Patents Assigned to Trustees of Stevens Institute of Technology
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Patent number: 11330984Abstract: A sensing system includes a sensor including a flexible substrate and a graphene oxide sensing element deposited on the flexible substrate. The graphene oxide sensing element has first and second sides. First and second electrical connectors coupled to the first and second sides of the graphene oxide sensing element, respectively. A power source is coupled to the first and second electrical connectors of the sensor and is adapted to apply a constant voltage to the sensor. The sensing system also includes a measurement element measuring a current in the graphene oxide sensing element due to the constant voltage and a calculation element calculating an electrical resistance of the graphene oxide sensing element based on the electrical current and the constant voltage and calculating a condition at a location of the sensor based on a relationship between the electrical resistance and the condition for the graphene oxide sensing element.Type: GrantFiled: June 17, 2016Date of Patent: May 17, 2022Assignees: THE TRUSTEES OF THE STEVENS INSTITUTE OF TECHNOLOGY, FLEXTRAPOWER, INC.Inventors: Linh Tung Le, Trung Thanh Dinh-Trong, Woo Young Lee, Eric Peter Boon, Nguyen An Nguyen
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Publication number: 20220128514Abstract: Embodiments of the invention include a system and method for detecting wood-boring species of insects in a structure (16), involving one or more primary (14) and reference (18) sensors and a signal conditioning and acquisition device (22) capable of being coupled to the sensors (14, 18). The system (10) also includes a processor (24) capable of being coupled to a non-transitory, computer-readable storage medium that includes program logic for execution by the processor (24). The program logic includes a logic module that receives signals originating from the sensors (14, 18) and discriminates between noise generated by any wood boring species in the structure and extraneous noise unrelated to the wood boring species of insects. The extraction of signal features based on pulse duration, signal spectra and signal envelope spectra can be used for insect pulse discrimination.Type: ApplicationFiled: February 11, 2020Publication date: April 28, 2022Applicant: THE TRUSTEES OF THE STEVENS INSTITUTE OF TECHNOLOGYInventors: Hady SALLOUM, Alexander SEDUNOV, Nikolay Sedunov, Alexander SUTIN, Alexander Yakubovskiy
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Publication number: 20220122378Abstract: When one looks at a face, one cannot help but ‘read’ it: in the blink of an eye, people form reliable impressions of both transient psychological states (e.g., happiness) and stable character traits (e.g., trustworthiness). Such impressions are irresistible, formed with high levels of consensus, and important for social decisions. Disclosed herein is a large-scale data-driven methodology that allows for the easy manipulation of social trait information in hyper-realistic face images. For example, a given face image could be made to look more or less trustworthy by moving a simple slider. Further, this method can not only generate faces, but can ‘read’ faces as well, providing confidence estimates of different social traits for any arbitrary image. The disclosed approach is both fast and accurate, and represents a paradigm shift in facial photo manipulation.Type: ApplicationFiled: January 4, 2022Publication date: April 21, 2022Applicants: THE TRUSTEES OF PRINCETON UNIVERSITY, THE TRUSTEES OF THE STEVENS INSTITUTE OF TECHNOLOGYInventors: Alexander T. Todorov, Stefan D. Uddenberg, Joshua C. Peterson, Thomas L. Griffiths, Jordan W. Suchow
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Publication number: 20220075238Abstract: A periodically poled microring resonator structure, a method for fabrication of the periodically poled microring resonator structure, and a method to achieve giant single-photon nonlinearity are disclosed. The strong single-photon nonlinearity in the microring resonator structure is achieved through its optimized design and fabrication procedures.Type: ApplicationFiled: September 7, 2021Publication date: March 10, 2022Applicant: THE TRUSTEES OF THE STEVENS INSTITUTE OF TECHNOLOGYInventors: Yuping HUANG, Jiayang Chen
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Patent number: 11264775Abstract: Disclosed is a system and method for remote sensing, surface profiling, object identification, and aiming based on two-photon population inversion and subsequent photon backscattering enhanced by superradiance using two co-propagating pump waves. The present disclosure enables efficient and highly-directional photon backscattering by generating the pump waves in properly pulsed time-frequency modes, proper spatial modes, with proper group-velocity difference in air. The pump waves are relatively delayed in a tunable pulse delay device and launched to free space along a desirable direction using a laser-pointing device. When the pump waves overlap in air, signal photons will be created through two-photon driven superradiant backscattering if target gas molecules are present. The backscattered signal photons propagate back, picked using optical filters, and detected.Type: GrantFiled: October 22, 2020Date of Patent: March 1, 2022Assignee: THE TRUSTEES OF THE STEVENS INSTITUTE OF TECHNOLOGYInventor: Yuping Huang
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Patent number: 11250245Abstract: When one looks at a face, one cannot help but ‘read’ it: in the blink of an eye, people form reliable impressions of both transient psychological states (e.g., happiness) and stable character traits (e.g., trustworthiness). Such impressions are irresistible, formed with high levels of consensus, and important for social decisions. Disclosed herein is a large-scale data-driven methodology that allows for the easy manipulation of social trait information in hyper-realistic face images. For example, a given face image could be made to look more or less trustworthy by moving a simple slider. Further, this method can not only generate faces, but can ‘read’ faces as well, providing confidence estimates of different social traits for any arbitrary image. The disclosed approach is both fast and accurate, and represents a paradigm shift in facial photo manipulation.Type: GrantFiled: September 21, 2020Date of Patent: February 15, 2022Assignees: THE TRUSTEES OF PRINCEONT UNIVERSITY, THE TRUSTEES OF THE STEVENS INSTITUTE OF TECHNOLOGYInventors: Alexander T. Todorov, Stefan D. Uddenberg, Joshua C. Peterson, Thomas L. Griffiths, Jordan W. Suchow
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Publication number: 20210395675Abstract: Methods for the development and integration of multiple apparatuses and methods for achieving administration of stem cell therapies include precision manufacturing of tissue scaffolds and/or bioreactor substrates. The nano/microscale fiber material extrusion typifying the electrospinning process is married with the fiber alignment and layering characteristic of an additive manufacturing process. The method generates porous fibrous 3-D meshes with precision controlled structures from biopolymer melts and solutions and gels, blends, and suspensions with and without cells. A method of tracking the migration histories and shapes of stem cells on scaffold surfaces relies on immunofluorescent imaging and automated algorithms based on machine learning.Type: ApplicationFiled: June 30, 2021Publication date: December 23, 2021Applicant: THE TRUSTEES OF THE STEVENS INSTITUTE OF TECHNOLOGYInventors: Filippos Tourlomousis, Robert Chang, Dilhan Kalyon
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Publication number: 20210356306Abstract: Methods and apparatus for tracking fluid flows are disclosed. Fast-moving fluids can be non-invasively tracked, including those at supersonic and hypersonic speeds. To track such flows, atoms of an inert gas can be introduced into the fluid. To monitor the tracer, a laser excites a series of molecules along a “write line,” which can be tracked by a series of cameras in order to estimate flow velocity.Type: ApplicationFiled: May 13, 2021Publication date: November 18, 2021Applicant: THE TRUSTEES OF THE STEVENS INSTITUTE OF TECHNOLOGYInventor: Nick Parziale
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Publication number: 20210308321Abstract: A scaffold has a spiral configuration and gradient porosity designed to facilitate the healing of bone injuries. To make the scaffold, a sheet of polymeric material or the like is rolled into a spiral shape. In one embodiment, the resulting scaffold has an outer porous layer with high porosity, and a comparatively less porous inner layer in order to facilitate vascularization and promote recovery. The pores can be filled with a degradable polymer and/or growth factors, bioactive molecules, bactericidal drugs and/or other compositions to further promote recovery.Type: ApplicationFiled: April 2, 2021Publication date: October 7, 2021Applicant: THE TRUSTEES OF THE STEVENS INSTITUTE OF TECHNOLOGYInventors: Alok Kumar, Gan Zhou, Xiaojun Yu
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Publication number: 20210255314Abstract: The present disclosure relates to an apparatus and method for synthetically making an ultra-wide imaging bandwidth in millimeter-wave frequencies, resulting in improved image resolutions to values previously unattained. The synthetic approach sums up a number of available sub-bands (channels) to build an unavailable ultra-wideband system. Each channel contains an antenna unit which is optimized for operation within that specific sub-band. The number and position of the channels can be adjusted to cover any frequency range as required for the specific application.Type: ApplicationFiled: April 12, 2021Publication date: August 19, 2021Applicant: THE TRUSTEES OF THE STEVENS INSTITUTE OF TECHNOLOGYInventors: Negar Tavassolian, Amir Mirbeik-Sabzevari
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Publication number: 20210250420Abstract: A system includes a device that is disposed within an environment and is adapted to communicate over a radio frequency communication link. The system also includes a wireless access point disposed within the environment, including a wireless transceiver in communication with the device over a radio frequency communication link using a plurality of channels, and recording a channel state information data set for the radio frequency communication link. The system also includes a monitoring device including a memory storing a plurality of activity profiles, each of which includes an activity and a channel state information profile corresponding to the activity, and a processor receiving, from the wireless access point, the channel state information data set and determining, based on a comparison of the channel state information data set to the channel state information profile of each of the plurality of activity profiles, the activity of the person in the environment.Type: ApplicationFiled: March 31, 2021Publication date: August 12, 2021Applicants: THE TRUSTEES OF THE STEVENS INSTITUTE OF TECHNOLOGY, RUTGERS, THE STATE UNIVERSITY OF NEW JERSEYInventors: Yingying Chen, Jie Yang, Yan Wang, Jian Liu, Marco Gruteser
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Patent number: 11078459Abstract: Methods for the development and integration of multiple apparatuses and methods for achieving administration of stem cell therapies include precision manufacturing of tissue scaffolds and/or bioreactor substrates. The nano/microscale fiber material extrusion typifying the electrospinning process is married with the fiber alignment and layering characteristic of an additive manufacturing process. The method generates porous fibrous 3-D meshes with precision controlled structures from biopolymer melts and solutions and gels, blends, and suspensions with and without cells. A method of tracking the migration histories and shapes of stem cells on scaffold surfaces relies on immunofluorescent imaging and automated algorithms based on machine learning.Type: GrantFiled: August 15, 2018Date of Patent: August 3, 2021Assignee: THE TRUSTEES OF THE STEVENS INSTITUTE OF TECHNOLOGYInventors: Filippos Tourlomousis, Robert Chang, Dilhan Kalyon
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Publication number: 20210156684Abstract: The present disclosure relates to a generally-applicable measurement technique based on coherent quantum enhancement effects and provides embodiments with nonlinear optics. The technique utilizes parametric nonlinear processes where the information-carrying electromagnetic quanta in a number of electromagnetic modes are converted phase coherently to signature quanta in a single mode or a few modes. The phase coherence means that while the quanta before conversion may have unequal or uncertain phase values across the modes, the signature quanta converted from those different modes have the (near) uniform phase. This can lead to significant increase in the signal to noise ratio in detecting weak signal buried in strong background noise. Applications can be found in remote sensing, ranging, biological imaging, field imaging, target detection and identification, covert communications, and other fields that can benefit from improved signal to noise ratios by using the phase coherent effect.Type: ApplicationFiled: February 1, 2021Publication date: May 27, 2021Applicant: THE TRUSTEES OF THE STEVENS INSTITUTE OF TECHNOLOGYInventor: Yuping Huang
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Publication number: 20210141609Abstract: A device for generation of genuine random numbers, uses quantum stochastic processes in optical parametric nonlinear media. The dimensionality of the random numbers is varied from 2 to over 100,000. Their statistical properties, including the correlation function amongst random numbers, are tailored using linear and nonlinear optical circuits following the parametric nonlinear media. Both the generation and manipulation of random numbers can be integrated on a single nanophotonics chip. By incorporating optoelectric effects, fast streams of random numbers can be created in custom statistical properties, which can be updated or reconfigured in real time, such as at 10 GHz speed. The unpredictability of the random numbers is quantifying by evaluating their min-entropy. The genuineness of quantum random numbers is tested using both statistical tools and independently verified by measuring the quantum entanglement between the photons in real time reducing vulnerability to hostile attack.Type: ApplicationFiled: June 27, 2018Publication date: May 13, 2021Applicant: THE TRUSTEES OF THE STEVENS INSTITUTE OF TECHNOLOGYInventors: Yuping Huang, Yong Meng Sua, Jiayang Chen, Lac Thi Thanh Nguyen
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Patent number: 10992774Abstract: A system includes a device that is disposed within an environment and is adapted to communicate over a radio frequency communication link. The system also includes a wireless access point disposed within the environment, including a wireless transceiver in communication with the device over a radio frequency communication link using a plurality of channels, and recording a channel state information data set for the radio frequency communication link. The system also includes a monitoring device including a memory storing a plurality of activity profiles, each of which includes an activity and a channel state information profile corresponding to the activity, and a processor receiving, from the wireless access point, the channel state information data set and determining, based on a comparison of the channel state information data set to the channel state information profile of each of the plurality of activity profiles, the activity of the person in the environment.Type: GrantFiled: January 17, 2020Date of Patent: April 27, 2021Assignees: THE TRUSTEES OF THE STEVENS INSTITUTE OF TECHNOLOGY, RUTGERS, THE STATE UNIVERSITY OF NEW JERSEYInventors: Yingying Chen, Jie Yang, Yan Wang, Jian Liu, Marco Gruteser
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Publication number: 20210116543Abstract: Approaches, apparatuses and methods for LIDAR applications based on mode-selective frequency conversion are disclosed. In one embodiment, a pulse generation unit includes a mode-locked fiber laser and optical fiber bandpass filters. In the second embodiment, a LIDAR transceiver unit based on a simple, bidirectional monostatic coaxial arrangement using off-the-shelf tele-com-grade optical components includes optical fiber, fiber collimator, optical fiber circulator, optical fiber isolator and wavelength combiner. A frequency conversion detection system with single photon sensitivity includes a nonlinear optical material for frequency conversion, coupled with optimized pump pulses for efficient conversion and noise rejection, optical band pass filters for noise rejection and a single photon detection system for detecting the converted signal.Type: ApplicationFiled: June 13, 2019Publication date: April 22, 2021Applicant: THE TRUSTEES OF THE STEVENS INSTITUTE OF TECHNOLOGYInventors: Yuping HUANG, Yong Meng SUA, Amin SHAHVERDI
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Publication number: 20210111532Abstract: Disclosed is a system and method for remote sensing, surface profiling, object identification, and aiming based on two-photon population inversion and subsequent photon backscattering enhanced by superradiance using two co-propagating pump waves. The present disclosure enables efficient and highly-directional photon backscattering by generating the pump waves in properly pulsed time-frequency modes, proper spatial modes, with proper group-velocity difference in air. The pump waves are relatively delayed in a tunable pulse delay device and launched to free space along a desirable direction using a laser-pointing device. When the pump waves overlap in air, signal photons will be created through two-photon driven superradiant backscattering if target gas molecules are present. The backscattered signal photons propagate back, picked using optical filters, and detected.Type: ApplicationFiled: October 22, 2020Publication date: April 15, 2021Applicant: THE TRUSTEES OF THE STEVENS INSTITUTE OF TECHNOLOGYInventor: Yuping Huang
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Patent number: 10976428Abstract: The present disclosure relates to an apparatus and method for synthetically making an ultra-wide imaging bandwidth in millimeter-wave frequencies, resulting in improved image resolutions to values previously unattained. The synthetic approach sums up a number of available sub-bands (channels) to build an unavailable ultra-wideband system. Each channel contains an antenna unit which is optimized for operation within that specific sub-band. The number and position of the channels can be adjusted to cover any frequency range as required for the specific application.Type: GrantFiled: February 13, 2019Date of Patent: April 13, 2021Assignee: THE TRUSTEES OF THE STEVENS INSTITUTE OF TECHNOLOGYInventors: Negar Tavassolian, Amir Mirbeik-Sabzevari
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Publication number: 20210075023Abstract: Flexible air-breathing microscale fuel cells are produced using ion exchange polymer membranes without silicon substrates or other rigid components. The microscale fuel cells provide long-life energy supply sources in portable electronics due to reduced volume, high energy density, and low cost. More particularly, the microscale fuel cell has a direct hydrogen flow-through porous anode electrode with a pair of air-breathing cathodes.Type: ApplicationFiled: November 20, 2020Publication date: March 11, 2021Applicant: THE TRUSTEES OF THE STEVENS INSTITUTE OF TECHNOLOGYInventors: Ronald Besser, Seyed Reza Mahmoodi
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Patent number: 10935379Abstract: The present disclosure relates to a generally-applicable measurement technique based on coherent quantum enhancement effects and provides embodiments with nonlinear optics. The technique utilizes parametric nonlinear processes where the information-carrying electromagnetic quanta in a number of electromagnetic modes are converted phase coherently to signature quanta in a single mode or a few modes. The phase coherence means that while the quanta before conversion may have unequal or uncertain phase values across the modes, the signature quanta converted from those different modes have the (near) uniform phase. This can lead to significant increase in the signal to noise ratio in detecting weak signal buried in strong background noise. Applications can be found in remote sensing, ranging, biological imaging, field imaging, target detection and identification, covert communications, and other fields that can benefit from improved signal to noise ratios by using the phase coherent effect.Type: GrantFiled: November 28, 2017Date of Patent: March 2, 2021Assignee: The Trustees of the Stevens Institute of TechnologyInventor: Yuping Huang