Patents by Inventor James Leatham

James Leatham 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).

  • Patent number: 11644699
    Abstract: Methods and apparatus for a photonic acoustic-optic frequency shifter having an integrated layer of lithium niobate. An input port receives input light and an acoustic wave generator generates an acoustic wave into a deflection area comprising a layer of lithium niobate. A first output port exits undeflected light from the deflection area as transmitted light and a second output port exits light deflected in frequency by the acoustic wave in the deflection area.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: May 9, 2023
    Assignee: Raytheon Company
    Inventor: James Leatham
  • Publication number: 20220334420
    Abstract: Methods and apparatus for a photonic acoustic-optic frequency shifter having an integrated layer of lithium niobate. An input port receives input light and an acoustic wave generator generates an acoustic wave into a deflection area comprising a layer of lithium niobate. A first output port exits undeflected light from the deflection area as transmitted light and a second output port exits light deflected in frequency by the acoustic wave in the deflection area.
    Type: Application
    Filed: April 20, 2021
    Publication date: October 20, 2022
    Applicant: Raytheon Company
    Inventor: James Leatham
  • Patent number: 10392136
    Abstract: A method comprises operating a remote sensing vehicle comprising a host bus platform and a variable pitch instrument platform movably coupled to the host bus platform in at least one degree of freedom. The method comprises establishing a pointing position and scanning a target surface with the variable pitch instrument platform. The variable pitch instrument platform is dynamically movable relative to the host bus platform to vary the pointing position of the variable pitch instrument platform, thereby decoupling payload pointing from the host bus platform. Thus, payload data collection is independent of attitude control of the host bus platform. A method is provided of varying ground-sample-distance (GSD) value with a remote sensing vehicle. A remote sensing vehicle comprises a host bus platform and a variable pitch instrument platform for scanning or data collection of a target surface, and an dynamic coupling device (e.g.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: August 27, 2019
    Assignee: Raytheon Company
    Inventors: James Leatham, Matthew E. Jenkins, Tim Johnson
  • Publication number: 20190084698
    Abstract: A method comprises operating a remote sensing vehicle comprising a host bus platform and a variable pitch instrument platform movably coupled to the host bus platform in at least one degree of freedom. The method comprises establishing a pointing position and scanning a target surface with the variable pitch instrument platform. The variable pitch instrument platform is dynamically movable relative to the host bus platform to vary the pointing position of the variable pitch instrument platform, thereby decoupling payload pointing from the host bus platform. Thus, payload data collection is independent of attitude control of the host bus platform. A method is provided of varying ground-sample-distance (GSD) value with a remote sensing vehicle. A remote sensing vehicle comprises a host bus platform and a variable pitch instrument platform for scanning or data collection of a target surface, and an dynamic coupling device (e.g.
    Type: Application
    Filed: September 18, 2017
    Publication date: March 21, 2019
    Inventors: James Leatham, Matthew E. Jenkins, Tim Johnson