Patents by Inventor Kerri L. Cahoy

Kerri L. Cahoy has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220144460
    Abstract: Described is a spacecraft locker configured be deployed in outer space and configured to assemble satellites (e.g., CubeSats) within it and deploy them in outer space. In an embodiment, an unmanned spacecraft includes a housing configured to be deployed in a microgravity environment, the housing having an access point (e.g. a door), a storage area configured to store parts of a satellite, one or more robots movably positioned in the housing, and a controller configured to control at least one of the one or more robots to access parts from the storage area and to assemble the parts on an assembly platform of the housing. The controller may also control deployment of the assembled satellite through the door of the housing to a position in the microgravity environment.
    Type: Application
    Filed: November 10, 2021
    Publication date: May 12, 2022
    Inventors: Ezinne UZO-OKORO, Kerri L. CAHOY
  • Patent number: 10220965
    Abstract: Described herein are systems and methods for attitude determination using infrared Earth horizon sensors (EHSs) with Gaussian response characteristics. Attitude information is acquired by detecting Earth's infrared electromagnetic radiation and, subsequently, determining the region obscured by Earth in the sensors' fields of view to compute a nadir vector estimation in the spacecraft's body frame. The method can be applied when two sensors, each with known and distinct pointing directions, detect the horizon, which is defined as having their fields of view partially obscured by Earth. The method can be implemented compactly to provide high-accuracy attitude within small spacecraft, such as CubeSat-based satellites.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: March 5, 2019
    Assignee: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Tam Nguyen Thuc Nguyen, Kerri L. Cahoy, Meghan K. Quadrino
  • Publication number: 20180111706
    Abstract: Described herein are systems and methods for attitude determination using infrared Earth horizon sensors (EHSs) with Gaussian response characteristics. Attitude information is acquired by detecting Earth's infrared electromagnetic radiation and, subsequently, determining the region obscured by Earth in the sensors' fields of view to compute a nadir vector estimation in the spacecraft's body frame. The method can be applied when two sensors, each with known and distinct pointing directions, detect the horizon, which is defined as having their fields of view partially obscured by Earth. The method can be implemented compactly to provide high-accuracy attitude within small spacecraft, such as CubeSat-based satellites.
    Type: Application
    Filed: October 5, 2017
    Publication date: April 26, 2018
    Inventors: Tam Nguyen Thuc Nguyen, Kerri L. Cahoy, Meghan K. Quadrino
  • Patent number: 9809328
    Abstract: Described herein are systems and methods for attitude determination using infrared Earth horizon sensors (EHSs) with Gaussian response characteristics. Attitude information is acquired by detecting Earth's infrared electromagnetic radiation and, subsequently, determining the region obscured by Earth in the sensors' fields of view to compute a nadir vector estimation in the spacecraft's body frame. The method can be applied when two sensors, each with known and distinct pointing directions, detect the horizon, which is defined as having their fields of view partially obscured by Earth. The method can be implemented compactly to provide high-accuracy attitude within small spacecraft, such as CubeSat-based satellites.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: November 7, 2017
    Assignee: Massachusetts Institute of Technology
    Inventors: Tam Nguyen Thuc Nguyen, Kerri L. Cahoy, Meghan K. Quadrino
  • Publication number: 20150298827
    Abstract: Described herein are systems and methods for attitude determination using infrared Earth horizon sensors (EHSs) with Gaussian response characteristics. Attitude information is acquired by detecting Earth's infrared electromagnetic radiation and, subsequently, determining the region obscured by Earth in the sensors' fields of view to compute a nadir vector estimation in the spacecraft's body frame. The method can be applied when two sensors, each with known and distinct pointing directions, detect the horizon, which is defined as having their fields of view partially obscured by Earth. The method can be implemented compactly to provide high-accuracy attitude within small spacecraft, such as CubeSat-based satellites.
    Type: Application
    Filed: March 11, 2015
    Publication date: October 22, 2015
    Applicant: Massachusetts Institute of Technology
    Inventors: Tam Nguyen Thuc Nguyen, Kerri L. Cahoy, Meghan K. Quadrino