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公开(公告)号：US12217463B2
公开(公告)日：2025-02-04
申请号：US17854842
申请日：2022-06-30
Applicant: Raytheon Company
Inventor： Allen R. Hainline
Abstract: Systems and methods are provided for point cloud compression. An exemplary method includes: receiving point cloud data; quantizing the point cloud data to remove noise to produce quantized point cloud data; generating, using the quantized point cloud data, a plurality of multi-level tiles; performing reordering within the multi-level tiles to optimize a compression rate producing a plurality of reordered multi-level tiles; bit packing the reordered multi-level tiles minimizing bits required to store per tile header data producing a bit packed multi-level tile data; and performing additional compression on the bit-packed multi-level tile data using a first compression algorithm.
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公开(公告)号：US20250030423A1
公开(公告)日：2025-01-23
申请号：US18354034
申请日：2023-07-18
Applicant: Raytheon Company
Inventor： Micky R. Harris , Magathi J. Willis
IPC: H03K19/0185
Abstract: An apparatus includes an output circuit configured to level-shift an incoming signal and generate an output signal having a voltage range different than a voltage range of the incoming signal. The output circuit includes an output driver configured to receive the incoming signal and generate the output signal at a specified voltage level. The output circuit also includes a switched source follower coupled to the output driver. The switched source follower is configured to receive the incoming signal and set the specified voltage level. The switched source follower may include first and second transistors, and the output driver may include a third transistor. The first and third transistors may be configured to be driven by the incoming signal. The second transistor may be configured to be driven by a gate voltage, and the specified voltage level for the output driver may be based on the gate voltage.
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公开(公告)号：US20250027837A1
公开(公告)日：2025-01-23
申请号：US18354992
申请日：2023-07-19
Applicant: Raytheon Company
Inventor： Peter H. Vo , Michael Klensin , Roger C. Esplin , Steven Alejandro Elmer , James Paul Henderson
Abstract: A test assembly and method for performing a shock test of an article includes a pneumatic gun assembly, a Hopkinson bar assembly, a magnetic catch, and a support assembly. The support assembly suspends the article in alignment with the magnetic catch. The magnetic catch retains the article against the Hopkinson bar assembly. The pneumatic gun assembly includes a striker for propagating a shock through the Hopkinson bar assembly into the article.
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公开(公告)号：US12206369B2
公开(公告)日：2025-01-21
申请号：US18165713
申请日：2023-02-07
Applicant: Raytheon Company
Inventor： Bryan W. Kean
Abstract: An apparatus includes a photodetector configured to generate an electrical current based on received illumination. The apparatus also includes a capacitor transimpedance amplifier (CTIA) unit cell configured to generate an integration voltage based on the electrical current. The CTIA unit cell includes (i) an amplifier configured to receive the electrical current and a first reference voltage, (ii) a feedback capacitor coupled in parallel across the amplifier, and (iii) a reset switch coupled in parallel across the feedback capacitor. The apparatus further includes a comparator configured to compare an input voltage of the amplifier and a second reference voltage, where generation of the integration voltage is modifiable based on the comparison.
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公开(公告)号：US12200910B2
公开(公告)日：2025-01-14
申请号：US17576437
申请日：2022-01-14
Applicant: Raytheon Company
Inventor： Andrew J. Pitts
Abstract: A heat spreading element is provided. The heat spreading element includes compressible pyrolytic graphite sheets and rigid pyrolytic graphite sheets interleaved with the compressible pyrolytic graphite sheets.
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Patent Agency Ranking
公开(公告)号：US12189221B2
公开(公告)日：2025-01-07
申请号：US18211004
申请日：2023-06-16
Applicant: RAYTHEON COMPANY
Inventor： Gary M. Graceffo , Andrew Kowalevicz , Benjamin P. Dolgin
IPC: G02F1/03
Abstract: Aspects and examples are directed to programmable optical finite impulse response filters and optical infinite impulse response filters, which may be implemented as photonic integrated circuits.
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公开(公告)号：US12189180B2
公开(公告)日：2025-01-07
申请号：US17806873
申请日：2022-06-14
Applicant: Raytheon Company
Inventor： Stephen P. Palese
Abstract: An apparatus includes a photonic integrated circuit having an optical phased array, where the optical phased array includes multiple unit cells. Each unit cell includes at least one antenna element configured to transmit or receive multiple optical signals having spectrally-distinct wavelengths or wavelength ranges. Each unit cell also includes at least one signal pathway configured to transport the optical signals to or from the at least one antenna element. Each unit cell further includes a phase modulator configured to modify phases of the optical signals being transported through the at least one signal pathway. Each unit cell is configured to provide correlated phase shifts to the optical signals having the spectrally-distinct wavelengths or wavelength ranges.
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公开(公告)号：US20250005887A1
公开(公告)日：2025-01-02
申请号：US17845431
申请日：2022-06-21
Applicant: Raytheon Company
Inventor： Grant Boroughs
Abstract: Systems and methods are provided for producing a mask for cloud detection. An exemplary method includes: receiving a multi-band image; collecting a first set of band images and a second set of band images separated by a time lag; forming a first pseudo-pan image and a second pseudo-pan image from the first set of band images and the second set of band images; computing a pixel value difference between each of the corresponding pixels in the first pseudo-pan image and the second pseudo-pan image; extracting from the corresponding pixels a set of candidate cloud pixels; determine whether the candidate cloud pixels have sufficient pixels to define a cloud; in response to determining the candidate cloud pixels have sufficient pixels, performing a morphological clean-up of the candidate cloud pixels to produce a cleaned image of the cloud; and producing, using the cleaned image of the cloud, a cloud mask.
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公开(公告)号：US12181229B2
公开(公告)日：2024-12-31
申请号：US16279153
申请日：2019-02-19
Applicant: Raytheon Company
Inventor： Lowell A. Bellis , Robert C. Hon
Abstract: An apparatus includes a glass body having a first face and a second face on opposing ends and defining a longitudinal axis between the opposing ends. The glass body includes multiple planar exterior surfaces, each extending continuously from the first face to the second face. The glass body also includes an interior surface surrounding an aperture, the aperture extending longitudinally from the first face to the second face. The glass body further includes a plurality of holes surrounding the aperture, where the holes are disposed within the glass body and extend longitudinally from the first face to the second face. The holes are configured to receive and direct a gas through the holes to exchange heat between the gas and the glass body.
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公开(公告)号：US12173740B2
公开(公告)日：2024-12-24
申请号：US16930233
申请日：2020-07-15
Applicant: Raytheon Company
Inventor： Robert D. Travis , Justin Powell
Abstract: A frangible detent pin comprising a base a pin head and an elastic member. The base is configured to be secured within a bore. The pin head and the base are interconnected through a frangible connection. The elastic member is configured to bias the pin head away from the base. The frangible detent pin has a rigid stage in which the pin head is rigidly positioned relative to the base and a spring-loaded stage in which the pin head is moveable relative to the base under a compression load between pin head and the base. The frangible detent pin is configured to transition from the rigid stage to the spring-loaded stage in response to the compression load exceeding a predetermined threshold sufficient to cause the frangible connection to fail.
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