured to generate, using radio-frequency (RF) signal synthesis information received from the synchronization circuitry, a first RF signal for transmission by the transmit antenna, and generate, using the first RF signal and a second RF signal received from a target device by the first receive antenna, a first mixed RF signal indicative of a distance between the first interrogator and the target device. The second interrogator includes a second receive antenna, and circuitry configured to generate, using the RF signal synthesis information, a third RF signal; and generate, using the third RF signal and a fourth RF signal received from the target device by the second receive antenna, a second mixed RF signal indicative of a distance between the second interrogator and the target device.Type: GrantFiled: April 26, 2021Date of Patent: June 27, 2023Assignee: Humatics CorporationInventors: Gregory L. Charvat, David A. Mindell
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Patent number: 11662412Abstract: According to some aspects, a method of suppressing noise in an environment of a magnetic resonance imaging system is provided. The method comprising estimating a transfer function based on multiple calibration measurements obtained from the environment by at least one primary coil and at least one auxiliary sensor, respectively, estimating noise present in a magnetic resonance signal received by the at least one primary coil based at least in part on the transfer function, and suppressing noise in the magnetic resonance signal using the noise estimate.Type: GrantFiled: December 2, 2021Date of Patent: May 30, 2023Assignee: Hyperfine Operations, Inc.Inventors: Todd Rearick, Gregory L. Charvat, Matthew Scot Rosen, Jonathan M. Rothberg
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Patent number: 11647985Abstract: Ultrasound devices and methods are described, including a repeatable ultrasound transducer probe having ultrasonic transducers and corresponding circuitry. The repeatable ultrasound transducer probe may be used individually or coupled with other instances of the repeatable ultrasound transducer probe to create a desired ultrasound device. The ultrasound devices may optionally be connected to various types of external devices to provide additional processing and image rendering functionality.Type: GrantFiled: March 22, 2021Date of Patent: May 16, 2023Assignee: BFLY OPERATIONS, INC.Inventors: Jonathan M. Rothberg, Keith G. Fife, Nevada J. Sanchez, Tyler S. Ralston, Gregory L. Charvat, Gregory Corteville
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Publication number: 20230079579Abstract: A hand-held ultrasound device, for placement on a subject, includes a semiconductor device and a housing to support the semiconductor device. The semiconductor device includes: a plurality of ultrasonic transducer elements; a plurality of pulsers coupled to the plurality of ultrasonic transducer elements; a plurality of waveform generators configured to drive the plurality of pulsers; receive processing circuitry configured to process ultrasound signals received by the plurality of ultrasonic transducer elements; and a plurality of independently controllable registers configured to store a plurality of different parameters for the waveform generators.Type: ApplicationFiled: August 18, 2022Publication date: March 16, 2023Applicant: BFLY Operations, Inc.Inventors: Jonathan M. Rothberg, Keith G. Fife, Tyler S. Ralston, Gregory L. Charvat, Nevada J. Sanchez
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Publication number: 20220413141Abstract: An active radio-frequency (RF) sensing technology for determining the relative and/or absolute state (e.g., position, velocity, and/or acceleration) of a target object (e.g., a person, a car, a truck a lamp post, a utility pole, a building) is described. The sensors described herein operate in the Terahertz band (300 GHz to 3 THz). An active RF sensing device comprises a substrate and first and second semiconductor dies mounted on the substrate. The first semiconductor die has an RF transmit antenna array integrated thereon, and the transmit antenna array comprises a first plurality of RF antennas configured to generate an RF signals having frequency content in the 300 GHz-3 THz band. The second semiconductor die has an RF receive antenna array integrated thereon, and the receive antenna array comprises a second plurality of RF antennas configured to receive RF signals having frequency content in the 300 GHz-3 THz band.Type: ApplicationFiled: June 21, 2022Publication date: December 29, 2022Applicant: ForSight Technologies Inc.Inventors: Gregory L. Charvat, Nicholas Saiz, Matthew Carey
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Publication number: 20220413114Abstract: An active radio-frequency (RF) sensing technology for determining the relative and/or absolute state (e.g., position, velocity, and/or acceleration) of a target object (e.g., a person, a car, a truck a lamp post, a utility pole, a building) is described. The sensors described herein operate in the Terahertz band (300 GHz to 3 THz). An active RF sensing device comprises a substrate and first and second semiconductor dies mounted on the substrate. The first semiconductor die has an RF transmit antenna array integrated thereon, and the transmit antenna array comprises a first plurality of RF antennas configured to generate an RF signals having frequency content in the 300 GHz-3 THz band. The second semiconductor die has an RF receive antenna array integrated thereon, and the receive antenna array comprises a second plurality of RF antennas configured to receive RF signals having frequency content in the 300 GHz-3 THz band.Type: ApplicationFiled: June 21, 2022Publication date: December 29, 2022Applicant: ForSight Technologies Inc.Inventors: Gregory L. Charvat, Nicholas Saiz, Matthew Carey
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Publication number: 20220413126Abstract: An active radio-frequency (RF) sensing technology for determining the relative and/or absolute state (e.g., position, velocity, and/or acceleration) of a target object (e.g., a person, a car, a truck a lamp post, a utility pole, a building) is described. The sensors described herein operate in the Terahertz band (300 GHz to 3 THz). An active RF sensing device comprises a substrate and first and second semiconductor dies mounted on the substrate. The first semiconductor die has an RF transmit antenna array integrated thereon, and the transmit antenna array comprises a first plurality of RF antennas configured to generate an RF signals having frequency content in the 300 GHz-3 THz band. The second semiconductor die has an RF receive antenna array integrated thereon, and the receive antenna array comprises a second plurality of RF antennas configured to receive RF signals having frequency content in the 300 GHz-3 THz band.Type: ApplicationFiled: June 21, 2022Publication date: December 29, 2022Applicant: ForSight Technologies Inc.Inventors: Gregory L. Charvat, Nicholas Saiz, Matthew Carey
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Patent number: 11439364Abstract: To implement a single-chip ultrasonic imaging solution, on-chip signal processing may be employed in the receive signal path to reduce data bandwidth and a high-speed serial data module may be used to move data for all received channels off-chip as digital data stream. The digitization of received signals on-chip allows advanced digital signal processing to be performed on-chip, and thus permits the full integration of an entire ultrasonic imaging system on a single semiconductor substrate. Various novel waveform generation techniques, transducer configuration and biasing methodologies, etc., are likewise disclosed. HIFU methods may additionally or alternatively be employed as a component of the “ultrasound-on-a-chip” solution disclosed herein.Type: GrantFiled: June 29, 2017Date of Patent: September 13, 2022Assignee: BFLY Operations, Inc.Inventors: Jonathan M. Rothberg, Keith G. Fife, Tyler S. Ralston, Gregory L. Charvat, Nevada J. Sanchez
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Publication number: 20220271415Abstract: A device comprising: a substrate; a semiconductor die mounted on the substrate; a transmit antenna fabricated on the substrate and configured to transmit radio-frequency (RF) signals at least at a first center frequency; a receive antenna fabricated on the substrate and configured to receive RF signals at least at a second center frequency different than the first center frequency; and circuitry integrated with the semiconductor die and configured to provide RF signals to the transmit antenna and to receive RF signals from the receive antenna.Type: ApplicationFiled: November 4, 2021Publication date: August 25, 2022Applicant: Humatics CorporationInventors: Gregory L. Charvat, David A. Mindell
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Publication number: 20220133274Abstract: To implement a single-chip ultrasonic imaging solution, on-chip signal processing may be employed in the receive signal path to reduce data bandwidth and a high-speed serial data module may be used to move data for all received channels off-chip as digital data stream. The digitization of received signals on-chip allows advanced digital signal processing to be performed on-chip, and thus permits the full integration of an entire ultrasonic imaging system on a single semiconductor substrate. Various novel waveform generation techniques, transducer configuration and biasing methodologies, etc., are likewise disclosed. HIFU methods may additionally or alternatively be employed as a component of the “ultrasound-on-a-chip” solution disclosed herein.Type: ApplicationFiled: January 18, 2022Publication date: May 5, 2022Applicant: BFLY Operations, Inc.Inventors: Jonathan M. Rothberg, Keith G. Fife, Tyler S. Ralston, Gregory L. Charvat, Nevada J. Sanchez
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Publication number: 20220115123Abstract: Systems and methods for facilitating interactions between a medical device (e.g., an imaging device, a surgical tool, a robotic arm, etc.) and a patient using radio frequency (RF) co-localization are provided. The systems include a radio-frequency (RF) interrogator system, one or more first RF target devices for coupling to a patient support for supporting a patient with respect to whom a medical device is to perform a task, and one or more second RF target devices for coupling to the medical device. A controller determines a position of the patient support within an RF interrogator system reference frame, a first position of the medical device within the RF interrogator system reference frame, a transformation between the RF interrogator system reference frame and a patient support reference frame, and a second position of the medical device within the patient support reference frame.Type: ApplicationFiled: October 8, 2021Publication date: April 14, 2022Inventors: David A. Mindell, James Campbell Kinsey, Gregory L. Charvat, Matthew Carey, Devon Reed Clark, Eben Christopher Rauhut, Jyotsna Marie Winsor
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Publication number: 20220110529Abstract: Described herein are arrays of piezoelectric ultrasound elements. The piezoelectric ultrasound elements may be arranged in a checkerboard pattern. The piezoelectric ultrasound elements in one column may be shifted along the vertical dimension of the array with respect to piezoelectric ultrasound elements in an adjacent column. A piezoelectric ultrasound element in one column may be coupled to a different circuit than all other piezoelectric ultrasound elements in the column. The circuit may be, for example, an analog-to-digital converter or a circuit configured to transmit ultrasound signals from the array. Each piezoelectric ultrasound element in a column may be configured so that it can operate at a different frequency from each of the other piezoelectric ultrasound elements in the column. There array may include at least 1,000 piezoelectric ultrasound elements. The array may be monolithically integrated with a substrate comprising different circuits for each piezoelectric ultrasound element in the array.Type: ApplicationFiled: December 17, 2021Publication date: April 14, 2022Applicant: BFLY Operations, Inc.Inventors: Jonathan M. Rothberg, Nevada J. Sanchez, Gregory L. Charvat, Tyler S. Ralston