Unmanned aerial vehicle
    3.
    外观设计

    公开(公告)号:USD988926S1

    公开(公告)日:2023-06-13

    申请号:US29766325

    申请日:2021-01-14

    Abstract: FIG. 1 is a top view of an unmanned aerial vehicle;
    FIG. 2 is a bottom view thereof;
    FIG. 3 is a left side view thereof;
    FIG. 4 is a right side view thereof;
    FIG. 5 is a front view thereof;
    FIG. 6 is a back view thereof;
    FIG. 7 is a front perspective view thereof; and,
    FIG. 8 is a back perspective view thereof.
    The broken lines are included for the purpose of illustrating portions of the unmanned aerial vehicle that form no part of the claimed design.

    Rotor Units Having Asymmetric Rotor Blades

    公开(公告)号:US20210309350A1

    公开(公告)日:2021-10-07

    申请号:US17347549

    申请日:2021-06-14

    Abstract: An aerial vehicle is provided including rotor units connected to the aerial vehicle, and a control system configured to operate at least one of the rotor units. The rotor unit includes rotor blades, wherein each rotor blade includes a surface area, and wherein an asymmetric parameter is defined, at least in part, by the relationship between the surface areas of the rotor blades. The value of the asymmetric parameter is selected such that the operation of the rotor unit: (i) moves the rotor blades such that each rotor blade produces a respective vortex and (ii) the respective vortices cause the rotor unit to produce a sound output having an energy distribution defined, at least in part, by a set of frequencies, wherein the set of frequencies includes a fundamental frequency, one or more harmonic frequencies, and one or more non-harmonic frequencies having a respective strength greater than a threshold strength.

    Rotor Units Having Asymmetric Rotor Blades
    7.
    发明申请

    公开(公告)号:US20200216172A1

    公开(公告)日:2020-07-09

    申请号:US16813677

    申请日:2020-03-09

    Abstract: An aerial vehicle is provided including rotor units connected to the aerial vehicle, and a control system configured to operate at least one of the rotor units. The rotor unit includes rotor blades, wherein each rotor blade includes a surface area, and wherein an asymmetric parameter is defined, at least in part, by the relationship between the surface areas of the rotor blades. The value of the asymmetric parameter is selected such that the operation of the rotor unit: (i) moves the rotor blades such that each rotor blade produces a respective vortex and (ii) the respective vortices cause the rotor unit to produce a sound output having an energy distribution defined, at least in part, by a set of frequencies, wherein the set of frequencies includes a fundamental frequency, one or more harmonic frequencies, and one or more non-harmonic frequencies having a respective strength greater than a threshold strength.

    Rotor units having asymmetric rotor blades

    公开(公告)号:US11059576B2

    公开(公告)日:2021-07-13

    申请号:US16813677

    申请日:2020-03-09

    Abstract: An aerial vehicle is provided including rotor units connected to the aerial vehicle, and a control system configured to operate at least one of the rotor units. The rotor unit includes rotor blades, wherein each rotor blade includes a surface area, and wherein an asymmetric parameter is defined, at least in part, by the relationship between the surface areas of the rotor blades. The value of the asymmetric parameter is selected such that the operation of the rotor unit: (i) moves the rotor blades such that each rotor blade produces a respective vortex and (ii) the respective vortices cause the rotor unit to produce a sound output having an energy distribution defined, at least in part, by a set of frequencies, wherein the set of frequencies includes a fundamental frequency, one or more harmonic frequencies, and one or more non-harmonic frequencies having a respective strength greater than a threshold strength.

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