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公开(公告)号：US20210074595A1
公开(公告)日：2021-03-11
申请号：US16564676
申请日：2019-09-09
Inventor： Jeffrey A. Zimmerman , Landon J. Caley , Richard J. Ferguson
Abstract: A method for modifying an LGA package after production is described herein. Generally, a modification of an LGA package by shorting two contacts together via a trace made of a robust conductive metal such as tungsten or platinum. Specifically, the present disclosure relates to a method for modifying a LGA package shorting two contacts together using FIB deposition via a gallium ion beam.
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公开(公告)号：US10935668B2
公开(公告)日：2021-03-02
申请号：US16114973
申请日：2018-08-28
Inventor： Richard E. Clymer
Abstract: An antenna receiver has antenna elements that are arranged in an array and spaced apart from each other at a distance greater than one-half wavelength of the highest operating frequency of a signal that is to be detected by the antenna receiver. The antenna receiver has geolocation logic that uses the inter-element phase difference measurements to obtain a location of the signal source. The change in the inter-element phase differences enables the elements to be spaced apart at great distances, which is beneficial for the physical construction of the platform, as the elements may be easily placed at convenient locations for conformal aerodynamic properties.
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公开(公告)号：US20210057824A1
公开(公告)日：2021-02-25
申请号：US16545031
申请日：2019-08-20
Inventor： Dean W. HOWARTH , Michael J. SHAW
Abstract: The system and method for an additively manufactured radome for a cavity backed notch comprising at least one lattice structure wherein the antenna works over any 4:1 bandwidth, from VHF to mmW. In some cases, the radome lattice has a density that changes with distance from the antenna. In some cases multiple antennas are used for direction finding. The radome may be additively manufactured from glass-loaded polymer or other materials having a low dielectric constant. In some cases, the radome has a dielectric contract that approaches that of air.
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公开(公告)号：US10931899B1
公开(公告)日：2021-02-23
申请号：US16717010
申请日：2019-12-17
Inventor： Michael J. DeWeert
IPC: H04N5/357
Abstract: Systems and methods for computationally simulating and optimizing shearography systems are provided. The systems and methods for simulation and optimization avoid ray tracing, and, instead, implement a phase screen approach to image computation. The systems and methods include physics-based surface texture and surface motion simulations, the application of phase screens to computer-generated simulations of shearographic remote sensing, and the inclusion of de-polarization due to multiple scattering and birefringence at a surface being imaged. The systems and methods include further greatly optimize diffraction computations by treating an optical transfer function (OTF) of an arbitrary aperture as a sum of separable OTFs.
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公开(公告)号：US10911005B2
公开(公告)日：2021-02-02
申请号：US16427596
申请日：2019-05-31
Inventor： Kathiravan Krishnamurthi
Abstract: A transistor amplifier includes at least one differential pair of transistors and a plurality of transformers having a primary winding and a tapped secondary winding. The secondary winding is connected across emitters or sources of each transistor pair. The tap of each secondary has a current source. The primary windings of the plurality of transformers are connected in series. The transistor bases or gates are alternating current (AC) grounded. The collector or drain terminal pairs are connected in parallel. The transistor amplifier exhibits improved input impedance and improved linearity.
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Patent Agency Ranking
公开(公告)号：US20210011156A1
公开(公告)日：2021-01-14
申请号：US16507832
申请日：2019-07-10
Inventor： Apurva N. Mody , David J. Couto , Prabahan Basu , Michael J. Shea
IPC: G01S17/10 , G01S7/52 , H04B10/556 , H04B1/69
Abstract: A multi-user system to simultaneously perform operations such as communication, RADAR, Light Detection and Ranging (LIDAR) and Relative Navigation (RELNAV). The techniques according to an embodiment includes generating a Fourier based orthogonal chirp sequence of length P, a prime number greater than the number of users targeted for communication. The orthogonal chirp sequence is based on an identifier, in the range of one to P−1, associated with one of the targeted users. The method further includes using the orthogonal chirp sequence to generate a spread user signal based on a message directed to the one targeted users. The method further includes generating a sequence of training pulses for insertion into the spread user signal to facilitate reception of the signal. The method further includes transmitting and receiving a reflection of the spread user signal from one of the targeted users, the reflection used to detect and range the user.
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公开(公告)号：US10887334B2
公开(公告)日：2021-01-05
申请号：US16123099
申请日：2018-09-06
Inventor： Peter D. Lebling , Clifton A. Lin , Andrew J. Macbeth , Karen D. Uttecht
Abstract: A cybersecurity system and method utilizing SOUND reputation, where a set of reputations are associated with each actor on a network. The actors on a network may be users, hosts, applications, and the like. The associated reputations are aggregated and updated as new information about an actor's activity is reported according to a defined and modifiable protocol, or policy. The actor's activity may be reported by one or more threat sensors. The effect of a particular misbehavior can be tuned to match the needs of the specific network. When a bad actor's reputation sinks too low, the system can take whatever action is appropriate: reports can be sent, an operator can be notified, the offender can be cut off from the network, or the like.
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公开(公告)号：US10887091B2
公开(公告)日：2021-01-05
申请号：US16200984
申请日：2018-11-27
Inventor： Benjamin Kapp , Jibu Abraham
Abstract: Techniques are disclosed for multi-hop security amplification. The techniques disclosed provide multi-hop security amplification by applying a secret sharing scheme to data as the data is routed within a network to an intended recipient device. In an embodiment, a sending device divides the data into shares based on a secret sharing scheme, and sends the shares to respective network nodes in a network. These network nodes then divide their respective shares into lower-level shares based on the secret sharing scheme, and route the lower-level shares to downstream network nodes for further routing to the intended recipient device. The intended recipient device receives some or all of the lower-level shares and reconstructs the data from the received lower-level shares. In an embodiment, the secret sharing scheme is a threshold-based secret sharing scheme, such as Shamir's secret sharing scheme.
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公开(公告)号：US10884095B2
公开(公告)日：2021-01-05
申请号：US16352404
申请日：2019-03-13
Inventor： Richard Schiffmiller , Lawrence Sheldon
Abstract: Techniques are provided for geolocation of a radar emitting source. A methodology implementing the techniques according to an embodiment includes calculating time difference of arrival (TDOAs) of ground emitter radar pulses, within a dwell period, between two long baseline interferometer (LBI) antennas. The TDOA calculations are based on a precision estimate of the time of arrival of the radar pulses. The method further includes calculating an LBI phase wrap disambiguation factor based on (1) the TDOAs, (2) an average of frequencies of the radar pulses within the dwell period, and (3) an average of phase shifts of the radar pulses between the LBI antennas within the dwell period. The method further includes mapping a curve of points onto the surface of the earth based on an LBI cone angle calculation employing the LBI phase wrap disambiguation factor. The curve of points is associated with a geolocation of the ground emitter.
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公开(公告)号：US10859503B2
公开(公告)日：2020-12-08
申请号：US16221841
申请日：2018-12-17
Inventor： Yannick C. Morel , Peter A. Budni , Peter A. Ketteridge , Michael L. Lemons
IPC: G01N21/71
Abstract: The system and method for enhancing and suppressing radio frequency (RF) emissions in a laser induced plasma system using a second laser. A first igniter laser is used at short pulse widths and a second heater laser is used at longer pulse widths. By varying the energy of the heater laser and/or the timing of the arrival of the heater laser with respect to the igniter laser suppression and/or enhancement of the radio frequency (RF) emission from the induced plasma system is possible.
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