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公开(公告)号：US20230198890A1
公开(公告)日：2023-06-22
申请号：US17555819
申请日：2021-12-20
Inventor： Clifton A. Lin , Hema A. Retty
IPC: H04L45/12 , H04L45/00 , H04L45/42 , H04L43/0864 , H04L43/12
CPC classification number: H04L45/123 , H04L45/22 , H04L45/42 , H04L43/0864 , H04L43/12
Abstract: A dynamic controlling framework that is adapted to dynamically optimize existing routing decisions in an optimized link state routing (OLSR) platform to favor higher-bandwidth, lower-latency links in the active link database. The dynamic controlling framework includes a link probing tool that is in communication with OLSR platform where the link probing tool is adapted to dynamically measure estimated bandwidth, latency scores, or both estimated bandwidth and latency scores of active links in the active link database of the OLSR platform. The dynamic controlling framework includes a plug-in framework that is in communication with the OLSR platform and the link probing tool where the plugin framework is adapted to receive at least one link quality multiplier (LQM) metric computed by the link probing tool and to combine the at least one LQM metric with the OLSR platform's existing link quality (LQ) metric for enhancing route selection by the OLSR platform.
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52.发明授权公开(公告)号：US11682822B1
公开(公告)日：2023-06-20
申请号：US17644934
申请日：2021-12-17
Inventor： Alexander D. Johnson , James F. Fung , William K. Grefe
Abstract: The system for a collapsible direction finding antenna. The antenna comprising a rigid central portion and a plurality of foldable arms. The antenna is aerial/kite lifted once launched from a tube to provide increased line of sight above a surface. The antennas being launchable from a UUV, a user in the field, and the like. The antenna being a full azimuth direction finding antenna. In some cases, operating at a wide matched frequency of 1 to 6 GHz.
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公开(公告)号：US11650033B2
公开(公告)日：2023-05-16
申请号：US17111587
申请日：2020-12-04
Inventor： Jason H. Batchelder , Matthew F. Chrobak , Ryan Dippel
IPC: F42B10/64
CPC classification number: F42B10/64
Abstract: The system and method of a steering a moving object using a control plate-based control actuation system on the moving object. The control plate-based control actuation system having a control plate with at least four fin linkages for connecting at least four fins to the control plate; and three actuators configured to move the control plate to produce movement in two or more of the at least four fins. The system produces roll, pitch, and yaw moments for the moving object using three actuators acting on the control plate and thus moving two or more of the at least four fins all with no loss of performance as compared to systems with four actuators.
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公开(公告)号：US11621925B2
公开(公告)日：2023-04-04
申请号：US16539661
申请日：2019-08-13
Inventor： Matthew J. Sherman , Mark D. Chauvette , Matthew Rasa , Nicholas C. Sherman
IPC: H04L47/72 , H04L41/5003 , H04L7/00 , H04L47/56 , H04W48/16 , H04W72/0446
Abstract: An asynchronous medium access control layer scheduler increases efficiency for directional mesh networks by removing extra overhead in the time slots. The efficiency is increased by dividing time slots into sub-slots to allow for a receiving node to be offset by at least one sub-slot from the transmitting node. This enables the scheduler to more efficiently schedule operations for the nodes so that nodes can be performing other functions rather than waiting to receive a transmission or waiting after transmitting a transmission. The sub-slots may be sized to approximate the transmission propagation time or time of flight delay.
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公开(公告)号：US11619473B2
公开(公告)日：2023-04-04
申请号：US17145455
申请日：2021-01-11
Inventor： Curtis B. Rath
Abstract: The system and method of mixing pitch and roll commands from a flight control computer to produce fin deflections applied to as few as two fins to simultaneously produce both a rolling moment and a pitching moment. The system may be mechanical or digital where actuators can be linear or rotary, digital or analog. Deflections of the fins are generated which produce pitch and roll moments where addition of pitch and roll commands determines deflection commands to be sent to a first fin and subtraction of pitch and roll commands determines deflection commands to be sent to a second fin.
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Patent Agency Ranking
公开(公告)号：US11597485B2
公开(公告)日：2023-03-07
申请号：US17108552
申请日：2020-12-01
Abstract: Techniques are disclosed for providing retractable control fins on an underwater vehicle. The retractable control fins can be extended away from a main hull portion of the underwater vehicle and retracted inwards to a stowage region within the hull portion to protect the fins from damage and reduce an overall outer diameter (e.g., in the case of a cylindrical body) of the underwater vehicle. In some embodiments, the control fins are folded inwards to reduce the vehicle diameter. In other embodiments, the control fins are pulled inwards using a rotating structure designed to slide the control fins through an opening and into an inner portion of the hull to reduce the vehicle diameter. The retraction of the fins through the various retraction mechanisms reduces the envelope diameter of the underwater vehicle.
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公开(公告)号：US11558810B2
公开(公告)日：2023-01-17
申请号：US17142800
申请日：2021-01-06
Inventor： Joshua W. Robinson , Joseph M. Carmack , Scott A Kuzdeba , James M. Stankowicz, Jr.
Abstract: A system whereby individual RF emitter devices are distinguished in real-world environments through deep-learning comprising an RF receiver for receiving RF signals from a plurality of individual devices; a preprocessor configured to produce complex-valued In-phase (I) and Quadrature (Q) IQ signal sample representations; a two-stage Augmented Dilated Causal Convolution (ADCC) network comprising a stack of dilated causal convolution layers and traditional convolutional layers configured to process I and Q components of the complex IQ samples; transfer learning comprising a classifier and a cluster embedding dense layer; unsupervised clustering whereby the RF signals are grouped according to a device that transmitted the RF signal; and an output identifying the individual RF emitter device whereby the individual RF emitter device is distinguished in the real-world environment.
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58.发明授权公开(公告)号：US11558056B2
公开(公告)日：2023-01-17
申请号：US16888035
申请日：2020-05-29
Inventor： Jason H. Branch , Karl P. Herb , Danny L. Plemons
IPC: H03K19/173 , B64D7/00 , F41H11/02 , H03F3/04
Abstract: A sequencer for use with a countermeasure defense system includes an input signal indicative of firing an expendable, a circuit card that receives the input signal indicative of firing the expendable and an output analog signal from the circuit card that fires the expendable. The parameters of the output analog signal correspond to parameters of a digital waveform.
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公开(公告)号：US20220407524A1
公开(公告)日：2022-12-22
申请号：US17351529
申请日：2021-06-18
Inventor： Shailendra Srinivas , Joseph D. Cali , Steven E. Turner
IPC: H03L7/093
Abstract: A direct digital synthesizer (DDS) circuit. The circuit includes a first input to receive a first fixed frequency clock signal having a first frequency, a second input to receive a second fixed frequency clock signal having a second frequency lower than the first frequency, and an output to provide an output frequency that is based at least in part on a frequency control word (FCW). The DDS circuit may include a frequency correction circuit having a first input to receive the first clock signal, a second input to receive the second clock signal, and a third input to receive the FCW, and an output to provide a frequency error of the first clock signal, the frequency error determined using the second clock signal and FCW. Alternatively, or in addition to, the DDS circuit may include an all-digital phase lock loop to correct for frequency wander of the first clock signal.
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公开(公告)号：US20220397360A1
公开(公告)日：2022-12-15
申请号：US17345551
申请日：2021-06-11
Inventor： Danny L. Plemons , Mark J. Dube , Daniel M. Gilbert
Abstract: Various systems and methods for leveraging legacy countermeasure dispensing systems (CMDSs). The legacy CMDSs are leveraged through the expansion of breechplates and magazines in a CMDS by expanding the amount of expendables carried by a CMDS while still maintaining the legacy sequencer and dispenser in a legacy military platform, such as an aircraft. In addition, various circuitry systems are included in a circuit card of the breechplate for duplicating and/or expanding the firing lines provided in a legacy CMDS.
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