Patents by Inventor Gregory J. Mazzaro
Gregory J. Mazzaro 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: 20220365203Abstract: Apparatuses and methods for studying and recording acoustic/electromagnetic responses of devices that contain electrical or electronic circuits help to improve the effectiveness of detecting and characterizing electronics used with an acoustic radar. The apparatuses and methods generate, measure, and record the interactions of electromagnetic (EM) and acoustic waves at or inside those devices that are to be detected using acoustic radar.Type: ApplicationFiled: May 17, 2021Publication date: November 17, 2022Inventors: Gregory J. Mazzaro, Bart H. Knapp, Kyle A. Gallagher, Kelly D. Sherbondy
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Patent number: 10564280Abstract: A method and apparatus for detecting an object comprising a radio frequency transmitter for transmitting a radio frequency signal towards an object; an acoustic signal transmitter for transmitting an acoustic signal capable of causing intermittent contact of conductive and/or semi-conductive junctions of the object; and a radio frequency receiver for receiving the radio frequency signal after the radio frequency signal is reflected from the object, where the received radio frequency signal has been altered by the intermittent contact of conductive and/or semi-conductive junctions of the object.Type: GrantFiled: July 20, 2018Date of Patent: February 18, 2020Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Gregory J. Mazzaro, Kyle A. Gallagher, Kelly D. Sherbondy
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Publication number: 20200025915Abstract: A method and apparatus for detecting an object comprising a radio frequency transmitter for transmitting a radio frequency signal towards an object; an acoustic signal transmitter for transmitting an acoustic signal capable of causing intermittent contact of conductive and/or semi-conductive junctions of the object; and a radio frequency receiver for receiving the radio frequency signal after the radio frequency signal is reflected from the object, where the received radio frequency signal has been altered by the intermittent contact of conductive and/or semi-conductive junctions of the object.Type: ApplicationFiled: July 20, 2018Publication date: January 23, 2020Inventors: Gregory J. Mazzaro, Kyle A. Gallagher, Kelly D. Sherbondy
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Patent number: 10234543Abstract: Embodiments of the present invention concern locating targets using non-linear radar with a matched filter which uses exponential value of the transmit signal. According to embodiments, a method of non-linear radar target location includes: transmitting a signal of a transmit waveform towards a target; receiving a signal from the target; creating a matched filter by generating an exponential function of the transmit waveform corresponding to a particular harmonic of the interest; and applying the matched filter to the received signal to generate and output a signature waveform for the target of the particular harmonic of interest. In other embodiments, the matched filtering may be combined with sidelobe reduction.Type: GrantFiled: April 20, 2016Date of Patent: March 19, 2019Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Gregory J. Mazzaro, Kyle A. Gallagher, Kenneth I. Ranney, Anthony F. Martone
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Patent number: 10203405Abstract: Method for determining distance to target using a multitone nonlinear radar system comprising providing a transmitter that transmits a signal comprising at least two predetermined frequency components; receiving transmitted signal upon reflection from target; determining the phase relationships of the frequency components when signal strikes target; determining distance the signal has travelled to target based upon the phase relationship of the frequency signal components at the time of reflection from target; computing the distance to target.Type: GrantFiled: April 8, 2016Date of Patent: February 12, 2019Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Gregory J. Mazzaro, Kenneth I. Ranney, Kyle A. Gallagher, Anthony F. Martone
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Patent number: 10018707Abstract: A novel methodology for automatically linearizing a harmonic radar transmitter—termed Feed-Forward Filter Reflection (FFFR)—is disclosed. The method combines the reflected second harmonic from a filter with the signal passing directly through the filter. The second harmonic from these two paths are combined with equal and opposite amplitudes to reduce the second harmonic beyond filtering alone. This methodology has been experimentally verified at transmit frequencies between 800 and 1000 MHz. Implemented properly, the technique provides greater than 100 dB rejection between 1.6 and 2.0 GHz. Although the tuning has been automated, further optimization is possible. Automated tuning is demonstrated over 400 MHz of bandwidth with a minimum cancellation of 110 dB. One application for the harmonic cancellation is to create a linear radar transmitter for the remote detection of non-linear targets.Type: GrantFiled: May 4, 2015Date of Patent: July 10, 2018Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Gregory J. Mazzaro, Kyle A. Gallagher
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Publication number: 20170307726Abstract: Embodiments of the present invention concern locating targets using non-linear radar with a matched filter which uses exponential value of the transmit signal. According to embodiments, a method of non-linear radar target location includes: transmitting a signal of a transmit waveform towards a target; receiving a signal from the target; creating a matched filter by generating an exponential function of the transmit waveform corresponding to a particular harmonic of the interest; and applying the matched filter to the received signal to generate and output a signature waveform for the target of the particular harmonic of interest. In other embodiments, the matched filtering may be combined with sidelobe reduction.Type: ApplicationFiled: April 20, 2016Publication date: October 26, 2017Inventors: Gregory J. Mazzaro, Kyle A. Gallagher, Kenneth I. Ranney, Anthony F. Martone
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Patent number: 9476973Abstract: A radar assembly for linear and nonlinear radar transmission and reception comprising a signal generator; at least one filter operatively connected to the signal generator; a transmitter operatively connected to the at least one filter for transmitting radar signals; a receiver operative to receiving received signals comprising linear and nonlinear responses from the reflected transmitted signals; the receiver comprising a first channel for processing the linear response of the received signal; a second channel for the processing the nonlinear response of the received signal; at least one switch operative to select one of the first or second channels; at least one high pass filter operatively connected to the second channel to attenuate the linear response; at least one amplifier to amplify the nonlinear response; and at least one display operatively connected to both the first and second channels for displaying both linear and nonlinear responses.Type: GrantFiled: September 20, 2013Date of Patent: October 25, 2016Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Gregory J Mazzaro, Kelly D. Sherbondy, DaHan Liao
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Publication number: 20160282457Abstract: Method for determining distance to target using a multitone nonlinear radar system comprising providing a transmitter that transmits a signal comprising at least two predetermined frequency components; receiving transmitted signal upon reflection from target; determining the phase relationships of the frequency components when signal strikes target; determining distance the signal has travelled to target based upon the phase relationship of the frequency signal components at the time of reflection from target; computing the distance to target.Type: ApplicationFiled: April 8, 2016Publication date: September 29, 2016Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-IInventors: Gregory J. Mazzaro, Kenneth I. Ranney, Kyle A. Gallagher, Anthony F. Martone
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Patent number: 9435882Abstract: A method and apparatus for cognitive non-linear radar processing comprising identifying one or more frequency bands of interest, passively scanning, using a non-linear radar (NR), the one or more frequency bands of interest to determine whether interference signals are occupying the one or more bands, transmitting radar waveforms and receiving radar waveform responses at one or more frequency bands determined to be free of interference, determining a likelihood of a target being present or not based on whether the received waveform responses match stored waveform responses for non-linear targets, and modifying waveform parameters of the transmitted radar waveform when the received waveform responses match the stored waveform responses, so as to transmit a modified radar waveform.Type: GrantFiled: August 27, 2013Date of Patent: September 6, 2016Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Anthony F. Martone, David M. McNamara, Gregory J. Mazzaro, Abigail S. Hedden
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Publication number: 20160209494Abstract: A novel methodology for automatically linearizing a harmonic radar transmitter—termed Feed-Forward Filter Reflection (FFFR)—is disclosed. The method combines the reflected second harmonic from a filter with the signal passing directly through the filter. The second harmonic from these two paths are combined with equal and opposite amplitudes to reduce the second harmonic beyond filtering alone. This methodology has been experimentally verified at transmit frequencies between 800 and 1000 MHz. Implemented properly, the technique provides greater than 100 dB rejection between 1.6 and 2.0 GHz. Although the tuning has been automated, further optimization is possible. Automated tuning is demonstrated over 400 MHz of bandwidth with a minimum cancellation of 110 dB. One application for the harmonic cancellation is to create a linear radar transmitter for the remote detection of non-linear targets.Type: ApplicationFiled: May 4, 2015Publication date: July 21, 2016Inventors: Gregory J. Mazzaro, Kyle A. Gallagher
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Publication number: 20160033622Abstract: A method and apparatus for cognitive non-linear radar processing comprising identifying one or more frequency bands of interest, passively scanning, using a non-linear radar (NR), the one or more frequency bands of interest to determine whether interference signals are occupying the one or more bands, transmitting radar waveforms and receiving radar waveform responses at one or more frequency bands determined to be free of interference, determining a likelihood of a target being present or not based on whether the received waveform responses match stored waveform responses for non-linear targets, and modifying waveform parameters of the transmitted radar waveform when the received waveform responses match the stored waveform responses, so as to transmit a modified radar waveform.Type: ApplicationFiled: August 27, 2013Publication date: February 4, 2016Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-IInventors: Anthony F. Martone, David M. McNamara, Gregory J. Mazzaro, Abigail S. Hedden
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Patent number: 9151787Abstract: Methods and apparatus for measuring permittivity having a meander-line ring resonator, which may be disposed on a substrate proximate to and separated from an input coupler and an output coupler thereon, the resonator ring further including a continuous conductive material having at least two turns to form a single congruent pattern, symmetrical along at least one axis.Type: GrantFiled: November 1, 2012Date of Patent: October 6, 2015Assignee: The United States of America as represented by the Secretary of the ArmyInventor: Gregory J. Mazzaro
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Publication number: 20150084811Abstract: A radar assembly for linear and nonlinear radar transmission and reception comprising a signal generator; at least one filter operatively connected to the signal generator; a transmitter operatively connected to the at least one filter for transmitting radar signals; a receiver operative to receiving received signals comprising linear and nonlinear responses from the reflected transmitted signals; the receiver comprising a first channel for processing the linear response of the received signal; a second channel for the processing the nonlinear response of the received signal; at least one switch operative to select one of the first or second channels; at least one high pass filter operatively connected to the second channel to attenuate the linear response; at least one amplifier to amplify the nonlinear response; and at least one display operatively connected to both the first and second channels for displaying both linear and nonlinear responses.Type: ApplicationFiled: September 20, 2013Publication date: March 26, 2015Inventors: Gregory J. Mazzaro, Kelly D. Sherbondy, DaHan Liao