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公开(公告)号：US20240345202A1
公开(公告)日：2024-10-17
申请号：US18299931
申请日：2023-04-13
Inventor： Thomas R. Vaccaro
IPC: G01S5/02
CPC classification number: G01S5/0278 , G01S5/0289 , G01S5/0294
Abstract: Techniques for jointly estimating geolocations of a plurality of emitting targets. An example method includes acquiring a plurality of bearing measurements, establishing a search grid based on the bearing measurements, performing a joint maximum likelihood optimization procedure on the bearing measurements over the search grid to produce an estimated geolocation solution by solving a nonlinear multi-target geolocation description function for all targets associated with a current rank, repeating the joint maximum likelihood optimization procedure set successive ranks until a maximum rank is reached, evaluating the estimated geolocation solution sets for each rank to determine a number of targets, based on the number of targets, selecting the corresponding geolocation solution set for the rank corresponding to the number of targets, and processing the selected corresponding geolocation solution set to produce a geolocation result that includes an estimated location of each target.
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公开(公告)号：US20240319361A1
公开(公告)日：2024-09-26
申请号：US18189571
申请日：2023-03-24
Inventor： Robert F. Saracino , John M. Cosenza , Richard J. Lavery
CPC classification number: G01S13/78 , G01S13/762 , G01S13/767
Abstract: Techniques are provided for an Identification Friend or Foe (IFF) transponder. A system implementing the techniques according to an embodiment includes an antenna array configured to operate in an omnidirectional mode and a steered directional mode. The system also includes a receiver configured to receive signals provided through the antenna array while operating in the omnidirectional mode and a detector configured to detect an IFF interrogation message in the received signals. The system further includes an angle of arrival (AOA) estimator configured to operate the antenna array in the steered directional mode to estimate an AOA of the IFF interrogation message. The system further includes a transmitter configured to operate the antenna array in the steered directional mode to transmit an IFF response message in the estimated AOA direction. The transmit power of the IFF response message may be based on, for example, the steering gain of the antenna array.
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公开(公告)号：US20240257306A1
公开(公告)日：2024-08-01
申请号：US18102865
申请日：2023-01-30
Inventor： Robin L Brown , Jaime A Caicedo Baquerizo , Gregory W Sletterink
CPC classification number: G06T5/40 , G06T5/90 , G06T2207/20024
Abstract: A method of image enhancement, the method comprising: obtaining image data representing an image comprising a plurality of pixels, each having a pixel intensity value, the image further comprising a region of interest; analyzing image data associated with the region of interest and gathering relevant statistics thereon; analyzing image data associated with the image as a whole and gathering relevant statistics thereon; accumulating a histogram based on the intensity value of pixels in the image as a whole; defining histogram bins of interest that correspond to a range of pixel intensity values from within the region of interest; attenuating histogram bins outside of the bins of interest OR multiplying bins of interest by a scaling factor; using the attenuated or scaled histogram to create a cumulative distribution function; and using the cumulative distribution function to produce a contrast enhanced image.
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公开(公告)号：US20240248214A1
公开(公告)日：2024-07-25
申请号：US18158847
申请日：2023-01-24
Inventor： Michael G. Farley , Barry S. Lovseth , Benjamin M. Graubard , James K. Weighton , Sean L. Heitz , Paul E. Jackson
IPC: G01S19/25 , H04W12/037
CPC classification number: G01S19/258 , G01S19/256 , H04W12/037
Abstract: Techniques for wireless initialization of GNSS receivers. An example system includes a source node and at least one GNSS receiver configured to track GNSS satellites and to provide navigation outputs, the GNSS receiver including a first wireless interface configured to implement a secure wireless communications protocol. The source node may include a second wireless interface configured for communications according to the secure wireless communications protocol, a data storage device storing GNSS configuration data that includes information for initializing the GNSS receiver, and at least one processor coupled to the first wireless interface and to the data storage device, and configured to execute instructions that control the source node to establish, via the second wireless interface, a secure wireless link with the at least one GNSS receiver using the secure wireless communications protocol, and transfer the GNSS configuration data to the GNSS receiver over the secure wireless link.
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公开(公告)号：US12046032B2
公开(公告)日：2024-07-23
申请号：US17178165
申请日：2021-02-17
Inventor： Michael J. Choiniere , Jay W. Coffey , Jason R. Lane , Davis A Lange , Paul D. Zemany
IPC: G06V20/17 , F41G7/22 , G01J3/28 , G06F18/2113 , G06V10/75
CPC classification number: G06V20/17 , F41G7/2253 , F41G7/2293 , G01J3/2823 , G06F18/2113 , G06V10/751
Abstract: A ground imaging system for use on a guided aerobody includes one or more lenses designed to receive EM radiation from a ground level, a filter substrate having a plurality of filters, a sensor array designed to receive the EM radiation from the filter substrate, and a processing device coupled to the sensor array. The filter substrate is located at a focal plane of the one or more lenses such that the filter substrate receives the EM radiation from the one or more lenses. The plurality of filters includes at least polarization filters and multispectral filters. The processing device is designed to analyze multispectral and polarization signatures of the electromagnetic radiation from identified objects at the ground level and determine that one or more of the objects is not a desired target based at least on the hyperspectral and polarization signatures of the one or more objects.
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Patent Agency Ranking
公开(公告)号：US20240242999A1
公开(公告)日：2024-07-18
申请号：US18153433
申请日：2023-01-12
Inventor： Jeffrey Fitzgerald
IPC: H01L21/683 , H01L23/00 , H01L23/31
CPC classification number: H01L21/6835 , H01L23/315 , H01L24/16 , H01L2221/68359 , H01L2224/16245 , H01L2924/01007 , H01L2924/01014 , H01L2924/01031 , H01L2924/01032 , H01L2924/01033
Abstract: A semiconductor package that may include least one section having at least one die and at least one electrical structure operably engaged directly with the at least one die. Semiconductor package may also include at least another section having at least another die and at least another electrical structure operably engaged directly with the at least another die. The at least one section and the at least another section may be directly engaged with one another via wafer bonding of the at least one electrical structure and the at least another electrical structure. The at least one section and the at least another section may also be formed entirely of metal materials.
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公开(公告)号：US12038530B2
公开(公告)日：2024-07-16
申请号：US16953579
申请日：2020-11-20
Inventor： Scott A Kuzdeba , Brandon P. Hombs , Daniel Massar
Abstract: A method of assessing the effectiveness of an electronic countermeasure (ECM) applied against an unknown, ambiguous, or unresponsive radar threat includes monitoring changes in a radar-associated factor while applying the ECM and determining if the ECM is disrupting the hostile radar. The radar-associated factor can be a weapon that is controlled by the radar threat, and assessing the ECM can include determining whether the weapon is misdirected due to applying the ECM. Or the radar-associated factor can be a feature of an RF waveform emitted by the radar threat, and assessing the ECM can include determining if the feature is changed due to applying the ECM. Continuous changes in the feature can indicate unsuccessful attempts to mitigate the ECM. Return of the feature to a pre-threat state can indicate disruption of the radar. The ECM can be selected from a library of countermeasures pre-verified as effective against known threats.
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公开(公告)号：US20240217638A1
公开(公告)日：2024-07-04
申请号：US18149828
申请日：2023-01-04
Inventor： Matthew D. Thoren , John C. Cobb
IPC: B63G8/18
CPC classification number: B63G8/18
Abstract: A replacement fin for an underwater vehicle includes a fin defining a socket that includes a bore of a first diameter and an internal spring recess of a larger diameter. A coil spring is retained in the spring recess and has coils of an elongated coil shape. The coil spring can occupy a first canted position in which the coils are canted in a direction generally into the bore and the coils can occupy a second canted position in which the coils are canted in a direction generally out of the bore. The UUV has a post that can include at least one circumferential recess configured to engage the coil spring, and which can function as a lock in some canted orientations of the spring. Alternately, the socket is defined in the UUV and the fin includes a post sized to be received in the socket.
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公开(公告)号：US12019230B2
公开(公告)日：2024-06-25
申请号：US16915386
申请日：2020-06-29
Inventor： Nathan E. Rines , Heather L. Keegan , Kevin A. LaRochelle , Paul F. Messier , Stephen J. Pond , Michael J. Powers , Glen A. Rines , Donald K. Smith
Abstract: A system and method are disclosed for a precision variable-focus telescope that includes a telescope housing containing an optical system; a gap pad including a first side and a second side, wherein the first side of the gap pad is attached to the telescope housing; a heat spreader including a first side and a second side, wherein the heat spreader is contiguous with the telescope housing and wherein the second side of the heat spreader is attached to the second side of the gap pad; a temperature-sensing device connected to the first side of the heat spreader; and an electric-film heater including a first side and a second side, wherein the second side of the electric-film heater is attached to the first side of the heat spreader.
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公开(公告)号：US20240200755A1
公开(公告)日：2024-06-20
申请号：US18065976
申请日：2022-12-14
Inventor： Matthew F. Kepler , Chris B. O'Brien
CPC classification number: F21V14/006 , F21V9/40 , F21V14/08 , G02B5/20
Abstract: A filter assembly of an optical system. The filter assembly may include a first spool, a second spool, and a film filter that operably engages with the first spool and the second spool and the film filter having at least two filters that are different from one another. The filter assembly may also include a drive assembly that operably engages with one of the first spool, the second spool, and the film filter for moving at least one filter of the at least two filters into optical alignment with a focal plane sensor of the optical system. The film filter of the filter assembly may also be made from a flexible material that bends when wound about the first spool and the second spool.
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