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    Automated probabilistic axiom generation and incremental updates
    23.
    发明授权
    Automated probabilistic axiom generation and incremental updates 有权

    公开(公告)号：US11854252B1

    公开(公告)日：2023-12-26

    申请号：US17700802

    申请日：2022-03-22

    Applicant: HRL Laboratories, LLC

    Inventor： Hyukseong Kwon ,  Amit Agarwal ,  Amir M. Rahimi ,  Kevin Lee ,  Alexie Pogue ,  Rajan Bhattacharyya

    IPC: G06K9/62 ,  G06V10/98 ,  G06V20/56 ,  G06V10/762 ,  G06V10/764 ,  G06V10/10

    CPC classification number: G06V10/993 ,  G06V10/10 ,  G06V10/763 ,  G06V10/764 ,  G06V20/56

    Abstract: Described is a system for evaluating and correcting perception errors in object detection and recognition. The system receives perception data from an environment proximate a mobile platform. Perception probes are generated from the perception data which describe perception characteristics of object detections in the perception data. For each perception probe, probabilistic distributions for true positive and false positive values are determined, resulting in true positive and false negative perception probes. Statistical characteristics of true positive perception probes and false positive perception probes are then determined. Based on the statistical characteristics, true positive perception probes are clustered. An axiom is generated to determine statistical constraints for perception validity for each perception probe cluster. The axiom is evaluated to classify the perception probes as valid or erroneous. Optimal perception parameters are generated by solving an optimization problem based on the axiom. The perception module is adjusted based on the optimal perception parameters.

    System for generating topic-based sentiment time series from social media data
    25.
    发明授权
    System for generating topic-based sentiment time series from social media data 有权

    公开(公告)号：US11809474B1

    公开(公告)日：2023-11-07

    申请号：US18049599

    申请日：2022-10-25

    Applicant: HRL Laboratories, LLC

    Inventor： Dana M. Warmsley ,  Philip Pope

    IPC: G06F16/33 ,  G06Q50/00

    CPC classification number: G06F16/3334 ,  G06F16/3347 ,  G06Q50/01

    Abstract: A method for issuing control signals in response to sentiment. In some embodiments, the method includes: assigning, to each of a plurality of comments, a respective topic vector of length k; determining whether a largest element of the topic vector of a first comment of the plurality of comments exceeds a weight threshold; in response to the determining that the largest element exceeds the weight threshold, classifying the first comment into a first topic, of k topics, the first topic corresponding to the position, in the topic vector, of the largest element of the topic vector; calculating a first sentiment score; calculating an average sentiment score, based in part on the first sentiment score; determining whether the average sentiment score meets a criterion; and in response to the determining that the criterion is met, generating a control signal, the control signal including a message related to the first topic.

    Spatial light modulator using phase-change materials with improved fill factor
    26.
    发明授权
    Spatial light modulator using phase-change materials with improved fill factor 有权

    公开(公告)号：US11808937B1

    公开(公告)日：2023-11-07

    申请号：US17512562

    申请日：2021-10-27

    Applicant: HRL Laboratories, LLC

    Inventor： Jeong-Sun Moon ,  Hwa Chang Seo ,  Kyung-Ah Son ,  Kangmu Lee

    IPC: G02B26/08 ,  G02B27/09 ,  G02F1/1335

    CPC classification number: G02B26/0833 ,  G02B27/0977 ,  G02F1/133553

    Abstract: A method of providing a spatial light modulator comprising: providing a substrate; providing a first phase change material cell on the substrate, the first phase change material cell comprising: a first electrical heater on the substrate; a first optical reflector layer on the electrical heater; and a first phase change material layer on the optical reflector layer; and providing at least a second phase change material cell on the substrate, the second phase change material cell comprising: a second electrical heater on the substrate; a second optical reflector layer on the second electrical heater; a second phase change material layer on the second optical reflector layer; and providing a light absorber layer between the first phase change material cell and the second phase change material cell.

    THERMALLY STABLE, CLADDED PERMANENT MAGNETS, AND COMPOSITIONS AND METHODS FOR MAKING THE SAME
    28.
    发明公开
    THERMALLY STABLE, CLADDED PERMANENT MAGNETS, AND COMPOSITIONS AND METHODS FOR MAKING THE SAME 审中-公开

    公开(公告)号：US20230282398A1

    公开(公告)日：2023-09-07

    申请号：US18114199

    申请日：2023-02-24

    Applicant: HRL Laboratories, LLC

    Inventor： Brennan YAHATA ,  Adam GROSS ,  Christopher HENRY ,  Darby LAPLANT ,  Amber SUCICH ,  Raymond NGUYEN ,  Christine KIM

    IPC: H01F1/055

    CPC classification number: H01F1/0551 ,  B82Y25/00

    Abstract: The disclosed technology provides a nanofunctionalized magnetic material feedstock comprising: from 50 wt % to 99.5 wt % of magnetic microparticles having an average microparticle effective diameter from 1 micron to 500 microns; from 0.4 wt % to 40 wt % of one or more rare earth elements; and from 0.1 wt % to 10 wt % of metal-containing inoculant nanoparticles, wherein at least 1 wt % of the inoculant nanoparticles are chemically and/or physically disposed on surfaces of the magnetic microparticles. The nanofunctionalized magnetic material feedstock is processed using high-throughput laser-based additive manufacturing to optimize the architecture of NdFeB or other magnets, generating site-specific, demagnetization-resistant microstructures. This disclosure teaches a rapid, single-step laser-based process to tailor the easy axis alignment, grain size, and microstructure of a permanent magnet at corners and edges to resist demagnetization.

    Simultaneous dual-band image sensors
    29.
    发明授权
    Simultaneous dual-band image sensors 有权

    公开(公告)号：US11749705B2

    公开(公告)日：2023-09-05

    申请号：US17583098

    申请日：2022-01-24

    Applicant: HRL Laboratories, LLC

    Inventor： Minh B. Nguyen ,  Brett Z. Nosho

    IPC: H01L27/146 ,  H01L27/02

    CPC classification number: H01L27/14667 ,  H01L27/0285 ,  H01L27/14609

    Abstract: A simultaneous dual-band image sensor having a plurality of pixels includes a substrate, a common ground on the substrate, wherein each pixel includes a Band 1 absorber layer on the common ground layer, a barrier layer on the Band 1 absorber layer, a Band 2 absorber layer on the barrier layer, a ring opening in the pixel formed by a removed portion of the Band 2 absorber layer, a removed portion of the barrier layer and a removed portion of the Band 1 absorber layer, wherein the ring opening does not extend through the Band 1 absorber layer, a first contact on a portion of the Band 2 absorber layer inside the ring, and a second contact on a portion of the Band 2 absorber layer outside the ring. The Band 1 absorber layer and the Band 2 absorber layer are n-type, or the Band 1 absorber layer and the Band 2 absorber layer are p-type.

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