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    ADAPTABLE AND HIERARCHICAL POINT CLOUD COMPRESSION
    92.
    发明公开
    ADAPTABLE AND HIERARCHICAL POINT CLOUD COMPRESSION 审中-公开

    公开(公告)号：US20240005559A1

    公开(公告)日：2024-01-04

    申请号：US17854842

    申请日：2022-06-30

    Applicant: Raytheon Company

    Inventor： Allen R. Hainline

    IPC: G06T9/00 ,  G06T5/00 ,  G06T3/40

    CPC classification number: G06T9/00 ,  G06T5/002 ,  G06T2207/20021 ,  G06T2207/10028 ,  G06T3/40

    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.

    VIBRATION ISOLATOR WITH HARD FRICTION BUSHING
    93.
    发明公开
    VIBRATION ISOLATOR WITH HARD FRICTION BUSHING 审中-公开

    公开(公告)号：US20230417302A1

    公开(公告)日：2023-12-28

    申请号：US17808640

    申请日：2022-06-24

    Applicant: Raytheon Company

    Inventor： Jeremy Dyess

    IPC: F16F13/00 ,  F16F15/02

    CPC classification number: F16F13/005 ,  F16F13/00 ,  F16F15/022 ,  F16M13/02

    Abstract: A vibration isolator includes a series of hard bushings that press against each other and slide, under the constraint of friction from the engagement of the bushings. A fastener, such as a bolt, passes through the engaged bushings, and one or more springs provide a spring force that maintains the engagement of the bushings. The bushings may include top and bottom bushings having chamfered surfaces, which engage corresponding upper and lower sloped surface on a middle friction bushing which can slide relative to the top and bottom bushings. The isolator may be part of a vibration isolation system that includes multiple isolators to provide isolation for an isolated object. The bushings may be made of metal or another suitable hard material. The isolator may be suitable in particular for vibration isolation in situations where vibrations are of severe, but short duration.

    Arbor press with limiter controlling ram load and travel
    96.
    发明授权
    Arbor press with limiter controlling ram load and travel 有权

    公开(公告)号：US11850816B2

    公开(公告)日：2023-12-26

    申请号：US17464818

    申请日：2021-09-02

    Applicant: Raytheon Company

    Inventor： Mitchell Bro ,  John Tristan Elmer ,  Jarrod Salmon ,  William Straus

    IPC: B30B1/04 ,  B30B15/06

    CPC classification number: B30B1/04 ,  B30B15/065

    Abstract: An arbor press includes a limiter for limiting load and/or travel of a ram used to press on an object. The ram includes a pair of pieces, a shaft and a sleeve, which are capable of relative translation, modulated by the spring. The spring may be preloaded, and configured to prevent overloading of the object, by limiting the transmission of force through the ram. The ram may also be configured to limit travel of the ram. The arbor press may include gearing to translate rotational movement of a handle to translational movement of the ram. The gearing may include a rack that is part of or is coupled to the shaft, and a pinion that is connected to the handle. Parts of the arbor press may be enclosed in a housing, to contain debris from metal-to-metal sliding in the arbor press, facilitating use in clean rooms.

    DECENTRALIZED GRAPH CLUSTERING USING THE SCHRODINGER EQUATION
    97.
    发明公开
    DECENTRALIZED GRAPH CLUSTERING USING THE SCHRODINGER EQUATION 审中-公开

    公开(公告)号：US20230409643A1

    公开(公告)日：2023-12-21

    申请号：US17843863

    申请日：2022-06-17

    Applicant: RAYTHEON COMPANY ,  RAYTHEON BBN TECHNOLOGIES CORP.

    Inventor： Tuhin Sahai ,  Hari Kiran Krovi

    IPC: G06F16/906 ,  G06F16/901

    CPC classification number: G06F16/906 ,  G06F16/9024

    Abstract: A method for node cluster assignment in a graph includes identifying neighboring nodes of a first node in the graph, calculating one or more elements of a graph Laplacian of the graph, the one or more elements of the graph Laplacian corresponding to the first node and the neighboring nodes, initializing a first wavefunction associated with the first node with an initial value, evolving the first wavefunction associated with the first node over time based on the initial value, the one or more elements of the graph Laplacian, and previous states of wavefunctions of the neighboring nodes to generate a time-evolved wavefunction vector, and identifying a cluster assignment of the first node based on the time-evolved wavefunction vector.

    Propulsion system with initiators for selective activation of multiple rocket motors
    98.
    发明授权
    Propulsion system with initiators for selective activation of multiple rocket motors 有权

    公开(公告)号：US11846252B2

    公开(公告)日：2023-12-19

    申请号：US17466113

    申请日：2021-09-03

    Applicant: Raytheon Company

    Inventor： Edward Little, III ,  Bryce Chanes ,  Jacob Pinello-Benavides ,  John Meschberger

    IPC: F02K9/30 ,  F02K9/94 ,  F02K9/76 ,  F02K9/26

    CPC classification number: F02K9/30 ,  F02K9/26 ,  F02K9/763 ,  F02K9/94

    Abstract: A power generation system includes a manifold having multiple plenums, capable of receiving multiple solid rocket motors. Initiators are coupled to the manifold, and are operatively coupled to respective of the plenums, to selectively fire different groups of the rocket motors coupled to respective of the plenums. The rocket motors act in parallel, to provide thrust in a single direction. The initiators may activate ignition charges that are in the plenums. The plenums may be annular plenums, which may be located in an annular manifold. The plenums may be lined with an insulator material. A cover may be used to cover the plenums, and also to receive the rocket motors. The rocket motors may be solid-fuel rocket motors, with propellant grains and nozzles. The individual rocket motors may have separate ignition booster charges coupled to the plenum, which are ignited by the ignition charge.

    PHOTONIC INTEGRATED CIRCUIT MULTI-WAVELENGTH PHASE MODULATOR NETWORKS
    99.
    发明公开
    PHOTONIC INTEGRATED CIRCUIT MULTI-WAVELENGTH PHASE MODULATOR NETWORKS 审中-公开

    公开(公告)号：US20230400628A1

    公开(公告)日：2023-12-14

    申请号：US17806873

    申请日：2022-06-14

    Applicant: Raytheon Company

    Inventor： Stephen P. Palese

    IPC: G02B6/12

    CPC classification number: G02B6/12004 ,  G02B6/12014 ,  G02B2006/12035

    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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