Patents by Inventor Richard E. Pavek
Richard E. Pavek 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: 11380944Abstract: Improved battery systems, apparatuses, and methods for use in electric air, land, and marine vehicles and mobile, portable, and stationary electrical appliances and devices are provided. The systems employ acoustic and current manipulation of anode interface deposits including dendrites on or proximate lithium and other anodes. This invention may employ multistatic ultrasonic phased arrays and current modulation to 1) minimize deposit, e.g., dendrite, initiation and formation by acoustic stirring, 2) acoustically image dendritic growths to monitor changes in dendrite growths, 3) cue dendrite cleaning and battery shutdown to avoid short circuit, 4) induce failure in dendritic structure and shearing of at least a portion of the dendrite from the anode, and 5) transport sheared dendrites and other dead metal to a graveyard.Type: GrantFiled: September 24, 2021Date of Patent: July 5, 2022Assignee: RFNAV Inc.Inventors: Jefferson M. Willey, Richard E. Pavek, James H. Schoenduve
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Publication number: 20220021041Abstract: Improved battery systems, apparatuses, and methods for use in electric air, land, and marine vehicles and mobile, portable, and stationary electrical appliances and devices are provided. The systems employ acoustic and current manipulation of anode interface deposits including dendrites on or proximate lithium and other anodes. This invention may employ multistatic ultrasonic phased arrays and current modulation to 1) minimize deposit, e.g., dendrite, initiation and formation by acoustic stirring, 2) acoustically image dendritic growths to monitor changes in dendrite growths, 3) cue dendrite cleaning and battery shutdown to avoid short circuit, 4) induce failure in dendritic structure and shearing of at least a portion of the dendrite from the anode, and 5) transport sheared dendrites and other dead metal to a graveyard.Type: ApplicationFiled: September 24, 2021Publication date: January 20, 2022Applicant: RFNAV Inc.Inventors: Jefferson M. Willey, Richard E. Pavek, James H. Schoenduve
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Patent number: 11158889Abstract: Improved battery systems, apparatuses, and methods for use in electric air, land, and marine vehicles and mobile, portable, and stationary electrical appliances and devices are provided. The systems employ acoustic and current manipulation of anode interface deposits including dendrites on or proximate lithium and other anodes. This invention may employ multistatic ultrasonic phased arrays and current modulation to 1) minimize deposit, e.g., dendrite, initiation and formation by acoustic stirring, 2) acoustically image dendritic growths to monitor changes in dendrite growths, 3) cue dendrite cleaning and battery shutdown to avoid short circuit, 4) induce failure in dendritic structure and shearing of at least a portion of the dendrite from the anode, and 5) transport sheared dendrites and other dead metal to a graveyard.Type: GrantFiled: October 1, 2020Date of Patent: October 26, 2021Assignee: RFNAV Inc.Inventors: Jefferson M. Willey, Richard E. Pavek, James H. Schoenduve
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Publication number: 20210104785Abstract: Improved battery systems, apparatuses, and methods for use in electric air, land, and marine vehicles and mobile, portable, and stationary electrical appliances and devices are provided. The systems employ acoustic and current manipulation of anode interface deposits including dendrites on or proximate lithium and other anodes. This invention may employ multistatic ultrasonic phased arrays and current modulation to 1) minimize deposit, e.g., dendrite, initiation and formation by acoustic stirring, 2) acoustically image dendritic growths to monitor changes in dendrite growths, 3) cue dendrite cleaning and battery shutdown to avoid short circuit, 4) induce failure in dendritic structure and shearing of at least a portion of the dendrite from the anode, and 5) transport sheared dendrites and other dead metal to a graveyard.Type: ApplicationFiled: October 1, 2020Publication date: April 8, 2021Applicant: RFNAV Inc.Inventors: Jefferson M. Willey, Richard E. Pavek, James H. Schoenduve
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Patent number: 9983305Abstract: A low cost, all weather, high definition imaging system for an autonomous vehicle is described. The imaging system generates true target object data suitable for imaging, scene understanding, and all weather navigation of the autonomous vehicle. Data from multiple arrays is fed to a processor that performs data association to form true target detections and target positions. A Boolean associator uses an association method for determining true target detections and target positions to reduce many of the ghosts or incorrect detections that can produce image artifacts. The imaging system provides near optimal imaging in any dense scene for autonomous vehicle navigation, including during visually obscured weather conditions such as fog. The system and method can be applied to variety of imaging technologies, including an RF system, a Lidar system, a sonar system, an ultrasound system, and/or an optical system.Type: GrantFiled: July 14, 2017Date of Patent: May 29, 2018Inventors: Richard E. Pavek, Jefferson M. Willey
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Apparatus and method for single look main lobe and sidelobe discrimination in spectral domain images
Patent number: 9953244Abstract: A system performs operations including receiving multi-dimensional single-look data from a sensor, applying multi-dimensional complex weighting functions including apodizations from among a general class of such functions to the complex data, so as to induce nonlinear variations in the amplitude and phase of the multi-dimensional spectral image responses, forming a number of features per voxel across a number of multi-dimensional spectral image responses, and using a multi-dimensional non-parametric classifier to form features to discriminate main lobe from sidelobe imaged voxels with the weighting function applied to received data. The operations include identifying each voxel by processing a set of transforms from the multi-dimensional complex weighting functions and outputting a multi-dimensional main lobe binary image, representing main lobe versus sidelobe locations.Type: GrantFiled: August 15, 2017Date of Patent: April 24, 2018Assignee: RFNAV, INC.Inventors: Richard E. Pavek, Jefferson M. Willey -
Patent number: 9903946Abstract: A system performs operations including receiving pairs of sensor signals indicative of imaging of an environment, each pair of sensor signals including (i) a first sensor signal received from a first sensor and including first spatial coordinates and a first signal characteristic and (ii) a second sensor signal including second spatial coordinates and a second signal characteristic. The operations include identifying valid pairs of sensor signals, including determining that an address including the first coordinates of the first sensor signal of a given pair and the second coordinates of the second sensor signal of the given pair corresponds to an admissible address in a set of admissible addresses stored in a data storage.Type: GrantFiled: May 26, 2017Date of Patent: February 27, 2018Assignee: RFNAV, INC.Inventors: Jefferson M. Willey, Richard E. Pavek
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APPARATUS AND METHOD FOR SINGLE LOOK MAIN LOBE AND SIDELOBE DISCRIMINATION IN SPECTRAL DOMAIN IMAGES
Publication number: 20180053070Abstract: A system performs operations including receiving multi-dimensional single-look data from a sensor, applying multi-dimensional complex weighting functions including apodizations from among a general class of such functions to the complex data, so as to induce nonlinear variations in the amplitude and phase of the multi-dimensional spectral image responses, forming a number of features per voxel across a number of multi-dimensional spectral image responses, and using a multi-dimensional non-parametric classifier to form features to discriminate main lobe from sidelobe imaged voxels with the weighting function applied to received data. The operations include identifying each voxel by processing a set of transforms from the multi-dimensional complex weighting functions and outputting a multi-dimensional main lobe binary image, representing main lobe versus sidelobe locations.Type: ApplicationFiled: August 15, 2017Publication date: February 22, 2018Inventors: Richard E. Pavek, Jefferson M. Willey -
Patent number: 9870620Abstract: An image analyzer includes processing circuitry that receives at least one image having a first set of bins and a second set of bins, shifts the first or second set of bins by a number of bins associated with a motion hypothesis to achieve sets of aligned bins, determines a product for each set of aligned bins, compares the products to a product threshold, and identifies an object based on the products that exceed the product threshold.Type: GrantFiled: April 12, 2016Date of Patent: January 16, 2018Assignee: The Johns Hopkins UniversityInventors: Richard E. Pavek, Alexander S. Hughes
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Publication number: 20170343665Abstract: A system performs operations including receiving pairs of sensor signals indicative of imaging of an environment, each pair of sensor signals including (i) a first sensor signal received from a first sensor and including first spatial coordinates and a first signal characteristic and (ii) a second sensor signal including second spatial coordinates and a second signal characteristic. The operations include identifying valid pairs of sensor signals, including determining that an address including the first coordinates of the first sensor signal of a given pair and the second coordinates of the second sensor signal of the given pair corresponds to an admissible address in a set of admissible addresses stored in a data storage.Type: ApplicationFiled: May 26, 2017Publication date: November 30, 2017Inventors: Jefferson M. Willey, Richard E. Pavek
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Publication number: 20170315229Abstract: A low cost, all weather, high definition imaging system for an autonomous vehicle is described. The imaging system generates true target object data suitable for imaging, scene understanding, and all weather navigation of the autonomous vehicle. Data from multiple arrays is fed to a processor that performs data association to form true target detections and target positions. A Boolean associator uses an association method for determining true target detections and target positions to reduce many of the ghosts or incorrect detections that can produce image artifacts. The imaging system provides near optimal imaging in any dense scene for autonomous vehicle navigation, including during visually obscured weather conditions such as fog. The system and method can be applied to variety of imaging technologies, including an RF system, a Lidar system, a sonar system, an ultrasound system, and/or an optical system.Type: ApplicationFiled: July 14, 2017Publication date: November 2, 2017Inventors: Richard E. Pavek, Jefferson M. Willey
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Patent number: 9739881Abstract: A low cost, all weather, high definition RF radar system for an autonomous vehicle is described. The high definition RF radar system generates true target object data suitable for imaging, scene understanding, and all weather navigation of the autonomous vehicle. The high definition RF radar system includes a pair of independent orthogonal linear arrays. Data from both linear arrays is fed to a processor that performs data association to form true target detections and target positions. A Boolean association method for determining true target detections and target positions reduces many of the ghosts or incorrect detections that can produce image artifacts. The high definition RF radar system provides near optimal imaging in any dense scene for autonomous vehicle navigation, including during visually obscured weather conditions such as fog.Type: GrantFiled: March 23, 2017Date of Patent: August 22, 2017Assignee: RFNAV, Inc.Inventors: Richard E. Pavek, Jefferson M. Willey
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Publication number: 20160371849Abstract: An image analyzer includes processing circuitry that receives at least one image having a first set of bins and a second set of bins, shifts the first or second set of bins by a number of bins associated with a motion hypothesis to achieve sets of aligned bins, determines a product for each set of aligned bins, compares the products to a product threshold, and identifies an object based on the products that exceed the product threshold.Type: ApplicationFiled: April 12, 2016Publication date: December 22, 2016Inventors: Richard E. Pavek, Alexander S. Hughes
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Patent number: 9335406Abstract: A detection system includes a photonic module, a radio frequency (RF) module and processing circuitry. The photonic module may be configured to generate an optical tone for modulation in an optical domain prior to conversion to the RF domain. The RF module may be configured to interface with the photonic module to receive a transmission signal converted from the optical domain. The processing circuitry may be configured to interface with the photonic module and RF module to enable an operator to control of the photonic module and the RF module at least with respect to selectively determining a carrier frequency of the optical tone and a modulation technique to be employed with respect to the transmission signal converted from the optical domain.Type: GrantFiled: July 19, 2013Date of Patent: May 10, 2016Assignee: The Johns Hopkins UniversityInventors: Michele B. Lohr, Raymond M. Sova, Michael L. Dennis, Richard E. Pavek, Kevin B. Funk
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Publication number: 20140022119Abstract: A detection system includes a photonic module, a radio frequency (RF) module and processing circuitry. The photonic module may be configured to generate an optical tone for modulation in an optical domain prior to conversion to the RF domain. The RF module may be configured to interface with the photonic module to receive a transmission signal converted from the optical domain. The processing circuitry may be configured to interface with the photonic module and RF module to enable an operator to control of the photonic module and the RF module at least with respect to selectively determining a carrier frequency of the optical tone and a modulation technique to be employed with respect to the transmission signal converted from the optical domain.Type: ApplicationFiled: July 19, 2013Publication date: January 23, 2014Inventors: Michele B. Lohr, Raymond M. Sova, Michael L. Dennis, Richard E. Pavek, Kevin B. Funk
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Patent number: H1122Abstract: A process that derives estimates of range and range-rate during the radar ack of an object, when the radar employes a linear frequency modulated waveform. FM waveforms at the radar wavelength are transmitted. The frequency of the radar echos are measured and the difference between the incoming frequency of radar echos and the local oscillator frequency is estimated. The signal is decomposed into Range and Range rate. Implementation of the decomposition device can either be a sequence of stored software or a hardwired processor.Type: GrantFiled: June 24, 1991Date of Patent: December 1, 1992Assignee: The United States of America as represented by the Secretary of the NavyInventor: Richard E. Pavek
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Patent number: H1797Abstract: Linear frequency modulation having a large time-bandwidth product and an remely linear frequency versus time waveform, is provided by a feedback technique utilizing a linear ramp voltage generator whose output is summed with a correction voltage to drive a voltage controlled oscillator to output the LFM waveform. Part of the LFM waveform is fed back through a digital discriminator for error signal generation and comparison with a preset value associated with the output slope linearity, thus yielding the basis for generating the correction voltage.Type: GrantFiled: November 21, 1983Date of Patent: July 6, 1999Assignee: The United States of America as represented by the Secretary of the NavyInventors: Richard P. Mosser, William H. Suder, III, Richard E. Pavek