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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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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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Patent Agency Ranking
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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公开(公告)号：US10859359B1
公开(公告)日：2020-12-08
申请号：US16412539
申请日：2019-05-15
Inventor： Michael J. Shaw , Benjamin K. Campbell , Ryan Dippel , Matthew M. Hall , Andrew Kaye , John A. Mitchell , William R. Samuels , Timothy W. Spence , Heather A. Wickman
IPC: F42C15/188
Abstract: The system and method for forming an ignition sequencer comprising two inseparable portions (a body and an armature) where an armature is articulable with respect to a body to allow for the existence of no less than two distinct stages of the ignition sequence through the articulating motion of the additively-manufactured armature. The ignition sequencer assembly architecture allows for installation of an internal energetic compound while all components are assembled and interconnected. The ignition sequencer assembly architecture allows for installation into a next higher-level assembly using a single, uniaxial, force.
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公开(公告)号：US20200379842A1
公开(公告)日：2020-12-03
申请号：US16425377
申请日：2019-05-29
Inventor： Jason F. Ross
IPC: G06F11/10 , G11C11/56 , G11C11/16 , G06F1/3206 , G06F1/3287
Abstract: A disclosed apparatus and method reduce the likelihood of multiple bit single event upset (SEU) errors in space-deployed memory devices and memory macros, without requiring novel, specialized memory designs and without significant added cost or performance loss. For each memory, a bit selection layer effectively increases the mux of the memory bit table, thereby reducing the word size while increasing the word capacity, without changing the total memory capacity. As a result, the separation between the physical bit storage locations for each word is increased, thereby reducing the likelihood of multiple bit SEU errors. A buffer can be implemented if the memory lacks individual bit write control. The memory can be implemented in a core IC of an MCM-HIC, and the bit selection layer and/or buffer can be implemented in a chiplet or chiplets of the MCM-HIC.
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公开(公告)号：US10852116B2
公开(公告)日：2020-12-01
申请号：US16294505
申请日：2019-03-06
Inventor： Francis M. Feda
Abstract: A fuze setter interface for substantially simultaneously and wirelessly transferring power and data between a fuze setter and fuze. The fuze setter interface includes separate power and communications interfaces. In the power interface, an induction coil is provided in each of the fuze setter and fuze. Power is transferred by magnetic field coupling between the induction coils. In the communications interface, a communications member is provided in each of the fuze setter and fuze, along with appropriate functions to generate alternating-current (AC) waveforms, and condition, modulate or demodulate signals. In one example, both communications members are induction coils that transfer data by magnetic field coupling. In another example, both communications members are radio-frequency (RF) transceivers that transfer data by radio signal. The RF transceiver in the fuze may be a Height of Burst (HoB) sensor. In another example, both communications members are optical transceivers that transfer data by optical signal.
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公开(公告)号：US20200371159A1
公开(公告)日：2020-11-26
申请号：US16420362
申请日：2019-05-23
Inventor： Richard J. FERGUSON , Marla J. LASSA , Dean SARIDAKIS
IPC: G01R31/317 , G01R31/3183
Abstract: The system and method of using a debug interface recorder and replay unit for debugging and testing devices of interest such as integrated circuits by using a debug interface buffer controller to receive, record, and replay sequences of instructions to the integrated circuit. This is particularly useful for deployed devices that are difficult or dangerous to access. This is also beneficial for devices that cannot be reached (e.g., after launch). By recording sequences and storing them for later use, and by communicating commands and configuration settings to a device, system maintenance and troubleshooting is accomplished saving valuable time and money without requiring physical access to the device of interest.
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