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公开(公告)号:US20250080148A1
公开(公告)日:2025-03-06
申请号:US18240471
申请日:2023-08-31
Applicant: L3Harris Technologies, Inc.
Inventor: Brandon J. MILLER , Roy Mark OSBORN , Khanh VO
Abstract: An apparatus comprises: a case enclosing a space; a power connector, extending through the case, to be connected to an external device; a power switch, retained in the space, and configured to be controlled responsive to commands in a UHF/VHF radio signal received by the power switch; a battery, retained in the space, having battery terminals connected to the power connector such that at least one of the battery terminals is connected to the power connector through the power switch; and an antenna, mounted to the case, to receive, and deliver to the power switch, the UHF/VHF radio signal, wherein the commands include a first command to close the power switch to connect the battery to the external device, and a second command to open the power switch to disconnect the battery from the external device.
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公开(公告)号:US20250063543A1
公开(公告)日:2025-02-20
申请号:US18451407
申请日:2023-08-17
Applicant: L3Harris Technologies, Inc.
Inventor: Jeffrey D. BARNES
Abstract: A method comprises: by a DF antenna array, receiving a modulated RF signal and converting the modulated RF signal to multiple modulated RF channels; converting the multiple modulated RF channels to multiple channels of in-phase (I) and quadrature (Q) (I/Q) data; by a side-channel antenna, converting the modulated RF signal to a modulated RF side-channel; converting the modulated RF side-channel to a side-channel of I/Q data; demodulating and decoding the side-channel of the I/Q data to yield demodulated data; remodulating the demodulated data to produce remodulated reference I/Q data; correlating the remodulated reference I/Q data against the multiple channels of the I/Q data to produce correlation results for the multiple channels of the I/Q data; and determining an angle-of-arrival of the modulated RF signal to the DF antenna array based on the correlation results.
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公开(公告)号:US20250039210A1
公开(公告)日:2025-01-30
申请号:US18912009
申请日:2024-10-10
Applicant: L3Harris Technologies, Inc.
Inventor: Mark Rahmes , Kevin Fox , Robert Konczynski , Ziad Chaudhry , Kusay Rukieh , Jody Flieder , Macaulay Osaisai
Abstract: Network security anomaly detection systems and methods include a processor, in communication with the network, receiving network device status information. A variational autoencoder receives the device status information, optimizes the device status information, and determines whether the device status information qualifies as an anomaly. Optimized device status information is compared to either non-anomalous or anomalous device status data in a latent space of the variational autoencoder. The latent space preferably includes an n-D point scatter plot and hidden vector values. The processor optimizes the device status information by generating a plurality of probabilistic models of the device status information and determining which of the plurality of models is optimal. A game theoretic optimization is applied to the plurality of models, and the best model is used to generate the n-D point scatter plot in latent space. An image gradient sobel edge detector preprocesses the device status information prior to optimization.
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公开(公告)号:US12190525B2
公开(公告)日:2025-01-07
申请号:US17552074
申请日:2021-12-15
Applicant: L3Harris Technologies, Inc.
Inventor: Mark Rahmes , Jennifer Spicer , Robert Konczynski , Kusay Rukieh , Jody Flieder , Dustin Ellsworth , Michael Fischer , Timothy Bruce Faulkner
Abstract: Systems and methods for detecting anomalies in aviation data communication systems (e.g., air traffic control surveillance systems), include a processor receiving device status information. A variational autoencoder receives and optimizes the device status information and determines whether it qualifies as an anomaly. Optimized device status information is compared to either non-anomalous or anomalous device status data in a latent space of the variational autoencoder. The latent space preferably includes an n-D point scatter plot and hidden vector values. The processor optimizes the device status information by generating a plurality of probabilistic models of the device status information and determining which of the plurality of models is optimal. A game theoretic optimization is applied to the plurality of models, and the best model is used to generate the n-D point scatter plot in latent space. An image gradient sobel edge detector preprocesses the device status information prior to optimization.
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公开(公告)号:US12149271B2
公开(公告)日:2024-11-19
申请号:US17879260
申请日:2022-08-02
Applicant: L3Harris Technologies, Inc.
Inventor: L. Andrew Gibson , Christian Schlegel , David M. Arnesen
IPC: H04B1/10
Abstract: Systems and methods for mitigating the effect of in-band interference. The methods comprise: receiving a signal comprising at least one interfering signal component; generating a soft value for each symbol in at least one interfering signal component; and using the soft values to cancel at least one interfering signal component from the signal to mitigate the effect of interference. The soft value represents a most likely value for the symbol which is obtained by: determining a probability metric between an actual value of the symbol and each of a plurality of possible symbol values using a scaling value representing an estimate of the noise level in the signal received by the device; generating current local probabilities for the plurality of possible symbol values using the probability metric; and using the current local probabilities to determine the soft value.
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公开(公告)号:US12144118B2
公开(公告)日:2024-11-12
申请号:US17495448
申请日:2021-10-06
Applicant: L3Harris Technologies, Inc.
Inventor: Craig K. Lyon , Craig R. Parker , Christopher D. Jensen , Preston Balfour
Abstract: Systems and methods for detecting an incorrectly attached heat sink component on an electronic device. The system includes one or more temperature sensors secured to the electronic device and a controller unit comprising one or more processors and one or more computer-readable media, the computer-readable media having stored thereon executable instructions that are executable by the one or more processors to perform a method for detecting incorrectly attached heat sink components. The method includes receiving temperature data, calculating a thermal ramp rate, comparing the thermal ramp rate to a predetermined threshold ramp rate, and transmitting a fault signal when the calculated thermal ramp rate exceeds the predetermined threshold ramp rate.
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公开(公告)号:US12130354B2
公开(公告)日:2024-10-29
申请号:US17482017
申请日:2021-09-22
Applicant: L3Harris Technologies, Inc.
Inventor: Brittney Peterson , Daniel Fluitt
CPC classification number: G01S13/867 , H01Q1/22 , H01Q1/405 , H01Q1/526
Abstract: In an embodiment, a radar or other system emitting electromagnetic energy is disposed with an optical system or other imaging system in a common housing. A shielding device or shroud protects the optical or other imaging system from the electromagnetic energy emitted from the radar system. The shielding device captures and dissipates electromagnetic signals reflected from a radome in accordance with structural geometry of the shielding device that may be covered with a radiation-absorbent material (RAM) or coating. The shielding device geometry includes angular faces configured to dissipate the electromagnetic signals.
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公开(公告)号:US20240267603A1
公开(公告)日:2024-08-08
申请号:US18165634
申请日:2023-02-07
Applicant: L3Harris Technologies, Inc.
Inventor: Nathanael D. Hunt , James A. LeBeau , Jon D. Burnsed , Joseph C. Ottney
CPC classification number: H04N23/20 , G02B23/12 , G02B27/0101 , G02B2027/0118 , G02B2027/014
Abstract: Extracting data in pulsed light, the method includes receiving input light at an image intensifier tube. At a power supply coupled to the image intensifier tube, current to the image intensifier tube is varied to implement automatic brightness control of the intensifier tube based on intensity of the input light received at the image intensifier tube. At a signal processor coupled to the power supply, changes in voltage or current supplied by the power supply occurring as a result of changes in the intensity of the input light to the image intensifier tube are detected. Based on the changes in voltage or current supplied by the power supply, data embedded in the input light to the image intensifier tube is extracted.
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公开(公告)号:US20240263890A1
公开(公告)日:2024-08-08
申请号:US18107096
申请日:2023-02-08
Applicant: L3Harris Technologies, Inc.
Inventor: Robert RUFFINO , Matthew SPITZNER , Gregory GORSKI
IPC: F28D20/02
CPC classification number: F28D20/02
Abstract: A PCM heat sink comprises a thermally conductive body member having a plurality of PCM-receiving bores defined therein from at last one surface thereof. A plurality of pre-cast PCM rods are disposed in respective bores have a phase change temperature from solid to liquid at or just below a specified maximum operating temperature. A plurality of sealing members is disposed in respective bores to seal the rods in the bores. The sealing members may be plugs or thin disc-like lids that are brazed, welded or otherwise secured to the body member at the bore openings.
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公开(公告)号:US20240250605A1
公开(公告)日:2024-07-25
申请号:US18100262
申请日:2023-01-23
Applicant: L3Harris Technologies, Inc.
Inventor: Justin Malcolm GRAVES
CPC classification number: H02M1/32 , H02M1/0009 , H02M3/158
Abstract: A method of controlling a switching power supply comprises: generating a pulse train; applying the pulse train to a switching transistor of the switching power supply to cause switching of the switching transistor on and off to convert an input voltage applied to the switching transistor to an output voltage, which rises while switching the switching transistor on and off and falls while not switching the switching transistor on and off; and performing hysteretic voltage control of the output voltage by first controlling dropping pulses of the pulse train so that the output voltage remains between hysteretic voltage thresholds including an overvoltage threshold and an undervoltage threshold that is less than the overvoltage threshold.
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