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公开(公告)号：WO2020142126A3
公开(公告)日：2020-07-09
申请号：PCT/US2019/055547
申请日：2019-10-10
Inventor： LAM, Quang, M. , CHOINIERE, Michael, J. , HORIHAN, George, M. , RICHARDS, David, A. , STOCKWELL, Jason, T.
Abstract: An integrated architecture and its associated sensors and processing software subsystems are defined and developed allowing a conventional unguided bullet to be transformed into a guided bullet without the use of an on-board inertial measurement unit (IMU). Some important SW components of the present disclosure include a target state estimator (TSE); a bullet state estimator (BSE); Multi-Object Tracking and Data Association; NTS GL; and a Data Link. Pre-conversion of two angles and range information of an 01 sensor from spherical coordinates into Cartesian coordinates eliminates the Jacobian dependency in the H matrix for the BSE, thus increasing the miss distance performance accuracy of the bullet target engagement system.
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公开(公告)号：WO2020117944A2
公开(公告)日：2020-06-11
申请号：PCT/US2019/064486
申请日：2019-12-04
Inventor： KRISHNAMURTHI, Kathiravan
IPC: H03D7/14
Abstract: A frequency multiplier, which may include multiple commutator cells, for multiplying an input signal is provided. A frequency doubler is provided that includes at least one transformer. Each of the at least one transformer includes a primary and a secondary. Each secondary includes a center tap. The frequency doubler further includes at least one commutator cell. Each of the at least one commutator cell includes a first differential pair of input terminals and a second differential pair of input terminals. Each primary is connected to the first pair of differential input terminals and each secondary is connected to the second differential pair of input terminals. The frequency doubler further includes at least one current source and at least one ground. The center tap is connected to the at least one ground via the at least one current source.
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公开(公告)号：WO2020112184A1
公开(公告)日：2020-06-04
申请号：PCT/US2019/047024
申请日：2019-08-19
Inventor： LOUCHARD, Eric, M.
IPC: G06K9/00 , G06K9/62 , G06K9/40 , G06K9/54 , G06T3/60 , G06T7/20 , H04N5/247 , B63G13/00 , F41H11/02
Abstract: A projectile detection technique is disclosed. The technique helps improve the self-defense capabilities of strategic platforms such as naval ships against asymmetric threats such as anti-ship missiles (ASMs). These threats can be particularly challenging in a highly cluttered maritime environment, where the threats can be too close for radar to accurately detect. In one example, the projectile detection technique automatically detects ASMs flying above the horizon by using mid-wavelength infrared (MWIR) and visible/near-infrared (VNIR) camera systems, and locating the horizon line and segmenting the imagery into different regions. Projectiles are detected in the near-horizon segment using a Fourier phase-only transform and convolution matched filters to enhance exceedances, then applying multi-frame processing to measure persistence and scintillation (e.g., flicker from missile exhaust) to help filter out background clutter objects. The use of the phase-only transform, matched filters, and multi-frame processing helps detect single -point anomalies and distinguish ASMs from background clutter.
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公开(公告)号：WO2020072134A3
公开(公告)日：2020-04-09
申请号：PCT/US2019/046675
申请日：2019-08-15
Inventor： LACROIX, Daniel P. , MURPHY, Robert H.
Abstract: A multiple resolution focal plane array, the multiple resolution focal plane array having a plurality of bolometers and a readout integrated circuit connected to the plurality of bolometers, wherein the readout integrated circuit is configured to accumulate signal-induced current collected from each bolometer during an integration interval and then transfer the resultant signal onto output taps for readout. The readout integrated circuit is configured to allow a selection between at least two bolometer configurations, a first configuration where bolometers are combined into pixels comprising NxN series/parallel groupings of bolometers and a second configuration where the bolometers are used individually, forming pixels comprising only a single bolometer.
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公开(公告)号：WO2020051012A3
公开(公告)日：2020-03-12
申请号：PCT/US2019/048137
申请日：2019-08-26
Inventor： KAPP, Benjamin , ABRAHAM, Jibu
Abstract: A zero knowledge communications protocol is provided that can unconditionally secure communications sent through a communications network by encrypting all messages, continuously sending noise messages through the network, and routing all network activity through an anonymity network. This combination of components prevent an eavesdropper on the network from garnering any information about when a communication is sent, the contents and statistics of a communication, the sender, or the intended recipient of the communication.
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Patent Agency Ranking
公开(公告)号：WO2020050829A1
公开(公告)日：2020-03-12
申请号：PCT/US2018/049486
申请日：2018-09-05
Inventor： BOWERS II, Michael J. , HARRIS, Don A. , KIPPENY, Tadd C.
Abstract: A system and method for utilizing a carbide-derived carbon (CDC) fiber in solid-phase micro extraction. Optically pumping the carbide-derived carbon (CDC) fiber, as compared to using thermal desorption, enhances performance of the system. CDC provides for a broad based sorbent that is insensitive to high humidity. Optical pumping may be done axially or radially on a modified gas chromatography needle. In some cases, staged, or pulsed, optical pumping is used to drive off solvent or other lower boiling compounds first and then the desorption of the remaining analytes is cleaner and the instrumentation is less likely to be overloaded.
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公开(公告)号：WO2020041025A3
公开(公告)日：2020-02-27
申请号：PCT/US2019/046173
申请日：2019-08-12
Inventor： CHOINIERE, Michael J. , DIMITROV, Dimitre P. , WHITWAM, Jason T.
IPC: G01S17/88
Abstract: An obstacle sensing lidar system includes: a laser source to emit laser radiation in a horizontal fan-beam pattern of at least 60° at an angle of elevation in front of a moving platform; a sensing device having an array including a row of 100 or more near-infrared (NIR) sensors to sense corresponding reflections of the emitted laser radiation off obstacles in front of the moving platform, each NIR sensor being a pixel in the array; and elevation circuitry to adjust the angle of elevation of the emitted laser radiation to a first angle of elevation, a second angle of elevation greater than the first angle of elevation, and a third angle of elevation greater than the second angle of elevation. Sometimes, the first angle of elevation corresponds to the surface level, the second elevation angle corresponds to the platform level, and the third elevation angle corresponds to the horizon level.
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公开(公告)号：WO2020041025A2
公开(公告)日：2020-02-27
申请号：PCT/US2019/046173
申请日：2019-08-12
Inventor： CHOINIERE, Michael J. , DIMITROV, Dimitre P. , WHITWAM, Jason T.
Abstract: An obstacle sensing lidar system includes: a laser source to emit laser radiation in a horizontal fan-beam pattern of at least 60° at an angle of elevation in front of a moving platform; a sensing device having an array including a row of 100 or more near-infrared (NIR) sensors to sense corresponding reflections of the emitted laser radiation off obstacles in front of the moving platform, each NIR sensor being a pixel in the array; and elevation circuitry to adjust the angle of elevation of the emitted laser radiation to a first angle of elevation, a second angle of elevation greater than the first angle of elevation, and a third angle of elevation greater than the second angle of elevation. Sometimes, the first angle of elevation corresponds to the surface level, the second elevation angle corresponds to the platform level, and the third elevation angle corresponds to the horizon level.
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公开(公告)号：WO2020040824A3
公开(公告)日：2020-02-27
申请号：PCT/US2019/028682
申请日：2019-04-23
Inventor： HAIRSTON, Allen, W. , LACROIX, Daniel, P.
IPC: H04N5/33 , G01J5/20 , G01J5/22 , H01L27/146 , H01L31/09 , G08B13/189 , G08B13/19 , G08B13/191
Abstract: Methods and systems for enabling an approximation of true snapshot integration by lowering total power requirements, total detector bias current, integrated charge per detector and detector impedance while allowing for higher ROIC input noise through the use of microbolometer photodetectors, super-pixels, and techniques for their use are herein provided.
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公开(公告)号：WO2019226264A1
公开(公告)日：2019-11-28
申请号：PCT/US2019/028711
申请日：2019-04-23
Inventor： COOPER, David, M. , CHONGOUSHIAN, John, H.
Abstract: A secure wireless transceiver, such as a link 16 transceiver, receives signals using an antenna array having an SOC associated with each antenna element in the array. The SOC's digitize and channelize received data for transmission to a message nulling system that mitigates jamming. The antenna array can be conformal, and can replace an existing Link 16 blade. The disclosed transceiver can be a modified CMN-4 transceiver with digitizing and channelizing moved to the SoC's, and replaced by the nulling system. The transceiver uses applicable TRANSEC information to assign received data to the logical Link 16 channels before nulling, and embodiments apply nulling only to channels of interest, thereby improving the nulling and reducing side lobes. Embodiments distinguish between desired and unwanted signals based on known Link 16 signal features and/or situational awareness, rather than signal amplitudes, thereby enabling nulling of even weak jamming signals.
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