CHARACTERISING WAVE PROPERTIES BASED ON MEASUREMENT DATA USING A MACHINE-LEARNING MODEL

    公开(公告)号:US20230078797A1

    公开(公告)日:2023-03-16

    申请号:US17869050

    申请日:2022-07-20

    Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for estimating wave properties of a body of water. A computer-implemented system obtains measurement data for a duration of time from an inertial measurement unit (IMU) onboard an underwater device, generates model input data based on at least the measurement data obtained at the plurality of time points, and processes the model input data to generate model output data indicating one or more wave properties using a machine-learning model. The system further determines, based on at least the one or more wave properties, whether the device is safe to be deployed.

    MITIGATING PLASMA INSTABILITY
    82.
    发明申请

    公开(公告)号:US20230077705A1

    公开(公告)日:2023-03-16

    申请号:US17992344

    申请日:2022-11-22

    Abstract: A system for reducing plasma instability is disclosed. The system includes: an outer electrode having a first end and a second end spaced from the first end; and an inner electrode disposed inside of a void defined within the outer electrode and arranged coaxial with the outer electrode. The inner electrode includes: a base end defined by the first end of the outer electrode; and an apical end spaced from the base end. The system includes a fiber injector configured to inject a frozen fiber into the void from the apical end of the inner electrode; an electrode power source configured to energize the outer electrode and the inner electrode, and thereby, cause a plasma contained within the outer electrode to flow axially along the frozen fiber; and a frozen fiber power source configured to drive an electrical pulse to the frozen fiber.

    Methods for designing hybrid neural networks having physical and digital components

    公开(公告)号:US11604957B1

    公开(公告)日:2023-03-14

    申请号:US16576946

    申请日:2019-09-20

    Abstract: Systems and methods for designing a hybrid neural network comprising at least one physical neural network component and at least one digital neural network component. A loss function is defined within a design space composed of a plurality of voxels, the design space encompassing one or more physical structures of the at least one physical neural network component and one or more architectural features of the digital neural network. Values are determined for at least one functional parameter for the one or more physical structures, and the at least one architectural parameter for the one or more architectural features, using a domain solver to solve Maxwell's equations so that a loss determined according to the loss function is within a threshold loss. Final structures are defined for the at least one physical neural network component and the digital neural network component based on the values.

    AUTONOMOUS SEAGOING POWER REPLENISHMENT WATERCRAFT

    公开(公告)号:US20230064908A1

    公开(公告)日:2023-03-02

    申请号:US17808838

    申请日:2022-06-24

    Abstract: Methods, systems, and computer-readable media that implement autonomous seagoing power replenishment watercraft. An example system includes a plurality of marine vessels; a plurality of watercraft, each watercraft of the plurality of watercraft including a rechargeable electrical power supply and being configured to operate in: a first mode in which the watercraft awaits an assignment to provide electrical energy to a marine vessel of the plurality of marine vessels; a second mode in which the watercraft performs operations including keeping station with an assigned marine vessel and providing electrical energy to the assigned marine vessel from the power supply; and a third mode in which the watercraft recharges the power supply from a charging station. The system includes a controller configured to perform operations comprising: transmitting, to a first watercraft, an instruction indicating an assignment of the first watercraft to provide electrical energy to a first marine vessel.

    AUTONOMOUS SEAGOING POWER REPLENISHMENT WATERCRAFT

    公开(公告)号:US20230064567A1

    公开(公告)日:2023-03-02

    申请号:US17464075

    申请日:2021-09-01

    Abstract: Methods, systems, and computer-readable media that implement autonomous seagoing power replenishment watercraft. An example system includes a plurality of marine vessels; a plurality of watercraft, each watercraft of the plurality of watercraft including a rechargeable electrical power supply and being configured to operate in: a first mode in which the watercraft awaits an assignment to provide electrical energy to a marine vessel of the plurality of marine vessels; a second mode in which the watercraft performs operations including keeping station with an assigned marine vessel and providing electrical energy to the assigned marine vessel from the power supply; and a third mode in which the watercraft recharges the power supply from a charging station. The system includes a controller configured to perform operations comprising: transmitting, to a first watercraft, an instruction indicating an assignment of the first watercraft to provide electrical energy to a first marine vessel.

    Customer experience
    86.
    发明授权

    公开(公告)号:US11593865B2

    公开(公告)日:2023-02-28

    申请号:US15721069

    申请日:2017-09-29

    Abstract: Techniques for improving a customer experience include presenting a selectable component to a user through a graphical user interface of a computing device that is communicably coupled to a server system through a network, the selectable component particularly associated with the user, the server system associated with a vendor and including a plurality of vendor product descriptions; receiving an activation of the selectable component from the user; based on the activation, identifying a plurality of profile data associated with the user; culling the plurality of vendor product descriptions to generate, based on the plurality of profile data, a subset of vendor product descriptions from the plurality of vendor product descriptions; and presenting the subset of vendor product descriptions to the user through the graphical user interface.

    Shared dense network with robot task-specific heads

    公开(公告)号:US11587302B2

    公开(公告)日:2023-02-21

    申请号:US16717498

    申请日:2019-12-17

    Abstract: A method includes receiving image data representing an environment of a robotic device from a camera on the robotic device. The method further includes applying a trained dense network to the image data to generate a set of feature values, where the trained dense network has been trained to accomplish a first robot vision task. The method additionally includes applying a trained task-specific head to the set of feature values to generate a task-specific output to accomplish a second robot vision task, where the trained task-specific head has been trained to accomplish the second robot vision task based on previously generated feature values from the trained dense network, where the second robot vision task is different from the first robot vision task. The method also includes controlling the robotic device to operate in the environment based on the task-specific output generated to accomplish the second robot vision task.

    Adjustable electrode headset
    88.
    发明授权

    公开(公告)号:US11583231B2

    公开(公告)日:2023-02-21

    申请号:US16293824

    申请日:2019-03-06

    Inventor: Phillip Yee

    Abstract: An electroencephalography (EEG) headset can include an arrangement of straps that provides the ability to adjust the size and shape of the headset once disposed on a user's head. In some implementations, the headset can include a first elastic strap extending from a first side of the headset to a second side of the headset along a topside of the headset. The headset can also include a second strap including at least one inelastic portion and at least one elastic portion, at least one EEG electrode coupled to the second strap, a third elastic strap extending from the first side of the headset to the second side of the headset along an underside of the headset, and a plurality of connectors that couple the elastic first strap, the second strap, or the third elastic strap.

    Electrical power grid modeling
    89.
    发明授权

    公开(公告)号:US11580728B2

    公开(公告)日:2023-02-14

    申请号:US17356897

    申请日:2021-06-24

    Abstract: Methods, systems, and apparatus, including computer programs encoded on a storage device, for electric grid asset detection are enclosed. An electric grid asset detection method includes: obtaining overhead imagery of a geographic region that includes electric grid wires; identifying the electric grid wires within the overhead imagery; and generating a polyline graph of the identified electric grid wires. The method includes replacing curves in polylines within the polyline graph with a series of fixed lines and endpoints; identifying, based on characteristics of the fixed lines and endpoints, a location of a utility pole that supports the electric grid wires; detecting an electric grid asset from street level imagery at the location of the utility pole; and generating a representation of the electric grid asset for use in a model of the electric grid.

    Nuclear radiation detection
    90.
    发明授权

    公开(公告)号:US11579319B2

    公开(公告)日:2023-02-14

    申请号:US17104361

    申请日:2020-11-25

    Abstract: A nuclear radiation detector is disclosed. The detector includes a housing including therein: a scintillator; and a multi-pixel optical sensor positioned, relative to the scintillator, to receive photons emitted by the scintillator in response to interactions with nuclear radiation. The housing isolates the scintillator and the multi-pixel optical sensor from external light. The detector includes one or more processors operably connectable to the multi-pixel optical sensor; and one or more data stores coupled to the processors having instructions stored thereon which cause the processors to perform operations. The operations include: responsive to the multi-pixel optical sensor detecting photons emitted by the scintillator, receiving, from the multi-pixel optical sensor, data signals indicating 1) spatial locations of individual pixels that detected the photons and 2) temporal data indicating when the detections occurred; and generating, from the data signals, a spatially and temporally resolved image of radiation incident on the scintillator.

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