Patents by Inventor Chaffra Affouda

Chaffra Affouda 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).

  • Foveal compressive upsampling
    Patent number: 11871131
    Abstract: An apparatus includes a sensor having an array of detectors. The sensor is configured to assign multiple detectors to a detector group corresponding to a block pixel. The sensor is also configured, for each frame of a set of frames, to apply a specified one of a set of mask patterns in order to select outputs of the detectors in the detector group and aggregate the selected outputs of the detectors in the detector group to determine pixel information for the block pixel. The apparatus also includes at least one processor configured to generate the frames using the pixel information for the block pixel, and upscale the portion of the at least one of the frames using the set of mask patterns to identify native pixels within the block pixel.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: January 9, 2024
    Assignee: Raytheon Company
    Inventors: David J. Gulbransen, Jae H. Kyung, Chaffra A. Affouda
  • FOVEAL COMPRESSIVE UPSAMPLING
    Publication number: 20230045356
    Abstract: An apparatus includes a sensor having an array of detectors. The sensor is configured to assign multiple detectors to a detector group corresponding to a block pixel. The sensor is also configured, for each frame of a set of frames, to apply a specified one of a set of mask patterns in order to select outputs of the detectors in the detector group and aggregate the selected outputs of the detectors in the detector group to determine pixel information for the block pixel. The apparatus also includes at least one processor configured to generate the frames using the pixel information for the block pixel, and upscale the portion of the at least one of the frames using the set of mask patterns to identify native pixels within the block pixel.
    Type: Application
    Filed: August 6, 2021
    Publication date: February 9, 2023
    Inventors: David J. Gulbransen, Jae H. Kyung, Chaffra A. Affouda
  • Readout integrated circuit containing image stabilization capabilities
    Patent number: 11388337
    Abstract: An apparatus includes an optical sensor configured to capture a plurality of input images. The apparatus also includes an analog circuit configured to produce a difference of Gaussians image for each of the input images. The apparatus further includes at least one processor configured to (i) determine motion error in the input images based on comparing the difference of Gaussians image and (ii) adjust at least some of the input images based on the determined motion error.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: July 12, 2022
    Assignee: Raytheon Company
    Inventors: Mark A. Massie, Chaffra A. Affouda, Richard J. Peralta
  • Computationally efficient method for building quantum heterostructures
    Patent number: 9305122
    Abstract: A computationally efficient method for building a superlattice structure that improves an optoelectronic device performance characteristic that depends on fundamental superlattice material properties such as absorption coefficient ?(?), radiative efficiency Rsp and/or electron density n.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: April 5, 2016
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Igor Vurgaftman, Jerry R. Meyer, Chaffra Affouda, Matthew P. Lumb, Edward H. Aifer