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    Optical circulator for free space optical communication
    321.
    发明授权
    Optical circulator for free space optical communication 有权

    公开(公告)号：US10069562B2

    公开(公告)日：2018-09-04

    申请号：US15290153

    申请日：2016-10-11

    Applicant: X Development LLC

    Inventor： Chiachi Wang

    IPC: H04B10/11 ,  H04B10/2581 ,  H04B10/25 ,  H04J14/02

    Abstract: A free space optical communication system transmits and receives optical signals in a colorless manner using an optical circulator. The system installs the optical circulator with a single mode (SM) fiber at port 1, a double clad (DC) fiber at port 2, and a multimode (MM) fiber at port 3. The system injects a first optical signal into a core of the SM fiber. The system then routes the first optical signal at port 1, using the optical circulator, into a SM core of the DC fiber via Port 2. Further, the system injects a second optical signal into a first cladding of the DC fiber. The system then routes the second optical signal at port 2, using the optical circulator, into the MM fiber via Port 3.

    Payload separation for balloon flight termination
    322.
    发明授权
    Payload separation for balloon flight termination 有权

    公开(公告)号：US10059420B1

    公开(公告)日：2018-08-28

    申请号：US14960739

    申请日：2015-12-07

    Applicant: X Development LLC

    Inventor： Michael Hall-Snyder ,  Kyle Brookes

    IPC: B64B1/62 ,  B64B1/46

    CPC classification number: B64B1/46

    Abstract: Aspects of the disclosure relate to terminating flight of a balloon that may include separating a connection between a balloon envelope and a payload of the balloon. In one example, a payload separation apparatus includes a first shaft configured to attach to the envelope, a second shaft configured to attach to the payload, a pair of arms, and a bracket arranged to secure the pair of arms to the first shaft. In another example, a system includes a flight termination assembly having a cutting edge configured to cut an opening in the envelope and a payload separation apparatus. The apparatus includes a first shaft configured to attach to the envelope, a second shaft configured to attach to the payload, a pair of arms, and a bracket configured to secure the pair of arms to the first shaft. The system also includes a controller configured to activate the cutting edge.

    Methods and systems for using projected patterns to facilitate mapping of an environment
    325.
    发明授权
    Methods and systems for using projected patterns to facilitate mapping of an environment 有权

    公开(公告)号：US10025886B1

    公开(公告)日：2018-07-17

    申请号：US14870626

    申请日：2015-09-30

    Applicant: X Development LLC

    Inventor： Ethan Rublee ,  Hauke Malte Strasdat

    IPC: G06F17/50 ,  G01B11/25

    Abstract: Methods and systems for using projected patterns to facilitate mapping of an environment are provided herein. A computing system may cause fixedly-posed projectors to each provide, onto a respective area of the environment, a predetermined respective distinct pattern. The system may determine respective poses of the projectors, and further determine a map of the environment that identifies, for each distinct pattern, respective locations on one or more surfaces in the environment on which the distinct pattern is detectable. Based on sensor data the system may identify a portion of a particular distinct pattern in the environment. The system may use the map and the respective pose of a particular projector that is providing the particular pattern to make a determination that the portion is located at a new, different location compared to the map. The system may then transmit an output signal indicating the determination.

    Tablet computer-based robotic system
    326.
    发明授权
    Tablet computer-based robotic system 有权

    公开(公告)号：US10017024B2

    公开(公告)日：2018-07-10

    申请号：US15448783

    申请日：2017-03-03

    Applicant: X Development LLC

    Inventor： Christopher Lynn Morey

    IPC: B60R99/00 ,  G05D1/02 ,  B62D55/06 ,  B62D55/07 ,  B60G17/016 ,  B62D55/075

    CPC classification number: B60G17/016 ,  B60R99/00 ,  B62D55/06 ,  B62D55/075 ,  G05D1/0246 ,  G05D2201/0207 ,  G05D2201/0209 ,  Y10S901/01

    Abstract: An example robotic chassis may include a frame including a first side member and a second side member connected by a transverse member near respective first ends of first side member and the second side member. The robotic chassis may also include a rigid case having a mounting point for a tablet computer. The rigid case may be rotatably coupled between the side members near respective second ends of the side members. The robotic chassis may further include a first arm and a second arm having respective distal ends and respective proximal ends. Respective proximal ends of the first arm and the second arm may be rotatably coupled to the frame near opposite respective first ends of the first side member and the second side member. In addition, the robotic chassis may include a plurality of wheels rotatably coupled to the frame.

    Surface markers and methods for use
    327.
    发明授权
    Surface markers and methods for use 有权

    公开(公告)号：US10011016B1

    公开(公告)日：2018-07-03

    申请号：US15151852

    申请日：2016-05-11

    Applicant: X Development LLC

    Inventor： Justine Rembisz ,  Miguel Rivas

    IPC: B25J11/00 ,  G05D1/02

    CPC classification number: B25J11/0085 ,  B25J5/007 ,  B25J13/003 ,  G05D1/0234 ,  G05D2201/0216

    Abstract: An example implementation includes operating a robotic system in an environment. The implementation also includes detecting, using one or more sensors of the robotic system, a surface marker at a first location in the environment. The implementation also includes determining that the detected surface marker indicates the presence of an object having a first surface attribute at the first location, wherein the first surface attribute is one of a plurality of predefined surface attributes. The implementation also includes determining one or more tasks that correspond to the first surface attribute in response to determining that the surface marker indicates the object having the first surface attribute. The implementation also includes causing the robotic system to perform the one or more tasks with respect to the object.

    Cloud-based analysis of robotic system component usage
    328.
    发明授权
    Cloud-based analysis of robotic system component usage 有权

    公开(公告)号：US10011013B2

    公开(公告)日：2018-07-03

    申请号：US14672706

    申请日：2015-03-30

    Applicant: X Development LLC

    Inventor： Jeffrey Thomas Bingham ,  Robert Wilson

    IPC: B25J9/16 ,  G06Q10/00

    CPC classification number: B25J9/1674 ,  G06Q10/20

    Abstract: Example implementations may relate to a cloud service that stores a detection metric corresponding to a maintenance request for a particular component. In particular, the cloud may receive sensor data from various robotic systems each having the particular component. The cloud may then determine, based on the sensor data, performance data for the particular component over time at the various robotic systems. The cloud may also determine various maintenance events for the particular component. Based on the performance data, the cloud may determine that at least one maintenance event occurs at other metrics that are different from the detection metric. Responsively, the cloud may adjust the detection metric based on a difference between the detection metric and the other metrics. The cloud may then detect operation of a particular robotic system at the adjusted detection metric and may responsively request maintenance for the particular component at the particular robotic system.

    Voltage conversion for an airborne wind turbine
    329.
    发明授权
    Voltage conversion for an airborne wind turbine 有权

    公开(公告)号：US10008973B1

    公开(公告)日：2018-06-26

    申请号：US14985808

    申请日：2015-12-31

    Applicant: X Development LLC

    Inventor： Leo Casey ,  Geoffrey Dolan

    IPC: H02P29/02 ,  F03D9/00 ,  F03D11/00 ,  H02P27/06

    CPC classification number: F03D17/00 ,  B64C39/022 ,  B64C2201/021 ,  B64C2201/122 ,  B64D27/02 ,  B64D27/24 ,  B64F3/00 ,  F03D9/255 ,  H02M2001/0093 ,  H02P27/06 ,  H02P29/028 ,  H02P29/032 ,  Y02E10/72

    Abstract: This disclosure discusses systems and methods related to the following example scenarios. When an aerial vehicle of an airborne wind turbine is functioning normally in motoring mode, a voltage converter may receive a nominal voltage from a power conversion system and provide the nominal voltage to the aerial vehicle. When the aerial vehicle is experiencing a fault in motoring mode, the voltage converter may receive the nominal voltage and provide a reduced fault voltage to the aerial vehicle. When the aerial vehicle is functioning normally in power-generating mode, the voltage converter may receive the nominal voltage from the aerial vehicle and provide the nominal voltage to the power conversion system. When the aerial vehicle is experiencing a fault in power-generating mode, the voltage converter may receive a reduced fault voltage from the aerial vehicle, boost the fault voltage, and provide the boosted fault voltage to the power conversion system.

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