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公开(公告)号：US11518005B2
公开(公告)日：2022-12-06
申请号：US16217946
申请日：2018-12-12
Inventor： Wallace E. Woodman, III , Earle R. Box, Jr.
Abstract: Apparatus and method are disclosed for engaging a guide pin for installation or removal. The tool has a housing with a plunger positioned within the housing. A support tube has at least two extensions that protrude from the housing when an engagement mechanism is depressed and grips the guide pin when the engagement mechanism is released.
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公开(公告)号：US11509274B2
公开(公告)日：2022-11-22
申请号：US17224701
申请日：2021-04-07
Inventor： Michael H. Stockmaster , Ryan D. Downey
Abstract: Techniques are provided for automatic gain control processing to reduce adverse effects associated with clipped samples resulting from conversion of analog signals to digital signals. A methodology according to an embodiment includes identifying a clipped sample of the digital signal, for example by comparison of the digitized sample values to a threshold value associated with a full scale value of the converter. The method also includes applying a window function to portions of the digital signal. The window function is configured to attenuate samples of the digital signal within a region centered on the identified clipped sample. A Hilbert finite impulse response (FIR) filter may be applied to the digital signal prior to applying the window function. Parameters of the window function are selected based on frequency response characteristics of the FIR filter and on signal to noise ratio requirements of an application that receives the windowed digital signal.
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公开(公告)号：US11508086B2
公开(公告)日：2022-11-22
申请号：US17087999
申请日：2020-11-03
Inventor： Simone B. Bortolami , Helen F. Webb
Abstract: Techniques are provided for image-based estimation of the orientation of an airborne platform. A methodology implementing the techniques according to an embodiment includes rotating an image, provided by a camera on the platform, by a selected rotation angle. The method also includes computing an intensity gradient image based on the rotated image. The method further includes extracting a left quarter segment and a right quarter segment of the intensity gradient image. The method further includes flipping one of the extracted segments about a vertical axis through that segment and comparing the non-flipped segment to the flipped segment to generate a matching score. The comparison may be based on a correlation between the flipped segment and the non-flipped segment. The process may be repeated for additional rotation angles and the rotation angle associated with the highest matching score is selected as the estimated orientation angle of the platform.
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664.发明授权公开(公告)号：US11482834B1
公开(公告)日：2022-10-25
申请号：US17218879
申请日：2021-03-31
Inventor： Leonard A. Pomeranz , Scott D. Setzler , Jojit C. Torcedo
Abstract: A laser system produces pulses having wavelengths between 2000 nm and 2100 nm, peak output powers greater than 1 kW, average powers greater than 10 W, pulse widths variable from 0.5 to 10 nsec, pulse repetition frequencies variable from 0.1 to over 2 MHz, and a pulse extinction of at least 60 dB. Pulses from a diode laser having a wavelength between 1000 nm and 1100 nm are amplified by at least one fiberoptic amplifier and applied as the pump input to an Optical Parametric Amplifier (OPA). A cw laser provides an OPA seed input at a wavelength between 2000 nm and 2200 nm. The idler output of the OPA having difference frequency wavelength between 2000 nm and 2100 nm is further amplified by a crystal amplifier. The fiberoptic amplifier can include Ytterbium-doped fiberoptic. The crystal amplifier can include a Ho:YAG, Ho:YLF, Ho:LuAG, and/or a Ho:Lu2O3 crystal.
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公开(公告)号：US11462879B2
公开(公告)日：2022-10-04
申请号：US16628464
申请日：2017-07-05
Inventor： Robert H. Murphy , Michael D. Joswick , Susan Palmateer
Abstract: A system and method for enhancing laser contrast on a remote target utilizing an image processor and a laser power controller is provided. An image processor in an imaging device manipulates a laser power controller in a laser system so that a laser beam emitted from a laser system is ultimately synchronized with the imaging device. Firstly, the original laser signal is shifted one time frame relative to the plurality of time frames to create a shifted laser signal. Secondly, the shifted laser signal is subtracted from the original laser signal. Thirdly, the subtracted laser signal is magnified by a frequency band pass filter. The filtered laser signal is added to the original signal to become the finalized laser signal which has better contrast than the original signal.
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Patent Agency Ranking
公开(公告)号：US11461372B1
公开(公告)日：2022-10-04
申请号：US17205161
申请日：2021-03-18
Inventor： Sandeep Mishra , James C. Bode , Michael C. Caron , Thomas A. Folsom , Michael A. Zalucki
IPC: G06F16/28
Abstract: A data clustering device includes an input configured to receive a plurality of data points encoded in at least one signal and a hardware logic circuit configured to extract one or more features of the one or more data points from the at least one signal, create or update, based on the one or more features, one or more data clusters representing one or more of the data points, and encode at least one of the one or more data clusters in at least one output signal. The device further includes an output configured to provide the at least one output signal, for instance, to a processor, such as a processor for controlling a controlled system. The device can be further configured to split or merge the data cluster(s) based on a statistical distribution of the one or more data points in the respective data cluster.
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公开(公告)号：US11435430B2
公开(公告)日：2022-09-06
申请号：US17112118
申请日：2020-12-04
Inventor： Peter Dusaitis , Matthew F. Chrobak , Brian J. Smith , Paul D. Zemany
Abstract: A method for launching a round from an airborne platform, receiving a plurality of RF signals at the round, determining an amount of time between a first and second received RF signal, where the second signal is a multi-path signal and the first signal is a direct path signal. An altitude of the round is determined based on the delay between the first and second received signal and aligning the round's flight path with an initial velocity vector of the aircraft platform to reduce dispersion. The round can include a plurality of sensors for detecting the RF signals. The second received RF signal may be a multi-path signal having been reflected off of the earth's surface or another object on the earth's surface. The altitude of the round can be determined using the known altitude of the airborne platform, the delay of time between the first and second received signals, and the speed of light.
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公开(公告)号：US20220268302A1
公开(公告)日：2022-08-25
申请号：US17184834
申请日：2021-02-25
Inventor： John C. Cobb , Gary M. Shapiro
Abstract: A V-band clamp includes first and second clamp sections each having an arcuate shape with a first end, a second end, and inside surface defining a recessed channel. A hinge pivotably connects the second end of the first clamp section to the first end of the second clamp section. At least one fastener is configured to releasably connect the first end of the first clamp section to the second end of the second clamp section in a closed position. When the V-band clamp is in the closed position, each fastener extends through an opening in an end face on the first end of the first clamp section and into a bore in an end face on the second end of the second clamp section.
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公开(公告)号：US11379306B1
公开(公告)日：2022-07-05
申请号：US17388690
申请日：2021-07-29
Inventor： Jason F. Ross , John Foster , David M. Hutcheson
IPC: G06F11/00 , G06F11/10 , H03M13/29 , G11C11/4096 , G11C11/419 , G11C11/418 , G01R31/3177
Abstract: A method for radiation hardening synchronous Dynamic Random Access Memory (DRAM), where Error Detection And Correction (EDAC) is implemented on-chip. Each bank includes a plurality of interleaved single chip Static Random Access Memory (SRAM) cells with bit registers configured to interface with the interleaved SRAM cells. A first column multiplexer (MUX) configured to select which bit register is accessed. A second column multiplexer is configured to select an accessed byte with the WRITE burst or a READ burst from the selected bit registers of the first column multiplexer. EDAC logic is configured to check Error Correction Code (ECC) during a READ burst and generate ECC during an WRITE burst for SRAM writeback during a PRECHARGE command.
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公开(公告)号：US11371806B2
公开(公告)日：2022-06-28
申请号：US16531224
申请日：2019-08-05
Inventor： Michael J. Choiniere
IPC: F41G7/22
Abstract: A guidance assembly and method for guiding an ordnance to a target. The assembly can operated in navigation and targeting modes and has an imager/seeker including an objective lens assembly and an imaging sensor array which provide image data for mapping and terminal seeker performance. The imager/seeker is pivotally mounted on the ordnance. An actuator is coupled to the imager/seeker and can be actuated to pivot the imager/seeker relative to a longitudinal axis of the ordnance from a navigation position to a targeting position. A flight control unit communicates with the imager/seeker and the actuator, and has a processor which analyses the image data to provide navigation flight control signals for guiding the ordnance in the navigation mode of operation and determining a target direction via automatic target recognition or aimpoint algorithms for directing the ordnance to the target in the targeting mode of operation.
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