Patents by Inventor Mohammad Tayeb Ghasr
Mohammad Tayeb Ghasr 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: 11009585Abstract: Microwave and millimeter wave imaging. An antenna array in communication with a signal source comprises a plurality of antennas by which a signal generated by the signal source is transmitted incident to an object located remotely from the antenna array and by which a signal reflected from the object is received by the antenna array. The signals transmitted by the antennas collectively have an effective electric field resembling a plane-wave within a target region in front of the antenna array. A plurality of detectors each connected to one of the antennas is configured to simultaneously receive the reflected signal and provide an output signal representative thereof. An image processor configured to execute an imaging algorithm generates a multi-dimensional profile representative of the object based on the output signals from the detectors.Type: GrantFiled: October 25, 2018Date of Patent: May 18, 2021Assignee: THE CURATORS OF THE UNIVERSITY OF MISSOURIInventors: Matthew J. Horst, Reza Zoughi, Mohammad Tayeb Ghasr
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Patent number: 10921264Abstract: Utilizing microwave reflections to compare a reference device with counterfeit and/or aging devices under test. The reflection from the device under test varies based on certain properties, which results in each device having a unique and intrinsic electromagnetic signature. Comparisons of the electromagnetic signature of the device under test to the electromagnetic signature of a reference device enable evaluating the acceptability of the device under test.Type: GrantFiled: August 18, 2017Date of Patent: February 16, 2021Assignee: THE CURATORS OF THE UNIVERSITY OF MISSOURIInventors: Mohammad Tayeb Ghasr, Reza Zoughi, Satyajeet Shinde, Sasi Jothibasu
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Patent number: 10556393Abstract: A method of manufacturing a tire is provided that includes curing the tire (10) in a curing press (12) and applying microwave energy at a given frequency band into the tire. The interaction between the microwave energy and the tire is monitored to obtain a complex reflection coefficient. A root-mean-squared error is calculated using the measured complex reflection coefficient and a reference reflection coefficient. The reference reflection coefficient is from a fully cured tire made from the same material as the tire. Continuous monitoring of the interaction takes place to obtain the complex reflection coefficient along with continuous calculation of the root-mean-squared error at different times during the curing of the tire in the curing press. The calculated root-mean-squared errors are used to determine whether to stop the curing of the tire in the curing press.Type: GrantFiled: July 18, 2017Date of Patent: February 11, 2020Assignee: The Curators of the University of MissouriInventors: David Judd, Frank Gramling, Reza Zoughi, Mohammad Tayeb Ghasr
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Publication number: 20190227003Abstract: Utilizing microwave reflections to compare a reference device with counterfeit and/or aging devices under test. The reflection from the device under test varies based on certain properties, which results in each device having a unique and intrinsic electromagnetic signature. Comparisons of the electromagnetic signature of the device under test to the electromagnetic signature of a reference device enable evaluating the acceptability of the device under test.Type: ApplicationFiled: August 18, 2017Publication date: July 25, 2019Inventors: Mohammad Tayeb Ghasr, Reza Zoughi, Satyajeet Shinde, Sasi Jothibasu
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Publication number: 20190160770Abstract: A method of manufacturing a tire is provided that includes curing the tire (10) in a curing press (12) and applying microwave energy at a given frequency band into the tire. The interaction between the microwave energy and the tire is monitored to obtain a complex reflection coefficient. A root-mean-squared error is calculated using the measured complex reflection coefficient and a reference reflection coefficient. The reference reflection coefficient is from a fully cured tire made from the same material as the tire. Continuous monitoring of the interaction takes place to obtain the complex reflection coefficient along with continuous calculation of the root-mean-squared error at different times during the curing of the tire in the curing press. The calculated root-mean-squared errors are used to determine whether to stop the curing of the tire in the curing press.Type: ApplicationFiled: July 18, 2017Publication date: May 30, 2019Inventors: DAVID JUDD, FRANK GRAMLING, REZA ZOUGHI, MOHAMMAD TAYEB GHASR
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Publication number: 20190128999Abstract: Microwave and millimeter wave imaging. An antenna array in communication with a signal source comprises a plurality of antennas by which a signal generated by the signal source is transmitted incident to an object located remotely from the antenna array and by which a signal reflected from the object is received by the antenna array. The signals transmitted by the antennas collectively have an effective electric field resembling a plane-wave within a target region in front of the antenna array. A plurality of detectors each connected to one of the antennas is configured to simultaneously receive the reflected signal and provide an output signal representative thereof. An image processor configured to execute an imaging algorithm generates a multi-dimensional profile representative of the object based on the output signals from the detectors.Type: ApplicationFiled: October 25, 2018Publication date: May 2, 2019Applicant: The Curators of the University of MissouriInventors: Matthew J. Horst, Reza Zoughi, Mohammad Tayeb Ghasr
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Patent number: 9689964Abstract: A super regenerative receiver detection system and method that includes a computing system that stores and executes a cross modulation correlation component to modulate a radio-frequency (RF) stimulation signal that is transmitted in an area using a modulating signal having a first modulating mode, and receive a response UEE signal from the area in which the response UEE signal includes a cross modulated signal emitted from a super regenerative receiver (SRR). The cross modulated signal having a second modulation mode that is different from the first modulation mode. Using this information, the cross modulation correlation component processes the received UEE signal to determine a cross modulation correlation level of a cross modulation signal relative to the modulating signal, and generates an alert signal when the determined cross modulation correlation level exceeds a specified threshold.Type: GrantFiled: April 23, 2014Date of Patent: June 27, 2017Assignee: The Curators of the University of MissouriInventors: Jagannathan Sarangapani, Maciej Jan Zawodniok, Vivek Thotla, Mohammad Tayeb Ghasr, Jake Hertenstein
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Patent number: 9482626Abstract: An open-ended waveguide probe including a finite flange extending outwardly and functioning as an infinite flange. A signal source provides a microwave signal to the waveguide, which in turn transmits microwave electromagnetic energy incident upon an object to be tested. The finite flange at the waveguide's aperture is shaped to reduce scattering of the electromagnetic field reflected from the object and received by the aperture. The probe is adapted for coupling to a receiver for sampling the reflected electromagnetic field received by the aperture and the receiver is adapted for coupling to a processor for determining at least one material characteristic of the object based on sampled electromagnetic field reflected from the object.Type: GrantFiled: September 13, 2013Date of Patent: November 1, 2016Assignee: The Curators of the University of MissouriInventors: Mohammad Tayeb Ghasr, Matthew Kempin, Reza Zoughi
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Patent number: 9482627Abstract: A method of inspection of a tire was developed using microwave imaging comprising the steps of selecting a plurality of regions from within a tire to be imaged; determining the dielectric properties of the tire components in each of the selected regions in a plurality of frequency bands; selecting a specific location on a tire to be imaged; providing a scanning platform for microwave imaging of the tire; imaging the selected location on a tire using microwave imaging at a plurality of microwave scanning frequencies and at a selected microwave polarization to obtain images of the internal state of the sample; and filtering the images to remove the effects of curvature of the selected location of the tire.Type: GrantFiled: July 28, 2014Date of Patent: November 1, 2016Assignees: Michelin Recherche et Technique S.A., Compagne Generale des Etablissements MichelinInventors: Reza Zoughi, Mohammad Tayeb Ghasr
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Publication number: 20160216358Abstract: A super regenerative receiver detection system and method that includes a computing system that stores and executes a cross modulation correlation component to modulate a radio-frequency (RF) stimulation signal that is transmitted in an area using a modulating signal having a first modulating mode, and receive a response UEE signal from the area in which the response UEE signal includes a cross modulated signal emitted from a super regenerative receiver (SRR). The cross modulated signal having a second modulation mode that is different from the first modulation mode. Using this information, the cross modulation correlation component processes the received UEE signal to determine a cross modulation correlation level of a cross modulation signal relative to the modulating signal, and generates an alert signal when the determined cross modulation correlation level exceeds a specified threshold.Type: ApplicationFiled: April 23, 2014Publication date: July 28, 2016Applicant: The Curators of the University of MissouriInventors: Jagannathan Sarangapani, Maciej Jan Zawodniok, Vivek Thotla, Mohammad Tayeb Ghasr, Jake Hertenstein
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Patent number: 9316734Abstract: Wideband synthetic aperture radar (SAR) imaging. A probe transmits a signal through its aperture incident to an object located in a medium of interest remotely from the probe. The probe receives through the aperture a plurality of nonuniformly sampled reflected signals from the object as the probe moves in a measurement plane located a predetermined distance from the object. A processor executes a SAR-based reconstruction algorithm to generate an image.Type: GrantFiled: October 21, 2013Date of Patent: April 19, 2016Assignee: The Curators of the University of MissouriInventors: Joseph T. Case, Mohammad Tayeb Ghasr, Reza Zoughi
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Patent number: 9046605Abstract: A holographic imaging system including a transmission line coupled to an antenna at one end and to a signal source at another end. The antenna defines an aperture through which a signal generated by the signal source is transmitted incident to an object located remotely from the aperture and through which a signal reflected from the object is received by the antenna aperture. A standing wave probe phase-referenced to the antenna aperture samples the reflected signal. A detector connected to the standing wave probe receives the sampled reflected signal and provides an output signal that represents a real-valued signal proportional to an in-phase component of the reflected signal from the object. A processor executes an imaging algorithm for generating a multi-dimensional profile representative of the object based on the output signal from the detector.Type: GrantFiled: November 5, 2012Date of Patent: June 2, 2015Assignee: The Curators of the University of MissouriInventors: Mohammad Tayeb Ghasr, Reza Zoughi
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Publication number: 20150077138Abstract: An open-ended waveguide probe including a finite flange extending outwardly and functioning as an infinite flange. A signal source provides a microwave signal to the waveguide, which in turn transmits microwave electromagnetic energy incident upon an object to be tested. The finite flange at the waveguide's aperture is shaped to reduce scattering of the electromagnetic field reflected from the object and received by the aperture. The probe is adapted for coupling to a receiver for sampling the reflected electromagnetic field received by the aperture and the receiver is adapted for coupling to a processor for determining at least one material characteristic of the object based on sampled electromagnetic field reflected from the object.Type: ApplicationFiled: September 13, 2013Publication date: March 19, 2015Applicant: The Curators of the University of MissouriInventors: Mohammad Tayeb Ghasr, Matthew Kempin, Reza Zoughi
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Publication number: 20150035547Abstract: A method of inspection of a tire was developed using microwave imaging comprising the steps of selecting a plurality of regions from within a tire to be imaged; determining the dielectric properties of the tire components in each of the selected regions in a plurality of frequency bands; selecting a specific location on a tire to be imaged; providing a scanning platform for microwave imaging of the tire; imaging the selected location on a tire using microwave imaging at a plurality of microwave scanning frequencies and at a selected microwave polarization to obtain images of the internal state of the sample; and filtering the images to remove the effects of curvature of the selected location of the tire.Type: ApplicationFiled: July 28, 2014Publication date: February 5, 2015Inventors: Reza Zoughi, Mohammad Tayeb Ghasr
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Publication number: 20140125516Abstract: A holographic imaging system including a transmission line coupled to an antenna at one end and to a signal source at another end. The antenna defines an aperture through which a signal generated by the signal source is transmitted incident to an object located remotely from the aperture and through which a signal reflected from the object is received by the antenna aperture. A standing wave probe phase-referenced to the antenna aperture samples the reflected signal. A detector connected to the standing wave probe receives the sampled reflected signal and provides an output signal that represents a real-valued signal proportional to an in-phase component of the reflected signal from the object. A processor executes an imaging algorithm for generating a multi-dimensional profile representative of the object based on the output signal from the detector.Type: ApplicationFiled: November 5, 2012Publication date: May 8, 2014Applicant: THE CURATORS OF THE UNIVERSITY OF MISSOURIInventors: Mohammad Tayeb Ghasr, Reza Zoughi
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Publication number: 20140111374Abstract: Wideband synthetic aperture radar (SAR) imaging. A probe transmits a signal through its aperture incident to an object located in a medium of interest remotely from the probe. The probe receives through the aperture a plurality of nonuniformly sampled reflected signals from the object as the probe moves in a measurement plane located a predetermined distance from the object. A processor executes a SAR-based reconstruction algorithm to generate an image.Type: ApplicationFiled: October 21, 2013Publication date: April 24, 2014Applicant: THE CURATORS OF THE UNIVERSITY OF MISSOURIInventors: Joseph T. Case, Mohammad Tayeb Ghasr, Reza Zoughi
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Patent number: 8482602Abstract: Non-destructive imaging of an object. An imaging head supported on a rotatable arm samples an electric field scattered by the object at a plurality of locations as the arm rotates about a central axis, with the locations corresponding to a defined spatial domain located remotely from the object. One or more processors execute computer-readable instructions for controlling rotation of the arm and generating a multi-dimensional profile representative of the object in the defined spatial domain based on the sampling.Type: GrantFiled: November 13, 2009Date of Patent: July 9, 2013Assignee: The Curators of the University of MissouriInventors: David Johannes Pommerenke, Reza Zoughi, Mohammad Tayeb Ghasr, Joseph Tobias Case, Andrew Dale McClanahan, Kyle Lee Guinn
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Publication number: 20100128111Abstract: Non-destructive imaging of an object. An imaging head supported on a rotatable arm samples an electric field scattered by the object at a plurality of locations as the arm rotates about a central axis, with the locations corresponding to a defined spatial domain located remotely from the object. One or more processors execute computer-readable instructions for controlling rotation of the arm and generating a multi-dimensional profile representative of the object in the defined spatial domain based on the sampling.Type: ApplicationFiled: November 13, 2009Publication date: May 27, 2010Applicant: THE CURATORS OF THE UNIVERSITY OF MISSOURIInventors: David Johannes Pommerenke, Reza Zoughi, Mohammad Tayeb Ghasr, Joseph Tobias Case, Andrew Dale McClanahan, Kyle Lee Guinn