Patents by Inventor Christopher William Gregory

Christopher William Gregory 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).

  • Optical depth sensing systems using high speed colloidal quantum dot photodetectors
    Patent number: 12379205
    Abstract: An optical depth sensing system is provided including an active illumination source; and a colloidal quantum dot photodetector. The colloidal quantum dot photodetector having colloidal quantum dots as a light sensing elements and the system has rise times that are less than 5.0 ns and fall times less than 10.0 ns.
    Type: Grant
    Filed: November 30, 2022
    Date of Patent: August 5, 2025
    Assignee: SWIR Vision Systems Inc.
    Inventors: Ethan J. D. Klem, Christopher William Gregory, Jeffery Allan Hilton, Jr., Carmen Procida, Michael Bond, Tewodros Tessema
  • MULTIBAND FOCAL PLANE ARRAY (FPA) ENABLED BY THE COMBINATION OF MICROBOLOMETER AND COLLOIDAL QUANTUM DOT SHORT WAVE INFRARED (SWIR) DETECTORS ON A SINGLE READOUT INTEGRATED CIRCUIT (ROIC)
    Publication number: 20240429262
    Abstract: A multiband focal plane array (FPA) is provided including a readout integrated circuit (ROIC) substrate; a plurality of short wave infrared (SWIR) and long wave infrared (LWIR) pixels on the ROIC substrate; a microbolometer on the plurality of SWIR and LWIR pixels; and a colloidal quantum dot photodiode on the SWIR pixels between the SWIR pixels and the microbolometer. The microbolometer is coupled to the LWIR pixels through metal contacts on the LWIR pixels.
    Type: Application
    Filed: June 24, 2024
    Publication date: December 26, 2024
    Inventors: Christopher William Gregory, Ethan J.D. Klem, Jeffery Allan Hilton, JR.
  • OPTICAL DEPTH SENSING SYSTEMS USING HIGH SPEED COLLOIDAL QUANTUM DOT PHOTODETECTORS
    Publication number: 20230168078
    Abstract: An optical depth sensing system is provided including an active illumination source; and a colloidal quantum dot photodetector. The colloidal quantum dot photodetector having colloidal quantum dots as a light sensing elements and the system has rise times that are less than 5.0 ns and fall times less than 10.0 ns.
    Type: Application
    Filed: November 30, 2022
    Publication date: June 1, 2023
    Inventors: Ethan J.D. Klem, Christopher William Gregory, Jeffery Allan Hilton, JR., Carmen Procida, Michael Bond, Tewodros Tessema
  • Photodetectors Having Optical Grating Couplers Integrated Therein and Related Methods
    Publication number: 20220165893
    Abstract: An integrated device is provided including a substrate; a CQD photodetector on the substrate; and an integrated optical grating contact on the substrate. The integrated optical grating contact is a conductive grating contact and is provided between the substrate and the photodetector. The integrated device further includes a top contact on the photodetector.
    Type: Application
    Filed: November 22, 2021
    Publication date: May 26, 2022
    Inventors: Sean Hinds, Ethan J.D. Klem, Christopher William Gregory, Jeffery Allan Hilton, JR., Greg Alan Hames
  • Method and apparatus for producing an electrical property image of substantially homogeneous objects containing inhomogeneities
    Patent number: 7627362
    Abstract: An electrical parameter imaging apparatus and method includes the acquisition of a charge distribution pattern on an array of electrodes that surround an object being imaged. In addition the exterior boundary, or contours of the object is measured by an array of light beams and associated light sensors. The contour measurement is employed to provide a first estimate of the object geometry needed to compute an electrical parameter image from the acquired charge distribution pattern.
    Type: Grant
    Filed: November 4, 2003
    Date of Patent: December 1, 2009
    Assignee: WiSys Technology Foundation
    Inventors: Christopher William Gregory, William D. Gregory
  • Method and apparatus for producing an electrical property image of substantially homogeneous objects containing inhomogeneities
    Publication number: 20040167421
    Abstract: An electrical parameter imaging apparatus and method includes the acquisition of a charge distribution pattern on an array of electrodes that surround an object being imaged. In addition the exterior boundary, or contours of the object is measured by an array of light beams and associated light sensors. The contour measurement is employed to provide a first estimate of the object geometry needed to compute an electrical parameter image from the acquired charge distribution pattern.
    Type: Application
    Filed: November 4, 2003
    Publication date: August 26, 2004
    Inventors: Christopher William Gregory, William D. Gregory
  • Method and apparatus for producing an electrical property image using a charge correlation matrix
    Patent number: 6763263
    Abstract: An electrical property imaging system includes an array of sensors placed around an object to measure the surface charges thereon as a sinusoidal voltage is applied thereacross. The resulting distribution of charges inside the object are calculated using a stored charge correlation matrix. Electrical property images are produced from the internal charge distribution image.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: July 13, 2004
    Assignee: WiSys Technology Foundation
    Inventors: Christopher William Gregory, William D. Gregory
  • Method and apparatus for producing an electrical property image using a charge correlation matrix
    Publication number: 20020038096
    Abstract: An electrical property imaging system includes an array of sensors placed around an object to measure the surface charges thereon as a sinusoidal voltage is applied thereacross. The resulting distribution of charges inside the object are calculated using a stored charge correlation matrix. Electrical property images are produced from the internal charge distribution image.
    Type: Application
    Filed: July 26, 2001
    Publication date: March 28, 2002
    Inventors: Christopher William Gregory, William D. Gregory