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    Multi-Pathway Satellite Communication Systems and Methods
    1.
    发明申请
    Multi-Pathway Satellite Communication Systems and Methods 有权

    公开(公告)号：US20210036772A1

    公开(公告)日：2021-02-04

    申请号：US16529299

    申请日：2019-08-01

    申请人： Planet Labs, Inc.

    发明人： Henrique Miranda ,  Kiruthika Devaraj

    IPC分类号： H04B7/185 ,  H04N5/232 ,  H04L12/725 ,  G06T7/30

    摘要： Systems and methods for controlling satellites are provided. In one example embodiment, a computing system can obtain a request for image data. The request can be associated with a priority for acquiring the image data. The computing system can determine an availability of a plurality of satellites to acquire the image data based at least in part on the request. The computing system can select from among a plurality of communication pathways to transmit an image acquisition command to a satellite based at least in part on the request priority. The plurality of communication pathways can include a communication pathway via which the image acquisition command is indirectly communicated to the satellite via a geostationary satellite. The computing system can send the image acquisition command to the selected satellite via the selected communication pathway.

    Systems and Methods for Implementing Time Delay Integration Imaging Techniques in Conjunction with Distinct Imaging Regions on a Monolithic Charge-Coupled Device Image Sensor
    2.
    发明申请
    Systems and Methods for Implementing Time Delay Integration Imaging Techniques in Conjunction with Distinct Imaging Regions on a Monolithic Charge-Coupled Device Image Sensor 审中-公开

    公开(公告)号：US20200336688A1

    公开(公告)日：2020-10-22

    申请号：US16841522

    申请日：2020-04-06

    申请人： Planet Labs Inc.

    发明人： Ignacio Zuleta ,  Adam Fritzler

    IPC分类号： H04N5/372 ,  H04N5/369 ,  H04N9/04 ,  H01L27/146 ,  H01L27/148 ,  H04N5/353 ,  H04N5/378

    摘要： Systems and methods in accordance with embodiments of the invention implement TDI imaging techniques in conjunction with monolithic CCD image sensors having multiple distinct imaging regions, where TDI imaging techniques can be separately implemented with respect to each distinct imaging region. In many embodiments, the distinct imaging regions are defined by color filters or color filter patterns (e.g. a Bayer filter pattern); and data from the distinct imaging regions can be read out concurrently (or else sequentially and/or nearly concurrently). A camera system can include: a CCD image sensor including a plurality of pixels that define at least two distinct imaging regions, where pixels within each imaging region operate in unison to image a scene differently than at least one other distinct imaging region. In addition, the camera system is operable in a time-delay integration mode whereby time delay-integration imaging techniques are imposed with respect to each distinct imaging region.

    Systems for Synthetic Aperture Radar Transmit and Receive Antennas
    3.
    发明申请
    Systems for Synthetic Aperture Radar Transmit and Receive Antennas 审中-公开

    公开(公告)号：US20200292695A1

    公开(公告)日：2020-09-17

    申请号：US16889655

    申请日：2020-06-01

    申请人： Planet Labs Inc.

    发明人： Kiruthika Devaraj ,  Ming-chun Paul Lee

    IPC分类号： G01S13/90 ,  G01S13/10 ,  H01Q3/26 ,  G01S7/03 ,  H01Q21/29 ,  H01Q19/10 ,  H01Q21/06 ,  H01Q9/04 ,  H01Q15/14

    摘要： Synthetic aperture radar transmit and receive antenna systems and methods of transmitting and receiving radar signals are disclosed. In one embodiment, a transmit and receive antenna system includes a transmit antenna array configured to transmit a plurality of radio frequency transmit signals, the transmit antenna array including a plurality of patch antenna elements mounted to a printed circuit board, each patch antenna element belonging to a subarray, and one or more power amplifiers, each power amplifier feeding a subarray of the patch antenna elements, and a reflectarray receive antenna configured to receive radio frequency signals including a plurality of reflectarray antenna elements mounted to a printed circuit board, at least one antenna feed configured to receive radio frequency signals reflected from the plurality of reflectarray antenna elements, and at least one low noise amplifier electrically connected to the at least one antenna feed.

    Automated schedule calculation for controlling a constellation of satellites
    5.
    发明授权
    Automated schedule calculation for controlling a constellation of satellites 有权

    公开(公告)号：US09651946B1

    公开(公告)日：2017-05-16

    申请号：US15197540

    申请日：2016-06-29

    申请人： Planet Labs Inc.

    发明人： Michael Rubel ,  James Mason

    IPC分类号： G05D1/00 ,  B64G1/10 ,  B64G1/24

    CPC分类号： G05D1/0027 ,  B64G1/1021 ,  B64G1/1085 ,  B64G1/242

    摘要： Particular embodiments also include a optimization and simulation service that can analyze different variables for scheduling the satellites. The optimization and simulation service operates automatically to schedule satellites and ground stations to obtain their highest attainable performance relative to the system operator's goals as well as to respond to various unexpected behavior or events and performance variations, modifying the schedule accordingly. The optimization and simulation service leverages the sparsity of the system in the optimization such that the optimization and simulation service can calculate the change in utility for one satellite without reference to unimpacted satellite schedules. This allows the schedule to be calculated efficiently and provides optimum usage of the satellites.

    Silicate Aggregates With Property Spectrums
    7.
    发明申请
    Silicate Aggregates With Property Spectrums 审中-公开

    公开(公告)号：US20190256429A1

    公开(公告)日：2019-08-22

    申请号：US16280001

    申请日：2019-02-19

    申请人： Good Planet Labs, Inc.

    发明人： Robert Michael Hust

    IPC分类号： C04B41/50 ,  C04B41/00 ,  C04B14/24 ,  C04B18/02 ,  C01B33/18

    摘要： Formation and/or generation of silicate aggregates having a graduated linear spectrum of physical and/or chemical properties are disclosed. For example, a given foamed silicate aggregate may include a graduated linear spectrum of open-cell to closed-cell structures, porous to solid and/or anti-porous structures, and/or both. The foamed silicate aggregate may also include one portion that is heavier than another portion. The aggregate may be constructed of a material that sinks such that the heavier portion contacts a bottom of a body of water, or the aggregate may be constructed of a material that floats such that the heavier portion is below the surface of the water. The aggregate may additionally be stratified and/or may include suspended beads of material.

    Restraint System For Deployment Of A Feature On A Satellite
    8.
    发明申请
    Restraint System For Deployment Of A Feature On A Satellite 审中-公开

    公开(公告)号：US20190210743A1

    公开(公告)日：2019-07-11

    申请号：US15863376

    申请日：2018-01-05

    申请人： Planet Labs Inc.

    发明人： Jedd Perry ,  Narinder Kumar ,  Kelly Hering ,  Kevin Meissner ,  Buddy Gardineer ,  Ben Howard

    IPC分类号： B64G1/22 ,  H01C7/10 ,  H01C7/13

    摘要： In one embodiment, an apparatus is attached to a feature to be deployed on a satellite. The apparatus includes a first material having an impedance, a second material coupled to the first material configured to provide a current or voltage to the first material causing the first material to generate heat based on the impedance after a launch process of a launch vehicle carrying the satellite has completed, and a third material configured to change state at a transition temperature. A release mechanism is coupled to the third material and holds the feature in an undeployed position on the satellite. The heat generated by the second material causes the third material to change state when the transition temperature range is reached and the release mechanism is released from the third material when the third material is in the second state to deploy the feature.